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Sep 2024
Ma YongCorresponding author
A new approach to protecting the side chain of lysine during solid-phase peptide synthesis in an aqueous environment is explored. The objectives of this study are twofold: 1) to reduce the consumption of chemical solvents in peptide synthesis, and 2) to lower the costs associated with lysine side chain protection. In an effort to minimize the usage of organic solvents in amino acid side chain protection for peptide synthesis,18-crown-6 molecule (18C6) was introduced as protective agent for Lysine (Lys) side chain protection. 18C6 is utilized to protect ε-amino group of on side chain of Lys in peptide synthesis. 18C6 features cavity at its center. The 18C6 molecules exhibit a unique and distinctive host-guest affinity towards ε-amino group on side chain of Lys. 18C6 bind to Lys side chain through hydrogen bonds with ε-amino group of Lys, eliminating the need for chemical reactions in organic solvents to attach protective molecules to the side chain groups. This simplifies the side chain protection procedure significantly for Lys, reducing the consumption of organic solvents. Consequently, this procedure offers advantages for contributing to a greener planet by minimizing chemical reactions and organic solvent usage. Additionally, the cost of side chain protection of Lys is dramatically reduced.
Mar 2024 DOI 10.14302/issn.2642-3146.jec-24-4935
Yakubu SufyanCorresponding author
Promoting responsible energy usage in student hostels and residential buildings plays a crucial role in ensuring sustainable development. By implementing cost-efficient strategies for managing and conserving energy, both students and homeowners can not only reap economic and social benefits but also mitigate the adverse environmental effects associated with energy consumption. Unfortunately, student hostels and residential buildings in developing countries like Ghana are falling behind in the adoption of energy efficiency and management practices, thereby missing out on valuable implementation opportunities. This study investigates the potential for energy efficiency and conservation measures in student hostels, specifically the GETFUND hostel of the University of Energy and Natural Resources in Ghana. The hostel's monthly energy consumption is approximately 64,929.458kWh, which translates to $5,667.20. The objectives of the study include analysing the current electricity consumption pattern, identifying energy misuse, and recommending measures to save energy, as well as calculating the financial benefits of implementing energy management practices. The methodology employed is an energy audit approach. The results of this study can contribute to overall energy conservation efforts in Ghana and may be applied to other university residence halls in sub-Saharan African countries with similar climatic and energy-use characteristics. In a broader sense, the primary objective of this study is to enhance the energy efficiency of the GETFUND hostel and minimize energy wastage, resulting in substantial financial savings.
Jan 2021 DOI 10.14302/issn.2575-1212.jvhc-20-3467
Jairo Kavana NicholasCorresponding author
St. Francis University College of Health and Allied Sciences, P.O Box 175, Ifakara, Tanzania
Background In natural conditions Cyclops are the first intermediate hosts in the life cycle of Spirometra species. In this paper we describe simple method of culturing Copepod of the genus Cyclops for use the first intermediate host in experimental life cycle of Spirometra species. Methods Paramecium was first cultured to be used as food for Cyclops. Sample of water was collected from a pond within Sokoine University. About 100 ml of water and pre-boiled wheat grains were transferred in a Petri dish and kept under laboratory conditions for 7 days, a swarm of Paramecium was formed. An adult female egg sacked Cyclops from a natural water pond in Tarangire National Park, Tanzania was added in a new Petri dish containing tap water, 0.3 ml of Paramecium suspension and 4 pre-boiled wheat grains. The mixture was kept under laboratory conditions temperature 26-29⁰C and observed daily. Results Eggs from the single Cyclops hatched to nauplius. The average time of developing to nauplius I was 1.2 days, nauplius I to copepodite I was 6.9 days, and copepodite I to adult female Cyclops was 26.3 days. The average measurements of naupliusI were 120.2µm length and 80.0µm width while the adult female was 846.3µm length and 284.6µm width. The adult female produced 1 to 8 broods (mean 4.3). The life span of Cyclops averaged 43.1 days. Conclusion The Cyclops cultured in the laboratory were fed Paramecium and used as first intermediate host in the experimental life cycle of Tanzanian Spirometra species.
Jun 2020 DOI 10.14302/issn.2641-4538.jphi-20-3426
Cheng KangCorresponding author
Basic Medicine, Medical School, Qingdao Binhai University, Qingdao, P.R. China
The COVID-19 pandemic has killed more than 400 thousand and infected more than 7 million people in the whole world as of 06/10/2020. Many open systems, such as educations, transportations, entertainments, sports or foods, have been completely or partially locked down in many regions of the world to prevent COVID-19 spreading. Therefore, how to reopen all of the open systems after the shutdown has become a world urgent issue. Evidences of COIVD-19 have showed: person-to-person transmission occurs among close contacts; virus droplets (or aerosols) play an important role in the transmission; people can prevent COVID-19 by measures of mask-wearing or maintaining social distancing. However, how these measures work to prevent COVID-19 is still not clear in a perspective of biomedical Infophysics. In this study, (1) we think the transmission of infection can be accomplished by real or virtual person; (2) we define a virtual person as ghost airflow, a term we coin to describe virus droplets (or aerosols) that are initially generated by human carriers and remain in the air to be transmitted. These ghost airflows are as dangerous as the real virus carriers particularly in enclosed (confined) environments; (3) we propose biomedical infophysical models (BMIPM) of filtering the ghost airflows by mask-wearing and maintaining social distancing, to help people to understand the filtering mechanisms and willingly follow the guidelines of preventing covid-19, and therefore to successfully reopen all of the open systems after the shutdowns (lockdowns) and (or) to avoid the shutdowns (lockdowns) in future epidemics or pandemics. Significantly, we compare the prevention efficiencies of COVID-19 between people who are accustomed and not accustomed to masks based on the published WHO, CDC or NHC pandemic data. The compared results support our models in this investigation. Coronaviruses easily survive and have high toxicity, in dirty, wet and cold environments, and the air pollution is linked with higher COVID-19 death rates. The dingy environments and air-conditioning, freezing systems sufficiently provide such necessary dirty, wet and cold conditions and polluted airflows to exacerbate the mortality rate of COVID-19. Therefore, we strongly suggest: to use air conditioners as less as possible, to turn the wind levels as low as possible and to clean (disinfecting) the air-conditioning systems (filters and channels) and environments as frequent as possible.
Feb 2019 DOI 10.14302/issn.2639-3166.jar-18-2576
Haroun Mohamed Adam AbubakerCorresponding author
Cotton mealybug (Phenacoccussolenopsis) is a serious devastating pest which goes on a wide array of plant families. The pest spread all over the world from cool to dry hot regions. The main objective of this study was to investigate the food preference and behavior of P. solenopsis Tinseley (Hemiptera:Pseudococcidae) towards selected host plants in Khartoum State, Sudan, where a multi-choice experiment under laboratory conditions was adopted. Eight plant species were screened for attractiveness and food preference to Cotton mealybug. Where the proportions of the 1st, 2nd and 3rd nymphal instars and the adult females were recorded at 2, 8 and 24 hours after release, and compared with Chinese rose (Rosa chinensis) the control. The result revealed that the proportions of the 1st, 2nd and 3rd nymphal instars and adult females were maximum on plants of family Malvaceae, particularly the Okra (Hibiscus esculentus) followed by Cotton (Gossypium sp.) and Hambouk (Abutilon pannosum) as compared with the control. However, in contrast, the proportions were very low on unpalatable plants like Zaleya (Locally known as Raba) (Zaleyapentandra) and Eggplant (Solanum melongenaL.). However, in contrast, the proportions were very low on unpalatable plants like Zaleya (Locally known as Raba) (Zaleya pentandra) and Eggplant (SolanummelongenaL.). In conclusion, the most favorable host plants of the Cotton mealybug belonging to the family Malvaceae, while the families of Solanaceae [Egg plant (SolanummelongenaL.)] and Aizoaceae (Raba) were found to be the least preferred host plants.
May 2018 DOI 10.14302/issn.2576-9383.jhhr-18-2111
Silbermann MichaelCorresponding author
Middle East Cancer Consortium (MECC)
The continuous waves of refugees from Africa and the Middle East to Europe present major inter¬cultural challenges to European health professionals and to society at large. A recent workshop in Sicily brought together local physicians, nurses, psychologists and managers of governmental agencies, along with representatives from Lebanon, Israel, Iraq, Iran, Sudan, Tunisia, Jordan and the European Society of Medical Oncology (ESMO) to develop training programs aimed at formulating dialogue between regional professionals and refugees. A major barrier refugees face is a lack of verbal and cultural communication, which hinders their smooth absorption into the new society. Cultural mediators who speak Arabic and Italian and understand the refugees' faith, tradition and beliefs are vital to successfully build bridges of trust between caregivers and refugees. Most asylum seekers experience anxiety, fear, and depression upon arrival in Europe. To achieve trust, all workshop participants agreed to develop a palliative care model that would best suit the unique circumstances now facing some Mediterranean countries and assist in overcoming the suffering of refugees during their initial stay in Europe. Such a model would include bio-psychosocial elements, essential for a culturally sensitive approach and based on core ethical principles.
Dec 2025 DOI 10.14302/issn.2641-4538.jphi-25-5613
de Dieu Harerimana JeanCorresponding author
Background Domestic violence among HIV discordant couples poses significant public health challenges, affecting treatment adherence and HIV transmission risks. This study examined factors contributing to domestic violence among HIV discordant couples in Kicukiro District, Rwanda. Methods A cross-sectional study was conducted among 384 HIV discordant couples from eleven health centers using stratified systematic sampling. Data were collected through structured face-to-face interviews and analyzed using descriptive statistics and bivariate analysis. Results Domestic violence prevalence was 41.1% physical violence, 34.2% sexual coercion, and 52.3% emotional abuse. Key socio-demographic risk factors included female gender (56% vs. 29% males, p<0.001), older age (61% in ≥55 years vs. 32% in 18-24 years, p=0.004), unemployment (55% vs. 34% formal employment, p=0.014), and financial hardship (63% vs. 25% comfortable situations, p=0.002). Behavioral factors included alcohol use (58% vs. 38%, p=0.021), substance abuse (62% vs. 35%, p<0.001), and poor conflict resolution (72% vs. 25%, p<0.001). Contextual factors like hostile HIV disclosure reactions (68% vs. 34%, p<0.001) and HIV-related stigma (60% vs. 35%, p<0.001) significantly increased violence risk. Conclusions Domestic violence among HIV discordant couples is multifactorial, driven by socio-economic, behavioral, and HIV-related factors. Integrated interventions addressing economic empowerment, conflict resolution skills, stigma reduction, and couple-centered counseling are urgently needed.
Dec 2025 DOI 10.14302/issn.2997-2108.jcc-25-5518
Steven KikonyogoCorresponding author
Cervical cancer is the fourth most common cancer in women globally, with 660,000 new cases and 350,000 deaths in 2022. The burden is disproportionately high in low- and middle-income countries (LMICs), particularly sub-Saharan Africa. Despite proven interventions like HPV vaccination and screening, uptake remains low. While cervical cancer screening has been studied in the general population, little is known about uptake among refugee women in Uganda, which hosts approximately 1.7 million refugees. This study examines cervical cancer screening uptake and associated factors among refugee women in Uganda. Methods We conducted a cross-sectional secondary analysis of the 2021 Uganda Refugee Population-based HIV Impact Assessment (RUPHIA) survey, focusing on women aged 21–49 in refugee settlements in the West Nile and South-Western regions, which host 90% of Uganda’s refugee population. The primary outcome was self-reported cervical cancer screening status. We used descriptive statistics and logistic regression to identify factors associated with screening uptake. Results Among 731 women, only 72 (9.8%) reported undergoing cervical cancer screening. The mean age of screened women was 37 years (±7), compared to 32 years (±8) for unscreened women. Screening uptake was significantly higher among women aged 31–39 years (AOR = 2.67, 95% CI: 1.32–5.52, p = 0.007), married women (AOR = 12.0, 95% CI: 1.76–163, p = 0.03), and those in polygamous relationships (AOR = 4.76, 95% CI: 1.96–11.1, p < 0.001) Conclusion Cervical cancer screening uptake among refugee women in Uganda is critically low. Integrating culturally sensitive screening programs into refugee health services and addressing socio-economic barriers could improve access and utilization.
Dec 2025 DOI 10.14302/issn.2768-5209.ijen-25-5762
A. Abdellatif MahaCorresponding author
Sudan's ecological landscape is characterized by various zones, including deserts, semi-deserts, and savannas, which host a diverse array of forests, rangelands, and numerous plant and animal species. However, the sustainable management of these resources is becoming increasingly challenging due to human activities and the impacts of climate change. This article presents the results of a research project focused on monitoring and documenting biodiversity in Sudan's semi-arid regions, particularly emphasizing insect diversity. Insects are vital for maintaining ecosystem health through processes such as nutrient cycling, decomposition, pollination, and acting as natural predators to pests. Field surveys were conducted across three Sudanese states—North Kordofan, Gezira, and Khartoum—to assess the diversity of flora and fauna. Specifically, El Rawakeeb semi-arid land in Khartoum state was investigated, which comprised three sites with varying soil elevations: a hilly site at 420 meters above sea level, a flat site at 416 meters, and a valley site at 411 meters. Researchers utilized direct collection methods and butterfly nets to gather insect specimens, which were subsequently preserved and identified for further analysis. Diversity indices, including Simpson’s Diversity Index, Shannon-Wiener Index, and Margalef Richness Index, were computed to compare the biodiversity of these sites, along with metrics for evenness and species richness. Permanova analysis was carried out for insect variation between the study sites. A total of 1541 insect specimens were gathered from El Rawakeeb, encompassing 34 species distributed across 21 families and 9 orders. The order Lepidoptera exhibited the greatest number of species (35.29%), followed by Coleoptera (20.59%). The orders Neuroptera, Orthoptera and Thysanoptera recorded the fewest species (2.94% each). From the hilly site, 514 insect specimens were collected, representing 9 orders, among which Hymenoptera included 4 species, while Lepidoptera had 3 species, and Odonata, Orthoptera, and Thysanoptera each had 1 species. The highest individual counts were recorded for Copriniklobe (dung beetle), Dacus longistylus (fruit fly), Camponotussp. (carpenter ant), and Anax ephippiger (dragonfly). In a flat site, 484 insect specimens were collected, classified into 15 species, 12 families, and 7 orders. The highest individual counts were noted in four species: Onthophagusnuba (dung beetle), Dacus longistylus (fruit fly), Camponotussp. (carpenter ant), and Anax ephippiger (dragonfly). In a valley site, 543 insect specimens were collected, categorized into 17 species, 16 families, and 9 orders. Insect Diversity in three research sites. Simpson's Diversity Index revealed varying levels of insect diversity across the three sites. The valley site exhibited the highest diversity level with an index score of 0.857, followed by the flat site at 0.826, and the hilly site at 0.819. The Shannon diversity index of 2.22 indicated the highest diversity among the three sites, suggesting a relatively diverse insect community. The relative abundance of insects was greatest in the valley site at 35.24%, followed by the hilly site at 33.35%, and the flat site at 31.41%. The Margalef Richness Index indicated a moderate level of richness in the insects collected from the three locations. Certain insect species were found in some sites but were absent in others. The PERMANOVA revealed notable variations among the three study sites (F = 2.24, p-value = 0.035).
Jun 2024 DOI 10.14302/issn.2374-9431.jbd-24-5077
Isea RaúlCorresponding author
Dengue is a global arbovirus disease primarily carried by Aedes aegypti and Aedes albopictus mosquitoes. It has four serotypes (DENV1, DENV2, DENV3, and DENV4) and is classified into distinct genotypes. The epidemic is complicated by immunological interactions and viral lineage turnover. Neurological problems are commonly associated with DENV2 and DENV3, with DENV2 displaying the most severe symptoms. Direct viral invasion, host-mediated immune system reactions, or host-mediated metabolic alterations can all result in dengue-related neurological issues. The three dengue vaccinations and the significance of meta-analyses for genetic data will also be covered. Finally, establish a connection with the microRNAs associated with dengue fever, creating new opportunities for the creation of dengue treatment regimens involving microRNAs.
Jan 2024 DOI 10.14302/issn.2379-7835.ijn-23-4802
Fatema AkterCorresponding author
The host's health may benefit from the probiotic microorganisms found in many products available on the market. In addition to food, these products include dietary supplements, food for special medical purposes, medicines, cosmetics, and medical devices. These products have anywhere from one to a dozen strains of bacteria from the same or different species, and sometimes they also have strains of fungi. Since the health benefits of probiotics depend on the strain, the number of cells in a dose, and the absence of pathogenic microorganisms, it is crucial to regulate the quality of probiotics. Depending on how a product is classified, how it looks, and how many microorganisms it has, it is very important to count and identify the microorganisms correctly. We investigated nine probiotic products in this study: five commercially available probiotic supplements and four probiotic drinks. The majority of commercial products did not contain all of the labeled lactic acid bacteria, nor did they contain any possibly harmful microorganisms. To ensure that consumers in Bangladesh obtain good products, probiotic-containing product rules and regulations should be developed. Furthermore, it should be the duty of probiotics-containing product manufacturers to provide consumers with information that is accurate, reliable, and compliant with legal and scientific requirements
Dec 2023 DOI 10.14302/issn.2690-6759.jpar-23-4764
Bekele DamtewCorresponding author
Helminth parasite infections in sheep are of major veterinary importance in many agro-ecological zones and are a primary factor in the productivity of sheep. The main objective of this study was to determine helminth parasites prevalence and their economic loss caused on sheep with its control approach at the study area. A cross-sectional study using a simple random sampling procedure was used to study helminth parasite identification at Gudaya Bila district during 2022 in two seasons of the year: winter (January - March) and summer (June - August). Out of 384 sheep chosen at random sampling from five Kebeles in the Gudaya Bila district (Welenelemu, Harogodisa, Chalejima, Hagelogidami, and Bila) that underwent flotation and sedimentation procedures, about 149 were infected by ay helminth parasites, with an overall prevalence 38.8%. Regarding the distribution of helimenth parasites at the class level, the prevalence was 13.9%, 11.7%, and 3.9% in trematoda, nematode, and cestoda, respectively. The helminth species that had highest prevalence were Fasciola species (19.5%), Haemonchus species (14.76%), Strongyloides species (10.74%), and Schistosoma species (9.4%), and those that had the least prevalence were Moniezia species (6.04%), Paramphistomum species (5.4%), Taenia species (4.02%), Nematodirus species (3.3%) and Trichostrongylus species (1.34 %). The summer season was favorable for helminths parasite transmission. The prevalence of helminths in the summer season was 98 (25.5%), and in the winter season it was 51 (13.3%). The study shows that the gastrointestinal helminth parasite was a major health problem and had an impact on the production of sheep in the study area. Therefore, a detailed study should be conducted to identify the parasite at the species level, and further investigation will be needed to study the association of the prevalence of helminth parasites within age, sex and the agroecology of sheep in the area. Then educating the people about the impacts of helminths is needed to control them.
Oct 2023 DOI 10.14302/issn.2575-1212.jvhc-23-4532
Abda Neja SultanCorresponding author
Camels are a significant source of income for nomadic populations in many developing countries, including Ethiopia. Camels are well adapted to dry and semi-dry regions, providing income, food security, and transportation. However, camel production and productivity are constrained by infectious diseases, such as brucellosis, which is a highly infectious bacterial disease that affects camels and humans worldwide. Brucellosis causes significant economic losses due to abortion, low herd fertility, and decreased milk production. In Ethiopia, the prevalence of camel brucellosis varies depending on factors related to the host, agent, climate, and management system, with a reported prevalence ranging from 0.5% to 11.9%. Accurate diagnosis of camel Brucellosis is essential for herd-based screening of animals. Although culturing the pathogen is the preferred method for diagnosis, serological tests such as Rose-Bengal plate test (RBPT), Enzyme-linked immunosorbent assay (ELISA), and Complement fixation test (CFT) and polymerase chain reaction (PCR) assays have been developed. Implementing effective diagnosis and surveillance systems to control the spread of brucellosis in animals and humans is very important, on top of awareness campaigns, vaccination programs, and suitable laboratory establishment recommended. Continued research is essential to maintain the health and productivity of camel populations, particularly in pastoral areas where camels play a significant role in the livelihood of communities. Therefore, the present paper views the seropositive prevalence and potential risk factors associated with camel brucellosis in Ethiopia.
Aug 2023 DOI 10.14302/issn.2641-9181.ijnr-23-4658
Oakley ReginaCorresponding author
Brucella species cause a high burden of disease globally, infecting both humans and animals; however, One Health has been under-appreciated in Colombia. This study aimed to determine the seroprevalence of Brucella spp. in two remote indigenous communities from the Sierra Nevada de Santa Marta, Colombia. These communities live in close contact with their livestock, indicating a potential susceptibility to zoonotic pathogens. The livestock routinely kept by these communities include cattle, small ruminants and pigs, the known hosts of human pathogenic Brucella spp.. A low level of exposure to Brucella spp. was documented, with only one positive participant among 539 participants (0.2%; 95% CI 0.0 – 1.0). Nevertheless, due to the high risk that zoonoses pose, we recommend discussions with the community for the potential establishment of One Health surveillance studies for the early detection and prevention of future zoonotic disease threats.
Jul 2023 DOI 10.14302/issn.2643-2811.jmbr-23-4556
Isea RaulCorresponding author
The present work shows that it is possible to analytically solve a general model to explain the transmission dynamics of SARS-CoV-2. First, the within-host model is described, and later a between-host model, where the coupling between them is the viral load of SARS-CoV-2. The within-host model describes the equations involved in the life cycle of SARS-CoV-2, and also the immune response; while that the between-Host model analyzes the dynamics of virus spread from the original source of contagion associated with bats, subsequently transmitted to a host, and then reaching the reservoir (Huanan Seafood Wholesale Market in Wuhan ), until finally infecting the human population.
Apr 2023
Gobato RicardoCorresponding author
Through T-cell engineering, researchers at the California South University (CSU) Cancer Research Institute (CRI) have shown that tumor growth can be stopped in a variety of cancers and prevented from spreading to other tissues. Findings from this study are the result of decades of research by Professor Ph.D. A. Heidari and our team of CSU, who discovered a protein called AH that can inhibit the growth and spread of cancer cells in several different ways. They become in the tissues of the body. The T cells were armed with MDA-7/AH to target cancer more widely. The engineering of T cells to produce MDA-7/AH causes cancer cells to be destroyed regardless of the expression of the target molecules. The tumor site is often very hostile to immune cells. It was found in the research that MDA-7/AH can help T cells proliferate and increase the number of cancer cells. The T cells were armed with MDA-7/ AH to target cancer more widely. The engineering of T cells to produce MDA-7/AH causes cancer cells to be destroyed regardless of the expression of the target molecules. The tumor site is often very hostile to immune cells. We discovered that MDA-7/AH can help T cells proliferate and increase the number of cancer cells.
Mar 2022 DOI 10.14302/issn.2997-2248.jwl-22-4074
Ahmed Kamal SamiaCorresponding author
Professor Dr. Virology department, Animal Health Research Institute, Egypt
Camels imported from Africa enter Egypt at Southeast borders. Movement of life animals help spreading of transboundary diseases from endemic areas to free areas. Lappet-faced vulture in Egypt territory represents highly valuable gift of nature, it is recorded in Red sea zone of Egypt. Their numbers indicate vulture breeding rate was promising for such endangered species. The Egyptian authority played a great role in protecting this land from destructive behavior against wild life. The raven accompany lappet-faced vulture, while eating together, which indicates healthy atmosphere at their habitat. This work performed while studying the epidemiology of this region and the impact of movements of live animals coming from Africa on trans-boundary diseases. Lappet-faced vultures and Raven play major role in preventing transmission of infectious agents from camel carcasses. However, Vulture has strong digestive system that kill a wide range of harmful microorganisms. Moreover, these scavenge birds are considered dead end hosts for these diseases. The study provides vivid proof of the innate intelligence that distinguishes the raven, as well as evidence that the black bird possesses a common language among themselves and between them and the Lappet-faced vulture. Lappet-faced vulture is usually nesting at acacia trees & mountains. However some acacia trees showed defected growth as a result of the strong wind, such observation is of great importance to understand geography of such habitat. Lappet-faced vulture is endangered species and need more attention and care.
Aug 2021 DOI 10.14302/issn.2643-6655.jcap-21-3888
Monique J. Grant CokeCorresponding author
The number of children with SEN is continuously growing, leading to pressure on the few special schools available in the USA. Furthermore, the adoption of a special school system has been criticized on the basis that it isolates and discriminates against children with special educational needs and disabilities. Even though inclusive education can address such limitations, the application of the most appropriate pedagogical approaches for SEN learners is still a challenge. The presented study focused on critically appraising the pedagogical approaches for SEN learners in the 21st century and beyond. In order to achieve this goal, a systematic review of the literature approach was adopted. The literature search process was conducted on three databases: Education Full Text, Linguistics and Language Behavior Abstracts, and PsycINFO. The selection of these databases was influenced by their reputation of hosting high quality and up-to-date literature about special education. The initial literature search process generated 6129 hits, but only ten studies were finally selected for review after the application of inclusion and exclusion criteria. A critical review of the evidence presented in the selected studies generated eight themes describing various pedagogical approaches for special education, within both blended and mainstream learning environment. Knowledge generated in this systematic review can be used by the special education sector of the U.S to develop pedagogical approaches for SEN students, leading to improved performance and social skill development.
Aug 2021 DOI 10.14302/issn.2689-5773.jcdp-21-3890
MERAD ZakariaCorresponding author
Department of pathological anatomy and cytology, Hospital Center of Sidi Bel Abbes, Faculty of Medecine, Djilali Liabes University, 22000, ALGERIA.
Splenic hydatid cyst is very rare, caused by the parasite echinococcus granulosus. Humans are considered an accidental intermediate host in the development of the parasite cycle. It poses a diagnostic dilemma with other cystic masses despite improved medical imaging techniques often requiring exploratory surgeries for fear of missing out on a malignant tumor. Total or partial splenectomy remains the treatment of first choice and the most effective. We report a case of solitary splenic hydatid cyst and discuss the different differential diagnoses and therapeutic modalities.
May 2021 DOI 10.14302/issn.2689-4602.jes-21-3837
O. Henderson JeffreyCorresponding author
Department of Science and Mathematics, Judson University, Elgin, IL 60123, USA
The coronavirus infectious disease (20)19 (COVID-19) pandemic is caused by a newly identified virus (2019) SARS-CoV-2, a beta coronavirus that shares similarities with other human-infecting coronaviruses. Genomic analysis suggests that SARS-CoV-2 is closely related to SARS-CoV, a bat-related coronavirus, RaTG13, and to other pangolin-associated coronaviruses. The spike protein of coronaviruses are glycoproteins and are responsible for attaching the virus to the host cell and entering. Amino acid changes within the spike protein-encoding gene from SARS-CoV to SARS-CoV-2 enable SARS-CoV-2 to form a stable spike protein, to form a stable complex between the S protein and the receptor ACE2, to increase binding points between the S protein and ACE2, and to survive at higher temperatures. SARS-CoV-2 is zoonotic, with genomic analysis implicating bats as the original host and pangolins as the most likely intermediate host to infect humans. As SARS-CoV-2 infects humans, viral point mutations will continually occur and cause the emergence of new competitive SARS-CoV-2 strains. Two major strains include D614G and N501Y and have increased infectivity and transmission, further complicating the scope of the current COVID-19 pandemic. Vigilant monitoring of viral development and evolution is necessary for developing proper treatment methods and vaccine targets.
Feb 2021 DOI 10.14302/issn.2692-1537.ijcv-21-3732
Isea RaúlCorresponding author
Fundación Instituto de Estudios Avanzados, Hoyo de la Puerta, Baruta, Venezuela.
This paper resolves analytically a mathematical model that reproduces the transmission of Covid-19 in three interactive populations, i.e. from the initial source of contagion associated with the bat population, subsequently transmitted to unknown host (usually associate with pangolins). The host were sent and distributed to Seafood Market in Wuhan (defined reservoir), and finally infected to the human population. The model is based on a system of ten differential equations reproducing all the possible infection scenarios among all of them, that is: (1) there is no infection in any of the three populations, (2) only the population of bats is infected, (3) only the pangolins, (4) only the human people. Later, combinations between them, this is: (5) both the bat and pangolin populations, (6) bats and humans, (7) pangolins and humans, and finally, (8) all the previous populations. In each scenario, I deduced the critical points as well as the eigenvalues that indicate the equilibrium conditions. Finally, it is demonstrated the validity of the model with the data corresponding to the second wave of infections in Australia.
Nov 2020 DOI 10.14302/issn.2575-1212.jvhc-20-3598
Mersha Cherinnat TesfayeCorresponding author
Bako Agricultural Research Center
A cross-sectional study was conducted from November 2017 to March 2018 to determine the prevalence of ovine fasciolosis in the Community Based Horro Sheep Breeding site at Horro district, Horro Guduru Wollega zone, Ethiopia. Coprological examination was performed on a total of 390 sheep at the study area. Age, sex, body condition score and peasant association were taken into consideration as rik factors. An overall prevalence of fasciolosis 45.4% 95% CI (40.41 50.36 was found on the basis of coprological examinations. The prevalence of fasciolosis findings according to PAs were (41.5%) in Laku Ingu and (48.2%) in Gitilo Dole. Statistical analysis of the prevalence among study site (PAs) showed insignificant difference P=0.102 (P>0.05), but significant difference (P<0.05) was observed between animal age groups (P=0.032, with a prevalence of 37.2% in young and 49.8% in adult) and body condition scores (P=0.001, with a prevalence of 57.9%, 43.5% and 29.9% in sheep with poor, medium and good body condition score, respectively. There was insignificance difference (P>0.05) in sex group of study animals in which the prevalence was 47.6% in female and 38.8% in male. Therefore further studies on the epidemiology, seasonal dynamic of the disease, the snail intermediate host and impacts of the infection in animal production with implementations of strategic intervention is necessary.
Aug 2020 DOI 10.14302/issn.2692-1537.ijcv-20-3492
K. Lau KevinCorresponding author
Product Manager, Technical Advisor & Independent Researcher
Mannose binding lectins (MBL), a key molecule in our innate immune response, contributes to host defense against coronaviruses such as SARS-CoV. This article reviews the role of MBL in the innate immune response against coronavirus infections, highlights evidence of MBL’s significance, and suggests dietary MBL supplementation through increased consumption of fruits and vegetables as an accessible and viable approach to minimizing COVID-19 infection risk. Increasing consumption of plant lectins (e.g., eating fruits and vegetables) may reduce COVID-19 risks.
Jul 2020 DOI 10.14302/issn.2692-1537.ijcv-20-3453
Isea RaulCorresponding author
Fundación Instituto de Estudios Avanzados IDEA, Hoyo de la Puerta, Baruta, Venezuela
The present work analyzes the registered cases of Covid-19 throughout the world according the data registered at Johns Hopkins University. We selected 15 countries to analyze their data. In alphabetical order the countries are: Argentina, Australia, Brazil, Chile, China, Colombia, Germany, India, Italy, Mexico, Peru, Portugal, Spain, United States and Venezuela. With this information, three different studies were carried out. First, the data was validated using Benford's Law which is based on forensic techniques that allow us to guarantee the integrity of the information. Later, we calculated the value of the basic reproduction number (R0), ie., the number of secondary host infections caused by one primary host infection that helps us to determine if a country has an outbreak of Covid-19. Finally, we show that the best representation for the change in the number of cases in the time is to calculate the mantissa value, ie., the floating number obtained from the logarithm of the data.
May 2020 DOI 10.14302/issn.2692-1537.ijcv-20-3344
Reza Naghii MohammadCorresponding author
Retired Professor of Human Nutrition, Tehran, Islamic Republic of Iran
Identifying the epidemiological characteristics of COVID-19 disease will help to make appropriate decisions and thus control the epidemic. Although many details, such as the source of the virus and its ability to spread between people remain unknown, an increasing number of cases show the signs of human-to-human transmission. The purpose of this review is to introduce the reservoir hosts, and the possible role of distributions of bat coronaviruses in China, and eventually to aim to predict virus natural hotspots and their cross-species transmission potential. Why bats can maintain coronaviruses long-term without showing clinical symptoms of diseases and what is allowing bats to have a higher tolerance against viral diseases. We need to unveil the mystery of unique bat immunity. Although bats are not in close contact with humans, spillover of viruses from bats to intermediate animal hosts like civet is thought to be the most likely mode to cause human infection. It appears that the coffee beans which are a rich source of chlorogenic acid are acting as a reservoir host and causative agent, and at the same time as a defense agent to create resistance in the consumers (bats and animals). It is assumed that the intake of chlorogenic acid should be capable of protecting human from contamination or severe morbidity.
Mar 2020 DOI 10.14302/issn.2690-6759.jpar-20-3285
G. Abraham DogoCorresponding author
Department of Veterinary Parasitology and Entomology, Faculty of Veterinary Medicine, University of Jos, Jos - Nigeria
The incidence of gastrointestinal parasites in Zebu and N’dama breeds known to be trypanotolerant cattle from some ranches in Jos Plateau was investigated at the peak of the raining season, August to October, 2018. A total of 150 cattle from some Ranches in Jos Plateau were randomly selected for faecal sampling out of which 85 were Zebu (Bos indicus) and 65 were N’dama (Bos taurus) breeds respectively. The samples were analyzed for ova of gastrointestinal parasites using the simple flotation and sedimentation techniques and the results were interesting. The strongyloids, Oesophagostomumradiatum had the highest incidence of 4.7% followed by the Trichostrongylus species with 4%. Fasciolagigantica and Haemonchusplacei both were 3.3%. Then Paramphistomumcervi 2%; bovine hook worm, Bunostomumphlebotomum 1.3%, Taenia saginata1.3%, Schistosoma bovis 1.3% and Nematodirusspathiger 0.7%. The incidence of nematodes, cestodes and trematodes in this study in the raining season was significant (p<0.05) and could pose production and economic threat to institutional farms and ranches in the development of livestock and dairy industries in Nigeria. There should be a strong policy on the control of gastrointestinal parasites in the country for farmers to benefit from their contribution in ensuring food security.
Feb 2020 DOI 10.14302/issn.2690-6759.jpar-20-3184
M.A. Khalifa RefaatCorresponding author
Parasitology Departement, Faculty of Medicine, Assiut University, Egypt
Domestic pigeons (Columba liviadomestica) of the order Columbiformes are ubiquitous birds and can be found in virtually every town and city around the globe. Their interaction with humans and domestic animals and wild birds makes them a potential carrier of zoonotic parasites. The present study aimed to detect the prevalence of different zoonotic protozoans that affect different-aged domestic pigeons in different localities in Assiut Governorate, Egypt. A total of 50 fecal samples from 20 young and 30 adult pigeons were collected and examined for identification and estimation of prevalence of Cryptosporidium sp. and Microsporidium sp. using modified Kinyoun acid-fast stain. For detection of the prevalence of Toxoplasma gondii, serum samples from 50 pigeons were examined serologically for the presence of Toxoplasma antibodies by using Latex Agglutination test. The prevalence of Cryptosporidium sp. infection was 20%; 6.7% in adult pigeons and 40 % in young pigeons while that of Microsporidium sp. was 40% both in adult and young pigeons. Mixed infection was detected in only two young pigeons (10%). Regarding Toxoplasma gondii detection, the number of seropositive cases detected by LAT was 29 out of 50 (58%). The positive agglutination titers, among 14 (48.27%) seropositive pigeons ranged between 1:2 -1:128. It was concluded that domestic pigeons may be considered as a reservoir host for Cryptosporidium, Microsporidium, and Toxoplasmagondii human infection which represents a serious human public health problem especially for high risk groups of population living in the same dwellings with pigeons. Moreover, the present pilot results provide a baseline data for planning future researches and control strategies against domestic pigeon's parasites.
Feb 2020 DOI 10.14302/issn.2381-862X.jwrh-19-3143
Vishwanath Prasad PramodCorresponding author
Center for Biomedical Research, Population Council, The Rockefeller University, 1230 York Avenue, New York, NY 10065, USA
Emergence of various nanoscale drug carrier platforms as Drug Delivery Systems (DDS) has revolutionized the field of medicine.Nonetheless, theside-effects due to non-specific distribution of anticancer therapeutics in normal, healthy tissues remain to be a prime pitfall in curing cancers. Therefore, to achieve a better therapeutic efficacy, the use of a target-specific delivery, combined with a stimuli-responsive nanocarrier system, particularly pH-sensitive nanosystems offer an attractive strategy. Targeted drug delivery through pH-sensitive nanosystems offer the potential to enhance the therapeutic index of anticancer agents, either by increasing the drug concentration in tumor cells and/or by decreasing the exposure in normal host tissues. Therefore, nanoscale-based drug delivery through pH-sensitive nanosystems seem to be a boon for treating gynaecological cancers (as well as other cancers) without side-effects or with least harm to normal healthy tissues.
Nov 2019 DOI 10.14302/issn.2324-7339.jcrhap-19-3070
Sharma BechanCorresponding author
Department of Biochemistry, Faculty of Science, University of Allahabad, Allahabad-211002, UP, India.
The telomeres existing at the end of the eukaryotic chromosome, play an important role in localization, pairing of homologous chromosomes during cell division and synapsis formation, while telomerase is involved in maintenance of the telomere length. The application of antiHIV-1 molecules particularly NRTIs have been shown to interfere with telomerase function thereby inducing aging processes. Since the application of these molecules has already indicated production of oxidative stress and toxicity in AIDS patients, their adverse impact on telomerase function may further worsen the situation. In addition, the negative influence of antiHIV-1 regimens on certain host factors involved in telomerase function may enhance aging. HAART changes the landscape of the disease by progressively decreasing the progression of HIV-1, but exerts prolonged adverse effects on the telomerase function. Though there is no exact information available on this issue, intensive efforts are needed to explore regulation of telomerase expression in HIV infected individuals and particularly those receiving antiretrovirals.
Jul 2019 DOI 10.14302/issn.2997-2108.jcc-19-2889
Adetona A.ECorresponding author
College of Medicine, University of Ibadan / University College Hospital, Ibadan. Nigeria
Background This study aim to assess the factors affecting uptake of cervical cancer screening programmes among female staff of the University College Hospital (UCH), Ibadan in 2014. Method A descriptive cross-sectional study involving 375 participants selected using a stratified random sampling technique with proportional allocation to population size and interviewed using a pre-tested self-administered semi-structured questionnaire. Information on their basic knowledge on cervical cancer were scored to determine good knowledge. Patients’ attitudes toward cervical cancer screening as well as factors affecting uptake were also assessed. Data analysis was done in 2014 using descriptive statistics while screening uptake predictors were determined using logistic regression at p ≤0.05. Results Completed questionnaires were returned by 360 respondents; 13.3% were clinical while 86.7% were non-clinical staff of age range 20 to 58 years (38.2±0.42 years). Majority of the respondents, (95.5%), had heard about cervical cancer with 61.9% having “good knowledge”, but only few (34.2%) had been screened. Averagely, 47.5% displayed positive attitude to cervical cancer screening with Pap smear being the most reported screening procedure. The common barriers to screening uptaking include indecision, inadequate information and feeling of good health. Others were staff hostility, lack of privacy, and cost. Using logistic Regression at p ≤0.05, females with negative attitude and those with children were less likely to uptake cervical cancer screening services. Conclusion The knowledge-uptake gaps of cervical cancer screenings were high as revealed in this study. Therefore, there is a need to further educate eligible women on uptake of cervical cancer screening.
Jun 2019 DOI 10.14302/issn.2639-3166.jar-19-2858
Haroun Mohamed Adam AbubakerCorresponding author
Department of Crop Science, College of Agriculture, University of Bahri.
The objective of this study was to evaluate the effectiveness of endophagous Encyrtid parasitic wasp Aenasiusarizonensis (Girault) (Hymenoptera, Chalcidoidea), as a natural enemy for controlling the Mealybug, Phenacoccussolenopsis Tinsley (Hemiptera: Pseudococcidae). Where a Randomized Complete Block Design (RCBD) was adopted. Both, field survey and Laboratory experiments were conducted to study some biological characteristics of the parasitoid A. arizonensis. The results of field study revealed that, the parasitioid was available most of the year, and was highly effective on adults and last larval instar of the mealy bug, P. Solenopsis, with a total percentage of parasitism of 31.26%. While the laboratory results showed that, the duration from oviposition to adult emergence were similar for both male and female. Longevity of male was 23± 2.33 days and female 23.37±1.89 days. Mean daily fecundity in terms of number of Parasitized hosts /female / day ranged from 20 to 24. The sex ratio was 1:1.6 for the male and female in the progeny. Generally, a mass rearing of this parasitoid, with a conservation and augmentation releases could help in the application of an effective management strategy for the control of the cotton mealy bug in the field.
May 2019 DOI 10.14302/issn.2639-3166.jar-19-2780
Masoero GiorgioCorresponding author
Accademia di Agricoltura di Torino, Italy
The inoculation of soil with a bio-fertilizer (BF), with arbuscular mycorrhiza fungi, characterizes a Symbiotic (S) agriculture mode, aimed at promoting the yield and health of crops through modifications in the rhizosphere as well as in the plant phenotype. The main objective of this study was to reduce the incidence of Olive Quick Decline Syndrome (OQDS, involving Xylella fastidiosasubsp.pauca) that afflicts the olive groves in Apulia (Italy). Non-inoculated control (C) plants were compared with Symbiotic (S) plants inoculated with 20 kg ha-1 of Micosat F ®, through a 15 cm deep scarification, in the groves of seven farms covering an area of 27 ha. In addition to a visual observation of 484 plants, to obtain a gradation of the disease severity, some objective rapid type methods were utilized to survey the plants and soil , namely leaf pH, NIR tomoscopy of the leaves, hay-litter-bag probes coupled with NIR spectroscopy and the prediction of soil induced respiration. The fingerprinting of the S and C types of leaves and litter-bags was ascertained by means of the use of a random forest algorithm in the classification matrices. The results on the symptoms appeared variable: they were significantly mitigated in two groves out of six, but they were aggravated in one. All the rapid measurements became essentials in a “holistic” model which was able to explain over 95% of the average mitigation / null / aggravation response to BF inoculation. The holistic model gathers differential and compositional analyses of the leaf (pH, crude protein, water) and of the soil (respiration), but depends mainly on the fingerprinting of the C and S leaves and litter-bags. Two keys were identified for a successful inoculation: a high degree of variability of the soil conditions permitting hospitality for the BF with enhancement of the microbial activity in the S soil (lowering the fingerprint of the control litter-bags) and homogeneity of the leaves (with increases in the fingerprint of the S leaves treated with BF). In short, the inoculation of diseased plants with one BF consortium is far from being the ultimate remedy to mitigate OQDS in all situations. Further studies are needed, at a field level, to clarify the soil hosting capacity and to define the mycorrhizal and / or endophytic * plant * pathogen interactions, even using rapid methods.
Mar 2019 DOI 10.14302/issn.2642-9241.jrd-19-2667
Klepikov I.Corresponding author
Professor Renton, Washington, USA
A perspective argues that biological rules and host–pathogen dynamics deserve greater attention in pneumonia care. It integrates pathophysiology with clinical decision‑making.
Jan 2019 DOI 10.14302/issn.2690-6759.jpar-18-2510
MA Khalifa RefaatCorresponding author
Medical Parasitology Department, Faculty of Medicine, Assiut University
Bancroftian filariasis (BF) is a debilitating disease that has plagued Egypt since the time of the pharaohs. Egypt is the first large endemic country in the world to reach the five-year mark in its national campaign. Now that the mass treatments are completed, a follow-up epidemiological assessment will reveal whether this large-scale, pioneering campaign has been successful in finally eliminating the disease. Hence the aim of the present work was to detect the prevalence of bancoftian filariasis in Tema, El-Maragha, Akhmeem and Girga districts in Sohag Governorate, Upper Egypt. Finger prick thick blood films were randomly collected from 500 clinically suspected individuals representing different sexes and ages suffering from lower limb non-pitting edema and/or inguinal lymphadenitis from May 2015 to February 2017. Three patients (0.6%) were infected with microfilariae of Wuchereria bancrofti while one chronic case was detected with severe chronic elephantiasis that was amicrofilaraemic but was confirmed serologically. Results were discussed in regards of age, gender, occupation, locality and residence. It was concluded that bancroftian filariasis is still endemic in three districts (Tema, El- maragha and Girga). Although in sporadic few cases, the problem should be taken seriously as one microfilaramic patient could be a patent reservoir for spreading of the disease through infecting the prevailing Culex pipiense mosquito intermediate host.
Jan 2019 DOI 10.14302/issn.2470-5020.jnrt-18-2555
Ya. Abdullaiev RizvanCorresponding author
Kharkiv Medical Academy of Postgraduate Education, Department of Ultrasound Diagnostics, Ukraine
Introduction: Tension-type headache (TTH) is very common, with a lifetime prevalence in the general population ranging in different studies between 30% and 78%. TTH, divided into episodic and chronic types, introduced in the manual "International Classification of Headache Disorders"(ICHD-I), is of practical importance. Infrequent episodic headaches (no more than once a month) may not require drug therapy, but, on the contrary, frequent forms may require expensive treatment. Objective: To study the state of cerebral hemodynamics and cerebrovascular reactivity in patients with Tension-type headache and evaluate the efficacy of treatment with Phenibite using Doppler ultrasound. Materials and Methods: A retrospective analysis of the results of ultrasound dopplerography of the anterior, middle and posterior cerebral arteries (ACA, MCA and PCA), Vertebral and Basal (VA, BA) arteries was performed in 188 patients with TTH. Among them are infrequent episodic TTH - 68 (36,2%) patients, frequent episodic TTH - 64 (34,0%) patients, chronic TTH - 56 (29,8%) patients. The age of the subjects was 18-45 years, among them 85 (45.2%) men and 103 (54.8%) women. The maximum systolic velocity (Vs), the end diastolic velocity (Vd), the resistance and pulsativity indexes (RI, PI) in all vessels were determined. Patients were given consent to participate in the study. Results: Infrequent episodic (IFE) TTH were recorded in 86.4% of cases, frequent episodic (FE) — in 88.9%, and chronic (Ch) TTH — in 81.6% of cases. Bilateral TTH was noted in 39.2%, frontal localization - in 35.6%, in the occipital region - in 25–7% of cases. The asymmetry of the maximum systolic blood flow velocity (Vs) in the paired arteries within 20-30% was considered a violation of cerebral hemodynamics, which was detected in 38.7% of patients. An increase in Vs was noted in all cerebral vessels, especially in patients with FE TTH and chronic Ch TTH compared with the control group. In patients with IFE TTH the average value of RcFMt was 1.24±0.03, in patients with FE TTH - 1.25±0.02, in patients with Ch TTH - 1.27±0.03. In patients with TTH, hyper-responsiveness to hypercapnic test was detected: RcCO2 was 1.43±0.05 in the group with FE TTH; 1.39±0.07 in the group of Ch TTH and 1.37±0.04 in the group of IFE TTH, which indicates a tendency for the tension of the vasodilator regulation mechanism even in clinically insignificant forms of TTH. In the study of reactivity to the O2-test, a hyporeactive response was observed in the groups with FE TTH and Ch TTH (0.38±0.04 and 0.35±0.05, respectively. The treatment with Phenibut carried out in a step-by-step manner - during the first week the drug was applied at a dose of 250 mg 2 times a day, over the next 6 weeks the dose increased to 500 mg 2 times a day, then the dose was reduced back to 250 mg 2 times a day. Among patients with FE TTH, the frequency of headache decreased from 5.7±2.3 to 3.6±2.1 days/month, and in patients with Ch TTH - from 22.8±1.7 to 17.7±1,3 days/month (P<0,05). Influence of the drug was manifested at the initially increased RcFMt and RcCO2. A decrease in initially elevated RcCO2 was noted in all (FE TTH, ChTTH, IFETTH) clinical groups. However, this decrease was not statistically significant. Conclusion: In patients with TTH, an increase in the Vs is more often recorded, their asymmetry in the middle cerebral artery. Hyperreactivity on CO2-load is typical for patients with chronic TTH, and reflects the mobilization of metabolic regulation of cerebral blood flow. Conducting FMt was the most informative method for detecting autoregulatory disorders mainly in patients with IFE TTH. FE TTH in patients is characterized by the presence of a hyperactive reaction to hypercapnic and orthostatic tests, probably due to mobilization of humoral-metabolic and neurogenic links of regulation. In the group of patients with chronic TTH prevails hyporeactivity for hyperventilation test, reflecting the depletion of vasoconstriction reserve. The use of Phenibut(Noophen® (JSC Olainfarm Latvia in the treatment of TTH is accompanied by a decrease in the frequency of pain, and of pericranial muscle tone, most pronounced in patients with FE TTH. It's effectiveness is evident in the normalization of the coefficients of cerebrovascular reactivity in a patients with chronic TTH. The minimal statistical significance was observed on the dynamics of blood flow only in the VA.
Nov 2018 DOI 10.14302/issn.2766-869X.jfd-18-2276
Cheikhrouhou FatmaCorresponding author
Mycology and parasitology Laboratory- Habib Bourguiba hospital 3029 Sfax -Tunisia.
We report a case of a young woman with acquired immune deficiency syndrome admitted with fever and abdominal pain. Saccharomyces kluyveri was isolated in blood culture. She was successfully treated with fluconazole. This case demonstrates the pathogenicity of Saccharomyces Kluyveri in immunocompromised host.
Jun 2018
Ladislav Valach,Corresponding author
Lindenstrasse 26,3047 Bremgarten, Switzerland.
Objectives: Torture survivors suffer psychosocial distress such as posttraumatic stress disorder (PTSD) and depression. Patients with PTSD and depression have increased risk for suicidal behavior. The aim of this study is to identify those torture and war survivors who have suicidal thoughts and describe their psychological profile as assessed in SCL-90-R. The patients of the Swiss Red Cross Centre for Torture Victims receiving psychotherapy were monitored with the SCL-90-R (N=58). Results: Out of 56 patients 32 (57%) declared that they did not suffer under the thought to end their own life (0=not at all), 10 (18%) indicated that they suffered substantially (scale value 3) or extremely (4) while 14 (25%) suffered somehow (1, 2). The endorsement of the suicide ideation correlates highly with all SCL-90-R scales, particularly with the scale Depression and PTSD indicating that the patients with suicide ideation also show considerable psychopathology. The scale Depression explained 40% of the variance of the suicide thoughts item and the scale Anger-hostility added another 5%. Conclusion: Suicide prevention should be an important part of the treatment and care in dealing with war and torture survivors.
May 2018 DOI 10.14302/issn.2473-1005.jdoi-18-2076
Dilsiz AlparslanCorresponding author
Professor, Department of Periodontology, Faculty of Dentistry, Atatürk University, Erzurum/ TURKEY.
This review examines the adjunctive use of ozone therapy for periodontal disease. It summarizes proposed antimicrobial and host‑modulating effects, delivery methods, and safety considerations, and calls for standardized trials to define clinical benefit.
Jan 2018 DOI 10.14302/issn.2575-1212.jvhc-17-1817
Elizabeth Márquez Contreras MaríaCorresponding author
Laboratorio de Enzimología de Parásitos (LEP), Facultad de Ciencias, Universidad de Los Andes, Mérida,Venezuela
Chagas disease is zoonotic illness or an anthropozoonosis caused by flagellated protozoan parasite Trypanosoma cruzi. This infection presents alarming rates of incidence/prevalence, for this reason, is recognized worldwide as one of the 13 most neglected tropical diseases 1. Numerous studies have demonstrated the existence of domestic dogs infected with T. cruzi across endemic areas ranging from southern United States of America to Argentina 2. The reported prevalence varies widely (1.42-92%), depending on ecoepidemiological and sociocultural factors 3. It is important to emphasize that the natural infection in dogs with T. cruzi occurs in the same way as in humans, that is to say, through active transmission by vectors, contamination by feces infected with the parasite through wounds or the conjunctiva, can also occur by ingestion of infected vectors or tissues of wild animals present in the peridomicile or home 4. The transplacental transmission is also an important mode of transmission in dogs 5. Nevertheless, the main mode of transmission in canine species seems to be the ingestion of infected vectors 6. During the life cycle of T. cruzi the trypomastigotes present in the heces of the triatomines are introduced in the mammalian host by contamination of the insect bite or mucosal membranes. The metacyclic form can penetrate a variety of phagocytic and nonphagocytic nucleated cells. Once inside the cells the parasite becomes in amastigote, which are multiplicative forms that divide into cells. Due to the high parasitic load they produce the lysis of the cells and escapes into the cytoplasm. The amastigotes transform to slender trypomastigotes which can invade adjacent cells, this forms can be ingested by triatomines and they transform into epimastigotes Finally, after migration to the bug's hindgut, the epimastigotes differentiate into infectious metacyclic trypomastigotes, in this way the life cycle of this microorganism is completed 7.
Aug 2017 DOI 10.14302/issn.2690-4721.ijcm-17-1676
W. Taylor-Robinson AndrewCorresponding author
School of Health, Medical & Applied Sciences, Central Queensland University, Brisbane, QLD 4000, Australia
Malaria is a mosquito-transmitted infectious disease caused by intracellular protozoan parasites of the genus Plasmodium. In the absence of prompt and appropriate treatment contraction of primary infection by a human being often represents a medical emergency since it may progress rapidly to life-threatening complications. Exposure to parasites activates the immune system resulting in, among other effects, the release of reactive oxygen intermediates (ROI). This has the potential to induce oxidative damage, thereby causing cellular destruction, and hence to have a severe effect on vital organs of the body. Overexpression of ROI leads to immunosuppression and is a causal factor in the development of malaria-related disease symptoms. However, the body possesses various defence mechanisms, notably including the production of antioxidants, which are capable of reducing the cellular effects of ROI. Antioxidants are either sourced exogenously from the diet or synthesized through different intracellular mechanisms. Antioxidants that include glutathione peroxidase, catalase, EDTA and vitamin C suppress the initial production of ROI. Others such as uric acid, superoxide dismutase and vitamin E may also inhibit potentially damaging products of ROI metabolism. Current anti-malarial drugs often have damaging side-effects, as exemplified by memory impairment following treatment for cerebral malaria. Recent studies have explored the potential use of antioxidants alone or in combination with anti-malarials as a therapeutic means to negate Plasmodium-induced oxidative stress and its associated metabolic complications. It is indicated that when utilized in an adjuvant capacity antioxidants of natural and synthetic origin may improve anti-malarial therapy by causing less damage to the host during malaria infection.
Mar 2017
Remberger MatsCorresponding author
Centre for Allogeneic Stem Cell Transplantation, Karolinska University Hospital,
This article examines how HLA‑DRB1 allele mismatching influences outcomes after hematopoietic stem cell transplantation. It reviews graft‑versus‑host disease risk, engraftment, and survival metrics in the context of donor matching strategies. The findings support careful allele‑level typing to optimize donor selection and improve post‑transplant prognosis.
Oct 2016 DOI 10.14302/issn.2574-450X.JOM-16-1009
Sadia Fatima SyedaCorresponding author
Department of Biological and Biomedical Sciences, Aga Khan University
Apart from the physical health implications obesity partakes on an individual; it also takes its toll on mental and psychological wellbeing of a person. A vicious cycle starts with hostility based on ‘obesity stigma’, eventually leading the person being stuck in a positive feedback loop. Every attempt to correct his or her obesity problem results in severe detrimental health effects. It is necessary that appropriate awareness programs and legislations are drafted and implemented to strike out the root causes of obesity stigma.
Jun 2016 DOI 10.14302/issn.2574-4526.jddd-16-1077
Yu Wen-LiangCorresponding author
Department of Intensive Care Medicine, Chi Mei Medical Center, Tainan, Taiwan
Two cases of CMV esophagitis presenting with distinct clinical and endoscopic features are presented. Diagnostic clues, histopathology, and antiviral therapy considerations are highlighted, emphasizing vigilance in immunocompromised hosts.
Jan 2016 DOI 10.14302/issn.2324-7339.jcrhap-13-180
Okumdi Muoghalu CarolineCorresponding author
Department of Sociology and Anthropology, Obafemi Awolowo University, Ile-Ife.
Perception of Human Immunodeficiency Virus has been topical due to its central place in determining attitudes and care for people living with HIV/AIDS and having implications for the containment of the epidemic. People living with HIV/AIDS face social stigmatization due partly to misconception in the perception of the disease and people living with it and students are not left out in this stigmatization and discrimination. This study aimed at exploring the perception of HIV/AIDS by the students of Obafemi Awolowo University. The study utilized quantitative methodology –questionnaires to elicit information from 160 students on their perception of the disease. The sampling technique was quota sampling technique in which 40 students were randomly selected from each hostel out of the 4 selected hostels. The findings were that majority of the respondents view the disease and people living with it negatively (53.9) and dangerous (30.9) and 66.4 percent of the respondents did not see themselves being vualnerable to contracting the virus. The result further showed a significant association between knowledge and perception of the disease. It was also revealed that there was no significant relationship between perception of the disease and socio-economic status of students. This negative perception has serious implications for students living with HIV/AIDS in the University. In conclusion, the negative students’ perception of the disease and people living with it has serious implications for the containment of the epidemic in that people living with HIV/AIDS would hide their sero-positive status to avoid stigma and would in turn infect others. There is therefore need for intervention to change student perception to positive in the university.
Jul 2013 DOI 10.14302/issn.2326-0793.jpgr-13-207
Floros JoannaCorresponding author
Center for Host defense, Inflammation, and Lung Disease (CHILD) Research and Departments of Pediatrics
Surfactant protein A (SP-A) plays a number of roles in lung host defense and innate immunity. There are two human genes, SFTPA1 and SFTPA2, and evidence indicates that the function of SP-A1 and SP-A2 proteins differ in several respects. To investigate the impact of SP-A1 and SP-A2 on the alveolar macrophage (AM) phenotype, we generated humanized transgenic (hTG) mice on the SP-A knockout (KO) background, each expressing human SP-A1 or SP-A2. Using two-dimensional difference gel electrophoresis (2D-DIGE) we studied the AM cellular proteome. We compared mouse lines expressing high levels of SP-A1, high levels of SP-A2, low levels of SP-A1, and low levels of SP-A2, with wild type (WT) and SP-A KO mice. AM from mice expressing high levels of SP-A2 were the most similar to WT mice, particularly for proteins related to actin and the cytoskeleton, as well as proteins regulated by Nrf2. The expression patterns from mouse lines expressing higher levels of the transgenes were almost the inverse of one another – the most highly expressed proteins in SP-A2 exhibited the lowest levels in the SP-A1 mice and vice versa. The mouse lines where each expressed low levels of SP-A1 or SP-A2 transgene had very similar protein expression patterns suggesting that responses to low levels of SP-A are independent of SP-A genotype, whereas the responses to higher amounts of SP-A are genotype-dependent. Together these observations indicate that in vivo exposure to SP-A1 or SP-A2 differentially affects the proteomic expression of AMs, with SP-A2 being more similar to WT.
Dec 2012 DOI 10.14302/issn.2324-7339.jcrhap-12-edt.1.1
Marchand ChristopheCorresponding author
Laboratory of Molecular Pharmacology, Center for Cancer Research, National Cancer Institute, NIH, Bethesda
This editorial discusses combination strategies that concurrently target viral replication and host factors in HIV therapy. It surveys candidate mechanisms, potential benefits, and safety considerations, advocating rigorous trials to balance efficacy with tolerability in diverse patient populations.