Biography
Ahmed A. Mohammed has completed his M.Sc. in Immunoparasitology at the age of 25 years from the University of Baghdad college of Science and now doing his Ph.D. in the the University of Salford School of Environment and Life Sciences-Biomedical Research Centre. He has been working as a formal staff member (Assistant Professor) in the branch of Clinical laboratory Sciences in the College of Pharmacy Al-Mustansiriyah University in Iraq and now has a scholarship to get the PhD degree in Immunoparasitology. He got a patent in 2002 and has 11 published papers in local Iraqi reputed journals. He authored two curricular books and one practical guide booklet in Medical Parasitology for his students of pharmacy. He served as a referee in three valued journals one in Iraq and two international journals.
Abstract
Cystic Echinococcosis is characterised by the presence of slow growing hydatid cysts, usually in the liver or lungs. Survival of the parasite is based on an interaction of the host immune system and a range of parasite immune-evasive strategies. Fibrosis in the tissues surrounding the cysts can be seen as a host protective response isolating the parasite and restricting its growth or, from another perspective fibrosis may be protective for the parasite by providing a barrier to more effective immunological responses. In this study the adenocarcinomic human alveolar basal epithelial cell line (A549) was used as model system. This cell line can be involved in fibrosis as cells can transform into mesenchymal cells and differentiate later to fibroblasts and/or myofibroblasts which can ultimately secrete collagen. Cells were initially cultured in vitro in RPMI-1640 medium containing 1-10% hydatid cyst fluid (HCF).The possible effect of the parasite extracts on cell migration was investigated using a wound healing assay. The ability of HCF components to modify cell surface markers of mesenchymal transition was also investigated by fluorescence microscopy. Results showed that there was a dose-dependent increase in cell growth in the presence of cyst fluid after 5 days of culture. The migratory response of cells was also enhanced by the presence of HCF. Both the enhanced growth and migratory activity were still evident when the HCF had been boiled indicating that the components responsible were thermostable. Semipurified extracts of a major HCF component, Antigen B showed a similar high stimulatory effect similar to that of HCF. The fluorescence microscopy showed a significant expression in the fibronectin and E-Cadherin cell markers in cells treated with HCF. These results indicate that components within HCF have a stimulatory effect in the possible enhancement of fibrosis.
Biography
Patrick Tayag Janapin is an undergraduate student of Medical Technology at Holy Angel University, Philippines. He has a great interest in medical parasitology. He strongly advocates for the practice of proper hygiene and sanitation by volunteering to different community outreach projects especially to the members of different ethnic groups such as the Badjaos.
Abstract
Documented reports on the health and sanitation status of Badjao are very limited to date. In view of their cultural practices, Badjaos are considered to be at high risk of acquiring the parasitic triad infections. This study focused on the determination of the prevalence of parasitic triad infection and the establishment of possible associations of each to the demographic profile of the respondents. 100 badjao individuals were chosen as the population of the study. After stool testing which includes Direct Fecal Smear (DFS) and Formalin-Ethyl acetate Concentration Technique (FECT), 100% prevalence was noted on the determination of Ascaris lumbricoides and Trichuris trichuria infections. Discrepancy of +4 Hookworm isolates was noted during the isolation of parasite using FECT. This study was able to establish association between the manner of excreta disposal and the presence of Hookworm infection. Other associations were not obtained because of the constant response of the research population. Immediate deworming project was organized by the researchers and the local government units in response to the significant results of the study.