Samir Abd Al-Razek Shahat

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The commonest opportunistic parasites causing morbidity and/or mortality in the immuno-compromised subjects are mainly the gastro-intestinal ones. This study clarified the prevalence of the opportunistic parasites among a group of immunocompromised patients selected from Al Azhar University Hospitals. One hundred immunocompromised patients (GI) were divided(More)
This study was conducted on patients attending Al-Hussein University Hospital and Mansura University Hospitals. Sheets were filled out on each patient (age, residence, occupation, family similar condition, travelling, disease duration, symptoms suggesting acute dermatolymphangitis attacks, frequency and duration. They were 25 lymphoedema patients and 8(More)
To determine the effect of S. mansoni and aflatoxin B1, 120 hamsters were divided into six groups of 20 each as follows: group I, S. mansoni only, group II, aflatoxin B1 only, group III, S. mansoni then aflatoxin B1 eight week, group IV, aflatoxin B1 then infected with S. mansoni six weeks, later, group V, aflatoxin B1 and S. mansoni simultaneously, group(More)
A new PCR based system was used that had broad detection capability among parasites based on a conserved region of the 18 S ribosomal DNA gene. Five samples each of European and Egyptian Fasciola hepatica of bovine origin were obtained and DNA was isolated. The target of the PCR primers was a fragment of approximately 600 nucleotides in length corresponding(More)
Analysis of T-lymphocytes by flowcytometry, estimation of serum TNFa level by solid phase enzyme amplified sensitivity immunoassay (EASIA) and IHAT were done for chronic schistosomiasis mansoni patients without hepatic fibrosis, with hepatosplenomegaly and 20 healthy controls. The sensitivity and specificity of IHAT in schistosomiasis mansoni were 85% & 90%(More)
It can be safely said that up till now, no method of vaccination (including recent genes encoding vaccines) has yet proved to be totally effective since they gave partial and low levels of protection against S. mansoni infection. The objective of this work is to try testing the immunogenic effect of two purified non infected B. alexandrina hepatopancreas(More)
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