Copro-antigen versus classical microscopy as diagnostic tool for giardia lamblia infection in Egyptian patients

Background: Giardia lamblia, a flagellate protozoa, is a one of the most common causes of non-viral [parasitic] diarrheal illness in humans. Laboratory diagnosis mainly consists of direct microscopic examination of stool specimen for trophozoites and cysts. However, due to intermittent fecal excretion of the parasite, the patient may be misdiagnosed, continue excreting the parasite and infecting others. Therefore, other methods of diagnosis should be looked for, which overcome the drawbacks of microscopy when used alone for diagnosis. The present study aimed to evaluate the efficacy of copro-antigen detection by ELISA test in comparison to direct microscopy in the diagnosis of G. lamblia in stool specimens from patients with diarrhea and other gastrointestinal symptoms

Patients and methods: stool samples were collected form 250 child included in the present study [150 symptomatic and 100 apparently healthy as a control group] aged between 1-10 years old, and subjected for direct microscopic examination and ELISA test for copro-antigen detection

Results: out of 250 stool samples, 53 specimens [21.2%] were positive for Giardia by direct microscopy, while 68 specimens [27.2%] were positive by ELISA test

Conclusion: ELISA test for copro-antigen detection in stool samples is a rapid and effective method with high sensitivity and specificity for diagnosis of giardiasis in stool specimens even when the parasitic count is low, thus reducing the chances of missing even in the asymptomatic cases

Clinical, parasitological and social studies on Wuchereria bancrofti in Egypt

This study was conducted on patients attending AlHussein 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 controls [17 males and 16 females] and subjected to clinical and parasitological examinations. According to residence, five patients were from Giza Governorate [18.18%], four from Dakahlia G. [12.12%], four from Gharbia G. [12.12%], five from Menoufia G. [15.15%], four from Sharkia G. [12.12%], two cases from Kafr Elsheikh G. [6.06%] and one patient from Assiut G. [3.03%]. In controls, 6 were from Al Hussein Cairo G. [15.15%], and two cases [6.06] from Al Abbassia. They were 48% farmers [10 male and 2 female]; 4% grocers [1 male]; 8% carpenters [2 male]; and 40% house wife [10 female]. According to lymphedema site: 3 cases [12%] were bilateral lower limbs lymphedema [2 female and 1 male], 13 cases [52%] had right lower limb lymphedema [6 female and 7 male], and 9 cases [36%] had left lower limb lymphedema [4 female and 5 male]. They were 18 [72%] with below knee extension of lymphedema [10 male and 8 female] and 7 [28%] above knee extension of lymphedema [3 male and 4 female]. Grade of lymphedema was one case [male] with grade II lymphedema [4%], 13 cases [52%] with grade III [7 male and 6 female] and 11 cases [44%] with grade IV [5 male and 6 female]. Duration of lymphedema was one case with grade II lymphedema in a period of 3 years, 13 cases with grade III lymphedema and the durations of lymphedema for these cases were [one case with 5 years duration, 3 cases were>6-9 years, 6 cases were>9-12 years and 3 cases were>12 years] and 11 cases with grade IV lymphedema and duration of lymphedema for these cases were [one case with 6 years duration, 2 cases were>6-9 years, 3 cases were>9-12 years and 5 cases were>12 years]

Flowcytometric analysis of T-lymphocytes and serum tumour necrosis factor alpha [TNF- alpha] levels in schistosoma mansoni patients

Analysis of T-lymphocytes by flowcytometry, estimation of serum TNF-alpha 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% and 90% respectively. Chronic schistosomiasis mansoni patients showed increase in CD8% [27.3 +/- 5.3] and decrease in CD4% [44.2 +/- 4.68]. Hepatosplenomegaly cases showed increase in CD4% [46.5 +/- 4.1] and decrease in CD8% [23.2 +/- 2.18]. Serum level of TNF-alpha was significantly higher in cases with hepatosplenomegaly compared to either cases of chronic schistosomiasis mansoni or controls. No significant difference was between chronic schistosomiasis mansoni patients and controls. A correlation between hepatosplenomegaly and increase of CD4 and/or decrease of CD8 and significant high level of TNF-alpha indicated TNF-alpha role in granuloma formation

Tumour necrosis factor alpha [TNF-Alpha] levels in toxoplasma gondii infected cases with or without repeated abortions

The aim of this study was to evaluate the tumor necrosis factor alpha [TNF-alpha] as one of cytokines produced in chronic toxoplasmosis in seropositive cases with anti-toxoplasma specific antibodies who have repeated abortions and in cases with normal delivery outcomes, compared to sero negative cases. TNF-alpha was found to be higher in seropositive cases with repeated abortion than in scronegative cases with repeated abortions and seronegative cases with normal delivery outcome