Biomedical subjects

N Fawaz

Publications and source records attributed to N Fawaz.

3 recordsLinked to original sources

PubMed1999

HCV-RNA and anti-HCV IgM in Egyptian subjects bearing IgG anti-HCV antibodies.

The hepatitis C virus (HCV) infection is associated with a wide spectrum of clinical entities ranging from asymptomatic carriage to severe forms of chronic hepatitis. In Egypt, HCV infection has been shown to be highly prevalent. The aim of this study was to determine the frequency and significance of anti-HCV IgM in the sera of clinically healthy blood donors and chronic HCV patients, whose sera were also positive for anti-HCV IgG. Anti-HCV IgM was detected in the sera of 7 (46%) of the blood donors (n = 15), of whom 5 (71%) had a positive HCV-RNA. The corresponding results in patients with a chronic hepatitis C (CHC) infection (n = 19) were 8 (42%) and 5 (62%) respectively. The detection of anti-HCV IgM did not correlate with a positive test for HCV-RNA (R = 0.2) in the CHC patients. However, the levels of anti-HCV IgM in CHC patients were associated significantly with the level of serum transaminase, a finding that can be used in monitoring disease activity in such a group of patients. On the other hand, a significant association was evident between the detection of anti-HCV IgM and HCV-RNA in the sera of blood donors. Thus among the blood donors, viraemia correlates well with the detection of HCV-IgM Ab, but it cannot be excluded in its absence. The presence of HCV-IgM in some patients with CHC infection indicates that the antibody as a viral marker may not be unique to acute HCV infection.

Adult↗

PubMed1995

High prevalence of hepatitis C virus among urban and rural population groups in Egypt.

Hepatitis C is a major health problem for Egypt. The aim of this study was to determine the seroprevalence of antibodies to hepatitis C virus among different population groups living in urban and in two different rural areas (Suez Canal and North Sinai) of Egypt. Secondary objectives were to study the possible association between multiple blood transfusions, haemodialysis or Schistosomiasis and the seroprevalence of antibodies to hepatitis C. A seroprevalence of hepatitis C virus in the urban blood donor population of 14.5% was found, confirming other reports. In the two rural areas of the Suez Canal and the North Sinai the seroprevalence was 14.4% and 15.5% respectively, showing a comparable seroprevalence in these three different populations. The seroprevalence was 70.4% in haemodialysis patients, 7.7% in health care workers, and 75.6% in thalassaemic children, thus a seroprevalence among multitransfused or haemodialysed patients comparable to the one described in many other countries. Schistomiasis does not seem to play a role in the seroprevalence of this disease in Egypt.

Adult↗

PubMed1979

Information processing components of Koppitz errors on the Bender Visual-Motor Gestalt Test.

Correlated performance and latencies on the Bender, Matching Familiar Figures Test and Draw-a-Person along with the Slosson Intelligence Test for 39 male and 35 female middle-class black first graders. The results suggest that the Bender may owe much of its clinical validity to loadings across all stages of human information processing. General intelligence accounted for 9% of Bender variance. With the higher order variable intelligence partialed out, the preprocessing and central processing stages accounted for 16% and the response selection and response execution stages accounted for 6% of Bender variance. Kagan's hypothesis with retard to the involvement of conceptual tempo in Bender performance was not supported. However, Kagan's contention that impulsivity is measured only in situations with high response uncertainty did receive some support.

Black or African American↗