Endoscopic and immunohistopathological study of gastric, duodenal, and colonic mucosa in schistosomal polyposis Evaluation of the different methods of diagnosing schistosomiasis. Eosinophilia and schistomal egg count. Urinary infections associated with chronic salmonellosis. Hepatitis B surface antigenemia in hepatosplenic patients with active schistosomiasis. The effect of propranolol on portal hypertension and prevention of recurrent variceal bleeding in schistosomal and non-schistosomal patients. Serological and parasitological examination of some patients with manifestations suggestive leishmaniasis. Gastric fluid acidity in peptic lesions. The value of salt restriction in the treatment of hepatic ascites. Prevelance of hepatitis B surface antigen in serum and ascetic fluid of patients with chronic liver diseases. Evaluation of different doses of praziquantel in the cure of intestinal schistosomiasis. Study of plasma level of fibronectin in different stages of schistosomiasis. ELISA in detection of Entamoeba histolytica antigens in stools. Value of duplex ultrasonography in schistosomal hepatic lesions. Effect of sclerotherapy versus splenectomy – devascularization on haemostatic picture of patients with bleeding oesophageal varices. Study of HBV markers and HLA typing in chronic liver diseases (CLD). Atypical virus B hepatitis in Egypt. Peptic ulcer in chronic liver disease patients: A novel approach. Efficacy of two different dose levels of ofloxacin in drug resistant cases of enteric fever. Gastroesophageal endoscopic features in patients with chronic liver disease. Serum prealbumin concentrations in acute and chronic liver diseases. A study of the hormonal immunity and (HLA) tissue typing in different clinical forms of amoebiasis. Endoscopic and histopathologic appearance of the gastric mucosa in patients with chronic liver diseases. Endoscopic mucosal lesions in diagnosis of giardiasis. Bleeding oesophageal varices associated with hepatic schistosomiasis in Egypt. Alpha interferon in chronic viral hepatitis: A controlled study. The effect of treatment on circulating schistosomal antigens and hepatic periportal fibrosis in children with schistosomiasis mansoni. Responders and non-responders to interferon in patient with hepatitis C infection: A comparative retrospective study. Bleeding oesophageal varices in Egypt: Analysis of 362 patients. Effect of labetalol on portal pressure and estimated hepatic blood flow in patients with schistosomal hepatic fibrosis. Effects of propranolol therapy on portal haemodynamics in patient with hepatic schistosomiasis. A study of Helicobact pylori in patients with and without chronic liver disease. Sensitivity and specificity of alpha-L-fucosidase as a tumor marker in early diagnosis of hepatocellular carcinoma. Toxoplasma infections distinguished by avidity of IgG. The value of splenomegaly in predicting the source of upper gastrointestinal bleeding. Detection of Ccryptosporidium antigen in stool sample among diarrhoeic children. Evaluation of ELISA in detection of circulating antigen of bancroftian filariasis. Evaluating the detection of circulating filarial antigen in diagnosis of bancroftian filariasis and filarial hydrocele. High prevalence of hepatitis C virus RNA in saliva of patients with chronic HCV infection. The importance of detecting circulating Toxoplasma antigens in human cases. Signficance of alfa-fucosidase and n-acetylneuraminic acid as markers for hepatocellular carcinoma. Serum hepatocyte growth factor in shistosomal and non shistosomal chronic liver diseases. Shistosomiases-Associated glomerulopathy a field studies from Nile delta. African Study of Helicobacter Pylori in dyspepsia with and without non-steroidal anti-inflammatory drugs (NSAIDs) intake and/or chronic liver disease (CLD) with the effect of therapy. Low Incidence of Helicobacter pylori Infection in Patients with Duodenal Ulcer and Chronic Liver Disease Scandinavian Non-invasive prediction of esophageal variceal presence and bleeding by duplex ultrasonography. Spontaneous bacterial peritonitis: a clinical and microbiological study. Study of pancreatic enzymes in patients with liver diseases. Prognostic value of serum anti- P53 antibody in Egyptian patients with hepatocellular carcinoma. Value of serum anti-p53 antibodies as a prognostic factor in Egyptian patients with hepatocellular carcinoma. Seroprevelance of Toxoplasmosis among Females in Rural Areas, Qalubeya Governorate. Assessment of eight non-invasive markers of liver fibrosis in Egyptian patients with chronic hepatitis C. Tolemerase Reverse Transcriptase Gene Expression as a Tumor Marker for Hepatocellular Carcinoma. Lymphocyte subgroups , tumour necrosis factor alpha and interleukin-6 in ascitic fluid and serum of patients with and sontaneous bacterial peritonitis at Benha university hospital.Egyptian Hypothyroidism is the prevalent thyroid dysfunction encountered during combined Interferon / Ribavirin (IFN / RBV) therapy in chronic hepatitis C patient. Early rebleeding and mortality in post HCV cirrhotic patients with esophageal variceal bleeding after band ligation: predictive factors and value of vascular endothelial growth factor. Clinical significance of vascular endothelial growth factor in hepatitis C related hepatocellular carcinoma in Egyptian patients