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Articles by Sherin Mohamed Abd El-Aziz
Total Records ( 2 ) for Sherin Mohamed Abd El-Aziz
  Mohammed Amin Mohammed , Alaa Mahamad A. Hakeem El-Gamal , Nesreen Moustafa Omar , Abdelhadi M. Shebl , Amany H. Mansour , Sherin Mohamed Abd El-Aziz , Gamal Othman and Soad Amin Mohammed
  The major challenge in inflammatory bowel disease is to achieve a sensitive and specific non invasive diagnostic marker. Recently, S100A12 (Calgranulin C) have been established to be elevated in the feces of patients with IBD. The objective was to investigate the utility of fecal S100A12, in comparison to fecal Calprotectin and standard inflammatory markers, as a screening and distinguishing marker for IBD and Irritable Bowel Syndrome (IBS) in patients with chronic diarrhea. Stool samples were obtained from 173 individuals presenting with gastrointestinal symptoms requiring endoscopy. Fecal S100A12, fecal Calprotectin and serum S100A12 levels were measured and correlated to final diagnosis and standard tests (ESR, CRP, platelet count, albumin, perinuclear anti-neutrophil and antineutrophil cytoplasmic antibodies. Full colonoscopy with histopathological examination was performed. Patients diagnosed with IBD had elevated fecal S100A12 (median 49.7 mg kg-1) and Calprotectin (median 385 mg kg-1) levels compared with the patients without IBD (n = 35, S100A12: Median 4.6 mg kg-1, p<0.0001, Calprotectin: Median 30.5 mg kg-1; p<0.0001). Both the sensitivity and specificity of fecal S100A12 (cutoff 8 mg kg-1) for the detection of IBD were 93.91 and 97%, respectively whereas fecal Calprotectin (cutoff 35 mg kg-1) gave a sensitivity of 93.96% and a specificity of 84.2%. Both fecal markers were superior to the sensitivities and specificities of any standard inflammatory test. Both fecal S100A12 and Calprotectin are sensitive markers of gastrointestinal inflammation but fecal S100A12 provided exceptional specificity in distinguishing patients with IBD from patients without IBD.
  Mohammed Amin Mohammed , Nesreen Moustafa Omar , Amany H. Mansour , Sherin Mohamed Abd El-Aziz and Gamal Othman
  Vitamin D is an important immune modulator that has an emerging role in inflammatory and metabolic liver diseases. An association has been established between low levels of vitamin D and several adverse health outcomes including upper respiratory and enteric infections, viral hepatitis and HIV infections. It exerts protective effects during infections by up-regulating the expression of cathelicidin and β-defensin 2 in phagocytes and epithelial cells. Thus, vitamin D appears to have systemic antimicrobial effects that may be crucial in a variety of both acute and chronic illnesses. In the current study, 25-hydroxyvitamin D3 (25-OHD3) levels were compared among 75 patients with chronic hepatitis B virus infection (Group I), sixty naturally immunized individuals (Group II) and another sixty age and sex-matched healthy controls. Routine biochemical parameters like hepatitis markers, hepatitis B virus serology, hepatitis B virus DNA, 25-OHD3 and Parathormone levels were measured. Patients in group I had a significantly lower 25-OHD level compared with group II and controls (13.9±4.93 vs. 22.1±6.14 and 23.15±8.28 ng mL-1, respectively p<0.001). In contrast, patients in group I had a higher parathyroid hormone level compared with group II and control group (103.14±24.5 vs. 75.14±23.4 and 74.1±20.15 pg mL-1, respectively p<0.001). Also, 25-OHD levels were inversely correlated with hepatitis B virus DNA levels. The observed diminished 25-OHD levels in patients infected with hepatitis B virus may be an indicator of the viral replication status and portends a poor prognosis.
 
 
 
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