BACKGROUND AND AIMS Leukocyte-derived proteins in faeces, especially calprotectin, are increasingly used to assess disease activity in ulcerative colitis. The objectives of the present study were to assess the importance of factors related to the stool sampling procedure. METHODS For 2 days, patients with active ulcerative colitis collected two stool samples at each bowel movement. The time o...

background: some antigens of h. pylori are excreted into the stool of infected people. these antigens can be used to detect the infection by immunoassays such as elisa. our aim was to identify these antigens by immunoblotting and affinity chromatography techniques.   methods: four different antigenic preparations, namely, whole cell sonicate (wcs), outer membrane proteins (omps), cytoplasmic an...

This is the report on a patient with chronic diarrhea caused by microsporidia. He is married, infected with HIV and has low CD4 cell count. The diagnosis was established through stool parasite search using concentration methods and Gram-chromotrope staining technique. Ileum biopsy was also performed in this case. The etiological diagnosis may be established in a clinical laboratory, by chromotr...

Diarrheal diseases cause more morbidity and mortality around the world than human immunodeficiency virus (HIV), malaria, or tuberculosis. Given that effective treatment of persistent diarrheal illness requires knowledge of the causative organism, diagnostic tests are of paramount importance. The protozoan parasites of the genus Cryptosporidium are increasingly recognized to be responsible for a...