Immunohistochemistry and scoring of Ki-67 proliferative index and p53 expression in gastric B cell lymphoma from Northern African population: a pilot study.

Background: This study aimed to clarify the Ki-67 distribution, p53 expression and their relationship with clinico-pathologic features of gastric B cell lymphoma from Northern African population.

Methods: Twenty paraffin blocks of gastric lymphoma were retrieved from the archival materials of Department of Pathology, Central University Hospital of Sidi Bel Abbes (Western Algeria) from 2007 to 2013. Four µm section specimens were stained by immunohistochemical (IHC) technique with Ki-67 and p53 tumor markers.

Immunohistochemical examination of cholecystokinin and gastrin receptors (CCK-2/gastrin-R) expression in normal and exocrine cancerous human pancreatic tissues.

Objective: Evaluating tissue samples of normal and exocrine cancerous human pancreas on the expression of CCK2/gastrin receptor. We performed an immunohistochemical protocol that allows efficient detection of this receptor in formalin-fixed, paraffin-embedded human tissues.

Methods: Twenty (20) paraffin blocks of pancreatic tissue sections were collected from the Departments of pathology, Central University Hospital of Sidi-bel-Abbes City (Western Algeria) for the period 2004-2013; ten (10) of them were normal pancreatic samples; and ten (10) cancerous pancreatic sections.