The effect of T helper (Th)/T cytotoxic (Tc) ratio on disease severity in type A hemophilia patients.

Background And Objectives: The aim of this study was to investigate the T helper (Th) to T cytotoxic (Tc) ratio in children suffering from type A hemophilia disease and to evaluate the correlation of this ratio with disease severity.

Material And Method: Two mls of EDTA anti coagulated whole blood was collected. Immunophenotyping of lymphocytes count was carried out by FACS analysis using a double CD4 and CD8 kit.

Prevalence of musculoskeletal disorders in southeastern Iran: a WHO-ILAR COPCORD study (stage 1, urban study).

Objective: The purpose of this study was to determine the prevalence of musculoskeletal complaints and rheumatic diseases in southeast of Iran.

Methods: Subjects were selected based on a cluster sampling from 20 districts of urban areas in Zahedan, Iran. Subjects 15 years old and over were randomly selected and interviewed by trained interviewers in their houses.