Background: The Multi state Markov models have extensively application with categorization of laboratory marker of CD4 cells for evaluation of HIV disease progression. These models with different states result in different effects of covariates and prediction of HIV disease trend. The main purpose of this study was comparison of four and five states models with the three- state in order to sele...

multiple sclerosis (ms) is a chronic inflammatory disease that leads to degeneration of the brain and spinal tissue. imbalances of cd4+ t cells including thelper1 (th1)/thelper2 (th2) and thelper17 (th17)/tregulatory (treg), their secreted cytokines and gene expressions, are important aspects of in immunopathogenesis of ms. vitamin a and its metabolites can regulate the immune system and appear...

Background: the aim of this study was to investigate the prognostic value of 18Fluorine-fluorodeoxyglucose positron emission tomography/computed tomography (18F-FDG PET/CT) parameters in both overall survival and progression-free survival in Stage I-III non-small cell lung cancer (NSCLC). Materials and Methods: In this retrospective study, 267 patients who were diagnosed as Stage I-III non-smal...

background: in patients with hepatitis b and c, environmental factors such as smoking and alcohol can cause liver fibrosis progression. but opium effects on liver fibrosis progression are not clear. this study was designed to assess the relationship of opium user and liver fibrosis progression. methods: in this case-control study, sixty patients in hepatitis b group and sixty patients in hepati...

Background and Aim: There are limited number of studies providing information regarding the progression acute hepatitis B virus (HBV) infection to chronic phase. Aim is determine percentage patients who progressed stage. Methods: It was a prospective study over period four years in which total 409 confirmed were enrolled but out them only three hundred four, (221 men 83 women, 06-82 old) able b...