BACKGROUND Clearance of hepatitis B virus (HBV) infection requires a good host immune response. Cytokines like tumor necrosis factor-alpha (TNF- alpha) may play a role in such immune response. Genetic changes in TNF-a gene promoter region are known to influence TNF- alpha expression. We therefore studied the role of one such mutation in chronic HBV infection. METHODS Presence of -308 G/A poly...

PROBLEM To search for molecular markers of endometriosis the following polymorphisms: p53 codon 72 Pro (apoptosis), TNF alpha-308 (inflammation), VEGF-1164AA (angiogenesis), and SOD2 (oxidative stress) were investigated. METHOD OF STUDY Forty-two women-24 with surgically proven endometriosis and 18 with no endometriosis found at the time of laparoscopy-had buccal swabs taken for DNA analyses ...

Abstract We present a meta–analysis of independent studies on the potential implication in the occurrence of coronary heart disease (CHD) of the single–nucleotide polymorphism (SNP) at the –308 position of the tumor necrosis factor alpha (TNF–α) gene. We use Bayesian analysis to integrate independent data sets and to infer statistically robust measurements of correlation. Bayesian hypothesis te...

Polymorphisms in genes involved in the complex mechanisms of carcinogenesis may affect the susceptibility to cancer. The multifunctional cytokine tumor necrosis factor alpha (TNF alpha) has an important role in the pathogenesis of inflammatory, autoimmune and malignant diseases. It has a large spectrum of activities, including both antitumorigenic and protumorigenic. In recent years, several TN...

Hypersensitivity to beryllium (Be) is found in 1-16% of exposed workers undergoing immunological screening for beryllium disease using the beryllium lymphocyte proliferation test (BeLPT). However, only approximately 50% of BeLPT-positive workers present with lung granulomas (i.e. berylliosis). As berylliosis is associated with the human leukocyte antigen (HLA)-DP supratypic marker DPGlu69, the ...

background: the pro-inflammatory cytokine, tumor necrosis factor-alpha (tnf-α), is a pathogenic element for a number of disorders. previous studies have reported that the -1031 t/c and -238 g/a polymorphisms in the promoter region of the tnf-α gene are important factors in reproductive-related disorders. one of the most common gynecological diseases of women during the reproductive years is end...

In this study, we have investigated the role of the cannabinoid CB(2) (CB(2)) receptor in an in vivo mouse model of hepatic ischemia/reperfusion (I/R) injury. In addition, we have assessed the role of the CB(2) receptor in TNF-alpha-induced ICAM-1 and VCAM-1 expression in human liver sinusoidal endothelial cells (HLSECs) and in the adhesion of human neutrophils to HLSECs in vitro. The potent CB...

background the association between tumor necrosis factor-alpha (tnf-α) (-308 g/a) gene polymorphisms and level of tissue destruction and periodontal disease progression is not proved. objectives the present study investigated the stereological parameters of interdental papilla in chronic periodontitis (cp) patients with tnf-α (-308 g/a) gene polymorphisms. materials and methods sixty gingiva sa...

BACKGROUND The clearance of hepatitis B virus (HBV) is a complex process which may be influenced by many factors including polymorphisms in the tumor necrosis factor (TNF-) gene promoter. However, previous reports regarding the relationship between polymorphisms in the TNF- promoter and HBV clearance have been inconsistent. Therefore, we performed a meta-analysis on a larg...

The genetic background predisposing pregnant women to pre-eclampsia/eclampsia (PE/E) is still unknown. The aim of the current study was to investigate whether there is an association between the TNF-alpha-308 and 850 polymorphisms and PE or eclampsia. In this study, 40 cases of eclampsia, 113 cases of PE and 80 normotensive control cases were genotyped for the TNF-alpha-G-308A and C-850 polymor...