BackgroundAttention deficit hyperactivity disorder (ADHD), is a multifactorial disorder and converging evidence has implicated abnormalities of dopamine neurotransmission. The aim of this study was to examine the association of -141 polymorphisms in DRD2 gene with ADHA among Iranian-Azeri population.Materials and Methods A case–control association study included 153 patients with attention defi...

Background: Vitiligo is an acquired skin disorder that selectively destroys melanocytes in epidermis with an unknown etiology.   Objective: To investigate the exon 1 A49G polymorphism of cytotoxic T lymphocyte antigen-4 (ctla-4) gene in vitiligo patients.   Methods: The A49G polymorphism was detected by Polymerase Chain Reaction-Restriction Fragment Length Polymorphism (PCR-RFLP) method in 101...

Introduction: Vitamin D fulfills its crucial role in cell proliferation and death through signal transduction into the nucleus by vitamin D receptor (VDR). Recent studies have depicted the association between VDR gene polymorphisms and different cancers, including breast cancer. This study attempted to consider the relationship between VDR gene polymorphisms and breast cancer risk among women i...

Background: The p53 tumor suppressor gene plays important roles in genomic stability. Several reports have noted racial differences in the prevalence of p53 genotypes at the codon 72 in patients with endometriosis.To study the association of endometriosis with p53 codon 72 polymorphism in the population of Isfahan. Materials and Methods: We undertook a case–control study to examine the possible...

results the frequencies of the aa, at, and tt genotypes were 31%, 51%, and 18% in the chronic hbv patient group, and 40%, 45%, and 15% in the healthy control group, respectively. however, a lack of association of the + 874 polymorphism in the ifn-γ gene of those with chronic hbv infection was found. evaluation of hbv association with this polymorphism was significant under the dominant genetic ...

introduction: gestational diabetes mellitus (gdm) is defined as abnormal glucose tolerance that is first identified or diagnosedduring pregnancy.deiodinase d2 is essential for the local production of t3 through deiodination of triiodothyroxine (t4). several polymorphisms in d2 have been described. the single-nucleotide polymorphism (snp) in d2 thr92ala is associated with decreased enzyme activi...

introduction: a factor known to cause thrombophilia in women with recurrent pregnancy loss (rpl) is the a1298c polymorphism of methylenetetrahydrofolate reductase gene (mthfr). this study aimed to determine the association between rpl and this polymorphism in iranian patients. methods: in this case-control study, 30 patients with a previous history of two or more consecutive unexplained abortio...