allergic rhinitis (ar) is an ige-mediated upper airway disease, and its impact on asthma has been widely recognized. protein tyrosine phosphatase non-receptor 22 (ptpn22) gene and the cytotoxic t-lymphocyte–associated antigen 4 (ctla-4) gene polymorphisms have been reported to be associated with several immune-related diseases. here we investigated the reffect of these two genes’ polymorphisms ...

several asthma susceptibility loci, including a region containing the vitamin d receptor (vdr) gene located at chromosome 12q, have been identified using genome-wide screens. our aim is to investigate the association between single nucleotide polymorphisms (snps) in vdr gene and asthma. one hundred one asthma patients and 206 healthy controls were enrolled in this study. genotypes were determin...

BACKGROUND Large epidemiologic studies have the potential to make valuable contributions to the assessment of gene-environment interactions because they prospectively collected detailed exposure data. Some of these studies, however, have only serum or plasma samples as a low quantity source of DNA. METHODS We examined whether DNA isolated from serum can be used to reliably and accurately geno...

in this study, we investigated the relationship between the genetic polymorphism of growth differentiation factor 9 (gdf9) genes and the litter size in 384 individuals of five breeds of black goats. four pairs of primers were designed to detect single nucleotide polymorphism of gdf9 gene in goats by pcr-sscp. the least square was used to analyze the relation between different genotypes and the ...

The objective of this study was to search for single nucleotide polymorphism (SNP)-type polymorphisms in the dopamine D1 receptor in West Azerbaijani native chicken and look for their association with egg production and body weight traits of chickens by polymerase chain reaction-single strand conformation polymorphism (PCR-SSCP). For this purpose 180 blood samples were taken from nativ...

Polymorphisms in 5’-flanking region of prolactin (PRL), exon 2 and exon 5 of prolactin receptor (PRLR) genesand its association with growth and egg traits were examined in breeder hens of Mazandaran native fowlsbreeding station. A single nucleotide polymorphism at site C-2402T and a 24 bp nucleotide sequence insertionat situation -382 in 5’-flanking regions of PRL gene were id...

To evaluate genetic variability among Entamoeba histolytica strains, we sequenced 9,077 bp from each of 14 isolates. The polymorphism rates from coding and noncoding regions were significantly different (0.07% and 0.37%, respectively), indicating that these regions are subject to different selection pressures. Additionally, single nucleotide polymorphisms (SNPs) potentially associated with spec...