نتایج جستجو برای: hla polymorphism

تعداد نتایج: 144913  

Bazrgar M, Gourabi H Kuroshli Z, Sanati MH

Background: HLA-G is a non-classical human leukocyte antigen expressed primarily in fetal tissues at the maternal-fetal interface. The unique structure of HLA-G molecule permits a restricted peptide presentation and allows the modulation of the immune system. There is now general agreement that HLA-G is an important immunotolerant molecule with the capability of inhibiting immune cell functions...

Journal: :iranian journal of allergy, asthma and immunology 0
fateme afkhami department of medical genetic, medical faculty, tabriz university of medical sciences, tabriz, iran and immunology research center, tabriz university of medical sciences, tabriz, iran. mahmoud shekari khaniani department of medical genetic, medical faculty, tabriz university of medical sciences, tabriz, iran. layia farzadi women reproductive health research center, tabriz university of medical sciences, tabriz, iran. zeynab paknejad department of molecular biology, basic sciences faculty, ahar islamic azad university, ahar, iran. sima mansoori derakhshan department of medical genetic, medical faculty, tabriz university of medical sciences, tabriz, iran and immunology research center, tabriz university of medical sciences, tabriz, iran.

hla-g is a non-classical hla class ib molecule with limited protein variability generated by  alternative  splicing.  hla-g   displays  immunotolerant   properties  and  hence  plays important roles in the maintenance of a successful pregnancy and maternal tolerance of the semiallogenic fetus. polymorphism of the hla-g gene may potentially affect the biological properties of the protein, and a ...

Arabkhazaeli, A., Ganjian Mofrad , Z., Mollahoseini, F., Shahabi, M.,

Abstract Background and Objectives The HLA-G antigen is a non-classical HLA class-I with limited polymorphism. Several studies have indicated the role of a 14 bp Indel polymorphism rs371194629 in the 3'-UTR region of the HLA-G in acquisition of HTLV-1 infection. In this study, we investigated the correlation between the genotypes of this polymorphism and HTLV-1 infection in blood donors of Khor...

Journal: :iranian journal of immunology 0
shirin farjadian department of immunology abbas ghaderi department of immunology

background: hla genes are highly polymorphic and certain alleles are frequent only in specific populations. therefore, hla is a unique tool for studying the genetic relationship between different populations. iranians are ethnically diverse people and one of the major ethnic groups in iran is lur population inhabiting along the central and southern parts of zagros chain mountain. objectives: ge...

Journal: :iranian journal of allergy, asthma and immunology 0
zahra kuroshli department of genetics, reproductive biomedicine research center, royan institute, acecr, tehran, iran and department of biology, science and research branch, islamic azad university, tehran, iran. hamid gourabi department of genetics, reproductive biomedicine research center, royan institute, acecr, tehran, iran. masood bazrgar department of genetics, reproductive biomedicine research center, royan institute, acecr, tehran, iran. mohammadhossein sanati department of genetics, reproductive biomedicine research center, royan institute, acecr, tehran, iran and department of medical genetics, national institute of genetic engineering and biotechnology, tehran, iran. masoud zamani esteki centre for human genetics, university hospital leuven & department of human genetics, ku leuven, belgium.

hla-g is a tolerogenic molecule that expresses in cytotrophoblast cells and plays an important role in immune response suppression in maternal decidua. interactions between the extracellular domains of the hla-g protein with cell receptors of the immune system are well-known.this  study  investigated  the  association  between  hla-g  gene  polymorphism  with repeated implantation failure (rif)...

Journal: :Human immunology 2015
Steven J Mack

HLA genotyping via next generation sequencing (NGS) poses challenges for the use of HLA allele names to analyze and discuss sequence polymorphism. NGS will identify many new synonymous and non-coding HLA sequence variants. Allele names identify the types of nucleotide polymorphism that define an allele (non-synonymous, synonymous and non-coding changes), but do not describe how polymorphism is ...

Journal: :iranian journal of immunology 0
shirin farjadian department of immunology and abbas ghaderi department of immunology and

background: anthropological studies based on highly polymorphic hla genes pro-vide useful information for bone marrow donor registry, forensic medicine, disease as-sociation studies, as well as designing peptide vaccines against tumors, and infectious or autoimmune diseases. objective: this study was designed to investigate the genetic relationship of iranian arabs and jews using hla-class ii g...

Ali Motevalizade Ardekani, Fatemeh Pak, Nasrin Sehati, Parviz Kokhaei, Raziyeh Tootoonchian,

Background: Allogenic hematopoietic stem cell transplantation (HSCT) is a strategy used for treatment of different malignant diseases. However, success of allo-HSCT can be hampered by graft-versus-host-disease (GVHD). Natural killer (NK) cells may play an important role in activating antigen presenting cells and subsequent activation of T cells. The main purpose of this study was the evaluation...

Journal: :hepatitis monthly 0
jie fan department of epidemiology, school of public health and management, research center for medicine and social development, innovation center for social risk governance in health, chongqing medical university, chongqing, china xin huang department of epidemiology, school of public health and management, research center for medicine and social development, innovation center for social risk governance in health, chongqing medical university, chongqing, china juan chen key laboratory of molecular biology for infectious diseases, institute for viral hepatitis, department of infectious diseases, the second affiliated hospital, chongqing medical university, chongqing, china yiling cai obstetrics and gynecology department, chengdu women and children’s central hospital, sichuan province, china lin xiong maternal and child health hospital of chongqing yuzhong district, chongqing, china lihong mu department of epidemiology, school of public health and management, research center for medicine and social development, innovation center for social risk governance in health, chongqing medical university, chongqing, china; research center for medicine and social development, innovation center for social risk governance in health, school of public health and management, chongqing medical university, chongqing, china. tel/fax: +86-2368485008

background hepatitis b virus (hbv) infection is a serious public health problem in china and worldwide. mother-to-child transmission is one of hbv’s main transmission routes in highly endemic regions. genome-wide association studies (gwas) identify single nucleotide polymorphisms (snps) at hla loci as associated with hbv infection. however, the mechanisms of hbv perinatal transmission and break...

Journal: :iranian journal of allergy, asthma and immunology 0
zahra kuroshli department of biology, science and research branch, islamic azad university, tehran, iran. hamid gourabi department of genetics at reproductive biomedicine research center, royan institute for reproductive biomedicine, acecr, tehran, iran. masoud bazrgar department of genetics at reproductive biomedicine research center, royan institute for reproductive biomedicine, acecr, tehran, iran. mohammad hossein sanati department of medical genetics, national institute of genetic engineering and biotechnology, tehran, iran. elmira bahraminejad department of genetics at reproductive biomedicine research center, royan institute for reproductive biomedicine, acecr, tehran, iran. khadije anisi department of genetics at reproductive biomedicine research center, royan institute for reproductive biomedicine, acecr, tehran, iran.

the human leukocyte antigen (hla)-g molecule is expressed in cytotrophoblast cells, adult thymic epithelial cells, erythroblasts, pancreatic islets and mesenchymal stem  cells. although, hla-g expression in allotransplanted patients is correlated with a better allograft acceptance, it is associated with an advanced grade of the tumor in cancer. in addition to the role on the immune system, hla-...

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