Objective:To compare the genotype frequencies of HLA class-ⅡDRB1 alleles in Giardia(G.)lamblia-infected children.Methods:A total of 490 Egyptian children aged 2-16 years were subjected to microscopic stool examinatio...Objective:To compare the genotype frequencies of HLA class-ⅡDRB1 alleles in Giardia(G.)lamblia-infected children.Methods:A total of 490 Egyptian children aged 2-16 years were subjected to microscopic stool examination to detect G.lamblia infection,and to exclude other intestinal pathogens.On the basis of their microscopic findings,a group of 80 children were chosen as giardiasis cases,another 80 children were confirmed as Giardia free control group by immunochromatographic test,and the remaining children were excluded.Both giardiasis and control groups were then subjected to blood examination to identify their genetic type of HLA-DRB1 alleles.Results:HLA class-ⅡDRB1*03:01 and DRB1*13:01 alleles were significantly associated with G.lamblia infection(P<0.001 for each variable).On the other hand,HLA class-ⅡDRB1*04:02,DRB1*10:01,DRB1*14:01 and DRB1*15:01 alleles were significantly demonstrated in Giardia free children.However,other HLA-DRB1 alleles did not show any significant association with giardiasis.Conclusions:HLA class-ⅡDRB1*03,DRB1*13,DRB1*04,DRB1*10,DRB1*14 and DRB1*15 alleles may be involved in the establishment of host immune response to G.lamblia infection.展开更多
目的:为获得癫痫患者免疫学异常的证据,本实验检测了患者血清中抗脑抗体(Anti-encephalic antibodies,AEAb)及脑组织人类白细胞抗原Ⅱ类抗原(Human leukocyte antigen class Ⅱantigen,HLA class Ⅱ antigen,HLA-Ⅱ类抗原),并与正常对...目的:为获得癫痫患者免疫学异常的证据,本实验检测了患者血清中抗脑抗体(Anti-encephalic antibodies,AEAb)及脑组织人类白细胞抗原Ⅱ类抗原(Human leukocyte antigen class Ⅱantigen,HLA class Ⅱ antigen,HLA-Ⅱ类抗原),并与正常对照组比较。对象及方法:1.用ELISA方法测定37例癫痫患者血清抗脑自身抗体;2.借助免疫组织化学方法观察了HLA—Ⅱ类抗原在脑组织中表达与分布。结果:1.癫痫患者血清抗脑抗体高于正常对照;2.癫痫患者脑组织中星形胶质细胞和小胶质细胞异常表达HLA—Ⅱ类抗原。讨论:本实验证实癫痫患者存在一定程度的自身免疫应答异常。脑组织胶质细胞表面HLA—Ⅱ类抗原表达异常可能通过多种机制参与癫痫发病。展开更多
[目的]了解鼻息肉患者与人类白细胞Ⅱ类抗原(HLA-Ⅱ)的相关性。[方法]实验组为临床上已确诊的鼻息肉患者30例,对照组为81例正常健康人。采用HLA基因分型技术PCR-SSP法(PCR-sequence specific primers)检测HLA-Ⅱ类抗原。[结果]实验检测...[目的]了解鼻息肉患者与人类白细胞Ⅱ类抗原(HLA-Ⅱ)的相关性。[方法]实验组为临床上已确诊的鼻息肉患者30例,对照组为81例正常健康人。采用HLA基因分型技术PCR-SSP法(PCR-sequence specific primers)检测HLA-Ⅱ类抗原。[结果]实验检测了111例的HLA-DR和HLA-DQ共18个等位基因点,实验组和对照组之间HLA-DR16和HLA-DQ8,9的等位基因抗原频率差异有显著性意义,其中HLA-DR16的抗原频率实验组为10.00%,对照组为1.24%,相对危险度RR=8.90,P=0.03;而HLA-DQ 8的抗原频率实验组为20.00%,对照组为4.94%,相对危险度RR=4.81,P=0.01;HLA-DQ9的抗原频率实验组40.00%,对照组12.35%,相对危险度RR=4.73,P=0.001。[结论]HLA-DR16和HLA-DQ8,9与鼻息肉的发病有关,为鼻息肉的易感基因(阳性基因)。展开更多
Rheumatoid arthritis(RA) is a chronic, inflammatory autoimmune disease sustained by genetic factors. Various aspects of the genetic contribution to the pathogenetics and outcome of RA are still unknown. Several genes ...Rheumatoid arthritis(RA) is a chronic, inflammatory autoimmune disease sustained by genetic factors. Various aspects of the genetic contribution to the pathogenetics and outcome of RA are still unknown. Several genes have been indicated so far in the pathogenesis of RA. Apart from human leukocyte antigen, large genome wide association studies have identified many loci involved in RA pathogenesis. These genes include protein tyrosine phosphatase, nonreceptor type 22, Peptidyl Arginine Deiminase type Ⅳ, signal transducer and activator of transcription 4, cytotoxic T-lymphocyte-associated protein 4, tumor necrosis factor-receptor associated factor 1/complement component 5, tumor necrosis factor and others. It is important to determine whether a combination of RA risk alleles are able to identify patients who will develop certain clinical outcomes, such myocardium infarction, severe infection or lymphoma, as well as to identify patients who will respond to biological medication therapy.展开更多
文摘Objective:To compare the genotype frequencies of HLA class-ⅡDRB1 alleles in Giardia(G.)lamblia-infected children.Methods:A total of 490 Egyptian children aged 2-16 years were subjected to microscopic stool examination to detect G.lamblia infection,and to exclude other intestinal pathogens.On the basis of their microscopic findings,a group of 80 children were chosen as giardiasis cases,another 80 children were confirmed as Giardia free control group by immunochromatographic test,and the remaining children were excluded.Both giardiasis and control groups were then subjected to blood examination to identify their genetic type of HLA-DRB1 alleles.Results:HLA class-ⅡDRB1*03:01 and DRB1*13:01 alleles were significantly associated with G.lamblia infection(P<0.001 for each variable).On the other hand,HLA class-ⅡDRB1*04:02,DRB1*10:01,DRB1*14:01 and DRB1*15:01 alleles were significantly demonstrated in Giardia free children.However,other HLA-DRB1 alleles did not show any significant association with giardiasis.Conclusions:HLA class-ⅡDRB1*03,DRB1*13,DRB1*04,DRB1*10,DRB1*14 and DRB1*15 alleles may be involved in the establishment of host immune response to G.lamblia infection.
文摘目的:为获得癫痫患者免疫学异常的证据,本实验检测了患者血清中抗脑抗体(Anti-encephalic antibodies,AEAb)及脑组织人类白细胞抗原Ⅱ类抗原(Human leukocyte antigen class Ⅱantigen,HLA class Ⅱ antigen,HLA-Ⅱ类抗原),并与正常对照组比较。对象及方法:1.用ELISA方法测定37例癫痫患者血清抗脑自身抗体;2.借助免疫组织化学方法观察了HLA—Ⅱ类抗原在脑组织中表达与分布。结果:1.癫痫患者血清抗脑抗体高于正常对照;2.癫痫患者脑组织中星形胶质细胞和小胶质细胞异常表达HLA—Ⅱ类抗原。讨论:本实验证实癫痫患者存在一定程度的自身免疫应答异常。脑组织胶质细胞表面HLA—Ⅱ类抗原表达异常可能通过多种机制参与癫痫发病。
文摘[目的]了解鼻息肉患者与人类白细胞Ⅱ类抗原(HLA-Ⅱ)的相关性。[方法]实验组为临床上已确诊的鼻息肉患者30例,对照组为81例正常健康人。采用HLA基因分型技术PCR-SSP法(PCR-sequence specific primers)检测HLA-Ⅱ类抗原。[结果]实验检测了111例的HLA-DR和HLA-DQ共18个等位基因点,实验组和对照组之间HLA-DR16和HLA-DQ8,9的等位基因抗原频率差异有显著性意义,其中HLA-DR16的抗原频率实验组为10.00%,对照组为1.24%,相对危险度RR=8.90,P=0.03;而HLA-DQ 8的抗原频率实验组为20.00%,对照组为4.94%,相对危险度RR=4.81,P=0.01;HLA-DQ9的抗原频率实验组40.00%,对照组12.35%,相对危险度RR=4.73,P=0.001。[结论]HLA-DR16和HLA-DQ8,9与鼻息肉的发病有关,为鼻息肉的易感基因(阳性基因)。
文摘Rheumatoid arthritis(RA) is a chronic, inflammatory autoimmune disease sustained by genetic factors. Various aspects of the genetic contribution to the pathogenetics and outcome of RA are still unknown. Several genes have been indicated so far in the pathogenesis of RA. Apart from human leukocyte antigen, large genome wide association studies have identified many loci involved in RA pathogenesis. These genes include protein tyrosine phosphatase, nonreceptor type 22, Peptidyl Arginine Deiminase type Ⅳ, signal transducer and activator of transcription 4, cytotoxic T-lymphocyte-associated protein 4, tumor necrosis factor-receptor associated factor 1/complement component 5, tumor necrosis factor and others. It is important to determine whether a combination of RA risk alleles are able to identify patients who will develop certain clinical outcomes, such myocardium infarction, severe infection or lymphoma, as well as to identify patients who will respond to biological medication therapy.
