Objectives Tumor necrosis factor-α （TNF-α） may play an important role in host＇s immune response to mycobacterium tuberculosis （M. tuberculosis） infection. This study was to investigate the association of TNF-α...Objectives Tumor necrosis factor-α （TNF-α） may play an important role in host＇s immune response to mycobacterium tuberculosis （M. tuberculosis） infection. This study was to investigate the association of TNF-α gene polymorphism with pulmonary tuberculosis （TB） among patients with coal worker＇s pneumoconiosis （CWP）. Methods A case-control study was conducted in 113 patients with confirmed CWP complicated with pulmonary TB and 113 non-TB controls with CWP. They were matched in gender, age, job, and stage of pneumoconiosis. All participants were interviewed with questionnaires and their blood specimens were collected for genetic determination with informed consent. The TNF-α gene polymorphism was determined with polymerase chain reaction of restriction fragment length polymorphism （PCR-RFLP）. Frequency of genotypes was assessed for Hardy-Weinberg equilibrium by chi-square test or Fisher＇s exact probability. Factors influencing the association of individual susceptibility with pulmonary TB were evaluated with logistic regression analysis. Gene-environment interaction was evaluated by a multiplieative model with combined OR. All data were analyzed using SAS version 8.2 software. Results No significant difference in frequency of the TNF-α-308 genotype was found between CWP complicated with pulmonary TB and non-TB controls （2,2=5.44, P=-0.07）. But difference in frequency of the TNF-α-308 A allele was identified between them （2,2-5.14, P=0.02）. No significant difference in frequencies of the TNF-α-238 genotype and allele （P=0.23 and P=0.09, respectively） was found between cases and controls either, with combined （GG and AA） OR of 3.96 （95% confidence interval of 1.30-12.09） at the -308 locus of the TNF-α gene, as compared to combination of the TNF-α-238 GG and TNF-α-308 GG genotypes. Multivariate-adjusted odds ratio of the TNF-α-238 GG and TNF-α-308 GA genotypes was 1.98 （95% CI of 1.06-3.71） for risk for pulmonary TB in patients with CWP. There was a synergic interaction between the TNF-a-308 GG genotype and body mass index （OR=4.92）, as well as an interaction between the TNF-α-308 GG genotype and history of BCG immunization or history of TB exposure. And, the interaction of the TNF-α-238 GG genotype and history of BCG immunization or TB exposure with risk for pulmonary TB in them was also indicated. Conclusions TNF-α-308 A allele is associated with an elevated risk for pulmonary TB, whereas TNF-α-238 A allele was otherwise.展开更多
We observed the polymorphism distribution and coaction of uncoupling protein 3（UCP3）-55C/T,adiponectin（APN）＋45T/G and tumor necrosis factor（TNF）-α-308G/A on the onset and development of T2DM in a Northern Chin...We observed the polymorphism distribution and coaction of uncoupling protein 3（UCP3）-55C/T,adiponectin（APN）＋45T/G and tumor necrosis factor（TNF）-α-308G/A on the onset and development of T2DM in a Northern Chinese Han population of 213[100 type 2 diabete（T2DM） patients and 113 health control subjects] by polymerase chain reaction-restriction fragment length polymorphisum（PCR-RFLP） method.Results demonstrate the polymorphism of UCP3-55C/T,APN＋45T/G,and TNF-α-308G/A related to T2DM onset and developement.And the individuals carrying UCP3-55T,APN＋45G and TNF-α-308A allele had higher T2DM risk.Those results are the first report to evaluate the association of the coaction of UCP3,APN,TNF-α genes polymorphism on T2DM risk and the susceptibility of T2DM in the Northern Chinese Han population.展开更多
The relationship between tumour necrosis lactose （TNF-α） gene polymorphism and inhibitory effects of triptolide on TNF-α production from peripheral blood mononuclear cells （PBMC） of healthy humans was investigat...The relationship between tumour necrosis lactose （TNF-α） gene polymorphism and inhibitory effects of triptolide on TNF-α production from peripheral blood mononuclear cells （PBMC） of healthy humans was investigated. Genomic DNA from 41 healthy people was typed for TNF-α- 308 polymorphism by allele-specific polymorphism chain reaction （AS-PCR）. The TNF-α concentration in the supernatant was measured by ELISA. The results showed that the production of TNF-α from TNF-α -308 non-G/G genotype PBMC was higher than that from TNF-α-308 G/G genotype PBMC after stimulated by LPS. Triptolide could lower the production of TNF-α from G/ G genotype PBMC, but had no effect on the level of TNF-α from non-G/G genotype PBMC. It was concluded that TNF-α gene polymorphism was related to the TNF-α production from triptolide-inhibited PBMC culture in healthy humans.展开更多
Objective： Previous studies have investigated the role of cytotoxic T-lymphocyte antigen-4 （CTLA-4） and tumor necrosis factor-alpha （TNF-a） in carcinogenesis of osteosarcoma, but their results were inconsistent. ...Objective： Previous studies have investigated the role of cytotoxic T-lymphocyte antigen-4 （CTLA-4） and tumor necrosis factor-alpha （TNF-a） in carcinogenesis of osteosarcoma, but their results were inconsistent. We aimed to clarify the associations between CTLA-4, TNF-a polymorphism and osteosarcoma risk by using meta-analysis. Methods： We searched relevant studies without language restriction in PubMed, EMbase, Cochrane Library, Google Scholar databases, Chinese National Knowledge Infrastructure （CNKI） and conference literature in humans published prior to March 2013. The strengths of the associations between genetic variants and osteosarcoma risk were estimated by odds ratio （OR） with 95% confidence interval （95% CI）. Results： A total of seven studies with 1,198 osteosarcoma patients and 1,493 controls were selected. Four studies were eligible for CTLA-4 （1,003 osteosarcoma and 1,162 controls）, and three studies for TNF-a （195 osteosarcoma and 331 controls）. Pooled results showed that rs231775 polymorphism of CTLA-4 was associated with osteosarcoma risk （GG vs. AA： OR=1.63, 95% CI=1.24-2.13; GG ＋ GA vs. AA： OR=1.56, 95% CI=1.21-2.01; AA ＋ GA vs. GG： OR=0.83, 95% CI=0.71-0.97; G vs. A： OR=1.21, 95% CI=1.08-1.36）. No significant heterogeneity was observed across the studies. No significant associations were found between rs5742909 polymorphism of CTLA-4 or rs1800629 polymorphism of TNF-a and osteosarcoma risk. Conclusions： These results suggest that the rs231775 polymorphism of CTLA-4 may play an important role in carcinogenesis of osteosarcoma.展开更多
Background:Henoch-Schönlein purpura(HSP)or IgAassociated vasculitis is related to immune disturbances.Polymorphisms of the heat shock protein 70-2 gene(HSP70-2)and the tumor necrosis factor-αgene(TNF-α)are know...Background:Henoch-Schönlein purpura(HSP)or IgAassociated vasculitis is related to immune disturbances.Polymorphisms of the heat shock protein 70-2 gene(HSP70-2)and the tumor necrosis factor-αgene(TNF-α)are known to be associated with immune diseases.The purpose of this study was to investigate the likely association of HSP70-2(+1267A/G)and TNF-α(+308A/G)gene polymorphisms with HSP in children.Methods:The polymerase chain reaction restriction fragment length polymorphism method was used to detect the HSP70-2 and TNF-αpolymorphisms in 205 cases of children with HSP and 53 controls;and the association of these polymorphisms with HSP and HSP nephritis(HSPN)was analyzed.Results:The G/G genotypic frequencies at the+1267A/G position of HSP70-2 in the HSP group(22.9%)were signifi cantly higher than those in the healthy control group(9.4%)(χ^(2)=4.764,P<0.05).The frequencies of the A/A,A/G and G/G genotypes of HSP70-2 in patients in the nephritis-free group and the HSPN group showed no statistically significant difference.The A/A genotype frequency at the+308G/A position of TNF-αin the HSP group was 8.3%,which was higher than that in the control group(χ^(2)=6.447,P<0.05).The A allele frequency of TNF-αin the HSP group was higher than that in the control group,with a statistically significant difference(χ^(2)=7.241,P<0.05).Conclusions:The HSP70-2(+1267A/G)and TNF-α(+308G/A)gene polymorphisms were associated with HSP in children.The G/G homozygosity of HSP70-2 and the A/A homozygosity of TNF-αmay be genetic predisposing factors for HSP.展开更多
Background Bacteremia remains a significant cause of morbidity and mortality after kidney transplantation. This study was conducted to investigate whether the polymorphisms of tumor necrosis factor （TNF）-β, interle...Background Bacteremia remains a significant cause of morbidity and mortality after kidney transplantation. This study was conducted to investigate whether the polymorphisms of tumor necrosis factor （TNF）-β, interleukin （IL）-1β, and IL-1 receptor antagonist （IL-lra） gene predicted the susceptibility to bacteremia within the first 6 months after kidney transplantation. Methods Subjects comprised 82 infected kidney transplant recipients and 60 non-infected kidney transplant recipients. Bacteremia was diagnosed in 16 of the 82 infected recipients. Genomic DNA from these 142 kidney transplant recipients was extracted from peripheral blood leukocytes. Regions containing the Ncol polymorphic site at position ＋252 of TNF-β gene and the Aval polymorphic site at position -511 of IL-Iβ gene were amplified by polymerase chain reaction （PCR） and subsequently digested with Ncol and Aval restriction enzymes, respectively. The polymorphic regions within intron 2 of IL-lra gene containing variable numbers of a tandem repeat （VNTR） of 86 base pairs were amplified by PCR. Results Genotypic and allelic frequencies were similar between infected recipients and non-infected ones. Individual locus analysis showed that recipient TNF-β and IL-lra gene polymorphisms were not associated with the presence of bacteremia （P=0.684 and P=0.567, respectively）. However, genotype analysis revealed that recipient IL-1β 511CC genotype was strongly associated with susceptibility to develop bacteremia （P=0.003）. Recipient IL-1β-511CC genotype （odds ratio 5.242, 95% confidence intervals 1.645-16.706, P=0.005） independently predicted the risk for bacteremia within the first 6 months after kidney transplantation. Conclusions These findings indicate a critical role of IL-1β gene polymorphisms in susceptibility to bacteremia after kidney transplantation, which may be useful to screen for patients at higher risk for post-transplant bacteremias. Thus, the identified individuals can benefit from preventive treatment and a less potent immunosuppressive regimen.展开更多
<strong>Aims: </strong>To evaluate the association of Nuclear factor kappa B1(NFkB1) gene polymorphism with inflammatory markers Urinary Monocyte Chemoattractant Protein 1 (UMCP1) and Tumor Necrosis Factor...<strong>Aims: </strong>To evaluate the association of Nuclear factor kappa B1(NFkB1) gene polymorphism with inflammatory markers Urinary Monocyte Chemoattractant Protein 1 (UMCP1) and Tumor Necrosis Factor alfa (TNF alfa) in Patients of diabetes mellitus with or without renal involvement in Eastern India. <strong>Material and Methods: </strong>Consecutive Patients of Type 2 Diabetes Mellitus (DM) with or without microalbuminuria attending SCB MEDICAL COLLEGE and HOSPITAL Medical OPDs in between September 2018 to September 2019 were recruited in this study. Patients were subjected to blood and urine investigations. DNA extraction and Restriction fragment Length Polymorphism (RFLP) was done in Department of Biochemistry. Controls were unrelated healthy attendants with no history of Diabetes Mellitus, HTN, Chronic Kidney Disease (CKD). <strong>Results:</strong> Mean Systolic BP, Fasting Blood Glucose, Post Prandial Blood Glucose, HBA1c, Total Cholesterol were significantly higher in diabetes mellitus and diabetic nephropathy groups than control group. Estimated Glomerular Filtration Rate was significantly lower in diabetic nephropathy (p value < 0.001). UMCP1, Urinary Albumin Creatinine Ratio, TNF alfa were higher in diabetes mellitus and nephropathy with p value (<0.001, 0.006 < 0.001) respectively. In between DM and Diabetic Nephropathy groups nfkb1 gene expression, umcp1 and tnf alfa levels were significantly increased in Diabetic nephropathy with p value 0.019, <0.01, 0.001 respectively. Insertion/insertion NFkB1 gene polymorphisms were more in diabetic nephropathy group and were positively correlated with inflammatory markers UMCP1 (r = 0.517, p < 0.01) and TNF alfa (r = 0.172, p = 0.19). <strong>Conclusion:</strong> insertion/insertion NFkB1 gene polymorphism increases the risk of nephropathy by 2.52 times (OR = 2.52, 95% CI: 0.04 - 0.63, p value = 0.019) in diabetes patients in eastern India.展开更多
目的探讨TNF-α启动子区基因多态性对宿主感染乙型肝炎病毒(hepatitis B virus,HBV)慢性化结局的关联。方法用病例-对照研究方法,291例慢性乙型肝炎患者作为病例组和212例乙型肝炎病毒自限性感染者作为对照组,应用聚合酶链反应-限制性...目的探讨TNF-α启动子区基因多态性对宿主感染乙型肝炎病毒(hepatitis B virus,HBV)慢性化结局的关联。方法用病例-对照研究方法,291例慢性乙型肝炎患者作为病例组和212例乙型肝炎病毒自限性感染者作为对照组,应用聚合酶链反应-限制性片段长度多态性(PCR-RFLP)方法对TNF-α基因启动子区-238G/A、-857C/T、-863C/A位点进行基因分型。结果携带TNF-α-238 GA基因型、-857 CC基因型是HBV感染后宿主发展为慢性乙型肝炎的易感因素(P<0.05);3个位点组成的单体型-238G/-857C/-863A的频率在慢性乙肝组显著高于HBV自限感染组。结论TNF-α启动子区基因多态性可能对宿主感染HBV慢性化结局产生影响。展开更多
基金supported by grants from China National Programs for Science and Technology Development (Grant No. 2003BA712A11-24)Scientific Research Fund of North China Coal Medical College (Grant No. 2005-14)
文摘Objectives Tumor necrosis factor-α （TNF-α） may play an important role in host＇s immune response to mycobacterium tuberculosis （M. tuberculosis） infection. This study was to investigate the association of TNF-α gene polymorphism with pulmonary tuberculosis （TB） among patients with coal worker＇s pneumoconiosis （CWP）. Methods A case-control study was conducted in 113 patients with confirmed CWP complicated with pulmonary TB and 113 non-TB controls with CWP. They were matched in gender, age, job, and stage of pneumoconiosis. All participants were interviewed with questionnaires and their blood specimens were collected for genetic determination with informed consent. The TNF-α gene polymorphism was determined with polymerase chain reaction of restriction fragment length polymorphism （PCR-RFLP）. Frequency of genotypes was assessed for Hardy-Weinberg equilibrium by chi-square test or Fisher＇s exact probability. Factors influencing the association of individual susceptibility with pulmonary TB were evaluated with logistic regression analysis. Gene-environment interaction was evaluated by a multiplieative model with combined OR. All data were analyzed using SAS version 8.2 software. Results No significant difference in frequency of the TNF-α-308 genotype was found between CWP complicated with pulmonary TB and non-TB controls （2,2=5.44, P=-0.07）. But difference in frequency of the TNF-α-308 A allele was identified between them （2,2-5.14, P=0.02）. No significant difference in frequencies of the TNF-α-238 genotype and allele （P=0.23 and P=0.09, respectively） was found between cases and controls either, with combined （GG and AA） OR of 3.96 （95% confidence interval of 1.30-12.09） at the -308 locus of the TNF-α gene, as compared to combination of the TNF-α-238 GG and TNF-α-308 GG genotypes. Multivariate-adjusted odds ratio of the TNF-α-238 GG and TNF-α-308 GA genotypes was 1.98 （95% CI of 1.06-3.71） for risk for pulmonary TB in patients with CWP. There was a synergic interaction between the TNF-a-308 GG genotype and body mass index （OR=4.92）, as well as an interaction between the TNF-α-308 GG genotype and history of BCG immunization or history of TB exposure. And, the interaction of the TNF-α-238 GG genotype and history of BCG immunization or TB exposure with risk for pulmonary TB in them was also indicated. Conclusions TNF-α-308 A allele is associated with an elevated risk for pulmonary TB, whereas TNF-α-238 A allele was otherwise.
基金Supported by the Scientific Research Foundation of Jilin Province,China(Nos.2007-0722,2008-2123,20100942)the Grants from the Developing and Reforming Community of Jilin Provinces,China(Nos.2006-1550,20080925,2010-1928)
文摘We observed the polymorphism distribution and coaction of uncoupling protein 3（UCP3）-55C/T,adiponectin（APN）＋45T/G and tumor necrosis factor（TNF）-α-308G/A on the onset and development of T2DM in a Northern Chinese Han population of 213[100 type 2 diabete（T2DM） patients and 113 health control subjects] by polymerase chain reaction-restriction fragment length polymorphisum（PCR-RFLP） method.Results demonstrate the polymorphism of UCP3-55C/T,APN＋45T/G,and TNF-α-308G/A related to T2DM onset and developement.And the individuals carrying UCP3-55T,APN＋45G and TNF-α-308A allele had higher T2DM risk.Those results are the first report to evaluate the association of the coaction of UCP3,APN,TNF-α genes polymorphism on T2DM risk and the susceptibility of T2DM in the Northern Chinese Han population.
文摘The relationship between tumour necrosis lactose （TNF-α） gene polymorphism and inhibitory effects of triptolide on TNF-α production from peripheral blood mononuclear cells （PBMC） of healthy humans was investigated. Genomic DNA from 41 healthy people was typed for TNF-α- 308 polymorphism by allele-specific polymorphism chain reaction （AS-PCR）. The TNF-α concentration in the supernatant was measured by ELISA. The results showed that the production of TNF-α from TNF-α -308 non-G/G genotype PBMC was higher than that from TNF-α-308 G/G genotype PBMC after stimulated by LPS. Triptolide could lower the production of TNF-α from G/ G genotype PBMC, but had no effect on the level of TNF-α from non-G/G genotype PBMC. It was concluded that TNF-α gene polymorphism was related to the TNF-α production from triptolide-inhibited PBMC culture in healthy humans.
基金supported by National Natural Science Foundation(No.81260315)Foundation of the Education Department of Guangxi Province,China(No.201010LX375)the Foundation of the Nature Science Fund,Guangxi Province,China(No.2012GXNSFBA053121)
文摘Objective： Previous studies have investigated the role of cytotoxic T-lymphocyte antigen-4 （CTLA-4） and tumor necrosis factor-alpha （TNF-a） in carcinogenesis of osteosarcoma, but their results were inconsistent. We aimed to clarify the associations between CTLA-4, TNF-a polymorphism and osteosarcoma risk by using meta-analysis. Methods： We searched relevant studies without language restriction in PubMed, EMbase, Cochrane Library, Google Scholar databases, Chinese National Knowledge Infrastructure （CNKI） and conference literature in humans published prior to March 2013. The strengths of the associations between genetic variants and osteosarcoma risk were estimated by odds ratio （OR） with 95% confidence interval （95% CI）. Results： A total of seven studies with 1,198 osteosarcoma patients and 1,493 controls were selected. Four studies were eligible for CTLA-4 （1,003 osteosarcoma and 1,162 controls）, and three studies for TNF-a （195 osteosarcoma and 331 controls）. Pooled results showed that rs231775 polymorphism of CTLA-4 was associated with osteosarcoma risk （GG vs. AA： OR=1.63, 95% CI=1.24-2.13; GG ＋ GA vs. AA： OR=1.56, 95% CI=1.21-2.01; AA ＋ GA vs. GG： OR=0.83, 95% CI=0.71-0.97; G vs. A： OR=1.21, 95% CI=1.08-1.36）. No significant heterogeneity was observed across the studies. No significant associations were found between rs5742909 polymorphism of CTLA-4 or rs1800629 polymorphism of TNF-a and osteosarcoma risk. Conclusions： These results suggest that the rs231775 polymorphism of CTLA-4 may play an important role in carcinogenesis of osteosarcoma.
基金supported by grants from the National Natural Science Foundation of China(No.81170635,81270785).
文摘Background:Henoch-Schönlein purpura(HSP)or IgAassociated vasculitis is related to immune disturbances.Polymorphisms of the heat shock protein 70-2 gene(HSP70-2)and the tumor necrosis factor-αgene(TNF-α)are known to be associated with immune diseases.The purpose of this study was to investigate the likely association of HSP70-2(+1267A/G)and TNF-α(+308A/G)gene polymorphisms with HSP in children.Methods:The polymerase chain reaction restriction fragment length polymorphism method was used to detect the HSP70-2 and TNF-αpolymorphisms in 205 cases of children with HSP and 53 controls;and the association of these polymorphisms with HSP and HSP nephritis(HSPN)was analyzed.Results:The G/G genotypic frequencies at the+1267A/G position of HSP70-2 in the HSP group(22.9%)were signifi cantly higher than those in the healthy control group(9.4%)(χ^(2)=4.764,P<0.05).The frequencies of the A/A,A/G and G/G genotypes of HSP70-2 in patients in the nephritis-free group and the HSPN group showed no statistically significant difference.The A/A genotype frequency at the+308G/A position of TNF-αin the HSP group was 8.3%,which was higher than that in the control group(χ^(2)=6.447,P<0.05).The A allele frequency of TNF-αin the HSP group was higher than that in the control group,with a statistically significant difference(χ^(2)=7.241,P<0.05).Conclusions:The HSP70-2(+1267A/G)and TNF-α(+308G/A)gene polymorphisms were associated with HSP in children.The G/G homozygosity of HSP70-2 and the A/A homozygosity of TNF-αmay be genetic predisposing factors for HSP.
文摘Background Bacteremia remains a significant cause of morbidity and mortality after kidney transplantation. This study was conducted to investigate whether the polymorphisms of tumor necrosis factor （TNF）-β, interleukin （IL）-1β, and IL-1 receptor antagonist （IL-lra） gene predicted the susceptibility to bacteremia within the first 6 months after kidney transplantation. Methods Subjects comprised 82 infected kidney transplant recipients and 60 non-infected kidney transplant recipients. Bacteremia was diagnosed in 16 of the 82 infected recipients. Genomic DNA from these 142 kidney transplant recipients was extracted from peripheral blood leukocytes. Regions containing the Ncol polymorphic site at position ＋252 of TNF-β gene and the Aval polymorphic site at position -511 of IL-Iβ gene were amplified by polymerase chain reaction （PCR） and subsequently digested with Ncol and Aval restriction enzymes, respectively. The polymorphic regions within intron 2 of IL-lra gene containing variable numbers of a tandem repeat （VNTR） of 86 base pairs were amplified by PCR. Results Genotypic and allelic frequencies were similar between infected recipients and non-infected ones. Individual locus analysis showed that recipient TNF-β and IL-lra gene polymorphisms were not associated with the presence of bacteremia （P=0.684 and P=0.567, respectively）. However, genotype analysis revealed that recipient IL-1β 511CC genotype was strongly associated with susceptibility to develop bacteremia （P=0.003）. Recipient IL-1β-511CC genotype （odds ratio 5.242, 95% confidence intervals 1.645-16.706, P=0.005） independently predicted the risk for bacteremia within the first 6 months after kidney transplantation. Conclusions These findings indicate a critical role of IL-1β gene polymorphisms in susceptibility to bacteremia after kidney transplantation, which may be useful to screen for patients at higher risk for post-transplant bacteremias. Thus, the identified individuals can benefit from preventive treatment and a less potent immunosuppressive regimen.
文摘<strong>Aims: </strong>To evaluate the association of Nuclear factor kappa B1(NFkB1) gene polymorphism with inflammatory markers Urinary Monocyte Chemoattractant Protein 1 (UMCP1) and Tumor Necrosis Factor alfa (TNF alfa) in Patients of diabetes mellitus with or without renal involvement in Eastern India. <strong>Material and Methods: </strong>Consecutive Patients of Type 2 Diabetes Mellitus (DM) with or without microalbuminuria attending SCB MEDICAL COLLEGE and HOSPITAL Medical OPDs in between September 2018 to September 2019 were recruited in this study. Patients were subjected to blood and urine investigations. DNA extraction and Restriction fragment Length Polymorphism (RFLP) was done in Department of Biochemistry. Controls were unrelated healthy attendants with no history of Diabetes Mellitus, HTN, Chronic Kidney Disease (CKD). <strong>Results:</strong> Mean Systolic BP, Fasting Blood Glucose, Post Prandial Blood Glucose, HBA1c, Total Cholesterol were significantly higher in diabetes mellitus and diabetic nephropathy groups than control group. Estimated Glomerular Filtration Rate was significantly lower in diabetic nephropathy (p value < 0.001). UMCP1, Urinary Albumin Creatinine Ratio, TNF alfa were higher in diabetes mellitus and nephropathy with p value (<0.001, 0.006 < 0.001) respectively. In between DM and Diabetic Nephropathy groups nfkb1 gene expression, umcp1 and tnf alfa levels were significantly increased in Diabetic nephropathy with p value 0.019, <0.01, 0.001 respectively. Insertion/insertion NFkB1 gene polymorphisms were more in diabetic nephropathy group and were positively correlated with inflammatory markers UMCP1 (r = 0.517, p < 0.01) and TNF alfa (r = 0.172, p = 0.19). <strong>Conclusion:</strong> insertion/insertion NFkB1 gene polymorphism increases the risk of nephropathy by 2.52 times (OR = 2.52, 95% CI: 0.04 - 0.63, p value = 0.019) in diabetes patients in eastern India.
文摘目的探讨TNF-α启动子区基因多态性对宿主感染乙型肝炎病毒(hepatitis B virus,HBV)慢性化结局的关联。方法用病例-对照研究方法,291例慢性乙型肝炎患者作为病例组和212例乙型肝炎病毒自限性感染者作为对照组,应用聚合酶链反应-限制性片段长度多态性(PCR-RFLP)方法对TNF-α基因启动子区-238G/A、-857C/T、-863C/A位点进行基因分型。结果携带TNF-α-238 GA基因型、-857 CC基因型是HBV感染后宿主发展为慢性乙型肝炎的易感因素(P<0.05);3个位点组成的单体型-238G/-857C/-863A的频率在慢性乙肝组显著高于HBV自限感染组。结论TNF-α启动子区基因多态性可能对宿主感染HBV慢性化结局产生影响。
