Abstract Objective To assess the association of TNF-α and IL-1RA SNPs with the risk of silicosis in Chinese workers exposed to silica particles. Methods Case-control study design was used to enroll 68 silicotic patie...Abstract Objective To assess the association of TNF-α and IL-1RA SNPs with the risk of silicosis in Chinese workers exposed to silica particles. Methods Case-control study design was used to enroll 68 silicotic patients induced by silica particles and 68 healthy workers matched for length of silica particle exposure as controls. Both cases and controls were from the same company in southwest China, and each of them was requested to complete a questionnaire. Blood samples were drawn for genomic DNA extraction from each participant. The genotyping of TNF-α （-238 and -308） and IL-1RA （＋2018） was performed using polymerase chain reaction-based restriction fragment length polymorphism （PCR-RFLP） and SYBR green-based quantitative polymerase chain reaction {qPCR）, respectively. Unconditional logistic regression model was used to estimate odds ratios （ORs） and their 95% confidential intervals （Cl） for SNPs. Results No significant differences were found between cases and controls in particles exposure length, body mass index （BMI）, and status of smoking and alcohol consumption except for age （P=O.O01） and blood type （P=0.042）. The frequencies of TNF-c（（-238） and IL-1RA （＋2018） genotypes in cases were significantly different from those in controls, （P=O.O01 and P=0.O02, respectively）, while a borderline significant difference was found in the frequencies of TNF-α（-308） between cases and controls （P=0.063）. The variants of three SNPs increased the risk of silicosis in the Chinese workers exposed to silica particles. The adjusted ORs of TNFα（-308）, TNF-α（-238） and IL-1RA （＋2018） were 2.8 （95% Ch 2.1-7.5）, 20.9 （95% Ch 2.8-236.4） and 4.0 （95% CI： 2.6-10.2）, respectively. Conclusion It is suggested that cytokine polymorphisms of TNF-ct （-238, -308） and IL-1RA （＋2018） are associated with the risk of silicosis in the Chinese workers exposed to silica particles. Further independent studies on the interaction between SNPs and exp展开更多
Objective:To explore the relationship between IL-1β.IL-1Ra gene polymorphism and the occurrence of polycystic ovary syndrome(PCOS) infertility.Methods:A total of 59 PCOS infertility cases visiling the reproductive ce...Objective:To explore the relationship between IL-1β.IL-1Ra gene polymorphism and the occurrence of polycystic ovary syndrome(PCOS) infertility.Methods:A total of 59 PCOS infertility cases visiling the reproductive center of our hospital from Mar.2010 to Mar.2012 and 56 healthy women were selected.ELISA method was used lor the detection of IL-1β.IL-1Ra lewis,and the levels of serum supersensitivity C reaction protein(US-CRP).insulin(FINS),follieule-stimulating hormone(FSH) and fasting blood—glucose(FRG) were detected.PCR analysis technology was adopted to detect the gene polymorphism of the.511 site of IL-1βand the second introne of IL- 1Ra.Results:The levels of IL-1β.IL-1Ra.US-CRP.FINS and FBG in blood scrum of patients in PCOS group were significantly higher than those in control group(P【0.05 or P【0.01).The level of FSH in PCOS group was significantly lower than that in control group(P【0.05).The genotypic frequency of T/T.the 511 site of IL-1βin PCOS group was 42.37%.significantly higher than 1250%in control group 【P【0.01).The frequency of T allele was also significantly higher than that in control group(P【0.01).The genotypic frequency ofⅠ/Ⅴ.the second introne of IL-1Ra in PCOS group was 20.34%,signicianlly higher than 3.57%in control group(P【0.05).The frequency of V allele in PCOS group was significantly higher than that in control group(P【0.05).Conclusions: T allele of the 511 site of IL-1βgene and V allele of the second inlrone of IL-1Ra gene might be the genetic basis of the rising of IL-1β.IL-1Ra and US-CRP levels in blood serum of PCOS patients,and are associated with the infertility occurrence of PCOS patients.展开更多
Interleukin1β (IL 1β) is a proinflammatory cytokine and plays an important role in the pathogenesis of cerebral ischemia. The expression of IL 1β and its receptor antagonist (IL 1Ra) after cerebral ischemia is not ...Interleukin1β (IL 1β) is a proinflammatory cytokine and plays an important role in the pathogenesis of cerebral ischemia. The expression of IL 1β and its receptor antagonist (IL 1Ra) after cerebral ischemia is not well defined so far. The aim of present study was to explore the effect of electroacupuncture (EA) on the expression of IL 1β and IL 1Ra in rats after middle cerebral artery occlusion (MCAo) and reperfusion. Using in situ hybridization and RT PCR techniques, it was found that in the MCAo group the expression of IL 1β mRNA was markedly increased at 2 hr, 6 hr and 12 hr after reperfusion in the ischemic cerebral cortex compared with normal group. The IL 1Ra mRNA expression was rapidly induced by MCAo, and also increased significantly at 12 hr, reaching a peak level at 24 hr of reperfusion in ischemic cortex. In ischemic striatum the IL 1Ra mRNA was increased only at 12 hr after ischemia/reperfusion and decreased significantly at 24 hr after ischemia/reperfusion. In EA + MCAo group the expression of IL 1β mRNA in ischemic cortex was significantly decreased at 2 hr, 6 hr and 12 hr; but the expression of IL 1Ra mRNA was increased significantly compared with MCAo group 24 hr after reperfusion in the cerebral cortex and stratium. Our results indicated that EA stimulation of "Shuigou" (GV 26) and "Baihui" (GV 20) acupoints could downregulate the IL 1β mRNA expression and upregulate the IL 1Ra mRNA expression in cerebral ischemic rats, which might be the neuroprotective effect of EA on cerebral ischemia, and one of the mechanisms of EA anti-ischemia.展开更多
文摘Abstract Objective To assess the association of TNF-α and IL-1RA SNPs with the risk of silicosis in Chinese workers exposed to silica particles. Methods Case-control study design was used to enroll 68 silicotic patients induced by silica particles and 68 healthy workers matched for length of silica particle exposure as controls. Both cases and controls were from the same company in southwest China, and each of them was requested to complete a questionnaire. Blood samples were drawn for genomic DNA extraction from each participant. The genotyping of TNF-α （-238 and -308） and IL-1RA （＋2018） was performed using polymerase chain reaction-based restriction fragment length polymorphism （PCR-RFLP） and SYBR green-based quantitative polymerase chain reaction {qPCR）, respectively. Unconditional logistic regression model was used to estimate odds ratios （ORs） and their 95% confidential intervals （Cl） for SNPs. Results No significant differences were found between cases and controls in particles exposure length, body mass index （BMI）, and status of smoking and alcohol consumption except for age （P=O.O01） and blood type （P=0.042）. The frequencies of TNF-c（（-238） and IL-1RA （＋2018） genotypes in cases were significantly different from those in controls, （P=O.O01 and P=0.O02, respectively）, while a borderline significant difference was found in the frequencies of TNF-α（-308） between cases and controls （P=0.063）. The variants of three SNPs increased the risk of silicosis in the Chinese workers exposed to silica particles. The adjusted ORs of TNFα（-308）, TNF-α（-238） and IL-1RA （＋2018） were 2.8 （95% Ch 2.1-7.5）, 20.9 （95% Ch 2.8-236.4） and 4.0 （95% CI： 2.6-10.2）, respectively. Conclusion It is suggested that cytokine polymorphisms of TNF-ct （-238, -308） and IL-1RA （＋2018） are associated with the risk of silicosis in the Chinese workers exposed to silica particles. Further independent studies on the interaction between SNPs and exp
文摘Objective:To explore the relationship between IL-1β.IL-1Ra gene polymorphism and the occurrence of polycystic ovary syndrome(PCOS) infertility.Methods:A total of 59 PCOS infertility cases visiling the reproductive center of our hospital from Mar.2010 to Mar.2012 and 56 healthy women were selected.ELISA method was used lor the detection of IL-1β.IL-1Ra lewis,and the levels of serum supersensitivity C reaction protein(US-CRP).insulin(FINS),follieule-stimulating hormone(FSH) and fasting blood—glucose(FRG) were detected.PCR analysis technology was adopted to detect the gene polymorphism of the.511 site of IL-1βand the second introne of IL- 1Ra.Results:The levels of IL-1β.IL-1Ra.US-CRP.FINS and FBG in blood scrum of patients in PCOS group were significantly higher than those in control group(P【0.05 or P【0.01).The level of FSH in PCOS group was significantly lower than that in control group(P【0.05).The genotypic frequency of T/T.the 511 site of IL-1βin PCOS group was 42.37%.significantly higher than 1250%in control group 【P【0.01).The frequency of T allele was also significantly higher than that in control group(P【0.01).The genotypic frequency ofⅠ/Ⅴ.the second introne of IL-1Ra in PCOS group was 20.34%,signicianlly higher than 3.57%in control group(P【0.05).The frequency of V allele in PCOS group was significantly higher than that in control group(P【0.05).Conclusions: T allele of the 511 site of IL-1βgene and V allele of the second inlrone of IL-1Ra gene might be the genetic basis of the rising of IL-1β.IL-1Ra and US-CRP levels in blood serum of PCOS patients,and are associated with the infertility occurrence of PCOS patients.
文摘Interleukin1β (IL 1β) is a proinflammatory cytokine and plays an important role in the pathogenesis of cerebral ischemia. The expression of IL 1β and its receptor antagonist (IL 1Ra) after cerebral ischemia is not well defined so far. The aim of present study was to explore the effect of electroacupuncture (EA) on the expression of IL 1β and IL 1Ra in rats after middle cerebral artery occlusion (MCAo) and reperfusion. Using in situ hybridization and RT PCR techniques, it was found that in the MCAo group the expression of IL 1β mRNA was markedly increased at 2 hr, 6 hr and 12 hr after reperfusion in the ischemic cerebral cortex compared with normal group. The IL 1Ra mRNA expression was rapidly induced by MCAo, and also increased significantly at 12 hr, reaching a peak level at 24 hr of reperfusion in ischemic cortex. In ischemic striatum the IL 1Ra mRNA was increased only at 12 hr after ischemia/reperfusion and decreased significantly at 24 hr after ischemia/reperfusion. In EA + MCAo group the expression of IL 1β mRNA in ischemic cortex was significantly decreased at 2 hr, 6 hr and 12 hr; but the expression of IL 1Ra mRNA was increased significantly compared with MCAo group 24 hr after reperfusion in the cerebral cortex and stratium. Our results indicated that EA stimulation of "Shuigou" (GV 26) and "Baihui" (GV 20) acupoints could downregulate the IL 1β mRNA expression and upregulate the IL 1Ra mRNA expression in cerebral ischemic rats, which might be the neuroprotective effect of EA on cerebral ischemia, and one of the mechanisms of EA anti-ischemia.
