BACKGROUND Insulin resistance(IR)is the main complication found in 35%-80%of women with polycystic ovary syndrome(PCOS).However,there is no definite consensus regarding which marker to use for its assessment in PCOS w...BACKGROUND Insulin resistance(IR)is the main complication found in 35%-80%of women with polycystic ovary syndrome(PCOS).However,there is no definite consensus regarding which marker to use for its assessment in PCOS women.Research has shown that hyperinsulinemia is correlated with increased bone mass.Given that most women with PCOS are insulin resistant,which is independent from body fat and characterized by hyperinsulinemia,it could be hypothesized that there would be an increased bone mass in the patient as a result.Subsequently,increased bone mass could be measured using the wrist circumference method.AIM To assess the wrist circumference as an easy-to-detect marker of IR in Congolese women with PCOS.METHODS Seventy-two Congolese women with PCOS and seventy-one controls from the same ethnic group,were enrolled in the study(mean age 24.33±5.36 years).Fasting biochemical parameters,and the Homeostasis Model Assessment of insulin resistance(HOMA-IR)and body composition were evaluated.The nondominant wrist circumference was measured manually,as was the waist circumference(WC),hip circumference,height and weight.Calculated measures included evaluation of body mass index(BMI),Waist-to-Height(WHtR)and Waist-to-hip ratio(WHR).In addition,body composition was assessed by Bioelectrical Impedance Analysis using a body fat analyzer.RESULTS The non-dominant wrist circumference was more closely correlated with HOMAIR(r=0.346;P=0.003)and was the best anthropometrical marker correlated with IR(P=0.011)compared with other anthropometrical markers in women with PCOS:Dominant Wrist Circumference(r=0.315;P=0.007),Waist Circumference(WC)(r=0.259;P=0.028),BMI(r=0.285;P=0.016),WHR(r=0.216;P=0,068)and WHtR(r=0.263;P=0.027).The diagnostic accuracy of the non-dominant wrist circumference for the presence or absence of IR using Receiver-operating characteristic(ROC)curve analysis showed that the area under the ROC curve was 0.72.A cutoff value for the non-dominant wrist circumference of 16.3 cm was found to be the best predictor of IR in Congolese women with PCOS.CONCLUSION Non-dominant wrist circumference is,to date,the best anthropometrical marker of IR in Sub-Saharan African women with PCOS.It could be suggested as an easy-to-detect marker for assessing IR.展开更多
BACKGROUND In addition to insulin resistance,impaired insulin secretion has recently been identified as a crucial factor in the pathogenesis of type 2 diabetes mellitus(T2DM).Scarce clinical data exist for pediatric T...BACKGROUND In addition to insulin resistance,impaired insulin secretion has recently been identified as a crucial factor in the pathogenesis of type 2 diabetes mellitus(T2DM).Scarce clinical data exist for pediatric T2DM.AIM To investigate the association ofβ-cell function and insulin resistance with pediatric T2DM in the first Chinese multicenter study.METHODS This multicenter cross-sectional study included 161 newly diagnosed T2DM children and adolescents between January 2017 and October 2019.Children with normal glycemic levels(n=1935)were included as healthy control subjects.The homeostasis models(HOMAs)were used to assess theβ-cell function(HOMA2-%B)and insulin resistance(HOMA2-IR)levels.The HOMA index was standardized by sex and age.We performed logistic regression analysis to obtain odds ratios(ORs)for T2DM risk using the standardized HOMA index,adjusted for confounding factors including sex,Tanner stage,T2DM family history,body mass index z-score,and lipid profile.RESULTS The male-female ratio of newly diagnosed T2DM patients was 1.37:1(OR=2.20,P=0.011),and the mean ages of onset for boys and girls were 12.5±1.9 years and 12.3±1.7 years,respectively.The prevalence of related comorbidities including obesity,elevated blood pressure,and dyslipidemia was 58.2%,53.2%,and 80.0%,respectively.The T2DM group had lower HOMA2-%B levels(P<0.001)and higher HOMA2-IR levels(P<0.001)than the control group.Both the decrease in HOMA2-%B z-score(OR=8.40,95%CI:6.40-11.02,P<0.001)and the increase in HOMA2-IR z-score(OR=1.79,95%CI:1.60-2.02,P<0.001)were associated with a higher risk of T2DM,and the decrease in HOMA2-%B z-score always had higher ORs than the increase in HOMA2-IR z-score after adjusting for confounding factors.CONCLUSION Besides insulin resistance,β-cell function impairment is also strongly associated with Chinese pediatric T2DM.Gender difference in susceptibility and high comorbidities warrant specific T2DM screening and prevention strategies in Chinese children.展开更多
Hepatitis C virus (HCV) infection is an important risk factor for insulin resistance (IR). The latter is the pathogenic foundation underlying metabolic syndrome, steatosis and cirrhosis, and possibly hepatocellular ca...Hepatitis C virus (HCV) infection is an important risk factor for insulin resistance (IR). The latter is the pathogenic foundation underlying metabolic syndrome, steatosis and cirrhosis, and possibly hepatocellular carcinoma (HCC). The interplay between genetic and environmental risk factors ultimately leads to the development of IR. Obesity is considered a major risk factor, with dysregulation of levels of secreted adipokines from distended adipose tissue playing a major role in IR. HCV-induced IR may be due to the HCV core protein inducing proteasomal degradation of insulin receptor substrates 1 and 2, blocking intracellular insulin signaling. The latter is mediated by increased levels of both tumour necrosis factor-α (TNF-α) and suppressor of cytokine signaling 3 (SOC-3). IR, through different mechanisms, plays a role in the development of steatosis and its progression to steatohepatitis, cirrhosis and even HCC. In addition, IR has a role in impairing TNF signaling cascade, which in turn blocks STAT-1 translocation and interferon stimulated genes production avoiding the antiviral effect of interferon.展开更多
Various pathological conditions can cause fatty liver in children. Nonalcoholic steatohepatitis(NASH) in children has been known since 1983. However, NASH diagnosed in childhood does not have a favorable outcome.The p...Various pathological conditions can cause fatty liver in children. Nonalcoholic steatohepatitis(NASH) in children has been known since 1983. However, NASH diagnosed in childhood does not have a favorable outcome.The pathological characteristics of NASH are significantly different between children and adults. Nonalcoholic fatty liver disease(NAFLD)/NASH is accompanied by insulin resistance, which plays a pivotal role in its pathophysiology in both children and adults. In NASH,a "two-hit" model involving triglyceride accumulation(first hit) and liver damage(second hit) has been accepted. Insulin resistance was found to correlate with changes in fat levels; however, it did not correlate with fibrosis or NAFLD activity score in children. Therefore,insulin resistance may be important in the first hit.Because there is obvious familial clustering in NASH,genetic predisposition as well as environmental factors including diet might be the second hit of NAFLD/NASH.展开更多
目的探究不同血液净化方式治疗终末期糖尿病肾病的临床效果。方法回顾性选取2022年6月—2023年12月泉州市第一医院收治的96例终末期糖尿病肾病患者的临床资料,按照治疗方式的不同分为对照1组、对照2组和观察组,各32例。对照1组患者接受...目的探究不同血液净化方式治疗终末期糖尿病肾病的临床效果。方法回顾性选取2022年6月—2023年12月泉州市第一医院收治的96例终末期糖尿病肾病患者的临床资料,按照治疗方式的不同分为对照1组、对照2组和观察组,各32例。对照1组患者接受低通量血液透析(hemodialysis,HD)治疗,对照2组患者接受血液透析滤过治疗,观察组患者接受HD+血液灌流治疗。对比3组血清甲状旁腺激素(parathyroid hormone,PTH)清除率、胰岛素抵抗指数(homeostasis model assessment-insulin resistance,HOMA-IR)及微炎症状态指标、不良反应发生率。结果观察组血清PTH清除率高于对照1组、对照2组,HOMA-IR低于对照1组、对照2组,差异有统计学意义(P均<0.05)。观察组超敏C反应蛋白、白细胞介素-6、肿瘤坏死因子-α水平低于对照1组、对照2组,差异有统计学意义(P均<0.05)。观察组不良反应发生率低于对照1组、对照2组,差异有统计学意义(P<0.05)。结论终末期糖尿病肾病患者采取血液透析+血液灌流治疗效果较理想,可有效改善患者胰岛素抵抗指数、微炎症状态,且不良反应发生率较低。展开更多
目的:观察外科感染病人胰岛素抵抗(IR)状况,研究其临床意义,并探讨如何应用临床常用参数评价感染病人的胰岛素敏感性(ISI)。方法:检测外科不同病情严重程度感染患者空腹血糖(FBG)、空腹胰岛素(FINS),以正常健康人为对照,利用稳态模式评...目的:观察外科感染病人胰岛素抵抗(IR)状况,研究其临床意义,并探讨如何应用临床常用参数评价感染病人的胰岛素敏感性(ISI)。方法:检测外科不同病情严重程度感染患者空腹血糖(FBG)、空腹胰岛素(FINS),以正常健康人为对照,利用稳态模式评估法(HOMA)计算胰岛素抵抗指数(HOMA-IR)、胰岛素分泌指数(HOMA-)β,观察外科感染病人ISI,并且分析不同病情严重程度和不同病种感染病人之间ISI是否存在显著差异。使用多元线性回归方程和多因素Logistic进行多因素分析,应用临床常用的参数评价感染ISI状况。结果:①外科感染病人中IR发生率为92.06%(58/63)。不同病种,包括急性重症胰腺炎病人、肠瘘病人和急性胆管炎病人,不论HOMA-IRl、gHOMA-IR还是HOMA-β均无显著差异(P>0.05)。②按病情严重度和最终预后对病人分组:SIRS病人IR发生率为20%(7/35),脓毒症病人IR发生率为86.20%(25/29),脓毒性休克和MODS组病人IR发生率为95.83%(23/24),死亡组病人IR发生率为100%(10/10)。各组间IR有显著差异(P<0.01),而HOMA-β无显著差异(P>0.05)。③临床各常用参数与ISI之间相关性分析显示器官功能衰竭连续评分(sequential organ failure assessment,SOFA)、FINS、FBG、转铁蛋白、脓毒症评分(sepsis scores,SS)评分、C-反应蛋白(CRP)、前白蛋白、三酰甘油(TG)和胰岛素用量/葡萄糖用量与ISI呈独立正相关,方程的R2为0.900。各临床参数对IR的多因素Logistic回归显示FINS、FBG、低密度脂蛋白(LDL)和SOFA进入模型,其中FBG和FINS与IR的回归关系更明显,而其他临床指标与IR未显示有意义的回归关系。结论:①外科感染病人中普遍存在IR,并与引起感染的病种无关;②IR与疾病严重程度最终预后密切相关,可作为判断危重病人病情转归和预后的预警指标;③临床常用参数SOFA评分、FINS、FBG、转铁蛋白、SS评分、CRP、前白蛋白和TG与感染病人ISI的关系更为密切。展开更多
文摘BACKGROUND Insulin resistance(IR)is the main complication found in 35%-80%of women with polycystic ovary syndrome(PCOS).However,there is no definite consensus regarding which marker to use for its assessment in PCOS women.Research has shown that hyperinsulinemia is correlated with increased bone mass.Given that most women with PCOS are insulin resistant,which is independent from body fat and characterized by hyperinsulinemia,it could be hypothesized that there would be an increased bone mass in the patient as a result.Subsequently,increased bone mass could be measured using the wrist circumference method.AIM To assess the wrist circumference as an easy-to-detect marker of IR in Congolese women with PCOS.METHODS Seventy-two Congolese women with PCOS and seventy-one controls from the same ethnic group,were enrolled in the study(mean age 24.33±5.36 years).Fasting biochemical parameters,and the Homeostasis Model Assessment of insulin resistance(HOMA-IR)and body composition were evaluated.The nondominant wrist circumference was measured manually,as was the waist circumference(WC),hip circumference,height and weight.Calculated measures included evaluation of body mass index(BMI),Waist-to-Height(WHtR)and Waist-to-hip ratio(WHR).In addition,body composition was assessed by Bioelectrical Impedance Analysis using a body fat analyzer.RESULTS The non-dominant wrist circumference was more closely correlated with HOMAIR(r=0.346;P=0.003)and was the best anthropometrical marker correlated with IR(P=0.011)compared with other anthropometrical markers in women with PCOS:Dominant Wrist Circumference(r=0.315;P=0.007),Waist Circumference(WC)(r=0.259;P=0.028),BMI(r=0.285;P=0.016),WHR(r=0.216;P=0,068)and WHtR(r=0.263;P=0.027).The diagnostic accuracy of the non-dominant wrist circumference for the presence or absence of IR using Receiver-operating characteristic(ROC)curve analysis showed that the area under the ROC curve was 0.72.A cutoff value for the non-dominant wrist circumference of 16.3 cm was found to be the best predictor of IR in Congolese women with PCOS.CONCLUSION Non-dominant wrist circumference is,to date,the best anthropometrical marker of IR in Sub-Saharan African women with PCOS.It could be suggested as an easy-to-detect marker for assessing IR.
基金Supported by the National Key Research and Development Program of China,No.2016YFC1305302the National Natural Science Fund of China,No.81600608the Key Research and Development Program of Shandong Province,No.2017GSF18118.
文摘BACKGROUND In addition to insulin resistance,impaired insulin secretion has recently been identified as a crucial factor in the pathogenesis of type 2 diabetes mellitus(T2DM).Scarce clinical data exist for pediatric T2DM.AIM To investigate the association ofβ-cell function and insulin resistance with pediatric T2DM in the first Chinese multicenter study.METHODS This multicenter cross-sectional study included 161 newly diagnosed T2DM children and adolescents between January 2017 and October 2019.Children with normal glycemic levels(n=1935)were included as healthy control subjects.The homeostasis models(HOMAs)were used to assess theβ-cell function(HOMA2-%B)and insulin resistance(HOMA2-IR)levels.The HOMA index was standardized by sex and age.We performed logistic regression analysis to obtain odds ratios(ORs)for T2DM risk using the standardized HOMA index,adjusted for confounding factors including sex,Tanner stage,T2DM family history,body mass index z-score,and lipid profile.RESULTS The male-female ratio of newly diagnosed T2DM patients was 1.37:1(OR=2.20,P=0.011),and the mean ages of onset for boys and girls were 12.5±1.9 years and 12.3±1.7 years,respectively.The prevalence of related comorbidities including obesity,elevated blood pressure,and dyslipidemia was 58.2%,53.2%,and 80.0%,respectively.The T2DM group had lower HOMA2-%B levels(P<0.001)and higher HOMA2-IR levels(P<0.001)than the control group.Both the decrease in HOMA2-%B z-score(OR=8.40,95%CI:6.40-11.02,P<0.001)and the increase in HOMA2-IR z-score(OR=1.79,95%CI:1.60-2.02,P<0.001)were associated with a higher risk of T2DM,and the decrease in HOMA2-%B z-score always had higher ORs than the increase in HOMA2-IR z-score after adjusting for confounding factors.CONCLUSION Besides insulin resistance,β-cell function impairment is also strongly associated with Chinese pediatric T2DM.Gender difference in susceptibility and high comorbidities warrant specific T2DM screening and prevention strategies in Chinese children.
文摘Hepatitis C virus (HCV) infection is an important risk factor for insulin resistance (IR). The latter is the pathogenic foundation underlying metabolic syndrome, steatosis and cirrhosis, and possibly hepatocellular carcinoma (HCC). The interplay between genetic and environmental risk factors ultimately leads to the development of IR. Obesity is considered a major risk factor, with dysregulation of levels of secreted adipokines from distended adipose tissue playing a major role in IR. HCV-induced IR may be due to the HCV core protein inducing proteasomal degradation of insulin receptor substrates 1 and 2, blocking intracellular insulin signaling. The latter is mediated by increased levels of both tumour necrosis factor-α (TNF-α) and suppressor of cytokine signaling 3 (SOC-3). IR, through different mechanisms, plays a role in the development of steatosis and its progression to steatohepatitis, cirrhosis and even HCC. In addition, IR has a role in impairing TNF signaling cascade, which in turn blocks STAT-1 translocation and interferon stimulated genes production avoiding the antiviral effect of interferon.
文摘Various pathological conditions can cause fatty liver in children. Nonalcoholic steatohepatitis(NASH) in children has been known since 1983. However, NASH diagnosed in childhood does not have a favorable outcome.The pathological characteristics of NASH are significantly different between children and adults. Nonalcoholic fatty liver disease(NAFLD)/NASH is accompanied by insulin resistance, which plays a pivotal role in its pathophysiology in both children and adults. In NASH,a "two-hit" model involving triglyceride accumulation(first hit) and liver damage(second hit) has been accepted. Insulin resistance was found to correlate with changes in fat levels; however, it did not correlate with fibrosis or NAFLD activity score in children. Therefore,insulin resistance may be important in the first hit.Because there is obvious familial clustering in NASH,genetic predisposition as well as environmental factors including diet might be the second hit of NAFLD/NASH.
文摘目的探究不同血液净化方式治疗终末期糖尿病肾病的临床效果。方法回顾性选取2022年6月—2023年12月泉州市第一医院收治的96例终末期糖尿病肾病患者的临床资料,按照治疗方式的不同分为对照1组、对照2组和观察组,各32例。对照1组患者接受低通量血液透析(hemodialysis,HD)治疗,对照2组患者接受血液透析滤过治疗,观察组患者接受HD+血液灌流治疗。对比3组血清甲状旁腺激素(parathyroid hormone,PTH)清除率、胰岛素抵抗指数(homeostasis model assessment-insulin resistance,HOMA-IR)及微炎症状态指标、不良反应发生率。结果观察组血清PTH清除率高于对照1组、对照2组,HOMA-IR低于对照1组、对照2组,差异有统计学意义(P均<0.05)。观察组超敏C反应蛋白、白细胞介素-6、肿瘤坏死因子-α水平低于对照1组、对照2组,差异有统计学意义(P均<0.05)。观察组不良反应发生率低于对照1组、对照2组,差异有统计学意义(P<0.05)。结论终末期糖尿病肾病患者采取血液透析+血液灌流治疗效果较理想,可有效改善患者胰岛素抵抗指数、微炎症状态,且不良反应发生率较低。
文摘目的:观察外科感染病人胰岛素抵抗(IR)状况,研究其临床意义,并探讨如何应用临床常用参数评价感染病人的胰岛素敏感性(ISI)。方法:检测外科不同病情严重程度感染患者空腹血糖(FBG)、空腹胰岛素(FINS),以正常健康人为对照,利用稳态模式评估法(HOMA)计算胰岛素抵抗指数(HOMA-IR)、胰岛素分泌指数(HOMA-)β,观察外科感染病人ISI,并且分析不同病情严重程度和不同病种感染病人之间ISI是否存在显著差异。使用多元线性回归方程和多因素Logistic进行多因素分析,应用临床常用的参数评价感染ISI状况。结果:①外科感染病人中IR发生率为92.06%(58/63)。不同病种,包括急性重症胰腺炎病人、肠瘘病人和急性胆管炎病人,不论HOMA-IRl、gHOMA-IR还是HOMA-β均无显著差异(P>0.05)。②按病情严重度和最终预后对病人分组:SIRS病人IR发生率为20%(7/35),脓毒症病人IR发生率为86.20%(25/29),脓毒性休克和MODS组病人IR发生率为95.83%(23/24),死亡组病人IR发生率为100%(10/10)。各组间IR有显著差异(P<0.01),而HOMA-β无显著差异(P>0.05)。③临床各常用参数与ISI之间相关性分析显示器官功能衰竭连续评分(sequential organ failure assessment,SOFA)、FINS、FBG、转铁蛋白、脓毒症评分(sepsis scores,SS)评分、C-反应蛋白(CRP)、前白蛋白、三酰甘油(TG)和胰岛素用量/葡萄糖用量与ISI呈独立正相关,方程的R2为0.900。各临床参数对IR的多因素Logistic回归显示FINS、FBG、低密度脂蛋白(LDL)和SOFA进入模型,其中FBG和FINS与IR的回归关系更明显,而其他临床指标与IR未显示有意义的回归关系。结论:①外科感染病人中普遍存在IR,并与引起感染的病种无关;②IR与疾病严重程度最终预后密切相关,可作为判断危重病人病情转归和预后的预警指标;③临床常用参数SOFA评分、FINS、FBG、转铁蛋白、SS评分、CRP、前白蛋白和TG与感染病人ISI的关系更为密切。
