Background： Nontraumatic osteonecrosis of the femoral head （NONFH） is a debilitating disease that represents a significant financial burden for both individuals and healthcare systems. Despite its significance, how...Background： Nontraumatic osteonecrosis of the femoral head （NONFH） is a debilitating disease that represents a significant financial burden for both individuals and healthcare systems. Despite its significance, however, its prevalence in the Chinese general population remains unknown. This study aimed to investigate the prevalence of NONFH and its associated risk factors in the Chinese population. Methods： A nationally representative survey of 30,030 respondents was undertaken from June 2012 to August 2013. All participants underwent a questionnaire investigation, physical examination of hip, and bilateral hip joint X-ray and/or magnetic resonance imaging exalnination. Blood samples were taken after overnight fasting to test serum total cholesterol, triglyceride, and high-density lipoprotein （HDL） and low-density lipoprotein （LDL） levels. We then used multivariate logistic regression analysis to investigate the associations between various metabolic, demographic, and lifestyle-related variables and NONFH. Results： NONFH was diagnosed in 218 subjects （0.725%） and the estimated NONFH cases were 8.12 million among Chinesepeople aged 15 years and over. The prevalence of NONFH was significantly higher in males than in females （1.02% vs. 0.51%, x^2 = 24.997, P 〈 0.001 ）. Among NONFH patients, North residents were subjected to higher prevalence of NONFH than that of South residents （0.85% vs. 0.61%,x^2= 5.847, P = 0.016）. Our multivariate regression analysis showed that high blood levels oftriglycerides, total cholesterol, LDL-cholesterol, and non-H DL-cholesterol, male, urban residence, family history of osteonecrosis of the femoral head. heavy smoking, alcohol abuse and glucocorticoid intake, overweight, and obesity were all significantly associated with an increased risk of NONFH. Conclusions： Our findings highlight that NONFH is a significantpublic health challenge in China and underscore the need for policy measures on the national level. Furthermore, NONFH shares a number of risk factors with atherosclerosis.展开更多
背景:非创伤性股骨头坏死是一类以髋关节疼痛、功能障碍进行性加重为主要症状的疾病,严重危害人体健康。它的发病机制、早期诊断和治疗仍是临床骨科医生所面临的重大挑战。目的:采用同位素标记相对和绝对定量(isobaric tags for relativ...背景:非创伤性股骨头坏死是一类以髋关节疼痛、功能障碍进行性加重为主要症状的疾病,严重危害人体健康。它的发病机制、早期诊断和治疗仍是临床骨科医生所面临的重大挑战。目的:采用同位素标记相对和绝对定量(isobaric tags for relative and absolute quantitation,iTRAQ)技术,用蛋白质组学筛选可能与非创伤性股骨头坏死相关的关键蛋白。通过分析这些蛋白的表达特性及潜在的生物学功能,为进一步研究非创伤性股骨头坏死病因及分子机制奠定基础。方法:提取非创伤性股骨头坏死患者和健康人血清蛋白,应用iTRAQ技术标记蛋白,联合液相色谱和串联质谱分离和分析肽段。采用Proteome Discoverer 2.1软件对两组人群蛋白进行鉴定和定量分析,获得差异蛋白,再对这些表达差异蛋白进行GO注释、KEGG通路注释和功能富集聚类分析。结果与结论:①质谱鉴定共得到1006个蛋白,通过分析得到137个差异表达蛋白,其中54个蛋白表达上调,83个蛋白表达下调;②与非创伤性股骨头坏死发生相关的表达差异显著的蛋白质包括载脂蛋白B(ApoB)、载脂蛋白A2(ApoA2)、载脂蛋白E(ApoE)、补体C4和C7等;③KEGG信号通路富集分析结果显示,关键靶点的主要信号通路为p53信号通路、转录生长因子β信号通路、扩张型心肌病信号通路;④该结果提示,载脂蛋白与非创伤性股骨头坏死发生密切相关,并发现了与非创伤性股骨头坏死相关的活跃信号通路,为非创伤性股骨头坏死发生及分子机制奠定一定的实验基础。展开更多
目的研究非创伤性股骨头坏死(nontraumatic osteonecrosis of femoral head,NONFH)高发体质类型血瘀质与Apo A1位点多态性的相关性。方法选择93例NONFH患者作为病例组,随机选取无血缘关系健康志愿者83例作为对照组。对病例组进行中医体...目的研究非创伤性股骨头坏死(nontraumatic osteonecrosis of femoral head,NONFH)高发体质类型血瘀质与Apo A1位点多态性的相关性。方法选择93例NONFH患者作为病例组,随机选取无血缘关系健康志愿者83例作为对照组。对病例组进行中医体质问卷调查,将NONFH患者分为血瘀质32例、非血瘀质61例。受试者取血样2 m L,提取DNA进行PCR扩增,对PCR产物进行DNA测序,检测PAF-AH G994T、NOS1基因rs9658282位点多态性,进行统计学分析。结果 Apo A1基因-75G/A位点AA基因型(OR:2.578;95%CI:1.174-5.663;P=0.018)与A等位基因(OR:1.726;95%CI:1.121-2.658;P=0.013)可能是NONFH发病的危险因素之一。结论 Apo A1基因-75G/A可能与NONFH发病相关。Apo A1基因-75G/A位点基因多态性与血瘀质NONFH发病无相关性,Apo A1基因+83C/T位点基因多态性与血瘀质NONFH发病无相关性。展开更多
腺苷酸活化的蛋白激酶(AMP-activated protein kinase, AMPK)作为"人体物质能量的调节器",在肥胖症、糖尿病、高脂血症等人体代谢性疾病中起着重要的调节作用。近年来研究表明AMPK信号通路对成骨成脂分化、破骨等人体骨稳态...腺苷酸活化的蛋白激酶(AMP-activated protein kinase, AMPK)作为"人体物质能量的调节器",在肥胖症、糖尿病、高脂血症等人体代谢性疾病中起着重要的调节作用。近年来研究表明AMPK信号通路对成骨成脂分化、破骨等人体骨稳态代谢微环境具有调控作用,而骨稳态代谢微环境的失衡失调是骨质疏松症、股骨头坏死等骨病发生的重要原因之一。本文主要通过对AMPK结构、功能及其在人体脂代谢、骨代谢中的作用机制进行探讨,探析其在骨病形成中的作用,并探析其在非创伤性股骨头坏死(non-traumatic osteonecrosis of the femoral head, NONFH)中的可能作用机制,从而为NONFH的研究及靶向治疗提供理论依据。展开更多
非创伤性股骨头坏死(nontraumatic osteonecrosis of femoral head,NONFH)是由多种原因引起的骨组织血供中断,骨细胞坏死。因早期症状不典型、诊断困难,而患者晚期会面临因股骨头塌陷所引起的髋关节疼痛、活动受限,只能行髋关节置换术...非创伤性股骨头坏死(nontraumatic osteonecrosis of femoral head,NONFH)是由多种原因引起的骨组织血供中断,骨细胞坏死。因早期症状不典型、诊断困难,而患者晚期会面临因股骨头塌陷所引起的髋关节疼痛、活动受限,只能行髋关节置换术。故研究非创伤性股骨头坏死的发病机制对疾病早期诊断和治疗有重要意义。微小核糖核酸(microRNA,miRNA)是一种非编码的单链RNA分子,参与调控基因转录后的表达。随着miRNA研究技术的发展及对非创伤性股骨头坏死这一疾病研究的深入,越来越多的miRNA被发现在非创伤性股骨头坏死中异常表达。本文通过整理非创伤性股骨头坏死不同组织和细胞中的差异表达miRNA,发现了多次报道表达异常且趋势一致的miRNA,并对这些miRNA的功能和可能的发病机制进行综述。展开更多
文摘Background： Nontraumatic osteonecrosis of the femoral head （NONFH） is a debilitating disease that represents a significant financial burden for both individuals and healthcare systems. Despite its significance, however, its prevalence in the Chinese general population remains unknown. This study aimed to investigate the prevalence of NONFH and its associated risk factors in the Chinese population. Methods： A nationally representative survey of 30,030 respondents was undertaken from June 2012 to August 2013. All participants underwent a questionnaire investigation, physical examination of hip, and bilateral hip joint X-ray and/or magnetic resonance imaging exalnination. Blood samples were taken after overnight fasting to test serum total cholesterol, triglyceride, and high-density lipoprotein （HDL） and low-density lipoprotein （LDL） levels. We then used multivariate logistic regression analysis to investigate the associations between various metabolic, demographic, and lifestyle-related variables and NONFH. Results： NONFH was diagnosed in 218 subjects （0.725%） and the estimated NONFH cases were 8.12 million among Chinesepeople aged 15 years and over. The prevalence of NONFH was significantly higher in males than in females （1.02% vs. 0.51%, x^2 = 24.997, P 〈 0.001 ）. Among NONFH patients, North residents were subjected to higher prevalence of NONFH than that of South residents （0.85% vs. 0.61%,x^2= 5.847, P = 0.016）. Our multivariate regression analysis showed that high blood levels oftriglycerides, total cholesterol, LDL-cholesterol, and non-H DL-cholesterol, male, urban residence, family history of osteonecrosis of the femoral head. heavy smoking, alcohol abuse and glucocorticoid intake, overweight, and obesity were all significantly associated with an increased risk of NONFH. Conclusions： Our findings highlight that NONFH is a significantpublic health challenge in China and underscore the need for policy measures on the national level. Furthermore, NONFH shares a number of risk factors with atherosclerosis.
文摘背景:非创伤性股骨头坏死是一类以髋关节疼痛、功能障碍进行性加重为主要症状的疾病,严重危害人体健康。它的发病机制、早期诊断和治疗仍是临床骨科医生所面临的重大挑战。目的:采用同位素标记相对和绝对定量(isobaric tags for relative and absolute quantitation,iTRAQ)技术,用蛋白质组学筛选可能与非创伤性股骨头坏死相关的关键蛋白。通过分析这些蛋白的表达特性及潜在的生物学功能,为进一步研究非创伤性股骨头坏死病因及分子机制奠定基础。方法:提取非创伤性股骨头坏死患者和健康人血清蛋白,应用iTRAQ技术标记蛋白,联合液相色谱和串联质谱分离和分析肽段。采用Proteome Discoverer 2.1软件对两组人群蛋白进行鉴定和定量分析,获得差异蛋白,再对这些表达差异蛋白进行GO注释、KEGG通路注释和功能富集聚类分析。结果与结论:①质谱鉴定共得到1006个蛋白,通过分析得到137个差异表达蛋白,其中54个蛋白表达上调,83个蛋白表达下调;②与非创伤性股骨头坏死发生相关的表达差异显著的蛋白质包括载脂蛋白B(ApoB)、载脂蛋白A2(ApoA2)、载脂蛋白E(ApoE)、补体C4和C7等;③KEGG信号通路富集分析结果显示,关键靶点的主要信号通路为p53信号通路、转录生长因子β信号通路、扩张型心肌病信号通路;④该结果提示,载脂蛋白与非创伤性股骨头坏死发生密切相关,并发现了与非创伤性股骨头坏死相关的活跃信号通路,为非创伤性股骨头坏死发生及分子机制奠定一定的实验基础。
文摘目的研究非创伤性股骨头坏死(nontraumatic osteonecrosis of femoral head,NONFH)高发体质类型血瘀质与Apo A1位点多态性的相关性。方法选择93例NONFH患者作为病例组,随机选取无血缘关系健康志愿者83例作为对照组。对病例组进行中医体质问卷调查,将NONFH患者分为血瘀质32例、非血瘀质61例。受试者取血样2 m L,提取DNA进行PCR扩增,对PCR产物进行DNA测序,检测PAF-AH G994T、NOS1基因rs9658282位点多态性,进行统计学分析。结果 Apo A1基因-75G/A位点AA基因型(OR:2.578;95%CI:1.174-5.663;P=0.018)与A等位基因(OR:1.726;95%CI:1.121-2.658;P=0.013)可能是NONFH发病的危险因素之一。结论 Apo A1基因-75G/A可能与NONFH发病相关。Apo A1基因-75G/A位点基因多态性与血瘀质NONFH发病无相关性,Apo A1基因+83C/T位点基因多态性与血瘀质NONFH发病无相关性。
文摘腺苷酸活化的蛋白激酶(AMP-activated protein kinase, AMPK)作为"人体物质能量的调节器",在肥胖症、糖尿病、高脂血症等人体代谢性疾病中起着重要的调节作用。近年来研究表明AMPK信号通路对成骨成脂分化、破骨等人体骨稳态代谢微环境具有调控作用,而骨稳态代谢微环境的失衡失调是骨质疏松症、股骨头坏死等骨病发生的重要原因之一。本文主要通过对AMPK结构、功能及其在人体脂代谢、骨代谢中的作用机制进行探讨,探析其在骨病形成中的作用,并探析其在非创伤性股骨头坏死(non-traumatic osteonecrosis of the femoral head, NONFH)中的可能作用机制,从而为NONFH的研究及靶向治疗提供理论依据。
文摘非创伤性股骨头坏死(nontraumatic osteonecrosis of femoral head,NONFH)是由多种原因引起的骨组织血供中断,骨细胞坏死。因早期症状不典型、诊断困难,而患者晚期会面临因股骨头塌陷所引起的髋关节疼痛、活动受限,只能行髋关节置换术。故研究非创伤性股骨头坏死的发病机制对疾病早期诊断和治疗有重要意义。微小核糖核酸(microRNA,miRNA)是一种非编码的单链RNA分子,参与调控基因转录后的表达。随着miRNA研究技术的发展及对非创伤性股骨头坏死这一疾病研究的深入,越来越多的miRNA被发现在非创伤性股骨头坏死中异常表达。本文通过整理非创伤性股骨头坏死不同组织和细胞中的差异表达miRNA,发现了多次报道表达异常且趋势一致的miRNA,并对这些miRNA的功能和可能的发病机制进行综述。
