Background：Paraoxonase 1（PON1） is an antioxidant enzyme that protects high-density lipoprotein（HDL） and low-density lipoprotein against oxidation.Limited studies have addressed the influenc of exercise on PON1 ac...Background：Paraoxonase 1（PON1） is an antioxidant enzyme that protects high-density lipoprotein（HDL） and low-density lipoprotein against oxidation.Limited studies have addressed the influenc of exercise on PON1 activity and its relationship with PON1 phenotypes.We investigated relationships between PON1-192 phenotypes,PON1 activity,aerobic exercise,and blood lipid and lipoprotein concentrations in middle-aged women.Methods：An exercise group（n=50） engaging in regular aerobic exercise and a control group（n=41） were selected from a subset of 300 Caucasian women that met the inclusion criteria.Serum PON1,salt-stimulated PON1（SSPON1）,and arylesterase（ARE） activities;cholesterol levels and ARE activities of total HDL and HDL subgroups（HDLs）（supernatants obtained by polyethylene glycol）;and blood lipid and lipoprotein concentrations were determined by standardized enzymatic methods.PON1-192 QQ（low activity）,QR（moderate activity）,and RR（high activity） phenotype groups were define using serum SSPON1/ARE activity ratios.The R-carries（RC） phenotype group consisted of the QR and RR groups combined.Results：All lipid and lipoprotein concentrations were greater in the exercise group than in the control group.Regardless of phenotype,no significan differences were observed between the exercise and control groups in terms of serum PON1,SSPON1,or ARE activity associated with HDLs（p〉 0.05）,whereas PON1 activities in QQ-phenotyped women in the exercise group were significant y higher than those in the control group（p〈0.01）,but not the RC group.A statistically significan interaction between PON1 phenotypes（QQ and RC groups） and exercise（exercise and control groups） on PON1 activity was found.Conclusion：These results showed that a regular aerobic exercise program can improve PON1 activity depending on PON1-192 phenotype,but not on lipid and lipoprotein levels,in middle-aged Turkish women.展开更多
目的采用Meta分析法综合评价对氧磷脂酶1 192Gln/Arg(PON1 Q192R)基因多态性与2型糖尿病并发冠心病的相关性。方法截至2017年3月,在Pubmed、Embase、Web of Science、中国知网、万方等数据库可检索到的已发表论文,由两位评价者根据纳入...目的采用Meta分析法综合评价对氧磷脂酶1 192Gln/Arg(PON1 Q192R)基因多态性与2型糖尿病并发冠心病的相关性。方法截至2017年3月,在Pubmed、Embase、Web of Science、中国知网、万方等数据库可检索到的已发表论文,由两位评价者根据纳入排除标准独立筛选和评价文献质量。采用Rev Man5.3和Stata12.0软件进行Meta分析,计算合并比值比(odds ratio,OR)及其95%可信区间(confidence intervals,CI),并进行敏感度分析和发表偏倚评估。结果 9个病例-对照研究纳入本研究,包括1353例病例组(2型糖尿病并发冠心病组)和1360例对照组(单纯2型糖尿病组)。Meta分析结果显示,与单纯糖尿病组比较,5种基因模型均提示PON1Gln/Arg基因多态性和2型糖尿病并发冠心病显著相关[等位基因模型:R vs Q,OR=1.50,95%CI(1.23~1.83);纯合子基因模型:RR vs QQ,OR=2.28,95%CI(1.52~3.42);杂合子基因模型:QR vs QQ,OR=1.42,95%CI(1.18~1.71);显性基因模型:RR+RQ vs QQ,OR=1.59,95%CI(1.33~1.89);隐性基因模型:RR vs RQ+QQ,OR=1.74,95%CI(1.24~2.45)]。人口学的亚组分析提示,对氧磷脂酶1 192Gln/Arg基因多态性与2型糖尿病并发冠心病的相关性在亚洲和高加索人群中比较,差异无统计学意义。敏感度结果显示,合并的结果是稳定可靠的,漏斗图检测未发现发表偏倚。结论 PON1 192Gln/Arg基因多态性与2型糖尿病并发冠心病风险呈显著相关性,携带R等位基因的2型糖尿病人群相对于携带Q等位基因者,可能更易并发冠心病。展开更多
基金supported by the Ege University Scientifi Research Projects Directorate(2006-BESYO-004)
文摘Background：Paraoxonase 1（PON1） is an antioxidant enzyme that protects high-density lipoprotein（HDL） and low-density lipoprotein against oxidation.Limited studies have addressed the influenc of exercise on PON1 activity and its relationship with PON1 phenotypes.We investigated relationships between PON1-192 phenotypes,PON1 activity,aerobic exercise,and blood lipid and lipoprotein concentrations in middle-aged women.Methods：An exercise group（n=50） engaging in regular aerobic exercise and a control group（n=41） were selected from a subset of 300 Caucasian women that met the inclusion criteria.Serum PON1,salt-stimulated PON1（SSPON1）,and arylesterase（ARE） activities;cholesterol levels and ARE activities of total HDL and HDL subgroups（HDLs）（supernatants obtained by polyethylene glycol）;and blood lipid and lipoprotein concentrations were determined by standardized enzymatic methods.PON1-192 QQ（low activity）,QR（moderate activity）,and RR（high activity） phenotype groups were define using serum SSPON1/ARE activity ratios.The R-carries（RC） phenotype group consisted of the QR and RR groups combined.Results：All lipid and lipoprotein concentrations were greater in the exercise group than in the control group.Regardless of phenotype,no significan differences were observed between the exercise and control groups in terms of serum PON1,SSPON1,or ARE activity associated with HDLs（p〉 0.05）,whereas PON1 activities in QQ-phenotyped women in the exercise group were significant y higher than those in the control group（p〈0.01）,but not the RC group.A statistically significan interaction between PON1 phenotypes（QQ and RC groups） and exercise（exercise and control groups） on PON1 activity was found.Conclusion：These results showed that a regular aerobic exercise program can improve PON1 activity depending on PON1-192 phenotype,but not on lipid and lipoprotein levels,in middle-aged Turkish women.
文摘目的采用Meta分析法综合评价对氧磷脂酶1 192Gln/Arg(PON1 Q192R)基因多态性与2型糖尿病并发冠心病的相关性。方法截至2017年3月,在Pubmed、Embase、Web of Science、中国知网、万方等数据库可检索到的已发表论文,由两位评价者根据纳入排除标准独立筛选和评价文献质量。采用Rev Man5.3和Stata12.0软件进行Meta分析,计算合并比值比(odds ratio,OR)及其95%可信区间(confidence intervals,CI),并进行敏感度分析和发表偏倚评估。结果 9个病例-对照研究纳入本研究,包括1353例病例组(2型糖尿病并发冠心病组)和1360例对照组(单纯2型糖尿病组)。Meta分析结果显示,与单纯糖尿病组比较,5种基因模型均提示PON1Gln/Arg基因多态性和2型糖尿病并发冠心病显著相关[等位基因模型:R vs Q,OR=1.50,95%CI(1.23~1.83);纯合子基因模型:RR vs QQ,OR=2.28,95%CI(1.52~3.42);杂合子基因模型:QR vs QQ,OR=1.42,95%CI(1.18~1.71);显性基因模型:RR+RQ vs QQ,OR=1.59,95%CI(1.33~1.89);隐性基因模型:RR vs RQ+QQ,OR=1.74,95%CI(1.24~2.45)]。人口学的亚组分析提示,对氧磷脂酶1 192Gln/Arg基因多态性与2型糖尿病并发冠心病的相关性在亚洲和高加索人群中比较,差异无统计学意义。敏感度结果显示,合并的结果是稳定可靠的,漏斗图检测未发现发表偏倚。结论 PON1 192Gln/Arg基因多态性与2型糖尿病并发冠心病风险呈显著相关性,携带R等位基因的2型糖尿病人群相对于携带Q等位基因者,可能更易并发冠心病。
