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不同监测方法在过氧化氢低温等离子体灭菌效果评价中的应用对比研究 被引量:5
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作者 张倩 《数理医药学杂志》 CAS 2022年第5期775-777,共3页
目的:对比分析生物指示剂和化学指示卡在过氧化氢低温等离子体灭菌效果监测中的应用价值,并分析影响二者监测结果的相关参数。方法:选择某院消毒供应中心开展的500批过氧化氢低温等离子体灭菌物品为研究对象,在灭菌效果监测中分别采用... 目的:对比分析生物指示剂和化学指示卡在过氧化氢低温等离子体灭菌效果监测中的应用价值,并分析影响二者监测结果的相关参数。方法:选择某院消毒供应中心开展的500批过氧化氢低温等离子体灭菌物品为研究对象,在灭菌效果监测中分别采用四类卡法(化学指示卡)和生物指示剂(嗜热脂肪杆菌芽孢生物指示剂)监测,对比监测效果,并分析灭菌参数(干燥方法、灭菌循环程序、装载量)对两种监测方法监测结果的影响。结果:在整体监测结果上,生物指示剂监测下灭菌不合格率为9.60%,与四类卡的9.20%相比(P>0.05)。不同干燥方法下,单纯气枪干燥时四类卡监测不合格率高于生物指示剂(P<0.05);不同灭菌循环程序下,长循环时生物指示剂监测不合格率高于四类卡(P<0.05);不同装载量下,40%~60%装载量时生物指示剂监测不合格率高于四类卡(P<0.05),80%以上装载量时四类卡监测不合格率高于生物指示剂(P<0.05)。结论:四类卡和生物指示剂对过氧化氢低温等离子体灭菌效果的整体监测价值相当,但干燥方法、灭菌循环程序、装载量是影响监测效果的重要参数,实践监测中应根据各参数的配置选择合理的灭菌监测方法。 展开更多
关键词 过氧化氢低温等离子体灭菌 四类卡 生物指示剂 参数
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The MNS16A polymorphism in the TERT gene in peri-centenarians from the Han Chinese population 被引量:1
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作者 LIU LiNa WANG ChengYe +5 位作者 LU Xiang XIAO FuHui WANG HuaWei YANG LiQin XU LiangYou KONG QingPeng 《Science China(Life Sciences)》 SCIE CAS 2014年第10期1024-1027,共4页
MNS16A, a variable number of tandem repeats polymorphism in the TERT gene, has been suggested to regulate telomerase activity. As telomerase activity has been reported to be related to life-span, we hypothesized that ... MNS16A, a variable number of tandem repeats polymorphism in the TERT gene, has been suggested to regulate telomerase activity. As telomerase activity has been reported to be related to life-span, we hypothesized that this polymorphism might affect human longevity by controlling the length of the telomere. To test this hypothesis, we collected 446 unrelated pericentenarian individuals (age)90, mean 94.45±3.45 years) and 332 normal controls (age 22-53, mean 35.0±12.0 years) from Dujiangyan, Sichuan, China. We typed the MNS16A polymorphism in both groups, and compared the allele and genotype frequencies between the peri-centenarian and control groups using the chi-squared test. There was no significant difference between the peri-centenarian and control groups. Thus, the MNS16A polymorphism in TERT might not influence human life-span, at least in the Hart Chinese population studied here. 展开更多
关键词 TELOMERASE LONGEVITY MNS16A polymorphism peri-centenarian
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