铁蛋白放射免疫试剂盒在我国得到广泛应用,为临床诊断缺铁性贫血,铁负荷过度,肿瘤及癌症等疾病提供了重要的数据和信息。铁蛋白是由一个含铁量很高的核心与外周的24个蛋白亚基组成,经验证明反复冻融将破坏蛋白壳层,使其失活,因而国产试...铁蛋白放射免疫试剂盒在我国得到广泛应用,为临床诊断缺铁性贫血,铁负荷过度,肿瘤及癌症等疾病提供了重要的数据和信息。铁蛋白是由一个含铁量很高的核心与外周的24个蛋白亚基组成,经验证明反复冻融将破坏蛋白壳层,使其失活,因而国产试剂盒标准品全部使用4℃保存的溶液标准,且不许用户冰冻保存,因试剂盒标准品为溶液体系,不能大批量制备,批号更换频繁,且波动较大,各医学实验室需有效控制分析实验的批间变异和准确性,检验机关评价试剂盒的稳定性及健全性,必须建立使用方便,准确可靠的国家统一的质控血清,以满足上述需要。 材料和仪器 一、标准品:世界卫生组织铁蛋白国际标准品（WHO Ferritit Human Spleen for Immuno-assay（80/578）2ND International Standard）由英国生物标准及检定研究所获得;铁蛋白免疫测定用国家标准品由我所制备。 二、铁蛋白纯品:中国原子能研究院提供。 三、正常人血清:购于华清生化试剂研究所。展开更多
Objective: To determine the frequency and effect of premature luteinizing hormone (LH) surges on pregnancy rates in women with regular menstrual cycles. Design: Retrospective cohort study. Setting: Assisted Reproducti...Objective: To determine the frequency and effect of premature luteinizing hormone (LH) surges on pregnancy rates in women with regular menstrual cycles. Design: Retrospective cohort study. Setting: Assisted Reproductive Technology Program at private medical college. Patient(s): Regularly menstruating women undergoing frozen embryo transfer (ET). Intervention(s): Detection of urinary LH surges with an RIA kit during natural-cycle frozen-embryos transfer. Main Outcome Measure(s): Incidence of premature LH surges and pregnancy outcomes. Result(s): Eighty-eight (46.8% ) of 188 regularly menstruating women had premature LH surges and 33 (37% ) of those 88 had multiple premature LH surges. Pregnancy rates per ET are similar between women with and without premature LH surges. Conclusion(s): A high percentage of normally cycling women demonstrate premature urinary LH surges without an effect on outcome of frozen-thawed ETs.展开更多
文摘铁蛋白放射免疫试剂盒在我国得到广泛应用,为临床诊断缺铁性贫血,铁负荷过度,肿瘤及癌症等疾病提供了重要的数据和信息。铁蛋白是由一个含铁量很高的核心与外周的24个蛋白亚基组成,经验证明反复冻融将破坏蛋白壳层,使其失活,因而国产试剂盒标准品全部使用4℃保存的溶液标准,且不许用户冰冻保存,因试剂盒标准品为溶液体系,不能大批量制备,批号更换频繁,且波动较大,各医学实验室需有效控制分析实验的批间变异和准确性,检验机关评价试剂盒的稳定性及健全性,必须建立使用方便,准确可靠的国家统一的质控血清,以满足上述需要。 材料和仪器 一、标准品:世界卫生组织铁蛋白国际标准品（WHO Ferritit Human Spleen for Immuno-assay（80/578）2ND International Standard）由英国生物标准及检定研究所获得;铁蛋白免疫测定用国家标准品由我所制备。 二、铁蛋白纯品:中国原子能研究院提供。 三、正常人血清:购于华清生化试剂研究所。
文摘Objective: To determine the frequency and effect of premature luteinizing hormone (LH) surges on pregnancy rates in women with regular menstrual cycles. Design: Retrospective cohort study. Setting: Assisted Reproductive Technology Program at private medical college. Patient(s): Regularly menstruating women undergoing frozen embryo transfer (ET). Intervention(s): Detection of urinary LH surges with an RIA kit during natural-cycle frozen-embryos transfer. Main Outcome Measure(s): Incidence of premature LH surges and pregnancy outcomes. Result(s): Eighty-eight (46.8% ) of 188 regularly menstruating women had premature LH surges and 33 (37% ) of those 88 had multiple premature LH surges. Pregnancy rates per ET are similar between women with and without premature LH surges. Conclusion(s): A high percentage of normally cycling women demonstrate premature urinary LH surges without an effect on outcome of frozen-thawed ETs.
