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体外受精-胚胎移植中影响胚胎着床的因素分析 被引量:4
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作者 蔡桂丰 许伟标 +2 位作者 阮永铭 赵雪燕 杨桂艳 《生殖医学杂志》 CAS 2013年第3期190-193,共4页
目的探讨体外受精-胚胎移植(IVF-ET)周期中,影响胚胎着床的原因,为单胚胎移植,减少多胎妊娠寻找理论依据。方法 IVF-ET 1,193个周期,根据胚胎种植率分为三组:A组种植率0%;B组种植率50%;C组种植率100%。将三组的胚胎形态及临床各参数比... 目的探讨体外受精-胚胎移植(IVF-ET)周期中,影响胚胎着床的原因,为单胚胎移植,减少多胎妊娠寻找理论依据。方法 IVF-ET 1,193个周期,根据胚胎种植率分为三组:A组种植率0%;B组种植率50%;C组种植率100%。将三组的胚胎形态及临床各参数比较分析。结果 1,193个周期鲜胚移植共984个周期,三组注射人绒毛膜促性腺激素(HCG)日血清黄体生成素(LH)、雌二醇(E_2)水平、子宫内膜厚度有差异,但无统计学意义(P>0.05);三组HCG日血清孕酮(P)水平分别为(2.69±1.00)nmol/L、(2.64±0.97)nmol/L、(2.51±0.94)nmol/L,其中A与C组差异有统计学意义(P<0.05)。三组移植胚胎形态也存在明显的差异,D3的8A级胚胎的比率分别为31.53%、50.53%、60.20%。A组中,D3的6细胞和少于6细胞的移植胚胎率明显显著高于另外两组(P<0.01)。结论在注射HCG日血清P水平较低,胚胎8A的比率较高,年龄较轻的患者,其胚胎的着床率较高,是进行单胚胎移植的适宜人群。 展开更多
关键词 种植率 胚胎移植 胚胎评分 孕酮 单胚移植
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Low-input Proteomics Reshapes Our Understanding of Regulatory Mechanisms in Early Embryonic Development
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作者 CHEN Hong-Yu 《生物化学与生物物理进展》 2026年第4期1103-1106,共4页
Early mammalian embryogenesis represents a central question in life sciences,yet its molecular regulation has long been inferred primarily from transcriptomic and translatomic analyses.Recently,a study by Zhu et al.(2... Early mammalian embryogenesis represents a central question in life sciences,yet its molecular regulation has long been inferred primarily from transcriptomic and translatomic analyses.Recently,a study by Zhu et al.(2025)based on low-input proteomic approaches systematically charted protein dynamics from oocytes to blastocysts in both mice and humans,further interrogating molecular signatures of developmentally compromised human embryos at the single-embryo level.This work not only substantially expands proteome coverage during early development,but also reveals a pervasive uncoupling between transcriptional activation,translational initiation,and protein accumulation.These findings provide new perspectives on the relationship between zygotic genome activation(ZGA)and lineage specification.This paper discussed the central role of low-input proteomics in this study,highlighted its implications for reshaping current paradigms of early embryonic development,and considered its potential applications across broader areas of biomedical research. 展开更多
关键词 low-input proteomics early embryonic development zygotic genome activation(ZGA) protein dynamics singleembryo analysis
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