长期保存胚囊细胞是否会影响植入和活产率? 一个丹麦全国性的基于登记的研究
Tilde Veng Eskildsen1,2, Michael Due Larsen3,4, Jens Fedder1,2,5
1Fertility Clinic, Odense University Hospital, 5000 Odense, Denmark.
Journal of clinical medicine
|February 13, 2026
概括
长期冷保存人类胚胎囊长达25个月并没有显著影响辅助生殖技术 (ART) 中的怀孕成功率. 生产率保持稳定,胚胎长期储存后出生的婴儿没有增加不良结果的风险.
科学领域:
- 生殖医学 生殖医学
- 低温生物学 低温生物学
- 胚胎学 胚胎学
背景情况:
- 辅助生殖技术 (ART) 使用冷保存来提高活产率,通过存储来自单个卵巢刺激周期的胚胎.
- 关于长期冷保存对人类胚胎细胞活力和随后的生殖结果的影响,存在相互矛盾的数据.
研究的目的:
- 为了研究延长胚胎细胞存储时间对冷胚胎移植 (FET) 后怀孕结果的影响.
- 评估早产的风险,对于妊娠年龄来说小 (SGA),对于妊娠年龄来说大 (LGA),以及与长期冷保存相关的先天性形.
主要方法:
- 丹麦一项全国性队列研究分析了2012年1月至2019年3月期间的12599名FET.
- 胚胎细胞存储时间被分为五组:≤3个月,4-6个月,7-12个月,13-24个月和≥25个月.
- 采用多变量分析来评估生化妊娠,临床妊娠,活产率和新生儿结局,并调整混因素.
主要成果:
- 囊胞存储时间长达≥25个月并没有显著影响生化妊娠 (aOR 0.96,95% CI:0.82-1.12),临床怀孕 (aOR 0.96,95% CI:0.82-1.13) 或活产率 (aOR 0.89,95% CI:0.75-1.06).
- 没有观察到SGA或先天性形风险的显著增加.
- 在25个月或更长的储存组 (aOR:1.42,95%CI:0.84-2.42) 中,LGA风险略有,但不显著增加.
结论:
- 人类胚胎囊的冷保存长达25个月并没有显著地影响ART中的怀孕成功率.
- 延长胚胎储存似乎不会增加新生儿不良后果的风险,包括SGA和先天性形.
相关概念视频
Birth Control Methods
6.9K
Vasectomy is a surgical form of male sterilization that involves severing and sealing the vasa deferentia, preventing sperm from mixing with semen during ejaculation. Because a vasectomy does not impact the testes' ability to produce testosterone, hormone levels, libido, and sexual function generally remain unchanged. While vasectomy is highly effective in preventing pregnancy, with a success rate near 99.85%, rare cases of recanalization (spontaneous reconnection) can occur. Although...
6.9K
Role of Affect in Interpersonal Attraction
239
Affect plays a crucial role in shaping interpersonal evaluations and perceptions. Emotions influence how individuals judge and respond to others, often determining whether interactions are viewed positively or negatively. This effect can manifest directly through interactions with the person in question or indirectly via associations with unrelated emotional experiences.Direct Effects of Affect on AttractionAffect directly influences interpersonal attraction when a person’s behavior...
239
Measuring Reaction Rates
31.4K
Polarimetry finds application in chemical kinetics to measure the concentration and reaction kinetics of optically active substances during a chemical reaction. Optically active substances have the capability of rotating the plane of polarization of linearly polarized light passing through them—a feature called optical rotation. Optical activity is attributed to the molecular structure of substances. Normal monochromatic light is unpolarized and possesses oscillations of the electrical...
31.4K
The Influence of Affect on Cognition
305
Positive affect significantly influences cognitive processes, including evaluation, memory, creativity, and social judgments. Compared to negative affect, positive emotional states promote more favorable interpretations of stimuli, cognitive flexibility, and heuristic processing. These effects highlight emotions' powerful role in shaping how individuals perceive, remember, and interact with the world.Influence on Evaluation and AttributionWhen individuals experience positive affect, they are...
305
The Influence of Cognition on Affect
232
Cognition plays a pivotal role in shaping emotional experiences, as demonstrated by Schachter and Singer’s two-factor theory of emotion. According to this model, emotion arises from a combination of physiological arousal and cognitive interpretation. The body’s physiological response to stimuli is ambiguous and only gains emotional significance through cognitive labeling. For instance, an increased heart rate and adrenaline surge while standing near an attractive person may be...
232
Reaction Rate
65.9K
The rate of reaction is the change in the amount of a reactant or product per unit time. Reaction rates are therefore determined by measuring the time dependence of some property that can be related to reactant or product amounts. Rates of reactions that consume or produce gaseous substances, for example, are conveniently determined by measuring changes in volume or pressure.
The mathematical representation of the change in the concentration of reactants and products, over time, is the rate...
The mathematical representation of the change in the concentration of reactants and products, over time, is the rate...
65.9K


