相关实验视频

Updated: Feb 4, 2026

Mouse Model of Surgical Uterine Injury and Subsequent Pregnancy Outcomes
04:08

Mouse Model of Surgical Uterine Injury and Subsequent Pregnancy Outcomes

Published on: June 27, 2025

1.1K

在人类早期胚胎中延迟的第二细胞分裂与不良的发育能力和怀孕结果有关,即使第三细胞分裂按时完成

Ran Dong1,2,3,4,5,6, Qing Li1,7, Shuiying Ma1,2,3,4,5,6

  • 1State Key Laboratory of Reproductive Medicine and Offspring Health, Center for Reproductive Medicine, Institute of Women, Children and Reproductive Health, Shandong University, Jinan 250012, China.

Maternal-fetal medicine (Wolters Kluwer Health, Inc.)
|February 2, 2026
PubMed
概括

胚胎中延迟的第二细胞分裂显著降低了胚胎囊形成率. 然而,当单个胚胎被移植时,怀孕结果仍然相似,这突显了胚胎发育动力学对成功体外受精的重要性.

关键词:
裂口 裂口 裂口 裂口胚胎转移是胚胎的转移.在试管婴儿中受精.怀孕的结果 怀孕的结果

更多相关视频

A Neural Network-Based Identification of Developmentally Competent or Incompetent Mouse Fully-Grown Oocytes10:04

A Neural Network-Based Identification of Developmentally Competent or Incompetent Mouse Fully-Grown Oocytes

Published on: March 3, 2018

7.1K
Analysis of Transforming Growth Factor ß Family Cleavage Products Secreted Into the Blastocoele of Xenopus laevis Embryos06:57

Analysis of Transforming Growth Factor ß Family Cleavage Products Secreted Into the Blastocoele of Xenopus laevis Embryos

Published on: July 21, 2021

2.8K

相关概念视频

Cleavage and Blastulation01:33

Cleavage and Blastulation

After a large-single-celled zygote is produced via fertilization, the process of cleavage occurs while zygotes travel through the uterine tube. Cleavage is a mitotic cell division that does not result in growth. With each round of successive cell division, daughter cells get increasingly smaller.
50.1K
Oxidative Cleavage of Alkenes: Ozonolysis01:46

Oxidative Cleavage of Alkenes: Ozonolysis

In ozonolysis, ozone is used to cleave a carbon–carbon double bond to form aldehydes and ketones, or carboxylic acids, depending on the work-up.
Ozone is a symmetrical bent molecule stabilized by a resonance structure.
13.0K
C–C Bond Cleavage: Retro-Aldol Reaction00:57

C–C Bond Cleavage: Retro-Aldol Reaction

The reverse of the aldol addition reaction is called the retro-aldol reaction. Here, the carbon–carbon bond in the aldol product is cleaved under acidic or basic conditions to form two molecules of carbonyl compounds. The mechanism of the reaction consists of three steps.
In the first step, as depicted in Figure 1, the base deprotonates the β-hydroxy ketone at the hydroxyl group to form an alkoxide ion.
7.6K
Alkynes to Carboxylic Acids: Oxidative Cleavage02:01

Alkynes to Carboxylic Acids: Oxidative Cleavage

Alkynes undergo oxidative cleavage in the presence of oxidizing reagents like potassium permanganate and ozone. The triple bond — one σ bond and two π bonds — is completely cleaved, and the alkyne is oxidized to carboxylic acids. When warm and basic aqueous potassium permanganate is used as an oxidizing agent, alkynes are first converted to carboxylate salts via an unstable α-diketone intermediate. Further, a mild acid treatment protonates the carboxylate anions...
6.8K
Ethers to Alkyl Halides: Acidic Cleavage02:18

Ethers to Alkyl Halides: Acidic Cleavage

Ethers are generally unreactive and unsuitable for direct nucleophilic substitution reactions since the alkoxy groups are strong bases and, therefore, poor leaving groups. However, ethers readily undergo acidic-cleavage reactions. Ethers can be converted to alkyl halides when heated with strong acids such as HBr and HI in a sequence of two substitution reactions.
7.1K
Outcomes of Glycolysis01:13

Outcomes of Glycolysis

Nearly all the energy used by cells comes from the bonds that make up complex organic compounds. These organic compounds are broken down into simpler molecules, such as glucose. As a result, cells extract energy from glucose over many chemical reactions—a process called cellular respiration.
Cellular respiration can occur aerobically (with oxygen) or anaerobically (without oxygen). In the presence of oxygen, cellular respiration starts with glycolysis and continues with pyruvate...
107.2K