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1. 健常女性における卵巣の発達および機能不全（閉経）ovarian development and failure menopause in normal women [show details]
…One of the first events of sexual differentiation, occurring as early as the two-cell stage of the zygote, is the random, nearly complete inactivation of one X chromosome in all female somatic cells but…
2. Gross examination of the placentagross examination of the placenta [show details]
…outer layer is the chorion The amnion and chorion are derived from extraembryonic tissues of the zygote. The exocoelomic cavity, which is a remnant of the early gestational sac, separates the two layers …
3. 高次多胎妊娠率のコントロール戦略strategies to control the rate of high order multiple gestation [show details]
…improved embryo quality are used to identify developmentally competent embryos for transfer. The human zygote should undergo the first cleavage division by 24 to 27 hours postinsemination, the second cleavage …
4. 生殖補助医療施行後の妊娠転帰pregnancy outcome after assisted reproductive technology [show details]
…(ART) and include intracytoplasmic sperm injection (ICSI), gamete intrafallopian transfer (GIFT), and zygote intrafallopian transfer (ZIFT). In the United States, approximately 1.5 percent of all births and … increased risk of developing preeclampsia or pregnancy-induced hypertension compared with autologous IVF/ICSI pregnancies (OR 3.92,…
5. Molecular genetics of colorectal cancermolecular genetics of colorectal cancer [show details]
…to offspring as an inherited defect. If the mutation occurs spontaneously in the sperm, ovum, or zygote, the affected person parents do not manifest the cancer phenotype, but future progeny may inherit … arrest or undergoing terminal differentiation and induces resistance to apoptosis .…