| 词汇 | progesterone |
| 释义 | progesterone noun[ U ] chemistry, biologyuk /prəʊˈdʒes.tər.əʊn/ us /proʊˈdʒes.tə.roʊn/ a female hormone that causes the womb to prepare for pregnancy孕酮，黄体酮 Biochemistry adipose adrenalin albumin aldosterone amino acid endonuclease endorphin enzymatic enzymatically enzyme messenger RNA mRNA mycoprotein non-enzymatic nuclease serotonin spike protein T level testosterone trace element You can also find related words, phrases, and synonyms in the topics: Animal reproduction progesterone | American Dictionaryprogesterone noun[ U ] us/proʊˈdʒes·təˌroʊn/ biology a female hormone (= chemical that influences growth and development) which causes the uterus to prepare for pregnancy Examples of progesteroneprogesterone These mechanical signals can be blocked by progesterone either by a direct action of this hormone or possibly through the support of stretch-induced uterine hypertrophy. We also verified that in our experimental conditions the three drugs inhibited progesterone-induced oocyte maturation. In the latter, maturation was induced by progesterone (1 mg/ml). The role of calcium in progesterone-induced meiotic maturation in amphibian oocytes remains unclear. In amphibians, oocyte maturation is induced by progesterone produced by the follicular cells. Neither the receptor for progesterone nor the subsequent events that lead to maturation are understood. This finding suggests that the participation of membrane phospholipids could be the same in progesterone-induced and muscimolinduced maturation. Not mutually exclusive is the possibility that metabolism of progesterone is enhanced, particularly by conversion of progesterone to its primary metabolite 20a-hydroxyprogesterone. Denuded oocytes were matured in vitro, spontaneously or by progesterone treatment (1 ug/ml), and inseminated with homologous spermatozoa. Incompetent oocytes were denuded and preincubated in the presence of the blockers for 30 min and maturation was then induced by progesterone (1 g/ml). Adjuvant therapy for postmenopausal patients with operable breast cancer who have estrogen-receptor or progesterone-receptor-positive tumors. However, progesterone may also act through a non-genomic mechanism to inhibit contractility. Evidence that nitric oxide synthase is involved in progesterone-induced acrosome exocytosis in mouse spermatozoa. Progesterone represses interleukin-8 and cyclo-oxygenase-2 in human lower segment fibroblast cells and amnion epithelial cells. That is, oocytes co-treated with progesterone and demecolcine elicited the normal membrane depolarisation observed with progesterone alone. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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