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File:Menstrual cycle- estradiol and progesterone graph.jpg For estradiol and progesterone of all 8 female subjects. ...r elevated progesterone levels after t2. One subject showed no increase in progesterone at t3, indicating missing ovulation, and was excluded from further studies,(558 × 593 (95 KB)) - 16:56, 5 May 2019File:Model mifepristone bound to progesterone receptor.jpg ==Model mifepristone bound to progesterone receptor== Binding of mifepristone (RU486, purple) in the progesterone receptor ligand binding domain (PR LBD, blue/red).(1,280 × 514 (171 KB)) - 12:59, 5 May 2013File:Average Luteal Progesterone Profiles by Group.jpg ==Average Luteal Progesterone Profiles by Group== Unadjusted mean luteal progesterone index values. Mean ± SEM: 22.2 ± 3.1 pg/ml (resident Bangladeshi sedentee(600 × 387 (31 KB)) - 10:29, 29 April 2020File:Average Luteal Progesterone by Age at UK Migration.jpg ==Average Luteal Progesterone Profiles by Categories of Age at Migration to the UK==(600 × 367 (25 KB)) - 11:54, 6 November 2018
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File:Spermatozoa motility 01.mov ...s to photorelease of progesterone, monitored at 30 frames/s. The flash for progesterone photorelease was at 5 s.(486 KB) - 15:08, 3 January 2012File:Progesterone.jpg ==Progesterone Molecular Structure== Historically, progesterone (progestin) was first isolated from the {{corpus luteum}} and its structure(300 × 197 (7 KB)) - 11:04, 6 March 2019File:Smear- secretory.jpg ...r with curled edges, appear immediately after ovulation due to increase in progesterone.(520 × 350 (57 KB)) - 17:30, 23 February 2013File:Corpus luteum lutein cells.jpg ...in the production of ovarian hormones that support the initial pregnancy. Progesterone is synthesized from cholesterol by both the large and small luteal cells up * produce estrogen and progesterone from the androgens produced by the theca lutein cells.(450 × 600 (104 KB)) - 08:29, 8 May 2013File:Human- secretory uterine endometrium.jpg * Increasing progesterone levels from the corpus luteum increase secretion from the glands.(515 × 350 (93 KB)) - 15:36, 30 April 2011File:Menstrual cycle fertility probability 01.jpg ...es timing of ovulation estimated using urinary metabolites of estrogen and progesterone.(600 × 364 (35 KB)) - 10:02, 5 October 2020File:Menstrual cycle - brain subcortical structural changes.png ...peak, compared to the pre-ovulatory phase. The effect was indeed driven by progesterone levels. (D) Progesterone levels during the three cycle phases,(900 × 390 (134 KB)) - 12:05, 6 November 2018File:Menstrual cycle- estradiol and progesterone graph.jpg For estradiol and progesterone of all 8 female subjects. ...r elevated progesterone levels after t2. One subject showed no increase in progesterone at t3, indicating missing ovulation, and was excluded from further studies,(558 × 593 (95 KB)) - 16:56, 5 May 2019File:Alternate androgen synthesis pathway.jpg ...en converted to the key intermediary, 17OHP. In the brain (and elsewhere), progesterone may be converted to the neuroactive steroid, allopregnanolone. 17OHP is 5α ...dative 3αHSD reactions have not been determined unambiguously. 17OHP, 17OH-progesterone; DHT, dihydrotestosterone; Preg, pregnenolone; RoDH, retinol dehydrogenase.(750 × 425 (99 KB)) - 08:21, 20 May 2019File:Average Luteal Progesterone Profiles by Group.jpg ==Average Luteal Progesterone Profiles by Group== Unadjusted mean luteal progesterone index values. Mean ± SEM: 22.2 ± 3.1 pg/ml (resident Bangladeshi sedentee(600 × 387 (31 KB)) - 10:29, 29 April 2020File:Ovarian follicular steroid synthesis.jpg ...e steroidogenesis in pre-luteinized follicles and the de novo synthesis of progesterone from cholesterol due to induction/up-regulation of CYP11A and 3βHSD after The principle steroid product of luteinized pre-ovulatory granulosa is progesterone, a differentiation triggered by the gonadotropin surge. However, absolute s(1,200 × 645 (89 KB)) - 10:37, 23 May 2016File:Model mifepristone bound to progesterone receptor.jpg ==Model mifepristone bound to progesterone receptor== Binding of mifepristone (RU486, purple) in the progesterone receptor ligand binding domain (PR LBD, blue/red).(1,280 × 514 (171 KB)) - 12:59, 5 May 2013File:Average Luteal Progesterone by Age at UK Migration.jpg ==Average Luteal Progesterone Profiles by Categories of Age at Migration to the UK==(600 × 367 (25 KB)) - 11:54, 6 November 2018File:Model male androsterone synthesis.jpg ...place between the placenta and the maternal circulation. Most circulating progesterone in the fetal circulation is likely to come from the placenta, and this will ...drosterone; DHEA, dehydroepiandrosterone; DHT, 5α-dihydrotestosterone; P4, progesterone; P5, pregnenolone; T, testosterone; 5αDHP, 5α-dihydroprogesterone; CYP17A(740 × 518 (92 KB)) - 13:06, 1 June 2019File:Estradiol.jpg ...e for development of secondary feminine sex characteristics. Together with progesterone these hormones also regulate changes that occur each menstrual cycle. Durin(500 × 316 (20 KB)) - 11:40, 6 March 2019File:Human ovary - corpus luteum 01.jpg ...ase of the menstrual cycle following ovulation. The corpus luteum produces progesterone, which supports the endometrium's ability to accommodate the implanted conc(1,024 × 979 (162 KB)) - 10:30, 3 March 2014File:Human ovary - corpus luteum 02.jpg ...ase of the menstrual cycle following ovulation. The corpus luteum produces progesterone, which supports the endometrium's ability to accommodate the implanted conc(837 × 800 (119 KB)) - 09:47, 3 March 2014File:Ovary histology 001.jpg ...y are now called granulosa lutein cells and theca lutein cells and produce progesterone and oestrogens.(1,280 × 1,024 (360 KB)) - 01:37, 14 February 2013File:Ovary histology 002.jpg ...y are now called granulosa lutein cells and theca lutein cells and produce progesterone and oestrogens.(1,280 × 1,024 (270 KB)) - 01:36, 14 February 2013File:Implantation cartoon 01.jpg * '''P4''' - progesterone * '''PR''' - progesterone receptor(1,000 × 756 (154 KB)) - 09:56, 29 April 2020File:Ovary corpus luteum.jpg * produce estrogen and progesterone from the androgens produced by the theca lutein cells.(2,178 × 1,137 (376 KB)) - 13:52, 8 August 2019File:XXhpgaxis.gif ...er ovulation and stimulate ovarian production of the hormones estrogen and progesterone.(300 × 495 (22 KB)) - 10:00, 3 September 2015File:Human spermatozoa chemotaxis model.jpg Molecular mechanisms involved in the sperm chemotaxis mediated by progesterone.(1,260 × 699 (132 KB)) - 13:53, 3 August 2014File:Human spermatozoa chemotaxis labeled model.jpg Molecular mechanisms involved in the sperm chemotaxis mediated by progesterone.(1,260 × 699 (158 KB)) - 07:41, 5 May 2019File:Corpus luteum.jpg * produce estrogen and progesterone from the androgens produced by the theca lutein cells.(450 × 600 (94 KB)) - 12:36, 9 May 2013File:Z3333865.implantation.png ...nteraction between Hatched Blastocyst and Luminal Epithelium: Induction by Progesterone and LIF.''' PLoS ONE 7(4): e34325. doi:10.1371/journal.pone.0034325(920 × 2,546 (2.87 MB)) - 07:28, 8 August 2012File:Roles of LIF in embryo implantation.jpeg ...ermal growth factor, Ereg: epiregulin, Ar: amphiregulin, E2: estrogen, P4: progesterone, IL: interleukins, PGs: prostaglandins, COX: cyclo-oxygenase, NK: natural k(600 × 422 (77 KB)) - 17:00, 3 September 2015File:Human uterine tube ciliated epithelium SEM.jpg ...rovilli are involved with the implantation process. Hormones (estrogen and progesterone) regulate both cilia and microvilli.(1,200 × 855 (248 KB)) - 09:20, 5 May 2013File:Menstrual cycle 02.jpg ...s are high. During the post-ovulatory LP, increasing levels of circulating progesterone are observed, along with increased daily body temperature.(467 × 515 (70 KB)) - 22:40, 20 April 2010File:XXhpgaxis.jpg ...ion and stimulate ovarian production of the hormones '''estrogen''' and '''progesterone'''.(300 × 495 (24 KB)) - 09:34, 24 July 2018File:Steroid biosynthesis pathway.png Progesterone (P4)(600 × 409 (101 KB)) - 09:33, 4 September 2018File:Placenta anchoring villi.jpg ...uterine stromal cells differentiate in response to both steroid hormones (progesterone) and embryonic signals into large epitheliod decidual cells. This process i(600 × 450 (167 KB)) - 09:32, 8 August 2016File:Menstrual cycle.png * There is great variability in human menstrual cycle length and {{progesterone}} and {{estrogen}} hormone levels.(1,000 × 750 (122 KB)) - 18:32, 7 January 2020File:Fetal adrenal gland steroidogenesis.jpg * '''Prog.''' - progesterone(778 × 600 (80 KB)) - 12:02, 6 March 2019