Results 51 to 60 of about 70,085 (316)

Ovarian antral follicle number and the amount of gonadotropin used in ovarian stimulation in polycystic ovarian patients.

مجلة كلية الطب, 2011
Background: Polycystic ovary syndrome is the most common cause of anovulation, and the number of antral follicles is of great importance in determining ovarian reserve, so identification of patients with diminished ovarian reserve help in choosing ...
Hanan L. Sudek
doaj   +1 more source

Peptide Regulators in the Ovarian Follicle [PDF]

Australian Journal of Biological Sciences, 1981
Data generated within the last several years have shown that follicular fluid contains substances, presumably peptide in nature, which exert potentially important effects on granulosa cells and the oocyte. This review briefly summarizes the current evidence concerning the nature and importance of these putative regulators including the luteinization ...
openaire   +2 more sources

Human ovarian reserve from conception to the menopause

, 2009
Current understanding is that the human ovary contains a fixed number of several million non-growing follicles (NGF), established by five months of gestational age, that declines with increasing age to the menopause when approximately 1,000 NGF remain at
Thomas W Kelsey, Kelsey, Tom, W Hamish B Wallace, Wallace W. Hamish B., William H. B. Wallace, Thomas W. Kelsey, Wallace, W. Hamish B., Kelsey Thomas W.   +7 more
core   +1 more source

Activin B is produced early in antral follicular development and suppresses thecal androgen production [PDF]

, 2012
Little is known about the role of activin B during folliculogenesis. This study investigated the expression levels of activin/inhibin subunits (βA, βB, and α), steroid enzyme, and gonadotrophin receptors in theca (TC) and granulosa cells (GC) by QPCR and
Young, J M, McNeilly, A S, Henderson, S, Groome, N, Ludlow, H, Souza, C   +5 more
core   +1 more source

At Home Detection of Ovarian Health Biomarker in Menstruation Blood

Advanced Materials Technologies, EarlyView.
A lateral flow assay enables the detection of anti‐Müllerian hormone directly in unprocessed menstrual blood using silica‐gold nanoshells and smartphone‐assisted machine learning analysis. The platform supports decentralized, user‐operated testing in wearable and dipstick formats, highlighting the potential of menstrual blood as a non‐invasive matrix ...
Lucas Dosnon, Thomas Rduch, Salma Sherif Azer, Inge K. Herrmann   +3 more
wiley   +1 more source

Short-term culture of adult bovine ovarian tissues: chorioallantoic membrane (CAM) vs. traditional in vitro culture systems

Reproductive Biology and Endocrinology, 2018
Background A suitable culture system is important for follicle growth in adult bovine ovarian tissue. This study aimed to assess the avian chorioallantoic membrane (CAM) for short-term culture of adult bovine ovarian tissues compared with a traditional ...
Kylie Beck, Jaswant Singh, Mohammad Arshud Dar, Muhammad Anzar   +3 more
doaj   +1 more source

Zinc Exposure Causes Disulfidptosis to Induce Miscarriage by Up‐Regulating GATA1/METTL1/SLC7A11 Axis

Advanced Science, EarlyView.
Zn exposure up‐regulates GATA1, promoting GATA1‐mediated METTL1 and SLC7A11 transcription. It also enhances METTL1‐mediated m7G modification on SLC7A11 mRNA, increasing SLC7A11 mRNA stability. Ultimately, Zn exposure up‐regulates SLC7A11 at both transcriptional and post‐transcriptional levels, causing disulfidptosis. Knockdown of murine Slc7a11, Gata1,
Wenxin Huang, Yi Sun, Yanxin Wang, Haijun Yan, Xiaoping Yue, Weidong Wu, Xueyu Chen, Jinfang Zhang, Yanbing Lin, Qiong Lei, Nan Ji, Shuaishuai Xing, Liqin Zeng, Qingzheng Kang, Depeng Zhao, Geng Guo, Huidong Zhang   +16 more
wiley   +1 more source

Fractionation of Ovarian Follicles and in vitro Oocyte Maturation and Ovulation Assay of Ciona intestinalis Type A

Bio-Protocol, 2020
Ascidians are the closest living relatives of vertebrates (Delsuc et al., 2006; Satoh et al., 2014) and are important for the evolutionary study of the ovarian follicle development including oocyte maturation and ovulation.
Shin Matsubara, Akira Shiraishi, Tomohiro Osugi, Tsuyoshi Kawada, Honoo Satake   +4 more
doaj   +1 more source

Ovarian reserve in patients who have undergone endometriosis surgery [PDF]

Vojnosanitetski Pregled, 2018
Background/Aim. Endometriosis is a gynaecological disorder characterized by the presence of endometrial tissue outside the uterine cavity. The aim of this paper was to determine the effect of laparoscopic cystotomy and cystectomy on ovarian function, as ...
Džatić-Smiljković Olivera, Vasiljević Mladenko, Rudić Ivana, Vugdelić Jelena, Ristić Aleksandar, Vugdelić Rada   +5 more
doaj   +1 more source

Testosterone selectively increases primary follicles in ovarian cortex grafted onto embryonic chick membranes: relevance to polycystic ovaries

, 2008
Histological studies have demonstrated that polycystic ovaries (PCO) contain increased numbers of preantral follicles with a specific increase in primary follicles.
P Musonda, Musonda, P., Qureshi, A. I., Qureshi, AI, Mason, H. D., Nussey, S. S., Whitehead, S. A., Musonda, P, Mason, HD, Bano, G, S S Nussey, G Bano, Bano, G., S A Whitehead, H D Mason, Whitehead, SA, A I Qureshi, Nussey, SS   +17 more
core   +1 more source