Results 71 to 80 of about 563,405 (253)

Follitropin (FSH) and a phorbol ester stimulate the phosphorylation of the FSH receptor in intact cells.

Journal of Biological Chemistry, 1994
Using a cell line stably transfected with the rat follitropin (FSH) receptor cDNA we demonstrate that the FSH receptor becomes phosphorylated when cells are exposed to FSH. Since binding of FSH to its receptor results in an increase in cAMP and inositol phosphate accumulation, we examined the potential involvement of protein kinase A and C in mediating
Quintana, J, Hipkin, Rw, Ascoli, M, Sanchezyague, J   +3 more
openaire   +3 more sources

Young bodies, aging ovaries: A systematic review and meta‐synthesis of women's perspectives on spontaneous premature ovarian insufficiency

International Journal of Gynecology &Obstetrics, EarlyView.
Abstract Objectives Spontaneous premature ovarian insufficiency (POI) is a condition characterized by the cessation of ovarian function before age 40, unrelated to medical interventions. It affects approximately 3.5% of women worldwide and can result in significant emotional, physical, and social consequences.
Maria Patricia Roman, Shaurya Aggarwal, Stergios K. Doumouchtsis   +2 more
wiley   +1 more source

The extragonadal biology of gonadotropin hormones: should we rename these?

Endocrine Connections
Over recent years, gonadotropins and their receptors have been shown to exert non-traditional actions that bypass the classical hypothalamic–pituitary–gonadal axis.
Se-Min Kim, Funda Korkmaz, Sorang Kang, Fazilet Sen, Steven L Sims, Judit Gimenez-Roig, Uliana Cheliadinova, Darya Vasilyeva, Orly Barak, Susan Hutchison, Anne Macdonald, Rauf Latif, Ki Goosens, Tal Frolinger, Anusha Pallapati, Satish Rojekar, Vitaly Ryu, Daria Lizneva, Tony Yuen, Mone Zaidi   +19 more
doaj   +1 more source

Expression of the gonadotropin receptors during follicular development

Reproductive Medicine and Biology, 2018
Background Gonadotropins induce follicular development that leads to ovulation and luteinization. In women, the level of gonadotropins, along with the expression of their receptors, changes dynamically throughout the menstrual cycle.
Hiroshi Kishi, Yoshikazu Kitahara, Fumiharu Imai, Kohshiro Nakao, Hiroto Suwa   +4 more
doaj   +1 more source

The effect of ovarian stimulation protocol on follicular asynchrony during in vitro fertilization – A retrospective cohort study

International Journal of Gynecology &Obstetrics, EarlyView.
Abstract Objective To examine the effect of controlled ovarian stimulation (COS) protocol on follicular synchrony in a subsequent in vitro fertilization (IVF) cycle in patients whose previous cycle was canceled due to asynchrony. Methods A single‐center retrospective‐cohort study (January 2018–March 2024), including women undergoing IVF who had: (1) a ...
Alyssa Hochberg, Maria Hincapie, Uri Amikam, Nir Kugelman, William Buckett, Shauna Reinblatt   +5 more
wiley   +1 more source

Identification of differential gene expression in in vitro FSH treated pig granulosa cells using suppression subtractive hybridization

Reproductive Biology and Endocrinology, 2006
FSH, which binds to specific receptors on granulosa cells in mammals, plays a key role in folliculogenesis. Its biological activity involves stimulation of intercellular communication and upregulation of steroidogenesis, but the entire spectrum of the ...
Tosser-Klopp G, Dehais P, Frappart PO, Bonnet A, Hatey F   +4 more
doaj   +1 more source

Hormone therapy (HT) in women with premature ovarian insufficiency or early menopause: Time to think of a new paradigm for healthy aging. A joint FIGO and IMS position paper

International Journal of Gynecology &Obstetrics, EarlyView.
Abstract Premature ovarian insufficiency (POI) and early menopause (EM) affect millions of women worldwide. Compared with normal menopause, they confer a longer duration of estrogen deficiency and are associated not only with a shorter lifespan, but with a reduced healthspan, owing to an increased risk of cardiovascular, skeletal, cognitive and ...
Chiara Benedetto, Suvarna S. Khadilkar, Rossella E. Nappi, Andrea R. Genazzani, Federica Frezet, Laura Cucinella, Hema Divakar, Panagiotis Anagnostis, Nick Panay   +8 more
wiley   +1 more source

Gonadotropin Levels in Ovarian Cyst Fluids: A Predictor of Malignancy?

The International Journal of Biological Markers, 1998
Gonadotropins can stimulate ovarian cancer growth in cell cultures. Corresponding LH/hCG receptors have been demonstrated in ovarian cancer. However, reduction of elevated serum gonadotropins by GnRH analogs in ovarian cancer patients did not lead to ...
S. Krämer, M. Leeker, W. Jäger
doaj   +1 more source

Regulatory Actions of LH and Follicle-Stimulating Hormone on Breast Cancer Cells and Mammary Tumors in Rats

Frontiers in Endocrinology, 2018
Gonadotrophins are mainly known to influence the body through the formation of gonadal steroids. However, receptors for luteinizing hormone (LH) and follicular-stimulating hormone (FSH) are present in a set of extra-gonadal tissues in humans and animals,
Angel Matias Sanchez, Angel Matias Sanchez, Marina Ines Flamini, Marina Ines Flamini, Sara Zullino, Eleonora Russo, Andrea Giannini, Paolo Mannella, Antonio Giuseppe Naccarato, Andrea Riccardo Genazzani, Tommaso Simoncini   +10 more
doaj   +1 more source

Comparison of Sensitivity of FSH Levels and Vaginal pH in Diagnosis of Menopause, Estradiol Levels and Menopausal Signs

Majallah-i Dānishgāh-i ’Ulūm-i Pizishkī-i Shahīd Ṣadūqī Yazd, 2011
Introduction: As immunoassay and Eliza are used nowadays for checking levels of FSH and estradiol, the role of vaginal acidity as a sign of responding vaginal cells to estrogen has been forgotten, although its role in this field is known.
N Zafarqandi, M Rabiei, A Davati
doaj