Follicle Stimulating Hormone (FSH) Glycosylation in Women: Effect of Estradiol

Summary

This clinical trial is an investigational research study to determine the ratio of glycosylated FSH21/FSH24 in premenopausal women and postmenopausal women as well as determining if estradiol can increase this ratio in postmenopausal women.

Timeline

Start

2019-07-03

Primary completion

2019-11

Completion

2020-01

Publications

• Background Hunzicker-Dunn ME, Lopez-Biladeau B, Law NC, Fiedler SE, Carr DW, Maizels ET. PKA and GAB2 play central roles in the FSH signaling pathway to PI3K and AKT in ovarian granulosa cells. Proc Natl Acad Sci U S A. 2012 Oct 30;109(44):E2979-88. doi: 10.1073/pnas.1205661109. Epub 2012 Oct 8.
• Background Santoro N, Randolph JF Jr. Reproductive hormones and the menopause transition. Obstet Gynecol Clin North Am. 2011 Sep;38(3):455-66. doi: 10.1016/j.ogc.2011.05.004.
• Background Bousfield GR, Butnev VY, Butnev VY, Hiromasa Y, Harvey DJ, May JV. Hypo-glycosylated human follicle-stimulating hormone (hFSH(21/18)) is much more active in vitro than fully-glycosylated hFSH (hFSH(24)). Mol Cell Endocrinol. 2014 Feb 15;382(2):989-97. doi: 10.1016/j.mce.2013.11.008. Epub 2013 Dec 1.
• Background Bousfield GR, Butnev VY, Rueda-Santos MA, Brown A, Hall AS, Harvey DJ. Macro- and Micro-heterogeneity in Pituitary and Urinary Follicle-Stimulating Hormone Glycosylation. J Glycomics Lipidomics. 2014;4:1000125. doi: 10.4172/2153-0637.1000125.
• Background Wang H, May J, Butnev V, Shuai B, May JV, Bousfield GR, Kumar TR. Evaluation of in vivo bioactivities of recombinant hypo- (FSH21/18) and fully- (FSH24) glycosylated human FSH glycoforms in Fshb null mice. Mol Cell Endocrinol. 2016 Dec 5;437:224-236. doi: 10.1016/j.mce.2016.08.031. Epub 2016 Aug 22.
• Background Klein NA, Illingworth PJ, Groome NP, McNeilly AS, Battaglia DE, Soules MR. Decreased inhibin B secretion is associated with the monotropic FSH rise in older, ovulatory women: a study of serum and follicular fluid levels of dimeric inhibin A and B in spontaneous menstrual cycles. J Clin Endocrinol Metab. 1996 Jul;81(7):2742-5. doi: 10.1210/jcem.81.7.8675606.
• Background Andreasson B, Bostofte E. Influence of 2 mg estradiol-17 beta on circulating FSH, LH, total and unconjugated estradiol levels in post-menopausal women. Acta Obstet Gynecol Scand. 1981;60(6):555-8. doi: 10.3109/00016348109155485.
• Background Bunyavejchevin S, Panthong C, Limpaphayom KK. Serum estradiol and follicle-stimulating hormone levels in Thai women post total abdominal hysterectomy and bilateral oophorectomy using oral 17 beta-estradiol. J Med Assoc Thai. 2002 Jan;85(1):58-62.
• Background Fahraeus L, Larsson-Cohn U. Oestrogens, gonadotrophins and SHBG during oral and cutaneous administration of oestradiol-17 beta to menopausal women. Acta Endocrinol (Copenh). 1982 Dec;101(4):592-6. doi: 10.1530/acta.0.1010592.
• Background Robyn C, Vekemans M. Influence of low dose oestrogen on circulating prolactin. LH and FSH levels in post-menopausal women. Acta Endocrinol (Copenh). 1976 Sep;83(1):9-14. doi: 10.1530/acta.0.0830009.
• Background Wide L, Naessen T. 17 beta-oestradiol counteracts the formation of the more acidic isoforms of follicle-stimulating hormone and luteinizing hormone after menopause. Clin Endocrinol (Oxf). 1994 Jun;40(6):783-9. doi: 10.1111/j.1365-2265.1994.tb02513.x.
• Background Bousfield GR, Butnev VY, Walton WJ, Nguyen VT, Huneidi J, Singh V, Kolli VS, Harvey DJ, Rance NE. All-or-none N-glycosylation in primate follicle-stimulating hormone beta-subunits. Mol Cell Endocrinol. 2007 Jan 2;260-262:40-8. doi: 10.1016/j.mce.2006.02.017. Epub 2006 Oct 31.
• Background Archer DF, Pickar JH, MacAllister DC, Warren MP. Transdermal estradiol gel for the treatment of symptomatic postmenopausal women. Menopause. 2012 Jun;19(6):622-9. doi: 10.1097/gme.0b013e31823b8867.

Drugs

Indications

No indication recorded.