Gonadotropin Type in Ovarian Stimulation

Summary

A key challenge facing reproductive biologists is the integration of the knowledge about oocyte-secreted factors into coherent physiological mechanisms of how oocytes govern folliculogenesis, cumulus cell function, and oocyte and embryo development. Although key oocyte-secreted factors have been identified, understanding their modes of action is complicated by multiple interactions between maternal and oocyte signaling molecules, as well as the constantly changing state of physical interactions between the oocyte and its companion somatic cells during folliculogenesis. Thus, the investigators study aimed to determine if there is any relationship between different gonadotropin preparations and oocyte-secreted factor secretion, the endocrine pattern in follicular fluid, and the apoptotic rate in cumulus cells during controlled ovarian stimulation.

Timeline

Start

2009-04

Primary completion

2012-09

Completion

2012-12

Publications

• Results Gilchrist RB, Lane M, Thompson JG. Oocyte-secreted factors: regulators of cumulus cell function and oocyte quality. Hum Reprod Update. 2008 Mar-Apr;14(2):159-77. doi: 10.1093/humupd/dmm040. Epub 2008 Jan 5.
• Results Smitz J, Andersen AN, Devroey P, Arce JC; MERIT Group. Endocrine profile in serum and follicular fluid differs after ovarian stimulation with HP-hMG or recombinant FSH in IVF patients. Hum Reprod. 2007 Mar;22(3):676-87. doi: 10.1093/humrep/del445. Epub 2006 Nov 16.
• Results Orisaka M, Orisaka S, Jiang JY, Craig J, Wang Y, Kotsuji F, Tsang BK. Growth differentiation factor 9 is antiapoptotic during follicular development from preantral to early antral stage. Mol Endocrinol. 2006 Oct;20(10):2456-68. doi: 10.1210/me.2005-0357. Epub 2006 Jun 1.

Drugs

Indications