Related Experiment Video
Updated: Jul 14, 2026

In Vitro Culture Strategy for Oocytes from Early Antral Follicle in Cattle
Published on: July 8, 2020
Controlled natural cycle IVF: a novel approach for a dominant follicle during an in-vitro maturation cycle
Isaac Jacques Kadoch1, Renato Fanchin, Nelly Frydman
1Department of Obstetrics and Gynecology, Antoine Béclère Hospital (AP-HP), 157 rue de la Porte de Trivaux, 92140 Clamart Cedex. ij.kadoch@umontreal.ca
Abstract:
The objective of this retrospective analysis is to evaluate whether patients developing a dominant follicle in an in-vitro maturation (IVM) programme can be included in a natural cycle IVF (nIVF) programme. In a university teaching hospital, a total of 38 patients with polycystic ovarian syndrome were treated by metformin before undergoing an IVM cycle. Controlled nIVF was performed on seven patients with a dominant follicle. This paper reports three ongoing pregnancies from five embryo transfers in the latter group. Hence, nIVF can be a novel approach for women developing a dominant follicle during an IVM cycle.
Related Concept Videos
In Vitro Fertilization
The IVF process begins with ovarian stimulation, during which reproductive endocrinologists prescribe hormonal medications to stimulate the ovaries to produce multiple eggs instead of the single...
Ovarian Cycle
Hormonal Control of the Ovarian Cycle
Before puberty, the hypothalamus releases GnRH in a low frequency, low amplitude pulsatile manner. This along with the immature hypothalamic-pituitary-gonadal axis activity, results in low estrogen levels and the absence of a fully functional ovarian cycle. At puberty, GnRH secretion increases in both frequency and...
Oogenesis
Meiosis II
Infertility in Females
Endometriosis, a condition characterized by abnormal growth of endometrial...
