How Brain Controls Ovarian Function (IMAGE) Nagoya University Caption This study has found that KNDy neurons are key to controlling ovarian function in mammals. These neurons express signalling molecules (peptides) in the brain that stimulate pulses of a hormone (the gonadotropin-releasing hormone (GnRH)) which in turn enable the release of gonadotropins that stimulate the growth of ovarian follicles, which leads to fertility. Credit Sho Nakamura Usage Restrictions This image may only be used with reports of this research. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.