Animal study links scream sound exposure to lower egg count in female rats —


Feminine rats uncovered to a scream sound could have diminished ovarian reserve and lowered fertility, in line with a small animal research printed within the Endocrine Society’s journal, Endocrinology.

Ovarian reserve is the reproductive potential left inside a lady’s two ovaries based mostly on the quantity and high quality of eggs. A girl is born with a finite variety of eggs and her physique can’t create any extra. Diminished ovarian reserve is the lack of regular reproductive potential within the ovaries as a consequence of a decrease depend or high quality of the remaining eggs.

“We examined the impact of stress on ovarian reserve utilizing a scream sound mannequin in rats,” stated Wenyan Xi, Ph.D., of the Second Affiliation Hospital of Xi’an Jiao Tong College in Xian, China. “We discovered that feminine rats uncovered to the scream sound had diminished ovarian reserve and decreased fertility.”

The researchers used a scream sound mannequin to research the impact of stress on ovarian reserve in feminine rats. They uncovered feminine rats to a scream sound for 3 weeks and analyzed the impact on their intercourse hormones, the quantity and high quality of their eggs and their means to get pregnant and have infants after mating.

They discovered the scream sound decreased the rats’ estrogen and Anti-Mullerian hormone ranges. Estrogen is a gaggle of hormones that play an essential position in development and reproductive improvement, and Anti-Mullerian hormone is a hormone made by the ovaries which helps kind reproductive organs. The scream sound additionally lowered the quantity and high quality of the ladies’s eggs and resulted in smaller litters.

“Based mostly on these findings, we propose stress could also be related to diminished ovarian reserve,” Xi stated. “You will need to decide an affiliation between power stress and ovarian reserve as a result of doing so could develop our appreciation of the restrictions of present medical interventions and supply beneficial perception into the reason for diminished ovarian reserve.”

Different authors of this research embody: Hui Mao, Haoyan Yao and Ruiting Shi of the Second Affiliation Hospital of Xi’an Jiao Tong College; and Zhiwei Cui of the First Affiliation Hospital of Xi’an Jiao Tong College in Xian, China.

The research acquired funding from the Pure Science Basis of Shaanxi Provincial Division of Training.

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