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Press Release

Xytex Standards Support Scientific Breakthrough Regarding Stressed Out Sperm

Posted on: 19 Mar 18

A recent study, documented in a December 2017 edition of Science News, uncovered how stress changes the genetic payload of a male’s sperm. Although the discovery that stress could be passed from one generation to the next through the father’s sperm had previously been documented, this is the first time that researchers have been able to witness the way in which stress is transferred.

This study, which used mice, focused on the caput epididymis, the location within the male reproductive system where sperm cells mature. As test subjects were presented with alarming stimuli for extended periods of time, their sperm showed a consistently altered genetic payload in their RNA, producing offspring with an overabundance of the stress hormone corticosterone.

“At Xytex, we believe it’s important to continuously evolve our understanding of every aspect of genetics—even at the molecular level—to deliver our clients the highest quality product,” said Dr. Jan Schöler, president of Xytex. “That’s why we operate under the guidance of a highly experienced medical board composed of geneticists, endocrinologists and industry experts as well as subject sperm samples to rigorous testing.”

Xytex has provided top quality donor sperm for more than 40 years. With the highest quality commitment in the industry, we increase a client’s chances of success with fewer attempts. To prove our commitment, Xytex stays on the cutting-edge of scientific advancement regarding sperm, helping us enhance our standards to offer clients donor sperm that is the industry’s most selective and most successful.

About Xytex:

Xytex is a global provider of cryoservices and has provided donor sperm and tissue services for patients’ reproductive needs since 1975. Xytex continues to utilize the latest technology and recommended procedures to cryopreserve cells and tissue—making them readily available for use when needed. For more information, visit

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Business Wire

Last updated on: 19/03/2018

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