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Sleep duration may affect the integrity of sperm DNA

Date:
October 16, 2017
Source:
Wiley
Summary:
A new study found a link between sleep duration and a measure of chromosomal health in sperm. In the study of 2020 semen samples provided by 796 male volunteers from colleges in Chongqing (China) from 2013 to 2015, volunteers with more than 9 hours per day of sleep and those with 6.5 hours or less per day sleep had 41% and 30% lower High DNA Stainability —- an index that represents the proportion of sperm with abnormal chromatin —- than did volunteers with 7 to 7.5 hours per day of sleep.
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A new study found a link between sleep duration and a measure of chromosomal health in sperm. The findings are published in the Journal of Sleep Research.

In the study of 2020 semen samples provided by 796 male volunteers from colleges in Chongqing (China) from 2013 to 2015, volunteers with more than 9 hours per day of sleep and those with 6.5 hours or less per day sleep had 41% and 30% lower High DNA Stainability -- an index that represents the proportion of sperm with abnormal chromatin -- than did volunteers with 7 to 7.5 hours per day of sleep. Chromatin is a complex of DNA and proteins that forms chromosomes.

"This is new information after our previous finding that sleep duration has an inverse U-shaped association with semen volume and total sperm count. In the previous study, we found that these two semen parameters were highest when sleep is 7.0 to 7.5 hours per day, and either longer or shorter sleep was associated with the decrease of the two semen parameters.," said Dr. Jia Cao, co-author of the study.


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Materials provided by Wiley. Note: Content may be edited for style and length.


Journal Reference:

  1. Xiaogang Wang, Qing Chen, Peng Zou, Taixiu Liu, Min Mo, Huan Yang, Niya Zhou, Lei Sun, Hongqiang Chen, Xi Ling, Kaige Peng, Lin Ao, Huifang Yang, Jia Cao, Zhihong Cui. Sleep duration is associated with sperm chromatin integrity among young men in Chongqing, China. Journal of Sleep Research, 2017; DOI: 10.1111/jsr.12615

Cite This Page:

Wiley. "Sleep duration may affect the integrity of sperm DNA." ScienceDaily. ScienceDaily, 16 October 2017. <www.sciencedaily.com/releases/2017/10/171016083201.htm>.
Wiley. (2017, October 16). Sleep duration may affect the integrity of sperm DNA. ScienceDaily. Retrieved June 21, 2024 from www.sciencedaily.com/releases/2017/10/171016083201.htm
Wiley. "Sleep duration may affect the integrity of sperm DNA." ScienceDaily. www.sciencedaily.com/releases/2017/10/171016083201.htm (accessed June 21, 2024).

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