Diurnal rhythm of human semen quality: analysis of large-scale human sperm bank data and timing-controlled laboratory study.

ABSTRACT:

Study question

Can we identify diurnal oscillations in human semen parameters as well as peak times of semen quality?

Summary answer

Human semen parameters show substantial diurnal oscillation, with most parameters reaching a peak between 1100 and 1500 h.

What is known already

A circadian clock appears to regulate different physiological functions in various organs, but it remains controversial whether diurnal rhythms occur in human semen parameters.

Study design, size, duration

The medical record of a provincial human sperm bank (HSB) with 33 430 semen samples collected between 0800 and 1700 h from 1 March 2010 to 8 July 2015 was used to analyze variation in semen parameters among time points. A laboratory study was conducted to collect semen samples (n = 36)

SUBMITTER: Liu K 

PROVIDER: S-EPMC9340113 | biostudies-literature | 2022 Jul

REPOSITORIES: biostudies-literature