Effects of temperature anomaly on sperm quality: A multi-center study of 33,234 men.

ABSTRACT:

Backgrounds

Global fertility rates continue to decline and sperm quality is a prime factor affecting male fertility. Both extreme cold and heat have been demonstrated to be associated with decreased sperm quality, but no epidemiological studies have considered human adaptation to long-term temperature. Our aim was to conduct a multi-center retrospective cohort study to investigate exposure-response relationship between temperature anomaly (TA) that deviate from long-term climate patterns and sperm quality.

Methods

A total of 78,952 semen samples measured in 33,234 donors from 6 provincial human sperm banks in China were collected. This study considered heat and cold acclimatization to prolonged exposure in humans and explored the exposure-response relationship between TAs an

SUBMITTER: Xiao L 

PROVIDER: S-EPMC10907732 | biostudies-literature | 2024 Mar

REPOSITORIES: biostudies-literature