Does air pollution exposure affect semen quality? Evidence from a systematic review and meta-analysis of 93,996 Chinese men

BackgroundAir pollution may impair male fertility, but it remains controversial whether air pollution affects semen quality until now.ObjectivesWe undertake a meta-analysis to explore potential impacts of six pollutants exposure during the entire window (0–90 days prior to ejaculation) and critical...

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Main Authors: Junjie Liu, Yanpeng Dai, Runqing Li, Jiayi Yuan, Quanxian Wang, Linkai Wang
Format: Article
Language:English
Published: Frontiers Media S.A. 2023-08-01
Series:Frontiers in Public Health
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fpubh.2023.1219340/full
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author Junjie Liu
Yanpeng Dai
Runqing Li
Jiayi Yuan
Quanxian Wang
Linkai Wang
author_facet Junjie Liu
Yanpeng Dai
Runqing Li
Jiayi Yuan
Quanxian Wang
Linkai Wang
author_sort Junjie Liu
collection DOAJ
description BackgroundAir pollution may impair male fertility, but it remains controversial whether air pollution affects semen quality until now.ObjectivesWe undertake a meta-analysis to explore potential impacts of six pollutants exposure during the entire window (0–90 days prior to ejaculation) and critical windows (0–9, 10–14, and 70–90 days prior to ejaculation) on semen quality.MethodsSeven databases were retrieved for original studies on the effects of six pollutants exposure for 90 days prior to ejaculation on semen quality. The search process does not limit the language and search date. We only included original studies that reported regression coefficients (β) with 95% confidence intervals (CIs). The β and 95% CIs were pooled using the DerSimonian-Laird random effect models.ResultsPM2.5 exposure was related with decreased total sperm number (10–14 lag days) and total motility (10–14, 70–90, and 0–90 lag days). PM10 exposure was related with reduced total sperm number (70–90 and 0–90 lag days) and total motility (0–90 lag days). NO2 exposure was related with reduced total sperm number (70–90 and 0–90 lag days). SO2 exposure was related with declined total motility (0–9, 10–14, 0–90 lag days) and total sperm number (0–90 lag days).ConclusionAir pollution affects semen quality making it necessary to limit exposure to air pollution for Chinese men. When implementing protective measures, it is necessary to consider the key period of sperm development.
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spelling doaj.art-6be047e686e14a1dbd9fef29b3b8cd8a2023-08-03T23:11:52ZengFrontiers Media S.A.Frontiers in Public Health2296-25652023-08-011110.3389/fpubh.2023.12193401219340Does air pollution exposure affect semen quality? Evidence from a systematic review and meta-analysis of 93,996 Chinese menJunjie Liu0Yanpeng Dai1Runqing Li2Jiayi Yuan3Quanxian Wang4Linkai Wang5Henan Human Sperm Bank, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, ChinaDepartment of Clinical Laboratory, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, ChinaThe Neonatal Screening Center in Henan Province, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, ChinaThe Neonatal Screening Center in Henan Province, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, ChinaHenan Human Sperm Bank, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, ChinaHenan Human Sperm Bank, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, ChinaBackgroundAir pollution may impair male fertility, but it remains controversial whether air pollution affects semen quality until now.ObjectivesWe undertake a meta-analysis to explore potential impacts of six pollutants exposure during the entire window (0–90 days prior to ejaculation) and critical windows (0–9, 10–14, and 70–90 days prior to ejaculation) on semen quality.MethodsSeven databases were retrieved for original studies on the effects of six pollutants exposure for 90 days prior to ejaculation on semen quality. The search process does not limit the language and search date. We only included original studies that reported regression coefficients (β) with 95% confidence intervals (CIs). The β and 95% CIs were pooled using the DerSimonian-Laird random effect models.ResultsPM2.5 exposure was related with decreased total sperm number (10–14 lag days) and total motility (10–14, 70–90, and 0–90 lag days). PM10 exposure was related with reduced total sperm number (70–90 and 0–90 lag days) and total motility (0–90 lag days). NO2 exposure was related with reduced total sperm number (70–90 and 0–90 lag days). SO2 exposure was related with declined total motility (0–9, 10–14, 0–90 lag days) and total sperm number (0–90 lag days).ConclusionAir pollution affects semen quality making it necessary to limit exposure to air pollution for Chinese men. When implementing protective measures, it is necessary to consider the key period of sperm development.https://www.frontiersin.org/articles/10.3389/fpubh.2023.1219340/fullsemen analysisair pollutionparticulate mattermeta-analysissystematic review
spellingShingle Junjie Liu
Yanpeng Dai
Runqing Li
Jiayi Yuan
Quanxian Wang
Linkai Wang
Does air pollution exposure affect semen quality? Evidence from a systematic review and meta-analysis of 93,996 Chinese men
Frontiers in Public Health
semen analysis
air pollution
particulate matter
meta-analysis
systematic review
title Does air pollution exposure affect semen quality? Evidence from a systematic review and meta-analysis of 93,996 Chinese men
title_full Does air pollution exposure affect semen quality? Evidence from a systematic review and meta-analysis of 93,996 Chinese men
title_fullStr Does air pollution exposure affect semen quality? Evidence from a systematic review and meta-analysis of 93,996 Chinese men
title_full_unstemmed Does air pollution exposure affect semen quality? Evidence from a systematic review and meta-analysis of 93,996 Chinese men
title_short Does air pollution exposure affect semen quality? Evidence from a systematic review and meta-analysis of 93,996 Chinese men
title_sort does air pollution exposure affect semen quality evidence from a systematic review and meta analysis of 93 996 chinese men
topic semen analysis
air pollution
particulate matter
meta-analysis
systematic review
url https://www.frontiersin.org/articles/10.3389/fpubh.2023.1219340/full
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