Maternal occupational exposure to endocrine-disrupting chemicals during pregnancy and semen parameters in adulthood: results of a nationwide cross-sectional study among Swiss conscripts

Autor: Luc Multigner, Rita Rahban, Serge Nef, M Istvan, Eric Stettler, Alfred Paul Senn, B Dananche, Ronan Garlantézec
Přispěvatelé: Institut de recherche en santé, environnement et travail (Irset), Université d'Angers (UA)-Université de Rennes (UR)-École des Hautes Études en Santé Publique [EHESP] (EHESP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Structure Fédérative de Recherche en Biologie et Santé de Rennes ( Biosit : Biologie - Santé - Innovation Technologique ), Université de Genève = University of Geneva (UNIGE), Swiss Centre for Applied Human Toxicology: SCAHT and the ‘Fondation privée des Hôpitaux Universitaires de Genève’, FABER Foundation, Swiss National Science Foundation (SNSF): NFP 50 ‘Endocrine Disruptors: Relevance to Humans, Animals and Ecosystems’, Medical Services of the Swiss Army (DDPS) and Media support, Université d'Angers (UA)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-École des Hautes Études en Santé Publique [EHESP] (EHESP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Structure Fédérative de Recherche en Biologie et Santé de Rennes ( Biosit : Biologie - Santé - Innovation Technologique ), University of Geneva [Switzerland]
Rok vydání: 2020
Předmět:
Adult
Male
congenital
hereditary
and neonatal diseases and abnormalities
Cross-sectional study
media_common.quotation_subject
[SDV]Life Sciences [q-bio]
Fertility
Semen
Endocrine Disruptors
endocrine disrupting
Endocrine Disruptors/toxicity
male infertility
Male infertility
03 medical and health sciences
Semen quality
fluids and secretions
0302 clinical medicine
Pregnancy
Environmental health
Occupational Exposure
medicine
Humans
ddc:576.5
Child
semen parameters
Ecosystem
Maternal Exposure/adverse effects
030304 developmental biology
media_common
0303 health sciences
030219 obstetrics & reproductive medicine
business.industry
Occupational Exposure/adverse effects
Rehabilitation
Confounding
Obstetrics and Gynecology
Odds ratio
medicine.disease
Confidence interval
Semen Analysis
Cross-Sectional Studies
Reproductive Medicine
Maternal Exposure
Female
business
Zdroj: Human Reproduction
Human Reproduction, 2021, 36 (7), pp.1948-1958. ⟨10.1093/humrep/deab034⟩
Human Reproduction, Oxford University Press (OUP), 2021, ⟨10.1093/humrep/deab034⟩
Human Reproduction, Vol. 36, No 7 (2021) pp. 1948-1958
ISSN: 1460-2350
0268-1161
DOI: 10.1093/humrep/deab034⟩
Popis: STUDY QUESTION Is there a relationship between maternal occupational exposure to endocrine-disrupting chemicals (EDCs) during pregnancy and the semen quality of their sons? SUMMARY ANSWER Our results suggest an association between maternal occupational exposure to potential EDCs, especially to pesticides, phthalates and heavy metals, and a decrease in several semen parameters. WHAT IS KNOWN ALREADY Sexual differentiation, development and proper functioning of the reproductive system are largely dependent on steroid hormones. Although there is some animal evidence, studies on maternal exposure to EDCs during pregnancy and its effect on the semen quality of sons are scarce and none have focused on maternal occupational exposure. STUDY DESIGN, SIZE, DURATION A cross-sectional study aiming to evaluate semen quality was carried out among Swiss conscripts aged 18 to 22 years between 2005 and 2017. PARTICIPANTS/MATERIALS, SETTING, METHODS Conscript and parent questionnaires were completed prior to the collection of a semen sample. Semen parameters were categorised according to the guidelines of the World Health Organization (WHO). Data on maternal employment during pregnancy were provided by the parent questionnaire. Maternal occupational exposure to potential EDC categories was defined using a job-exposure matrix (JEM). Logistic regressions were used to analyse the relationship between maternal occupational exposure to EDCs and each semen parameter adjusted for potential confounding factors. Results are presented using odds ratios and 95% confidence intervals. MAIN RESULTS AND THE ROLE OF CHANCE In total, 1,737 conscripts provided a conscript and parent questionnaire, as well as a semen sample; among these 1,045 of their mothers worked during pregnancy. Our study suggests an association between occupational exposure of mothers during pregnancy to potential EDCs and low semen volume and total sperm count, particularly for exposure to pesticides (OR 2.07, 95% CI 1.11–3.86 and OR 2.14, 95% CI 1.05–4.35), phthalates (OR 1.92, 95% CI 1.10–3.37 and OR 1.89, 95% CI 1.01–3.55), and heavy metals (OR 2.02, 95% CI 1.14–3.60 and OR 2.29, 95% CI 1.21–4.35). Maternal occupational exposure to heavy metals was additionally associated with a low sperm concentration (OR 1.89, 95% CI 1.06–3.37). LIMITATIONS, REASONS FOR CAUTION Several limitations should be noted, such as the indirect method for maternal occupational exposure assessment during the pregnancy (JEM) and the cross-sectional design of the study. WIDER IMPLICATIONS OF THE FINDINGS Our observations reinforce the need to inform pregnant women of potential hazards during pregnancy that could impair their child’s fertility. Additional studies are needed to confirm the involvement of EDCs. STUDY FUNDING/COMPETING INTEREST(S) This work was supported by the Swiss Centre for Applied Human Toxicology: SCAHT and the ‘Fondation privée des Hôpitaux Universitaires de Genève’. The collection of human biological material used for this study was supported by the FABER Foundation, the Swiss National Science Foundation (SNSF): NFP 50 ‘Endocrine Disruptors: Relevance to Humans, Animals and Ecosystems’, the Medical Services of the Swiss Army (DDPS) and Medisupport. The authors declare they have no competing financial interests. TRIAL REGISTRATION NUMBER N/A
Databáze: OpenAIRE
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