Linda G Kahn1, Elizabeth M Widen2, Teresa Janevic3, Nadine Straka4, Xinhua Liu5, Piera M Cirillo6, Barbara A Cohn6, Germaine M Buck Louis7, Pam Factor-Litvak8. 1. From the Department of Pediatrics, New York University School of Medicine, New York, NY. 2. Department of Nutritional Sciences, College of Natural Sciences, The University of Texas at Austin, Austin, TX. 3. Department of Obstetrics, Gynecology, and Reproductive Science, Icahn School of Medicine at Mount Sinai, New York, NY. 4. Department of Pediatrics, Boston Children's Hospital, Boston, MA. 5. Department of Biostatistics, Mailman School of Public Health, Columbia University, New York, NY. 6. Child Health and Development Studies, Center for Research on Women's and Children's Health, Public Health Institute, Berkeley, CA. 7. Division of Intramural Population Health Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Department of Health and Human Services, Rockville, MD. 8. Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, NY.
Abstract
BACKGROUND: Studies of body mass index and semen quality have reported mixed results, but almost all were cross-sectional and many were conducted in selected populations. Longitudinal studies in population-based cohorts are necessary to identify how timing and duration of excess adiposity may affect semen quality. METHODS: In 193 members of the Child Health and Development Studies birth cohort, we examined associations of birth weight and adiposity at six time points spanning early childhood and adulthood with sperm concentration, motility, and morphology at mean age 44 years, as well as with corresponding 2010 World Health Organization (WHO) subfertility reference levels. RESULTS: Birth weight for gestational age percentile was positively associated with square-root sperm concentration (regression coefficient B [95% confidence interval] = 0.02 × 103 sperm/ml [0.004, 0.04]). Overweight/obesity in men's 20s was associated with lower percent progressive motility (B =-5.2 [-9.9, -0.63]), higher odds of low motility (odds ratio (OR) = 2.4 [1.3, 4.4]), and higher odds of poor morphology (OR = 1.9 [0.94, 3.8]). Those who were overweight/obese in their 20s were also more likely to meet two or three WHO subfertility criteria (OR = 3.9 [1.6, 9.4]) compared with normal-weight men. Each additional adult decade in which a participant was overweight/obese was associated with higher odds of low motility (OR = 1.3 [0.96, 1.6]) and higher odds of meeting two or three WHO subfertility criteria (OR = 1.5 [1.0, 2.2]). CONCLUSIONS: In our data, associations among adiposity and sperm concentration, motility, and morphology varied according to timing and duration of exposure, potentially reflecting different biological mechanisms that influence these semen parameters.
BACKGROUND: Studies of body mass index and semen quality have reported mixed results, but almost all were cross-sectional and many were conducted in selected populations. Longitudinal studies in population-based cohorts are necessary to identify how timing and duration of excess adiposity may affect semen quality. METHODS: In 193 members of the Child Health and Development Studies birth cohort, we examined associations of birth weight and adiposity at six time points spanning early childhood and adulthood with sperm concentration, motility, and morphology at mean age 44 years, as well as with corresponding 2010 World Health Organization (WHO) subfertility reference levels. RESULTS: Birth weight for gestational age percentile was positively associated with square-root sperm concentration (regression coefficient B [95% confidence interval] = 0.02 × 103 sperm/ml [0.004, 0.04]). Overweight/obesity in men's 20s was associated with lower percent progressive motility (B =-5.2 [-9.9, -0.63]), higher odds of low motility (odds ratio (OR) = 2.4 [1.3, 4.4]), and higher odds of poor morphology (OR = 1.9 [0.94, 3.8]). Those who were overweight/obese in their 20s were also more likely to meet two or three WHO subfertility criteria (OR = 3.9 [1.6, 9.4]) compared with normal-weight men. Each additional adult decade in which a participant was overweight/obese was associated with higher odds of low motility (OR = 1.3 [0.96, 1.6]) and higher odds of meeting two or three WHO subfertility criteria (OR = 1.5 [1.0, 2.2]). CONCLUSIONS: In our data, associations among adiposity and sperm concentration, motility, and morphology varied according to timing and duration of exposure, potentially reflecting different biological mechanisms that influence these semen parameters.
Authors: N Sermondade; C Faure; L Fezeu; A G Shayeb; J P Bonde; T K Jensen; M Van Wely; J Cao; A C Martini; M Eskandar; J E Chavarro; S Koloszar; J M Twigt; C H Ramlau-Hansen; E Borges; F Lotti; R P M Steegers-Theunissen; B Zorn; A J Polotsky; S La Vignera; B Eskenazi; K Tremellen; E V Magnusdottir; I Fejes; S Hercberg; R Lévy; S Czernichow Journal: Hum Reprod Update Date: 2012-12-12 Impact factor: 15.610
Authors: Frank M Schmidt; Julia Weschenfelder; Christian Sander; Juliane Minkwitz; Julia Thormann; Tobias Chittka; Roland Mergl; Kenneth C Kirkby; Mathias Faßhauer; Michael Stumvoll; Lesca M Holdt; Daniel Teupser; Ulrich Hegerl; Hubertus Himmerich Journal: PLoS One Date: 2015-03-17 Impact factor: 3.240
Authors: Carrie V Breton; Remy Landon; Linda G Kahn; Michelle Bosquet Enlow; Alicia K Peterson; Theresa Bastain; Joseph Braun; Sarah S Comstock; Cristiane S Duarte; Alison Hipwell; Hong Ji; Janine M LaSalle; Rachel L Miller; Rashelle Musci; Jonathan Posner; Rebecca Schmidt; Shakira F Suglia; Irene Tung; Daniel Weisenberger; Yeyi Zhu; Rebecca Fry Journal: Commun Biol Date: 2021-06-22