P Sengupta1,2, E Borges3, S Dutta4, E Krajewska-Kulak2. 1. 1 Physiology Unit, Faculty of Medicine, Lincoln University College, Malaysia. 2. 2 Integrated Medical Care, Medical University of Bialystok, Bialystok, Poland. 3. 3 Fertility Medical Group, Avenida Brigadeiro Luiz Antônio, São Paulo, Brazil. 4. 4 Faculty of Science, Lincoln University College, Malaysia.
Abstract
PURPOSE: To investigate whether the sperm concentration of European men is deteriorating over the past 50 years of time. MATERIALS AND METHODS: We analysed the data published in English language articles in the past 50 years in altering sperm concentration in European men. RESULTS: A time-dependent decline of sperm concentration ( r = -0.307, p = 0.02) in the last 50 years and an overall 32.5% decrease in mean sperm concentration was noted. CONCLUSION: This comprehensive, evidence-based meta-analysis concisely presents the evidence of decreased sperm concentration in European male over the past 50 years to serve the scientific research zone related to male reproductive health.
PURPOSE: To investigate whether the sperm concentration of European men is deteriorating over the past 50 years of time. MATERIALS AND METHODS: We analysed the data published in English language articles in the past 50 years in altering sperm concentration in European men. RESULTS: A time-dependent decline of sperm concentration ( r = -0.307, p = 0.02) in the last 50 years and an overall 32.5% decrease in mean sperm concentration was noted. CONCLUSION: This comprehensive, evidence-based meta-analysis concisely presents the evidence of decreased sperm concentration in European male over the past 50 years to serve the scientific research zone related to male reproductive health.
Authors: Diana S Chu; Thomas Müller-Reichert; Gunar Fabig; Robert Kiewisz; Norbert Lindow; James A Powers; Vanessa Cota; Luis J Quintanilla; Jan Brugués; Steffen Prohaska Journal: Elife Date: 2020-03-10 Impact factor: 8.140