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, Chelin Jamie Hu College of Nursing, University of New Mexico , Albuquerque, New Mexico 87106, USA Search for other works by this author on: Oxford Academic Marcus A Garcia College of Pharmacy, University of New Mexico , Akbuquerque, New Mexico 87106, USA Search for other works by this author on: Oxford Academic Alexander Nihart College of Pharmacy, University of New Mexico , Akbuquerque, New Mexico 87106, USA Search for other works by this author on: Oxford Academic Rui Liu College of Pharmacy, University of New Mexico , Akbuquerque, New Mexico 87106, USA Search for other works by this author on: Oxford Academic Lei Yin Reprotox Biotech , Albuquerque, New Mexico 87131, USA Search for other works by this author on: Oxford Academic Natalie Adolphi Office of the Medical Investigator, University of New Mexico , Albuquerque, New Mexico 87106, USA Search for other works by this author on: Oxford Academic Daniel F Gallego Office of the Medical Investigator, University of New Mexico , Albuquerque, New Mexico 87106, USA Search for other works by this author on: Oxford Academic Huining Kang Department of Internal Medicine, Biostatistics Shared Resource of UNM Comprehensive Cancer Center, University of New Mexico , Albuquerque, New Mexico 87106, USA Search for other works by this author on: Oxford Academic Matthew J Campen College of Pharmacy, University of New Mexico , Akbuquerque, New Mexico 87106, USA Search for other works by this author on: Oxford Academic Xiaozhong Yu College of Nursing, University of New Mexico , Albuquerque, New Mexico 87106, USA To whom correspondence should be addressed. E-mail: xiyu@salud.unm.edu Search for other works by this author on: Oxford Academic
https://orcid.org/0000-0002-5523-9583 Toxicological Sciences, Volume 200, Issue 2, August 2024, Pages 235–240, https://doi.org/10.1093/toxsci/kfae060
Published:
15 May 2024
Article history
Published:
15 May 2024
Corrected and typeset:
24 May 2024
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Chelin Jamie Hu, Marcus A Garcia, Alexander Nihart, Rui Liu, Lei Yin, Natalie Adolphi, Daniel F Gallego, Huining Kang, Matthew J Campen, Xiaozhong Yu, Microplastic presence in dog and human testis and its potential association with sperm count and weights of testis and epididymis, Toxicological Sciences, Volume 200, Issue 2, August 2024, Pages 235–240, https://doi.org/10.1093/toxsci/kfae060
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Abstract
The ubiquitous existence of microplastics and nanoplastics raises concerns about their potential impact on the human reproductive system. Limited data exists on microplastics within the human reproductive system and their potential consequences on sperm quality. Our objectives were to quantify and characterize the prevalence and composition of microplastics within both canine and human testes and investigate potential associations with the sperm count, and weights of testis and epididymis. Using advanced sensitive pyrolysis-gas chromatography/mass spectrometry, we quantified 12 types of microplastics within 47 canine and 23 human testes. Data on reproductive organ weights, and sperm count in dogs were collected. Statistical analyses, including descriptive analysis, correlational analysis, and multivariate linear regression analyses were applied to investigate the association of microplastics with reproductive functions. Our study revealed the presence of microplastics in all canine and human testes, with significant inter-individual variability. Mean total microplastic levels were 122.63 µg/g in dogs and 328.44 µg/g in humans. Both humans and canines exhibit relatively similar proportions of the major polymer types, with PE being dominant. Furthermore, a negative correlation between specific polymers such as PVC and PET and the normalized weight of the testis was observed. These findings highlight the pervasive presence of microplastics in the male reproductive system in both canine and human testes, with potential consequences on male fertility.
polymers, particulates, pyrolysis GC/MS, testis, male reproductive, sperm count
© The Author(s) 2024. Published by Oxford University Press on behalf of the Society of Toxicology. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com
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Is this accurate to calculate?
21 May 2024
li
Personal
https://widecalculator.com/Microplasticsintesticl*sCalculator.html Is this accurate to calculate the Microplasticsin
Submitted on 21/05/2024 7:08 AM GMT
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