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Park Y, Lee I, Lee MJ, Park H, Jung GS, Kim N, Im W, Kim H, Lee JH, Cho S, Choi YS. Particulate matter exposure induces adverse effects on endometrium and fertility via aberrant inflammatory and apoptotic pathways in vitro and in vivo. CHEMOSPHERE 2024; 361:142466. [PMID: 38810796 DOI: 10.1016/j.chemosphere.2024.142466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2024] [Revised: 04/27/2024] [Accepted: 05/26/2024] [Indexed: 05/31/2024]
Abstract
This study aimed to evaluate the adverse effects of particulate matter (PM) exposure on endometrial cells and fertility and to identify possible underlying mechanisms. Thirteen women (aged 15-52 years) were included in this study. Enrolled patients underwent laparoscopic surgery at Gangnam Severance Hospital between 1 January and 31 December 2021. For in vivo experiments, 36 female and nine male C57BL/6 mice were randomly divided into control(vehicle), low-dose(10 mg/kg/d), and high-dose exposure groups(20 mg/kg/d). PM was inhaled nasally for four weeks and natural mating was performed. NIST® SRM® 1648a was used for PM exposure. qRT-PCR, western blotting and Masson's trichrome staining were performed. PM treatment in human endometrial stromal cells induced inflammation with significant upregulation of IL-1β, p-NF-kB, and p-c-Jun compared to those of controls. Additionally, PM treatment significantly increased apoptosis in human endometrial stromal cells by downregulating p-AKT and upregulating p-p53/p53, Cas-3, BAX/Bcl-2, p-AMPK, and p-ERK. After PM treatment, the relative expression of IL-1β, IL-6, TNF-α, p-NF-κB, p-c-Jun, and p-Nrf2/Nrf2 significantly increased in murine endometrium compared to those of the controls. Expression of apoptotic proteins p53, p27, and Cas-3, was also significantly elevated in murine endometrium of the PM exposure group compared to that of the controls. A significant increase in expression of procollagen Ⅰ, and Masson's trichrome staining scores in the murine endometrium was noted after PM treatment. PM treatment significantly decreased ERα expression. After natural mating, all 3 female mice in the control group gave birth to 25 offspring (mean 8.1), whereas in the low-dose PM treatment group, two of three female mice gave birth to nine offspring (mean 4.5). No pregnant mice or offspring was present in the high-dose PM treatment group. PM exposure induces adverse effects on the endometrium through aberrant activation of inflammatory and apoptotic pathways and is associated with detrimental effects on murine fertility.
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Affiliation(s)
- Yunjeong Park
- Department of Obstetrics and Gynecology, Guro Hospital, Korea University College of Medicine, Seoul, 08308, Republic of Korea
| | - Inha Lee
- Department of Obstetrics and Gynecology, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, 06229, Republic of Korea; Institute of Women's Life Medical Science, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea
| | - Min Jung Lee
- Department of Obstetrics and Gynecology, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, 06229, Republic of Korea; Institute of Women's Life Medical Science, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea
| | - Hyemin Park
- Department of Obstetrics and Gynecology, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, 06229, Republic of Korea
| | - Gee Soo Jung
- Department of Medical Device Engineering and Management, Yonsei University College of Medicine, Seoul, 06229, Republic of Korea
| | - Nara Kim
- Department of Medical Device Engineering and Management, Yonsei University College of Medicine, Seoul, 06229, Republic of Korea
| | - Wooseok Im
- Department of Obstetrics and Gynecology, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, 06229, Republic of Korea; Institute of Women's Life Medical Science, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea
| | - Heeyon Kim
- Department of Obstetrics and Gynecology, Severance Hospital, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea
| | - Jae Hoon Lee
- Department of Obstetrics and Gynecology, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, 06229, Republic of Korea; Institute of Women's Life Medical Science, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea
| | - SiHyun Cho
- Department of Obstetrics and Gynecology, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, 06229, Republic of Korea; Institute of Women's Life Medical Science, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea.
| | - Young Sik Choi
- Institute of Women's Life Medical Science, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea; Department of Obstetrics and Gynecology, Severance Hospital, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea
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Zhang S, Li X, Zhang L, Zhang Z, Li X, Xing Y, Wenger JC, Long X, Bao Z, Qi X, Han Y, Prévôt ASH, Cao J, Chen Y. Disease types and pathogenic mechanisms induced by PM 2.5 in five human systems: An analysis using omics and human disease databases. ENVIRONMENT INTERNATIONAL 2024; 190:108863. [PMID: 38959566 DOI: 10.1016/j.envint.2024.108863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2024] [Revised: 06/21/2024] [Accepted: 06/28/2024] [Indexed: 07/05/2024]
Abstract
Atmospheric fine particulate matter (PM2.5) can harm various systems in the human body. Due to limitations in the current understanding of epidemiology and toxicology, the disease types and pathogenic mechanisms induced by PM2.5 in various human systems remain unclear. In this study, the disease types induced by PM2.5 in the respiratory, circulatory, endocrine, and female and male urogenital systems have been investigated and the pathogenic mechanisms identified at molecular level. The results reveal that PM2.5 is highly likely to induce pulmonary emphysema, reperfusion injury, malignant thyroid neoplasm, ovarian endometriosis, and nephritis in each of the above systems respectively. The most important co-existing gene, cellular component, biological process, molecular function, and pathway in the five systems targeted by PM2.5 are Fos proto-oncogene (FOS), extracellular matrix, urogenital system development, extracellular matrix structural constituent conferring tensile strength, and ferroptosis respectively. Differentially expressed genes that are significantly and uniquely targeted by PM2.5 in each system are BTG2 (respiratory), BIRC5 (circulatory), NFE2L2 (endocrine), TBK1 (female urogenital) and STAT1 (male urogenital). Important disease-related cellular components, biological processes, and molecular functions are specifically induced by PM2.5. For example, response to wounding, blood vessel morphogenesis, body morphogenesis, negative regulation of response to endoplasmic reticulum stress, and response to type I interferon are the top uniquely existing biological processes in each system respectively. PM2.5 mainly acts on key disease-related pathways such as the PD-L1 expression and PD-1 checkpoint pathway in cancer (respiratory), cell cycle (circulatory), apoptosis (endocrine), antigen processing and presentation (female urogenital), and neuroactive ligand-receptor interaction (male urogenital). This study provides a novel analysis strategy for elucidating PM2.5-related disease types and is an important supplement to epidemiological investigation. It clarifies the risks of PM2.5 exposure, elucidates the pathogenic mechanisms, and provides scientific support for promoting the precise prevention and treatment of PM2.5-related diseases.
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Affiliation(s)
- Shumin Zhang
- Institute of Basic Medicine and Forensic Medicine, North Sichuan Medical College, Nanchong 637000, Sichuan, China
| | - Xiaomeng Li
- Institute of Basic Medicine and Forensic Medicine, North Sichuan Medical College, Nanchong 637000, Sichuan, China; Research Center for Atmospheric Environment, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China; Department of Laboratory Medicine, North Sichuan Medical College, Nanchong 637000, Sichuan, China
| | - Liru Zhang
- Institute of Basic Medicine and Forensic Medicine, North Sichuan Medical College, Nanchong 637000, Sichuan, China
| | - Zhengliang Zhang
- Institute of Basic Medicine and Forensic Medicine, North Sichuan Medical College, Nanchong 637000, Sichuan, China; School of Public Health, North Sichuan Medical College, Nanchong 637000, Sichuan, China
| | - Xuan Li
- Institute of Basic Medicine and Forensic Medicine, North Sichuan Medical College, Nanchong 637000, Sichuan, China; School of Public Health, North Sichuan Medical College, Nanchong 637000, Sichuan, China
| | - Yan Xing
- Department of Laboratory Medicine, North Sichuan Medical College, Nanchong 637000, Sichuan, China
| | - John C Wenger
- School of Chemistry and Environmental Research Institute, University College Cork, Cork, Ireland
| | - Xin Long
- Research Center for Atmospheric Environment, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China
| | - Zhier Bao
- Research Center for Atmospheric Environment, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China
| | - Xin Qi
- Research Center for Atmospheric Environment, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China
| | - Yan Han
- Research Center for Atmospheric Environment, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China
| | - André S H Prévôt
- Laboratory of Atmospheric Chemistry, Paul Scherrer Institut, Villigen, PSI 5232, Switzerland
| | - Junji Cao
- Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China
| | - Yang Chen
- Research Center for Atmospheric Environment, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China.
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Zheng S, Jiang L, Qiu L. The effects of fine particulate matter on the blood-testis barrier and its potential mechanisms. REVIEWS ON ENVIRONMENTAL HEALTH 2024; 39:233-249. [PMID: 36863426 DOI: 10.1515/reveh-2022-0204] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2022] [Accepted: 11/13/2022] [Indexed: 02/17/2024]
Abstract
With the rapid expansion of industrial scale, an increasing number of fine particulate matter (PM2.5) has bringing health concerns. Although exposure to PM2.5 has been clearly associated with male reproductive toxicity, the exact mechanisms are still unclear. Recent studies demonstrated that exposure to PM2.5 can disturb spermatogenesis through destroying the blood-testis barrier (BTB), consisting of different junction types, containing tight junctions (TJs), gap junctions (GJs), ectoplasmic specialization (ES) and desmosomes. The BTB is one of the tightest blood-tissue barriers among mammals, which isolating germ cells from hazardous substances and immune cell infiltration during spermatogenesis. Therefore, once the BTB is destroyed, hazardous substances and immune cells will enter seminiferous tubule and cause adversely reproductive effects. In addition, PM2.5 also has shown to cause cells and tissues injury via inducing autophagy, inflammation, sex hormones disorder, and oxidative stress. However, the exact mechanisms of the disruption of the BTB, induced by PM2.5, are still unclear. It is suggested that more research is required to identify the potential mechanisms. In this review, we aim to understand the adverse effects on the BTB after exposure to PM2.5 and explore its potential mechanisms, which provides novel insight into accounting for PM2.5-induced BTB injury.
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Affiliation(s)
- Shaokai Zheng
- School of Public Health, Nantong University, Nantong, P. R. China
| | - Lianlian Jiang
- School of Public Health, Nantong University, Nantong, P. R. China
| | - Lianglin Qiu
- School of Public Health, Nantong University, Nantong, P. R. China
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Yang W, Hua R, Cao Y, He X. A metabolomic perspective on the mechanisms by which environmental pollutants and lifestyle lead to male infertility. Andrology 2024; 12:719-739. [PMID: 37815095 DOI: 10.1111/andr.13530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Revised: 08/17/2023] [Accepted: 09/03/2023] [Indexed: 10/11/2023]
Abstract
The incidence of male infertility (MI) is rising annually. According to epidemiological studies, environmental pollution (e.g., organic, inorganic, and air pollutants), occupational exposure (e.g., high temperature, organic solvents, and pesticides), and poor lifestyle (e.g., diet, sleep, smoking, alcohol consumption, and exercise) are important non-genetic causative factors of MI. Due to multiple and complex causative factors, the dose-effect relationship, and the uncertainty of pathogenicity, the pathogenesis of MI is far from fully clarified. Recent data show that the pathogenesis of MI can be monitored by the metabolites in serum, seminal plasma, urine, testicular tissue, sperm, and other biological samples. It is considered that these metabolites are closely related to MI phenotypes and can directly reflect the individual pathological and physiological conditions. Therefore, qualitative and quantitative analysis of the metabolome, the related metabolic pathways, and the identification of biomarkers will help to explore the MI-related metabolic problems and provide valuable insights into its pathogenic mechanisms. Here, we summarized new findings in MI metabolomics biomarkers research and their abnormal metabolic pathways triggered by the presented non-genetic risk factors, providing a metabolic landscape of semen and seminal plasma in general MI patients. Then, we compared the similarities and differences in semen and seminal plasma biomarkers between MI patients exposed to environmental and poor lifestyle factors and MI patients in general, and summarized some common biomarkers. We provide a better understanding of the biological underpinnings of MI pathogenesis, which might offer novel diagnostic, prognostic, and precise treatment approaches to MI.
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Affiliation(s)
- Wen Yang
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, Anhui Medical University, Hefei, China
| | - Rong Hua
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
- NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, Anhui Medical University, Hefei, China
| | - Yunxia Cao
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
- NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, Anhui Medical University, Hefei, China
| | - Xiaojin He
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, Anhui Medical University, Hefei, China
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5
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Gao X, Xu K, Du W, Wang S, Jiang M, Wang Y, Han Q, Chen M. Comparing the effects and mechanisms of exposure to polystyrene nanoplastics with different functional groups on the male reproductive system. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 922:171299. [PMID: 38423318 DOI: 10.1016/j.scitotenv.2024.171299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Revised: 01/14/2024] [Accepted: 02/25/2024] [Indexed: 03/02/2024]
Abstract
After aging in the environment, some nanoplastics will carry different charges and functional groups, thereby altering their toxicological effects. To evaluate the potential impact of aging of nanoplastics on the mammalian reproductive system, we exposed C57BL/6 male mice to a dose of 5 mg/kg/d polystyrene nanoparticles (PS-NPs) with different functional groups (unmodified, carboxyl functionalized and amino functionalized) for 45 days for this study. The results suggest that PS-NPs with different functional groups triggered oxidative stress, a decreased in the testis index, disruption of the outer wall of the seminiferous tubules, reduction in the number of spermatogonia cells and sperm counts, and an increased in sperm malformations. We performed GO and KEGG enrichment analysis on the differentially expressed proteins, and found they were mainly enriched in protein transport, RNA splicing and mTOR signaling. We confirmed that the PI3K-AKT-mTOR pathway is over activated, which may lead to reduction of spermatogonia stem cells by over differentiation. Strikingly, PS-NPs with functional group modifications are more toxic than those of unmodified polystyrene, and that PS-NPs with positively charged amino modifications are the most toxic. This study provides a new understanding for correctly evaluating the toxicological effects of plastic aging, and of the mechanism responsible for the reproductive toxicity caused by nanoplastics.
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Affiliation(s)
- Xiao Gao
- Hubei Key Laboratory of Genetic Regulation and Integrative Biology, School of Life Sciences, Central China Normal University, Wuhan 430079, Hubei, China
| | - Ke Xu
- Hubei Key Laboratory of Genetic Regulation and Integrative Biology, School of Life Sciences, Central China Normal University, Wuhan 430079, Hubei, China
| | - Wanting Du
- Hubei Key Laboratory of Genetic Regulation and Integrative Biology, School of Life Sciences, Central China Normal University, Wuhan 430079, Hubei, China
| | - Shuxin Wang
- Hubei Key Laboratory of Genetic Regulation and Integrative Biology, School of Life Sciences, Central China Normal University, Wuhan 430079, Hubei, China
| | - Mengling Jiang
- Hubei Key Laboratory of Genetic Regulation and Integrative Biology, School of Life Sciences, Central China Normal University, Wuhan 430079, Hubei, China
| | - Yunyi Wang
- Hubei Key Laboratory of Genetic Regulation and Integrative Biology, School of Life Sciences, Central China Normal University, Wuhan 430079, Hubei, China
| | - Qi Han
- Hubei Key Laboratory of Genetic Regulation and Integrative Biology, School of Life Sciences, Central China Normal University, Wuhan 430079, Hubei, China
| | - Mingqing Chen
- Hubei Key Laboratory of Genetic Regulation and Integrative Biology, School of Life Sciences, Central China Normal University, Wuhan 430079, Hubei, China.
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Ma Y, Hu C, Cai G, Xia Q, Fan D, Cao Y, Pan F. Associations of exposure to ambient fine particulate matter constituents from different pollution sources with semen quality: Evidence from a prospective cohort. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 343:123200. [PMID: 38135136 DOI: 10.1016/j.envpol.2023.123200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 12/02/2023] [Accepted: 12/18/2023] [Indexed: 12/24/2023]
Abstract
The association between ambient fine particulate matter (PM2.5) exposure and semen quality remains inconclusive, possibly due to variations in pollution sources and PM2.5 compositions. Studies investigating the constituents of PM2.5 have been hindered by small sample sizes, and research exploring the relationships between PM2.5 pollution sources and semen quality is lacking. To address this gap, we conducted a comprehensive study based on the Anhui prospective assisted reproduction cohort to evaluate the associations between semen quality and the constituents and pollution sources of PM2.5. This study included 9013 semen samples from 4417 males in the urban districts of Hefei. The median concentrations of PM2.5 constituents, including eight metals and four water-soluble ions (WSIs), were measured for seven days per month at two monitoring stations during the 0-90-day exposure window. A linear mixed-effects model, weighted quantile sum regression, and positive matrix factorisation were used to evaluate the associations of the constituents and pollution sources of PM2.5 with semen quality. The results showed that exposure to PM2.5-bound metals (antimony, arsenic, cadmium, lead, and thallium) and WSIs (sulphate and chloride) were negatively associated with semen quality parameters. Moreover, mixtures of PM2.5-bound metals and WSIs were negatively associated with semen quality. Additionally, PM2.5 derived from traffic emissions was negatively associated with semen quality. In summary, our study revealed that ambient PM2.5 and its constituents, especially metals, were negatively associated with semen quality. Antimony, lead, and thallium emerged as the primary contributors to toxicity, and PM2.5 from traffic emissions was associated with decreased semen quality. These findings have important public health implications for the management of PM2.5 pollution in the context of male reproductive health.
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Affiliation(s)
- Yubo Ma
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, Anhui, China; The Key Laboratory of Major Autoimmune Diseases, 81 Meishan Road, Anhui Medical University, Hefei, Anhui, China
| | - Chengyang Hu
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, Anhui, China; Department of Humanistic Medicine, School of Humanistic Medicine, Anhui Medical University, 81 Meishan Road, Hefei 230032, China
| | - Guoqi Cai
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, Anhui, China; The Key Laboratory of Major Autoimmune Diseases, 81 Meishan Road, Anhui Medical University, Hefei, Anhui, China
| | - Qing Xia
- Australian Centre for Health Services Innovation and Centre for Healthcare Transformation, School of Public Health and Social Work, Faculty of Health, Queensland University of Technology, Brisbane, Queensland, Australia
| | - Dazhi Fan
- Foshan Institute of Fetal Medicine, Southern Medical University Affiliated Maternal and Child Health Hospital of Foshan, Foshan, Guangdong, China
| | - Yunxia Cao
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China; Reproductive Medicine Center, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Faming Pan
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, Anhui, China; The Key Laboratory of Major Autoimmune Diseases, 81 Meishan Road, Anhui Medical University, Hefei, Anhui, China.
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Liu J, Zuo X, Bi J, Li H, Li Y, Ma J, Wang S. Palliative Effect of Combined Application of Zinc and Selenium on Reproductive Injury Induced by Tripterygium Glycosides in Male Rats. Biol Trace Elem Res 2024:10.1007/s12011-023-04054-8. [PMID: 38190060 DOI: 10.1007/s12011-023-04054-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Accepted: 12/30/2023] [Indexed: 01/09/2024]
Abstract
The long-term use of tripterygium glycosides (TG) can lead to male reproductive damage. Research indicates that zinc and selenium exhibit a synergistic effect in the male reproductive system, with the combined preparation demonstrating superior therapeutic effects compared to individual preparations. The purpose of this study was to explore the specific mechanism by which zinc and selenium mitigate reproductive toxicity induced by TG in male rats. Rats were randomly assigned to three groups: control group (C group), model group (M group, receiving TG at 30 mg/kg/day), and model + zinc + selenium group (ZS group). The ZS group was also given TG gavage for the first 4 weeks. Starting from the fifth week until the conclusion of the eighth week, the ZS group received an additional protective treatment of 10 mg/kg/day Zn and 0.1 mg/kg/day Se 4 h after TG administration. Following euthanasia, blood samples, rat testis, and epididymis tissues were collected for further experiments. Combined zinc-selenium treatment corrects the imbalance of zinc-selenium homeostasis in testicular tissue induced by TG. This is achieved by upregulating the expression of metal transcription factor (MTF1) and zinc transporters ZIP8 and ZIP14 and downregulating the expression of ZnT10. Improvement of zinc and selenium homeostasis enhanced the expression of zinc-containing enzymes (ADH, LDH, and ALP) and selenoproteins (GPx1 and SELENOP) in the testis. At the same time, zinc and selenium mitigate TG-induced reproductive damage by promoting the activity of antioxidant enzymes and upregulating the expression of proteins associated with the oxidative stress pathway, including Nrf2, Keap1, HO-1, PI3K, and p-AKT.
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Affiliation(s)
- Junsheng Liu
- Graduate School of Hebei Medical University, Shijiazhuang, 050017, China
| | - Xin Zuo
- Department of College of Chemistry and Materials Science, Hebei Normal University, Shijiazhuang, 050024, China
| | - Jiajie Bi
- Graduate School of Chengde Medical University, Chengde, 067000, China
| | - Huanhuan Li
- Hebei Key Laboratory of Reproductive Medicine, Hebei Reproductive Health Hospital, Shijiazhuang, 050071, China
| | - Yuanjing Li
- Department of College of Chemistry and Materials Science, Hebei Normal University, Shijiazhuang, 050024, China
| | - Jing Ma
- Hebei Key Laboratory of Reproductive Medicine, Hebei Reproductive Health Hospital, Shijiazhuang, 050071, China
| | - Shusong Wang
- Department of College of Chemistry and Materials Science, Hebei Normal University, Shijiazhuang, 050024, China.
- Graduate School of Chengde Medical University, Chengde, 067000, China.
- Hebei Key Laboratory of Reproductive Medicine, Hebei Reproductive Health Hospital, Shijiazhuang, 050071, China.
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Omolaoye TS, Skosana BT, Ferguson LM, Ramsunder Y, Ayad BM, Du Plessis SS. Implications of Exposure to Air Pollution on Male Reproduction: The Role of Oxidative Stress. Antioxidants (Basel) 2024; 13:64. [PMID: 38247488 PMCID: PMC10812603 DOI: 10.3390/antiox13010064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 10/19/2023] [Accepted: 10/23/2023] [Indexed: 01/23/2024] Open
Abstract
Air pollution, either from indoor (household) or outdoor (ambient) sources, occurs when there is presence of respirable particles in the form of chemical, physical, or biological agents that modify the natural features of the atmosphere or environment. Today, almost 2.4 billion people are exposed to hazardous levels of indoor pollution, while 99% of the global population breathes air pollutants that exceed the World Health Organization guideline limits. It is not surprising that air pollution is the world's leading environmental cause of diseases and contributes greatly to the global burden of diseases. Upon entry, air pollutants can cause an increase in reactive oxygen species (ROS) production by undergoing oxidation to generate quinones, which further act as oxidizing agents to yield more ROS. Excessive production of ROS can cause oxidative stress, induce lipid peroxidation, enhance the binding of polycyclic aromatic hydrocarbons (PAHs) to their receptors, or bind to PAH to cause DNA strand breaks. The continuous and prolonged exposure to air pollutants is associated with the development or exacerbation of pathologies such as acute or chronic respiratory and cardiovascular diseases, neurodegenerative and skin diseases, and even reduced fertility potential. Males and females contribute to infertility equally, and exposure to air pollutants can negatively affect reproduction. In this review, emphasis will be placed on the implications of exposure to air pollutants on male fertility potential, bringing to light its effects on semen parameters (basic and advanced) and male sexual health. This study will also touch on the clinical implications of air pollution on male reproduction while highlighting the role of oxidative stress.
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Affiliation(s)
- Temidayo S. Omolaoye
- College of Medicine, Mohammed Bin Rashid University of Medicine and Health Sciences, Dubai P.O. Box 505055, United Arab Emirates;
| | - Bongekile T. Skosana
- Division of Medical Physiology, Faculty of Medicine and Health Sciences, Stellenbosch University, Tygerberg, Cape Town 7602, South Africa; (B.T.S.); (L.M.F.); (Y.R.)
| | - Lisa Marie Ferguson
- Division of Medical Physiology, Faculty of Medicine and Health Sciences, Stellenbosch University, Tygerberg, Cape Town 7602, South Africa; (B.T.S.); (L.M.F.); (Y.R.)
| | - Yashthi Ramsunder
- Division of Medical Physiology, Faculty of Medicine and Health Sciences, Stellenbosch University, Tygerberg, Cape Town 7602, South Africa; (B.T.S.); (L.M.F.); (Y.R.)
| | - Bashir M. Ayad
- Department of Physiology, Faculty of Medicine, Misurata University, Misratah P.O. Box 2478, Libya;
| | - Stefan S. Du Plessis
- College of Medicine, Mohammed Bin Rashid University of Medicine and Health Sciences, Dubai P.O. Box 505055, United Arab Emirates;
- Division of Medical Physiology, Faculty of Medicine and Health Sciences, Stellenbosch University, Tygerberg, Cape Town 7602, South Africa; (B.T.S.); (L.M.F.); (Y.R.)
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Huang J, Lu H, Du J, Zhang L, Wei J, Huang Q, Wu S, Zhou X, Ren L. Effects of exposure to PM 2.5 during pregnancy on the multigenerational reproductive outcomes of male mouse offspring and the role of Sertoli cells. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:103823-103835. [PMID: 37697192 DOI: 10.1007/s11356-023-29751-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Accepted: 09/03/2023] [Indexed: 09/13/2023]
Abstract
There is a paucity of studies on the multigenerational reproductive toxicity of fine particle matter (PM2.5) exposure during pregnancy on male offspring and the underlying mechanisms. This study explored the effects of PM2.5 exposure during pregnancy on the spermatogenesis of three consecutive generations of male mouse offspring. We randomized pregnant C57BL/6 mice into the control group, the Quartz Fiber Membrane control group, and two experimental groups exposed to different concentrations of PM2.5 (4.8 and 43.2 mg/kg B.Wt.). Pregnant mice from experimental groups received intratracheal instillation of PM2.5 of different doses on a three-day basis until birth. F1 mature male offspring from PM2.5-exposed pregnant mice were mated with normal female C57BL/6 mice. Likewise, their F2 mature male followed the same to produce the F3 generation. The results showed that PM2.5 exposure during pregnancy led to decreased body and tail length, body weight, and survival rates, decreased sperm concentration and sperm motility, and increased sperm abnormality rates significantly in F1 male offspring. We barely observed significant impacts of PM2.5 on the birth number, survival rates, and index of testes in the F2 and F3 offspring. Further exploration showed that PM2.5 exposure during pregnancy caused the morphological abnormality of Sertoli cells, downregulated androgen receptor (AR) and connexin43, upregulated anti-Müllerian hormone (AMH), cytokeratin-18 (CK-18), caspase-3, and cleaved caspase-3, decreased thyroid-stimulating hormone (TSH) and testosterone (T), and increased triiodothyronine (T3) in F1 male mouse offspring. Overall, we hypothesize that PM2.5 exposure during pregnancy mainly negatively impacts spermatogenesis in the F1 offspring. The possible mechanism could be that PM2.5 exposure during pregnancy disrupts endocrine hormone release in the F1 generation, thereby influencing the maturation and proliferation of their Sertoli cells and hindering spermatogenesis. This study for the first time investigates the role of Sertoli cells in the reproductive toxicity of PM2.5 on offspring.
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Affiliation(s)
- Jing Huang
- School of Nursing, Peking University, Beijing, 100191, China
| | - Hong Lu
- School of Nursing, Peking University, Beijing, 100191, China
| | - Jiwei Du
- Nursing Department, The University of Hong Kong-Shenzhen Hospital, Shenzhen, 518040, China
| | - Lianshuang Zhang
- Department of Histology and Embryology, Binzhou Medical University, Yan Tai, 264003, China
| | - Jialiu Wei
- Department of Epidemiology, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Centre for Cardiovascular Diseases, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100037, China
| | - Qifang Huang
- School of Nursing, Peking University, Beijing, 100191, China
| | - Shaowei Wu
- School of Public Health, Xi'an Jiaotong University Health Science Centre, Xi'an, China
| | - Xianqing Zhou
- School of Public Health, Capital Medical University, Beijing, 10069, China
| | - Lihua Ren
- School of Nursing, Peking University, Beijing, 100191, China.
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10
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Li L, Pei Z, Wu R, Zhang Y, Pang Y, Hu H, Hu W, Geng Z, Feng T, Niu Y, Hao G, Zhang R. FDX1 regulates leydig cell ferroptosis mediates PM 2.5-induced testicular dysfunction of mice. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 263:115309. [PMID: 37517308 DOI: 10.1016/j.ecoenv.2023.115309] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 07/24/2023] [Accepted: 07/25/2023] [Indexed: 08/01/2023]
Abstract
Epidemiological studies have established an association between chronic exposure to PM2.5 and male infertility. However, the underlying mechanisms were not fully revealed. In this study, we established mice models exposed to PM2.5 for 16 weeks, and a significant decrease in sperm quality accompanied by an increase in testosterone levels were observed after PM2.5 exposure. Moreover, treatment with ferrostatin-1 (Fer-1), a specific ferroptosis inhibitor, effectively mitigated PM2.5-induced testicular dysfunction in mice. And lipid peroxidation and ferritin accumulation were found to be significantly increased in Leydig cells of testes with a PM2.5-dose dependent manner. Further investigations revealed that TM-3 cells, a mouse Leydig cell line, were prone to ferroptosis after PM2.5 exposure, and the cell viability was partly rescued after the intervention of Fer-1. Furthermore, our results supported that the ferroptosis of TM-3 cells was attributed to the upregulation of ferredoxin 1 (FDX1), which was the protein transferring electrons to cytochrome P450 family 11 subfamily A member 1 to aid lysing cholesterol to pregnenolone at initial of steroidogenesis. Mechanically, PM2.5-induced FDX1 upregulation resulted in cellular ROS elevation and ferrous iron overload, which together initiated an autoxidation process of polyunsaturated fatty acids in the cell membrane of Leydig cells until the accumulated lipid peroxides triggered ferroptotic cell death. Simultaneously, upregulation of FDX1 promoted steroidogenesis and let to an increased level of testosterone. In summary, our work suggested that FDX1, a mediator involving steroidogenesis, was a key regulator in PM2.5-induced Leydig cells ferroptosis.
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Affiliation(s)
- Lipeng Li
- Department of Toxicology, Hebei Medical University, Shijiazhuang 050017, Hebei, PR China; Department of Reproductive Medicine, The Second Hospital of Hebei Medical University, Shijiazhuang 050017, PR China
| | - Zijie Pei
- Department of Toxicology, Hebei Medical University, Shijiazhuang 050017, Hebei, PR China; Department of Thoracic Surgery, The Second Hospital of Hebei Medical University, Shijiazhuang 050017, PR China
| | - Ruiting Wu
- Department of Toxicology, Hebei Medical University, Shijiazhuang 050017, Hebei, PR China
| | - Yaling Zhang
- Department of Toxicology, Hebei Medical University, Shijiazhuang 050017, Hebei, PR China
| | - Yaxian Pang
- Department of Toxicology, Hebei Medical University, Shijiazhuang 050017, Hebei, PR China
| | - Huaifang Hu
- Department of Toxicology, Hebei Medical University, Shijiazhuang 050017, Hebei, PR China
| | - Wentao Hu
- Department of Toxicology, Hebei Medical University, Shijiazhuang 050017, Hebei, PR China
| | - Zihan Geng
- Department of Occupational Health and Environmental Health, Hebei Medical University, Shijiazhuang 050017, Hebei, PR China
| | - Tengfei Feng
- Department of Reproductive Medicine, The Second Hospital of Hebei Medical University, Shijiazhuang 050017, PR China
| | - Yujie Niu
- Department of Occupational Health and Environmental Health, Hebei Medical University, Shijiazhuang 050017, Hebei, PR China; Key Laboratory of Environment and Human Health, Hebei Medical University, Shijiazhuang 050017, Hebei, PR China
| | - Guimin Hao
- Department of Reproductive Medicine, The Second Hospital of Hebei Medical University, Shijiazhuang 050017, PR China.
| | - Rong Zhang
- Department of Toxicology, Hebei Medical University, Shijiazhuang 050017, Hebei, PR China; Key Laboratory of Environment and Human Health, Hebei Medical University, Shijiazhuang 050017, Hebei, PR China.
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11
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Santacruz-Márquez R, Neff AM, Mourikes VE, Fletcher EJ, Flaws JA. The effects of inhaled pollutants on reproduction in marginalized communities: a contemporary review. Inhal Toxicol 2023:1-18. [PMID: 37075037 PMCID: PMC10584991 DOI: 10.1080/08958378.2023.2197941] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Accepted: 03/25/2023] [Indexed: 04/20/2023]
Abstract
Important differences in health that are closely linked with social disadvantage exist within and between countries. According to the World Health Organization, life expectancy and good health continue to increase in many parts of the world, but fail to improve in other parts of the world, indicating that differences in life expectancy and health arise due to the circumstances in which people grow, live, work, and age, and the systems put in place to deal with illness. Marginalized communities experience higher rates of certain diseases and more deaths compared to the general population, indicating a profound disparity in health status. Although several factors place marginalized communities at high risk for poor health outcomes, one important factor is exposure to air pollutants. Marginalized communities and minorities are exposed to higher levels of air pollutants than the majority population. Interestingly, a link exists between air pollutant exposure and adverse reproductive outcomes, suggesting that marginalized communities may have increased reproductive disorders due to increased exposure to air pollutants compared to the general population. This review summarizes different studies showing that marginalized communities have higher exposure to air pollutants, the types of air pollutants present in our environment, and the associations between air pollution and adverse reproductive outcomes, focusing on marginalized communities.
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Affiliation(s)
| | - Alison M. Neff
- Department of Comparative Biosciences, University of Illinois Urbana-Champaign
| | | | - Endia J. Fletcher
- Department of Comparative Biosciences, University of Illinois Urbana-Champaign
| | - Jodi A. Flaws
- Department of Comparative Biosciences, University of Illinois Urbana-Champaign
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12
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Zhang F, Li H, Xu W, Song G, Wang Z, Mao X, Wei Y, Dai M, Zhang Y, Shen Q, Fu F, Tan J, Ge L, He X, Yin T, Yang S, Li S, Yang P, Jia P, Zhang Y. Sulfur dioxide may predominate in the adverse effects of ambient air pollutants on semen quality among the general population in Hefei, China. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 867:161472. [PMID: 36638985 DOI: 10.1016/j.scitotenv.2023.161472] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 12/24/2022] [Accepted: 01/04/2023] [Indexed: 06/17/2023]
Abstract
Previous studies have reported potential adverse effects of exposure to ambient air pollutants on semen quality in infertile men, but studies on the general population have been limited and inconsistent, and the pollutants that play a major role remain unclear. This study aimed to explore the potential association between exposure to six air pollutants (PM2.5, PM10, NO2, SO2, O3 and CO) during different sperm development periods and semen quality among the general population, and to explore the interaction between different air pollutant exposures. We included 1515 semen samples collected from the Human Sperm Bank. We improved individuals' exposure level estimation by combining inverse distance weighting (IDW) interpolation with satellite remote sensing data. Multivariate linear regression models, restricted cubic spline functions and double-pollutant models were used to assess the relationship between exposure to six air pollutants and sperm volume, concentration, total sperm number and sperm motility. A negative association was found between SO2 exposure and progressive motility and total motility during 0-90 lag days and 70-90 lag days, and SO2 exposure during 10-14 lag days adversely affected sperm concentration and total sperm number. Sensitive analyses for qualified sperm donors and the double-pollutant models obtained similar results. Additionally, there were nonlinear relationships between exposure to PM, NO2, O3, CO and a few semen parameters, with NO2 and O3 exposure above the threshold showing negative correlations with total motility and progressive motility, respectively. Our study suggested that SO2 may play a dominant role in the adverse effects of ambient air pollutants on semen quality in the general population by decreasing sperm motility, sperm concentration and total sperm number. Also, even SO2 exposure lower than the recommended standards of the World Health Organization (WHO) could still cause male reproductive toxicity, which deserves attention.
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Affiliation(s)
- Feng Zhang
- Reproductive Medical Center, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - Hang Li
- Reproductive Medicine Center, Anhui Provincial Human Sperm Bank, the First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China; Department of Obstetrics and Gynecology, the First Affiliated Hospital of Anhui Medical University, NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, Anhui Medical University, Hefei, Anhui, China
| | - Wenting Xu
- School of Resource and Environmental Sciences, Wuhan University, Wuhan, Hubei, China; International Institute of Spatial Lifecourse Health (ISLE), Wuhan University, Wuhan, Hubei, China
| | - Ge Song
- School of Remote Sensing and Information Engineering, Wuhan University, Wuhan, Hubei, China
| | - Zhanpeng Wang
- School of Resource and Environmental Sciences, Wuhan University, Wuhan, Hubei, China; International Institute of Spatial Lifecourse Health (ISLE), Wuhan University, Wuhan, Hubei, China
| | - Xiaohong Mao
- Reproductive Medicine Center, Anhui Provincial Human Sperm Bank, the First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China; Department of Obstetrics and Gynecology, the First Affiliated Hospital of Anhui Medical University, NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, Anhui Medical University, Hefei, Anhui, China
| | - Yiqiu Wei
- Reproductive Medical Center, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - Mengyang Dai
- Reproductive Medical Center, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - Yuying Zhang
- Reproductive Medical Center, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - Qunshan Shen
- Reproductive Medicine Center, Anhui Provincial Human Sperm Bank, the First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China; Department of Obstetrics and Gynecology, the First Affiliated Hospital of Anhui Medical University, NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, Anhui Medical University, Hefei, Anhui, China
| | - Feifei Fu
- Reproductive Medicine Center, Anhui Provincial Human Sperm Bank, the First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China; Department of Obstetrics and Gynecology, the First Affiliated Hospital of Anhui Medical University, NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, Anhui Medical University, Hefei, Anhui, China
| | - Jing Tan
- Reproductive Medicine Center, Anhui Provincial Human Sperm Bank, the First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China; Department of Obstetrics and Gynecology, the First Affiliated Hospital of Anhui Medical University, NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, Anhui Medical University, Hefei, Anhui, China
| | - Lei Ge
- Reproductive Medicine Center, Anhui Provincial Human Sperm Bank, the First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China; Department of Obstetrics and Gynecology, the First Affiliated Hospital of Anhui Medical University, NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, Anhui Medical University, Hefei, Anhui, China
| | - Xiaojin He
- Reproductive Medicine Center, Anhui Provincial Human Sperm Bank, the First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China; Department of Obstetrics and Gynecology, the First Affiliated Hospital of Anhui Medical University, NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, Anhui Medical University, Hefei, Anhui, China
| | - Tailang Yin
- Reproductive Medical Center, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - Shujuan Yang
- West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, Sichuan, China; International Institute of Spatial Lifecourse Health (ISLE), Wuhan University, Wuhan, Hubei, China
| | - Siwei Li
- School of Remote Sensing and Information Engineering, Wuhan University, Wuhan, Hubei, China; State Key Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing, Wuhan University, Wuhan, Hubei, China.
| | - Pan Yang
- Department of Public Health and Preventive Medicine, School of Medicine, Jinan University, Guangzhou, Guangdong, China.
| | - Peng Jia
- School of Resource and Environmental Sciences, Wuhan University, Wuhan, Hubei, China; Hubei Luojia Laboratory, Wuhan, Hubei, China; International Institute of Spatial Lifecourse Health (ISLE), Wuhan University, Wuhan, Hubei, China; School of Public Health, Wuhan University, Wuhan, Hubei, China.
| | - Yan Zhang
- Department of Clinical Laboratory, Institute of Translational Medicine, Renmin Hospital of Wuhan University, Wuhan, Hubei, China.
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13
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Zhuge R, Li Z, He C, Ma W, Yan J, Xue Q, Wang R, Liu Y, Lu R, Du H, Yin F, Guo L. Bone marrow mesenchymal stem cells repair hexavalent chromium-induced testicular injury by regulating autophagy and ferroptosis mediated by the AKT/mTOR pathway in rats. ENVIRONMENTAL TOXICOLOGY 2023; 38:289-299. [PMID: 36416502 DOI: 10.1002/tox.23713] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Revised: 10/29/2022] [Accepted: 11/05/2022] [Indexed: 06/16/2023]
Abstract
There is no ideal therapy for testicular damage induced by Cr(VI); however, bone marrow mesenchymal stem cells (BMSCs) transplantation may be a promising therapy. A Cr(VI) solution was administered to rats by intraperitoneal injection for 30 days, then BMSCs from donor rats were transplanted. Two weeks later, decreased activity and appetite, along with other pathological changes, were improved in the BMSCs group. The location of BMSCs in damaged testes was observed via laser confocal microscopy. Chromium content in the Cr(VI) and BMSCs groups significantly increased compared with that in the control group, but there was no significant difference between the two groups, as revealed by atomic absorption spectrometry. The ferrous iron and the total iron content of testes in the BMSCs group were significantly lower than those in the Cr(VI) group, as observed by Lillie staining and a tissue iron assay kit. Western blotting and immunohistochemical analyses revealed that the expression of Beclin 1, LC3B, 4-hydroxynonenal, and transferrin receptor 1 was decreased in the BMSCs group, compared with the Cr(VI) group. The expression of glutathione peroxidase 4 (GPX4), SLC7A11, p-AKT, mammalian target of rapamycin (mTOR), and p-mTOR in the BMSCs group was higher than that in the Cr(VI) group. Taken together, we propose that BMSCs repair Cr(VI)-damaged testes by alleviating ferroptosis and downregulating autophagy-associated proteins through the upregulation of AKT and mTOR phosphorylation.
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Affiliation(s)
- Ruijian Zhuge
- Department of Toxicology, School of Public Health, Jilin University, Changchun, Jilin Province, China
| | - Zhongrun Li
- Department of Toxicology, School of Public Health, Jilin University, Changchun, Jilin Province, China
| | - Changhao He
- Department of Toxicology, School of Public Health, Jilin University, Changchun, Jilin Province, China
| | - Wenxuan Ma
- Department of Toxicology, School of Public Health, Jilin University, Changchun, Jilin Province, China
| | - Jun Yan
- Department of Scientific Research Center, China-Japan Union Hospital, Jilin University, Changchun, Jilin Province, China
| | - Qian Xue
- Department of Toxicology, School of Public Health, Jilin University, Changchun, Jilin Province, China
| | - Rui Wang
- Department of Toxicology, School of Public Health, Jilin University, Changchun, Jilin Province, China
| | - Ying Liu
- Department of Toxicology, School of Public Health, Jilin University, Changchun, Jilin Province, China
| | - Rifeng Lu
- Department of Toxicology, School of Public Health, Jilin University, Changchun, Jilin Province, China
| | - Haiying Du
- Department of Toxicology, School of Public Health, Jilin University, Changchun, Jilin Province, China
| | - Fei Yin
- Department of Orthopaedics, China-Japan Union Hospital, Jilin University, Changchun, Jilin Province, China
| | - Li Guo
- Department of Toxicology, School of Public Health, Jilin University, Changchun, Jilin Province, China
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14
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Yu X, Wang Q, Wei J, Zeng Q, Xiao L, Ni H, Xu T, Wu H, Guo P, Zhang X. Impacts of traffic-related particulate matter pollution on semen quality: A retrospective cohort study relying on the random forest model in a megacity of South China. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 851:158387. [PMID: 36049696 DOI: 10.1016/j.scitotenv.2022.158387] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Revised: 08/17/2022] [Accepted: 08/25/2022] [Indexed: 02/05/2023]
Abstract
BACKGROUND Emerging evidence shows the detrimental impacts of particulate matter (PM) on poor semen quality. High-resolution estimates of PM concentrations are conducive to evaluating accurate associations between traffic-related PM exposure and semen quality. METHODS In this study, we firstly developed a random forest model incorporating meteorological factors, land-use information, traffic-related variables, and other spatiotemporal predictors to estimate daily traffic-related PM concentrations, including PM2.5, PM10, and PM1. Then we enrolled 1310 semen donors corresponding to 4912 semen samples during the study period from January 1, 2019, and December 31, 2019 in Guangzhou city, China. Linear mixed models were employed to associate individual exposures to traffic-related PM during the entire (0-90 lag days) and key periods (0-37 and 34-77 lag days) with semen quality parameters, including sperm concentration, sperm count, progressive motility and total motility. RESULTS The results showed that decreased sperm concentration was associated with PM10 exposures (β: -0.21, 95 % CI: -0.35, -0.07), sperm count was inversely related to both PM2.5 (β: -0.19, 95 % CI: -0.35, -0.02) and PM10 (β: -0.19, 95 % CI: -0.33, -0.05) during the 0-90 days lag exposure window. Besides, PM2.5 and PM10 might diminish sperm concentration by mainly affecting the late phase of sperm development (0-37 lag days). Stratified analyses suggested that PBF and drinking seemed to modify the associations between PM exposure and sperm motility. We did not observe any significant associations of PM1 exposures with semen parameters. CONCLUSION Our results indicate that exposure to traffic-related PM2.5 and PM10 pollution throughout spermatogenesis may adversely affect semen quality, especially sperm concentration and count. The findings provided more evidence for the negative associations between traffic-related PM exposure and semen quality, highlighting the necessity to reduce ambient air pollution through environmental policy.
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Affiliation(s)
- Xiaolin Yu
- Department of Preventive Medicine, Shantou University Medical College, No. 22 Xinling Road, Shantou 515041, China
| | - Qiling Wang
- National Health Commission Key Laboratory of Male Reproduction and Genetics, Guangzhou, China; Department of Andrology, Guangdong Provincial Reproductive Science Institute (Guangdong Provincial Fertility Hospital), China
| | - Jing Wei
- State Key Laboratory of Remote Sensing Science, College of Global Change and Earth System Science, Beijing Normal University, Beijing, China; Department of Atmospheric and Oceanic Science, Earth System Science Interdisciplinary Center, University of Maryland, College Park, MD, USA
| | - Qinghui Zeng
- Department of Preventive Medicine, Shantou University Medical College, No. 22 Xinling Road, Shantou 515041, China
| | - Lina Xiao
- Department of Preventive Medicine, Shantou University Medical College, No. 22 Xinling Road, Shantou 515041, China
| | - Haobo Ni
- Department of Preventive Medicine, Shantou University Medical College, No. 22 Xinling Road, Shantou 515041, China
| | - Ting Xu
- Department of Preventive Medicine, Shantou University Medical College, No. 22 Xinling Road, Shantou 515041, China
| | - Haisheng Wu
- Department of Preventive Medicine, Shantou University Medical College, No. 22 Xinling Road, Shantou 515041, China
| | - Pi Guo
- Department of Preventive Medicine, Shantou University Medical College, No. 22 Xinling Road, Shantou 515041, China
- Guangdong Provincial Key Laboratory of Infectious Diseases and Molecular Immunopathology, Shantou 515041, China
| | - Xinzong Zhang
- National Health Commission Key Laboratory of Male Reproduction and Genetics, Guangzhou, China
- Department of Andrology, Guangdong Provincial Reproductive Science Institute (Guangdong Provincial Fertility Hospital), China
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15
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Liu L, Shi Q, Wang K, Qian Y, Zhou L, Bellusci S, Chen C, Dong N. Fibroblast growth factor 10 protects against particulate matter-induced lung injury by inhibiting oxidative stress-mediated pyroptosis via the PI3K/Akt/Nrf2 signaling pathway. Int Immunopharmacol 2022; 113:109398. [PMID: 36461597 DOI: 10.1016/j.intimp.2022.109398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Revised: 10/18/2022] [Accepted: 10/26/2022] [Indexed: 11/06/2022]
Abstract
Particulate matter (PM) is a major environmental contaminant that causes and worsens respiratory diseases. Fibroblast growth factor 10 (FGF10), a paracrine fibroblast growth factor that specifically stimulates repair and regeneration after injury, has been shown to protect against PM-induced lung injury. However, the underlying mechanisms are still unclear. In this study, the protective effects of FGF10 were investigated using a PM-induced lung injury mouse model in vivo and BEAS-2B cells in vitro. According to the findings, FGF10 treatment alleviated PM-induced oxidative damage and pyroptosis in vivo and in vitro. Mechanistically, FGF10 activated antioxidative Nrf2 signaling. Inhibition of PI3K signaling with LY294002 or Nrf2 signaling with ML385 revealed that FGF10-mediated lung protection was mediated by the PI3K/Akt/Nrf2 pathway. These results collectively indicate that FGF10 inhibits oxidative stress-mediated pyroptosis via the PI3K/Akt/Nrf2 pathway, suggesting a possible therapy for PM-induced lung injury.
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Affiliation(s)
- Li Liu
- Zhejiang Provincial Key Laboratory of Interventional Pulmonology, Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Qiangqiang Shi
- Department of Respiratory Medicine, Affiliated Dongyang Hospital of Wenzhou Medical University, Jinhua 322100, China
| | - Kankai Wang
- Zhejiang Provincial Key Laboratory of Aging and Neurological Disorder Research, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Yao Qian
- Zhejiang Provincial Key Laboratory of Interventional Pulmonology, Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Liqin Zhou
- Zhejiang Provincial Key Laboratory of Interventional Pulmonology, Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Saverio Bellusci
- Department of Internal Medicine, Universities of Giessen and Marburg Lung Center (UGMLC), Cardio-Pulmonary Institute (CPI), Member of the German Center for Lung Research (DZL), Justus-Liebig University Giessen, 35392 Giessen, Germany.
| | - Chengshui Chen
- Zhejiang Provincial Key Laboratory of Interventional Pulmonology, Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China; Department of Pulmonary and Critical Care Medicine, The Quzhou Affiliated Hospital of Wenzhou Medical University, Quzhou People's Hospital, Quzhou 324000, China.
| | - Nian Dong
- Zhejiang Provincial Key Laboratory of Interventional Pulmonology, Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China.
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16
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Deng Y, Meng X, Ling C, Lu T, Chang H, Li L, Yang Y, Song G, Ding Y. Nanosized Titanium Dioxide Induced Apoptosis and Abnormal Expression of Blood-Testis Barrier Junction Proteins Through JNK Signaling Pathway in TM4 Cells. Biol Trace Elem Res 2022; 200:5172-5187. [PMID: 35013891 DOI: 10.1007/s12011-022-03099-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/03/2021] [Accepted: 01/02/2022] [Indexed: 12/13/2022]
Abstract
Nanosized titanium dioxide (nano-TiO2) has been widely used in consumer products. It can cross the blood-testis barrier (BTB), and it has adverse effects on the male reproductive system. However, the specific mechanism has not been fully elucidated. The purpose of this study was to understand the role of the JNK signaling pathway in the apoptosis and abnormal expression of BTB junction proteins induced by nano-TiO2 in TM4 cells. After different concentration of nano-TiO2 treatments, the cell viability, apoptosis, mitochondrial membrane potential (Δψm), BTB junction proteins (Claudin-11, ZO-1, β-catenin), apoptosis-related proteins (Bax, Bcl-2, cleaved caspase-9, cleaved caspase-3), and phosphorylated (p)-JNK protein were examined. The results showed that cell viability, apoptosis rates, Δψm, and apoptosis-related protein levels changed in a concentration-dependent manner. Cell viability decreased significantly from 100 μg/mL nano-TiO2 group. Apoptosis rates increased significantly from 150 μg/mL nano-TiO2 group, and Δψm decreased significantly from 150 μg/mL nano-TiO2 group. The protein levels of Bax, cleaved caspase-9, and cleaved caspase-3 increased significantly from 150 μg/mL nano-TiO2 group, and the protein level of Bcl-2 decreased significantly from 100 μg/mL nano-TiO2 group. The protein level of p-JNK increased significantly from 100 μg/mL nano-TiO2 group. Abnormal expression of ZO-1 and β-catenin started from 150 μg/mL nano-TiO2 group, and abnormal expression of Claudin-11 started from 100 μg/mL nano-TiO2 group. Cells were treated with JNK inhibitor SP100625 to determine whether the changes of the above indicators in the concentration of 150 μg/mL nano-TiO2 group can be reversed. We found that SP100625 at 20 μM significantly reversed these effects. These results highlighted that nano-TiO2 could activate the JNK signaling pathway to induce mitochondria-mediated apoptosis and abnormal expression of BTB junction proteins in TM4 cells.
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Affiliation(s)
- Yaxin Deng
- Department of Preventive Medicine/the Key Laboratories for Xinjiang Endemic and Ethnic Diseases, School of Medicine, Shihezi University, Shihezi, 832002, Xinjiang, China
| | - Xiaojia Meng
- Department of Preventive Medicine/the Key Laboratories for Xinjiang Endemic and Ethnic Diseases, School of Medicine, Shihezi University, Shihezi, 832002, Xinjiang, China
| | - Chunmei Ling
- The Third People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi, 830091, Xinjiang, China
| | - Tianjiao Lu
- Department of Preventive Medicine/the Key Laboratories for Xinjiang Endemic and Ethnic Diseases, School of Medicine, Shihezi University, Shihezi, 832002, Xinjiang, China
| | - Hongmei Chang
- Department of Preventive Medicine/the Key Laboratories for Xinjiang Endemic and Ethnic Diseases, School of Medicine, Shihezi University, Shihezi, 832002, Xinjiang, China
| | - Li Li
- Department of Preventive Medicine/the Key Laboratories for Xinjiang Endemic and Ethnic Diseases, School of Medicine, Shihezi University, Shihezi, 832002, Xinjiang, China
| | - Yaqian Yang
- Department of Preventive Medicine/the Key Laboratories for Xinjiang Endemic and Ethnic Diseases, School of Medicine, Shihezi University, Shihezi, 832002, Xinjiang, China
| | - Guanling Song
- Department of Preventive Medicine/the Key Laboratories for Xinjiang Endemic and Ethnic Diseases, School of Medicine, Shihezi University, Shihezi, 832002, Xinjiang, China.
- Department of Public Health, School of Medicine, Shihezi University, Shihezi, 832002, Xinjiang, China.
| | - Yusong Ding
- Department of Preventive Medicine/the Key Laboratories for Xinjiang Endemic and Ethnic Diseases, School of Medicine, Shihezi University, Shihezi, 832002, Xinjiang, China.
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Li T, Yu Y, Sun Z, Duan J. A comprehensive understanding of ambient particulate matter and its components on the adverse health effects based from epidemiological and laboratory evidence. Part Fibre Toxicol 2022; 19:67. [PMID: 36447278 PMCID: PMC9707232 DOI: 10.1186/s12989-022-00507-5] [Citation(s) in RCA: 32] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Accepted: 11/21/2022] [Indexed: 12/05/2022] Open
Abstract
The impacts of air pollution on public health have become a great concern worldwide. Ambient particulate matter (PM) is a major air pollution that comprises a heterogeneous mixture of different particle sizes and chemical components. The chemical composition and physicochemical properties of PM change with space and time, which may cause different impairments. However, the mechanisms of the adverse effects of PM on various systems have not been fully elucidated and systematically integrated. The Adverse Outcome Pathway (AOP) framework was used to comprehensively illustrate the molecular mechanism of adverse effects of PM and its components, so as to clarify the causal mechanistic relationships of PM-triggered toxicity on various systems. The main conclusions and new insights of the correlation between public health and PM were discussed, especially at low concentrations, which points out the direction for further research in the future. With the deepening of the study on its toxicity mechanism, it was found that PM can still induce adverse health effects with low-dose exposure. And the recommended Air Quality Guideline level of PM2.5 was adjusted to 5 μg/m3 by World Health Organization, which meant that deeper and more complex mechanisms needed to be explored. Traditionally, oxidative stress, inflammation, autophagy and apoptosis were considered the main mechanisms of harmful effects of PM. However, recent studies have identified several emerging mechanisms involved in the toxicity of PM, including pyroptosis, ferroptosis and epigenetic modifications. This review summarized the comprehensive evidence on the health effects of PM and the chemical components of it, as well as the combined toxicity of PM with other air pollutants. Based on the AOP Wiki and the mechanisms of PM-induced toxicity at different levels, we first constructed the PM-related AOP frameworks on various systems.
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Affiliation(s)
- Tianyu Li
- grid.24696.3f0000 0004 0369 153XDepartment of Toxicology and Sanitary Chemistry, School of Public Health, Capital Medical University, Beijing, 100069 People’s Republic of China ,grid.24696.3f0000 0004 0369 153XBeijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069 People’s Republic of China
| | - Yang Yu
- grid.24696.3f0000 0004 0369 153XDepartment of Toxicology and Sanitary Chemistry, School of Public Health, Capital Medical University, Beijing, 100069 People’s Republic of China ,grid.24696.3f0000 0004 0369 153XBeijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069 People’s Republic of China
| | - Zhiwei Sun
- grid.24696.3f0000 0004 0369 153XDepartment of Toxicology and Sanitary Chemistry, School of Public Health, Capital Medical University, Beijing, 100069 People’s Republic of China ,grid.24696.3f0000 0004 0369 153XBeijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069 People’s Republic of China
| | - Junchao Duan
- grid.24696.3f0000 0004 0369 153XDepartment of Toxicology and Sanitary Chemistry, School of Public Health, Capital Medical University, Beijing, 100069 People’s Republic of China ,grid.24696.3f0000 0004 0369 153XBeijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069 People’s Republic of China
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18
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Sidwell A, Smith SC, Roper C. A comparison of fine particulate matter (PM 2.5) in vivo exposure studies incorporating chemical analysis. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART B, CRITICAL REVIEWS 2022; 25:422-444. [PMID: 36351256 DOI: 10.1080/10937404.2022.2142345] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
The complex, variable mixtures present in fine particulate matter (PM2.5) have been well established, and associations between chemical constituents and human health are expanding. In the past decade, there has been an increase in PM2.5 toxicology studies that include chemical analysis of samples. This investigation is a crucial component for identifying the causal constituents for observed adverse health effects following exposure to PM2.5. In this review, investigations of PM2.5 that used both in vivo models were explored and chemical analysis with a focus on respiratory, cardiovascular, central nervous system, reproductive, and developmental toxicity was examined to determine if chemical constituents were considered in the interpretation of the toxicity findings. Comparisons between model systems, PM2.5 characteristics, endpoints, and results were made. A vast majority of studies observed adverse effects in vivo following exposure to PM2.5. While limited, investigations that explored connections between chemical components and measured endpoints noted significant associations between biological measurements and a variety of PM2.5 constituents including elements, ions, and organic/elemental carbon, indicating the need for such analysis. Current limitations in available data, including relatively scarce statistical comparisons between collected toxicity and chemical datasets, are provided. Future progress in this field in combination with epidemiologic research examining chemical composition may support regulatory standards of PM2.5 to protect human health.
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Affiliation(s)
- Allie Sidwell
- Department of Biology, University of Mississippi, Mississippi, MS, USA
| | - Samuel Cole Smith
- Department of Bio-Molecular Sciences, University of Mississippi, Mississippi, MS, USA
| | - Courtney Roper
- Department of Bio-Molecular Sciences, University of Mississippi, Mississippi, MS, USA
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Maternal exposure to PM2.5 decreases ovarian reserve in neonatal offspring mice through activating PI3K/AKT/FoxO3a pathway and ROS-dependent NF-κB pathway. Toxicology 2022; 481:153352. [DOI: 10.1016/j.tox.2022.153352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Revised: 10/07/2022] [Accepted: 10/10/2022] [Indexed: 11/19/2022]
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Ma Y, Zhang J, Cai G, Xia Q, Xu S, Hu C, Cao Y, Pan F. Inverse association between ambient particulate matter and semen quality in Central China: Evidence from a prospective cohort study of 15,112 participants. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 833:155252. [PMID: 35427605 DOI: 10.1016/j.scitotenv.2022.155252] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Revised: 04/08/2022] [Accepted: 04/09/2022] [Indexed: 06/14/2023]
Abstract
Emerging evidence indicates that ambient particulate matter (PM) is harmful to male fertility, but the associations between ambient PM exposure and semen quality were inconsistent. This study aimed to quantitatively evaluate the association between ambient PM exposure and semen quality based on a large prospective cohort. Using data from the prospective assisted reproduction cohort in Anhui province, China, we included 15,112 males with 28,267 semen tests, whose partner has undergone assisted reproductive technology from September 1, 2015 to September, 22 2020. Individual ambient PM, gaseous air pollutants, and temperature exposures of the participants during 0-90, 0-9, 10-14, and 70-90 days before semen quality tests were evaluated using inverse distance weighting interpolation. Linear mixed-effects models were conducted to evaluate the relationship between PM2.5 and PM10 exposures and standardized semen quality parameters. Models were adjusted for age, body mass index, smoking, drinking, education attainment, occupation type, sampling month, temperature and the principal component of gaseous air pollutants. PM2.5 and PM10 were inversely associated with sperm concentration, total sperm count, total motility, progressive motility, total motile sperm count, and progressively motile sperm count during 0-90, 0-9, and 70-90 days period (all p < 0.05), but not 10-14 days period. The regression coefficients of PM2.5 exposure on semen quality parameters during 0-90 days period were larger than 0-9 and 70-90 days periods, and the effects of PM2.5 on semen quality parameters were stronger than PM10. Our results showed that ambient PM2.5 and PM10 exposures were associated with semen quality, during 70-90 days and 0-9 days before sampling, and the entire spermatogenesis process. The effects of PM2.5 on semen quality parameters were stronger than PM10, and the long-term effects of PM2.5 and PM10, throughout spermatogenesis, were stronger than the short-term effects.
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Affiliation(s)
- Yubo Ma
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, Anhui, China; The Key Laboratory of Major Autoimmune Diseases, 81 Meishan Road, Anhui Medical University, Hefei, Anhui, China
| | - Jingjing Zhang
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Anhui Medical University, Hefei, China; Reproductive Medicine Center, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Guoqi Cai
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, Anhui, China; The Key Laboratory of Major Autoimmune Diseases, 81 Meishan Road, Anhui Medical University, Hefei, Anhui, China
| | - Qing Xia
- Menzies Institute for Medical Research, University of Tasmania, 17 Liverpool St, Hobart 7000, Tasmania, Australia
| | - Shanshan Xu
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, Anhui, China; The Key Laboratory of Major Autoimmune Diseases, 81 Meishan Road, Anhui Medical University, Hefei, Anhui, China
| | - Chengyang Hu
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, Anhui, China; Department of Humanistic Medicine, School of Humanistic Medicine, Anhui Medical University, 81 Meishan Road, Hefei 230032, China
| | - Yunxia Cao
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Anhui Medical University, Hefei, China; Reproductive Medicine Center, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Anhui Medical University, Hefei, China.
| | - Faming Pan
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, Anhui, China; The Key Laboratory of Major Autoimmune Diseases, 81 Meishan Road, Anhui Medical University, Hefei, Anhui, China.
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21
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Liu J, Huang J, Gao L, Sang Y, Li X, Zhou G, Cao L, Lu H, Zhou X, Ren L. Maternal exposure to PM 2.5 disrupting offspring spermatogenesis through induced sertoli cells apoptosis via inhibin B hypermethylation in mice. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 241:113760. [PMID: 35709672 DOI: 10.1016/j.ecoenv.2022.113760] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Revised: 05/16/2022] [Accepted: 06/06/2022] [Indexed: 06/15/2023]
Abstract
Particulate Matter 2.5 (PM2.5) disrupts endocrine functions and may negatively affect sperm quality and quantity in males; however, the long-term effects and potential mechanisms of this effect are unknown. This study aimed to investigate the epigenetic mechanism of maternal exposure to PM2.5-induced inhibin B hypermethylation in male offspring. In this experiment design, pregnant C57BL/6 mice were treated with two doses of PM2.5 (4.8 and 43.2 mg/kg bw). The membrane control group was given a sampling membrane and the control group received nothing. Following the formation of the vaginal plug, intratracheal instillation of PM2.5 was administered every three days until delivery of the pups. To assess the effect of PM2.5 in vitro, TM4 cells, a Sertoli-like cell line, was treated with different concentrations (0, 25, 50, 100 μg/mL) of PM2.5 for 24 h. The results displayed that Sperm motility, as well as the number of adult offspring, was decreased in the PM2.5 exposed group relative to the untreated controls. Increased vacuolization was observed in the Sertoli cells of mice that were exposed to PM2.5 in utero. The levels of inhibin and testosterone were reduced and the levels of LH and FSH increased in the PM2.5 groups relative to the untreated controls. In vitro, PM2.5 resulted in cell cycle inhibition as well as increased apoptosis in TM4 cells. Moreover, PM2.5-induced inhibin B hypermethylation and activation of the p21/Cleaved Caspase-3 pathway resulted in TM4 cell apoptosis that was rescued through the use of a DNA methylation inhibitor. Together, our data suggest that prenatal exposure to PM2.5 results in inhibin B hypermethylation and can activate the p21/Cleaved Caspase-3 pathway, resulting in Sertoli cell apoptosis, aberrant secretion of androgen binding protein, and decreased testosterone, thus resulting in the inhibition of spermatogenesis.
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Affiliation(s)
- Jianhui Liu
- Central Laboratory, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing Maternal and Child Health Care Hospital, Beijing 100026, China
| | - Jing Huang
- School of Nursing, Peking University, Beijing 100191, China
| | - Leqiang Gao
- Department of Toxicology and Hygienic Chemistry, School of Public Health, Capital Medical University, Beijing 100069, China
| | - Yujian Sang
- Department of Toxicology and Hygienic Chemistry, School of Public Health, Capital Medical University, Beijing 100069, China
| | - Xiangyang Li
- Department of Toxicology and Hygienic Chemistry, School of Public Health, Capital Medical University, Beijing 100069, China
| | - Guiqing Zhou
- Department of Toxicology and Hygienic Chemistry, School of Public Health, Capital Medical University, Beijing 100069, China
| | - Linlin Cao
- Department of Obstetrics and Gynecology, Peking University Third Hospital, China; National Clinical Research Center for Obstetrics and Gynecology (Peking University Third Hospital), China
| | - Hong Lu
- School of Nursing, Peking University, Beijing 100191, China
| | - Xianqing Zhou
- Department of Toxicology and Hygienic Chemistry, School of Public Health, Capital Medical University, Beijing 100069, China.
| | - Lihua Ren
- School of Nursing, Peking University, Beijing 100191, China.
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22
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Zheng P, Chen Z, Shi J, Xue Y, Bai Y, Kang Y, Xu H, Jia G, Wang T. Association between ambient air pollution and blood sex hormones levels in men. ENVIRONMENTAL RESEARCH 2022; 211:113117. [PMID: 35304116 DOI: 10.1016/j.envres.2022.113117] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 03/07/2022] [Accepted: 03/10/2022] [Indexed: 06/14/2023]
Abstract
Concerns are growing over time on the adverse health effects of air pollution. However, the association between ambient air pollution and blood sex hormones in men is poorly understood. We included 72,917 men aged 20-55 years from February 2014 to December 2019 in Beijing, China in this study. Blood testosterone, follicle stimulating hormone, luteinizing hormone, estradiol, and prolactin levels of each participant were measured. We collected exposure data of daily ambient levels of particulate matter ≤10 μm (PM10) and ≤2.5 μm (PM2.5), nitrogen dioxide, sulfur dioxide (SO2), carbon monoxide, and ozone. Generalized linear mixed models were used to analyze the potential association between ambient air pollution exposure and blood sex hormone levels. The results showed that both immediate and short-term cumulative PM2.5, PM10, and SO2 exposure was related to altered serum sex hormone levels in men, especially testosterone. An increase of 10 μg/m3 in PM2.5 and PM10 in the current day was related to a 1.6% (95% confidence interval [CI]: 0.9%-2.3%) and 1.1% (95% CI: 0.5%-1.6%) decrease in testosterone, respectively, and a decreasing tendency of accumulated effects persisted within lag 0-30 days. The present study demonstrated that it is important to control ambient air pollution exposure to reduce effects on the reproductive health of men.
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Affiliation(s)
- Pai Zheng
- Department of Occupational and Environmental Health Sciences, School of Public Health, Peking University, Beijing, 100191, China
| | - Zhangjian Chen
- Department of Occupational and Environmental Health Sciences, School of Public Health, Peking University, Beijing, 100191, China
| | - Jiaqi Shi
- Department of Occupational and Environmental Health Sciences, School of Public Health, Peking University, Beijing, 100191, China
| | - Yuting Xue
- Department of Laboratory Medicine, Peking University Third Hospital, Beijing, 100191, China
| | - Yi Bai
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing, 100191, China
| | - Yulin Kang
- Institute of Environmental Information, Chinese Research Academy of Environmental Sciences, Beijing, China
| | - Huiyu Xu
- Center for Reproductive Medicine, Peking University Third Hospital, Beijing, 100191, China
| | - Guang Jia
- Department of Occupational and Environmental Health Sciences, School of Public Health, Peking University, Beijing, 100191, China.
| | - Tiancheng Wang
- Department of Laboratory Medicine, Peking University Third Hospital, Beijing, 100191, China.
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23
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Shi F, Zhang Z, Cui H, Wang J, Wang Y, Tang Y, Yang W, Zou P, Ling X, Han F, Liu J, Chen Q, Liu C, Cao J, Ao L. Analysis by transcriptomics and metabolomics for the proliferation inhibition and dysfunction through redox imbalance-mediated DNA damage response and ferroptosis in male reproduction of mice and TM4 Sertoli cells exposed to PM 2.5. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 238:113569. [PMID: 35512470 DOI: 10.1016/j.ecoenv.2022.113569] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2022] [Revised: 04/12/2022] [Accepted: 04/25/2022] [Indexed: 06/14/2023]
Abstract
Sertoli cells play a pivotal role in the complex spermatogenesis process. This study aimed to investigate the effects of PM2.5 on Sertoli cells using the TM4 cell line and a real time whole-body PM2.5 exposure mouse model, and further explore the underlying mechanisms through the application of metabolomics and transcriptomics. The results in vivo and in vitro showed that PM2.5 reduced Sertoli cells number in seminiferous tubules and inhibited cell proliferation. PM2.5 exposure also induced Sertoli cell dysfunction by increasing androgen binding protein (ABP) concentration, reducing the blood-testis barrier (BTB)-related protein expression, and decreasing glycolysis capacity and lactate production. The results of transcriptomics, metabolomics, and integrative analysis of multi-omics in the TM4 Sertoli cells revealed the activation of xenobiotic metabolism, and the disturbance of glutathione and purine metabolism after PM2.5 exposure. Further tests verified the reduced GSH/GSSG ratio and the elevation of xanthine oxidase (XO) activity in the PM2.5-exposed TM4 cells, indicating that excessive reactive oxygen species (ROS) was generated via metabolic disorder caused by PM2.5. Moreover, the redox imbalance was proved by the increase in the mitochondrial ROS level, superoxide dismutase (SOD) and catalase (CAT) activity, as well as the activation of the Nrf2 antioxidative pathway. Further study found that the redox imbalance caused by PM2.5 induced DNA damage response and cell cycle arrest. Additionally, PM2.5 induced ferroptosis through iron overload and lipid peroxidation. Taken all together, our study provided new insights for understanding proliferation inhibition and dysfunction of TM4 Sertoli cells exposed to PM2.5 via metabolic disorder and redox imbalance-mediated DNA damage response and ferroptosis.
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Affiliation(s)
- Fuquan Shi
- Key Lab of Medical Protection for Electromagnetic Radiation, Ministry of Education of China, Institute of Toxicology, College of Preventive Medicine, Army Medical University (Third Military Medical University), Chongqing 400038, China
| | - Zhonghao Zhang
- Key Lab of Medical Protection for Electromagnetic Radiation, Ministry of Education of China, Institute of Toxicology, College of Preventive Medicine, Army Medical University (Third Military Medical University), Chongqing 400038, China
| | - Haonan Cui
- Key Lab of Medical Protection for Electromagnetic Radiation, Ministry of Education of China, Institute of Toxicology, College of Preventive Medicine, Army Medical University (Third Military Medical University), Chongqing 400038, China
| | - Jiankang Wang
- Key Lab of Medical Protection for Electromagnetic Radiation, Ministry of Education of China, Institute of Toxicology, College of Preventive Medicine, Army Medical University (Third Military Medical University), Chongqing 400038, China
| | - Yimeng Wang
- Key Lab of Medical Protection for Electromagnetic Radiation, Ministry of Education of China, Institute of Toxicology, College of Preventive Medicine, Army Medical University (Third Military Medical University), Chongqing 400038, China
| | - Ying Tang
- Institution of Health and Family Planning Supervision of Wei'yang District of Xi'an City, Xi'an 710016, China
| | - Wang Yang
- Key Lab of Medical Protection for Electromagnetic Radiation, Ministry of Education of China, Institute of Toxicology, College of Preventive Medicine, Army Medical University (Third Military Medical University), Chongqing 400038, China
| | - Peng Zou
- Key Lab of Medical Protection for Electromagnetic Radiation, Ministry of Education of China, Institute of Toxicology, College of Preventive Medicine, Army Medical University (Third Military Medical University), Chongqing 400038, China
| | - Xi Ling
- Key Lab of Medical Protection for Electromagnetic Radiation, Ministry of Education of China, Institute of Toxicology, College of Preventive Medicine, Army Medical University (Third Military Medical University), Chongqing 400038, China
| | - Fei Han
- Key Lab of Medical Protection for Electromagnetic Radiation, Ministry of Education of China, Institute of Toxicology, College of Preventive Medicine, Army Medical University (Third Military Medical University), Chongqing 400038, China
| | - Jinyi Liu
- Key Lab of Medical Protection for Electromagnetic Radiation, Ministry of Education of China, Institute of Toxicology, College of Preventive Medicine, Army Medical University (Third Military Medical University), Chongqing 400038, China
| | - Qing Chen
- Key Lab of Medical Protection for Electromagnetic Radiation, Ministry of Education of China, Institute of Toxicology, College of Preventive Medicine, Army Medical University (Third Military Medical University), Chongqing 400038, China
| | - Cuiqing Liu
- School of Basic Medical Sciences and Public Health, Joint China-US Research Center for Environment and Pulmonary Diseases, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Jia Cao
- Key Lab of Medical Protection for Electromagnetic Radiation, Ministry of Education of China, Institute of Toxicology, College of Preventive Medicine, Army Medical University (Third Military Medical University), Chongqing 400038, China.
| | - Lin Ao
- Key Lab of Medical Protection for Electromagnetic Radiation, Ministry of Education of China, Institute of Toxicology, College of Preventive Medicine, Army Medical University (Third Military Medical University), Chongqing 400038, China.
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24
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Mitra S, Patra T, Saha D, Ghosh P, Mustafi SM, Varghese AC, Murmu N. Sub-chronic cadmium and lead compound exposure induces reproductive toxicity and development of testicular germ cell neoplasia in situ in murine model: Attenuative effects of resveratrol. J Biochem Mol Toxicol 2022; 36:e23058. [PMID: 35362238 DOI: 10.1002/jbt.23058] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Revised: 01/27/2022] [Accepted: 03/18/2022] [Indexed: 12/14/2022]
Abstract
Cadmium and lead are widespread, nonbiodegradable heavy metals of perpetual environmental concerns. The present study aimed to evaluate whether sub-chronic exposure to cadmium chloride (CdCl2 ) and lead acetate [Pb(CH3 COO)2 ] induces reproductive toxicity and development of testicular germ cell neoplasia in situ (GCNIS) in swiss albino mice. The effects of resveratrol to reverse the metal-induced toxicity were also analyzed. The mice were randomly divided into four groups for metal treatments and two groups received two different doses of each metal, CdCl2 (0.25 and 0.5 mg/kg) and Pb(CH3 COO)2 (3 and 6 mg/kg). The fourth group received oral doses of 20 mg/kg resveratrol in combination with 0.5 mg/kg CdCl2 or 6 mg/kg Pb(CH3 COO)2 for 16 weeks. Toxic effects of both metals were estimated qualitatively and quantitatively by the alterations in sperm parameters, oxidative stress markers, testicular histology, and protein expressions of the treated mice. Pronounced perturbation of sperm parameters, cellular redox balance were observed with severe distortion of testicular histo-architecture in metal exposed mice. Significant overexpression of Akt cascade and testicular GCNIS marker proteins were recorded in tissues treated with CdCl2 . Notable improvements were observed in all the evaluated parameters of resveratrol cotreated mice groups. Taken together, the findings of this study showed that long-term exposure to Cd and Pb compounds, induced acute reproductive toxicity and initiation of GCNIS development in mice. Conversely, resveratrol consumption abrogated metal-induced perturbation of spermatogenesis, testicular morphology, and the upregulation of Akt cascade proteins along with GCNIS markers, which could have induced the development of testicular cancer.
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Affiliation(s)
- Sreyashi Mitra
- Department of Signal Transduction and Biogenic Amines (STBA), Chittaranjan National Cancer Institute, Kolkata, India
| | - Tapas Patra
- E. Doisy Research Center, Saint Louis University, St. Louis, Missouri, USA
| | - Depanwita Saha
- Department of Signal Transduction and Biogenic Amines (STBA), Chittaranjan National Cancer Institute, Kolkata, India
| | - Paramita Ghosh
- Department of Signal Transduction and Biogenic Amines (STBA), Chittaranjan National Cancer Institute, Kolkata, India
| | | | | | - Nabendu Murmu
- Department of Signal Transduction and Biogenic Amines (STBA), Chittaranjan National Cancer Institute, Kolkata, India
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25
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Ren L, Jiang J, Huang J, Zang Y, Huang Q, Zhang L, Wei J, Lu H, Wu S, Zhou X. Maternal exposure to PM2.5 induces the testicular cell apoptosis in offspring triggered by the UPR-mediated JNK pathway. Toxicol Res (Camb) 2022; 11:226-234. [PMID: 35237427 PMCID: PMC8882805 DOI: 10.1093/toxres/tfab116] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 11/03/2021] [Indexed: 01/28/2023] Open
Abstract
Contemporary exposure to PM2.5 has been reported to disrupt spermatogenesis. However, the subsequent toxicological responses and the mechanisms of male reproductive damage in offspring induced by maternal exposure to PM2.5 remain largely unknown. For the first time, this study aimed to explore the apoptotic response in spermatogenesis of male offspring following maternal exposure to PM2.5 and its mechanisms. The C57BL/6 mice with vaginal plugs were randomly divided into four groups. Mice in the PM2.5 groups were intratracheally exposed to PM2.5 (4.8 mg/kg body weight, 43.2 mg/kg body weight) during pregnancy (every 3 days, six times in total). The mice in the membrane control group were treated similarly to the PM2.5 groups, applying only PM2.5 sampling membrane, while mice in the control group were kept untreated. The results showed that maternal exposure to PM2.5 during pregnancy resulted in structural lesions of the testis, reduced numbers of primary spermatocytes and spermatids, decreased sperm count and quality, shortened diameter of seminiferous tubules, and reduced testosterone and ABP in the offspring testes. Furthermore, cell apoptosis was increased and protein expression of IRE-1/P-JNK/cleaved caspase-12/cleaved caspase-3 was activated. These findings suggested that maternal exposure to PM2.5 may affect spermatogenesis by increasing apoptosis through activation of UPR-mediated JNK apoptotic pathway in offspring testicles and by reducing testosterone secretion.
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Affiliation(s)
- Lihua Ren
- School of Nursing, Peking University, Beijing 100191, China
| | - Jianjun Jiang
- Department of Toxicology, School of Public Health, Peking University, Beijing 100191, China
| | - Jing Huang
- School of Nursing, Peking University, Beijing 100191, China
| | - Yu Zang
- School of Nursing, Peking University, Beijing 100191, China
| | - Qifang Huang
- School of Nursing, Peking University, Beijing 100191, China
| | - Lianshuang Zhang
- Department of Histology and Embryology, BinZhou Medical University, Yan Tai 264003, China
| | - Jialiu Wei
- Department of Epidemiology, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - Hong Lu
- Correspondence address. Department of Maternal and Child Nursing, School of Nursing, Peking University, Beijing 100191, China. Tel: +86-10-82805277; E-mail:
| | - Shaowei Wu
- Department of Occupational and Environmental Health, School of Public Health, Xi'an Jiaotong University, Beijing 100191, China
| | - Xianqing Zhou
- Department of Toxicology and Hygienic Chemistry, School of Public Health, Capital Medical University, Beijing 100069, China
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26
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Madhu NR, Sarkar B, Slama P, Jha NK, Ghorai SK, Jana SK, Govindasamy K, Massanyi P, Lukac N, Kumar D, Kalita JC, Kesari KK, Roychoudhury S. Effect of Environmental Stressors, Xenobiotics, and Oxidative Stress on Male Reproductive and Sexual Health. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2022; 1391:33-58. [PMID: 36472815 DOI: 10.1007/978-3-031-12966-7_3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
This article examines the environmental factor-induced oxidative stress (OS) and their effects on male reproductive and sexual health. There are several factors that induce OS, i.e. radition, metal contamination, xenobiotic compounds, and cigarette smoke and lead to cause toxicity in the cells through metabolic or bioenergetic processes. These environmental factors may produce free radicals and enhance the reactive oxygen species (ROS). Free radicals are molecules that include oxygen and disbalance the amount of electrons that can create major chemical chains in the body and cause oxidation. Oxidative damage to cells may impair male fertility and lead to abnormal embryonic development. Moreover, it does not only cause a vast number of health issues such as ageing, cancer, atherosclerosis, insulin resistance, diabetes mellitus, cardiovascular diseases, ischemia-reperfusion injury, and neurodegenerative disorders but also decreases the motility of spermatozoa while increasing sperm DNA damage, impairing sperm mitochondrial membrane lipids and protein kinases. This chapter mainly focuses on the environmental stressors with further discussion on the mechanisms causing congenital impairments due to poor sexual health and transmitting altered signal transduction pathways in male gonadal tissues.
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Affiliation(s)
- Nithar Ranjan Madhu
- Department of Zoology, Acharya Prafulla Chandra College, New Barrackpore, Kolkata, West Bengal, India
| | - Bhanumati Sarkar
- Department of Botany, Acharya Prafulla Chandra College, New Barrackpore, Kolkata, West Bengal, India
| | - Petr Slama
- Department of Animal Morphology, Physiology and Genetics, Faculty of AgriSciences, Mendel University in Brno, Brno, Czech Republic
| | - Niraj Kumar Jha
- Department of Biotechnology, School of Engineering & Technology (SET), Sharda University, Greater Noida, India
| | | | - Sandip Kumar Jana
- Department of Zoology, Bajkul Milani Mahavidyalaya, Purba Medinipur, West Bengal, India
| | - Kadirvel Govindasamy
- Animal Production Division, ICAR Research Complex for NEH Region, Indian Council of Agricultural Research, Umiam, Meghalaya, India
| | - Peter Massanyi
- Department of Animal Physiology, Faculty of Biotechnology and Food Sciences, Slovak University of Agriculture in Nitra, Nitra, Slovak Republic
| | - Norbert Lukac
- Department of Animal Physiology, Faculty of Biotechnology and Food Sciences, Slovak University of Agriculture in Nitra, Nitra, Slovak Republic
| | - Dhruv Kumar
- School of Health Sciences & Technology, UPES University, Dehradun, Uttarakhand, India
| | - Jogen C Kalita
- Department of Zoology, Gauhati University, Guwahati, India
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27
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Zhu T, Chen X, Qiu H, Liu Y, Mwangi J, Zhao L, Ding W, Lai R, Jin L. Aspirin Alleviates Particulate Matter Induced Asymptomatic Orchitis of Mice via Suppression of cGAS-STING Signaling. Front Immunol 2021; 12:734546. [PMID: 34925318 PMCID: PMC8673441 DOI: 10.3389/fimmu.2021.734546] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Accepted: 11/15/2021] [Indexed: 11/20/2022] Open
Abstract
As an important source of air pollutant, airborne particulate matter (PM) has become a major threat to public health. Orchitis is characterized by acute or chronic testicular inflammation and is a primary cause of male infertility. Although accumulating evidence indicates that PM exposure is associated with increased male infertility rates, the mechanism by which PM is involved is not well understood. Here, we found that short-term PM exposure activated NF-κB signaling in mouse Leydig cells and testes and leading to asymptomatic orchitis. Analyzing the mitochondrial abundance and cGAMP levels in PM exposed mouse Leydig cells, we found that PM exposure induced mitochondrial injury and mtDNA release, leading to inflammation via the cGAS-STING axis. We also found that aspirin-induced acetylation of cGAS inhibited the inflammation in mice after PM exposure, especially in the testes. Moreover, aspirin pretreatment rescued offspring growth in PM-exposed mice. In summary, our study not only provides evidence that PM-induced asymptomatic orchitis in mice may be amenable to aspirin pre-treatment by acetylating cGAS, but also provides a potential explanation for male infertility caused by air pollutants.
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Affiliation(s)
- Tengyu Zhu
- Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences/Key Laboratory of Bioactive Peptides of Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, China.,Kunming College of Life Science, University of Chinese Academy of Sciences, Kunming, China.,College of Life Sciences, Nanjing Agricultural University, Nanjing, China
| | - Xue Chen
- Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences/Key Laboratory of Bioactive Peptides of Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, China.,Kunming College of Life Science, University of Chinese Academy of Sciences, Kunming, China
| | - Huan Qiu
- Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences/Key Laboratory of Bioactive Peptides of Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, China.,Kunming College of Life Science, University of Chinese Academy of Sciences, Kunming, China
| | - Yang Liu
- Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences/Key Laboratory of Bioactive Peptides of Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, China.,Kunming College of Life Science, University of Chinese Academy of Sciences, Kunming, China
| | - James Mwangi
- Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences/Key Laboratory of Bioactive Peptides of Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, China.,Kunming College of Life Science, University of Chinese Academy of Sciences, Kunming, China
| | - Ling Zhao
- Experimental Animal Center, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, China
| | - Wenjun Ding
- Laboratory of Environment and Health, University of Chinese Academy of Sciences, Beijing, China
| | - Ren Lai
- Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences/Key Laboratory of Bioactive Peptides of Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, China.,Kunming College of Life Science, University of Chinese Academy of Sciences, Kunming, China.,Kunming institute of zoology-the Chinese university of Hong Kong (KIZ-CUHK) Joint Laboratory of Bioresources and Molecular Research in Common Diseases, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, China
| | - Lin Jin
- Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences/Key Laboratory of Bioactive Peptides of Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, China.,Kunming College of Life Science, University of Chinese Academy of Sciences, Kunming, China
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28
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Wu H, Yu X, Wang Q, Zeng Q, Chen Y, Lv J, Wu Y, Zhou H, Zhang H, Liu M, Zheng M, Zhao Q, Guo P, Feng W, Zhang X, Tian L. Beyond the mean: Quantile regression to differentiate the distributional effects of ambient PM 2.5 constituents on sperm quality among men. CHEMOSPHERE 2021; 285:131496. [PMID: 34329140 DOI: 10.1016/j.chemosphere.2021.131496] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Revised: 06/16/2021] [Accepted: 07/07/2021] [Indexed: 02/05/2023]
Abstract
Ambient PM2.5 (particulate matter ≤ 2.5 μm in aerodynamic diameter) constituents have been related to mean changes in semen quality, but focusing on the mean response may not well capture distributional and heterogeneous effects of PM2.5 constituents on semen quality. In this study, 2314 semen samples of 622 men between Jan 1, 2019 and Dec 31, 2019 from Guangdong Human Sperm Bank were subjected to semen quality analysis. Daily average concentrations of PM2.5 constituents including 4 water-soluble ions and 15 metals/metalloid were measured for 7 days per month at 3 fixed atmospheric pollutant monitoring stations. We used quantile regression for longitudinal data to examine whether the associations between PM2.5 constituents and quality indicators of semen varied across quantiles of outcome distribution. Heterogeneous associations were found between PM2.5 constituents and sperm quality across different quantiles. An interquartile range (14.0 μg/m3) increase in PM2.5 mass was negatively associated with lower tails of sperm concentration and upper tails of sperm count distribution. PM2.5 vanadium exposure was significantly related to the 90th percentile of sperm count distribution, but not to the lower quantiles. In addition, those subjects with relatively high sperm motility were more susceptible to sulfate, chromium, and manganese constituents in PM2.5. Our results indicate that PM2.5 and certain constituents were associated with sperm quality, especially sperm motility, and the associations are more pronounced in men with relatively high or low sperm motility.
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Affiliation(s)
- Haisheng Wu
- Department of Preventive Medicine, Shantou University Medical College, Shantou, 515041, China
| | - Xiaolin Yu
- Department of Preventive Medicine, Shantou University Medical College, Shantou, 515041, China
| | - Qiling Wang
- National Health Commission Key Laboratory of Male Reproduction and Genetics, Guangzhou, 510600, China; Department of Andrology, Family Planning Special Hospital of Guangdong Province, Guangzhou, 510600, China; Human Sperm Bank of Guangdong Province, Guangzhou, 510600, China
| | - Qinghui Zeng
- Department of Preventive Medicine, Shantou University Medical College, Shantou, 515041, China
| | - Yuliang Chen
- Department of Preventive Medicine, Shantou University Medical College, Shantou, 515041, China
| | - Jiayun Lv
- Guangzhou Center for Disease Control and Prevention, Guangzhou, 510440, China
| | - Yan Wu
- Guangzhou Center for Disease Control and Prevention, Guangzhou, 510440, China
| | - Hongwei Zhou
- Guangzhou Center for Disease Control and Prevention, Guangzhou, 510440, China
| | - Hongfeng Zhang
- Guangzhou Center for Disease Control and Prevention, Guangzhou, 510440, China
| | - Miao Liu
- Guangzhou Center for Disease Control and Prevention, Guangzhou, 510440, China
| | - Murui Zheng
- Guangzhou Center for Disease Control and Prevention, Guangzhou, 510440, China
| | - Qingguo Zhao
- National Health Commission Key Laboratory of Male Reproduction and Genetics, Guangzhou, 510600, China
| | - Pi Guo
- Department of Preventive Medicine, Shantou University Medical College, Shantou, 515041, China.
| | - Wenru Feng
- Guangzhou Center for Disease Control and Prevention, Guangzhou, 510440, China.
| | - Xinzong Zhang
- National Health Commission Key Laboratory of Male Reproduction and Genetics, Guangzhou, 510600, China; Department of Andrology, Family Planning Special Hospital of Guangdong Province, Guangzhou, 510600, China; Human Sperm Bank of Guangdong Province, Guangzhou, 510600, China.
| | - Linwei Tian
- Division of Epidemiology and Biostatistics, School of Public Health, The University of Hong Kong, Hong Kong
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29
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Cen C, Wang F, Xiong K, Jiang L, Hou X. Protective effects of Coridius chinensis extracts on rat reproductive damage induced by manganese. Andrologia 2021; 54:e14326. [PMID: 34820869 PMCID: PMC9285684 DOI: 10.1111/and.14326] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 10/22/2021] [Accepted: 11/04/2021] [Indexed: 11/30/2022] Open
Abstract
Manganese (Mn2+ ) is an environmental pollutant, and testis is one of the main target organs. Coridius chinensis (C. chinensis), a traditional Chinese medicine, has been shown widely used in treating various kinds of pain, nephropathy and erectile dysfunction. In our recent study, we found that Mn2+ exposure caused testicular injury could be rescued in part by the antioxidant activity of C. chinensis extracts (CcE). However, there is dearth of extensive knowledge on the therapeutic effects of C. chinensis on manganese-induced reproductive toxicity. In the present study, Sprague-Dawley (SD) rats were administered manganese chloride alone or co-treated with CcE for 30 consecutive days. Results indicated that C. chinensis mediated suppression of spermatogenic dysfunction, and the number of apoptotic cells was significantly decreased in CcE-treated groups. Furthermore, the disintegrated testicular ultrastructural structure caused by Mn2+ was partially repaired in CcE-treated groups. C. chinensis significantly inhibited Mn2+ -induced decline in biomarkers of blood-testis barrier (BTB) including occludin, claudin1, zonula occludens-1 and junctional adhesion molecule 1, whereas it decreased the expression of focal adhesion kinase (FAK) and c-Src. This study demonstrated that c-Src and FAK might be involved in the repair of Mn2+ -induced testicular injury by C. chinensis, but further research is needed.
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Affiliation(s)
- Changhuo Cen
- Department of Cell Biology, Zunyi Medical University, Zunyi, China
| | - Fengyue Wang
- Department of Cell Biology, Zunyi Medical University, Zunyi, China
| | - Keyi Xiong
- Department of Cell Biology, Zunyi Medical University, Zunyi, China
| | - Lin Jiang
- Department of Cell Biology, Zunyi Medical University, Zunyi, China
| | - Xiaohui Hou
- Department of Cell Biology, Zunyi Medical University, Zunyi, China
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30
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Fu Y, Wei Y, Zhou Y, Wu H, Hong Y, Long C, Wang J, Wu Y, Wu S, Shen L, Wei G. Wnt5a Regulates Junctional Function of Sertoli cells Through PCP-mediated Effects on mTORC1 and mTORC2. Endocrinology 2021; 162:6334711. [PMID: 34338758 DOI: 10.1210/endocr/bqab149] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/19/2021] [Indexed: 12/14/2022]
Abstract
The blood-testis barrier (BTB) and apical ectoplasmic specialization (ES), which are synchronized through the crosstalk of Sertoli cells and Sertoli germ cells, are required for spermatogenesis and sperm release. Here, we show that Wnt5a, a noncanonical Wnt signaling pathway ligand, is predominately expressed in both the BTB and apical ES and has a specific expression pattern during the seminiferous epithelium cycle. We employed siRNA to knockdown Wnt5a expression in testis and Sertoli cells, and then identified elongated spermatids that lost their polarity and were embedded in the seminiferous epithelium. Moreover, phagosomes were found near the tubule lumen. These defects were due to BTB and apical ES disruption. We also verified that the expression level and/or location of BTB-associated proteins, actin binding proteins (ABPs), and F-actin was changed after Wnt5a knockdown in vivo and in vitro. Additionally, we demonstrated that Wnt5a regulated actin dynamics through Ror2-mediated mTORC1 and mTORC2. This study clarified the molecular mechanism of Wnt5a in Sertoli cell junctions through the planar cell polarity (PCP) signaling pathway. Our findings could provide an experimental basis for the clinical diagnosis and treatment of male infertility caused by Sertoli cell junction impairment.
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Affiliation(s)
- Yan Fu
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing, 400014, PR China
- Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Chongqing, 400014, PR China
- Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering; Chongqing Key Laboratory of Pediatrics; Ministry of Education Key Laboratory of Child Development and Disorders; National Clinical Research Center for Child Health and Disorders; China International Science and Technology Cooperation base of Child development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, 400014, PR China
| | - Yuexin Wei
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing, 400014, PR China
- Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Chongqing, 400014, PR China
- Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering; Chongqing Key Laboratory of Pediatrics; Ministry of Education Key Laboratory of Child Development and Disorders; National Clinical Research Center for Child Health and Disorders; China International Science and Technology Cooperation base of Child development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, 400014, PR China
| | - Yu Zhou
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing, 400014, PR China
- Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Chongqing, 400014, PR China
- Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering; Chongqing Key Laboratory of Pediatrics; Ministry of Education Key Laboratory of Child Development and Disorders; National Clinical Research Center for Child Health and Disorders; China International Science and Technology Cooperation base of Child development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, 400014, PR China
| | - Huan Wu
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing, 400014, PR China
- Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Chongqing, 400014, PR China
- Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering; Chongqing Key Laboratory of Pediatrics; Ministry of Education Key Laboratory of Child Development and Disorders; National Clinical Research Center for Child Health and Disorders; China International Science and Technology Cooperation base of Child development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, 400014, PR China
| | - Yifan Hong
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing, 400014, PR China
- Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Chongqing, 400014, PR China
- Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering; Chongqing Key Laboratory of Pediatrics; Ministry of Education Key Laboratory of Child Development and Disorders; National Clinical Research Center for Child Health and Disorders; China International Science and Technology Cooperation base of Child development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, 400014, PR China
| | - Chunlan Long
- Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Chongqing, 400014, PR China
- Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering; Chongqing Key Laboratory of Pediatrics; Ministry of Education Key Laboratory of Child Development and Disorders; National Clinical Research Center for Child Health and Disorders; China International Science and Technology Cooperation base of Child development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, 400014, PR China
| | - Junke Wang
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing, 400014, PR China
- Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Chongqing, 400014, PR China
- Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering; Chongqing Key Laboratory of Pediatrics; Ministry of Education Key Laboratory of Child Development and Disorders; National Clinical Research Center for Child Health and Disorders; China International Science and Technology Cooperation base of Child development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, 400014, PR China
| | - Yuhao Wu
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing, 400014, PR China
- Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Chongqing, 400014, PR China
- Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering; Chongqing Key Laboratory of Pediatrics; Ministry of Education Key Laboratory of Child Development and Disorders; National Clinical Research Center for Child Health and Disorders; China International Science and Technology Cooperation base of Child development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, 400014, PR China
| | - Shengde Wu
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing, 400014, PR China
- Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering; Chongqing Key Laboratory of Pediatrics; Ministry of Education Key Laboratory of Child Development and Disorders; National Clinical Research Center for Child Health and Disorders; China International Science and Technology Cooperation base of Child development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, 400014, PR China
| | - Lianju Shen
- Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Chongqing, 400014, PR China
- Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering; Chongqing Key Laboratory of Pediatrics; Ministry of Education Key Laboratory of Child Development and Disorders; National Clinical Research Center for Child Health and Disorders; China International Science and Technology Cooperation base of Child development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, 400014, PR China
| | - Guanghui Wei
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing, 400014, PR China
- Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering; Chongqing Key Laboratory of Pediatrics; Ministry of Education Key Laboratory of Child Development and Disorders; National Clinical Research Center for Child Health and Disorders; China International Science and Technology Cooperation base of Child development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, 400014, PR China
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31
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Qiu L, Chen M, Wang X, Chen S, Ying Z. PM2.5 Exposure of Mice during Spermatogenesis: A Role of Inhibitor κB Kinase 2 in Pro-Opiomelanocortin Neurons. ENVIRONMENTAL HEALTH PERSPECTIVES 2021; 129:97006. [PMID: 34495743 PMCID: PMC8425520 DOI: 10.1289/ehp8868] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 08/09/2021] [Accepted: 08/19/2021] [Indexed: 06/13/2023]
Abstract
BACKGROUND Epidemiological studies have shown that exposure to ambient fine particulate matter with aerodynamic diameter less than or equal to 2.5 μm (PM2.5) correlates with a decrease in sperm count, but the biological mechanism remains elusive. OBJECTIVES This study tested whether hypothalamic inflammation, an emerging pathophysiological mediator, mediates the development of lower epididymal sperm count due to PM2.5 exposure. METHODS Inhibitor κB kinase 2 (IKK2) was conditionally knocked out either in all neurons or subtypes of hypothalamic neurons of mice. Effects of concentrated ambient PM2.5 (CAP) exposure on hypothalamic inflammation, the hypothalamic-pituitary-gonadal (HPG) axis, and epididymal sperm count of these mouse models were then assessed. Furthermore, to test whether hypothalamic inflammation is sufficient to decrease sperm production, we overexpressed constitutively active IKK2 (IKK2ca) either in all neurons or subtypes of hypothalamic neurons and assessed hypothalamic inflammation, the HPG axis, and sperm production of these overexpression mouse models. RESULTS CAP-exposed wild-type control mice vs. filtered air (FA)-exposed wild-type control mice had a higher expression of hypothalamic inflammatory markers, lower functional indexes of the HPG axis, and a lower epididymal sperm count. In contrast, all these measurements for CAP- vs. FA-exposed mice deficient of IKK2 in all neurons were comparable. We also found that overexpression of IKK2ca in either all neurons or pro-opiomelanocortin (POMC) neurons only, but not in Agouti-related protein (AgRP) neurons only, resulted in lower functional indexes of the HPG axis and a lower epididymal sperm count. Moreover, we showed that CAP- vs. FA-exposed mice deficient of IKK2 in POMC neurons had a comparable expression of hypothalamic inflammatory markers, comparable functional indexes of the HPG axis, and a comparable epididymal sperm count. DISCUSSION This mouse model study shows a causal role of IKK2 of POMC neurons in the development of lower epididymal sperm count due to PM2.5 exposure, providing a mechanistic insight into this emerging pathogenesis. https://doi.org/10.1289/EHP8868.
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Affiliation(s)
- Lianglin Qiu
- Department of Medicine Cardiology Division, University of Maryland School of Medicine, Baltimore, Maryland, USA
- School of Public Health, Nantong University, Nantong, Jiangsu, China
| | - Minjie Chen
- Department of Medicine Cardiology Division, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Xiaoke Wang
- Department of Medicine Cardiology Division, University of Maryland School of Medicine, Baltimore, Maryland, USA
- School of Public Health, Nantong University, Nantong, Jiangsu, China
| | - Sufang Chen
- Department of Medicine Cardiology Division, University of Maryland School of Medicine, Baltimore, Maryland, USA
- The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Zhekang Ying
- Department of Medicine Cardiology Division, University of Maryland School of Medicine, Baltimore, Maryland, USA
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32
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Yi L, Dai J, Chen Y, Tong Y, Li Y, Fu G, Teng Z, Huang J, Quan C, Zhang Z, Zhou T, Zhang L, Shi Y. Reproductive toxicity of cadmium in pubertal male rats induced by cell apoptosis. Toxicol Ind Health 2021; 37:469-480. [PMID: 34128436 DOI: 10.1177/07482337211022615] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Cadmium (Cd) is a heavy metal that is widely present in modern industrial production. It is a known, highly toxic environmental endocrine disruptor. Long-term exposure to Cd can cause varying degrees of damage to the liver, kidney, and reproductive system of organisms, especially the male reproductive system. This study aimed to explore the mechanism of Cd toxicity in the male reproductive system during puberty. Eighteen healthy 6-week-old male Sprague-Dawley rats were randomly divided into three groups (control group, low-dose group, and high-dose group) according to their body weight, with six in each group. Cd (0, 1, and 3 mg/kg/day) was given by gavage for 28 consecutive days. The results showed that Cd exposure to each dose group caused a decrease in the testicular organ coefficient and sperm count, compared with the control group. Cd exposure resulted in significant changes in testicular morphology in the 3 mg/kg/day Cd group. In the 1 and 3 mg/kg/day Cd groups, serum testosterone decreased and apoptosis of testicular cells increased significantly (p < 0.05). In addition, compared with the control group, the activity of glutathione peroxidase and superoxide dismutase in each Cd exposure dose group decreased, but the content of malondialdehyde in the high-dose, 3 mg/kg/day Cd treatment group significantly increased (p < 0.05). Although Cd exposure caused an increase in the messenger RNA (mRNA) levels of Bcl-2, Caspase-3 and Caspase-9 in the testicular tissues (p < 0.05), Bcl-2 expression was unchanged (p > 0.05). The expression level of Akt mRNA in testicular tissue of rats in the high-dose 3 mg/kg/day Cd group was increased (p < 0.05). Our data suggest that Cd affected testosterone levels, and apoptosis was observed in spermatids.
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Affiliation(s)
- Lingna Yi
- School of Public Health, Hubei Province Key Laboratory of Occupational Hazard Identification and Control, 481115Wuhan University of Science and Technology, Wuhan, China
| | - Juan Dai
- 369606Wuhan Centers for Disease Prevention and Control, Wuhan, China
| | - Yong Chen
- Emergency Department, Taikang Tongji (Wuhan) Hospital, Wuhan, China
| | - Yeqing Tong
- Hubei Centers for Disease Prevention and Control, Wuhan, China
| | - You Li
- Tigermed Consulting Ltd, China
| | - Guoqing Fu
- School of Public Health, Hubei Province Key Laboratory of Occupational Hazard Identification and Control, 481115Wuhan University of Science and Technology, Wuhan, China
| | - Zengguang Teng
- School of Public Health, Hubei Province Key Laboratory of Occupational Hazard Identification and Control, 481115Wuhan University of Science and Technology, Wuhan, China
| | - Jufeng Huang
- Hanchuan Centers for Disease Prevention and Control, Hanchuan, China
| | - Chao Quan
- School of Public Health, Hubei Province Key Laboratory of Occupational Hazard Identification and Control, 481115Wuhan University of Science and Technology, Wuhan, China
| | - Zhibing Zhang
- School of Public Health, Hubei Province Key Laboratory of Occupational Hazard Identification and Control, 481115Wuhan University of Science and Technology, Wuhan, China
| | - Ting Zhou
- School of Public Health, Hubei Province Key Laboratory of Occupational Hazard Identification and Control, 481115Wuhan University of Science and Technology, Wuhan, China
| | - Ling Zhang
- School of Public Health, Hubei Province Key Laboratory of Occupational Hazard Identification and Control, 481115Wuhan University of Science and Technology, Wuhan, China
| | - Yuqin Shi
- School of Public Health, Hubei Province Key Laboratory of Occupational Hazard Identification and Control, 481115Wuhan University of Science and Technology, Wuhan, China
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Wu H, Wei Y, Zhou Y, Long C, Hong Y, Fu Y, Zhao T, Wang J, Wu Y, Wu S, Shen L, Wei G. Bisphenol S perturbs Sertoli cell junctions in male rats via alterations in cytoskeletal organization mediated by an imbalance between mTORC1 and mTORC2. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 762:144059. [PMID: 33360459 DOI: 10.1016/j.scitotenv.2020.144059] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Revised: 11/19/2020] [Accepted: 11/22/2020] [Indexed: 06/12/2023]
Abstract
Bisphenol S (BPS) is now used as an alternative of bisphenol A (BPA), but has been implicated in male reproductive dysfunction-including diminished sperm number and quality and altered hormonal concentrations. However, the mechanisms of action subserving these effects remains unclear. In the present study, BPS at doses of 50 mg/kg bw and 100 mg/kg bw caused defects in the integrity of the blood-testis barrier (BTB) and apical ectoplasmic specialization (ES), and we also delineated an underlying molecular mechanism of action. BPS induced F-actin and α-tubulin disorganization in seminiferous tubules, which in turn led to the truncation of actin filaments and microtubules. Additionally, BPS was found to perturb the expression of the actin-binding proteins Arp3 and Eps8, which are critical for the organization of the actin filaments. mTORC1 and mTORC2 manifest opposing roles in Sertoli cell junctional function, and we demonstrated that mTORC1/rpS6/Akt/MMP9 signaling was increased and that mTORC2/rictor activity was also attenuated. In summary, we showed that BPS-induced disruption of the BTB and apical ES perturbed normal spermatogenic function that was mediated by mTORC1 and mTORC2. The imbalance in mTORC1 and mTORC2, in turn, altered the expression of actin-binding proteins, resulting in the impairment of F-actin and MT organization, and inhibited the expression of junctional proteins at the BTB and apical ES.
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Affiliation(s)
- Huan Wu
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing 400014, PR China; Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Chongqing 400014, PR China; Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Chongqing Key Laboratory of Pediatrics, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing 400014, PR China
| | - Yuexin Wei
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing 400014, PR China; Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Chongqing 400014, PR China; Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Chongqing Key Laboratory of Pediatrics, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing 400014, PR China
| | - Yu Zhou
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing 400014, PR China; Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Chongqing 400014, PR China; Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Chongqing Key Laboratory of Pediatrics, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing 400014, PR China
| | - Chunlan Long
- Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Chongqing 400014, PR China; Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Chongqing Key Laboratory of Pediatrics, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing 400014, PR China
| | - Yifan Hong
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing 400014, PR China; Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Chongqing 400014, PR China; Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Chongqing Key Laboratory of Pediatrics, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing 400014, PR China
| | - Yan Fu
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing 400014, PR China; Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Chongqing 400014, PR China; Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Chongqing Key Laboratory of Pediatrics, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing 400014, PR China
| | - Tianxin Zhao
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing 400014, PR China; Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Chongqing 400014, PR China; Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Chongqing Key Laboratory of Pediatrics, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing 400014, PR China
| | - Junke Wang
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing 400014, PR China; Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Chongqing 400014, PR China; Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Chongqing Key Laboratory of Pediatrics, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing 400014, PR China
| | - Yuhao Wu
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing 400014, PR China; Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Chongqing 400014, PR China; Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Chongqing Key Laboratory of Pediatrics, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing 400014, PR China
| | - Shengde Wu
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing 400014, PR China; Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Chongqing Key Laboratory of Pediatrics, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing 400014, PR China
| | - Lianju Shen
- Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Chongqing 400014, PR China; Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Chongqing Key Laboratory of Pediatrics, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing 400014, PR China.
| | - Guanghui Wei
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing 400014, PR China; Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Chongqing Key Laboratory of Pediatrics, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing 400014, PR China
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Yang Y, Feng Y, Huang H, Cui L, Li F. PM2.5 exposure induces reproductive injury through IRE1/JNK/autophagy signaling in male rats. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 211:111924. [PMID: 33486381 DOI: 10.1016/j.ecoenv.2021.111924] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Revised: 01/03/2021] [Accepted: 01/08/2021] [Indexed: 06/12/2023]
Abstract
Fine particulate matter (PM2.5) constitutes the most significant air pollutant that causes health risks. However, the mechanism(s) underlying PM2.5-induced male reproductive injury has not been clarified. In the present study we explored whether PM2.5 activated the inositol-requiring enzyme 1 (IRE1)/c-Jun NH 2-terminal kinase (JNK)/autophagy-signaling pathway, and whether this pathway mediated reproductive injury in male rats. We established a male Sprague-Dawley rat model of PM2.5 (1.5 mg/kg) exposure-induced reproductive injury, and observed the intervention effects of STF083010 (an IRE1 inhibitor, 1 mg/kg). After 4 weeks of exposure, reproductive injury-related indicators and IRE1-cascade protein expression were analyzed. Our results showed that sperm quality and serum testosterone level significantly decreased and apoptotic index increased after exposure to PM2.5. After STF083010 intervention, sperm quality and serum testosterone level were significantly improved, while the apoptotic index was reduced. Under light microscopy, we observed that the structure of spermatogenic cells in the PM2.5 group was loose, and that the numbers of spermatogenic cells and mature spermatozoa were reduced. After STF083010 intervention, the structural damage to spermatogenic cells was improved, and the number of cells shed was reduced. Western blotting analysis showed that the expression of IRE1, phosphorylated JNK (p-JNK), beclin-1, and microtubule-associated protein 1 light chain 3(LC3)II/LC3I proteins was significantly upregulated, and that the expression of p62 protein was significantly downregulated in the PM2.5 group. The concomitant administration of STF083010 significantly antagonized the aforementioned adverse effects. STF083010 exerted specific protective effects on reproductive injury-related effects in male rats exposed to PM2.5, with effects mediated via IRE1/JNK/autophagy signaling.
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Affiliation(s)
- Yang Yang
- Department of Nosocomial Infection Management, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China.
| | - Yajing Feng
- Department of Environmental Health, College of Public Health, Zhengzhou University, Zhengzhou 450001, China
| | - Hui Huang
- Department of Environmental Health, College of Public Health, Zhengzhou University, Zhengzhou 450001, China
| | - Liuxin Cui
- Department of Environmental Health, College of Public Health, Zhengzhou University, Zhengzhou 450001, China
| | - Fuqin Li
- Department of Nosocomial Infection Management, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
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Geng N, Song X, Cao R, Luo Y, A M, Cai Z, Yu K, Gao Y, Ni Y, Zhang H, Chen J. The effect of toxic components on metabolomic response of male SD rats exposed to fine particulate matter. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 272:115922. [PMID: 33139092 DOI: 10.1016/j.envpol.2020.115922] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 10/12/2020] [Accepted: 10/22/2020] [Indexed: 06/11/2023]
Abstract
PM2.5 pollution was associated with numerous adverse health effects. However, PM2.5 induced toxic effects and the relationships with toxic components remain largely unknown. To evaluate the metabolic toxicity of PM2.5 at environmentally relevant doses, investigate the seasonal variation of PM2.5 induced toxicity and the relationship with toxic components, a combination of general pathophysiological tests and metabolomics analysis was conducted in this study to explore the response of SD rats to PM2.5 exposure. The result of general toxicology analysis revealed unconspicuous toxicity of PM2.5 under environmental dose, but winter PM2.5 at high dose caused severe histopathological damage to lung. Metabolomic analysis highlighted significant metabolic disorder induced by PM2.5 even at environmentally relevant doses. Lipid metabolism and GSH metabolism were primarily influenced by PM2.5 exposure due to the high levels of heavy metals. In addition, high levels of organic compounds such as PAHs, PCBs and PCDD/Fs in winter PM2.5 bring multiple overlaps on the toxic pathways, resulting in larger pulmonary toxicity and metabolic toxicity in rats than summer.
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Affiliation(s)
- Ningbo Geng
- Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning, 116023, China
| | - Xiaoyao Song
- Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning, 116023, China
| | - Rong Cao
- Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning, 116023, China
| | - Yun Luo
- Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning, 116023, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Mila A
- School of Environmental and Chemical Engineering, Dalian Jiaotong University, Dalian, Liaoning, 116028, China
| | - Zhengang Cai
- The First Affiliated Hospital of Dalian Medical University, 116011, Liaoning, China
| | - Kejie Yu
- The First Affiliated Hospital of Dalian Medical University, 116011, Liaoning, China
| | - Yuan Gao
- Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning, 116023, China
| | - Yuwen Ni
- Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning, 116023, China
| | - Haijun Zhang
- Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning, 116023, China
| | - Jiping Chen
- Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning, 116023, China.
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Wang L, Luo D, Liu X, Zhu J, Wang F, Li B, Li L. Effects of PM 2.5 exposure on reproductive system and its mechanisms. CHEMOSPHERE 2021; 264:128436. [PMID: 33032215 DOI: 10.1016/j.chemosphere.2020.128436] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Revised: 08/27/2020] [Accepted: 09/24/2020] [Indexed: 06/11/2023]
Abstract
With the development of human society, haze has become an important form of air pollution. Haze is a mixture of fog and haze, and the main component of haze is fine particulate matter (PM2.5), which is the most important indicator of composite air pollution. Epidemiological studies proved that PM2.5 can break through the respiratory mucosal barrier and enter the human body, causing pathological effects on multiple systems of the body. In the past, people put more attention to PM2.5 in the respiratory system, cardiovascular system, nervous system, etc, and relatively paid less attention to the reproductive system. Recent studies have shown that PM2.5 will accumulate in the reproductive organs through blood-testis barrier, placental barrier, epithelial barrier and other barriers protecting reproductive tissues. In addition, PM2.5 can disrupt hormone levels, ultimately affecting fertility. Prior studies have shown that oxidative stress, inflammation, apoptosis, and the breakdown of barrier structures are now considered to contribute to reproductive toxicity and may cause damage at the molecular and genetic levels. However, the exact mechanism remains to be elucidated. Our review aims to provide an understanding of the pathological effects of PM2.5 on reproductive system and the existing injury mechanism.
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Affiliation(s)
- Lingjuan Wang
- Tianjin Medical University General Hospital, Tianjin, 300211, China; Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Dan Luo
- Department of Cardiovascular Surgery, The 940th Hospital of Joint Logistics Support Force of People's Liberation Army, Lanzhou, 730000, China
| | - Xiaolong Liu
- Tianjin Medical University General Hospital, Tianjin, 300211, China
| | - Jianqiang Zhu
- Department of Urology, Tianjin Institute of Urology, The Second Hospital, Tianjin Medical University, Tianjin, 300211, China
| | - Fengli Wang
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China.
| | - Bin Li
- Tianjin Medical University General Hospital, Tianjin, 300211, China; State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; Department of Urology, Tianjin Institute of Urology, The Second Hospital, Tianjin Medical University, Tianjin, 300211, China.
| | - Liming Li
- Tianjin Medical University General Hospital, Tianjin, 300211, China
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Bai X, Tang Y, Li Q, Chen Y, Liu D, Liu G, Fan X, Ma R, Wang S, Li L, Zhou K, Zheng Y, Liu Z. Network pharmacology integrated molecular docking reveals the bioactive components and potential targets of Morinda officinalis-Lycium barbarum coupled-herbs against oligoasthenozoospermia. Sci Rep 2021; 11:2220. [PMID: 33500463 PMCID: PMC7838196 DOI: 10.1038/s41598-020-80780-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Accepted: 12/28/2020] [Indexed: 02/06/2023] Open
Abstract
Oligoasthenozoospermia (OA) is one of the most common types of male infertility affecting sperm count and sperm motility. Unfortunately, it is difficult for existing drugs to fundamentally improve the sperm quality of OA patients, because the pathological mechanism of OA has not been fully elucidated yet. Morinda officinalis-Lycium barbarum coupled-herbs (MOLBCH), as traditional Chinese Medicines, has been widely used for treating OA over thousands of years, but its molecular mechanism is still unclear. For this purpose, we adopted a comprehensive approach integrated network pharmacology and molecular docking to reveal the bioactive components and potential targets of MOLBCH against OA. The results showed that MOLBCH alleviated apoptosis, promoted male reproductive function, and reduced oxidant stress in the treatment of OA. Ohioensin-A, quercetin, beta-sitosterol and sitosterol were the key bioactive components. Androgen receptor (AR), Estrogen receptor (ESR1), Mitogen-activated protein kinase 3 (MAPK3), RAC-alpha serine/threonine-protein kinase (AKT1), Glyceraldehyde-3-phosphate dehydrogenase (GAPDH) were the core potential targets. PI3K/Akt signaling pathway, prostate cancer, AGE-RAGE signaling pathway in diabetic complications were the most representative pathways. Moreover, molecular docking was performed to validate the strong binding interactions between the obtained core components and targets. These observations provide deeper insight into the pathogenesis of OA and can be used to design new drugs and develop new therapeutic instructions to treat OA.
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Affiliation(s)
- Xue Bai
- grid.24695.3c0000 0001 1431 9176School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, 100029 China
| | - Yibo Tang
- grid.24695.3c0000 0001 1431 9176School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, 100029 China
| | - Qiang Li
- grid.24695.3c0000 0001 1431 9176School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, 100029 China
| | - Yafei Chen
- grid.24695.3c0000 0001 1431 9176School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, 100029 China
| | - Dan Liu
- grid.24695.3c0000 0001 1431 9176School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, 100029 China
| | - Guimin Liu
- grid.24695.3c0000 0001 1431 9176School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, 100029 China
| | - Xiaolei Fan
- grid.24695.3c0000 0001 1431 9176School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, 100029 China
| | - Ru Ma
- grid.24695.3c0000 0001 1431 9176School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, 100029 China
| | - Shuyan Wang
- grid.24695.3c0000 0001 1431 9176School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, 100029 China
| | - Lingru Li
- grid.24695.3c0000 0001 1431 9176National Institute of TCM Constitution and Preventive Medicine, Beijing University of Chinese Medicine, Beijing, 100029 China
| | - Kailin Zhou
- grid.24695.3c0000 0001 1431 9176School of Humanities, Beijing University of Chinese Medicine, Beijing, 100029 China
| | - Yanfei Zheng
- grid.24695.3c0000 0001 1431 9176National Institute of TCM Constitution and Preventive Medicine, Beijing University of Chinese Medicine, Beijing, 100029 China
| | - Zhenquan Liu
- grid.24695.3c0000 0001 1431 9176School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, 100029 China ,grid.24695.3c0000 0001 1431 9176National Institute of TCM Constitution and Preventive Medicine, Beijing University of Chinese Medicine, Beijing, 100029 China
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Guo Y, Cao Z, Jiao X, Bai D, Zhang Y, Hua J, Liu W, Teng X. Pre-pregnancy exposure to fine particulate matter (PM2.5) increases reactive oxygen species production in oocytes and decrease litter size and weight in mice. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 268:115858. [PMID: 33160740 DOI: 10.1016/j.envpol.2020.115858] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 08/29/2020] [Accepted: 10/13/2020] [Indexed: 06/11/2023]
Abstract
Exposure of females to fine particulate matter ≤2.5 μm in diameter (PM2.5) prior to pregnancy could produce adverse impact on fertility and enhances susceptibility of the offspring to a variety of diseases. In the current study, female C57BL/6 mice (6 weeks of age) were exposed to either concentrated PM2.5 or filtered air (average PM2.5 concentration: 115.60 ± 7.77 vs. 14.07 ± 0.38 μg/m-3) using a whole-body exposure device for 12 weeks. Briefly, PM2.5 exposure decreased anti-Müllerian hormone level (613.40 ± 17.36 vs 759.30 ± 21.90 pg mL-1, P<0.01) and increased reactive oxygen species (ROS) level (45.39 ± 0.82 vs 24.20 ± 0.85 arbitrary unit in fluorescence assay, P<0.01) in oocytes. The exposure increased oocyte degeneration rate (21.5% vs 5.1%, respectively (P<0.01) and decreased the 2-cell formation rate (71.9% vs 86.0%, P < 0.01). Transcriptome profiling using RNA sequencing showed wide spectrum of abnormal expression of genes, particularly those involved in regulating the mitochondrial respiratory complex in oocytes and metabolic processes in blastocysts. The exposure decreased litter size (6 ± 0.37 vs 7 ± 0.26, P<0.05) and weight (1.18 ± 0.02 vs 1.27 ± 0.02 g, P<0.01). In summary, PM2.5 exposure decreased female fertility, possibly through increased ROS production in oocytes and metabolic disturbances in developing embryos. The cause-effect relationship, however, requires further investigation.
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Affiliation(s)
- Yi Guo
- Department of Assisted Reproduction, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai, 201204, China; Department of Cellular and Genetic Medicine, Shanghai Medical College, Fudan University, Shanghai, 200032, China
| | - Zhijuan Cao
- Department of Clinical Research Center (CRC), Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai, 201204, China
| | - Xianting Jiao
- Department of Pediatric Cardiology, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200092, China
| | - Dandan Bai
- Shanghai Key Laboratory of Signaling and Disease Research, School of Life Sciences and Technology, Tongji University, Shanghai, 200092, China
| | - Yalin Zhang
- Shanghai Key Laboratory of Signaling and Disease Research, School of Life Sciences and Technology, Tongji University, Shanghai, 200092, China
| | - Jing Hua
- Women's and Children's Healthcare Department of Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai, 201204, China
| | - Wenqiang Liu
- Department of Assisted Reproduction, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai, 201204, China
| | - Xiaoming Teng
- Department of Assisted Reproduction, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai, 201204, China.
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Yang W, Xu Y, Pan H, Tian F, Wang Y, Xia M, Hu J, Yang M, Tao S, Sun S, Kan H, Li R, Ying Z, Li W. Chronic exposure to diesel exhaust particulate matter impairs meiotic progression during spermatogenesis in a mouse model. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 202:110881. [PMID: 32574863 DOI: 10.1016/j.ecoenv.2020.110881] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 06/04/2020] [Accepted: 06/08/2020] [Indexed: 06/11/2023]
Abstract
Exposure to ambient PM2.5 may correlate with the decline of semen quality, and the underlying biological mechanism has not been fully understood. In the present study, mice were intratracheally instilled with diesel exhaust PM2.5 (DEP), and its effects on the spermatogenic process as well as the alterations of testicular gene expression profile were assessed. Our results showed that chronic exposure to DEP impaired the fertility of male mice without influencing their libido. Compared with Vehicle-exposed group, the sperm count and motility from DEP-exposed mice were significantly decreased. In addition, immunohistological staining of γH2AX and DMC1, biomarkers for meiotic double strand breaks (DSBs), demonstrated that chronic exposure to DEP comprised the repair of meiotic DSBs, thus disrupting the spermatogenesis. Deep RNA sequencing test showed altered expressions of testicular genes including the GnRH signaling pathway. In summary, our research demonstrated that chronic exposure to DEP may disrupt spermatogenesis through targeting the meiotic recombination, providing a new perspective for the research on the male reproductive system damage caused by air pollution.
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Affiliation(s)
- Wei Yang
- NHC Key Lab. of Reproduction Regulation (Shanghai Institute of Planned Parenthood Research), School of Public Health, Fudan University, Shanghai, China.
| | - Yanyi Xu
- Department of Environmental Health, School of Public Health, Fudan University, Shanghai, 200032, China.
| | - Hongjie Pan
- NHC Key Lab. of Reproduction Regulation (Shanghai Institute of Planned Parenthood Research), School of Public Health, Fudan University, Shanghai, China.
| | - Fang Tian
- NHC Key Lab. of Reproduction Regulation (Shanghai Institute of Planned Parenthood Research), School of Public Health, Fudan University, Shanghai, China.
| | - Yuzhu Wang
- NHC Key Lab. of Reproduction Regulation (Shanghai Institute of Planned Parenthood Research), School of Public Health, Fudan University, Shanghai, China.
| | - Minjie Xia
- NHC Key Lab. of Reproduction Regulation (Shanghai Institute of Planned Parenthood Research), School of Public Health, Fudan University, Shanghai, China.
| | - Jingying Hu
- NHC Key Lab. of Reproduction Regulation (Shanghai Institute of Planned Parenthood Research), School of Public Health, Fudan University, Shanghai, China.
| | - Mingjun Yang
- NHC Key Lab. of Reproduction Regulation (Shanghai Institute of Planned Parenthood Research), School of Public Health, Fudan University, Shanghai, China.
| | - Shimin Tao
- NHC Key Lab. of Reproduction Regulation (Shanghai Institute of Planned Parenthood Research), School of Public Health, Fudan University, Shanghai, China.
| | - Shenfei Sun
- NHC Key Lab. of Reproduction Regulation (Shanghai Institute of Planned Parenthood Research), School of Public Health, Fudan University, Shanghai, China.
| | - Haidong Kan
- Department of Environmental Health, School of Public Health, Fudan University, Shanghai, 200032, China.
| | - Runsheng Li
- NHC Key Lab. of Reproduction Regulation (Shanghai Institute of Planned Parenthood Research), School of Public Health, Fudan University, Shanghai, China.
| | - Zhekang Ying
- Department of Medicine Cardiology Division, University of Maryland School of Medicine, Baltimore, MD, 21201, USA.
| | - Weihua Li
- NHC Key Lab. of Reproduction Regulation (Shanghai Institute of Planned Parenthood Research), School of Public Health, Fudan University, Shanghai, China.
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Panax ginseng metabolite (GIM-1) modulates the effects of monobutyl phthalate (MBP) on the GPR30/GPER1 canonical pathway in human Sertoli cells. Reprod Toxicol 2020; 96:209-215. [DOI: 10.1016/j.reprotox.2020.07.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Revised: 06/25/2020] [Accepted: 07/13/2020] [Indexed: 12/31/2022]
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Hajipour S, Farbood Y, Gharib-Naseri MK, Goudarzi G, Rashno M, Maleki H, Bakhtiari N, Nesari A, Khoshnam SE, Dianat M, Sarkaki B, Sarkaki A. Exposure to ambient dusty particulate matter impairs spatial memory and hippocampal LTP by increasing brain inflammation and oxidative stress in rats. Life Sci 2019; 242:117210. [PMID: 31874166 DOI: 10.1016/j.lfs.2019.117210] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2019] [Revised: 12/07/2019] [Accepted: 12/18/2019] [Indexed: 12/27/2022]
Abstract
OBJECTIVES Exposure of healthy subjects to ambient airborne dusty particulate matter (PM) causes brain dysfunction. This study aimed to investigate the effect of sub-chronic inhalation of ambient PM in a designed special chamber to create factual dust storm (DS) conditions on spatial cognition, hippocampal long-term potentiation (LTP), inflammatory cytokines, and oxidative stress in the brain tissue. METHODS Adult male Wistar rats (250-300 g) were randomly divided into four groups: Sham (clean air, the concentration of dusty PM was <150 μg/m3), DS1 (200-500 μg/m3), DS2 (500-2000 μg/m3) and DS3 (2000-8000 μg/m3). Experimental rats were exposed to clean air or different sizes and concentrations of dust PM storm for four consecutive weeks (exposure was during 1-4, 8-11, 15-16 and 20-23 days, 30 min, twice daily) in a real-ambient dust exposure chamber. Subsequently, cognitive performance, hippocampal LTP, blood-brain barrier (BBB) permeability and brain edema of the animals evaluated. As well as, inflammatory cytokines and oxidative stress indexes in the brain tissue measured using ELISA assays. RESULTS Exposing to dust PM impaired spatial memory (p < 0.001), hippocampal LTP (p < 0.001). These disturbances were in line with the severe damage to respiratory system followed by disruption of BBB integrity (p < 0.001), increased brain edema (p < 0.001), inflammatory cytokines (p < 0.001) excretion and oxidative stress (p < 0.001) in brain tissue. CONCLUSIONS Our study showed that exposure to ambient dust PM increased brain edema and BBB permeability, induced memory impairment and hippocampal LTP deficiency by increasing the inflammatory responses and oxidative stress in the brain of the rats.
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Affiliation(s)
- Somayeh Hajipour
- Physiology Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Yaghoob Farbood
- Physiology Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran; Department of Physiology, Medicine Faculty, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | | | - Gholamreza Goudarzi
- Air Pollution and Respiratory Diseases (APRD) Research Center, Environmental Technologies Research Center (ETRC), Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Mohammad Rashno
- Department of Immunology, Medicine Faculty, Cellular and Molecular Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Heidar Maleki
- Air Pollution and Respiratory Diseases (APRD) Research Center, Environmental Technologies Research Center (ETRC), Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran; Environmental Engineer, Faculty of Water Sciences Engineering, Shahid Chamran University of Ahvaz, Ahvaz, Iran
| | - Nima Bakhtiari
- Pain Research Center, Imam Khomeiny Hospital Research and Development Unit, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Ali Nesari
- Physiology Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Seyed Esmaeil Khoshnam
- Physiology Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Mahin Dianat
- Physiology Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran; Department of Physiology, Medicine Faculty, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Behjat Sarkaki
- Physiology Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Alireza Sarkaki
- Physiology Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran; Iran National Science Foundation (INSF), Science Deputy of Presidency, Islamic Republic of Iran, Iran; Department of Physiology, Medicine Faculty, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran; Medicinal Plant Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
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Fang N, Cao C, Wen Y, Wang X, Yuan S, Huang X. MicroRNA profile comparison of testicular tissues derived from successful and unsuccessful microdissection testicular sperm extraction retrieval in non-obstructive azoospermia patients. Reprod Fertil Dev 2019; 31:671-682. [PMID: 30423284 DOI: 10.1071/rd17423] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2017] [Accepted: 10/15/2018] [Indexed: 12/14/2022] Open
Abstract
Non-obstructive azoospermia (NOA) is the most severe clinical diagnosis in cases of male infertility. Although in some cases of NOA spermatozoa can be retrieved by microdissection testicular sperm extraction (micro-TESE) to fertilise eggs through intracytoplasmic sperm injection (ICSI), there remains a lack of potential biomarkers for non-invasive diagnosis before micro-TESE surgery. To determine predictive biomarkers for successful sperm retrieval before micro-TESE, the aim of this study was to explore whether microRNAs (miRNAs) were differentially expressed in testicular tissues in NOA patients in whom sperm retrieval had been successful (SSR) versus those in whom it had been unsuccessful (USR) using next-generation small RNA sequencing (RNA-Seq). In all, 180 miRNAs were identified with significantly altered expression levels between SSR and USR testicular tissues. Of these, the expression of 13 miRNAs was upregulated and that of 167 miRNAs was downregulated in the USR compared with SSR group. Unexpectedly, 86 testicular miRNAs were found to be completely absent in the USR group, but showed high expression in the SSR group, suggesting that these miRNAs may serve as biomarkers for micro-TESE and may also play an essential role in spermatogenesis. Furthermore, Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analyses indicated that the miRNAs that differed significantly between the USR and SSR groups were involved in cell apoptosis, proliferation and differentiation, which are of considerable importance during spermatogenesis. In summary, this study identified a panel of miRNAs highly expressed in testicular tissues of SSR but not USR NOA patients, providing new insights into specific miRNAs that may play important roles in epigenetic regulation during spermatogenesis. The findings provide a basis for further elucidation of the regulatory role of miRNAs in spermatogenesis and clues to identifying useful biomarkers to predict residual spermatogenic loci in NOA patients during treatment with assisted reproductive technologies.
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Affiliation(s)
- Na Fang
- Family Planning Research Institute, Center of Reproductive Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, China
| | - Congcong Cao
- Family Planning Research Institute, Center of Reproductive Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, China
| | - Yujiao Wen
- Family Planning Research Institute, Center of Reproductive Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, China
| | - Xiaoli Wang
- Family Planning Research Institute, Center of Reproductive Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, China
| | - Shuiqiao Yuan
- Family Planning Research Institute, Center of Reproductive Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, China
| | - Xunbin Huang
- Family Planning Research Institute, Center of Reproductive Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, China
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Liu J, Yang C, Yang J, Song X, Han W, Xie M, Cheng L, Xie L, Chen H, Jiang L. Effects of early postnatal exposure to fine particulate matter on emotional and cognitive development and structural synaptic plasticity in immature and mature rats. Brain Behav 2019; 9:e01453. [PMID: 31709780 PMCID: PMC6908876 DOI: 10.1002/brb3.1453] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Revised: 08/16/2019] [Accepted: 09/21/2019] [Indexed: 12/18/2022] Open
Abstract
INTRODUCTION Fine particulate matter (PM2.5) is closely associated with many neurological disorders including neurodegenerative disease, stroke, and brain tumors. However, the toxic effects of PM2.5 on neurodevelopment remain unclear. In this study, we aimed to determine the neurotoxic effects of early postnatal exposure to PM2.5 in immature and mature rats. METHODS We exposed neonatal rats to PM2.5 (2 or 10 mg/kg body weight) through intranasal instillation from postnatal day (PND) 3-15, once a day. Emotional and cognitive development were evaluated using the elevated plus maze, forced swimming, and Morris water maze tests. Hippocampal tissue was collected and subjected to transmission electron microscopy observation and western blot analysis. RESULTS Rats had lower body weight after exposure to high dose of PM2.5. The behavioral test results indicated that high-dose PM2.5 exposure led to increased anxiety-like symptoms in immature and mature rats, apparent depressive-like behaviors in mature rats, and impaired spatial learning and memory abilities in immature rats, and low-dose PM2.5 exposure increased anxiety-like behaviors in immature rats. Further, high-dose PM2.5 exposure contributed to fewer synapses, thinner postsynaptic density, and shorter active zone in immature and mature rats, and also decreased expressions of synaptophysin (SYP), growth associated protein-43 (GAP43), and postsynaptic density-95 (PSD95) in immature rats, SYP and PSD95 in mature rats. Moreover, low-dose PM2.5 exposure diminished the expression of PSD95 in immature rats. In addition, high-dose PM2.5 exposure reduced brain-derived neurotrophic factor (BDNF) expression and cAMP response element binding protein (CREB) phosphorylation in both immature and mature rats, and low-dose PM2.5 exposure lessened BDNF expression and CREB phosphorylation in immature rats. CONCLUSIONS Our findings indicate that PM2.5 impairs emotional and cognitive development by disrupting structural synaptic plasticity, possibly via the CREB/BDNF signaling pathway.
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Affiliation(s)
- Jie Liu
- Pediatric Research Institute, Ministry of Education Key Laboratory of Child Development and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing Key Laboratory of Pediatrics, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Chen Yang
- Pediatric Research Institute, Ministry of Education Key Laboratory of Child Development and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing Key Laboratory of Pediatrics, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Jing Yang
- Pediatric Research Institute, Ministry of Education Key Laboratory of Child Development and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing Key Laboratory of Pediatrics, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Xiaojie Song
- Pediatric Research Institute, Ministry of Education Key Laboratory of Child Development and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing Key Laboratory of Pediatrics, Children's Hospital of Chongqing Medical University, Chongqing, China.,Department of Neurology, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Wei Han
- Pediatric Research Institute, Ministry of Education Key Laboratory of Child Development and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing Key Laboratory of Pediatrics, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Mingdan Xie
- Pediatric Research Institute, Ministry of Education Key Laboratory of Child Development and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing Key Laboratory of Pediatrics, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Li Cheng
- Pediatric Research Institute, Ministry of Education Key Laboratory of Child Development and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing Key Laboratory of Pediatrics, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Lingling Xie
- Pediatric Research Institute, Ministry of Education Key Laboratory of Child Development and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing Key Laboratory of Pediatrics, Children's Hospital of Chongqing Medical University, Chongqing, China.,Department of Neurology, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Hengsheng Chen
- Pediatric Research Institute, Ministry of Education Key Laboratory of Child Development and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing Key Laboratory of Pediatrics, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Li Jiang
- Pediatric Research Institute, Ministry of Education Key Laboratory of Child Development and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing Key Laboratory of Pediatrics, Children's Hospital of Chongqing Medical University, Chongqing, China.,Department of Neurology, Children's Hospital of Chongqing Medical University, Chongqing, China
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Yang Y, Yang T, Liu S, Cao Z, Zhao Y, Su X, Liao Z, Teng X, Hua J. Concentrated ambient PM 2.5 exposure affects mice sperm quality and testosterone biosynthesis. PeerJ 2019; 7:e8109. [PMID: 31799077 PMCID: PMC6885350 DOI: 10.7717/peerj.8109] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Accepted: 10/28/2019] [Indexed: 12/18/2022] Open
Abstract
Background Studies suggested that PM2.5 exposure could lead to adverse reproductive effects on male animals. However, the underlying mechanism is still not clear. Besides, animals in the majority of previous studies were exposed to PM2.5 through intratracheal instillation which should be improved. In addition, limited amount of research has been conducted in China where the PM2.5 concentration is higher and the PM2.5 components are different. The aim of this work is to explore the effects of concentrated ambient PM2.5 (CAP) on mice sperm quality and testosterone biosynthesis. Methods A total of 12 male C57BL/6 mice were exposed to filtered air (FA) or CAP for 125 days using the Shanghai Meteorological and Environmental Animal Exposure System. The mice sperm concentration, sperm motility, DNA fragmentation index, high DNA stainability and plasma testosterone were analyzed. Testicular histology and sperm morphology were observed through optical microscope. Testosterone biosynthesis related gene expressions were analyzed using real-time PCR, including cytochrome P450 CHOL side-chain cleavage enzyme (P450scc), steroidogenic acute regulatory protein (StAR), 3β-hydroxysteroid dehydrogenase (3β HSD), 17β-hydroxysteroid dehydrogenase, cytochrome P450 aromatase (P450arom), estrogen receptor (ER), androgen receptor (AR) and follicle stimulating hormone receptor (FSHR). Results Exposure to CAP resulted in disturbance of various stages of spermatogenesis and significant higher percentage of abnormal sperm (FA vs. CAP: 24.37% vs. 44.83%) in mice testis. CAP exposure significantly decreased sperm concentration (43.00 × 106 vs. 25.33 × 106) and motility (PR: 63.58% vs. 55.15%; PR + NP: 84.00% vs. 77.08%) in epididymis. Plasma testosterone concentration were significantly declined (0.28 ng/ml vs. 0.69 ng/ml) under CAP exposure. Notably, the levels of testosterone biosynthesis related genes, StAR, P450scc, P450arom, ER and FSHR were significantly decreased with CAP exposure. Conclusion Concentrated ambient PM2.5 exposure altered mice sperm concentration, motility and morphology, which might be mediated primarily by the decline in testosterone concentration and testosterone biosynthesis process.
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Affiliation(s)
- Yingying Yang
- Department of Women and Children's Health Care, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai, China.,Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Tingting Yang
- Department of Social Medicine, School of Public Health, Fudan University, Shanghai, China
| | - Shengxin Liu
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Zhijuan Cao
- Department of Women and Children's Health Care, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai, China
| | - Yan Zhao
- Department of Women and Children's Health Care, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai, China
| | - Xiujuan Su
- Department of Women and Children's Health Care, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai, China
| | - Zehuan Liao
- School of Biological Sciences, Nanyang Technological University, Singapore, Singapore.,Department of Microbiology, Tumor and Cell Biology (MTC), Karolinska Institutet, Stockholm, Sweden
| | - Xiaoming Teng
- Department of Assisted Reproductive Medicine, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai, China
| | - Jing Hua
- Department of Women and Children's Health Care, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai, China
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Liu J, Zhang J, Ren L, Wei J, Zhu Y, Duan J, Jing L, Sun Z, Zhou X. Fine particulate matters induce apoptosis via the ATM/P53/CDK2 and mitochondria apoptosis pathway triggered by oxidative stress in rat and GC-2spd cell. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 180:280-287. [PMID: 31100592 DOI: 10.1016/j.ecoenv.2019.05.013] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2019] [Revised: 04/05/2019] [Accepted: 05/05/2019] [Indexed: 06/09/2023]
Abstract
Fine particulate matters (PM2.5) have been associated with male reproductive toxicity because it can penetrate into the lung's gas-exchange region, and spread to the whole body via circulatory system. Previous studies have shown that PM2.5 could induce DNA damage and apoptosis by reactive oxygen species (ROS). The aim of the present study is to determine the exact mechanism and role of apoptosis induced by PM2.5 in spermatocyte cells. Male Sprague-Dawley (SD) rats were treated with normal saline (control group) or PM2.5 with the doses of 1.8, 5.4 and 16.2 mg/kg bw. via intratracheal instillation every 3 days for 30 days. Mouse spermatocyte-derived cells (GC-2spd cells) were treated with various concentrations (0, 50, 100, 200 μg/mL) of PM2.5 for 24 h. The results showed that exposure to PM2.5 resulted in injury of testicular tissue and impaired mitochondria integrity in GC-2spd cells. Moreover, PM2.5 induced DNA damage and apoptosis in GC-2spad cells via ROS generation, and the ATM/P53/CDK2 and mitochondria apoptosis pathway autophagy signal pathway were activated. N-Acetyl-L-cysteine (NAC), a well-known antioxidant, ameliorated DNA damage, and inhibited apoptosis. These findings demonstrated PM2.5 might induce apoptosis via the mitochondrial apoptosis pathway through causing DNA damage resulting from oxidative stress, and finally caused spermatogenesis disorder.
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Affiliation(s)
- Jianhui Liu
- Department of Toxicology and Hygienic Chemistry, School of Public Health, Capital Medical University, Beijing, 100069, China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, China
| | - Jin Zhang
- Department of Toxicology and Hygienic Chemistry, School of Public Health, Capital Medical University, Beijing, 100069, China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, China
| | - Lihua Ren
- Department of Toxicology and Hygienic Chemistry, School of Public Health, Capital Medical University, Beijing, 100069, China; School of Nursing, Peking University, Beijing, 100191, China
| | - Jialiu Wei
- Department of Toxicology and Hygienic Chemistry, School of Public Health, Capital Medical University, Beijing, 100069, China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, China
| | - Yupeng Zhu
- Department of Toxicology and Hygienic Chemistry, School of Public Health, Capital Medical University, Beijing, 100069, China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, China
| | - Junchao Duan
- Department of Toxicology and Hygienic Chemistry, School of Public Health, Capital Medical University, Beijing, 100069, China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, China
| | - Li Jing
- Department of Toxicology and Hygienic Chemistry, School of Public Health, Capital Medical University, Beijing, 100069, China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, China
| | - Zhiwei Sun
- Department of Toxicology and Hygienic Chemistry, School of Public Health, Capital Medical University, Beijing, 100069, China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, China.
| | - Xianqing Zhou
- Department of Toxicology and Hygienic Chemistry, School of Public Health, Capital Medical University, Beijing, 100069, China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, China.
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Li X, Cui J, Yang H, Sun H, Lu R, Gao N, Meng Q, Wu S, Wu J, Aschner M, Chen R. Colonic Injuries Induced by Inhalational Exposure to Particulate-Matter Air Pollution. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2019; 6:1900180. [PMID: 31179224 PMCID: PMC6548988 DOI: 10.1002/advs.201900180] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Revised: 03/09/2019] [Indexed: 05/03/2023]
Abstract
Particulate matter (PM) exposure has been associated with intestinal disorders. Therefore, there is an urgent need to understand the precise molecular mechanism involved and explore potential prevention strategies. In this study, inhaled PM is shown to activate inflammatory pathways in murine colon. In a panel study, it is found that ambient PM levels are significantly associated with elevated number of fecal white blood cells in healthy subjects. Acting as a promoter, PM exposure accelerates chemical carcinogenesis-induced colonic tumor formation in a murine model. Mechanistically, RNA-seq assays suggest activation of phosphoinositide 3-kinase (PI3K)/AKT cascades in chronically PM-exposed human colon mucosal epithelial cells. Ablation of up-stream driver fibroblast growth factor receptor 4 (FGFR4) effectively inhibits inflammation and neoplasia in PM-exposed murine colons. Notably, dietary curcumin supplement is shown to protect against PM-induced colonic injuries in mice. Collectively, these findings identify that PM exposure accelerates colonic tumorigenesis in a PI3K/AKT-dependent manner and suggests potential nutrient supplement for prevention.
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Affiliation(s)
- Xiaobo Li
- Key Laboratory of Environmental Medicine EngineeringMinistry of EducationSchool of Public HealthSoutheast UniversityNanjing210009China
| | - Jian Cui
- Key Laboratory of Environmental Medicine EngineeringMinistry of EducationSchool of Public HealthSoutheast UniversityNanjing210009China
| | - Hongbao Yang
- Center for New Drug Safety Evaluation and ResearchChina Pharmaceutical UniversityNanjing211198China
| | - Hao Sun
- Key Laboratory of Environmental Medicine EngineeringMinistry of EducationSchool of Public HealthSoutheast UniversityNanjing210009China
| | - Runze Lu
- Key Laboratory of Environmental Medicine EngineeringMinistry of EducationSchool of Public HealthSoutheast UniversityNanjing210009China
| | - Na Gao
- Key Laboratory of Environmental Medicine EngineeringMinistry of EducationSchool of Public HealthSoutheast UniversityNanjing210009China
| | - Qingtao Meng
- Key Laboratory of Environmental Medicine EngineeringMinistry of EducationSchool of Public HealthSoutheast UniversityNanjing210009China
| | - Shenshen Wu
- Key Laboratory of Environmental Medicine EngineeringMinistry of EducationSchool of Public HealthSoutheast UniversityNanjing210009China
| | - Jiong Wu
- Jiangsu Key Laboratory for Bioresources of Saline SoilsJiangsu Synthetic Innovation Center for Coastal BioagricultureYancheng Teachers UniversityYancheng224002China
| | - Michael Aschner
- Department of Molecular PharmacologyAlbert Einstein College of MedicineForchheimer 209, 1300 Morris Park AvenueBronxNY10461USA
| | - Rui Chen
- Key Laboratory of Environmental Medicine EngineeringMinistry of EducationSchool of Public HealthSoutheast UniversityNanjing210009China
- Institute for Chemical CarcinogenesisGuangzhou Medical UniversityGuangzhou511436China
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Huang X, Zhang B, Wu L, Zhou Y, Li Y, Mao X, Chen Y, Wang J, Luo P, Ma J, Zhang H, Peng Z, Cui X, Xie S, Huo X, Zhang M, Bao W, Shi T, Liu Y. Association of Exposure to Ambient Fine Particulate Matter Constituents With Semen Quality Among Men Attending a Fertility Center in China. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2019; 53:5957-5965. [PMID: 31013428 DOI: 10.1021/acs.est.8b06942] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Ambient fine particulate matter (PM2.5) exposure has been linked to decreased semen quality, but the associations between PM2.5 constituent exposures and semen quality remain unknown. We enrolled 1081 men whose partners underwent assisted reproductive technology procedures in Wuhan, China in 2014-2015, and examined their semen quality. Daily average concentrations of PM2.5 constituents including 10 metals/metalloid elements and 4 water-soluble ions were continuously determined for 1 week per month at 2 fixed monitoring stations. Linear mixed models were used to examine the associations of exposures to PM2.5 and its constituents with semen quality. Each interquartile range (36.5 μg/m3) increase in PM2.5 exposure was significantly associated with 8.5% (95% CI: 2.3%, 14.4%) and 8.1% (95% CI: 0.7%, 15.0%) decrease in sperm concentration and total sperm number, respectively. Antimony, cadmium, lead, manganese, and nickel exposures were significantly associated with decreased sperm concentration, whereas manganese exposure was also significantly associated with decreased total motility. Nonsmokers were more susceptible to PM2.5 constituent exposures, especially for antimony and cadmium (all P for effect modification <0.05). These findings suggest that PM2.5 and certain constituents may adversely affect semen quality, especially sperm concentration, and provide new evidence to formulate pollution abatement strategies for male reproductive health.
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Affiliation(s)
- Xiji Huang
- Hubei Provincial Key Laboratory for Applied Toxicology , Hubei Provincial Center for Disease Control and Prevention , Wuhan , Hubei 430079 , China
| | - Bing Zhang
- School of Public Health (Shenzhen) , Sun Yat-sen University , Shenzhen , Guangdong 518107 , China
| | - Li Wu
- Reproductive Medical Center, Tongji Hospital, Tongji Medical College , Huazhong University of Science and Technology , Wuhan , Hubei 430030 , China
| | - Yun Zhou
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubating), Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College , Huazhong University of Science and Technology , Wuhan , Hubei 430030 , China
| | - Yonggang Li
- Hubei Provincial Key Laboratory for Applied Toxicology , Hubei Provincial Center for Disease Control and Prevention , Wuhan , Hubei 430079 , China
| | - Xiang Mao
- Institute of Environmental Health and Food Safety , Wuhan Municipal Center for Disease Control and Prevention , Wuhan , Hubei 430015 , China
| | - Ying Chen
- Hubei Provincial Key Laboratory for Applied Toxicology , Hubei Provincial Center for Disease Control and Prevention , Wuhan , Hubei 430079 , China
| | - Jing Wang
- Institute of Health Surveillance, Analysis and Protection , Hubei Provincial Center for Disease Control and Prevention , Wuhan , Hubei 430079 , China
| | - Ping Luo
- Hubei Provincial Key Laboratory for Applied Toxicology , Hubei Provincial Center for Disease Control and Prevention , Wuhan , Hubei 430079 , China
| | - Jixuan Ma
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubating), Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College , Huazhong University of Science and Technology , Wuhan , Hubei 430030 , China
| | - Hai Zhang
- Hubei Provincial Key Laboratory for Applied Toxicology , Hubei Provincial Center for Disease Control and Prevention , Wuhan , Hubei 430079 , China
| | - Zhe Peng
- Hubei Provincial Key Laboratory for Applied Toxicology , Hubei Provincial Center for Disease Control and Prevention , Wuhan , Hubei 430079 , China
| | - Xiuqing Cui
- Hubei Provincial Key Laboratory for Applied Toxicology , Hubei Provincial Center for Disease Control and Prevention , Wuhan , Hubei 430079 , China
| | - Shuguang Xie
- Institute of Health Surveillance, Analysis and Protection , Hubei Provincial Center for Disease Control and Prevention , Wuhan , Hubei 430079 , China
| | - Xixiang Huo
- Institute of Health Surveillance, Analysis and Protection , Hubei Provincial Center for Disease Control and Prevention , Wuhan , Hubei 430079 , China
| | - Ming Zhang
- Tianjin Centers for Disease Control and Prevention , Tianjin 300011 , China
| | - Wei Bao
- Department of Epidemiology, College of Public Health , University of Iowa , Iowa City , Iowa 52242 , United States
| | - Tingming Shi
- Division of Personnel, Science and Education , Hubei Provincial Center for Disease Control and Prevention , Wuhan , Hubei 430079 , China
| | - Yuewei Liu
- Hubei Provincial Key Laboratory for Applied Toxicology , Hubei Provincial Center for Disease Control and Prevention , Wuhan , Hubei 430079 , China
- Depeartment of Epidemiology, School of Public Health , Sun Yat-sen University , Guangzhou , Guangdong 510080 , China
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Wang Y, Zou L, Wu T, Xiong L, Zhang T, Kong L, Xue Y, Tang M. Identification of mRNA-miRNA crosstalk in human endothelial cells after exposure of PM2.5 through integrative transcriptome analysis. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 169:863-873. [PMID: 30597786 DOI: 10.1016/j.ecoenv.2018.11.114] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Revised: 11/20/2018] [Accepted: 11/24/2018] [Indexed: 06/09/2023]
Abstract
PM2.5 has implications in cardiovascular adverse events, but the underlying mechanisms are still obscure. The aim of this study is to evaluate miRNA expression in endothelial cells in response to two realistic doses of PM2.5 and to identify the possible gene targets of deregulated miRNAs through microarray profiling and computational technology. As a result, there are 18 differentially expressed miRNAs between 2.5 μg/cm2 group and the control, of which 11 miRNAs are up-regulated and 7 miRNAs are down-regulated. Relative to the control group, 40 miRNAs are significantly changed in 10 μg/cm2 group with 21 miRNAs being upregulated and 19 miRNAs being downregulated. Interestingly, when two PM2.5-treated groups respectively compared with the control, the expressed trends of 12 miRNAs in 2.5 μg/cm2 group are the same as those in 10 μg/cm2 group, with 8 being upregulated and 4 miRNAs being simultaneously downregulated. Gene ontology (GO) analysis shows that the crucial functional categories of miRNA-targeted genes incorporate transcription-related process and intracellular signal transduction. Pathway analysis reveals that endocytosis, FoxO signaling pathway and PI3K-Akt signaling pathway are involved in the PM2.5-caused cardiotoxicity. Further confirmation by RT-qPCR indicates that PM2.5 could induce the down-regulation of hsa-miR-128-3p, hsa-miR-96-5p, hsa-miR-28-5p, hsa-miR-4478 and hsa-miR-6808-5p, which are in accordance with the results of array data. With the comprehensive analysis of mRNAs and miRNAs, a great number of pairs have been identified, suggesting abnormally expressed miRNAs have functions in the cardiotoxicity of PM2.5, and the function may be achieved through the post-transcriptional regulation of certain genes on the related pathways.
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Affiliation(s)
- Yan Wang
- Key Laboratory of Environmental Medicine Engineering of Ministry of Education, School of Public Health & Collaborative Innovation Center of Suzhou Nano Science and Technology, Southeast University, Nanjing, Jiangsu 210009, China; Jiangsu Key Laboratory for Biomaterials and Devices, Southeast University, Nanjing, Jiangsu 210009, China
| | - Lingyue Zou
- Key Laboratory of Environmental Medicine Engineering of Ministry of Education, School of Public Health & Collaborative Innovation Center of Suzhou Nano Science and Technology, Southeast University, Nanjing, Jiangsu 210009, China
| | - Tianshu Wu
- Key Laboratory of Environmental Medicine Engineering of Ministry of Education, School of Public Health & Collaborative Innovation Center of Suzhou Nano Science and Technology, Southeast University, Nanjing, Jiangsu 210009, China; Jiangsu Key Laboratory for Biomaterials and Devices, Southeast University, Nanjing, Jiangsu 210009, China
| | - Lilin Xiong
- Key Laboratory of Environmental Medicine Engineering of Ministry of Education, School of Public Health & Collaborative Innovation Center of Suzhou Nano Science and Technology, Southeast University, Nanjing, Jiangsu 210009, China; Department of Environmental Health, Nanjing Municipal Center for Disease Control and Prevention, Nanjing, Jiangsu 210003, China
| | - Ting Zhang
- Key Laboratory of Environmental Medicine Engineering of Ministry of Education, School of Public Health & Collaborative Innovation Center of Suzhou Nano Science and Technology, Southeast University, Nanjing, Jiangsu 210009, China; Jiangsu Key Laboratory for Biomaterials and Devices, Southeast University, Nanjing, Jiangsu 210009, China
| | - Lu Kong
- Key Laboratory of Environmental Medicine Engineering of Ministry of Education, School of Public Health & Collaborative Innovation Center of Suzhou Nano Science and Technology, Southeast University, Nanjing, Jiangsu 210009, China; Jiangsu Key Laboratory for Biomaterials and Devices, Southeast University, Nanjing, Jiangsu 210009, China
| | - Yuying Xue
- Key Laboratory of Environmental Medicine Engineering of Ministry of Education, School of Public Health & Collaborative Innovation Center of Suzhou Nano Science and Technology, Southeast University, Nanjing, Jiangsu 210009, China; Jiangsu Key Laboratory for Biomaterials and Devices, Southeast University, Nanjing, Jiangsu 210009, China
| | - Meng Tang
- Key Laboratory of Environmental Medicine Engineering of Ministry of Education, School of Public Health & Collaborative Innovation Center of Suzhou Nano Science and Technology, Southeast University, Nanjing, Jiangsu 210009, China; Jiangsu Key Laboratory for Biomaterials and Devices, Southeast University, Nanjing, Jiangsu 210009, China.
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49
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Qiu L, Chen M, Wang X, Qin X, Chen S, Qian Y, Liu Z, Cao Q, Ying Z. Exposure to Concentrated Ambient PM2.5 Compromises Spermatogenesis in a Mouse Model: Role of Suppression of Hypothalamus-Pituitary-Gonads Axis. Toxicol Sci 2019; 162:318-326. [PMID: 29165613 DOI: 10.1093/toxsci/kfx261] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Epidemiological studies link ambient fine particulate matter (PM2.5) pollution to abnormalities in the male reproductive system. However, few toxicological studies have investigated this potentially important adverse effect of PM2.5 pollution. Therefore, in the present study, we analyzed the effects of PM2.5 exposure on spermatogenesis and hypothalamic-pituitary-gonadal (HPG) axis in a murine model. Fourteen male C57BL/6J mice were subjected to a 4-month exposure to filtered air or concentrated ambient PM2.5 (CAP). Their sperm count, testicular histology, spermatogenic parameters, and the major components of HPG axis were assessed. Exposure to CAP significantly reduced sperm count in the epididymis. This was accompanied by Sertoli cell vacuolization, immature germ cell dislocation, and decreases in pachytene spermatocytes and round spermatids of stage VII seminiferous tubules, suggesting a marked impairment of spermatogenesis in these mice. This impairment of spermatogenesis appeared to be attributable to a suppression of HPG axis subsequent to CAP exposure-induced hypothalamic inflammation, as exposure to CAP significantly increased TNFα and IL1b mRNA levels and meanwhile decreased gonadotropin-releasing hormone mRNA expression in the hypothalamus. Moreover, CAP exposure significantly reduced circulating testosterone and follicle-stimulating hormone, testicular testosterone and mRNA expression of follicle-stimulating hormone target gene SHBG and luteinizing hormone target genes P450scc, 17βHSD, and StAR. The present data demonstrate that exposure to ambient PM2.5 impairs spermatogenesis in murine model, raising the concern over effects of ambient PM2.5 pollution on the male reproductive function.
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Affiliation(s)
- Lianglin Qiu
- Department of Medicine Cardiology Division, School of Medicine, University of Maryland, Baltimore, Maryland 21210.,School of Public Health, Nantong University, Nantong, Jiangsu 226019, P.R. China
| | - Minjie Chen
- Department of Medicine Cardiology Division, School of Medicine, University of Maryland, Baltimore, Maryland 21210.,Department of Environmental Health, School of Public Health, Fudan University, Shanghai 200032, P.R. China
| | - Xiaoke Wang
- Department of Medicine Cardiology Division, School of Medicine, University of Maryland, Baltimore, Maryland 21210.,School of Public Health, Nantong University, Nantong, Jiangsu 226019, P.R. China
| | - Xiaobo Qin
- Department of Medicine Cardiology Division, School of Medicine, University of Maryland, Baltimore, Maryland 21210.,The People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, Guangxi 530021, P.R. China
| | - Sufang Chen
- Department of Medicine Cardiology Division, School of Medicine, University of Maryland, Baltimore, Maryland 21210.,Department of Geriatric Endocrinology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, P.R. China
| | - Yingyun Qian
- School of Public Health, Nantong University, Nantong, Jiangsu 226019, P.R. China
| | - Zhenzhen Liu
- School of Public Health, Nantong University, Nantong, Jiangsu 226019, P.R. China
| | - Qi Cao
- Department of Diagnostic Radiology and Nuclear Medicine, School of Medicine, University of Maryland, Baltimore, Maryland 21210
| | - Zhekang Ying
- Department of Medicine Cardiology Division, School of Medicine, University of Maryland, Baltimore, Maryland 21210.,Department of Environmental Health, School of Public Health, Fudan University, Shanghai 200032, P.R. China
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50
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Liu B, Wu SD, Shen LJ, Zhao TX, Wei Y, Tang XL, Long CL, Zhou Y, He DW, Lin T, Wei GH. Spermatogenesis dysfunction induced by PM 2.5 from automobile exhaust via the ROS-mediated MAPK signaling pathway. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 167:161-168. [PMID: 30326357 DOI: 10.1016/j.ecoenv.2018.09.118] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Revised: 09/26/2018] [Accepted: 09/27/2018] [Indexed: 06/08/2023]
Abstract
Long-term exposure to particulate matter 2.5 (PM2.5) from automobile exhaust impairs spermatogenesis through oxidative stress injury, but the underlying mechanism is unknown. To investigate the toxic mechanism of PM2.5-induced spermatogenesis impairment, we focused on the MAPK signaling pathway. We also examined the effects of treatment with vitamins C and E on spermatogenic function. Male SD rats were divided randomly into three groups: control (0.9% sterilized saline), PM2.5 exposure (20 mg/kg.b.w.), and PM2.5 exposure (20 mg/kg.b.w.) with vitamin intervention (vitamin C, 100 mg/kg.b.w.; vitamin E, 50 mg/kg.b.w.). Male rats showed a marked decline in fertility and decreased sperm quality after PM2.5 exposure. The expression of SOD and Nrf2 was significantly decreased, and that of MDA was increased markedly. The expression of blood-testis barrier-associated proteins, such as ZO-1, occludin, connexin 43, and β-catenin, was significantly decreased, the Bcl-2/Bax ratio was downregulated, and the cleaved caspase-3 level was increased. Phosphorylation of MAPKs, including ERKs, JNKs, and p38, was upregulated. Treatment with vitamins C and E reversed the damage induced by PM2.5 exposure. These results suggest that PM2.5 from automobile exhaust disrupted spermatogenesis via ROS-mediated MAPK pathways, and that a combined vitamin C and E intervention effectively mitigated toxicity in the male reproductive system.
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Affiliation(s)
- Bin Liu
- Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing 400014 China
| | - Sheng-De Wu
- Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing 400014 China; Department of Pediatric Urology Surgery, Children's Hospital of Chongqing Medical University, Chongqing 400014 China
| | - Lian-Ju Shen
- Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing 400014 China.
| | - Tian-Xin Zhao
- Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing 400014 China
| | - Yi Wei
- Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing 400014 China
| | - Xiang-Liang Tang
- Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing 400014 China
| | - Chun-Lan Long
- Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing 400014 China
| | - Yue Zhou
- Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing 400014 China
| | - Da-Wei He
- Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing 400014 China; Department of Pediatric Urology Surgery, Children's Hospital of Chongqing Medical University, Chongqing 400014 China
| | - Tao Lin
- Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing 400014 China; Department of Pediatric Urology Surgery, Children's Hospital of Chongqing Medical University, Chongqing 400014 China
| | - Guang-Hui Wei
- Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing 400014 China; Department of Pediatric Urology Surgery, Children's Hospital of Chongqing Medical University, Chongqing 400014 China.
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