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Sakaguchi K, Tawata S. Giftedness and atypical sexual differentiation: enhanced perceptual functioning through estrogen deficiency instead of androgen excess. Front Endocrinol (Lausanne) 2024; 15:1343759. [PMID: 38752176 PMCID: PMC11094242 DOI: 10.3389/fendo.2024.1343759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Accepted: 04/15/2024] [Indexed: 05/18/2024] Open
Abstract
Syndromic autism spectrum conditions (ASC), such as Klinefelter syndrome, also manifest hypogonadism. Compared to the popular Extreme Male Brain theory, the Enhanced Perceptual Functioning model explains the connection between ASC, savant traits, and giftedness more seamlessly, and their co-emergence with atypical sexual differentiation. Overexcitability of primary sensory inputs generates a relative enhancement of local to global processing of stimuli, hindering the abstraction of communication signals, in contrast to the extraordinary local information processing skills in some individuals. Weaker inhibitory function through gamma-aminobutyric acid type A (GABAA) receptors and the atypicality of synapse formation lead to this difference, and the formation of unique neural circuits that process external information. Additionally, deficiency in monitoring inner sensory information leads to alexithymia (inability to distinguish one's own emotions), which can be caused by hypoactivity of estrogen and oxytocin in the interoceptive neural circuits, comprising the anterior insular and cingulate gyri. These areas are also part of the Salience Network, which switches between the Central Executive Network for external tasks and the Default Mode Network for self-referential mind wandering. Exploring the possibility that estrogen deficiency since early development interrupts GABA shift, causing sensory processing atypicality, it helps to evaluate the co-occurrence of ASC with attention deficit hyperactivity disorder, dyslexia, and schizophrenia based on phenotypic and physiological bases. It also provides clues for understanding the common underpinnings of these neurodevelopmental disorders and gifted populations.
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Affiliation(s)
- Kikue Sakaguchi
- Research Department, National Institution for Academic Degrees and Quality Enhancement of Higher Education (NIAD-QE), Kodaira-shi, Tokyo, Japan
| | - Shintaro Tawata
- Graduate School of Human Sciences, Sophia University, Chiyoda-ku, Tokyo, Japan
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2
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Jalili C, Ranjbar Shamsi R, Amiri B, Kakebaraie S, Jalili F, Nasta TZ. Genotoxic and cytotoxic effects of aflatoxin on the reproductive system: Focus on cell cycle dynamics and apoptosis in testicular tissue. Toxicology 2024; 504:153773. [PMID: 38484789 DOI: 10.1016/j.tox.2024.153773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Revised: 03/09/2024] [Accepted: 03/11/2024] [Indexed: 03/24/2024]
Abstract
Aflatoxins (AFs) are inevitable environmental contaminants that are detrimental to human and animal health. AFs interfere with metabolic processes, metabolizing into different hydroxylated derivatives in the liver, as well as mechanistically induce ROS accumulation, S-phase arrest, DNA damage, and cell apoptosis. Chronic consumption of aflatoxin-contaminated foods can adversely affect the male reproductive system, cause testicular damage, prevent testosterone synthesis, decline sperm quality, and cause infertility. Oxidative stress is the fundamental pathogenesis of aflatoxin-induced reproductive toxicity. The overproduction of reactive oxygen substances can cause testicular failure and disturb the process of spermatogenesis. Mitochondria are susceptible to being impaired by oxidative stress, and its damage is associated with infertility. AFs also disturb the process of spermatogenesis by disrupting the regulation of genes related to the progression of the cell cycle such as cyclins and inducing genes related to apoptosis, thereby weakening fertility and negatively affecting the testicular endocrine potential by suppressing androgen synthesis. Additionally, AFs downregulate ERα expression, potentially negatively impacting spermatogenesis by enhancing the apoptotic mechanism. In this review, we provide new insights into the genotoxic and cytotoxic effects of AFB1 on the male reproductive system with a focus on the cell cycle and apoptosis destruction of testicular tissue.
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Affiliation(s)
- Cyrus Jalili
- Medical Biology Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, Islamic Republic of Iran
| | - Rahele Ranjbar Shamsi
- Department of Clinical Biochemistry, Faculty of Veterinary Medicine, Tabriz, Islamic Republic of Iran
| | - Bita Amiri
- Department of Chemistry and Biochemistry, University of Texas at Arlington, TX, USA
| | - Seyran Kakebaraie
- Medical Biology Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, Islamic Republic of Iran
| | - Faramarz Jalili
- School of Health Administration, Faculty of Health, Dalhousie University, Halifax, NS, Canada
| | - Touraj Zamir Nasta
- Medical Biology Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, Islamic Republic of Iran.
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3
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Navin AK, Aruldhas MM, Mani KK, Navaneethabalakrishnan S, Venkatachalam S, Banu SK. Unraveling Hypothalamus-Pituitary dysregulation: Hypergonadotropism in F 1 progeny due to prenatal exposure to hexavalent chromium. J Biochem Mol Toxicol 2024; 38:e23699. [PMID: 38532648 DOI: 10.1002/jbt.23699] [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: 10/16/2023] [Revised: 02/18/2024] [Accepted: 03/12/2024] [Indexed: 03/28/2024]
Abstract
The endocrine disruptor hexavalent chromium [Cr(VI)] is a proven reproductive toxicant. We recently demonstrated that prenatal Cr(VI) exposure causes testicular resistance to gonadotropins, resulting in hypergonadotropic hypoandrogenism in F1 rats. However, the mechanism driving hypergonadotropism in F1 rats exposed to Cr(VI) prenatally remains an enigma. Therefore, we hypothesized that 'Prenatal Cr(VI) exposure may disrupt steroid hormones-mediated negative feedback regulation of the hypothalamic GnRH, and its receptor in the pituitary of F1 rats, leading to hypergonadotropism.' We administered potassium dichromate (50, 100, or 200 mg/L) to pregnant rats through drinking water between days 9 and 14, and their male F1 offspring were euthanized at 60 days of age. Prenatal Cr(VI) exposure in F1 rats resulted in the accumulation of Cr in the hypothalamus and pituitary. Western blot detected decreased hypothalamic GnRH, Kisspeptin1, and its receptor GPR54, along with diminished ERα, AR, aromatase, and 5α reductase, and GnRH regulatory transcription factors Pit-1 and GATA-4 proteins. Immunohistochemical studies revealed increased immunopositivity of GnRH receptor, AR, 5α reductase, ERα, ERβ, and aromatase proteins in the pituitary, whereas decreased Kisspeptin1, GPR54, and inhibin β. Our findings imply that Cr(VI) exposure during the prenatal period disrupts the hypothalamic Kisspeptin-GPR54-Pit-1/GATA4-GnRH network, boosting the pituitary GnRH receptor. We conclude that prenatal exposure to Cr(VI) alters GnRH expression in the hypothalamus and its receptor in the pituitary of F1 progeny through interfering with the negative feedback effect of androgens and estrogens.
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Affiliation(s)
- Ajit Kumar Navin
- Department of Endocrinology, Dr. A.L.M. Post Graduate Institute of Basic Medical Sciences, University of Madras, Taramani Campus, Taramani-Velachery Link Road, Chennai, Tamil Nadu, India
| | - Mariajoseph Michael Aruldhas
- Department of Endocrinology, Dr. A.L.M. Post Graduate Institute of Basic Medical Sciences, University of Madras, Taramani Campus, Taramani-Velachery Link Road, Chennai, Tamil Nadu, India
| | - Kathiresh Kumar Mani
- Department of Endocrinology, Dr. A.L.M. Post Graduate Institute of Basic Medical Sciences, University of Madras, Taramani Campus, Taramani-Velachery Link Road, Chennai, Tamil Nadu, India
| | - Shobana Navaneethabalakrishnan
- Department of Endocrinology, Dr. A.L.M. Post Graduate Institute of Basic Medical Sciences, University of Madras, Taramani Campus, Taramani-Velachery Link Road, Chennai, Tamil Nadu, India
| | - Sankar Venkatachalam
- Department of Anatomy, Dr. A.L.M. Post Graduate Institute of Basic Medical Sciences, University of Madras, Taramani Campus, Taramani-Velachery Link Road, Chennai, Tamil Nadu, India
| | - Sakhila K Banu
- Department of Veterinary Integrative Biosciences, College of Veterinary Medicine & Biomedical Sciences, TAMU-4458, Texas A&M University, College Station, TX, USA
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Chaichian S, Khodabandehloo F, Haghighi L, Govahi A, Mehdizadeh M, Ajdary M, Varma RS. Toxicological Impact of Bisphenol A on Females' Reproductive System: Review Based on Experimental and Epidemiological Studies. Reprod Sci 2024:10.1007/s43032-024-01521-y. [PMID: 38532232 DOI: 10.1007/s43032-024-01521-y] [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: 11/28/2023] [Accepted: 03/13/2024] [Indexed: 03/28/2024]
Abstract
The study encompassing research papers documented in the last two decades pertaining to the possible influence of bisphenol A (BPA) on the fertility of females are appraised with emphasis on the influence of BPA in reproductive organs (uterus and ovaries) and pregnancy outcomes including discussion on the reproductive process (implantation, estrous cycle, hormone secretion); outcomes reveal a connection amongst BPA and female infertility. Ovary, uterus, and its shape as well as function can alter a person's ability to become pregnant by influencing the hypothalamus-pituitary axis in the ovarian model. Additionally, implantation and the estrous cycle may be affected by BPA. However, more research is warranted to comprehend the underlying action mechanisms and to promptly identify any imminent reproductive harm.
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Affiliation(s)
- Shahla Chaichian
- Endometriosis Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Fatemeh Khodabandehloo
- Department of Genetics and Advanced Medical Technology, Faculty of Medicine, AJA University of Medical Sciences, Tehran, Iran
| | - Ladan Haghighi
- Endometriosis Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Azam Govahi
- Endometriosis Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Mehdi Mehdizadeh
- Reproductive Sciences and Technology Research Center, Department of Anatomy, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Marziyeh Ajdary
- Endometriosis Research Center, Iran University of Medical Sciences, Tehran, Iran.
| | - Rajender S Varma
- Centre of Excellence for Research in Sustainable Chemistry, Department of Chemistry Federal University of São Carlos, São Carlos, SP, 13565-905, Brazil.
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Li S, Zhao B, Yang H, Dai K, Cai Y, Xu H, Chen P, Wang F, Zhang Y. Comprehensive transcriptomic analysis revealing the regulatory dynamics and networks of the pituitary-testis axis in sheep across developmental stages. Front Vet Sci 2024; 11:1367730. [PMID: 38440388 PMCID: PMC10909840 DOI: 10.3389/fvets.2024.1367730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Accepted: 02/05/2024] [Indexed: 03/06/2024] Open
Abstract
Spermatogenesis is a complex process intricately regulated by the hypothalamic-pituitary-testis (HPT) axis. However, research on the regulatory factors governing the HPT axis remains limited. This study addresses this gap by conducting a comprehensive analysis of transcriptomes from the pituitary and testis tissues across various developmental stages, encompassing embryonic day (E120), neonatal period (P0), pre-puberty (P90), and post-puberty day (P270). Utilizing edgeR and WGCNA, we identified stage-specific genes in both the pituitary and testis throughout the four developmental stages. Notably, 380, 242, 34, and 479 stage-specific genes were identified in the pituitary, while 886, 297, 201, and 3,678 genes were identified in the testis. Subsequent analyses unveiled associations between these stage-specific genes and crucial pathways such as the cAMP signaling pathway, GnRH secretion, and male gamete generation. Furthermore, leveraging single-cell data from the pituitary and testis, we identified some signaling pathways involving BMP, HGF, IGF, and TGF-β, highlighting mutual regulation between the pituitary and testis at different developmental stages. This study sheds light on the pivotal role of the pituitary-testis axis in the reproductive process of sheep across four distinct developmental stages. Additionally, it delves into the intricate regulatory networks governing reproduction, offering novel insights into the dynamics of the pituitary-testis axis within the reproductive system.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Yanli Zhang
- Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing, China
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Li T, Bao Y, Xia Y, Meng H, Zhou C, Huang L, Wang X, Lai EY, Jiang P, Mao J. Loss of MTX2 causes mitochondrial dysfunction, podocyte injury, nephrotic proteinuria and glomerulopathy in mice and patients. Int J Biol Sci 2024; 20:937-952. [PMID: 38250156 PMCID: PMC10797693 DOI: 10.7150/ijbs.89916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Accepted: 12/19/2023] [Indexed: 01/23/2024] Open
Abstract
Proteinuria is a common and important clinical manifestation of chronic kidney disease (CKD) and an independent risk factor for the progression of kidney disease. As a component of the glomerular filtration barrier (GFB), podocyte plays a key role in the pathogenesis of glomerular diseases and proteinuria. However, the pathophysiology of glomerular diseases associated with mitochondrial function is incompletely understood. Here, we identified three novel mutations in MTX2, encoding a membrane protein in mitochondria, associated with multisystem manifestations including nephrotic proteinuria and kidney injury in two Chinese patients. Conditional podocyte-specific Mtx2 knockout (Pod-Mtx2-KO) mice present a series of podocyte and glomerular abnormalities from 8 weeks to old age, including microalbuminuria, glomerular mesangial hyperplasia, fusion and effacement of foot process. MTX2 deficiency impaired podocyte functions in vitro, manifested by reductions of adhesion, migration and endocytosis, which were further restored by overexpression of MTX2. Moreover, MTX2 defects led to abnormal mitochondrial structure and dysfunction, evidenced with defects of complex I and III, increased production of reactive oxygen species (ROS), and decreased protein levels of Sam50-CHCHD3-Mitofilin axis in the mitochondrial intermembrane space bridging (MIB) complex which is responsible for maintaining mitochondrial cristae morphology. Collectively, these findings reveal that the normal expression of MTX2 in glomerulus plays an important role in the adhesion, migration, endocytosis, proliferation and other physiological functions of podocytes, which may be realized by maintaining the morphological structure and function of mitochondria. Abnormal expression of MTX2 can lead to mitochondrial dysfunction and structural abnormalities by Sam50-CHCHD3-Mitofilin axis in podocyte, which further induces podocyte injury, glomerular lesions and proteinuria.
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Affiliation(s)
- Ting Li
- Department of Nephrology, The Children's Hospital of Zhejiang University School of Medicine, National Clinical Research Center for Child Health, National Children's Regional Medical Center, Hangzhou, China
| | - Ying Bao
- Department of Pediatric Nephrology, Xi'an Children's Hospital, The Affiliated Children's Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Yu Xia
- Department of Nephrology, The Children's Hospital of Zhejiang University School of Medicine, National Clinical Research Center for Child Health, National Children's Regional Medical Center, Hangzhou, China
| | - Hanyan Meng
- Department of Nephrology, The Children's Hospital of Zhejiang University School of Medicine, National Clinical Research Center for Child Health, National Children's Regional Medical Center, Hangzhou, China
| | - Chao Zhou
- Department of Nephrology, The Children's Hospital of Zhejiang University School of Medicine, National Clinical Research Center for Child Health, National Children's Regional Medical Center, Hangzhou, China
| | - Limin Huang
- Department of Nephrology, The Children's Hospital of Zhejiang University School of Medicine, National Clinical Research Center for Child Health, National Children's Regional Medical Center, Hangzhou, China
| | - Xiaowen Wang
- Department of Pediatric Nephrology, Wuhan Children's Hospital (Wuhan Maternal and Child Healthcare Hospital), Tongji Medical College, Huazhong University of Science & Technology, Wuhan, China
| | - En Yin Lai
- Kidney Disease Center of the First Affiliated Hospital and Department of Physiology, School of Basic Medical Sciences, Zhejiang University School of Medicine, Hangzhou, China
| | - Pingping Jiang
- Department of Nephrology, The Children's Hospital of Zhejiang University School of Medicine, National Clinical Research Center for Child Health, National Children's Regional Medical Center, Hangzhou, China
- Institute of Pharmaceutical Biotechnology, Zhejiang University School of Medicine, Hangzhou, China
| | - Jianhua Mao
- Department of Nephrology, The Children's Hospital of Zhejiang University School of Medicine, National Clinical Research Center for Child Health, National Children's Regional Medical Center, Hangzhou, China
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Yang Y, Xu L, Lei B, Huang Y, Yu M. Effects of trichlorobisphenol A on the expression of proteins and genes associated with puberty initiation in GT1-7 cells and the relevant molecular mechanism. Food Chem Toxicol 2024; 183:114258. [PMID: 38040238 DOI: 10.1016/j.fct.2023.114258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 11/14/2023] [Accepted: 11/22/2023] [Indexed: 12/03/2023]
Abstract
This study evaluated the effects of Cl3BPA on kisspeptin-G-protein coupled receptor 54 (GPR54)/gonadotropin-releasing hormone (GnRH) (KGG) signals and analyzed the roles of estrogen receptor alpha (ERɑ) and G-protein coupled estrogen receptor 1 (GPER1) in regulating KGG signals. The results showed that Cl3BPA at 50 μM increased the levels of intracellular reactive oxygen species (ROS) and GnRH, upregulated the protein levels of kisspeptin and the expression of fshr, lhr and gnrh1 genes related to KGG in GT1-7 cells. In addition, 50 μM Cl3BPA significantly upregulated the phosphorylation of extracellular regulated protein kinases 1/2 (Erk1/2), the protein levels of GPER1 and the expression of the gper1 as well as the most target genes associated with mitogen-activated protein kinase (MAPK)/Erk1/2 pathways. Specific signal inhibitor experiments found that Cl3BPA activated KGG signals by activating the GPER1-mediated MAPK/Erk1/2 signaling pathway at the mRNA level. A docking test further confirmed the interactions between Cl3BPA and GPER1. The findings suggest that Cl3BPA might induce precocious puberty by increasing GnRH secretion together with KGG signaling upregulation, which is driven by GPER1-mediated signaling pathway. By comparison, ClxBPAs with fewer chlorine atoms had more obvious effects on the expression of proteins and partial genes related to KGG signals in GT1-7 cells.
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Affiliation(s)
- Yingxin Yang
- Institute of Environmental Pollution and Health, School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, PR China
| | - Lanbing Xu
- Institute of Environmental Pollution and Health, School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, PR China
| | - Bingli Lei
- Institute of Environmental Pollution and Health, School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, PR China.
| | - Yaoyao Huang
- Institute of Environmental Pollution and Health, School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, PR China
| | - Mengjie Yu
- Institute of Environmental Pollution and Health, School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, PR China
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Barbosa-Moyano H, Zacariotti RL, de Oliveira CA. Validation of enzyme immunoassays for quantifying sex steroid hormones in tropical screech owls (Megascops choliba). Gen Comp Endocrinol 2024; 345:114386. [PMID: 37748527 DOI: 10.1016/j.ygcen.2023.114386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 09/19/2023] [Accepted: 09/20/2023] [Indexed: 09/27/2023]
Abstract
Androgens and estrogens are steroid hormones that regulate reproductive processes in both males and females. Monitoring plasma levels of these steroids or their metabolites present in feces, offers diagnostic support for assessing the reproductive status of animals. Immunoassays are commonly used methods for quantifying these hormones, but their protocols require species-specific validation to ensure reliability. The objective of this study was to perform analytically and biologically validation of enzyme immunoassay (EIA) kits for measuring testosterone (T), estradiol (E2), faecal androgen metabolites (fAM), and faecal estrogenic metabolites (fEM) in the tropical screech owl (Megascops choliba). Serum and fecal samples were collected from six adult females and six males both before and during breeding season, with males' gonadal activity assessed using electroejaculation (EE). The parallelism test confirmed the immunogenic similarity of the antigens in the estradiol and testosterone standards and the antigens in the serum samples and fecal extracts of M. choliba. Additionally, the EIA kits displayed nearly 100% recovery rates, and showed coefficients of variation ranging from 8% to 14% at the intra-assay level and from 10% to 16% at the inter-assay level, underscoring result reliability and consistency. In males, the highest serum T and fAM levels were recorded concurrently with the presence of spermatozoa in samples collected via EE. Although females did not exhibit oviposition events, significantly higher E2 and fEM levels were observed in August compared to May, suggesting potential seasonal variations in estrogenic hormone production. Fecal androgen and estrogen levels were significantly different between sexes in August, with males having higher fAM and females having higher fEM levels. Overall, the immunoassays validated in this study were found to be efficient in diagnosing reproductive activity in owls.
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Affiliation(s)
- Heriberto Barbosa-Moyano
- Departamento de Reprodução Animal, Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo, São Paulo, SP, Brazil.
| | | | - Claudio Alvarenga de Oliveira
- Departamento de Reprodução Animal, Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo, São Paulo, SP, Brazil
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Adise S, Marshall AT, Kan E, Gonzalez MR, Sowell ER. Relating neighborhood deprivation to childhood obesity in the ABCD study: Evidence for theories of neuroinflammation and neuronal stress. Health Psychol 2023; 42:868-877. [PMID: 36469439 PMCID: PMC10239784 DOI: 10.1037/hea0001250] [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] [Indexed: 12/12/2022]
Abstract
OBJECTIVE We evaluated whether relationships between area deprivation (ADI), body mass index (BMI) and brain structure (e.g., cortical thickness, subcortical volume) during preadolescence supported the immunologic model of self-regulation failure (NI) and/or neuronal stress (NS) theories of overeating. The NI theory proposes that ADI causes structural alteration in the brain due to the neuroinflammatory effects of overeating unhealthy foods. The NS theory proposes that ADI-related stress negatively impacts brain structure, which causes stress-related overeating and subsequent obesity. METHOD Data were gathered from the Adolescent Brain Cognitive Development Study (9 to 12 years old; n = 3,087, 51% male). Linear mixed-effects models identified brain regions that were associated with both ADI and BMI; longitudinal associations were evaluated with mediation models. The NI model included ADI and BMI at 9 to 10 years old and brain data at 11 to 12 years old. The NS model included ADI and brain data at 9 to 10 years old and BMI at 11 to 12 years old. RESULTS BMI at 9 to 10 years old partially mediated the relationship between ADI and ventral diencephalon (DC) volume at 11 to 12 years old. Additionally, the ventral DC at 9 to 10 years old partially mediated the relationship between ADI and BMI at 11 to 12 years old, even in youth who at baseline, were of a healthy weight. Results were unchanged when controlling for differences in brain structure and weight across the 2-years. CONCLUSION Greater area deprivation may indicate fewer access to resources that support healthy development, like nutritious food and nonstressful environments. Our findings provide evidence in support of the NI and NS theories of overeating, specifically, with greater ADI influencing health outcomes of obesity via brain structure alterations. (PsycInfo Database Record (c) 2023 APA, all rights reserved).
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Affiliation(s)
- Shana Adise
- Department of Pediatrics, Division of Pediatric Research Administration, Keck School of Medicine of the University of Southern California, Children's Hospital Los Angeles
| | - Andrew T Marshall
- Department of Pediatrics, Division of Neurology, Keck School of Medicine of the University of Southern California, Children's Hospital Los Angeles
| | - Eric Kan
- Department of Pediatrics, Division of Pediatric Research Administration, Keck School of Medicine of the University of Southern California
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Rune GM, Joue G, Sommer T. Effects of 24-hour oral estradiol-valerate administration on hormone levels in men and pre-menopausal women. Psychoneuroendocrinology 2023; 156:106320. [PMID: 37307791 DOI: 10.1016/j.psyneuen.2023.106320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 06/06/2023] [Accepted: 06/07/2023] [Indexed: 06/14/2023]
Abstract
In order to translate the findings from the vast animal literature on the effect of 17β-estradiol (E2) on brain and behavior to humans, a placebo-controlled pharmacological enhancement of E2 levels for at least 24 h is necessary. However, an exogenous increase in E2 for such a prolonged period might affect the endogenous secretion of other (neuroactive) hormones. Such effects would be of relevance for the interpretation of the effects of this pharmacological regimen on cognition and its neural correlates as well as be of basic scientific interest. We therefore administered a double dose of 12 mg of estradiol-valerate (E2V) to men and of 8 mg to naturally cycling women in their low-hormone phase, and assessed the concentration of two steroids critical to hormone regulation: follicle stimulating hormone (FSH) and luteinizing hormone (LH). We also assessed any changes in concentration of the neuroactive hormones progesterone (P4), testosterone (TST), dihydrotestosterone (DHT) and immune-like growth factor 1 (IGF-1). This regimen resulted in similar E2 levels in both sexes (saliva and serum). FSH and LH levels in both sexes were down-regulated to the same degree. P4 concentration decreased in both sexes only in serum but not saliva. TST and DHT levels dropped only in men whereas sex-hormone binding globulin was not affected. Finally, the concentration of IGF-1 decreased in both sexes. Based on previous studies on the effects of these neuroactive hormones, only the degree of downregulation of TST and DHT levels in men might have an impact on brain and behavior, which should be considered when interpreting the effects of the presented E2V regimes.
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Affiliation(s)
- Gabriele M Rune
- Institute of Cell Biology and Neurobiology, Charité Anatomy, Charitéplatz 1, 10117 Berlin, Germany
| | - Gina Joue
- Institute of Systems Neuroscience, University Medical Center Hamburg-Eppendorf, Martinistr. 52, D-20248 Hamburg, Germany
| | - Tobias Sommer
- Institute of Systems Neuroscience, University Medical Center Hamburg-Eppendorf, Martinistr. 52, D-20248 Hamburg, Germany.
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Slighoua M, Amrati FEZ, Chebaibi M, Mahdi I, Al Kamaly O, El Ouahdani K, Drioiche A, Saleh A, Bousta D. Quercetin and Ferulic Acid Elicit Estrogenic Activities In Vivo and In Silico. Molecules 2023; 28:5112. [PMID: 37446770 DOI: 10.3390/molecules28135112] [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: 05/17/2023] [Revised: 06/23/2023] [Accepted: 06/26/2023] [Indexed: 07/15/2023] Open
Abstract
In this study, we examined the sub-acute toxicity of quercetin and ferulic acid and evaluated their effects on protein, cholesterol, and estrogen levels in vivo. Six groups of female Wistar rats were fed by gavage. The first and second groups represent the positive (Clomiphene citrate 10 mg/kg) and negative (NaCl 0.9%) control groups, while the other groups received quercetin and ferulic acid at doses of 5 and 10 mg/kg/day for 28 days. The sub-acute toxicity was monitored by examining the weights, biochemical parameters (AST, ALT, ALP, urea, and CREA), and histological changes in the kidneys and liver of the treated animals. Furthermore, the in vivo estrogenic effects were studied in terms of the serum and ovarian cholesterol levels, serum estradiol, and uterine proteins. Finally, Docking studies were conducted to evaluate the binding affinity of quercetin and ferulic acid for alpha and beta estrogen receptors. Results showed that both compounds were devoid of any signs of nephrotoxicity or hepatotoxicity. Additionally, quercetin and ferulic acid caused significant estrogenic effects evidenced by an increase of 8.7 to 22.48% in serum estradiol, though to a lesser amount than in the reference drug-treated group (64.21%). Moreover, the two compounds decreased the serum cholesterol levels (12.26-32.75%) as well as the ovarian cholesterol level (11.9% to 41.50%) compared to the negative control. The molecular docking in estrogen alpha and estrogen beta active sites showed high affinity of quercetin (-10.444 kcal/mol for estrogen alpha and -10.662 kcal/mol for estrogen beta) and ferulic acid (-6.377 kcal/mol for estrogen alpha and -6.3 kcal/mol for estrogen beta) to these receptors. This study provides promising insights into the potential use of quercetin as a therapeutic agent for the management of female fertility issues.
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Affiliation(s)
- Meryem Slighoua
- Laboratory of Biotechnology, Environment, Agro-Food, and Health (LBEAS), Faculty of Sciences, University 7 Sidi-Mohamed-Ben-Abdellah (USMBA), Fez 30050, Morocco
| | - Fatima Ez-Zahra Amrati
- Laboratory of Biotechnology, Environment, Agro-Food, and Health (LBEAS), Faculty of Sciences, University 7 Sidi-Mohamed-Ben-Abdellah (USMBA), Fez 30050, Morocco
| | - Mohamed Chebaibi
- Biomedical and Translational Research Laboratory, Faculty of Medicine and Pharmacy of Fez, Sidi Mohamed Ben Abdellah University, Fez 30000, Morocco
| | - Ismail Mahdi
- AgroBioSciences Research Division, College for Sustainable Agriculture and Environmental Science, Mohammed VI Polytechnic University, Lot 660-Hay Moulay Rachid, Ben Guerir 43150, Morocco
| | - Omkulthom Al Kamaly
- Department of Pharmaceutical Sciences, College of Pharmacy, Princess Nourah Bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia
| | - Khadija El Ouahdani
- Laboratory of Biotechnology, Environment, Agro-Food, and Health (LBEAS), Faculty of Sciences, University 7 Sidi-Mohamed-Ben-Abdellah (USMBA), Fez 30050, Morocco
| | - Aziz Drioiche
- Laboratory of Innovative Materials and Biotechnology of Natural Resources, Faculty of Sciences, Moulay 19 Ismail University, Meknes 50070, Morocco
| | - Asmaa Saleh
- Department of Pharmaceutical Sciences, College of Pharmacy, Princess Nourah Bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia
| | - Dalila Bousta
- Laboratory of Biotechnology, Environment, Agro-Food, and Health (LBEAS), Faculty of Sciences, University 7 Sidi-Mohamed-Ben-Abdellah (USMBA), Fez 30050, Morocco
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12
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Liang J, Chen D, Xiao Z, Wei S, Liu Y, Wang C, Wang Z, Feng Y, Lei Y, Hu M, Deng J, Wang Y, Zhang Q, Yang Y, Huang Y. Role of miR-300-3p in Leydig cell function and differentiation: A therapeutic target for obesity-related testosterone deficiency. MOLECULAR THERAPY. NUCLEIC ACIDS 2023; 32:879-895. [PMID: 37273781 PMCID: PMC10236194 DOI: 10.1016/j.omtn.2023.03.016] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/08/2022] [Accepted: 03/21/2023] [Indexed: 06/06/2023]
Abstract
MicroRNAs (miRNAs) regulate various cellular functions, but their specific roles in the regulation of Leydig cells (LCs) have yet to be fully understood. Here, we found that the expression of miR-300-3p varied significantly during the differentiation from progenitor LCs (PLCs) to adult LCs (ALCs). High expression of miR-300-3p in PLCs inhibited testosterone production and promoted PLC proliferation by targeting the steroidogenic factor-1 (Sf-1) and transcription factor forkhead box O1 (FoxO1) genes, respectively. As PLCs differentiated into ALCs, the miR-300-3p expression level significantly decreased, which promoted testosterone biosynthesis and suppressed proliferation of ALCs by upregulating SF-1 and FoxO1 expression. The LH/METTL3/SMURF2/SMAD2 cascade pathway controlled miR-300-3p expression, in which luteinizing hormone (LH) upregulated SMAD-specific E3 ubiquitin protein ligase 2 (SMURF2) expression through methyltransferase like 3 (METTL3)-mediated Smurf2 N6-methyladenosine modification. The Smurf2 then suppressed miR-300 transcription by inhibiting SMAD family member 2 (SMAD2) binding to the promoter of miR-300. Notably, miR-300-3p was associated with an obesity-related testosterone deficiency in men and the inhibition of miR-300-3p effectively rescued testosterone deficiency in obese mice. These findings suggested that miR-300-3p plays a pivotal role in LC differentiation and function, and could be a promising diagnostic or therapeutic target for obesity-related testosterone deficiency.
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Affiliation(s)
- Jinlian Liang
- Department of Cell Biology, Jinan University, Guangzhou 510632, China
- Guangdong Province Key Laboratory of Bioengineering Medicine, Guangzhou 510632, China
| | - Derong Chen
- Department of Cell Biology, Jinan University, Guangzhou 510632, China
- Guangdong Province Key Laboratory of Bioengineering Medicine, Guangzhou 510632, China
| | - Ziyan Xiao
- Department of Cell Biology, Jinan University, Guangzhou 510632, China
- Guangdong Province Key Laboratory of Bioengineering Medicine, Guangzhou 510632, China
| | - Siying Wei
- Department of Cell Biology, Jinan University, Guangzhou 510632, China
| | - Yuan Liu
- Department of Cell Biology, Jinan University, Guangzhou 510632, China
| | - Chengzhi Wang
- Department of Endocrinology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, People’s Republic of China
| | - Zhaoyang Wang
- Department of Cell Biology, Jinan University, Guangzhou 510632, China
| | - Yuqing Feng
- Guangdong Province Key Laboratory of Bioengineering Medicine, Guangzhou 510632, China
| | - Yaling Lei
- Department of Cell Biology, Jinan University, Guangzhou 510632, China
| | - Meirong Hu
- Department of Cell Biology, Jinan University, Guangzhou 510632, China
| | - Jingxian Deng
- Guangdong Province Key Laboratory of Bioengineering Medicine, Guangzhou 510632, China
| | - Yuxin Wang
- Department of Cell Biology, Jinan University, Guangzhou 510632, China
| | - Qihao Zhang
- Department of Cell Biology, Jinan University, Guangzhou 510632, China
- Guangdong Province Key Laboratory of Bioengineering Medicine, Guangzhou 510632, China
| | - Yan Yang
- Department of Cell Biology, Jinan University, Guangzhou 510632, China
- Guangdong Province Key Laboratory of Bioengineering Medicine, Guangzhou 510632, China
| | - Yadong Huang
- Department of Cell Biology, Jinan University, Guangzhou 510632, China
- Guangdong Province Key Laboratory of Bioengineering Medicine, Guangzhou 510632, China
- Department of Pharmacology, Jinan University, Guangzhou 510632, China
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13
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Isola JVV, Ko S, Ocañas SR, Stout MB. Role of Estrogen Receptor α in Aging and Chronic Disease. ADVANCES IN GERIATRIC MEDICINE AND RESEARCH 2023; 5:e230005. [PMID: 37425648 PMCID: PMC10327608 DOI: 10.20900/agmr20230005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 07/11/2023]
Abstract
Estrogen receptor alpha (ERα) plays a crucial role in reproductive function in both sexes. It also mediates cellular responses to estrogens in multiple nonreproductive organ systems, many of which regulate systemic metabolic homeostasis and inflammatory processes in mammals. The loss of estrogens and/or ERα agonism during aging is associated with the emergence of several comorbid conditions, particularly in females undergoing the menopausal transition. Emerging data also suggests that male mammals likely benefit from ERα agonism if done in a way that circumvents feminizing characteristics. This has led us, and others, to speculate that tissue-specific ERα agonism may hold therapeutic potential for curtailing aging and chronic disease burden in males and females that are at high-risk of cancer and/or cardiovascular events with traditional estrogen replacement therapies. In this mini-review, we emphasize the role of ERα in the brain and liver, summarizing recent evidence that indicates these two organs systems mediate the beneficial effects of estrogens on metabolism and inflammation during aging. We also discuss how 17α-estradiol administration elicits health benefits in an ERα-dependent manner, which provides proof-of-concept that ERα may be a druggable target for attenuating aging and age-related disease burden.
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Affiliation(s)
- José V. V. Isola
- Aging and Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK 73104, USA
| | - Sunghwan Ko
- Genes & Human Disease Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK 73104, USA
| | - Sarah R. Ocañas
- Genes & Human Disease Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK 73104, USA
- Oklahoma City Veterans Affairs Medical Center, Oklahoma City, OK 73104, USA
| | - Michael B. Stout
- Aging and Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK 73104, USA
- Oklahoma City Veterans Affairs Medical Center, Oklahoma City, OK 73104, USA
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14
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Yuan M, Chen S, Zeng C, Fan Y, Ge W, Chen W. Estrogenic and non-estrogenic effects of bisphenol A and its action mechanism in the zebrafish model: An overview of the past two decades of work. ENVIRONMENT INTERNATIONAL 2023; 176:107976. [PMID: 37236126 DOI: 10.1016/j.envint.2023.107976] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2023] [Revised: 04/11/2023] [Accepted: 05/10/2023] [Indexed: 05/28/2023]
Abstract
Bisphenol A (BPA) is the most simple and predominant component of the Bisphenol family. BPA is widely present in the environment and the human body as a result of its extensive usage in the plastic and epoxy resins of consumer goods like water bottles, food containers, and tableware. Since the 1930s, when BPA's estrogenic activity was first observed, and it was labeled as a "mimic hormone of E2", studies on the endocrine-disrupting effects of BPA then have been widely conducted. As a top vertebrate model for genetic and developmental studies, the zebrafish has caught tremendous attention in the past two decades. By using the zebrafish, the negative effects of BPA either through estrogenic signaling pathways or non-estrogenic signaling pathways were largely found. In this review, we tried to draw a full picture of the current state of knowledge on the estrogenic and non-estrogenic effects of BPA with their mechanisms of action through the zebrafish model of the past two decades, which may help to fully understand the endocrine-disrupting effects of BPA and its action mechanism, and give a direction for the future studies.
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Affiliation(s)
- Mingzhe Yuan
- Department of Biomedical Sciences and Centre of Reproduction, Development and Aging (CRDA), Faculty of Health Sciences, University of Macau, Taipa, Macau, China
| | - Shan Chen
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, School of Marine Sciences, Ningbo University, Ningbo 315211, China
| | - Chu Zeng
- Department of Biomedical Sciences and Centre of Reproduction, Development and Aging (CRDA), Faculty of Health Sciences, University of Macau, Taipa, Macau, China
| | - Yuqin Fan
- Guangdong Provincial Key Laboratory of Conservation and Precision Utilization of Characteristic Agricultural Resources in Mountainous Area, School of Life Sciences, Jiaying University, Meizhou 514015, China
| | - Wei Ge
- Department of Biomedical Sciences and Centre of Reproduction, Development and Aging (CRDA), Faculty of Health Sciences, University of Macau, Taipa, Macau, China.
| | - Weiting Chen
- Guangdong Provincial Key Laboratory of Conservation and Precision Utilization of Characteristic Agricultural Resources in Mountainous Area, School of Life Sciences, Jiaying University, Meizhou 514015, China.
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15
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Zhang Z, Wen R, Zhang W, Ge N, Bo J. Efficacy and mechanism of lipoic acid in the treatment of reproductive injury caused by perfluorooctanoic acid. Exp Ther Med 2023; 25:116. [PMID: 36815965 PMCID: PMC9934001 DOI: 10.3892/etm.2023.11815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Accepted: 10/24/2022] [Indexed: 01/31/2023] Open
Abstract
Environmental pollutants, including perfluorooctanoic acid (PFOA), cause severe reproductive damage to humans and animals. Lipoic acid (LA) is a strong antioxidant that alleviates the oxidative damage caused by heavy metals, environmental toxicants, chemical poisons, etc. Therefore, the present study investigated the curative effect and mechanism of LA in treating spermatogenesis dysfunction caused by PFOA. A rat reproductive injury model was established by gavage of PFOA for consecutive 30 days and then rats were treated with different doses of LA for 42 days. The effects were assessed by ELISA, western blotting, H&E staining and immunofluorescence staining. The results demonstrated that LA had ameliorating effects on PFOA-induced reproductive injury in rats, it increased the sperm counts, and the levels of serum succinate dehydrogenase, lactate dehydrogenase, glutathione peroxidase and superoxide dismutase returned to normal levels following LA treatment. In addition, LA promoted the expression of estradiol, reduced the expression of serum sex hormones, such as follicle-stimulating hormone, androgen receptor (AR) and malondialdehyde in the testes, and restored the structure of seminiferous tubules. Its therapeutic mechanisms include regulating the testicular oxidative stress pathway and hypothalamic-pituitary-testis axis.
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Affiliation(s)
- Zhiyan Zhang
- Clinical Laboratory, First Affiliated Hospital of Baotou Medical College, Inner Mongolia University of Science and Technology, Baotou, Inner Mongolia Autonomous Region 014010, P.R. China
| | - Rong Wen
- Clinical Laboratory, First Affiliated Hospital of Baotou Medical College, Inner Mongolia University of Science and Technology, Baotou, Inner Mongolia Autonomous Region 014010, P.R. China
| | - Wenlong Zhang
- Clinical Laboratory, First Affiliated Hospital of Baotou Medical College, Inner Mongolia University of Science and Technology, Baotou, Inner Mongolia Autonomous Region 014010, P.R. China
| | - Na Ge
- School of Public Health, Baotou Medical College, Inner Mongolia University of Science and Technology, Baotou, Inner Mongolia Autonomous Region 014010, P.R. China
| | - Jinwei Bo
- Clinical Laboratory, First Affiliated Hospital of Baotou Medical College, Inner Mongolia University of Science and Technology, Baotou, Inner Mongolia Autonomous Region 014010, P.R. China,Correspondence to: Professor Jinwei Bo, Clinical Laboratory, First Affiliated Hospital of Baotou Medical College, Inner Mongolia University of Science and Technology, 41 Linyin Road, Baotou, Inner Mongolia Autonomous Region 014010, P.R. China
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16
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Bordbar H, Yahyavi SS, Noorafshan A, Aliabadi E, Naseh M. Resveratrol ameliorates bisphenol A-induced testicular toxicity in adult male rats: a stereological and functional study. Basic Clin Androl 2023; 33:1. [PMID: 36604652 PMCID: PMC9817316 DOI: 10.1186/s12610-022-00174-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Accepted: 10/24/2022] [Indexed: 01/07/2023] Open
Abstract
BACKGROUND Bisphenol A (BPA) is one of the most widely used synthetic chemicals worldwide. BPA as an endocrine disruptor affects the reproductive systems through estrogenic and antiandrogenic proprieties. Resveratrol (RES) as a natural polyphenol and potent antioxidant exhibits protective effects against reproductive toxicity by inhibiting of oxidative stress. 48 male rats were divided into eight groups (n=6), including CONTROL, OLIVE OIL (0.5 ml/ day), Carboxy methylcellulose (CMC) (1 ml of 10 g/l), RES (100mg/kg/day), low dose of BPA (25 mg/kg/day), high dose of BPA (50 mg/kg/day), low dose of BPA + RES, and high dose of BPA + RES. All treatments were done orally per day for 56 days. At the end of the 8th week, blood samples were collected for hormone assays. Then, the sperm parameters were analyzed, and the left testis was removed for stereological study. RESULTS We showed a significant decrease in sperm parameters in the low and high doses of BPA groups compared to control groups (P<0.05). The volume of testicular components as well as the diameter and length of seminiferous tubules significantly reduced (11-64 %), and the total number of the testicular cell types decreased (34-67 %) on average in the low and high doses of BPA groups. Moreover, serum follicle-stimulating hormone (FSH), luteinizing hormone (LH), and testosterone hormones concentration showed a significant reduction in both doses of BPA groups (P<0.01). Nonetheless, treatment with RES could ameliorate all the above-mentioned changes in the low and high doses of BPA groups (P<0.05). CONCLUSIONS RES could prevent BPA-induced testicular structural changes and sperm quality via improving gonadotropin hormones and testosterone levels.
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Affiliation(s)
- Hossein Bordbar
- grid.412571.40000 0000 8819 4698Histomorphometry and Stereology Research Center, Shiraz University of Medical Sciences, Zand Ave., Shiraz, 71348-45794 Iran ,grid.412571.40000 0000 8819 4698Department of Anatomy, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Seyedeh-Saeedeh Yahyavi
- grid.412571.40000 0000 8819 4698Histomorphometry and Stereology Research Center, Shiraz University of Medical Sciences, Zand Ave., Shiraz, 71348-45794 Iran ,grid.412571.40000 0000 8819 4698Department of Anatomy, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Ali Noorafshan
- grid.412571.40000 0000 8819 4698Histomorphometry and Stereology Research Center, Shiraz University of Medical Sciences, Zand Ave., Shiraz, 71348-45794 Iran ,grid.412571.40000 0000 8819 4698Department of Anatomy, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Elham Aliabadi
- grid.412571.40000 0000 8819 4698Department of Anatomy, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Maryam Naseh
- grid.412571.40000 0000 8819 4698Histomorphometry and Stereology Research Center, Shiraz University of Medical Sciences, Zand Ave., Shiraz, 71348-45794 Iran
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17
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Li Y, Xiong Y, Lv L, Li X, Qin Z. Effects of low-dose bisphenol AF on mammal testis development via complex mechanisms: alterations are detectable in both infancy and adulthood. Arch Toxicol 2022; 96:3373-3383. [PMID: 36098747 DOI: 10.1007/s00204-022-03377-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Accepted: 09/07/2022] [Indexed: 11/02/2022]
Abstract
Despite growing concern about adverse effects of bisphenol AF (BPAF) due to its endocrine disrupting properties, there is a lack of toxicity data from low-dose studies and direct evidence linking its adverse effects to endocrine disrupting properties. Here, we investigated the effects of gestational and postnatal exposure to BPAF through drinking water (0.15-15 μg/mL, equivalent to the daily intake of ~ 50 and 5 mg/kg/day) on testis development in mice. We found that like mestranol, 5 mg/kg/day BPAF resulted in remarkable decreases in multiple male reproductive parameters in adulthood, such as the sperm number and serum testosterone level. Notably, 50 μg/kg/day BPAF also caused significant decreases in anogenital distance (AGD), the luteinizing hormone level and spermatocyte number, along with declining trends in sperm number and the serum levels of testosterone and follicle-stimulating hormone. In line with the adverse outcomes observed in adulthood, on postnatal day (PND) 9, we also observed BPAF-caused dose-dependent alterations, including reduced AGD, seminiferous tubule area and numbers of total germ cells, spermatocytes and Leydig cells, coupled with down-regulated expression of male-biased genes in testes. Even when exposure to 5 mg/kg/day BPAF as well as MES was initiated from PND 0, similar alterations in male reproductive parameters were also found on PND 9, along with a decrease in the GnRH content in the hypothalamus; moreover, testicular alterations and the reduction in AGD were partly antagonized by the estrogen receptor (ER) antagonist ICI 182,780, but the reduction of GnRH production was not done, showing that the effects of BPAF on testis development may be partially mediated by ER signaling. In conclusion, all the findings demonstrate that low-dose BPAF can partly disrupt mammal testis development and cause adverse testicular outcomes in adulthood, indicating a potential reproductive risk to mammals including humans. Importantly, our finding that developmental alterations elicited by BPAF have been detectable on PND 9 provides important motivation for the development of effective methods for early detection of adverse effects of estrogenic chemicals on testis development.
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Affiliation(s)
- Yuanyuan Li
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-environmental Sciences, Chinese Academy of Sciences, No. 18, Shuangqing Road, Haidian, 100085, Beijing, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yiming Xiong
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-environmental Sciences, Chinese Academy of Sciences, No. 18, Shuangqing Road, Haidian, 100085, Beijing, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Lin Lv
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-environmental Sciences, Chinese Academy of Sciences, No. 18, Shuangqing Road, Haidian, 100085, Beijing, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xinghong Li
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-environmental Sciences, Chinese Academy of Sciences, No. 18, Shuangqing Road, Haidian, 100085, Beijing, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Zhanfen Qin
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-environmental Sciences, Chinese Academy of Sciences, No. 18, Shuangqing Road, Haidian, 100085, Beijing, China. .,University of Chinese Academy of Sciences, Beijing, 100049, China.
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18
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Oliveira JM, Oliveira IM, Sleiman HK, Dal Forno GO, Romano MA, Romano RM. Consumption of soy isoflavones during the prepubertal phase delays puberty and causes hypergonadotropic hypogonadism with disruption of hypothalamic-pituitary gonadotropins regulation in male rats. Toxicol Lett 2022; 369:1-11. [PMID: 35963426 DOI: 10.1016/j.toxlet.2022.08.004] [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: 01/27/2022] [Revised: 07/17/2022] [Accepted: 08/08/2022] [Indexed: 10/15/2022]
Abstract
Isoflavones are phytoestrogens with recognized estrogenic activity but may also affect testosterone, corticosterone and thyroid hormone levels in experimental models. However, the molecular mechanisms involved in these alterations are still unclear. Isoflavones are present in soy-based infant formula, in breast milk after the consumption of soy by the mother and are widely used for the preparation of beverages consumed by toddlers and teenagers. In this sense, we proposed to investigate the effects of soy isoflavone exposure during the prepubertal period, a recognized window of sensitivity for endocrine disruption, over the hypothalamic-pituitary-testicular (HPT) axis. For this, 42 3-week-old male Wistar rats were exposed to 0.5, 5 or 50 mg of soy isoflavones/kg from postnatal day (PND) 23 to PND60. We evaluated body growth, age at puberty, serum concentrations of LH, FSH, testosterone and estradiol, and the expression of the transcripts (mRNA) of genes encoding key genes controlling the hypothalamic-pituitary-testicular (HPT) axis. In the hypothalamus, we observed an increase in Esr1 mRNA expression (0.5 and 5 mg). In the pituitary, we observed an increase in Gnrhr mRNA expression (50 mg), a reduction in Lhb mRNA expression (0.5 mg), and a reduction in Ar mRNA expression. In the testis, we observed an increase in Lhcgr mRNA expression (50 mg) and a reduction in Star mRNA expression (0.5 and 5 mg). The serum levels of LH (5 and 50 mg) and FSH (0.5 mg) were increased, while testosterone and estradiol were reduced. Puberty was delayed in all groups. Taken together, these results suggest that prepubertal consumption of relevant levels of soy isoflavones disrupts the HPT axis, causing hypergonadotropic hypogonadism and altered expression levels of key genes regulating the axis.
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Affiliation(s)
- Jeane Maria Oliveira
- Laboratory of Reproductive Toxicology, Department of Medicine, State University of Centro-Oeste (UNICENTRO), Rua Simeão Camargo Varela de Sa, 03, Zip-Code 85040-080, Parana, Brazil.
| | - Isabela Medeiros Oliveira
- Laboratory of Reproductive Toxicology, Department of Medicine, State University of Centro-Oeste (UNICENTRO), Rua Simeão Camargo Varela de Sa, 03, Zip-Code 85040-080, Parana, Brazil.
| | - Hanan Khaled Sleiman
- Laboratory of Reproductive Toxicology, Department of Medicine, State University of Centro-Oeste (UNICENTRO), Rua Simeão Camargo Varela de Sa, 03, Zip-Code 85040-080, Parana, Brazil.
| | - Gonzalo Ogliari Dal Forno
- Laboratory of Reproductive Toxicology, Department of Medicine, State University of Centro-Oeste (UNICENTRO), Rua Simeão Camargo Varela de Sa, 03, Zip-Code 85040-080, Parana, Brazil.
| | - Marco Aurelio Romano
- Laboratory of Reproductive Toxicology, Department of Medicine, State University of Centro-Oeste (UNICENTRO), Rua Simeão Camargo Varela de Sa, 03, Zip-Code 85040-080, Parana, Brazil.
| | - Renata Marino Romano
- Laboratory of Reproductive Toxicology, Department of Medicine, State University of Centro-Oeste (UNICENTRO), Rua Simeão Camargo Varela de Sa, 03, Zip-Code 85040-080, Parana, Brazil.
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19
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Malek MA, Dasiman R, Khan NAMN, Mohamed-Akhlak S, Mahmud MH. The protective effects of Procyanidin C-1 on bisphenol a-induced testicular dysfunction in aged mice. FOOD SCIENCE AND HUMAN WELLNESS 2022. [DOI: 10.1016/j.fshw.2022.03.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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20
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Lagunas N, Fernández-García JM, Blanco N, Ballesta A, Carrillo B, Arevalo MA, Collado P, Pinos H, Grassi D. Organizational Effects of Estrogens and Androgens on Estrogen and Androgen Receptor Expression in Pituitary and Adrenal Glands in Adult Male and Female Rats. Front Neuroanat 2022; 16:902218. [PMID: 35815333 PMCID: PMC9261283 DOI: 10.3389/fnana.2022.902218] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Accepted: 05/11/2022] [Indexed: 01/15/2023] Open
Abstract
Sex steroid hormones, such as androgens and estrogens, are known to exert organizational action at perinatal periods and activational effects during adulthood on the brain and peripheral tissues. These organizational effects are essential for the establishment of biological axes responsible for regulating behaviors, such as reproduction, stress, and emotional responses. Estradiol (E2), testosterone, and their metabolites exert their biological action through genomic and non-genomic mechanisms, bounding to canonical receptors, such as estrogen receptor (ER)α, ERβ, and androgen receptor (AR) or membrane receptors, such as the G protein-coupled estrogen receptor (GPER), respectively. Expression of ERs and AR was found to be different between males and females both in the brain and peripheral tissues, suggesting a sex-dependent regulation of their expression and function. Therefore, studying the ERs and AR distribution and expression levels is key to understand the central and peripheral role of sex steroids in the establishment of sex-specific behaviors in males and females. We investigated the organizational effects of estrogens and androgens in the pituitary and adrenal glands of adult male and female rats. For this, selective blockade of AR with flutamide or 5α-reductase with finasteride or aromatase with letrozole during the first 5 days of life has been performed in male and female pups and then quantification of ERs and AR expression in both glands has been carried out in adulthood. Data show that inhibition of dihydrotestosterone (DHT) and E2 production during the first five postnatal days mainly decreases the ER expression in male to female values and AR expression in female to male levels in the pituitary gland and increases AR expression in female to male levels in the adrenal gland. In contrast, blocking the action of androgens differentially modulates the ERs in males and females and decreases AR in both males and females in both glands. Altogether, the results suggest that neonatal modifications of the androgen and estrogen pathways can potentially lead to permanent modifications of the neuroendocrine functions of the pituitary and adrenal glands in the adulthood of both sexes.
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Affiliation(s)
- Natalia Lagunas
- Department of Legal Medicine, Psychiatry and Pathology, School of Medicine, Complutense University of Madrid, Madrid, Spain
| | - José Manuel Fernández-García
- Department of Psychobiology, National University of Distance Education, Madrid, Spain
- Department of Psychology, Universidad Villanueva, Madrid, Spain
| | - Noemí Blanco
- Department of Psychobiology, National University of Distance Education, Madrid, Spain
| | - Antonio Ballesta
- Department of Psychobiology, National University of Distance Education, Madrid, Spain
- Department of Psychology, Faculty of Biomedical Science and Health, European University of Madrid, Madrid, Spain
| | - Beatriz Carrillo
- Department of Psychobiology, National University of Distance Education, Madrid, Spain
- University Institute of Research-UNED-Institute of Health Carlos III (IMIENS), Madrid, Spain
| | - Maria-Angeles Arevalo
- Neuroactive Steroids Lab, Cajal Institute, CSIC, Madrid, Spain
- Centro de Investigación Biomédica en Red de Fragilidad y Envejecimiento Saludable (CIBERFES), Instituto de Salud Carlos III, Madrid, Spain
| | - Paloma Collado
- Department of Psychobiology, National University of Distance Education, Madrid, Spain
- University Institute of Research-UNED-Institute of Health Carlos III (IMIENS), Madrid, Spain
| | - Helena Pinos
- Department of Psychobiology, National University of Distance Education, Madrid, Spain
- University Institute of Research-UNED-Institute of Health Carlos III (IMIENS), Madrid, Spain
| | - Daniela Grassi
- Department of Psychobiology, National University of Distance Education, Madrid, Spain
- Neuroactive Steroids Lab, Cajal Institute, CSIC, Madrid, Spain
- Centro de Investigación Biomédica en Red de Fragilidad y Envejecimiento Saludable (CIBERFES), Instituto de Salud Carlos III, Madrid, Spain
- Department of Anatomy, Histology and Neuroscience, Autonomous University of Madrid, Madrid, Spain
- *Correspondence: Daniela Grassi
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21
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Adamczewska D, Słowikowska-Hilczer J, Walczak-Jędrzejowska R. The Fate of Leydig Cells in Men with Spermatogenic Failure. Life (Basel) 2022; 12:570. [PMID: 35455061 PMCID: PMC9028943 DOI: 10.3390/life12040570] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Revised: 03/25/2022] [Accepted: 04/08/2022] [Indexed: 11/18/2022] Open
Abstract
The steroidogenic cells in the testicle, Leydig cells, located in the interstitial compartment, play a vital role in male reproductive tract development, maintenance of proper spermatogenesis, and overall male reproductive function. Therefore, their dysfunction can lead to all sorts of testicular pathologies. Spermatogenesis failure, manifested as azoospermia, is often associated with defective Leydig cell activity. Spermatogenic failure is the most severe form of male infertility, caused by disorders of the testicular parenchyma or testicular hormone imbalance. This review covers current progress in knowledge on Leydig cells origin, structure, and function, and focuses on recent advances in understanding how Leydig cells contribute to the impairment of spermatogenesis.
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Affiliation(s)
| | | | - Renata Walczak-Jędrzejowska
- Department of Andrology and Reproductive Endocrinology, Medical University of Lodz, 92-213 Lodz, Poland; (D.A.); (J.S.-H.)
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22
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Singh R, Nasci VL, Guthrie G, Ertuglu LA, Butt MK, Kirabo A, Gohar EY. Emerging Roles for G Protein-Coupled Estrogen Receptor 1 in Cardio-Renal Health: Implications for Aging. Biomolecules 2022; 12:biom12030412. [PMID: 35327604 PMCID: PMC8946600 DOI: 10.3390/biom12030412] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2022] [Revised: 02/25/2022] [Accepted: 03/01/2022] [Indexed: 02/05/2023] Open
Abstract
Cardiovascular (CV) and renal diseases are increasingly prevalent in the United States and globally. CV-related mortality is the leading cause of death in the United States, while renal-related mortality is the 8th. Despite advanced therapeutics, both diseases persist, warranting continued exploration of disease mechanisms to develop novel therapeutics and advance clinical outcomes for cardio-renal health. CV and renal diseases increase with age, and there are sex differences evident in both the prevalence and progression of CV and renal disease. These age and sex differences seen in cardio-renal health implicate sex hormones as potentially important regulators to be studied. One such regulator is G protein-coupled estrogen receptor 1 (GPER1). GPER1 has been implicated in estrogen signaling and is expressed in a variety of tissues including the heart, vasculature, and kidney. GPER1 has been shown to be protective against CV and renal diseases in different experimental animal models. GPER1 actions involve multiple signaling pathways: interaction with aldosterone and endothelin-1 signaling, stimulation of the release of nitric oxide, and reduction in oxidative stress, inflammation, and immune infiltration. This review will discuss the current literature regarding GPER1 and cardio-renal health, particularly in the context of aging. Improving our understanding of GPER1-evoked mechanisms may reveal novel therapeutics aimed at improving cardio-renal health and clinical outcomes in the elderly.
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Affiliation(s)
- Ravneet Singh
- Division of Nephrology and Hypertension, Vanderbilt University Medical Center, Medical Research Building IV, Nashville, TN 37232, USA; (R.S.); (V.L.N.)
| | - Victoria L. Nasci
- Division of Nephrology and Hypertension, Vanderbilt University Medical Center, Medical Research Building IV, Nashville, TN 37232, USA; (R.S.); (V.L.N.)
| | - Ginger Guthrie
- Division of Nephrology, Department of Medicine, University of Alabama at Birmingham, Birmingham, AL 35233, USA; (G.G.); (M.K.B.)
| | - Lale A. Ertuglu
- Division of Clinical Pharmacology, Vanderbilt University Medical Center, Nashville, TN 37232, USA; (L.A.E.); (A.K.)
| | - Maryam K. Butt
- Division of Nephrology, Department of Medicine, University of Alabama at Birmingham, Birmingham, AL 35233, USA; (G.G.); (M.K.B.)
| | - Annet Kirabo
- Division of Clinical Pharmacology, Vanderbilt University Medical Center, Nashville, TN 37232, USA; (L.A.E.); (A.K.)
| | - Eman Y. Gohar
- Division of Nephrology and Hypertension, Vanderbilt University Medical Center, Medical Research Building IV, Nashville, TN 37232, USA; (R.S.); (V.L.N.)
- Correspondence:
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23
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Endocrinopathies and Male Infertility. LIFE (BASEL, SWITZERLAND) 2021; 12:life12010010. [PMID: 35054403 PMCID: PMC8779600 DOI: 10.3390/life12010010] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Revised: 12/09/2021] [Accepted: 12/16/2021] [Indexed: 01/22/2023]
Abstract
Male infertility is approaching a concerning prevalence worldwide, and inflicts various impacts on the affected couple. The hormonal assessment is a vital component of male fertility evaluation as endocrine disorders are markedly reversible causatives of male infertility. Precise hormonal regulations are prerequisites to maintain normal male fertility parameters. The core male reproductive event, spermatogenesis, entails adequate testosterone concentration, which is produced via steroidogenesis in the Leydig cells. Physiological levels of both the gonadotropins are needed to achieve normal testicular functions. The hypothalamus-derived gonadotropin-releasing hormone (GnRH) is considered the supreme inducer of the gonadotropins and thereby the subsequent endocrine reproductive events. This hypothalamic–pituitary–gonadal (HPG) axis may be modulated by the thyroidal or adrenal axis and numerous other reproductive and nonreproductive hormones. Disruption of this fine hormonal balance and their crosstalk leads to a spectrum of endocrinopathies, inducing subfertility or infertility in men. This review article will discuss the most essential endocrinopathies associated with male factor infertility to aid precise understanding of the endocrine disruptions-mediated male infertility to encourage further research to reveal the detailed etiology of male infertility and perhaps to develop more customized therapies for endocrinopathy-induced male infertility.
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24
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Guo L, Qin TZ, Liu LY, Lai PP, Xue YZ, Jing YT, Zhang W, Li W, Li J, Ding GR. The Abscopal Effects of Cranial Irradiation Induce Testicular Damage in Mice. Front Physiol 2021; 12:717571. [PMID: 34867437 PMCID: PMC8637864 DOI: 10.3389/fphys.2021.717571] [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: 05/31/2021] [Accepted: 09/07/2021] [Indexed: 11/14/2022] Open
Abstract
To investigate whether the abscopal effects of cranial irradiation (C-irradiation) cause testicular damage in mice, male C57BL/6 mice (9weeks of age) were randomly divided into a sham irradiation group, a shielded group and a C-irradiation group and administered sham/shielded irradiation or C-irradiation at a dose rate of 2.33Gy/min (5Gy/d for 4 d consecutively). All mice were sacrificed at 4weeks after C-irradiation. We calculated the testis index, observed testicular histology by haematoxylin-eosin (HE) staining and observed testicular ultrastructure by transmission electron microscopy. Western blotting was used to determine the protein levels of Bax, Bcl-2, Cleaved caspase 3, glial cell line-derived neurotrophic factor (GDNF) and stem cell factor (SCF) in the testes of mice. Immunofluorescence staining was performed to detect the expression of Cleaved caspase 3 and 3β hydroxysteroid dehydrogenase (3βHSD), and a TUNEL assay was used to confirm the location of apoptotic cells. The levels of testosterone (T), GDNF and SCF were measured by ELISA. We also evaluated the sperm quality in the cauda epididymides by measuring the sperm count, abnormality, survival rate and apoptosis rate. The results showed that there was no significant difference in testicular histology, ultrastructure or sperm quality between the shielded group and sham group. Compared with the sham/shielded group, the C-irradiation group exhibited a lower testis index and severely damaged testicular histology and ultrastructure at 4weeks after C-irradiation. The levels of apoptosis in the testes increased markedly in the C-irradiation group, especially in spermatogonial stem cells. The levels of serum T and testicular 3βHSD did not obviously differ between the sham group and the C-irradiation group, but the levels of GDNF and SCF in the testes increased in the C-irradiation group, compared with the sham group. In addition, the sperm count and survival rate decreased in the C-irradiation group, while the abnormality and apoptosis rate increased. Under these experimental conditions, the abscopal effects of C-irradiation induced testicular damage with regard to both structure and function and ultimately decreased sperm quality in mice. These findings provide novel insights into prevention and treatment targets for male reproductive damage induced by C-irradiation.
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Affiliation(s)
- Ling Guo
- Department of Radiation Protection Medicine, School of Military Preventive Medicine, Fourth Military Medical University, Xi'an, China.,Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, Xi'an, China
| | - Tong-Zhou Qin
- Department of Radiation Protection Medicine, School of Military Preventive Medicine, Fourth Military Medical University, Xi'an, China.,Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, Xi'an, China
| | - Li-Yuan Liu
- Department of Radiation Protection Medicine, School of Military Preventive Medicine, Fourth Military Medical University, Xi'an, China.,Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, Xi'an, China
| | - Pan-Pan Lai
- Department of Radiation Protection Medicine, School of Military Preventive Medicine, Fourth Military Medical University, Xi'an, China.,Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, Xi'an, China
| | - Yi-Zhe Xue
- Department of Radiation Protection Medicine, School of Military Preventive Medicine, Fourth Military Medical University, Xi'an, China.,Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, Xi'an, China
| | - Yun-Tao Jing
- Department of Radiation Protection Medicine, School of Military Preventive Medicine, Fourth Military Medical University, Xi'an, China.,Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, Xi'an, China
| | - Wei Zhang
- Department of Radiation Protection Medicine, School of Military Preventive Medicine, Fourth Military Medical University, Xi'an, China.,Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, Xi'an, China
| | - Wei Li
- Department of Histology and Embryology, School of Basic Medical Science, Fourth Military Medical University, Xi'an, China
| | - Jing Li
- Department of Radiation Protection Medicine, School of Military Preventive Medicine, Fourth Military Medical University, Xi'an, China.,Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, Xi'an, China
| | - Gui-Rong Ding
- Department of Radiation Protection Medicine, School of Military Preventive Medicine, Fourth Military Medical University, Xi'an, China.,Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, Xi'an, China
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25
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Shamhari A‘A, Abd Hamid Z, Budin SB, Shamsudin NJ, Taib IS. Bisphenol A and Its Analogues Deteriorate the Hormones Physiological Function of the Male Reproductive System: A Mini-Review. Biomedicines 2021; 9:1744. [PMID: 34829973 PMCID: PMC8615890 DOI: 10.3390/biomedicines9111744] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Revised: 11/19/2021] [Accepted: 11/20/2021] [Indexed: 02/06/2023] Open
Abstract
BPA is identified as an endocrine-disrupting chemical that deteriorates the physiological function of the hormones of the male reproductive system. Bisphenol F (BPF), bisphenol S (BPS), and bisphenol AF (BPAF) are actively explored as substitutes for BPA and are known as BPA analogues in most manufacturing industries. These analogues may demonstrate the same adverse effects as BPA on the male reproductive system; however, toxicological data explaining the male reproductive hormones' physiological functions are still limited. Hence, this mini-review discusses the effects of BPA and its analogues on the physiological functions of hormones in the male reproductive system, focusing on the hypothalamus-pituitary-gonad (HPG) axis, steroidogenesis, and spermatogenesis outcomes. The BPA analogues mainly show a similar negative effect on the hormones' physiological functions, proven by alterations in the HPG axis and steroidogenesis via activation of the aromatase activity and reduction of spermatogenesis outcomes when compared to BPA in in vitro and in vivo studies. Human biomonitoring studies also provide significant adverse effects on the physiological functions of hormones in the male reproductive system. In conclusion, BPA and its analogues deteriorate the physiological functions of hormones in the male reproductive system as per in vitro, in vivo, and human biomonitoring studies.
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Affiliation(s)
- Asma’ ‘Afifah Shamhari
- Centre for Diagnostic, Therapeutic and Investigative Studies, Faculty of Health Sciences, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, Kuala Lumpur 50300, Malaysia; (A.‘A.S.); (Z.A.H.); (S.B.B.)
| | - Zariyantey Abd Hamid
- Centre for Diagnostic, Therapeutic and Investigative Studies, Faculty of Health Sciences, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, Kuala Lumpur 50300, Malaysia; (A.‘A.S.); (Z.A.H.); (S.B.B.)
| | - Siti Balkis Budin
- Centre for Diagnostic, Therapeutic and Investigative Studies, Faculty of Health Sciences, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, Kuala Lumpur 50300, Malaysia; (A.‘A.S.); (Z.A.H.); (S.B.B.)
| | - Nurul Jehan Shamsudin
- Centre for Toxicology and Health Risk Research, Faculty of Health Sciences, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, Kuala Lumpur 50300, Malaysia;
| | - Izatus Shima Taib
- Centre for Diagnostic, Therapeutic and Investigative Studies, Faculty of Health Sciences, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, Kuala Lumpur 50300, Malaysia; (A.‘A.S.); (Z.A.H.); (S.B.B.)
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26
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Sengupta P, Dutta S, Karkada IR, Akhigbe RE, Chinni SV. Irisin, Energy Homeostasis and Male Reproduction. Front Physiol 2021; 12:746049. [PMID: 34621189 PMCID: PMC8490744 DOI: 10.3389/fphys.2021.746049] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Accepted: 08/31/2021] [Indexed: 11/17/2022] Open
Abstract
Irisin is a novel skeletal muscle- and adipose tissue-secreted peptide. It is conventionally regarded as an adipomyokine and is a cleaved fragment of Fibronectin type III domain-containing protein 5 (FNDC5). It is involved in the browning of white adipose tissue, glucose tolerance, and reversing of metabolic disruptions. Fertility is closely linked to energy metabolism and the endocrine function of the adipose tissue. Moreover, there is established association between obesity and male infertility. Irisin bears strong therapeutic promise in obesity and its associated disorders, as well as shown to improve male reproductive functions. Thus, irisin is a molecule of great interest in exploring the amelioration of metabolic syndrome or obesity-induced male infertility. In this review we aim to enumerate the most significant aspects of irisin actions and discuss its involvement in energy homeostasis and male reproduction. Though current and future research on irisin is very promiscuous, a number of clarifications are still needed to reveal its full potential as a significant medicinal target in several human diseases including male infertility.
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Affiliation(s)
- Pallav Sengupta
- Physiology Unit, Faculty of Medicine, Bioscience and Nursing, MAHSA University, Kuala Lumpur, Malaysia
| | - Sulagna Dutta
- Department of Oral Biology and Biomedical Sciences, Faculty of Dentistry, MAHSA University, Kuala Lumpur, Malaysia
| | - Ivan Rolland Karkada
- Physiology Unit, Faculty of Medicine, Bioscience and Nursing, MAHSA University, Kuala Lumpur, Malaysia
| | - Roland Eghoghosoa Akhigbe
- Department of Physiology, Ladoke Akintola University of Technology, Ogbomoso, Nigeria.,Reproductive Biology and Toxicology Research Laboratories, Oasis of Grace Hospital, Osogbo, Nigeria
| | - Suresh V Chinni
- Department of Biotechnology, Faculty of Applied Sciences, AIMST University, Bedong, Malaysia
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Peroxisome Proliferator-Activated Receptor γ, but Not α or G-Protein Coupled Estrogen Receptor Drives Functioning of Postnatal Boar Testis-Next Generation Sequencing Analysis. Animals (Basel) 2021; 11:ani11102868. [PMID: 34679887 PMCID: PMC8532933 DOI: 10.3390/ani11102868] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Revised: 09/19/2021] [Accepted: 09/27/2021] [Indexed: 12/12/2022] Open
Abstract
Simple Summary As of now, the Next Generation Sequencing (NGS) analysis has not been utilized to identify biological processes and signaling pathways that are regulated in the boar postnatal testes. Our prior studies revealed that the peroxisome proliferator-activated receptor (PPAR) and G-protein coupled estrogen receptor (GPER) were significant for the morpho-functional status of testicular cells. Here, the pharmacological blockage of PPARα, PPARγ or GPER was performed in ex vivo immature boar testes. The NGS results showed 382 transcripts with an altered expression. The blockage by the PPARγ antagonist markedly affected biological processes such as: drug metabolism (genes: Ctsh, Duox2, Atp1b1, Acss2, Pkd2, Aldh2, Hbb, Sdhd, Cox3, Nd4, Nd5, Cytb, Cbr1, and Pid1), adhesion (genes: Plpp3, Anxa1, Atp1b1, S100a8, Cd93, Ephb4, Vsir, Cldn11, Gpc4, Fermt3, Dusp26, Sox9, and Cdh5) and tube development (genes: Ctsh, Mmp14, Dll4, Anxa1, Ephb4, Pkd2, Angptl4, Robo4, Sox9, Hikeshi, Ing2, Loc100738836, and Rarres2), as well as the Notch signaling pathway. This was not the case for the PPARα or GPER antagonists. Our observations suggested that PPARγ may be the principal player in the management of the development and function of boar testes during the early postnatal window. Moreover, due to a highly similar porcine gene expression pattern to human homologues genes, our results can be used to understand both animal and human testes physiology and to predict or treat pathological processes. Abstract Porcine tissue gene expression is highly similar to the expression of homologous genes in humans. Based on this fact, the studies on porcine tissues can be employed to understand human physiology and to predict or treat diseases. Our prior studies clearly showed that there was a regulatory partnership of the peroxisome proliferator-activated receptor (PPAR) and the G-protein coupled membrane estrogen receptor (GPER) that relied upon the tumorigenesis of human and mouse testicular interstitial cells, as well as the PPAR-estrogen related receptor and GPER–xenoestrogen relationships which affected the functional status of immature boar testes. The main objective of this study was to identify the biological processes and signaling pathways governed by PPARα, PPARγ and GPER in the immature testes of seven-day-old boars after pharmacological receptor ligand treatment. Boar testicular tissues were cultured in an organotypic system with the respective PPARα, PPARγ or GPER antagonists. To evaluate the effect of the individual receptor deprivation in testicular tissue on global gene expression, Next Generation Sequencing was performed. Bioinformatic analysis revealed 382 transcripts with altered expression. While tissues treated with PPARα or GPER antagonists showed little significance in the enrichment analysis, the antagonists challenged with the PPARγ antagonist displayed significant alterations in biological processes such as: drug metabolism, adhesion and tubule development. Diverse disruption in the Notch signaling pathway was also observed. The findings of our study proposed that neither PPARα nor GPER, but PPARγ alone seemed to be the main player in the regulation of boar testes functioning during early the postnatal developmental window.
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Kuyucu Y, Coşkun G, Şaker D, Karaoğlan Ö, Ürünsak İF, İzol V, Arıdoğan İA, Erdoğan Ş, Özgür H, Polat S. Immunohistochemical examination of androgen receptor and estrogen receptor alpha expressions in obstructive and non-obstructive azoospermia. Syst Biol Reprod Med 2021; 67:463-470. [PMID: 34420467 DOI: 10.1080/19396368.2021.1958094] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
In this study, the expression of the androgen receptor (AR) and estrogen receptor alpha (ERα) in testicular tissue of male patients with obstructive azoospermia (OA) and non-obstructive azoospermia (NOA) were evaluated by immunohistochemistry. NOA (n = 23) and OA (n = 21) groups were created according to clinical and laboratory archival records. Testicular sperm extraction tissue sections were evaluated according to Johnsen's tubular biopsy scoring (JTBS) method. ERα and AR immunostaining results were evaluated semiquantitatively. Serum follicle-stimulating hormone (FSH), luteinizing hormone (LH), testosterone, and estradiol were analyzed. Serum FSH and LH concentrations were greater, and testosterone concentrations were lower than the normal values in the NOA group, whereas the OA group revealed normal hormonal values. Serum estradiol concentrations in groups were in the normal range. JTBSs were significantly lower in the NOA group. Decreased AR expression and increased ERα expression were observed in the NOA group compared to the OA group. This suggests that ERα and AR are expressed in Sertoli cells, Leydig cells, and myoid cells and are required for normal testicular function. Decreased expression of the AR and increased expression of ERα in the testis may negatively affect spermatogenesis.Abbreviations: AR: androgen receptor; ER: estrogen receptor; ERα: estrogen receptor alpha; FSH: follicle-stimulating hormone; JTBS: Johnsen's tubular biopsy scoring; LH: luteinizing hormone; NOA: non-obstructive azoospermia; OA: obstructive azoospermia; TESE: testicular sperm extraction.
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Affiliation(s)
- Yurdun Kuyucu
- Faculty of Medicine, Department of Histology and Embryology, Çukurova University, Adana, Turkey
| | - Gülfidan Coşkun
- Faculty of Medicine, Department of Histology and Embryology, Çukurova University, Adana, Turkey
| | - Dilek Şaker
- Faculty of Medicine, Department of Histology and Embryology, Çukurova University, Adana, Turkey
| | - Özdem Karaoğlan
- Faculty of Medicine, Department of Obstetrics and Gynecology, Çukurova University, Adana, Turkey
| | - İbrahim Ferhat Ürünsak
- Faculty of Medicine, Department of Obstetrics and Gynecology, Çukurova University, Adana, Turkey
| | - Volkan İzol
- Faculty of Medicine, Department of Urology, Çukurova University, Adana, Turkey
| | | | - Şeyda Erdoğan
- Faculty of Medicine, Department of Pathology, Çukurova University, Adana, Turkey
| | - Hülya Özgür
- Faculty of Medicine, Department of Histology and Embryology, Çukurova University, Adana, Turkey
| | - Sait Polat
- Faculty of Medicine, Department of Histology and Embryology, Çukurova University, Adana, Turkey
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Dietary supplementation of pumpkin seed oil and sunflower oil along with vitamin E improves sperm characteristics and reproductive hormones in roosters. Poult Sci 2021; 100:101289. [PMID: 34298380 PMCID: PMC8322462 DOI: 10.1016/j.psj.2021.101289] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Revised: 05/03/2021] [Accepted: 05/21/2021] [Indexed: 11/30/2022] Open
Abstract
This study evaluates the effects of pumpkin seed oil and sunflower oil along with vitamin E on the reproductive characteristics of aged roosters. Thirty Ross breeder roosters (45-wk-old) were assigned into 6 groups (5 birds/group) with the following diets: 1) control group (basal diet), 2) basal diet with 2% pumpkin seed oil as omega-3 fatty acid (PSO group), 3) basal diet with 2% sunflower oil as omega-6 fatty acid (SFO group), 4) basal diet with 200 mg/kg vitamin E (Control + vitE group), 5) basal diet and 2% pumpkin seed oil along with 200 mg/kg vitamin E (PSO + vitE group) and 6) basal diet and 2% sunflower oil along with 200 mg/kg vitamin E (SFO + vitE group). Roosters were fed on the experimental diets for 60 d and different characteristics of sperm characteristics including routine semen analysis and several sperm functional tests in every 20 d were examined. Reproductive hormones were also evaluated in 0 d and at the end of the trial. Semen volume and morphology were not affected by any of the diets. The roosters fed with pumpkin seed oil + vitE showed the higher percentage of sperm concentration, total motility, progressive motility, viability and membrane integrity and the lower lipid peroxidation (P ≤ 0.05). The group 5 (PSO + vitE) had numerically the lowest sperm with fragmented DNA (DNA Fr+) at 0 of the experiment and sperm with non-fragmented DNA (DNA Fr−) was lowest in group 6 (SFO + vitE) on da 40 the experiment. Testosterone level was not affected by the experimental diets (P > 0.05), however other hormones (LH and FSH) were affected. Based on the results, the supplementation of aged roosters’ diet with pumpkin seed oil + vitE improves reproductive performance which can be an appropriate strategy to preserve the reproductive performance of aged roosters.
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30
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Qu J, Han Y, Zhao Z, Wu Y, Lu Y, Chen G, Jiang J, Qiu L, Gu A, Wang X. Perfluorooctane sulfonate interferes with non-genomic estrogen receptor signaling pathway, inhibits ERK1/2 activation and induces apoptosis in mouse spermatocyte-derived cells. Toxicology 2021; 460:152871. [PMID: 34303733 DOI: 10.1016/j.tox.2021.152871] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Revised: 07/17/2021] [Accepted: 07/20/2021] [Indexed: 12/29/2022]
Abstract
Perfluorooctane sulfonate (PFOS) is a widespread persistent organic pollutant. Both epidemiological survey and our previous in vivo study have revealed the associations between PFOS exposure and spermatogenesis disorder, while the underlying mechanisms are far from clear. In the present study, GC-2 cells, a mouse spermatocyte-derived cell line, was used to investigate the toxic effects of PFOS and its hypothetical mechanism of action. GC-2 cells were treated with PFOS (0, 50, 100 and 150 μM) for 24 h or 48 h. Results demonstrated that PFOS dose-dependently inhibited cell viability, induced G0/G1 cell cycle arrest and triggered apoptosis, which might be partly explained by the decrease in cyclin D1, PCNA and Bcl-2 protein expression; increase in Bax protein expression; and activation of caspase-9, -3. In addition, PFOS did not directly transactivate or repress estrogen receptors (ERs) in gene reporter assays, whereas the protein levels of both ERα and ERβ were significantly altered and the downstream ERK1/2 phosphorylation was inhibited by PFOS. Furthermore, pretreatment with specific ERα agonist PPT (1 μM) significantly attenuated the above PFOS-induced effects while specific ERβ agonist DPN (1 μM) accelerated them. These results suggest that PFOS may induce growth inhibition and apoptosis via non-genomic estrogen receptor/ERK1/2 signaling pathway in GC-2 cells, which provides a novel insight regarding the potential role of ERs in mediating PFOS-triggered spermatocyte toxicity.
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Affiliation(s)
- Jianhua Qu
- School of Public Health, Nantong University, 9 Seyuan Road, Nantong, 226019, China.
| | - Yu Han
- School of Public Health, Nantong University, 9 Seyuan Road, Nantong, 226019, China
| | - Ziyan Zhao
- School of Public Health, Nantong University, 9 Seyuan Road, Nantong, 226019, China
| | - Yuan Wu
- Department of Medical Oncology, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, The Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, 210009, China
| | - Ying Lu
- School of Public Health, Nantong University, 9 Seyuan Road, Nantong, 226019, China
| | - Gang Chen
- School of Public Health, Nantong University, 9 Seyuan Road, Nantong, 226019, China
| | - Junkang Jiang
- School of Public Health, Nantong University, 9 Seyuan Road, Nantong, 226019, China
| | - Lianglin Qiu
- School of Public Health, Nantong University, 9 Seyuan Road, Nantong, 226019, China
| | - Aihua Gu
- Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, 211166, China
| | - Xinru Wang
- Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, 211166, China
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Pillerová M, Borbélyová V, Hodosy J, Riljak V, Renczés E, Frick KM, Tóthová Ľ. On the role of sex steroids in biological functions by classical and non-classical pathways. An update. Front Neuroendocrinol 2021; 62:100926. [PMID: 34089761 PMCID: PMC8523217 DOI: 10.1016/j.yfrne.2021.100926] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 05/29/2021] [Accepted: 05/31/2021] [Indexed: 12/02/2022]
Abstract
The sex steroid hormones (SSHs) play several roles in regulation of various processes in the cardiovascular, immune, muscular and neural systems. SSHs affect prenatal and postnatal development of various brain structures, including regions associated with important physiological, behavioral, cognitive, and emotional functions. This action can be mediated by either intracellular or transmembrane receptors. While the classical mechanisms of SSHs action are relatively well examined, the physiological importance of non-classical mechanism of SSHs action through membrane-associated and transmembrane receptors in the brain remains unclear. The most recent summary describing the role of SSHs in different body systems is lacking. Therefore, the aim of this review is to discuss classical and non-classical signaling pathways of testosterone and estradiol action via their receptors at functional, cellular, tissue level and to describe the effects on various body systems and behavior. Particular emphasis will be on brain regions including the hippocampus, hypothalamus, frontal cortex and cerebellum.
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Affiliation(s)
- Miriam Pillerová
- Institute of Molecular Biomedicine, Faculty of Medicine, Comenius University in Bratislava, Bratislava, Slovakia
| | - Veronika Borbélyová
- Institute of Molecular Biomedicine, Faculty of Medicine, Comenius University in Bratislava, Bratislava, Slovakia
| | - Július Hodosy
- Institute of Molecular Biomedicine, Faculty of Medicine, Comenius University in Bratislava, Bratislava, Slovakia
| | - Vladimír Riljak
- Institute of Physiology, First Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Emese Renczés
- Institute of Molecular Biomedicine, Faculty of Medicine, Comenius University in Bratislava, Bratislava, Slovakia
| | - Karyn M Frick
- Department of Psychology, University of Wisconsin-Milwaukee, Milwaukee, WI, USA
| | - Ľubomíra Tóthová
- Institute of Molecular Biomedicine, Faculty of Medicine, Comenius University in Bratislava, Bratislava, Slovakia.
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Migliaccio MG, Di Mauro M, Ricciolino R, Spiniello G, Carfora V, Verde N, Mottola FF, Coppola N. Renal Involvement in COVID-19: A Review of the Literature. Infect Drug Resist 2021; 14:895-903. [PMID: 33707958 PMCID: PMC7943324 DOI: 10.2147/idr.s288869] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Accepted: 12/17/2020] [Indexed: 01/08/2023] Open
Abstract
Kidney injury may be a severe complication of acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and contributes to worsen the prognosis. Various pathophysiological mechanisms can contribute to organ damage and impair renal function, proving the complexity of the virus activity and the resulting immunity response. We summarized the evidence of the literature on the prevalence of kidney involvement, on the pathogenic pathways and on its management.
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Affiliation(s)
- Marco Giuseppe Migliaccio
- Department of Translational Medical Sciences, University of Campania “Luigi Vanvitelli”, Naples, Italy
| | - Marco Di Mauro
- Department of Translational Medical Sciences, University of Campania “Luigi Vanvitelli”, Naples, Italy
| | - Riccardo Ricciolino
- Department of Translational Medical Sciences, University of Campania “Luigi Vanvitelli”, Naples, Italy
| | - Giorgio Spiniello
- Department of Translational Medical Sciences, University of Campania “Luigi Vanvitelli”, Naples, Italy
| | - Vincenzo Carfora
- Department of Translational Medical Sciences, University of Campania “Luigi Vanvitelli”, Naples, Italy
| | - Nicoletta Verde
- Department of Translational Medical Sciences, University of Campania “Luigi Vanvitelli”, Naples, Italy
| | - Filiberto Fausto Mottola
- Department of Translational Medical Sciences, University of Campania “Luigi Vanvitelli”, Naples, Italy
| | - Nicola Coppola
- Department of Mental Health and Public Medicine, Infectious Diseases Unit, University of Campania “Luigi Vanvitelli”, Naples, Italy
| | - On behalf of the Vanvitelli COVID-19 Group
- Department of Translational Medical Sciences, University of Campania “Luigi Vanvitelli”, Naples, Italy
- Department of Mental Health and Public Medicine, Infectious Diseases Unit, University of Campania “Luigi Vanvitelli”, Naples, Italy
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Adeyemi TE, Channa ML, Nadar A. Evaluation of maternal high-fat diet and Quercetin-3-O-rutinoside treatment on the reproductive profile of diet naïve male offspring. Life Sci 2021; 271:119179. [PMID: 33577849 DOI: 10.1016/j.lfs.2021.119179] [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: 11/04/2020] [Revised: 01/31/2021] [Accepted: 02/05/2021] [Indexed: 10/22/2022]
Abstract
BACKGROUND Male infertility and reproductive dysfunctions have become major global health problems. Although several causative factors have been attributed to this challenge, of importance are alterations in maternal-foetal environment, diet-induced transcriptional changes and dysregulation in chemical signaling via hypothalamic-gonadal axis. AIM The present study investigated the impact of maternal high-fat diet (HFD) consumption and the putative role of Quercetin-3-O-rutinoside on reproductive functions of male offspring rats at critical developmental stages with a quest to unravel the underpinned molecular changes. MATERIALS AND METHODS Fifty-six pregnant rats (previously fed normal diet ND) or 45% HFD) were maintained on supplemented chow (150 mg/kg QR) - ND/QR, HFD/QR throughout gestation. Subsequently, dams (n = 7) and offspring (n = 6) were sacrificed at post-natal day (PND) 21, 28 and 35, respectively, and the blood, placenta, hypothalamus (HT), and testicular samples were processed for molecular analysis of Gonadotropin-releasing hormone (GnRH), Luteinizing hormone (LH), testosterone, chemerin, chemokine-like receptor 1 (CMKLR1), tumour necrosis factor α (TNF-α), interleukin 1β (IL-1β) and nuclear factor kappa B (NF-κB). KEY FINDINGS We observed a significant decrease in GnRH level in the HFD group at PND21 and PND28 in male offspring and treatment with QR significantly reduced GnRH. There was a significant reduction in LH levels in the HFD group at PND 21 in the male offspring accompanied by a significant decrease in testosterone level at PND 28 and PND35 which appears to be age dependent. In the HT, Chemerin and CMKLR1 was significantly upregulated in the HFD group at PND 21 and PND 35 respectively while CMKLR1 was significantly downregulated in the HFD group of the placenta and testis at PND 21. TNF-α, IL-1β and NF-κB were also expressed in the placenta, HT and testis at PND 21. SIGNIFICANCE Male fertility is affected by maternal HFD consumption while chemerin, CMKLR1 and TNF-α, may play a significant role in male steroidogenesis. Treatment with QR had little or no ameliorative effect on HFD induced alterations in male reproductive functions.
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Affiliation(s)
- Toluwalope E Adeyemi
- Discipline of Human Physiology, School of Laboratory Medicine and Medical Sciences, College of Health Sciences, University of KwaZulu-Natal, Private Bag X54001, Durban 4000, South Africa.
| | - Mahendra L Channa
- Discipline of Human Physiology, School of Laboratory Medicine and Medical Sciences, College of Health Sciences, University of KwaZulu-Natal, Private Bag X54001, Durban 4000, South Africa.
| | - Anand Nadar
- Discipline of Human Physiology, School of Laboratory Medicine and Medical Sciences, College of Health Sciences, University of KwaZulu-Natal, Private Bag X54001, Durban 4000, South Africa.
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34
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Lu BB, Liang W, Liang C, Yu ZQ, Xie XZ, Chen Z. Effect of Heat Stress on Expression of Main Reproductive Hormone in Hypothalamic-Pituitary-Gonadal Axis of Wenchang Chicks. BRAZILIAN JOURNAL OF POULTRY SCIENCE 2021. [DOI: 10.1590/1806-9061-2019-1056] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- BB Lu
- Hainan Normal University, China
| | - W Liang
- Hainan Normal University, China
| | - C Liang
- Hainan Normal University, China
| | - ZQ Yu
- Hainan Normal University, China
| | - XZ Xie
- Hainan Normal University, China
| | - Z Chen
- Hainan Normal University, China
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35
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Ajayi AF, Akhigbe RE. In vivo exposure to codeine induces reproductive toxicity: role of HER2 and p53/Bcl-2 signaling pathway. Heliyon 2020; 6:e05589. [PMID: 33294712 PMCID: PMC7695972 DOI: 10.1016/j.heliyon.2020.e05589] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2020] [Revised: 10/17/2020] [Accepted: 11/19/2020] [Indexed: 02/08/2023] Open
Abstract
Several studies have implicated codeine use in the aetiopathogenesis of male infertility. The purpose of this study was to investigate the role of HER2, Ki67, oestrogen and p53/Bcl-2 signaling pathways and the possible outcome of codeine cessation on codeine-induced reproductive toxicity. Thirty adult male Wistar rats of comparable ages and weights were randomly allocated into 5 groups. The control animals received distilled water per os (p.o), while animals in the low-dose (LDC) and high dose (HDC) codeine-treated groups received 2 and 5 mg/kg/day of codeine respectively p.o for 6 weeks. The animals in the low-dose codeine recovery (LDC-R) and high-dose codeine recovery (HDC-R) groups received treatment as LDC and HDC respectively followed by another drug-free six weeks, recovery period. Cessation of codeine exposure led to a partial reversal of codeine-induced poor sperm quality, reduced litter size and weight, increased oxidative testicular injury, testicular apoptosis, and testicular DNA damage caused by codeine administration. Codeine-induced gonado-spermotoxicity was associated with a reduction of circulatory testosterone, suppression of testicular HER2, Ki67, and Bcl-2 expression, down-regulation of oestrogen signaling, and upregulation of testicular caspase 3 activities and p53 signaling pathway. Conclusion: Upregulation of oestrogen signaling associated with enhanced testicular HER2 and Ki67 expression during the recovery period is seemingly beneficial in protecting against codeine-related testicular injury and infertility.
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Affiliation(s)
- A F Ajayi
- Department of Physiology, College of Medicine, Ladoke Akintola University of Technology, Ogbomoso, Oyo, Nigeria
| | - R E Akhigbe
- Department of Physiology, College of Medicine, Ladoke Akintola University of Technology, Ogbomoso, Oyo, Nigeria.,Reproductive Biology and Toxicology Research Laboratories, Oasis of Grace Hospital, Osogbo, Osun, Nigeria.,Department of Chemical Sciences, Kings University, Odeomu, Osun, Nigeria
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36
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Sawal N, Kaur J, Kaur K, Gombar S. Dihydrotestosterone in Amyotrophic lateral sclerosis-The missing link? Brain Behav 2020; 10:e01645. [PMID: 33047895 PMCID: PMC7667368 DOI: 10.1002/brb3.1645] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Revised: 03/31/2020] [Accepted: 04/01/2020] [Indexed: 12/25/2022] Open
Abstract
OBJECTIVE Testosterone has been postulated to be involved in ALS causation. MATERIALS AND METHODS CSF levels of free testosterone and dihydrotestosterone were measured in 13 ALS patients [7 males, 6 females] and 22 controls [12 males, 10 females]. RESULTS CSF free testosterone levels did not show any significant differences but CSF dihydrotestosterone levels were significantly decreased in all male and female ALS patients. CONCLUSIONS DHT is probably integral to survival of motor neurons. In patients predisposed to develop ALS, there is possibly a sort of "testosterone resistance" at level of blood-brain barrier [BBB] existing right from birth and is likely the result of dysfunctional transport protein involved in testosterone transfer across the BBB. In these patients, lesser amount of testosterone is able to breach the BBB and enter the central neural axis. Lesser amount of testosterone is available to 5 α reductase in the anterior pituitary to be converted to DHT and lesser amount of DHT is generated. There is inadequate negative feedback suppression of LH at the level of anterior pituitary by DHT. As a result of higher LH levels, testosterone levels rise in the peripheral testosterone fraction [the fraction outside the BBB] and this explains the various physical attributes of ALS patients like lower Ratio of the index and ring finger lengths (2D:4D ratio), increased incidence of early onset alopecia etc. This deficiency of DHT leads to motor neuron death causing ALS.
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Affiliation(s)
- Nishit Sawal
- Neurology Division, Department of Medicine, Government Medical college and Hospital, Chandigarh, India
| | - Jasbinder Kaur
- Department of Biochemistry, Government Medical college and Hospital, Chandigarh, India
| | - Kamaljeet Kaur
- Department of Biochemistry, Government Medical college and Hospital, Chandigarh, India
| | - Satinder Gombar
- Department of Anaesthesia and Intensive care, Government Medical college and Hospital, Chandigarh, India
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37
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Meng Q, Yeung K, Kwok ML, Chung CT, Hu XL, Chan KM. Toxic effects and transcriptome analyses of zebrafish (Danio rerio) larvae exposed to benzophenones. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 265:114857. [PMID: 32497821 DOI: 10.1016/j.envpol.2020.114857] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2020] [Revised: 05/18/2020] [Accepted: 05/21/2020] [Indexed: 06/11/2023]
Abstract
Sunscreen chemicals, such as benzophenones (BPs), are common environmental contaminants that are posing a growing health concern due to their increasing presence in water, fish, and human systems. Benzoresorcinol (BP1), oxybenzone (BP3), and dioxybenzone (BP8) are the most commonly used BPs for their ability to protect from sunburn by absorbing a broad spectrum of ultraviolet radiation. In this study, zebrafish larvae were used as an in vivo model to investigate the potential risks and molecular mechanisms of the toxic effects of BPs. The effects of these BPs on the gene expression in the aryl hydrocarbon receptor pathway, estrogen receptor pathway, and sex differentiation were detected using quantitative real-time PCR. All BPs were found to function as agonists of the estrogen receptors α and β1, indicating that these BPs likely undergo similar molecular metabolism in vivo, whereby they can activate cytochrome P450 genes and promote the expression of CYP19A and DMRT1. Furthermore, the gene expression profile of larvae after BP3 exposure was evaluated using a whole transcriptome sequencing approach. BP3 affected estradiol biosynthesis and sex differentiation. It also regulated gonadotropin-releasing hormone, thus interfering with the endocrine system. As a xenobiotic toxicant, BP3 upregulated the expression of cytochrome P450 genes (CYP1A and CYP3A65) and glutathione metabolism-related genes (GSTA, GSTM, and GSTP). It also interfered with the nervous system by regulating the calcium signaling pathway. These findings will be useful for understanding the toxicity mechanisms and metabolism of BPs in aquatic organisms and promote the regulation of these chemicals in the environment.
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Affiliation(s)
- Qi Meng
- School of Life Sciences, The Chinese University of Hong Kong, Sha Tin, N.T., Hong Kong
| | - Karen Yeung
- School of Life Sciences, The Chinese University of Hong Kong, Sha Tin, N.T., Hong Kong
| | - Man Long Kwok
- School of Life Sciences, The Chinese University of Hong Kong, Sha Tin, N.T., Hong Kong
| | - Chun Ting Chung
- School of Life Sciences, The Chinese University of Hong Kong, Sha Tin, N.T., Hong Kong
| | - Xue Lei Hu
- School of Life Sciences, The Chinese University of Hong Kong, Sha Tin, N.T., Hong Kong
| | - King Ming Chan
- School of Life Sciences, The Chinese University of Hong Kong, Sha Tin, N.T., Hong Kong.
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38
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Beato S, Toledo-Solís FJ, Fernández I. Vitamin K in Vertebrates' Reproduction: Further Puzzling Pieces of Evidence from Teleost Fish Species. Biomolecules 2020; 10:E1303. [PMID: 32917043 PMCID: PMC7564532 DOI: 10.3390/biom10091303] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 09/04/2020] [Accepted: 09/04/2020] [Indexed: 12/15/2022] Open
Abstract
Vitamin K (VK) is a fat-soluble vitamin that vertebrates have to acquire from the diet, since they are not able to de novo synthesize it. VK has been historically known to be required for the control of blood coagulation, and more recently, bone development and homeostasis. Our understanding of the VK metabolism and the VK-related molecular pathways has been also increased, and the two main VK-related pathways-the pregnane X receptor (PXR) transactivation and the co-factor role on the γ-glutamyl carboxylation of the VK dependent proteins-have been thoroughly investigated during the last decades. Although several studies evidenced how VK may have a broader VK biological function than previously thought, including the reproduction, little is known about the specific molecular pathways. In vertebrates, sex differentiation and gametogenesis are tightly regulated processes through a highly complex molecular, cellular and tissue crosstalk. Here, VK metabolism and related pathways, as well as how gametogenesis might be impacted by VK nutritional status, will be reviewed. Critical knowledge gaps and future perspectives on how the different VK-related pathways come into play on vertebrate's reproduction will be identified and proposed. The present review will pave the research progress to warrant a successful reproductive status through VK nutritional interventions as well as towards the establishment of reliable biomarkers for determining proper nutritional VK status in vertebrates.
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Affiliation(s)
- Silvia Beato
- Campus de Vegazana, s/n, Universidad de León (ULE), 24071 León, Spain;
| | - Francisco Javier Toledo-Solís
- Consejo Nacional de Ciencia y Tecnología (CONACYT, México), Av. Insurgentes Sur 1582, Col. Crédito Constructor, Alcaldía Benito Juárez, C.P. 03940 Ciudad de Mexico, Mexico;
- Department of Biology and Geology, University of Almería, 04120 Almería, Spain
| | - Ignacio Fernández
- Center for Aquaculture Research, Agrarian Technological Institute of Castile and Leon, Ctra. Arévalo, s/n, 40196 Zamarramala, Segovia, Spain
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Hussain A, Gilloteaux J. The human testes: Estrogen and ageing outlooks. TRANSLATIONAL RESEARCH IN ANATOMY 2020. [DOI: 10.1016/j.tria.2020.100073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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40
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Zhang X, Wang H, Feng T, Yang J, Huang Q, Lu C, Guan Y, Sun R, Chen M, Qian Y. The relationship between semen factors and unexplained recurrent spontaneous abortion. Clin Chim Acta 2020; 510:605-612. [PMID: 32827532 DOI: 10.1016/j.cca.2020.08.022] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Revised: 08/07/2020] [Accepted: 08/12/2020] [Indexed: 11/19/2022]
Abstract
BACKGROUND The male factor may contribute to unexplained recurrent spontaneous abortion (URSA). The relationship between semen factors and URSA is largely unknown. The analysis of metabolomics which is broadly acknowledged as the omics closest to the phenotype is suitable for providing assistance in the semen parameters analysis. METHODS We conducted a study including couples with URSA and controls which was next combined with a meta-analysis, and finally the study included 2352 subjects on semen parameters and URSA. Metabolomics analysis was conducted to detect semen metabolic factors related to URSA in total of 106 samples including seminal plasma and sperm cells. RESULTS The URSA group had significantly lower total sperm count, sperm concentration, motility and normal morphology percentage. Meta-analysis next showed consistent findings. Metabolomics revealed that 4 metabolites and one pathway and 8 metabolites and one pathway were significantly associated with URSA in sperm and seminal plasma, respectively. The combination of ascorbic acid and guanine in seminal plasma and hexadecanedioic acid and pyroglutamic acid in sperm showed ability for URSA prediction. CONCLUSION We provided novel insights into semen indices in relation to URSA. Lower sperm number and quality might increase the risk of URSA, and oxidative stress and hormone metabolism in sperm as well as nucleic acid synthesis and oxidative stress in seminal plasma were related to URSA.
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Affiliation(s)
- Xinyue Zhang
- Reproductive Medical Center of Second Affiliated Hospital of Nanjing Medical University, Nanjing 210011, China
| | - Hui Wang
- Department of Histology and Embryology, School of Basic Medical Sciences, Nanjing Medical University, Nanjing 211166, China
| | - Ting Feng
- Reproductive Medical Center of Second Affiliated Hospital of Nanjing Medical University, Nanjing 210011, China
| | - Jihong Yang
- Reproductive Medical Center of Second Affiliated Hospital of Nanjing Medical University, Nanjing 210011, China
| | - Qianqian Huang
- Reproductive Medical Center of Second Affiliated Hospital of Nanjing Medical University, Nanjing 210011, China
| | - Chaoyi Lu
- Reproductive Medical Center of Second Affiliated Hospital of Nanjing Medical University, Nanjing 210011, China
| | - Yusheng Guan
- State Key Laboratory of Reproductive Medicine, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China; Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Rongli Sun
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, 210009, China
| | - Minjian Chen
- State Key Laboratory of Reproductive Medicine, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China; Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China.
| | - Yun Qian
- Reproductive Medical Center of Second Affiliated Hospital of Nanjing Medical University, Nanjing 210011, China.
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41
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Zhou Y, Zhang D, Sun D, Cui S. Zearalenone affects reproductive functions of male offspring via transgenerational cytotoxicity on spermatogonia in mouse. Comp Biochem Physiol C Toxicol Pharmacol 2020; 234:108766. [PMID: 32339757 DOI: 10.1016/j.cbpc.2020.108766] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Revised: 03/22/2020] [Accepted: 04/11/2020] [Indexed: 12/12/2022]
Abstract
Previous studies have demonstrated that Zearalenone (ZEA) affects not only maternal reproductive function but also that of the offspring. However, the transgenerational toxic effects of ZEA on the spermatogonia of male F1 mice are not clear. The present study was thus designed to determine whether the fertility of male F1 mice was affected following exposure of F0 pregnant mice to ZEA. In present study, 32 pregnant female mice were divided into 4 groups and exposed to ZEA of 0, 2.5 and 5.0 mg/kg, respectively, and the testis development and reproductive performance of 96 male F1 mice were analyzed. The results demonstrated that the F0 pregnant mice treated with ZEA resulted in increased anogenital distances in the newborn male F1 mice. Moreover, ZEA caused abnormal vacuole structures and loose connections in the testes of male F1 offspring, compared with the controls. Further ultramicrostructural analysis showed that the mitochondria appeared to be vacuolated with ablated membranes and cristae, and this was accompanied by the presence of large lipid droplets in the spermatogonia. Further, the semen quality and sperm counts declined significantly, and increased malformation rates and decreased testosterone levels were observed in the male F1 offspring from experimental groups. Our results reveal the toxic effects of ZEA on F0 pregnant mice is transgenerational, and affects the fertility of male F1 mice by damaging the spermatogonial cells. This offers a new viewpoint of ZEA-induced reproductive toxicity in male animals and provides a new potential direction for the treatment and prevention of ZEA-induced cytotoxicity.
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Affiliation(s)
- Yewen Zhou
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing 100193, People's Republic of China; College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, Jiangsu, People's Republic of China
| | - Di Zhang
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, Jiangsu, People's Republic of China; Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, Jiangsu, People's Republic of China
| | - Dehao Sun
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing 100193, People's Republic of China.
| | - Sheng Cui
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing 100193, People's Republic of China; College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, Jiangsu, People's Republic of China; Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, Jiangsu, People's Republic of China; Joint International Research Laboratory of Agriculture and Agri-Product Safety, the Ministry of Education of China, Yangzhou University, Yangzhou 225009, Jiangsu, People's Republic of China.
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42
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Leisegang K, Sengupta P, Agarwal A, Henkel R. Obesity and male infertility: Mechanisms and management. Andrologia 2020; 53:e13617. [PMID: 32399992 DOI: 10.1111/and.13617] [Citation(s) in RCA: 97] [Impact Index Per Article: 24.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Revised: 03/26/2020] [Accepted: 04/01/2020] [Indexed: 02/06/2023] Open
Abstract
Obesity is considered a global health problem affecting more than a third of the population. Complications of obesity include cardiovascular diseases, type 2 diabetes mellitus, malignancy (including prostatic cancer), neurodegeneration and accelerated ageing. In males, these further include erectile dysfunction, poor semen quality and subclinical prostatitis. Although poorly understood, important mediators of obesity that may influence the male reproductive system include hyperinsulinemia, hyperleptinemia, chronic inflammation and oxidative stress. Obesity is known to disrupt male fertility and the reproduction potential, particularly through alteration in the hypothalamic-pituitary-gonadal axis, disruption of testicular steroidogenesis and metabolic dysregulation, including insulin, cytokines and adipokines. Importantly, obesity and its underlying mediators result in a negative impact on semen parameters, including sperm concentration, motility, viability and normal morphology. Moreover, obesity inhibits chromatin condensation, DNA fragmentation, increases apoptosis and epigenetic changes that can be transferred to the offspring. This review discusses the impact of obesity on the male reproductive system and fertility, including associated mechanisms. Furthermore, weight management strategies, lifestyle changes, prescription medication, and complementary and alternative medicine in the management of obesity-induced subfertility is discussed.
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Affiliation(s)
- Kristian Leisegang
- School of Natural Medicine, University of the Western Cape, Cape Town, South Africa
| | - Pallav Sengupta
- Department of Physiology, Faculty of Medicine, Bioscience and Nursing, MAHSA University, Selangor, Malaysia
| | - Ashok Agarwal
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA
| | - Ralf Henkel
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA.,Department of Medical Bioscience, University of the Western Cape, Cape Town, South Africa
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Ivanski F, de Oliveira VM, de Oliveira IM, de Araújo Ramos AT, de Oliveira Tonete ST, de Oliveira Hykavei G, Bargi-Souza P, Schiessel DL, Martino-Andrade AJ, Romano MA, Marino Romano R. Prepubertal acrylamide exposure causes dose-response decreases in spermatic production and functionality with modulation of genes involved in the spermatogenesis in rats. Toxicology 2020; 436:152428. [PMID: 32151602 DOI: 10.1016/j.tox.2020.152428] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Revised: 02/28/2020] [Accepted: 03/05/2020] [Indexed: 11/29/2022]
Abstract
The increase in human infertility prevalence due to male reproductive disorders has been associated with extensive endocrine-disrupting chemical (EDC) exposure. Acrylamide (AA) is a compound formed spontaneously during heat processing of some foods that are mainly consumed by children and adolescents. In this study, we evaluated the prepubertal AA exposure effects on male adult reproductive physiology using a prepubertal experimental model to analyze the pubertal development, spermatogenesis hormones levels and genes expression involved in male reproductive function. This study is the first one to use the validated protocol to correlate the AA exposure with puberty development, as well as the AA-induced endocrine disrupting effects on reproductive axis. AA did not affect the age at puberty, the reproductive organ's weight and serum hormonal levels. AA reduces spermatogenesis, induces morphological and functional defects on sperm and alters transcript expression of sexual hormone receptors (Ar and Esr2), the transcript expression of Tnf, Egr2, Rhcg and Lrrc34. These findings suggest that excessive AA consumption may impair their reproductive capacity at adulthood, despite no changes in hormonal profile being observed.
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Affiliation(s)
- Fernanda Ivanski
- Laboratory of Reproductive Toxicology, Department of Medicine, State University of Central-West, Rua Simeao Camargo Varela de Sa, 03, 85040-080, Parana, Brazil.
| | - Viviane Matoso de Oliveira
- Laboratory of Reproductive Toxicology, Department of Medicine, State University of Central-West, Rua Simeao Camargo Varela de Sa, 03, 85040-080, Parana, Brazil.
| | - Isabela Medeiros de Oliveira
- Laboratory of Reproductive Toxicology, Department of Medicine, State University of Central-West, Rua Simeao Camargo Varela de Sa, 03, 85040-080, Parana, Brazil.
| | - Anderson Tadeu de Araújo Ramos
- Department of Physiology, Animal Endocrine and Reproductive Physiology Laboratory, Federal University of Paraná (UFPR), Centro Politécnico, 81531-980,PO Box 19031, Curitiba, Parana, Brazil.
| | - Selma Thaisa de Oliveira Tonete
- Laboratory of Reproductive Toxicology, Department of Medicine, State University of Central-West, Rua Simeao Camargo Varela de Sa, 03, 85040-080, Parana, Brazil.
| | - Gabriel de Oliveira Hykavei
- Laboratory of Reproductive Toxicology, Department of Medicine, State University of Central-West, Rua Simeao Camargo Varela de Sa, 03, 85040-080, Parana, Brazil.
| | - Paula Bargi-Souza
- Department of Physiology and Biophysics, Institute of Biological Sciences, Federal University of Minas Gerais, Avenida Presidente Antônio Carlos, 6627, 31270-901, Minas Gerais, Brazil.
| | - Dalton Luiz Schiessel
- Department of Nutrition, State University of Central-West, Rua Simeao Camargo Varela de Sa, 03, Zip-Code 85040-080, Parana, Brazil.
| | - Anderson Joel Martino-Andrade
- Department of Physiology, Animal Endocrine and Reproductive Physiology Laboratory, Federal University of Paraná (UFPR), Centro Politécnico, 81531-980,PO Box 19031, Curitiba, Parana, Brazil.
| | - Marco Aurelio Romano
- Laboratory of Reproductive Toxicology, Department of Medicine, State University of Central-West, Rua Simeao Camargo Varela de Sa, 03, 85040-080, Parana, Brazil.
| | - Renata Marino Romano
- Laboratory of Reproductive Toxicology, Department of Medicine, State University of Central-West, Rua Simeao Camargo Varela de Sa, 03, 85040-080, Parana, Brazil.
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Moustafa A. Effect of Light-Dark Cycle Misalignment on the Hypothalamic-Pituitary-Gonadal Axis, Testicular Oxidative Stress, and Expression of Clock Genes in Adult Male Rats. Int J Endocrinol 2020; 2020:1426846. [PMID: 33204259 PMCID: PMC7666629 DOI: 10.1155/2020/1426846] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Revised: 07/07/2020] [Accepted: 07/13/2020] [Indexed: 01/18/2023] Open
Abstract
This study investigated the influence of circadian misalignment on the male reproductive system. Adult Sprague-Dawley male rats were exposed to prolonged light (20 h light : 4 h dark) or prolonged darkness (4 h light : 20 h dark) for 12 consecutive weeks. The somatic index of seminal vesicles and prostates increased due to prolonged light exposure. Sperm count and motility were enhanced solely by prolonged light exposure, whereas the percentage of sperm abnormalities was reduced by both prolonged light and darkness. The serum levels of reproductive hormones (follicle-stimulating hormone, luteinizing hormone, testosterone, and prolactin) were elevated, and the estradiol level was reduced by long-term light and dark exposure. Testicular total antioxidant capacity and antioxidant enzyme activities were improved, and lipid peroxidation was inhibited following chronic exposure to light or dark. Chronic light exposure increased, but chronic darkness decreased, testicular nitric oxide production. The mRNA expression of the hypothalamic and testicular clock genes including PER1-2, CRY1-2, BMAL1, CLOCK, and Rev-Erbα was altered by circadian disruption. Prolonged light exposure decreased the levels of thyroid hormones and suppressed the mRNA expression of adiponectin receptors 1 and 2. The immunohistochemical expression of proliferating cell nuclear antigen was decreased only by chronic darkness. The present study thus provides new insights into the physiological changes associated with long-term exposure to light or darkness, in which the expression levels of various clock gene mRNAs are modulated, reproductive hormones are increased, and the antioxidant enzyme system is ameliorated as mechanisms of adaptation to chronic circadian disruption.
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Affiliation(s)
- Amira Moustafa
- Department of Physiology, Faculty of Veterinary Medicine, Zagazig University, Zagazig 44519, Egypt
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Adedara IA, Abiola MA, Adegbosin AN, Odunewu AA, Farombi EO. Impact of binary waterborne mixtures of nickel and zinc on hypothalamic-pituitary-testicular axis in rats. CHEMOSPHERE 2019; 237:124501. [PMID: 31398612 DOI: 10.1016/j.chemosphere.2019.124501] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Revised: 07/28/2019] [Accepted: 07/30/2019] [Indexed: 06/10/2023]
Abstract
Several evidences from the literature showed that the coexistence of nickel and zinc in polluted waters is related to the similarity in their geogenic and anthropogenic factors. Although most environmental exposures to metals do not occur singly, there is a paucity of scientific knowledge on the effects of zinc and nickel co-exposure on mammalian reproductive health. The present study investigated the influence of co-exposure to nickel and zinc on male reproductive function in rats. Experimental rats were co-exposed to environmentally relevant concentrations of waterborne nickel (75 and 150 μg NiCl2 L-1) and zinc (100 and 200 μg ZnCl2 L-1) for 45 successive days. Subsequently, reproductive hormones were assayed whereas the hypothalamus, epididymis and testes of the rats were processed for the assessment of oxidative stress and inflammation indices, caspase-3 activity and histology. Results indicated that co-exposure to nickel and zinc significantly (p < 0.05) abolished nickel-mediated diminution of antioxidant defense mechanisms while diminishing levels of reactive oxygen and nitrogen species and lipid peroxidation in the hypothalamus, epididymis and testes of the exposed rats. Additionally, co-exposure to zinc abated nickel-mediated diminutions in luteinizing hormone, follicle-stimulating hormone, serum and intra-testicular testosterone with concomitant enhancement of sperm production and quality. Further, zinc abrogated nickel-mediated elevation in inflammatory biomarkers including nitric oxide, tumor necrosis factor alpha, interleukin-1 beta as well as caspase-3 activity. The protective influence of zinc on nicked-induced reproductive toxicity was well supported by histological data. Overall, zinc ameliorated nickel-induced reproductive dysfunction via its anti-oxidant, anti-inflammatory, anti-apoptotic and spermato-protective activities in rats.
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Affiliation(s)
- Isaac A Adedara
- Drug Metabolism and Toxicology Research Laboratories, Department of Biochemistry, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - Michael A Abiola
- Drug Metabolism and Toxicology Research Laboratories, Department of Biochemistry, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - Adedayo N Adegbosin
- Drug Metabolism and Toxicology Research Laboratories, Department of Biochemistry, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - Ajibola A Odunewu
- Drug Metabolism and Toxicology Research Laboratories, Department of Biochemistry, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - Ebenezer O Farombi
- Drug Metabolism and Toxicology Research Laboratories, Department of Biochemistry, College of Medicine, University of Ibadan, Ibadan, Nigeria.
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Serra H, Beausoleil C, Habert R, Minier C, Picard-Hagen N, Michel C. Evidence for Bisphenol B Endocrine Properties: Scientific and Regulatory Perspectives. ENVIRONMENTAL HEALTH PERSPECTIVES 2019; 127:106001. [PMID: 31617754 PMCID: PMC6867436 DOI: 10.1289/ehp5200] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Revised: 08/30/2019] [Accepted: 09/04/2019] [Indexed: 05/21/2023]
Abstract
BACKGROUND The substitution of bisphenol A (BPA) by bisphenol B (BPB), a very close structural analog, stresses the need to assess its potential endocrine properties. OBJECTIVE This analysis aimed to investigate whether BPB has endocrine disruptive properties in humans and in wildlife as defined by the World Health Organization (WHO) definition used in the regulatory field, that is, a) adverse effects, b) endocrine activity, and c) plausible mechanistic links between the observed endocrine activity and adverse effects. METHODS We conducted a systematic review to identify BPB adverse effects and endocrine activities by focusing on animal models and in vitro mechanistic studies. The results were grouped by modality (estrogenic, androgenic, thyroid hormone, steroidogenesis-related, or other endocrine activities). After critical analysis of results, lines of evidence were built using a weight-of-evidence approach to establish a biologically plausible link. In addition, the ratio of BPA to BPB potency was reported from studies investigating both bisphenols. RESULTS Among the 36 articles included in the analysis, 3 subchronic studies consistently reported effects of BPB on reproductive function. In rats, the 28-d and 48-week studies showed alteration of spermatogenesis associated with a lower height of the seminiferous tubules, the alteration of several sperm parameters, and a weight loss for the testis, epididymis, and seminal vesicles. In zebrafish, the results of a 21-d reproductive study demonstrated that exposed fish had a lower egg production and a lower hatching rate and viability. The in vitro and in vivo mechanistic data consistently demonstrated BPB's capacity to decrease testosterone production and to exert an estrogenic-like activity similar to or greater than BPA's, both pathways being potentially responsible for spermatogenesis impairment in rats and fish. CONCLUSION The available in vivo, ex vivo, and in vitro data, although limited, coherently indicates that BPB meets the WHO definition of an endocrine disrupting chemical currently used in a regulatory context. https://doi.org/10.1289/EHP5200.
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Affiliation(s)
- Hélène Serra
- Chemical Substances Assessment Unit, Risk Assessment Department, French Agency for Food, Environmental and Occupational Health Safety (ANSES), Maisons-Alfort, France
| | - Claire Beausoleil
- Chemical Substances Assessment Unit, Risk Assessment Department, French Agency for Food, Environmental and Occupational Health Safety (ANSES), Maisons-Alfort, France
| | - René Habert
- Unit of Genetic Stability, Stem Cells and Radiation, Laboratory of Development of the Gonads, University Paris Diderot, Institut national de la santé et de la recherche médicale (Inserm) U 967 – CEA, Fontenay-aux-Roses, France
| | - Christophe Minier
- UMR I-2 Laboratoire Stress Environnementaux et BIOsurveillance des milieux aquatique (SEBIO), Normandie University, Le Havre, France
| | - Nicole Picard-Hagen
- Toxalim, Institut National de la Recherche Agronomique (INRA), Toulouse University, Ecole Nationale Vétérinaire de Toulouse (ENVT), Ecole d’Ingénieurs de Purpan (EIP), Université Paul Sabatier (UPS), Toulouse, France
| | - Cécile Michel
- Chemical Substances Assessment Unit, Risk Assessment Department, French Agency for Food, Environmental and Occupational Health Safety (ANSES), Maisons-Alfort, France
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Skibinska I, Andrusiewicz M, Soin M, Jendraszak M, Urbaniak P, Jedrzejczak P, Kotwicka M. Increased expression of PELP1 in human sperm is correlated with decreased semen quality. Asian J Androl 2019; 20:425-431. [PMID: 29676290 PMCID: PMC6116689 DOI: 10.4103/aja.aja_11_18] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
Proline-, glutamic acid-, and leucine-rich protein 1 (PELP1) is a scaffolding protein involved in both genomic and nongenomic estrogen signal transduction pathways. To date, the role of PELP1 protein has yet to be characterized in human sperm and has not been associated with sperm parameters. To confirm the presence of PELP1 in human sperm, fresh semen samples were obtained from 178 donors. The study was designed to establish both mRNA and protein presence, and protein cellular localization. Additionally, the number of PELP1-positive spermatozoa was analyzed in men with normal and abnormal semen parameters. Sperm parameters were assessed according to the World Health Organization (WHO) 2010 standards. The presence of PELP1 in spermatozoa was investigated using four precise, independent techniques. The qualitative presence of transcripts and protein was assessed using reverse transcription-polymerase chain reaction (RT-PCR) and western blot protocols, respectively. The cellular localization of PELP1 was investigated by immunocytochemistry. Quantitative analysis of PELP1-positive cells was done by flow cytometry. PELP1 mRNA and protein was confirmed in spermatozoa. Immunocytochemical analysis identified the presence of PELP1 in the midpieces of human sperm irrespective of sperm parameters. Becton Dickinson fluorescence-activated cell sorting (FACSCalibur™) analysis revealed a significantly lower number of PELP1-positive cells in males with normal semen parameters versus abnormal samples (42.78% ± 11.77% vs 61.05% ± 21.70%, respectively; P = 0.014). The assessment of PELP1 may be a time-saving method used to obtain information about sperm quality. The results of our study suggest that PEPL1 may be utilized as an indicator of sperm quality; thereby, PELP1 may be an additional biomarker useful in the evaluation of male infertility.
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Affiliation(s)
- Izabela Skibinska
- Department of Cell Biology, Faculty of Health Sciences, Poznan University of Medical Sciences, Rokietnicka 5D, Poznan 60-806, Poland
| | - Miroslaw Andrusiewicz
- Department of Cell Biology, Faculty of Health Sciences, Poznan University of Medical Sciences, Rokietnicka 5D, Poznan 60-806, Poland
| | - Michal Soin
- Department of Cell Biology, Faculty of Health Sciences, Poznan University of Medical Sciences, Rokietnicka 5D, Poznan 60-806, Poland
| | - Magdalena Jendraszak
- Department of Cell Biology, Faculty of Health Sciences, Poznan University of Medical Sciences, Rokietnicka 5D, Poznan 60-806, Poland
| | - Paulina Urbaniak
- Department of Cell Biology, Faculty of Health Sciences, Poznan University of Medical Sciences, Rokietnicka 5D, Poznan 60-806, Poland
| | - Piotr Jedrzejczak
- Division of Infertility and Reproductive Endocrinology, Faculty of Medicine I, Poznan University of Medical Sciences, Polna 33, Poznan 60-535, Poland
| | - Malgorzata Kotwicka
- Department of Cell Biology, Faculty of Health Sciences, Poznan University of Medical Sciences, Rokietnicka 5D, Poznan 60-806, Poland
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48
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Nirmali WKR, Warnakula L, Cooray R, Hapuarachchi NS, Magamage MPS. Determination of testicular estrogen receptor alpha expression of male chickens ( Gallus domesticus) with age. Vet World 2019; 12:994-997. [PMID: 31528023 PMCID: PMC6702574 DOI: 10.14202/vetworld.2019.994-997] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2019] [Accepted: 05/13/2019] [Indexed: 01/09/2023] Open
Abstract
Background and Aim: Estrogen activity, a central component of reproductive growth, is regulated by the receptor proteins, estrogen receptor alpha (ERα), and ER beta (ERβ) in chickens as in many other species. ERα expresses predominantly in gonads. Although the expression of ERα in embryonic gonads has been studied in detail, the expression of ERα in post-hatching male gonads has not been studied adequately. Therefore, the current research was conducted to determine the post-hatching changes in the expression of ERα in the left gonads of male chickens with age. Materials and Methods: Shaver Brown male chickens were raised and cared for according to the management guide and sacrificed at the intervals of 1, 4, and 8 weeks of age. The total RNA was extracted from the left gonads using the Trizol method and reverse transcribed using a pair of gene-specific primers. Following polymerase chain reaction amplification, the expression of ERα was quantified relative to the expression of the reference gene GAPDH. Results: The results showed that ERα expression significantly increases with age at p=0.0032. However, the increment of ERα expression from week 1 to week 4 was 2.04-fold and from week 4 to week 8 was 1.39-fold, with the later age reflecting a diminishing pattern in the increment. Conclusion: These results differentiate the post-hatching ERα expression of the left gonads of male chickens increase with age but with a diminishing gradient that may support their reproductive functions in later stages of life.
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Affiliation(s)
- W K Ramesha Nirmali
- Laboratory of Reproductive Biology and Animal Biotechnology, Department of Livestock Production, Faculty of Agricultural Sciences, Sabaragamuwa University of Sri Lanka, Belihuloya, Sri Lanka.,Section of Genetics, Institute for Research and Development, Colombo, Sri Lanka
| | - Lakshan Warnakula
- Section of Genetics, Institute for Research and Development, Colombo, Sri Lanka
| | - Ruwini Cooray
- Section of Genetics, Institute for Research and Development, Colombo, Sri Lanka
| | | | - Manjula P S Magamage
- Laboratory of Reproductive Biology and Animal Biotechnology, Department of Livestock Production, Faculty of Agricultural Sciences, Sabaragamuwa University of Sri Lanka, Belihuloya, Sri Lanka
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Ragusa M, Barbagallo D, Chioccarelli T, Manfrevola F, Cobellis G, Di Pietro C, Brex D, Battaglia R, Fasano S, Ferraro B, Sellitto C, Ambrosino C, Roberto L, Purrello M, Pierantoni R, Chianese R. CircNAPEPLD is expressed in human and murine spermatozoa and physically interacts with oocyte miRNAs. RNA Biol 2019; 16:1237-1248. [PMID: 31135264 DOI: 10.1080/15476286.2019.1624469] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Circular RNAs (circRNAs) have a critical role in the control of gene expression. Their function in spermatozoa (SPZ) is unknown to date. Twenty-eight genes, involved in SPZ/testicular and epididymal physiology, were given in circBase database to find which of them may generate circular transcripts. We focused on circNAPEPLDiso1, one of the circular RNA isoforms of NAPEPLD transcript, because expressed in human and murine SPZ. In order to functionally characterize circNAPEPLDiso1 as potential microRNA (miRNA) sponge, we performed circNAPEPLDiso1-miR-CATCH and then profiled the expression of 754 miRNAs, by using TaqMan® Low Density Arrays. Among them, miRNAs 146a-5p, 203a-3p, 302c-3p, 766-3p and 1260a (some of them previously shown to be expressed in the oocyte), resulted enriched in circNAPEPLDiso1-miR-CATCHed cell lysate: the network of interactions generated from their validated targets was centred on a core of genes involved in the control of cell cycle. Moreover, computational analysis of circNAPEPLDiso1 sequence also showed its potential translation in a short form of NAPEPLD protein. Interestingly, the expression analysis in murine-unfertilized oocytes revealed low and high levels of circNAPEPLDiso1 and circNAPEPLDiso2, respectively. After fertilization, circNAPEPLDiso1 expression significantly increased, instead circNAPEPLDiso2 expression appeared constant. Based on these data, we suggest that SPZ-derived circNAPEPLDiso1 physically interacts with miRNAs primarily involved in the control of cell cycle; we hypothesize that it may represent a paternal cytoplasmic contribution to the zygote and function as a miRNA decoy inside the fertilized oocytes to regulate the first stages of embryo development. This role is proposed here for the first time.
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Affiliation(s)
- Marco Ragusa
- a Dipartimento di Scienze Biomediche e Biotecnologiche, Università di Catania , Catania , Italy.,b Oasi Research Institute - IRCCS , Troina , Italy
| | - Davide Barbagallo
- a Dipartimento di Scienze Biomediche e Biotecnologiche, Università di Catania , Catania , Italy
| | - Teresa Chioccarelli
- c Dipartimento di Medicina Sperimentale, sez "F. Bottazzi", Università della Campania "Luigi Vanvitelli" , Napoli , Italy
| | - Francesco Manfrevola
- c Dipartimento di Medicina Sperimentale, sez "F. Bottazzi", Università della Campania "Luigi Vanvitelli" , Napoli , Italy
| | - Gilda Cobellis
- c Dipartimento di Medicina Sperimentale, sez "F. Bottazzi", Università della Campania "Luigi Vanvitelli" , Napoli , Italy
| | - Cinzia Di Pietro
- a Dipartimento di Scienze Biomediche e Biotecnologiche, Università di Catania , Catania , Italy
| | - Duilia Brex
- a Dipartimento di Scienze Biomediche e Biotecnologiche, Università di Catania , Catania , Italy
| | - Rosalia Battaglia
- a Dipartimento di Scienze Biomediche e Biotecnologiche, Università di Catania , Catania , Italy
| | - Silvia Fasano
- c Dipartimento di Medicina Sperimentale, sez "F. Bottazzi", Università della Campania "Luigi Vanvitelli" , Napoli , Italy
| | - Bruno Ferraro
- d UOSD di Fisiopatologia della Riproduzione, Presidio Ospedaliero di Marcianise , Caserta , Italy
| | - Carolina Sellitto
- d UOSD di Fisiopatologia della Riproduzione, Presidio Ospedaliero di Marcianise , Caserta , Italy
| | - Concetta Ambrosino
- e Dipartimento di Scienze e Tecnologie, Università del Sannio , Benevento , Italy
| | - Luca Roberto
- f IRGS, Biogem , Ariano Irpino, Avellino , Italy
| | - Michele Purrello
- a Dipartimento di Scienze Biomediche e Biotecnologiche, Università di Catania , Catania , Italy
| | - Riccardo Pierantoni
- c Dipartimento di Medicina Sperimentale, sez "F. Bottazzi", Università della Campania "Luigi Vanvitelli" , Napoli , Italy
| | - Rosanna Chianese
- c Dipartimento di Medicina Sperimentale, sez "F. Bottazzi", Università della Campania "Luigi Vanvitelli" , Napoli , Italy
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50
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Rahmani F, Movahedin M, Mazaheri Z, Soleimani M. Transplantation of mouse iPSCs into testis of azoospermic mouse model: in vivo and in vitro study. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2019; 47:1585-1594. [PMID: 31007064 DOI: 10.1080/21691401.2019.1594854] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
This study aimed to induce spermatogenesis in azoospermic testis through induced pluripotent stem cells (iPSCs) derived spermatogonial stem cell-like cells (SSCLCs) after iPSCs in vivo and in vitro transplantation and three-dimensional organ culture. DiI-labelled mouse iPSCs were transplanted to azoospermic testis mouse model (pretreated by busulfan 40 mg/kg). This study was designed based on two experimental groups. In experimental group 1(in vivo) labelled iPSCs were transplanted to azoospermic host testis. In experimental group 2 (in vitro) after cell transplantation, fragments of host testes were set as 3D organ culture and testis without cells transplantation served as the control group by the same method. The samples were evaluated by tracing DiI, cell homing, immunohistochemistry, and quantitative RT PCR assays. 2 weeks after iPSCs transplantation, the molecular assessment showed that Plzf, Thy1, Vasa and Gfra1 expression were increased significantly (p ≤ .05) in host testis and labelled iPSCs co-localized by the Plzf and Thy1 markers expression in the base of seminiferous tubules. These findings suggest the ability of iPSCs to achieve homing in the testis niche and indicate the critical inductive role of microenvironment signals in the differentiation of iPSCs to spermatogonial stem cell-like cells.
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Affiliation(s)
- Forouzan Rahmani
- a Department of Anatomical Sciences, Faculty of Medical Science , Tarbiat Modares University , Tehran , Iran
| | - Mansoureh Movahedin
- a Department of Anatomical Sciences, Faculty of Medical Science , Tarbiat Modares University , Tehran , Iran
| | - Zohreh Mazaheri
- b Department of Anatomical Sciences, Basic Medical Research Center , Histogenotech Company , Tehran , Iran
| | - Masoud Soleimani
- c Department of Hematology and Stem Cell Therapy, Faculty of Medical Science , Tarbiat Modares University , Tehran , Iran
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