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Prantner S, Giménez-García C, Espino-Payá A, Escrig MA, Ruiz-Padial E, Ballester-Arnal R, Pastor MC. The standardization of a new Explicit Pornographic Picture Set (EPPS). Behav Res Methods 2024:10.3758/s13428-024-02418-z. [PMID: 38693442 DOI: 10.3758/s13428-024-02418-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/02/2024] [Indexed: 05/03/2024]
Abstract
Pictures with affective content have been extensively used in scientific studies of emotion and sexuality. However, only a few standardized picture sets have been developed that offer explicit images, with most lacking pornographic pictures depicting diverse sexual practices. This study aimed to fill this gap through developing a standardized affective set of diverse pornographic pictures (masturbation, oral sex, vaginal sex, anal sex, group sex, paraphilia) of same-sex and opposite-sex content, offering dimensional affective ratings of valence, arousal, and dominance, as well as co-elicited discrete emotions (disgust, moral and ethical acceptance). In total, 192 pornographic pictures acquired from online pornography platforms and 24 control IAPS images have been rated by 319 participants (Mage = 22.66, SDage = 4.66) with self-reported same- and opposite-sex sexual attraction. Stimuli were representative of the entire affective space, including positively and negatively perceived pictures. Participants showed differential affective perception of pornographic pictures according to gender and sexual attraction. Differences in affective ratings related to participants' gender and sexual attraction, as well as stimuli content (depicted sexual practices and sexes). From the stimuli set, researchers can select explicit pornographic pictures based on the obtained affective ratings and technical parameters (i.e., pixel size, luminosity, color space, contrast, chromatic complexity, spatial frequency, entropy). The stimuli set may be considered a valid tool of diverse explicit pornographic pictures covering the affective space, in particular, for women and men with same- and opposite-sex sexual attraction. This new explicit pornographic picture set (EPPS) is available to the scientific community for non-commercial use.
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Affiliation(s)
- Sabine Prantner
- Departamento de Psicología Básica, Clínica y Psicobiología, Facultad de Ciencias de la Salud, Universitat Jaume I, Castelló de la Plana, Spain
| | - Cristina Giménez-García
- Departamento de Psicología Básica, Clínica y Psicobiología, Facultad de Ciencias de la Salud, Universitat Jaume I, Castelló de la Plana, Spain
| | - Alejandro Espino-Payá
- Institute for Biomagnetism and Biosignalanalysis, University of Münster, Münster, Germany
| | - Miguel A Escrig
- Departamento de Psicología, Facultad de Ciencias de la Salud, Universidad Europea de Valencia, Valencia, Spain
| | | | - Rafael Ballester-Arnal
- Departamento de Psicología Básica, Clínica y Psicobiología, Facultad de Ciencias de la Salud, Universitat Jaume I, Castelló de la Plana, Spain
| | - M Carmen Pastor
- Departamento de Psicología Básica, Clínica y Psicobiología, Facultad de Ciencias de la Salud, Universitat Jaume I, Castelló de la Plana, Spain.
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Ye L, Su M, Qiao X, Wang S, Zheng K, Zhu Y, Li H, Wang Y, Ge RS. Chalcone derivatives from licorice inhibit human and rat gonadal 3β-hydroxysteroid dehydrogenases as therapeutic uses. JOURNAL OF ETHNOPHARMACOLOGY 2023; 317:116690. [PMID: 37245711 DOI: 10.1016/j.jep.2023.116690] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 04/26/2023] [Accepted: 05/26/2023] [Indexed: 05/30/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE In traditional Chinese medicine, licorice (the roots of Glycyrrhiza glabra and G. inflata) has been used to treat inflammation and sexual debility for over 1000 years. Pharmacological studies have identified many biologically active chalcone derivatives from licorice. AIM OF THE STUDY Human 3β-Hydroxysteroid dehydrogenase 2 (h3β-HSD2) catalyzes the formation of precursors for sex hormones and corticosteroids, which play critical roles in reproduction and metabolism. We explored inhibition and mode action of chalcones of inhibiting h3β-HSD2 and compared it with rat 3β-HSD1. MATERIALS AND METHODS We investigated the inhibition of 5 chalcones on h3β-HSD2 and compared species-dependent difference with 3β-HSD1. RESULTS The inhibitory strength on h3β-HSD2 was isoliquiritigenin (IC50, 0.391 μM) > licochalcone A (0.494 μM) > licochalcone B (1.485 μM) > echinatin (1.746 μM) >chalcone (100.3 μM). The inhibitory strength on r3β-HSD1 was isoliquiritigenin (IC50, 0.829 μM) > licochalcone A (1.165 μM) > licochalcone B (1.866 μM) > echinatin (2.593 μM) > chalcone (101.2 μM). Docking showed that all chemicals bind steroid and/or NAD+-binding site with the mixed mode. Structure-activity relationship analysis showed that strength was correlated with chemical's hydrogen bond acceptor. CONCLUSION Some chalcones are potent h3β-HSD2 and r3β-HSD1 inhibitors, possibly being potential drugs to treat Cushing's syndrome or polycystic ovarian syndrome.
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Affiliation(s)
- Lei Ye
- Department of Pathology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, China; Department of Anesthesiology and Perioperative Medicine, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, China; Key Laboratory of Pediatric Anesthesiology, Ministry of Education, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China; Key Laboratory of Anesthesiology of Zhejiang Province, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China; Key Laboratory of Structural Malformations in Children of Zhejiang Province, Key Laboratory of Environment and Male Reproductive Medicine of Wenzhou, 325000, Zhejiang Province, China
| | - Ming Su
- Department of Anesthesiology and Perioperative Medicine, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, China; Key Laboratory of Pediatric Anesthesiology, Ministry of Education, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China; Key Laboratory of Anesthesiology of Zhejiang Province, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China; Key Laboratory of Structural Malformations in Children of Zhejiang Province, Key Laboratory of Environment and Male Reproductive Medicine of Wenzhou, 325000, Zhejiang Province, China
| | - Xinyi Qiao
- Department of Pathology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, China
| | - Shaowei Wang
- Department of Obstetrics and Gynecology, the Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, China
| | - Ke Zheng
- Department of Pathology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, China
| | - Yang Zhu
- Department of Anesthesiology and Perioperative Medicine, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, China; Key Laboratory of Pediatric Anesthesiology, Ministry of Education, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China; Key Laboratory of Anesthesiology of Zhejiang Province, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China
| | - Huitao Li
- Department of Anesthesiology and Perioperative Medicine, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, China; Key Laboratory of Pediatric Anesthesiology, Ministry of Education, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China; Key Laboratory of Anesthesiology of Zhejiang Province, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China
| | - Yiyan Wang
- Department of Anesthesiology and Perioperative Medicine, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, China; Key Laboratory of Pediatric Anesthesiology, Ministry of Education, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China; Key Laboratory of Anesthesiology of Zhejiang Province, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China.
| | - Ren-Shan Ge
- Department of Anesthesiology and Perioperative Medicine, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, China; Key Laboratory of Pediatric Anesthesiology, Ministry of Education, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China; Key Laboratory of Anesthesiology of Zhejiang Province, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China; Department of Obstetrics and Gynecology, the Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, China; Key Laboratory of Structural Malformations in Children of Zhejiang Province, Key Laboratory of Environment and Male Reproductive Medicine of Wenzhou, 325000, Zhejiang Province, China.
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Monageng E, Offor U, Takalani NB, Mohlala K, Opuwari CS. A Review on the Impact of Oxidative Stress and Medicinal Plants on Leydig Cells. Antioxidants (Basel) 2023; 12:1559. [PMID: 37627554 PMCID: PMC10451682 DOI: 10.3390/antiox12081559] [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: 06/08/2023] [Revised: 07/03/2023] [Accepted: 08/02/2023] [Indexed: 08/27/2023] Open
Abstract
Leydig cells are essential for steroidogenesis and spermatogenesis. An imbalance in the production of reactive oxygen species (ROS) and the cellular antioxidant level brings about oxidative stress. Oxidative stress (OS) results in the dysfunction of Leydig cells, thereby impairing steroidogenesis, spermatogenesis, and ultimately, male infertility. To prevent Leydig cells from oxidative insults, there needs to be a balance between the ROS production and the cellular protective capacity of antioxidants. Evidence indicates that medicinal plants could improve Leydig cell function at specific concentrations under basal or OS conditions. The increased usage of medicinal plants has been considered a possible alternative treatment for male infertility. This review aims to provide an overview of the impact of oxidative stress on Leydig cells as well as the effects of various medicinal plant extracts on TM3 Leydig cells. The medicinal plants of interest include Aspalathus linearis, Camellia sinensis, Moringa oleifera, Morinda officinale, Taraxacum officinale, Trichilia emetica, Terminalia sambesiaca, Peltophorum africanum, Ximenia caffra, Serenoa repens, Zingiber officinale, Eugenia jambolana, and a combination of dandelion and fermented rooibos (CRS-10). According to the findings obtained from studies conducted on the evaluated medicinal plants, it can, therefore, be concluded that the medicinal plants maintain the antioxidant profile of Leydig cells under basal conditions and have protective or restorative effects following exposure to oxidative stress. The available data suggest that the protective role exhibited by the evaluated plants may be attributed to their antioxidant content. Additionally, the use of the optimal dosage or concentration of the extracts in the management of oxidative stress is of the utmost importance, and the measurement of their oxidation reduction potential is recommended.
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Affiliation(s)
- Elizabeth Monageng
- Department of Medical Biosciences, Faculty of Natural Science, University of Western Cape, Cape Town 7535, South Africa
| | - Ugochukwu Offor
- School of Anatomical Sciences, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg 2193, South Africa
| | - Ndivhuho Beauty Takalani
- Department of Medical Biosciences, Faculty of Natural Science, University of Western Cape, Cape Town 7535, South Africa
| | - Kutullo Mohlala
- Department of Medical Biosciences, Faculty of Natural Science, University of Western Cape, Cape Town 7535, South Africa
| | - Chinyerum Sylvia Opuwari
- Department of Medical Biosciences, Faculty of Natural Science, University of Western Cape, Cape Town 7535, South Africa
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Molina EM, Kavazis AN, Mendonça MT, Akingbemi BT. Effects of chronic dichlorodiphenyldichloroethylene exposure on testosterone secretion and steroidogenic pathway in the male gonad. Biol Reprod 2023; 109:65-72. [PMID: 37104616 DOI: 10.1093/biolre/ioad045] [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: 06/27/2022] [Revised: 02/15/2023] [Accepted: 04/26/2023] [Indexed: 04/29/2023] Open
Abstract
Endocrine disrupting chemicals are present in the environment and/or in consumer products. These agents have the capacity to mimic and/or antagonize endogenous hormones and thus perturb the endocrine axis. The male reproductive tract expresses steroid hormone (androgen and estrogen) receptors at high levels and is a major target for endocrine disrupting chemicals. In this study, Long-Evans male rats were exposed to dichlorodiphenyldichloroethylene, a metabolite of dichlorodiphenyltrichloroethane and a chemical present in the environment, in drinking water at 0.1 and 10 μg/L for 4 weeks. At the end of exposure, we measured steroid hormone secretion and analyzed steroidogenic proteins, including 17β-hydroxysteroid dehydrogenase, 3β-hydroxysteroid dehydrogenase, steroidogenic acute regulatory protein, aromatase, and the LH receptor. We also analyzed Leydig cell apoptosis (poly-(ADP-ribose) polymerase) and caspase-3 in the testes. Testicular testosterone (T) and 17β-estradiol (E2) were both affected by exposure to dichlorodiphenyldichloroethylene by displaying altered steroidogenic enzyme expression. Dichlorodiphenyldichloroethylene exposure also increased the expression of enzymes mediating the pathway for programmed cell death, including caspase 3, pro-caspase 3, PARP, and cleaved PARP. Altogether, the present results demonstrate that dichlorodiphenyldichloroethylene directly and/or indirectly can target specific proteins involved in steroid hormone production in the male gonad and suggest that exposure to environmentally relevant dichlorodiphenyldichloroethylene levels has implications for male reproductive development and function.
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Affiliation(s)
- Erica M Molina
- Department of Biological Sciences, Auburn University, Auburn, AL, USA
| | | | - Mary T Mendonça
- Department of Biological Sciences, Auburn University, Auburn, AL, USA
| | - Benson T Akingbemi
- Department of Anatomy, Physiology and Pharmacology, Auburn University, Auburn, AL, USA
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5
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Medill SA, Janz DM, McLoughlin PD. Hair Cortisol and Testosterone Concentrations in Relation to Maturity and Breeding Status of Male Feral Horses. Animals (Basel) 2023; 13:2129. [PMID: 37443926 PMCID: PMC10339860 DOI: 10.3390/ani13132129] [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: 03/25/2023] [Revised: 06/15/2023] [Accepted: 06/23/2023] [Indexed: 07/15/2023] Open
Abstract
Steroid-hormone concentrations from non-invasively obtained biomarkers, like hair, can provide a representation of circulating hormones diffused over relatively long time periods (e.g., weeks or months). The hormone cortisol is often associated with physiological or even psychological stress, while testosterone is strongly associated with male development and reproductive success. Increasingly, studies are using hormone levels derived from hair to make inferences among both domestic animals and wildlife. For horses, all previous hair hormone analysis has been done on companion or working animals. We evaluated the levels of hair cortisol (n = 153) and testosterone (n = 48) from 136 feral horses living on Sable Island, Canada that have been part of a long-term individual-based study since 2008. This population has been undisturbed and unmanaged for over 50 years, and exhibits the natural social organization for horses, harem defense polygyny. Hair samples were collected in mid to late summer and the segment analyzed corresponds with hair grown during, and following, the peak of the reproductive season. Social position was determined based on the male's role as either a dominant breeding Stallion (Stallion), a non-breeding subordinate male (tag), adult Bachelor (5 years old or older), or Immature male (2-4 years of age). While there was no difference in hair-cortisol concentration among any class of adult males (i.e., Stallion, tag, or Bachelor), Immature males had significantly lower hair cortisol concentrations than the other groups (p = 0.001). Hair testosterone levels among the four social positions were significantly higher among Stallions (p = 0.04). Hair testosterone concentration was also significantly related to the probability of a male being either a Bachelor or Stallion and was the only variable remaining in AICc model selection (p = 0.016, AICc = 32.3, Null AICc = 38.8). While not a significant relationship, Stallions had a negative correlation between hair cortisol concentrations and testosterone (R2 = -0.20, p = 0.383), and Bachelors, conversely, had a positive association (R2 = 0.43, p = 0.246). Our observations of hormone concentrations in relation to physiological, social, or reproductive parameters in this population suggest trends that are similar to what has been established using blood or other matrices.
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Affiliation(s)
- Sarah A. Medill
- Department of Biology, University of Saskatchewan, Saskatoon, SK S7N 5C8, Canada;
| | - David M. Janz
- Department of Veterinary Biomedical Sciences, University of Saskatchewan, Saskatoon, SK S7N 5B4, Canada;
| | - Philip D. McLoughlin
- Department of Biology, University of Saskatchewan, Saskatoon, SK S7N 5C8, Canada;
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Cotticelli A, Navas L, Calabria A, Bifulco G, Campanile G, Peric T, Prandi A, D'Occhio MJ, Russo M. Incorporation of Testicular Ultrasonography and Hair Steroid Concentrations in Bull Breeding Soundness Evaluation. Vet Sci 2023; 10:373. [PMID: 37368759 DOI: 10.3390/vetsci10060373] [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: 04/18/2023] [Revised: 05/09/2023] [Accepted: 05/23/2023] [Indexed: 06/29/2023] Open
Abstract
Testicular ultrasonography and steroid concentrations (cortisol, dehydroepiandrosterone sulfate (DHEA-S), cortisol/DHEA-S ratio, testosterone) in hair were examined for their utility in the bull breeding soundness evaluation (BBSE). Beef and dairy bulls (n = 16; 2.7 ± 0.4 years old; body condition score 3.2 ± 0.1) of five breeds were maintained under the same conditions at an accredited semen collection center. Bulls underwent routine semen collection twice weekly for 12 weeks and semen was processed and cryopreserved. Ultrasonography and hair sampling were undertaken at the last semen collection. Bulls with homogeneous testicular parenchyma (n = 8) had a higher (p < 0.05) percentage of motile sperm post-thawing compared with bulls with heterogeneous parenchyma (n = 8). There were no differences (p > 0.05) in the hair concentrations of cortisol, DHEA-S, and testosterone between bulls with homogeneous and heterogeneous parenchyma. In bulls with homogeneous parenchyma, hair DHEA-S concentration was positively correlated with percentage motile sperm (R2 = 0.76), progressively motile sperm (R2 = 0.70), and motility yield (R2 = 0.71). The findings indicate that the integration of testicular ultrasonography and hair DHEA-S status in the BBSE could provide a more comprehensive assessment of indicative fertility in bulls. Additionally, ultrasonography can be used in the BBSE when the evaluation of semen parameters is not available.
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Affiliation(s)
- Alessio Cotticelli
- Department of Veterinary Medicine and Animal Production, Federico II University, 80137 Naples, Italy
| | - Luigi Navas
- Department of Veterinary Medicine and Animal Production, Federico II University, 80137 Naples, Italy
| | - Alfonso Calabria
- Department of Veterinary Medicine and Animal Production, Federico II University, 80137 Naples, Italy
| | - Giovanna Bifulco
- Department of Veterinary Medicine and Animal Production, Federico II University, 80137 Naples, Italy
| | - Giuseppe Campanile
- Department of Veterinary Medicine and Animal Production, Federico II University, 80137 Naples, Italy
| | - Tanja Peric
- Department of Agricultural, Environmental and Animal Science, University of Udine, 33100 Udine, Italy
| | - Alberto Prandi
- Department of Agricultural, Environmental and Animal Science, University of Udine, 33100 Udine, Italy
| | - Michael J D'Occhio
- Faculty of Agriculture and Environment, The University of Sydney, Sydney, NSW 2006, Australia
| | - Marco Russo
- Department of Veterinary Medicine and Animal Production, Federico II University, 80137 Naples, Italy
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Giulioni C, Maurizi V, Galosi AB. The role of physical agents' exposure in male infertility: A critical review. Arch Ital Urol Androl 2023; 95:10890. [PMID: 36924383 DOI: 10.4081/aiua.2023.10890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Accepted: 10/24/2022] [Indexed: 02/24/2023] Open
Abstract
BACKGROUND A decrease in semen quality is an increasingly widespread pathological condition worldwide. Jobs and lifestyles have changed a lot with the advancement of technology in the last few decades, and a new series of risk factors for male infertility have spread. OBJECTIVE This review aims to summarize the current literature on this relationship, evaluating alterations in semen parameters and hormonal profile. METHODS A deep research was performed through MEDLINE via PubMed, Scopus, and Web of Science on articles regarding the relationship between physical agents and male fertility over the last twenty years. Some physical agents already associated with male infertility, such as heat and radiation, while emerging ones, such as physical exertion, psychological stress and sedentary activities, were newly considered. RESULTS Most studies described sperm quality after exposure. Overall sperm impairment was shown after radiation and alteration of specific parameters, such as sperm concentration, were observed after psychological stress and sedentary work. In addition, an association was also reported between physical exertion and hormonal profile, especially pituitary hormones and testosterone. CONCLUSIONS Although the associations between physical agents and male infertility are suggestive, the level of evidence of the studies is not adequate to define their influence, except for physical exertion. Therefore, new prospective studies are necessary for the validation of the correlation and the possible safeguarding of the exposed working classes.
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Affiliation(s)
- Carlo Giulioni
- Department of Urology, Polytechnic University of Marche Region, Umberto I Hospital "Ospedali Riuniti", Ancona.
| | - Valentina Maurizi
- Department of Clinical and Molecular Sciences, Polytechnic University of Marche Region, "Ospedali Riuniti" University Hospital, Ancona.
| | - Andrea Benedetto Galosi
- Department of Urology, Polytechnic University of Marche Region, Umberto I Hospital "Ospedali Riuniti", Ancona.
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Pace V, Cattani F. Stress-related testicular changes in Wistar and Sprague-Dawley rats following oral administration of an interleukin-8 inhibitor. Toxicology 2023; 484:153395. [PMID: 36549503 DOI: 10.1016/j.tox.2022.153395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 12/01/2022] [Accepted: 12/09/2022] [Indexed: 12/23/2022]
Abstract
We describe testicular changes in Wistar and Sprague-Dawley rats following oral administration of DF2156A, a novel allosteric inhibitor of the CXCR1/CXCR2 receptors of interleukin-8. These testicular changes, which were associated with clinical signs, modifications of body weight parameters (decrease of body weight and weight gain) and a decrease of testosterone serum levels, were not considered to be a direct toxic effect of the test substance but secondary to a likely induced stress resulting from the oral administration of a high dose (200 mg/kg/day) of the test substance to male rats for a period of six weeks. Testicular changes consisted of seminiferous tubules atrophy and germinal cell degeneration and only occurred in animals presenting clinical signs of transient visible weight loss, ruffled fur and/or weakened condition, and/or decreased body weight and weight gain. A decrease in serum testosterone levels was only observed in those Sprague-Dawley rats affected by decreased body weight, weight gain and testicular changes. Only a single Wistar rat with testicular changes exhibited relevant reduced levels of circulating testosterone. Sperm analysis in terms of motility, morphology and number of sperm cells was altered in males presenting with morphological changes in the testes. Sprague-Dawley rats with testicular changes were more numerous and with more pronounced lesions than were Wistar rats.
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Affiliation(s)
- Virgilio Pace
- Preclin Consulting GmbH, Kirschgartenstrasse 2, CH-4132 Muttenz, Switzerland.
| | - Franca Cattani
- Dompé Farmaceutici spa, Via Campo Di Pile, 67100 L'Aquila, Italy.
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9
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Takada M, Fukuhara D, Takiura T, Nishibori Y, Kotani M, Kiuchi Z, Kudo A, Beltcheva O, Ito-Nitta N, Nitta KR, Kimura T, Suehiro JI, Katada T, Takematsu H, Yan K. Involvement of GLCCI1 in mouse spermatogenesis. FASEB J 2023; 37:e22680. [PMID: 36468710 DOI: 10.1096/fj.202101667rr] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Revised: 11/02/2022] [Accepted: 11/21/2022] [Indexed: 12/12/2022]
Abstract
Spermatid production is a complex regulatory process in which coordination between hormonal control and apoptosis plays a pivotal role in maintaining a balanced number of sperm cells. Apoptosis in spermatogenesis is controlled by pro-apoptotic and anti-apoptotic molecules. Hormones involved in the apoptotic process during spermatogenesis include gonadotrophins, sex hormones, and glucocorticoid (GC). GC acts broadly as an apoptosis inducer by binding to its receptor (glucocorticoid receptor: GR) during organ development processes, such as spermatogenesis. However, the downstream pathway induced in GC-GR signaling and the apoptotic process during spermatogenesis remains poorly understood. We reported previously that GC induces full-length glucocorticoid-induced transcript 1 (GLCCI1-long), which functions as an anti-apoptotic mediator in thymic T cell development. Here, we demonstrate that mature murine testis expresses a novel isoform of GLCCI1 protein (GLCCI1-short) in addition to GLCCI1-long. We demonstrate that GLCCI1-long is expressed in spermatocytes along with GR. In contrast, GLCCI1-short is primarily expressed in spermatids where GR is absent; instead, the estrogen receptor is expressed. GLCCI1-short also binds to LC8, which is a known mediator of the anti-apoptotic effect of GLCCI1-long. A luciferase reporter assay revealed that β-estradiol treatment synergistically increased Glcci1-short promotor-driven luciferase activity in Erα-overexpressing cells. Together with the evidence that the conversion of testosterone to estrogen is preceded by aromatase expression in spermatids, we hypothesize that estrogen induces GLCCI1-short, which, in turn, may function as a novel anti-apoptotic mediator in mature murine testis.
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Affiliation(s)
- Masaru Takada
- Department of Pediatrics, Kyorin University School of Medicine, Tokyo, Japan
| | - Daisuke Fukuhara
- Department of Pediatrics, Kyorin University School of Medicine, Tokyo, Japan
| | - Toshihiko Takiura
- Department of Pediatrics, Kyorin University School of Medicine, Tokyo, Japan
| | - Yukino Nishibori
- Department of Pediatrics, Kyorin University School of Medicine, Tokyo, Japan
| | - Masashi Kotani
- Department of Pediatrics, Kyorin University School of Medicine, Tokyo, Japan
| | - Zentaro Kiuchi
- Department of Pediatrics, Kyorin University School of Medicine, Tokyo, Japan
| | - Akihiko Kudo
- Department of Microscopic Anatomy, Kyorin University School of Medicine, Tokyo, Japan
| | - Olga Beltcheva
- Molecular Medicine Center and Department of Medical Chemistry and Biochemistry, Medical University of Sofia, Sofia, Bulgaria
| | - Noriko Ito-Nitta
- Department of Pediatrics, Kyorin University School of Medicine, Tokyo, Japan
| | - Kazuhiro R Nitta
- Diagnostics and Therapeutics of Intractable Diseases, Intractable Disease Research Center, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Toru Kimura
- Department of Toxicology and Pharmacology, Kyorin University School of Medicine, Tokyo, Japan
| | - Jun-Ichi Suehiro
- Department of Toxicology and Pharmacology, Kyorin University School of Medicine, Tokyo, Japan
| | - Tomohisa Katada
- Department of Toxicology and Pharmacology, Kyorin University School of Medicine, Tokyo, Japan
| | - Hiromu Takematsu
- Department of Molecular Cell Biology, Faculty of Medical Technology, Graduate School of Health Sciences, Fujita Health University, Toyoake, Japan
| | - Kunimasa Yan
- Department of Pediatrics, Kyorin University School of Medicine, Tokyo, Japan
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10
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Neonatal corticosterone administration increases p27-positive Sertoli cell number and decreases Sertoli cell number in the testes of mice at prepuberty. Sci Rep 2022; 12:19402. [PMID: 36371473 PMCID: PMC9653474 DOI: 10.1038/s41598-022-23695-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2022] [Accepted: 11/03/2022] [Indexed: 11/14/2022] Open
Abstract
Cortisol and corticosterone (CORT) are steroid, antistress hormones and one of the glucocorticoids in humans and animals, respectively. This study evaluated the effects of CORT administration on the male reproductive system in early life stages. CORT was subcutaneously injected at 0.36 (low-), 3.6 (middle-), and 36 (high-dosed) mg/kg body weight from postnatal day (PND) 1 to 10 in ICR mice. We observed a dose-dependent increase in serum CORT levels on PND 10, and serum testosterone levels were significantly increased only in high-dosed-CORT mice. Triiodothyronine levels were significantly higher in the low-dosed mice but lower in the middle- and high-dosed mice. However, testicular weights did not change significantly among the mice. Sertoli cell numbers were significantly reduced in low- and middle-dosed mice, whereas p27-positive Sertoli cell numbers increased in low- and middle-dosed mice. On PND 16, significant increases in testicular and relative testicular weights were observed in all-dosed-CORT mice. On PND 70, a significant decrease in testicular weight, Sertoli cell number, and spermatozoa count was observed. These results revealed that increased serum CORT levels in early life stages could induce p27 expression in Sertoli cells and terminate Sertoli cell proliferation, leading to decreased Sertoli cell number in mouse testes.
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11
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Du X, He X, Liu Q, Liu Q, Di R, Chu M. Identification of photoperiod-induced specific miRNAs in the adrenal glands of Sunite sheep (Ovis aries). Front Vet Sci 2022; 9:888207. [PMID: 35937294 PMCID: PMC9354845 DOI: 10.3389/fvets.2022.888207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Accepted: 07/05/2022] [Indexed: 11/18/2022] Open
Abstract
In seasonal estrus, it is well known that melatonin-regulated biorhythm plays a key role. Some studies indicate that the adrenal gland plays an important role in reproduction in mammals, but the molecular mechanism is not clear. This study used an artificially controlled light photoperiod model, combined with RNA-seq technology and bioinformatics analysis, to analyze the messenger RNA (mRNA) and microRNA (miRNA) of ewe (Sunite) adrenal glands under different photoperiod treatments. After identification, the key candidate genes GRHL2, CENPF, FGF16 and SLC25A30 that photoperiod affects reproduction were confirmed. The miRNAs (oar-miR-544-3p, oar-miR-411b-5p, oar-miR-376e-3p, oar-miR-376d, oar-miR-376b-3p, oar-miR-376a-3p) were specifically expressed in the adrenal gland. The candidate mRNA-miRNA pairs (e.g., SLC25A30 coagulated by novel miRNA554, novel miRNA555 and novel miRNA559) may affect seasonal estrus. In summary, we constructed relation network of the mRNAs and miRNAs of sheep adrenal glands using RNA sequencing and bioinformatics analysis, thereby, providing a valuable genetic variation resource for sheep genome research, which will contribute to the study of complex traits in sheep.
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Affiliation(s)
- Xiaolong Du
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Ministry of Agriculture and Rural Affairs, Institute of Animal Sciences of Chinese Academy of Agricultural Sciences, Beijing, China
| | - Xiaoyun He
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Ministry of Agriculture and Rural Affairs, Institute of Animal Sciences of Chinese Academy of Agricultural Sciences, Beijing, China
| | - Qingqing Liu
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, China
| | - Qiuyue Liu
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Ministry of Agriculture and Rural Affairs, Institute of Animal Sciences of Chinese Academy of Agricultural Sciences, Beijing, China
| | - Ran Di
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Ministry of Agriculture and Rural Affairs, Institute of Animal Sciences of Chinese Academy of Agricultural Sciences, Beijing, China
| | - Mingxing Chu
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Ministry of Agriculture and Rural Affairs, Institute of Animal Sciences of Chinese Academy of Agricultural Sciences, Beijing, China
- *Correspondence: Mingxing Chu
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12
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Phytomedicinal therapeutics for male infertility: critical insights and scientific updates. J Nat Med 2022; 76:546-573. [PMID: 35377028 DOI: 10.1007/s11418-022-01619-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Accepted: 03/11/2022] [Indexed: 10/18/2022]
Abstract
Infertility is a significant cause of anxiety, depression, and social stigma among couples and families. In such cases, male reproductive factors contribute widely to the extent of 20-70%. Male infertility is a multifactorial disease with several complications contributing to its diagnosis. Although its management encompasses both modern and traditional medicine arenas, the first line of treatment, adopted by most males, focuses on the reasonably successful medicinal plant-based conventional therapies. Phyto-therapeutics, which relies on active ingredients from traditionally known herbs, influences sexual behavior and male fertility factors. The potency of these phyto-actives depends on their preparation methods and forms of consumption, including decoctions, extracts, semi-purified compounds, etc., as inferred from in vitro and in vivo (laboratory animal models and human) studies. The mechanisms of action therein involve the testosterone pathway for stimulation of spermatogenesis, reduction of oxidative stress, inhibition of inflammation, activation of signaling pathways in the testes [extracellular-regulated kinase (ERK)/protein kinase B(PKB)/transformation of growth factor-beta 1(TGF-β1)/nuclear factor kappa-light-chain-enhancer of activated B cells NF-kB signaling pathways] and mediation of sexual behavior. This review critically focuses on the medicinal plants and their potent actives, along with the biochemical and molecular mechanisms that modulate vital pathways associated with the successful management of male infertility. Such intrinsic knowledge will significantly further studies on medicinal plants that improve male reproductive health.
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Greifová H, Jambor T, Tokárová K, Knížatová N, Lukáč N. In Vitro Effect of Resveratrol Supplementation on Oxidative Balance and Intercellular Communication of Leydig Cells Subjected to Induced Oxidative Stress. Folia Biol (Praha) 2022. [DOI: 10.3409/fb_70-1.03] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Many studies have revealed that oxidative stress is a primary factor in the pathogenesis of male reproductive system dysfunctions. The strong antioxidant and cytoprotective effects of resveratrol have previously been demonstrated, but its effect in the context of the male reproduction
remains unconvincing. To observe the biological activity of resveratrol in protecting the male reproductive function, hydrogen peroxide-induced oxidative stress in Leydig cells was used as a cell model. The aim of the present study was to examine if resveratrol could induce changes in the
gap junction intercellular communication (GJIC), nitric oxide production, total oxidant status (TOS) and total antioxidant capacity (TAC) in TM3 Leydig cells subjected to H2O2. The Leydig cells were exposed to a resveratrol treatment (5, 10, 20, 50 and 100 μM) in the
presence or absence of H2O2 (300/600 μM) during a 24 h in vitro culture. The cell lysates to assess TOS and TAC, NO production were quantified in a culture medium using the Griess method, and the Scrape Loading/Dye Transfer (SL/DT) technique was used for the
determination of GJIC in the exposed TM3 Leydig cells. Treatment with higher doses of resveratrol alone led to a significantly increased TOS (p<0.05 with 100 μM) and NO production (p<0.05 with 50 μM and 100 μM), but significantly reduced TAC (p<0.01 with 100 μM) and GJIC
(p<0.05 with 100 μM), while the SL/DT evaluation in the cells exposed to resveratrol at concentrations 5 μM (p<0.05) and 10 μM (p<0.01) revealed a significant stimulation of GJIC. The most potent cytoprotective or stimulatory effect of resveratrol in the cells co-exposed
to oxidative stress (300 μM H2O2) was observed at a concentration of 10 μM in the case of GJIC, which was manifested by a significant increase in the values (p<0.05) compared to the control group treated with H2O2 alone.
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Affiliation(s)
- Hana Greifová
- Department of Animal Physiology, Faculty of Biotechnology and Food Sciences, Slovak University of Agriculture in Nitra, Tr. A. Hlinku 2, 949 76 Nitra, Slovakia
| | - Tomáš Jambor
- BioFood Centre, Faculty of Biotechnology and Food Sciences, Slovak University of Agriculture in Nitra, Tr. A. Hlinku 2, 949 76 Nitra, Slovakia
| | - Katarína Tokárová
- Department of Animal Physiology, Faculty of Biotechnology and Food Sciences, Slovak University of Agriculture in Nitra, Tr. A. Hlinku 2, 949 76 Nitra, Slovakia
| | - Nikola Knížatová
- Department of Animal Physiology, Faculty of Biotechnology and Food Sciences, Slovak University of Agriculture in Nitra, Tr. A. Hlinku 2, 949 76 Nitra, Slovakia
| | - Norbert Lukáč
- Department of Animal Physiology, Faculty of Biotechnology and Food Sciences, Slovak University of Agriculture in Nitra, Tr. A. Hlinku 2, 949 76 Nitra, Slovakia
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14
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Carlitz EHD, Lindholm AK, Gao W, Kirschbaum C, König B. Steroid hormones in hair and fresh wounds reveal sex specific costs of reproductive engagement and reproductive success in wild house mice (Mus musculus domesticus). Horm Behav 2022; 138:105102. [PMID: 34998227 DOI: 10.1016/j.yhbeh.2021.105102] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/24/2021] [Revised: 10/19/2021] [Accepted: 12/12/2021] [Indexed: 11/30/2022]
Abstract
Not only males but also females compete over reproduction. In a population of free-living house mice (Mus musculus domesticus), we analyzed how (metabolic) costs of aggressive interactions (reflected in fresh wounds and long-term corticosterone concentrations in hair) are predicted by individual reproductive physiology and reproductive success in males and females. Over eight years, we studied wounds and reproduction of more than 2800 adults under naturally varying environmental conditions and analyzed steroid hormones from more than 1000 hair samples. Hair corticosterone were higher and wounds more frequent in males than females. In males, wound occurrence increased with increasing breeding activity in the population, without affecting hair corticosterone levels. Unexpectedly, individual male reproductive success did not predict wounds, while hair corticosterone increased with increasing levels of hair testosterone and reproductive success. High corticosterone in hair of males might therefore reflect metabolic costs of fighting over reproduction. In females, hair corticosterone was generally lower than in males and high levels did not impede pregnancy. Reproductive investment (reflected in hair progesterone) was dissociated from reproductive success. Occasional wounds in females indicated individuals without recent reproductive success and revealed reproductive competition, presumably driven by instability in the social environment. In both sexes, corticosterone increased with age, but there was no evidence that received overt aggression, as indicated by wounds or elevated corticosterone, suppressed reproductive physiology. Our results diverge from laboratory findings and emphasize the need to also study animals in their natural environment in order to understand the complexity of their behavioral physiology.
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Affiliation(s)
- Esther H D Carlitz
- Department of Psychology, Biological Psychology, Technical University of Dresden, Dresden, Germany.
| | - Anna K Lindholm
- Department of Evolutionary Biology and Environmental Studies, University of Zurich, Zurich, Switzerland
| | - Wei Gao
- Department of Psychology, Biological Psychology, Technical University of Dresden, Dresden, Germany
| | - Clemens Kirschbaum
- Department of Psychology, Biological Psychology, Technical University of Dresden, Dresden, Germany
| | - Barbara König
- Department of Evolutionary Biology and Environmental Studies, University of Zurich, Zurich, Switzerland
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Could Lower Testosterone in Older Men Explain Higher COVID-19 Morbidity and Mortalities? Int J Mol Sci 2022; 23:ijms23020935. [PMID: 35055119 PMCID: PMC8781054 DOI: 10.3390/ijms23020935] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 01/06/2022] [Accepted: 01/07/2022] [Indexed: 01/08/2023] Open
Abstract
The health scourge imposed on humanity by the COVID-19 pandemic seems not to recede. This fact warrants refined and novel ideas analyzing different aspects of the illness. One such aspect is related to the observation that most COVID-19 casualties were older males, a tendency also noticed in the epidemics of SARS-CoV in 2003 and the Middle East respiratory syndrome in 2012. This gender-related difference in the COVID-19 death toll might be directly involved with testosterone (TEST) and its plasmatic concentration in men. TEST has been demonstrated to provide men with anti-inflammatory and immunological advantages. As the plasmatic concentration of this androgen decreases with age, the health benefit it confers also diminishes. Low plasmatic levels of TEST can be determinant in the infection’s outcome and might be related to a dysfunctional cell Ca2+ homeostasis. Not only does TEST modulate the activity of diverse proteins that regulate cellular calcium concentrations, but these proteins have also been proven to be necessary for the replication of many viruses. Therefore, we discuss herein how TEST regulates different Ca2+-handling proteins in healthy tissues and propose how low TEST concentrations might facilitate the replication of the SARS-CoV-2 virus through the lack of modulation of the mechanisms that regulate intracellular Ca2+ concentrations.
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16
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Klaus Unsicker: in honor of his eightieth birthday. Cell Tissue Res 2022. [PMID: 34978592 PMCID: PMC8770380 DOI: 10.1007/s00441-021-03566-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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17
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Joung JY, Lim W, Seo YJ, Ham J, Oh NS, Kim SH. A Synbiotic Combination of Lactobacillus gasseri 505 and Cudrania tricuspidata Leaf Extract Prevents Stress-Induced Testicular Dysfunction in Mice. Front Endocrinol (Lausanne) 2022; 13:835033. [PMID: 35518925 PMCID: PMC9066698 DOI: 10.3389/fendo.2022.835033] [Citation(s) in RCA: 0] [Impact Index Per Article: 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: 01/07/2022] [Accepted: 02/28/2022] [Indexed: 12/02/2022] Open
Abstract
This study investigated the effects of a synbiotic combination (Syn) of Lactobacillus gasseri 505 (505) and Cudrania tricuspidata leaf extract (CT) on the hypothalamic-pituitary-gonadal axis in mice under chronic stress. Unpredictable chronic mild stress (UCMS) significantly increased the serum levels of corticosterone, however, treatment with Syn suppressed UCMS-induced increases. Histopathological analysis of the testes showed that these organs experienced some damage during UCMS, but this was repaired following treatment with Syn. Similarly, the transcription levels of gonadotropin-releasing hormone (GnRH), GnRH receptor, and gonadotropins, moreover, testicular development (i.e., Adam5, Adam29, and Spam1) - and steroidogenesis (i.e., Lhr, Egfr, and StAR) -related genes were significantly downregulated by UCMS. These UCMS-induced changes were inhibited by the administration of Syn, which was confirmed by the results of in situ hybridization analysis. These results suggest that the administration of Syn could attenuate the testicular dysfunctions induced by UCMS.
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Affiliation(s)
- Jae Yeon Joung
- Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul, South Korea
| | - Whasun Lim
- Department of Biological Sciences, Sungkyunkwan University, Suwon, South Korea
| | - Yeon Jeong Seo
- Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul, South Korea
| | - Jiyeon Ham
- Department of Biotechnology, Institute of Animal Molecular Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul, South Korea
| | - Nam Su Oh
- Department of Food and Biotechnology, Korea University, Sejong, South Korea
- *Correspondence: Nam Su Oh, ; Sae Hun Kim,
| | - Sae Hun Kim
- Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul, South Korea
- *Correspondence: Nam Su Oh, ; Sae Hun Kim,
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A Protein from Dioscorea polystachya (Chinese Yam) Improves Hydrocortisone-Induced Testicular Dysfunction by Alleviating Leydig Cell Injury via Upregulation of the Nrf2 Pathway. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:3575016. [PMID: 34887997 PMCID: PMC8651383 DOI: 10.1155/2021/3575016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Revised: 10/26/2021] [Accepted: 11/11/2021] [Indexed: 11/17/2022]
Abstract
Leydig cell injury has been described as a primary driver of testicular dysfunction and is affected by oxidative stress. Dioscorea polystachya (Chinese yam) is used to improve testicular dysfunction in clinical and pharmacological research via its antioxidative activity, but the mechanisms underlying the beneficial effect of Chinese yam on testicular dysfunction and its suppression of Leydig cell oxidative damage remain unclear. In this study, we obtained a Chinese yam protein (DP1) and explored its effectiveness and possible mechanism in improving testicular dysfunction in vivo and in vitro. We established a testicular dysfunction model in rats using hydrocortisone (HCT). DP1 increased body weight and organ index, improved the deterioration in testicular morphology (including increasing the diameter of seminiferous tubules and thickness of germinal cell layers, inhibiting testicular cell apoptosis by increasing the Bcl-2/Bax ratio, and impeding collagen leakage by downregulating TGF-β1 and p-SMAD2/3 expression), and restored the testosterone content. In addition, DP1 enhanced the number of Leydig cells in rats and H2O2-induced TM3 Leydig cells, and the effect of DP1 on the apoptosis, fibrosis, and testosterone content of TM3 cells was similar to that observed in vivo. These changes were dependent on the regulation of oxidative stress, including significantly reduced intracellular 8-hydroxy-2-deoxyguanosine levels, enhanced superoxide dismutase activities, and decreased superoxide anion levels, which were confirmed via a superoxide overexpression system. Furthermore, we observed that DP1 promoted Nrf2 nuclear import and upregulated antioxidant factor expression in vivo and in vitro. However, Nrf2 silencing eliminated the ability of DP1 to increase the Bcl-2/Bax ratio, reduce the expression levels of TGF-β1 and p-SMAD2/3, and increase testosterone contents in H2O2-induced TM3 cells. In conclusion, DP1 reversed the HCT-induced testicular apoptosis and fibrosis and decreased testosterone contents by alleviating Leydig cell oxidative damage via upregulation of the Nrf2 pathway.
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Mancha-Gutiérrez HM, Estrada-Camarena E, Mayagoitia-Novales L, López-Pacheco E, López-Rubalcava C. Chronic Social Defeat During Adolescence Induces Short- and Long-Term Behavioral and Neuroendocrine Effects in Male Swiss-Webster Mice. Front Behav Neurosci 2021; 15:734054. [PMID: 34658806 PMCID: PMC8514669 DOI: 10.3389/fnbeh.2021.734054] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Accepted: 09/03/2021] [Indexed: 12/15/2022] Open
Abstract
Chronic stress exposure during adolescence is a significant risk factor for the development of depression. Chronic social defeat (CSD) in rodents is an animal model of depression with excellent ethological, predictive, discriminative, and face validity. Because the CSD model has not been thoroughly examined as a model of stress-induced depression within the adolescence stage, the present study analyzed the short- and long-term behavioral and neuroendocrine effects of CSD during early adolescence. Therefore, adolescent male Swiss-Webster (SW) mice were exposed to the CSD model from postnatal day (PND) 28 to PND37. Twenty-four hours (mid-adolescence) or 4 weeks (early adulthood) later, mice were tested in two models of depression; the social interaction test (SIT) and forced swimming test (FST); cognitive deficits were evaluated in the Barnes maze (BM). Finally, corticosterone and testosterone content was measured before, during, and after CSD exposure, and serotonin transporter (SERT) autoradiography was studied after CSD in adolescent and adult mice. CSD during early adolescence induced enduring depression-like behaviors as inferred from increased social avoidance and immobility behavior in the SIT and FST, respectively, which correlated in an age-dependent manner with SERT binding in the hippocampus; CSD during early adolescence also induced long-lasting learning and memory impairments in the Barnes maze (BM). Finally, CSD during early adolescence increased serum corticosterone levels in mid-adolescence and early adulthood and delayed the expected increase in serum testosterone levels observed at this age. In conclusion: (1) CSD during early adolescence induced long-lasting depression-like behaviors, (2) sensitivity of SERT density during normal brain development was revealed, (3) CSD during early adolescence induced enduring cognitive deficits, and (4) results highlight the vulnerability of the adolescent brain to social stressors on the adrenal and gonadal axes, which emphasizes the importance of an adequate interaction between both axes during adolescence for normal development of brain and behavior.
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Affiliation(s)
| | - Erika Estrada-Camarena
- Laboratorio de Neuropsicofarmacología, Dirección de Neurociencias, Instituto Nacional de Psiquiatría Ramón de la Fuente Muñiz, Mexico City, Mexico
| | - Lilian Mayagoitia-Novales
- Departamento de Etologia, Dirección de Neurociencias, Instituto Nacional de Psiquiatría Ramón de la Fuente Muñiz, Mexico City, Mexico
| | - Elena López-Pacheco
- Departamento de Farmacobiología, CINVESTAV-Sede Sur Coapa, Mexico City, Mexico
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20
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Çiftci G, Tuna E. Effects of cholesterol and Lactobacillus acidophilus on testicular function. Clin Exp Reprod Med 2021; 48:229-235. [PMID: 34488287 PMCID: PMC8421657 DOI: 10.5653/cerm.2020.04322] [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: 12/12/2020] [Accepted: 05/17/2021] [Indexed: 12/30/2022] Open
Abstract
Objective In this study, the effects of Lactobacillus acidophilus on testosterone (TES), follicle-stimulating hormone (FSH), luteinizing hormone (LH), androgen-binding protein (ABP), factor-associated apoptosis (FAS), and total cholesterol (TC), as well as histopathological changes, were investigated in male rats fed a high-cholesterol diet. Methods The study included three groups. The control (C) group was fed standard-diet for 8 weeks. The hypercholesterolemia (HC) group was fed a 2% cholesterol-diet for 8 weeks. The therapeutic group (HCL) was fed a 2% cholesterol-diet for 8 weeks and administered L. acidophilus for the last 4 weeks. FSH, TES, and FAS levels in testicular tissue were determined using an enzyme-linked immunosorbent assay (ELISA), while another sample was examined histopathologically. LH and ABP levels were determined using ELISA, and serum TC levels were assessed via an autoanalyzer. Results In the HC group, the TC levels were significantly higher and the LH levels were lower (p<0.05) than in the C group. The ABP levels were lower (p>0.05). In the HCL group, the LH and ABP levels were higher (p>0.05) and the TC level significantly lower (p<0.05) than in the HC group. The TES and FSH levels were lower, and the FAS levels were higher, in the HC than in the C group (p<0.05). In the HCL group, levels of all three resembled control levels. Histologically, in the testicular tissue of the HC group, the cells in the tubular wall exhibited atrophy, vacuolization, and reduced wall structure integrity. However, in the HCL group, these deteriorations were largely reversed. Conclusion Supplementary dietary administration of an L. acidophilus to hypercholesterolemic male rats positively impacted testicular tissue and male fertility hormone levels.
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Affiliation(s)
- Gülay Çiftci
- Department of Biochemistry, Faculty of Veterinary Medicine, University of Ondokuz Mayis, Samsun, Turkey
| | - Elif Tuna
- Department of Biochemistry, Faculty of Veterinary Medicine, University of Ondokuz Mayis, Samsun, Turkey
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21
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Bundschuh J, Schneider J, Alam MA, Niazi NK, Herath I, Parvez F, Tomaszewska B, Guilherme LRG, Maity JP, López DL, Cirelli AF, Pérez-Carrera A, Morales-Simfors N, Alarcón-Herrera MT, Baisch P, Mohan D, Mukherjee A. Seven potential sources of arsenic pollution in Latin America and their environmental and health impacts. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 780:146274. [PMID: 34030289 DOI: 10.1016/j.scitotenv.2021.146274] [Citation(s) in RCA: 47] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Revised: 02/25/2021] [Accepted: 02/28/2021] [Indexed: 06/12/2023]
Abstract
This review presents a holistic overview of the occurrence, mobilization, and pathways of arsenic (As) from predominantly geogenic sources into different near-surface environmental compartments, together with the respective reported or potential impacts on human health in Latin America. The main sources and pathways of As pollution in this region include: (i) volcanism and geothermalism: (a) volcanic rocks, fluids (e.g., gases) and ash, including large-scale transport of the latter through different mechanisms, (b) geothermal fluids and their exploitation; (ii) natural lixiviation and accelerated mobilization from (mostly sulfidic) metal ore deposits by mining and related activities; (iii) coal deposits and their exploitation; (iv) hydrocarbon reservoirs and co-produced water during exploitation; (v) solute and sediment transport through rivers to the sea; (vi) atmospheric As (dust and aerosol); and (vii) As exposure through geophagy and involuntary ingestion. The two most important and well-recognized sources and mechanisms for As release into the Latin American population's environments are: (i) volcanism and geothermalism, and (ii) strongly accelerated As release from geogenic sources by mining and related activities. Several new analyses from As-endemic areas of Latin America emphasize that As-related mortality and morbidity continue to rise even after decadal efforts towards lowering As exposure. Several public health regulatory institutions have classified As and its compounds as carcinogenic chemicals, as As uptake can affect several organ systems, viz. dermal, gastrointestinal, peptic, neurological, respiratory, reproductive, following exposure. Accordingly, ingesting large amounts of As can damage the stomach, kidneys, liver, heart, and nervous system; and, in severe cases, may cause death. Moreover, breathing air with high As levels can cause lung damage, shortness of breath, chest pain, and cough. Further, As compounds, being corrosive, can also cause skin lesions or damage eyes, and long-term exposure to As can lead to cancer development in several organs.
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Affiliation(s)
- Jochen Bundschuh
- UNESCO Chair on Groundwater Arsenic within the 2030 Agenda for Sustainable Development, University of Southern Queensland, West Street, Toowoomba 4350, Queensland, Australia.
| | - Jerusa Schneider
- Department of Geology and Natural Resources, Institute of Geosciences, University of Campinas, 13083-855 Campinas, SP, Brazil; Faculty of Agricultural Sciences, Federal University of Grande Dourados, João Rosa Góes St., 1761, Dourados, Mato Grosso do Sul, 79804-970, Brazil
| | - Mohammad Ayaz Alam
- Departamento de Geología, Facultad de Ingeniería, Universidad de Atacama, Avenida Copayapu 485, Copiapó, Región de Atacama, Chile
| | - Nabeel Khan Niazi
- Institute of Soil and Environmental Sciences, University of Agriculture Faisalabad, Faisalabad 38040, Pakistan
| | - Indika Herath
- UNESCO Chair on Groundwater Arsenic within the 2030 Agenda for Sustainable Development, University of Southern Queensland, West Street, Toowoomba 4350, Queensland, Australia
| | - Faruque Parvez
- Department of Environmental Health Sciences, Columbia University, 60 Haven Ave, B-1, New York, NY 10032, USA
| | - Barbara Tomaszewska
- AGH University of Science and Technology, Mickiewicza 30 Av., 30-059 Kraków, Poland
| | | | - Jyoti Prakash Maity
- Department of Earth and Environmental Sciences, National Chung Cheng University, 168 University Road, Min-Hsiung, Chiayi County 62102, Taiwan
| | - Dina L López
- Department of Geological Sciences, Ohio University, 316 Clippinger Laboratories, Athens, OH, USA
| | - Alicia Fernández Cirelli
- University of Buenos Aires, Faculty of Veterinary Sciences, Instituto de Investigaciones en Producción Animal (UBA-CONICET), Centro de Estudios, Transdiciplinarios del Agua (UBA), Av. Chorroarín 280, CABA C1427CWO, Argentina
| | - Alejo Pérez-Carrera
- University of Buenos Aires, Faculty of Veterinary Sciences, Centro de Estudios Transdiciplinarios del Agua (UBA), Instituto de Investigaciones en Producción Animal (UBA-CONICET), Cátedra de Química Orgánica de Biomoléculas, Av. Chorroarín 280, CABA C1427CWO, Argentina
| | - Nury Morales-Simfors
- UNESCO Chair on Groundwater Arsenic within the 2030 Agenda for Sustainable Development, University of Southern Queensland, West Street, Toowoomba 4350, Queensland, Australia; RISE Research Institutes of Sweden, Division ICT-RISE SICS East, Linköping SE-581.83, Sweden
| | - Maria Teresa Alarcón-Herrera
- Departamento de Ingeniería Sustentable, Centro de Investigación en Materiales Avanzados SC Unidad Durango, C. CIMAV # 110, Ejido Arroyo Seco, Durango, Dgo., Mexico
| | - Paulo Baisch
- Laboratório de Oceanografia Geológica, Instituto de Oceanografia, Universidade Federal do Rio Grande (FURG), Campus Carreiros, CP 474, CEP 96203-900 Rio Grande, RS, Brazil
| | - Dinesh Mohan
- UNESCO Chair on Groundwater Arsenic within the 2030 Agenda for Sustainable Development, University of Southern Queensland, West Street, Toowoomba 4350, Queensland, Australia; School of Environmental Sciences, Jawaharlal Nehru University, New Delhi 110067, India
| | - Abhijit Mukherjee
- Department of Geology and Geophysics, Indian Institute of Technology (IIT), Kharagpur, West Bengal 721302, India
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22
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Wolf TE, De Haast AR, Meyer L, Gerber D, Ganswindt A. Measuring Faecal Glucocorticoid Metabolite Concentrations as an Indicator of Stress in Blue Wildebeest (Connochaetes taurinus). AFRICAN JOURNAL OF WILDLIFE RESEARCH 2021. [DOI: 10.3957/056.051.0090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Affiliation(s)
- Tanja E. Wolf
- Mammal Research Institute, Faculty of Natural and Agricultural Sciences, University of Pretoria, Pretoria, 0028 South Africa
| | - Adel R. De Haast
- Department of Paraclinical Sciences, Faculty of Veterinary Science, University of Pretoria, Onderstepoort, 0110 South Africa
| | - Leith Meyer
- Mammal Research Institute, Faculty of Natural and Agricultural Sciences, University of Pretoria, Pretoria, 0028 South Africa
| | - David Gerber
- V-Tech (Pty) Ltd, Corner Old Pretoria and Douglas Roads, Midrand, 0182 South Africa
| | - Andre Ganswindt
- Mammal Research Institute, Faculty of Natural and Agricultural Sciences, University of Pretoria, Pretoria, 0028 South Africa
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23
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Ren L, Zhang Y, Xin Y, Chen G, Sun X, Chen Y, He B. Dysfunction in Sertoli cells participates in glucocorticoid-induced impairment of spermatogenesis. Mol Reprod Dev 2021; 88:405-415. [PMID: 34032349 DOI: 10.1002/mrd.23515] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Revised: 04/16/2021] [Accepted: 05/11/2021] [Indexed: 12/31/2022]
Abstract
The effect of stress on male fertility is a widespread public health issue, but less is known about the related signaling pathway. To investigate this, we established a hypercortisolism mouse model by supplementing the drinking water with corticosterone for four weeks. In the hypercortisolism mice, the serum corticosterone was much higher than in the control, and serum testosterone was significantly decreased. Moreover, corticosterone treatment induced decrease of sperm counts and increase of teratozoospermia. Increased numbers of multinucleated giant cells and apoptotic germ cells as well as downregulated meiotic markers suggested that corticosterone induced impaired spermatogenesis. Further, upregulation of macrophage-specific marker antigen F4/80 as well as inflammation-related genes suggested that corticosterone induced inflammation in the testis. Lactate content was found to be decreased in the testis and Sertoli cells after corticosterone treatment, and lactate metabolism-related genes were downregulated. In vitro phagocytosis assays showed that the phagocytic activity in corticosterone-treated Sertoli cells was downregulated and accompanied by decreased mitochondrial membrane potential, while pyruvate dehydrogenase kinase-4 inhibitor supplementation restored this process. Taken together, our results demonstrated that dysfunctional phagocytosis capacity and lactate metabolism in Sertoli cells participates in corticosterone-induced impairment of spermatogenesis.
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Affiliation(s)
- Li Ren
- Key Laboratory of Animal Physiology & Biochemistry, Ministry of Agriculture and Rural Affairs, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Yanwen Zhang
- Key Laboratory of Animal Physiology & Biochemistry, Ministry of Agriculture and Rural Affairs, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Yining Xin
- Key Laboratory of Animal Physiology & Biochemistry, Ministry of Agriculture and Rural Affairs, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Guo Chen
- Key Laboratory of Animal Physiology & Biochemistry, Ministry of Agriculture and Rural Affairs, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Xiaoxiao Sun
- Key Laboratory of Animal Physiology & Biochemistry, Ministry of Agriculture and Rural Affairs, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Yingqi Chen
- Key Laboratory of Animal Physiology & Biochemistry, Ministry of Agriculture and Rural Affairs, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Bin He
- Key Laboratory of Animal Physiology & Biochemistry, Ministry of Agriculture and Rural Affairs, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
- MOE Joint International Research Laboratory of Animal Health & Food Safety, Nanjing Agricultural University, Nanjing, China
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24
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Yu Z, Liu H, Li D, Chen X, Ao M, Jin W, Yu L. N-(3-Methozybenzyl)-(9 Z,12 Z,15 Z)-octadecatrienamide from maca ( Lepidium meyenii Walp.) ameliorates corticosterone-induced testicular toxicity in rats. Food Funct 2021; 11:7762-7774. [PMID: 32797129 DOI: 10.1039/d0fo00890g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
This study investigated the protective effects of maca ethanol extract (EEM) and N-(3-methozybenzyl)-(9Z,12Z,15Z)-octadecatrienamide (M 18:3) on corticosterone (CORT)-induced testicular toxicity. Male Wistar rats were divided into 5 groups. Except for the control group, CORT (40 mg per kg·bw) was injected subcutaneously for 21 consecutive days to induce testicular toxicity. 1 h before CORT injection, the rats were treated with EEM (400 mg per kg·bw) and M 18:3 (5 mg per kg·bw, 25 mg per kg·bw) by gavage, except for the control group and model group. Epididymal sperm and biochemical, and histological parameters were evaluated for the protective effects of the drugs. EEM (400 mg per kg·bw) and M 18:3 (5 mg per kg·bw, 25 mg per kg·bw) increased the sperm concentration and sperm motility, decreased the production of abnormal sperms, and increased the number of spermatogonia and primary spermatocytes in the seminiferous tubules of CORT-induced rats. Moreover, EEM and M 18:3 decreased the MDA levels and the positive expression rates of TUNEL, whereas they increased the activities of SOD, CAT, GSH-Px, and GST, and the contents of GSH in the testicles of CORT-induced rats. Furthermore, EEM and M 18:3 alleviated CORT-induced reduction in the positive expression rates of PCNA and Ki67 in the testicles of rats. Besides, EEM and M 18:3 reduced the expression levels of Keap-1 and increased the expression levels of Nrf2, HO-1, γ-GCS, and NQO1 in the testicles of CORT-induced rats. In summary, the protective effects of EEM and M 18:3 may be attributed to their anti-oxidative and anti-apoptotic properties.
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Affiliation(s)
- Zejun Yu
- Institute of Resource Biology and Biotechnology, Department of Biotechnology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China. and Key Laboratory of Molecular Biophysics, Ministry of Education, Wuhan, 430074, China
| | - Hao Liu
- Institute of Resource Biology and Biotechnology, Department of Biotechnology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China. and Key Laboratory of Molecular Biophysics, Ministry of Education, Wuhan, 430074, China
| | - Dong Li
- Institute of Resource Biology and Biotechnology, Department of Biotechnology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China. and Key Laboratory of Molecular Biophysics, Ministry of Education, Wuhan, 430074, China
| | - Xuemin Chen
- Institute of Resource Biology and Biotechnology, Department of Biotechnology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China. and Key Laboratory of Molecular Biophysics, Ministry of Education, Wuhan, 430074, China
| | - Mingzhang Ao
- Institute of Resource Biology and Biotechnology, Department of Biotechnology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China. and Key Laboratory of Molecular Biophysics, Ministry of Education, Wuhan, 430074, China
| | - Wenwen Jin
- Institute of Resource Biology and Biotechnology, Department of Biotechnology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China. and Key Laboratory of Molecular Biophysics, Ministry of Education, Wuhan, 430074, China
| | - Longjiang Yu
- Institute of Resource Biology and Biotechnology, Department of Biotechnology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China. and Key Laboratory of Molecular Biophysics, Ministry of Education, Wuhan, 430074, China
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Dinter K, Heistermann M, Kappeler P, Fichtel C. Life on the edge: behavioural and physiological responses of Verreaux's sifakas ( Propithecus verreauxi) to forest edges. Primate Biol 2021; 8:1-13. [PMID: 34084892 PMCID: PMC8129909 DOI: 10.5194/pb-8-1-2021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Accepted: 12/16/2020] [Indexed: 12/25/2022] Open
Abstract
Forest edges change micro-environmental conditions, thereby affecting the ecology of many forest-dwelling species. Understanding such edge effects is particularly important for Malagasy primates because many of them live in highly fragmented forests today. The aim of our study was to assess the influence of forest edge effects on activity budgets, feeding ecology, and stress hormone output (measured as faecal glucocorticoid metabolite - fGCM - levels) in wild Verreaux's sifakas (Propithecus verreauxi), a group living, arboreal lemur. We observed five habituated groups: three living in the forest interior and two at an established forest edge. There was no difference in average daily temperatures between edge and interior habitats; however, within the edge site, the average daily temperature incrementally increased over 450 m from the forest edge towards the interior forest of the edge habitat, and the population density was lower at the edge site. Activity budgets differed between groups living in the two microhabitats, with individuals living near the edge spending more time travelling and less time feeding. Groups living near the edge also tended to have smaller home ranges and core areas than groups in the forest interior. In addition, edge groups had elevated average fGCM concentrations, and birth rates were lower for females living in the edge habitat. Combined with lower levels of fruit consumption at the edge, these results suggest that nutritional stress might be a limiting factor for Verreaux's sifakas when living near a forest edge. Hence, Verreaux's sifakas appear to be sensitive to microhabitat characteristics linked to forest edges; a result with implications for the conservation of this critically endangered lemurid species.
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Affiliation(s)
- Klara Dinter
- Behavioral Ecology and Sociobiology Unit, German Primate Center,
Kellnerweg 4, 37077 Göttingen, Germany
| | - Michael Heistermann
- Endocrinology Laboratory, German Primate Center, Kellnerweg 4, 37077
Göttingen, Germany
| | - Peter M. Kappeler
- Behavioral Ecology and Sociobiology Unit, German Primate Center,
Kellnerweg 4, 37077 Göttingen, Germany
- Department of Sociobiology and Anthropology,
Johann-Friedrich-Blumenbach Institute for Zoology and Anthropology,
Georg-August University, Kellnerweg 6, 37077 Göttingen, Germany
| | - Claudia Fichtel
- Behavioral Ecology and Sociobiology Unit, German Primate Center,
Kellnerweg 4, 37077 Göttingen, Germany
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26
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Gualdoni GS, Jacobo PV, Sobarzo CM, Pérez CV, Durand LAH, Theas MS, Lustig L, Guazzone VA. Relevance of angiogenesis in autoimmune testis inflammation. Mol Hum Reprod 2021; 27:gaaa073. [PMID: 33313783 DOI: 10.1093/molehr/gaaa073] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Revised: 10/01/2020] [Indexed: 12/27/2022] Open
Abstract
Experimental autoimmune orchitis (EAO) is a useful model to study organ-specific autoimmunity and chronic testicular inflammation. This model reflects testicular pathological changes reported in immunological infertility in men. Progression of EAO in rodents is associated with a significantly increased percentage of testicular endothelial cells and interstitial testicular blood vessels, indicating an ongoing angiogenic process. Vascular endothelial growth factor A (VEGFA), the main regulator of physiological and pathological angiogenesis, can stimulate endothelial cell proliferation, chemotaxis and vascular permeability. The aim of this study was to explore the role of VEGFA in the pathogenesis of testicular inflammation. Our results found VEGFA expression in Leydig cells, endothelial cells and macrophages in testis of rats with autoimmune orchitis. VEGFA level was significantly higher in testicular fluid and serum of rats at the end of the immunization period, preceding testicular damage. VEGF receptor (VEGFR) 1 is expressed mainly in testicular endothelial cells, whereas VEGFR2 was detected in germ cells and vascular smooth muscle cells. Both receptors were expressed in testicular interstitial cells. VEGFR2 increased after the immunization period in the testicular interstitium and VEGFR1 was downregulated in EAO testis. In-vivo-specific VEGFA inhibition by Bevacizumab prevented the increase in blood vessel number and reduced EAO incidence and severity. Our results unveil relevance of VEGFA-VEGFR axis during orchitis development, suggesting that VEGFA might be an early marker of testicular inflammation and Bevacizumab a therapeutic tool for treatment of testicular inflammation associated with subfertility and infertility.
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Affiliation(s)
- Gisela Soledad Gualdoni
- Departamento de Biología Celular e Histología/Unidad Académica II, Facultad de Medicina, Universidad de Buenos Aires (UBA), Ciudad Autónoma de Buenos Aires C1121ABG, Argentina
- Instituto de Investigaciones Biomédicas (INBIOMED), Facultad de Medicina, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad de Buenos Aires (UBA), Ciudad Autónoma de Buenos Aires C1121ABG, Argentina
| | - Patricia Verónica Jacobo
- Departamento de Biología Celular e Histología/Unidad Académica II, Facultad de Medicina, Universidad de Buenos Aires (UBA), Ciudad Autónoma de Buenos Aires C1121ABG, Argentina
- Instituto de Investigaciones Biomédicas (INBIOMED), Facultad de Medicina, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad de Buenos Aires (UBA), Ciudad Autónoma de Buenos Aires C1121ABG, Argentina
| | - Cristian Marcelo Sobarzo
- Departamento de Biología Celular e Histología/Unidad Académica II, Facultad de Medicina, Universidad de Buenos Aires (UBA), Ciudad Autónoma de Buenos Aires C1121ABG, Argentina
- Instituto de Investigaciones Biomédicas (INBIOMED), Facultad de Medicina, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad de Buenos Aires (UBA), Ciudad Autónoma de Buenos Aires C1121ABG, Argentina
| | - Cecilia Valeria Pérez
- Instituto de Investigaciones Biomédicas (INBIOMED), Facultad de Medicina, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad de Buenos Aires (UBA), Ciudad Autónoma de Buenos Aires C1121ABG, Argentina
| | - Luis Alberto Haro Durand
- Instituto de Biología y Medicina Experimental (IBYME), CONICET, Ciudad Autónoma de Buenos Aires C1428ADN, Argentina
| | - María Susana Theas
- Departamento de Biología Celular e Histología/Unidad Académica II, Facultad de Medicina, Universidad de Buenos Aires (UBA), Ciudad Autónoma de Buenos Aires C1121ABG, Argentina
- Instituto de Investigaciones Biomédicas (INBIOMED), Facultad de Medicina, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad de Buenos Aires (UBA), Ciudad Autónoma de Buenos Aires C1121ABG, Argentina
| | - Livia Lustig
- Departamento de Biología Celular e Histología/Unidad Académica II, Facultad de Medicina, Universidad de Buenos Aires (UBA), Ciudad Autónoma de Buenos Aires C1121ABG, Argentina
- Instituto de Investigaciones Biomédicas (INBIOMED), Facultad de Medicina, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad de Buenos Aires (UBA), Ciudad Autónoma de Buenos Aires C1121ABG, Argentina
| | - Vanesa Anabella Guazzone
- Departamento de Biología Celular e Histología/Unidad Académica II, Facultad de Medicina, Universidad de Buenos Aires (UBA), Ciudad Autónoma de Buenos Aires C1121ABG, Argentina
- Instituto de Investigaciones Biomédicas (INBIOMED), Facultad de Medicina, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad de Buenos Aires (UBA), Ciudad Autónoma de Buenos Aires C1121ABG, Argentina
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27
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Chai Z, Zhao C, Jin Y, Wang Y, Zou P, Ling X, Yang H, Zhou N, Chen Q, Sun L, Chen W, Ao L, Cao J, Liu J. Generating adverse outcome pathway (AOP) of inorganic arsenic-induced adult male reproductive impairment via integration of phenotypic analysis in comparative toxicogenomics database (CTD) and AOP wiki. Toxicol Appl Pharmacol 2020; 411:115370. [PMID: 33338516 DOI: 10.1016/j.taap.2020.115370] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2020] [Revised: 11/22/2020] [Accepted: 12/08/2020] [Indexed: 02/06/2023]
Abstract
BACKGROUND Inorganic arsenic (iAs) is a worldwide environmental pollutant which exerts complicated and various toxic effects in organisms. Increasingly epidemic studies have revealed the association between iAs exposure and adult male reproductive impairment. Consistent with the proposal for toxicity testing in the 21st century (TT21C), the adverse outcome pathway (AOP) framework may help unravel the iAs-caused molecular and functional changes leading to male reproductive impairment. METHOD Combining CTD's phenotype-disease inference data, iAs-phenotypes were anchored to five male reproductive diseases induced by iAs, and local network topological algorithm was applied in prioritizing their interference significance. Through integrating analysis in AOP Wiki knowledge base, filtered phenotypes were linked to key events consisting of AOPs and assembled together based on evidentially upstream and downstream relationships. RESULTS A subset of 655 phenotypes were filtered from CTD as potential key events and showed a significant coherence in five reproductive diseases wherein 39 significant phenotypes showed a good clustering features involving cell cycle, ROS and mitochondria function. Two AOP subnetworks were enriched in AOP Wiki where testosterone reduction and apoptosis of sperm served as focus events respectively. Besides, a candidates list of molecular initialing events was provided of which glucocorticoid receptor activation was overall assessed as an example. CONCLUSION This study applied computational and bioinformatics methods in generating AOPs for arsenic reproductive toxicity, which identified the imperative roles of testosterone reduction, response to ROS, spermatogenesis and provided a global view about their internal association. Furthermore, this study helped address the existing knowledge gaps for future experimental verification.
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Affiliation(s)
- Zili Chai
- Key Lab of Medical Protection for Electromagnetic Radiation, Ministry of Education of China, Institute of Toxicology, College of Preventive Medicine, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Chenhao Zhao
- Information and Navigation College, Air Force Engineering University, Xi'an 710077, China
| | - Yuan Jin
- School of Public Health, Qingdao University, Qingdao 266000, China
| | - Yimeng Wang
- Key Lab of Medical Protection for Electromagnetic Radiation, Ministry of Education of China, Institute of Toxicology, College of Preventive Medicine, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Peng Zou
- Key Lab of Medical Protection for Electromagnetic Radiation, Ministry of Education of China, Institute of Toxicology, College of Preventive Medicine, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Xi Ling
- Key Lab of Medical Protection for Electromagnetic Radiation, Ministry of Education of China, Institute of Toxicology, College of Preventive Medicine, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Huan Yang
- Key Lab of Medical Protection for Electromagnetic Radiation, Ministry of Education of China, Institute of Toxicology, College of Preventive Medicine, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Niya Zhou
- Key Lab of Medical Protection for Electromagnetic Radiation, Ministry of Education of China, Institute of Toxicology, College of Preventive Medicine, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Qing Chen
- Key Lab of Medical Protection for Electromagnetic Radiation, Ministry of Education of China, Institute of Toxicology, College of Preventive Medicine, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Lei Sun
- Key Lab of Medical Protection for Electromagnetic Radiation, Ministry of Education of China, Institute of Toxicology, College of Preventive Medicine, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Wen Chen
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Lin Ao
- Key Lab of Medical Protection for Electromagnetic Radiation, Ministry of Education of China, Institute of Toxicology, College of Preventive Medicine, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Jia Cao
- Key Lab of Medical Protection for Electromagnetic Radiation, Ministry of Education of China, Institute of Toxicology, College of Preventive Medicine, Third Military Medical University (Army Medical University), Chongqing 400038, China.
| | - Jinyi Liu
- Key Lab of Medical Protection for Electromagnetic Radiation, Ministry of Education of China, Institute of Toxicology, College of Preventive Medicine, Third Military Medical University (Army Medical University), Chongqing 400038, China.
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28
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Joung JY, Lee JS, Oh NS, Kim SH. Fermented Maillard reaction products attenuate stress-induced testicular dysfunction in mice. J Dairy Sci 2020; 104:1384-1393. [PMID: 33272581 DOI: 10.3168/jds.2020-18996] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Accepted: 08/30/2020] [Indexed: 12/13/2022]
Abstract
Chronic stress can cause psychological diseases and affect male fertility and the reproductive system. Maillard reaction of milk proteins improves their functional and nutritional properties through modification of proteins. Previously, we determined that Maillard reaction product (MRP) from milk casein and MRP fermented (FMRP) with Lactobacillus rhamnosus 4B15 (4B15) had anti-anxiolytic effects in mice under chronic stress. Therefore, we aimed to investigate the effects of MRP and FMRP on chronic stress-induced testicular dysfunction in mice through quantitative real-time PCR (qRT-PCR) and in situ hybridization analysis. Mice were pretreated with MRP and FMRP for 10 wk; simultaneously, from the third week of the experimental period, they were exposed to unpredictable chronic mild stress (UCMS) for 7 wk. The expression levels of the luteinizing hormone subunit β (Lhb) and follicle-stimulating hormone subunit β (Fshb) were remarkably reduced after exposure to UCMS. However, treatment with MRP and FMRP inhibited the UCMS-induced reduction, with FMRP showing especially significant inhibition. Moreover, the expression of steroidogenesis-related genes [luteinizing hormone receptor (Lhr), follicle-stimulating hormone (Fshr), 3-β hydroxysteroid dehydrogenase 2 (Hsd3b2), and steroidogenic acute regulatory protein (StAR)] were significantly reduced in response to UCMS. In contrast, the transcript levels of these genes were highest in the MRP-treated mice. Mice pretreated with FMRP also exhibited higher levels of gene expression compared with the nonstressed mice. Moreover, UCMS significantly downregulated the expression of genes associated with testicular function [i.e., a disintegrin and metallopeptidase domain 5 (Adam5), Adam29, bone morphogenetic protein 2 (Bmp2), tektin 3 (Tekt3), and sperm adhesion molecule 1 (Spam1)]. However, the administration of MRP and FMRP prevented the UCMS-induced reduction in the expressions of above genes. The localization of Lhr, Srd5a2, Adam29, and Spam1 was confirmed by in situ hybridization analysis and the results were consistent with those of qRT-PCR. Consequently, these results indicated that MRP and FMRP, manufactured by the heat treatment of milk casein and fermentation with probiotic 4B15, have the potential to prevent chronic stress-induced testicular dysfunction.
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Affiliation(s)
- Jae Yeon Joung
- Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul, 02841, Korea
| | - Ji Sun Lee
- Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul, 02841, Korea
| | - Nam Su Oh
- Department of Food and Biotechnology, Korea University, Sejong 30019, Korea.
| | - Sae Hun Kim
- Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul, 02841, Korea.
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29
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Pillay N, Rymer TL. Sons benefit from paternal care in African striped mice. Dev Psychobiol 2020; 63:662-675. [PMID: 33098084 DOI: 10.1002/dev.22050] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2020] [Revised: 09/27/2020] [Accepted: 10/01/2020] [Indexed: 12/26/2022]
Abstract
Mammalian paternal care is rare and is often linked to enhanced fitness under particular ecological conditions. The proximate consequences of paternal care on offspring are lacking, however. Here, we tested whether levels of paternal care predict the behavioural, cognitive and physiological development of sons in the naturally paternal African striped mouse (Rhabdomys pumilio). We focused on sons raised in two treatments: biparental (both parents) or uniparental (mother alone) families. We recorded levels of interactions between pups with both parents, and later assessed the behaviour, cognition and physiology of sons at three developmental stages: juvenile, sub-adult and adult (sexual maturity). Sons from biparental families showed (a) reduced anxiety as juveniles; (b) greater exploration and social interaction at different stages; (c) better cognition; and (d) reduced corticosterone concentrations than sons from uniparental families. In contrast, sons from uniparental families showed greater levels of paternal care, although prolactin concentrations did not differ between treatments. Paternal care in striped mice enhances fitness of males. Here, we also show that sons benefit psychologically and physiologically through interactions with their fathers. However, sons also trade-off such benefits against their own paternal care behaviour, suggesting that fathers influence the development of their son's phenotype in complex ways.
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Affiliation(s)
- Neville Pillay
- School of Animal, Plant and Environmental Science, University of the Witwatersrand, Johannesburg, South Africa
| | - Tasmin L Rymer
- School of Animal, Plant and Environmental Science, University of the Witwatersrand, Johannesburg, South Africa.,College of Science and Engineering, James Cook University, Cairns, QLD, Australia.,Centre for Tropical Environmental and Sustainability Sciences, James Cook University, Cairns, QLD, Australia
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Abstract
Through their receptors at each level of hypothalamo-pituitary-gonadal axis glucocorticoid excess, either endogenous or administered or stress-induced, could affect steroid production in the testis and thus male fertility. The main ways by which glucocorticoids act are as follows: 1) Affecting gonadoliberin and LH synthesis and release through glucocorticoid receptors in hypothalamic neurons and pituitary gonadotropes. 2) By so far not clearly evidenced reduction of the number of LH receptors on the membrane of Leydig cells. 3) By affecting expression and function of steroidogenic enzymes in the testis. 4) By regulation of in situ access of glucocorticoid to its target cells in the testis. 5) By promotion Leydig cell apoptosis. The review provides a survey of physiological and molecular mechanisms staying behind these effects. It does not deal with the clinical effects of glucocorticoid treatment which would substantially exceed the scope of the pater.
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Affiliation(s)
- R Hampl
- Institute of Endocrinology, Prague, Czech Republic.
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31
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Kharwar RK, Singh V, Haldar C. Expression of Melatonin and Glucocorticoid
Receptor Varies along with Lung-Associated Cell-Mediated Immunity
in the Jungle Bush Quail Perdicula asiatica:
a Trade-off between Melatonin and Dexamethasone. J EVOL BIOCHEM PHYS+ 2020. [DOI: 10.1134/s0022093020040079] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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32
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Liu P, Yuan G, Zhou Q, Liu Y, He X, Zhang H, Guo Y, Wen Y, Huang S, Ke Y, Chen J. The association between metal exposure and semen quality in Chinese males: The mediating effect of androgens. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 264:113975. [PMID: 32559873 DOI: 10.1016/j.envpol.2020.113975] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Revised: 01/09/2020] [Accepted: 01/11/2020] [Indexed: 05/24/2023]
Abstract
As a crucial factor in male reproduction, androgens may represent an intermediate biological mechanism linking metal exposure with effects on semen quality. This study aimed to investigate the association between metal exposure and semen quality, and to assess the mediating role of seminal androgens between metal exposure and semen quality. We investigated the presence of 10 metals in semen and assessed their effect on semen quality in 1136 men recruited from a hospital in Shenzhen, China. Of these, 464 subjects were randomly selected for 4 androgens detection in semen. Cross-sectional associations between single/multiple metals, androgen levels and semen quality were explored by multivariable linear regressions. Mediation analysis was performed to detect the role of seminal androgens on the association between metal exposure and semen quality. Seminal selenium and iron were positively associated with both sperm concentration and total sperm count. Negative associations were observed between both manganese and zinc and sperm concentration, molybdenum and total sperm count, copper and sperm motility. Furthermore, we found significant dose-dependent relationships between both iron and selenium levels and dihydrotestosterone (DHT), arsenic levels and testosterone, as well as zinc and dehydroepiandrosterone. Mediation analysis indicated that higher seminal iron and selenium were associated with an increasing sperm concentration after controlling for DHT, with 10.32% and 12.89% of these associations were mediated by DHT, respectively. A similar mediation effect of DHT was observed in the associations between iron and selenium levels and total sperm count (13.39% and 21.57% mediation, respectively). Our findings suggested that the presence of selenium and iron in semen was beneficial to sperm concentration and total count. Seminal manganese, zinc, molybdenum and copper may be associated with reduced semen quality. The associations between seminal selenium and iron and sperm concentration and total count were partially explained by the concomitant variation of seminal DHT.
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Affiliation(s)
- Peiyi Liu
- Department of Molecular Epidemiology, Shenzhen Center for Disease Control and Prevention, 8 Longyuan Rd, Shenzhen, 518055, Guangdong, China; Department of Occupational and Environmental Health, Key Laboratory of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Rd, Wuhan, 430030, Hubei, China
| | - Guanxiang Yuan
- Laboratory of Physical Testing and Chemical Analysis, Shenzhen Center for Disease Control and Prevention, 8 Longyuan Rd, Shenzhen, 518055, Guangdong, China
| | - Qi Zhou
- Shenzhen People's Hospital, 1017 Dongmen North Rd, Shenzhen, 518020, Guangdong, China
| | - Yu Liu
- Shenzhen People's Hospital, 1017 Dongmen North Rd, Shenzhen, 518020, Guangdong, China
| | - Xinpeng He
- Department of Molecular Epidemiology, Shenzhen Center for Disease Control and Prevention, 8 Longyuan Rd, Shenzhen, 518055, Guangdong, China
| | - Huimin Zhang
- Laboratory of Physical Testing and Chemical Analysis, Shenzhen Center for Disease Control and Prevention, 8 Longyuan Rd, Shenzhen, 518055, Guangdong, China
| | - Yinsheng Guo
- Department of Environment and Health, Shenzhen Center for Disease Control and Prevention, 8 Longyuan Rd, Shenzhen, 518055, Guangdong, China
| | - Ying Wen
- Department of Molecular Epidemiology, Shenzhen Center for Disease Control and Prevention, 8 Longyuan Rd, Shenzhen, 518055, Guangdong, China
| | - Suli Huang
- Department of Environment and Health, Shenzhen Center for Disease Control and Prevention, 8 Longyuan Rd, Shenzhen, 518055, Guangdong, China
| | - Yuebin Ke
- Department of Molecular Epidemiology, Shenzhen Center for Disease Control and Prevention, 8 Longyuan Rd, Shenzhen, 518055, Guangdong, China
| | - Jinquan Chen
- Department of Molecular Epidemiology, Shenzhen Center for Disease Control and Prevention, 8 Longyuan Rd, Shenzhen, 518055, Guangdong, China.
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Saylam B, Çayan S. Do antioxidants improve serum sex hormones and total motile sperm count in idiopathic infertile men? Turk J Urol 2020; 46:442-448. [PMID: 32833620 DOI: 10.5152/tud.2020.20296] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Accepted: 07/28/2020] [Indexed: 01/24/2023]
Abstract
OBJECTIVE Reactive oxygen species reduce the male sex hormone levels and disrupt the hormonal balance that regulates male reproductive functions. They disrupt spermatozoa and other testicular cells. This study aimed at evaluating the effect of antioxidant treatment on serum gonadal hormones and sperm parameters in men with idiopathic infertility. MATERIAL AND METHODS A total of 100 idiopathic infertile men aged 23-46 years were included in the study. Control group and antioxidant treatment group consisted of 50 men each. Patients in the treatment group received oral antioxidant supplement once a day. The antioxidant supplement content included L-carnitine, L-arginine, vitamin E, vitamin C, coenzyme Q, glutathione, beta-carotene, magnesium, vitamin B12, zinc, vitamin A, vitamin B6, vitamin D3, folic acid, and selenium. Reproductive hormones and sperm parameters were compared between the groups at 6 months after starting the antioxidant therapy. RESULTS No significant differences were observed in the patient age (p=0.861), partner age (p=0.081), total motile sperm count (TMSC) (p=0.324), and follicle-stimulating hormone (FSH) (p=0.557), luteinizing hormone (LH) (p=0.235), and total testosterone levels (p=0.851) at baseline between the treatment and control groups. Although the mean TMSC did not increase significantly, the mean FSH (p=0.008), LH (p=0.008), and total testosterone (p=0.006) levels significantly increased from baseline to post-treatment in the treatment group. However, no significant differences from baseline to post-treatment were observed in TMSC (p=0.486), FSH (p=0.712), LH (p=0.696), and total testosterone levels (p=0.546) in the control group. CONCLUSION The research draws attention to the alternate treatment approaches in infertile men. Antioxidant treatment can increase the serum sex hormone levels.
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Affiliation(s)
- Barış Saylam
- Department of Urology, Mersin City Research and Training Hospital, Mersin, Turkey
| | - Selahittin Çayan
- Department of Urology, Mersin University Faculty of Medicine, Mersin, Turkey
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Erectile Dysfunction after Kidney Transplantation. J Clin Med 2020; 9:jcm9061991. [PMID: 32630390 PMCID: PMC7356955 DOI: 10.3390/jcm9061991] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Revised: 06/12/2020] [Accepted: 06/22/2020] [Indexed: 12/15/2022] Open
Abstract
Patients with kidney transplantation often have a worse quality of life than the general population. One of the reasons for this, in male patients, is the high prevalence of erectile dysfunction. This is mainly due to the presence of comorbidities, surgery for kidney transplantation, adverse drug effects, psychological changes related to chronic disease, as well as hyperprolactinemia and hypogonadism. Whenever these endocrine dysfunctions occur after kidney transplantation, they must be corrected with appropriate treatment, i.e., testosterone replacement therapy. Administration of the phosphodiesterase-5 inhibitor (PDE5i) sildenafil at the recommended posology does not significantly alter the pharmacokinetics of the calcineurin inhibitors cyclosporin A or tacrolimus and does not impair kidney allograft function. Tacrolimus increases the peak concentration and prolongs the half-life of PDE5i in kidney transplant patients and, therefore, daily administration cannot be recommended due to the significant drop in blood pressure. Intracavernous injection or topical application of alprostadil can be a second-line option for the treatment of erectile dysfunction after kidney transplantation, which does not alter cyclosporine concentrations and does not deteriorate kidney function. Finally, penile prostheses can be successfully implanted following pelvic organ transplantation after eliminating the risk of infection associated with surgery.
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35
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Braz KMG, Monteiro FM, Fernandes LG, Rodrigues NN, Peixoto Jr KDC, Green RE, Cortez A, Crespilho AM. Does bull temperament impact growth performance and semen quality? Livest Sci 2020. [DOI: 10.1016/j.livsci.2020.104038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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36
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Jeje SO, Adegbite LO, Akindele OO, Kunle-Alabi OT, Raji Y. Allium cepa Linn juice protect against alterations in reproductive functions induced by maternal dexamethsone treatment during lactation in male offspring of Wistar rats. Heliyon 2020; 6:e03872. [PMID: 32395653 PMCID: PMC7205748 DOI: 10.1016/j.heliyon.2020.e03872] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Revised: 10/02/2019] [Accepted: 04/23/2020] [Indexed: 11/13/2022] Open
Abstract
Treatment with dams with dexamethasone during lactation has been reported to induce oxidative stress in the testis of the offspring. Allium cepa L (Red Onion) is known to be a potent free radical scavenger. The protective role of Allium cepa against oxidative stress induced in testis following treatment with dexamehasone during lactation in Wistar rats was assessed. Twenty female rats were assigned into four groups (n = 5) during lactation and they were treated as follows: Group 1 serve as Control (distilled water), Group 2, 3, and four were admistered dexamethasone (60 μg/kg), Allium cepa (5 ml/kg) and dexamethasone + Allium cepa respectively. Testicular descent, pubertal age, sperm quality indices, and serum hormonal profile were assessed as indices of reproductive function. Testicular malondialdehyde (MDA) reduced glutathione (GSH) as well as superoxide dismutase (SOD) and catalase activities were assessed as measures of oxidative stress. Results obtained showed that dexamethasone caused significant (P < 0.05) reduction in testes weights, indices of sperm quality, serum testosterone, FSH, LH levels and testicular antioxidant enzyme activities. There was significant delay (P < 0.05) in days of testes descent, preputial separation and increase in testicular MDA. However, maternal treatment with Allium cepa Linn juice significantly (P < 0.05) improved both indices of reproductive function and testicular antioxidant enzymes. These findings suggest that Allium cepa Linn has a protective effect against testicular oxidative stress and reproductive dysfunction following treatment of dams with dexamethasone during lactation.
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Affiliation(s)
- S O Jeje
- Laboratory for Reproductive Physiology and Developmental Programming, Department of Physiology, University of Ibadan, Ibadan, Nigeria.,Department of Physiology, School of Health and Health Technology, Federal University of Technology, AKure, Nigeria
| | - L O Adegbite
- Laboratory for Reproductive Physiology and Developmental Programming, Department of Physiology, University of Ibadan, Ibadan, Nigeria
| | - O O Akindele
- Laboratory for Reproductive Physiology and Developmental Programming, Department of Physiology, University of Ibadan, Ibadan, Nigeria
| | - O T Kunle-Alabi
- Laboratory for Reproductive Physiology and Developmental Programming, Department of Physiology, University of Ibadan, Ibadan, Nigeria
| | - Y Raji
- Laboratory for Reproductive Physiology and Developmental Programming, Department of Physiology, University of Ibadan, Ibadan, Nigeria
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Martin MS, Owen M, Wintle NJP, Zhang G, Zhang H, Swaisgood RR. Stereotypic behaviour predicts reproductive performance and litter sex ratio in giant pandas. Sci Rep 2020; 10:7263. [PMID: 32350317 PMCID: PMC7190838 DOI: 10.1038/s41598-020-63763-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Accepted: 04/01/2020] [Indexed: 11/09/2022] Open
Abstract
Breeding and welfare problems confront many conservation breeding programs. Stereotypies-repetitive, unvarying, functionless behaviours -are common abnormal behaviours that often arise in suboptimal conditions. While the role of stereotypies in welfare assessment is well studied, few investigations address the relationship between stereotypic behaviour and reproduction. We examined the correlation between stereotypic behaviour and reproductive performance in 101 giant pandas (Ailuropoda melanoleuca). High stereotyping males copulated more and produced more cubs, suggesting that highly sexually motivated males were prone to stereotypy but also had high reproductive competence. Female stereotypies were negatively associated with all reproductive measures closely tied to behavioural competence: high stereotyping females were less likely to copulate, less likely to mother-rear cubs, and-probably a result of poor maternal care-had lower cub survival. However, females that exhibited stereotypies were more likely to produce a cub, suggesting stereotypies are tied to behavioural but not physiological competence. High stereotyping female pandas also displayed strong and consistent bias toward production of female offspring while paternal relationship to sex allocation was the reverse. These results are consistent with stress-mediated sex allocation theory. Our findings raise concern about differential reproductive success among high and low stereotyping pandas, and possible genetic adaptation to captivity.
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Affiliation(s)
- Meghan S Martin
- Institute for Conservation Research, San Diego Zoo Global, 15600 San Pasqual Valley Rd., Escondido, California, 92027, USA.,PDXWildlife, 9233 SW Brier Pl., Portland, OR, 97219, USA
| | - Megan Owen
- Institute for Conservation Research, San Diego Zoo Global, 15600 San Pasqual Valley Rd., Escondido, California, 92027, USA
| | | | - Guiquan Zhang
- China Conservation and Research Center for the Giant Panda, Wolong, Sichuan, 623006, P.R. China
| | - Hemin Zhang
- China Conservation and Research Center for the Giant Panda, Wolong, Sichuan, 623006, P.R. China
| | - Ronald R Swaisgood
- Institute for Conservation Research, San Diego Zoo Global, 15600 San Pasqual Valley Rd., Escondido, California, 92027, USA.
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38
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Leisegang K, Dutta S. Do lifestyle practices impede male fertility? Andrologia 2020; 53:e13595. [PMID: 32330362 DOI: 10.1111/and.13595] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Revised: 03/21/2020] [Accepted: 03/24/2020] [Indexed: 12/15/2022] Open
Abstract
Alongside an increasing prevalence of couple and male infertility, evidence suggests there is a global declining trend in male fertility parameters over the past few decades. This may, at least in part, be explained through detrimental lifestyle practices and exposures. These include alcohol and tobacco consumption, use of recreational drugs (e.g., cannabis, opioids and anabolic steroids), poor nutritional habits, obesity and metabolic syndrome, genital heat stress (e.g., radiation exposure through cell phones and laptops, prolonged periods of sitting, tight-fitting underwear and recurrent hot baths or saunas), exposure to endocrine-disrupting chemicals (e.g., pesticide residue, bisphenol A, phthalates and dioxins) and psychological stress. This review discusses these lifestyle practices and the current evidence associated with male infertility. Furthermore, known mechanisms of action are also discussed for each of these. Common mechanisms associated with a reduction in spermatogenesis and/or steroidogenesis due to unfavourable lifestyle practices include inflammation and oxidative stress locally or systemically. It is recommended that relevant lifestyle practices are investigated in clinical history of male infertility cases, particularly in unexplained or idiopathic male infertility. Appropriate modification of detrimental lifestyle practices is further suggested and recommended in the management of male infertility.
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Affiliation(s)
- Kristian Leisegang
- School of Natural Medicine, University of the Western Cape, Cape Town, South Africa
| | - Sulagna Dutta
- Department of Oral Biology and Biomedical Sciences, Faculty of Dentistry, MAHSA University, Selangor, Malaysia
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39
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Sipilä P, Junnila A, Hakkarainen J, Huhtaniemi R, Mairinoja L, Zhang FP, Strauss L, Ohlsson C, Kotaja N, Huhtaniemi I, Poutanen M. The lack of HSD17B3 in male mice results in disturbed Leydig cell maturation and endocrine imbalance akin to humans with HSD17B3 deficiency. FASEB J 2020; 34:6111-6128. [PMID: 32190925 DOI: 10.1096/fj.201902384r] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Revised: 01/31/2020] [Accepted: 02/13/2020] [Indexed: 11/11/2022]
Abstract
Hydroxysteroid (17β) dehydrogenase type 3 (HSD17B3) deficiency causes a disorder of sex development in humans, where affected males are born with female-appearing external genitalia, but are virilized during puberty. The hormonal disturbances observed in the Hsd17b3 knockout mice (HSD17B3KO), generated in the present study, mimic those found in patients with HSD17B3 mutations. Identical to affected humans, serum T in the adult HSD17B3KO mice was within the normal range, while a striking increase was detected in serum A-dione concentration. This resulted in a marked reduction of the serum T/A-dione ratio, a diagnostic hallmark for the patients with HSD17B3 deficiency. However, unlike humans, male HSD17B3KO mice were born with normally virilized phenotype, but presenting with delayed puberty. In contrast to the current belief, data from HSD17B3KO mice show that the circulating T largely originates from the testes, indicating a strong compensatory mechanism in the absence of HSD17B3. The lack of testicular malignancies in HSD17B3KO mice supports the view that testis tumors in human patients are due to associated cryptorchidism. The HSD17B3KO mice presented also with impaired Leydig cell maturation and signs of undermasculinization in adulthood. The identical hormonal disturbances between HSD17B3 deficient knockout mice and human patients make the current mouse model valuable for understanding the mechanism of the patient phenotypes, as well as endocrinopathies and compensatory steroidogenic mechanisms in HSD17B3 deficiency.
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Affiliation(s)
- P Sipilä
- Institute of Biomedicine, Research Centre for Integrative Physiology and Pharmacology, University of Turku, Turku, Finland.,Turku Center for Disease Modeling (TCDM), Institute of Biomedicine, University of Turku, Turku, Finland
| | - A Junnila
- Institute of Biomedicine, Research Centre for Integrative Physiology and Pharmacology, University of Turku, Turku, Finland
| | - J Hakkarainen
- Institute of Biomedicine, Research Centre for Integrative Physiology and Pharmacology, University of Turku, Turku, Finland
| | - R Huhtaniemi
- Institute of Biomedicine, Research Centre for Integrative Physiology and Pharmacology, University of Turku, Turku, Finland
| | - L Mairinoja
- Institute of Biomedicine, Research Centre for Integrative Physiology and Pharmacology, University of Turku, Turku, Finland
| | - F P Zhang
- Institute of Biomedicine, Research Centre for Integrative Physiology and Pharmacology, University of Turku, Turku, Finland
| | - L Strauss
- Institute of Biomedicine, Research Centre for Integrative Physiology and Pharmacology, University of Turku, Turku, Finland.,Turku Center for Disease Modeling (TCDM), Institute of Biomedicine, University of Turku, Turku, Finland
| | - C Ohlsson
- Institute of Medicine, the Sahlgrenska Academy, Gothenburg University, Gothenburg, Sweden
| | - N Kotaja
- Institute of Biomedicine, Research Centre for Integrative Physiology and Pharmacology, University of Turku, Turku, Finland
| | - I Huhtaniemi
- Institute of Biomedicine, Research Centre for Integrative Physiology and Pharmacology, University of Turku, Turku, Finland
| | - M Poutanen
- Institute of Biomedicine, Research Centre for Integrative Physiology and Pharmacology, University of Turku, Turku, Finland.,Turku Center for Disease Modeling (TCDM), Institute of Biomedicine, University of Turku, Turku, Finland.,Institute of Medicine, the Sahlgrenska Academy, Gothenburg University, Gothenburg, Sweden
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40
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Yahyazadeh A, Altunkaynak BZ, Kaplan S. Biochemical, immunohistochemical and morphometrical investigation of the effect of thymoquinone on the rat testis following exposure to a 900-MHz electromagnetic field. Acta Histochem 2020; 122:151467. [PMID: 31784235 DOI: 10.1016/j.acthis.2019.151467] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Revised: 11/08/2019] [Accepted: 11/08/2019] [Indexed: 12/11/2022]
Abstract
Long-term use of cell phones emitting electromagnetic fields (EMFs) have raised concerns regarding public health in recent year. We aimed to investigate the possible effects of 900 MHz EMF exposure (60 min/day for 28 days) on the rat testis. Another objective was to determine whether the deleterious effect of EMF radiation would be reduced by the administration of thymoquinone (TQ) (10 mg/kg/day). Twenty-four male adult Wistar albino rats were randomly selected, then assigned into four groups as followControl, EMF, TQ and EMF + TQ. Testicular samples were analyzed using histological, stereological, biochemical and immunohistochemical techniques. Total numbers of primary spermatocytes and spermatids as well as Leydig cells were significantly decreased in the EMF group compared to the Control group (p < 0.05). In the EMF + TQ group, the total number of primary spermatocytes was significantly increased compared to the EMF group (p < 0.05). Superoxide dismutase (SOD) activity was significantly increased in the EMF group compared to the Control group (p < 0.05). Also, serum testosterone levels and wet weight of testes were significantly decreased in the EMF group compared to the Control group (p < 0.05). Our findings suggested that exposure to a 900 MHz EMF had adverse effects on rat testicular tissue and that the administration of TQ partially mitigated testicular oxidative damages caused by EMF radiation.
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41
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Li X, Wen Z, Wang Y, Mo J, Zhong Y, Ge RS. Bisphenols and Leydig Cell Development and Function. Front Endocrinol (Lausanne) 2020; 11:447. [PMID: 32849262 PMCID: PMC7411000 DOI: 10.3389/fendo.2020.00447] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2020] [Accepted: 06/08/2020] [Indexed: 12/14/2022] Open
Abstract
Bisphenol A (BPA) is a ubiquitous environmental pollutant, mainly from the production and use of plastics and the degradation of wastes related to industrial plastics. Evidence from laboratory animal and human studies supports the view that BPA has an endocrine disrupting effect on Leydig cell development and function. To better understand the adverse effects of BPA, we reviewed its role and mechanism by analyzing rodent data in vivo and in vitro and human epidemiological evidence. BPA has estrogen and anti-androgen effects, thereby destroying the development and function of Leydig cells and causing related reproductive diseases such as testicular dysgenesis syndrome, delayed puberty, and subfertility/infertility. Due to the limitation of BPA production, the increased use of BPA analogs has also attracted attention to these new chemicals. They may share actions and mechanisms similar to or different from BPA.
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Affiliation(s)
- Xiaoheng Li
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, China
| | - Zina Wen
- Chengdu Xi'nan Gynecology Hospital, Chengdu, China
| | - Yiyan Wang
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, China
| | - Jiaying Mo
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, China
| | - Ying Zhong
- Chengdu Xi'nan Gynecology Hospital, Chengdu, China
- *Correspondence: Ying Zhong
| | - Ren-Shan Ge
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, China
- Ren-Shan Ge
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42
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Liu B, Zhao L, Yue C, Qian M, Xie M. Changes in gonadal function at different stages of chronic restraint stress-induced depression animals. Physiol Behav 2019; 210:112656. [DOI: 10.1016/j.physbeh.2019.112656] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Revised: 08/03/2019] [Accepted: 08/16/2019] [Indexed: 11/29/2022]
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43
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Chen X, Mo J, Zhang S, Li X, Huang T, Zhu Q, Wang S, Chen X, Ge RS. 4-Bromodiphenyl Ether Causes Adrenal Gland Dysfunction in Rats during Puberty. Chem Res Toxicol 2019; 32:1772-1779. [PMID: 31423765 DOI: 10.1021/acs.chemrestox.9b00123] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Polybrominated diphenyl ethers (PBDEs) are a group of flame retardants with two or more bromines attached. They are endocrine disruptors. PBDEs photodegrade into 4-bromodiphenyl ether (BDE3). Whether BDE3 impairs adrenal cortical cell function during postnatal development still remains unknown. The aim of the current study was to investigate the influence of BDE3 on adrenal cortical cell function. Sprague-Dawley rats (35 days of age, male) were orally administered with BDE3 (0, 50, 100, and 200 mg/kg/day body weight) for 21 days. BDE3 significantly increased serum aldosterone and corticosterone levels at 200 mg/kg without affecting adrenocorticotropic hormone level. Further study showed that BDE3 up-regulated Cyp11b1 at 100 and 200 mg/kg and Scarb1, Star, Cyp11b2, Cyp21, and Nr5a1 mRNA levels in the 200 mg/kg group. BDE3 also decreased the phosphorylation of AMP-activated protein kinase (AMPK) at 200 mg/kg and increased PGC-1α and phosphorylated cyclic AMP-responsive element-binding protein (CREB)/CREB at 200 mg/kg. Taken together, these findings demonstrate that BDE3 stimulates adrenal cell function likely through decreasing phosphorylation of AMPK and increasing phosphorylation of CREB.
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Affiliation(s)
- Xiuxiu Chen
- Department of Anesthesiology , the Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University , Wenzhou 325000 , China
| | - Jiaying Mo
- Department of Anesthesiology , the Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University , Wenzhou 325000 , China
| | - Song Zhang
- Department of Anesthesiology , the Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University , Wenzhou 325000 , China
| | - Xiaoheng Li
- Department of Anesthesiology , the Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University , Wenzhou 325000 , China
| | - Tongliang Huang
- Department of Anesthesiology , the Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University , Wenzhou 325000 , China
| | - Qiqi Zhu
- Department of Anesthesiology , the Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University , Wenzhou 325000 , China
| | - Songxue Wang
- Department of Anesthesiology , the Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University , Wenzhou 325000 , China
| | - Xianwu Chen
- Department of Anesthesiology , the Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University , Wenzhou 325000 , China
| | - Ren-Shan Ge
- Department of Anesthesiology , the Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University , Wenzhou 325000 , China
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Kaufman JM, Lapauw B, Mahmoud A, T'Sjoen G, Huhtaniemi IT. Aging and the Male Reproductive System. Endocr Rev 2019; 40:906-972. [PMID: 30888401 DOI: 10.1210/er.2018-00178] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Accepted: 12/27/2018] [Indexed: 12/21/2022]
Abstract
This narrative review presents an overview of current knowledge on fertility and reproductive hormone changes in aging men, the factors driving and modulating these changes, their clinical consequences, and the benefits and risks of testosterone (T) therapy. Aging is accompanied by moderate decline of gamete quality and fertility. Population mean levels show a mild total T decline, an SHBG increase, a steeper free T decline, and a moderate LH increase with important contribution of comorbidities (e.g., obesity) to these changes. Sexual symptoms and lower hematocrit are associated with low T and are partly responsive to T therapy. The relationship of serum T with body composition and metabolic health is bidirectional; limited beneficial effects of T therapy on body composition have only marginal effects on metabolic health and physical function. Skeletal changes are associated primarily with estradiol and SHBG. Cognitive decline is not consistently linked to low T and is not improved by T therapy. Although limited evidence links moderate androgen decline with depressive symptoms, T therapy has small beneficial effects on mood, depressive symptoms, and vitality in elderly patients with low T. Suboptimal T (and/or DHT) has been associated with increased risk of stroke, but not of ischemic heart disease, whereas an association with mortality probably reflects that low T is a marker of poor health. Globally, neither severity of clinical consequences attributable to low T nor the nature and magnitude of beneficial treatment effects justify the concept of some broadly applied "T replacement therapy" in older men with low T. Moreover, long-term safety of T therapy is not established.
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Affiliation(s)
- Jean-Marc Kaufman
- Department of Endocrinology, Ghent University Hospital, Ghent, Belgium
| | - Bruno Lapauw
- Department of Endocrinology, Ghent University Hospital, Ghent, Belgium
| | - Ahmed Mahmoud
- Department of Endocrinology, Ghent University Hospital, Ghent, Belgium
| | - Guy T'Sjoen
- Department of Endocrinology, Ghent University Hospital, Ghent, Belgium
| | - Ilpo Tapani Huhtaniemi
- Department of Surgery and Cancer, Institute of Reproductive and Developmental Biology, Imperial College London, London, United Kingdom.,Department of Physiology, Institute of Biomedicine, University of Turku, Turku, Finland
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Gholib G, Wahyuni S, Akmal M, Hasan M, Agil M, Purwantara B. The validation of a commercial enzyme-linked immunosorbent assay and the effect of freeze-thaw cycles of serum on the stability of cortisol and testosterone concentrations in Aceh cattle. F1000Res 2019; 8:1220. [PMID: 32148759 PMCID: PMC7047911 DOI: 10.12688/f1000research.19804.1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 03/03/2020] [Indexed: 09/20/2023] Open
Abstract
Background: To obtain accurate measurements of cortisol (C) and testosterone (T) in Aceh cattle, commercial enzyme-linked immunosorbent assay (ELISA) kits need to be carefully validated. Moreover, repeated freeze-thaw cycles during the storage of the samples may affect the stability of the hormones in the serum. Here, the reliability of C and T concentration measurements in the serum of Aceh cattle, was tested using commercial C and T ELISA kits designed to measure human C and T concentrations. Further, the effect of repeated freeze-thaw cycles on the stability of C and T concentrations in the serum was evaluated. Methods: Commercial C (Cat. no. EIA-1887) and T (Cat. no. EIA-1559) ELISA kits from DRG Instruments GmbH were validated through an analytical validation test (i.e., parallelism, accuracy, and precision) and a biological validation test (for C: effect of transportation on the C secretion; for T: the concentrations of T between bulls and cows). To test the effects of freeze-thaw cycles, cattle serum was subjected to the following treatments: (i) remained frozen at -20 OC (control group); (ii) exposed to freeze-thaw cycles for two, four, six, and eight times (test groups). Results: Parallelism, accuracy, and precision tests showed that both C and T ELISA kits adequately measured C and T in the serum of Aceh cattle. Concentrations of C post-transportation were significantly higher than pre-transportation (p<0.01). Concentrations of T in bulls were significantly higher than in cows (p<0.01). After four to eight freeze-thaw cycles, C concentrations were significantly lower compared to the control group (all p < 0.05). In contrast, T concentrations remained stable (all p>0.05). Conclusions: Commercial C (EIA-1887) and T (EIA-1559) ELISA kits are reliable assays for measuring serum C and T, respectively, in Aceh cattle. Repeated freeze-thaw cycles significantly affected the stability of serum C, but did not for T.
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Affiliation(s)
- Gholib Gholib
- Physiology Laboratory, Faculty of Veterinary Medicine, Universitas Syiah Kuala, Banda Aceh, Aceh, 23111, Indonesia
| | - Sri Wahyuni
- Anatomy Laboratory, Faculty of Veterinary Medicine, Universitas Syiah Kuala, Banda Aceh, Aceh, 23111, Indonesia
| | - Muslim Akmal
- Histology Laboratory, Faculty of Veterinary Medicine, Universitas Syiah Kuala, Banda Aceh, Aceh, 23111, Indonesia
| | - Muhammad Hasan
- Clinical Laboratory, Faculty of Veterinary Medicine, Universitas Syiah Kuala, Banda Aceh, Aceh, 23111, Indonesia
| | - Muhammad Agil
- Department of Veterinary Clinic Reproduction and Pathology, Bogor Agricultural University, Bogor, Jawa Barat, 16680, Indonesia
| | - Bambang Purwantara
- Department of Veterinary Clinic Reproduction and Pathology, Bogor Agricultural University, Bogor, Jawa Barat, 16680, Indonesia
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Gholib G, Wahyuni S, Akmal M, Hasan M, Agil M, Purwantara B. The validation of a commercial enzyme-linked immunosorbent assay and the effect of freeze-thaw cycles of serum on the stability of cortisol and testosterone concentrations in Aceh cattle. F1000Res 2019; 8:1220. [PMID: 32148759 PMCID: PMC7047911 DOI: 10.12688/f1000research.19804.2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 03/03/2020] [Indexed: 01/22/2024] Open
Abstract
Background: To obtain accurate measurements of cortisol (C) and testosterone (T) in Aceh cattle, commercial enzyme-linked immunosorbent assay (ELISA) kits need to be carefully validated. Moreover, repeated freeze-thaw cycles during the storage of the samples may affect the stability of the hormones in the serum. Here, the reliability of C and T concentration measurements in the serum of Aceh cattle, was tested using commercial C and T ELISA kits designed to measure human C and T concentrations. Further, the effect of repeated freeze-thaw cycles on the stability of C and T concentrations in the serum was evaluated. Methods: Commercial C (Cat. no. EIA-1887) and T (Cat. no. EIA-1559) ELISA kits from DRG Instruments GmbH were validated through an analytical validation test (i.e., parallelism, accuracy, and precision) and a biological validation test (for C: effect of transportation on the C secretion; for T: the concentrations of T between bulls and cows). To test the effects of freeze-thaw cycles, cattle serum was subjected to the following treatments: (i) remained frozen at -20 OC (control group); (ii) exposed to freeze-thaw cycles for two, four, six, and eight times (test groups). Results: Parallelism, accuracy, and precision tests showed that both C and T ELISA kits adequately measured C and T in the serum of Aceh cattle. Concentrations of C post-transportation were significantly higher than pre-transportation (p<0.01). Concentrations of T in bulls were significantly higher than in cows (p<0.01). After four to eight freeze-thaw cycles, C concentrations were significantly lower compared to the control group (all p < 0.05). In contrast, T concentrations remained stable (all p>0.05). Conclusions: Commercial C (EIA-1887) and T (EIA-1559) ELISA kits are reliable assays for measuring serum C and T, respectively, in Aceh cattle. Repeated freeze-thaw cycles significantly affected the stability of serum C, but did not for T.
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Affiliation(s)
- Gholib Gholib
- Physiology Laboratory, Faculty of Veterinary Medicine, Universitas Syiah Kuala, Banda Aceh, Aceh, 23111, Indonesia
| | - Sri Wahyuni
- Anatomy Laboratory, Faculty of Veterinary Medicine, Universitas Syiah Kuala, Banda Aceh, Aceh, 23111, Indonesia
| | - Muslim Akmal
- Histology Laboratory, Faculty of Veterinary Medicine, Universitas Syiah Kuala, Banda Aceh, Aceh, 23111, Indonesia
| | - Muhammad Hasan
- Clinical Laboratory, Faculty of Veterinary Medicine, Universitas Syiah Kuala, Banda Aceh, Aceh, 23111, Indonesia
| | - Muhammad Agil
- Department of Veterinary Clinic Reproduction and Pathology, Bogor Agricultural University, Bogor, Jawa Barat, 16680, Indonesia
| | - Bambang Purwantara
- Department of Veterinary Clinic Reproduction and Pathology, Bogor Agricultural University, Bogor, Jawa Barat, 16680, Indonesia
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Gholib G, Wahyuni S, Akmal M, Hasan M, Agil M, Purwantara B. The validation of a commercial enzyme-linked immunosorbent assay and the effect of freeze-thaw cycles of serum on the stability of cortisol and testosterone concentrations in Aceh cattle. F1000Res 2019; 8:1220. [PMID: 32148759 PMCID: PMC7047911 DOI: 10.12688/f1000research.19804.3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 03/03/2020] [Indexed: 11/20/2022] Open
Abstract
Background: To obtain accurate measurements of cortisol (C) and testosterone (T) in Aceh cattle, commercial enzyme-linked immunosorbent assay (ELISA) kits need to be carefully validated. Moreover, repeated freeze-thaw cycles during the storage of the samples may affect the stability of the hormones in the serum. Here, the reliability of C and T concentration measurements in the serum of Aceh cattle, was tested using commercial C and T ELISA kits designed to measure human C and T concentrations. Further, the effect of repeated freeze-thaw cycles on the stability of C and T concentrations in the serum was evaluated. Methods: Commercial C (Cat. no. EIA-1887) and T (Cat. no. EIA-1559) ELISA kits from DRG Instruments GmbH were validated through an analytical validation test (i.e., parallelism, accuracy, and precision) and a biological validation test (for C: effect of transportation on the C secretion; for T: the concentrations of T between bulls and cows). To test the effects of freeze-thaw cycles, cattle serum was subjected to the following treatments: (i) remained frozen at -20 OC (control group); (ii) exposed to freeze-thaw cycles for two, four, six, and eight times (test groups). Results: Parallelism, accuracy, and precision tests showed that both C and T ELISA kits adequately measured C and T in the serum of Aceh cattle. Concentrations of C post-transportation were significantly higher than pre-transportation (p<0.01). Concentrations of T in bulls were significantly higher than in cows (p<0.01). After four to eight freeze-thaw cycles, C concentrations were significantly lower compared to the control group (all p < 0.05). In contrast, T concentrations remained stable (all p>0.05). Conclusions: Commercial C (EIA-1887) and T (EIA-1559) ELISA kits are reliable assays for measuring serum C and T, respectively, in Aceh cattle. Repeated freeze-thaw cycles significantly affected the stability of serum C, but did not for T.
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Affiliation(s)
- Gholib Gholib
- Physiology Laboratory, Faculty of Veterinary Medicine, Universitas Syiah Kuala, Banda Aceh, Aceh, 23111, Indonesia
| | - Sri Wahyuni
- Anatomy Laboratory, Faculty of Veterinary Medicine, Universitas Syiah Kuala, Banda Aceh, Aceh, 23111, Indonesia
| | - Muslim Akmal
- Histology Laboratory, Faculty of Veterinary Medicine, Universitas Syiah Kuala, Banda Aceh, Aceh, 23111, Indonesia
| | - Muhammad Hasan
- Clinical Laboratory, Faculty of Veterinary Medicine, Universitas Syiah Kuala, Banda Aceh, Aceh, 23111, Indonesia
| | - Muhammad Agil
- Department of Veterinary Clinic Reproduction and Pathology, Bogor Agricultural University, Bogor, Jawa Barat, 16680, Indonesia
| | - Bambang Purwantara
- Department of Veterinary Clinic Reproduction and Pathology, Bogor Agricultural University, Bogor, Jawa Barat, 16680, Indonesia
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Kempinas WG, Borges CS, Leite GAA, Figueiredo TM, Gregory M, Cyr DG. Prenatal exposure to betamethasone causes intergenerational impairment of epididymal development in the rat. Andrology 2019; 7:719-729. [PMID: 31250541 DOI: 10.1111/andr.12657] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Revised: 04/30/2019] [Accepted: 05/05/2019] [Indexed: 02/06/2023]
Abstract
BACKGROUND Studies on epididymal toxicology are scarce. Betamethasone (BM) is a glucocorticoid used in clinical practice for antenatal therapy. We previously reported changes to testicular morphology, altered sperm quality, and fertility in adult rats following intrauterine administration of BM. OBJECTIVES Given that high levels of corticosteroids during gestation lead to fetal androgen depletion, and the essential role of testosterone during epididymal development, here we investigated epididymal morphology and physiology in the F1 and F2 male offspring of female rats treated with BM during gestation. MATERIALS AND METHODS Pregnant rats were randomly divided into two experimental groups: control (saline vehicle, n = 11) and BM-treated group (0.1 mg/kg betamethasone 21-phosphate disodium, n = 13). Rats received an intramuscular injection of vehicle or BM on gestational days 12, 13, 18, and 19. This encompasses the beginning of the critical window of male rat reproductive tract development. A subset of three males from each litter (n = 5 litters/group) was used: One rat per litter was euthanized at puberty, one was euthanized at adulthood, while the others were mated with a non-treated female to obtain the F2 generation. The same protocol described for the F1 was applied for F2, except for the mating protocol. RESULTS In both F1 and F2 generations, prenatal BM exposure resulted in delayed differentiation of the cauda epididymal epithelium, characterized by increased cribriform appearance on PND 45, and displayed weaker or non-detectable Cx43 immunostaining. Furthermore, in the F1 generation only, immunostaining of TP63, a transcription factor expressed in basal cells, appeared more intense with a greater number of TP63-positive cells observed in the cauda epididymis. In adults, the epithelial area was reduced in the F1 BM rats. The contractile activity of isolated epididymal ducts was comparable between groups. DISCUSSION AND CONCLUSION Prenatal BM exposure leads to intergenerational impairment in the development and structure of the rat epididymis.
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Affiliation(s)
- W G Kempinas
- Laboratory of Reproductive and Developmental Biology and Toxicology, Morphology Department, Institute of Biosciences, São Paulo State University (UNESP), Botucatu, Brazil
| | - C S Borges
- Laboratory of Reproductive and Developmental Biology and Toxicology, Morphology Department, Institute of Biosciences, São Paulo State University (UNESP), Botucatu, Brazil
| | - G A A Leite
- Laboratory of Reproductive and Developmental Biology and Toxicology, Morphology Department, Institute of Biosciences, São Paulo State University (UNESP), Botucatu, Brazil
| | - T M Figueiredo
- Laboratory of Reproductive and Developmental Biology and Toxicology, Morphology Department, Institute of Biosciences, São Paulo State University (UNESP), Botucatu, Brazil
| | - M Gregory
- Laboratory for Reproductive Toxicology, INRS-Institut Armand-Frappier, University of Quebec, Laval, QC, Canada
| | - D G Cyr
- Laboratory for Reproductive Toxicology, INRS-Institut Armand-Frappier, University of Quebec, Laval, QC, Canada
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Bowel preparation for colonoscopy may decrease the levels of testosterone in Korean men. Sci Rep 2019; 9:7080. [PMID: 31068639 PMCID: PMC6506588 DOI: 10.1038/s41598-019-43598-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Accepted: 04/26/2019] [Indexed: 12/27/2022] Open
Abstract
Although colonoscopy is commonly conducted for medical check-ups in Korea, investigations for the influence of bowel preparation on various health conditions are insufficient. This cross-sectional study investigated whether bowel preparation has an influence on serum levels of testosterone. A total of 1114 men were divided into the bowel preparation group and control groups. The median total and free testosterone levels were significantly lower in the bowel preparation group (14.89 and 0.26 nmol/L, respectively) than in the control groups (15.72 and 0.28 nmol/L, respectively). The level of total testosterone significantly increased with age in the bowel preparation group (r = 0.103). The differences in the levels of total and free testosterone between the 2 groups were more prominent in younger men than in older men. In multivariate regression models, bowel preparation was independently associated with the levels of total and free testosterone. In these models, the interaction between age and bowel preparation was significant for the levels of total and free testosterone. In conclusion, bowel preparation may independently decrease the serum levels of total and free testosterone. The decline in testosterone was more evident in younger men than in older men.
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Elsharkawy EE, El-Nasser MA, Bakheet AA. Mancozeb impaired male fertility in rabbits with trials of glutathione detoxification. Regul Toxicol Pharmacol 2019; 105:86-98. [PMID: 31014950 DOI: 10.1016/j.yrtph.2019.04.012] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2018] [Revised: 03/18/2019] [Accepted: 04/16/2019] [Indexed: 12/28/2022]
Abstract
The study aims to evaluate the potential reproductive toxicity induced by mancozeb fungicide in male rabbits and to examine the ameliorative effect of glutathione (GSH), a non-enzymatic antioxidant, against mancozeb reproductive toxicity. Mancozeb is a member of the dithiocarbamates group currently in use in the management of fungal diseases of plants. To achieve these aims, mature male White New-Zealand rabbits of 4-5 months old were randomly assigned to four groups of 9 animals each: control, mancozeb only, mancozeb and GSH, and GSH only. This study discovered a significant reduction in serum FSH, LH, testosterone and testicular LDH, ACP, and ALP levels in the groups of mancozeb-treated rabbits compared with control. The mancozeb-treated groups also showed significant losses in sperm viability, along with a significant increase in the number of abnormal sperms. Finally, an upregulation in steroidogenic 3β-HSD enzyme activity was noted in mancozeb-treated rabbits. Histopathological inspection of the testicles established disruption of the germinal epithelium with vacuolization of Leydig cells and reduced spermatogenic cells. GSH co-administration increased serum concentrations of FSH, LH, testosterone, and levels of the testicular enzymes: LDH, ACP, and ALP. Improved steroidogenesis was indicated in this group by a significant improvement in the testicular 3β-HSD enzyme, by a significant increase in sperm viability, and by a significant decrease in the number of abnormal sperms. The findings of this study suggest that mancozeb exposure has anti-spermatogenic and anti-steroidogenic adverse effects in rabbits and administration of GSH may alleviate the reproductive toxicity.
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Affiliation(s)
- Eman E Elsharkawy
- Department of Forensic Medicine and Toxicology, Faculty of Veterinary Medicine, Assiut University, Egypt.
| | - Mahmoud Abd El-Nasser
- Department of Forensic Medicine and Toxicology, Faculty of Veterinary Medicine, Assiut University, Egypt
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