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Yland JJ, McKinnon CJ, Hatch EE, Eisenberg ML, Nillni YI, Rothman KJ, Wise LA. A Prospective Study of Male Depression, Psychotropic Medication Use, and Fecundability. Am J Mens Health 2022; 16:15579883221075520. [PMID: 35144505 PMCID: PMC8841933 DOI: 10.1177/15579883221075520] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
We examined the associations of male depression and psychotropic medication use with fecundability in a North American preconception cohort study (2013–2020). Men aged ≥21 years completed a baseline questionnaire with questions on history of diagnosed depression, the Major Depression Inventory (MDI), and psychotropic medication use. Pregnancy status was updated via bimonthly female follow-up questionnaires until pregnancy or 12 menstrual cycles, whichever occurred first. Analyses were restricted to 2,398 couples attempting conception for ≤6 menstrual cycles at entry. We fit proportional probabilities models to estimate fecundability ratios (FRs) and 95% confidence intervals (CIs), adjusting for age (male and female), education, (male and female), race/ethnicity, physical activity, alcohol intake, body mass index, smoking, and having previously impregnated a partner. Nearly 12% of participants reported a depression diagnosis; 90.6% had low depressive symptoms (MDI <20), 3.5% had mild symptoms (MDI: 20–24), 2.7% had moderate symptoms (MDI: 25–29), and 3.3% had severe symptoms (MDI: ≥30). A total of 8.8% of participants reported current use of psychotropic medications. History of depression was associated with slightly reduced fecundability, although this result was also reasonably compatible with chance (FR = 0.89; 95% CI: [0.76, 1.04]). FRs for mild, moderate, and severe compared with low depressive symptoms were 0.89 (95% CI: [0.66, 1.21]), 0.90 (95% CI: [0.62, 1.31]), and 0.88 (95% CI: [0.65, 1.20]), respectively. This indicates little evidence of a dose–response relationship for depressive symptoms with fecundability, although estimates were imprecise. Current psychotropic medication use mediated 44% of the association between depressive symptoms and fecundability.
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Affiliation(s)
- Jennifer J Yland
- Department of Epidemiology, Boston University School of Public Health, Boston, MA, USA
| | - Craig J McKinnon
- Department of Epidemiology, Boston University School of Public Health, Boston, MA, USA
| | - Elizabeth E Hatch
- Department of Epidemiology, Boston University School of Public Health, Boston, MA, USA
| | - Michael L Eisenberg
- Department of Urology and Obstetrics & Gynecology, Stanford University School of Medicine, Stanford, CA, USA
| | - Yael I Nillni
- Department of Psychiatry, Boston University School of Medicine, Boston, MA, USA.,National Center for PTSD, Women's Health Sciences Division at VA Boston Healthcare System, Boston, MA, USA
| | - Kenneth J Rothman
- Department of Epidemiology, Boston University School of Public Health, Boston, MA, USA.,RTI International, Research Triangle Park, NC, USA
| | - Lauren A Wise
- Department of Epidemiology, Boston University School of Public Health, Boston, MA, USA
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In Vitro Contraction of Isolated Cauda Epididymal Duct Smooth Muscle as a Complimentary Approach to Physiological, Pathological, Toxicological, and Pharmacological Studies on Epididymal Function. Methods Mol Biol 2021. [PMID: 33423227 DOI: 10.1007/978-1-0716-1091-6_6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
Abstract
Contraction of cauda epididymal duct (CE) smooth muscle is one of the very first events of the seminal emission phase of ejaculation. The contraction of CE smooth muscle is governed by a complex interaction of hormones, autacoids, and by the neurotransmitters released from the epididymal intramural nerve endings, and any impairment in the CE smooth muscle contraction has the potential to impair male fertility. Apart the obvious pathophysiological and toxicological importance of CE smooth muscle contraction, modulation of CE contraction has pharmaceutical interest offering a druggable target to development of drugs to improve/impair male fertility. The in vitro contraction experiments constitute a valuable approach to an in-depth evaluation of functional and molecular changes resulting from pathologies or drug exposure. Therefore, this chapter consists in a description of in vitro pharmacological reactivity contractility of the epididymal duct in a controlled medium, maintained at 30 °C of temperature and continuously bubbled with 95% O2 and 5% CO2 to obtain cumulative concentration-response curves that has been fundamental to some of our investigations on epididymal physiology, toxicology, and pharmacology.
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Borges CS, Silva PV, Lozano AFQ, Missassi G, Silva RF, Anselmo-Franci JA, Kempinas WG. Impact of timing of the anorexigen sibutramine administration on reproductive end-points of male rats. Basic Clin Pharmacol Toxicol 2020; 127:525-532. [PMID: 32632976 DOI: 10.1111/bcpt.13467] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2020] [Accepted: 06/30/2020] [Indexed: 11/28/2022]
Abstract
Sibutramine is a non-selective serotonin-norepinephrine reuptake inhibitor orally administered for weight loss. In a previous study, we showed pharmacological mechanisms involved in the reduction of sperm quality and fertility of rats exposed for 30 days to this anorexigen in the light phase of the light-dark (l/d) cycle. It is already known that rodents are nightlife animals, with higher metabolic activity during the dark phase than in the light phase of the light-dark (l/d) cycle. Thus, the present study aimed to investigate whether the deleterious effects on reproductive parameters after sibutramine administration would be enhanced after a shorter period of exposure during the dark phase of the l/d cycle. For this, adult male Wistar rats were treated with sibutramine (10 mg/kg/d) or vehicle for 15 days during the dark phase of the l/d cycle. Sibutramine treatment decreased final body and reproductive organ weights, as well as serum testosterone levels. Sperm transit time through the epididymis was accelerated, and sperm concentration and motility were diminished in the sibutramine-exposed rats. The decrease in sperm concentration was also verified in the epididymal histological sections. In conclusion, the deleterious effects of sibutramine on reproductive parameters of male rats were enhanced when the exposure occurred in the dark phase of the l/d cycle, even after a short exposure duration. Our results reinforce the impact of timing on drug therapeutic action.
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Affiliation(s)
- Cibele S Borges
- Department of Structural and Functional Biology, Institute of Biosciences, UNESP - São Paulo State University, Botucatu, Brazil
| | - Patrícia V Silva
- Department of Structural and Functional Biology, Institute of Biosciences, UNESP - São Paulo State University, Botucatu, Brazil
| | - Ana Flávia Q Lozano
- Department of Structural and Functional Biology, Institute of Biosciences, UNESP - São Paulo State University, Botucatu, Brazil
| | - Gabriela Missassi
- Department of Structural and Functional Biology, Institute of Biosciences, UNESP - São Paulo State University, Botucatu, Brazil
| | - Raquel F Silva
- Department of Structural and Functional Biology, Institute of Biosciences, UNESP - São Paulo State University, Botucatu, Brazil
| | - Janete A Anselmo-Franci
- Department of Morphology, Stomatology and Physiology, USP - University of São Paulo, Ribeirão Preto, Brazil
| | - Wilma G Kempinas
- Department of Structural and Functional Biology, Institute of Biosciences, UNESP - São Paulo State University, Botucatu, Brazil
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E Silva PV, Borges CDS, Rosa JDL, Pacheco TL, Figueiredo TM, Leite GAA, Guerra MT, Anselmo-Franci JA, Klinefelter GR, Kempinas WDG. Effects of isolated or combined exposure to sibutramine and rosuvastatin on reproductive parameters of adult male rats. J Appl Toxicol 2020; 40:947-964. [PMID: 32072669 DOI: 10.1002/jat.3955] [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: 07/01/2019] [Revised: 01/13/2020] [Accepted: 01/26/2020] [Indexed: 01/23/2023]
Abstract
Many obese patients are exposed to hypolipidemic and serotonin-norepinephrine reuptake inhibitor (SNRI) drugs. Statins are one of the most marketed drugs in the world to treat dyslipidemia, while sibutramine, a SNRI drug, is prescribed in some countries to treat obesity and is detected as an additive in many adulterated weight loss supplements marketed worldwide. Previous studies reported adverse effects of isolated exposure to these drugs on male rat reproductive parameters. In the present work, we further investigated male reproductive toxicity of these drugs, administered in isolation or combination in adult rats for a longer period of treatment. Adult male rats (90 days) were treated (gavage) for 70 days with saline and dimethyl sulfoxide (control), sibutramine (10 mg/kg), rosuvastatin (5 mg/kg), or rosuvastatin combined with sibutramine. Sibutramine alone or with rosuvastatin, promoted a reduction in food intake and body weight gain, weight of the epididymis, ventral prostate and seminal vesicle; as well as decreased sperm reserves and transit time through the epididymis; androgen depletion; and increased index of cytoplasmic droplet. The rosuvastatin-treated group showed reduced frequency of ejaculation. Exposure to this drug alone or combined with sibutramine impaired epididymal morphology. Co-exposed rats had altered epididymal morphometry, and seminal vesicle and testis weights. The rats also showed decreased fertility after natural mating and a trend toward a delay in ejaculation, suggesting a small synergistic effect of these drugs. Given the greater reproductive efficiency of rodents, the results obtained in the present study raise concern regarding possible fertility impairment in men taking statins and SNRI drugs.
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Affiliation(s)
- Patrícia Villela E Silva
- Department of Morphology, Institute of Biosciences, São Paulo State University - UNESP, Botucatu, SP, Brazil
| | - Cibele Dos Santos Borges
- Department of Morphology, Institute of Biosciences, São Paulo State University - UNESP, Botucatu, SP, Brazil
| | - Josiane de Lima Rosa
- Department of Morphology, Institute of Biosciences, São Paulo State University - UNESP, Botucatu, SP, Brazil
| | - Tainá Louise Pacheco
- Department of Morphology, Institute of Biosciences, São Paulo State University - UNESP, Botucatu, SP, Brazil
| | - Thamiris Moreira Figueiredo
- Department of Morphology, Institute of Biosciences, São Paulo State University - UNESP, Botucatu, SP, Brazil
| | - Gabriel Adan Araújo Leite
- Graduate Program in Cell and Structural Biology, Institute of Biology, State University of Campinas - UNICAMP, Campinas, SP, Brazil
| | - Marina Trevizan Guerra
- Department of Morphology, Institute of Biosciences, São Paulo State University - UNESP, Botucatu, SP, Brazil
| | - Janete Aparecida Anselmo-Franci
- Department of Morphology, Physiology and Basic Pathology, School of Dentistry of Ribeirão Preto, University of São Paulo - USP, Ribeirão Preto, SP, Brazil
| | - Gary Robert Klinefelter
- Reproductive Toxicity Branch, Toxicity Assessment Division, National Health and Environmental Effects Research Laboratory, Office of Research and Development, US Environmental Protection Agency, North Carolina, USA
| | - Wilma De Grava Kempinas
- Department of Morphology, Institute of Biosciences, São Paulo State University - UNESP, Botucatu, SP, Brazil
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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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Research update and opportunity of non-hormonal male contraception: Histone demethylase KDM5B-based targeting. Pharmacol Res 2019; 141:1-20. [DOI: 10.1016/j.phrs.2018.12.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/22/2018] [Revised: 11/29/2018] [Accepted: 12/09/2018] [Indexed: 12/28/2022]
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Cortés-Rodriguez M, Royo JL, Reyes-Palomares A, Lendínez AM, Ruiz-Galdón M, Reyes-Engel A. Sperm count and motility are quantitatively affected by functional polymorphisms of HTR2A, MAOA and SLC18A. Reprod Biomed Online 2018; 36:560-567. [PMID: 29602729 DOI: 10.1016/j.rbmo.2018.01.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2017] [Revised: 01/10/2018] [Accepted: 01/10/2018] [Indexed: 02/07/2023]
Abstract
Spermatozoa and neurones share similar membrane characteristics and features. Associations of multiple polymorphisms traditionally related to neurotransmission were investigated. Infertile men were grouped into controls with normospermia (n = 182) and idiopathic infertile men with asthenozoospermia (n = 103), and analysed as a case-control study and as a quantitative association of each genotype. Ten neurotransmission-associated genetic variants were mapped by SNP analysis using quantitative polymerase chain reaction with TaqMan probes. Men with HTR2A rs6313 had a higher risk of asthenozoospermia (OR = 2.14; P = 0.04). MAOA rs3788862 G carriers displayed an increased risk of asthenozoospermia (OR = 2.29; P = 0.02). The SLC18A1 rs1390938 G allele was more frequent among such cases (0.75 versus 0.87; P < 0.01 and P < 0.01 for Armitage trend test); for SLC18A1 rs2270641 P = 0.02 (case-control frequency) and P = 0.01 (Armitage trend test). MAOA rs3788862 was correlated with sperm motility (Spearman ρ = 0.14; P = 0.02); SLC18A1 rs1390938 was correlated with sperm count and motility (Spearman ρ = 0.20; P < 0.01). Gene polymorphisms of HTR2A, MAOA and SLC18A1, related to neurotransmission, are individually associated with asthenozoospermia through variation in sperm count and motility, without detectable allelic or genotype interaction.
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Affiliation(s)
- Miriam Cortés-Rodriguez
- Department of Biochemistry, Molecular Biology and Immunology, Faculty of Medicine, University of Malaga, 29071, Malaga, Spain
| | - Jose-Luis Royo
- Department of Biochemistry, Molecular Biology and Immunology, Faculty of Medicine, University of Malaga, 29071, Malaga, Spain
| | - Arturo Reyes-Palomares
- Department of Biochemistry, Molecular Biology and Immunology, Faculty of Medicine, University of Malaga, 29071, Malaga, Spain; Instituto de Fertilidad Clínica Rincón, IVF Laboratory and I+D+i, 29730, Malaga, Spain
| | - Ana M Lendínez
- Department of Biochemistry, Molecular Biology and Immunology, Faculty of Medicine, University of Malaga, 29071, Malaga, Spain; Clinical Laboratories Area, Agencia Sanitaria Costa del Sol, 29603, Marbella, Malaga, Spain
| | - Maximiliano Ruiz-Galdón
- Department of Biochemistry, Molecular Biology and Immunology, Faculty of Medicine, University of Malaga, 29071, Malaga, Spain; Clinical Analysis Service, Virgen de la Victoria University Hospital, 29071, Malaga, Spain
| | - Armando Reyes-Engel
- Department of Biochemistry, Molecular Biology and Immunology, Faculty of Medicine, University of Malaga, 29071, Malaga, Spain.
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Borges CDS, Pacheco TL, da Silva KP, Fernandes FH, Gregory M, Pupo AS, Salvadori DMF, Cyr DG, Kempinas WDG. Betamethasone causes intergenerational reproductive impairment in male rats. Reprod Toxicol 2017; 71:108-117. [DOI: 10.1016/j.reprotox.2017.04.012] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2016] [Revised: 03/27/2017] [Accepted: 04/26/2017] [Indexed: 12/30/2022]
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Romano RM, Gomes SN, Cardoso NCS, Schiessl L, Romano MA, Oliveira CA. New insights for male infertility revealed by alterations in spermatic function and differential testicular expression of thyroid-related genes. Endocrine 2017; 55:607-617. [PMID: 27066791 DOI: 10.1007/s12020-016-0952-3] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2016] [Accepted: 04/02/2016] [Indexed: 12/31/2022]
Abstract
The impact of thyroid hormone (TH) disorders on male reproductive biology has been a controversial issue for many years. Recently, we reported that hypothyroid male rats have a disruption of the seminiferous epithelium, which may compromise spermatogenesis. To improve the understanding of the reproductive pathogenesis of hypothyroidism and hyperthyroidism, male Wistar rats that developed these dysfunctions in adulthood were used as an experimental model. We evaluated the sperm production, reserves, transit time, morphology, and functionality (acrosome integrity, plasma membrane integrity, and mitochondrial activity), and the testicular expression of the TH receptors (Thra1 and Thra2, Thrb1, and Thrb2), deiodinases (Dio2 and Dio3), and the Mct8 transporter (Slc16a2) were assessed by reverse transcription followed by real-time quantitative PCR (RT-qPCR). The results were evaluated statistically by ANOVA and Tukey HSD test (P < 0.05). Hypothyroidism decreased the total and daily sperm productions and increased the sperm transit time through the epididymis, while the sperm functionality was reduced in both thyroid dysfunctions. Regarding the modulation of gene expression in the testis, hypothyroidism increased the expression of Thra1 and decreased the expression of Dio3, and hyperthyroidism increased the expression of Slc16a2. The observed alterations in spermatic production and function and in the expression of the TH receptor, deiodinase, and the TH transporter are suggestive of TH participation in spermatogenesis in adulthood.
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Affiliation(s)
- Renata Marino Romano
- Laboratory of Reproductive Toxicology, Department of Pharmacy, State University of Centro-Oeste, Rua Simeao Camargo Varela de Sa, 03, Guarapuava, Parana, 85040-080, Brazil.
- Department of Animal Reproduction, Faculty of Veterinary Medicine, University of Sao Paulo, Av. Prof. Dr. Orlando Marques de Paiva, 87, Sao Paulo, 05508-270, Brazil.
| | - Samantha Nascimento Gomes
- Laboratory of Reproductive Toxicology, Department of Pharmacy, State University of Centro-Oeste, Rua Simeao Camargo Varela de Sa, 03, Guarapuava, Parana, 85040-080, Brazil
| | - Nathalia Carolina Scandolara Cardoso
- Laboratory of Reproductive Toxicology, Department of Pharmacy, State University of Centro-Oeste, Rua Simeao Camargo Varela de Sa, 03, Guarapuava, Parana, 85040-080, Brazil
| | - Larissa Schiessl
- Laboratory of Reproductive Toxicology, Department of Pharmacy, State University of Centro-Oeste, Rua Simeao Camargo Varela de Sa, 03, Guarapuava, Parana, 85040-080, Brazil
| | - Marco Aurelio Romano
- Laboratory of Reproductive Toxicology, Department of Pharmacy, State University of Centro-Oeste, Rua Simeao Camargo Varela de Sa, 03, Guarapuava, Parana, 85040-080, Brazil
| | - Claudio Alvarenga Oliveira
- Department of Animal Reproduction, Faculty of Veterinary Medicine, University of Sao Paulo, Av. Prof. Dr. Orlando Marques de Paiva, 87, Sao Paulo, 05508-270, Brazil
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Rosa F, Négrier P, Espeau P. Racemic compound and conglomerate of anhydrous sibutramine hydrochloride: a rare case of relative stability. CrystEngComm 2016. [DOI: 10.1039/c6ce01123c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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The Coadministration of N-Acetylcysteine Ameliorates the Effects of Arsenic Trioxide on the Male Mouse Genital System. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2015; 2016:4257498. [PMID: 26839632 PMCID: PMC4709715 DOI: 10.1155/2016/4257498] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/04/2015] [Accepted: 09/30/2015] [Indexed: 12/11/2022]
Abstract
Arsenic trioxide (As2O3) has shown effectiveness in treatment of leukemia but is also associated with reproductive toxicity. Since remediation with N-acetylcysteine (NAC) may mitigate the adverse effects caused by exposure, we assessed the effects of As2O3 and its potential reversibility after exposure cessation or coadministration of NAC. Animals received 0.3 or 3.0 mg/Kg/day of As2O3 subcutaneously and 40 mM of NAC in tap water. As2O3 treatment impaired spermatogenesis and sperm motility and decreased seminal vesicle weight and testosterone serum levels; after suspension of treatment, these parameters remained altered. When NAC was administered, animals showed improvement in sperm parameters and seminal vesicle weight. In vitro epididymal contractility was increased in As2O3-treated animals. We concluded that As2O3 is toxic to the male mouse genital system by compromising sperm quality and quantity; these effects persisted even after suspension of the treatment. However, the coadministration of NAC ameliorates the harmful effects of the drug on the male genital system.
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Cavariani MM, de Almeida Kiguti LR, de Lima Rosa J, de Araújo Leite GA, Silva PVE, Pupo AS, De Grava Kempinas W. Bupropion treatment increases epididymal contractility and impairs sperm quality with no effects on the epididymal sperm transit time of male rats. J Appl Toxicol 2015; 35:1007-16. [PMID: 25645087 DOI: 10.1002/jat.3089] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2014] [Revised: 10/06/2014] [Accepted: 10/07/2014] [Indexed: 11/09/2022]
Abstract
Bupropion is a dopamine (DA) and norepinephrine (NE) reuptake inhibitor used as smoking cessation and antidepressant drug with a lower incidence of male sexual dysfunction. We showed previously that sibutramine, a norepinephrine/serotonine reuptake inhibitor, reduced male rat fertility. As there are no studies evaluating the impact of bupropion treatment on spermatic parameters and male fertility, we evaluated the effects of bupropion treatment (15 and 30 mg kg(-1), 30 days) on sexual behavior, spermatic parameters and fertility of male Wistar rats and on the epididymal duct in vitro contractility. Bupropion 15 mg kg(-1) increased the serum luteinizing hormone level and the epididymal duct contractility, but the sperm quality was not affected. At 30 mg kg(-1) bupropion impaired sperm quality increasing the incidence of non-progressive sperm. The male sexual behavior and fertility were not modified at both bupropion doses. These results, in rats, suggest the importance of studies evaluating the effects of bupropion on the human male sperm quality.
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Affiliation(s)
- Marilia Martins Cavariani
- Department of Morphology, Institute of Biosciences, UNESP - Univ. Estadual Paulista, Botucatu, São Paulo, Brazil
| | | | - Josiane de Lima Rosa
- Department of Morphology, Institute of Biosciences, UNESP - Univ. Estadual Paulista, Botucatu, São Paulo, Brazil
| | - Gabriel Adan de Araújo Leite
- Department of Morphology, Institute of Biosciences, UNESP - Univ. Estadual Paulista, Botucatu, São Paulo, Brazil
| | - Patrícia Villela E Silva
- Department of Morphology, Institute of Biosciences, UNESP - Univ. Estadual Paulista, Botucatu, São Paulo, Brazil
| | - André Sampaio Pupo
- Department of Pharmacology, Institute of Biosciences, UNESP - Univ. Estadual Paulista, Botucatu, São Paulo, Brazil
| | - Wilma De Grava Kempinas
- Department of Morphology, Institute of Biosciences, UNESP - Univ. Estadual Paulista, Botucatu, São Paulo, Brazil
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De Grava Kempinas W, Klinefelter GR. Interpreting histopathology in the epididymis. SPERMATOGENESIS 2015; 4:e979114. [PMID: 26413396 DOI: 10.4161/21565562.2014.979114] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 10/01/2014] [Accepted: 10/16/2014] [Indexed: 11/19/2022]
Abstract
While most of this Special Issue is devoted to the testis (which is where most drug and chemically induced toxicity of the male reproductive tract is identified), being able to recognize and understand the potential effects of toxicants on the epididymis is immensely important and an area that is often overlooked. The epididymis is the organ where the post-testicular sperm differentiation occurs, through a complex and still not completely understood sperm maturation process, allowing them to fertilize the oocyte. Also in the epididymis, sperm are stored until ejaculation, while being protected from immunogenic reaction by a blood-epididymis barrier. From a toxicologic perspective the epididymis is inherently complicated as its structure and function can be altered both indirectly and directly. In this review we will discuss the factors that must be considered when attempting to distinguish between indirect and direct epididymal toxicity and highlight what is currently known about mechanisms of epididymal toxicants, using the rat as a reference model. We identify 2 distinguishable signature lesions - one representing androgen deprivation (secondary to Leydig cell toxicity in the testis) and another representing a direct acting toxicant. Other commonly observed alterations will also be shown and discussed. Finally, we point out that many of the key functions of the epididymis can be altered in the absence of a detectable change in tissue structure. Collectively, we hope this will provide pathologists with increased confidence in identification of epididymal toxicity and enable more informed guidance as mechanism of action is considered.
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Affiliation(s)
- Wilma De Grava Kempinas
- Department of Morphology; Institute of Biosciences; UNESP Univ Estadual Paulista ; Botucatu, Brazil
| | - Gary Robert Klinefelter
- National Health and Environmental Research Laboratory; Reproductive Toxicology Division; US Environmental Protection Agency ; Research Triangle Park, NC USA
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da Silva ED, de Souza BP, Vilela VV, Rodrigues JQD, Nichi M, de Agostini Losano JD, Dalmazzo A, Barnabe VH, Jurkiewicz A, Jurkiewicz NH. Epididymal contraction and sperm parameters are affected by clonidine. Andrology 2014; 2:955-66. [DOI: 10.1111/andr.283] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2014] [Revised: 08/14/2014] [Accepted: 09/02/2014] [Indexed: 11/28/2022]
Affiliation(s)
- E. D. da Silva
- Department of Pharmacology; Mechanism of Drug Action Laboratory; Federal University of São Paulo (UNIFESP); São Paulo Brazil
| | - B. P. de Souza
- Department of Pharmacology; Mechanism of Drug Action Laboratory; Federal University of São Paulo (UNIFESP); São Paulo Brazil
| | - V. V. Vilela
- Department of Morphology and Genetics; Developmental Biology Laboratory; Federal University of São Paulo (UNIFESP); São Paulo Brazil
| | - J. Q. D. Rodrigues
- Department of Pharmacology; Mechanism of Drug Action Laboratory; Federal University of São Paulo (UNIFESP); São Paulo Brazil
| | - M. Nichi
- Department of Animal Reproduction; Faculty of Veterinary Medicine and Animal Science (FMVZ); University of São Paulo (USP); São Paulo Brazil
| | - J. D. de Agostini Losano
- Department of Animal Reproduction; Faculty of Veterinary Medicine and Animal Science (FMVZ); University of São Paulo (USP); São Paulo Brazil
| | - A. Dalmazzo
- Department of Animal Reproduction; Faculty of Veterinary Medicine and Animal Science (FMVZ); University of São Paulo (USP); São Paulo Brazil
| | - V. H. Barnabe
- Department of Animal Reproduction; Faculty of Veterinary Medicine and Animal Science (FMVZ); University of São Paulo (USP); São Paulo Brazil
| | - A. Jurkiewicz
- Department of Pharmacology; Mechanism of Drug Action Laboratory; Federal University of São Paulo (UNIFESP); São Paulo Brazil
| | - N. H. Jurkiewicz
- Department of Pharmacology; Mechanism of Drug Action Laboratory; Federal University of São Paulo (UNIFESP); São Paulo Brazil
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Influence of acute treatment with sibutramine on the sympathetic neurotransmission of the young rat vas deferens. Eur J Pharmacol 2014; 738:118-24. [PMID: 24886880 DOI: 10.1016/j.ejphar.2014.05.035] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2014] [Revised: 05/07/2014] [Accepted: 05/19/2014] [Indexed: 11/21/2022]
Abstract
The effects of acute treatment with sibutramine on the peripheral sympathetic neurotransmission in vas deferens of young rats were still not evaluated. Therefore, we carried out this study in order to verify the effects of acute sibutramine treatment on the neuronal- and exogenous agonist-induced contractions of the young rat vas deferens. Young 45-day-old male Wistar rats were pretreated with sibutramine 6 mg/kg and after 4h the vas deferens was used for experiment. The acute treatment with sibutramine was able to increase the potency (pD2) of noradrenaline and phenylephrine. Moreover, the efficacy (Emax) of noradrenaline was increased while the efficacy of serotonin and nicotine were decreased. The maximum effect induced by a single concentration of tyramine was diminished in the vas deferens from treated group. Moreover, the leftward shift of the noradrenaline curves promoted by uptake blockers (cocaine and corticosterone) and β-adrenoceptor antagonist (propranolol) was reduced in the vas deferens of treated group. The initial phasic and secondary tonic components of the neuronal-evoked contractions of vas deferens from treated group at the frequencies of 2 Hz were decreased. Moreover, only the initial phasic component at 5 Hz was diminished by the acute treatment with sibutramine. In conclusion, we showed that the acute treatment with sibutramine in young rats was able to affect the peripheral sympathetic nervous system by inhibition of noradrenaline uptake and reduction of the neuronal content of this neurotransmitter, leading to an enhancement of vas deferens sensitivity to noradrenaline.
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