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The Molecular Quality and Mitochondrial Activity of Porcine Cumulus-Oocyte Complexes Are Affected by Their Exposure to Three Endocrine-Active Compounds under 3D In Vitro Maturation Conditions. Int J Mol Sci 2022; 23:ijms23094572. [PMID: 35562963 PMCID: PMC9100547 DOI: 10.3390/ijms23094572] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Revised: 04/12/2022] [Accepted: 04/19/2022] [Indexed: 12/15/2022] Open
Abstract
Thus far, the potential short- and long-term detrimental effects of a variety of environmental chemicals designated as endocrine-active compounds (EACs) have been found to interfere with histo- and anatomo-physiological functions of the reproductive system in humans and wildlife species. For those reasons, this study sought to examine whether selected EACs, which encompass the fungicide vinclozolin (Vnz), the androgenic anabolic steroid nandrolone (Ndn) and the immunosuppressant cyclosporin A (CsA), affect the developmental competence and molecular quality (MQ) of porcine cumulus–oocyte complexes (COCs) subjected to in vitro maturation (IVM) under 3D culture conditions. The COCs underwent 3D-IVM in the presence of Vnz, Ndn or CsA for 48 h. To explore whether the selected EACs induce internucleosomal DNA fragmentation in cumulus cells (CCs), TUNEL-assisted detection of late apoptotic cells was performed. Additionally, for the detailed evaluation of pro- and antiapoptotic pathways in COCs, apoptosis proteome profiler arrays were used. To determine changes in intracellular metabolism in COCs, comprehensive assessments of mitochondrial ultrastructure and activity were carried out. Moreover, the relative abundances (RAs) of mRNAs transcribed from genes that are involved in scavenging reactive oxygen species (ROS), such as SIRT3 and FOXO3, and intramitochondrial bioenergetic balance, such as ATP synthase subunit (ATP5A1), were ascertained. Finally, to investigate the extent of progression of oocyte maturation, the intraooplasmic levels of cAMP and the RAs of mRNA transcripts encoding regulatory and biocatalytic subunits of a heterodimeric meiosis-promoting factor, termed cyclin B1 (CCNB1) and cyclin-dependent kinase 1 (CDC2), were also estimated. The obtained results provide, for the first time, strong evidence that both Vnz and Ndn decrease the developmental competence of oocytes and stimulate apoptosis processes in CCs. The present study is also the first to highlight that Vnz accelerates the maturation process in immature oocytes due to both increased ROS production and the augmented RA of the CCNB1 gene. Furthermore, Vnz was proven to trigger proapoptotic events in CCs by prompting the activity of the FOXO3 transcription factor, which regulates the mitochondrial apoptosis pathway. In turn, Ndn was shown to inhibit oocyte maturation by inducing molecular events that ultimately lead to an increase in the intraooplasmic cAMP concentration. However, due to the simultaneous enhancement of the expression of TNF-β and HSP27 proteins in CCs, Ndn might be responsible for the onset of their neoplastic transformation. Finally, our current investigation is the first to clearly demonstrate that although CsA did not interfere with the nuclear and cytoplasmic maturation of oocytes, by inducing mitophagy in CCs, it disrupted oocyte metabolism, consequently attenuating the parameters related to the MQ of COCs. Summing up, Vnz, Ndn and CsA reduced not only the processes of growth and IVM but also the MQ of porcine COCs, which might make them unsuitable for assisted reproductive technologies (ARTs) such as in vitro fertilization by either gamete co-incubation or intracytoplasmic sperm injection (ICSI) and cloning by somatic cell nuclear transfer (SCNT).
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Gomes FDC, Chuffa LGDA, Fávaro WJ, Scarano WR, Melo‐Neto JS, Pinheiro PFF, Domeniconi RF. Nandrolone decanoate and resistance exercise affect prostate morphology and hormone receptor interface in adult rats with implications for the aging process. Andrology 2019; 8:211-220. [DOI: 10.1111/andr.12626] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2018] [Revised: 03/09/2019] [Accepted: 03/18/2019] [Indexed: 12/13/2022]
Affiliation(s)
- F. de C. Gomes
- Department of Anatomy Institute of Biosciences University of Estadual Paulista (UNESP) Botucatu SP Brazil
- Genetics and Molecular Biology Research Unit (UPGEM) São José do Rio Preto Medical School (FAMERP) São José do Rio Preto SP Brasil
| | - L. G. de A. Chuffa
- Department of Anatomy Institute of Biosciences University of Estadual Paulista (UNESP) Botucatu SP Brazil
| | - W. J. Fávaro
- Department of Structural and Functional Biology Institute of Biology University of Campinas (UNICAMP) Campinas SP Brazil
| | - W. R. Scarano
- Department of Morphology Institute of Biosciences University of Estadual Paulista (UNESP) Botucatu SP Brazil
| | - J. S. Melo‐Neto
- Faculty of Medicine of Marília (FAMEMA) Marília SP Brazil
- Institute of Health Sciences Federal University of Pará (UFPA) Belém PA Brazil
| | - P. F. F. Pinheiro
- Department of Anatomy Institute of Biosciences University of Estadual Paulista (UNESP) Botucatu SP Brazil
| | - R. F. Domeniconi
- Department of Anatomy Institute of Biosciences University of Estadual Paulista (UNESP) Botucatu SP Brazil
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Shalaby AM, Bahey NG. Reversal of the hepatic damage induced by the supraphysiological dose of nandrolone decanoate after its withdrawal in the adult male rat. Tissue Cell 2018; 53:44-52. [DOI: 10.1016/j.tice.2018.05.013] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2018] [Revised: 05/22/2018] [Accepted: 05/23/2018] [Indexed: 12/25/2022]
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Min T, Lee KH. Effects of nandrolone decanoate on expression of steroidogenic enzymes in the rat testis. ASIAN-AUSTRALASIAN JOURNAL OF ANIMAL SCIENCES 2018. [PMID: 29514442 PMCID: PMC5930276 DOI: 10.5713/ajas.17.0899] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Objective Nandrolone decanoate (ND) is an anabolic-androgenic steroid frequently used for clinical treatment. However, the inappropriate use of ND results in the reduction of serum testosterone level and sperm production. The suppressive effect of ND on testosterone production has not been investigated in detail. The present study was designed to examine the effect of ND on the expression of steroidogenic enzymes in the rat testis. Methods Male Sprague Dawley rats at 50 days of age were subcutaneously administrated with either 2 or 10 mg of ND/kg body weight/week for 2 or 12 weeks. The changes of transcript and protein levels of steroidogenic enzymes in the testis were determined by real-time polymerase chain reaction and western blotting analyses, respectively. Moreover, immunohistochemical analysis was employed to determine the changes of immunostaining intensity of these enzymes. The steroidogenic enzymes investigated were steroidogenic acute regulatory protein, cytochrome P450 side chain cleavage enzyme, 17α-hydroxylase, 3β-hydroxysteroid dehydrogenase, and cytochrome P450 aromatase. Results The treatment of ND resulted in depletion of Leydig cells and sloughing of germ cells in the testis. The ND treatment caused significant expressional decreases of steroidogenic enzymes at transcript and protein levels, and the destructive effects of ND on the testis were more apparent with a higher dose and a longer period of the treatment. Evident reduction of immunostaining intensity present in Leydig cells was clearly detected by the ND treatment. Conclusion The exposure to ND in young male results not only in histological changes of the testis but also in aberrant gene expression of testicular steroidogenic enzymes, consequently leading into the reduction of testosterone production in the testis and thus likely disruption of spermatogenesis.
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Affiliation(s)
- TaeSun Min
- Faculty of Biotechnology, SARI, Jeju National University, Jeju 63243, Korea
| | - Ki-Ho Lee
- Department of Biochemistry and Molecular Biology, College of Medicine, Eulji University, Daejeon 34824, Korea
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de Amorim Ribeiro IC, da Costa CAS, da Silva VAP, Côrrea LBNS, Boaventura GT, Chagas MA. Flaxseed reduces epithelial proliferation but does not affect basal cells in induced benign prostatic hyperplasia in rats. Eur J Nutr 2016; 56:1201-1210. [PMID: 26857761 DOI: 10.1007/s00394-016-1169-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2015] [Accepted: 01/29/2016] [Indexed: 02/04/2023]
Abstract
PURPOSE This study aimed to quantitatively and qualitatively evaluate the effects of a flaxseed-based diet on the histoarchitecture of the prostate of normal Wistar rats and of rats with induced BPH. METHODS The study included four experimental groups of ten animals each: casein control group (CCG), who were fed a casein-based diet; flaxseed control group (FCG), who were fed a flaxseed-based diet; hyperplasia-induced casein group (HICG), who were fed a casein-based diet; and hyperplasia-induced flaxseed group (HIFG), who were fed a flaxseed-based diet. Hyperplasia was induced by the subcutaneous implantation of silicone pellets containing testosterone propionate. After 20 weeks, the rats were euthanized and their prostate fixed in buffered formalin. Tissue sections were stained with HE, picrosirius red and immunostained for nuclear antigen p63. Histomorphometric analysis evaluated the epithelial thickness, epithelial area, individual luminal area, and total area of prostatic alveoli. RESULTS The mean epithelial thickness obtained for HIFG and HICG was 16.52 ± 1.65 and 20.58 ± 2.86 µm, respectively. The mean epithelial thickness in HICG was greater than that in the other groups tested. HIFG had a smaller epithelial thickness and lower percentage of papillary projections in the prostatic alveoli. No significant difference was observed between CCG and FCG. The total area and mean alveolar area showed no significant differences between the groups. The number of cells immunostained for p63 was not significantly different between the groups evaluated. CONCLUSION These results suggest that flaxseed has a protective effect on the prostate epithelium in BPH-induced animals.
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Affiliation(s)
- Ilma Cely de Amorim Ribeiro
- Department of Morphology, Laboratory of Cellular and Extracellular Biomorphology Biomedic Institute, Federal Fluminense University, Rua Hernani Melo, 101, São Domingos, Niterói, Rio de Janeiro, RJ, 24210-130, Brazil
| | - Carlos Alberto Soares da Costa
- Department of Nutrition and Dietetics, Experimental Nutrition Laboratory, College of Nutrition, Federal Fluminense University, 30/5th floor, Rio de Janeiro, 24020-140, Brazil
| | - Vivian Alves Pereira da Silva
- Department of Morphology, Laboratory of Cellular and Extracellular Biomorphology Biomedic Institute, Federal Fluminense University, Rua Hernani Melo, 101, São Domingos, Niterói, Rio de Janeiro, RJ, 24210-130, Brazil
| | - Lanna Beatriz Neves Silva Côrrea
- Department of Morphology, Laboratory of Cellular and Extracellular Biomorphology Biomedic Institute, Federal Fluminense University, Rua Hernani Melo, 101, São Domingos, Niterói, Rio de Janeiro, RJ, 24210-130, Brazil
| | - Gilson Teles Boaventura
- Department of Nutrition and Dietetics, Experimental Nutrition Laboratory, College of Nutrition, Federal Fluminense University, 30/5th floor, Rio de Janeiro, 24020-140, Brazil
| | - Mauricio Alves Chagas
- Department of Morphology, Laboratory of Cellular and Extracellular Biomorphology Biomedic Institute, Federal Fluminense University, Rua Hernani Melo, 101, São Domingos, Niterói, Rio de Janeiro, RJ, 24210-130, Brazil.
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Simão VA, Berloffa Belardin L, Araújo Leite GA, de Almeida Chuffa LG, Camargo ICC. Effects of different doses of nandrolone decanoate on estrous cycle and ovarian tissue of rats after treatment and recovery periods. Int J Exp Pathol 2015; 96:338-49. [PMID: 26575430 DOI: 10.1111/iep.12144] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2015] [Accepted: 07/22/2015] [Indexed: 01/17/2023] Open
Abstract
This study tested the hypothesis that different doses of nandrolone decanoate (ND) will cause changes in the estrous cycle and ovarian tissue of adult rats; and investigated the duration of the recovery period that is sufficient to restore the damage in the animals treated with different doses. Wistar rats were treated with ND at doses of 1.87, 3.75, 7.5 and 15 mg/kg body weight, or received mineral oil (control group) for 15 days, subcutaneously. All animals were divided into three groups according to the treatment periods: (i) ND treatment for 15 days; (ii) ND treatment followed by a 30-day recovery; and (iii) ND treatment followed by a 60-day recovery. Estrous cycle was monitored daily, and at the end of each period, the animals were euthanized for histopathological analysis. During ND treatment and after 30-day recovery, all animals exhibited persistent diestrus. After a 60-day recovery, persistent diestrus was only maintained in the group that had received the highest dose. Ovarian weight was decreased significantly after the 30-day recovery, regardless of ND doses, compared with the control group. There was a reduction (P < 0.05) in the number of corpora lutea and antral and growing follicles, in contrast to an increase (P < 0.05) in atretic follicles in a dose- and time-dependent manner. Remarkable histopathological changes occurred in the ovaries of all ND-treated groups. In conclusion, the different doses of ND caused changes in the estrous cycle and ovarian tissue of rats, and recovery periods (30 and 60 days) were insufficient to completely restore the damage in the animals treated with the highest dose.
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Affiliation(s)
- Vinícius Augusto Simão
- Department of Biological Sciences, Faculty of Sciences and Letters, Univ Estadual Paulista - UNESP, Assis, Brazil
| | - Larissa Berloffa Belardin
- Department of Biological Sciences, Faculty of Sciences and Letters, Univ Estadual Paulista - UNESP, Assis, Brazil
| | - Gabriel Adan Araújo Leite
- Department of Biological Sciences, Faculty of Sciences and Letters, Univ Estadual Paulista - UNESP, Assis, Brazil
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Brasil GA, Lima EMD, Nascimento AMD, Caliman IF, Medeiros ARSD, Silva MSB, Abreu GRD, Reis AMD, Andrade TUD, Bissoli NS. Nandrolone decanoate induces cardiac and renal remodeling in female rats, without modification in physiological parameters: The role of ANP system. Life Sci 2015; 137:65-73. [DOI: 10.1016/j.lfs.2015.07.005] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2015] [Revised: 05/28/2015] [Accepted: 07/03/2015] [Indexed: 11/26/2022]
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de Melo Neto JS, de Campos Gomes F, Pinheiro PFF, Pereira S, Scarano WR, Fávaro WJ, Domeniconi RF. The effects of high doses of nandrolone decanoate and exercise on prostate microvasculature of adult and older rats. Life Sci 2015; 121:16-21. [DOI: 10.1016/j.lfs.2014.11.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2014] [Revised: 10/06/2014] [Accepted: 11/05/2014] [Indexed: 11/25/2022]
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Belardin LB, Simão VA, Leite GAA, Chuffa LGDA, Camargo ICC. Dose-Dependent Effects and Reversibility of the Injuries Caused by Nandrolone Decanoate in Uterine Tissue and Fertility of Rats. ACTA ACUST UNITED AC 2014; 101:168-77. [DOI: 10.1002/bdrb.21104] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2013] [Revised: 01/24/2014] [Accepted: 01/26/2014] [Indexed: 11/07/2022]
Affiliation(s)
- Larissa Berloffa Belardin
- Faculty of Sciences and Letters; Department of Biological Sciences; Univ Estadual Paulista-UNESP; Assis São Paulo Brazil
| | - Vinícius Augusto Simão
- Faculty of Sciences and Letters; Department of Biological Sciences; Univ Estadual Paulista-UNESP; Assis São Paulo Brazil
| | - Gabriel Adan Araújo Leite
- Faculty of Sciences and Letters; Department of Biological Sciences; Univ Estadual Paulista-UNESP; Assis São Paulo Brazil
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Vargas RA, Oliveira LP, Frankenfeld S, Souza DBD, Costa WS, Favorito LA, Sampaio FJB. The prostate after administration of anabolic androgenic steroids: a morphometrical study in rats. Int Braz J Urol 2013; 39:675-82. [DOI: 10.1590/s1677-5538.ibju.2013.05.10] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2013] [Accepted: 07/25/2013] [Indexed: 11/22/2022] Open
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Uggere de Andrade T, Loiola LZ, Alcure SMN, Medeiros ARS, Santos MCLFS, Moysés MR, Abreu GRD, Lenz D, Bissoli NS. Role of the renin–angiotensin system in the nandrolone-decanoate-induced attenuation of the Bezold–Jarisch reflex. Can J Physiol Pharmacol 2011; 89:891-7. [DOI: 10.1139/y11-090] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The androgen nandrolone decanoate (ND) is known to cause cardiovascular abnormalities, such as attenuation of the Bezold–Jarisch Reflex (BJR), cardiac hypertrophy, and elevation of mean arterial pressure (MAP). Futhermore, a relationship between androgens and the renin–angiotensin system (RAS) has been reported. The purpose of this study was to evaluate the influence of RAS on the BJR, cardiac and prostatic hypertrophy, and MAP evoked by ND. For this, male Wistar rats were treated with ND (10 mg·(kg body mass)–1 for 8 weeks; DECA), or vehicle (control animals; CON), or enalapril (10 mg·(kg body mass)–1, daily; CONE), or ND and enalapril (10 mg ND + 10 mg enalapril per kilogram of body mass; DECAE). After 8 weeks of treatment, the BJR was evaluated by bradycardia and hypotensive responses that were elicited by serotonin administration (2–32 µg·(kg body mass)–1). MAP was assessed; cardiac and prostate hypertrophy were determined by the ratio of the tissue mass:body mass, and by histological analysis of the heart. Animals from the DECA group showed prostatic and cardiac hypertrophy, elevation in mean arterial pressure, and an impairment of BJR. Co-treatment with enalapril inhibited these changes. The data from the present study suggest that RAS has an impact on BJR attenuation, cardiac and prostatic hypertrophy, and the elevation in MAP evoked by ND.
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Affiliation(s)
| | - Leonardo Zanoteli Loiola
- Department of Physiological Sciences, Health Sciences Center, Federal University of Espírito Santo, Avenida Marechal Campos, 1468, Vitória, ES 29042-755, Brazil
| | | | - Ana Raquel Santos Medeiros
- Department of Physiological Sciences, Health Sciences Center, Federal University of Espírito Santo, Avenida Marechal Campos, 1468, Vitória, ES 29042-755, Brazil
| | | | - Margareth Ribeiro Moysés
- Department of Physiological Sciences, Health Sciences Center, Federal University of Espírito Santo, Avenida Marechal Campos, 1468, Vitória, ES 29042-755, Brazil
| | - Gláucia Rodrigues de Abreu
- Department of Physiological Sciences, Health Sciences Center, Federal University of Espírito Santo, Avenida Marechal Campos, 1468, Vitória, ES 29042-755, Brazil
| | - Dominik Lenz
- Department of Pharmacy, University Center of Vila Velha, Espírito Santo, Brazil
| | - Nazaré Souza Bissoli
- Department of Physiological Sciences, Health Sciences Center, Federal University of Espírito Santo, Avenida Marechal Campos, 1468, Vitória, ES 29042-755, Brazil
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Graceli JB, Gava PL, Gomes HL, Moscon LM, Endlich PW, Gonçalves WLS, Moysés MR. Uso crônico de decanoato de nandrolona como fator de risco para hipertensão arterial pulmonar em ratos Wistar. REV BRAS MED ESPORTE 2010. [DOI: 10.1590/s1517-86922010000100009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
INTRODUÇÃO: O uso indiscriminado de esteróides anabolizantes sintéticos, análogos à testosterona, implica aumento do risco cardiovascular e hipertrofia cardíaca. Assim, o aumento da massa ventricular direita corrigido pelo peso corporal (i.é., hipertrofia ventricular direita - HVD), poderia elevar o risco para o desenvolvimento de hipertensão arterial pulmonar (HAP). OBJETIVOS: Examinar os efeitos do tratamento em longo prazo com decanoato de nadrolona na HVD e sua relação com a HAP em ratos. MÉTODOS: 16 ratos Wistar com três meses de idade foram aleatoriamente divididos em dois grupos: 1) controle-sham (CONT, n = 8); 2) tratados com decanoato de nandrolona (DECA, n = 8). O tratamento consistiu na aplicação intramuscular de Deca-durabolin® 6.0mg.kg-1 de peso corporal durante quatro semanas. Após tratamento, os animais foram anestesiados com hidrato de cloral (4.0mL.kg-1, i.p.), submetidos à cateterização da artéria femoral para registro da pressão arterial media (PAM) e frequência cardíaca (FC). O coração, os rins e o fígado foram retirados, pesados e avaliados os índices de hipertrofia, os quais foram calculados pela razão da massa do órgão pelo peso corporal (mg.g-1). RESULTADOS: Os animais tratados com DECA apresentaram aumento (p < 0,01) do peso corporal (338 ± 6g) vs. CONT (315 ± 5g). Não houve alterações da PAM, embora houvesse (p < 0,01) bradicardia nos animais tratados com DECA (321 ± 13bpm) vs. CONT (368 ± 11bpm). Verificou-se significativa (p < 0,01) hipertrofia dos ventrículos e rins, mas não no fígado. A correlação entre a HVD e PAM no grupo DECA apresentou coeficiente de Pearson positivo e maior (r² = 0,4013) quando comparado com o controle (r² = 0,0003). CONCLUSÕES: Esses dados demonstram que o uso em longo prazo de decanoato de nandrolona induz importante bradicardia e HVD, o que sugere aumento do risco para HAP.
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Karbalay-Doust S, Noorafshan A, Ardekani FM, Mirkhani H. The reversibility of sperm quality after discontinuing nandrolone decanoate in adult male rats. Asian J Androl 2007; 9:235-9. [PMID: 16855768 DOI: 10.1111/j.1745-7262.2007.00203.x] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
AIM To investigate the reversibility of the effect of nandrolone decanoate (ND) on sperm parameters after discontinuing the drug. METHODS Three groups of rats received peanut oil (control), low and high doses of ND for 14 weeks, respectively. Each group was divided into subgroups A and B, in which rats were killed 14 and 28 weeks after initiating the injection, respectively. RESULTS Sperm count and motile sperm fraction were decreased in the subgroups A and B that received low and high doses of ND in comparison with the controls A and B, respectively. The sperm count and motile sperm fraction increased in the subgroups B that received low and high doses of ND in comparison with their corresponding subgroups A. The number of normal morphology sperm was decreased significantly in subgroups A receiving low and high doses of ND in comparison with the control subgroup A. However, this parameter was not decreased in subgroups B receiving low and high doses in comparison with the control subgroup B. The normal sperm morphology did not show any significant differences in the subgroups B in comparison with their corresponding subgroups A. CONCLUSION The 14-week injection of low and high doses of ND decreases sperm quality and quantity in rats. These parameters were improved after discontinuing ND, but not recovered completely even when they are left untreated for 14 weeks.
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Affiliation(s)
- Saied Karbalay-Doust
- Anatomy Department, Shiraz University of Medical Sciences, Zand Avenue, Shiraz, 71348-45794, Iran.
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