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Golizeh M, Nam J, Chatelain E, Jackson Y, Ohlund LB, Rasoolizadeh A, Camargo FV, Mahrouche L, Furtos A, Sleno L, Ndao M. New metabolic signature for Chagas disease reveals sex steroid perturbation in humans and mice. Heliyon 2022; 8:e12380. [PMID: 36590505 PMCID: PMC9800200 DOI: 10.1016/j.heliyon.2022.e12380] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Revised: 05/29/2022] [Accepted: 12/07/2022] [Indexed: 12/23/2022] Open
Abstract
The causative agent of Chagas disease (CD), Trypanosoma cruzi, claims thousands of lives each year. Current diagnostic tools are insufficient to ensure parasitological detection in chronically infected patients has been achieved. A host-derived metabolic signature able to distinguish CD patients from uninfected individuals and assess antiparasitic treatment efficiency is introduced. Serum samples were collected from chronic CD patients, prior to and three years after treatment, and subjected to untargeted metabolomics analysis against demographically matched CD-negative controls. Five metabolites were confirmed by high-resolution tandem mass spectrometry. Several database matches for sex steroids were significantly altered in CD patients. A murine experiment corroborated sex steroid perturbation in T. cruzi-infected mice, particularly in male animals. Proteomics analysis also found increased steroidogenesis in the testes of infected mice. Metabolic alterations identified in this study shed light on the pathogenesis and provide the basis for developing novel assays for the diagnosis and screening of CD patients.
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Affiliation(s)
- Makan Golizeh
- Department of Mathematical and Physical Sciences, Concordia University of Edmonton, Edmonton, Alberta, Canada,National Reference Centre for Parasitology, Research Institute of McGill University Health Centre, Montreal, Quebec, Canada
| | - John Nam
- National Reference Centre for Parasitology, Research Institute of McGill University Health Centre, Montreal, Quebec, Canada,Infectious Diseases and Immunity in Global Health (IDIGH) Program, Research Institute of McGill University Health Centre, Montreal, Quebec, Canada
| | - Eric Chatelain
- Drugs for Neglected Diseases initiative, Geneva, Switzerland
| | - Yves Jackson
- Division of Primary Care Medicine, Geneva University Hospitals and University of Geneva, Geneva, Switzerland
| | - Leanne B. Ohlund
- Chemistry Department, Université du Québec à Montréal, Montreal, Quebec, Canada,Center for Excellence in Research on Orphan Diseases – Fondation Courtois (CERMO-FC), Montreal, Quebec, Canada
| | - Asieh Rasoolizadeh
- National Reference Centre for Parasitology, Research Institute of McGill University Health Centre, Montreal, Quebec, Canada
| | - Fabio Vasquez Camargo
- National Reference Centre for Parasitology, Research Institute of McGill University Health Centre, Montreal, Quebec, Canada
| | - Louiza Mahrouche
- Chemistry Department, Regional Centre for Mass Spectrometry, Université de Montréal, Montreal, Quebec, Canada
| | - Alexandra Furtos
- Chemistry Department, Regional Centre for Mass Spectrometry, Université de Montréal, Montreal, Quebec, Canada
| | - Lekha Sleno
- Chemistry Department, Université du Québec à Montréal, Montreal, Quebec, Canada,Center for Excellence in Research on Orphan Diseases – Fondation Courtois (CERMO-FC), Montreal, Quebec, Canada,Corresponding author.
| | - Momar Ndao
- National Reference Centre for Parasitology, Research Institute of McGill University Health Centre, Montreal, Quebec, Canada,Infectious Diseases and Immunity in Global Health (IDIGH) Program, Research Institute of McGill University Health Centre, Montreal, Quebec, Canada,Department of Experimental Medicine, McGill University, Montreal, Quebec, Canada,Department of Microbiology and Immunology, McGill University, Montreal, Quebec, Canada,Corresponding author.
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Taurine Improves Sperm Mitochondrial Indices, Blunts Oxidative Stress Parameters, and Enhances Steroidogenesis and Kinematics of Sperm in Lead-Exposed Mice. Reprod Sci 2022; 30:1891-1910. [DOI: 10.1007/s43032-022-01140-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Accepted: 11/22/2022] [Indexed: 12/13/2022]
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Oyovwi MO, Nwangwa EK, Ben-Azu B, Edesiri TP, Emojevwe V, Igweh JC. Taurine and coenzyme Q10 synergistically prevent and reverse chlorpromazine-induced psycho-neuroendocrine changes and cataleptic behavior in rats. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2021; 394:717-734. [PMID: 33146779 DOI: 10.1007/s00210-020-02003-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Accepted: 10/15/2020] [Indexed: 12/21/2022]
Abstract
Over the years, mounting evidences have suggested a strong association between chronic chlorpromazine therapy, a popular first-generation antipsychotic drug, and psycho-neuroendocrine changes. In this study, we aim to examine whether treatment with taurine and coenzyme Q10 (COQ-10), compounds with steroidogenic-gonadotropin hormone-enhancing properties, can attenuate the negative impacts of chlorpromazine on steroidogenic, gonadotropin, thyroid and HPA-axis hormones, dopamine levels, catalepsy behavior and neuronal cells of the hypothalamus and pituitary gland in the preventive and reversal treatments in male Wister rats. In the drug treatment alone or preventive protocol, rats received oral administration of saline (10 mL/kg), taurine (150 mg/kg/day), COQ-10 (10 mg/kg/day), or both (taurine + COQ-10/day) alone for 56 consecutive days, or in combination with oral chlorpromazine (30 mg/kg/day) treatment from days 29 to 56. In the reversal protocol, the animals received chlorpromazine or saline for 56 days prior to taurine, COQ-10, or the combination from days 29 to 56. Thereafter, serum prolactin, steroidogenic (testosterone, estrogen, progesterone), gonadotropin (luteinizing hormone, LH, follicle-stimulating hormone, FSH), thyroid (thyrotropin-stimulating hormone, tetraiodothyronine, triiodothyronine) hormones, corticosterone, brain dopamine levels and cataleptic behavior were investigated. The histopathological features of the hypothalamus and pituitary gland were also evaluated. Taurine, COQ-10, or their combination prevented and reversed chlorpromazine-induced hyperprolactinemia, decrease in FSH, LH, testosterone, progesterone and dopamine concentrations, as well as the increase in estrogen levels. Taurine and COQ-10 reduced the changes in thyroid hormones, corticosterone release, histological distortions of the hypothalamus and the pituitary gland of chlorpromazine-treated rats. Taurine and COQ-10 attenuated chlorpromazine-induced catalepsy. The study showed that taurine and COQ-10 prevented and reversed chlorpromazine-induced changes in reproductive, thyroid hormones, dopamine level, corticosterone release, neurodegenerations, and cataleptic behavior in rats.
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Affiliation(s)
- Mega O Oyovwi
- Department of Human Physiology, Faculty of Basic Medical Sciences, Delta State University, Abraka, Delta State, Nigeria
- Department of Basic Medical Science, Achievers University, Owo, Ondo State, Nigeria
| | - Eze K Nwangwa
- Department of Human Physiology, Faculty of Basic Medical Sciences, Delta State University, Abraka, Delta State, Nigeria
| | - Benneth Ben-Azu
- Department of Pharmacology, Faculty of Basic Medical Science, PAMO University of Medical Sciences, Port Harcourt, Rivers State, Nigeria.
| | - Tesi P Edesiri
- Department of Science Laboratory Technology, Delta State Polytechnic, Ogwashi-Uku, Delta State, Nigeria
| | - Victor Emojevwe
- Department of Physiology, Faculty of Baic Medical Sciences, University of Medical Sciences, Ondo, Ondo State, Nigeria
| | - John C Igweh
- Department of Human Physiology, Faculty of Basic Medical Sciences, Delta State University, Abraka, Delta State, Nigeria
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Oyovwi MO, Nwangwa EK, Ben-Azu B, Rotue RA, Edesiri TP, Emojevwe V, Igweh JC, Uruaka CI. Prevention and reversal of chlorpromazine induced testicular dysfunction in rats by synergistic testicle-active flavonoids, taurine and coenzyme-10. Reprod Toxicol 2021; 101:50-62. [PMID: 33548410 DOI: 10.1016/j.reprotox.2021.01.013] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 01/15/2021] [Accepted: 01/27/2021] [Indexed: 12/21/2022]
Abstract
Evidences have shown that alterations in testicular dehydrogenase and ionic-ATPase activities have important implications in spermatogenesis and sperm capacitation, a penultimate biochemical change required for fertilization. Previous studies have revealed that taurine and coenzyme-Q10 (COQ-10), which are synergistic testicle-active bioflavonoids, with proven gonadotropin-enhancing properties reduce testicular damage in rats. Hence, this study investigated the effects of taurine and COQ-10 or their combination alone, and in the preventive and reversal of chlorpromazine-induced inhibition of testicular dehydrogenase enzymes, electrogenic pumps, sperm capacitation and acrosomal-reaction in male Wister rats. In the drug-treatment alone or preventive-protocol, rats received oral treatment of saline (10 mL/kg), taurine (150 mg/kg/day), COQ-10 (10 mg/kg/day) or both alone repeatedly for 56 days, or in combination with chlorpromazine (30 mg/kg/p.o./day) from days 29-56. In the reversal-protocol, the animals received chlorpromazine for 56 days prior to saline, taurine, COQ-10 or the combination from days 29-56. Thereafter, spermatogenesis (sperm count, viability, motility and morphology), testicular dehydrogenase [3beta-hydroxysteroid dehydrogenase (3ß-HSD), 17beta-hydroxysteroid dehydrogenase (17ß-HSD), glucose-6-phosphate dehydrogenase (G6PDH), lactate dehydrogenase-X (LDH-X)], ATPase (Na+/K+, Ca2+, Mg2+, H+) activities, sperm capacitation and acrosomal reaction were evaluated. Taurine and COQ-10 or their combination increased spermatogenesis, testicular 3ß-HSD, 17ß-HSD, G6PDH and LDH-X enzymes of naïve and chlorpromazine-treated rats. Both taurine and COQ-10 increased Na+/K+, Ca2+, Mg2+ and H+-ATPase activities. Also, taurine and COQ-10 or their combination prevented and reversed chlorpromazine-induced inhibition of sperm capacitation and acrosomal-reaction. The study showed that taurine and COQ-10 prevent and reverse chlorpromazine-induced inhibition of spermatogenesis, epididymal sperm capacitation and acrosomal reaction in rats through increased testicular dehydrogenases and electrogenic pump activities.
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Affiliation(s)
- Mega O Oyovwi
- Department of Human Physiology, Faculty of Basic Medical Sciences, College of Medicine, Delta State University, Abraka, Delta State, Nigeria; Department of Basic Medical Sciences, Achievers University, Owo, Ondo State, Nigeria
| | - Eze K Nwangwa
- Department of Human Physiology, Faculty of Basic Medical Sciences, College of Medicine, Delta State University, Abraka, Delta State, Nigeria
| | - Benneth Ben-Azu
- Department of Pharmacology and Therapeutics, Faculty of Basic Medical Sciences, College of Medicine, Delta State University, Abraka, Delta State, Nigeria.
| | - Rume A Rotue
- Department of Physiology, Faculty of Basic Medical Science, College of Medicine, University of Ibadan, Ibadan, Oyo State, Nigeria
| | - Tesi P Edesiri
- Department of Science Laboratory Technology, Delta State Polytechnic, Ogwashi-Uku, Delta State, Nigeria
| | - Victor Emojevwe
- Department of Physiology, University of Medical Sciences, Ondo, Ondo State, Nigeria
| | - John C Igweh
- Department of Human Physiology, Faculty of Basic Medical Sciences, College of Medicine, Delta State University, Abraka, Delta State, Nigeria
| | - Christian I Uruaka
- Department of Pharmacology and Therapeutics, Faculty of Basic Medical Sciences, Rivers State University, Port Harcourt, Rivers State, Nigeria
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Yang J, Lin S, Zhang Y, Wu G, Yang Q, Lv Q, Hu J. Taurine Improves Sexual Function in Streptozotocin-Induced Diabetic Rats. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2018; 975 Pt 1:307-318. [PMID: 28849465 DOI: 10.1007/978-94-024-1079-2_27] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Previous studies have identified that diabetic erectile dysfunction is associated with androgen and nitric oxide deficiency resulting from hyperglycemia. It has been demonstrated that taurine can stimulate testosterone secretion, increase nitric oxide synthase (NOS) activity and nitric oxide (NO) production, and reduce blood glucose levels in the diabetic animals. Furthermore, recent studies have found that taurine relaxes both the corpus cavernosum and the vasculature. Accordingly, we hypothesized that taurine might exert beneficial effects on erectile function of the diabetic rats. Here, we assessed the effects of taurine on sexual function in streptozotocin (STZ) -induced diabetic male rats. We observed that taurine treatment could markedly increase sexual response and mating ability of STZ-diabetic rats. The serum concentration of gonadotropin-releasing hormone (GnRH), luteinizing hormone (LH), follicle-stimulating hormone (FSH) and testosterone (T) were also significantly increased by taurine administration. Importantly, taurine supplementation notably increased mRNA levels and activity of endothelial NOS (eNOS) and neuronal NOS (nNOS), as well as NO and cGMP content, in the corpus cavernosum of the diabetic rats. In conclusion, the present data indicate that taurine can increase sexual function of STZ-induced diabetic male rats mainly by correcting the diabetes, increasing sexual desire, which is implicated in ameliorating the hypothalamic-pituitary-testicular axis function, and by improving penile erection, which requires increased signaling from the penile endothelial- and neuronal-dependent NO-cGMP pathway.
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Affiliation(s)
- Jiancheng Yang
- Liaoning Provincial Key Laboratory of Zoonosis, College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, Shenyang, Liaoning, 110866, People's Republic of China
| | - Shumei Lin
- Liaoning Provincial Key Laboratory of Zoonosis, College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, Shenyang, Liaoning, 110866, People's Republic of China
| | - Yu Zhang
- Agricultural College of Eastern Liaoning University, Dandong, Liaoning, 118003, People's Republic of China
| | - Gaofeng Wu
- Liaoning Provincial Key Laboratory of Zoonosis, College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, Shenyang, Liaoning, 110866, People's Republic of China
| | - Qunhui Yang
- Liaoning Provincial Key Laboratory of Zoonosis, College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, Shenyang, Liaoning, 110866, People's Republic of China
| | - Qiufeng Lv
- Liaoning Provincial Key Laboratory of Zoonosis, College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, Shenyang, Liaoning, 110866, People's Republic of China
| | - Jianmin Hu
- Liaoning Provincial Key Laboratory of Zoonosis, College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, Shenyang, Liaoning, 110866, People's Republic of China.
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Liu H, Lin S, Lv Q, Yang Q, Wu G, Hu J, Yang J. Taurine Recovers Testicular Steroidogenesis and Spermatogenesis in Streptozotocin-Induced Diabetic Rats. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2018; 975 Pt 2:801-811. [PMID: 28849500 DOI: 10.1007/978-94-024-1079-2_62] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A great deal of investigations have verified that diabetic male reproductive impairment is associated with the dysfunction of testicular steroidogenesis and spermatogenesis resulted from insulin deficiency and hyperglycaemia-induced oxidative stress. It has been identified taurine is profitable for diabetes mellitus and diabetic implications through its insulin-like and islet cells protective activity. Furthermore, our previous studies found that taurine could increase testicular antioxidative ability, stimulate the endocrine activity of hypothalamic-pituitary-testicular axis, elevate testosterone level, raise sperm quality, suppress the deterioration of testicular function. Accordingly, we hypothesized that taurine may have beneficial effects on testicular dysfunction under diabetic mellitus status. Here, we investigated the effects of taurine on testicular steroidogenesis and spermatogenesis in streptozotocin (STZ)-induced type I diabetic rats. We observed that taurine treatment can markedly increase the body and testis weights, testicular SDH and G6PDH activities, decrease the serum fasting glucose concentration of diabetic rats. Serum contents of GnRH, LH, FSH, T, and testicular StAR, 3β-HSD, 17β-HSD mRNA expression levels were also obviously raised by taurine administration, indicating that taurine can improve testicular steroidogenesis in diabetic animals. Finally, we found taurine supplementation effectively elevated the sperm count and motility, reduced sperm abnormality, suggesting that taurine can increase the testicular spermatogenesis function of diabetic rat. In summary, the present data indicated that taurine can rescue the function of testicular steroidogenesis and spermatogenesis in STZ-induced type I diabetic rats possibly by increasing the endocrine activity of hypothalamic-pituitary-testicular axis.
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Affiliation(s)
- Hong Liu
- Liaoning Provincial Key Laboratory of Zoonosis, College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, Shenyang, Liaoning, 110866, People's Republic of China
- Experimental Animal Center, Liaoning University of Traditional Chinese Medicine, Shenyang, Liaoning, 110847, People's Republic of China
| | - Shumei Lin
- Liaoning Provincial Key Laboratory of Zoonosis, College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, Shenyang, Liaoning, 110866, People's Republic of China
| | - Qiufeng Lv
- Liaoning Provincial Key Laboratory of Zoonosis, College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, Shenyang, Liaoning, 110866, People's Republic of China
| | - Qunhui Yang
- Liaoning Provincial Key Laboratory of Zoonosis, College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, Shenyang, Liaoning, 110866, People's Republic of China
| | - Gaofeng Wu
- Liaoning Provincial Key Laboratory of Zoonosis, College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, Shenyang, Liaoning, 110866, People's Republic of China
| | - Jianmin Hu
- Liaoning Provincial Key Laboratory of Zoonosis, College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, Shenyang, Liaoning, 110866, People's Republic of China
| | - Jiancheng Yang
- Liaoning Provincial Key Laboratory of Zoonosis, College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, Shenyang, Liaoning, 110866, People's Republic of China.
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Taurine enhances spermatogenic function and antioxidant defense mechanisms in testes and epididymis of L-NAME-induced hypertensive rats. Biomed Pharmacother 2018; 97:181-189. [DOI: 10.1016/j.biopha.2017.10.095] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2017] [Revised: 10/18/2017] [Accepted: 10/21/2017] [Indexed: 12/20/2022] Open
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Translational Perspective on the Role of Testosterone in Sexual Function and Dysfunction. J Sex Med 2017; 13:1183-98. [PMID: 27436075 DOI: 10.1016/j.jsxm.2016.06.004] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2016] [Revised: 05/13/2016] [Accepted: 06/09/2016] [Indexed: 12/31/2022]
Abstract
INTRODUCTION The biological importance of testosterone is generally accepted by the medical community; however, controversy focuses on its relevance to sexual function and the sexual response, and our understanding of the extent of its role in this area is evolving. AIM To provide scientific evidence examining the role of testosterone at the cellular and molecular levels as it pertains to normal erectile physiology and the development of erectile dysfunction and to assist in guiding successful therapeutic interventions for androgen-dependent sexual dysfunction. METHODS In this White Paper, the Basic Science Committee of the Sexual Medicine Society of North America assessed the current basic science literature examining the role of testosterone in sexual function and dysfunction. RESULTS Testosterone plays an important role in sexual function through multiple processes: physiologic (stimulates activity of nitric oxide synthase), developmental (establishes and maintains the structural and functional integrity of the penis), neural (development, maintenance, function, and plasticity of the cavernous nerve and pelvic ganglia), therapeutically for dysfunctional regulation (beneficial effect on aging, diabetes, and prostatectomy), and phosphodiesterase type 5 inhibition (testosterone supplement to counteract phosphodiesterase type 5 inhibitor resistance). CONCLUSION Despite controversies concerning testosterone with regard to sexual function, basic science studies provide incontrovertible evidence for a significant role of testosterone in sexual function and suggest that properly administered testosterone therapy is potentially advantageous for treating male sexual dysfunction.
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Abstract
Erectile dysfunction (ED) is one of the most common disorders in male and is often associated with other age-related comorbidities. The aging process affects the structural organization and function of penile erectile components such as smooth muscle cell and vascular architecture. These modifications affect penile hemodynamics by impairing cavernosal smooth muscle cell relaxation, reducing penile elasticity, compliance and promoting fibrosis. This review aims to identify the mechanisms of ED in the penile aging process in experimental and clinical data. It also highlights areas that are in need of more research. The search strategies yielded total records screened from PubMed. Clarification of the molecular mechanisms that accompanies corpus cavernosum aging and aging-associated ED will aid new perspectives in the development of novel mechanism-based therapeutic approaches. Age is not a limiting factor for ED medical management, and it is never too late to treat. Hypogonadism should be managed regardless of age, and synergistic effects have been found during testosterone (T) replacement therapy when used along with oral phosphodiesterase-5 (PDE-5) inhibitors. Therefore, the clinical management of ED related to aging can be done by therapeutic interventions that include PDE-5 inhibitors, and other pharmacological treatments.
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Affiliation(s)
- Ecem Kaya
- a Department of Biochemistry and Pharmacology , Faculty of Pharmacy, Ankara University , Ankara , Turkey and
| | - Suresh C Sikka
- b Department of Urology and Pharmacology , Tulane University Health Sciences Center , New Orleans , LA , USA
| | - Philip J Kadowitz
- b Department of Urology and Pharmacology , Tulane University Health Sciences Center , New Orleans , LA , USA
| | - Serap Gur
- a Department of Biochemistry and Pharmacology , Faculty of Pharmacy, Ankara University , Ankara , Turkey and
- b Department of Urology and Pharmacology , Tulane University Health Sciences Center , New Orleans , LA , USA
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Taurine increases testicular function in aged rats by inhibiting oxidative stress and apoptosis. Amino Acids 2015; 47:1549-58. [DOI: 10.1007/s00726-015-1995-0] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2015] [Accepted: 04/22/2015] [Indexed: 01/10/2023]
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Alvarenga TA, Hirotsu C, Mazaro-Costa R, Tufik S, Andersen ML. Impairment of male reproductive function after sleep deprivation. Fertil Steril 2015; 103:1355-62.e1. [DOI: 10.1016/j.fertnstert.2015.02.002] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2013] [Revised: 01/16/2015] [Accepted: 02/04/2015] [Indexed: 11/17/2022]
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Garcia-Reyero N, Ekman DR, Habib T, Villeneuve DL, Collette TW, Bencic DC, Ankley GT, Perkins EJ. Integrated approach to explore the mechanisms of aromatase inhibition and recovery in fathead minnows (Pimephales promelas). Gen Comp Endocrinol 2014; 203:193-202. [PMID: 24704562 DOI: 10.1016/j.ygcen.2014.03.022] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2013] [Revised: 03/10/2014] [Accepted: 03/12/2014] [Indexed: 12/20/2022]
Abstract
Aromatase, a member of the cytochrome P450 superfamily, is a key enzyme in estradiol synthesis that catalyzes the aromatization of androgens into estrogens in ovaries. Here, we used an integrated approach to assess the mechanistic basis of the direct effects of aromatase inhibition, as well as adaptation and recovery processes in fish. We exposed female fathead minnows (Pimephales promelas) via the water to 30 μg/L of a model aromatase inhibitor, fadrozole, during 8 days (exposure phase). Fish were then held in clean water for 8 more days (recovery phase). Samples were collected at 1, 2, 4, and 8 days of both the exposure and the recovery phases. Transcriptomics, metabolomics, and network inference were used to understand changes and infer connections at the transcript and metabolite level in the ovary. Apical endpoints directly indicative of endocrine function, such as plasma estradiol, testosterone, and vitellogenin levels were also measured. An integrated analysis of the data revealed changes in gene expression consistent with increased testosterone in fadrozole-exposed ovaries. Metabolites such as glycogen and taurine were strongly correlated with increased testosterone levels. Comparison of in vivo and ex vivo steroidogenesis data suggested the accumulation of steroidogenic enzymes, including aromatase, as a mechanism to compensate for aromatase inhibition.
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Affiliation(s)
- Natàlia Garcia-Reyero
- Institute for Genomics Biocomputing and Biotechnology, Mississippi State University, Starkville, MS 39759, USA.
| | - Drew R Ekman
- US Environmental Protection Agency, Office of Research and Development, National Exposure Research Laboratory, Athens, GA 30605, USA
| | - Tanwir Habib
- Badger Technical Services, San Antonio, TX 78216, USA
| | - Daniel L Villeneuve
- US Environmental Protection Agency, Office of Research and Development, National Health and Environmental Effects Research Laboratory, Mid-Continent Ecology Division, Duluth, MN, USA
| | - Timothy W Collette
- US Environmental Protection Agency, Office of Research and Development, National Exposure Research Laboratory, Athens, GA 30605, USA
| | - David C Bencic
- US Environmental Protection Agency, Office of Research and Development, National Exposure Research Laboratory, Ecological Exposures Research Division, Cincinnati, OH, USA
| | - Gerald T Ankley
- US Environmental Protection Agency, Office of Research and Development, National Health and Environmental Effects Research Laboratory, Mid-Continent Ecology Division, Duluth, MN, USA
| | - Edward J Perkins
- US Army Engineer Research and Development Center, Vicksburg, MS 39180, USA
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