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Romanello N, Barreto ADN, de Carvalho Balieiro JC, Brandão FZ, de Andrade AFC, Zappaterra M, Garcia AR. Effect of access to natural shade on scrotal thermoregulatory capacity, integrity of the testicular parenchyma and sperm morphology of Nelore (Bos indicus) and Canchim (Bos taurus x Bos indicus) bulls. INTERNATIONAL JOURNAL OF BIOMETEOROLOGY 2024:10.1007/s00484-024-02759-6. [PMID: 39167210 DOI: 10.1007/s00484-024-02759-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Revised: 06/03/2024] [Accepted: 08/09/2024] [Indexed: 08/23/2024]
Abstract
The objective of this work was to evaluate the effect of using naturally shaded pastures on scrotal thermoregulatory capacity, testicular echotexture, and sperm morphology of Nelore (Bos indicus) and Canchim (5/8 Bos taurus x 3/8 Bos indicus) bulls in a tropical climate region. Sixty-four adult Nelore and Canchim bulls were used, equally allocated in Full Sun (FS, n = 32) or Crop-Livestock-Forestry (CLF, n = 32) pasture systems. During five consecutive climate seasons, the bulls underwent monthly breeding soundness evaluations and the biometeorological variables in the systems were continuously monitored. Microclimate was significantly different between systems. CLF system had lower BGHI than FS throughout the experimental period. No triple interaction (Season x Breed x Treatment, P > 0.05) was observed for any of the variables. Animals in CLF showed lower body temperature in Summer (FS:39.41 ± 0.05 vs. CLF:39.30 ± 0.05 °C; P = 0.005) and in Autumn (FS:39.54 ± 0.05 vs. CLF:39.35 ± 0.05 °C; P = 0.005). Access to shading did not determine differences in the evolution of scrotal biometry, temperatures, and scrotal thermal gradients (P > 0.05). Regardless of breed, animals in CLF showed greater right testicular volume (FS:247.5 ± 5.7 vs. CLF:259.0 ± 5.7 cm³; P < 0.05), more suitable parenchyma echotexture, and fewer microlithiasis spots in the Spring and Summer. Testosterone concentration was higher in FS (FS:2.6 ± 0.2 vs. CLF:2.1 ± 0.2 ng/mL; P = 0.035). Canchim bulls presented higher total sperm defects during the Autumn and Winter (P = 0.010), but the total defects levels for Canchim and Nelore bulls were in normal range for adult bulls. Thus, the natural shade in CLF system was effective in improving the microclimate of pastures and minimizing adverse environmental effects on some reproductive features of interest in beef cattle.
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Affiliation(s)
- Narian Romanello
- Department of Animal Reproduction, School of Veterinary Medicine and Animal Science, University of São Paulo, Av. Duque de Caxias Norte, 255, Pirassununga, SP, 13635-900, Brazil
| | - Andréa do Nascimento Barreto
- Institute of Veterinary Medicine, Federal University of Pará, Av. dos Universitários, s/n, Castanhal, PA, 68746-360, Brazil
| | - Júlio Cesar de Carvalho Balieiro
- Department of Animal Nutrition and Production, School of Veterinary Medicine and Animal Science, University of São Paulo, Av. Duque de Caxias Norte, 255, Pirassununga, SP, 13635-900, Brazil
| | - Felipe Zandonadi Brandão
- School of Veterinary Medicine, Fluminense Federal University, Rua Vital Brazil, 64, Niterói, RJ, 24230-340, Brazil
| | - André Furugen Cesar de Andrade
- Department of Animal Reproduction, School of Veterinary Medicine and Animal Science, University of São Paulo, Av. Duque de Caxias Norte, 255, Pirassununga, SP, 13635-900, Brazil
| | - Martina Zappaterra
- Department of Agricultural and Food Sciences and Technology, University of Bologna, Viale Fanin, 46, Bologna, 40127, Italy
| | - Alexandre Rossetto Garcia
- Laboratory of Animal Reproduction, Brazilian Agricultural Research Corporation, Embrapa Southeast Livestock, Rod. Washington Luiz, km 234, São Carlos, SP, 13560-970, Brazil.
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du Preez HN, Lin J, Maguire GEM, Aldous C, Kruger HG. COVID-19 vaccine adverse events: Evaluating the pathophysiology with an emphasis on sulfur metabolism and endotheliopathy. Eur J Clin Invest 2024:e14296. [PMID: 39118373 DOI: 10.1111/eci.14296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/02/2024] [Accepted: 07/24/2024] [Indexed: 08/10/2024]
Abstract
In this narrative review, we assess the pathophysiology of severe adverse events that presented after vaccination with DNA and mRNA vaccines against COVID-19. The focus is on the perspective of an undersulfated and degraded glycocalyx, considering its impact on immunomodulation, inflammatory responses, coagulation and oxidative stress. The paper explores various factors that lead to glutathione and inorganic sulfate depletion and their subsequent effect on glycocalyx sulfation and other metabolites, including hormones. Components of COVID-19 vaccines, such as DNA and mRNA material, spike protein antigen and lipid nanoparticles, are involved in possible cytotoxic effects. The common thread connecting these adverse events is endotheliopathy or glycocalyx degradation, caused by depleted glutathione and inorganic sulfate levels, shear stress from circulating nanoparticles, aggregation and formation of protein coronas; leading to imbalanced immune responses and chronic release of pro-inflammatory cytokines, ultimately resulting in oxidative stress and systemic inflammatory response syndrome. By understanding the underlying pathophysiology of severe adverse events, better treatment options can be explored.
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Affiliation(s)
- Heidi N du Preez
- Catalysis and Peptide Research Unit, University of KwaZulu-Natal, Durban, South Africa
- College of Health Sciences, University of KwaZulu-Natal, Durban, South Africa
| | - Johnson Lin
- School of Life Sciences, University of KwaZulu-Natal, Durban, South Africa
| | - Glenn E M Maguire
- Catalysis and Peptide Research Unit, University of KwaZulu-Natal, Durban, South Africa
- School of Chemistry and Physics, University of KwaZulu-Natal, Durban, South Africa
| | - Colleen Aldous
- College of Health Sciences, University of KwaZulu-Natal, Durban, South Africa
| | - Hendrik G Kruger
- Catalysis and Peptide Research Unit, University of KwaZulu-Natal, Durban, South Africa
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Xie F, Wang Y, Chan S, Zheng M, Xue M, Yang X, Luo Y, Fang M. Testosterone Inhibits Lipid Accumulation in Porcine Preadipocytes by Regulating ELOVL3. Animals (Basel) 2024; 14:2143. [PMID: 39123669 PMCID: PMC11310965 DOI: 10.3390/ani14152143] [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: 06/26/2024] [Revised: 07/07/2024] [Accepted: 07/19/2024] [Indexed: 08/12/2024] Open
Abstract
Castration is commonly used to reduce stink during boar production. In porcine adipose tissue, castration reduces androgen levels resulting in metabolic disorders and excessive fat deposition. However, the underlying detailed mechanism remains unclear. In this study, we constructed porcine preadipocyte models with and without androgen by adding testosterone exogenously. The fluorescence intensity of lipid droplet (LD) staining and the fatty acid synthetase (FASN) mRNA levels were lower in the testosterone-treated cells than in the untreated control cells. In contrast, the mRNA levels of adipose triglycerides lipase (ATGL) and androgen receptor (AR) were higher than in the testosterone-treated cells than in the control cells. Subsequently, transcriptomic sequencing of porcine preadipocytes incubated with and without testosterone showed that the mRNA expression levels of very long-chain fatty acid elongase 3 (ELOVL3), a key enzyme involved in fatty acids synthesis and metabolism, were high in control cells. The siRNA-mediated knockdown of ELOVL3 reduced LD accumulation and the mRNA levels of FASN and increased the mRNA levels of ATGL. Next, we conducted dual-luciferase reporter assays using wild-type and mutant ELOVL3 promoter reporters, which showed that the ELOVL3 promoter contained an androgen response element (ARE); furthermore, its transcription was negatively regulated by AR overexpression. In conclusion, our study reveals that testosterone inhibits fat deposition in porcine preadipocytes by suppressing ELOVL3 expression. Moreover, our study provides a theoretical basis for further studies on the mechanisms of fat deposition caused by castration.
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Affiliation(s)
- Fuyin Xie
- Department of Animal Genetics and Breeding, National Engineering Laboratory for Animal Breeding, MOA Key Laboratory of Animal Genetics and Breeding, Beijing Key Laboratory for Animal Genetic Improvement, State Key Laboratory of Animal Biotech Breeding, Frontiers Science Center for Molecular Design Breeding, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China; (F.X.); (S.C.); (M.X.); (X.Y.)
| | - Yubei Wang
- Sanya Research Institute, China Agricultural University, Sanya 572025, China;
| | - Shuheng Chan
- Department of Animal Genetics and Breeding, National Engineering Laboratory for Animal Breeding, MOA Key Laboratory of Animal Genetics and Breeding, Beijing Key Laboratory for Animal Genetic Improvement, State Key Laboratory of Animal Biotech Breeding, Frontiers Science Center for Molecular Design Breeding, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China; (F.X.); (S.C.); (M.X.); (X.Y.)
| | - Meili Zheng
- Beijing General Station of Animal Husbandry, Beijing 100107, China;
| | - Mingming Xue
- Department of Animal Genetics and Breeding, National Engineering Laboratory for Animal Breeding, MOA Key Laboratory of Animal Genetics and Breeding, Beijing Key Laboratory for Animal Genetic Improvement, State Key Laboratory of Animal Biotech Breeding, Frontiers Science Center for Molecular Design Breeding, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China; (F.X.); (S.C.); (M.X.); (X.Y.)
| | - Xiaoyang Yang
- Department of Animal Genetics and Breeding, National Engineering Laboratory for Animal Breeding, MOA Key Laboratory of Animal Genetics and Breeding, Beijing Key Laboratory for Animal Genetic Improvement, State Key Laboratory of Animal Biotech Breeding, Frontiers Science Center for Molecular Design Breeding, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China; (F.X.); (S.C.); (M.X.); (X.Y.)
| | - Yabiao Luo
- Department of Animal Genetics and Breeding, National Engineering Laboratory for Animal Breeding, MOA Key Laboratory of Animal Genetics and Breeding, Beijing Key Laboratory for Animal Genetic Improvement, State Key Laboratory of Animal Biotech Breeding, Frontiers Science Center for Molecular Design Breeding, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China; (F.X.); (S.C.); (M.X.); (X.Y.)
| | - Meiying Fang
- Department of Animal Genetics and Breeding, National Engineering Laboratory for Animal Breeding, MOA Key Laboratory of Animal Genetics and Breeding, Beijing Key Laboratory for Animal Genetic Improvement, State Key Laboratory of Animal Biotech Breeding, Frontiers Science Center for Molecular Design Breeding, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China; (F.X.); (S.C.); (M.X.); (X.Y.)
- Sanya Research Institute, China Agricultural University, Sanya 572025, China;
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Dou P, Liu L, Jin M, Huang J, Lekhooa RM, Ran X, Yan X. Black ginseng: a novel medicine for treating heart failure. Front Pharmacol 2024; 15:1429214. [PMID: 39092221 PMCID: PMC11291204 DOI: 10.3389/fphar.2024.1429214] [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: 05/07/2024] [Accepted: 06/05/2024] [Indexed: 08/04/2024] Open
Abstract
Introduction: Black ginseng (BG) was processed by "steaming and drying" (generally nine times) repeatedly to produce "rare saponins" and secondary ginsenosides. Both ginseng (GS) and red ginseng (RG) were commonly used in treating heart failure (HF), and the latter was confirmed to be more potent, implying the presence of rare ginsenosides that contribute positively to the treatment of heart failure. Previous research indicated that rare ginsenosides are more abundant in BG than in RG. Consequently, this study aims to investigate the effects of BG and its components on HF to elucidate the active substances and their underlying mechanisms in the treatment of HF. Methods: The effects of BG and its fractions (water-eluted fraction (WEF), total saponin fraction (TSF), and alcohol-eluted fraction (AEF)) on rats with isoproterenol (ISO)-induced HF were explored, and steroids belonging to the hypothalamic-pituitary-adrenal (HPA) and hypothalamic-pituitary-gonadal (HPG) axes were determined quantitatively using the ultra-performance liquid chromatography-triple quadrupole tandem mass spectrometry (UPLC-QqQ-MS/MS) method. In addition, 16S rDNA sequencing was performed on the gut microbiota, followed by GC-MS analysis of short-chain fatty acids (SCFAs), and the biochemical indexes related to energy metabolism and the serum cyclic nucleotide system were also analyzed by ELISA. Results: Based on a thorough evaluation of energy metabolism and the endocrine system, it was observed that the effects of BG components on the hypothalamic-pituitary-thyroid (HPT) and HPA axes were more pronounced. Notably, the treatment efficacy of the low dose of the total saponin fraction (TSFL), water decoction (WD), and high dose of the polysaccharide fraction (PSFH) was superior based on pharmacodynamic indicators such as brain natriuretic peptide (BNP), creatine kinase (CK), and estradiol (E2)/T). Furthermore, the WD and BG components exhibited significant effects on androgens (T and androstenedione (A4)). The TSFL group exerts an anti-inflammatory effect by regulating Lactobacillus/Erysipelotrichales. The WD, PSFH, and TSFL may impact inflammatory cytokines through the gut microbiota (Lactobacillus/Erysipelotrichales) and their metabolites (acetate and butyrate), exerting an anti-inflammatory effect. Discussion: The BG and all its split components demonstrated varying levels of efficacy in alleviating HF, and TSF and PSF exhibited a significant protective effect on HF. The main active components in TSF were revealed to be ginsenosides Rk1, Rk3, 20-(S)-Rg3, and 20-(S)-Rh2 by the H9C2 cell experiment. The decoction of BG and its components exhibited a potent impact on androgen hormones, with an elevation trend. This phenomenon may be attributed to the activation of the eNOS-NO pathway through androgen regulation, thereby contributing to its anti-HF activities. The WD, PSFH, and TSFL may exert anti-inflammatory effects through the intestinal flora (Lactobacillaceae/Erysipelotrichaceae) and its metabolites (acetic acid and butyric acid), which affect the inflammatory factors. The different mechanisms of action of each component of HF also reflect the significance and necessity of the overall role of traditional Chinese medicine (TCM). Our research was the first to report that the E2/T is related to HF and can be used as an indicator to evaluate HF.
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Affiliation(s)
- Peiyuan Dou
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Linlin Liu
- College of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian, China
| | - Mozhu Jin
- College of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian, China
| | - Jing Huang
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Rose Makhotso Lekhooa
- Preclinical Drug Development Platform, Faculty of Health Sciences, North-West University, Potchefstroom, South Africa
| | - Xiaoku Ran
- College of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian, China
| | - Xiaohui Yan
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
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Park J, Jang J, So B, Lee K, Yeom D, Zhang Z, Shin WS, Kang C. Effects of Particulate Matter Inhalation during Exercise on Oxidative Stress and Mitochondrial Function in Mouse Skeletal Muscle. Antioxidants (Basel) 2024; 13:113. [PMID: 38247536 PMCID: PMC10812725 DOI: 10.3390/antiox13010113] [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: 12/07/2023] [Revised: 01/15/2024] [Accepted: 01/15/2024] [Indexed: 01/23/2024] Open
Abstract
Particulate matter (PM) has deleterious consequences not only on the respiratory system but also on essential human organs, such as the heart, blood vessels, kidneys, and liver. However, the effects of PM inhalation on skeletal muscles have yet to be sufficiently elucidated. Female C57BL/6 or mt-Keima transgenic mice were randomly assigned to one of the following four groups: control (CON), PM exposure alone (PM), treadmill exercise (EX), or PM exposure and exercise (PME). Mice in the three-treatment group were subjected to treadmill running (20 m/min, 90 min/day for 1 week) and/or exposure to PM (100 μg/m3). The PM was found to exacerbate oxidative stress and inflammation, both at rest and during exercise, as assessed by the levels of proinflammatory cytokines, manganese-superoxide dismutase activity, and the glutathione/oxidized glutathione ratio. Furthermore, we detected significant increases in the levels of in vivo mitophagy, particularly in the PM group. Compared with the EX group, a significant reduction in the level of mitochondrial DNA was recorded in the PME group. Moreover, PM resulted in a reduction in cytochrome c oxidase activity and an increase in hydrogen peroxide generation. However, exposure to PM had no significant effect on mitochondrial respiration. Collectively, our findings in this study indicate that PM has adverse effects concerning both oxidative stress and inflammatory responses in skeletal muscle and mitochondria, both at rest and during exercise.
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Affiliation(s)
- Jinhan Park
- Graduate School of Health and Exercise Science, Inha University, Incheon 22212, Republic of Korea; (J.P.); (J.J.); (B.S.); (K.L.); (D.Y.)
| | - Junho Jang
- Graduate School of Health and Exercise Science, Inha University, Incheon 22212, Republic of Korea; (J.P.); (J.J.); (B.S.); (K.L.); (D.Y.)
| | - Byunghun So
- Graduate School of Health and Exercise Science, Inha University, Incheon 22212, Republic of Korea; (J.P.); (J.J.); (B.S.); (K.L.); (D.Y.)
| | - Kanggyu Lee
- Graduate School of Health and Exercise Science, Inha University, Incheon 22212, Republic of Korea; (J.P.); (J.J.); (B.S.); (K.L.); (D.Y.)
| | - Dongjin Yeom
- Graduate School of Health and Exercise Science, Inha University, Incheon 22212, Republic of Korea; (J.P.); (J.J.); (B.S.); (K.L.); (D.Y.)
| | - Ziyi Zhang
- Tianjin Key Laboratory of Exercise Physiology and Sports Medicine, Institute of Sport, Exercise & Health, Tianjin University of Sport, Tianjin 300381, China;
| | - Woo Shik Shin
- Department of Pharmaceutical Sciences, Northeast Ohio Medical University, Rootstown, OH 44272, USA;
| | - Chounghun Kang
- Graduate School of Health and Exercise Science, Inha University, Incheon 22212, Republic of Korea; (J.P.); (J.J.); (B.S.); (K.L.); (D.Y.)
- Department of Physical Education, College of Education, Inha University, Incheon 22212, Republic of Korea
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Bhattacharya K, Dey R, Sen D, Paul N, Basak AK, Purkait MP, Shukla N, Chaudhuri GR, Bhattacharya A, Maiti R, Adhikary K, Chatterjee P, Karak P, Syamal AK. Polycystic ovary syndrome and its management: In view of oxidative stress. Biomol Concepts 2024; 15:bmc-2022-0038. [PMID: 38242137 DOI: 10.1515/bmc-2022-0038] [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: 10/30/2023] [Accepted: 12/11/2023] [Indexed: 01/21/2024] Open
Abstract
In the past two decades, oxidative stress (OS) has drawn a lot of interest due to the revelation that individuals with many persistent disorders including diabetes, polycystic ovarian syndrome (PCOS), cardiovascular, and other disorders often have aberrant oxidation statuses. OS has a close interplay with PCOS features such as insulin resistance, hyperandrogenism, and chronic inflammation; there is a belief that OS might contribute to the development of PCOS. PCOS is currently recognized as not only one of the most prevalent endocrine disorders but also a significant contributor to female infertility, affecting a considerable proportion of women globally. Therefore, the understanding of the relationship between OS and PCOS is crucial to the development of therapeutic and preventive strategies for PCOS. Moreover, the mechanistic study of intracellular reactive oxygen species/ reactive nitrogen species formation and its possible interaction with women's reproductive health is required, which includes complex enzymatic and non-enzymatic antioxidant systems. Apart from that, our current review includes possible regulation of the pathogenesis of OS. A change in lifestyle, including physical activity, various supplements that boost antioxidant levels, particularly vitamins, and the usage of medicinal herbs, is thought to be the best way to combat this occurrence of OS and improve the pathophysiologic conditions associated with PCOS.
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Affiliation(s)
- Koushik Bhattacharya
- School of Paramedics and Allied Health Sciences, Centurion University of Technology and Management, Khurda Road, Bhubaneswar, Odisha, India
| | - Rajen Dey
- Department of Medical Laboratory Technology, Swami Vivekananda University, Barrackpore, West Bengal, India
| | - Debanjana Sen
- Post-Graduate Department of Physiology, Hooghly Mohsin College, Chinsurah, West-Bengal, India
| | - Nimisha Paul
- Department of General Human Physiology and Biochemistry, Hitkarini Dental College and Hospital, Jabalpur, Madhya Pradesh, India
| | - Asim Kumar Basak
- School of Allied Health Sciences, Brainware University, Barasat, West-Bengal, India
| | | | - Nandini Shukla
- Department of Anatomy, Pt. J.N.M. Medical College, Raipur, Chhattisgarh, India
| | - Gargi Ray Chaudhuri
- Department of Physiotherapy, Nopany Institute of Health Care Studies, Kolkata, West-Bengal, India
| | - Aniruddha Bhattacharya
- Department of Physiology, International Medical School, Management and Science University, Selangor, Malaysia
| | - Rajkumar Maiti
- Department of Physiology, Bankura Christian College, Bankura, West Bengal, India
| | - Krishnendu Adhikary
- Department of Interdisciplinary Science, Centurion University of Technology and Management, Khurda Road, Bhubaneswar, Odisha, India
| | - Prity Chatterjee
- Department of Biotechnology, Paramedical College, Durgapur, West Bengal, India
| | - Prithviraj Karak
- Department of Physiology, Bankura Christian College, Bankura, West Bengal, India
| | - Alak Kumar Syamal
- Post-Graduate Department of Physiology, Hooghly Mohsin College, Chinsurah, West-Bengal, India
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Tiberi J, Cesarini V, Stefanelli R, Canterini S, Fiorenza MT, Rosa PL. Sex differences in antioxidant defence and the regulation of redox homeostasis in physiology and pathology. Mech Ageing Dev 2023; 211:111802. [PMID: 36958540 DOI: 10.1016/j.mad.2023.111802] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Revised: 03/14/2023] [Accepted: 03/20/2023] [Indexed: 03/25/2023]
Abstract
Reactive oxygen species (ROS) is a term that defines a group of unstable compounds derived from exogenous sources or endogenous metabolism. Under physiological conditions, low levels of ROS play a key role in the regulation of signal transduction- or transcription-mediated cellular responses. In contrast, excessive and uncontrolled loading of ROS results in a pathological state known as oxidative stress (OS), a leading contributor to aging and a pivotal factor for the onset and progression of many disorders. Evolution has endowed cells with an antioxidant system involved in stabilizing ROS levels to a specific threshold, preserving ROS-induced signalling function and limiting negative side effects. In mammals, a great deal of evidence indicates that females defence against ROS is more proficient than males, determining a longer lifespan and lower incidence of most chronic diseases. In this review, we will summarize the most recent sex-related differences in the regulation of redox homeostasis. We will highlight the peculiar aspects of the antioxidant defence in sex-biased diseases whose onset or progression is driven by OS, and we will discuss the molecular, genetic, and evolutionary determinants of female proficiency to cope with ROS.
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Affiliation(s)
- Jessica Tiberi
- Division of Neuroscience, Department of Psychology, Sapienza University of Rome, Rome, Italy; PhD program in Behavioral Neuroscience, Sapienza University of Rome, Rome, Italy
| | - Valeriana Cesarini
- Department of Biomedicine Institute of Translational Pharmacology (IFT), National Research Council (CNR), Rome, Italy
| | - Roberta Stefanelli
- Division of Neuroscience, Department of Psychology, Sapienza University of Rome, Rome, Italy
| | - Sonia Canterini
- Division of Neuroscience, Department of Psychology, Sapienza University of Rome, Rome, Italy; European Center for Brain Research, IRCCS Fondazione Santa Lucia, Rome, Italy
| | - Maria Teresa Fiorenza
- Division of Neuroscience, Department of Psychology, Sapienza University of Rome, Rome, Italy; European Center for Brain Research, IRCCS Fondazione Santa Lucia, Rome, Italy
| | - Piergiorgio La Rosa
- Division of Neuroscience, Department of Psychology, Sapienza University of Rome, Rome, Italy; European Center for Brain Research, IRCCS Fondazione Santa Lucia, Rome, Italy.
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Age-related decrease in serum dihydrotestosterone concentration is accompanied by impaired vascular status. Exp Gerontol 2023; 173:112104. [PMID: 36693531 DOI: 10.1016/j.exger.2023.112104] [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: 04/20/2022] [Revised: 12/03/2022] [Accepted: 01/20/2023] [Indexed: 01/22/2023]
Abstract
INTRODUCTION The effect of androgens on the cardiovascular system in humans is ambiguous. Moreover, still little is known about the effects of the most potent androgen, dihydrotestosterone, on arterial stiffness and endothelial function. The aim of this study was to evaluate whether age-dependent alterations in serum concentration of dihydrotestosterone and its circulating metabolite are accompanied by changes in endothelial function and arterial stiffness. METHODS In 12 young and 11 older men, basal serum concentrations of testosterone, dehydroepiandrosterone sulfate (DHAE-S), androstenedione (AE), dihydrotestosterone (DHT) and androstanediol glucuronide (ADG) were analyzed in relation to vascular status including cIMT - carotid intima media thickness, cAI - central augmentation index, crPWV - carotid radial pulse wave velocity, SI - stiffness index, endothelial and inflammatory markers. RESULTS Although concentration of testosterone was not different between young and older group, it was demonstrated that DHT, DHEA-S, AE and ADG were significantly lower in older men in comparison to young men (p < 0.01). Interestingly the most surprising difference was found for DHT concentration, that was as much as 61 % lower in aged men that displayed significantly higher values of cIMT, AI, crPWV and SI (p < 10-4), suggestive of arterial stiffness. Furthermore, DHT was negatively correlated to all arterial wall parameters (cAI, crPWV, SI and cIMT), c-reactive protein (CRP) and hyaluronic acid (HA) concentration, as well as positively correlated to markers of endothelial function (MNA and 6-keto-PGF1α) in all studied individuals (n = 23). CONCLUSIONS We have shown that ageing leads to a significant decrease in DHT concentration that is accompanied by impaired arterial wall characteristics and worsened endothelial function. Therefore more attention should be paid to the DHT, DHEA-S and ADG concentrations as a biomarkers for vascular dysfunction in ageing men.
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Allen MS, Tostes RC. Cigarette smoking and erectile dysfunction: an updated review with a focus on pathophysiology, e-cigarettes, and smoking cessation. Sex Med Rev 2023. [DOI: 10.1093/sxmrev/qeac007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Abstract
Introduction
Cigarette smoking has major health implications and causes substantial damage to all organ systems. Approximately one-third of men are active smokers worldwide, and most men are unaware that cigarette smoking can contribute to erectile dysfunction (ED).
Objectives
This article aims to provide a comprehensive overview of research conducted on cigarette smoking and ED, with a particular focus on pathophysiology, electronic cigarettes (e-cigarettes), and smoking cessation.
Methods
A manual literature search was conducted on all research conducted on cigarette smoking and ED up to October 2022.
Results
Substantial evidence is now available showing that past and current cigarette smoking has dose-dependent associations with ED in studies controlling for age and important health comorbidities. Cigarette smoke contains nicotine, carbon monoxide, oxidant chemicals, and metals that can damage the endothelium and disrupt erectile processes. For current smokers, smoking abstinence can strengthen the endothelium and reverse diminished erectile function. The effect of e-cigarettes on endothelial damage and ED remains largely untested. E-cigarettes expose users to fine and ultrafine particles and toxins that can increase risk of cardiovascular injury, but these acute effects appear less potent than conventional cigarettes (long-term cardiovascular effects are still unknown). E-cigarettes are therefore likely to have less harmful effects on ED than conventional cigarettes.
Conclusions
Smoking cessation programs that focus on nicotine replacement therapy (transdermal patches, gum, or inhalers), behavioral counseling, social support, and education programs can be effective approaches to ED treatment in active smokers. Temporarily transferring from regular cigarettes to e-cigarettes—which transmit some of the same carcinogens as conventional cigarettes and are likely to have some long-term cardiovascular effects that disrupt erectile function—might also be useful for long-term smoking cessation and treatment of ED.
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Affiliation(s)
- Mark S Allen
- Department of Psychology and Therapeutic Studies , Leeds Trinity University, Leeds, LS18 5HD, UK
| | - Rita C Tostes
- Department of Pharmacology, University of São Paulo , São Paulo, Brazil
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Rouver WDN, Delgado NTB, Gonçalves LT, Giesen JAS, Santos da Costa C, Merlo E, Damasceno Costa E, Lemos VS, Bernardes Graceli J, Santos RLD. Sex hormones and vascular reactivity: a temporal evaluation in resistance arteries of male rats. J Mol Endocrinol 2023; 70:e220147. [PMID: 36476761 DOI: 10.1530/jme-22-0147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Accepted: 10/18/2022] [Indexed: 11/09/2022]
Abstract
The role of androgens in vascular reactivity is controversial, particularly regarding their age-related actions. The objective of this study was to conduct a temporal evaluation of the vascular reactivity of resistance arteries of young male rats, as well as to understand how male sex hormones can influence the vascular function of these animals. Endothelium-mediated relaxation was characterized in third-order mesenteric arteries of 10-, 12-, 16-, and 18w (week-old) male rats. Concentration-response curves to acetylcholine (ACh, 0.1 nmol/L-10 µmol/L) were constructed in arteries previously contracted with phenylephrine (PE, 3 µmol/L), before and after the use of nitric oxide synthase or cyclooxygenase inhibitors. PE concentration-response curves (1 nmol/L-100 μmol/L) were also built. The levels of vascular nitric oxide, superoxide anion, and hydrogen peroxide were assessed and histomorphometry analysis was performed. The 18w group had impaired endothelium-dependent relaxation. All groups showed prostanoid-independent and nitric oxide-dependent vasodilatory response, although this dependence seems to be smaller in the 18w group. The 18w group had the lowest nitric oxide and hydrogen peroxide production, in addition to the highest superoxide anion levels. Besides functional impairment, 18w animals showed morphological differences in third-order mesenteric arteries compared with the other groups. Our data show that time-dependent exposure to male sex hormones appears to play an important role in the development of vascular changes that can lead to impaired vascular reactivity in mesenteric arteries, which could be related to the onset of age-related cardiovascular changes in males.
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Affiliation(s)
- Wender do Nascimento Rouver
- Department of Physiological Sciences, Health Sciences Center, Federal University of Espirito Santo, Vitoria, ES, Brazil
| | | | - Leticia Tinoco Gonçalves
- Department of Physiological Sciences, Health Sciences Center, Federal University of Espirito Santo, Vitoria, ES, Brazil
| | | | - Charles Santos da Costa
- Department of Morphology, Health Sciences Center, Federal University of Espirito Santo, Vitoria, ES, Brazil
| | - Eduardo Merlo
- Department of Morphology, Health Sciences Center, Federal University of Espirito Santo, Vitoria, ES, Brazil
| | - Eduardo Damasceno Costa
- Department of Physiology and Biophysics, Biological Sciences Institute, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Virginia Soares Lemos
- Department of Physiology and Biophysics, Biological Sciences Institute, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Jones Bernardes Graceli
- Department of Morphology, Health Sciences Center, Federal University of Espirito Santo, Vitoria, ES, Brazil
| | - Roger Lyrio Dos Santos
- Department of Physiological Sciences, Health Sciences Center, Federal University of Espirito Santo, Vitoria, ES, Brazil
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11
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Santos JD, Oliveira Neto JT, Barros PR, Damasceno LEA, Lautherbach N, Assis AP, Silva CAA, Sorgi CA, Faccioli LH, Kettelhut IC, Salgado HC, Carneiro FS, Alves Filho JC, Tostes RC. Th17 cells-linked mechanisms mediate vascular dysfunction induced by testosterone in a mouse model of gender-affirming hormone therapy. Am J Physiol Heart Circ Physiol 2022; 323:H322-H335. [PMID: 35714175 DOI: 10.1152/ajpheart.00182.2022] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Clinical data point to adverse cardiovascular events elicited by testosterone replacement therapy. Testosterone is the main hormone used in gender-affirming hormone therapy (GAHT) by transmasculine people. However, the cardiovascular impact of testosterone in experimental models of GAHT remains unknown. Sex hormones modulate T cells activation, and immune mechanisms contribute to cardiovascular risk. The present study evaluated whether testosterone negatively impacts female cardiovascular function by enhancing Th17 cells-linked effector mechanisms. Female (8 weeks-old) C57BL/6J mice received testosterone (48 mg.Kg-1.week-1) for 8 weeks. Male mice were used for phenotypical comparisons. The hormone-treatment in female mice increased circulating testosterone to levels observed in male mice. Testosterone increased lean body mass and body mass index, and decreased perigonadal fat mass, mimicking clinical findings. After 8 weeks, testosterone decreased endothelium-dependent vasodilation and increased circulating Th17 cells. After 24 weeks, testosterone increased blood pressure in female mice. Ovariectomy did not intensify phenotypical or cardiovascular effects by testosterone. Female mice lacking T and B cells [Rag1 knockout (-/-)], as well as female mice lacking IL-17 receptor (IL-17Ra-/-), did not exhibit vascular dysfunction induced by testosterone. Testosterone impaired endothelium-dependent vasodilation in female mice lacking γδ T cells, similarly to the observed in wild type female mice. Adoptive transfer of CD4+ T cells restored testosterone-induced vascular dysfunction in Rag1-/- female mice. Together, these data suggest that CD4+ T cells, most likely Th17 cells, are central to vascular dysfunction induced by testosterone in female mice, indicating that changes in immune cells balance are important in the GAHT in transmasculine people.
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Affiliation(s)
- Jeimison D Santos
- Department of Pharmacology, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, Sao Paulo, Brazil
| | - José T Oliveira Neto
- Department of Pharmacology, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, Sao Paulo, Brazil
| | - Paula R Barros
- Department of Pharmacology, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, Sao Paulo, Brazil
| | - Luis Eduardo Alves Damasceno
- Department of Pharmacology, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, Sao Paulo, Brazil
| | - Natalia Lautherbach
- Biochemistry and Immunology, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirão Preto, Brazil
| | - Ana P Assis
- Biochemistry and Immunology, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirão Preto, Brazil
| | - Carlos A A Silva
- Department of Physiology, Ribeirao Preto Medical School, University of Sao Paulo, Sao Paulo, Brazil
| | - Carlos A Sorgi
- Department of Chemistry, Faculty of Philosophy, Sciences and Letters at Ribeira Preto, University of Sao Paulo, Ribeirao Preto, Sao Paulo, Brazil
| | - Lucia H Faccioli
- Department of Clinical Analyses, Toxicology and Food Science, Faculty of Pharmaceutical Sciences of Ribeirao Preto, University of Sao Paulo, Ribeirao Preto, Sao Paulo, Brazil
| | - Isis C Kettelhut
- Biochemistry and Immunology, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirão Preto, Brazil
| | - Helio C Salgado
- Department of Physiology, Ribeirao Preto Medical School, University of Sao Paulo, Sao Paulo, Brazil
| | - Fernando S Carneiro
- Department of Pharmacology, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, Sao Paulo, Brazil
| | - Jose C Alves Filho
- Department of Pharmacology, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, Sao Paulo, Brazil
| | - Rita C Tostes
- Department of Pharmacology, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, Sao Paulo, Brazil
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12
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Bizoń A, Tchórz A, Madej P, Leśniewski M, Wójtowicz M, Piwowar A, Franik G. The Activity of Superoxide Dismutase, Its Relationship with the Concentration of Zinc and Copper and the Prevalence of rs2070424 Superoxide Dismutase Gene in Women with Polycystic Ovary Syndrome—Preliminary Study. J Clin Med 2022; 11:jcm11092548. [PMID: 35566673 PMCID: PMC9102417 DOI: 10.3390/jcm11092548] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Revised: 04/26/2022] [Accepted: 04/29/2022] [Indexed: 02/01/2023] Open
Abstract
Superoxide dismutase (SOD) is a crucial antioxidant enzyme involved in the antioxidant pathway during both normal cellular metabolism and different pathologic processes. We investigated the activity of the copper (Cu)-zinc (Zn) SOD1 as well as the level of Cu and Zn in the serum of women with polycystic ovary syndrome (PCOS) and control group. Moreover, the prevalence of rs2070424 gene polymorphism of the enzyme in the course of PCOS was evaluated. Significantly lower activity of SOD 1 and Cu, Zn concentration was found in the group of women with PCOS than without the syndrome. Insulin resistance in the group of women with PCOS caused a further SOD1 activity decrease, while Cu concentration and the value of Cu/Zn was increased when compared to women with normal insulin levels. Furthermore, we assessed for the first time the rs2070424 polymorphism of SOD1 in the women with PCOS, and in these patients we detected dominant variant AA (93.3%). Due to a small number of other genotypes, it is difficult to state if lower SOD1 activity was strictly associated with the AA variant or if other factors play a crucial role, but this should be taken into account.
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Affiliation(s)
- Anna Bizoń
- Department of Toxicology/Department of Biomedical and Environmental Analyses, Faculty of Pharmacy, Wroclaw Medical University, 50-556 Wrocław, Poland
- Correspondence: ; Tel.: +48-71-7840455
| | - Agata Tchórz
- Students Scientific Society at the Department of Biomedical and Environmental Analyses, Faculty of Pharmacy, Wroclaw Medical University, 50-556 Wrocław, Poland;
| | - Paweł Madej
- Department of Endocrinological Gynecology, Medical University of Silesia, 40-752 Katowice, Poland; (P.M.); (G.F.)
| | - Marcin Leśniewski
- Department of Gynaecological and Obstetrics, District Hospital, 43-200 Pszczyna, Poland;
| | - Mariusz Wójtowicz
- Women’s and Child Health Center, City Hospital, 41-803 Zabrze, Poland;
| | - Agnieszka Piwowar
- Department of Toxicology, Faculty of Pharmacy, Wroclaw Medical University, 50-556 Wrocław, Poland;
| | - Grzegorz Franik
- Department of Endocrinological Gynecology, Medical University of Silesia, 40-752 Katowice, Poland; (P.M.); (G.F.)
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13
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Sabe SA, Feng J, Sellke FW, Abid MR. Mechanisms and clinical implications of endothelium-dependent vasomotor dysfunction in coronary microvasculature. Am J Physiol Heart Circ Physiol 2022; 322:H819-H841. [PMID: 35333122 PMCID: PMC9018047 DOI: 10.1152/ajpheart.00603.2021] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Revised: 03/21/2022] [Accepted: 03/21/2022] [Indexed: 12/16/2022]
Abstract
Coronary microvascular disease (CMD), which affects the arterioles and capillary endothelium that regulate myocardial perfusion, is an increasingly recognized source of morbidity and mortality, particularly in the setting of metabolic syndrome. The coronary endothelium plays a pivotal role in maintaining homeostasis, though factors such as diabetes, hypertension, hyperlipidemia, and obesity can contribute to endothelial injury and consequently arteriolar vasomotor dysfunction. These disturbances in the coronary microvasculature clinically manifest as diminished coronary flow reserve, which is a known independent risk factor for cardiac death, even in the absence of macrovascular atherosclerotic disease. Therefore, a growing body of literature has examined the molecular mechanisms by which coronary microvascular injury occurs at the level of the endothelium and the consequences on arteriolar vasomotor responses. This review will begin with an overview of normal coronary microvascular physiology, modalities of measuring coronary microvascular function, and clinical implications of CMD. These introductory topics will be followed by a discussion of recent advances in the understanding of the mechanisms by which inflammation, oxidative stress, insulin resistance, hyperlipidemia, hypertension, shear stress, endothelial cell senescence, and tissue ischemia dysregulate coronary endothelial homeostasis and arteriolar vasomotor function.
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Affiliation(s)
- Sharif A Sabe
- Cardiovascular Research Center, Rhode Island Hospital, Providence, Rhode Island
- Division of Cardiothoracic Surgery, Alpert Medical School of Brown University and Rhode Island Hospital, Providence, Rhode Island
| | - Jun Feng
- Cardiovascular Research Center, Rhode Island Hospital, Providence, Rhode Island
- Division of Cardiothoracic Surgery, Alpert Medical School of Brown University and Rhode Island Hospital, Providence, Rhode Island
| | - Frank W Sellke
- Cardiovascular Research Center, Rhode Island Hospital, Providence, Rhode Island
- Division of Cardiothoracic Surgery, Alpert Medical School of Brown University and Rhode Island Hospital, Providence, Rhode Island
| | - M Ruhul Abid
- Cardiovascular Research Center, Rhode Island Hospital, Providence, Rhode Island
- Division of Cardiothoracic Surgery, Alpert Medical School of Brown University and Rhode Island Hospital, Providence, Rhode Island
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14
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Costa RM, Alves-Lopes R, Alves JV, Servian CP, Mestriner FL, Carneiro FS, Lobato NDS, Tostes RC. Testosterone Contributes to Vascular Dysfunction in Young Mice Fed a High Fat Diet by Promoting Nuclear Factor E2-Related Factor 2 Downregulation and Oxidative Stress. Front Physiol 2022; 13:837603. [PMID: 35350697 PMCID: PMC8958040 DOI: 10.3389/fphys.2022.837603] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Accepted: 01/31/2022] [Indexed: 11/22/2022] Open
Abstract
Obesity, an important risk factor for cardiovascular disease, promotes vascular oxidative stress. Considering that free testosterone levels remain within the reference range, especially in obese young men and that testosterone stimulates reactive oxygen species (ROS) generation, we sought to investigate whether testosterone interferes with obesity-associated oxidative stress and vascular dysfunction in male mice. We hypothesized that testosterone favors ROS accumulation and vascular dysfunction in high fat diet (HFD)-fed obese mice. We also questioned whether testosterone downregulates the nuclear factor E2–related factor 2 (Nrf2), one of the major cellular defense mechanisms against oxidative stimuli. Male C57Bl/6J mice were submitted to orchiectomy or sham-operation. Mice received either a control diet (CD) or HFD for 18 weeks. Vascular function was assessed in thoracic aortic rings and molecular mechanisms by which testosterone contributes to vascular dysfunction were determined. HFD reduced acetylcholine-induced vasodilation and increased vascular ROS generation in sham mice. Castration prevented these effects. Treatment of castrated mice fed either the CD or HFD with testosterone propionate decreased acetylcholine vasodilation. HFD decreased Nrf2 nuclear accumulation, events linked to decreased mRNA expression and activity of Nrf2-regulated enzymes (catalase, heme oxygenase-1, peroxiredoxin, and thioredoxin). These events were prevented in HFD-fed castrated mice. Bardoxolone, a Nrf2 activator, increased nuclear accumulation of Nrf2, decreased ROS generation and improved acetylcholine vasodilation in HFD-fed sham mice. In vitro, testosterone increased ROS generation and decreased Nrf2 nuclear accumulation. These effects were prevented in the presence of an androgen receptor antagonist, an inhibitor of gene transcription and an inhibitor of the pro-oxidant enzyme NOX-1. These results indicate that testosterone downregulates Nrf2, leading to oxidative stress and vascular dysfunction in HFD-fed obese young mice.
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Affiliation(s)
- Rafael M Costa
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil.,Academic Unit of Health Sciences, Federal University of Jatai, Jatai, Brazil
| | - Rhéure Alves-Lopes
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil.,British Heart Foundation, Glasgow Cardiovascular Research Centre, Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, United Kingdom
| | - Juliano V Alves
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Carolina P Servian
- Academic Unit of Health Sciences, Federal University of Jatai, Jatai, Brazil
| | - Fabíola L Mestriner
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Fernando S Carneiro
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Núbia de S Lobato
- Academic Unit of Health Sciences, Federal University of Jatai, Jatai, Brazil
| | - Rita C Tostes
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
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15
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Koukoulis GN, Filiponi M, Gougoura S, Befani C, Liakos P, Bargiota Α. Testosterone and dihydrotestosterone modulate the redox homeostasis of endothelium. Cell Biol Int 2022; 46:660-670. [DOI: 10.1002/cbin.11768] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Revised: 12/26/2021] [Accepted: 01/02/2022] [Indexed: 12/08/2022]
Affiliation(s)
- George N Koukoulis
- Research Laboratory, Department of Endocrinology and Metabolic Diseases, Larissa University Hospital, Faculty of Medicine, University of Thessaly41500BiopolisLarissaGreece
| | - Maria Filiponi
- Research Laboratory, Department of Endocrinology and Metabolic Diseases, Larissa University Hospital, Faculty of Medicine, University of Thessaly41500BiopolisLarissaGreece
| | - Sofia Gougoura
- Research Laboratory, Department of Endocrinology and Metabolic Diseases, Larissa University Hospital, Faculty of Medicine, University of Thessaly41500BiopolisLarissaGreece
| | - Christina Befani
- Laboratory of Biochemistry, Faculty of Medicine, University of Thessaly41500BiopolisLarissaGreece
| | - Panagiotis Liakos
- Laboratory of Biochemistry, Faculty of Medicine, University of Thessaly41500BiopolisLarissaGreece
| | - Αlexandra Bargiota
- Research Laboratory, Department of Endocrinology and Metabolic Diseases, Larissa University Hospital, Faculty of Medicine, University of Thessaly41500BiopolisLarissaGreece
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16
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Mendes ABA, Motta NAV, Lima GF, Autran LJ, Brazão SC, Magliano DC, Sepúlveda-Fragoso V, Scaramello CBV, Graceli JB, Miranda-Alves L, Brito FCF. Evaluation of the effects produced by subacute tributyltin administration on vascular reactivity of male wistar rats. Toxicology 2022; 465:153067. [PMID: 34902535 DOI: 10.1016/j.tox.2021.153067] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 11/25/2021] [Accepted: 12/09/2021] [Indexed: 12/14/2022]
Abstract
Tributyltin chloride (TBT) is an organotin compound widely used in several high biocides for agroindustrial applications, such as fungicides, and marine antifouling paints leading to endocrine disrupting actions, such as imposex development in mollusks. In female rats, TBT has been shown to promote ovarian dysfunction, reduction of estrogen protective effect in the vascular morphophysiology, at least in part by oxidative stress consequences. Estrogen causes coronary endothelium-dependent and independent vasodilation. However, the TBT effects on cardiovascular system of male rats are not fully understood. The aim of this study was to evaluate the effects of subacute TBT exposure in aorta vascular reactivity from male wistar rats. Rats were randomly divided into three groups: control (C), TBT 500 ng/kg/day and TBT 1000 ng/kg/day. TBT was administered daily for 30 days by oral gavage. We found that TBT exposure enhanced testosterone serum levels and it was also observed obesogenic properties. TBT exposure evoked an increase in endothelium-dependent and independent phenylephrine-induced contraction, associated to an inhibition in eNOS activity. On the other hand, it was observed an enhancement of iNOS and NF-kB protein expression. We also observed an increase in oxidative stress parameters, such as superoxide dismutase (SOD) and catalase expression, and also an increase in malondialdehyde production. Finally, TBT exposure produced aortic intima-media thickness. Taken together, these data suggest a potential cardiovascular toxicological effect after subacute TBT exposure in male rats.
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MESH Headings
- Animals
- Aorta, Thoracic/drug effects
- Aorta, Thoracic/metabolism
- Aorta, Thoracic/pathology
- Aorta, Thoracic/physiopathology
- Lipid Peroxidation/drug effects
- Male
- Muscle, Smooth, Vascular/drug effects
- Muscle, Smooth, Vascular/metabolism
- Muscle, Smooth, Vascular/pathology
- Muscle, Smooth, Vascular/physiopathology
- Myocytes, Smooth Muscle/drug effects
- Myocytes, Smooth Muscle/metabolism
- Myocytes, Smooth Muscle/pathology
- NF-kappa B/metabolism
- Nitric Oxide Synthase Type II/metabolism
- Nitric Oxide Synthase Type III/metabolism
- Oxidative Stress/drug effects
- Phosphorylation
- Rats, Wistar
- Testosterone/blood
- Trialkyltin Compounds/toxicity
- Vasoconstriction/drug effects
- Rats
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Affiliation(s)
- Ana Beatriz Araújo Mendes
- Laboratory of Experimental Pharmacology (LAFE), Department of Physiology and Pharmacology, Biomedical Institute, Fluminense Federal University (UFF), Niteroi, RJ, Brazil; Postgraduate Program in Endocrinology, Faculty of Medicine, Postgraduate Program in Pharmacology and Medicinal Chemistry and Postgraduate Program in Morphological Sciences, Institute of Biomedical Sciences, Federal University of Rio De Janeiro (UFRJ), Brazil
| | - Nadia Alice Vieira Motta
- Laboratory of Experimental Pharmacology (LAFE), Department of Physiology and Pharmacology, Biomedical Institute, Fluminense Federal University (UFF), Niteroi, RJ, Brazil
| | - Gabriel Ferreira Lima
- Laboratory of Experimental Pharmacology (LAFE), Department of Physiology and Pharmacology, Biomedical Institute, Fluminense Federal University (UFF), Niteroi, RJ, Brazil
| | - Lis Jappour Autran
- Laboratory of Experimental Pharmacology (LAFE), Department of Physiology and Pharmacology, Biomedical Institute, Fluminense Federal University (UFF), Niteroi, RJ, Brazil
| | - Stephani Correia Brazão
- Laboratory of Experimental Pharmacology (LAFE), Department of Physiology and Pharmacology, Biomedical Institute, Fluminense Federal University (UFF), Niteroi, RJ, Brazil
| | - D'Angelo Carlo Magliano
- Laboratory of Morphological and Metabolic Analyses, Department of Morphology Biomedical Institute, Fluminense Federal University (UFF), Brazil
| | - Vinícius Sepúlveda-Fragoso
- Laboratory of Morphological and Metabolic Analyses, Department of Morphology Biomedical Institute, Fluminense Federal University (UFF), Brazil
| | - Christianne Brêtas Vieira Scaramello
- Laboratory of Experimental Pharmacology (LAFE), Department of Physiology and Pharmacology, Biomedical Institute, Fluminense Federal University (UFF), Niteroi, RJ, Brazil
| | - Jones Bernardes Graceli
- Laboratory of Endocrinology and Cell Toxicology, Department of Morphology/ CCS, Federal University of Espírito Santo (UFES), Brazil
| | - Leandro Miranda-Alves
- Postgraduate Program in Endocrinology, Faculty of Medicine, Postgraduate Program in Pharmacology and Medicinal Chemistry and Postgraduate Program in Morphological Sciences, Institute of Biomedical Sciences, Federal University of Rio De Janeiro (UFRJ), Brazil
| | - Fernanda Carla Ferreira Brito
- Laboratory of Experimental Pharmacology (LAFE), Department of Physiology and Pharmacology, Biomedical Institute, Fluminense Federal University (UFF), Niteroi, RJ, Brazil.
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17
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Shabani E, Kalantari H, Kalantar M, Goudarzi M, Mansouri E, Kalantar H. Berberine ameliorates testosterone-induced benign prostate hyperplasia in rats. BMC Complement Med Ther 2021; 21:301. [PMID: 34930229 PMCID: PMC8690423 DOI: 10.1186/s12906-021-03472-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Accepted: 11/30/2021] [Indexed: 11/10/2022] Open
Abstract
INTRODUCTION Benign prostatic hyperplasia (BPH) is a major urologic problem that mostly develops in older males. Oxidative stress and inflammation influence the occurrence of BPH. Berberine (BBR) is a natural ingredient that has antioxidant and anti-inflammatory properties. The current research aims at examining the effects of BBR on testosterone-stimulated BPH in rats. METHODS Animals were randomly categorized to six groups. In the control group, normal saline and olive oil were injected as the vehicle. BPH group: received testosterone (3 mg/kg, subcutaneous, 28 days), BPH + BBR groups; received BBR (25 and 50 mg/kg, p.o, 28 days), BPH + finasteride groups: received finasteride (1 mg/kg, p.o, 28 days), BBR (50 mg/kg, p.o, alone) was administered for subjects in the BBR group. On the 29th day, after anesthesia, cervical dislocation was used to kill the subjects. Serum concentration of testosterone and dihydrotestosterone was measured and prostate tissues were excised and used for biochemical, inflammation, and histological analysis. RESULTS BBR prevented increased serum concentrations of testosterone and dihydrotestosterone. BBR considerably reduced BPH-stimulated oxidative stress and inflammation through preventing the rise in lipid peroxidation and nitrite concentration and declined the accumulations of pro-inflammatory cytokines (e.g. interleukin 1β and tumor necrosis factor α) and declining the depletion rate of GSH and the function of catalase and superoxide dismutase. Histopathological investigations reported that administration of BBR could suppress testosterone-stimulated BPH. CONCLUSION This study demonstrated that BBR could significantly prevent the development of BPH in rats.
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Affiliation(s)
- Ehsan Shabani
- Toxicology Research Center, Medical Basic Sciences Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Heibatullah Kalantari
- Toxicology Research Center, Medical Basic Sciences Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
- Department of Toxicology, School of Pharmacy, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Mojtaba Kalantar
- Shoushtar Faculty of Medical Sciences, Shoushtar, Iran
- Medicinal Plant Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Mehdi Goudarzi
- Medicinal Plant Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Esrafil Mansouri
- Cellular and Molecular Research Center, Medical Basic Sciences Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Hadi Kalantar
- Toxicology Research Center, Medical Basic Sciences Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
- Department of Toxicology, School of Pharmacy, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
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18
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Cypriano ML, Dos Santos Ramos GHA, de Oliveira ACF, Dos Santos DR, Fiais GA, de Oliveira AP, Antoniali C, Dornelles RCM, de Melo Stevanato Nakamune AC, Chaves-Neto AH. Effect of testosterone replacement therapy and mate tea (Ilex paraguariensis) on biochemical, functional and redox parameters of saliva in orchiectomized rats. Arch Oral Biol 2021; 132:105289. [PMID: 34695671 DOI: 10.1016/j.archoralbio.2021.105289] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 10/08/2021] [Accepted: 10/12/2021] [Indexed: 02/06/2023]
Abstract
OBJECTIVE Evaluate the effects of testosterone replacement therapy (TRT) and mate tea (MT) [Ilex paraguariensis] on biochemical, functional, and redox parameters of saliva in orchiectomized rats (ORX) DESIGN: Sixty young adult male Wistar rats (3 months old) were either castrated bilaterally or underwent fictitious surgery (SHAM) and were distributed into 5 groups: SHAM, ORX, TU (castrated rats that received a single intramuscular injection of testosterone undecanoate 100 mg/kg), MT (castrated rats that received MT 20 mg/kg, via intragastric gavage, daily), and TU + MT. All treatments started 4 weeks after castration (4 months old) and lasted 4 weeks (5 months old). At the end of treatment, pilocarpine-induced salivary secretion was collected to analyze salivary flow rate (SFR) and biochemistry composition through determination of total protein (TP), amylase (AMY), electrolyte, and biomarkers of oxidative stress. RESULTS ORX increased SFR, salivary buffering capacity, calcium, phosphate, chloride, total antioxidant capacity, thiobarbituric acid reactive substances (TBARs), and carbonyl protein, reduced TP and AMY activity, and did not change pH, sodium, and potassium compared to SHAM. TU and TU+MT restored all salivary parameters to values of SHAM, while only TBARs and AMY returned to SHAM levels in the MT group. CONCLUSIONS TRT with long-acting TU restored the biochemical, functional, and redox parameters of saliva in orchiectomized rats. Although MT did not have a TRT-like effect on salivary gland function, the more effective reduction in lipid oxidative damage in the MT and TU + MT groups could be considered as adjuvant to alleviate the salivary oxidative stress induced by orchiectomy.
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Affiliation(s)
- Matheus Lima Cypriano
- Department of Basic Sciences, São Paulo State University (Unesp), School of Dentistry, Araçatuba, São Paulo, Brazil; Programa de Pós-Graduação Multicêntrico em Ciências Fisiológicas - SBFis, São Paulo State University (Unesp), School of Dentistry, Araçatuba, São Paulo, Brazil
| | | | | | - Damáris Raissa Dos Santos
- Department of Basic Sciences, São Paulo State University (Unesp), School of Dentistry, Araçatuba, São Paulo, Brazil; Programa de Pós-Graduação Multicêntrico em Ciências Fisiológicas - SBFis, São Paulo State University (Unesp), School of Dentistry, Araçatuba, São Paulo, Brazil
| | - Gabriela Alice Fiais
- Department of Basic Sciences, São Paulo State University (Unesp), School of Dentistry, Araçatuba, São Paulo, Brazil; Programa de Pós-Graduação Multicêntrico em Ciências Fisiológicas - SBFis, São Paulo State University (Unesp), School of Dentistry, Araçatuba, São Paulo, Brazil
| | - Arthur Passos de Oliveira
- Department of Basic Sciences, São Paulo State University (Unesp), School of Dentistry, Araçatuba, São Paulo, Brazil
| | - Cristina Antoniali
- Department of Basic Sciences, São Paulo State University (Unesp), School of Dentistry, Araçatuba, São Paulo, Brazil; Programa de Pós-Graduação Multicêntrico em Ciências Fisiológicas - SBFis, São Paulo State University (Unesp), School of Dentistry, Araçatuba, São Paulo, Brazil
| | - Rita Cássia Menegati Dornelles
- Department of Basic Sciences, São Paulo State University (Unesp), School of Dentistry, Araçatuba, São Paulo, Brazil; Programa de Pós-Graduação Multicêntrico em Ciências Fisiológicas - SBFis, São Paulo State University (Unesp), School of Dentistry, Araçatuba, São Paulo, Brazil
| | - Ana Cláudia de Melo Stevanato Nakamune
- Department of Basic Sciences, São Paulo State University (Unesp), School of Dentistry, Araçatuba, São Paulo, Brazil; Programa de Pós-Graduação Multicêntrico em Ciências Fisiológicas - SBFis, São Paulo State University (Unesp), School of Dentistry, Araçatuba, São Paulo, Brazil
| | - Antonio Hernandes Chaves-Neto
- Department of Basic Sciences, São Paulo State University (Unesp), School of Dentistry, Araçatuba, São Paulo, Brazil; Programa de Pós-Graduação Multicêntrico em Ciências Fisiológicas - SBFis, São Paulo State University (Unesp), School of Dentistry, Araçatuba, São Paulo, Brazil.
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19
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Cardiovascular Properties of the Androgen-Induced PCOS Model in Rats: The Role of Oxidative Stress. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:8862878. [PMID: 34512871 PMCID: PMC8426083 DOI: 10.1155/2021/8862878] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 01/13/2021] [Accepted: 08/16/2021] [Indexed: 01/24/2023]
Abstract
Polycystic ovary syndrome (PCOS) is a multifaced reproductive endocrinopathy affecting 6-20% of women of childbearing age. It was previously shown that women with PCOS have an increased risk of cardiovascular (CV) diseases. The aim of this study was to evaluate the cardiodynamic parameters of isolated rats' hearts, blood pressure levels, and histomorphological changes in the heart tissue following the androgen-induced PCOS model in rats and the role of oxidative stress in the development of these CV properties of PCOS. 21-day-old female rats (n = 12) were divided into control and PCOS groups. PCOS was induced by administration of testosterone enanthate (1 mg/kg BW, daily) during 35 days. During the autoregulation protocol (40-120 mmHg) on the Langendorff apparatus, ex vivo cardiodynamic parameters of retrogradely perfused hearts showed enhanced contractile function and increased lusitropic effects in the left ventricle (LV) in PCOS rats. Systolic and diastolic pressures in LV were elevated at all perfusion pressure values. Systemic arterial systolic blood pressure showed borderline elevation, while mean arterial blood pressure was significantly higher in PCOS rats. Histological evaluation of heart tissue depicted hypertrophic (8.3%) alterations in LV cardiomyocytes and increase (7.3%) in LV wall thickness. Oxidative stress parameters were altered in systemic circulation, coronary venous effluent (CVE), and heart tissue. Levels of superoxide dismutase and reduced glutathione were decreased in blood and heart tissue, while catalase activity was not altered. Degree of lipid peroxidation was increased in circulation as well as heart tissue. Increased levels of O2− in CVE indicated the cardiotoxic effects in the rat PCOS model. The mentioned alterations of oxidative stress parameters in the blood, CVE, and heart could be recommended as potential contributors underlying the development of CV risk in PCOS women.
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20
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Sipos M, Gerszi D, Dalloul H, Bányai B, Sziva RE, Kollarics R, Magyar P, Török M, Ács N, Szekeres M, Nádasy GL, Hadjadj L, Horváth EM, Várbíró S. Vitamin D Deficiency and Gender Alter Vasoconstrictor and Vasodilator Reactivity in Rat Carotid Artery. Int J Mol Sci 2021; 22:ijms22158029. [PMID: 34360792 PMCID: PMC8347553 DOI: 10.3390/ijms22158029] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 07/19/2021] [Accepted: 07/22/2021] [Indexed: 01/07/2023] Open
Abstract
The vitamin-D-sensitivity of the cardiovascular system may show gender differences. The prevalence of vitamin D (VD) deficiency (VDD) is high, and it alters cardiovascular function and increases the risk of stroke. Our aim was to investigate the vascular reactivity and histological changes of isolated carotid artery of female and male rats in response to different VD supplies. A total of 48 male and female Wistar rats were divided into four groups: female VD supplemented, female VDD, male VD supplemented, male VDD. The vascular function of isolated carotid artery segments was examined by wire myography. Both vitamin D deficiency and male gender resulted in increased phenylephrine-induced contraction. Acetylcholine-induced relaxation decreased in male rats independently from VD status. Inhibition of prostanoid signaling by indomethacin reduced contraction in females, but increased relaxation ability in male rats. Functional changes were accompanied by VDD and gender-specific histological alterations. Elastic fiber density was significantly decreased by VDD in female rats, but not in males. Smooth muscle actin and endothelial nitric oxide synthase levels were significantly lowered, but the thromboxane receptor was elevated in VDD males. Decreased nitrative stress was detected in both male groups independently from VD supply. The observed interactions between vitamin D deficiency and sex may play a role in the gender difference of cardiovascular risk.
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Affiliation(s)
- Miklós Sipos
- Department of Obstetrics and Gynecology, Faculty of Medicine, Semmelweis University, Üllői Street 78/a, 1083 Budapest, Hungary; (M.S.); (D.G.); (H.D.); (R.K.); (M.T.); (N.Á.); (S.V.)
| | - Dóra Gerszi
- Department of Obstetrics and Gynecology, Faculty of Medicine, Semmelweis University, Üllői Street 78/a, 1083 Budapest, Hungary; (M.S.); (D.G.); (H.D.); (R.K.); (M.T.); (N.Á.); (S.V.)
- Department of Physiology, Faculty of Medicine, Semmelweis University, Tűzoltó Street 37-47, 1094 Budapest, Hungary; (B.B.); (M.S.); (G.L.N.); (E.M.H.)
| | - Hicham Dalloul
- Department of Obstetrics and Gynecology, Faculty of Medicine, Semmelweis University, Üllői Street 78/a, 1083 Budapest, Hungary; (M.S.); (D.G.); (H.D.); (R.K.); (M.T.); (N.Á.); (S.V.)
| | - Bálint Bányai
- Department of Physiology, Faculty of Medicine, Semmelweis University, Tűzoltó Street 37-47, 1094 Budapest, Hungary; (B.B.); (M.S.); (G.L.N.); (E.M.H.)
| | - Réka Eszter Sziva
- Department of Obstetrics and Gynecology, Faculty of Medicine, Semmelweis University, Üllői Street 78/a, 1083 Budapest, Hungary; (M.S.); (D.G.); (H.D.); (R.K.); (M.T.); (N.Á.); (S.V.)
- Department of Physiology, Faculty of Medicine, Semmelweis University, Tűzoltó Street 37-47, 1094 Budapest, Hungary; (B.B.); (M.S.); (G.L.N.); (E.M.H.)
- Workgroup for Science Management, Doctoral School, Semmelweis University, Üllői Street 22, 1085 Budapest, Hungary
- Correspondence:
| | - Réka Kollarics
- Department of Obstetrics and Gynecology, Faculty of Medicine, Semmelweis University, Üllői Street 78/a, 1083 Budapest, Hungary; (M.S.); (D.G.); (H.D.); (R.K.); (M.T.); (N.Á.); (S.V.)
- Department of Physiology, Faculty of Medicine, Semmelweis University, Tűzoltó Street 37-47, 1094 Budapest, Hungary; (B.B.); (M.S.); (G.L.N.); (E.M.H.)
| | - Péter Magyar
- Medical Imaging Centre, Faculty of Medicine, Semmelweis University, Üllői Street 78/a, 1083 Budapest, Hungary;
| | - Marianna Török
- Department of Obstetrics and Gynecology, Faculty of Medicine, Semmelweis University, Üllői Street 78/a, 1083 Budapest, Hungary; (M.S.); (D.G.); (H.D.); (R.K.); (M.T.); (N.Á.); (S.V.)
- Workgroup for Science Management, Doctoral School, Semmelweis University, Üllői Street 22, 1085 Budapest, Hungary
| | - Nándor Ács
- Department of Obstetrics and Gynecology, Faculty of Medicine, Semmelweis University, Üllői Street 78/a, 1083 Budapest, Hungary; (M.S.); (D.G.); (H.D.); (R.K.); (M.T.); (N.Á.); (S.V.)
| | - Mária Szekeres
- Department of Physiology, Faculty of Medicine, Semmelweis University, Tűzoltó Street 37-47, 1094 Budapest, Hungary; (B.B.); (M.S.); (G.L.N.); (E.M.H.)
- Department of Morphology and Physiology, Faculty of Health Sciences, Semmelweis University, Vas Street 17, 1088, Budapest, Hungary
| | - György L. Nádasy
- Department of Physiology, Faculty of Medicine, Semmelweis University, Tűzoltó Street 37-47, 1094 Budapest, Hungary; (B.B.); (M.S.); (G.L.N.); (E.M.H.)
| | - Leila Hadjadj
- Department of Translational Medicine, Faculty of Medicine, Semmelweis University, Tűzoltó Street 37-47, 1094 Budapest, Hungary;
| | - Eszter Mária Horváth
- Department of Physiology, Faculty of Medicine, Semmelweis University, Tűzoltó Street 37-47, 1094 Budapest, Hungary; (B.B.); (M.S.); (G.L.N.); (E.M.H.)
| | - Szabolcs Várbíró
- Department of Obstetrics and Gynecology, Faculty of Medicine, Semmelweis University, Üllői Street 78/a, 1083 Budapest, Hungary; (M.S.); (D.G.); (H.D.); (R.K.); (M.T.); (N.Á.); (S.V.)
- Workgroup for Science Management, Doctoral School, Semmelweis University, Üllői Street 22, 1085 Budapest, Hungary
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21
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Woodward HJ, Zhu D, Hadoke PWF, MacRae VE. Regulatory Role of Sex Hormones in Cardiovascular Calcification. Int J Mol Sci 2021; 22:4620. [PMID: 33924852 PMCID: PMC8125640 DOI: 10.3390/ijms22094620] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 04/20/2021] [Accepted: 04/26/2021] [Indexed: 02/06/2023] Open
Abstract
Sex differences in cardiovascular disease (CVD), including aortic stenosis, atherosclerosis and cardiovascular calcification, are well documented. High levels of testosterone, the primary male sex hormone, are associated with increased risk of cardiovascular calcification, whilst estrogen, the primary female sex hormone, is considered cardioprotective. Current understanding of sexual dimorphism in cardiovascular calcification is still very limited. This review assesses the evidence that the actions of sex hormones influence the development of cardiovascular calcification. We address the current question of whether sex hormones could play a role in the sexual dimorphism seen in cardiovascular calcification, by discussing potential mechanisms of actions of sex hormones and evidence in pre-clinical research. More advanced investigations and understanding of sex hormones in calcification could provide a better translational outcome for those suffering with cardiovascular calcification.
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Affiliation(s)
- Holly J. Woodward
- The Roslin Institute & R(D)SVS, University of Edinburgh, Easter Bush, Midlothian EH25 9RG, UK;
| | - Dongxing Zhu
- Guangzhou Institute of Cardiovascular Disease, Guangdong Key Laboratory of Vascular Diseases, State Key Laboratory of Respiratory Disease, the Second Affiliated Hospital, Guangzhou Medical University, Guangzhou 510260, China
| | - Patrick W. F. Hadoke
- University/BHF Centre for Cardiovascular Science, University of Edinburgh, Edinburgh, 47 Little France Crescent, Edinburgh EH16 4TJ, UK;
| | - Victoria E. MacRae
- The Roslin Institute & R(D)SVS, University of Edinburgh, Easter Bush, Midlothian EH25 9RG, UK;
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22
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Lajtai K, Tarszabó R, Bányai B, Péterffy B, Gerszi D, Ruisanchez É, Sziva RE, Korsós-Novák Á, Benkő R, Hadjadj L, Benyó Z, Horváth EM, Masszi G, Várbíró S. Effect of Vitamin D Status on Vascular Function of the Aorta in a Rat Model of PCOS. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:8865979. [PMID: 33791074 PMCID: PMC7997742 DOI: 10.1155/2021/8865979] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Revised: 02/15/2021] [Accepted: 03/06/2021] [Indexed: 01/23/2023]
Abstract
Polycystic ovary syndrome (PCOS) is associated with elevated cardiovascular risk. Early vascular dysfunction may lead to the development of cardiovascular disease in PCOS. Vitamin D deficiency (VDD) is a common comorbidity of PCOS that contributes to the pathogenesis of the disease and its complications. Both PCOS and VDD are accompanied by increased oxidative stress that may be involved in the arising vascular dysfunction. We aimed to investigate the role of vitamin D status on aortic function. PCOS was induced by an 8-week-long transdermal testosterone treatment of female rats, and low and adequate vitamin D status was achieved by dietary means. Contraction and relaxation abilities of isolated aortic segments were measured by myograph. Resorcin-fuchsin staining and immunohistochemical labeling of 3-nitrotyrosine were performed. No difference was shown in the norepinephrine-induced contraction of the aortas of different groups, whereas we detected reduced acetylcholine- and insulin-evoked relaxation in VDD groups. A lower level of resorcin-fuchsin staining and elevated 3-nitrotyrosine immunostaining was observed in VDD. In our study, we demonstrated early endothelial dysfunction in VDD PCOS rat model. Vitamin D supplementation could prevent vascular disturbances, while VDD itself damaged endothelium-dependent vasorelaxation and induced nitrative stress.
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Affiliation(s)
- K. Lajtai
- Department of Obstetrics and Gynecology, Semmelweis University, Hungary Budapest, Üllői út 78/a, H-1082
| | - R. Tarszabó
- Department of Obstetrics and Gynecology, Markusovszky Lajos University Teaching Hospital, Hungary Szombathely, Markusovszky Lajos utca 5., H-9700
| | - B. Bányai
- Department of Physiology, Hungary Budapest, Tűzoltó utca 37-47, H-1094
| | - B. Péterffy
- Department of Physiology, Hungary Budapest, Tűzoltó utca 37-47, H-1094
| | - D. Gerszi
- Department of Obstetrics and Gynecology, Semmelweis University, Hungary Budapest, Üllői út 78/a, H-1082
| | - É. Ruisanchez
- Department of Translational Medicine, Hungary Budapest, Tűzoltó utca 37-47, H-1094
| | - R. E. Sziva
- Department of Obstetrics and Gynecology, Semmelweis University, Hungary Budapest, Üllői út 78/a, H-1082
- Department of Physiology, Hungary Budapest, Tűzoltó utca 37-47, H-1094
| | - Á. Korsós-Novák
- Department of Pathology, Hetényi Géza Hospital, Hungary Szolnok, Tószegi út 21, H-5000
| | - R. Benkő
- Department of Physiology, Hungary Budapest, Tűzoltó utca 37-47, H-1094
| | - L. Hadjadj
- Department of Translational Medicine, Hungary Budapest, Tűzoltó utca 37-47, H-1094
| | - Z. Benyó
- Department of Translational Medicine, Hungary Budapest, Tűzoltó utca 37-47, H-1094
| | - E. M. Horváth
- Department of Physiology, Hungary Budapest, Tűzoltó utca 37-47, H-1094
| | - G. Masszi
- Department of Cardiology, Bajcsy-Zsilinszky Hospital, Hungary Budapest, Maglódi út 89-91, H-1106
| | - S. Várbíró
- Department of Obstetrics and Gynecology, Semmelweis University, Hungary Budapest, Üllői út 78/a, H-1082
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23
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Usman TO, Adeyanju OA, Areola ED, Badmus OO, Oyeyipo IP, Olaniyi KS, Oyabambi AO, Olatunji LA. Acetate causes renoprotection like androgen and mineralocorticoid receptors blockade in testosterone-exposed pregnant rats. Mol Cell Biochem 2021; 476:1861-1870. [PMID: 33479808 DOI: 10.1007/s11010-020-04031-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2020] [Accepted: 12/22/2020] [Indexed: 11/29/2022]
Abstract
The kidney plays a critical role in human health and deviation from its normal function can lead to severe morbidity and mortality. Exposure to excess testosterone in women has been linked to several disorders, including kidney disorder and acting undoubtedly through androgen receptor (AR), whereas the involvement of mineralocorticoid receptor (MR) is unclear. Likewise, the renal effect of sodium acetate (SAc) during late gestational exposure to testosterone is not well known. We hypothesized that SAc or MR blockade would protect the kidney of testosterone-exposed pregnant rats against glutathione and adenosine depletion. Twenty-five pregnant Wistar rats were treated (sc) with olive oil, testosterone propionate (0.5 mg/kg) singly or in combination with SAc (200 mg/kg; p.o.), androgen receptor (AR) blocker, flutamide (Flu; 7.5 mg/kg; p.o.) or (MR) blocker, eplerenone (Eple; 0.5 mg/kg) between gestational days 14 and 19. Glutathione, adenosine and nitric oxide were decreased while uric acid (UA), xanthine oxidase (XO), malondialdehyde (MDA), lactate dehydrogenase activity and free fatty acids were increased in the kidneys of gestational rats exposed to testosterone. Also, plasma urea and creatinine were elevated. SAc and Eple reversed tested testosterone-induced effects in gestational rats. The exposure to testosterone impairs renal antioxidant defense via AR and MR during late gestation in pregnant rats. The study also provides evidence that sodium acetate protects the kidneys of gestational testosterone-exposed rats against defective antioxidant defense in like manner as MR or AR antagonist.
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Affiliation(s)
- Taofeek O Usman
- HOPE Cardiometabolic Research Team & Department of Physiology, College of Health Sciences, University of Ilorin, Ilorin, P.M.B. 1515, Nigeria.,Cardiovascular Unit, Department of Physiology, College of Health Sciences, Osun State University, Osogbo, Nigeria
| | - Oluwaseun A Adeyanju
- HOPE Cardiometabolic Research Team & Department of Physiology, College of Health Sciences, University of Ilorin, Ilorin, P.M.B. 1515, Nigeria.,Department of Physiology, College of Medicine and Health Sciences, Afe Babalola University, Ado-Ekiti, Nigeria
| | - Emmanuel D Areola
- HOPE Cardiometabolic Research Team & Department of Physiology, College of Health Sciences, University of Ilorin, Ilorin, P.M.B. 1515, Nigeria
| | - Olufunto O Badmus
- HOPE Cardiometabolic Research Team & Department of Physiology, College of Health Sciences, University of Ilorin, Ilorin, P.M.B. 1515, Nigeria.,Department of Public Health, Kwara State University, Malete, Nigeria
| | - Ibukun P Oyeyipo
- Cardiovascular Unit, Department of Physiology, College of Health Sciences, Osun State University, Osogbo, Nigeria
| | - Kehinde S Olaniyi
- HOPE Cardiometabolic Research Team & Department of Physiology, College of Health Sciences, University of Ilorin, Ilorin, P.M.B. 1515, Nigeria.,Department of Physiology, College of Medicine and Health Sciences, Afe Babalola University, Ado-Ekiti, Nigeria
| | - Adewumi O Oyabambi
- HOPE Cardiometabolic Research Team & Department of Physiology, College of Health Sciences, University of Ilorin, Ilorin, P.M.B. 1515, Nigeria
| | - Lawrence A Olatunji
- HOPE Cardiometabolic Research Team & Department of Physiology, College of Health Sciences, University of Ilorin, Ilorin, P.M.B. 1515, Nigeria.
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24
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Philbois SV, Facioli TP, Gastaldi AC, Rodrigues JAL, Tank J, Fares TH, Rodrigues KP, Souza HCD. Important differences between hypertensive middle-aged women and men in cardiovascular autonomic control-a critical appraisal. Biol Sex Differ 2021; 12:11. [PMID: 33430973 PMCID: PMC7802327 DOI: 10.1186/s13293-020-00355-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Accepted: 12/26/2020] [Indexed: 11/17/2022] Open
Abstract
Background Normotensive premenopausal women show a vagal predominance of cardiac autonomic modulation, whereas age-matched men show a predominance of sympathetic modulation. However, some women develop systemic arterial hypertension (SAH) even with preserved ovarian function. Our hypothesis is that these women may have cardiovascular autonomic parameters similar to those of hypertensive men, even when subjected to pharmacological treatment. We aimed to investigate cardiovascular autonomic control and baroreflex sensitivity (BRS) in hypertensive premenopausal women and age-matched men. Methods One hundred volunteers between 18 and 45 years of age were assigned to two groups (50 participants each): a hypertensive group including patients with a history of SAH for at least 6 months (25 men and 25 women), who were under treatment with monotherapy (losartan, 25–50 mg/kg); and a normotensive group (25 men and 25 women). Anthropometric, hemodynamic, metabolic, and autonomic cardiovascular assessments were performed focusing on BRS, autonomic modulation of heart rate variability (HRV), and blood pressure variability (BPV). Results On HRV analysis, women showed higher values of high-frequency (HF) oscillations in absolute and normalized units, lower values of low-frequency (LF) in normalized units, and lower LF/HF ratio, as compared with men. When the normotensive and hypertensive groups were compared, hypertensive groups showed lower values of total variance and of LF and HF bands in absolute units. On BRS, hypertensive groups showed lower values than the normotensive group. Conclusion Regardless of blood pressure control through pharmacological treatment, hypertensive patients continued to have reduced HRV compared to normotensive, and hypertensive men had more autonomic impairment than hypertensive premenopausal women.
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Affiliation(s)
- Stella V Philbois
- Laboratory of Exercise Physiology and Cardiovascular Physiotherapy, Department of Health Sciences, Ribeirão Preto Medical School, University of São Paulo, Av. Bandeirantes, 3900, Vila Monte Alegre, Ribeirão Preto, SP, 14049-900, Brazil
| | - Tábata P Facioli
- Laboratory of Exercise Physiology and Cardiovascular Physiotherapy, Department of Health Sciences, Ribeirão Preto Medical School, University of São Paulo, Av. Bandeirantes, 3900, Vila Monte Alegre, Ribeirão Preto, SP, 14049-900, Brazil
| | - Ada C Gastaldi
- Laboratory of Exercise Physiology and Cardiovascular Physiotherapy, Department of Health Sciences, Ribeirão Preto Medical School, University of São Paulo, Av. Bandeirantes, 3900, Vila Monte Alegre, Ribeirão Preto, SP, 14049-900, Brazil
| | - Jhennyfer A L Rodrigues
- Laboratory of Exercise Physiology and Cardiovascular Physiotherapy, Department of Health Sciences, Ribeirão Preto Medical School, University of São Paulo, Av. Bandeirantes, 3900, Vila Monte Alegre, Ribeirão Preto, SP, 14049-900, Brazil
| | - Jens Tank
- Institute of Aerospace Medicine, German Aerospace Center, Cologne, Germany
| | - Thauane H Fares
- Laboratory of Exercise Physiology and Cardiovascular Physiotherapy, Department of Health Sciences, Ribeirão Preto Medical School, University of São Paulo, Av. Bandeirantes, 3900, Vila Monte Alegre, Ribeirão Preto, SP, 14049-900, Brazil
| | - Karine P Rodrigues
- Laboratory of Exercise Physiology and Cardiovascular Physiotherapy, Department of Health Sciences, Ribeirão Preto Medical School, University of São Paulo, Av. Bandeirantes, 3900, Vila Monte Alegre, Ribeirão Preto, SP, 14049-900, Brazil
| | - Hugo C D Souza
- Laboratory of Exercise Physiology and Cardiovascular Physiotherapy, Department of Health Sciences, Ribeirão Preto Medical School, University of São Paulo, Av. Bandeirantes, 3900, Vila Monte Alegre, Ribeirão Preto, SP, 14049-900, Brazil.
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25
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Costa TJ, Barros PR, Arce C, Santos JD, da Silva-Neto J, Egea G, Dantas AP, Tostes RC, Jiménez-Altayó F. The homeostatic role of hydrogen peroxide, superoxide anion and nitric oxide in the vasculature. Free Radic Biol Med 2021; 162:615-635. [PMID: 33248264 DOI: 10.1016/j.freeradbiomed.2020.11.021] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Revised: 11/08/2020] [Accepted: 11/19/2020] [Indexed: 02/07/2023]
Abstract
Reactive oxygen and nitrogen species are produced in a wide range of physiological reactions that, at low concentrations, play essential roles in living organisms. There is a delicate equilibrium between formation and degradation of these mediators in a healthy vascular system, which contributes to maintaining these species under non-pathological levels to preserve normal vascular functions. Antioxidants scavenge reactive oxygen and nitrogen species to prevent or reduce damage caused by excessive oxidation. However, an excessive reductive environment induced by exogenous antioxidants may disrupt redox balance and lead to vascular pathology. This review summarizes the main aspects of free radical biochemistry (formation, sources and elimination) and the crucial actions of some of the most biologically relevant and well-characterized reactive oxygen and nitrogen species (hydrogen peroxide, superoxide anion and nitric oxide) in the physiological regulation of vascular function, structure and angiogenesis. Furthermore, current preclinical and clinical evidence is discussed on how excessive removal of these crucial responses by exogenous antioxidants (vitamins and related compounds, polyphenols) may perturb vascular homeostasis. The aim of this review is to provide information of the crucial physiological roles of oxidation in the endothelium, vascular smooth muscle cells and perivascular adipose tissue for developing safer and more effective vascular interventions with antioxidants.
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Affiliation(s)
- Tiago J Costa
- Pharmacology Department, Ribeirao Preto Medical School, University of São Paulo, Brazil.
| | | | - Cristina Arce
- Department of Biomedical Sciences, University of Barcelona School of Medicine and Health Sciences, Barcelona, Spain; Institut d'Investigacions Biomédiques August Pi i Sunyer (IDIBAPS)-University of Barcelona, Barcelona, Spain; Institut de Nanociencies i Nanotecnologia (IN2UB), University of Barcelona, Barcelona, Spain
| | | | - Júlio da Silva-Neto
- Pharmacology Department, Ribeirao Preto Medical School, University of São Paulo, Brazil
| | - Gustavo Egea
- Department of Biomedical Sciences, University of Barcelona School of Medicine and Health Sciences, Barcelona, Spain; Institut d'Investigacions Biomédiques August Pi i Sunyer (IDIBAPS)-University of Barcelona, Barcelona, Spain; Institut de Nanociencies i Nanotecnologia (IN2UB), University of Barcelona, Barcelona, Spain
| | - Ana Paula Dantas
- Institut Clínic del Tòrax, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - Rita C Tostes
- Pharmacology Department, Ribeirao Preto Medical School, University of São Paulo, Brazil
| | - Francesc Jiménez-Altayó
- Department of Pharmacology, Therapeutics and Toxicology, Neuroscience Institute, School of Medicine, Universitat Autònoma de Barcelona, Barcelona, Spain.
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Ahmadpour D, Grange-Messent V. Involvement of Testosterone Signaling in the Integrity of the Neurovascular Unit in the Male: Review of Evidence, Contradictions, and Hypothesis. Neuroendocrinology 2021; 111:403-420. [PMID: 32512571 DOI: 10.1159/000509218] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Accepted: 06/08/2020] [Indexed: 11/19/2022]
Abstract
Age-related central nervous system function decline and increased susceptibility of females compared to males with respect to prevalence of several neurodegenerative and neuropsychiatric diseases are both based on the principle that hormonal factors could be involved. These cerebral disorders are characterized by an alteration of blood-brain barrier (BBB) properties and chronic neuroinflammation, which lead to disease progression. Neuroinflammation, in turn, contributes to BBB dysfunction. The BBB and its environment, called the neurovascular unit (NVU), are crucial for cerebral homeostasis and neuronal function. Interestingly, sex steroids influence BBB properties and modulate neuroinflammatory responses. To date however, the majority of work reported has focused on the effects of estrogens on BBB function and neuroinflammation in female mammals. In contrast, the effects of testosterone signaling on the NVU in males are still poorly studied. The aim of this review was to summarize and discuss the literature, providing insights and contradictions to highlight hypothesis and the need for further investigations.
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Affiliation(s)
- Delnia Ahmadpour
- Sorbonne Université, INSERM U1130, CNRS UMR 8246, Neuroscience Paris-Seine, Institut de Biologie Paris-Seine, Paris, France
| | - Valérie Grange-Messent
- Sorbonne Université, INSERM U1130, CNRS UMR 8246, Neuroscience Paris-Seine, Institut de Biologie Paris-Seine, Paris, France,
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27
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Rouver WDN, Ferreira CRS, Delgado NTB, Santos RLD. Surgically induced deficiency of sex hormones modulates coronary vasodilation by estradiol in hypertension. J Basic Clin Physiol Pharmacol 2020; 32:215-223. [PMID: 34005843 DOI: 10.1515/jbcpp-2020-0042] [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: 02/07/2020] [Accepted: 10/30/2020] [Indexed: 11/15/2022]
Abstract
OBJECTIVES The effect of oestrogen in hormonal dysfunction is not clear, especially in the coronary vascular bed. This study aimed at estradiol action (E2) in the coronary vascular bed from sham-operated and gonadectomized female and male spontaneously hypertensive rats (SHRs). METHODS Male and female SHRs had their mean arterial pressure (MAP) and baseline coronary perfusion pressure (CPP) determined. The effects of E2 (10 μM) were evaluated in isolated hearts by in bolus infusion before and after endothelium denudation (0.25 μM sodium deoxycholate) or perfusion with 100 μM NG-nitro-l-arginine methyl ester (L-NAME), 2.8 μM indomethacin, 0.75 μM clotrimazole, L-NAME after endothelium denudation, L-NAME plus indomethacin, or 4 mM tetraethylammonium (TEA). RESULTS MAP was higher in males than in females, with gonadectomy increasing in females and reducing in males. CPP was higher in female group, remaining unaltered after gonadectomy. E2-induced vasorelaxation was observed in all groups, with no differences having been found between sexes even after gonadectomy. Perfusion with TEA, L-NAME, L-NAME plus indomethacin, and L-NAME after endothelium removal attenuated the relaxing response in all groups. Clotrimazole inhibited vasorelaxation only in female groups, and indomethacin did so only in gonadectomized groups. Endothelium participation was confirmed in female groups and in the gonadectomized male group. CONCLUSIONS Our results indicated that the vasodilator effect of E2 was mediated by an indirect mechanism - via endothelium - as well as by direct action - via vascular smooth muscle - in both groups. The characterization of these mechanisms in coronary arteries might shed light on the functional basis of hormonal dysfunction symptoms in hypertension.
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Affiliation(s)
- Wender do Nascimento Rouver
- Department of Physiological Science, Federal University of Espirito Santo - UFES, Vitoria, Espirito Santo, Brazil
| | | | | | - Roger Lyrio Dos Santos
- Department of Physiological Science, Federal University of Espirito Santo - UFES, Vitoria, Espirito Santo, Brazil
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Smith SJ, Lopresti AL, Teo SYM, Fairchild TJ. Examining the Effects of Herbs on Testosterone Concentrations in Men: A Systematic Review. Adv Nutr 2020; 12:744-765. [PMID: 33150931 PMCID: PMC8166567 DOI: 10.1093/advances/nmaa134] [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: 07/05/2020] [Revised: 08/05/2020] [Accepted: 09/21/2020] [Indexed: 12/20/2022] Open
Abstract
Testosterone concentrations in males tend to decline with advancing age. Low testosterone, also known as androgen deficiency (AD), is associated with an increased risk of morbidity and mortality. Currently, the primary treatment for AD is testosterone replacement therapy (TRT), which may exacerbate pre-existing medical conditions. Therefore, the use of alternative options, such as herbs, spices, plants, or their extracts, has been explored as a potential treatment option for AD. The aim of this systematic review was to summarize and critically evaluate randomized controlled trials published on the efficacy of single herbal ingredients on testosterone concentrations, in addition to its fractions or binding proteins, in men (≥18 y). From the 4 databases searched, there were 13 herbs identified in 32 studies, published between 2001 and 2019. The main findings of this review indicate that 2 herbal extracts, fenugreek seed extracts and ashwagandha root and root/leaf extracts, have positive effects on testosterone concentrations in men. Also, some evidence exists for another herb and herbal extract, Asian red ginseng and forskohlii root extract. Overall, 9 out of 32 studies demonstrated statistically significant increases in testosterone concentrations. Moreover, 6 studies out of 32 were judged as having a low risk of bias. Current evidence is largely based on young, nonclinical populations, with 16 out of 32 studies using men <40 y of age. Conclusions are moderated by the paucity of research for many herbs, the variation in dosages and extracts used, small sample sizes, and the heterogeneity of study characteristics. Also, further research is required before definitive conclusions on efficacy and safety can be made. This systematic review was registered at PROSPERO as CRD42020173623.
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Affiliation(s)
| | - Adrian L Lopresti
- Clinical Research Australia, Perth, Western Australia, Australia,College of Science, Health, Engineering and Education, Murdoch University, Perth, Western Australia, Australia
| | - Shaun Y M Teo
- College of Science, Health, Engineering and Education, Murdoch University, Perth, Western Australia, Australia
| | - Timothy J Fairchild
- College of Science, Health, Engineering and Education, Murdoch University, Perth, Western Australia, Australia
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Bonato M, Corrà F, Bellio M, Guidolin L, Tallandini L, Irato P, Santovito G. PFAS Environmental Pollution and Antioxidant Responses: An Overview of the Impact on Human Field. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:E8020. [PMID: 33143342 PMCID: PMC7663035 DOI: 10.3390/ijerph17218020] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/04/2020] [Revised: 10/23/2020] [Accepted: 10/27/2020] [Indexed: 01/09/2023]
Abstract
Due to their unique properties, perfluorinated substances (PFAS) are widely used in multiple industrial and commercial applications, but they are toxic for animals, humans included. This review presents some available data on the PFAS environmental distribution in the world, and in particular in Europe and in the Veneto region of Italy, where it has become a serious problem for human health. The consumption of contaminated food and drinking water is considered one of the major source of exposure for humans. Worldwide epidemiological studies report the negative effects that PFAS have on human health, due to environmental pollution, including infertility, steroid hormone perturbation, thyroid, liver and kidney disorders, and metabolic disfunctions. In vitro and in vivo researches correlated PFAS exposure to oxidative stress effects (in mammals as well as in other vertebrates of human interest), produced by a PFAS-induced increase of reactive oxygen species formation. The cellular antioxidant defense system is activated by PFAS, but it is only partially able to avoid the oxidative damage to biomolecules.
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Affiliation(s)
| | | | | | | | | | - Paola Irato
- Department of Biology, University of Padova, 35131 Padova, Italy; (M.B.); (F.C.); (M.B.); (L.G.); (L.T.)
| | - Gianfranco Santovito
- Department of Biology, University of Padova, 35131 Padova, Italy; (M.B.); (F.C.); (M.B.); (L.G.); (L.T.)
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Jósvai A, Török M, Mátrai M, Hetthéssy J, Monori-Kiss A, Makk J, Székács B, Nádasy GL, Várbíró S. Effects of Testosterone Deficiency and Angiotensin II-Induced Hypertension on the Biomechanics of Intramural Coronary Arteries. J Sex Med 2020; 17:2322-2330. [PMID: 33067160 DOI: 10.1016/j.jsxm.2020.09.003] [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: 06/01/2020] [Revised: 08/14/2020] [Accepted: 09/12/2020] [Indexed: 10/23/2022]
Abstract
BACKGROUND Andropause and hypertension also increase the risk of coronary artery damage. AIM To investigate the effect of testosterone deficiency and hypertension on intramural coronary vessels. METHODS 4 groups of 8-week-old Sprague-Dawley rats were studied: control male (Co, n=10), orchidectomized male (OCT, n=13), angiotensin (AII) hypertensive male (AII, n=10), and AII hypertensive and OCT (AII + OCT, n=8). Surgical orchidectomy was performed, and an osmotic minipump was inserted for chronic angiotensin II infusion (100 ng/min/kg). After 4 weeks, spontaneous tone and biomechanical properties of the intramural coronary resistance artery were investigated in vitro, by pressure microarteriography. OUTCOMES Morphology and biomechanics of the intramural coronaries were evaluated: the outer diameter, wall thickness-to-lumen diameter ratio, and tangential wall stress in the contracted and relaxed states. RESULTS The outer diameter was reduced in OCT and AII + OCT groups (on 50 mmHg 315 ± 20 Co; 237 ± 21 OCT; 291 ± 16 AII, and 166 ± 12 μm AII + OCT). The increased wall thickness-to-lumen diameter ratio resulted in lower tangential wall stress in AII + OCT rats (on 50 mmHg 19 ± 2 Co; 24 ± OCT; 26 ± 5 AII, and 9 ± 1 kPa AII + OCT). Spontaneous tone was increased in the hypertensive rats (AII and AII + OCT groups) (on 50 mmHg 7.7 ± 1.8 Co; 6.1 ± 1.4 OCT; 14.5 ± 3.0 AII, and 17.4 ± 4.1 % AII + OCT). CLINICAL IMPLICATIONS Andropause alone can be considered as a cardiovascular risk factor that will further exacerbate vascular damage in hypertension. STRENGTHS & LIMITATIONS A limitation of our study is that it was performed on relatively young rats, and the conclusions might not apply to coronary remodelling in older animals with slower adaptation processes. CONCLUSIONS Testosterone deficiency and hypertension damage the mechanical adaptation of the vessel wall additively: double noxa caused inward eutrophic remodeling and increased tone. Jósvai A, Török M, Mátrai M, et al. Effects of Testosterone Deficiency and Angiotensin II-Induced Hypertension on the Biomechanics of Intramural Coronary Arteries. J Sex Med 2020;17:2322-2330.
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Affiliation(s)
- Attila Jósvai
- Department of Neurosurgery, Hungarian Defence Forces Medical Centre, Budapest, Hungary.
| | - Marianna Török
- Department of Obstetrics and Gynecology, Semmelweis University, Budapest, Hungary
| | - Máté Mátrai
- Institute of Clinical Experimental Research, Semmelweis University, Budapest, Hungary
| | - Judit Hetthéssy
- Department of Orthopedics, Semmelweis University, Budapest, Hungary
| | - Anna Monori-Kiss
- Institute of Clinical Experimental Research, Semmelweis University, Budapest, Hungary
| | - Jennifer Makk
- Institute of Clinical Experimental Research, Semmelweis University, Budapest, Hungary
| | - Béla Székács
- 2nd Department Internal Medicine, Department Section of Geriatrics, Szt Imre Teaching Hospital, Budapest, Hungary
| | - György L Nádasy
- Department of Physiology, Semmelweis University, Budapest, Hungary
| | - Szabolcs Várbíró
- Department of Obstetrics and Gynecology, Semmelweis University, Budapest, Hungary
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Yosten GLC. AJP-Regulatory, Integrative and Comparative Physiology: Looking Toward the Future. Am J Physiol Regul Integr Comp Physiol 2020; 319:R82-R86. [DOI: 10.1152/ajpregu.00104.2020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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32
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Lopresti AL, Drummond PD, Smith SJ. A Randomized, Double-Blind, Placebo-Controlled, Crossover Study Examining the Hormonal and Vitality Effects of Ashwagandha ( Withania somnifera) in Aging, Overweight Males. Am J Mens Health 2020; 13:1557988319835985. [PMID: 30854916 PMCID: PMC6438434 DOI: 10.1177/1557988319835985] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Ashwagandha ( Withania somnifera) is a herb commonly used in Ayurvedic medicine to promote youthful vigor, enhance muscle strength and endurance, and improve overall health. In this 16-week, randomized, double-blind, placebo-controlled, crossover study, its effects on fatigue, vigor, and steroid hormones in aging men were investigated. Overweight men aged 40-70 years, with mild fatigue, were given a placebo or an ashwagandha extract (Shoden beads, delivering 21 mg of withanolide glycosides a day) for 8 weeks. Outcome measures included the Profile of Mood States, Short Form (POMS-SF), Aging Males' Symptoms (AMS) questionnaire, and salivary levels of DHEA-S, testosterone, cortisol, and estradiol. Fifty-seven participants were enrolled, with 50 people completing the first 8-week period of the trial and 43 completing all 16 weeks. Improvements in fatigue, vigor, and sexual and psychological well-being were reported over time, with no statistically significant between-group differences. Ashwagandha intake was associated with an 18% greater increase in DHEA-S ( p = .005) and 14.7% greater increase in testosterone ( p = .010) compared to the placebo. There were no significant between-group differences in cortisol and estradiol. In conclusion, the intake of a standardized ashwagandha extract (Shoden beads) for 8 weeks was associated with increased levels of DHEA-S and testosterone, although no significant between-group differences were found in cortisol, estradiol, fatigue, vigor, or sexual well-being. Further studies with larger sample sizes are required to substantiate the current findings.
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Affiliation(s)
- Adrian L Lopresti
- 1 School of Psychology and Exercise Science, Murdoch University, Perth, Western Australia, Australia.,2 Clinical Research Australia, Duncraig, Western Australia, Australia
| | - Peter D Drummond
- 1 School of Psychology and Exercise Science, Murdoch University, Perth, Western Australia, Australia
| | - Stephen J Smith
- 1 School of Psychology and Exercise Science, Murdoch University, Perth, Western Australia, Australia.,2 Clinical Research Australia, Duncraig, Western Australia, Australia
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Cruz-Topete D, Dominic P, Stokes KY. Uncovering sex-specific mechanisms of action of testosterone and redox balance. Redox Biol 2020; 31:101490. [PMID: 32169396 PMCID: PMC7212492 DOI: 10.1016/j.redox.2020.101490] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Revised: 02/17/2020] [Accepted: 03/01/2020] [Indexed: 12/11/2022] Open
Abstract
The molecular and pharmacological manipulation of the endogenous redox system is a promising therapy to limit myocardial damage after a heart attack; however, antioxidant therapies have failed to fully establish their cardioprotective effects, suggesting that additional factors, including antioxidant system interactions with other molecular pathways, may alter the pharmacological effects of antioxidants. Since gender differences in cardiovascular disease (CVD) are prevalent, and sex is an essential determinant of the response to oxidative stress, it is of particular interest to understand the effects of sex hormone signaling on the activity and expression of cellular antioxidants and the pharmacological actions of antioxidant therapies. In the present review, we briefly summarize the current understanding of testosterone effects on the modulation of the endogenous antioxidant systems in the CV system, cardiomyocytes, and the heart. We also review the latest research on redox balance and sexual dimorphism, with particular emphasis on the role of the natural antioxidant system glutathione (GSH) in the context of myocardial infarction, and the pro- and antioxidant effects of testosterone signaling via the androgen receptor (AR) on the heart. Finally, we discuss future perspectives regarding the potential of using combing antioxidant and testosterone replacement therapies to protect the aging myocardium.
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Affiliation(s)
- Diana Cruz-Topete
- Department of Molecular and Cellular Physiology, Shreveport, LA, USA; Center for Cardiovascular Diseases and Sciences, Shreveport, LA, USA.
| | - Paari Dominic
- Center for Cardiovascular Diseases and Sciences, Shreveport, LA, USA; Department of Cardiology, LSU Health Sciences Center, Shreveport, LA, USA
| | - Karen Y Stokes
- Department of Molecular and Cellular Physiology, Shreveport, LA, USA; Center for Cardiovascular Diseases and Sciences, Shreveport, LA, USA
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34
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Samson WK. Looking Back on Seven Years of Regulatory, Integrative and Comparative Physiology. Am J Physiol Regul Integr Comp Physiol 2020; 318:R565-R566. [PMID: 32048873 DOI: 10.1152/ajpregu.00017.2020] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Willis K Samson
- Department of Pharmacology and Physiology, Saint Louis University School of Medicine, St. Louis, Missouri
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35
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Smith C, Contreras-Garza J, Cunningham RL, Wong JM, Vann PH, Metzger D, Kasanga E, Oppong-Gyebi A, Sumien N, Schreihofer DA. Chronic Testosterone Deprivation Sensitizes the Middle-Aged Rat Brain to Damaging Effects of Testosterone Replacement. Neuroendocrinology 2020; 110:914-928. [PMID: 31671430 DOI: 10.1159/000504445] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Accepted: 10/30/2019] [Indexed: 11/19/2022]
Abstract
INTRODUCTION An increasing number of middle-aged men are being screened for low testosterone levels and the number of prescriptions for various forms of testosterone replacement therapy (TRT) has increased dramatically over the last 10 years. However, the safety of TRT has come into question with some studies suggesting increased morbidity and mortality. OBJECTIVE Because the benefits of estrogen replacement in postmenopausal women and ovariectomized rodents are lost if there is an extended delay between estrogen loss and replacement, we hypothesized that TRT may also be sensitive to delayed replacement. METHODS We compared the effects of testosterone replacement after short-term (2 weeks) and long-term testosterone deprivation (LTTD; 10 weeks) in middle-aged male rats on cerebral ischemia, oxidative stress, and cognitive function. We hypothesized that LTTD would increase oxidative stress levels and abrogate the beneficial effects of TRT. RESULTS Hypogonadism itself and TRT after short-term castration did not affect stroke outcome compared to intact rats. However, after long-term hypogonadism in middle-aged male Fischer 344 rats, TRT exacerbated the detrimental behavioral effects of experimental focal cerebral ischemia, whereas this detrimental effect was prevented by administration of the free-radical scavenger tempol, suggesting that TRT exacerbates oxidative stress. In contrast, TRT improved cognitive performance in non-stroked rats regardless of the length of hypogonadism. In the Morris water maze, peripheral oxidative stress was highly associated with decreased cognitive ability. CONCLUSIONS Taken together, these data suggest that TRT after long-term hypogonadism can exacerbate functional recovery after focal cerebral ischemia, but in the absence of injury can enhance cognition. Both of these effects are modulated by oxidative stress levels.
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Affiliation(s)
- Charity Smith
- Department of Pharmacology and Neuroscience, University of North Texas Health Science Center, Fort Worth, Texas, USA
| | - Jo Contreras-Garza
- Department of Pharmacology and Neuroscience, University of North Texas Health Science Center, Fort Worth, Texas, USA
- Institute for Healthy Aging, University of North Texas Health Science Center, Fort Worth, Texas, USA
| | - Rebecca L Cunningham
- Institute for Healthy Aging, University of North Texas Health Science Center, Fort Worth, Texas, USA
- Department of Physiology and Anatomy, University of North Texas Health Science Center, Fort Worth, Texas, USA
| | - Jessica M Wong
- Department of Pharmacology and Neuroscience, University of North Texas Health Science Center, Fort Worth, Texas, USA
- Institute for Healthy Aging, University of North Texas Health Science Center, Fort Worth, Texas, USA
| | - Philip H Vann
- Department of Pharmacology and Neuroscience, University of North Texas Health Science Center, Fort Worth, Texas, USA
- Institute for Healthy Aging, University of North Texas Health Science Center, Fort Worth, Texas, USA
| | - Daniel Metzger
- Department of Pharmacology and Neuroscience, University of North Texas Health Science Center, Fort Worth, Texas, USA
- Institute for Healthy Aging, University of North Texas Health Science Center, Fort Worth, Texas, USA
| | - Ella Kasanga
- Department of Pharmacology and Neuroscience, University of North Texas Health Science Center, Fort Worth, Texas, USA
- Institute for Healthy Aging, University of North Texas Health Science Center, Fort Worth, Texas, USA
| | - Anthony Oppong-Gyebi
- Department of Pharmacology and Neuroscience, University of North Texas Health Science Center, Fort Worth, Texas, USA
- Institute for Healthy Aging, University of North Texas Health Science Center, Fort Worth, Texas, USA
| | - Nathalie Sumien
- Department of Pharmacology and Neuroscience, University of North Texas Health Science Center, Fort Worth, Texas, USA
- Institute for Healthy Aging, University of North Texas Health Science Center, Fort Worth, Texas, USA
| | - Derek A Schreihofer
- Department of Pharmacology and Neuroscience, University of North Texas Health Science Center, Fort Worth, Texas, USA,
- Institute for Healthy Aging, University of North Texas Health Science Center, Fort Worth, Texas, USA,
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Turkson S, Kloster A, Hamilton PJ, Neigh GN. Neuroendocrine drivers of risk and resilience: The influence of metabolism & mitochondria. Front Neuroendocrinol 2019; 54:100770. [PMID: 31288042 PMCID: PMC6886586 DOI: 10.1016/j.yfrne.2019.100770] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Revised: 06/20/2019] [Accepted: 07/03/2019] [Indexed: 02/07/2023]
Abstract
The manifestation of risk versus resilience has been considered from varying perspectives including genetics, epigenetics, early life experiences, and type and intensity of the challenge with which the organism is faced. Although all of these factors are central to determining risk and resilience, the current review focuses on what may be a final common pathway: metabolism. When an organism is faced with a perturbation to the environment, whether internal or external, appropriate energy allocation is essential to resolving the divergence from equilibrium. This review examines the potential role of metabolism in the manifestation of stress-induced neural compromise. In addition, this review details the current state of knowledge on neuroendocrine factors which are poised to set the tone of the metabolic response to a systemic challenge. The goal is to provide an essential framework for understanding stress in a metabolic context and appreciation for key neuroendocrine signals.
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Affiliation(s)
- Susie Turkson
- Department of Anatomy & Neurobiology, Virginia Commonwealth University, Richmond, VA, United States
| | - Alix Kloster
- Department of Anatomy & Neurobiology, Virginia Commonwealth University, Richmond, VA, United States
| | - Peter J Hamilton
- Department of Anatomy & Neurobiology, Virginia Commonwealth University, Richmond, VA, United States
| | - Gretchen N Neigh
- Department of Anatomy & Neurobiology, Virginia Commonwealth University, Richmond, VA, United States.
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Yu Y, Wei SG, Weiss RM, Felder RB. Sex differences in the central and peripheral manifestations of ischemia-induced heart failure in rats. Am J Physiol Heart Circ Physiol 2019; 316:H70-H79. [PMID: 30289294 PMCID: PMC6383354 DOI: 10.1152/ajpheart.00499.2018] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Revised: 09/24/2018] [Accepted: 09/26/2018] [Indexed: 11/22/2022]
Abstract
Sex differences in the presentation, outcome, and responses to treatment of systolic heart failure (HF) have been reported. In the present study, we examined the effect of sex on central neural mechanisms contributing to neurohumoral excitation and its peripheral manifestations in rats with HF. Male and female Sprague-Dawley rats underwent coronary artery ligation (CL) to induce HF. Age-matched rats served as controls. Ischemic zone and left ventricular function were similar 24 h and 4 wk after CL. Female rats with HF had a lower mortality rate and less hemodynamic compromise, pulmonary congestion, and right ventricular remodeling 4 wk after CL. Plasma angiotensin II (ANG II), arginine vasopressin (AVP), and norepinephrine levels were increased in HF rats in both sexes, but AVP and norepinephrine levels increased less in female rats. In the hypothalamic paraventricular nucleus, a key cardiovascular-related nucleus contributing to neurohumoral excitation in HF, mRNA levels for the proinflammatory cytokines tumor necrosis factor-α and interleukin-1β as well as cyclooxygenase-2 and the ANG II type 1a receptor were increased in HF rats of both sexes, but less so in female rats. Angiotensin-converting enzyme 2 protein levels increased in female HF rats but decreased in male HF rats. mRNA levels of AVP were lower in female rats in both control and HF groups compared with the respective male groups. Activation of extracellular signal-regulated protein kinases 1 and 2 increased similarly in both sexes in HF. The results suggest that female HF rats have less central neural excitation and less associated hemodynamic compromise than male HF rats with the same degree of initial ischemic cardiac injury. NEW & NOTEWORTHY Sex differences in the presentation and responses to treatment of heart failure (HF) are widely recognized, but the underlying mechanisms are poorly understood. The present study describes sex differences in the central nervous system mechanisms that drive neurohumoral excitation in ischemia-induced HF. Female rats had a less intense central neurochemical response to HF and experienced less hemodynamic compromise. Sex hormones may contribute to these differences in the central and peripheral adaptations to HF.
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Affiliation(s)
- Yang Yu
- Department of Internal Medicine, Roy J. and Lucille A. Carver College of Medicine, University of Iowa , Iowa City, Iowa
| | - Shun-Guang Wei
- Department of Internal Medicine, Roy J. and Lucille A. Carver College of Medicine, University of Iowa , Iowa City, Iowa
| | - Robert M Weiss
- Department of Internal Medicine, Roy J. and Lucille A. Carver College of Medicine, University of Iowa , Iowa City, Iowa
| | - Robert B Felder
- Department of Internal Medicine, Roy J. and Lucille A. Carver College of Medicine, University of Iowa , Iowa City, Iowa
- Research Service, Veterans Affairs Medical Center , Iowa City, Iowa
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38
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Bjugstad KB, Gutowski P, Pekarek J, Bourg P, Mains CW, Bar-Or D. Redox Changes in Amateur Race Car Drivers Before and After Racing. Sports Med Int Open 2018; 1:E212-E219. [PMID: 30539110 PMCID: PMC6226088 DOI: 10.1055/s-0043-119065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2017] [Revised: 07/27/2017] [Accepted: 08/17/2017] [Indexed: 10/25/2022] Open
Abstract
Despite the unique opportunity race car driving provides to study exercise in extreme conditions, the sport of racing is under-represented. A better understanding of how racing changes physiological measures combined with driver demographics may help reduce driver risks and expand the field of driver science. This study charted the changes in heart rate, body temperature, blood pressure, static oxidation reduction potential (sORP), and antioxidant capacity in drivers before and after racing (n=23). The interaction between racing and driver characteristics on physiological variables were evaluated. Heart rate, body temperature, and sORP were elevated after racing (P<0.05). Age, cockpit temperature, experience, and speed did not correlate with physiological or oxidative measures (P>0.05). Elevated post-race sORP values were associated with higher pre-race systolic blood pressure and lower antioxidant capacity (P<0.05). We conclude that racing alters the redox response in drivers and that drivers' pre-race systolic blood pressure and antioxidant capacity can further alter it. A better understanding of the physical and oxidative changes which result from racing may help minimize the unique risks.
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Affiliation(s)
| | - Paul Gutowski
- St. Anthony Hospital, Trauma Research, Lakewood, United States
| | | | - Pamela Bourg
- St. Anthony Hospital, Trauma Research, Lakewood, United States
| | - Charles W Mains
- St. Anthony Hospital, Trauma Research, Lakewood, United States
| | - David Bar-Or
- Swedish Medical Center, Trauma Research, Englewood, United States
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Chaudhari S, Cushen SC, Osikoya O, Jaini PA, Posey R, Mathis KW, Goulopoulou S. Mechanisms of Sex Disparities in Cardiovascular Function and Remodeling. Compr Physiol 2018; 9:375-411. [PMID: 30549017 DOI: 10.1002/cphy.c180003] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Epidemiological studies demonstrate disparities between men and women in cardiovascular disease prevalence, clinical symptoms, treatments, and outcomes. Enrollment of women in clinical trials is lower than men, and experimental studies investigating molecular mechanisms and efficacy of certain therapeutics in cardiovascular disease have been primarily conducted in male animals. These practices bias data interpretation and limit the implication of research findings in female clinical populations. This review will focus on the biological origins of sex differences in cardiovascular physiology, health, and disease, with an emphasis on the sex hormones, estrogen and testosterone. First, we will briefly discuss epidemiological evidence of sex disparities in cardiovascular disease prevalence and clinical manifestation. Second, we will describe studies suggesting sexual dimorphism in normal cardiovascular function from fetal life to older age. Third, we will summarize and critically discuss the current literature regarding the molecular mechanisms underlying the effects of estrogens and androgens on cardiac and vascular physiology and the contribution of these hormones to sex differences in cardiovascular disease. Fourth, we will present cardiovascular disease risk factors that are positively associated with the female sex, and thus, contributing to increased cardiovascular risk in women. We conclude that inclusion of both men and women in the investigation of the role of estrogens and androgens in cardiovascular physiology will advance our understanding of the mechanisms underlying sex differences in cardiovascular disease. In addition, investigating the role of sex-specific factors in the development of cardiovascular disease will reduce sex and gender disparities in the treatment and diagnosis of cardiovascular disease. © 2019 American Physiological Society. Compr Physiol 9:375-411, 2019.
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Affiliation(s)
- Sarika Chaudhari
- Department of Physiology and Anatomy, University of North Texas Health Science Center, Fort Worth, Texas, USA
| | - Spencer C Cushen
- Department of Physiology and Anatomy, University of North Texas Health Science Center, Fort Worth, Texas, USA
| | - Oluwatobiloba Osikoya
- Department of Physiology and Anatomy, University of North Texas Health Science Center, Fort Worth, Texas, USA
| | - Paresh A Jaini
- Department of Physiology and Anatomy, University of North Texas Health Science Center, Fort Worth, Texas, USA
| | - Rachel Posey
- Department of Physiology and Anatomy, University of North Texas Health Science Center, Fort Worth, Texas, USA
| | - Keisa W Mathis
- Department of Physiology and Anatomy, University of North Texas Health Science Center, Fort Worth, Texas, USA
| | - Styliani Goulopoulou
- Department of Physiology and Anatomy, University of North Texas Health Science Center, Fort Worth, Texas, USA
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Olatunji LA, Areola ED, Badmus OO. Endoglin inhibition by sodium acetate and flutamide ameliorates cardiac defective G6PD-dependent antioxidant defense in gestational testosterone-exposed rats. Biomed Pharmacother 2018; 107:1641-1647. [PMID: 30257382 DOI: 10.1016/j.biopha.2018.08.133] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2018] [Revised: 08/22/2018] [Accepted: 08/25/2018] [Indexed: 02/06/2023] Open
Abstract
Gestational androgen excess has been implicated in the development of cardiac dysfunction with poor mechanistic delineation. The role of sodium acetate on cardiac uric acid (UA) production and glucose-6-phosphate dehydrogenase (G6PD)-dependent antioxidant defense in pregnancy is not known. The study therefore sought to test the hypothesis that rats exposed to elevated testosterone in late pregnancy would have increased cardiac UA production and defective G6PD-dependent antioxidant defense. We also hypothesized that sodium acetate (SAc) or androgen receptor blocker, flutamide (Flu) would ameliorate these effects through endoglin inhibition. Twenty-four pregnant Wistar rats were treated (sc) with olive oil, testosterone propionate (0.5 mg/kg) singly or in combination with SAc (200 mg/kg; po) or Flu (7.5 mg/kg; po) in the late gestation between gestational day 14 and 19. The results showed that in the late gestation, testosterone exposure led to increased plasma and cardiac endoglin. In the heart of rats exposed to gestational testosterone there were elevated lactate dehydrogenase, adenosine deaminase, xanthine oxidase, uric acid (UA), cardiac injury markers and decreased G6PD-dependent antioxidant defense. However, either SAc or Flu comparably ameliorated these testosterone-induced effects. The data from the present study revealed that testosterone exposure in the late gestation causes elevated cardiac Eng that is accompanied by increased UA production and defective G6PD-dependent anti-oxidant defenses. Besides, the findings also suggest that the inhibitory effect of SAc or Flu on endoglin attenuates UA production and enhances the G6PD-dependent anti-oxidant barrier, thereby implying that endoglin may be a potentially novel therapeutic intervention for cardiac dysfunction particularly in pregnancy.
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Affiliation(s)
- Lawrence A Olatunji
- HOPE Cardiometabolic Research Team and Department of Physiology, College of Health Sciences, University of Ilorin, Nigeria.
| | - Emmanuel D Areola
- HOPE Cardiometabolic Research Team and Department of Physiology, College of Health Sciences, University of Ilorin, Nigeria
| | - Olufunto O Badmus
- HOPE Cardiometabolic Research Team and Department of Physiology, College of Health Sciences, University of Ilorin, Nigeria; Department of Public Health, Kwara State University, Malete, Nigeria
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Testosterone alleviates mitochondrial ROS accumulation and mitochondria-mediated apoptosis in the gastric mucosa of orchiectomized rats. Arch Biochem Biophys 2018; 649:53-59. [DOI: 10.1016/j.abb.2018.05.002] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2018] [Revised: 04/28/2018] [Accepted: 05/03/2018] [Indexed: 01/25/2023]
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Production of functional human CuZn-SOD and EC-SOD in bitransgenic cloned goat milk. Transgenic Res 2018; 27:343-354. [PMID: 29926349 DOI: 10.1007/s11248-018-0080-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2018] [Accepted: 05/26/2018] [Indexed: 12/16/2022]
Abstract
Human copper/zinc superoxide dismutase (CuZn-SOD) and extracellular superoxide dismutase (EC-SOD) are two superoxide dismutases that scavenge reactive oxygen species (ROS). Their biological role of eliminating oxidative stress caused by excessive ROS levels in living organisms has been utilized in medical treatment, preventing skin photoaging and food preservation. In this study, we employed two sequences that encode human CuZn-SOD and EC-SOD, along with goat beta-casein 5' and 3' regulatory elements, to construct mammary gland-specific expression vectors. Bitransgenic goats were generated using somatic cell nuclear transfer (SCNT), which employed co-transfection to generate bitransgenic goat fetal fibroblast cells as donor cells, and the expression of human CuZn-SOD and EC-SOD and their biological activities were assayed in the milk. PCR and Southern blot analysis confirmed that the cloned goat harbors both hCuZn-SOD and hEC-SOD transgenes. rhCuZn-SOD and rhEC-SOD were expressed in the mammary glands of bitransgenic goat, as determined by western blotting. The expression levels were 100.14 ± 5.09 mg/L for rhCuZn-SOD and 279.10 ± 5.38 mg/L for rhEC-SOD, as determined using ELISA. A total superoxide dismutase assay with WST-8 indicates that the biological activity of rhCuZn-SOD and rhEC-SOD in goat milk is 1451 ± 136 U/mL. The results indicate that two expression vectors can simultaneously transfect goat fetal fibroblast cells as donor cells to produce transgenic goats by SCNT, and the CuZn-SOD and EC-SOD proteins secreted in the mammary glands showed biological activity. The present study thus describes an initial step in the production of recombinant human SODs that may potentially be used for therapeutic purposes.
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Costa TJ, Ceravolo GS, Echem C, Hashimoto CM, Costa BP, Santos-Eichler RA, Oliveira MA, Jiménez-Altayó F, Akamine EH, Dantas AP, Carvalho MHC. Detrimental Effects of Testosterone Addition to Estrogen Therapy Involve Cytochrome P-450-Induced 20-HETE Synthesis in Aorta of Ovariectomized Spontaneously Hypertensive Rat (SHR), a Model of Postmenopausal Hypertension. Front Physiol 2018; 9:490. [PMID: 29867542 PMCID: PMC5952044 DOI: 10.3389/fphys.2018.00490] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2017] [Accepted: 04/17/2018] [Indexed: 12/02/2022] Open
Abstract
Postmenopausal period has been associated to different symptoms such as hot flashes, vulvovaginal atrophy, hypoactive sexual desire disorder (HSDD) and others. Clinical studies have described postmenopausal women presenting HSDD can benefit from the association of testosterone to conventional hormonal therapy. Testosterone has been linked to development of cardiovascular diseases including hypertension and it also increases cytochrome P-450-induced 20-HETE synthesis which in turn results in vascular dysfunction. However, the effect of testosterone plus estrogen in the cardiovascular system is still very poorly studied. The aim of the present study is to evaluate the role of cytochrome P-450 pathway in a postmenopausal hypertensive female treated with testosterone plus estrogen. For that, hypertensive ovariectomized rats (OVX-SHR) were used as a model of postmenopausal hypertension and four groups were created: SHAM-operated (SHAM), ovariectomized SHR (OVX), OVX treated for 15 days with conjugated equine estrogens [(CEE) 9.6 μg/Kg/day/po] or CEE associated to testosterone [(CEE+T) 2.85 mg/kg/weekly/im]. Phenylephrine-induced contraction and generation of reactive oxygen species (ROS) were markedly increased in aortic rings from OVX-SHR compared to SHAM rats which were restored by CEE treatment. On the other hand, CEE+T abolished vascular effects by CEE and augmented both systolic and diastolic blood pressure of SHR. Treatment of aortic rings with the CYP/20-HETE synthesis inhibitor HET0016 (1 μM) reduced phenylephrine hyperreactivity and the augmented ROS generation in the CEE+T group. These results are paralleled by the increased CYP4F3 protein expression and activity in aortas of CEE+T. In conclusion, we showed that association of testosterone to estrogen therapy produces detrimental effects in cardiovascular system of ovariectomized hypertensive females via CYP4F3/20-HETE pathway. Therefore, our findings support the standpoint that the CYP/20-HETE pathway is an important therapeutic target for the prevention of cardiovascular disease in menopausal women in the presence of high levels of testosterone.
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Affiliation(s)
- Tiago J Costa
- Department of Pharmacology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil.,Facultat de Medicina, Departament de Farmacologia, Terapèutica i Toxicologia, Institut de Neurociències, Universitat Autònoma de Barcelona, Bellaterra, Spain.,Group of Atherosclerosis and Coronary Disease, Institut Clinic del Torax, Institut d'Investigacions Biomédiques August Pi I Sunyer, Barcelona, Spain
| | - Graziela S Ceravolo
- Department of Pharmacology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil.,Department of Physiological Sciences, State University of Londrina, Londrina, Brazil
| | - Cinthya Echem
- Department of Pharmacology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Carolina M Hashimoto
- Department of Pharmacology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Beatriz P Costa
- Department of Pharmacology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Rosangela A Santos-Eichler
- Department of Pharmacology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Maria Aparecida Oliveira
- Department of Pharmacology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Francesc Jiménez-Altayó
- Facultat de Medicina, Departament de Farmacologia, Terapèutica i Toxicologia, Institut de Neurociències, Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - Eliana H Akamine
- Department of Pharmacology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Ana Paula Dantas
- Group of Atherosclerosis and Coronary Disease, Institut Clinic del Torax, Institut d'Investigacions Biomédiques August Pi I Sunyer, Barcelona, Spain
| | - Maria Helena C Carvalho
- Department of Pharmacology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
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Quintero-García M, Delgado-González E, Sánchez-Tusie A, Vázquez M, Aceves C, Anguiano B. Iodine prevents the increase of testosterone-induced oxidative stress in a model of rat prostatic hyperplasia. Free Radic Biol Med 2018; 115:298-308. [PMID: 29248723 DOI: 10.1016/j.freeradbiomed.2017.12.014] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/03/2017] [Revised: 12/11/2017] [Accepted: 12/12/2017] [Indexed: 12/11/2022]
Abstract
Oxidative stress and inflammation are involved in the development and/or progression of benign prostatic hyperplasia (BPH). Molecular iodine (I2) induces antiproliferative and apoptotic effects in prostate cancer cells, but it is unknown if I2 regulates oxidative stress in the normal and/or tumoral prostate. The purpose of this study was to analyze the effects of I2 and celecoxib (Cxb) on oxidative stress and inflammation in a model of prostatic hyperplasia. Cxb was used as positive control of cyclooxygenase-2 (COX-2) inhibition. Prostatic hyperplasia was induced in male Wistar rats (170g) with testosterone (5mg/kg/week, for three weeks). One week before hyperplasia induction, I2 (25mg/day/rat) or Cxb (1.25mg/day/rat) was supplied for four weeks in the drinking water. Prostatic hyperplasia was evaluated by histological analysis, DNA content, and/or proliferating cell nuclear antigen (PCNA) expression. Lipoperoxidation (malondialdehyde) and nitrite (NO2-) levels were analyzed by colorimetric methods, while nitric oxide synthase (NOS), COX, and myeloperoxidase (MPO) enzymes were analyzed using RT-PCR, immunoblotting, and/or enzymatic assays. Levels of 15-F2t-isoprostanes, prostaglandins (PGE2), leukotrienes (LTB4), and tumor necrosis factor alpha (TNFα) were measured by ELISA. Control testosterone-treated animals exhibited hyperplasia in the dorsolateral prostate, as well as increments in almost all oxidative parameters except for COX-1, TNFα, or MPO. I2 and Cxb prevented epithelial hyperplasia (DNA content) and oxidative stress induction generated by testosterone in almost the same intensity, and the minimum I2 dose required was 2.5mg/rat. The antioxidant capacity of I2 was also analyzed in a cell-free system, showing that this element inhibited the conversion of nitrate (NO3-) to NO2-. I2 did not modify the prostatic oxidative state in testosterone untreated rats. In summary, our data showed that antiproliferative and antioxidant effects of I2 involve the inhibition of NOS and the COX-2 pathway. Further studies are necessary to analyze the therapeutic and/or adjuvant effects of I2 with first-line medications used to treat BPH.
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Affiliation(s)
- Michelle Quintero-García
- Departamento de Neurobiología Celular y Molecular, Instituto de Neurobiología, Universidad Nacional Autónoma de México, Campus Juriquilla, 76230 Querétaro, Mexico
| | - Evangelina Delgado-González
- Departamento de Neurobiología Celular y Molecular, Instituto de Neurobiología, Universidad Nacional Autónoma de México, Campus Juriquilla, 76230 Querétaro, Mexico
| | - Ana Sánchez-Tusie
- Departamento de Neurobiología Celular y Molecular, Instituto de Neurobiología, Universidad Nacional Autónoma de México, Campus Juriquilla, 76230 Querétaro, Mexico
| | - Mario Vázquez
- Departamento de Neurobiología Celular y Molecular, Instituto de Neurobiología, Universidad Nacional Autónoma de México, Campus Juriquilla, 76230 Querétaro, Mexico
| | - Carmen Aceves
- Departamento de Neurobiología Celular y Molecular, Instituto de Neurobiología, Universidad Nacional Autónoma de México, Campus Juriquilla, 76230 Querétaro, Mexico
| | - Brenda Anguiano
- Departamento de Neurobiología Celular y Molecular, Instituto de Neurobiología, Universidad Nacional Autónoma de México, Campus Juriquilla, 76230 Querétaro, Mexico.
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Kerns ML, Hakim JMC, Zieman A, Lu RG, Coulombe PA. Sexual Dimorphism in Response to an NRF2 Inducer in a Model for Pachyonychia Congenita. J Invest Dermatol 2017; 138:1094-1100. [PMID: 29277538 DOI: 10.1016/j.jid.2017.09.054] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Revised: 09/25/2017] [Accepted: 09/28/2017] [Indexed: 11/30/2022]
Abstract
Sex is an influential factor regarding pathophysiology and therapeutic response in human disease. Pachyonychia congenita is caused by mutations in keratin genes and typified by dystrophic lesions affecting nails, glands, oral mucosa, and palmar-plantar epidermis. Painful palmar-plantar keratoderma (PPK) severely impairs mobility in pachyonychia congenita. Mice genetically null for keratin 16 (Krt16), one of the genes mutated in pachyonychia congenita, develop pachyonychia congenita-like PPK. In male Krt16-/- mice, oxidative stress associated with impaired glutathione synthesis and nuclear factor erythroid-derived 2 related factor 2 (NRF2)-dependent gene expression precedes PPK onset, which can be prevented by topical sulforaphane-mediated activation of NRF2. We report here that sulforaphane treatment fails to activate NRF2 and prevent PPK in female Krt16-/- mice despite a similar set of molecular circumstances. Follow-up studies reveal a temporal shift in PPK onset in Krt16-/- females, coinciding with sex-specific fluctuations in footpad skin glutathione levels. Dual treatment with sulforaphane and diarylpropionitrile, an estrogen receptor beta selective agonist, results in NRF2 activation, normalization of glutathione levels, and prevention of PPK in female Krt16-/- mice. These findings point to a sex difference in NRF2 responsiveness that needs be considered when exploring NRF2 as a therapeutic target in skin disorders.
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Affiliation(s)
- Michelle L Kerns
- Department of Biochemistry and Molecular Biology, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland, USA
| | - Jill M C Hakim
- Department of Biochemistry and Molecular Biology, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland, USA
| | - Abigail Zieman
- Department of Biochemistry and Molecular Biology, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland, USA; Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, Michigan, USA
| | - Rosemary G Lu
- Department of Biochemistry and Molecular Biology, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland, USA
| | - Pierre A Coulombe
- Department of Biochemistry and Molecular Biology, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland, USA; Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, Michigan, USA; Department of Biological Chemistry, Johns Hopkins University, Baltimore, Maryland, USA; Department of Dermatology, Johns Hopkins University, Baltimore, Maryland, USA; Department of Oncology, School of Medicine, Johns Hopkins University, Baltimore, Maryland, USA; Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University, Baltimore, Maryland, USA.
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Abstract
The principle steroidal androgens are testosterone and its metabolite 5α-dihydrotestosterone (DHT), which is converted from testosterone by the enzyme 5α-reductase. Through the classic pathway with androgens crossing the plasma membrane and binding to the androgen receptor (AR) or via mechanisms independent of the ligand-dependent transactivation function of nuclear receptors, testosterone induces genomic and non-genomic effects respectively. AR is widely distributed in several tissues, including vascular endothelial and smooth muscle cells. Androgens are essential for many developmental and physiological processes, especially in male reproductive tissues. It is now clear that androgens have multiple actions besides sex differentiation and sexual maturation and that many physiological systems are influenced by androgens, including regulation of cardiovascular function [nitric oxide (NO) release, Ca2+ mobilization, vascular apoptosis, hypertrophy, calcification, senescence and reactive oxygen species (ROS) generation]. This review focuses on evidence indicating that interplay between genomic and non-genomic actions of testosterone may influence cardiovascular function.
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Lephart ED. Skin aging and oxidative stress: Equol's anti-aging effects via biochemical and molecular mechanisms. Ageing Res Rev 2016; 31:36-54. [PMID: 27521253 DOI: 10.1016/j.arr.2016.08.001] [Citation(s) in RCA: 166] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2016] [Revised: 07/29/2016] [Accepted: 08/04/2016] [Indexed: 01/08/2023]
Abstract
Oxygen in biology is essential for life. It comes at a cost during normal cellular function, where reactive oxygen species (ROS) are generated by oxidative metabolism. Human skin exposed to solar ultra-violet radiation (UVR) dramatically increases ROS production/oxidative stress. It is important to understand the characteristics of human skin and how chronological (intrinsic) aging and photo-aging (extrinsic aging) occur via the impact of ROS production by cascade signaling pathways. The goal is to oppose or neutralize ROS insults to maintain good dermal health. Botanicals, as active ingredients, represent one of the largest categories used in dermatology and cosmeceuticals to combat skin aging. An emerging botanical is equol, a polyphenolic/isoflavonoid molecule found in plants and food products and via gastrointestinal metabolism from precursor compounds. Introductory sections cover oxygen, free radicals (ROS), oxidative stress, antioxidants, human skin aging, cellular/molecular ROS events in skin, steroid enzymes/receptors/hormonal actions and genetic factors in aging skin. The main focus of this review covers the characteristics of equol (phytoestrogenic, antioxidant and enhancement of extracellular matrix properties) to reduce skin aging along with its anti-aging skin influences via reducing oxidative stress cascade events by a variety of biochemical/molecular actions and mechanisms to enhance human dermal health.
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Affiliation(s)
- Edwin D Lephart
- Department of Physiology and Developmental Biology and The Neuroscience Center, Brigham Young University, Provo, UT 84602, USA.
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Altabas V, Altabas K, Kirigin L. Endothelial progenitor cells (EPCs) in ageing and age-related diseases: How currently available treatment modalities affect EPC biology, atherosclerosis, and cardiovascular outcomes. Mech Ageing Dev 2016; 159:49-62. [PMID: 26919825 DOI: 10.1016/j.mad.2016.02.009] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2015] [Revised: 01/25/2016] [Accepted: 02/22/2016] [Indexed: 12/15/2022]
Abstract
Endothelial progenitor cells (EPCs) are mononuclear cells that circulate in the blood and are derived from different tissues, expressing cell surface markers that are similar to mature endothelial cells. The discovery of EPCs has lead to new insights in vascular repair and atherosclerosis and also a new theory for ageing. EPCs from the bone marrow and some other organs aid in vascular repair by migrating to distant vessels where they differentiate into mature endothelial cells and replace old and injured endothelial cells. The ability of EPCs to repair vascular damage depends on their number and functionality. Currently marketed drugs used in a variety of diseases can modulate these characteristics. In this review, the effect of currently available treatment options for cardiovascular and metabolic disorders on EPC biology will be discussed. The various EPC-based therapies that will be discussed include lipid-lowering agents, antihypertensive agents, antidiabetic drugs, phosphodiesteraze inhibitors, hormones, as well as EPC capturing stents.
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Affiliation(s)
- Velimir Altabas
- Department of Internal Medicine, University Clinical Hospital "Sestre milosrdnice", Zagreb, Croatia.
| | - Karmela Altabas
- Department of Internal Medicine, University Clinical Hospital "Sestre milosrdnice", Zagreb, Croatia.
| | - Lora Kirigin
- Department of Internal Medicine, University Clinical Hospital "Sestre milosrdnice", Zagreb, Croatia.
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