1
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Shorthill SK, Jones TLM, Woulfe KC, Cherrington BD, Bruns DR. The influence of estrogen on myocardial post-translational modifications and cardiac function in women. Can J Physiol Pharmacol 2024; 102:452-464. [PMID: 38266237 DOI: 10.1139/cjpp-2023-0412] [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] [Indexed: 01/26/2024]
Abstract
The lifetime risk of heart failure (HF) is comparable in men and women; nevertheless, disparities exist in our understanding of how HF differs between sexes. Several differences in cardiac physiology exist between men and women including the propensity to develop specific HF phenotypes. Men are more likely to be diagnosed with HF failure with reduced ejection fraction, while women have a greater propensity to develop HF with preserved ejection fraction. The mechanisms responsible for these differences remain unclear. Post-translational modifications (PTMs) of myofilament proteins likely contribute to these sex-specific propensities. The role of PTMs in heart disease is an expanding field with immense potential therapeutic targets. However, numerous PTMs remain underexplored, particularly in the context of the female heart. Estrogen, a key gonadal hormone, cardioprotective in pre-menopausal women and its loss with menopause likely contributes to disease in aging women. However, how estrogen regulates PTMs to contribute to HF development is not fully clear. This review outlines key sex differences in HF along with characterizing the contributions of novel myocardial PTMs in cardiac physiology and their regulation by estrogen. Collectively, we highlight the necessity for further investigation into women's heart health and the distinctive mechanisms distinguishing women from men.
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Affiliation(s)
| | - Timothy L M Jones
- Division of Cardiology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Kathleen C Woulfe
- Division of Cardiology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Brian D Cherrington
- Department of Zoology and Physiology, University of Wyoming, Laramie, WY, USA
| | - Danielle R Bruns
- Division of Kinesiology and Health, University of Wyoming, Laramie, WY, USA
- Department of Zoology and Physiology, University of Wyoming, Laramie, WY, USA
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2
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Hart DA. The Heterogeneity of Post-Menopausal Disease Risk: Could the Basis for Why Only Subsets of Females Are Affected Be Due to a Reversible Epigenetic Modification System Associated with Puberty, Menstrual Cycles, Pregnancy and Lactation, and, Ultimately, Menopause? Int J Mol Sci 2024; 25:3866. [PMID: 38612676 PMCID: PMC11011715 DOI: 10.3390/ijms25073866] [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: 02/24/2024] [Revised: 03/19/2024] [Accepted: 03/28/2024] [Indexed: 04/14/2024] Open
Abstract
For much of human evolution, the average lifespan was <40 years, due in part to disease, infant mortality, predators, food insecurity, and, for females, complications of childbirth. Thus, for much of evolution, many females did not reach the age of menopause (45-50 years of age) and it is mainly in the past several hundred years that the lifespan has been extended to >75 years, primarily due to public health advances, medical interventions, antibiotics, and nutrition. Therefore, the underlying biological mechanisms responsible for disease risk following menopause must have evolved during the complex processes leading to Homo sapiens to serve functions in the pre-menopausal state. Furthermore, as a primary function for the survival of the species is effective reproduction, it is likely that most of the advantages of having such post-menopausal risks relate to reproduction and the ability to address environmental stresses. This opinion/perspective will be discussed in the context of how such post-menopausal risks could enhance reproduction, with improved survival of offspring, and perhaps why such risks are preserved. Not all post-menopausal females exhibit risk for this set of diseases, and those who do develop such diseases do not have all of the conditions. The diseases of the post-menopausal state do not operate as a unified complex, but as independent variables, with the potential for some overlap. The how and why there would be such heterogeneity if the risk factors serve essential functions during the reproductive years is also discussed and the concept of sets of reversible epigenetic changes associated with puberty, pregnancy, and lactation is offered to explain the observations regarding the distribution of post-menopausal conditions and their potential roles in reproduction. While the involvement of an epigenetic system with a dynamic "modification-demodification-remodification" paradigm contributing to disease risk is a hypothesis at this point, validation of it could lead to a better understanding of post-menopausal disease risk in the context of reproduction with commonalities may also lead to future improved interventions to control such risk after menopause.
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Affiliation(s)
- David A Hart
- Department of Surgery, Faculty of Kinesiology, and McCaig Institute for Bone and Joint Health, University of Calgary, Calgary, AB T2N 4N1, Canada
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3
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Bridges J, Ramirez-Guerrero JA, Rosa-Garrido M. Gender-specific genetic and epigenetic signatures in cardiovascular disease. Front Cardiovasc Med 2024; 11:1355980. [PMID: 38529333 PMCID: PMC10962446 DOI: 10.3389/fcvm.2024.1355980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Accepted: 02/13/2024] [Indexed: 03/27/2024] Open
Abstract
Cardiac sex differences represent a pertinent focus in pursuit of the long-awaited goal of personalized medicine. Despite evident disparities in the onset and progression of cardiac pathology between sexes, historical oversight has led to the neglect of gender-specific considerations in the treatment of patients. This oversight is attributed to a predominant focus on male samples and a lack of sex-based segregation in patient studies. Recognizing these sex differences is not only relevant to the treatment of cisgender individuals; it also holds paramount importance in addressing the healthcare needs of transgender patients, a demographic that is increasingly prominent in contemporary society. In response to these challenges, various agencies, including the National Institutes of Health, have actively directed their efforts toward advancing our comprehension of this phenomenon. Epigenetics has proven to play a crucial role in understanding sex differences in both healthy and disease states within the heart. This review presents a comprehensive overview of the physiological distinctions between males and females during the development of various cardiac pathologies, specifically focusing on unraveling the genetic and epigenetic mechanisms at play. Current findings related to distinct sex-chromosome compositions, the emergence of gender-biased genetic variations, and variations in hormonal profiles between sexes are highlighted. Additionally, the roles of DNA methylation, histone marks, and chromatin structure in mediating pathological sex differences are explored. To inspire further investigation into this crucial subject, we have conducted global analyses of various epigenetic features, leveraging data previously generated by the ENCODE project.
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Affiliation(s)
| | | | - Manuel Rosa-Garrido
- Department of Biomedical Engineering, School of Medicine, School of Engineering, University of Alabama at Birmingham, Birmingham, AL, United States
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4
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Ramírez-Hernández D, López-Sánchez P, Lezama-Martínez D, Kuyoc-Arroyo NM, Rodríguez-Rodríguez JE, Fonseca-Coronado S, Valencia-Hernández I, Flores-Monroy J. Timing Matters: Effects of Early and Late Estrogen Replacement Therapy on Glucose Metabolism and Vascular Reactivity in Ovariectomized Aged Wistar Rats. J Renin Angiotensin Aldosterone Syst 2023; 2023:6683989. [PMID: 38025203 PMCID: PMC10665112 DOI: 10.1155/2023/6683989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 10/16/2023] [Accepted: 11/06/2023] [Indexed: 12/01/2023] Open
Abstract
Cardiovascular disease incidence increases after menopause due to the loss of estrogen cardioprotective effects. However, there are conflicting data regarding the timing of estrogen therapy (ERT) and its effect on vascular dysfunction associated with impaired glucose metabolism. The aim of this work was to evaluate the effect of early and late ERT on blood glucose/insulin balance and vascular reactivity in aged ovariectomized Wistar rats. Eighteen-month-old female Wistar rats were randomized as follows: (1) sham, (2) 10-week postovariectomy (10 w), (3) 10 w postovariectomy+early estradiol therapy (10 w-early E2), (4) 20-week postovariectomy (20 w), and (5) 20-week postovariectomy+late estradiol therapy (20 w-late E2). Early E2 was administered 3 days after ovariectomy and late therapy after 10 weeks, in both groups. 17β-Estradiol (E2) was administered daily for 10 weeks (5 μg/kg/day). Concentration-response curves to angiotensin II, KCl, and acetylcholine (ACh) were performed. Heart rate (HR), diastolic and systolic blood pressure (DBP and SBP), glucose, insulin, HOMA-IR, and nitric oxide (NO) levels were determined. Higher glucose levels were found in all groups compared to the sham group, except the 20 w-late E2 group. Insulin was increased in all ovariectomized groups compared to sham. The HOMA-IR index showed insulin resistance in all ovariectomized groups, except for the 10 w-early E2 group. The 10 w-early E2 group increased NO levels vs. the 10 w group. After 10 w postovariectomy, the vascular response to KCl and Ach increases, despite early E2 administration. Early and late E2 treatment decreased vascular reactivity to Ang II. At 20-week postovariectomy, DBP increased, even with E2 administration, while SBP and HR remained unchanged. The effects of E2 therapy on blood glucose/insulin balance and vascular reactivity depend on the timing of therapy. Early ERT may provide some protective effects on insulin resistance and vascular function, whereas late ERT may not have the same benefits.
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Affiliation(s)
- Diana Ramírez-Hernández
- Myocardial Pharmacology Laboratory, Faculty of Higher Studies Cuautitlan, National Autonomous University of Mexico, 54740 State of Mexico, Mexico
| | - Pedro López-Sánchez
- Laboratorio de Farmacología Molecular, Escuela Superior de Medicina, Instituto Politécnico Nacional, 11340 Ciudad de México, Mexico
| | - Diego Lezama-Martínez
- Myocardial Pharmacology Laboratory, Faculty of Higher Studies Cuautitlan, National Autonomous University of Mexico, 54740 State of Mexico, Mexico
| | - Neidy M. Kuyoc-Arroyo
- Myocardial Pharmacology Laboratory, Faculty of Higher Studies Cuautitlan, National Autonomous University of Mexico, 54740 State of Mexico, Mexico
| | - Jessica E. Rodríguez-Rodríguez
- Biological Pharmaceutical Chemist Career, Faculty of Higher Education Zaragoza, National Autonomous University of Mexico, Batalla 5 de Mayo S/N, Ejército de Oriente, Iztapalapa, 09230 Mexico City, Mexico
- Laboratory 7, Biomedicine Unit, Faculty of Higher Education Iztacala, National Autonomous University of Mexico, Avenida de los Barrios 1, Los Reyes Ixtacala, 54090 Tlalnepantla de Baz, Mexico
| | - Salvador Fonseca-Coronado
- Immunology Laboratory, Faculty of Higher Studies Cuautitlan, National Autonomous University of Mexico, 54740 State of Mexico, Mexico
| | - Ignacio Valencia-Hernández
- Laboratorio de Farmacología Cardiovascular, Escuela Superior de Medicina, Instituto Politécnico Nacional, 11340 Ciudad de México, Mexico
| | - Jazmin Flores-Monroy
- Myocardial Pharmacology Laboratory, Faculty of Higher Studies Cuautitlan, National Autonomous University of Mexico, 54740 State of Mexico, Mexico
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5
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Karolczak K, Watala C. Estradiol as the Trigger of Sirtuin-1-Dependent Cell Signaling with a Potential Utility in Anti-Aging Therapies. Int J Mol Sci 2023; 24:13753. [PMID: 37762053 PMCID: PMC10530977 DOI: 10.3390/ijms241813753] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Revised: 09/01/2023] [Accepted: 09/03/2023] [Indexed: 09/29/2023] Open
Abstract
Aging entails the inevitable loss of the structural and functional integrity of cells and tissues during the lifetime. It is a highly hormone-dependent process; although, the exact mechanism of hormone involvement, including sex hormones, is unclear. The marked suppression of estradiol synthesis during menopause suggests that the hormone may be crucial in maintaining cell lifespan and viability in women. Recent studies also indicate that the same may be true for men. Similar anti-aging features are attributed to sirtuin 1 (SIRT1), which may possibly be linked at the molecular level with estradiol. This finding may be valuable for understanding the aging process, its regulation, and possible prevention against unhealthy aging. The following article summarizes the initial studies published in this field with a focus on age-associated diseases, like cancer, cardiovascular disease and atherogenic metabolic shift, osteoarthritis, osteoporosis, and muscle damage, as well as neurodegenerative and neuropsychiatric diseases.
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Affiliation(s)
- Kamil Karolczak
- Department of Haemostatic Disorders, Medical University of Lodz, ul. Mazowiecka 6/8, 92-215 Lodz, Poland;
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6
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Erichsen L, Thimm C, Wruck W, Kaierle D, Schless M, Huthmann L, Dimski T, Kindgen-Milles D, Brandenburger T, Adjaye J. Secreted Cytokines within the Urine of AKI Patients Modulate TP53 and SIRT1 Levels in a Human Podocyte Cell Model. Int J Mol Sci 2023; 24:ijms24098228. [PMID: 37175937 PMCID: PMC10179415 DOI: 10.3390/ijms24098228] [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: 03/20/2023] [Revised: 04/26/2023] [Accepted: 04/28/2023] [Indexed: 05/15/2023] Open
Abstract
Acute kidney injury (AKI) is a major kidney disease with a poor clinical outcome. It is a common complication, with an incidence of 10-15% of patients admitted to hospital. This rate even increases for patients who are admitted to the intensive care unit, with an incidence of >50%. AKI is characterized by a rapid increase in serum creatinine, decrease in urine output, or both. The associated symptoms include feeling sick or being sick, diarrhoea, dehydration, decreased urine output (although occasionally the urine output remains normal), fluid retention causing swelling in the legs or ankles, shortness of breath, fatigue and nausea. However, sometimes acute kidney injury causes no signs or symptoms and is detected by lab tests. Therefore, the identification of cytokines for the early detection and diagnosis of AKI is highly desirable, as their application might enable the prevention of the progression from AKI to chronic kidney disease (CKD). In this study, we analysed the secretome of the urine of an AKI patient cohort by employing a kidney-biomarker cytokine assay. Based on these results, we suggest ADIPOQ, EGF and SERPIN3A as potential cytokines that might be able to detect AKI as early as 24 h post-surgery. For the later stages, as common cytokines for the detection of AKI in both male and female patients, we suggest VEGF, SERPIN3A, TNFSF12, ANPEP, CXCL1, REN, CLU and PLAU. These cytokines in combination might present a robust strategy for identifying the development of AKI as early as 24 h or 72 h post-surgery. Furthermore, we evaluated the effect of patient and healthy urine on human podocyte cells. We conclude that cytokines abundant in the urine of AKI patients trigger processes that are needed to repair the damaged nephron and activate TP53 and SIRT1 to maintain the balance between proliferation, angiogenesis, and cell cycle arrest.
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Affiliation(s)
- Lars Erichsen
- Institute for Stem Cell Research and Regenerative Medicine, Medical Faculty, Heinrich-Heine University Düsseldorf, 40225 Düsseldorf, Germany
| | - Chantelle Thimm
- Institute for Stem Cell Research and Regenerative Medicine, Medical Faculty, Heinrich-Heine University Düsseldorf, 40225 Düsseldorf, Germany
| | - Wasco Wruck
- Institute for Stem Cell Research and Regenerative Medicine, Medical Faculty, Heinrich-Heine University Düsseldorf, 40225 Düsseldorf, Germany
| | - Daniela Kaierle
- Department of Anesthesiology, University Hospital Düsseldorf, Heinrich-Heine University Duesseldorf, Moorenstr. 5, 40225 Düsseldorf, Germany
| | - Manon Schless
- Department of Anesthesiology, University Hospital Düsseldorf, Heinrich-Heine University Duesseldorf, Moorenstr. 5, 40225 Düsseldorf, Germany
| | - Laura Huthmann
- Department of Anesthesiology, University Hospital Düsseldorf, Heinrich-Heine University Duesseldorf, Moorenstr. 5, 40225 Düsseldorf, Germany
| | - Thomas Dimski
- Department of Anesthesiology, University Hospital Düsseldorf, Heinrich-Heine University Duesseldorf, Moorenstr. 5, 40225 Düsseldorf, Germany
| | - Detlef Kindgen-Milles
- Department of Anesthesiology, University Hospital Düsseldorf, Heinrich-Heine University Duesseldorf, Moorenstr. 5, 40225 Düsseldorf, Germany
| | - Timo Brandenburger
- Department of Anesthesiology, University Hospital Düsseldorf, Heinrich-Heine University Duesseldorf, Moorenstr. 5, 40225 Düsseldorf, Germany
| | - James Adjaye
- Institute for Stem Cell Research and Regenerative Medicine, Medical Faculty, Heinrich-Heine University Düsseldorf, 40225 Düsseldorf, Germany
- Zayed Centre for Research into Rare Diseases in Children (ZCR), EGA Institute for Women's Health, University College London (UCL), 20 Guilford Street, London WC1N 1DZ, UK
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7
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Kabeer SW, Pant R, Sharma S, Tikoo K. Laccaic acid restores epigenetic alterations responsible for high fat diet induced insulin resistance in C57BL/6J mice. Chem Biol Interact 2023; 374:110401. [PMID: 36828244 DOI: 10.1016/j.cbi.2023.110401] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 01/10/2023] [Accepted: 02/08/2023] [Indexed: 02/24/2023]
Abstract
Laccaic acid, the major constituent of the food colouring agent-lac dye, possesses antioxidant and anti-inflammatory properties. Here we have evaluated the effects of laccaic acid on the high-fat diet induced insulin resistance in C57BL/6J mice. Insulin resistance was developed in mice by feeding high-fat diet for 12 weeks. 6 week treatment with laccaic acid showed significant improvement in the morphometric, biochemical parameters and liver function. Western blotting experiments showed, laccaic acid increased phosphorylation of IRS1/2/AKT/GSK3β which is suppressed under insulin-resistant conditions in liver. Furthermore, it also attenuated the inflammatory ERK/NFκB signalling, thereby reducing the expression of inflammatory cytokines- TNFα, IL-1β and IL-6. Concomitantly, laccaic acid increased AMPK/AKT-mediated phosphorylation of FOXO1, preventing its nuclear translocation and transcriptional activation of gluconeogenic genes (G6PC and PCK1). Interestingly, treatment with laccaic acid also prevented high-fat diet induced alterations of histone methylation (H3K27me3 and H3K36me2) at global level. Our chromatin-immunoprecipitation data shows high-fat diet induced loss of inactivation mark H3K27me3 at FOXO1 promoter was regained upon laccaic acid treatment. Additionally, the expression of the H3K27 methylating enzyme EZH2 was also upregulated by laccaic acid. Together it all results in the downregulation of FOXO1 gene expression. To the best of our knowledge, we provide first evidence that laccaic acid either directly or indirectly modulates the epigenetic landscape of genes responsible for high-fat diet induced insulin resistance.
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Affiliation(s)
- Shaheen Wasil Kabeer
- Laboratory of Epigenetics and Diseases, Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research, Sector-67, S.A.S. Nagar, Punjab, 160062, India
| | - Rajat Pant
- Laboratory of Epigenetics and Diseases, Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research, Sector-67, S.A.S. Nagar, Punjab, 160062, India
| | - Shivam Sharma
- Laboratory of Epigenetics and Diseases, Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research, Sector-67, S.A.S. Nagar, Punjab, 160062, India
| | - Kulbhushan Tikoo
- Laboratory of Epigenetics and Diseases, Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research, Sector-67, S.A.S. Nagar, Punjab, 160062, India.
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8
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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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9
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Lu C, Zhao H, Liu Y, Yang Z, Yao H, Liu T, Gou T, Wang L, Zhang J, Tian Y, Yang Y, Zhang H. Novel Role of the SIRT1 in Endocrine and Metabolic Diseases. Int J Biol Sci 2023; 19:484-501. [PMID: 36632457 PMCID: PMC9830516 DOI: 10.7150/ijbs.78654] [Citation(s) in RCA: 24] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Accepted: 11/15/2022] [Indexed: 12/23/2022] Open
Abstract
Silent information regulator 1 (SIRT1), a highly conserved NAD+-dependent deacetylase, is a cellular regulator that has received extensive attention in recent years and regarded as a sensor of cellular energy and metabolism. The accumulated evidence suggests that SIRT1 is involved in the development of endocrine and metabolic diseases. In a variety of organisms, SIRT1 regulates gene expression through the deacetylation of histone, transcription factors, and lysine residues of other modified proteins including several metabolic and endocrine signal transcription factors, thereby enhancing the therapeutic effects of endocrine and metabolic diseases. These evidences indicate that targeting SIRT1 has promising applications in the treatment of endocrine and metabolic diseases. This review focuses on the role of SIRT1 in endocrine and metabolic diseases. First, we describe the background and structure of SIRT1. Then, we outline the role of SIRT1 in endocrine and metabolic diseases such as hyperuricemia, diabetes, hypertension, hyperlipidemia, osteoporosis, and polycystic ovarian syndrome. Subsequently, the SIRT1 agonists and inhibitors in the above diseases are summarized and future research directions are proposed. Overall, the information presents here may highlight the potential of SIRT1 as a future biomarker and therapeutic target for endocrine and metabolic diseases.
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Affiliation(s)
- Chenxi Lu
- Department of Cardiology, Xi'an No.3 Hospital, The Affiliated Hospital of Northwest University. Faculty of Life Sciences and Medicine, Northwest University, Xi'an, China.,Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education. Faculty of Life Sciences and Medicine, Northwest University, Xi'an, China
| | - Huadong Zhao
- Department of General Surgery, Tangdu Hospital, The Airforce Medical University, 1 Xinsi Road, Xi'an 710038, China
| | - Yanqing Liu
- Department of Cardiology, Xi'an No.3 Hospital, The Affiliated Hospital of Northwest University. Faculty of Life Sciences and Medicine, Northwest University, Xi'an, China.,Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education. Faculty of Life Sciences and Medicine, Northwest University, Xi'an, China
| | - Zhi Yang
- Department of General Surgery, Tangdu Hospital, The Airforce Medical University, 1 Xinsi Road, Xi'an 710038, China
| | - Hairong Yao
- Department of Cardiology, Xi'an No.3 Hospital, The Affiliated Hospital of Northwest University. Faculty of Life Sciences and Medicine, Northwest University, Xi'an, China.,Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education. Faculty of Life Sciences and Medicine, Northwest University, Xi'an, China
| | - Tong Liu
- Department of Cardiology, Xi'an No.3 Hospital, The Affiliated Hospital of Northwest University. Faculty of Life Sciences and Medicine, Northwest University, Xi'an, China.,Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education. Faculty of Life Sciences and Medicine, Northwest University, Xi'an, China
| | - Tiantian Gou
- Department of Cardiology, Xi'an No.3 Hospital, The Affiliated Hospital of Northwest University. Faculty of Life Sciences and Medicine, Northwest University, Xi'an, China.,Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education. Faculty of Life Sciences and Medicine, Northwest University, Xi'an, China
| | - Li Wang
- Department of Cardiology, Xi'an No.3 Hospital, The Affiliated Hospital of Northwest University. Faculty of Life Sciences and Medicine, Northwest University, Xi'an, China.,Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education. Faculty of Life Sciences and Medicine, Northwest University, Xi'an, China
| | - Juan Zhang
- Department of Cardiology, Xi'an No.3 Hospital, The Affiliated Hospital of Northwest University. Faculty of Life Sciences and Medicine, Northwest University, Xi'an, China.,Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education. Faculty of Life Sciences and Medicine, Northwest University, Xi'an, China
| | - Ye Tian
- Department of Cardiology, Xi'an No.3 Hospital, The Affiliated Hospital of Northwest University. Faculty of Life Sciences and Medicine, Northwest University, Xi'an, China.,Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education. Faculty of Life Sciences and Medicine, Northwest University, Xi'an, China
| | - Yang Yang
- Department of Cardiology, Xi'an No.3 Hospital, The Affiliated Hospital of Northwest University. Faculty of Life Sciences and Medicine, Northwest University, Xi'an, China.,Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education. Faculty of Life Sciences and Medicine, Northwest University, Xi'an, China.,✉ Corresponding authors: Yang Yang: . Huan Zhang: . Department of Cardiology, Xi'an No.3 Hospital, The Affiliated Hospital of Northwest University. Faculty of Life Sciences and Medicine, Northwest University, 10 Fengcheng Three Road, Xi'an, China
| | - Huan Zhang
- Department of Cardiology, Xi'an No.3 Hospital, The Affiliated Hospital of Northwest University. Faculty of Life Sciences and Medicine, Northwest University, Xi'an, China.,Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education. Faculty of Life Sciences and Medicine, Northwest University, Xi'an, China.,✉ Corresponding authors: Yang Yang: . Huan Zhang: . Department of Cardiology, Xi'an No.3 Hospital, The Affiliated Hospital of Northwest University. Faculty of Life Sciences and Medicine, Northwest University, 10 Fengcheng Three Road, Xi'an, China
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10
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Gutiérrez-Lara EJ, Sánchez-López A, Murbartián J, Acosta-Cota SJ, Centurión D. Effect of chronic administration of 17β-estradiol on the vasopressor responses induced by the sympathetic nervous system in insulin resistance rats. Steroids 2022; 188:109132. [PMID: 36273542 DOI: 10.1016/j.steroids.2022.109132] [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: 07/23/2022] [Revised: 09/14/2022] [Accepted: 10/14/2022] [Indexed: 11/05/2022]
Abstract
Several studies have demonstrated that the underlying mechanism of insulin resistance (IR) is linked with developing diseases like diabetes mellitus, hypertension, metabolic syndrome, and polycystic ovary syndrome. In turn, the dysfunction of female gonadal hormones (especially 17β-estradiol) may be related to the development of IR complications since different studies have shown that 17β-estradiol has a cardioprotector and vasorelaxant effect. This study aimed was to determine the effect of the 17β-estradiol administration in insulin-resistant rats and its effects on cardiovascular responses in pithed rats. Thus, the vasopressor responses are induced by sympathetic stimulation or i.v. bolus injections of noradrenaline (α1/2), methoxamine (α1), and UK 14,304 (α2) adrenergic agonist were determined in female pithed rats with fructose-induced insulin resistance or control rats treated with: 1) 17β-estradiol or 2) its vehicle (oil) for 5 weeks. Thus, 17β-estradiol decreased heart rate, prevented the increase of blood pressure induced by ovariectomy, but with the opposite effect on sham-operated rats; and decreased vasopressor responses induced by i.v. bolus injections of noradrenaline on sham-operated (control and fructose group) and ovariectomized (control) rats, and those induced by i.v. bolus injections of methoxamine (α1 adrenergic agonist). Overall, these results suggest 17β-estradiol has a cardioprotective effect, and its effect on vasopressor responses could be mediated mainly by the α1 adrenergic receptor. In contrast, IR with ovariectomy 17β-estradiol decreases or loses its cardioprotector effect, this could suggest a possible link between the adrenergic receptors and the insulin pathway.
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Affiliation(s)
- Erika J Gutiérrez-Lara
- Departamento de Farmacobiología, Cinvestav Unidad Coapa, Czda. de los Tenorios 235, Col. Granjas-Coapa, Deleg. Tlalpan, C.P. 14330 México City, México
| | - Araceli Sánchez-López
- Departamento de Farmacobiología, Cinvestav Unidad Coapa, Czda. de los Tenorios 235, Col. Granjas-Coapa, Deleg. Tlalpan, C.P. 14330 México City, México
| | - Janet Murbartián
- Departamento de Farmacobiología, Cinvestav Unidad Coapa, Czda. de los Tenorios 235, Col. Granjas-Coapa, Deleg. Tlalpan, C.P. 14330 México City, México
| | - Selene J Acosta-Cota
- Departamento de Ciencias de la Salud, Universidad Autónoma de Occidente, Blv. Lola Beltrán y Blv. Rolando Arjona. S/N, Col. 4 de marzo, C.P. 80020 Culiacán, Sinaloa, México
| | - David Centurión
- Departamento de Farmacobiología, Cinvestav Unidad Coapa, Czda. de los Tenorios 235, Col. Granjas-Coapa, Deleg. Tlalpan, C.P. 14330 México City, México.
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11
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Zeng Y, Fang Z, Lai J, Wu Z, Lin W, Yao H, Hu W, Chen J, Guo X, Chen X. Activation of Sirtuin-1 by Pinocembrin Treatment Contributes to Reduced Early Brain Injury after Subarachnoid Hemorrhage. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:2242833. [PMID: 36439686 PMCID: PMC9683949 DOI: 10.1155/2022/2242833] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 09/05/2022] [Accepted: 09/09/2022] [Indexed: 10/03/2023]
Abstract
Subarachnoid hemorrhage (SAH) as a devastating neurological disorder is closely related to heightened oxidative insults and neuroinflammatory injury. Pinocembrin, a bioflavonoid, exhibits different biological functions, such as immunomodulatory, anti-inflammatory, antioxidative, and cerebroprotective activities. Herein, we examined the protective effects and molecular mechanisms of pinocembrin in a murine model of SAH. Using an endovascular perforation model in rats, pinocembrin significantly mitigated SAH-induced neuronal tissue damage, including inflammatory injury and free-radical insults. Meanwhile, pinocembrin improved behavior function and reduced neuronal apoptosis. We also revealed that sirtuin-1 (SIRT1) activation was significantly enhanced by pinocembrin. In addition, pinocembrin treatment evidently enhanced peroxisome proliferator-activated receptor-γ coactivator expression and suppressed ac-nuclear factor-kappa B levels. In contrast, EX-527, a selective SIRT1 inhibitor, blunted the protective effects of pinocembrin against SAH by suppressing SIRT1-mediated signaling. These results suggested that the cerebroprotective actions of pinocembrin after SAH were through SIRT1-dependent pathway, suggesting the potential application of pinocembrin for the treatment of SAH.
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Affiliation(s)
- Yile Zeng
- Department of Neurosurgery, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, Fujian, China
| | - Zhongning Fang
- Department of Neurosurgery, The Jinjiang Municipal Hospital, Quanzhou, Fujian, China
| | - Jinqing Lai
- Department of Neurosurgery, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, Fujian, China
- Centre of Neurological and Metabolic Research, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, Fujian, China
| | - Zhe Wu
- Department of Neurosurgery, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, Fujian, China
- Centre of Neurological and Metabolic Research, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, Fujian, China
| | - Weibin Lin
- Department of Neurosurgery, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, Fujian, China
| | - Hao Yao
- Department of Neurosurgery, The Jinjiang Municipal Hospital, Quanzhou, Fujian, China
| | - Weipeng Hu
- Department of Neurosurgery, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, Fujian, China
| | - Junyan Chen
- Department of Neurosurgery, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, Fujian, China
| | - Xieli Guo
- Department of Neurosurgery, The Jinjiang Municipal Hospital, Quanzhou, Fujian, China
| | - Xiangrong Chen
- Department of Neurosurgery, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, Fujian, China
- Centre of Neurological and Metabolic Research, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, Fujian, China
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12
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Liu JQ, Zhao XT, Qin FY, Zhou JW, Ding F, Zhou G, Zhang XS, Zhang ZH, Li ZB. Isoliquiritigenin mitigates oxidative damage after subarachnoid hemorrhage in vivo and in vitro by regulating Nrf2-dependent Signaling Pathway via Targeting of SIRT1. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2022; 105:154262. [PMID: 35896045 DOI: 10.1016/j.phymed.2022.154262] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Revised: 05/31/2022] [Accepted: 06/08/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Oxidative stress is a crucial factor leading to subarachnoid hemorrhage (SAH)-induced early brain injury (EBI). Isoliquiritigenin has been verified as a powerful anti-oxidant in a variety of diseases models and can activate sirtuin 1 and nuclear factor-erythroid 2-related factor 2 (Nrf2) pathways. However, the effects of isoliquiritigenin against EBI after SAH and the underlying mechanisms remain elusive. PURPOSE The primary goal of this study is to verify the therapeutic effects of isoliquiritigenin on EBI after SAH and the possible molecular mechanisms. STUDY DESIGN A prechiasmatic cistern SAH model in rats and a hemoglobin incubation SAH model in primary neurons were established. Isoliquiritigenin was administered after SAH induction. EX527 was employed to inhibit sirtuin 1 activation and ML385 was used to suppress Nrf2 signaling. METHODS In our study, neurological scores, brain edema, biochemical estimation, western blotting, and histopathological study were performed to explore the therapeutic action of isoliquiritigenin against SAH. RESULTS Our data revealed that isoliquiritigenin significantly mitigated oxidative damage after SAH as evidenced by decreased reactive oxygen species overproduction and enhanced intrinsic anti-oxidative system. Concomitant with the reduced oxidative insults, isoliquiritigenin improved neurological function and reduced neuronal death in the early period after SAH. Additionally, isoliquiritigenin administration significantly enhanced Nrf2 and sirtuin 1 expressions. Inhibition of Nrf2 by ML385 reversed the anti-oxidative and neuroprotective effects of isoliquiritigenin against SAH. Moreover, inhibiting sirtuin 1 by EX527 pretreatment suppressed isoliquiritigenin-induced Nrf2-dependent pathway and abated the cerebroprotective effects of isoliquiritigenin. In primary cortical neurons, isoliquiritigenin treatment also ameliorated oxidative insults and repressed neuronal degeneration. The beneficial aspects of isoliquiritigenin were attributed to the promotion of sirtuin 1 and Nrf2 signaling pathways and were counteracted by EX527. CONCLUSION Our findings suggest that isoliquiritigenin exerts cerebroprotective effects against SAH-induced oxidative insults by modulating the Nrf2-mediated anti-oxidant signaling in part through sirtuin 1 activation. Isoliquiritigenin might be a new potential drug candidate for SAH.
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Affiliation(s)
- Jia-Qiang Liu
- The Translational Research Institute for Neurological Disorders of Wannan Medical College, Department of Neurosurgery, the First Affiliated Hospital of Wannan Medical College (Yijishan Hospital of Wannan Medical College), Wuhu 241001, PR China
| | - Xin-Tong Zhao
- The Translational Research Institute for Neurological Disorders of Wannan Medical College, Department of Neurosurgery, the First Affiliated Hospital of Wannan Medical College (Yijishan Hospital of Wannan Medical College), Wuhu 241001, PR China
| | - Fei-Yun Qin
- The Translational Research Institute for Neurological Disorders of Wannan Medical College, Department of Neurosurgery, the First Affiliated Hospital of Wannan Medical College (Yijishan Hospital of Wannan Medical College), Wuhu 241001, PR China
| | - Jia-Wang Zhou
- The Translational Research Institute for Neurological Disorders of Wannan Medical College, Department of Neurosurgery, the First Affiliated Hospital of Wannan Medical College (Yijishan Hospital of Wannan Medical College), Wuhu 241001, PR China
| | - Fei Ding
- The Translational Research Institute for Neurological Disorders of Wannan Medical College, Department of Neurosurgery, the First Affiliated Hospital of Wannan Medical College (Yijishan Hospital of Wannan Medical College), Wuhu 241001, PR China
| | - Gang Zhou
- The Translational Research Institute for Neurological Disorders of Wannan Medical College, Department of Neurosurgery, the First Affiliated Hospital of Wannan Medical College (Yijishan Hospital of Wannan Medical College), Wuhu 241001, PR China
| | - Xiang-Sheng Zhang
- Department of Neurosurgerya, Beijing Friendship Hospital, Capital Medical University, Beijing 100053, China.
| | - Zi-Huan Zhang
- The Translational Research Institute for Neurological Disorders of Wannan Medical College, Department of Neurosurgery, the First Affiliated Hospital of Wannan Medical College (Yijishan Hospital of Wannan Medical College), Wuhu 241001, PR China.
| | - Zhen-Bao Li
- The Translational Research Institute for Neurological Disorders of Wannan Medical College, Department of Neurosurgery, the First Affiliated Hospital of Wannan Medical College (Yijishan Hospital of Wannan Medical College), Wuhu 241001, PR China.
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13
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Habibi P, Ahmadiasl N, Nourazarian A, Yousefi H. Swimming exercise improves SIRT1, NF-κB, and IL-1β protein levels and pancreatic tissue injury in ovariectomized diabetic rats. Horm Mol Biol Clin Investig 2022; 43:345-352. [PMID: 35389569 DOI: 10.1515/hmbci-2021-0069] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Accepted: 03/12/2022] [Indexed: 11/15/2022]
Abstract
OBJECTIVES In this study, we investigated the beneficial effects of swimming exercise on the SIRT1, NF-κB, IL-1β protein levels, and pancreatic tissue damage in an ovariectomized diabetic rat model based on the anti-inflammatory effect of exercise. METHODS Forty mature female Wistar rats were purchased and divided into sham (n=10) and OVX (bilateral ovariectomy) (n=30) groups. The ovariectomized rats were divided into 1-OVX, 2-ovariectomized diabetic (OVX.D), 3-OVX.D + exercise (OVX.D. E). After surgical recovery, animals in the diabetic group received a high-fat diet for one month. Swimming exercise (1 h/day) was performed concurrently with the start of the HFD diet for eight weeks. At the end of the high-fat diet, streptozotocin (30 mg/kg) was injected intraperitoneally. At the end of the second month, pancreatic tissue was collected from the animals after deep anesthesia for molecular evaluation and histology by Western blotting and hematoxylin-eosin, respectively. RESULTS Swimming exercise significantly decreased inflammatory cytokines and tissue damage, and this decrease in cytokine expression appears to be associated with SIRT1 expression. The increase in SIRT1 by training was associated with decreased NF-κB-p65 and IL-1β expression and preventing tissue damage. Induction of diabetes in the ovariectomized group (OVX.D) resulted in a significant increase in NF-κB-p65 and IL-1β proteins and a decrease in the expression of SIRT1 compared with the sham group. However, swimming training significantly reversed these effects compared with the OVX.D group. CONCLUSIONS Increased inflammation of β-cells impairs insulin secretion in estrogen insufficiency. Swimming exercise eliminates inflammation in post-menopausal diabetes and supports the potential to prevent pancreatic activity after menopause.
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Affiliation(s)
- Parisa Habibi
- Department of Physiology, Faculty of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Nasser Ahmadiasl
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Alireza Nourazarian
- Department of Basic Medical Sciences, Khoy University of Medical Sciences, Khoy, Iran
| | - Hadi Yousefi
- Department of Basic Medical Sciences, Khoy University of Medical Sciences, Khoy, Iran
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Cardiovascular, Metabolic and Inflammatory Changes after Ovariectomy and Estradiol Substitution in Hereditary Hypertriglyceridemic Rats. Int J Mol Sci 2022; 23:ijms23052825. [PMID: 35269970 PMCID: PMC8910968 DOI: 10.3390/ijms23052825] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 02/22/2022] [Accepted: 02/28/2022] [Indexed: 01/25/2023] Open
Abstract
Background: If menopause is really independent risk factor for cardiovascular disease is still under debate. We studied if ovariectomy in the model of insulin resistance causes cardiovascular changes, to what extent are these changes reversible by estradiol substitution and if they are accompanied by changes in other organs and tissues. Methods: Hereditary hypertriglyceridemic female rats were divided into three groups: ovariectomized at 8th week (n = 6), ovariectomized with 17-β estradiol substitution (n = 6), and the sham group (n = 5). The strain of abdominal aorta measured by ultrasound, expression of vascular genes, weight and content of myocardium and also non-cardiac parameters were analyzed. Results: After ovariectomy, the strain of abdominal aorta, expression of nitric oxide synthase in abdominal aorta, relative weight of myocardium and of the left ventricle and circulating interleukin-6 decreased; these changes were reversed by estradiol substitution. Interestingly, the content of triglycerides in myocardium did not change after ovariectomy, but significantly increased after estradiol substitution while adiposity index did not change after ovariectomy, but significantly decreased after estradiol substitution. Conclusion: Vascular and cardiac parameters under study differed in their response to ovariectomy and estradiol substitution. This indicates different effects of ovariectomy and estradiol on different cardiovascular but also extracardiac structures.
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15
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Lin Z, Ding Q, Li X, Feng Y, He H, Huang C, Zhu Y. Targeting Epigenetic Mechanisms in Vascular Aging. Front Cardiovasc Med 2022; 8:806988. [PMID: 35059451 PMCID: PMC8764463 DOI: 10.3389/fcvm.2021.806988] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Accepted: 11/30/2021] [Indexed: 12/28/2022] Open
Abstract
Environment, diseases, lack of exercise, and aged tendency of population have becoming crucial factors that induce vascular aging. Vascular aging is unmodifiable risk factor for diseases like diabetes, hypertension, atherosclerosis, and hyperlipidemia. Effective interventions to combat this vascular function decline is becoming increasingly urgent as the rising hospitalization rate caused by vascular aging-related diseases. Fortunately, recent transformative omics approaches have enabled us to examine vascular aging mechanisms at unprecedented levels and precision, which make our understanding of slowing down or reversing vascular aging become possible. Epigenetic viz. DNA methylation, histone modifications, and non-coding RNA-based mechanisms, is a hallmark of vascular aging, its deregulation leads to aberrant transcription changes in tissues. Epigenetics mechanisms by mediating covalent modifications to DNA and histone proteins, consequently, influence the sensitivity and activities of signaling pathways in cells and tissues. A growing body of evidence supports correlations between epigenetic changes and vascular aging. In this article, we will provide a comprehensive overview of epigenetic changes associated with vascular aging based on the recent findings with a focus on molecular mechanisms of action, strategies to reverse epigenetic changes, and future perspectives.
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Affiliation(s)
- Zhongxiao Lin
- State Key Laboratory of Quality Research in Chinese Medicine and School of Pharmacy, Macau University of Science and Technology, Macao SAR, China
- Key Laboratory of Molecular Target and Clinical Pharmacology and National Key Laboratory of Respiratory Diseases, School of Pharmaceutic Sciences and the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Qian Ding
- State Key Laboratory of Quality Research in Chinese Medicine and School of Pharmacy, Macau University of Science and Technology, Macao SAR, China
| | - Xinzhi Li
- State Key Laboratory of Quality Research in Chinese Medicine and School of Pharmacy, Macau University of Science and Technology, Macao SAR, China
| | - Yuliang Feng
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, Botnar Research Centre, University of Oxford, Oxford, United Kingdom
| | - Hao He
- State Key Laboratory of Quality Research in Chinese Medicine and School of Pharmacy, Macau University of Science and Technology, Macao SAR, China
| | - Chuoji Huang
- State Key Laboratory of Quality Research in Chinese Medicine and School of Pharmacy, Macau University of Science and Technology, Macao SAR, China
| | - YiZhun Zhu
- State Key Laboratory of Quality Research in Chinese Medicine and School of Pharmacy, Macau University of Science and Technology, Macao SAR, China
- Shanghai Key Laboratory of Bioactive Small Molecules, Department of Pharmacology, School of Pharmacy, Fudan University, Shanghai, China
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16
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Ajayi EI, Molehin OR, Iyoha AE, Tallapragada DS, Oloyede OI, Tikoo KB. Postmortem mitochondrial membrane permeability transition assessment of apoptotic cell death in brain and liver of insulin resistant, ovariectomised rats. IBRO Neurosci Rep 2021; 11:156-163. [PMID: 34939064 PMCID: PMC8664703 DOI: 10.1016/j.ibneur.2021.09.004] [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: 10/24/2020] [Accepted: 09/23/2021] [Indexed: 11/17/2022] Open
Abstract
The adverse alterations in mitochondrial functions can affect neuronal function negatively, as they play a crucial role in neuronal plasticity and death. Direct measurements of mitochondrial activity, including membrane potential and ATP production, are not easily achieved in post-mortem brain and liver samples because most organ functions cease to work after death; in fact, with increasing post-mortem intervals (PMI), the brain and liver tissues deteriorate rapidly. Standard procedures of mitochondria isolation, protein determination expressed as BSA equivalent, and spectrophotometric assessment of pore opening at 540 nm were employed. Our results showed that (a) intact mitochondria may be isolated from rat brain and liver of these rats after storage in animal body (in situ) at -20 °C for 7 days (168 h, post-mortem), (b) some population of these mitochondria can still take up exogenous Ca2+ and (c) they can still resist osmotically induced large amplitude swelling in a suitable buffer. The need for mitochondrial purity, structural integrity and abundance for functional studies are common hindrances that can encumber mitochondrial research. Therefore, this study is significant to have shown that PMI up to 7 days did not extensively, diminish MMPT pore status in normal and diabetic, ovariectomised rats. This can be relevant for forensic data mining.
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Affiliation(s)
- Ebenezer I.O. Ajayi
- Biochemistry Department,Faculty of Basic and Applied Sciences,College of Science, Engineering and Technology, Osun State University, P.M.B. 4494, Osogbo, Nigeria
- Pharmacology/Toxicology Department, National Institute of Pharmaceutical Education and Research, S. A. S. Nagar (Mohali), Punjab 160 062, India
| | - Olorunfemi R. Molehin
- Department of Biochemistry, Faculty of Science, Ekiti State University Ado-Ekiti, P.M.B. 5363, Ado Ekiti 360001, Nigeria
| | - Alex E. Iyoha
- Biochemistry Department,Faculty of Basic and Applied Sciences,College of Science, Engineering and Technology, Osun State University, P.M.B. 4494, Osogbo, Nigeria
| | - Divya S.P. Tallapragada
- Pharmacology/Toxicology Department, National Institute of Pharmaceutical Education and Research, S. A. S. Nagar (Mohali), Punjab 160 062, India
| | - Omotade I. Oloyede
- Department of Biochemistry, Faculty of Science, Ekiti State University Ado-Ekiti, P.M.B. 5363, Ado Ekiti 360001, Nigeria
| | - Kulbhushan B. Tikoo
- Pharmacology/Toxicology Department, National Institute of Pharmaceutical Education and Research, S. A. S. Nagar (Mohali), Punjab 160 062, India
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Hajializadeh Z, Khaksari M. The protective effects of 17-β estradiol and SIRT1 against cardiac hypertrophy: a review. Heart Fail Rev 2021; 27:725-738. [PMID: 34537933 DOI: 10.1007/s10741-021-10171-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 09/07/2021] [Indexed: 12/27/2022]
Abstract
One of the major causes of morbidity and mortality worldwide is cardiac hypertrophy (CH), which leads to heart failure. Sex differences in CH can be caused by sex hormones or their receptors. The incidence of CH increases in postmenopausal women due to the decrease in female sex hormone 17-β estradiol (E2) during menopause. E2 and its receptors inhibit CH in humans and animal models. Silent information regulator 1 (SIRT1) is a NAD+-dependent HDAC (histone deacetylase) and plays a major role in biological processes, such as inflammation, apoptosis, and oxidative stress responses. Probably SIRT1 because of these effects, is one of the main suppressors of CH and has a cardioprotective effect. On the other hand, estrogen and its agonists are highly efficient in modulating SIRT1 expression. In the present study, we review the protective effects of E2 and SIRT1 against CH.
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Affiliation(s)
- Zahra Hajializadeh
- Physiology Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran
| | - Mohammad Khaksari
- Endocrinology and Metabolism Research Center, Kerman University of Medical Sciences, Kerman, Iran.
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18
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Jiang X, Chen Z, Yu X, Chen J, Sun C, Jing C, Xu L, Liu F, Ni W, Chen L. Lipopolysaccharide-induced depression is associated with estrogen receptor-α/SIRT1/NF-κB signaling pathway in old female mice. Neurochem Int 2021; 148:105097. [PMID: 34119591 DOI: 10.1016/j.neuint.2021.105097] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Revised: 06/05/2021] [Accepted: 06/07/2021] [Indexed: 11/26/2022]
Abstract
The present study aims to investigate the influence of sex/age on depressive-like behaviors in lipopolysaccharide (LPS)-challenged mice model, and explore the underlying mechanisms. Tail suspension test and forced swimming test were used to evaluate the depressive-like behaviors. SIRT1 mRNA expression was assessed by PCR. Levels of 17β-estradiol (E2), SIRT1, NF-κB, tumor necrosis factor α (TNF-α), interleukin 1β (IL-1β) and interleukin 6 (IL-6) were detected by enzyme linked immunosorbent assay (ELISA). In the behavior tests, under the same LPS stimulation, significant depressive-like behavior was observed in young male mice but not in young female mice, however, female mice were more likely to be depressed than male mice in the old age. Moreover, we found age-related depression difference existed only in female mice. In the experiments of mechanism exploration in old female mice, E2 improved LPS-induced depressive-like behavior, and simultaneously elevated SIRT1 levels and downregulated expressions of NF-κB and inflammatory cytokines in the hippocampus and frontal cortex. Interestingly, ERα inhibition, not ERβ inhibition, abolished E2's function. Additionally, SIRT1 antagonist also reversed E2's effects on depressive-like behavior and the expressions of NF-κB and inflammatory cytokines. These results suggested that E2 could protect the old female mice from depression via E2/ERα/SIRT1/NF-κB signaling pathway. In other words, LPS-induced depression was associated with ER-α/SIRT1/NF-κB signaling pathway in old female mice. By comparing the results of mechanism exploration in old male mice and old female mice and the different expression levels of E2, SIRT1, NF-κB and inflammatory cytokines in young female mice and old female mice, we speculate that the age or gender-related depression difference may be associated with the different activation levels of the ERα/SIRT1/NF-κB signaling pathway.
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Affiliation(s)
- Xi Jiang
- Zhejiang University Mingzhou Hospital, Ningbo, 315000, China; Department of Pharmacy, Zhejiang Pharmaceutical College, Ningbo, 315000, China.
| | - Ziwei Chen
- Department of Pharmacy, Zhejiang Pharmaceutical College, Ningbo, 315000, China.
| | - Xuefeng Yu
- Department of Pharmacy, Zhejiang Pharmaceutical College, Ningbo, 315000, China.
| | - Jin Chen
- Zhejiang University Mingzhou Hospital, Ningbo, 315000, China
| | - Chonglu Sun
- Department of Pharmacy, Zhejiang Pharmaceutical College, Ningbo, 315000, China
| | - Changfeng Jing
- Zhejiang University Mingzhou Hospital, Ningbo, 315000, China
| | - Lexing Xu
- Department of Pharmacy, Zhejiang Pharmaceutical College, Ningbo, 315000, China
| | - Fuhe Liu
- Department of Pharmacy, Zhejiang Pharmaceutical College, Ningbo, 315000, China
| | - Wenjuan Ni
- Department of Pharmacy, Zhejiang Pharmaceutical College, Ningbo, 315000, China
| | - Lei Chen
- Department of Pharmacy, Zhejiang Pharmaceutical College, Ningbo, 315000, China
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19
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Costa-Beber LC, Goettems-Fiorin PB, Dos Santos JB, Friske PT, Heck TG, Hirsch GE, Ludwig MS. Ovariectomy reduces the cardiac cytoprotection in rats exposed to particulate air pollutant. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:23395-23404. [PMID: 33443732 DOI: 10.1007/s11356-021-12350-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Accepted: 01/02/2021] [Indexed: 06/12/2023]
Abstract
Fine particulate matter (PM2.5) has been considered a risk factor for cardiovascular diseases by inducing an oxidative and inflammatory phenotype. Besides, the reduction of 17β-estradiol (E2) levels during menopause is a natural risk for cardiovascular outcomes. During the E2 downfall, there is a high requirement of the 70-kDa heat shock proteins (HSP70), which present essential antioxidant, anti-inflammatory, and anti-senescence roles. We investigated if the ovariectomy, an animal model for menopause, could induce additional effects in cardiac health by impairing oxidative and heat shock response parameters of female rats chronically exposed to residual oil fly ash (ROFA; an inorganic fraction of PM2.5). Thus, ROFA was obtained from São Paulo (Brazil) and solubilized it in saline. Further, female Wistar rats were exposed to 50 μL of saline (control group) or ROFA solution (250 μg) (polluted) by intranasal instillation, 5 days/week, 12 weeks. At the 12th week, animals were subdivided into four groups (n = 6 p/group): control, OVX, polluted, and polluted + OVX. Control and polluted were submitted to false surgery, while OVX and polluted + OVX were ovariectomized. ROFA or saline exposure continued for 12 weeks. Ovariectomy reduced the cardiac catalase activity and iHSP70 expression in female rats exposed to ROFA. Neither plasma eHSP72 levels nor H-index (eHSP72 to cardiac iHSP70 ratio) was affected. In conclusion, ovariectomy reduces the cardiac cytoprotection and antioxidant defense, and enhances the susceptibility to premature cellular senescence in rats exposed to ROFA.
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Affiliation(s)
- Lílian Corrêa Costa-Beber
- Research Group in Physiology, Department of Life Sciences, Postgraduate Program in Integral Attention to Health, Regional University of Northwestern Rio Grande do Sul State (UNIJUI), Rua do Comércio, 3000, Bairro Universitário, Ijuí, RS, 98700-000, Brazil.
- Postgraduate Program in Integral Attention to Health (PPGAIS-UNIJUÍ/UNICRUZ), Ijuí, RS, Brazil.
| | - Pauline Brendler Goettems-Fiorin
- Research Group in Physiology, Department of Life Sciences, Postgraduate Program in Integral Attention to Health, Regional University of Northwestern Rio Grande do Sul State (UNIJUI), Rua do Comércio, 3000, Bairro Universitário, Ijuí, RS, 98700-000, Brazil
- Atmospheric Pollution Laboratory, Postgraduate Program in Health Sciences, Federal University of Health Sciences of Porto Alegre (UFCSPA), Rua Sarmento Leite 245, Porto Alegre, RS, Brazil
| | - Jaíne Borges Dos Santos
- Research Group in Physiology, Department of Life Sciences, Postgraduate Program in Integral Attention to Health, Regional University of Northwestern Rio Grande do Sul State (UNIJUI), Rua do Comércio, 3000, Bairro Universitário, Ijuí, RS, 98700-000, Brazil
| | - Paula Taís Friske
- Research Group in Physiology, Department of Life Sciences, Postgraduate Program in Integral Attention to Health, Regional University of Northwestern Rio Grande do Sul State (UNIJUI), Rua do Comércio, 3000, Bairro Universitário, Ijuí, RS, 98700-000, Brazil
| | - Thiago Gomes Heck
- Research Group in Physiology, Department of Life Sciences, Postgraduate Program in Integral Attention to Health, Regional University of Northwestern Rio Grande do Sul State (UNIJUI), Rua do Comércio, 3000, Bairro Universitário, Ijuí, RS, 98700-000, Brazil
- Postgraduate Program in Integral Attention to Health (PPGAIS-UNIJUÍ/UNICRUZ), Ijuí, RS, Brazil
- Medicine Course, Department of Life Sciences, Regional University of Northwestern Rio Grande do Sul State (UNIJUÍ), Ijuí, RS, Brazil
| | - Gabriela Elisa Hirsch
- Research Group in Physiology, Department of Life Sciences, Postgraduate Program in Integral Attention to Health, Regional University of Northwestern Rio Grande do Sul State (UNIJUI), Rua do Comércio, 3000, Bairro Universitário, Ijuí, RS, 98700-000, Brazil
- Postgraduate Program in Integral Attention to Health (PPGAIS-UNIJUÍ/UNICRUZ), Ijuí, RS, Brazil
| | - Mirna Stela Ludwig
- Research Group in Physiology, Department of Life Sciences, Postgraduate Program in Integral Attention to Health, Regional University of Northwestern Rio Grande do Sul State (UNIJUI), Rua do Comércio, 3000, Bairro Universitário, Ijuí, RS, 98700-000, Brazil
- Postgraduate Program in Integral Attention to Health (PPGAIS-UNIJUÍ/UNICRUZ), Ijuí, RS, Brazil
- Medicine Course, Department of Life Sciences, Regional University of Northwestern Rio Grande do Sul State (UNIJUÍ), Ijuí, RS, Brazil
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20
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Rodríguez C, Muñoz M, Contreras C, Prieto D. AMPK, metabolism, and vascular function. FEBS J 2021; 288:3746-3771. [PMID: 33825330 DOI: 10.1111/febs.15863] [Citation(s) in RCA: 50] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 03/04/2021] [Accepted: 04/04/2021] [Indexed: 12/12/2022]
Abstract
Adenosine monophosphate-activated protein kinase (AMPK) is a cellular energy sensor activated during energy stress that plays a key role in maintaining energy homeostasis. This ubiquitous signaling pathway has been implicated in multiple functions including mitochondrial biogenesis, redox regulation, cell growth and proliferation, cell autophagy and inflammation. The protective role of AMPK in cardiovascular function and the involvement of dysfunctional AMPK in the pathogenesis of cardiovascular disease have been highlighted in recent years. In this review, we summarize and discuss the role of AMPK in the regulation of blood flow in response to metabolic demand and the basis of the AMPK physiological anticontractile, antioxidant, anti-inflammatory, and antiatherogenic actions in the vascular system. Investigations by others and us have demonstrated the key role of vascular AMPK in the regulation of endothelial function, redox homeostasis, and inflammation, in addition to its protective role in the hypoxia and ischemia/reperfusion injury. The pathophysiological implications of AMPK involvement in vascular function with regard to the vascular complications of metabolic disease and the therapeutic potential of AMPK activators are also discussed.
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Affiliation(s)
- Claudia Rodríguez
- Departamento de Fisiología, Facultad de Farmacia, Universidad Complutense, Madrid, Spain
| | - Mercedes Muñoz
- Departamento de Fisiología, Facultad de Farmacia, Universidad Complutense, Madrid, Spain
| | - Cristina Contreras
- Departamento de Fisiología, Facultad de Farmacia, Universidad Complutense, Madrid, Spain
| | - Dolores Prieto
- Departamento de Fisiología, Facultad de Farmacia, Universidad Complutense, Madrid, Spain
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21
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肖 珊, 马 郁, 李 婧, 张 彦, 何 泓, 方 春, 王 万. [Angiotensin Ⅱ inhibits AMPK/SIRT1 pathway by inducing oxidative stress in RAW264.7 macrophages]. NAN FANG YI KE DA XUE XUE BAO = JOURNAL OF SOUTHERN MEDICAL UNIVERSITY 2021; 41:384-390. [PMID: 33849829 PMCID: PMC8075794 DOI: 10.12122/j.issn.1673-4254.2021.03.10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Indexed: 11/24/2022]
Abstract
OBJECTIVE To investigate the mechanism by which angiotensin Ⅱ-induced oxidative stress response inhibits AMPK/ SIRT1 signaling in RAW264.7 macrophages. OBJECTIVE RAW264.7 cells were treated with 0.5, 1, 3, 10, or 20 μmol/L angiotensin Ⅱ for 24 h, and the changes in the expressions of AMPK, p-AMPK, and SIRT1 proteins were detected using Western blotting. The intracellular ROS release level was measured and the levels of SOD and MDA were detected. The effects of angiotensin Ⅱ type 1 receptor (AT1R) gene silencing on the cell response to angiotensin Ⅱ treatment were examined by detecting the changes in AMPK, p-AMPK and SIRT1 protein levels. The effects of a ROS inhibitor on cellular AMPK and SIRT1 were also examined. OBJECTIVE Angiotensin Ⅱ stimulation at 20 μmol/L significantly inhibited the phosphorylation of AMPK protein and increased cellular ROS release (P < 0.05). Treatment with 0.5-10 μmol/L angiotensin Ⅱ did not cause significant changes in SOD activity or MDA expression, but angiotensin Ⅱ at the dose of 20 μmol/L significantly inhibited SOD activity in the cells (P < 0.05). In the macrophages with AT1R gene silencing, treatment with angiotensin Ⅱ did not obviously inhibit AMPK phosphorylation or down- regulate SIRT1 expression. In cells treated with the ROS inhibitor, angiotensin Ⅱ failed to lower the level of AMPK phosphorylation or the expression of SIRT1. OBJECTIVE Angiotensin Ⅱ induces oxidative stress to cause disturbance of AMPK/ SIRT1 signaling pathway in macrophages.
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Affiliation(s)
- 珊 肖
- 华中科技大学同济医学院附属武汉市中心医院药学部,湖北 武汉 430014Department of Pharmacy, Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430014, China
| | - 郁文 马
- 华中科技大学同济医学院附属武汉市中心医院药学部,湖北 武汉 430014Department of Pharmacy, Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430014, China
| | - 婧 李
- 广 州中医药大学中药学院,广东 广州 511400School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou 511400, China
| | - 彦红 张
- 广州市第一人民医院中医科,广东 广州 511400Department of Traditional Chinese Medicine, Guangzhou First People's Hospital, Guangzhou 511400, China
| | - 泓 何
- 广州医科大学第三附属医院妇产科,广东 广 州 511400Department of Obstetrics and Gynecology, Third Affiliated Hospital of Guangzhou Medical University, Guangzhou 511400, China
| | - 春香 方
- 华中科技大学同济医学院附属武汉市中心医院药学部,湖北 武汉 430014Department of Pharmacy, Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430014, China
| | - 万铭 王
- 长江航运总医院,湖北 武汉 430000General Hospital of the Yangtze River Shipping, Wuhan 430000, China
- 武汉脑科医院,湖北 武汉 430000Wuhan Brain Hospital, Wuhan 430000, China
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22
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Anklam CFV, Lissarassa YPS, dos Santos AB, Costa-Beber LC, Sulzbacher LM, Goettems-Fiorin PB, Heck TG, Frizzo MN, Ludwig MS. Oxidative and Cellular Stress Markers in Postmenopause Women with Diabetes: The Impact of Years of Menopause. J Diabetes Res 2021; 2021:3314871. [PMID: 34568498 PMCID: PMC8460375 DOI: 10.1155/2021/3314871] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Accepted: 08/28/2021] [Indexed: 02/08/2023] Open
Abstract
Women live approximately one-third of their lives in postmenopause. Among postmenopausal women, type 2 diabetes mellitus (DM2) is one of the most prevalent chronic diseases. These conditions promote alterations in the oxidative, metabolic, and immune-inflammatory profiles marked by higher extracellular 72 kDa-heat shock protein (eHSP72). Here, we investigated whether the time of menopause is associated with oxidative cellular stress marker levels in postmenopausal women with DM2. Sixty-four women were recruited (56.7 ± 12.6 years old) in the pre- (n = 22) and postmenopause (n = 42) period, with (n = 19) or without DM2 (n = 45), and a fasting blood collection was made for the evaluation of metabolic, oxidative, and inflammatory markers. We found that menopause and DM2 influenced metabolic and oxidative parameters and presented synergistic effects on the plasma lipoperoxidation levels. Also, postmenopausal women had the highest eHSP72 concentration levels associated with the years in postmenopause. We conclude that the time of menopause impacts the markers of cellular stress and increases the risk of oxidative stress, mainly when it is associated with DM2.
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Affiliation(s)
- Carolain Felipin Vincensi Anklam
- Research Group in Physiology, Department of Life Sciences, Regional University of Northwestern Rio Grande Do Sul State (UNIJUI), Rua do Comércio, 3000 Bairro Universitário Ijuí RS, Brazil 98700-000
- Postgraduate Program in Integral Attention to Health (PPGAIS-UNIJUÍ/UNICRUZ), Ijuí, RS, Brazil
| | - Yana Picinin Sandri Lissarassa
- Research Group in Physiology, Department of Life Sciences, Regional University of Northwestern Rio Grande Do Sul State (UNIJUI), Rua do Comércio, 3000 Bairro Universitário Ijuí RS, Brazil 98700-000
- Postgraduate Program in Integral Attention to Health (PPGAIS-UNIJUÍ/UNICRUZ), Ijuí, RS, Brazil
| | - Analú Bender dos Santos
- Research Group in Physiology, Department of Life Sciences, Regional University of Northwestern Rio Grande Do Sul State (UNIJUI), Rua do Comércio, 3000 Bairro Universitário Ijuí RS, Brazil 98700-000
- Postgraduate Program in Integral Attention to Health (PPGAIS-UNIJUÍ/UNICRUZ), Ijuí, RS, Brazil
| | - Lílian Corrêa Costa-Beber
- Research Group in Physiology, Department of Life Sciences, Regional University of Northwestern Rio Grande Do Sul State (UNIJUI), Rua do Comércio, 3000 Bairro Universitário Ijuí RS, Brazil 98700-000
- Postgraduate Program in Integral Attention to Health (PPGAIS-UNIJUÍ/UNICRUZ), Ijuí, RS, Brazil
| | - Lucas Machado Sulzbacher
- Research Group in Physiology, Department of Life Sciences, Regional University of Northwestern Rio Grande Do Sul State (UNIJUI), Rua do Comércio, 3000 Bairro Universitário Ijuí RS, Brazil 98700-000
- Postgraduate Program in Integral Attention to Health (PPGAIS-UNIJUÍ/UNICRUZ), Ijuí, RS, Brazil
| | - Pauline Brendler Goettems-Fiorin
- Research Group in Physiology, Department of Life Sciences, Regional University of Northwestern Rio Grande Do Sul State (UNIJUI), Rua do Comércio, 3000 Bairro Universitário Ijuí RS, Brazil 98700-000
- Postgraduate Program in Integral Attention to Health (PPGAIS-UNIJUÍ/UNICRUZ), Ijuí, RS, Brazil
| | - Thiago Gomes Heck
- Research Group in Physiology, Department of Life Sciences, Regional University of Northwestern Rio Grande Do Sul State (UNIJUI), Rua do Comércio, 3000 Bairro Universitário Ijuí RS, Brazil 98700-000
- Postgraduate Program in Integral Attention to Health (PPGAIS-UNIJUÍ/UNICRUZ), Ijuí, RS, Brazil
- Postgraduate Program in Mathematical and Computational Modeling (PPGMMC-UNIJUÍ), Ijuí, RS, Brazil
| | - Matias Nunes Frizzo
- Research Group in Physiology, Department of Life Sciences, Regional University of Northwestern Rio Grande Do Sul State (UNIJUI), Rua do Comércio, 3000 Bairro Universitário Ijuí RS, Brazil 98700-000
- Postgraduate Program in Integral Attention to Health (PPGAIS-UNIJUÍ/UNICRUZ), Ijuí, RS, Brazil
| | - Mirna Stela Ludwig
- Research Group in Physiology, Department of Life Sciences, Regional University of Northwestern Rio Grande Do Sul State (UNIJUI), Rua do Comércio, 3000 Bairro Universitário Ijuí RS, Brazil 98700-000
- Postgraduate Program in Integral Attention to Health (PPGAIS-UNIJUÍ/UNICRUZ), Ijuí, RS, Brazil
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Costa-Beber LC, Goettems-Fiorin PB, Dos Santos JB, Friske PT, Frizzo MN, Heck TG, Hirsch GE, Ludwig MS. Ovariectomy enhances female rats' susceptibility to metabolic, oxidative, and heat shock response effects induced by a high-fat diet and fine particulate matter. Exp Gerontol 2020; 145:111215. [PMID: 33340683 DOI: 10.1016/j.exger.2020.111215] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 11/20/2020] [Accepted: 12/12/2020] [Indexed: 01/21/2023]
Abstract
Obesity and exposure to fine particulate matter (air pollutant PM2.5) are important risk factors for metabolic and cardiovascular diseases. They are also related to early menopause. The reduction of 17β-estradiol (E2) levels during female climacteric, marked by menopause, is of significant concern because of its imminent influence on metabolism, redox and inflammatory status. This complex homeostasis-threatening scenario may induce a heat shock response (HSR) in cells, enhancing the expression of the 70 kDa heat shock protein (HSP70). A failure in this mechanism could predispose women to cardiovascular diseases. In this study, we evaluated if the climacteric could represent an additional risk among obese rats exposed to PM2.5 by worsening lipid, oxidative, and inflammatory parameters and HSP70 in cardiac tissue. We induced obesity in female Wistar rats using a high-fat diet (HFD) (58.3% as fats) and exposed them to 50 μL of saline 0.9% (control, n = 15) or 250 μg residual oil fly ash (ROFA, the inorganic portion of PM2.5) (polluted, n = 15) by intranasal instillation, 5 days/w for 12 weeks. At the 12th week, we subdivided these animals into four groups: control (n = 6), OVX (n = 9), polluted (n = 6) and polluted + OVX (n = 9). OVX and polluted + OVX were submitted to a bilateral ovariectomy (OVX), a surgical model for menopause, while control and polluted received a false surgery (sham). ROFA exposure and HFD consumption were continued for 12 additional weeks, after which the animals were euthanized. ROFA enhanced the susceptibility to ovariectomy-induced dyslipidemia, while ovariectomy predisposed female rats to the ROFA-induced decrease of cardiac iHSP70 expression. Ovariectomy also decreased the IL-6 levels and IL-6/IL-10 in obese animals, reinforcing a metabolic impairment and a failure to respond to unfavorable conditions. Our results support the hypothesis that obese ovariectomized animals are predisposed to a metabolic worsening under polluted conditions and are at higher risk of cardiovascular diseases.
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Affiliation(s)
- Lílian Corrêa Costa-Beber
- Research Group in Physiology, Department of Life Sciences, Regional University of Northwestern Rio Grande do Sul State (UNIJUI), Rua do Comércio, 3000 - Bairro Universitário, Ijuí, RS, Brazil; Postgraduate Program in Integral Attention to Health (PPGAIS-UNIJUÍ/UNICRUZ), Ijuí, RS, Brazil.
| | - Pauline Brendler Goettems-Fiorin
- Research Group in Physiology, Department of Life Sciences, Regional University of Northwestern Rio Grande do Sul State (UNIJUI), Rua do Comércio, 3000 - Bairro Universitário, Ijuí, RS, Brazil; Atmospheric Pollution Laboratory, Postgraduate Program in Health Sciences, Federal University of Health Sciences of Porto Alegre (UFCSPA), Rua Sarmento Leite, 245 Porto Alegre, RS, Brazil
| | - Jaíne Borges Dos Santos
- Research Group in Physiology, Department of Life Sciences, Regional University of Northwestern Rio Grande do Sul State (UNIJUI), Rua do Comércio, 3000 - Bairro Universitário, Ijuí, RS, Brazil
| | - Paula Taís Friske
- Research Group in Physiology, Department of Life Sciences, Regional University of Northwestern Rio Grande do Sul State (UNIJUI), Rua do Comércio, 3000 - Bairro Universitário, Ijuí, RS, Brazil
| | - Matias Nunes Frizzo
- Research Group in Physiology, Department of Life Sciences, Regional University of Northwestern Rio Grande do Sul State (UNIJUI), Rua do Comércio, 3000 - Bairro Universitário, Ijuí, RS, Brazil; Atmospheric Pollution Laboratory, Postgraduate Program in Health Sciences, Federal University of Health Sciences of Porto Alegre (UFCSPA), Rua Sarmento Leite, 245 Porto Alegre, RS, Brazil; Medicine Course, Department of Life Sciences, Regional University of Northwestern Rio Grande do Sul State (UNIJUÍ), Ijuí, RS, Brazil
| | - Thiago Gomes Heck
- Research Group in Physiology, Department of Life Sciences, Regional University of Northwestern Rio Grande do Sul State (UNIJUI), Rua do Comércio, 3000 - Bairro Universitário, Ijuí, RS, Brazil; Postgraduate Program in Integral Attention to Health (PPGAIS-UNIJUÍ/UNICRUZ), Ijuí, RS, Brazil; Medicine Course, Department of Life Sciences, Regional University of Northwestern Rio Grande do Sul State (UNIJUÍ), Ijuí, RS, Brazil
| | - Gabriela Elisa Hirsch
- Research Group in Physiology, Department of Life Sciences, Regional University of Northwestern Rio Grande do Sul State (UNIJUI), Rua do Comércio, 3000 - Bairro Universitário, Ijuí, RS, Brazil; Postgraduate Program in Integral Attention to Health (PPGAIS-UNIJUÍ/UNICRUZ), Ijuí, RS, Brazil
| | - Mirna Stela Ludwig
- Research Group in Physiology, Department of Life Sciences, Regional University of Northwestern Rio Grande do Sul State (UNIJUI), Rua do Comércio, 3000 - Bairro Universitário, Ijuí, RS, Brazil; Postgraduate Program in Integral Attention to Health (PPGAIS-UNIJUÍ/UNICRUZ), Ijuí, RS, Brazil; Medicine Course, Department of Life Sciences, Regional University of Northwestern Rio Grande do Sul State (UNIJUÍ), Ijuí, RS, Brazil
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24
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Kang SC, Jhee JH, Joo YS, Lee SM, Nam KH, Yun HR, Han SH, Yoo TH, Kang SW, Park JT. Association of Reproductive Lifespan Duration and Chronic Kidney Disease in Postmenopausal Women. Mayo Clin Proc 2020; 95:2621-2632. [PMID: 33168161 DOI: 10.1016/j.mayocp.2020.02.034] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Revised: 02/02/2020] [Accepted: 02/17/2020] [Indexed: 12/12/2022]
Abstract
OBJECTIVE To investigate the relationship between endogenous estrogen exposure and renal function, the association of female reproductive life span duration (RLD) and chronic kidney disease (CKD) was analyzed in postmenopausal women. PATIENTS AND METHODS Data were retrieved from the Korean Genome and Epidemiology Study, which was constructed from May 1, 2001, through December 25, 2017. A total of 50,338 and 3155 postmenopausal women were each included in the cross-sectional and longitudinal analyses. The RLD was determined by subtracting the age at menarche from the age at menopause. Participants were grouped into RLD quartiles. Participants with estimated glomerular filtration rates less than 60 mL/min/1.73 m2 were regarded to have CKD. RESULTS In the cross-sectional analysis, mean ± SD age and estimated glomerular filtration rate were 56.3±4.9 years and 93.1±13.6 mL/min/1.73 m2, respectively. Mean ± SD RLD was 34.2±4.0 years. A total of 765 of 50,338 (1.52%) women were found to have CKD. Logistic regression analysis revealed that the odds ratio for CKD was lower in groups with longer RLDs as compared with the shortest RLD group. In longitudinal analysis, postmenopausal women with normal kidney function were followed up for 9.7 years and incident CKD occurred in 221 of 3155 (7.00%) participants. Cox analysis revealed that the risk for CKD development was significantly lower in longer RLD groups. This finding was significant even after adjustments for confounding factors. CONCLUSION The risk for CKD was lower in women with longer RLDs. The amount of endogenous estrogen exposure could be a determining factor for renal function in postmenopausal women.
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Affiliation(s)
- Shin Chan Kang
- Department of Internal Medicine, College of Medicine, Institute of Kidney Disease, Yonsei University, Seoul, Republic of Korea
| | - Jong Hyun Jhee
- Division of Nephrology, Department of Internal Medicine, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Young Su Joo
- Division of Nephrology, Department of Internal Medicine, Myongji Hospital, Goyang, Gyeonggi-do, Republic of Korea
| | - Sang Mi Lee
- Department of Internal Medicine, College of Medicine, Institute of Kidney Disease, Yonsei University, Seoul, Republic of Korea
| | - Ki Heon Nam
- Department of Internal Medicine, College of Medicine, Institute of Kidney Disease, Yonsei University, Seoul, Republic of Korea
| | - Hae-Ryong Yun
- Department of Internal Medicine, College of Medicine, Institute of Kidney Disease, Yonsei University, Seoul, Republic of Korea
| | - Seung Hyeok Han
- Department of Internal Medicine, College of Medicine, Institute of Kidney Disease, Yonsei University, Seoul, Republic of Korea
| | - Tae-Hyun Yoo
- Department of Internal Medicine, College of Medicine, Institute of Kidney Disease, Yonsei University, Seoul, Republic of Korea
| | - Shin-Wook Kang
- Department of Internal Medicine, College of Medicine, Institute of Kidney Disease, Yonsei University, Seoul, Republic of Korea; Severance Biomedical Science Institute, Brain Korea 21 PLUS, Yonsei University, Seoul, Republic of Korea
| | - Jung Tak Park
- Department of Internal Medicine, College of Medicine, Institute of Kidney Disease, Yonsei University, Seoul, Republic of Korea.
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25
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Godo S, Shimokawa H. Gender Differences in Endothelial Function and Coronary Vasomotion Abnormalities. GENDER AND THE GENOME 2020. [DOI: 10.1177/2470289720957012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Introduction: Structural and functional abnormalities of coronary microvasculature, referred to as coronary microvascular dysfunction (CMD), have been implicated in a wide range of cardiovascular diseases and have gained growing attention in patients with chest pain with no obstructive coronary artery disease, especially in females. The central mechanisms of coronary vasomotion abnormalities encompass enhanced coronary vasoconstrictive reactivity (ie, coronary spasm), reduced endothelium-dependent and -independent coronary vasodilator capacities, and increased coronary microvascular resistance. The 2 major endothelium-derived relaxing factors, nitric oxide (NO) and endothelium-dependent hyperpolarization (EDH) factors, modulate vascular tone in a distinct vessel size–dependent manner; NO mainly mediates vasodilatation of relatively large, conduit vessels, while EDH factors in small resistance vessels. Endothelium-dependent hyperpolarization–mediated vasodilatation is more prominent in female resistance arteries, where estrogens exert beneficial effects on endothelium-dependent vasodilatation via multiple mechanisms. In the clinical settings, therapeutic approaches targeting NO are disappointing for the treatment of various cardiovascular diseases, where endothelial dysfunction and CMD are substantially involved. Significance: In this review, we will discuss the current knowledge on the pathophysiology and molecular mechanisms of endothelial function and coronary vasomotion abnormalities from bench to bedside, with a special reference to gender differences. Results: Recent experimental and clinical studies have demonstrated distinct gender differences in endothelial function and coronary vasomotion abnormalities with major clinical implications. Moreover, recent landmark clinical trials regarding the management of stable coronary artery disease have questioned the benefit of percutaneous coronary intervention, supporting the importance of the coronary microvascular physiology. Conclusion: Further characterization and a better understanding of the gender differences in basic vascular biology as well as those in cardiovascular diseases are indispensable to improve health care and patient outcomes in cardiovascular medicine.
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Affiliation(s)
- Shigeo Godo
- Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Hiroaki Shimokawa
- Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
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Surapaneni SK, Bhat ZR, Tikoo K. MicroRNA-941 regulates the proliferation of breast cancer cells by altering histone H3 Ser 10 phosphorylation. Sci Rep 2020; 10:17954. [PMID: 33087811 PMCID: PMC7578795 DOI: 10.1038/s41598-020-74847-7] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Accepted: 08/25/2020] [Indexed: 12/25/2022] Open
Abstract
Breast cancer including triple negative breast cancer (TNBC) represents an important clinical challenge, as these tumours often develop resistance to conventional chemotherapeutics. MicroRNAs play a crucial role in cell-cycle regulation, differentiation, apoptosis, and migration. Herein, we performed Affymetrix Gene Chip miRNA 4.0 microarray and observed differential regulation of miRNAs (75 upregulated and 199 downregulated) in metastatic MDA-MB-231 cells as compared to immortalized human non-tumorigenic breast epithelial (MCF-10A) cells. MicroRNA-941 was significantly upregulated in MDA-MB-231 cells (almost nine-fold increase) in comparison to MCF-10A cells. Transfection of MiRNA-941 inhibitor significantly decreased the proliferation and migration of MDA-MB-231 cells by altering the expressions of p21, Cyclin D1, PP2B-B1, E-cadherin and MMP-13. Interestingly, we provide first evidence that inhibiting miR-941 prevents cell proliferation and phosphorylation of histone H3 at Ser10 residue. Xenograft model of breast cancer was developed by subcutaneous injection of MDA-MB-231 cells into the mammary fat pad of female athymic nude mice (Crl:NU-Foxn1nu). The tumours were allowed to grow to around 60 mm3, thereafter which we divided the animals into seven groups (n = 5). Notably, intratumoral injection of miR-941 inhibitor significantly abolished the tumour growth in MDA-MB-231 xenograft model. 5-Fluorouracil (10 mg/kg, i.p.) was used as positive control in our study. To the best of our knowledge, we report for the first time that targeting miR-941 improves the sensitivity of MDA-MB-231 cells to 5-fluorouracil. This can be of profound clinical significance, as it provides novel therapeutic approach for treating variety of cancers (overexpressing miRNA-941) in general and breast cancers in particular.
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Affiliation(s)
- Sunil Kumar Surapaneni
- Laboratory of Epigenetics and Diseases, Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER) S.A.S. Nagar, Sahibzada Ajit Singh Nagar, India
| | - Zahid Rafiq Bhat
- Laboratory of Epigenetics and Diseases, Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER) S.A.S. Nagar, Sahibzada Ajit Singh Nagar, India
| | - Kulbhushan Tikoo
- Laboratory of Epigenetics and Diseases, Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER) S.A.S. Nagar, Sahibzada Ajit Singh Nagar, India.
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Shabbir A, Rathod KS, Khambata RS, Ahluwalia A. Sex Differences in the Inflammatory Response: Pharmacological Opportunities for Therapeutics for Coronary Artery Disease. Annu Rev Pharmacol Toxicol 2020; 61:333-359. [PMID: 33035428 DOI: 10.1146/annurev-pharmtox-010919-023229] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Coordinated molecular responses are key to effective initiation and resolution of both acute and chronic inflammation. Vascular inflammation plays an important role in initiating and perpetuating atherosclerotic disease, specifically at the site of plaque and subsequent fibrous cap rupture. Both men and women succumb to this disease process, and although management strategies have focused on revascularization and pharmacological therapies in the acute situation to reverse vessel closure and prevent thrombogenesis, data now suggest that regulation of host inflammation may improve both morbidity and mortality, thus supporting the notion that prevention is better than cure. There is a clear sex difference in the incidence of vascular disease, and data confirm biological differences in inflammatory initiation and resolution between men and women. This article reviews contemporary opinions describing the sex difference in the initiation and resolution of inflammatory responses, with a view to explore potential targets for pharmacological intervention.
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Affiliation(s)
- Asad Shabbir
- The William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London EC1M 6BQ, United Kingdom;
| | - Krishnaraj Sinhji Rathod
- The William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London EC1M 6BQ, United Kingdom;
| | - Rayomand Syrus Khambata
- The William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London EC1M 6BQ, United Kingdom;
| | - Amrita Ahluwalia
- The William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London EC1M 6BQ, United Kingdom;
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Ovariectomized rodents as a menopausal metabolic syndrome model. A minireview. Mol Cell Biochem 2020; 475:261-276. [PMID: 32852713 DOI: 10.1007/s11010-020-03879-4] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Accepted: 08/07/2020] [Indexed: 12/20/2022]
Abstract
Bilateral ovariectomy is the best characterized and the most reported animal model of human menopause. Ovariectomized rodents develop insulin resistance (IR) and visceral obesity, the main risk factors in the pathophysiology of metabolic syndrome (MS). These alterations are a consequence of hypoestrogenic status, which produces an augment of visceral fat, high testosterone levels (hyperandrogenism), as well as inflammation, oxidative stress, and metabolic complications, such as dyslipidemia, hepatic steatosis, and endothelial dysfunction, among others. Clinical trials have reported that menopause per se increases the severity and incidence of MS, and causes the highest mortality due to cardiovascular disease in women. Despite all the evidence, there are no reports that clarify the influence of estrogenic deficiency as a cause of MS. In this review, we provide evidence that ovariectomized rodents can be used as a menopausal metabolic syndrome model for evaluating and discovering new, safe, and effective therapeutic approaches in the treatment of cardiometabolic complications associated to MS during menopause.
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Budbazar E, Rodriguez F, Sanchez JM, Seta F. The Role of Sirtuin-1 in the Vasculature: Focus on Aortic Aneurysm. Front Physiol 2020; 11:1047. [PMID: 32982786 PMCID: PMC7477329 DOI: 10.3389/fphys.2020.01047] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Accepted: 07/30/2020] [Indexed: 12/19/2022] Open
Abstract
Sirtuin-1 (SirT1) is a nicotinamide adenine dinucleotide-dependent deacetylase and the best characterized member of the sirtuins family in mammalians. Sirtuin-1 shuttles between the cytoplasm and the nucleus, where it deacetylates histones and non-histone proteins involved in a plethora of cellular processes, including survival, growth, metabolism, senescence, and stress resistance. In this brief review, we summarize the current knowledge on the anti-oxidant, anti-inflammatory, anti-apoptotic, and anti-senescence effects of SirT1 with an emphasis on vascular diseases. Specifically, we describe recent research advances on SirT1-mediated molecular mechanisms in aortic aneurysm (AA), and how these processes relate to oxidant stress and the heme-oxygenase (HO) system. HO-1 and HO-2 catalyze the rate-limiting step of cellular heme degradation and, similar to SirT1, HO-1 exerts beneficial effects in the vasculature through the activation of anti-oxidant, anti-inflammatory, anti-apoptotic, and anti-proliferative signaling pathways. SirT1 and HO-1 are part of an integrated system for cellular stress tolerance, and may positively interact to regulate vascular function. We further discuss sex differences in HO-1 and SirT1 activity or expression, and the potential interactions between the two proteins, in relation to the progression and severity of AA, as well as the ongoing efforts for translational applications of SirT1 activation and HO-1 induction in the treatment of cardiovascular diseases including AA.
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Affiliation(s)
- Enkhjargal Budbazar
- Vascular Biology Section, Boston University School of Medicine, Boston, MA, United States
| | - Francisca Rodriguez
- Department of Physiology, University of Murcia and Biomedical Research Institute in Murcia (IMIB), Murcia, Spain
| | - José M Sanchez
- Department of Physiology, University of Murcia and Biomedical Research Institute in Murcia (IMIB), Murcia, Spain
| | - Francesca Seta
- Vascular Biology Section, Boston University School of Medicine, Boston, MA, United States
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Zuo HL, Xin H, Yan XN, Huang J, Zhang YP, Du H. 17β-Estradiol improves osteoblastic cell function through the Sirt1/NF-κB/MMP-8 pathway. Climacteric 2020; 23:404-409. [PMID: 32410477 DOI: 10.1080/13697137.2020.1758057] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- H.-L. Zuo
- Department of Gynecology and Obstetrics, Second Hospital of Hebei Medical University, Shijiazhuang, China
| | - H. Xin
- Department of Gynecology and Obstetrics, Second Hospital of Hebei Medical University, Shijiazhuang, China
| | - X.-N. Yan
- Department of Ultrasonic Diagnosis and Treatment in Obstetrics and Gynecology, Second Hospital of Hebei Medical University, Shijiazhuang, China
| | - J. Huang
- Department of Gynecology and Obstetrics, Second Hospital of Hebei Medical University, Shijiazhuang, China
| | - Y.-P. Zhang
- Department of Gynecology and Obstetrics, Second Hospital of Hebei Medical University, Shijiazhuang, China
| | - H. Du
- Department of Gynecology and Obstetrics, Second Hospital of Hebei Medical University, Shijiazhuang, China
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Sexual hormones regulate the redox status and mitochondrial function in the brain. Pathological implications. Redox Biol 2020; 31:101505. [PMID: 32201220 PMCID: PMC7212485 DOI: 10.1016/j.redox.2020.101505] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2019] [Revised: 02/11/2020] [Accepted: 03/09/2020] [Indexed: 12/13/2022] Open
Abstract
Compared to other organs, the brain is especially exposed to oxidative stress. In general, brains from young females tend to present lower oxidative damage in comparison to their male counterparts. This has been attributed to higher antioxidant defenses and a better mitochondrial function in females, which has been linked to neuroprotection in this group. However, these differences usually disappear with aging, and the incidence of brain pathologies increases in aged females. Sexual hormones, which suffer a decrease with normal aging, have been proposed as the key factors involved in these gender differences. Here, we provide an overview of redox status and mitochondrial function regulation by sexual hormones and their influence in normal brain aging. Furthermore, we discuss how sexual hormones, as well as phytoestrogens, may play an important role in the development and progression of several brain pathologies, including neurodegenerative diseases such as Alzheimer's and Parkinson's diseases, stroke or brain cancer. Sex hormones are reduced with aging, especially in females, affecting redox balance. Normal aging is associated to a worse redox homeostasis in the brain. Young females show better mitochondrial function and higher antioxidant defenses. Development of brain pathologies is influenced by sex hormones and phytoestrogens.
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Amara VR, Surapaneni SK, Tikoo K. Metformin attenuates cardiovascular and renal injury in uninephrectomized rats on DOCA-salt: Involvement of AMPK and miRNAs in cardioprotection. Toxicol Appl Pharmacol 2019; 362:95-104. [DOI: 10.1016/j.taap.2018.10.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Revised: 09/28/2018] [Accepted: 10/01/2018] [Indexed: 12/19/2022]
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Role of miRNA in the Regulatory Mechanisms of Estrogens in Cardiovascular Ageing. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2018; 2018:6082387. [PMID: 30671171 PMCID: PMC6317101 DOI: 10.1155/2018/6082387] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Accepted: 11/13/2018] [Indexed: 12/24/2022]
Abstract
Cardiovascular diseases are a worldwide health problem and are the leading cause of mortality in developed countries. Together with experimental data, the lower incidence of cardiovascular diseases in women than in men of reproductive age points to the influence of sex hormones at the cardiovascular level and suggests that estrogens play a protective role against cardiovascular disease and that this role is also modified by ageing. Estrogens affect cardiovascular function via their specific estrogen receptors to trigger gene expression changes at the transcriptional level. In addition, emerging studies have proposed a role for microRNAs in the vascular effects mediated by estrogens. miRNAs regulate gene expression by repressing translational processes and have been estimated to be involved in the regulation of approximately 30% of all protein-coding genes in mammals. In this review, we highlight the current knowledge of the role of estrogen-sensitive miRNAs, and their influence in regulating vascular ageing.
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Wu B, Feng J, Yu L, Wang Y, Chen Y, Wei Y, Han J, Feng X, Zhang Y, Di S, Ma Z, Fan C, Ha X. Icariin protects cardiomyocytes against ischaemia/reperfusion injury by attenuating sirtuin 1-dependent mitochondrial oxidative damage. Br J Pharmacol 2018; 175:4137-4153. [PMID: 30051466 PMCID: PMC6177614 DOI: 10.1111/bph.14457] [Citation(s) in RCA: 62] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2017] [Revised: 07/02/2018] [Accepted: 07/12/2018] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND AND PURPOSE Icariin, a major active ingredient in traditional Chinese medicines, is attracting increasing attention because of its unique pharmacological effects against ischaemic heart disease. The histone deacetylase, sirtuin-1, plays a protective role in ischaemia/reperfusion (I/R) injury, and this study was designed to investigate the protective role of icariin in models of cardiac I/R injury and to elucidate the potential involvement of sirtuin-1. EXPERIMENTAL APPROACH I/R injury was simulated in vivo (mouse hearts), ex vivo (isolated rat hearts) and in vitro (neonatal rat cardiomyocytes and H9c2 cells). Prior to I/R injury, animals or cells were exposed to icariin, with or without inhibitors of sirtuin-1 (sirtinol and SIRT1 siRNA). KEY RESULTS In vivo and in vitro, icariin given before I/R significantly improved post-I/R heart contraction and limited the infarct size and leakage of creatine kinase-MB and LDH from the damaged myocardium. Icariin also attenuated I/R-induced mitochondrial oxidative damage, decreasing malondialdehyde content and increasing superoxide dismutase activity and expression of Mn-superoxide dismutase. Icariin significantly improved mitochondrial membrane homeostasis by increasing mitochondrial membrane potential and cytochrome C stabilization, which further inhibited cell apoptosis. Sirtuin-1 was significantly up-regulated in hearts treated with icariin, whereas Ac-FOXO1 was simultaneously down-regulated. Importantly, sirtinol and SIRT1 siRNA either blocked icariin-induced cardioprotection or disrupted icariin-mediated mitochondrial homeostasis. CONCLUSIONS AND IMPLICATIONS Pretreatment with icariin protected cardiomyocytes from I/R-induced oxidative stress through activation of sirtuin-1 /FOXO1 signalling.
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Affiliation(s)
- Bing Wu
- Department of GeriatricsLanzhou General Hospital of the People's Liberation ArmyLanzhouChina
- Department of CardiologyTangdu Hospital, Fourth Military Medical UniversityXi'anChina
| | - Jian‐yu Feng
- Department of Cardiovascular Surgery, Xijing HospitalFourth Military Medical UniversityXi'anChina
| | - Li‐ming Yu
- Department of Cardiovascular SurgeryGeneral Hospital of Shenyang Military Area CommandShenyangChina
| | - Yan‐chun Wang
- Department of GeriatricsLanzhou General Hospital of the People's Liberation ArmyLanzhouChina
| | - Yong‐qing Chen
- Department of CardiologyLanzhou General Hospital of the People's Liberation ArmyLanzhouChina
| | - Yan Wei
- Department of ophthalmologyLanzhou General Hospital of the People's Liberation ArmyLanzhouChina
| | - Jin‐song Han
- Department of Cardiovascular SurgeryGeneral Hospital of Shenyang Military Area CommandShenyangChina
| | - Xiao Feng
- Department of Cardiovascular Surgery, Xijing HospitalFourth Military Medical UniversityXi'anChina
| | - Yu Zhang
- Department of Cardiovascular SurgeryLanzhou General Hospital of the People's Liberation ArmyLanzhouChina
| | - Shou‐yin Di
- Department of Thoracic SurgeryTangdu Hospital, Fourth Military Medical UniversityXi'anChina
| | - Zhi‐qiang Ma
- Department of Thoracic SurgeryTangdu Hospital, Fourth Military Medical UniversityXi'anChina
| | - Chong‐xi Fan
- Department of Thoracic SurgeryTangdu Hospital, Fourth Military Medical UniversityXi'anChina
- Department of Biomedical EngineeringFourth Military Medical UniversityXi'anChina
| | - Xiao‐qin Ha
- Department of Clinical LaboratoryLanzhou General Hospital of the People's Liberation ArmyLanzhouChina
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Chaychi S, Polosa A, Chemtob S, Lachapelle P. Evaluating the neuroprotective effect of 17β-estradiol in rodent models of oxidative retinopathies. Doc Ophthalmol 2018; 137:151-168. [PMID: 30368631 DOI: 10.1007/s10633-018-9658-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2018] [Accepted: 10/15/2018] [Indexed: 12/14/2022]
Abstract
PURPOSE To determine the neuroprotective effect of estrogen on the structure and function of the retina exposed to an oxidative stress. METHODS Male Sprague-Dawley rat pups were exposed to either hyperoxia (O2E: from P8 to P14) or bright light (LE: from P14 to P28) with or without 17 β-estradiol (βE2) treatment. Retinal structure (histology) and function (ERG) were assessed at selected time points. RESULTS In the O2E model, βE2 injections caused a significant reduction of the ERG and a significantly thinner OPL compared to untreated oxygen-exposed group (O2-exposed) rats. In contrast, in the LE model βE2, treatment was beneficial to the retinal structure (thicker ONL) and function (better preserved ERG amplitudes) compared to untreated light-exposed group (light-exposed rats). CONCLUSION Our results show that in conditions where the primary target of the oxidative stress is the outer retina (i.e., the photoreceptors) estrogen can protect the retina, while in situations where the inner retina (or retinal vasculature) is the main site of oxidative damage, estrogen may potentiate the detrimental effect of oxidative stress on the retina.
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Affiliation(s)
- Samaneh Chaychi
- Departments of Ophthalmology and Neurology-Neurosurgery, Faculty of Medicine, McGill University and Research Institute of the McGill University Health Centre, 1001 Decarie Boulevard, Glen Site, Block E, Room EM03238, Montréal, QC, H4A 3J1, Canada
| | - Anna Polosa
- Departments of Ophthalmology and Neurology-Neurosurgery, Faculty of Medicine, McGill University and Research Institute of the McGill University Health Centre, 1001 Decarie Boulevard, Glen Site, Block E, Room EM03238, Montréal, QC, H4A 3J1, Canada
| | - Sylvain Chemtob
- Departments of Pediatrics, Ophthalmology, and Pharmacology, Centre Hospitalier Universitaire Ste-Justine Research Center, Montréal, QC, Canada
| | - Pierre Lachapelle
- Departments of Ophthalmology and Neurology-Neurosurgery, Faculty of Medicine, McGill University and Research Institute of the McGill University Health Centre, 1001 Decarie Boulevard, Glen Site, Block E, Room EM03238, Montréal, QC, H4A 3J1, Canada.
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Pérez-Cremades D, Mompeón A, Vidal-Gómez X, Hermenegildo C, Novella S. miRNA as a New Regulatory Mechanism of Estrogen Vascular Action. Int J Mol Sci 2018; 19:ijms19020473. [PMID: 29415433 PMCID: PMC5855695 DOI: 10.3390/ijms19020473] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Revised: 01/31/2018] [Accepted: 02/01/2018] [Indexed: 01/01/2023] Open
Abstract
The beneficial effects of estrogen on the cardiovascular system have been reported extensively. In fact, the incidence of cardiovascular diseases in women is lower than in age-matched men during their fertile stage of life, a benefit that disappears after menopause. These sex-related differences point to sexual hormones, mainly estrogen, as possible cardiovascular protective factors. The regulation of vascular function by estrogen is mainly related to the maintenance of normal endothelial function and is mediated by both direct and indirect gene transcription through the activity of specific estrogen receptors. Some of these mechanisms are known, but many remain to be elucidated. In recent years, microRNAs have been established as non-coding RNAs that regulate the expression of a high percentage of protein-coding genes in mammals and are related to the correct function of human physiology. Moreover, within the cardiovascular system, miRNAs have been related to physiological and pathological conditions. In this review, we address what is known about the role of estrogen-regulated miRNAs and their emerging involvement in vascular biology.
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Affiliation(s)
- Daniel Pérez-Cremades
- Department of Physiology, Faculty of Medicine and Dentistry, University of Valencia, 46010 Valencia, Spain.
- INCLIVA Biomedical Research Institute, 46010 Valencia, Spain.
| | - Ana Mompeón
- Department of Physiology, Faculty of Medicine and Dentistry, University of Valencia, 46010 Valencia, Spain.
- INCLIVA Biomedical Research Institute, 46010 Valencia, Spain.
| | - Xavier Vidal-Gómez
- Department of Physiology, Faculty of Medicine and Dentistry, University of Valencia, 46010 Valencia, Spain.
- INCLIVA Biomedical Research Institute, 46010 Valencia, Spain.
| | - Carlos Hermenegildo
- Department of Physiology, Faculty of Medicine and Dentistry, University of Valencia, 46010 Valencia, Spain.
- INCLIVA Biomedical Research Institute, 46010 Valencia, Spain.
| | - Susana Novella
- Department of Physiology, Faculty of Medicine and Dentistry, University of Valencia, 46010 Valencia, Spain.
- INCLIVA Biomedical Research Institute, 46010 Valencia, Spain.
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Estrogen modulates vascular smooth muscle cell function through downregulation of SIRT1. Oncotarget 2017; 8:110039-110051. [PMID: 29299128 PMCID: PMC5746363 DOI: 10.18632/oncotarget.22546] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2017] [Accepted: 10/27/2017] [Indexed: 12/11/2022] Open
Abstract
Background There are sex differences in the incidence and severity of cardiovascular disease. Although an estrogen-mediated vasculoprotective effect is widely accepted, clinical trial results have been conflicting and the detailed mechanisms are still unclear. Sirtuin 1 (SIRT1), a class III histone deacetylase, may protect against vascular aging and atherosclerosis; however, the effects of estrogen on SIRT1 expression and vascular smooth muscle cell (VSMC) behavior remain unknown. Materials and Methods We ovariectomized (OVX) female, wild-type, C57BL/6J mice, which were randomized into non-estrogen- and estrogen-supplemented groups. We also treated A7r5 VSMCs with 17-β-estradiol and resveratrol, a SIRT1 activator, in vitro, and measured the expression of SIRT1 and apoptotic markers, as well as proliferation, viability, and migration. Results Aortic tissue from OVX mice exhibited marked VSMC hyperplasia and upregulation of SIRT1, which was reversed by 17-β-estradiol supplementation, as assessed by western blotting and immunohistochemical staining. In vitro, 17-β-estradiol downregulated SIRT1 expression in a dose- and time-dependent manner, increased apoptosis, and reduced proliferation, viability, and migration. Resveratrol reversed these effects through the activation of SIRT1. Estrogen appeared to mediate its effects through the Akt and ERK pathways. Conclusions Estrogen may regulate cardiovascular health via the expression of SIRT1, possibly through the AKT and ERK signaling pathways.
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Li S, Gupte AA. The Role of Estrogen in Cardiac Metabolism and Diastolic Function. Methodist Debakey Cardiovasc J 2017; 13:4-8. [PMID: 28413575 DOI: 10.14797/mdcj-13-1-4] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Heart failure with preserved ejection fraction (HFpEF) has similar prevalence and prognosis as HF with reduced EF, but there is no approved treatment for HFpEF. HFpEF is common in postmenopausal women, which suggests that the absence of estrogen (E2) plays a role in its pathophysiology. With the country's growing elderly population, the prevalence of HFpEF is rapidly increasing. This has triggered a renewed urgency in finding novel approaches to preventing and slowing the progression of HFpEF. In this review, we address the role of E2 in left ventricular diastolic function and how it impacts women with HFpEF as well as animal models. We also discuss the primary potential mechanisms that represent critical nodes in the mechanistic pathways of HFpEF and how new treatments could be developed to target those mechanisms.
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Affiliation(s)
- Shumin Li
- Houston Methodist Research Institute, Houston, Texas
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Morselli E, Santos RS, Criollo A, Nelson MD, Palmer BF, Clegg DJ. The effects of oestrogens and their receptors on cardiometabolic health. Nat Rev Endocrinol 2017; 13:352-364. [PMID: 28304393 DOI: 10.1038/nrendo.2017.12] [Citation(s) in RCA: 112] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Cardiovascular disease (CVD) is one of the leading causes of mortality in developed countries. The incidence of CVD is sexually dimorphic, and research has focused on the contribution of sex steroids to the development and progression of the cardiometabolic syndrome, which is defined as a clustering of interrelated risk factors that promote the development of atherosclerosis (which can lead to CVD) and type 2 diabetes mellitus. Data are inconclusive as to how sex steroids and their respective receptors increase or suppress the risk of developing the cardiometabolic syndrome and thus CVD. In this Review, we discuss the potential role, or roles, of sex hormones in cardiometabolic health by first focusing on the influence of oestrogens and their receptors on the risk of developing cardiometabolic syndrome and CVD. We also highlight what is known about testosterone and its potential role in protecting against the development of the cardiometabolic syndrome and CVD. Given the inconclusive nature of the data regarding the direct effects of each sex hormone, we advocate and highlight the importance of studying the relative levels and the ratio of sex hormones to each other, as well as the use of cross sex hormone therapy and its effect on cardiometabolic health.
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Affiliation(s)
- Eugenia Morselli
- Department of Physiology, Faculty of Biological Sciences, Pontificia Universidad Católica de Chile, Santiago 8331150, Chile
| | - Roberta S Santos
- Obesity and Comorbidities Research Center, Institute of Biology, State University of Campinas, Campinas 1, 3083-864, Brazil
- Cedars-Sinai Diabetes and Obesity Research Institute, Department of Biomedical Research, Los Angeles, California 90048, USA
| | - Alfredo Criollo
- Advanced Center for Chronic Diseases (ACCDiS) and Center for Molecular Studies of the Cell (CEMC), Santiago 8380000, Chile
- Instituto de Investigación en Ciencias Odontológicas (ICOD), Facultad de Odontología, Universidad de Chile, Santiago 8380492, Chile
| | - Michael D Nelson
- Applied Physiology and Advanced Imaging Laboratory, Department of Kinesiology, University of Texas at Arlington, Texas 76019, USA
| | - Biff F Palmer
- Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, Texas 75390, USA
| | - Deborah J Clegg
- Cedars-Sinai Diabetes and Obesity Research Institute, Department of Biomedical Research, Los Angeles, California 90048, USA
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Natural mineral-rich water ingestion by ovariectomized fructose-fed Sprague-Dawley rats: effects on sirtuin 1 and glucocorticoid signaling pathways. Menopause 2017; 24:563-573. [DOI: 10.1097/gme.0000000000000780] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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41
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Metabolism and chromatin dynamics in health and disease. Mol Aspects Med 2017; 54:1-15. [DOI: 10.1016/j.mam.2016.09.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2016] [Revised: 09/22/2016] [Accepted: 09/27/2016] [Indexed: 01/04/2023]
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Li T, Jiang S, Yang Z, Ma Z, Yi W, Wang D, Yang Y. Targeting the energy guardian AMPK: another avenue for treating cardiomyopathy? Cell Mol Life Sci 2017; 74:1413-1429. [PMID: 27815596 PMCID: PMC11107559 DOI: 10.1007/s00018-016-2407-7] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2016] [Revised: 10/25/2016] [Accepted: 11/01/2016] [Indexed: 12/11/2022]
Abstract
5'-AMP-activated protein kinase (AMPK) is a pivotal regulator of endogenous defensive molecules in various pathological processes. The AMPK signaling regulates a variety of intracellular intermedial molecules involved in biological reactions, including glycogen metabolism, protein synthesis, and cardiac fibrosis, in response to hypertrophic stimuli. Studies have revealed that the activation of AMPK performs a protective role in cardiovascular diseases, whereas its function in cardiac hypertrophy and cardiomyopathy remains elusive and poorly understood. In view of the current evidence of AMPK, we introduce the biological information of AMPK and cardiac hypertrophy as well as some upstream activators of AMPK. Next, we discuss two important types of cardiomyopathy involving AMPK, RKAG2 cardiomyopathy, and hypertrophic cardiomyopathy. Eventually, therapeutic research, genetic screening, conflicts, obstacles, challenges, and potential directions are also highlighted in this review, aimed at providing a comprehensive understanding of AMPK for readers.
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Affiliation(s)
- Tian Li
- Department of Thoracic and Cardiovascular Surgery, Affiliated Drum Tower Hospital of Nanjing University Medical School, 321 Zhongshan Road, Nanjing, 210008, Jiangsu, China
- Department of Biomedical Engineering, The Fourth Military Medical University, 169 Changle West Road, Xi'an, 710032, China
| | - Shuai Jiang
- Department of Aerospace Medicine, The Fourth Military Medical University, 169 Changle West Road, Xi'an, 710032, China
| | - Zhi Yang
- Department of Biomedical Engineering, The Fourth Military Medical University, 169 Changle West Road, Xi'an, 710032, China
| | - Zhiqiang Ma
- Department of Thoracic Surgery, Tangdu Hospital, The Fourth Military Medical University, 1 Xinsi Road, Xi'an, 710038, China
| | - Wei Yi
- Department of Cardiovascular Surgery, Xijing Hospital, The Fourth Military Medical University, 127 Changle West Road, Xi'an, 710038, China
| | - Dongjin Wang
- Department of Thoracic and Cardiovascular Surgery, Affiliated Drum Tower Hospital of Nanjing University Medical School, 321 Zhongshan Road, Nanjing, 210008, Jiangsu, China.
| | - Yang Yang
- Department of Thoracic and Cardiovascular Surgery, Affiliated Drum Tower Hospital of Nanjing University Medical School, 321 Zhongshan Road, Nanjing, 210008, Jiangsu, China.
- Department of Biomedical Engineering, The Fourth Military Medical University, 169 Changle West Road, Xi'an, 710032, China.
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Guo JM, Shu H, Wang L, Xu JJ, Niu XC, Zhang L. SIRT1-dependent AMPK pathway in the protection of estrogen against ischemic brain injury. CNS Neurosci Ther 2017; 23:360-369. [PMID: 28256111 DOI: 10.1111/cns.12686] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2017] [Revised: 01/22/2017] [Accepted: 02/07/2017] [Indexed: 01/06/2023] Open
Abstract
AIMS Stroke is a major cause of mortality and disability, especially for postmenopausal women. In view of the protective action of estrogen, hormone therapy remains the only effective way to limit this risk. The objective of this study was to investigate the efficiency and underlying mechanisms of estrogen neuroprotection. METHODS Subcutaneous injection of 17β-estradiol in rats after ovariectomy (OVX) was used to manipulate estrogen level and explore the effects of estrogen in cerebral ischemic damage both in vivo and in vitro. Silent mating type information regulation 2 homolog 1 (SIRT1) knockout mice and adenosine monophosphate (AMP)-activated kinase (AMPK) inhibitor Compound C were also used to investigate the underlying pathway of estrogen. RESULTS Estrogen deficiency induced by OVX aggravated brain infarction in experimentally induced cerebral ischemia rats, whereas estrogen pretreatment reduced ischemia-induced cerebral injuries. Neurons of estrogen deficiency models were susceptible to apoptosis under oxygen-glucose deprivation (OGD). In contrast, neurons with estrogen-supplemented serum exhibited restored resistance to cell apoptosis. In OGD neurons, estrogen promoted AMPK activation through estrogen receptor α, and neuroprotection of estrogen was prevented by AMPK inhibition. Estrogen increased SIRT1 expression and activation, and estrogen-induced AMPK activation disappeared in SIRT1 knockout neurons. Moreover, estrogen-induced neuroprotection was abolished in SIRT1 knockout mice and AMPK-inhibited rats. CONCLUSION Our data support that estrogen protects against ischemic stroke through preventing neuron death via the SIRT1-dependent AMPK pathway.
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Affiliation(s)
- Jin-Min Guo
- Department of Pharmacology, Jinan Military General Hospital, Jinan, Shandong, China
| | - He Shu
- Department of Pharmacology, Jinan Military General Hospital, Jinan, Shandong, China
| | - Lei Wang
- Department of Orthopaedics, Jinan Military General Hospital, Jinan, Shandong, China
| | - Jian-Jiang Xu
- Department of Pharmacology, Jinan Military General Hospital, Jinan, Shandong, China
| | - Xue-Cai Niu
- Department of Radiotheropy, The Forth Hospital of Jinan City, Jinan, Shandong, China
| | - Li Zhang
- Department of Pharmacology, Jinan Military General Hospital, Jinan, Shandong, China
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Das SK, Patel VB, Basu R, Wang W, DesAulniers J, Kassiri Z, Oudit GY. Females Are Protected From Iron-Overload Cardiomyopathy Independent of Iron Metabolism: Key Role of Oxidative Stress. J Am Heart Assoc 2017; 6:JAHA.116.003456. [PMID: 28115312 PMCID: PMC5523622 DOI: 10.1161/jaha.116.003456] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Background Sex‐related differences in cardiac function and iron metabolism exist in humans and experimental animals. Male patients and preclinical animal models are more susceptible to cardiomyopathies and heart failure. However, whether similar differences are seen in iron‐overload cardiomyopathy is poorly understood. Methods and Results Male and female wild‐type and hemojuvelin‐null mice were injected and fed with a high‐iron diet, respectively, to develop secondary iron overload and genetic hemochromatosis. Female mice were completely protected from iron‐overload cardiomyopathy, whereas iron overload resulted in marked diastolic dysfunction in male iron‐overloaded mice based on echocardiographic and invasive pressure‐volume analyses. Female mice demonstrated a marked suppression of iron‐mediated oxidative stress and a lack of myocardial fibrosis despite an equivalent degree of myocardial iron deposition. Ovariectomized female mice with iron overload exhibited essential pathophysiological features of iron‐overload cardiomyopathy showing distinct diastolic and systolic dysfunction, severe myocardial fibrosis, increased myocardial oxidative stress, and increased expression of cardiac disease markers. Ovariectomy prevented iron‐induced upregulation of ferritin, decreased myocardial SERCA2a levels, and increased NCX1 levels. 17β‐Estradiol therapy rescued the iron‐overload cardiomyopathy in male wild‐type mice. The responses in wild‐type and hemojuvelin‐null female mice were remarkably similar, highlighting a conserved mechanism of sex‐dependent protection from iron‐overload‐mediated cardiac injury. Conclusions Male and female mice respond differently to iron‐overload‐mediated effects on heart structure and function, and females are markedly protected from iron‐overload cardiomyopathy. Ovariectomy in female mice exacerbated iron‐induced myocardial injury and precipitated severe cardiac dysfunction during iron‐overload conditions, whereas 17β‐estradiol therapy was protective in male iron‐overloaded mice.
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Affiliation(s)
- Subhash K Das
- Division of Cardiology, Department of Medicine, University of Alberta, Edmonton, Alberta, Canada.,Mazankowski Alberta Heart Institute, University of Alberta, Edmonton, Alberta, Canada
| | - Vaibhav B Patel
- Division of Cardiology, Department of Medicine, University of Alberta, Edmonton, Alberta, Canada.,Mazankowski Alberta Heart Institute, University of Alberta, Edmonton, Alberta, Canada
| | - Ratnadeep Basu
- Division of Cardiology, Department of Medicine, University of Alberta, Edmonton, Alberta, Canada.,Mazankowski Alberta Heart Institute, University of Alberta, Edmonton, Alberta, Canada
| | - Wang Wang
- Department of Physiology, University of Alberta, Edmonton, Alberta, Canada.,Mazankowski Alberta Heart Institute, University of Alberta, Edmonton, Alberta, Canada
| | - Jessica DesAulniers
- Division of Cardiology, Department of Medicine, University of Alberta, Edmonton, Alberta, Canada.,Mazankowski Alberta Heart Institute, University of Alberta, Edmonton, Alberta, Canada
| | - Zamaneh Kassiri
- Department of Physiology, University of Alberta, Edmonton, Alberta, Canada.,Mazankowski Alberta Heart Institute, University of Alberta, Edmonton, Alberta, Canada
| | - Gavin Y Oudit
- Division of Cardiology, Department of Medicine, University of Alberta, Edmonton, Alberta, Canada .,Department of Physiology, University of Alberta, Edmonton, Alberta, Canada.,Mazankowski Alberta Heart Institute, University of Alberta, Edmonton, Alberta, Canada
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45
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Vanhoutte PM, Shimokawa H, Feletou M, Tang EHC. Endothelial dysfunction and vascular disease - a 30th anniversary update. Acta Physiol (Oxf) 2017; 219:22-96. [PMID: 26706498 DOI: 10.1111/apha.12646] [Citation(s) in RCA: 556] [Impact Index Per Article: 79.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2015] [Revised: 10/27/2015] [Accepted: 12/17/2015] [Indexed: 02/06/2023]
Abstract
The endothelium can evoke relaxations of the underlying vascular smooth muscle, by releasing vasodilator substances. The best-characterized endothelium-derived relaxing factor (EDRF) is nitric oxide (NO) which activates soluble guanylyl cyclase in the vascular smooth muscle cells, with the production of cyclic guanosine monophosphate (cGMP) initiating relaxation. The endothelial cells also evoke hyperpolarization of the cell membrane of vascular smooth muscle (endothelium-dependent hyperpolarizations, EDH-mediated responses). As regards the latter, hydrogen peroxide (H2 O2 ) now appears to play a dominant role. Endothelium-dependent relaxations involve both pertussis toxin-sensitive Gi (e.g. responses to α2 -adrenergic agonists, serotonin, and thrombin) and pertussis toxin-insensitive Gq (e.g. adenosine diphosphate and bradykinin) coupling proteins. New stimulators (e.g. insulin, adiponectin) of the release of EDRFs have emerged. In recent years, evidence has also accumulated, confirming that the release of NO by the endothelial cell can chronically be upregulated (e.g. by oestrogens, exercise and dietary factors) and downregulated (e.g. oxidative stress, smoking, pollution and oxidized low-density lipoproteins) and that it is reduced with ageing and in the course of vascular disease (e.g. diabetes and hypertension). Arteries covered with regenerated endothelium (e.g. following angioplasty) selectively lose the pertussis toxin-sensitive pathway for NO release which favours vasospasm, thrombosis, penetration of macrophages, cellular growth and the inflammatory reaction leading to atherosclerosis. In addition to the release of NO (and EDH, in particular those due to H2 O2 ), endothelial cells also can evoke contraction of the underlying vascular smooth muscle cells by releasing endothelium-derived contracting factors. Recent evidence confirms that most endothelium-dependent acute increases in contractile force are due to the formation of vasoconstrictor prostanoids (endoperoxides and prostacyclin) which activate TP receptors of the vascular smooth muscle cells and that prostacyclin plays a key role in such responses. Endothelium-dependent contractions are exacerbated when the production of nitric oxide is impaired (e.g. by oxidative stress, ageing, spontaneous hypertension and diabetes). They contribute to the blunting of endothelium-dependent vasodilatations in aged subjects and essential hypertensive and diabetic patients. In addition, recent data confirm that the release of endothelin-1 can contribute to endothelial dysfunction and that the peptide appears to be an important contributor to vascular dysfunction. Finally, it has become clear that nitric oxide itself, under certain conditions (e.g. hypoxia), can cause biased activation of soluble guanylyl cyclase leading to the production of cyclic inosine monophosphate (cIMP) rather than cGMP and hence causes contraction rather than relaxation of the underlying vascular smooth muscle.
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Affiliation(s)
- P. M. Vanhoutte
- State Key Laboratory of Pharmaceutical Biotechnology and Department of Pharmacology and Pharmacy; Li Ka Shing Faculty of Medicine; The University of Hong Kong; Hong Kong City Hong Kong
| | - H. Shimokawa
- Department of Cardiovascular Medicine; Tohoku University; Sendai Japan
| | - M. Feletou
- Department of Cardiovascular Research; Institut de Recherches Servier; Suresnes France
| | - E. H. C. Tang
- State Key Laboratory of Pharmaceutical Biotechnology and Department of Pharmacology and Pharmacy; Li Ka Shing Faculty of Medicine; The University of Hong Kong; Hong Kong City Hong Kong
- School of Biomedical Sciences; Li Ka Shing Faculty of Medicine; The University of Hong Kong; Hong Kong City Hong Kong
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Leung SWS, Vanhoutte PM. Endothelium-dependent hyperpolarization: age, gender and blood pressure, do they matter? Acta Physiol (Oxf) 2017; 219:108-123. [PMID: 26548576 DOI: 10.1111/apha.12628] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2015] [Revised: 09/21/2015] [Accepted: 11/02/2015] [Indexed: 12/14/2022]
Abstract
Under physiological conditions, the endothelium generates vasodilator signals [prostacyclin, nitric oxide NO and endothelium-dependent hyperpolarization (EDH)], for the regulation of vascular tone. The relative importance of these two signals depends on the diameter of the blood vessels: as the diameter of the arteries decreases, the contribution of EDH to the regulation of vascular tone increases. The mechanism involved in EDH varies with species and blood vessel types; nevertheless, activation of endothelial intermediate- and small-conductance calcium-activated potassium channels (IKCa and SKCa , respectively) is characteristic of the EDH pathway. IKCa - and SKCa -mediated EDH are reduced with endothelial dysfunction, which develops with ageing and hypertension, and is less pronounced in female than in age-matched male until after menopause. Impaired EDH-mediated relaxation is related to a reduced involvement of SKCa , so that the response becomes more dependent on IKCa . The latter depends on the activation of adenosine monophosphate-activated protein kinase (AMPK) and silent information regulator T1 (SIRT1), proteins associated with the process of cellular senescence and vascular signalling in response to the female hormone. An understanding of the role of AMPK and/or SIRT1 in EDH-like responses may help identifying effective pharmacological strategies to prevent the development of vascular complications of different aetiologies.
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Affiliation(s)
- S. W. S. Leung
- Department of Pharmacology & Pharmacy; University of Hong Kong; Hong Kong Hong Kong SAR China
| | - P. M. Vanhoutte
- Department of Pharmacology & Pharmacy; University of Hong Kong; Hong Kong Hong Kong SAR China
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Tikoo K, Sharma E, Amara VR, Pamulapati H, Dhawale VS. Metformin Improves Metabolic Memory in High Fat Diet (HFD)-induced Renal Dysfunction. J Biol Chem 2016; 291:21848-21856. [PMID: 27551045 DOI: 10.1074/jbc.c116.732990] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2016] [Revised: 08/04/2016] [Indexed: 12/14/2022] Open
Abstract
Recently, we have shown that high fat diet (HFD) in vivo and in vitro generates metabolic memory by altering H3K36me2 and H3K27me3 on the promoter of FOXO1 (transcription factor of gluconeogenic genes) (Kumar, S., Pamulapati, H., and Tikoo, K. (2016) Mol. Cell. Endocrinol. 422, 233-242). Here we checked the hypothesis whether concomitant diet reversal and metformin could overcome HFD-induced metabolic memory and renal damage. Male adult Sprague-Dawley rats were rendered insulin-resistant by feeding high fat diet for 16 weeks. Then the rats were subjected to diet reversal alone and along with metformin for 8 weeks. Biochemical and histological markers of insulin resistance and kidney function were measured. Blood pressure and in vivo vascular reactivity to angiotensin II (200 ng kg-1) were also checked. Diet reversal could improve lipid profile but could not prevent renal complications induced by HFD. Interestingly, metformin along with diet reversal restored the levels of blood glucose, triglycerides, cholesterol, blood urea nitrogen, and creatinine. In kidney, metformin increased the activation of AMP-activated protein kinase (AMPK) and decreased inflammatory markers (COX-2 and IL-1β) and apoptotic markers (poly(ADP-ribose) polymerase (PARP) and caspase 3). Metformin was effective in lowering elevated basal blood pressure and acute change in mean arterial pressure in response to angiotensin II (Ang II). It also attenuated tubulointerstitial fibrosis and glomerulosclerosis induced by HFD feeding in kidney. Here we report, for the first time, that metformin treatment overcomes metabolic memory and prevents HFD-induced renal damage.
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Affiliation(s)
- Kulbhushan Tikoo
- From the Laboratory of Epigenetics and Diseases, Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research, S.A.S. Nagar (Mohali), Punjab-160062, India
| | - Ekta Sharma
- From the Laboratory of Epigenetics and Diseases, Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research, S.A.S. Nagar (Mohali), Punjab-160062, India
| | - Venkateswara Rao Amara
- From the Laboratory of Epigenetics and Diseases, Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research, S.A.S. Nagar (Mohali), Punjab-160062, India
| | - Himani Pamulapati
- From the Laboratory of Epigenetics and Diseases, Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research, S.A.S. Nagar (Mohali), Punjab-160062, India
| | - Vaibhav Shrirang Dhawale
- From the Laboratory of Epigenetics and Diseases, Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research, S.A.S. Nagar (Mohali), Punjab-160062, India
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Bertoldo MJ, Faure M, Dupont J, Froment P. AMPK: a master energy regulator for gonadal function. Front Neurosci 2015; 9:235. [PMID: 26236179 PMCID: PMC4500899 DOI: 10.3389/fnins.2015.00235] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2015] [Accepted: 06/19/2015] [Indexed: 12/11/2022] Open
Abstract
From C. elegans to mammals (including humans), nutrition and energy metabolism significantly influence reproduction. At the cellular level, some detectors of energy status indicate whether energy reserves are abundant (obesity), or poor (diet restriction). One of these detectors is AMPK (5′ AMP-activated protein kinase), a protein kinase activated by ATP deficiency but also by several natural substances such as polyphenols or synthetic molecules like metformin, used in the treatment of insulin resistance. AMPK is expressed in muscle and liver, but also in the ovary and testis. This review focuses on the main effects of AMPK identified in gonadal cells. We describe the role of AMPK in gonadal steroidogenesis, in proliferation and survival of somatic gonadal cells and in the maturation of oocytes or spermatozoa. We discuss also the role of AMPK in germ and somatic cell interactions within the cumulus-oocyte complex and in the blood testis barrier. Finally, the interface in the gonad between AMPK and modification of metabolism is reported and discussion about the role of AMPK on fertility, in regards to the treatment of infertility associated with insulin resistance (male obesity, polycystic ovary syndrome).
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Affiliation(s)
- Michael J Bertoldo
- Discipline of Obstetrics and Gynaecology, School of Women's and Children's Health, University of New South Wales Sydney, NSW, Australia
| | - Melanie Faure
- Unité de Physiologie de la Reproduction et des Comportements, Institut National de la Recherche Agronomique, UMR85 Nouzilly, France
| | - Joëlle Dupont
- Unité de Physiologie de la Reproduction et des Comportements, Institut National de la Recherche Agronomique, UMR85 Nouzilly, France
| | - Pascal Froment
- Unité de Physiologie de la Reproduction et des Comportements, Institut National de la Recherche Agronomique, UMR85 Nouzilly, France
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Tallapragada DSP, Karpe PA, Tikoo K. Long-lasting partnership between insulin resistance and endothelial dysfunction: role of metabolic memory. Br J Pharmacol 2015; 172:4012-23. [PMID: 25825057 DOI: 10.1111/bph.13145] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2014] [Revised: 03/17/2015] [Accepted: 03/25/2015] [Indexed: 01/13/2023] Open
Abstract
BACKGROUND AND PURPOSE The persistence of deleterious effects of hyperglycaemia even after glucose normalization is referred to as 'metabolic memory'. However, similar persistent effects of the metabolic consequences of a high fat diet (HFD) have not been described. EXPERIMENTAL APPROACH Rats were given a normal pellet diet (NPD) or a HFD for 3 months. The animals from the HFD group were then returned to the NPD to observe the long-term effects of insulin resistance. Endothelial dysfunction was assessed by carbachol-mediated vasorelaxation and eNOS phosphorylation. KEY RESULTS As expected, HFD consumption resulted in insulin resistance and endothelial dysfunction. Phosphorylation of eNOS at S1177 was decreased in HFD rats, compared with that in the NPD group. Rats on 3 months of HFD showed glucose intolerance and impaired insulin sensitivity and were then switched back to NPD (REV group) . Levels of cholesterol and triglyceride, and adiposity returned to normal in REV rats. However, endothelium-dependent vascular responses to carbachol which were impaired in HFD rats, continued to be impaired in REV rats. Similarly, decreased eNOS phosphorylation after HFD was not improved after 1 or 6 months of REV. CONCLUSIONS AND IMPLICATIONS Our data indicate that returning to NPD did not improve the insulin sensitivity or the endothelial dysfunction induced by HFD. Although some biochemical parameters responsible for insulin resistance and endothelial dysfunction were normalized, molecular and vascular abnormalities, involving NO, persisted for several months, highlighting the long-lasting effects of metabolic memory.
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Affiliation(s)
- Divya Sri Priyanka Tallapragada
- Laboratory of Epigenetics and Diseases, Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research, Mohali, Punjab, India
| | - Pinakin Arun Karpe
- Laboratory of Epigenetics and Diseases, Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research, Mohali, Punjab, India
| | - Kulbhushan Tikoo
- Laboratory of Epigenetics and Diseases, Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research, Mohali, Punjab, India
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Bertoldo MJ, Guibert E, Faure M, Ramé C, Foretz M, Viollet B, Dupont J, Froment P. Specific deletion of AMP-activated protein kinase (α1AMPK) in murine oocytes alters junctional protein expression and mitochondrial physiology. PLoS One 2015; 10:e0119680. [PMID: 25767884 PMCID: PMC4359026 DOI: 10.1371/journal.pone.0119680] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2014] [Accepted: 01/15/2015] [Indexed: 12/30/2022] Open
Abstract
Oogenesis and folliculogenesis are dynamic processes that are regulated by endocrine, paracrine and autocrine signals. These signals are exchanged between the oocyte and the somatic cells of the follicle. Here we analyzed the role of AMP-activated protein kinase (AMPK), an important regulator of cellular energy homeostasis, by using transgenic mice deficient in α1AMPK specifically in the oocyte. We found a decrease of 27% in litter size was observed in ZP3-α1AMPK-/- (ZP3-KO) female mice. Following in vitro fertilization, where conditions are stressful for the oocyte and embryo, ZP3-KO oocytes were 68% less likely to pass the 2-cell stage. In vivo and in cumulus-oocyte complexes, several proteins involved in junctional communication, such as connexin37 and N-cadherin were down-regulated in the absence of α1AMPK. While the two signalling pathways (PKA and MAPK) involved in the junctional communication between the cumulus/granulosa cells and the oocyte were stimulated in control oocytes, ZP3-KO oocytes exhibited only low phosphorylation of MAPK or CREB proteins. In addition, MII oocytes deficient in α1AMPK had a 3-fold lower ATP concentration, an increase in abnormal mitochondria, and a decrease in cytochrome C and PGC1α levels, suggesting perturbed energy production by mitochondria. The absence of α1AMPK also induced a reduction in histone deacetylase activity, which was associated with an increase in histone H3 acetylation (K9/K14 residues). Together, the results of the present study suggest that absence of AMPK, modifies oocyte quality through energy processes and oocyte/somatic cell communication. The limited effect observed in vivo could be partly due to a favourable follicle microenvironment where nutrients, growth factors, and adequate cell interaction were present. Whereas in a challenging environment such as that of in vitro culture following IVF, the phenotype is revealed.
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Affiliation(s)
- Michael J. Bertoldo
- UMR 7247 INRA CNRS Université de Tours Haras Nationaux Physiologie de la Reproduction et des Comportements, 37380, Nouzilly, France
- School of Women’s and Children’s Health, Discipline of Obstetrics and Gynaecology, University of New South Wales, Sydney, NSW, Australia
| | - Edith Guibert
- UMR 7247 INRA CNRS Université de Tours Haras Nationaux Physiologie de la Reproduction et des Comportements, 37380, Nouzilly, France
| | - Melanie Faure
- UMR 7247 INRA CNRS Université de Tours Haras Nationaux Physiologie de la Reproduction et des Comportements, 37380, Nouzilly, France
| | - Christelle Ramé
- UMR 7247 INRA CNRS Université de Tours Haras Nationaux Physiologie de la Reproduction et des Comportements, 37380, Nouzilly, France
| | - Marc Foretz
- INSERM, U1016, Institut Cochin, Paris, France
- CNRS, UMR8104, Paris, France
- Université Paris Descartes, Sorbonne Paris Cité, Paris, France
| | - Benoit Viollet
- INSERM, U1016, Institut Cochin, Paris, France
- CNRS, UMR8104, Paris, France
- Université Paris Descartes, Sorbonne Paris Cité, Paris, France
| | - Joëlle Dupont
- UMR 7247 INRA CNRS Université de Tours Haras Nationaux Physiologie de la Reproduction et des Comportements, 37380, Nouzilly, France
| | - Pascal Froment
- UMR 7247 INRA CNRS Université de Tours Haras Nationaux Physiologie de la Reproduction et des Comportements, 37380, Nouzilly, France
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