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Hanna M, Elnassag SS, Mohamed DH, Elbaset MA, Shaker O, Khowailed EA, Gouda SAA. Melatonin and mesenchymal stem cells co-administration alleviates chronic obstructive pulmonary disease via modulation of angiogenesis at the vascular-alveolar unit. Pflugers Arch 2024:10.1007/s00424-024-02968-3. [PMID: 38740599 DOI: 10.1007/s00424-024-02968-3] [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: 11/29/2023] [Revised: 03/31/2024] [Accepted: 04/25/2024] [Indexed: 05/16/2024]
Abstract
Chronic obstructive pulmonary disease (COPD) is considered a severe disease mitigating lung physiological functions with high mortality outcomes, insufficient therapy, and pathophysiology pathways which is still not fully understood. Mesenchymal stem cells (MSCs) derived from bone marrow play an important role in improving the function of organs suffering inflammation, oxidative stress, and immune reaction. It might also play a role in regenerative medicine, but that is still questionable. Additionally, Melatonin with its known antioxidative and anti-inflammatory impact is attracting attention nowadays as a useful treatment. We hypothesized that Melatonin may augment the effect of MSCs at the level of angiogenesis in COPD. In our study, the COPD model was established using cigarette smoking and lipopolysaccharide. The COPD rats were divided into four groups: COPD group, Melatonin-treated group, MSC-treated group, and combined treated group (Melatonin-MSCs). We found that COPD was accompanied by deterioration of pulmonary function tests in response to expiratory parameter affection more than inspiratory ones. This was associated with increased Hypoxia inducible factor-1α expression and vascular endothelial growth factor level. Consequently, there was increased CD31 expression indicating increased angiogenesis with massive enlargement of airspaces and thinning of alveolar septa with decreased mean radial alveolar count, in addition to, inflammatory cell infiltration and disruption of the bronchiolar epithelial wall with loss of cilia and blood vessel wall thickening. These findings were improved significantly when Melatonin and bone marrow-derived MSCs were used as a combined treatment proving the hypothesized target that Melatonin might augment MSCs aiming at vascular changes.
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Affiliation(s)
- Mira Hanna
- Department of Medical Physiology, Faculty of Medicine, Kasr Al-Ainy, Cairo University, El-Maniel 11451, Cairo, Egypt.
| | - Sabreen Sayed Elnassag
- Department of Medical Physiology, Faculty of Medicine, Kasr Al-Ainy, Cairo University, El-Maniel 11451, Cairo, Egypt
| | - Dina Hisham Mohamed
- Department of Histology, Faculty of Medicine, Cairo University, El-Maniel 11451, Cairo, Egypt
| | - Marawan Abd Elbaset
- Department of Pharmacology, Medical Research and Clinical Studies Institute, National Research Centre, Cairo, Egypt
| | - Olfat Shaker
- Department of Biochemistry, Faculty of Medicine, Kasr Al-Ainy, Cairo University, El-Maniel 11451, Cairo, Egypt
| | - Effat A Khowailed
- Department of Medical Physiology, Faculty of Medicine, Kasr Al-Ainy, Cairo University, El-Maniel 11451, Cairo, Egypt
| | - Sarah Ali Abdelhameed Gouda
- Department of Medical Physiology, Faculty of Medicine, Kasr Al-Ainy, Cairo University, El-Maniel 11451, Cairo, Egypt
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2
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Chiorescu RM, Lazar RD, Ruda A, Buda AP, Chiorescu S, Mocan M, Blendea D. Current Insights and Future Directions in the Treatment of Heart Failure with Preserved Ejection Fraction. Int J Mol Sci 2023; 25:440. [PMID: 38203612 PMCID: PMC10778923 DOI: 10.3390/ijms25010440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 12/21/2023] [Accepted: 12/26/2023] [Indexed: 01/12/2024] Open
Abstract
Heart failure is a clinical syndrome associated with poor quality of life, substantial healthcare resource utilization, and premature mortality, in large part related to high rates of hospitalizations. The clinical manifestations of heart failure are similar regardless of the ejection fraction. Unlike heart failure with reduced ejection fraction, there are few therapeutic options for treating heart failure with preserved ejection fraction. Molecular therapies that have shown reduced mortality and morbidity in heart failure with reduced ejection have not been proven to be effective for patients with heart failure and preserved ejection fraction. The study of pathophysiological processes involved in the production of heart failure with preserved ejection fraction is the basis for identifying new therapeutic means. In this narrative review, we intend to synthesize the existing therapeutic means, but also those under research (metabolic and microRNA therapy) for the treatment of heart failure with preserved ejection fraction.
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Affiliation(s)
- Roxana Mihaela Chiorescu
- Department of Internal Medicine, “Iuliu Hațieganu” University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania;
- Department of Internal Medicine, Emergency Clinical County Hospital, 400006 Cluj-Napoca, Romania
| | - Roxana-Daiana Lazar
- Nicolae Stăncioiu Heart Institute, 400001 Cluj-Napoca, Romania; (A.R.); (A.P.B.); (D.B.)
| | - Alexandru Ruda
- Nicolae Stăncioiu Heart Institute, 400001 Cluj-Napoca, Romania; (A.R.); (A.P.B.); (D.B.)
| | - Andreea Paula Buda
- Nicolae Stăncioiu Heart Institute, 400001 Cluj-Napoca, Romania; (A.R.); (A.P.B.); (D.B.)
| | - Stefan Chiorescu
- Department of Surgery, “Iuliu Hațieganu” University of Medicine and Pharmacy, 400139 Cluj-Napoca, Romania;
| | - Mihaela Mocan
- Department of Internal Medicine, “Iuliu Hațieganu” University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania;
- Department of Internal Medicine, Emergency Clinical County Hospital, 400006 Cluj-Napoca, Romania
| | - Dan Blendea
- Nicolae Stăncioiu Heart Institute, 400001 Cluj-Napoca, Romania; (A.R.); (A.P.B.); (D.B.)
- Department of Cardiology, “Iuliu Hațieganu” University of Medicine and Pharmacy, 400437 Cluj-Napoca, Romania
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Zhang Z, Li L, Shi H, Chen B, Li X, Zhang Y, Liu F, Wei W, Zhou Y, Liu K, Xia W, Gu X, Huang J, Tu S, Yin C, Shao A, Jiang L. Role of Circular RNAs in Atherosclerosis through Regulation of Inflammation, Cell Proliferation, Migration, and Apoptosis: Focus on Atherosclerotic Cerebrovascular Disease. MEDICINA (KAUNAS, LITHUANIA) 2023; 59:1461. [PMID: 37629751 PMCID: PMC10456328 DOI: 10.3390/medicina59081461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 07/29/2023] [Accepted: 08/09/2023] [Indexed: 08/27/2023]
Abstract
Atherosclerosis (AS) is a disease dangerous to human health and the main pathological cause of ischemic cardiovascular diseases. Although its pathogenesis is not fully understood, numerous basic and clinical studies have shown that AS is a chronic inflammatory disease existing in all stages of atherogenesis. It may be a common link or pathway in the pathogenesis of multiple atherogenic factors. Inflammation is associated with AS complications, such as plaque rupture and ischemic cerebral infarction. In addition to inflammation, apoptosis plays an important role in AS. Apoptosis is a type of programmed cell death, and different apoptotic cells have different or even opposite roles in the process of AS. Unlike linear RNA, circular RNA (circRNA) a covalently closed circular non-coding RNA, is stable and can sponge miRNA, which can affect the stages of AS by regulating downstream pathways. Ultimately, circRNAs play very important roles in AS by regulating inflammation, apoptosis, and some other mechanisms. The study of circular RNAs can provide new ideas for the prediction, prevention, and treatment of AS.
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Affiliation(s)
- Zheng Zhang
- The Fourth School of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou 310053, China; (Z.Z.); (H.S.); (B.C.); (X.L.); (Y.Z.); (X.G.)
| | - Lingfei Li
- Department of Neurology, Affiliated Hangzhou First People’s Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China; (L.L.); (F.L.); (W.W.); (Y.Z.); (K.L.); (W.X.)
| | - Huanqing Shi
- The Fourth School of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou 310053, China; (Z.Z.); (H.S.); (B.C.); (X.L.); (Y.Z.); (X.G.)
| | - Biao Chen
- The Fourth School of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou 310053, China; (Z.Z.); (H.S.); (B.C.); (X.L.); (Y.Z.); (X.G.)
| | - Xiaoqin Li
- The Fourth School of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou 310053, China; (Z.Z.); (H.S.); (B.C.); (X.L.); (Y.Z.); (X.G.)
| | - Yuyao Zhang
- The Fourth School of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou 310053, China; (Z.Z.); (H.S.); (B.C.); (X.L.); (Y.Z.); (X.G.)
| | - Fei Liu
- Department of Neurology, Affiliated Hangzhou First People’s Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China; (L.L.); (F.L.); (W.W.); (Y.Z.); (K.L.); (W.X.)
| | - Wan Wei
- Department of Neurology, Affiliated Hangzhou First People’s Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China; (L.L.); (F.L.); (W.W.); (Y.Z.); (K.L.); (W.X.)
| | - Yongji Zhou
- Department of Neurology, Affiliated Hangzhou First People’s Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China; (L.L.); (F.L.); (W.W.); (Y.Z.); (K.L.); (W.X.)
| | - Keqin Liu
- Department of Neurology, Affiliated Hangzhou First People’s Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China; (L.L.); (F.L.); (W.W.); (Y.Z.); (K.L.); (W.X.)
| | - Wenqing Xia
- Department of Neurology, Affiliated Hangzhou First People’s Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China; (L.L.); (F.L.); (W.W.); (Y.Z.); (K.L.); (W.X.)
| | - Xin Gu
- The Fourth School of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou 310053, China; (Z.Z.); (H.S.); (B.C.); (X.L.); (Y.Z.); (X.G.)
| | - Jinyu Huang
- Department of Cardiology, Affiliated Hangzhou First People’s Hospital, Zhejiang University School of Medicine, Hangzhou 310006, China;
| | - Sheng Tu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310006, China;
| | - Congguo Yin
- The Fourth School of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou 310053, China; (Z.Z.); (H.S.); (B.C.); (X.L.); (Y.Z.); (X.G.)
- Department of Neurology, Affiliated Hangzhou First People’s Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China; (L.L.); (F.L.); (W.W.); (Y.Z.); (K.L.); (W.X.)
| | - Anwen Shao
- Department of Neurosurgery, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310009, China
- Key Laboratory of Precise Treatment and Clinical Translational Research of Neurological Disease, Hangzhou 310009, China
| | - Lin Jiang
- The Fourth School of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou 310053, China; (Z.Z.); (H.S.); (B.C.); (X.L.); (Y.Z.); (X.G.)
- Department of Neurology, Affiliated Hangzhou First People’s Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China; (L.L.); (F.L.); (W.W.); (Y.Z.); (K.L.); (W.X.)
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4
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Li D, Pan JH, Huang XF, Liao YQ, Ling YJ, Luo JY. Effect of melatonin on oxidative stress indicators in animal models of fibrosis: A systematic review and meta-analysis. Free Radic Biol Med 2023; 195:158-177. [PMID: 36586451 DOI: 10.1016/j.freeradbiomed.2022.12.094] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2022] [Revised: 12/20/2022] [Accepted: 12/26/2022] [Indexed: 12/29/2022]
Abstract
BACKGROUND AND OBJECTIVE Imbalance of oxidative stress has been detected in a range of fibrotic diseases. Melatonin as an indoleamine hormone plays an important role in regulating the circadian rhythm of human, while in recent years, its antioxidant effect has also attracted increasing attention. This study aimed to perform a systematic review and meta-analysis to comprehensively evaluate the antioxidant effect of melatonin in animal models of fibrosis. METHODS The PubMed, Cochrane Library, EMBASE, Web of Science, China National Knowledge Infrastructure (CNKI), Wanfang database, China Science and Technology Journal Database (VIP), and SinoMed databases were searched from inception to March 1st, 2022 to retrieve eligible studies that evaluated the effect of melatonin supplementation on the levels of malondialdehyde (MDA), lipid peroxidation (LPO), nitric oxide (NO), superoxide dismutase (SOD), glutathione (GSH), glutathione peroxidase (GPx), and catalase (CAT) in animal models of fibrosis. RESULTS A total of 64 studies were included in this meta-analysis. The results showed that melatonin supplementation significantly reduced the levels of oxidative indicators including MDA (P < 0.00001), LPO (P < 0.00001) and NO (P < 0.0001), and elevated the levels of antioxidant indicators including GSH (P < 0.00001), GPx (P < 0.00001) and SOD (P < 0.00001) in fibrotic diseases. CONCLUSIONS Our research findings showed that melatonin supplementation could significantly reduce the levels of oxidative indicators including MDA, LPO and NO and elevate the levels of antioxidant indicators including GSH, GPx and SOD so as to correct oxidative stress in animal models of fibrosis. However, no significant changes were observed in CAT level. More clinical studies are needed to further confirm the beneficial role of melatonin in fibrotic diseases.
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Affiliation(s)
- Dan Li
- Department of Dermatology, The Second Affiliated Hospital of Guilin Medical University, 212 Ren-Min Road, Guilin, Guangxi, 541199, China
| | - Jun-Hua Pan
- Department of Dermatology, The Second Affiliated Hospital of Guilin Medical University, 212 Ren-Min Road, Guilin, Guangxi, 541199, China
| | - Xiao-Fang Huang
- Department of Dermatology, The Second Affiliated Hospital of Guilin Medical University, 212 Ren-Min Road, Guilin, Guangxi, 541199, China
| | - Yu-Qing Liao
- Department of Dermatology, The Second Affiliated Hospital of Guilin Medical University, 212 Ren-Min Road, Guilin, Guangxi, 541199, China
| | - Yong-Jin Ling
- Department of Dermatology, The Second Affiliated Hospital of Guilin Medical University, 212 Ren-Min Road, Guilin, Guangxi, 541199, China
| | - Jing-Ying Luo
- Department of Dermatology, The Second Affiliated Hospital of Guilin Medical University, 212 Ren-Min Road, Guilin, Guangxi, 541199, China.
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5
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Daiber A, Frenis K, Kuntic M, Li H, Wolf E, Kilgallen AB, Lecour S, Van Laake LW, Schulz R, Hahad O, Münzel T. Redox Regulatory Changes of Circadian Rhythm by the Environmental Risk Factors Traffic Noise and Air Pollution. Antioxid Redox Signal 2022; 37:679-703. [PMID: 35088601 PMCID: PMC9618394 DOI: 10.1089/ars.2021.0272] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Significance: Risk factors in the environment such as air pollution and traffic noise contribute to the development of chronic noncommunicable diseases. Recent Advances: Epidemiological data suggest that air pollution and traffic noise are associated with a higher risk for cardiovascular, metabolic, and mental disease, including hypertension, heart failure, myocardial infarction, diabetes, arrhythmia, stroke, neurodegeneration, depression, and anxiety disorders, mainly by activation of stress hormone signaling, inflammation, and oxidative stress. Critical Issues: We here provide an in-depth review on the impact of the environmental risk factors air pollution and traffic noise exposure (components of the external exposome) on cardiovascular health, with special emphasis on the role of environmentally triggered oxidative stress and dysregulation of the circadian clock. Also, a general introduction on the contribution of circadian rhythms to cardiovascular health and disease as well as a detailed mechanistic discussion of redox regulatory pathways of the circadian clock system is provided. Future Directions: Finally, we discuss the potential of preventive strategies or "chrono" therapy for cardioprotection. Antioxid. Redox Signal. 37, 679-703.
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Affiliation(s)
- Andreas Daiber
- Molecular Cardiology, Department of Cardiology 1, Medical Center of the Johannes Gutenberg University, Mainz, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Rhine-Main, Mainz, Germany
- Address correspondence to: Dr. Andreas Daiber, Labor für Molekulare Kardiologie, Abteilung für Kardiologie 1, Universitätsmedizin der Johannes Gutenberg-Universität Mainz, Geb. 605 – Raum 3.262, Langenbeckstr. 1, Mainz 55131, Germany
| | - Katie Frenis
- Molecular Cardiology, Department of Cardiology 1, Medical Center of the Johannes Gutenberg University, Mainz, Germany
| | - Marin Kuntic
- Molecular Cardiology, Department of Cardiology 1, Medical Center of the Johannes Gutenberg University, Mainz, Germany
| | - Huige Li
- Department of Pharmacology, Medical Center of the Johannes Gutenberg University, Mainz, Germany
| | - Eva Wolf
- Structural Chronobiology, Institute of Molecular Physiology, Johannes Gutenberg University, Mainz, Germany
- Institute of Molecular Biology, Mainz, Germany
| | - Aoife B. Kilgallen
- Division Heart and Lungs, Regenerative Medicine Centre, University Medical Centre Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Sandrine Lecour
- Hatter Institute for Cardiovascular Research in Africa, University of Cape Town, Cape Town, South Africa
| | - Linda W. Van Laake
- Division Heart and Lungs, Regenerative Medicine Centre, University Medical Centre Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Rainer Schulz
- Institute for Physiology, Justus-Liebig University Giessen, Giessen, Germany
| | - Omar Hahad
- Molecular Cardiology, Department of Cardiology 1, Medical Center of the Johannes Gutenberg University, Mainz, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Rhine-Main, Mainz, Germany
| | - Thomas Münzel
- Molecular Cardiology, Department of Cardiology 1, Medical Center of the Johannes Gutenberg University, Mainz, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Rhine-Main, Mainz, Germany
- Address correspondence to: Dr. Thomas Münzel, Labor für Molekulare Kardiologie, Abteilung für Kardiologie 1, Universitätsmedizin der Johannes Gutenberg-Universität Mainz, Geb. 605 – Raum 3.262, Langenbeckstr. 1, Mainz 55131, Germany
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Hosseinzadeh A, Bagherifard A, Koosha F, Amiri S, Karimi-Behnagh A, Reiter RJ, Mehrzadi S. Melatonin effect on platelets and coagulation: Implications for a prophylactic indication in COVID-19. Life Sci 2022; 307:120866. [PMID: 35944663 PMCID: PMC9356576 DOI: 10.1016/j.lfs.2022.120866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2022] [Revised: 07/26/2022] [Accepted: 08/03/2022] [Indexed: 11/04/2022]
Abstract
Severe COVID-19 is associated with the dynamic changes in coagulation parameters. Coagulopathy is considered as a major extra-pulmonary risk factor for severity and mortality of COVID-19; patients with elevated levels of coagulation biomarkers have poorer in-hospital outcomes. Oxidative stress, alterations in the activity of cytochrome P450 enzymes, development of the cytokine storm and inflammation, endothelial dysfunction, angiotensin-converting enzyme 2 (ACE2) enzyme malfunction and renin–angiotensin system (RAS) imbalance are among other mechanisms suggested to be involved in the coagulopathy induced by severe acute respiratory syndrome coronavirus (SARS-CoV-2). The activity and function of coagulation factors are reported to have a circadian component. Melatonin, a multipotential neurohormone secreted by the pineal gland exclusively at night, regulates the cytokine system and the coagulation cascade in infections such as those caused by coronaviruses. Herein, we review the mechanisms and beneficial effects of melatonin against coagulopathy induced by SARS-CoV-2 infection.
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Huang K, Luo X, Zhong Y, Deng L, Feng J. New insights into the role of melatonin in diabetic cardiomyopathy. Pharmacol Res Perspect 2022; 10:e00904. [PMID: 35005848 PMCID: PMC8929360 DOI: 10.1002/prp2.904] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Accepted: 11/25/2021] [Indexed: 12/13/2022] Open
Abstract
Diabetic cardiovascular complications and impaired cardiac function are considered to be the main causes of death in diabetic patients worldwide, especially patients with type 2 diabetes mellitus (T2DM). An increasing number of studies have shown that melatonin, as the main product secreted by the pineal gland, plays a vital role in the occurrence and development of diabetes. Melatonin improves myocardial cell metabolism, reduces vascular endothelial cell death, reverses microcirculation disorders, reduces myocardial fibrosis, reduces oxidative and endoplasmic reticulum stress, regulates cell autophagy and apoptosis, and improves mitochondrial function, all of which are the characteristics of diabetic cardiomyopathy (DCM). This review focuses on the role of melatonin in DCM. We also discuss new molecular findings that might facilitate a better understanding of the underlying mechanism. Finally, we propose potential new therapeutic strategies for patients with T2DM.
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Affiliation(s)
- Keming Huang
- Department of Cardiology, The Affiliated Hospital of Southwest Medical University, Luzhou, China.,Key Laboratory of Medical Electrophysiology, Ministry of Education & Medical Electrophysiological Key Laboratory of Sichuan Province, Institute of Cardiovascular Research, Southwest Medical University, Luzhou, China
| | - Xianling Luo
- Department of Cardiology, The Affiliated Hospital of Southwest Medical University, Luzhou, China.,Key Laboratory of Medical Electrophysiology, Ministry of Education & Medical Electrophysiological Key Laboratory of Sichuan Province, Institute of Cardiovascular Research, Southwest Medical University, Luzhou, China
| | - Yi Zhong
- Department of Cardiology, The Affiliated Hospital of Southwest Medical University, Luzhou, China.,Key Laboratory of Medical Electrophysiology, Ministry of Education & Medical Electrophysiological Key Laboratory of Sichuan Province, Institute of Cardiovascular Research, Southwest Medical University, Luzhou, China
| | - Li Deng
- Department of Cardiology, The Affiliated Hospital of Southwest Medical University, Luzhou, China.,Key Laboratory of Medical Electrophysiology, Ministry of Education & Medical Electrophysiological Key Laboratory of Sichuan Province, Institute of Cardiovascular Research, Southwest Medical University, Luzhou, China
| | - Jian Feng
- Department of Cardiology, The Affiliated Hospital of Southwest Medical University, Luzhou, China.,Key Laboratory of Medical Electrophysiology, Ministry of Education & Medical Electrophysiological Key Laboratory of Sichuan Province, Institute of Cardiovascular Research, Southwest Medical University, Luzhou, China
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Lauritzen ES, Kampmann U, Smedegaard SB, Støy J. Effects of daily administration of melatonin before bedtime on fasting insulin, glucose and insulin sensitivity in healthy adults and patients with metabolic diseases. A systematic review and meta-analysis. Clin Endocrinol (Oxf) 2021; 95:691-701. [PMID: 34370338 DOI: 10.1111/cen.14576] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Revised: 06/09/2021] [Accepted: 07/12/2021] [Indexed: 12/19/2022]
Abstract
BACKGROUND Melatonin is increasingly used as a pharmacological sleep aid but it is also emerging as a regulator of glucose homoeostasis. Yet, previous research has been ambiguous with reports of both positive and negative effects of melatonin on glucose metabolism. OBJECTIVES To assess the effect of daily treatment with melatonin on fasting glucose, insulin, insulin sensitivity and haemoglobin A1c (HbA1c) levels. DATA SOURCES MEDLINE, EMBASE, CENTRAL, clinicaltrials.gov and clinicaltrialsregister.eu were systematically searched. ELIGIBILITY CRITERIA, PARTICIPANTS AND INTERVENTIONS All randomized, placebo-controlled studies with melatonin treatment were assessed. We included studies with daily melatonin treatment (≥2 weeks) of healthy adults or patients with metabolic diseases. METHODS Hedges' g differences were calculated for the metabolic parameters of the included studies, heterogeneity was assessed with χ2 and I2 tests and meta-analyses were performed with the random-effects model. RESULTS Long-term treatment with melatonin did not change fasting glucose significantly compared with placebo (g: -0.07 [-0.22 to 0.08], n = 603) but it reduced fasting insulin levels slightly (g: -0.27 [-0.50 to -0.04], n = 278) and trended towards reduced insulin resistance (HOMA-IR) (g: -0.20 [-0.44 to 0.03], n = 278). HbA1c levels were largely unaffected by melatonin treatment compared with placebo (g: 0.14 [-0.19 to 0.46], n = 142). CONCLUSIONS With the available literature, melatonin seems to be a glucose-metabolic safe sleep aid in patients with metabolic diseases and in healthy adults. It may even have beneficial glucose-metabolic effects as fasting insulin levels were reduced in this meta-analysis, but the confidence intervals of the meta-analyses are wide, underscoring the need for further research within this field.
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Affiliation(s)
- Esben S Lauritzen
- The Steno Diabetes Center Aarhus, Aarhus University Hospital, Aarhus, Denmark
- Department of Clinical Medicine, Medical/Steno Research Laboratory, Aarhus University, Aarhus, Denmark
| | - Ulla Kampmann
- The Steno Diabetes Center Aarhus, Aarhus University Hospital, Aarhus, Denmark
| | - Stine B Smedegaard
- The Steno Diabetes Center Aarhus, Aarhus University Hospital, Aarhus, Denmark
| | - Julie Støy
- The Steno Diabetes Center Aarhus, Aarhus University Hospital, Aarhus, Denmark
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9
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Hsieh MC, Chen HH, Chou TY, Su TW, Lin CL, Kao CH. Association between systemic sclerosis and peripheral arterial disease: a nationwide observation retrospective claim records cohort study in Taiwan. BMJ Open 2021; 11:e048149. [PMID: 34588244 PMCID: PMC8483053 DOI: 10.1136/bmjopen-2020-048149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
Abstract
OBJECTIVES Recent studies have proposed associations between systemic sclerosis (SSc) and atherosclerosis and between SSc and cardiovascular disease. However, in Asia, no large-scale studies have focused on the association between peripheral arterial disease (PAD) and SSc. SETTING A nationwide observation retrospective cohort study. PARTICIPANTS The National Health Insurance Research Database was used for selecting patients diagnosed with SSc from 2000 to 2011. Patients diagnosed with PAD before the index date were excluded. PRIMARY AND SECONDARY OUTCOME MEASURES The SSc cohort comprised 1106 patients with SSc, and the non-SSc cohort comprised 4424 matched controls. The Cox proportional hazards regression model was used for analysing the adjusted risk of PAD between the case and control patients. RESULTS The SSc cohort exhibited a significantly higher risk (HR=2.15, 95% CI=1.47 to 3.14) of PAD than did the non-SSc cohort. Patients with heart failure exhibited the highest risk of PAD (adjusted HR=2.10, 95% CI=1.20 to 3.70). Moreover, even without any comorbidities, the SSc cohort exhibited a significantly higher risk (adjusted HR=4.17 fold, 95% CI=1.98 to 8.77) of PAD than did the non-SSc cohort. CONCLUSION SSc is associated with a significantly high risk of PAD. Further studies are required to reduce the PAD risk among patients with SSc.
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Affiliation(s)
| | - Hsin-Hung Chen
- Department of Internal Medicine, Asia University Hospital, Taichung, Taiwan
- School of Medicine, Chung Shan Medical University;Chung Sheng clinic, Nantou, Taiwan; Department of Law, Providence University, Taichung, Taiwan
| | - Tzu-Yi Chou
- Department of Physical Medicine and Rehabilitation, China Medical University Hospital, Taichung, Taiwan
| | - Ta-Wei Su
- Department of Surgery, Chang Gung University, Taoyuan, Taiwan
| | - Cheng-Li Lin
- Management Office for Health Data, China Medical University Hospital, Taichung, Taiwan
| | - Chia-Hung Kao
- Graduate Institute of Biomedical Sciences, College of Medicine, China Medical University;Department of Nuclear Medicine and PET Center, China Medical University Hospital;Department of Bioinformatics and Medical Engineering, Asia University;Center of Augmented Intelligence in Healthcare, China Medical University Hospital, Taichung, Taiwan
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Yu Y, Chen D, Zhao Y, Zhu J, Dong X. Melatonin ameliorates hepatic steatosis by inhibiting NLRP3 inflammasome in db/db mice. Int J Immunopathol Pharmacol 2021; 35:20587384211036819. [PMID: 34399601 PMCID: PMC8375339 DOI: 10.1177/20587384211036819] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Introduction: Type 2 diabetes mellitus (T2DM) is commonly accompanied by obesity and non-alcoholic fatty liver disease (NAFLD), yet the mechanism underlying diabetes-related NAFLD is not fully understood. It has been reported that melatonin can regulate glucose and lipid metabolism. This study aims to investigate the actions and mechanisms of melatonin toward the development of diabetes-related NAFLD. Methods: Melatonin (bid, 30 mg/kg/day, i.p.) was administrated to db/db mice for 8 weeks, while saline was administrated to db/m mice. The metabolic parameters of mice were measured using an automatic biochemistry analyzer. The oxidative stress indexes and mitochondrial membrane potential (MMP) were determined with kits. Pathological assessment in liver tissues was used to analyze the effects of melatonin on hepatic steatosis. The levels of IL-1β and IL-18 were detected with ELISA kits. The mRNA levels of NLRP3 inflammasome were detected using quantitative real-time PCR assay, and protein expressions were estimated using Western blotting assay. Immunofluorescence staining was used to evaluate the caspase-1 expression in the liver. Results: Melatonin treatment significantly reduced blood glucose, serum insulin, body weight, related liver weight, serum lipids, and hepatic enzymes in db/db mice. Melatonin markedly corrected the NAFLD phenotypes, including lipid accumulation, steatohepatitis, fibrosis, and oxidative stress levels. Melatonin significantly improved the MMP level and decreased the serum IL-1β and IL-18 concentrations. The mRNA levels of the NLRP3 inflammasome could also be remarkably reversed by melatonin in the liver tissues. The activation of the NLRP3 inflammasome was also suppressed, evidenced by the downregulated proteins of NLRP3, caspase-1, IL-1β, and IL-18. The enhanced fluorescence intensity of caspase-1 in the liver tissues was also obviously weakened by the melatonin treatment. Conclusion: Our study concluded that melatonin could safeguard against NAFLD by improving hepatic steatosis in db/db mice, and this action could be associated with the regulation of the NLRP3 inflammasome activation.
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Affiliation(s)
- Yongxiang Yu
- Department of Pharmacy, Affiliated Xiaoshan Hospital, Hangzhou Normal University, Hangzhou, China
| | - Dongru Chen
- Community Health Service Center of Suoqian Town, Hangzhou, China
| | - Yuhua Zhao
- Department of Pharmacy, Affiliated Xiaoshan Hospital, Hangzhou Normal University, Hangzhou, China
| | - Jianjun Zhu
- Department of Pharmacy, Affiliated Xiaoshan Hospital, Hangzhou Normal University, Hangzhou, China
| | - Xiaohui Dong
- Department of Pharmacy, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
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11
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Hoseini SG, Heshmat-Ghahdarijani K, Khosrawi S, Garakyaraghi M, Shafie D, Roohafza H, Mansourian M, Azizi E, Gheisari Y, Sadeghi M. Effect of melatonin supplementation on endothelial function in heart failure with reduced ejection fraction: A randomized, double-blinded clinical trial. Clin Cardiol 2021; 44:1263-1271. [PMID: 34184295 PMCID: PMC8427988 DOI: 10.1002/clc.23682] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Accepted: 06/20/2021] [Indexed: 12/20/2022] Open
Abstract
Background This study aimed to investigate the effect of melatonin supplementation on endothelial function in patients with heart failure with reduced ejection fraction (HFrEF). Methods This is an analysis of the MeHR trial, a randomized double‐blinded placebo‐controlled clinical trial with two parallel arms of 1:1. Oral 10 mg melatonin tablets or placebo was administered for 24 weeks. Deference in the percentage of flow‐mediated dilatation (FMD) after the intervention was the primary outcome. Results Ninety‐two patients were included in the study (age: 62.7±10.3 years, 87.0% male, ejection fraction (EF): 28.6±8.1). After adjustment for baseline FMD and age, a statistically significant difference in post‐treatment FMD in favor of the melatonin group was seen (estimated marginal means [95%CI], melatonin: 7.84% [6.69–8.98], placebo: 5.98% [4.84–7.12], p = .027). There was no significant difference in the mean of post‐treatment systolic/diastolic blood pressure, serum total antioxidant capacity, and serum malondialdehyde (MDA) between groups. Subgroup analysis showed significant improvement in FMD and MDA in the melatonin group in nondiabetic patients, while no difference was seen between study groups in diabetic patients. Conclusions Melatonin supplementation in HFrEF might improve endothelial function; however, this beneficial effect might not be seen in diabetic patients.
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Affiliation(s)
- Shervin Ghaffari Hoseini
- Isfahan Cardiovascular Research Center, Cardiovascular Research Institute, Isfahan University of Medical Sciences, Isfahan, Iran.,Department of Physical Medicine and Rehabilitation, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Kiyan Heshmat-Ghahdarijani
- Heart Failure Research Center, Cardiovascular Research Institute, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Saeid Khosrawi
- Department of Physical Medicine and Rehabilitation, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mohammad Garakyaraghi
- Heart Failure Research Center, Cardiovascular Research Institute, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Davood Shafie
- Heart Failure Research Center, Cardiovascular Research Institute, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Hamidreza Roohafza
- Cardiac Rehabilitation Research Center, Cardiovascular Research Institute, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Marjan Mansourian
- Isfahan Cardiovascular Research Center, Cardiovascular Research Institute, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Elham Azizi
- Cardiac Rehabilitation Research Center, Cardiovascular Research Institute, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Yousof Gheisari
- Regenerative Medicine Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Masoumeh Sadeghi
- Cardiac Rehabilitation Research Center, Cardiovascular Research Institute, Isfahan University of Medical Sciences, Isfahan, Iran
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12
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Ishihara R, Barros MPD, Silva CMD, Borges LDS, Hatanaka E, Lambertucci RH. Melatonin improves the antioxidant capacity in cardiac tissue of Wistar rats after exhaustive exercise. Free Radic Res 2021; 55:776-791. [PMID: 34100318 DOI: 10.1080/10715762.2021.1939024] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
We investigated the effects of melatonin on the onset and resolution of the oxidative stress in the cardiac muscle in melatonin-treated and nontreated rats subjected to an exhaustive exercise session. Forty male rats were divided into: melatonin-treated (20 mg/kg supplemented for 10 d) and control. On the 10th day, each group was subdivided according to euthanasia moments: control or melatonin-treated not exercised (C0h and M0h); immediately after the exercise (CIA and MIA); and 2 h after exercise (C2h and M2h). The heart of animals was removed and the levels of oxidative stress index (OSI) and the formation of thiobarbituric acid reactive substances (TBARS), protein carbonyl, and the activities of aconitase, catalase (CAT), glutathione peroxidase (GPx), and superoxide dismutase (SOD) were evaluated. Total antioxidant status (TAS), total oxidant status (TOS), and the protein expression of CAT, GPx, and SOD was also measured. Our data revealed significant differences on: (i) OSI (p=.029), CAT activity (p=.016), CAT content (p<.001), GPx content (p=.014), reduced glutathione levels (p<.001), and aconitase activity (p<.001) for interaction of melatonin; (ii) GPx activity (p=.005), reduced glutathione (p=.004), protein carbonyl (p=.035), and TBARS levels (p=.028) between groups, and (iii) TBARS levels (p=.016) for significance between moments. Although the exhaustive exercise protocol imposed mild oxidative stress on the cardiac tissue of rats, melatonin induced antioxidant responses that rebalanced the redox status of the cardiac tissue, especially after exhaustive exercise.
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Affiliation(s)
- Rafael Ishihara
- Department of Biosciences, Federal University of Sao Paulo, Santos, Brazil
| | - Marcelo Paes de Barros
- Institute of Physical Activity Sciences and Sports (ICAFE), Cruzeiro do Sul University, São Paulo, Brazil
| | | | - Leandro da Silva Borges
- Institute of Physical Activity Sciences and Sports (ICAFE), Cruzeiro do Sul University, São Paulo, Brazil
| | - Elaine Hatanaka
- Institute of Physical Activity Sciences and Sports (ICAFE), Cruzeiro do Sul University, São Paulo, Brazil
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13
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Wang X, Li T, Ma B, Zhao Z, Ni L, Zhang R, Niu S, Liu C. Melatonin attenuates restenosis after vascular injury in diabetic rats through activation of the Nrf2 signaling pathway. Biochem Biophys Res Commun 2021; 548:127-133. [PMID: 33640605 DOI: 10.1016/j.bbrc.2021.02.070] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2021] [Accepted: 02/16/2021] [Indexed: 01/07/2023]
Abstract
Diabetes is a major risk factor for the development of cardiovascular disease. Diabetic patients have a higher incidence of restenosis following endovascular therapy than non-diabetic patients. Melatonin is primarily synthesized and secreted by the pineal gland and plays an important protective anti-inflammatory and antioxidant role in a variety of cardiovascular diseases. However, no studies to date have evaluated the underlying effects and molecular mechanisms of melatonin on diabetes-related restenosis. Herein, we used an in vivo model of diabetes-related restenosis and an in vitro model of high glucose-cultured vascular smooth muscle cells to investigate the anti-restenosis effect and signaling mechanisms induced by melatonin treatment. The present study provides the first evidence that melatonin attenuates restenosis following vascular injury in diabetic rats. We further investigated the underlying molecular mechanisms both in vivo and in vitro. The data suggest that the Nrf2 signaling pathway is an important molecular target for melatonin-mediated inhibition of diabetes-related restenosis after vascular injury. These findings indicate that melatonin may represent a potential candidate for the prevention or treatment of vascular diseases and restenosis following endovascular therapy, especially in diabetic patients.
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Affiliation(s)
- Xuebin Wang
- Department of Vascular Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China; Department of Vascular Surgery, Beijing Friendship Hospital, Capital Medical University, Beijing, 100050, China
| | - Tianjia Li
- Department of Anesthesiology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Baitao Ma
- Department of Vascular Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Zhewei Zhao
- Department of Vascular Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Leng Ni
- Department of Vascular Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Rui Zhang
- Department of Vascular Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Shuai Niu
- Department of Vascular Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Changwei Liu
- Department of Vascular Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China.
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14
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Baburina Y, Lomovsky A, Krestinina O. Melatonin as a Potential Multitherapeutic Agent. J Pers Med 2021; 11:jpm11040274. [PMID: 33917344 PMCID: PMC8067360 DOI: 10.3390/jpm11040274] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Revised: 03/31/2021] [Accepted: 04/02/2021] [Indexed: 12/19/2022] Open
Abstract
Melatonin (N-acetyl-5-methoxytryptamine, MEL) is a hormone produced by the pineal gland that was discovered many years ago. The physiological roles of this hormone in the body are varied. The beneficial effects of MEL administration may be related to its influence on mitochondrial physiology. Mitochondrial dysfunction is considered an important factor in various physiological and pathological processes, such as the development of neurodegenerative and cardiovascular diseases, diabetes, various forms of liver disease, skeletal muscle disorders, and aging. Mitochondrial dysfunction induces an increase in the permeability of the inner membrane, which leads to the formation of a permeability transition pore (mPTP) in the mitochondria. The long-term administration of MEL has been shown to improve the functional state of mitochondria and inhibit the opening of the mPTP during aging. It is known that MEL is able to suppress the initiation, progression, angiogenesis, and metastasis of cancer as well as the sensitization of malignant cells to conventional chemotherapy and radiation therapy. This review summarizes the studies carried out by our group on the combined effect of MEL with chemotherapeutic agents (retinoic acid, cytarabine, and navitoclax) on the HL-60 cells used as a model of acute promyelocytic leukemia. Data on the effects of MEL on oxidative stress, aging, and heart failure are also reported.
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15
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Zhao Z, Wang X, Zhang R, Ma B, Niu S, Di X, Ni L, Liu C. Melatonin attenuates smoking-induced atherosclerosis by activating the Nrf2 pathway via NLRP3 inflammasomes in endothelial cells. Aging (Albany NY) 2021; 13:11363-11380. [PMID: 33839695 PMCID: PMC8109127 DOI: 10.18632/aging.202829] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2020] [Accepted: 01/07/2021] [Indexed: 12/30/2022]
Abstract
Substantial evidence suggests that the effects of smoking in atherosclerosis are associated with inflammation mediated by endothelial cells. However, the mechanisms and potential drug therapies for smoking-induced atherosclerosis remain to be clarified. Considering that melatonin exerts beneficial effects in cardiovascular diseases, we examined its effects on cigarette smoke-induced vascular injury. We found that cigarette smoke extract (CSE) treatment induced NLRP3-related pyroptosis in human aortic endothelial cells (HAECs). CSE also induced ROS generation and upregulated the Nrf2 pathway in HAECs. Furthermore, pretreatment of HAECs with Nrf2-specific siRNA and an Nrf2 activator revealed that Nrf2 can inhibit CSE-induced ROS/NLRP3 activation. Nrf2 also improved cell viability and the expression of VEGF and eNOS in CSE-treated HAECs. In balloon-induced carotid artery injury model rats exposed to cigarette smoke, melatonin treatment reduced intimal hyperplasia in the carotid artery. Mechanistic studies revealed that compared with the control group, Nrf2 activation was increased in the melatonin group, whereas ROS levels and the NLRP3 inflammasome pathway were inhibited. These results reveal that melatonin might effectively protect against smoking-induced vascular injury and atherosclerosis through the Nrf2/ROS/NLRP3 signaling pathway. Overall, these observations provide compelling evidence for the clinical use of melatonin to reduce smoking-related inflammatory vascular injury and atherosclerosis.
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Affiliation(s)
- Zhewei Zhao
- Department of Vascular Surgery, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| | - Xuebin Wang
- Department of Vascular Surgery, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| | - Rui Zhang
- Department of Vascular Surgery, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| | - Baitao Ma
- Department of Vascular Surgery, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| | - Shuai Niu
- Department of Vascular Surgery, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| | - Xiao Di
- Department of Vascular Surgery, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| | - Leng Ni
- Department of Vascular Surgery, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| | - Changwei Liu
- Department of Vascular Surgery, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
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16
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Potential Role of Melatonin as an Adjuvant for Atherosclerotic Carotid Arterial Stenosis. Molecules 2021; 26:molecules26040811. [PMID: 33557283 PMCID: PMC7914857 DOI: 10.3390/molecules26040811] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 01/27/2021] [Accepted: 02/02/2021] [Indexed: 12/23/2022] Open
Abstract
Carotid artery stenosis (CAS) is an atherosclerotic disease characterized by a narrowing of the artery lumen and a high risk of ischemic stroke. Risk factors of atherosclerosis, including smoking, hypertension, hyperglycemia, hyperlipidemia, aging, and disrupted circadian rhythm, may potentiate atherosclerosis in the carotid artery and further reduce the arterial lumen. Ischemic stroke due to severe CAS and cerebral ischemic/reperfusion (I/R) injury after the revascularization of CAS also adversely affect clinical outcomes. Melatonin is a pluripotent agent with potent anti-inflammatory, anti-oxidative, and neuroprotective properties. Although there is a shortage of direct clinical evidence demonstrating the benefits of melatonin in CAS patients, previous studies have shown that melatonin may be beneficial for patients with CAS in terms of reducing endothelial damage, stabilizing arterial plaque, mitigating the harm from CAS-related ischemic stroke and cerebral I/R injury, and alleviating the adverse effects of the related risk factors. Additional pre-clinical and clinical are required to confirm this speculation.
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17
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Ozkalayci F, Kocabas U, Altun BU, Pandi-Perumal S, Altun A. Relationship Between Melatonin and Cardiovascular Disease. Cureus 2021; 13:e12935. [PMID: 33654615 PMCID: PMC7914336 DOI: 10.7759/cureus.12935] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Coronary artery disease (CAD) is one of the leading causes of morbidity and mortality worldwide. The coronary atherosclerotic process involves different pathological mechanisms; inflammation is one of the major triggers for the development of atherosclerotic plaque. Although several studies showed the favorable effects of melatonin on the cardiovascular system (CVS), melatonin seems not to take its rightful place in today's clinical practice. This review aims to point out the role of melatonin on cardiovascular disease (CVD) and its' risk factors. All data were obtained via PubMed, Wikipedia, and Google.
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Affiliation(s)
| | - Umut Kocabas
- Cardiology, Baskent University Izmir Hospital, Izmir, TUR
| | | | | | - Armagan Altun
- Cardiology, Baskent University İstanbul Hospital, Istanbul, TUR
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18
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Marhuenda J, Villaño D, Arcusa R, Zafrilla P. Melatonin in Wine and Beer: Beneficial Effects. Molecules 2021; 26:molecules26020343. [PMID: 33440795 PMCID: PMC7827953 DOI: 10.3390/molecules26020343] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Revised: 01/04/2021] [Accepted: 01/05/2021] [Indexed: 12/15/2022] Open
Abstract
Melatonin is a hormone secreted in the pineal gland with several functions, especially regulation of circadian sleep cycle and the biological processes related to it. This review evaluates the bioavailability of melatonin and resulting metabolites, the presence of melatonin in wine and beer and factors that influence it, and finally the different benefits related to treatment with melatonin. When administered orally, melatonin is mainly absorbed in the rectum and the ileum; it has a half-life of about 0.45–1 h and is extensively inactivated in the liver by phase 2 enzymes. Melatonin (MEL) concentration varies from picograms to ng/mL in fermented beverages such as wine and beer, depending on the fermentation process. These low quantities, within a dietary intake, are enough to reach significant plasma concentrations of melatonin, and are thus able to exert beneficial effects. Melatonin has demonstrated antioxidant, anticarcinogenic, immunomodulatory and neuroprotective actions. These benefits are related to its free radical scavenging properties as well and the direct interaction with melatonin receptors, which are involved in complex intracellular signaling pathways, including inhibition of angiogenesis and cell proliferation, among others. In the present review, the current evidence on the effects of melatonin on different pathophysiological conditions is also discussed.
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19
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Ma B, Chen Y, Wang X, Zhang R, Niu S, Ni L, Di X, Han Q, Liu C. Cigarette smoke exposure impairs lipid metabolism by decreasing low-density lipoprotein receptor expression in hepatocytes. Lipids Health Dis 2020; 19:88. [PMID: 32384892 PMCID: PMC7210682 DOI: 10.1186/s12944-020-01276-w] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Accepted: 05/01/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Cigarette smoke (CS) exposure impairs serum lipid profiles and the function of vascular endothelial cells, which accelerates the atherosclerosis. However, the precise mechanism and effect on the expression of low-density lipoprotein receptor (LDLR) in the liver by CS exposure is still unclear. METHODS In this study, adult male C57BL/6 J mice were divided into three groups, with one group being exposed to CS for 6 weeks. HepG2 cells were treated with CS extract at concentrations of 1, 2.5, 5, and 10%. RESULTS The serum levels of total cholesterol (TC), triglycerides (TGs), and low-density lipoprotein cholesterol (LDL-C) for the CS-exposure group were significantly higher than those in the control group (P < 0.05). Moreover, CS exposure decreased the LDLR expression in the hepatocytes and promoted inflammation in the blood vessel walls. Melatonin was intraperitoneally injected at 10 mg/kg/d for 6 weeks alongside CS exposure, and this significantly decreased the levels of TC, TGs, and LDL-C and decreased the expression of intercellular adhesion molecule-1 and the infiltration of cluster determinant 68-cells. In vitro, CS extract prepared by bubbling CS through phosphate-buffered saline decreased the LDLR expression in HepG2 cells in a time- and concentration-dependent manner, and this effect was prevented by pretreatment with 100 μM melatonin. CONCLUSIONS In conclusion, CS exposure impaired lipid metabolism and decreased LDLR expression in hepatocytes, and these effects could be prevented by melatonin supplementation. These findings implied that melatonin has the potential therapeutic applicability in the prevention of lipid metabolic disorder in smokers.
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MESH Headings
- Animals
- Antigens, CD/genetics
- Antigens, CD/metabolism
- Antigens, Differentiation, Myelomonocytic/genetics
- Antigens, Differentiation, Myelomonocytic/metabolism
- Antioxidants/pharmacology
- Cholesterol, HDL/blood
- Cholesterol, LDL/blood
- Cigarette Smoking/adverse effects
- Complex Mixtures/pharmacology
- Dyslipidemias/etiology
- Dyslipidemias/genetics
- Dyslipidemias/metabolism
- Dyslipidemias/prevention & control
- Gene Expression Regulation
- Hep G2 Cells
- Hepatocytes/drug effects
- Hepatocytes/metabolism
- Hepatocytes/pathology
- Humans
- Hypolipidemic Agents/pharmacology
- Intercellular Adhesion Molecule-1/genetics
- Intercellular Adhesion Molecule-1/metabolism
- Lipid Metabolism/drug effects
- Lipid Metabolism/genetics
- Liver/drug effects
- Liver/metabolism
- Liver/pathology
- Male
- Melatonin/pharmacology
- Mice
- Mice, Inbred C57BL
- Receptors, LDL/genetics
- Receptors, LDL/metabolism
- Triglycerides/blood
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Affiliation(s)
- Baitao Ma
- Department of Vascular Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Yunfei Chen
- Medical Science Research Center, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Xuebin Wang
- Department of Vascular Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Rui Zhang
- Department of Vascular Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Shuai Niu
- Department of Vascular Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Leng Ni
- Department of Vascular Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Xiao Di
- Department of Vascular Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Qin Han
- Medical Science Research Center, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Changwei Liu
- Department of Vascular Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China.
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Hu ZP, Fang XL, Sheng B, Guo Y, Yu YQ. Melatonin inhibits macrophage infiltration and promotes plaque stabilization by upregulating anti-inflammatory HGF/c-Met system in the atherosclerotic rabbit: USPIO-enhanced MRI assessment. Vascul Pharmacol 2020; 127:106659. [DOI: 10.1016/j.vph.2020.106659] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2019] [Revised: 02/06/2020] [Accepted: 02/14/2020] [Indexed: 01/08/2023]
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Effects of melatonin on cardiovascular risk factors and metabolic syndrome: a comprehensive review. Naunyn Schmiedebergs Arch Pharmacol 2020; 393:521-536. [DOI: 10.1007/s00210-020-01822-4] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Accepted: 01/10/2020] [Indexed: 12/13/2022]
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22
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He L, Cui X, Xia Q, Li F, Mo J, Gong J, Zhang Y, Zhang J(J. Effects of personal air pollutant exposure on oxidative stress: Potential confounding by natural variation in melatonin levels. Int J Hyg Environ Health 2020; 223:116-123. [DOI: 10.1016/j.ijheh.2019.09.012] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2019] [Revised: 09/25/2019] [Accepted: 09/27/2019] [Indexed: 12/24/2022]
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Wang X, Bian Y, Zhang R, Liu X, Ni L, Ma B, Zeng R, Zhao Z, Song X, Liu C. Melatonin alleviates cigarette smoke-induced endothelial cell pyroptosis through inhibiting ROS/NLRP3 axis. Biochem Biophys Res Commun 2019; 519:402-408. [DOI: 10.1016/j.bbrc.2019.09.005] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Accepted: 09/04/2019] [Indexed: 01/29/2023]
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Zahid JA, Isbrand A, Kleif J, Schou-Pedersen AMV, Lykkesfeldt J, Madsen MT, Gögenur I. The effect of melatonin on endothelial dysfunction in patients after acute coronary syndrome: The MEFACS randomized clinical trial. J Pineal Res 2019; 67:e12600. [PMID: 31355944 DOI: 10.1111/jpi.12600] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Revised: 07/13/2019] [Accepted: 07/21/2019] [Indexed: 12/23/2022]
Abstract
Endothelial dysfunction (ED) precedes acute coronary syndrome. Oxidative stress results in ED but is reversible. Melatonin is aside from being a circadian hormone, also an antioxidant. The aim of this study was to investigate whether 25 mg melatonin administered for twelve weeks following acute coronary syndrome (ACS) could improve ED. In this placebo-controlled randomized trial, ED was measured as reactive hyperemia index (RHI) at baseline, day 14, and day 84. The effect was assessed using a generalized estimating equation adjusted for the baseline RHI. As secondary outcome, the concentrations of three biomarkers were measured: l-arginine, asymmetric dimethylarginine, and uric acid. Thirty-one patients were included in the study. The intention-to-treat analysis of the primary outcome had 26 patients due to missing data. The estimated marginal mean difference in RHI at day 14 and day 84 between the groups was 0.15 (95% CI: 0.29-0.01, P = .039) in favor of the placebo group. No significant differences in the biomarker concentrations were found. Melatonin treatment after ACS did not improve but may have aggravated ED. The significant difference between groups was in favor of placebo, but this might be due to the effect of missing data or uneven distribution of comorbidities.
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Affiliation(s)
- Jawad Ahmad Zahid
- Department of Surgery, Centre for Surgical Science, Zealand University Hospital, Køge, Denmark
| | - Anders Isbrand
- Department of Clinical Physiology and Nuclear Medicine, Herlev Hospital, Herlev, Denmark
| | - Jakob Kleif
- Department of Surgery, Nordsjaellands Hospital, Hillerød, Denmark
| | | | - Jens Lykkesfeldt
- Faculty of Health & Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Michael Tvilling Madsen
- Department of Surgery, Centre for Surgical Science, Zealand University Hospital, Køge, Denmark
| | - Ismail Gögenur
- Department of Surgery, Centre for Surgical Science, Zealand University Hospital, Køge, Denmark
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Chen Q, Lv J, Yang W, Xu B, Wang Z, Yu Z, Wu J, Yang Y, Han Y. Targeted inhibition of STAT3 as a potential treatment strategy for atherosclerosis. Theranostics 2019; 9:6424-6442. [PMID: 31588227 PMCID: PMC6771242 DOI: 10.7150/thno.35528] [Citation(s) in RCA: 86] [Impact Index Per Article: 17.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2019] [Accepted: 07/10/2019] [Indexed: 02/06/2023] Open
Abstract
Atherosclerosis is the main pathological basis of ischemic cardiovascular and cerebrovascular diseases and has attracted more attention in recent years. Multiple studies have demonstrated that the signal transducer and activator of transcription 3 (STAT3) plays essential roles in the process of atherosclerosis. Moreover, aberrant STAT3 activation has been shown to contribute to the occurrence and development of atherosclerosis. Therefore, the study of STAT3 inhibitors has gradually become a focal research topic. In this review, we describe the crucial roles of STAT3 in endothelial cell dysfunction, macrophage polarization, inflammation, and immunity during atherosclerosis. STAT3 in mitochondria is mentioned as well. Then, we present a summary and classification of STAT3 inhibitors, which could offer potential treatment strategies for atherosclerosis. Furthermore, we enumerate some of the problems that have interfered with the development of mature therapies utilizing STAT3 inhibitors to treat atherosclerosis. Finally, we propose ideas that may help to solve these problems to some extent. Collectively, this review may be useful for developing future STAT3 inhibitor therapies for atherosclerosis.
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Loloei S, Sepidarkish M, Heydarian A, Tahvilian N, Khazdouz M, Heshmati J, Pouraram H. The effect of melatonin supplementation on lipid profile and anthropometric indices: A systematic review and meta-analysis of clinical trials. Diabetes Metab Syndr 2019; 13:1901-1910. [PMID: 31235113 DOI: 10.1016/j.dsx.2019.04.043] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Accepted: 04/22/2019] [Indexed: 11/27/2022]
Abstract
BACKGROUND Epidemiological evidence suggests that melatonin has some effects on the serum lipid. However, these results are controversial. The aim of this systematic review and meta-analysis is to examine the effect of melatonin supplement on dyslipidemia and anthropometric indices. METHODS We searched electronic databases including Medline, Embase, Scopus, Web of Science and Cochrane Library up to Des 2018 without any language restriction. To compare the effects of melatonin with placebo, differences in standardized means difference (SMD) with 95% confidence intervals (95% CI) were pooled using random effects model. RESULTS Twelve trials including 641 participants included in meta-analysis finally. The dose of melatonin was reported at 0.8-30 mg. Comparing with the control group, melatonin may improve low density lipoprotein cholesterol (LDL-C) (-0.31 mmol/L, 95% CI (-0.61, 0.01), P = 0.049, I2 = 42%) and triglyceride (TG) level (SMD = -0.45 mmol/L; 95% CI, -0.77, -0.13, P = 0.006, I2 = 47%). No significant effect of melatonin on high density lipoprotein cholesterol (HDL-C) and anthropometric indices was found. CONCLUSIONS The results of our systematic review and Meta-analyzes showed that supplementation of melatonin could be effective in improving lipid parameters and should be considered in the prevention of cardiovascular disease, although the effect of this supplement on anthropometric indices needs further investigation.
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Affiliation(s)
- Saba Loloei
- Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahdi Sepidarkish
- Department of Biostatistics and Epidemiology, Babol University of Medical Sciences, Babol, Iran
| | - Azadeh Heydarian
- Department of Nutrition, School of Public Health, Iran University of Medical Sciences, Iran
| | - Negin Tahvilian
- Department of Nutrition, School of Public Health, Iran University of Medical Sciences, Iran
| | - Maryam Khazdouz
- Department of Nutrition, School of Public Health, Iran University of Medical Sciences, Iran
| | - Javad Heshmati
- Department of Nutritional Science, School of Nutritional Science and Food Technology, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Hamed Pouraram
- Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran.
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Pérez-González A, Castañeda-Arriaga R, Álvarez-Idaboy JR, Reiter RJ, Galano A. Melatonin and its metabolites as chemical agents capable of directly repairing oxidized DNA. J Pineal Res 2019; 66:e12539. [PMID: 30417425 DOI: 10.1111/jpi.12539] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Revised: 10/26/2018] [Accepted: 11/05/2018] [Indexed: 12/24/2022]
Abstract
Oxidative stress mediates chemical damage to DNA yielding a wide variety of products. In this work, the potential capability of melatonin and several of its metabolites to repair directly (chemically) oxidative lesions in DNA was explored. It was found that all the investigated molecules are capable of repairing guanine-centered radical cations by electron transfer at very high rates, that is, diffusion-limited. They are also capable of repairing C-centered radicals in the sugar moiety of 2'-deoxyguanosine (2dG) by hydrogen atom transfer. Although this was identified as a rather slow process, with rate constants ranging from 1.75 to 5.32 × 102 M-1 s-1 , it is expected to be fast enough to prevent propagation of the DNA damage. Melatonin metabolites 6-hydroxymelatonin (6OHM) and 4-hydroxymelatonin (4OHM) are also predicted to repair OH adducts in the imidazole ring. In particular, the rate constants corresponding to the repair of 8-OH-G adducts were found to be in the order of 104 M-1 s-1 and are assisted by a water molecule. The results presented here strongly suggest that the role of melatonin in preventing DNA damage might be mediated by its capability, combined with that of its metabolites, to directly repair oxidized sites in DNA through different chemical routes.
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Affiliation(s)
- Adriana Pérez-González
- CONACYT, Universidad Autónoma Metropolitana - Iztapalapa, Iztapalapa, México City, México
| | - Romina Castañeda-Arriaga
- Departamento de Química, Universidad Autónoma Metropolitana-Iztapalapa, Iztapalapa, México City, México
| | - Juan Raúl Álvarez-Idaboy
- Departamento de Física y Química Teórica, Facultad de Química, Universidad Nacional Autónoma de México, México City, México
| | - Russel J Reiter
- Department of Cellular and Structural Biology, UT Health Science Center, San Antonio, Texas
| | - Annia Galano
- Departamento de Química, Universidad Autónoma Metropolitana-Iztapalapa, Iztapalapa, México City, México
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Hussain T, Alamery S, Dikshit G, Mohammed AA, Naushad SM, Alrokayan S. Incense smoke exposure augments systemic oxidative stress, inflammation and endothelial dysfunction in male albino rats. Toxicol Mech Methods 2019; 29:211-218. [DOI: 10.1080/15376516.2018.1544681] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Tajamul Hussain
- Center of Excellence in Biotechnology Research, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Salman Alamery
- Center of Excellence in Biotechnology Research, College of Science, King Saud University, Riyadh, Saudi Arabia
- Biochemistry Department, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Gambhir Dikshit
- Center of Excellence in Biotechnology Research, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Arif A. Mohammed
- Center of Excellence in Biotechnology Research, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Shaik M. Naushad
- Biochemical Genetics, Sandor Life Sciences Pvt. Ltd, Hyderabad, India
| | - Salman Alrokayan
- Biochemistry Department, College of Science, King Saud University, Riyadh, Saudi Arabia
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Marshall SA, Cox AG, Parry LJ, Wallace EM. Targeting the vascular dysfunction: Potential treatments for preeclampsia. Microcirculation 2018; 26:e12522. [PMID: 30556222 DOI: 10.1111/micc.12522] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Revised: 11/22/2018] [Accepted: 12/10/2018] [Indexed: 12/18/2022]
Abstract
Preeclampsia is a pregnancy-specific disorder, primarily characterized by new-onset hypertension in combination with a variety of other maternal or fetal signs. The pathophysiological mechanisms underlying the disease are still not entirely clear. Systemic maternal vascular dysfunction underlies the clinical features of preeclampsia. It is a result of oxidative stress and the actions of excessive anti-angiogenic factors, such as soluble fms-like tyrosine kinase, soluble endoglin, and activin A, released by a dysfunctional placenta. The vascular dysfunction then leads to impaired regulation and secretion of relaxation factors and an increase in sensitivity/production of constrictors. This results in a more constricted vasculature rather than the relaxed vasodilated state associated with normal pregnancy. Currently, the only effective "treatment" for preeclampsia is delivery of the placenta and therefore the baby. Often, this means a preterm delivery to save the life of the mother, with all the attendant risks and burdens associated with fetal prematurity. To lessen this burden, there is a pressing need for more effective treatments that target the maternal vascular dysfunction that underlies the hypertension. This review details the vascular effects of key drugs undergoing clinical assessment as potential treatments for women with preeclampsia.
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Affiliation(s)
- Sarah A Marshall
- Departments of Obstetrics and Gynaecology and Medicine, School of Clinical Sciences, The Ritchie Centre, Monash University, Clayton, Victoria, Australia
| | - Annie G Cox
- Departments of Obstetrics and Gynaecology and Medicine, School of Clinical Sciences, The Ritchie Centre, Monash University, Clayton, Victoria, Australia
| | - Laura J Parry
- School of BioSciences, The University of Melbourne, Parkville, Victoria, Australia
| | - Euan M Wallace
- Departments of Obstetrics and Gynaecology and Medicine, School of Clinical Sciences, The Ritchie Centre, Monash University, Clayton, Victoria, Australia
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Zhao Z, Lu C, Li T, Wang W, Ye W, Zeng R, Ni L, Lai Z, Wang X, Liu C. The protective effect of melatonin on brain ischemia and reperfusion in rats and humans: In vivo assessment and a randomized controlled trial. J Pineal Res 2018; 65:e12521. [PMID: 30098076 DOI: 10.1111/jpi.12521] [Citation(s) in RCA: 58] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Revised: 07/09/2018] [Accepted: 07/31/2018] [Indexed: 12/25/2022]
Abstract
Carotid endarterectomy (CEA) is the treatment of choice for carotid stenosis. Some patients develop ischemia and reperfusion (I/R) injury after CEA. This study was designed to investigate the neuroprotective effects of melatonin on I/R injury in both rats and humans. To this end, 36 male rats were evaluated, and a double-blind randomized controlled trial (RCT) including 60 patients was performed. A rat model of middle cerebral artery occlusion was used to mimic cerebral I/R. After 2 hour of occlusion and 24 hour of reperfusion, blood samples and brain tissues were harvested for further assessments. Compared with the vehicle treatment, melatonin decreased the expression of nuclear factor κ light-chain-enhancer of activated B cells (NF-κB) and S100 calcium-binding protein β (S100β) (P < 0.05) and markedly increased the expression of nuclear erythroid 2-related factor 2 (Nrf2), superoxide dismutase (SOD), catalase (CAT), and glutathione peroxidase (GPx) (P < 0.05). The participants in the RCT took 6 mg/d melatonin orally from 3 days before surgery to 3 days after surgery. Blood samples were drawn at the following times: baseline; pre-anesthesia; carotid reconstruction completion; and 6, 24, and 72 hour after CEA. Compared with the oral placebo treatment, melatonin decreased the expression of NF-κB, tumor necrosis factor-α, interleukin-6 (IL-6), and S100β (P < 0.05) and increased the expression of Nrf2, SOD, CAT, and GPx (P < 0.05) in patients after CEA. Our findings suggested that melatonin could ameliorate brain I/R injury after CEA and that this outcome was essentially due to the antioxidant and anti-inflammatory effects of melatonin.
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Affiliation(s)
- Zhewei Zhao
- Department of Vascular Surgery, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| | - Chengran Lu
- Department of Vascular Surgery, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| | - Tianjia Li
- Department of Vascular Surgery, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| | - Wenda Wang
- Department of Vascular Surgery, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| | - Wei Ye
- Department of Vascular Surgery, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| | - Rong Zeng
- Department of Vascular Surgery, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| | - Leng Ni
- Department of Vascular Surgery, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| | - Zhichao Lai
- Department of Vascular Surgery, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| | - Xuebin Wang
- Department of Vascular Surgery, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| | - Changwei Liu
- Department of Vascular Surgery, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
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Zhao S, Wang Y, Zhang X, Zheng L, Zhu B, Yao S, Yang L, Du J. Melatonin Protects Against Hypoxia/Reoxygenation-Induced Dysfunction of Human Umbilical Vein Endothelial Cells Through Inhibiting Reactive Oxygen Species Generation. ACTA CARDIOLOGICA SINICA 2018; 34:424-431. [PMID: 30271093 PMCID: PMC6160513 DOI: 10.6515/acs.201809_34(5).20180708a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 06/23/2017] [Accepted: 07/08/2018] [Indexed: 12/13/2022]
Abstract
BACKGROUND Hypoxia/reoxygenation (H/R) in human umbilical vein endothelial cells (HUVECs) induces oxidative stress and eventually leads to vascular injury. OBJECTIVE The aim of this study was to examine the effect of melatonin on HUVECs injured by H/R and explore the underlying mechanisms. MATERIALS AND METHODS A model of HUVECs under hypoxia/reoxygenation was established. Cell migration and adhesive ability was measured by wound healing and adhesion assays. Cell proliferation was measured by EdU assay. Production of reactive oxygen species (ROS) was evaluated by CM-H2DCFDA staining. Actin cytoskeleton rearrangement was examined by immunofluorescence. Western blotting analysis were used to analyze P38 and HSP27 phosphorylation levels. RESULTS H/R inhibited HUVEC proliferation, cell migratory and adhesive capacities, whereas melatonin (1~100 μM) inhibited these effects in a dose-dependent manner. Melatonin alone did not affect HUVEC viability, however, it inhibited the increase in ROS production and cytoskeleton disruption elicited by H/R, and it dose-dependently prevented H/R-induced upregulation of P38 and HSP27 phosphorylation. In addition, the ROS scavenger N-acetyl-L-cysteine markedly inhibited increased phosphorylation levels of P38 and HSP27 under H/R. CONCLUSIONS Melatonin may have a potential clinical effect in trials of H/R-induced vascular injury through its antioxidant property.
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Affiliation(s)
- Shuo Zhao
- Department of Physiology, Nanjing Medical University, Nanjing, Jiangsu, 211166
| | - Yueyuan Wang
- Department of Physiology, Nanjing Medical University, Nanjing, Jiangsu, 211166
| | | | | | | | | | - Ling Yang
- Department of Cardiology, The Third Affiliated Hospital of Soochow University, Changzhou, Jiangsu, 213003, China
| | - Jun Du
- Department of Physiology, Nanjing Medical University, Nanjing, Jiangsu, 211166
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Ito H, Nishio Y, Hara T, Sugihara H, Tanaka T, Li XK. Oral administration of 5-aminolevulinic acid induces heme oxygenase-1 expression in peripheral blood mononuclear cells of healthy human subjects in combination with ferrous iron. Eur J Pharmacol 2018; 833:25-33. [DOI: 10.1016/j.ejphar.2018.05.009] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Revised: 05/07/2018] [Accepted: 05/08/2018] [Indexed: 12/23/2022]
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Li P, Bai Y, Zhao X, Tian T, Tang L, Ru J, An Y, Wang J. NR4A1 contributes to high-fat associated endothelial dysfunction by promoting CaMKII-Parkin-mitophagy pathways. Cell Stress Chaperones 2018; 23:749-761. [PMID: 29470798 PMCID: PMC6045535 DOI: 10.1007/s12192-018-0886-1] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2017] [Revised: 02/05/2018] [Accepted: 02/09/2018] [Indexed: 12/11/2022] Open
Abstract
Parkin-related mitophagy is vital for endothelial cell viability and the development of atherosclerosis, although the upstream regulatory factor underlying Parkin-mediated mitophagy in endothelial apoptosis and atherosclerosis progression remains unknown. In the present study, we demonstrated that nuclear receptor subfamily 4 group A member 1 (NR4A1) is actually expressed in aortic endothelial cells (AECs) under oxidized low-density lipoprotein (ox-LDL) treatment in vitro or isolated from high-fat treated mice in vivo. Higher NR4A1 levels were associated with AEC apoptosis, mitochondrial dysfunction, and energy disorder. At the molecular level, ox-LDL stimulation increased NR4A1 expression, which evoked Parkin-mediated mitophagy. Excessive mitophagy overtly consumed mitochondrial mass, leading to an energy shortage and mitochondrial dysfunction. However, loss of NR4A1 protected AECs against ox-LDL induced apoptosis by inhibiting excessive mitophagy. Furthermore, we also identified that NR4A1 regulated Parkin activation via post-transcriptional modification by Ca2+/calmodulin-dependent protein kinase II (CaMKII). Activated CaMKII via NR4A1 induced the phosphorylated activation of Parkin. In summary, our data support the role of NR4A1/CaMKII/Parkin/mitophagy in AEC apoptosis and atherosclerosis formation and provide new insights into treating atherosclerosis with respect to endothelial viability, mitophagy, and NR4A1.
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Affiliation(s)
- Pei Li
- Department of Geriatrics, Beijing Chaoyang Hospital Affiliated to Capital Medical University, Beijing, 100043, China
| | - Yuzhi Bai
- Department of Geriatrics, Beijing Chaoyang Hospital Affiliated to Capital Medical University, Beijing, 100043, China
| | - Xia Zhao
- Department of Geriatrics, Beijing Chaoyang Hospital Affiliated to Capital Medical University, Beijing, 100043, China
| | - Tian Tian
- Department of Geriatrics, Beijing Chaoyang Hospital Affiliated to Capital Medical University, Beijing, 100043, China
| | - Liying Tang
- Department of Geriatrics, Beijing Chaoyang Hospital Affiliated to Capital Medical University, Beijing, 100043, China
| | - Jing Ru
- Department of Geriatrics, Beijing Chaoyang Hospital Affiliated to Capital Medical University, Beijing, 100043, China
| | - Yun An
- Department of Geriatrics, Beijing Chaoyang Hospital Affiliated to Capital Medical University, Beijing, 100043, China
| | - Jing Wang
- Department of Geriatrics, Beijing Chaoyang Hospital Affiliated to Capital Medical University, Beijing, 100043, China.
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Jiki Z, Lecour S, Nduhirabandi F. Cardiovascular Benefits of Dietary Melatonin: A Myth or a Reality? Front Physiol 2018; 9:528. [PMID: 29867569 PMCID: PMC5967231 DOI: 10.3389/fphys.2018.00528] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Accepted: 04/24/2018] [Indexed: 12/14/2022] Open
Abstract
The role of the diet as well as the impact of the dietary habits on human health and disease is well established. Apart from its sleep regulatory effect, the indoleamine melatonin is a well-established antioxidant molecule with multiple health benefits. Convincing evidence supports the presence of melatonin in plants and foods with the intake of such foods affecting circulating melatonin levels in humans. While numerous actions of both endogenous melatonin and melatonin supplementation are well described, little is known about the influence of the dietary melatonin intake on human health. In the present review, evidence for the cardiovascular health benefits of melatonin supplementation and dietary melatonin is discussed. Current knowledge on the biological significance as well as the underlying physiological mechanism of action of the dietary melatonin is also summarized. Whether dietary melatonin constitutes an alternative preventive treatment for cardiovascular disease is addressed.
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Affiliation(s)
- Zukiswa Jiki
- Cardioprotection Group, Hatter Institute for Cardiovascular Research in Africa, Department of Medicine, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
| | - Sandrine Lecour
- Cardioprotection Group, Hatter Institute for Cardiovascular Research in Africa, Department of Medicine, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
| | - Frederic Nduhirabandi
- Cardioprotection Group, Hatter Institute for Cardiovascular Research in Africa, Department of Medicine, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
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Li T, Ni L, Zhao Z, Liu X, Lai Z, Di X, Xie Z, Song X, Wang X, Zhang R, Liu C. Melatonin attenuates smoking-induced hyperglycemia via preserving insulin secretion and hepatic glycogen synthesis in rats. J Pineal Res 2018; 64:e12475. [PMID: 29437243 PMCID: PMC5947659 DOI: 10.1111/jpi.12475] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/03/2018] [Accepted: 02/02/2018] [Indexed: 12/11/2022]
Abstract
Epidemiology survey indicated that cigarette smoking is a risk factor of diabetes. However, the precise mechanisms remain to be clarified. In this study, we found that smoking caused metabolic malfunctions on pancreas and liver in experimental animal model. These were indicated by hyperglycemia, increased serum hemoglobin A1c level and decreased insulin secretion, inhibition of liver glycogen synthase (LGS), and hepatic glycogen synthesis. Mechanistic studies revealed that all these alterations were caused by the inflammatory reaction and reactive oxygen species (ROS) induced by the smoking. Melatonin treatment significantly preserved the functions of both pancreas and liver by reducing β cell apoptosis, CD68-cell infiltration, ROS production, and caspase-3 expression. The siRNA-knockdown model identified that the protective effects of melatonin were mediated by melatonin receptor-2 (MT2). This study uncovered potentially underlying mechanisms related to the association between smoking and diabetes. In addition, it is, for first time, to report that melatonin effectively protects against smoking-induced glucose metabolic alterations and the signal transduction pathway of melatonin is mainly mediated by its MT2 receptor. These observations provide solid evidence for the clinically use of melatonin to reduce smoking-related diabetes, and the therapeutic regimens are absent currently.
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Affiliation(s)
- Tianjia Li
- Department of Vascular SurgeryPeking Union Medical College HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijingChina
| | - Leng Ni
- Department of Vascular SurgeryPeking Union Medical College HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijingChina
| | - Zhewei Zhao
- Department of Vascular SurgeryPeking Union Medical College HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijingChina
| | - Xinnong Liu
- Department of Vascular SurgeryPeking Union Medical College HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijingChina
| | - Zhichao Lai
- Department of Vascular SurgeryPeking Union Medical College HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijingChina
| | - Xiao Di
- Department of Vascular SurgeryPeking Union Medical College HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijingChina
| | - Zhibo Xie
- Department of Vascular SurgeryPeking Union Medical College HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijingChina
| | - Xitao Song
- Department of Vascular SurgeryPeking Union Medical College HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijingChina
| | - Xuebin Wang
- Department of Vascular SurgeryPeking Union Medical College HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijingChina
| | - Rui Zhang
- Department of Vascular SurgeryPeking Union Medical College HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijingChina
| | - Changwei Liu
- Department of Vascular SurgeryPeking Union Medical College HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijingChina
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Song J, Chu S, Cui Y, Qian Y, Li X, Xu F, Shao X, Ma Z, Xia T, Gu X. Circadian rhythm resynchronization improved isoflurane-induced cognitive dysfunction in aged mice. Exp Neurol 2018; 306:45-54. [PMID: 29660304 DOI: 10.1016/j.expneurol.2018.04.009] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Revised: 03/15/2018] [Accepted: 04/11/2018] [Indexed: 02/06/2023]
Abstract
Postoperative cognitive dysfunction (POCD) is a common clinical phenomenon characterized by cognitive deficits in patients after anesthesia and surgery. Advanced age is a significant independent risk factor for POCD. We previously reported that in young mice, sleep-wake rhythm is involved in the isoflurane-induced memory impairment. In present study, we sought to determine whether advanced age increased the risk of POCD through aggravated and prolonged post-anesthetic circadian disruption in the elderly. We constructed POCD model by submitting the mice to 5-h 1.3% isoflurane anesthesia from Zeitgeber Time (ZT) 14 to ZT19. Under novel object recognition assay (NOR) and Morris water maze (MWM) test, We found 5-h isoflurane anesthesia impaired the cognition of young mice for early 3 days after anesthesia but damaged the aged for at least 1 week. With Mini-Mitter continuously monitoring, a 3.22 ± 0.75 h gross motor activity acrophase delay was manifested in young mice on D1, while in the aged mice, the gross motor activity phase shift lasted for 3 days, consistent with the body temperature rhythm trends of change. Melatonin has been considered as an effective remedy for circadian rhythm shift. In aged mice, melatonin was pretreated intragastrically at the dose of 10 mg/kg daily for 7 consecutive days before anesthesia. We found that melatonin prevented isoflurane-induced cognitive impairments by restoring the locomotor activity and temperature circadian rhythm via clock gene resynchronization. Overall, these results indicated that Long-term isoflurane anesthesia induced more aggravated and prolonged memory deficits and circadian rhythms disruption in aged mice. Melatonin could prevent isoflurane-induced cognitive impairments by circadian rhythm resynchronization.
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Affiliation(s)
- Jia Song
- Department of Anesthesiology, Affiliated Drum Tower Hospital of Medical Department of Nanjing University, 321 Zhong Shan Road, Nanjing, Jiangsu 210008, PR China
| | - Shuaishuai Chu
- Department of Anesthesiology, Affiliated Drum Tower Hospital of Medical Department of Nanjing University, 321 Zhong Shan Road, Nanjing, Jiangsu 210008, PR China
| | - Yin Cui
- Department of Anesthesiology, Affiliated Drum Tower Hospital of Medical Department of Nanjing University, 321 Zhong Shan Road, Nanjing, Jiangsu 210008, PR China
| | - Yue Qian
- Department of Anesthesiology, Affiliated Drum Tower Hospital of Medical Department of Nanjing University, 321 Zhong Shan Road, Nanjing, Jiangsu 210008, PR China
| | - Xiuxiu Li
- Department of Anesthesiology, Affiliated Drum Tower Hospital of Medical Department of Nanjing University, 321 Zhong Shan Road, Nanjing, Jiangsu 210008, PR China
| | - Fangxia Xu
- Department of Anesthesiology, Affiliated Drum Tower Hospital of Medical Department of Nanjing University, 321 Zhong Shan Road, Nanjing, Jiangsu 210008, PR China
| | - Xueming Shao
- Department of Anesthesiology, Affiliated Drum Tower Hospital of Medical Department of Nanjing University, 321 Zhong Shan Road, Nanjing, Jiangsu 210008, PR China
| | - Zhengliang Ma
- Department of Anesthesiology, Affiliated Drum Tower Hospital of Medical Department of Nanjing University, 321 Zhong Shan Road, Nanjing, Jiangsu 210008, PR China.
| | - Tianjiao Xia
- Department of Anesthesiology, Affiliated Drum Tower Hospital of Medical Department of Nanjing University, 321 Zhong Shan Road, Nanjing, Jiangsu 210008, PR China; Jiangsu Key Laboratory of Molecular Medicine, Nanjing University, Nanjing 210093, PR China.
| | - Xiaoping Gu
- Department of Anesthesiology, Affiliated Drum Tower Hospital of Medical Department of Nanjing University, 321 Zhong Shan Road, Nanjing, Jiangsu 210008, PR China.
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Hannan NJ, Binder NK, Beard S, Nguyen TV, Kaitu’u-Lino TJ, Tong S. Melatonin enhances antioxidant molecules in the placenta, reduces secretion of soluble fms-like tyrosine kinase 1 (sFLT) from primary trophoblast but does not rescue endothelial dysfunction: An evaluation of its potential to treat preeclampsia. PLoS One 2018; 13:e0187082. [PMID: 29641523 PMCID: PMC5894956 DOI: 10.1371/journal.pone.0187082] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2017] [Accepted: 09/21/2017] [Indexed: 12/21/2022] Open
Abstract
Preeclampsia is one of the most serious complications of pregnancy. Currently there are no medical treatments. Given placental oxidative stress may be an early trigger in the pathogenesis of preeclampsia, therapies that enhance antioxidant pathways have been proposed as treatments. Melatonin is a direct free-radical scavenger and indirect antioxidant. We performed in vitro assays to assess whether melatonin 1) enhances the antioxidant response element genes (heme-oxygenase 1, (HO-1), glutamate-cysteine ligase (GCLC), NAD(P)H:quinone acceptor oxidoreductase 1 (NQO1), thioredoxin (TXN)) or 2) alters secretion of the anti-angiogenic factors soluble fms-like tyrosine kinase-1 (sFLT) or soluble endoglin (sENG) from human primary trophoblasts, placental explants and human umbilical vein endothelial cells (HUVECs) and 3) can rescue TNF-α induced endothelial dysfunction. In primary trophoblast melatonin treatment increased expression of the antioxidant enzyme TXN. Expression of TXN, GCLC and NQO1 was upregulated in placental tissue with melatonin treatment. HUVECs treated with melatonin showed an increase in both TXN and GCLC. Melatonin did not increase HO-1 expression in any of the tissues examined. Melatonin reduced sFLT secretion from primary trophoblasts, but had no effect on sFLT or sENG secretion from placental explants or HUVECs. Melatonin did not rescue TNF-α induced VCAM-1 and ET-1 expression in endothelial cells. Our findings suggest that melatonin induces antioxidant pathways in placenta and endothelial cells. Furthermore, it may have effects in reducing sFLT secretion from trophoblast, but does not reduce endothelial dysfunction. Given it is likely to be safe in pregnancy, it may have potential as a therapeutic agent to treat or prevent preeclampsia.
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Affiliation(s)
- Natalie J. Hannan
- Translational Obstetrics Group, Mercy Perinatal, Department of Obstetrics and Gynaecology, University of Melbourne, Mercy Hospital for Women, Heidelberg, Victoria, Australia
- * E-mail:
| | - Natalie K. Binder
- Translational Obstetrics Group, Mercy Perinatal, Department of Obstetrics and Gynaecology, University of Melbourne, Mercy Hospital for Women, Heidelberg, Victoria, Australia
| | - Sally Beard
- Translational Obstetrics Group, Mercy Perinatal, Department of Obstetrics and Gynaecology, University of Melbourne, Mercy Hospital for Women, Heidelberg, Victoria, Australia
| | - Tuong-Vi Nguyen
- Translational Obstetrics Group, Mercy Perinatal, Department of Obstetrics and Gynaecology, University of Melbourne, Mercy Hospital for Women, Heidelberg, Victoria, Australia
| | - Tu’uhevaha J. Kaitu’u-Lino
- Translational Obstetrics Group, Mercy Perinatal, Department of Obstetrics and Gynaecology, University of Melbourne, Mercy Hospital for Women, Heidelberg, Victoria, Australia
| | - Stephen Tong
- Translational Obstetrics Group, Mercy Perinatal, Department of Obstetrics and Gynaecology, University of Melbourne, Mercy Hospital for Women, Heidelberg, Victoria, Australia
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Melatonin: A Versatile Protector against Oxidative DNA Damage. Molecules 2018; 23:molecules23030530. [PMID: 29495460 PMCID: PMC6017920 DOI: 10.3390/molecules23030530] [Citation(s) in RCA: 160] [Impact Index Per Article: 26.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2018] [Revised: 02/13/2018] [Accepted: 02/22/2018] [Indexed: 12/15/2022] Open
Abstract
Oxidative damage to DNA has important implications for human health and has been identified as a key factor in the onset and development of numerous diseases. Thus, it is evident that preventing DNA from oxidative damage is crucial for humans and for any living organism. Melatonin is an astonishingly versatile molecule in this context. It can offer both direct and indirect protection against a wide variety of damaging agents and through multiple pathways, which may (or may not) take place simultaneously. They include direct antioxidative protection, which is mediated by melatonin's free radical scavenging activity, and also indirect ways of action. The latter include, at least: (i) inhibition of metal-induced DNA damage; (ii) protection against non-radical triggers of oxidative DNA damage; (iii) continuous protection after being metabolized; (iv) activation of antioxidative enzymes; (v) inhibition of pro-oxidative enzymes; and (vi) boosting of the DNA repair machinery. The rather unique capability of melatonin to exhibit multiple neutralizing actions against diverse threatening factors, together with its low toxicity and its ability to cross biological barriers, are all significant to its efficiency for preventing oxidative damage to DNA.
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Wei Z, Jiang W, Wang H, Li H, Tang B, Liu B, Jiang H, Sun X. The IL-6/STAT3 pathway regulates adhesion molecules and cytoskeleton of endothelial cells in thromboangiitis obliterans. Cell Signal 2018; 44:118-126. [PMID: 29339086 DOI: 10.1016/j.cellsig.2018.01.015] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2017] [Revised: 12/14/2017] [Accepted: 01/11/2018] [Indexed: 12/21/2022]
Abstract
Thromboangiitis obliterans (TAO) (also known as Buerger's disease) is an inflammatory vascular disease that predominantly affects small- and medium-sized blood vessels of extremities. Endothelial cells play critical roles in the initiation and progression of this disease, but the underlying mechanisms remain unclear. In the present study, we demonstrate that patients with TAO had significantly higher levels of interleukin-6 (IL-6), soluble intercellular adhesion molecule-1 (sICAM-1) and soluble vascular cell adhesion molecule-1 (sVCAM-1) in their plasmas, and the involved arterial tissues expressed higher levels of phosphorylated signal transducer and activator of transcription 3 (p-STAT3), ICAM-1 and VCAM-1. In exploring the molecular mechanisms with human aortic endothelial cells (HAECs), we found that recombinant IL-6 activated the STAT3 pathway, leading to the upregulation and overproduction of ICAM-1 and VCAM-1. RhoA (Ras homolog family member A), eNOS (endothelial nitric oxide synthase) and MMP-9 (matrix metalloproteinase-9) participated in this cellular signaling, and their interaction regulated the expression of ICAM-1 and VCAM-1. The activated STAT3 pathway by IL-6 also modulated the cytoskeleton of HAECs by regulating phosphorylation of focal adhesion kinase (FAK) and acetylation of α-tubulin through interplaying with RhoA. In summary, the present results indicate that activation of the IL-6/STAT3 pathway contributes to the pathogenesis of TAO by regulating cellular adhesion molecules and cytoskeleton of vascular endothelial cells, suggesting that targeting this pathway may provide a potential approach for the management of TAO.
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Affiliation(s)
- Zheng Wei
- Department of Vascular Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin 150001, China.
| | - Wenjing Jiang
- Key Laboratory of Hepatosplenic Surgery, Department of General Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin 150001, China
| | - Hengzhen Wang
- Department of Vascular Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin 150001, China
| | - Hali Li
- Department of Vascular Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin 150001, China
| | - Bo Tang
- Department of Vascular Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin 150001, China
| | - Bing Liu
- Department of Vascular Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin 150001, China
| | - Hongchi Jiang
- Key Laboratory of Hepatosplenic Surgery, Department of General Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin 150001, China
| | - Xueying Sun
- Key Laboratory of Hepatosplenic Surgery, Department of General Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin 150001, China.
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Resistin as a Prooxidant Factor and Predictor of Endothelium Damage in Patients with Mild Acute Pancreatitis Exposed to Tobacco Smoke Xenobiotics. Mediators Inflamm 2017; 2017:3039765. [PMID: 29081601 PMCID: PMC5634610 DOI: 10.1155/2017/3039765] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2017] [Accepted: 07/27/2017] [Indexed: 12/17/2022] Open
Abstract
Objectives The study was aimed to assess the influence of tobacco smoke exposure on the intensity of inflammation measured by IL-6, α1-antitripsin (AAT) and α1-acid glycoprotein (AGP) concentrations, and Cd level and oxidative stress intensity measured by advanced oxidation protein product (AOPP) concentration in the blood of healthy subjects and AP patients during hospitalization. Endothelin-1 (ET-1) and resistin concentrations, markers of endothelium injury, were determined. Results An increased IL-6 concentration in healthy smokers compared to nonsmokers and AP patients compared to controls was shown. An increased AAT and AGP concentrations during hospitalization of AP patients were noted, in both smokers (AAT, AGP) and nonsmokers (AAT). In comparison to control groups, in AP patients, a 2-fold increased resistin concentration correlating with ET-1 concentration and decreased albumin concentration accompanied by increased AOPP concentration were demonstrated. AOPP concentration was higher in smokers with AP compared to nonsmokers and gradually enhanced during their hospitalization. Conclusions Tobacco smoke exposure can have a proinflammatory effect in both healthy subjects and AP patients. Increased resistin concentration in AP patients negatively correlating with albumin concentration has prooxidative effect on this protein resulting in enhanced AOPP level. Increased resistin concentration can intensify AAT and AGP production during AP.
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Sun H, Wang X, Chen J, Song K, Gusdon AM, Li L, Bu L, Qu S. Melatonin improves non-alcoholic fatty liver disease via MAPK-JNK/P38 signaling in high-fat-diet-induced obese mice. Lipids Health Dis 2016; 15:202. [PMID: 27876064 PMCID: PMC5120511 DOI: 10.1186/s12944-016-0370-9] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2016] [Accepted: 11/10/2016] [Indexed: 01/21/2023] Open
Abstract
Background Melatonin can regulate lipid metabolism, increase insulin sensitivity, regulate glucose metabolism and reduce body weight. This study is aimed to determine the effects and mechanism of action of melatonin on non-alcoholic fatty liver disease (NAFLD) in high-fat-diet (HFD) induced obese mice. Methods NAFLD was induced by HFD in C57BL/6 mice. A total of 24 mice were randomly assigned to 4 groups. Groups A and B were fed with HFD for 36 weeks while groups C and D were fed with a regular diet (RD). During the last 12 weeks, Groups A and C were treated with 10 mg/kg melatonin while Groups B and D were treated with water in the same volume by intragastric administration. Body and liver weight, blood glucose, serum transaminases and lipid levels, and markers of hepatic inflammation were measured. Histological analyses were also performed on liver tissue. Results After 12 weeks of treatment with melatonin, body weights (Group A: before 53.11 ± 0.72 vs after 12w treatment 39.48 ± 0.74) and liver weights (A 1.93 ± 0.09 g vs B 2.92 ± 0.19 g vs C 1.48 ± 0.09 g vs D 1.49 ± 0.10 g), fasting plasma glucose, alanine transaminase (A 24.33 ± 11.90 IU/L vs B 60.80 ± 10.18 IU/L vs C 13.01 ± 3.49 IU/L vs D 16.62 ± 2.00 IU/L), and low-density cholesterol (A 0.24 ± 0.06 mmol/L vs B 1.57 ± 0.10 mmol/L vs C 0.28 ± 0.06 mmol/L vs D 0.29 ± 0.03 mmol/L) were significantly decreased in HFD mice. HFD fed mice treated with melatonin showed significantly less liver steatosis. Treatment of HFD fed mice with melatonin led to a significant decrease in the expression of TNF-α, IL-1β, and IL-6 measured using quantitative real-time polymerase chain reaction (qRT-PCR). HFD fed mice demonstrated increased phosphorylation of P38 and JNK1/2, which was reduced by melatonin treatment. Conclusions The study concluded that melatonin could improve NAFLD by decreasing body weight and reduce inflammation in HFD induced obese mice by modulating the MAPK-JNK/P38 signaling pathway.
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Affiliation(s)
- Hang Sun
- Department of Endocrinology and Metabolism, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, 200072, China
| | - Xingchun Wang
- Department of Endocrinology and Metabolism, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, 200072, China
| | - Jiaqi Chen
- Nanjing Medical University, Nanjing, Jiangsu, 210029, China
| | - Kexiu Song
- Department of Endocrinology and Metabolism, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, 200072, China
| | - Aaron M Gusdon
- Department of Neurology, Weill Cornell Medical College, New York, NY, 10065, USA
| | - Liang Li
- Department of Endocrinology and Metabolism, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, 200072, China
| | - Le Bu
- Department of Endocrinology and Metabolism, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, 200072, China
| | - Shen Qu
- Department of Endocrinology and Metabolism, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, 200072, China.
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Li T, Ni L, Liu X, Wang Z, Liu C. High glucose induces the expression of osteopontin in blood vessels in vitro and in vivo. Biochem Biophys Res Commun 2016; 480:201-207. [PMID: 27743892 DOI: 10.1016/j.bbrc.2016.10.027] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2016] [Accepted: 10/11/2016] [Indexed: 02/01/2023]
Abstract
Osteopontin (OPN) is involved in mineral metabolism and the inflammatory response while diabetes mellitus is associated with severe and extensive vascular calcification. Therefore, we speculated that OPN could be a key factor in the calcification and dysfunction of blood vessels exposed to high glucose. To identify the relationship between high glucose and OPN, we used high glucose medium to stimulate smooth muscle cells (SMCs) and vascular endothelial cells (VECs) in vitro and diabetic rats for in vivo analyses. As assessed by flow cytometry and western blots, SMC and VEC apoptosis levels increased with high glucose. Potassium and calcium uptake by cells were also increased with high glucose. These findings demonstrated the relationship between mineral metabolism and high glucose. Western blot and quantitative real time polymerase chain reaction analyses demonstrated that OPN increased in vitro with high glucose stimulation. The inflammatory factor ICAM1 and the inhibitory phosphorylation of endothelial nitric-oxide synthase (eNOS) (Thr495) were also upregulated by high glucose. In contrast, the anti-inflammatory factor Nrf2 and the activating phosphorylation of eNOS (Ser1177) were downregulated. Similar to the change of OPN, phosphorylated P38 was increased with high glucose. SB203580, an inhibitor of P38 phosphorylation, downregulated the expression of OPN and related inflammatory factors. Additionally, OPN was increased in the aortas and plasma of diabetic rats. In conclusion, our findings demonstrate that high glucose can induce the expression of OPN, which may be a key factor in the calcification and dysfunction of the vascular wall in diabetes.
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Affiliation(s)
- Tianjia Li
- Department of Vascular Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, 5 Dong Dan San Tiao, Beijing 100005, China
| | - Leng Ni
- Department of Vascular Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, 5 Dong Dan San Tiao, Beijing 100005, China
| | - Xinnong Liu
- Department of Vascular Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, 5 Dong Dan San Tiao, Beijing 100005, China
| | - Zhanqi Wang
- Department of Vascular Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, 5 Dong Dan San Tiao, Beijing 100005, China
| | - Changwei Liu
- Department of Vascular Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, 5 Dong Dan San Tiao, Beijing 100005, China.
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Reiter RJ, Mayo JC, Tan DX, Sainz RM, Alatorre-Jimenez M, Qin L. Melatonin as an antioxidant: under promises but over delivers. J Pineal Res 2016; 61:253-78. [PMID: 27500468 DOI: 10.1111/jpi.12360] [Citation(s) in RCA: 994] [Impact Index Per Article: 124.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2016] [Accepted: 08/05/2016] [Indexed: 12/12/2022]
Abstract
Melatonin is uncommonly effective in reducing oxidative stress under a remarkably large number of circumstances. It achieves this action via a variety of means: direct detoxification of reactive oxygen and reactive nitrogen species and indirectly by stimulating antioxidant enzymes while suppressing the activity of pro-oxidant enzymes. In addition to these well-described actions, melatonin also reportedly chelates transition metals, which are involved in the Fenton/Haber-Weiss reactions; in doing so, melatonin reduces the formation of the devastatingly toxic hydroxyl radical resulting in the reduction of oxidative stress. Melatonin's ubiquitous but unequal intracellular distribution, including its high concentrations in mitochondria, likely aid in its capacity to resist oxidative stress and cellular apoptosis. There is credible evidence to suggest that melatonin should be classified as a mitochondria-targeted antioxidant. Melatonin's capacity to prevent oxidative damage and the associated physiological debilitation is well documented in numerous experimental ischemia/reperfusion (hypoxia/reoxygenation) studies especially in the brain (stroke) and in the heart (heart attack). Melatonin, via its antiradical mechanisms, also reduces the toxicity of noxious prescription drugs and of methamphetamine, a drug of abuse. Experimental findings also indicate that melatonin renders treatment-resistant cancers sensitive to various therapeutic agents and may be useful, due to its multiple antioxidant actions, in especially delaying and perhaps treating a variety of age-related diseases and dehumanizing conditions. Melatonin has been effectively used to combat oxidative stress, inflammation and cellular apoptosis and to restore tissue function in a number of human trials; its efficacy supports its more extensive use in a wider variety of human studies. The uncommonly high-safety profile of melatonin also bolsters this conclusion. It is the current feeling of the authors that, in view of the widely diverse beneficial functions that have been reported for melatonin, these may be merely epiphenomena of the more fundamental, yet-to-be identified basic action(s) of this ancient molecule.
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Affiliation(s)
- Russel J Reiter
- Department of Cellular and Structural Biology, University of Texas Health Science Center, San Antonio, TX, USA.
| | - Juan C Mayo
- Department of Cellular and Structural Biology, University of Texas Health Science Center, San Antonio, TX, USA
| | - Dun-Xian Tan
- Department of Cellular and Structural Biology, University of Texas Health Science Center, San Antonio, TX, USA
| | - Rosa M Sainz
- Department of Cellular and Structural Biology, University of Texas Health Science Center, San Antonio, TX, USA
| | - Moises Alatorre-Jimenez
- Department of Cellular and Structural Biology, University of Texas Health Science Center, San Antonio, TX, USA
| | - Lilian Qin
- Department of Cellular and Structural Biology, University of Texas Health Science Center, San Antonio, TX, USA
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Abstract
PURPOSE OF REVIEW Melatonin is a neuroendocrine hormone synthesized primarily by the pineal gland. Numerous studies have suggested that melatonin plays an important role in various cardiovascular diseases. In this article, recent progress regarding melatonin's effects on cardiovascular diseases is reviewed. RECENT FINDINGS In the past year, studies have focused on the mechanism of protection of melatonin on cardiovascular diseases, including myocardial ischemia-reperfusion injury, myocardial hypoxia-reoxygenation injury, pulmonary hypertension, hypertension, atherosclerosis, valvular heart diseases, and other cardiovascular diseases. SUMMARY Studies have demonstrated that melatonin has significant effects on ischemia-reperfusion injury, myocardial chronic intermittent hypoxia injury, pulmonary hypertension, hypertension, valvular heart diseases, vascular diseases, and lipid metabolism. As an inexpensive and well tolerated drug, melatonin may be a new therapeutic option for cardiovascular disease.
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Affiliation(s)
- Hang Sun
- Department of Endocrinology and Metabolism, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Aaron M. Gusdon
- Department of Pathology, Division of Neuropathology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania; Department of Neurology, Weill Cornell Medical College, New York, USA
| | - Shen Qu
- Department of Endocrinology and Metabolism, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, China
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