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Sun C, Wang L, Huang H, Zheng Z, Xu X, Wang H, Chen K, Li X, Lai Y, Zhang H, Chu M, Zheng J. Mitigation of gestational diabetes-induced endothelial dysfunction through FGF21-NRF2 pathway activation involving L-Cystine. Biochim Biophys Acta Mol Basis Dis 2024; 1870:167329. [PMID: 38960053 DOI: 10.1016/j.bbadis.2024.167329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Revised: 06/19/2024] [Accepted: 06/25/2024] [Indexed: 07/05/2024]
Abstract
Gestational diabetes mellitus (GDM) disrupts glucolipid metabolism, endangering maternal and fetal health. Despite limited research on its pathogenesis and treatments, we conducted a study using serum samples from GDM-diagnosed pregnant women. We performed metabolic sequencing to identify key small molecule metabolites and explored their molecular interactions with FGF21. We also investigated FGF21's impact on GDM using blood samples from affected women. Our analysis revealed a novel finding: elevated levels of L-Cystine in GDM patients. Furthermore, we observed a positive correlation between L-Cystine and FGF21 levels, and found that L-Cystine induces NRF2 expression via FGF21 for a period of 96 h. Under high glucose (HG) conditions, FGF21 upregulates NRF2 and downstream genes NQO1 and EPHX1 via AKT phosphorylation induced by activation of IRS1, enhancing endothelial function. Additionally, we confirmed that levels of FGF21, L-Cystine, and endothelial function at the third trimester were effectively enhanced through appropriate exercise and diet during pregnancy in GDM patients (GDM + ED). These findings suggest FGF21 as a potential therapeutic agent for GDM, particularly in protecting endothelial cells. Moreover, elevated L-Cystine via appropriate exercise and diet might be a potential strategy to enhance FGF21's efficacy.
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Affiliation(s)
- Congcong Sun
- Department of Scientific Research Center, The Third Affiliated to Shanghai University, Wenzhou People's Hospital, Wenzhou, China
| | - Linlin Wang
- Children's Heart Center, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Huiya Huang
- Department of Intensive Care Unit, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Zhenzhen Zheng
- Department of Obstetrics and Gynecology, The Third Affiliated to Shanghai University, Wenzhou People's Hospital, Wenzhou, China
| | - Xiaomin Xu
- Department of Scientific Research Center, The Third Affiliated to Shanghai University, Wenzhou People's Hospital, Wenzhou, China
| | - Hai Wang
- Department of Reproduction and Genetics, The Third Affiliated to Shanghai University, Wenzhou People's Hospital, Wenzhou, China
| | - Kaixin Chen
- Department of Reproduction and Genetics, The Third Affiliated to Shanghai University, Wenzhou People's Hospital, Wenzhou, China
| | - Xiaoqing Li
- Department of Scientific Research Center, The Third Affiliated to Shanghai University, Wenzhou People's Hospital, Wenzhou, China
| | - Yanan Lai
- Department of Reproduction and Genetics, The Third Affiliated to Shanghai University, Wenzhou People's Hospital, Wenzhou, China
| | - Hongping Zhang
- Department of Obstetrics and Gynecology, The Third Affiliated to Shanghai University, Wenzhou People's Hospital, Wenzhou, China.
| | - Maoping Chu
- Children's Heart Center, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China; Key Laboratory of Structural Malformations in Children of Zhejiang Province, Wenzhou, 325000, Zhejiang, Province, China.
| | - Jianqiong Zheng
- Department of Obstetrics and Gynecology, The Third Affiliated to Shanghai University, Wenzhou People's Hospital, Wenzhou, China.
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Moon JH, Jeong S, Jang H, Koo BK, Kim W. Metabolic dysfunction-associated steatotic liver disease increases the risk of incident cardiovascular disease: a nationwide cohort study. EClinicalMedicine 2023; 65:102292. [PMID: 37954905 PMCID: PMC10632413 DOI: 10.1016/j.eclinm.2023.102292] [Citation(s) in RCA: 20] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Revised: 10/11/2023] [Accepted: 10/12/2023] [Indexed: 11/14/2023] Open
Abstract
Background The various subcategories under the overarching term of steatotic liver disease (SLD) have been recently proposed by the nomenclature consensus group and endorsed by international academic liver societies. Our aim was to investigate the association between each subtype of SLD and incident cardiovascular disease (CVD) in a nationwide Korean cohort. Methods From a nationwide health screening database from Korea, 351,068 individuals aged 47-86 years between January 1, 2009 and December 31, 2010 were included and followed until December 31, 2019 for a median of 9.0 years. Individuals were categorised into no SLD, metabolic dysfunction-associated steatotic liver disease (MASLD), MASLD with increased alcohol intake (MetALD), and alcohol-related liver disease (ALD). Hepatic steatosis was defined as fatty liver index ≥60. The primary outcome was a composite CVD, which includes non-fatal and fatal myocardial infarction and stroke. The subdistribution hazard ratio (SHR) was calculated using the Fine-Gray model with treating non-CVD-related death as a competing risk. Findings There were 199,817 male (56.9%) and 151,251 female (43.1%) with a median age of 55 years (interquartile range, 50-61). The prevalence of no SLD, MASLD, MetALD, and ALD was 44.3%, 47.2%, 6.4%, and 2.1%, respectively; and the incidence rate of CVD in each subcategory was 6.2, 8.5, 8.5, and 9.6 per 1000 person-years, respectively. MASLD (SHR, 1.19; 95% confidence interval [CI], 1.15-1.24), MetALD (SHR, 1.28; 95% CI, 1.20-1.36), and ALD (SHR, 1.29; 95% CI, 1.18-1.41) increased the risk of CVD compared to no SLD, which increment was in consecutive order (Ptrend < 0.001). Interpretation Individuals with MASLD, MetALD, or ALD are at an increased risk of developing incident CVD. Higher risk of CVD observed in MetALD compared to MASLD suggests the additive impact of alcohol consumption in conjunction with cardiometabolic risk factors on CVD development. These findings support and validate the utility of the new consensus criteria for SLD in predicting CVD. Funding The National Research Foundation of Korea and the Korea Centers for Disease Control and Prevention.
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Affiliation(s)
- Joon Ho Moon
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, South Korea
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, South Korea
| | - Seogsong Jeong
- Department of Biomedical Informatics, CHA University School of Medicine, Seongnam, South Korea
| | - Heejoon Jang
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, South Korea
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Seoul Metropolitan Government Boramae Medical Center, Seoul, South Korea
| | - Bo Kyung Koo
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, South Korea
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Seoul Metropolitan Government Boramae Medical Center, Seoul, South Korea
| | - Won Kim
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, South Korea
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Seoul Metropolitan Government Boramae Medical Center, Seoul, South Korea
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Ribeiro NG, Lelis DF, Molina MDCB, Schmidt MI, Duncan BB, Griep RH, Barreto SM, Bensenor I, Lotufo PA, Mill JG, Baldo MP. The high salt intake in adults with metabolic syndrome is related to increased waist circumference and blood pressure: the Brazilian Longitudinal Study of Adult Health study (ELSA-Brasil). Nutrition 2023; 114:112108. [PMID: 37406608 DOI: 10.1016/j.nut.2023.112108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2023] [Revised: 05/18/2023] [Accepted: 05/25/2023] [Indexed: 07/07/2023]
Abstract
OBJECTIVES The association between metabolic syndrome (MetS), a cluster of cardiometabolic risk factors, and salt consumption has fed intense debate in recent years, although it is yet to be fully elucidated. We aimed to evaluate whether individuals with MetS have a high salt consumption and to identify which components of the MetS diagnosis could be independently related to high salt consumption. METHODS We analyzed data from 11 982 adults, ages 35 to 74 y, from the Brazilian Longitudinal Study of Adult Health (ELSA-Brasil) cohort study, from which clinical and anthropometric data were assessed, and a validated 12-h overnight urine collection was used to estimate salt intake. MetS was defined according to the Adult Treatment Panel III criteria. RESULTS Salt intake was increased in individuals with MetS compared with individuals without MetS, regardless of sex (men: 14.3 ± 6.4 g/d versus 12.2 ± 5.5 g/d, P < 0.001; women: 10.6 ± 4.9 g/d versus 8.9 ± 4.0 g/d, P < 0.001) and increased progressively as the MetS criteria accumulated. The high salt intake in MetS participants, however, was observed only in the presence of elevated waist circumference and/or blood pressure and not with the other MetS criteria (reduced high-density lipoprotein, increased triglycerides, and impaired fasting blood glucose), regardless of the presence of MetS. When diabetes was incorporated as a MetS criterion, increased salt intake was observed in men but not in women. CONCLUSIONS Salt intake should be reduced worldwide, but strategies must be more intense in people with elevated blood pressure and waist circumference, regardless of MetS diagnosis, to avoid the associated morbidity and mortality.
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Affiliation(s)
| | - Deborah F Lelis
- Department of Pathophysiology, Montes Claros State University (UNIMONTES), Montes Claros, Brazil
| | | | - Maria I Schmidt
- Postgraduate Program in Epidemiology, School of Medicine and Hospital de Clínicas de Porto Alegre, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Bruce B Duncan
- Postgraduate Program in Epidemiology, School of Medicine and Hospital de Clínicas de Porto Alegre, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Rosane H Griep
- Laboratory of Health and Environment Education, Oswaldo Cruz Institute, Rio de Janeiro, Brazil
| | - Sandhi M Barreto
- Faculty of Medicine and Clinical Hospital, Empresa Brasileira de Serviços Hospitalares - EBSERH, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Isabela Bensenor
- Center for Clinical and Epidemiologic Research, University of São Paulo, São Paulo, Brazil
| | - Paulo A Lotufo
- Center for Clinical and Epidemiologic Research, University of São Paulo, São Paulo, Brazil
| | - José G Mill
- Department of Physiological Sciences, Federal University of Espírito Santo, Vitória, Brazil
| | - Marcelo P Baldo
- Department of Pathophysiology, Montes Claros State University (UNIMONTES), Montes Claros, Brazil.
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Klobučar I, Stadler JT, Klobučar L, Lechleitner M, Trbušić M, Pregartner G, Berghold A, Habisch H, Madl T, Marsche G, Frank S, Degoricija V. Associations between Endothelial Lipase, High-Density Lipoprotein, and Endothelial Function Differ in Healthy Volunteers and Metabolic Syndrome Patients. Int J Mol Sci 2023; 24:2073. [PMID: 36768410 PMCID: PMC9916974 DOI: 10.3390/ijms24032073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 01/13/2023] [Accepted: 01/17/2023] [Indexed: 01/21/2023] Open
Abstract
Metabolic syndrome (MS) is characterized by endothelial- and high-density lipoprotein (HDL) dysfunction and increased endothelial lipase (EL) serum levels. We examined the associations between EL serum levels, HDL (serum levels, lipid content, and function), and endothelial function in healthy volunteers (HV) and MS patients. Flow-mediated dilation (FMD), nitroglycerin-mediated dilation (NMD), serum levels of HDL subclasses (measured by nuclear magnetic resonance (NMR) spectroscopy), and EL serum levels differed significantly between HV and MS patients. The serum levels of triglycerides in large HDL particles were significantly positively correlated with FMD and NMD in HV, but not in MS patients. Cholesterol (C) and phospholipid (PL) contents of large HDL particles, calculated as HDL1-C/HDL1-apoA-I and HDL1-PL/HDL1-apoA-I, respectively, were significantly negatively correlated with FMD in HV, but not in MS patients. Cholesterol efflux capacity and arylesterase activity of HDL, as well as EL, were correlated with neither FMD nor NMD. EL was significantly negatively correlated with HDL-PL/HDL-apoA-I in HV, but not in MS patients, and with serum levels of small dense HDL containing apolipoprotein A-II in MS patients, but not in HV. We conclude that MS modulates the association between HDL and endothelial function, as well as between EL and HDL. HDL cholesterol efflux capacity and arylesterase activity, as well as EL serum levels, are not associated with endothelial function in HV or MS patients.
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Affiliation(s)
- Iva Klobučar
- Department of Cardiology, Sisters of Charity University Hospital Centre, 10000 Zagreb, Croatia
| | - Julia T. Stadler
- Otto Loewi Research Center, Division of Pharmacology, Medical University of Graz, 8010 Graz, Austria
| | - Lucija Klobučar
- Department of Medicine, University Hospital Centre Osijek, 31000 Osijek, Croatia
| | - Margarete Lechleitner
- Gottfried Schatz Research Center, Molecular Biology and Biochemistry, Medical University of Graz, 8010 Graz, Austria
| | - Matias Trbušić
- Department of Cardiology, Sisters of Charity University Hospital Centre, 10000 Zagreb, Croatia
- School of Medicine, University of Zagreb, 10000 Zagreb, Croatia
| | - Gudrun Pregartner
- Institute for Medical Informatics, Statistics und Documentation, Medical University of Graz, 8036 Graz, Austria
| | - Andrea Berghold
- Institute for Medical Informatics, Statistics und Documentation, Medical University of Graz, 8036 Graz, Austria
| | - Hansjörg Habisch
- Gottfried Schatz Research Center, Molecular Biology and Biochemistry, Medical University of Graz, 8010 Graz, Austria
| | - Tobias Madl
- Gottfried Schatz Research Center, Molecular Biology and Biochemistry, Medical University of Graz, 8010 Graz, Austria
- BioTechMed-Graz, 8010 Graz, Austria
| | - Gunther Marsche
- Otto Loewi Research Center, Division of Pharmacology, Medical University of Graz, 8010 Graz, Austria
- BioTechMed-Graz, 8010 Graz, Austria
| | - Saša Frank
- Gottfried Schatz Research Center, Molecular Biology and Biochemistry, Medical University of Graz, 8010 Graz, Austria
- BioTechMed-Graz, 8010 Graz, Austria
| | - Vesna Degoricija
- School of Medicine, University of Zagreb, 10000 Zagreb, Croatia
- Department of Medicine, Sisters of Charity University Hospital Centre, 10000 Zagreb, Croatia
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Park SK, Jung JY, Kim MH, Oh CM, Ha E, Shin SS, Lee HC, Hwang WY, Ryoo JH. The association between changes in proteinuria and the risk of cerebral infarction in the Korean population. Diabetes Res Clin Pract 2022; 192:110090. [PMID: 36122864 DOI: 10.1016/j.diabres.2022.110090] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Revised: 09/06/2022] [Accepted: 09/12/2022] [Indexed: 11/03/2022]
Abstract
BACKGROUND Proteinuria is a risk factor for cerebral infarction. It is known that proteinuria can change over time. However, published data is scarce for the association between changes in proteinuria and the risk of cerebral infarction. METHOD Study participants were 276,861 Koreans who were assessed for urine dipstick proteinuria both in 2003-2004 and 2007-2008. They were categorized into four groups by changes in proteinuria over 4 years (negative: negative → negative, resolved: proteinuria ≥ 1+ → negative, incident: negative → proteinuria ≥ 1+, persistent: proteinuria ≥ 1+ → proteinuria ≥ 1 + ). We used multivariate adjusted Cox-proportional hazard model in calculating the adjusted hazard ratios (HR) and 95% confidence interval (CI) for cerebral infarction until 2013 according to changes in proteinuria. RESULT Adjusted HR and 95% CI for cerebral infarction significantly increased in order of persistent, incident, and resolved proteinuria, compared with negative proteinuria (negative: reference, resolved: 1.166 [1.009-1.347], incident: 1.345 [1.188-1.522], and persistent: 1.443 [1.089-1.912]). In gender subgroup analysis, men showed the more clear association between changes in proteinuria and the risk of cerebral infarction (negative: reference, resolved: 1.284 [1.057-1.560], incident: 1.351 [1.149-1.589], and persistent: 1.428 [1.014-2.012]). CONCLUSION All types of proteinuria changes were associated with the increased risk of cerebral infarction, even in participants with once manifested but vanishing proteinuria.
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Affiliation(s)
- Sung Keun Park
- Total Healthcare Center, Kangbuk Samsung Hospital, Sungkyunkwan University, School of Medicine, Seoul, Republic of Korea.
| | - Ju Young Jung
- Total Healthcare Center, Kangbuk Samsung Hospital, Sungkyunkwan University, School of Medicine, Seoul, Republic of Korea.
| | - Min-Ho Kim
- Department of Preventive Medicine, Graduate School, Kyung Hee University, Seoul, Republic of Korea; Informatization Department, Ewha Womans University Seoul Hospital, Seoul, Korea..
| | - Chang-Mo Oh
- Departments of Preventive Medicine, School of Medicine, Kyung Hee University, Seoul, Republic of Korea.
| | - Eunhee Ha
- Department of Occupational and Environment Medicine, College of Medicine, Ewha Womans University, Seoul, Republic of Korea.
| | - Soon Su Shin
- Department of Occupational & Environmental Medicine, Kyung Hee University Hospital, Seoul, Republic of Korea.
| | - Hyo Choon Lee
- Department of Occupational & Environmental Medicine, Kyung Hee University Hospital, Seoul, Republic of Korea.
| | - Woo Yeon Hwang
- Department of Obstetrics and Gynecology, Kyung Hee University Hospital, Seoul, Republic of Korea.
| | - Jae-Hong Ryoo
- Departments of Occupational and Environmental Medicine, School of Medicine, Kyung Hee University, Seoul, Republic of Korea.
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Davis KM, Petersen KS, Bowen KJ, Jones PJH, Taylor CG, Zahradka P, Letourneau K, Perera D, Wilson A, Wagner PR, Kris-Etherton PM, West SG. Effects of Diets Enriched with Conventional or High-Oleic Canola Oils on Vascular Endothelial Function: A Sub-Study of the Canola Oil Multi-Centre Intervention Trial 2 (COMIT-2), a Randomized Crossover Controlled Feeding Study. Nutrients 2022; 14:nu14163404. [PMID: 36014910 PMCID: PMC9416081 DOI: 10.3390/nu14163404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2022] [Revised: 08/11/2022] [Accepted: 08/16/2022] [Indexed: 11/16/2022] Open
Abstract
Partial replacement of saturated fatty acids (SFA) with unsaturated fatty acids is recommended to reduce cardiovascular disease (CVD) risk. Monounsaturated fatty acids (MUFA), including oleic acid, are associated with lower CVD risk. Measurement of flow-mediated dilation of the brachial artery (FMD) is the gold standard for measuring endothelial function and predicts CVD risk. This study examined the effect of partially replacing SFA with MUFA from conventional canola oil and high-oleic acid canola oil on FMD. Participants (n = 31) with an elevated waist circumference plus ≥1 additional metabolic syndrome criterion completed FMD measures as part of the Canola Oil Multi-Centre Intervention Trial 2 (COMIT-2), a multi-center, double-blind, three-period crossover, controlled feeding randomized trial. Diet periods were 6 weeks, separated by ≥4-week washouts. Experimental diets were provided during all feeding periods. Diets only differed by the fatty acid profile of the oils: canola oil (CO; 17.5% energy from MUFA, 9.2% polyunsaturated fatty acids (PUFA), 6.6% SFA), high-oleic acid canola oil (HOCO; 19.1% MUFA, 7.0% PUFA, 6.4% SFA), and a control oil blend (CON; 11% MUFA, 10% PUFA, 12% SFA). Multilevel models were used to examine the effect of the diets on FMD. No significant between-diet differences were observed for average brachial artery diameter (CO: 6.70 ± 0.15 mm, HOCO: 6.57 ± 0.15 mm, CON: 6.73 ± 0.14 mm; p = 0.72), peak brachial artery diameter (CO: 7.11 ± 0.15 mm, HOCO: 7.02 ± 0.15 mm, CON: 6.41 ± 0.48 mm; p = 0.80), or FMD (CO: 6.32 ± 0.51%, HOCO: 6.96 ± 0.49%, CON: 6.41 ± 0.48%; p = 0.81). Partial replacement of SFA with MUFA from CO and HOCO had no effect on FMD in participants with or at risk of metabolic syndrome.
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Affiliation(s)
- Kristin M. Davis
- Department of Biobehavioral Health, Pennsylvania State University, State College, PA 16802, USA
| | - Kristina S. Petersen
- Department of Nutritional Sciences, Pennsylvania State University, State College, PA 16802, USA
- Department of Nutritional Sciences, Texas Tech University, Lubbock, TX 79409, USA
| | - Kate J. Bowen
- Department of Nutritional Sciences, Pennsylvania State University, State College, PA 16802, USA
| | - Peter J. H. Jones
- Richardson Centre for Functional Foods and Nutraceuticals, University of Manitoba, Winnipeg, MB R3T 6C5, Canada
| | - Carla G. Taylor
- Department of Food and Human Nutritional Sciences, University of Manitoba, Winnipeg, MB R3T 2N2, Canada
- Department of Physiology and Pathophysiology, University of Manitoba, Winnipeg, MB R3E 3P5, Canada
- The Canadian Centre for Agri-Food Research in Health and Medicine, St. Boniface Hospital, Winnipeg, MB R2H 2A6, Canada
| | - Peter Zahradka
- Department of Food and Human Nutritional Sciences, University of Manitoba, Winnipeg, MB R3T 2N2, Canada
- Department of Physiology and Pathophysiology, University of Manitoba, Winnipeg, MB R3E 3P5, Canada
- The Canadian Centre for Agri-Food Research in Health and Medicine, St. Boniface Hospital, Winnipeg, MB R2H 2A6, Canada
| | - Karen Letourneau
- The Canadian Centre for Agri-Food Research in Health and Medicine, St. Boniface Hospital, Winnipeg, MB R2H 2A6, Canada
| | - Danielle Perera
- The Canadian Centre for Agri-Food Research in Health and Medicine, St. Boniface Hospital, Winnipeg, MB R2H 2A6, Canada
| | - Angela Wilson
- The Canadian Centre for Agri-Food Research in Health and Medicine, St. Boniface Hospital, Winnipeg, MB R2H 2A6, Canada
| | - Paul R. Wagner
- Department of Biobehavioral Health, Pennsylvania State University, State College, PA 16802, USA
| | - Penny M. Kris-Etherton
- Department of Nutritional Sciences, Pennsylvania State University, State College, PA 16802, USA
- Correspondence:
| | - Sheila G. West
- Department of Biobehavioral Health, Pennsylvania State University, State College, PA 16802, USA
- Department of Nutritional Sciences, Pennsylvania State University, State College, PA 16802, USA
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White Wine—Induced Endothelium-Dependent Vasorelaxation in Sprague-Dawley Rats. Antioxidants (Basel) 2022; 11:antiox11050944. [PMID: 35624811 PMCID: PMC9137674 DOI: 10.3390/antiox11050944] [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: 04/14/2022] [Revised: 05/06/2022] [Accepted: 05/09/2022] [Indexed: 11/16/2022] Open
Abstract
The vasodilatory activity and polyphenolic content of commercially available white wine is low compared to red wines. This study assessed the vasodilator potential of white wines produced by four different fermentation processes: (1) white wine produced by the standard procedure; (2) grapes left to macerate completely for 30 days; (3) grapes left to macerate up to half of unfermented sugar; and (4) wine produced by cooling the must. All tested wine samples were analyzed for their phenolic content, antioxidant capacity, and ethanol content. Vasodilation was examined in the norepinephrine pre-contracted isolated rat aortas of male Sprague-Dawley rats randomly exposed to cumulative concentrations (0.1‰ to 8‰ final dilutions in organ baths) of each of the tested wine samples with or without quercetin and/or gallic acid supplementation, in the absence/presence of NOS inhibitor L-NAME. Standard procedure and the procedure involving must cooling gives wine with lower phenolic content, antioxidant capacity, and lower vasodilator potential, respectively. L-NAME inhibited vasodilation to all wine samples. Quercetin with or without gallic acid supplementation restored vasodilation. Results show that vasodilation to white wine is NO-dependent and suggest the possibility of increasing the antioxidant capacity and vasodilatory potential of white wine using different production procedures, depending on quercetin content.
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8
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Ferentinos P, Tsakirides C, Swainson M, Davison A, Martyn-St James M, Ispoglou T. The impact of different forms of exercise on circulating endothelial progenitor cells in cardiovascular and metabolic disease. Eur J Appl Physiol 2022. [PMID: 35022875 DOI: 10.1007/s00421-021-04876-1.pmid:35022875;pmcid:pmc8927049] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/26/2023]
Abstract
UNLABELLED Circulating endothelial progenitor cells (EPCs) contribute to vascular repair and their monitoring could have prognostic clinical value. Exercise is often prescribed for the management of cardiometabolic diseases, however, it is not fully understood how it regulates EPCs. OBJECTIVES to systematically examine the acute and chronic effects of different exercise modalities on circulating EPCs in patients with cardiovascular and metabolic disease. METHODS Preferred Reporting Items for Systematic Reviews and Meta-analyses guidelines were followed. RESULTS six electronic databases and reference lists of eligible studies were searched to April 2021. Thirty-six trials met the inclusion criteria including 1731 participants. Acute trials: in chronic heart failure (CHF), EPC mobilisation was acutely increased after high intensity interval or moderate intensity continuous exercise training, while findings were inconclusive after a cardiopulmonary cycling exercise test. Maximal exercise tests acutely increased EPCs in ischaemic or revascularized coronary artery disease (CAD) patients. In peripheral arterial disease (PAD), EPC levels increased up to 24 h post-exercise. In patients with compromised metabolic health, EPC mobilisation was blunted after a single exercise session. Chronic trials: in CHF and acute coronary syndrome, moderate intensity continuous protocols, with or without resistance exercise or calisthenics, increased EPCs irrespective of EPC identification phenotype. Findings were equivocal in CAD regardless of exercise mode, while in severe PAD disease EPCs increased. High intensity interval training increased EPCs in hypertensive metabolic syndrome and heart failure reduced ejection fraction. CONCLUSION the clinical condition and exercise modality influence the degree of EPC mobilisation and magnitude of EPC increases in the long term.
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Affiliation(s)
| | | | - Michelle Swainson
- Lancaster Medical School, Faculty of Health and Medicine, Lancaster University, Lancaster, UK
| | - Adam Davison
- Flow Cytometry Facility, Leeds Institute of Cancer and Pathology St James's University Hospital, University of Leeds, Leeds, UK
- Cytec Biosciences B.V, Amsterdam, The Netherlands
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Ferentinos P, Tsakirides C, Swainson M, Davison A, Martyn-St James M, Ispoglou T. The impact of different forms of exercise on circulating endothelial progenitor cells in cardiovascular and metabolic disease. Eur J Appl Physiol 2022; 122:815-860. [PMID: 35022875 PMCID: PMC8927049 DOI: 10.1007/s00421-021-04876-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Accepted: 12/14/2021] [Indexed: 12/19/2022]
Abstract
Circulating endothelial progenitor cells (EPCs) contribute to vascular repair and their monitoring could have prognostic clinical value. Exercise is often prescribed for the management of cardiometabolic diseases, however, it is not fully understood how it regulates EPCs. OBJECTIVES to systematically examine the acute and chronic effects of different exercise modalities on circulating EPCs in patients with cardiovascular and metabolic disease. METHODS Preferred Reporting Items for Systematic Reviews and Meta-analyses guidelines were followed. RESULTS six electronic databases and reference lists of eligible studies were searched to April 2021. Thirty-six trials met the inclusion criteria including 1731 participants. Acute trials: in chronic heart failure (CHF), EPC mobilisation was acutely increased after high intensity interval or moderate intensity continuous exercise training, while findings were inconclusive after a cardiopulmonary cycling exercise test. Maximal exercise tests acutely increased EPCs in ischaemic or revascularized coronary artery disease (CAD) patients. In peripheral arterial disease (PAD), EPC levels increased up to 24 h post-exercise. In patients with compromised metabolic health, EPC mobilisation was blunted after a single exercise session. Chronic trials: in CHF and acute coronary syndrome, moderate intensity continuous protocols, with or without resistance exercise or calisthenics, increased EPCs irrespective of EPC identification phenotype. Findings were equivocal in CAD regardless of exercise mode, while in severe PAD disease EPCs increased. High intensity interval training increased EPCs in hypertensive metabolic syndrome and heart failure reduced ejection fraction. CONCLUSION the clinical condition and exercise modality influence the degree of EPC mobilisation and magnitude of EPC increases in the long term.
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Affiliation(s)
| | | | - Michelle Swainson
- Lancaster Medical School, Faculty of Health and Medicine, Lancaster University, Lancaster, UK
| | - Adam Davison
- Flow Cytometry Facility, Leeds Institute of Cancer and Pathology St James's University Hospital, University of Leeds, Leeds, UK
- Cytec Biosciences B.V, Amsterdam, The Netherlands
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Nabeel PM, Chandran DS, Kaur P, Thanikachalam S, Sivaprakasam M, Joseph J. Association of incremental pulse wave velocity with cardiometabolic risk factors. Sci Rep 2021; 11:15413. [PMID: 34326391 PMCID: PMC8322136 DOI: 10.1038/s41598-021-94723-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Accepted: 07/06/2021] [Indexed: 02/07/2023] Open
Abstract
We investigate the association of incremental pulse wave velocity (ΔC; the change in pulse wave velocity over a cardiac cycle) with cardiometabolic risk factors and report the first and (currently) the largest population-level data. In a cross-sectional study performed in a cohort of 1373 general population participants, ΔC was measured using clinically validated ARTSENS devices. There were 455 participants in the metabolic syndrome (MetS) group whose average ΔC was ~ 28.4% higher than that of the non-metabolic syndrome (Non-MetS) group. Females with MetS showed ~ 10.9% elevated average ΔC compared to males of the Non-MetS group. As the number of risk factors increased from 0 to 5, the average ΔC escalated by ~ 55% (1.50 ± 0.52 m/s to 2.33 ± 0.91 m/s). A gradual increase in average ΔC was observed across each decade from the younger (ΔC = 1.53 ± 0.54 m/s) to geriatric (ΔC = 2.34 ± 0.59 m/s) populations. There was also a significant difference in ΔC among the blood pressure categories. Most importantly, ΔC ≥ 1.81 m/s predicted a constellation of ≥ 3 risks with AUC = 0.615, OR = 2.309, and RR = 1.703. All statistical trends remained significant, even after adjusting for covariates. The study provides initial evidence for the potential use of ΔC as a tool for the early detection and screening of vascular dysfunction, which opens up avenues for active clinical and epidemiological studies. Further investigations are encouraged to confirm and establish the causative mechanism for the reported associations.
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Affiliation(s)
- P. M. Nabeel
- grid.417969.40000 0001 2315 1926Healthcare Technology Innovation Centre, IIT Madras, Chennai, 600113 India
| | - Dinu S. Chandran
- grid.413618.90000 0004 1767 6103Department of Physiology, All India Institute of Medical Sciences, New Delhi, 110029 India
| | - Prabhdeep Kaur
- grid.419587.60000 0004 1767 6269National Institute of Epidemiology, Indian Council of Medical Research, Chennai, 600077 India
| | - Sadagopan Thanikachalam
- grid.412734.70000 0001 1863 5125Sri Ramachandra Institute of Higher Education and Research, Chennai, 600116 India
| | - Mohanasankar Sivaprakasam
- grid.417969.40000 0001 2315 1926Healthcare Technology Innovation Centre, IIT Madras, Chennai, 600113 India ,grid.417969.40000 0001 2315 1926Department of Electrical Engineering, Indian Institute of Technology Madras, Chennai, 600036 India
| | - Jayaraj Joseph
- grid.417969.40000 0001 2315 1926Department of Electrical Engineering, Indian Institute of Technology Madras, Chennai, 600036 India
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Lachaux M, Soulié M, Hamzaoui M, Bailly A, Nicol L, Rémy‐Jouet I, Renet S, Vendeville C, Gluais‐Dagorn P, Hallakou‐Bozec S, Monteil C, Richard V, Mulder P. Short-and long-term administration of imeglimin counters cardiorenal dysfunction in a rat model of metabolic syndrome. Endocrinol Diabetes Metab 2020; 3:e00128. [PMID: 32704553 PMCID: PMC7375119 DOI: 10.1002/edm2.128] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Revised: 03/06/2020] [Accepted: 03/07/2020] [Indexed: 12/27/2022] Open
Abstract
INTRODUCTION Imeglimin, a glucose-lowering agent targeting mitochondrial bioenergetics, decreases reactive oxygen species (ROS) overproduction and improves glucose homeostasis. We investigated whether this is associated with protective effects on metabolic syndrome-related left ventricular (LV) and vascular dysfunctions. METHODS We used Zucker fa/fa rats to assess the effects on LV function, LV tissue perfusion, LV oxidative stress and vascular function induced by imeglimin administered orally for 9 or 90 days at a dose of 150 mg/kg twice daily. RESULTS Compared to untreated animals, 9- and 90-day imeglimin treatment decreased LV end-diastolic pressure and LV end-diastolic pressure-volume relation, increased LV tissue perfusion and decreased LV ROS production. Simultaneously, imeglimin restored acetylcholine-mediated coronary relaxation and mesenteric flow-mediated dilation. One hour after imeglimin administration, when glucose plasma levels were not yet modified, imeglimin reduced LV mitochondrial ROS production and improved LV function. Ninety-day imeglimin treatment reduced related LV and kidney fibrosis and improved kidney function. CONCLUSION In a rat model, mimicking Human metabolic syndrome, imeglimin immediately countered metabolic syndrome-related cardiac diastolic and vascular dysfunction by reducing oxidative stress/increased NO bioavailability and improving myocardial perfusion and after 90-day treatment myocardial and kidney structure, effects that are, at least in part, independent from glucose control.
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Affiliation(s)
| | | | | | - Anaëlle Bailly
- UNIROUENInserm U1096FHU‐REMOD‐VHFNormandie UnivRouenFrance
| | - Lionel Nicol
- UNIROUENInserm U1096FHU‐REMOD‐VHFNormandie UnivRouenFrance
| | | | - Sylvanie Renet
- UNIROUENInserm U1096FHU‐REMOD‐VHFNormandie UnivRouenFrance
| | | | | | | | | | | | - Paul Mulder
- UNIROUENInserm U1096FHU‐REMOD‐VHFNormandie UnivRouenFrance
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12
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COMT Val158Met Polymorphism, Cardiometabolic Risk, and Nadir CD4 Synergistically Increase Risk of Neurocognitive Impairment in Men Living With HIV. J Acquir Immune Defic Syndr 2020; 81:e148-e157. [PMID: 31107306 DOI: 10.1097/qai.0000000000002083] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
OBJECTIVE The Val allele of the Val158Met single-nucleotide polymorphism of the catechol-o-methyltransferase gene (COMT) results in faster metabolism and reduced bioavailability of dopamine (DA). Among persons living with HIV, Val carriers display neurocognitive deficits relative to Met carriers, presumably due to exacerbation of HIV-related depletion of DA. COMT may also impact neurocognition by modulating cardiometabolic function, which is often dysregulated among persons living with HIV. We examined the interaction of COMT, cardiometabolic risk, and nadir CD4 on neurocognitive impairment (NCI) among HIV+ men. METHODS Three hundred twenty-nine HIV+ men underwent COMT genotyping and neurocognitive and neuromedical assessments. Cohort-standardized z scores for body mass index, systolic blood pressure, glucose, triglycerides, and high-density lipoprotein cholesterol were averaged to derive a cardiometabolic risk score (CMRS). NCI was defined as demographically adjusted global deficit score of ≥0.5. Logistic regression modeled NCI as a function of COMT, CMRS, and their interaction, covarying for estimated premorbid function, race/ethnicity, and HIV-specific characteristics. Follow-up analysis included the 3-way interaction of COMT, CMRS, and nadir CD4. RESULTS Genotypes were 81 (24.6%) Met/Met, 147 (44.7%) Val/Met, and 101 (30.7%) Val/Val. COMT interacted with CMRS (P = 0.02) such that higher CMRS increased risk of NCI among Val/Val [odds ratio (OR) = 2.13, P < 0.01], but not Val/Met (OR = 0.93, P > 0.05) or Met/Met (OR = 0.92, P > 0.05) carriers. Among Val/Val, nadir CD4 moderated the effect of CMRS (P < 0.01) such that higher CMRS increased likelihood of NCI only when nadir CD4 <180. DISCUSSION Results suggest a tripartite model by which genetically driven low DA reserve, cardiometabolic dysfunction, and historical immunosuppression synergistically enhance risk of NCI among HIV+ men, possibly due to neuroinflammation and oxidative stress.
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Amano T, Iwamoto T, Sato Y, Imao T, Earle C. The efficacy and safety of short-acting testosterone ointment (Glowmin) for late-onset hypogonadism in accordance with testosterone circadian rhythm. Aging Male 2018; 21:170-175. [PMID: 29734846 DOI: 10.1080/13685538.2018.1471129] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/17/2022] Open
Abstract
INTRODUCTION It is well known that there is a reduction of circadian rhythm in blood testosterone levels with aging. Our previous report revealed that 3 mg of short-acting testosterone ointment (Glowmin: GL) elevated serum testosterone levels to within the physiological range for 4-6 h. The aim of this study was to clarify the clinical efficacy and safety of GL used topically once every morning, to enhance the circadian rhythm of testosterone, for late-onset hypogonadism (LOH). METHODS A total of 61 LOH patients received 3 mg of GL topically once a day in the morning on scrotal skin for 24 weeks. The clinical efficacy of GL was evaluated by the aging males symptoms (AMS) scale, and blood sampling tests were measured before and after GL treatment. RESULTS Mean patients age was 55.3 ± 9.2 years old. Total AMS scores at 4, 12, and 24 weeks after GL treatments significantly decreased. The results of sub-analysis of AMS, including psychological, physical, and sexual factors also significantly improved after GL treatments. No severe adverse reactions or abnormal laboratory data were reported. CONCLUSIONS This study shows that TRT for LOH with once daily GL treatment supports testosterone circadian rhythm and should be considered to be an effective and safe therapy for LOH.
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Affiliation(s)
| | - Teruaki Iwamoto
- b Division of Male Infertility Center for Human Reproduction , International University of Health and Welfare, Sanno Hospital , Tokyo , Japan
| | | | - Tetsuya Imao
- a Urology , Nagano Red Cross Hospital , Nagano , Japan
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Abd El Aziz R, Fawzy MW, Khalil N, Abdel Atty S, Sabra Z. Vascular affection in relation to oxidative DNA damage in metabolic syndrome. Ther Adv Endocrinol Metab 2018; 9:43-51. [PMID: 29387333 PMCID: PMC5784468 DOI: 10.1177/2042018817750823] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/24/2017] [Accepted: 11/28/2017] [Indexed: 02/06/2023] Open
Abstract
INTRODUCTION Obesity has become an important issue affecting both males and females. Obesity is now regarded as an independent risk factor for atherosclerosis-related diseases. Metabolic syndrome is associated with increased risk for development of cardiovascular disease. Urinary 8-oxo-7,8-dihydro-2'-deoxyguanosine concentration has been used to express oxidation status. METHODS Twenty-seven obese patients with metabolic syndrome, 25 obese patients without metabolic syndrome and 31 healthy subjects were included in our study. They were subjected to full history and clinical examination; fasting blood sugar (FBS), 2 hour post prandial blood sugar (2HPP), lipid profile, urinary 8-oxo-7,8-dihydro-2'-deoxyguanosine and carotid duplex, A/B index and tibial diameters were all assessed. RESULTS There was a statistically significant difference (p = 0.027) in diameter of the right anterior tibial artery among the studied groups, with decreased diameter of the right anterior tibial artery in obese patients with metabolic syndrome compared to those without metabolic syndrome; the ankle brachial index revealed a lower index in obese patients with metabolic syndrome compared to those without metabolic syndrome. There was a statistically insignificant difference (p = 0.668) in the 8-oxodG in the studied groups. In obese patients with metabolic syndrome there was a positive correlation between 8-oxodG and total cholesterol and LDL. CONCLUSION Urinary 8-oxodG is correlated to total cholesterol and LDL in obese patients with metabolic syndrome; signifying its role in the mechanism of dyslipidemia in those patients. Our study highlights the importance of anterior tibial artery diameter measurement and ankle brachial index as an early marker of atherosclerosis, and how it may be an earlier marker than carotid intima-media thickness.
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Shearer GC, Borkowski K, Puumala SL, Harris WS, Pedersen TL, Newman JW. Abnormal lipoprotein oxylipins in metabolic syndrome and partial correction by omega-3 fatty acids. Prostaglandins Leukot Essent Fatty Acids 2018; 128:1-10. [PMID: 29413356 DOI: 10.1016/j.plefa.2017.10.006] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/02/2017] [Revised: 10/10/2017] [Accepted: 10/19/2017] [Indexed: 12/31/2022]
Abstract
Metabolic syndrome (MetSyn) is characterized by chronic inflammation which mediates the associated high risk for cardiovascular and other diseases. Oxylipins are a superclass of lipid mediators with potent bioactivities in inflammation, vascular biology, and more. While their role as locally produced agents is appreciated, most oxylipins in plasma are found in lipoproteins suggesting defective regulation of inflammation could be mediated by the elevated VLDL and low HDL levels characteristic of MetSyn. Our objective was to compare the oxylipin composition of VLDL, LDL, and HDL in 14 optimally healthy individuals and 31 MetSyn patients, and then to determine the effects of treating MetSyn subjects with 4g/day of prescription omega-3 fatty acids (P-OM3) on lipoprotein oxylipin profiles. We compared oxylipin compositions of healthy (14) and MetSyn (31) subjects followed by randomization and assignment to 4g/d P-OM3 for 16 weeks using LC/MS/MS. Compared to healthy subjects, MetSyn is characterized by abnormalities of (1) pro-inflammatory, arachidonate-derived oxylipins from the lipoxygenase pathway in HDL; and (2) oxylipins mostly not derived from arachidonate in VLDL. P-OM3 treatment corrected many components of these abnormalities, reducing the burden of inflammatory mediators within peripherally circulating lipoproteins that could interfere with, or enhance, local effectors of inflammatory stress. We conclude that MetSyn is associated with a disruption of lipoprotein oxylipin patterns consistent with greater inflammatory stress, and the partial correction of these dysoxylipinemias by treatment with omega-3 fatty acids could explain some of their beneficial effects.
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Affiliation(s)
- Gregory C Shearer
- Sanford Research, Sioux Falls, SD, USA; Sanford School of Medicine, University of South Dakota, Sioux Falls, SD, USA; The Pennsylvania State University, Department of Nutritional Sciences, University Park, PA, USA.
| | - Kamil Borkowski
- The Pennsylvania State University, Department of Nutritional Sciences, University Park, PA, USA; West Coast Metabolomics Center, UC Davis Genome Center, University of California Davis, CA, USA
| | | | - William S Harris
- Sanford Research, Sioux Falls, SD, USA; Sanford School of Medicine, University of South Dakota, Sioux Falls, SD, USA
| | - Theresa L Pedersen
- Obesity and Metabolism Research Unit, USDA, ARS, Western Human Nutrition Research Center, Davis, CA, USA
| | - John W Newman
- Obesity and Metabolism Research Unit, USDA, ARS, Western Human Nutrition Research Center, Davis, CA, USA; Department of Nutrition, University of California, Davis, CA, USA
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Yuan F, Hedayat AF, Ferguson CM, Lerman A, Lerman LO, Eirin A. Mitoprotection attenuates myocardial vascular impairment in porcine metabolic syndrome. Am J Physiol Heart Circ Physiol 2017; 314:H669-H680. [PMID: 29196345 DOI: 10.1152/ajpheart.00431.2017] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Metabolic syndrome (MetS) leads to cardiac vascular injury, which may reflect in increased retention of endothelial progenitor cells (EPCs). Coronary endothelial cell (EC) mitochondria partly regulate vascular function and structure. We hypothesized that chronic mitoprotection would preserve EC mitochondria and attenuate coronary vascular injury and dysfunction in swine MetS. Pigs were studied after 16 wk of diet-induced MetS, MetS treated for the last 4 wk with the mitochondria-targeted peptide elamipretide (ELAM; 0.1 mg/kg sc once daily), and lean controls ( n = 6 each). Cardiac remodeling and function were assessed in vivo by multidetector-computed tomography (CT), and coronary artery and sinus blood samples were collected. EC mitochondrial density, apoptosis, oxidative stress, endothelial nitric oxide synthase immunoreactivity, myocardial microvascular density (three-dimensional microcomputed tomography), and coronary endothelial function (organ bath) were assessed ex vivo. The number and arteriovenous gradient of CD34+/KDR+ EPCs were calculated by FACS (a negative net gradient indicating EPC retention). MetS and MetS + ELAM pigs developed similar MetS (obesity, hyperlipidemia, insulin resistance, and hypertension). EC mitochondrial density decreased in MetS animals compared with lean animals but normalized in MetS + ELAM animals. ELAM also attenuated EC oxidative stress and apoptosis and improved subendocardial microvascular density. ELAM-induced vasculoprotection was reflected by decreased coronary retention of EPCs. ELAM also partly improved endothelial nitric oxide synthase immunoreactivity, coronary endothelial function, and vessel maturity, whereas myocardial perfusion was unaffected. Chronic mitoprotection improved coronary EC mitochondrial density and decreased vascular remodeling and dysfunction. However, additional mitochondria-independent mechanisms likely contribute to MetS-induced cardiac vascular injury. NEW & NOTEWORTHY The present study shows that chronic mitoprotection preserved coronary endothelial cell mitochondria and decreased vascular injury, subendocardial microvascular loss, coronary retention of endothelial progenitor cells, and release of markers of vascular injury. However, myocardial perfusion remained blunted, suggesting that additional mitochondria-independent mechanisms likely contribute to metabolic syndrome-induced cardiac vascular injury.
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Affiliation(s)
- Fang Yuan
- Division of Nephrology and Hypertension, Mayo Clinic , Rochester, Minnesota.,Department of Cardiology, People's Hospital of Zhengzhou University, Henan Provincial People's Hospital , Henan , People's Republic of China
| | - Ahmad F Hedayat
- Division of Nephrology and Hypertension, Mayo Clinic , Rochester, Minnesota
| | | | - Amir Lerman
- Department of Cardiovascular Diseases, Mayo Clinic , Rochester, Minnesota
| | - Lilach O Lerman
- Division of Nephrology and Hypertension, Mayo Clinic , Rochester, Minnesota.,Department of Cardiovascular Diseases, Mayo Clinic , Rochester, Minnesota
| | - Alfonso Eirin
- Division of Nephrology and Hypertension, Mayo Clinic , Rochester, Minnesota
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MiR125b-5p protects endothelial cells from apoptosis under oxidative stress. Biomed Pharmacother 2017; 95:453-460. [PMID: 28865365 DOI: 10.1016/j.biopha.2017.08.072] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2017] [Revised: 07/31/2017] [Accepted: 08/14/2017] [Indexed: 12/15/2022] Open
Abstract
Endothelial cell damage, such as apoptosis and necrosis, is involved in many cardiovascular diseases. In recent years, the crucial role of microRNAs in controlling tissue homeostasis and disease in the epithelium has become widely recognized. In the present study, human umbilical vein endothelial cells were transfected with a miRNA agomir and a SMAD4 expression vector. The expression of miR125b-5p was determined by using quantitative real-time polymerase chain reaction. Cell apoptosis and necrosis were measured with flow cytometry. The expression of SMAD4 was evaluated with Western blotting. Here, we demonstrated that the rates of apoptosis and necrosis were significantly decreased in the miR125b-5p agomir group of HUVECs under H2O2-induced oxidative stress compared with the miR125b-5p antagomir group. Further experiments revealed that the expression of SMAD4 is negatively regulated by miR125b-5p. Moreover, we identified that the rates of apoptosis and necrosis were increased when SMAD4 and miR125b-5p were both overexpressed compared with miR125b-5p overexpression alone. The present study demonstrates for the first time that the overexpression of miR125b-5p can reduce H2O2-induced oxidative damage via SMAD4, suggesting that miR125b-5p has therapeutic potential for preventing oxidative stress-related diseases.
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Clinical Significance of Arterial Stiffness and Metabolic Syndrome Scores in Vestibular Neuritis. Otol Neurotol 2017; 38:737-741. [DOI: 10.1097/mao.0000000000001352] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Sponton AC, Silva FH, Araujo HN, Valgas da Silva CP, de Moraes C, Antunes E, Zanesco A, Delbin MA. Circulating Concentrations of Adipocytokines and Their Receptors in the Isolated Corpus Cavernosum and Femoral Artery from Trained Rats on a High-Fat Diet. J Vasc Res 2017; 54:33-50. [DOI: 10.1159/000457800] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Accepted: 01/21/2017] [Indexed: 12/14/2022] Open
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Ghebre YT, Yakubov E, Wong WT, Krishnamurthy P, Sayed N, Sikora AG, Bonnen MD. Vascular Aging: Implications for Cardiovascular Disease and Therapy. TRANSLATIONAL MEDICINE (SUNNYVALE, CALIF.) 2016; 6:183. [PMID: 28932625 PMCID: PMC5602592 DOI: 10.4172/2161-1025.1000183] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
The incidence and prevalence of cardiovascular disease is highest among the elderly, in part, due to deleterious effects of advancing age on the heart and blood vessels. Aging, a known cardiovascular risk factor, is progressively associated with structural and functional changes to the vasculature including hemodynamic disturbance due to increased oxidative stress, premature cellular senescence and impairments in synthesis and/or secretion of endothelium-derived vasoactive molecules. These molecular and physiological changes lead to vessel wall stiffening and thickening, as well as other vascular complications that culminate to loss of vascular tone regulation and endothelial function. Intriguingly, the vessel wall, a biochemically active structure composed of collagen, connective tissue, smooth muscle and endothelial cells, is adversely affected by processes involved in premature or normal aging. Notably, the inner most layer of the vessel wall, the endothelium, becomes senescent and dysfunctional with advancing age. As a result, its ability to release vasoactive molecules such as acetylcholine (ACh), prostacyclin (PGI2), endothelium-derived hyperpolarizing factor (EDHF), and nitric oxide (NO) is reduced and the cellular response to these molecules is also impaired. By contrast, the vascular endothelium increases its generation and release of reactive oxygen (ROS) and nitrogen (RNS) species, vasoconstrictors such as endothelin (ET) and angiotensin (AT), and endogenous inhibitors of NO synthases (NOSs) to block NO. This skews the balance of the endothelium in favor of the release of highly tissue reactive and harmful molecules that promote DNA damage, telomere erosion, senescence, as well as stiffened and hardened vessel wall that is prone to the development of hypertension, diabetes, atherosclerosis and other cardiovascular risk factors. This Review discusses the impact of advancing age on cardiovascular health, and highlights the cellular and molecular mechanisms that underlie age-associated vascular changes. In addition, the role of pharmacological interventions in preventing or delaying age-related cardiovascular disease is discussed.
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Affiliation(s)
- Yohannes T Ghebre
- Department of Radiation Oncology, Baylor College of Medicine, Houston, Texas, USA
| | - Eduard Yakubov
- phaRNA Comprehensive RNA Technologies, Houston, Texas, USA
| | - Wing Tak Wong
- School of Life Sciences, The Chinese University of Hong Kong, Hong Kong
| | - Prasanna Krishnamurthy
- Department of Biomedical Engineering, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Nazish Sayed
- Department of Medicine, Stanford Cardiovascular Institute, Stanford University, Stanford, CA, USA
| | - Andrew G Sikora
- Department of Otolaryngology-Head and Neck Surgery, Baylor College of Medicine, Houston, Texas, USA
| | - Mark D Bonnen
- Department of Radiation Oncology, Baylor College of Medicine, Houston, Texas, USA
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Araldi E, Suárez Y. MicroRNAs as regulators of endothelial cell functions in cardiometabolic diseases. BIOCHIMICA ET BIOPHYSICA ACTA 2016; 1861:2094-2103. [PMID: 26825686 PMCID: PMC5039046 DOI: 10.1016/j.bbalip.2016.01.013] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2015] [Revised: 01/18/2016] [Accepted: 01/20/2016] [Indexed: 12/13/2022]
Abstract
Endothelial cells (ECs) provide nutrients and oxygen essential for tissue homeostasis. Metabolic imbalances and other environmental stimuli, like cytokines or low shear stress, trigger endothelial inflammation, increase permeability, compromise vascular tone, promote cell proliferation, and ultimately cause cell death. These factors contribute to EC dysfunction, which is crucial in the development of cardiometabolic diseases. microRNAs (miRNAs) are small non-coding RNAs that have important functions in the regulation of ECs. In the present review, we discuss the role of miRNAs in various aspects of EC pathology in cardiometabolic diseases like atherosclerosis, type 2 diabetes, obesity, and the metabolic syndrome, and in complication of those pathologies, like ischemia. We also discuss the potential therapeutic applications of miRNAs in promoting angiogenesis and neovascularization in tissues where the endothelium is damaged in different cardiometabolic diseases. This article is part of a Special Issue entitled: MicroRNAs and lipid/energy metabolism and related diseases edited by Carlos Fernández-Hernando and Yajaira Suárez.
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Affiliation(s)
- Elisa Araldi
- Program in Integrative Cell Signaling and Neurobiology of Metabolism, Section of Comparative Medicine, Department of Pathology and the Vascular Biology and Therapeutics Program, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Yajaira Suárez
- Program in Integrative Cell Signaling and Neurobiology of Metabolism, Section of Comparative Medicine, Department of Pathology and the Vascular Biology and Therapeutics Program, Yale University School of Medicine, New Haven, CT 06520, USA.
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12 min/week of high-intensity interval training reduces aortic reservoir pressure in individuals with metabolic syndrome. J Hypertens 2016; 34:1977-87. [DOI: 10.1097/hjh.0000000000001034] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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Dal S, Sigrist S. The Protective Effect of Antioxidants Consumption on Diabetes and Vascular Complications. Diseases 2016; 4:E24. [PMID: 28933404 PMCID: PMC5456287 DOI: 10.3390/diseases4030024] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2016] [Revised: 06/20/2016] [Accepted: 06/23/2016] [Indexed: 12/14/2022] Open
Abstract
Obesity and diabetes is generally accompanied by a chronic state of oxidative stress, disequilibrium in the redox balance, implicated in the development and progression of complications such as micro- and macro-angiopathies. Disorders in the inner layer of blood vessels, the endothelium, play an early and critical role in the development of these complications. Blunted endothelium-dependent relaxation and/or contractions are quietly associated to oxidative stress. Thus, preserving endothelial function and oxidative stress seems to be an optimization strategy in the prevention of vascular complications associated with diabetes. Diet is a major lifestyle factor that can greatly influence the incidence and the progression of type 2 diabetes and cardiovascular complications. The notion that foods not only provide basic nutrition but can also prevent diseases and ensure good health and longevity is now attained greater prominence. Some dietary and lifestyle modifications associated to antioxidative supply could be an effective prophylactic means to fight against oxidative stress in diabesity and complications. A significant benefit of phytochemicals (polyphenols in wine, grape, teas), vitamins (ascorbate, tocopherol), minerals (selenium, magnesium), and fruits and vegetables in foods is thought to be capable of scavenging free radicals, lowering the incidence of chronic diseases. In this review, we discuss the role of oxidative stress in diabetes and complications, highlight the endothelial dysfunction, and examine the impact of antioxidant foods, plants, fruits, and vegetables, currently used medication with antioxidant properties, in relation to the development and progression of diabetes and cardiovascular complications.
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Affiliation(s)
- Stéphanie Dal
- DIATHEC EA 7294 UMR Centre Européen d'Etude du Diabète (CeeD), Université de Strasbourg (UdS), boulevard René Leriche, Strasbourg 67200, France.
| | - Séverine Sigrist
- DIATHEC EA 7294 UMR Centre Européen d'Etude du Diabète (CeeD), Université de Strasbourg (UdS), boulevard René Leriche, Strasbourg 67200, France.
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Castiglione RC, Barros CMMR, Boa BCS, Bouskela E. Microcirculatory effects of zinc on fructose-fed hamsters. Nutr Metab Cardiovasc Dis 2016; 26:310-317. [PMID: 26817936 DOI: 10.1016/j.numecd.2015.11.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/27/2015] [Revised: 11/06/2015] [Accepted: 11/11/2015] [Indexed: 10/22/2022]
Abstract
BACKGROUND AND AIMS Fructose is a major dietary component directly related to vascular dysfunction and diseases such as obesity, diabetes, and hypertension. Zinc is considered a non-pharmacological alternative for treating diabetes due to its antioxidant and hyperglycemia-lowering effects in diabetic animals. Therefore, the aim of this study was to evaluate the effects of dietary zinc supplementation on the microcirculatory parameters of fructose-fed hamsters. METHODS AND RESULTS Male hamsters (Mesocricetus auratus) were fed drinking water substituted by 10% fructose solution for 60 days, whereas control animals were fed drinking water alone. Their microcirculatory function was evaluated using cheek pouch preparation, as well as their blood glucose and serum insulin levels. Their microcirculatory responses to acetylcholine (ACh, an endothelium-dependent vasodilator) and to sodium nitroprusside (SNP, an endothelium-independent vasodilator) as well as the increase in macromolecular permeability induced by 30 min of ischemia/reperfusion (I/R) were noted. Endothelium-dependent vasodilation was significantly increased in control animals with high zinc supplementation compared to the groups without zinc supplementation. Zinc was able to protect against plasma leakage induced by I/R in all control and fructose-fed groups, although the microvascular permeability was higher in animals fed drinking water substituted by 10% fructose solution compared to those fed filtered drinking water alone. CONCLUSION Our results indicate that dietary zinc supplementation can improve microvascular dysfunction by increasing endothelial-dependent dilatation and reducing the increase in macromolecular permeability induced by I/R in fructose-fed animals.
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Affiliation(s)
- R C Castiglione
- Laboratory for Clinical and Experimental Research on Vascular Biology (BioVasc), Biomedical Center, State University of Rio de Janeiro, Rio de Janeiro, RJ 20550-013, Brazil.
| | - C M M R Barros
- Laboratory for Clinical and Experimental Research on Vascular Biology (BioVasc), Biomedical Center, State University of Rio de Janeiro, Rio de Janeiro, RJ 20550-013, Brazil
| | - B C S Boa
- Laboratory for Clinical and Experimental Research on Vascular Biology (BioVasc), Biomedical Center, State University of Rio de Janeiro, Rio de Janeiro, RJ 20550-013, Brazil
| | - E Bouskela
- Laboratory for Clinical and Experimental Research on Vascular Biology (BioVasc), Biomedical Center, State University of Rio de Janeiro, Rio de Janeiro, RJ 20550-013, Brazil
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Davison K, Howe PRC. Potential implications of dose and diet for the effects of cocoa flavanols on cardiometabolic function. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2015; 63:9942-9947. [PMID: 26111215 DOI: 10.1021/acs.jafc.5b01492] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The metabolic syndrome is a pathological state whereby cardiovascular and metabolic dysfunction coexist and typically progress in a mutual feed-forward manner to further dysfunction and ultimately disease. The health and function of the vascular endothelium is integral in this phenomenon and thus represents a logical target for intervention. Consumption of foods high in cocoa flavanols has demonstrated a capacity to markedly improve endothelial function and key markers of the metabolic syndrome including blood pressure and insulin sensitivity. The typically high energy content of foods containing sufficient doses of cocoa flavanols has caused some reservations around its therapeutic use, but this is dependent upon the particulars of the food matrix used. Further to this, the food matrix appears to influence the dose response curve of cocoa flavanols, particularly on blood pressure, with dark chocolate appearing to be 8 times more effective in systolic blood pressure reduction than a cocoa powder drink for the equivalent dose of flavanol. Cocoa flavanol consumption conclusively demonstrates a positive impact on cardiometabolic function; however, more research is needed to understand how best to consume it to maximize the benefit while avoiding excessive fat and sugar consumption.
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Affiliation(s)
- Kade Davison
- School of Health Sciences, University of South Australia , Frome Road, Adelaide, South Australia, Australia 5000
| | - Peter R C Howe
- School of Biomedical Sciences and Pharmacy, University of Newcastle , Newcastle, New South Wales, Australia 2308
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Vascular diseases investigated ex vivo by using Raman, FT-IR and complementary methods. Pharmacol Rep 2015; 67:744-50. [DOI: 10.1016/j.pharep.2015.05.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2015] [Revised: 04/30/2015] [Accepted: 05/05/2015] [Indexed: 11/20/2022]
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Kshirsagar RP, Kothamasu MV, Patil MA, Reddy GB, Kumar BD, Diwan PV. Geranium oil ameliorates endothelial dysfunction in high fat high sucrose diet induced metabolic complications in rats. J Funct Foods 2015. [DOI: 10.1016/j.jff.2015.03.029] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
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Ramos JS, Dalleck LC, Tjonna AE, Beetham KS, Coombes JS. The Impact of High-Intensity Interval Training Versus Moderate-Intensity Continuous Training on Vascular Function: a Systematic Review and Meta-Analysis. Sports Med 2015; 45:679-92. [DOI: 10.1007/s40279-015-0321-z] [Citation(s) in RCA: 290] [Impact Index Per Article: 32.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Joris PJ, Zeegers MP, Mensink RP. Weight loss improves fasting flow-mediated vasodilation in adults: a meta-analysis of intervention studies. Atherosclerosis 2014; 239:21-30. [PMID: 25568949 DOI: 10.1016/j.atherosclerosis.2014.12.056] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/29/2014] [Revised: 11/07/2014] [Accepted: 12/09/2014] [Indexed: 02/07/2023]
Abstract
BACKGROUND Obesity is associated with vascular endothelial dysfunction. Effects of weight loss on endothelial function are however not clear. Therefore, we performed a meta-analysis to quantify effects of weight loss on flow-mediated vasodilation (FMD) of the brachial artery, a measurement of endothelial function. METHODS Studies with experimental (RCTs) and quasi-experimental designs published before June 2014 were identified by a systematic search. Changes in FMD were defined as the difference between measurements before and after the study. For RCTs, changes were corrected for those in the no-weight loss control group. Summary estimates of weighted mean differences (WMDs) in FMD and 95% confidence intervals (CIs) were calculated using random-effect meta-analyses. The impact of subject characteristics, type of weight-loss treatment, and dietary composition on changes in FMD was also investigated. RESULTS Four RCTs involving 265 subjects were included. Weight loss increased FMD vs. control by 3.29% (95% CI: 0.98-5.59%; P = 0.005; mean weight loss: 8.6 kg). A total of 1517 subjects participated in 33 studies with 49 relevant study arms. It was estimated that each 10 kg decrease in body weight increased fasting FMD by 1.11% (95% CI: 0.47-1.76%; P = 0.001). Effects were more pronounced when participants had coexisting obesity-related morbidities. Also, effects may be larger when subjects received low-fat diets or weight-reduction regimens including exercise therapy or weight-loss medication. CONCLUSION Weight loss significantly improves fasting FMD in adults, which is a risk marker for cardiovascular disease. Effects may depend on subject characteristics, type of weight-loss treatment, and dietary composition.
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Affiliation(s)
- Peter J Joris
- Department of Human Biology, NUTRIM School for Nutrition, Toxicology and Metabolism, Maastricht University Medical Center, Maastricht, The Netherlands; Top Institute of Food and Nutrition (TIFN), Wageningen, The Netherlands.
| | - Maurice P Zeegers
- Department of Complex Genetics, NUTRIM School for Nutrition, Toxicology and Metabolism, Maastricht University Medical Center, Maastricht, The Netherlands.
| | - Ronald P Mensink
- Department of Human Biology, NUTRIM School for Nutrition, Toxicology and Metabolism, Maastricht University Medical Center, Maastricht, The Netherlands; Top Institute of Food and Nutrition (TIFN), Wageningen, The Netherlands.
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The effects of vitamin E and omega-3 PUFAs on endothelial function among adolescents with metabolic syndrome. BIOMED RESEARCH INTERNATIONAL 2014; 2014:906019. [PMID: 25136638 PMCID: PMC4127288 DOI: 10.1155/2014/906019] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 02/21/2014] [Accepted: 06/20/2014] [Indexed: 01/17/2023]
Abstract
Aim. The present study aims to explore the effects of vitamin E and omega-3 on endothelial function indicators among adolescents with metabolic syndrome. Method. In a randomized, double blind, and placebo-controlled trial, 90 young individuals, aged 10 to 18 years, with metabolic syndrome were randomly assigned to receive either vitamin E tablets (400 IU/day) or omega-3 tablets (2.4 gr/day) or placebo. For assessing endothelial functional state, the serum level of vascular endothelial growth factor (VEGF) was measured by ELISA test. Results. The use of omega-3 supplementation for eight weeks led to significant increase in serum HDL level compared with the group treated with vitamin E or placebo group. In this regard, no significant correlations were found between the change in VEGF and baseline levels of other markers including anthropometric indices and serum lipids. Omega-3 could significantly reduce VEGF with the presence of other baseline variables (Beta = −12.55; P = 0.012). Conclusion. The administration of omega-3 can effectively improve endothelial function in adolescents with metabolic syndrome by reducing the level of serum VEGF, as a major index for atherosclerosis progression and endothelial destabilization. Omega-3 can be proposed as a VEGF antagonist for improving endothelial function in metabolic syndrome. The clinical implications of our findings should be assessed in future studies.
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El Safoury OS, Ezzat M, Abdelhamid MF, Shoukry N, Badawy E. The Evaluation of the Impact of Age, Skin Tags, Metabolic Syndrome, Body Mass Index, and Smoking on Homocysteine, Endothelin-1, High-sensitive C-reactive Protein, and on the Heart. Indian J Dermatol 2013; 58:326. [PMID: 23919019 PMCID: PMC3726896 DOI: 10.4103/0019-5154.113947] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
BACKGROUND Skin tags (STs) are small, pedunculated skin-colored or brown papules that occur around any site where skin folds occur. The literature is short of comprehensive and controlled clinical studies aimed to evaluate the atherogenic risk factors in patients with STs. AIM OF WORK The aim of this study is to evaluate the impact of age, STs, metabolic syndrome (METs), body mass index (BMI), and smoking on homocysteine (Hcy), endothelin-1 (ET-1), high-sensitive C-reactive protein (Hs-CRP), and on cardiovascular diseases. MATERIALS AND METHODS This study included 30 cardiac patients with STs, 30 non-cardiac patients with STs, and 30 healthy controls with neither heart disease nor STs. History of smoking, measurement of height, weight, BMI, waist circumference (WC), blood pressure, STs number, color, acanthosis nigricans, estimation of serum level of fasting glucose, triglycerides (TGs), cholesterol, high-dense lipoproteins (HDL), Hcy, ET-1, Hs-CRP, and the presence of the METs were elicited in the three groups. RESULTS Regarding the Hcy, ET-1, and Hs-CRP, the cardiac-STs group showed the highest levels and the control group showed the least (P < 0.001). The percents of patients with METs were 56.7% in the cardiac-STs, 40% in the non-cardiac-STs, and 0% in the control group (P < 0.001). Mean BMI exceeded the limit of obesity in the cardiac-STs group (30.9 ± 3.9) and the non-cardiac-STs group (32.6 ± 6) and was normal in the control group (24.7 ± 2.8). Hyperpigmented STs were present in 66.7% of the cardiac-STs group. Multivariate regression analysis for the independent effectors on Hcy level were the presence of STs (P < 0.001), METs (P = 0.001), and BMI (P = 0.024). Regarding ET-1, the effectors were the presence of STs and METs (P = 0.032). For Hs-CRP, effectors were the presence of STs (P < 0.001) and smoking (P = 0.040). Multivariate logistic regression of the predictors of cardiac disease showed that the independent predictors of the occurrence of cardiac disease were BMI (P < 0.001), STs (P = 0.002), and METs (P = 0.037). CONCLUSION STs may act as a physical sign of underlying raised cardiac atherogenic factors. This may indicates an ongoing risk on coronary circulation which may indicate further corrective action, hopefully early enough. The association of ST with obesity and METs represents a Bermuda Triangle that act against the heart.
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Reference levels of blood mercury and association with metabolic syndrome in Korean adults. Int Arch Occup Environ Health 2013; 87:501-13. [PMID: 23824410 DOI: 10.1007/s00420-013-0891-8] [Citation(s) in RCA: 69] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2012] [Accepted: 06/20/2013] [Indexed: 10/26/2022]
Abstract
PURPOSE Mercury (Hg) is a nonessential and toxic metal that is widely distributed in the environment. This study was performed to estimate the representative blood Hg level, to determine the contributing factors to Hg exposure, and to analyze the association of blood Hg with metabolic syndrome in Korean adults. METHODS Mercury exposure is assessed by total Hg concentration in blood. A total of 2,114 healthy adults who have not been exposed to Hg occupationally were sampled by the multistaged, sex-, and age-stratified probability method. Information was collected regarding the subjects' demographic characteristics, lifestyles, and past medical history. The participants then underwent physical examination and blood sampling. RESULTS The geometric mean concentration of Hg in whole blood was 3.90 μg/L, which was significantly influenced by sex, age, smoking, alcoholic consumption, residence area, and seafood intake after adjustment for confounders. Significant increases in body mass index, waist circumference, diastolic blood pressure, total cholesterol, and triglyceride were observed according to the blood Hg levels after adjustment for covariates. Also, Hg exposure was significantly associated with metabolic syndrome and their components such as obesity and increased fasting glucose. CONCLUSION The blood Hg level in Korean adults is higher than that in USA and other Western countries, while it is similar to or lower than that in other Asian countries. The blood Hg level is influenced by sociodemographic factors and individual lifestyles including dietary habits. Furthermore, blood Hg is associated with metabolic syndrome, in which Hg exposure may play a role as a possible risk factor for cardiovascular diseases.
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Kagota S, Maruyama K, Tada Y, Fukushima K, Umetani K, Wakuda H, Shinozuka K. Chronic oxidative-nitrosative stress impairs coronary vasodilation in metabolic syndrome model rats. Microvasc Res 2013; 88:70-8. [PMID: 23571030 DOI: 10.1016/j.mvr.2013.04.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2012] [Revised: 03/02/2013] [Accepted: 04/01/2013] [Indexed: 01/22/2023]
Abstract
Metabolic syndrome (MetS) is a combination of clinical disorders that together increase the risk for cardiovascular disease and diabetes. SHRSP.Z-Lepr(fa)/IzmDmcr (SHRSP.ZF) rats with MetS show impaired nitric oxide-mediated relaxation in coronary and mesenteric arteries, and angiotensin II receptor type 1 blockers protect against dysfunction and oxidative-nitrosative stress independently of metabolic effects. We hypothesize that superoxide contributes to functional deterioration in SHRSP.ZF rats. To test our hypothesis, we studied effects of treatment with tempol, a membrane-permeable radical scavenger, on impaired vasodilation in SHRSP.ZF rats. Tempol did not alter body weight, high blood pressure, or metabolic abnormalities, but prevented impairment of acetylcholine-induced and nitroprusside-induced vasodilation in the coronary and mesenteric arteries. Furthermore, tempol reduced the levels of serum thiobarbituric acid reactive substance (TBARS) and 3-nitrotyrosine content in mesenteric arteries. Systemic administration of tempol elevated the expression of soluble guanylate cyclase (sGC) above basal levels in mesenteric arteries of SHRSP.ZF rats. However, acute treatment with tempol or ebselen, a peroxynitrite scavenger, did not ameliorate impaired relaxation of isolated mesenteric arteries. No nitration of tyrosine residues in sGC was observed; however, sGC mRNA expression levels in the arteries of SHRSP.ZF rats were lower than those in the arteries of Wistar-Kyoto rats. Levels of Thr(496)- and Ser(1177)-phosphorylated endothelial nitric oxide synthase (eNOS) were lower in arteries of SHRSP.ZF rats, and acetylcholine decreased Thr(496)-phosphorylated eNOS levels. These results indicated that prolonged superoxide production, leading to oxidative-nitrosative stress, was associated with impaired vasodilation in SHRSP.ZF rats with MetS. Down-regulated sGC expression may be linked to dysfunction, while reduced NO bioavailability/eNOS activity and modified sGC activity due to superoxide production were excluded as pivotal mechanisms.
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Affiliation(s)
- Satomi Kagota
- Department of Pharmacology, School of Pharmaceutical Sciences, Mukogawa Women's University, Nishinomiya, Japan.
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Justo ML, Candiracci M, Dantas AP, de Sotomayor MA, Parrado J, Vila E, Herrera MD, Rodriguez-Rodriguez R. Rice bran enzymatic extract restores endothelial function and vascular contractility in obese rats by reducing vascular inflammation and oxidative stress. J Nutr Biochem 2013; 24:1453-61. [PMID: 23465593 DOI: 10.1016/j.jnutbio.2012.12.004] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2012] [Revised: 11/28/2012] [Accepted: 12/10/2012] [Indexed: 11/17/2022]
Abstract
BACKGROUND Rice bran enzymatic extract (RBEE) used in this study has shown beneficial activities against dyslipidemia, hyperinsulinemia and hypertension. Our aim was to investigate the effects of a diet supplemented with RBEE in vascular impairment developed in obese Zucker rats and to evaluate the main mechanisms mediating this action. METHODS AND RESULTS Obese Zucker rats were fed a 1% and 5% RBEE-supplemented diet (O1% and O5%). Obese and their lean littermates fed a standard diet were used as controls (OC and LC, respectively). Vascular function was evaluated in aortic rings in organ baths. The role of nitric oxide (NO) was investigated by using NO synthase (NOS) inhibitors. Aortic expression of endothelial NOS (eNOS), inducible NOS (iNOS), tumor necrosis factor (TNF)-α and nicotinamide adenine dinucleotide phosphate (NADPH) oxidase subunits and superoxide production in arterial wall were determined. Endothelial dysfunction and vascular hyperreactivity to phenylephrine in obese rats were ameliorated by RBEE treatment, particularly with 1% RBEE. Up-regulation of eNOS protein expression in RBEE-treated aortas should contribute to this activity. RBEE attenuated vascular inflammation by reducing aortic iNOS and TNF-α expression. Aortas from RBEE-treated groups showed a significant decrease of superoxide production and down-regulation of NADPH oxidase subunits. CONCLUSION RBEE treatment restored endothelial function and vascular contractility in obese Zucker rats through a reduction of vascular inflammation and oxidative stress. These results show the nutraceutical potential of RBEE to prevent obesity-related vascular complications.
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Affiliation(s)
- Maria Luisa Justo
- Department of Pharmacology, School of Pharmacy, University of Seville, Seville, Spain
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Multiple and large simple renal cysts are associated with prehypertension and hypertension. Kidney Int 2013; 83:924-30. [PMID: 23389415 DOI: 10.1038/ki.2012.481] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Although simple renal cysts are thought to be related to hypertension, no reports have examined the relationship between simple renal cysts and prehypertension. Here, we evaluated the effects of simple renal cysts on prehypertension and hypertension and the role of serum renin levels in the cyst-related prehypertension/hypertension in adults. A total of 14,995 patients were enrolled and divided into normotension, prehypertension, and hypertension groups. Simple renal cysts were classified into different categories based on number (1 vs. ≥ 2 cm) and size (<2 vs. ≥ 2 cm). In multivariate analysis, simple renal cysts were independently related to prehypertension/hypertension. Two or more simple renal cysts or cyst of ≥ 2 cm were independently associated with prehypertension/hypertension. However, the association between cyst of ≥ 2 cm and prehypertension/hypertension disappeared after further adjusting for serum renin level in an exposure-matched subgroup analysis. Thus, the presence of two or more simple renal cysts and cyst of ≥ 2 cm were the important determinants of prehypertension and hypertension in adults. One possible mechanism of cyst-related prehypertension/hypertension may be related to an increased serum renin level. We recommend close monitoring of blood pressure routinely among patients with two or more simple renal cysts.
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Beiroa D, Romero-Picó A, Langa C, Bernabeu C, López M, López-Novoa JM, Nogueiras R, Diéguez C. Heterozygous deficiency of endoglin decreases insulin and hepatic triglyceride levels during high fat diet. PLoS One 2013; 8:e54591. [PMID: 23336009 PMCID: PMC3545959 DOI: 10.1371/journal.pone.0054591] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2012] [Accepted: 12/14/2012] [Indexed: 12/30/2022] Open
Abstract
Endoglin is a transmembrane auxiliary receptor for transforming growth factor-beta (TGF-beta) that is predominantly expressed on proliferating endothelial cells. It plays a wide range of physiological roles but its importance on energy balance or insulin sensitivity has been unexplored. Endoglin deficient mice die during midgestation due to cardiovascular defects. Here we report for first time that heterozygous endoglin deficiency in mice decreases high fat diet-induced hepatic triglyceride content and insulin levels. Importantly, these effects are independent of changes in body weight or adiposity. At molecular level, we failed to detect relevant changes in the insulin signalling pathway at basal levels in liver, muscle or adipose tissues that could explain the insulin-dependent effect. However, we found decreased triglyceride content in the liver of endoglin heterozygous mice fed a high fat diet in comparison to their wild type littermates. Overall, our findings indicate that endoglin is a potentially important physiological mediator of insulin levels and hepatic lipid metabolism.
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Affiliation(s)
- Daniel Beiroa
- Department of Physiology, School of Medicine-CIMUS – Instituto de Investigaciones Sanitarias (IDIS), CIBER Fisiopatologia de la Obesidad y Nutricion (CIBERobn), University of Santiago de Compostela, Santiago de Compostela, A Coruña, Spain
| | - Amparo Romero-Picó
- Department of Physiology, School of Medicine-CIMUS – Instituto de Investigaciones Sanitarias (IDIS), CIBER Fisiopatologia de la Obesidad y Nutricion (CIBERobn), University of Santiago de Compostela, Santiago de Compostela, A Coruña, Spain
| | - Carmen Langa
- Centro de Investigaciones Biológicas, Consejo Superior de Investigaciones Científicas (CSIC), and Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Madrid, Spain
| | - Carmelo Bernabeu
- Centro de Investigaciones Biológicas, Consejo Superior de Investigaciones Científicas (CSIC), and Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Madrid, Spain
| | - Miguel López
- Department of Physiology, School of Medicine-CIMUS – Instituto de Investigaciones Sanitarias (IDIS), CIBER Fisiopatologia de la Obesidad y Nutricion (CIBERobn), University of Santiago de Compostela, Santiago de Compostela, A Coruña, Spain
| | - José M. López-Novoa
- Renal and Cardiovascular Physiopathology Unit, Department of Physiology and Pharmacology, University of Salamanca and Instituto de Investigaciones Biomédicas de Salamanca (IBSAL), Campus Miguel de Unamuno, Salamanca, Spain
| | - Ruben Nogueiras
- Department of Physiology, School of Medicine-CIMUS – Instituto de Investigaciones Sanitarias (IDIS), CIBER Fisiopatologia de la Obesidad y Nutricion (CIBERobn), University of Santiago de Compostela, Santiago de Compostela, A Coruña, Spain
| | - Carlos Diéguez
- Department of Physiology, School of Medicine-CIMUS – Instituto de Investigaciones Sanitarias (IDIS), CIBER Fisiopatologia de la Obesidad y Nutricion (CIBERobn), University of Santiago de Compostela, Santiago de Compostela, A Coruña, Spain
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Park Y, Booth FW, Lee S, Laye MJ, Zhang C. Physical activity opposes coronary vascular dysfunction induced during high fat feeding in mice. J Physiol 2012; 590:4255-68. [PMID: 22674721 DOI: 10.1113/jphysiol.2012.234856] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
The study's purpose was to investigate if physical activity initiated with the start of high-fat feeding would oppose development of endothelial dysfunction, and if it does, then to determine some potential mechanisms. C57BL/6 female mice were randomly divided into three groups: (1) control low-fat diet (LF-SED; 15% of calories from fat), (2) high-fat diet (HF-SED; 45% of calories from fat), and (3) HF diet given access to a voluntary running wheel (HF-RUN). Our hypothesis was that HF-RUN would differ in multiple markers of endothelial dysfunction from HF-SED after 10 weeks of 45%-fat diet, but would not differ from LF-SED. HF-RUN differed from HF-SED in nine determinations in which HF-SED either had decreases in (1) acetylcholine (ACh)-induced and flow-induced vasodilatations in isolated, pressurized coronary arterioles, (2) heart phosphorylated endothelial nitric oxide synthase (p-eNOS/eNOS) protein, (3) coronary arteriole leptin (ob) receptor protein, (4) phosphorylated signal transducer and activator of transcription 3 (p-STAT3/STAT3) protein, and (5) coronary arteriole superoxide dismutase 1 protein; or had increases in (6) percentage body fat, (7) serum leptin, (8) coronary arteriole suppressor of cytokine signalling 3 (SOCS3) protein, and (9) coronary arteriole gp91(phox) protein. Higher endothelium-dependent vasodilatation by ACh or leptin was abolished with incubation of NOS inhibitor N(G)-nitro-l-arginine-methyl ester (l-NAME) in LF-SED and HF-RUN groups. Further, impaired ACh-induced vasodilatation in HF-SED was normalized by apocynin or TEMPOL to LF-SED and HF-RUN. These findings demonstrate multiple mechanisms (eNOS, leptin and redox balance) by which voluntary running opposes the development of impaired coronary arteriolar vasodilatation during simultaneous high-fat feeding.
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Affiliation(s)
- Yoonjung Park
- Internal Medicine, University of Missouri, Columbia, MO 65211, USA.
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Richard C, Couillard C, Royer MM, Desroches S, Couture P, Lamarche B. Impact of the Mediterranean diet with and without weight loss on plasma cell adhesion molecule concentrations in men with the metabolic syndrome. MEDITERRANEAN JOURNAL OF NUTRITION AND METABOLISM 2010. [DOI: 10.1007/s12349-010-0029-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Kagota S, Fukushima K, Umetani K, Tada Y, Nejime N, Nakamura K, Mori H, Sugimura K, Kunitomo M, Shinozuka K. Coronary vascular dysfunction promoted by oxidative-nitrative stress in SHRSP.Z-Leprfa/IzmDmcr rats with metabolic syndrome. Clin Exp Pharmacol Physiol 2010; 37:1035-43. [DOI: 10.1111/j.1440-1681.2010.05432.x] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Simple advice on lifestyle habits and long-term changes in biomarkers of inflammation and vascular adhesion in healthy middle-aged men. Eur J Clin Nutr 2010; 64:1450-6. [PMID: 20859301 DOI: 10.1038/ejcn.2010.182] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
BACKGROUND/OBJECTIVES Lifestyle habits, vascular function and inflammation are components in the development of cardiovascular disease (CVD). We investigated whether simple advice on dietary and exercise habits given (at a single time point) to hypercholesterolemic men affects circulating biomarkers of inflammation and vascular adhesion. SUBJECTS/METHODS In total, 157 men (age 46±5 years) with mild hypercholesterolemia were randomized to four intervention groups, diet (D, n=40), exercise (E, n=39), diet and exercise (DE, n=39) or controls (C, n=39) and serum concentrations of C-reactive protein (CRP), interleukin-6 (IL-6), soluble intercellular adhesion molecule 1 (sICAM-1), soluble vascular cell adhesion molecule 1 (sVCAM-1) and soluble E-selectin (sE-selectin) were quantified at baseline and after a 6-month intervention period. RESULTS The intervention applied in this study, that is, simple advice on lifestyle changes given at a single time point, had a modest effect on inflammatory biomarkers and soluble vascular adhesion molecules. The most apparent alterations were found for individuals in group DE, who responded with significant reductions in sICAM-1, -28 (-41 to -14 μg/l) and sE-selectin, -3.6 (-6.9 to -0.3 μg/l) after 6 months. None of the groups had altered their concentrations of sVCAM-1, CRP or IL-6 significantly after the intervention. In all individuals combined, we found changes in apolipoprotein B (apoB) to predict alterations in sICAM-1 (β=0.21) and sE-selectin (β=0.26), independently of changes in inflammation and other adhesion molecules. CONCLUSIONS These observations indicate that even small efforts to improve diet and physical activity can influence biomarkers of vascular function in individuals at increased risk for CVD. ApoB was identified as an important determinant of this improvement, which adds further support to the notion of apoB as a critical target in cardiovascular prevention.
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Miner MM, Barnes A, Janning S. Efficacy of phosphodiesterase type 5 inhibitor treatment in men with erectile dysfunction and dyslipidemia: a post hoc analysis of the vardenafil statin study. J Sex Med 2010; 7:1937-47. [PMID: 20202105 DOI: 10.1111/j.1743-6109.2010.01766.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
INTRODUCTION Dyslipidemia occurs often in subjects with erectile dysfunction (ED), but there is little information about how this condition affects ED treatment responses. AIM To determine whether low-density lipoprotein cholesterol (LDL-C) levels, total cholesterol (TC)/high-density lipoprotein cholesterol (HDL-C) ratio; or the presence of metabolic syndrome influenced efficacy of vardenafil in men with ED and dyslipidemia. METHODS Post hoc subgroup analysis of a 12-week study of the influence of lipid levels and presence of metabolic syndrome on the efficacy of vardenafil as measured by International Index of Erectile Function-Erectile Function (IIEF-EF) domain score, responses to Sexual Encounter Profile (SEP) SEP2 and SEP3 questions, duration of erection leading to successful intercourse, and erection duration regardless of the answer to SEP3. Lipid values were obtained at study start, after patients had received at least 3 months of therapy with a statin. MAIN OUTCOME MEASURES Outcomes in subjects with LDL-C < 100, > or = 100 to < 130, or > or = 130 mg/dL [< 2.59, > or = 2.59 to < 3.36, or > or = 3.36 mmol/L]; TC/HDL-C ratio < 3.5 vs. > or = 3.5, and presence or absence of metabolic syndrome. RESULTS Vardenafil improved all endpoints evaluated compared with placebo in all subgroups, however, nominally significant treatment by subgroup interaction terms did not follow a distinct pattern. Increasing LDL-C (P = 0.033), but not TC/HDL-C ratio or metabolic syndrome, was associated with an increase in treatment response measured by the IIEF-EF domain score. Responses to SEP3 were nominally influenced by LDL-C levels (P = 0.019), but were not significantly influenced by TC/HDL-C ratio, or the metabolic syndrome. Only higher TC/HDL-C ratios (> or = 3.5) were associated with larger treatment differences in duration of erection leading to successful intercourse (P = 0.028). CONCLUSIONS Vardenafil was effective in men with dyslipidemia regardless of LDL-C levels, TC/HDL-C ratio, and/or presence of metabolic syndrome. Despite the known presence of ED and dyslipidemia, other cardiovascular risk factors were apparently not aggressively managed.
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Affiliation(s)
- Martin M Miner
- Brown University School of Medicine, Providence, RI, USA.
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Singh H, Brindle NPJ, Zammit VA. High glucose and elevated fatty acids suppress signaling by the endothelium protective ligand angiopoietin-1. Microvasc Res 2010; 79:121-7. [PMID: 20079751 DOI: 10.1016/j.mvr.2010.01.005] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2009] [Accepted: 01/07/2010] [Indexed: 11/19/2022]
Abstract
Pre-diabetes is characterized by hyperglycemia and dyslipidemia; it is associated with increased cardiovascular disease and endothelial dysfunction. Angiopoietin-1 (Ang1), a ligand for endothelial receptor, is a potent vascular protective factor important in maintaining normal endothelial function. The aim of the study was to examine the influence of elevated glucose and fatty acid concentrations on angiopoietin signaling in human cardiac microvascular endothelial cells. Incubation with 30 mM glucose caused 50% suppression in the ability of Ang1 to activate Tie2-receptor phosphorylation without any decrease in Tie2 expression or increased internalization in microvascular endothelial cells. Examination of downstream signaling revealed inhibition of Ang1-dependent Akt phosphorylation. By contrast, Ang1 activation of Erk1/2 signaling was not affected by hyperglycemia. Similar suppression of Ang1-dependent activation of Akt by hyperglycemia was observed in large vessel human endothelial cells. Incubation of microvascular endothelial cells with 200 microM palmitic acid significantly inhibited Ang1-dependent Akt phosphorylation without affecting phosphorylation of the Tie-2 receptor or of ERK1/2. Therefore, contrary to hyperglycemia, palmitate acted exclusively downstream of the receptor. The present findings suggest a mechanism by which increased glucose or fatty acids may suppress vascular protection by Ang1 and predispose to endothelial dysfunction and vascular disease.
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Affiliation(s)
- Harprit Singh
- University of Leicester, Department of Cardiovascular Sciences, RKCSB, PO Box 65, Leicester LE2 7LX, UK
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Agouni A, Lagrue-Lak-Hal AH, Mostefai HA, Tesse A, Mulder P, Rouet P, Desmoulin F, Heymes C, Martínez MC, Andriantsitohaina R. Red wine polyphenols prevent metabolic and cardiovascular alterations associated with obesity in Zucker fatty rats (Fa/Fa). PLoS One 2009; 4:e5557. [PMID: 19440378 PMCID: PMC2679212 DOI: 10.1371/journal.pone.0005557] [Citation(s) in RCA: 83] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2009] [Accepted: 04/20/2009] [Indexed: 12/26/2022] Open
Abstract
BACKGROUND Obesity is associated with increased risks for development of cardiovascular diseases. Epidemiological studies report an inverse association between dietary flavonoid consumption and mortality from cardiovascular diseases. We studied the potential beneficial effects of dietary supplementation of red wine polyphenol extract, Provinols, on obesity-associated alterations with respect to metabolic disturbances and cardiovascular functions in Zucker fatty (ZF) rats. METHODOLOGY/PRINCIPAL FINDINGS ZF rats or their lean littermates received normal diet or supplemented with Provinols for 8 weeks. Provinols improved glucose metabolism by reducing plasma glucose and fructosamine in ZF rats. Moreover, it reduced circulating triglycerides and total cholesterol as well as LDL-cholesterol in ZF rats. Echocardiography measurements demonstrated that Provinols improved cardiac performance as evidenced by an increase in left ventricular fractional shortening and cardiac output associated with decreased peripheral arterial resistances in ZF rats. Regarding vascular function, Provinols corrected endothelial dysfunction in aortas from ZF rats by improving endothelium-dependent relaxation in response to acetylcholine (Ach). Provinols enhanced NO bioavailability resulting from increased nitric oxide (NO) production through enhanced endothelial NO-synthase (eNOS) activity and reduced superoxide anion release via decreased expression of NADPH oxidase membrane sub-unit, Nox-1. In small mesenteric arteries, although Provinols did not affect the endothelium-dependent response to Ach; it enhanced the endothelial-derived hyperpolarizing factor component of the response. CONCLUSIONS/SIGNIFICANCE Use of red wine polyphenols may be a potential mechanism for prevention of cardiovascular and metabolic alterations associated with obesity.
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Affiliation(s)
- Abdelali Agouni
- INSERM, U771, Angers, France
- CNRS UMR, 6214, Angers, France
- Université d'Angers, Angers, France
| | | | - Hadj Ahmed Mostefai
- INSERM, U771, Angers, France
- CNRS UMR, 6214, Angers, France
- Université d'Angers, Angers, France
| | - Angela Tesse
- INSERM, U771, Angers, France
- CNRS UMR, 6214, Angers, France
- Université d'Angers, Angers, France
| | | | - Philippe Rouet
- INSERM, U858, Toulouse, France
- Université Paul Sabatier, Institut Fédératif de Recherche 31, Toulouse, France
| | - Franck Desmoulin
- INSERM, U858, Toulouse, France
- Université Paul Sabatier, Institut Fédératif de Recherche 31, Toulouse, France
| | | | - Maria Carmen Martínez
- INSERM, U771, Angers, France
- CNRS UMR, 6214, Angers, France
- Université d'Angers, Angers, France
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Debin R, Lauzier B, Sicard P, Delemasure S, Amoureux S, Duvillard L, Vergely C, Cottin Y, Rochette L. Are Zucker obese rats a useful model for cardiovascular complications in metabolic syndrome? Physical, biochemical and oxidative stress considerations. Fundam Clin Pharmacol 2009; 23:59-67. [DOI: 10.1111/j.1472-8206.2008.00659.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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Transmission of raised blood pressure and endothelial dysfunction to the F2generation induced by maternal protein restriction in the F0, in the absence of dietary challenge in the F1generation. Br J Nutr 2008; 100:760-6. [DOI: 10.1017/s0007114508921747] [Citation(s) in RCA: 87] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
We have previously demonstrated that maternal protein restriction during pregnancy leads to raised blood pressure and endothelial dysfunction in the offspring (F1). Here we show that these characteristics are transmitted to the F2offspring through the maternal line, in the absence of any additional challenges to the F1. Female Wistar rats were fed either a control (18 % casein) or protein-restricted diet (PR; 9 % casein) throughout pregnancy. Female F1offspring, maintained on standard chow postpartum, were mated with breeding males to produce F2progeny. Systolic blood pressure (SBP) in male F2offspring was assessed by tail-cuff plethysmography at age 100 d and vascular function of small mesenteric arteries by wire myography at age 80 and 200 d. SBP was raised in PR F2offspring compared with controls (control 122·1 (sem2·3) mmHg,n7; PR 134·7 (sem3·2) mmHg,n6;P < 0·01) and endothelial function, assessed by vasodilatation to acetylcholine, was impaired at both age 80 d (% maximal response: control 89·7 (sem2·6),n14; PR 72·7 (sem4·4),n15;P < 0·01) and 200 d (effective concentration equal to 50 % of maximum (pEC50): control 7·67 (sem0·10),n10; PR 7·33 (sem0·07),n8;P < 0·05). The present study demonstrates that both raised blood pressure and endothelial dysfunction are passed via the maternal line to grand-offspring in the absence of any additional dietary challenges to their F1mothers. Risk factors for chronic disease may therefore be heritable by non-genomic processes.
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Bourgoin F, Bachelard H, Badeau M, Mélançon S, Pitre M, Larivière R, Nadeau A. Endothelial and vascular dysfunctions and insulin resistance in rats fed a high-fat, high-sucrose diet. Am J Physiol Heart Circ Physiol 2008; 295:H1044-H1055. [DOI: 10.1152/ajpheart.00516.2008] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
This study was designed to examine the effects of a high-fat, high-sucrose (HFHS) diet on vascular and metabolic actions of insulin. Male rats were randomized to receive an HFHS or regular chow diet for 4 wk. In a first series of experiments, the rats had pulsed Doppler flow probes and intravascular catheters implanted to measure blood pressure, heart rate, and regional blood flows. Insulin sensitivity and vascular responses to insulin were assessed during a euglycemic hyperinsulinemic clamp performed in conscious rats. In a second series of experiments, new groups of rats were used to examine skeletal muscle glucose transport activity and to determine in vitro vascular reactivity, endothelial nitric oxide synthase (eNOS) protein expression in muscle and vascular tissues and endothelin content, nitrotyrosine formation, and NAD(P)H oxidase protein expression in vascular tissues. The HFHS-fed rats displayed insulin resistance, hyperinsulinemia, hypertriglyceridemia, hyperlipidemia, elevated blood pressure, and impaired insulin-mediated renal and skeletal muscle vasodilator responses. A reduction in endothelium-dependent vasorelaxation, accompanied by a decreased eNOS protein expression in muscles and blood vessel endothelium, and increased vascular endothelin-1 protein content were also noted in HFHS-fed rats compared with control rats. Furthermore, the HFHS diet induced a reduced insulin-stimulated glucose transport activity in muscles and increased levels of NAD(P)H oxidase protein and nitrotyrosine formation in vascular tissues. These findings support the importance of eNOS protein in linking metabolic and vascular disease and indicate the ability of a Westernized diet to induce endothelial dysfunction and to alter metabolic and vascular homeostasis.
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Maternal undernutrition leads to endothelial dysfunction in adult male rat offspring independent of postnatal diet. Br J Nutr 2008; 101:27-33. [DOI: 10.1017/s0007114508988760] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Increasing evidence suggests a role for prenatal environment in the onset of cardiovascular and metabolic disease in later life. In the rat, undernutritionin uteroand a postnatal high-fat diet gives rise to a phenotype similar to the metabolic syndrome. As endothelial dysfunction is a feature of both CVD and the metabolic syndrome we investigated the impact of maternal undernutrition and/or postnatal high-fat on endothelial function. Virgin Wistar rats were mated and randomly assigned to groups to receive food eitherad libitum(control) or at 30 % ofad libitumintake throughout gestation. At postnatal day 250, a cohort from each group was challenged with a high-fat diet (D12451, 45 % energy from fat; Research Diets, Inc., New Brunswick, NJ, USA) for the remainder of the study. At 1 year of age, small mesenteric arteries were dissected and mounted on a wire myograph and responses to phenylephrine, endothelin, acetylcholine, leptin and sodium nitroprusside assessed. Vasoconstriction to endothelin was significantly enhanced in all groups compared with controls (-log effective concentration equal to 50 % of the maximal response (pEC50);P < 0·001). Endothelium-dependent vasodilatation to acetylcholine was significantly blunted in all groups compared with controls (% maximum response;P < 0·01), while dilatation to leptin and sodium nitroprusside was similar in all groups. These data demonstrate that both maternal undernutrition and postnatal high fat lead to vascular alterations and suggest that maternal undernutrition alone is at least as detrimental to offspring endothelial function as a long-term exposure to a high-fat diet in the offspring.
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Gayda M, Brun C, Juneau M, Levesque S, Nigam A. Long-term cardiac rehabilitation and exercise training programs improve metabolic parameters in metabolic syndrome patients with and without coronary heart disease. Nutr Metab Cardiovasc Dis 2008; 18:142-151. [PMID: 17142023 DOI: 10.1016/j.numecd.2006.07.003] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2006] [Revised: 06/27/2006] [Accepted: 07/12/2006] [Indexed: 11/26/2022]
Abstract
BACKGROUND AND AIMS The effectiveness of long-term cardiac rehabilitation and exercise training programs on metabolic parameters was evaluated in metabolic syndrome subjects with and without coronary heart disease (CHD). METHODS AND RESULTS Fifty-nine CHD and 81 non-coronary patients with metabolic syndrome (59+/-8 vs 56+/-9years) were identified retrospectively at entry into identical cardiac rehabilitation and exercise-training programs. Metabolic syndrome was defined using modified Adult Treatment Panel III criteria. Exercise training occurred approximately twice per week. Metabolic and exercise testing data were collected at baseline and after 12months during the course of the program. Mean duration of cardiac rehabilitation and exercise training programs was over one year in both coronary and non-coronary patients (366+/-111 vs 414+/-102days for CHD and non-coronary CHD cohorts respectively, p<0.01). Significant improvements in bodyweight, body mass index, blood lipids, triglyceride/HDL ratio and exercise tolerance were noted in both cohorts. At the end of follow-up, 31% of CHD and 20% of non-CHD subjects no longer possessed diagnostic criteria for metabolic syndrome (p<0.0001 and p<0.001 respectively). CONCLUSIONS A long-term cardiac rehabilitation program reduces metabolic syndrome prevalence in CHD patients and results in a similar improvement in risk factor control for metabolic syndrome patients without CHD.
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Affiliation(s)
- Mathieu Gayda
- Medicine Department, Research Center, Centre de médecine préventive et d'activité physique (EPIC), Montreal Heart Institute, 5000 Belanger Street, Montreal, Quebec H1T 1C8, Canada
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Sjögren P, Basta G, de Caterina R, Rosell M, Basu S, Silveira A, de Faire U, Vessby B, Hamsten A, Hellenius ML, Fisher RM. Markers of endothelial activity are related to components of the metabolic syndrome, but not to circulating concentrations of the advanced glycation end-product Nɛ-carboxymethyl-lysine in healthy Swedish men. Atherosclerosis 2007; 195:e168-75. [PMID: 17655851 DOI: 10.1016/j.atherosclerosis.2007.06.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2007] [Revised: 05/31/2007] [Accepted: 06/19/2007] [Indexed: 01/12/2023]
Abstract
Endothelial function is considered important in the development of cardiovascular diseases and type 2 diabetes. Circulating advanced glycation end-products (AGEs) and dietary components have been shown to affect endothelial function in type 2 diabetics, but determinants of endothelial function in a non-diabetic population are more poorly investigated. Therefore, we investigated relationships between dietary habits, AGEs and endothelial activation in men with isolated metabolic disturbances. Circulating markers of endothelial activation (soluble forms of vascular cell adhesion molecule-1, intercellular adhesion molecule-1, E-selectin and von Willebrand factor) and plasma N epsilon-carboxymethyl-lysine (CML, the predominant AGE in human plasma) were analyzed in a cross-sectional study of 294 healthy men. Individuals completed a 7-day dietary record, and metabolic and inflammatory parameters were determined. NCEP/ATPIII-criteria were used to define the metabolic syndrome. Endothelial activation was higher in individuals with the metabolic syndrome, and was positively related to certain features of the syndrome (insulin, glucose, inflammation and obesity), but not to others (triacylglycerol and blood pressure). Dietary factors were related to endothelial activation, but CML was not. Multivariate analysis revealed energy and alcohol intake, along with insulin and markers of oxidative stress and inflammation, to be positive predictors of endothelial activation. In this cohort of otherwise healthy men, endothelial activation was increased in individuals with the full metabolic syndrome, but not in those with only some of the components of the metabolic syndrome. Insulin resistance, inflammation, oxidative stress, the dietary intake of energy and alcohol, but not plasma CML, predicted endothelial activation in these men.
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Affiliation(s)
- Per Sjögren
- Atherosclerosis Research Unit, Department of Medicine, Karolinska Institutet, Stockholm, Sweden
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Rambaran C, Chowienczyk P, Ritter J, Shah A, Wilks R, Forrester T, Kalra L. The vascular effects of metabolic impairment clusters in subjects of different ethnicities. Atherosclerosis 2007; 192:354-62. [PMID: 16772094 DOI: 10.1016/j.atherosclerosis.2006.05.016] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2006] [Revised: 04/12/2006] [Accepted: 05/03/2006] [Indexed: 11/25/2022]
Abstract
BACKGROUND Although metabolic syndrome affects vascular function, the impact of individual impairments and their clustering is unclear. OBJECTIVE To assess the vascular impact of metabolic impairments before they reach treatment thresholds in different ethnic groups. METHODS Metabolic variables, inflammatory markers, endothelium dependent vasodilatation (EDV) and carotid intima media thickness (CIMT) were measured in population samples of 82 Caucasians and 78 matched Afro-Caribbeans with no vascular disease. Insulin resistance was assessed using homeostasis model assessment (HOMA-IR). EDV was measured as the change in the height of the inflection point of the digital volume pulse following intravenous infusion of 5 mcg/min of albuterol (DeltaRIDeltaLB). Regression models were used to investigate the independent effects of metabolic impairment clusters and their interaction with ethnicity on EDV and CIMT. RESULTS HOMA-IR (2.4-3.8, p < 0.0001), IL-6 levels (1.1-2.8 pg/mL, p = 0.02) and CIMT (0.71-0.83 mm, p = 0.009) increased whereas in DeltaRIBASELINE (77.6-72.9 percentage points, p < 0.0001) and DeltaRIDeltaLB (15.5-7.1 percentage points, p < 0.0001) decreased with the number of metabolic impairments present. DeltaRIDeltaLB decreased by 1.6 (95% CI 0.2-3.7) percentage points and CIMT increased by 0.06 (95% CI 0.02-0.10) mm for each metabolic impairment present after adjusting for age, gender, ethnicity and HOMA-IR. There were significant interactions between Afro-Caribbean ethnicity and metabolic impairments for IL-6 (p = 0.037) and DeltaRIDeltaLB (p = 0.002). CONCLUSIONS Clustering of metabolic impairments is associated with inflammatory activation, impaired EDV and increased CIMT even before reaching treatment thresholds for individual impairments. This effect was more marked in Afro-Caribbean subjects.
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Affiliation(s)
- Curtis Rambaran
- Cardiovascular Division, King's College London School of Medicine, London, UK
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