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Yang J, Barrila J, Nauman EA, Nydam SD, Yang S, Park J, Gutierrez-Jensen AD, Castro CL, Ott CM, Buss K, Steel J, Zakrajsek AD, Schuff MM, Nickerson CA. Incremental increases in physiological fluid shear progressively alter pathogenic phenotypes and gene expression in multidrug resistant Salmonella. Gut Microbes 2024; 16:2357767. [PMID: 38783686 PMCID: PMC11135960 DOI: 10.1080/19490976.2024.2357767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Accepted: 05/15/2024] [Indexed: 05/25/2024] Open
Abstract
The ability of bacteria to sense and respond to mechanical forces has important implications for pathogens during infection, as they experience wide fluid shear fluctuations in the host. However, little is known about how mechanical forces encountered in the infected host drive microbial pathogenesis. Herein, we combined mathematical modeling with hydrodynamic bacterial culture to profile transcriptomic and pathogenesis-related phenotypes of multidrug resistant S. Typhimurium (ST313 D23580) under different fluid shear conditions relevant to its transition from the intestinal tract to the bloodstream. We report that D23580 exhibited incremental changes in transcriptomic profiles that correlated with its pathogenic phenotypes in response to these progressive increases in fluid shear. This is the first demonstration that incremental changes in fluid shear forces alter stress responses and gene expression in any ST313 strain and offers mechanistic insight into how forces encountered by bacteria during infection might impact their disease-causing ability in unexpected ways.
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Affiliation(s)
- Jiseon Yang
- Biodesign Center for Fundamental and Applied Microbiomics, Arizona State University, Tempe, AZ, USA
- Biodesign Center for Immunotherapy, Vaccines and Virotherapy, Arizona State University, Tempe, AZ, USA
- School of Life Sciences, Arizona State University, Tempe, AZ, USA
| | - Jennifer Barrila
- Biodesign Center for Fundamental and Applied Microbiomics, Arizona State University, Tempe, AZ, USA
- Biodesign Center for Immunotherapy, Vaccines and Virotherapy, Arizona State University, Tempe, AZ, USA
| | - Eric A. Nauman
- Department of Biomedical Engineering, University of Cincinnati, Cincinnati, OH, USA
| | - Seth D. Nydam
- Department of Animal Care & Technologies, Arizona State University, Tempe, AZ, USA
| | - Shanshan Yang
- Bioinformatics Core Facility, Bioscience, Knowledge Enterprise, Arizona State University, Tempe, AZ, USA
| | - Jin Park
- Biodesign Center for Personalized Diagnostics, Arizona State University, Tempe, AZ, USA
| | - Ami D. Gutierrez-Jensen
- Biodesign Center for Immunotherapy, Vaccines and Virotherapy, Arizona State University, Tempe, AZ, USA
- School of Life Sciences, Arizona State University, Tempe, AZ, USA
| | - Christian L. Castro
- Biodesign Center for Immunotherapy, Vaccines and Virotherapy, Arizona State University, Tempe, AZ, USA
- School of Life Sciences, Arizona State University, Tempe, AZ, USA
- JES Tech, Houston, TX, USA
| | - C. Mark Ott
- Biomedical Research and Environmental Sciences Division, NASA Johnson Space Center, Houston, TX, USA
| | - Kristina Buss
- Bioinformatics Core Facility, Bioscience, Knowledge Enterprise, Arizona State University, Tempe, AZ, USA
- Biodesign Center for Personalized Diagnostics, Arizona State University, Tempe, AZ, USA
| | - Jason Steel
- Bioinformatics Core Facility, Bioscience, Knowledge Enterprise, Arizona State University, Tempe, AZ, USA
- Biodesign Center for Personalized Diagnostics, Arizona State University, Tempe, AZ, USA
| | - Anne D. Zakrajsek
- Department of Biomedical Engineering, University of Cincinnati, Cincinnati, OH, USA
| | - Mary M. Schuff
- Department of Biomedical Engineering, University of Cincinnati, Cincinnati, OH, USA
| | - Cheryl A. Nickerson
- Biodesign Center for Fundamental and Applied Microbiomics, Arizona State University, Tempe, AZ, USA
- Biodesign Center for Immunotherapy, Vaccines and Virotherapy, Arizona State University, Tempe, AZ, USA
- School of Life Sciences, Arizona State University, Tempe, AZ, USA
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Foote CA, Ramirez-Perez FI, Smith JA, Ghiarone T, Morales-Quinones M, McMillan NJ, Augenreich MA, Power G, Burr K, Aroor AR, Bender SB, Manrique-Acevedo C, Padilla J, Martinez-Lemus LA. Neuraminidase inhibition improves endothelial function in diabetic mice. Am J Physiol Heart Circ Physiol 2023; 325:H1337-H1353. [PMID: 37801046 PMCID: PMC10908409 DOI: 10.1152/ajpheart.00337.2023] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Revised: 09/29/2023] [Accepted: 09/29/2023] [Indexed: 10/07/2023]
Abstract
Neuraminidases cleave sialic acids from glycocalyx structures and plasma neuraminidase activity is elevated in type 2 diabetes (T2D). Therefore, we hypothesize circulating neuraminidase degrades the endothelial glycocalyx and diminishes flow-mediated dilation (FMD), whereas its inhibition restores shear mechanosensation and endothelial function in T2D settings. We found that compared with controls, subjects with T2D have higher plasma neuraminidase activity, reduced plasma nitrite concentrations, and diminished FMD. Ex vivo and in vivo neuraminidase exposure diminished FMD and reduced endothelial glycocalyx presence in mouse arteries. In cultured endothelial cells, neuraminidase reduced glycocalyx coverage. Inhalation of the neuraminidase inhibitor, zanamivir, reduced plasma neuraminidase activity, enhanced endothelial glycocalyx length, and improved FMD in diabetic mice. In humans, a single-arm trial (NCT04867707) of zanamivir inhalation did not reduce plasma neuraminidase activity, improved glycocalyx length, or enhanced FMD. Although zanamivir plasma concentrations in mice reached 225.8 ± 22.0 ng/mL, in humans were only 40.0 ± 7.2 ng/mL. These results highlight the potential of neuraminidase inhibition for ameliorating endothelial dysfunction in T2D and suggest the current Food and Drug Administration-approved inhaled dosage of zanamivir is insufficient to achieve desired outcomes in humans.NEW & NOTEWORTHY This work identifies neuraminidase as a key mediator of endothelial dysfunction in type 2 diabetes that may serve as a biomarker for impaired endothelial function and predictive of development and progression of cardiovascular pathologies associated with type 2 diabetes (T2D). Data show that intervention with the neuraminidase inhibitor zanamivir at effective plasma concentrations may represent a novel pharmacological strategy for restoring the glycocalyx and ameliorating endothelial dysfunction.
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Affiliation(s)
- Christopher A Foote
- NextGen Precision Health, University of Missouri, Columbia, Missouri, United States
- Department of Medical Pharmacology and Physiology, University of Missouri, Columbia, Missouri, United States
| | | | - James A Smith
- NextGen Precision Health, University of Missouri, Columbia, Missouri, United States
- Department of Nutrition and Exercise Physiology, University of Missouri, Columbia, Missouri, United States
| | - Thaysa Ghiarone
- NextGen Precision Health, University of Missouri, Columbia, Missouri, United States
| | | | - Neil J McMillan
- NextGen Precision Health, University of Missouri, Columbia, Missouri, United States
- Department of Nutrition and Exercise Physiology, University of Missouri, Columbia, Missouri, United States
| | - Marc A Augenreich
- NextGen Precision Health, University of Missouri, Columbia, Missouri, United States
- Department of Nutrition and Exercise Physiology, University of Missouri, Columbia, Missouri, United States
| | - Gavin Power
- NextGen Precision Health, University of Missouri, Columbia, Missouri, United States
- Department of Nutrition and Exercise Physiology, University of Missouri, Columbia, Missouri, United States
| | - Katherine Burr
- NextGen Precision Health, University of Missouri, Columbia, Missouri, United States
| | - Annayya R Aroor
- Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, University of Missouri, Columbia, Missouri, United States
- Research Service, Harry S. Truman Memorial Veterans Hospital, Columbia, Missouri, United States
| | - Shawn B Bender
- Research Service, Harry S. Truman Memorial Veterans Hospital, Columbia, Missouri, United States
- Department of Biomedical Sciences, University of Missouri, Columbia, Missouri, United States
| | - Camila Manrique-Acevedo
- NextGen Precision Health, University of Missouri, Columbia, Missouri, United States
- Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, University of Missouri, Columbia, Missouri, United States
- Research Service, Harry S. Truman Memorial Veterans Hospital, Columbia, Missouri, United States
| | - Jaume Padilla
- NextGen Precision Health, University of Missouri, Columbia, Missouri, United States
- Department of Nutrition and Exercise Physiology, University of Missouri, Columbia, Missouri, United States
- Research Service, Harry S. Truman Memorial Veterans Hospital, Columbia, Missouri, United States
| | - Luis A Martinez-Lemus
- NextGen Precision Health, University of Missouri, Columbia, Missouri, United States
- Department of Medical Pharmacology and Physiology, University of Missouri, Columbia, Missouri, United States
- Department of Medicine, Center for Precision Medicine, University of Missouri, Columbia, Missouri, United States
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3
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Hasan M, Al-Thani H, El-Menyar A, Zeidan A, Al-Thani A, Yalcin HC. Disturbed hemodynamics and oxidative stress interaction in endothelial dysfunction and AAA progression: Focus on Nrf2 pathway. Int J Cardiol 2023; 389:131238. [PMID: 37536420 DOI: 10.1016/j.ijcard.2023.131238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 04/30/2023] [Accepted: 07/31/2023] [Indexed: 08/05/2023]
Abstract
Hemodynamic shear stress is one of the major factors that are involved in the pathogenesis of many cardiovascular diseases including atherosclerosis and abdominal aortic aneurysm (AAA), through its modulatory effect on the endothelial cell's redox homeostasis and mechanosensitive gene expression. Among important mechanisms, oxidative stress, endoplasmic reticulum stress activation, and the subsequent endothelial dysfunction are attributed to disturbed blood flow and low shear stress in the vascular curvature and bifurcations which are considered atheroprone regions and aneurysm occurrence spots. Many pathways were shown to be involved in AAA progression. Of particular interest from recent findings is, the (Nrf2)/Keap-1 pathway, where Nrf2 is a transcription factor that has antioxidant properties and is strongly associated with several CVDs, yet, the exact mechanism by which Nrf2 alleviates CVDs still to be elucidated. Nrf2 expression is closely affected by shear stress and was shown to participate in AAA. In the current review paper, we discussed the link between disturbed hemodynamics and its effect on Nrf2 as a mechanosensitive gene and its role in the development of endothelial dysfunction which is linked to the progression of AAA.
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Affiliation(s)
- Maram Hasan
- Biomedical Research Center, Qatar University, P.O. Box 2713, Doha, Qatar
| | - Hassan Al-Thani
- Department of Surgery, Trauma and Vascular Surgery, Hamad General Hospital, Hamad Medical Corporation, P.O. Box 3050, Doha, Qatar
| | - Ayman El-Menyar
- Department of Surgery, Trauma and Vascular Surgery, Hamad General Hospital, Hamad Medical Corporation, P.O. Box 3050, Doha, Qatar; Clinical Medicine, Weill Cornell Medical College, Doha, Qatar
| | - Asad Zeidan
- Department of Basic Sciences, College of Medicine, QU health, Qatar University, P.O. Box 2713, Doha, Qatar
| | - Asmaa Al-Thani
- Biomedical Research Center, Qatar University, P.O. Box 2713, Doha, Qatar; Department of Biomedical Science, College of Health Sciences, QU Health, Qatar University, P.O. Box 2713, Doha, Qatar
| | - Huseyin C Yalcin
- Biomedical Research Center, Qatar University, P.O. Box 2713, Doha, Qatar.
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Dozio E, Massaccesi L, Corsi Romanelli MM. Glycation and Glycosylation in Cardiovascular Remodeling: Focus on Advanced Glycation End Products and O-Linked Glycosylations as Glucose-Related Pathogenetic Factors and Disease Markers. J Clin Med 2021; 10:jcm10204792. [PMID: 34682915 PMCID: PMC8539574 DOI: 10.3390/jcm10204792] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 10/15/2021] [Accepted: 10/16/2021] [Indexed: 02/07/2023] Open
Abstract
Glycation and glycosylation are non-enzymatic and enzymatic reactions, respectively, of glucose, glucose metabolites, and other reducing sugars with different substrates, such as proteins, lipids, and nucleic acids. Increased availability of glucose is a recognized risk factor for the onset and progression of diabetes-mellitus-associated disorders, among which cardiovascular diseases have a great impact on patient mortality. Both advanced glycation end products, the result of non-enzymatic glycation of substrates, and O-linked-N-Acetylglucosaminylation, a glycosylation reaction that is controlled by O-N-AcetylGlucosamine (GlcNAc) transferase (OGT) and O-GlcNAcase (OGA), have been shown to play a role in cardiovascular remodeling. In this review, we aim (1) to summarize the most recent data regarding the role of glycation and O-linked-N-Acetylglucosaminylation as glucose-related pathogenetic factors and disease markers in cardiovascular remodeling, and (2) to discuss potential common mechanisms linking these pathways to the dysregulation and/or loss of function of different biomolecules involved in this field.
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Affiliation(s)
- Elena Dozio
- Laboratory of Clinical Pathology, Department of Biomedical Sciences for Health, Università degli Studi di Milano, 20133 Milan, Italy; (L.M.); (M.M.C.R.)
- Correspondence: ; Tel.: +39-02-50-315-342
| | - Luca Massaccesi
- Laboratory of Clinical Pathology, Department of Biomedical Sciences for Health, Università degli Studi di Milano, 20133 Milan, Italy; (L.M.); (M.M.C.R.)
| | - Massimiliano Marco Corsi Romanelli
- Laboratory of Clinical Pathology, Department of Biomedical Sciences for Health, Università degli Studi di Milano, 20133 Milan, Italy; (L.M.); (M.M.C.R.)
- Service of Laboratory Medicine1-Clinical Pathology, IRCCS Policlinico San Donato, San Donato Milanese, 20097 Milan, Italy
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Chehaitly A, Vessieres E, Guihot AL, Henrion D. Flow-mediated outward arterial remodeling in aging. Mech Ageing Dev 2020; 194:111416. [PMID: 33333130 DOI: 10.1016/j.mad.2020.111416] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 12/08/2020] [Accepted: 12/11/2020] [Indexed: 12/13/2022]
Abstract
The present review focuses on the effect of aging on flow-mediated outward remodeling (FMR) via alterations in estrogen metabolism, oxidative stress and inflammation. In ischemic disorders, the ability of the vasculature to adapt or remodel determines the quality of the recovery. FMR, which has a key role in revascularization, is a complex phenomenon that recruits endothelial and smooth muscle cells as well as the immune system. FMR becomes progressively less with age as a result of an increase in inflammation and oxidative stress, in part of mitochondrial origin. The alteration in FMR is greater in older individuals with risk factors and thus the therapy cannot merely amount to exercise with or without a mild vasodilating drug. Interestingly, the reduction in FMR occurs later in females. Estrogen and its alpha receptor (ERα) play a key role in FMR through the control of dilatory pathways including the angiotensin II type 2 receptor, thus providing possible tools to activate FMR in older subjects although only experimental data is available. Indeed, the main issue is the reversibility of the vascular damage induced over time, and to date promoting prevention and limiting exposure to the risk factors remain the best options in this regard.
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Affiliation(s)
- Ahmad Chehaitly
- MITOVASC Laboratory and CARFI Facility, INSERM U1083, CNRS UMR 6015, University of Angers, Angers, France
| | - Emilie Vessieres
- MITOVASC Laboratory and CARFI Facility, INSERM U1083, CNRS UMR 6015, University of Angers, Angers, France
| | - Anne-Laure Guihot
- MITOVASC Laboratory and CARFI Facility, INSERM U1083, CNRS UMR 6015, University of Angers, Angers, France
| | - Daniel Henrion
- MITOVASC Laboratory and CARFI Facility, INSERM U1083, CNRS UMR 6015, University of Angers, Angers, France.
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Kwon O, Lee PH, Lee SW, Kweon J, Lee JY, Lee K, Kang DY, Ahn JM, Park DW, Kang SJ, Kim YH, Lee CW, Park SW, Park SJ. Fate of lumen size in distal coronary segment following successful chronic total occlusion recanalization. J Cardiol 2020; 77:65-71. [PMID: 33121797 DOI: 10.1016/j.jjcc.2020.07.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Revised: 06/19/2020] [Accepted: 07/06/2020] [Indexed: 11/29/2022]
Abstract
BACKGROUND Restoration of anterograde blood flow leads to alterations in vascular wall stress that may influence lumen size distal to chronic total occlusion (CTO) lesions. We sought to assess changes in lumen diameter of segments distal to the stent segment of successfully recanalized CTO. METHODS We analyzed 507 consecutive CTO cases with stent implantation that underwent follow-up angiography at a single high-volume center (mean follow-up of 13.5 months). Segments ≤40 mm distal to the stent edge were analyzed using quantitative coronary angiography. RESULTS At follow-up, lumen diameters significantly increased; diameter changes of 0.26 ± 0.47 (percent diameter change of 18.2%) at 5 mm distal, mean lumen diameter changes of 0.23 ± 0.35 (14.3%) and minimal lumen diameter changes of 0.22 ± 0.80 (24.7%) (all p < 0.001). Lumen enlargement was similar between visually shrunken and stenosed vessels (degree of stenosis ≥20% with luminal irregularities) distal to stents; 5 mm distal (0.32 ± 0.48 vs. 0.30 ± 0.48, p = 0.76), mean lumen diameter changes (0.26 ± 0.37mm vs. 0.26±0.33 mm, p = 0.94), minimal lumen diameter changes (0.28 ± 0.43 mm vs. 0.22 ± 1.30 mm, p = 0.48). There was no association between degree of in-stent narrowing and changes in distal lumen diameter (Spearman r = -0.02, p = 0.59). Multivariate logistic regression for the predictors of greater lumen enlargement indicated that patients with left ventricle dysfunction (ejection fraction ≤45%) had greater enlargement [odds ratio (OR): 2.53, 95% confidence interval (CI): 1.23-5.23, p = 0.01]. Conversely, a low hematocrit (male <40%, and female <35%) was associated with attenuated lumen enlargement (OR: 0.68 95% CI: 0.47-0.98; p = 0.04). CONCLUSIONS Lumen diameter distal to CTO lesions significantly increased following successful revascularization, regardless of diseased status of the distal bed or degree of in-stent narrowing. These findings implicate appropriate determination of stent size, stent coverage length, as well as management strategies of distal vessels.
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Affiliation(s)
- Osung Kwon
- Division of Cardiology, Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea; Division of Cardiology, Department of Internal Medicine, The Catholic University of Korea, Eunpyeong St. Mary's Hospital, Seoul, Republic of Korea
| | - Pil Hyung Lee
- Division of Cardiology, Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Seung-Whan Lee
- Division of Cardiology, Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea.
| | - Jihoon Kweon
- Division of Cardiology, Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Jong-Young Lee
- Division of Cardiology, Department of Medicine, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Kyusup Lee
- Division of Cardiology, Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Do-Yoon Kang
- Division of Cardiology, Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Jung-Min Ahn
- Division of Cardiology, Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Duk-Woo Park
- Division of Cardiology, Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Soo-Jin Kang
- Division of Cardiology, Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Young-Hak Kim
- Division of Cardiology, Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Cheol Whan Lee
- Division of Cardiology, Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Seong-Wook Park
- Division of Cardiology, Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Seung-Jung Park
- Division of Cardiology, Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
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Roadmap for Stroke: Challenging the Role of the Neuronal Extracellular Matrix. Int J Mol Sci 2020; 21:ijms21207554. [PMID: 33066304 PMCID: PMC7589675 DOI: 10.3390/ijms21207554] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 10/02/2020] [Accepted: 10/08/2020] [Indexed: 01/03/2023] Open
Abstract
Stroke is a major challenge in modern medicine and understanding the role of the neuronal extracellular matrix (NECM) in its pathophysiology is fundamental for promoting brain repair. Currently, stroke research is focused on the neurovascular unit (NVU). Impairment of the NVU leads to neuronal loss through post-ischemic and reperfusion injuries, as well as coagulatory and inflammatory processes. The ictal core is produced in a few minutes by the high metabolic demand of the central nervous system. Uncontrolled or prolonged inflammatory response is characterized by leukocyte infiltration of the injured site that is limited by astroglial reaction. The metabolic failure reshapes the NECM through matrix metalloproteinases (MMPs) and novel deposition of structural proteins continues within months of the acute event. These maladaptive reparative processes are responsible for the neurological clinical phenotype. In this review, we aim to provide a systems biology approach to stroke pathophysiology, relating the injury to the NVU with the pervasive metabolic failure, inflammatory response and modifications of the NECM. The available data will be used to build a protein–protein interaction (PPI) map starting with 38 proteins involved in stroke pathophysiology, taking into account the timeline of damage and the co-expression scores of their RNA patterns The application of the proposed network could lead to a more accurate design of translational experiments aiming at improving both the therapy and the rehabilitation processes.
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8
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Sano H, Watanabe M, Yamashita T, Tanishita K, Sudo R. Control of vessel diameters mediated by flow-induced outward vascular remodeling in vitro. Biofabrication 2020; 12:045008. [DOI: 10.1088/1758-5090/ab9316] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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9
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Dominic A, Banerjee P, Hamilton DJ, Le NT, Abe JI. Time-dependent replicative senescence vs. disturbed flow-induced pre-mature aging in atherosclerosis. Redox Biol 2020; 37:101614. [PMID: 32863187 PMCID: PMC7767754 DOI: 10.1016/j.redox.2020.101614] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 06/07/2020] [Accepted: 06/18/2020] [Indexed: 12/19/2022] Open
Abstract
Accumulation of senescent cells has a causative role in the pathology of age-related disorders including atherosclerosis (AS) and cardiovascular diseases (CVDs). However, the concept of senescence is now drastically changing, and the new concept of senescence-associated reprogramming/stemness has emerged, suggesting that senescence is not merely related to “cell cycle arrest” or halting various cellular functions. It is well known that disturbed flow (D-flow) accelerates pre-mature aging and plays a significant role in the development of AS. We will discuss in this review that pre-mature aging induced by D-flow is not comparable to time-dependent aging, particularly with a focus on the possible involvement of senescence-associated secretory phenotype (SASP) in senescence-associated reprogramming/stemness, or increasing cell numbers. We will also present our outlook of nicotinamide adenine dinucleotides (NAD)+ deficiency-induced mitochondrial reactive oxygen species (mtROS) in evoking SASP by activating DNA damage response (DDR). MtROS plays a key role in developing cross-talk between nuclear-mitochondria, SASP, and ultimately atherosclerosis formation. Although senescence induced by time and various stress factors is a classical concept, we wish that the readers will see the undergoing Copernican-like change in this concept, as well as to recognize the significant contrast between pre-mature aging induced by D-flow and time-dependent aging.
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Affiliation(s)
- Abishai Dominic
- Department of Molecular and Cellular Biology Texas A&M Health Science Center, USA; Department of Cardio-Vascular Regeneration, Houston Methodist Research Institute, Texas, USA
| | - Priyanka Banerjee
- Department of Cardio-Vascular Regeneration, Houston Methodist Research Institute, Texas, USA
| | - Dale J Hamilton
- Department of Medicine, Center for Bioenergetics Houston Methodist Research Institute, Texas, USA
| | - Nhat-Tu Le
- Department of Cardio-Vascular Regeneration, Houston Methodist Research Institute, Texas, USA.
| | - Jun-Ichi Abe
- The University of Texas MD Anderson Cancer Center, Houston, TX, USA.
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10
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Hyperglycemia-induced transcriptional regulation of ROCK1 and TGM2 expression is involved in small artery remodeling in obese diabetic Göttingen Minipigs. Clin Sci (Lond) 2020; 133:2499-2516. [PMID: 31830262 DOI: 10.1042/cs20191066] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Revised: 12/11/2019] [Accepted: 12/12/2019] [Indexed: 12/11/2022]
Abstract
Obesity and diabetes in humans are associated with hypertrophic remodeling and increased media:lumen ratio of small resistance arteries, which is an independent predictor of cardiovascular events. In order to minimize increases in media:lumen ratio, hypertrophic remodeling should be accompanied by outward remodeling. We aimed to investigate the mechanisms of structural remodeling in small pial arteries (PAs) and terminal mesenteric arteries (TMAs) from obese Göttingen Minipigs with or without diabetes. Göttingen Minipigs received either control diet (lean control (LC)), high fat/high fructose/high cholesterol diet (FFC), or FFC diet with streptozotocin (STZ)-induced diabetes (FFC/STZ) for 13 months. At the end of the study (20 months), we assessed body weight, fasting plasma biochemistry, passive vessel dimensions, mRNA expression (matrix metallopeptidases 2/9 (MMP2, MMP9), tissue inhibitor of metallopeptidase 1 (TIMP1), transglutaminase 2 (TGM2), Rho-kinase 1 (ROCK1), TGFβ-receptor 2 (TGFBR2), and IGF1-receptor (IGFR1) genes), and immunofluorescence in PAs and TMAs. We performed multiple linear correlation analyses using plasma values, structural data, and gene expression data. We detected outward hypertrophic remodeling in TMAs and hypertrophic remodeling in PAs from FFC/STZ animals. ROCK1 and TGM2 genes were up-regulated in PAs and TMAs from the FFC/STZ group. Passive lumen diameter (PLD) of TMAs was correlated with plasma values of glucose (GLU), fructosamine (FRA), total cholesterol (TC), and triglycerides (TGs). ROCK1 and TGM2 expressions in TMAs were correlated with PLD, plasma GLU, fructosamine, and TC. ROCK1 and TGM2 proteins were immunolocalized in the media of PAs and TMAs, and their fluorescence levels were increased in the FFC/STZ group. Hyperglycemia/hyperlipidemia is involved in regulation of ROCK1 and TGM2 expression leading to outward remodeling of small resistance arteries in obese diabetic Göttingen Minipigs.
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11
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Coronary arterial vasculature in the pathophysiology of hypertrophic cardiomyopathy. Pflugers Arch 2018; 471:769-780. [PMID: 30370501 DOI: 10.1007/s00424-018-2224-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2018] [Accepted: 10/16/2018] [Indexed: 02/07/2023]
Abstract
Alterations in the coronary vascular system are likely associated with a mismatch between energy demand and energy supply and critical in triggering the cascade of events that leads to symptomatic hypertrophic cardiomyopathy. Targeting the early events, particularly vascular remodeling, may be a key approach to developing effective treatments. Improvement in our understanding of hypertrophic cardiomyopathy began with the results of early biophysical studies, proceeded to genetic analyses pinpointing the mutational origin, and now pertains to imaging of the metabolic and flow-related consequences of such mutations. Microvascular dysfunction has been an ongoing hot topic in the imaging of genetic cardiomyopathies marked by its histologically significant remodeling and has proven to be a powerful asset in determining prognosis for these patients as well as enlightening scientists on a potential pathophysiological cascade that may begin early during the developmental process. Here, we discuss questions that continue to remain on the mechanistic processes leading to microvascular dysfunction, its correlation to the morphological changes in the vessels, and its contribution to disease progression.
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Dib A, Payen C, Bourreau J, Munier M, Grimaud L, Fajloun Z, Loufrani L, Henrion D, Fassot C. In Utero Exposure to Maternal Diabetes Is Associated With Early Abnormal Vascular Structure in Offspring. Front Physiol 2018; 9:350. [PMID: 29670546 PMCID: PMC5893798 DOI: 10.3389/fphys.2018.00350] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Accepted: 03/20/2018] [Indexed: 11/13/2022] Open
Abstract
Aim/hypothesis:In utero exposure to maternal diabetes increases the risk of developing hypertension and cardiovascular disorders during adulthood. We have previously shown that this is associated with changes in vascular tone in favor of a vasoconstrictor profile, which is involved in the development of hypertension. This excessive constrictor tone has also a strong impact on vascular structure. Our objective was to study the impact of in utero exposure to maternal diabetes on vascular structure and remodeling induced by chronic changes in hemodynamic parameters. Methods and Results: We used an animal model of rats exposed in utero to maternal hyperglycemia (DMO), which developed hypertension at 6 months of age. At a pre-hypertensive stage (3 months of age), we observed deep structural modifications of the vascular wall without any hemodynamic perturbations. Indeed, in basal conditions, resistance arteries of DMO rats are smaller than those of control mother offspring (CMO) rats; in addition, large arteries like thoracic aorta of DMO rats have an increase of smooth muscle cell attachments to elastic lamellae. In an isolated perfused kidney, we also observed a leftward shift of the flow/pressure relationship, suggesting a rise in renal peripheral vascular resistance in DMO compared to CMO rats. In this context, we studied vascular remodeling in response to reduced blood flow by in vivo mesenteric arteries ligation. In DMO rats, inward remodeling induced by a chronic reduction in blood flow (1 or 3 weeks after ligation) did not occur by contrast to CMO rats in which arterial diameter decreased from 428 ± 17 μm to 331 ± 20 μm (at 125 mmHg, p = 0.001). In these animals, the transglutaminase 2 (TG2) pathway, essential for inward remodeling development in case of flow perturbations, was not activated in low-flow (LF) mesenteric arteries. Finally, in old hypertensive DMO rats (18 months of age), we were not able to detect a pressure-induced remodeling in thoracic aorta. Conclusions: Our results demonstrate for the first time that in utero exposure to maternal diabetes induces deep changes in the vascular structure. Indeed, the early narrowing of the microvasculature and the structural modifications of conductance arteries could be a pre-emptive adaptation to fetal programming of hypertension.
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Affiliation(s)
- Abdallah Dib
- UMR Centre National de la Recherche Scientifique 6015, INSERM U1083, MITOVASC, University of Angers, Angers, France
| | - Cyrielle Payen
- UMR Centre National de la Recherche Scientifique 6015, INSERM U1083, MITOVASC, University of Angers, Angers, France
| | - Jennifer Bourreau
- UMR Centre National de la Recherche Scientifique 6015, INSERM U1083, MITOVASC, University of Angers, Angers, France
| | - Mathilde Munier
- UMR Centre National de la Recherche Scientifique 6015, INSERM U1083, MITOVASC, University of Angers, Angers, France.,University Hospital of Angers, Angers, France.,Reference Center for Rare Disease of Thyroid and Hormone Receptors, University Hospital Angers, Angers, France
| | - Linda Grimaud
- UMR Centre National de la Recherche Scientifique 6015, INSERM U1083, MITOVASC, University of Angers, Angers, France
| | - Ziad Fajloun
- Faculty of Sciences III, Azm Center for Research in Biotechnology and Its Applications, Doctoral School of Science and Technology, Lebanese University, Tripoli, Lebanon
| | - Laurent Loufrani
- UMR Centre National de la Recherche Scientifique 6015, INSERM U1083, MITOVASC, University of Angers, Angers, France.,University Hospital of Angers, Angers, France
| | - Daniel Henrion
- UMR Centre National de la Recherche Scientifique 6015, INSERM U1083, MITOVASC, University of Angers, Angers, France.,University Hospital of Angers, Angers, France
| | - Céline Fassot
- UMR Centre National de la Recherche Scientifique 6015, INSERM U1083, MITOVASC, University of Angers, Angers, France
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13
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Di Russo J, Luik AL, Yousif L, Budny S, Oberleithner H, Hofschröer V, Klingauf J, van Bavel E, Bakker EN, Hellstrand P, Bhattachariya A, Albinsson S, Pincet F, Hallmann R, Sorokin LM. Endothelial basement membrane laminin 511 is essential for shear stress response. EMBO J 2016; 36:183-201. [PMID: 27940654 PMCID: PMC5239996 DOI: 10.15252/embj.201694756] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2016] [Revised: 11/08/2016] [Accepted: 11/09/2016] [Indexed: 11/09/2022] Open
Abstract
Shear detection and mechanotransduction by arterial endothelium requires junctional complexes containing PECAM-1 and VE-cadherin, as well as firm anchorage to the underlying basement membrane. While considerable information is available for junctional complexes in these processes, gained largely from in vitro studies, little is known about the contribution of the endothelial basement membrane. Using resistance artery explants, we show that the integral endothelial basement membrane component, laminin 511 (laminin α5), is central to shear detection and mechanotransduction and its elimination at this site results in ablation of dilation in response to increased shear stress. Loss of endothelial laminin 511 correlates with reduced cortical stiffness of arterial endothelium in vivo, smaller integrin β1-positive/vinculin-positive focal adhesions, and reduced junctional association of actin-myosin II In vitro assays reveal that β1 integrin-mediated interaction with laminin 511 results in high strengths of adhesion, which promotes p120 catenin association with VE-cadherin, stabilizing it at cell junctions and increasing cell-cell adhesion strength. This highlights the importance of endothelial laminin 511 in shear response in the physiologically relevant context of resistance arteries.
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Affiliation(s)
- Jacopo Di Russo
- Institute of Physiological Chemistry and Pathobiochemistry, University of Muenster, Muenster, Germany.,Cells-in-Motion Cluster of Excellence, University of Muenster, Muenster, Germany
| | - Anna-Liisa Luik
- Institute of Physiological Chemistry and Pathobiochemistry, University of Muenster, Muenster, Germany.,Cells-in-Motion Cluster of Excellence, University of Muenster, Muenster, Germany
| | - Lema Yousif
- Institute of Physiological Chemistry and Pathobiochemistry, University of Muenster, Muenster, Germany.,Cells-in-Motion Cluster of Excellence, University of Muenster, Muenster, Germany
| | - Sigmund Budny
- Institute of Physiological Chemistry and Pathobiochemistry, University of Muenster, Muenster, Germany.,Cells-in-Motion Cluster of Excellence, University of Muenster, Muenster, Germany
| | - Hans Oberleithner
- Cells-in-Motion Cluster of Excellence, University of Muenster, Muenster, Germany.,Institute of Physiology II, University of Muenster, Muenster, Germany
| | - Verena Hofschröer
- Cells-in-Motion Cluster of Excellence, University of Muenster, Muenster, Germany.,Institute of Physiology II, University of Muenster, Muenster, Germany
| | - Juergen Klingauf
- Cells-in-Motion Cluster of Excellence, University of Muenster, Muenster, Germany.,Institute of Medical Physics, University of Muenster, Muenster, Germany
| | - Ed van Bavel
- Biomedical Engineering and Physics, Academic Medical Centre, University of Amsterdam, Amsterdam, The Netherlands
| | - Erik Ntp Bakker
- Biomedical Engineering and Physics, Academic Medical Centre, University of Amsterdam, Amsterdam, The Netherlands
| | - Per Hellstrand
- Department of Experimental Medical Science, Lund University, Lund, Sweden
| | | | | | - Frederic Pincet
- Laboratoire de Physique Statistique, École Normale Superieure - PSL Research University, Paris, France.,CNRS UMR8550, Sorbonne Universités - UPMC Univ Paris 06, Université Paris, Paris, France
| | - Rupert Hallmann
- Institute of Physiological Chemistry and Pathobiochemistry, University of Muenster, Muenster, Germany.,Cells-in-Motion Cluster of Excellence, University of Muenster, Muenster, Germany
| | - Lydia M Sorokin
- Institute of Physiological Chemistry and Pathobiochemistry, University of Muenster, Muenster, Germany .,Cells-in-Motion Cluster of Excellence, University of Muenster, Muenster, Germany
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14
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Tarhouni K, Guihot A, Vessieres E, Procaccio V, Grimaud L, Abraham P, Lenfant F, Arnal J, Favre J, Loufrani L, Henrion D. Estrogens are needed for the improvement in endothelium-mediated dilation induced by a chronic increase in blood flow in rat mesenteric arteries. Vascul Pharmacol 2016; 80:35-42. [DOI: 10.1016/j.vph.2015.10.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2015] [Revised: 10/05/2015] [Accepted: 10/09/2015] [Indexed: 01/02/2023]
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15
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Petit M, Guihot AL, Grimaud L, Vessieres E, Toutain B, Menet MC, Nivet-Antoine V, Arnal JF, Loufrani L, Procaccio V, Henrion D. Resveratrol Improved Flow-Mediated Outward Arterial Remodeling in Ovariectomized Rats with Hypertrophic Effect at High Dose. PLoS One 2016; 11:e0146148. [PMID: 26734763 PMCID: PMC4703409 DOI: 10.1371/journal.pone.0146148] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2015] [Accepted: 12/14/2015] [Indexed: 12/25/2022] Open
Abstract
Objectives Chronic increases in blood flow in resistance arteries induce outward remodeling associated with increased wall thickness and endothelium-mediated dilatation. This remodeling is essential for collateral arteries growth following occlusion of a large artery. As estrogens have a major role in this remodeling, we hypothesized that resveratrol, described as possessing phytoestrogen properties, could improve remodeling in ovariectomized rats. Methods Blood flow was increased in vivo in mesenteric arteries after ligation of adjacent arteries in 3-month old ovariectomized rats treated with resveratrol (5 or 37.5 mg/kg per day: RESV5 or RESV37.5) or vehicle. After 2 weeks arterial structure and function were measured in vitro in high flow (HF) and normal flow (NF) arteries isolated from each rat. Results Arterial diameter was greater in HF than in NF arteries in ovariectomized rats treated with RESV5 or RESV37.5, not in vehicle-treated rats. In mice lacking estrogen receptor alpha diameter was equivalent in HF and NF arteries whereas in mice treated with RESV5 diameter was greater in HF than in NF vessels. A compensatory increase in wall thickness and a greater phenylephrine-mediated contraction were observed in HF arteries. This was more pronounced in HF arteries from RESV37.5-treated rats. ERK1/2 phosphorylation, involved in hypertrophy and contraction, were higher in RESV37.5-treated rats than in RESV5- and vehicle-treated rats. Endothelium-dependent relaxation was greater in HF than in NF arteries in RESV5-treated rats only. In HF arteries from RESV37.5-treated rats relaxation was increased by superoxide reduction and markers of oxidative stress (p67phox, GP91phox) were higher than in the 2 other groups. Conclusion Resveratrol improved flow-mediated outward remodeling in ovariectomized rats thus providing a potential therapeutic tool in menopause-associated ischemic disorders. This effect seems independent of the estrogen receptor alpha. Nevertheless, caution should be taken with high doses inducing excessive contractility and hypertrophy in association with oxidative stress in HF arteries.
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Affiliation(s)
| | | | | | - Emilie Vessieres
- University of Angers, Angers, France
- CARFI (Cardiovascular Function In vitro) facility, Angers, France
| | | | - Marie-Claude Menet
- UMR-S1144, Faculty of Pharmacy, Paris Descartes University, Paris, France, and Assistance Publique Hôpitaux de Paris, Department of Biochemistry, Cochin Hospital, Paris, France
| | - Valérie Nivet-Antoine
- UMR-S1140, Faculty of Pharmacy, Paris Descartes University, Paris, France, and Assistance Publique Hôpitaux de Paris, Department of Biochemistry, Georges Pompidou European Hospital, Paris, France
| | - Jean-François Arnal
- INSERM U1048, Toulouse III Paul Sabatier University, University hospital of Toulouse, Toulouse, France
| | - Laurent Loufrani
- University of Angers, Angers, France
- CNRS UMR-6214, Angers, France
- INSERM UMRS-1083, Angers, France
- UMR-S1144, Faculty of Pharmacy, Paris Descartes University, Paris, France, and Assistance Publique Hôpitaux de Paris, Department of Biochemistry, Cochin Hospital, Paris, France
- University hospital (CHU) of Angers, Angers, France
| | - Vincent Procaccio
- University of Angers, Angers, France
- CNRS UMR-6214, Angers, France
- INSERM UMRS-1083, Angers, France
- University hospital (CHU) of Angers, Angers, France
| | - Daniel Henrion
- University of Angers, Angers, France
- CNRS UMR-6214, Angers, France
- INSERM UMRS-1083, Angers, France
- CARFI (Cardiovascular Function In vitro) facility, Angers, France
- University hospital (CHU) of Angers, Angers, France
- * E-mail:
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16
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McSweeney SR, Warabi E, Siow RCM. Nrf2 as an Endothelial Mechanosensitive Transcription Factor: Going With the Flow. Hypertension 2015; 67:20-9. [PMID: 26597822 DOI: 10.1161/hypertensionaha.115.06146] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Shane R McSweeney
- From the Cardiovascular Division, British Heart Foundation Centre of Research Excellence, Faculty of Life Sciences and Medicine, King's College London, London, United Kingdom (S.R.M., R.C.M.S.); and Faculty of Medicine, University of Tsukuba, Tsukuba, Japan (E.W.)
| | - Eiji Warabi
- From the Cardiovascular Division, British Heart Foundation Centre of Research Excellence, Faculty of Life Sciences and Medicine, King's College London, London, United Kingdom (S.R.M., R.C.M.S.); and Faculty of Medicine, University of Tsukuba, Tsukuba, Japan (E.W.)
| | - Richard C M Siow
- From the Cardiovascular Division, British Heart Foundation Centre of Research Excellence, Faculty of Life Sciences and Medicine, King's College London, London, United Kingdom (S.R.M., R.C.M.S.); and Faculty of Medicine, University of Tsukuba, Tsukuba, Japan (E.W.).
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17
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Chang CT, Chien MH, Yang KL, Yu CC, Hsu JF, Wang IK, Lim PS, Huang CC. Nitric oxide production and blood pressure reduction during haemodialysis. Nephrology (Carlton) 2015; 19:562-7. [PMID: 24839907 DOI: 10.1111/nep.12280] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/13/2014] [Indexed: 12/19/2022]
Abstract
AIM A decrease of systolic blood pressure in excess of 20 mmHg during haemodialysis treatment (IDD) is common for haemodialysis patients. Intradialytic hypotension (IDH) is symptomatic IDD by definition. Overproduction of nitric oxide (NO) is a possible cause of IDD. Dialysate nitrate and nitrite amount can be used as an indicator of intradialysis NO production. Our aim was to find the predictor of NO production in IDD patients. METHODS Partial dialysate samples were collected during the whole haemodialysis session and total dialysate nitrate and nitrite amount was measured to assess the association of intradialysis NO production with blood pressure change. RESULTS There were 31 IDD patients and 71 patients who did not develop IDD (NIDD) included in the study. Among the IDD patients, 13 were IDH patients with a mean systolic blood pressure lower than that of the other 18 symptomless IDD patients (96.6 ± 3.4 mmHg vs 125.0 ± 3.8 mmHg, P<0.001). The median value of NO production was higher in the IDD than in the NIDD patients (447.7 μg vs 238.8 μg, P<0.001). The NO production correlated linearly with blood pressure reduction (R=0.487, P<0.001). The multivariate analysis showed that NO production was positively associated with predialysis systolic blood pressure. CONCLUSION Nitric oxide production during haemodialysis was higher in IDD than in NIDD patients. IDH often occurred when systolic blood pressure was reduced to below 100 mmHg. The amount of NO produced during haemodialysis, which may be associated with predialysis systolic blood pressure, can be used to predict intradialysis blood pressure decrease.
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Affiliation(s)
- Chiz-Tzung Chang
- Division of Nephrology, China Medical University Hospital, Taichung, Taiwan; College of Medicine, China Medical University, Taichung, Taiwan
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18
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Onetti Y, Dantas AP, Pérez B, Cugota R, Chamorro A, Planas AM, Vila E, Jiménez-Altayó F. Middle cerebral artery remodeling following transient brain ischemia is linked to early postischemic hyperemia: a target of uric acid treatment. Am J Physiol Heart Circ Physiol 2015; 308:H862-74. [PMID: 25637543 DOI: 10.1152/ajpheart.00001.2015] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/02/2015] [Accepted: 01/28/2015] [Indexed: 12/26/2022]
Abstract
Ischemia impairs blood supply to the brain, and reperfusion is important to restore cerebral blood flow (CBF) and rescue neurons from cell death. However, reperfusion can induce CBF values exceeding the basal values before ischemia. This hyperemic effect has been associated with a worse ischemic brain damage, albeit the mechanisms that contribute to infarct expansion are not clear. In this study, we investigated the influence of early postischemic hyperemia on brain damage and middle cerebral artery (MCA) properties and the effect of treatment with the endogenous antioxidant uric acid (UA). The MCA was occluded for 90 min followed by 24 h reperfusion in adult male Sprague-Dawley rats. Cortical CBF increases at reperfusion beyond 20% of basal values were taken as indicative of hyperemia. UA (16 mg/kg) or vehicle (Locke's buffer) was administered intravenously 135 min after MCA occlusion. Hyperemic compared with nonhyperemic rats showed MCA wall thickening (sham: 22.4 ± 0.8 μm; nonhyperemic: 23.1 ± 1.2 μm; hyperemic: 27.8 ± 0.9 at 60 mmHg; P < 0.001, hyperemic vs. sham) involving adventitial cell proliferation, increased oxidative stress, and interleukin-18, and more severe brain damage. Thus MCA remodeling after ischemia-reperfusion takes place under vascular oxidative and inflammatory stress conditions linked to hyperemia. UA administration attenuated MCA wall thickening, induced passive lumen expansion, and reduced brain damage in hyperemic rats, although it did not increase brain UA concentration. We conclude that hyperemia at reperfusion following brain ischemia induces vascular damage that can be attenuated by administration of the endogenous antioxidant UA.
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Affiliation(s)
- Yara Onetti
- Facultat de Medicina, Departament de Farmacologia, Terapèutica i Toxicologia, Institut de Neurociències, Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - Ana P Dantas
- Institut Clínic del Tòrax, Institut d'Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain
| | - Belén Pérez
- Facultat de Medicina, Departament de Farmacologia, Terapèutica i Toxicologia, Institut de Neurociències, Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - Roger Cugota
- Facultat de Medicina, Departament de Farmacologia, Terapèutica i Toxicologia, Institut de Neurociències, Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - Angel Chamorro
- Functional Unit of Cerebrovascular Diseases, Hospital Clínic de Barcelona, Institut d'Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain; and
| | - Anna M Planas
- Departament d'Isquèmia Cerebral i Neurodegeneració, Institut de Recerca Biomèdica, Consejo Superior de Investigaciones Científicas, Institut d'Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain
| | - Elisabet Vila
- Facultat de Medicina, Departament de Farmacologia, Terapèutica i Toxicologia, Institut de Neurociències, Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - Francesc Jiménez-Altayó
- Facultat de Medicina, Departament de Farmacologia, Terapèutica i Toxicologia, Institut de Neurociències, Universitat Autònoma de Barcelona, Bellaterra, Spain;
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Tanweer O, Wilson TA, Metaxa E, Riina HA, Meng H. A comparative review of the hemodynamics and pathogenesis of cerebral and abdominal aortic aneurysms: lessons to learn from each other. J Cerebrovasc Endovasc Neurosurg 2014; 16:335-49. [PMID: 25599042 PMCID: PMC4296046 DOI: 10.7461/jcen.2014.16.4.335] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2014] [Revised: 10/13/2014] [Accepted: 10/29/2014] [Indexed: 12/28/2022] Open
Abstract
OBJECTIVE Cerebral aneurysms (CAs) and abdominal aortic aneurysms (AAAs) are degenerative vascular pathologies that manifest as abnormal dilations of the arterial wall. They arise with different morphologies in different types of blood vessels under different hemodynamic conditions. Although treated as different pathologies, we examine common pathways in their hemodynamic pathogenesis in order to elucidate mechanisms of formation. MATERIALS AND METHODS A systematic review of the literature was performed. Current concepts on pathogenesis and hemodynamics were collected and compared. RESULTS CAs arise as saccular dilations on the cerebral arteries of the circle of Willis under high blood flow, high wall shear stress (WSS), and high wall shear stress gradient (WSSG) conditions. AAAs arise as fusiform dilations on the infrarenal aorta under low blood flow, low, oscillating WSS, and high WSSG conditions. While at opposite ends of the WSS spectrum, they share high WSSG, a critical factor in arterial remodeling. This alone may not be enough to initiate aneurysm formation, but may ignite a cascade of downstream events that leads to aneurysm development. Despite differences in morphology and the structure, CAs and AAAs share many histopathological and biomechanical characteristics. Endothelial cell damage, loss of elastin, and smooth muscle cell loss are universal findings in CAs and AAAs. Increased matrix metalloproteinases and other proteinases, reactive oxygen species, and inflammation also contribute to the pathogenesis of both aneurysms. CONCLUSION Our review revealed similar pathways in seemingly different pathologies. We also highlight the need for cross-disciplinary studies to aid in finding similarities between pathologies.
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Affiliation(s)
- Omar Tanweer
- Department of Neurosurgery, New York University School of Medicine, NY, United States
| | - Taylor A Wilson
- Department of Neurosurgery, New York University School of Medicine, NY, United States
| | - Eleni Metaxa
- Foundation for Research and Technology - Hellas Institute of Applied and Computational Mathematics, Crete, Greece
| | - Howard A Riina
- Department of Neurosurgery, New York University School of Medicine, NY, United States
| | - Hui Meng
- Toshiba Stroke Research Center, University at Buffalo, NY, United States. ; Department of Mechanical and Aerospace Engineering, University at Buffalo, NY, United States. ; Department of Neurosurgery, University at Buffalo, NY, United States
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20
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Staiculescu MC, Foote C, Meininger GA, Martinez-Lemus LA. The role of reactive oxygen species in microvascular remodeling. Int J Mol Sci 2014; 15:23792-835. [PMID: 25535075 PMCID: PMC4284792 DOI: 10.3390/ijms151223792] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2014] [Revised: 12/05/2014] [Accepted: 12/10/2014] [Indexed: 02/07/2023] Open
Abstract
The microcirculation is a portion of the vascular circulatory system that consists of resistance arteries, arterioles, capillaries and venules. It is the place where gases and nutrients are exchanged between blood and tissues. In addition the microcirculation is the major contributor to blood flow resistance and consequently to regulation of blood pressure. Therefore, structural remodeling of this section of the vascular tree has profound implications on cardiovascular pathophysiology. This review is focused on the role that reactive oxygen species (ROS) play on changing the structural characteristics of vessels within the microcirculation. Particular attention is given to the resistance arteries and the functional pathways that are affected by ROS in these vessels and subsequently induce vascular remodeling. The primary sources of ROS in the microcirculation are identified and the effects of ROS on other microcirculatory remodeling phenomena such as rarefaction and collateralization are briefly reviewed.
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Affiliation(s)
- Marius C Staiculescu
- Dalton Cardiovascular Research Center, and Department of Medical Pharmacology and Physiology, University of Missouri, Columbia, MO 65211, USA.
| | - Christopher Foote
- Dalton Cardiovascular Research Center, and Department of Medical Pharmacology and Physiology, University of Missouri, Columbia, MO 65211, USA.
| | - Gerald A Meininger
- Dalton Cardiovascular Research Center, and Department of Medical Pharmacology and Physiology, University of Missouri, Columbia, MO 65211, USA.
| | - Luis A Martinez-Lemus
- Dalton Cardiovascular Research Center, and Department of Medical Pharmacology and Physiology, University of Missouri, Columbia, MO 65211, USA.
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21
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Adekola H, Romero R, Chaemsaithong P, Korzeniewski SJ, Dong Z, Yeo L, Hassan SS, Chaiworapongsa T. Endocan, a putative endothelial cell marker, is elevated in preeclampsia, decreased in acute pyelonephritis, and unchanged in other obstetrical syndromes. J Matern Fetal Neonatal Med 2014; 28:1621-32. [PMID: 25211383 PMCID: PMC4412749 DOI: 10.3109/14767058.2014.964676] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Objective: Endocan, a dermatan sulphate proteoglycan produced by endothelial cells, is considered a biomarker for endothelial cell activation/dysfunction. Preeclampsia is characterized by systemic vascular inflammation, and endothelial cell activation/dysfunction. Therefore, the objectives of this study were to determine whether: (1) plasma endocan concentrations in preeclampsia differ from those in uncomplicated pregnancies; (2) changes in plasma endocan concentration relate to the severity of preeclampsia, and whether these changes are specific or observed in other obstetrical syndromes such as small-for-gestational age (SGA), fetal death (FD), preterm labor (PTL) or preterm prelabor rupture of membranes (PROM); (3) a correlation exists between plasma concentration of endocan and angiogenic (placental growth factor or PlGF)/anti-angiogenic factors (soluble vascular endothelial growth factor receptor or sVEGFR-1, and soluble endoglin or sEng) among pregnancies complicated by preeclampsia; and (4) plasma endocan concentrations in patients with preeclampsia and acute pyelonephritis (both conditions in which there is endothelial cell activation) differ. Method: This cross-sectional study included the following groups: (1) uncomplicated pregnancy (n = 130); (2) preeclampsia (n = 102); (3) pregnant women without preeclampsia who delivered an SGA neonate (n = 51); (4) FD (n = 49); (5) acute pyelonephritis (AP; n = 35); (6) spontaneous PTL (n = 75); and (7) preterm PROM (n = 64). Plasma endocan concentrations were determined in all groups, and PIGF, sEng and VEGFR-1 plasma concentrations were measured by ELISA in the preeclampsia group. Results: (1) Women with preeclampsia had a significantly higher median plasma endocan concentration than those with uncomplicated pregnancies (p = 0.004); (2) among women with preeclampsia, the median plasma endocan concentration did not differ significantly according to disease severity (p = 0.1), abnormal uterine artery Doppler velocimetry (p = 0.7) or whether diagnosis was made before or after 34 weeks gestational age (p = 0.3); (3) plasma endocan concentration in women with preeclampsia correlated positively with plasma anti-angiogenic factor concentrations [sVEGFR-1: Spearman rho 0.34, p = 0.001 and sEng: Spearman rho 0.30, p = 0.003]; (4) pregnancies complicated by acute pyelonephritis with bacteremia had a lower median plasma endocan concentration than pregnancies complicated by acute pyelonephritis without bacteremia (p = 0.004), as well as uncomplicated pregnancies (p = 0.001); and (5) there was no significant difference in the median plasma endocan concentration between uncomplicated pregnancies and those complicated by FD, delivery of an SGA neonate, PTL or preterm PROM (other members of the “great obstetrical syndromes”; each p > 0.05). Conclusion: Median maternal plasma endocan concentrations were higher preeclampsia and lower in acute pyelonephritis with bacteremia than in uncomplicated pregnancy. No significant difference was observed in the median plasma endocan concentration between other great obstetrical syndromes and uncomplicated pregnancies. The difference in the direction of change of endocan in preeclampsia and acute pyelonephritis with bacteremia may be consistent with the view that both disease entities differ in pathogenic mechanisms, despite their associations with systemic vascular inflammation and endothelial cell activation/dysfunction.
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Affiliation(s)
- Henry Adekola
- a Perinatology Research Branch, Program for Perinatal Research and Obstetrics, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, NIH , Bethesda , MD (Detroit, MI) , USA
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Tarhouni K, Freidja ML, Guihot AL, Vessieres E, Grimaud L, Toutain B, Lenfant F, Arnal JF, Loufrani L, Henrion D. Role of estrogens and age in flow-mediated outward remodeling of rat mesenteric resistance arteries. Am J Physiol Heart Circ Physiol 2014; 307:H504-14. [DOI: 10.1152/ajpheart.00986.2013] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
In resistance arteries, a chronic increase in blood flow induces hypertrophic outward remodeling. This flow-mediated remodeling (FMR) is absent in male rats aged 10 mo and more. As FMR depends on estrogens in 3-mo-old female rats, we hypothesized that it might be preserved in 12-mo-old female rats. Blood flow was increased in vivo in mesenteric resistance arteries after ligation of the side arteries in 3- and 12-mo-old male and female rats. After 2 wk, high-flow (HF) and normal-flow (NF) arteries were isolated for in vitro analysis. Arterial diameter and cross-sectional area increased in HF arteries compared with NF arteries in 3-mo-old male and female rats. In 12-mo-old rats, diameter increased only in female rats. Endothelial nitric oxide synthase expression and endothelium-mediated relaxation were higher in HF arteries than in NF arteries in all groups. ERK1/2 phosphorylation, NADPH oxidase subunit expression levels, and arterial contractility to KCl and to phenylephrine were greater in HF vessels than in NF vessels in 12-mo-old male rats only. Ovariectomy in 12-mo-old female rats induced a similar pattern with an increased contractility without diameter increase in HF arteries. Treatment of 12-mo-old male rats and ovariectomized female rats with hydralazine, the antioxidant tempol, or the angiotensin II type 1 receptor blocker candesartan restored HF remodeling and normalized arterial contractility in HF vessels. Thus, we found that FMR of resistance arteries remains efficient in 12-mo-old female rats compared with age-matched male rats. A balance between estrogens and vascular contractility might preserve FMR in mature female rats.
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Affiliation(s)
- K. Tarhouni
- L'Université Nantes Angers Le Mans University and University of Angers, Angers, France
| | - M. L. Freidja
- L'Université Nantes Angers Le Mans University and University of Angers, Angers, France
| | - A. L. Guihot
- Unité Mixte de Recherche 6214, Centre National de la Recherche Scientifique, Angers, France
| | | | - L. Grimaud
- L'Université Nantes Angers Le Mans University and University of Angers, Angers, France
- CHU d'Angers, Angers, France; and
| | - B. Toutain
- L'Université Nantes Angers Le Mans University and University of Angers, Angers, France
| | - F. Lenfant
- U858, Institut National de la Santé et de la Recherche Médicale, Université Toulouse III Paul Sabatier, CHU de Toulouse, Toulouse, France
| | - J. F. Arnal
- U858, Institut National de la Santé et de la Recherche Médicale, Université Toulouse III Paul Sabatier, CHU de Toulouse, Toulouse, France
| | - L. Loufrani
- L'Université Nantes Angers Le Mans University and University of Angers, Angers, France
- Unité Mixte de Recherche 6214, Centre National de la Recherche Scientifique, Angers, France
- U1083, Institut National de la Santé et de la Recherche Médicale, Angers, France
- CHU d'Angers, Angers, France; and
| | - D. Henrion
- L'Université Nantes Angers Le Mans University and University of Angers, Angers, France
- Unité Mixte de Recherche 6214, Centre National de la Recherche Scientifique, Angers, France
- U1083, Institut National de la Santé et de la Recherche Médicale, Angers, France
- CHU d'Angers, Angers, France; and
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Time-related alteration in flow- (shear stress-) mediated remodeling in resistance arteries from spontaneously hypertensive rats. Int J Hypertens 2014; 2014:859793. [PMID: 24900916 PMCID: PMC4034663 DOI: 10.1155/2014/859793] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2013] [Revised: 03/31/2014] [Accepted: 03/31/2014] [Indexed: 11/17/2022] Open
Abstract
Hypertension is a major risk factor for cardiovascular disorders. As flow-mediated outward remodeling has a key role in postischemic revascularization, we investigated this remodeling in mesenteric resistance arteries of normotensive (WKY) and spontaneously hypertensive rats (SHRs) aged 3 to 9 months. Sequential ligation of mesenteric resistance arteries allowed modifying blood flow in vivo, thus exposing arteries to low, normal, or high flow. After 1, 3, 8, or 24 weeks, arteries were isolated for in vitro study. High flow (HF) induced outward hypertrophic remodeling in WKY rats after 1 week and persisted until 24 weeks without change in wall to lumen ratio. In SHRs, diameter increase was delayed, occurring only after 3 weeks. Nevertheless, it was reduced at 8 weeks and no longer significant after 24 weeks. In parallel, media cross-section area increased more with time in SHRs than in WKY rats and this was associated with increased contractility and oxidative stress with decreased NO-dependent relaxation. Low flow induced progressive inward remodeling until 24 weeks in both strains with excessive hypertrophy in SHRs. Thus, a chronic increase in flow induced transitory diameter expansion and long-lasting hypertrophy in SHRs. This could contribute to the higher susceptibility of hypertensive subjects to ischemic diseases.
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Hsiu H, Hsu CL, Hu HF, Hsiao FC, Yang SH. Complexity analysis of beat-to-beat skin-surface laser-Doppler signals in diabetic subjects. Microvasc Res 2014; 93:9-13. [DOI: 10.1016/j.mvr.2014.02.009] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2013] [Revised: 02/18/2014] [Accepted: 02/20/2014] [Indexed: 12/23/2022]
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Tarhouni K, Guihot AL, Vessières E, Toutain B, Procaccio V, Grimaud L, Loufrani L, Lenfant F, Arnal JF, Henrion D. Determinants of flow-mediated outward remodeling in female rodents: respective roles of age, estrogens, and timing. Arterioscler Thromb Vasc Biol 2014; 34:1281-9. [PMID: 24700123 DOI: 10.1161/atvbaha.114.303404] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
OBJECTIVE Flow (shear stress)-mediated outward remodeling (FMR) of resistance arteries is a key adaptive process allowing collateral growth after arterial occlusion but declining with age. 17-β-estradiol (E2) has a key role in this process through activation of estrogen receptor α (ERα). Thus, we investigated the impact of age and timing for estrogen efficacy on FMR. APPROACH AND RESULTS Female rats, 3 to 18 months old, were submitted to surgery to increase blood flow locally in 1 mesenteric artery in vivo. High-flow and normal-flow arteries were collected 2 weeks later for in vitro analysis. Diameter increased by 27% in high-flow arteries compared with normal-flow arteries in 3-month-old rats. The amplitude of remodeling declined with age (12% in 18-month-old rats) in parallel with E2 blood level and E2 substitution failed restoring remodeling in 18-month-old rats. Ovariectomy of 3-, 9-, and 12-month-old rats abolished FMR, which was restored by immediate E2 replacement. Nevertheless, this effect of E2 was absent 9 months after ovariectomy. In this latter group, ERα and endothelial nitric oxide synthase expression were reduced by half compared with age-matched rats recently ovariectomized. FMR did not occur in ERα(-/-) mice, whereas it was decreased by 50% in ERα(+/-) mice, emphasizing the importance of gene dosage in high-flow remodeling. CONCLUSIONS E2 deprivation, rather than age, leads to decline in FMR, which can be prevented by early exogenous E2. However, delayed E2 replacement was ineffective on FMR, underlining the importance of timing of this estrogen action.
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Affiliation(s)
- Kahena Tarhouni
- From the LUNAM (L'université Nantes, Le Mans et Angers) University and University of Angers, Angers, France (K.T., B.T., V.P., L.G., D.H.); Centre National de la Recherche Scientifique 6214, Angers, France (A.L.G., L.L., D.H.); Institut National de la Santé et de la Recherche Médicale (INSERM) U1083, Angers, France (D.H.); Centre Hospitalo-Universitaire d'Angers, Angers, France (E.V., V.P., D.H.); and INSERM U1048, Toulouse III Paul Sabatier University, CHU de Toulouse, Toulouse, France (F.L., J.F.A.)
| | - Anne-Laure Guihot
- From the LUNAM (L'université Nantes, Le Mans et Angers) University and University of Angers, Angers, France (K.T., B.T., V.P., L.G., D.H.); Centre National de la Recherche Scientifique 6214, Angers, France (A.L.G., L.L., D.H.); Institut National de la Santé et de la Recherche Médicale (INSERM) U1083, Angers, France (D.H.); Centre Hospitalo-Universitaire d'Angers, Angers, France (E.V., V.P., D.H.); and INSERM U1048, Toulouse III Paul Sabatier University, CHU de Toulouse, Toulouse, France (F.L., J.F.A.)
| | - Emilie Vessières
- From the LUNAM (L'université Nantes, Le Mans et Angers) University and University of Angers, Angers, France (K.T., B.T., V.P., L.G., D.H.); Centre National de la Recherche Scientifique 6214, Angers, France (A.L.G., L.L., D.H.); Institut National de la Santé et de la Recherche Médicale (INSERM) U1083, Angers, France (D.H.); Centre Hospitalo-Universitaire d'Angers, Angers, France (E.V., V.P., D.H.); and INSERM U1048, Toulouse III Paul Sabatier University, CHU de Toulouse, Toulouse, France (F.L., J.F.A.)
| | - Bertrand Toutain
- From the LUNAM (L'université Nantes, Le Mans et Angers) University and University of Angers, Angers, France (K.T., B.T., V.P., L.G., D.H.); Centre National de la Recherche Scientifique 6214, Angers, France (A.L.G., L.L., D.H.); Institut National de la Santé et de la Recherche Médicale (INSERM) U1083, Angers, France (D.H.); Centre Hospitalo-Universitaire d'Angers, Angers, France (E.V., V.P., D.H.); and INSERM U1048, Toulouse III Paul Sabatier University, CHU de Toulouse, Toulouse, France (F.L., J.F.A.)
| | - Vincent Procaccio
- From the LUNAM (L'université Nantes, Le Mans et Angers) University and University of Angers, Angers, France (K.T., B.T., V.P., L.G., D.H.); Centre National de la Recherche Scientifique 6214, Angers, France (A.L.G., L.L., D.H.); Institut National de la Santé et de la Recherche Médicale (INSERM) U1083, Angers, France (D.H.); Centre Hospitalo-Universitaire d'Angers, Angers, France (E.V., V.P., D.H.); and INSERM U1048, Toulouse III Paul Sabatier University, CHU de Toulouse, Toulouse, France (F.L., J.F.A.)
| | - Linda Grimaud
- From the LUNAM (L'université Nantes, Le Mans et Angers) University and University of Angers, Angers, France (K.T., B.T., V.P., L.G., D.H.); Centre National de la Recherche Scientifique 6214, Angers, France (A.L.G., L.L., D.H.); Institut National de la Santé et de la Recherche Médicale (INSERM) U1083, Angers, France (D.H.); Centre Hospitalo-Universitaire d'Angers, Angers, France (E.V., V.P., D.H.); and INSERM U1048, Toulouse III Paul Sabatier University, CHU de Toulouse, Toulouse, France (F.L., J.F.A.)
| | - Laurent Loufrani
- From the LUNAM (L'université Nantes, Le Mans et Angers) University and University of Angers, Angers, France (K.T., B.T., V.P., L.G., D.H.); Centre National de la Recherche Scientifique 6214, Angers, France (A.L.G., L.L., D.H.); Institut National de la Santé et de la Recherche Médicale (INSERM) U1083, Angers, France (D.H.); Centre Hospitalo-Universitaire d'Angers, Angers, France (E.V., V.P., D.H.); and INSERM U1048, Toulouse III Paul Sabatier University, CHU de Toulouse, Toulouse, France (F.L., J.F.A.)
| | - Francoise Lenfant
- From the LUNAM (L'université Nantes, Le Mans et Angers) University and University of Angers, Angers, France (K.T., B.T., V.P., L.G., D.H.); Centre National de la Recherche Scientifique 6214, Angers, France (A.L.G., L.L., D.H.); Institut National de la Santé et de la Recherche Médicale (INSERM) U1083, Angers, France (D.H.); Centre Hospitalo-Universitaire d'Angers, Angers, France (E.V., V.P., D.H.); and INSERM U1048, Toulouse III Paul Sabatier University, CHU de Toulouse, Toulouse, France (F.L., J.F.A.)
| | - Jean-Francois Arnal
- From the LUNAM (L'université Nantes, Le Mans et Angers) University and University of Angers, Angers, France (K.T., B.T., V.P., L.G., D.H.); Centre National de la Recherche Scientifique 6214, Angers, France (A.L.G., L.L., D.H.); Institut National de la Santé et de la Recherche Médicale (INSERM) U1083, Angers, France (D.H.); Centre Hospitalo-Universitaire d'Angers, Angers, France (E.V., V.P., D.H.); and INSERM U1048, Toulouse III Paul Sabatier University, CHU de Toulouse, Toulouse, France (F.L., J.F.A.)
| | - Daniel Henrion
- From the LUNAM (L'université Nantes, Le Mans et Angers) University and University of Angers, Angers, France (K.T., B.T., V.P., L.G., D.H.); Centre National de la Recherche Scientifique 6214, Angers, France (A.L.G., L.L., D.H.); Institut National de la Santé et de la Recherche Médicale (INSERM) U1083, Angers, France (D.H.); Centre Hospitalo-Universitaire d'Angers, Angers, France (E.V., V.P., D.H.); and INSERM U1048, Toulouse III Paul Sabatier University, CHU de Toulouse, Toulouse, France (F.L., J.F.A.).
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Yapislar H, Taskin E. L-carnosine alters some hemorheologic and lipid peroxidation parameters in nephrectomized rats. Med Sci Monit 2014; 20:399-405. [PMID: 24614724 PMCID: PMC3958568 DOI: 10.12659/msm.890528] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
Background Chronic kidney disease (CKD) is a major health problem worldwide. Oxidative stress is one of the mediators of this disease. Systemic complications of oxidative stress are involved in the pathogenesis of hypertension, endothelial dysfunction, shortened erythrocyte lifespan, deformability, and nitric oxide (NO) dysfunction. L-carnosine is known as an antioxidant. In this study, our aim was to investigate the effect of carnosine on hemorheologic and cardiovascular parameters in CKD-induced rats. Material/Methods We used 4-month-old male Sprague-Dawley rats divided into 4 groups of 6 rats each. Three days after subtotal nephrectomy and sham operations, the surviving rats were divided into the 4 groups; 1) Sham (S), 2) Sham+Carnosine (S-C), 3) Subtotal nephrectomy (Nx), and 4) Subtotal nephrectomy + Carnosine (N-C). Carnosine was injected intraperitoneally (i.p.) (50 mg/kg) for 15 days. The control group received the same volume of physiological saline. Results In CKD rats, malondialdehyde (MDA) levels were increased, and NO and RBC deformability were decreased compared to Sham. Carnosine treatment decreased MDA levels, improved RBC (red blood cell) ability to deform, and increased NO levels. However, carnosine did not affect blood pressure levels in these rats. Conclusions We found that carnosine has beneficial effects on CKD in terms of lipid peroxidation and RBC deformability. Carnosine may have a healing effect in microcirculation level, but may not have any effect on systemic blood pressure in CKD-induced rats.
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Affiliation(s)
- Hande Yapislar
- Department of Physiology, Istanbul Bilim University, Medical Faculty, Istanbul, Turkey
| | - Eylem Taskin
- Department of Physiotherapy and Rehabilitation, Istanbul Bilim University, School of Health Sciences, Istanbul, Turkey
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Freidja ML, Vessières E, Toutain B, Guihot AL, Custaud MA, Loufrani L, Fassot C, Henrion D. AGEs breaking and antioxidant treatment improves endothelium-dependent dilation without effect on flow-mediated remodeling of resistance arteries in old Zucker diabetic rats. Cardiovasc Diabetol 2014; 13:55. [PMID: 24581152 PMCID: PMC3944955 DOI: 10.1186/1475-2840-13-55] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/07/2014] [Accepted: 02/26/2014] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND A chronic increase in blood flow in resistance arteries is associated with increased lumen diameter (outward remodeling) and improved endothelium (NO)-mediated relaxation. Flow-mediated remodeling of resistance arteries is essential for revascularization in ischemic diseases. Nevertheless, it is impaired in 12 to 24-month old rats and in young Zucker Diabetic Fatty (ZDF) rats due to advanced glycation end products (AGEs) and oxidative stress. As type 2 diabetes occurs preferentially in older subjects we investigated flow-mediated remodeling and the effect of the AGEs breaker ALT-711 associated or not to the antioxidant TEMPOL in one-year old lean (LZ) and ZDF rats. METHODS Mesenteric resistance arteries were exposed to high (HF) or normal blood flow (NF) in vivo. They were collected after 2 weeks for in vitro analysis. RESULTS In LZ rats, diameter expansion did not occur despite a significant increase in blood flow in HF arteries. Nevertheless, endothelium-mediated relaxation was higher in HF than in NF arteries. ALT-711, alone or in combination with TEMPOL, restored outward remodeling in HF arteries in association with AGEs reduction. TEMPOL alone had no effect. ALT-711, TEMPOL or the combination of the 2 drugs did not significantly affect endothelium-mediated relaxation in HF and NF arteries.In ZDF rats, diameter did not increase despite the increase in blood flow and endothelium-mediated relaxation was further decreased in HF arteries in association with AGEs accumulation and excessive oxidative stress. In both NF and HF arteries, endothelium-mediated relaxation was lower in ZDF than in LZ rats. ALT-711, TEMPOL or their combination did not improve remodeling (diameter equivalent in HF and NF arteries). In parallel, they did not reduce AGEs level and did not improve MMPs activity. Nevertheless, ALT-711 and TEMPOL partly improved endothelium-mediated relaxation through a reduction of oxidative stress and the association of ALT-711 and TEMPOL fully restored relaxation to the level found in LZ rats. CONCLUSIONS ALT-711 did not improve outward remodeling in mature ZDF rats but it reduced oxidative stress and consequently improved endothelium-dependent relaxation. In mature LZ rats, ALT-711 improved outward remodeling and reduced AGEs level. Consequently, AGEs breaking is differently useful in ageing whether it is associated with diabetes or not.
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Shen Y, Lu L, Ding FH, Sun Z, Zhang RY, Zhang Q, Yang ZK, Hu J, Chen QJ, Shen WF. Association of increased serum glycated albumin levels with low coronary collateralization in type 2 diabetic patients with stable angina and chronic total occlusion. Cardiovasc Diabetol 2013; 12:165. [PMID: 24209601 PMCID: PMC4225762 DOI: 10.1186/1475-2840-12-165] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2013] [Accepted: 11/05/2013] [Indexed: 01/04/2023] Open
Abstract
BACKGROUND We investigated whether serum glycated albumin (GA) levels are related to coronary collateralization in type 2 diabetic patients with chronic total occlusion. METHODS Blood levels of GA and glycosylated hemoglobin (HbA1c) were determined in 317 diabetic and 117 non-diabetic patients with stable angina and angiographic total occlusion of at least one major coronary artery. The degree of collaterals supplying the distal aspect of a total occlusion from the contra-lateral vessel was graded as low (Rentrop score of 0 or 1) or high collateralization (Rentrop score of 2 or 3). RESULTS For diabetic patients, GA (21.2 ± 6.5% vs. 18.7 ± 5.6%, P < 0.001) but not HbA1c levels (7.0 ± 1.1% vs. 6.8 ± 1.3%, P = 0.27) was significantly elevated in low collateralization than in high collateralization group, and correlated inversely with Rentrop score (Spearmen's r = -0.28, P < 0.001; Spearmen's r = -0.10, P = 0.09, respectively). There was a trend towards a larger area under the curve of GA compared with that of HbA1c for detecting the presence of low collateralization (0.64 vs. 0.58, P = 0.15). In non-diabetic patients, both GA and HbA1c levels did not significantly differ regardless the status of coronary collateralization. In multivariable analysis, female gender, age > 65 years, smoke, non-hypertension, duration of diabetes > 10 years, metabolic syndrome, eGFR < 90 ml/min/1.73 m2, and GA > 18.3% were independently determinants for low collateralization in diabetic patients. CONCLUSIONS Increased GA levels in serum are associated with impaired collateral growth in type 2 diabetic patients with stable angina and chronic total occlusion.
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Affiliation(s)
- Ying Shen
- Department of Cardiology, Shanghai Rui Jin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, People’s Republic of China
| | - Lin Lu
- Department of Cardiology, Shanghai Rui Jin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, People’s Republic of China
- Institute of Cardiovascular Diseases, Shanghai Jiaotong University School of Medicine, Shanghai 200025, People’s Republic of China
| | - Feng Hua Ding
- Department of Cardiology, Shanghai Rui Jin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, People’s Republic of China
| | - Zhen Sun
- Department of Cardiology, Shanghai Rui Jin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, People’s Republic of China
| | - Rui Yan Zhang
- Department of Cardiology, Shanghai Rui Jin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, People’s Republic of China
| | - Qi Zhang
- Department of Cardiology, Shanghai Rui Jin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, People’s Republic of China
| | - Zheng Kun Yang
- Department of Cardiology, Shanghai Rui Jin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, People’s Republic of China
| | - Jian Hu
- Department of Cardiology, Shanghai Rui Jin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, People’s Republic of China
| | - Qiu Jing Chen
- Institute of Cardiovascular Diseases, Shanghai Jiaotong University School of Medicine, Shanghai 200025, People’s Republic of China
| | - Wei Feng Shen
- Department of Cardiology, Shanghai Rui Jin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, People’s Republic of China
- Institute of Cardiovascular Diseases, Shanghai Jiaotong University School of Medicine, Shanghai 200025, People’s Republic of China
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Anunciato IF, Lobo RR, Coelho EB, Verri WA, Eckeli AL, Évora PRB, Nobre F, Moriguti JC, Ferriolli E, Lima NKDC. Big endothelin-1 and nitric oxide in hypertensive elderly patients with and without obstructive sleep apnea-hypopnea syndrome. Arq Bras Cardiol 2013; 101:344-51. [PMID: 23979778 PMCID: PMC4062371 DOI: 10.5935/abc.20130179] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2012] [Accepted: 03/15/2013] [Indexed: 11/23/2022] Open
Abstract
Background The role of oxidative stress in hypertensive elderly patients with
obstructive sleep apnea-hypopnea syndrome (OSAHS) is unknown. Objective The purpose was to evaluate the levels of big endothelin-1 (Big ET-1) and
nitric oxide (NO) in elderly hypertensive patients with and without moderate
to severe OSAHS. Methods Volunteers were hospitalized for 24 h. We obtained the following data: body
mass index (BMI); 24-ambulatory blood pressure monitoring; and current
medication. Arterial blood was collected at 7pm and 7am for determining
plasma NO and Big ET-1 levels. Pulse oximetry was performed during sleep.
Pearson's or Spearman's correlation and univariate analysis of variance were
used for statistical analysis. Results We studied 25 subjects with OSAHS (group 1) and 12 without OSAHS (group 2)
aged 67.0 ± 6.5 years and 67.8 ± 6.8 years, respectively. No significant
differences were observed between the groups in BMI; number of hours of
sleep; 24-h systolic and diastolic BPs; awake BP, sleep BP and medications
to control BP between groups. No differences were detected in plasma Big
ET-1 and NO levels at 19:00 h, but plasma Big ET-1 levels at 7:00 h were
higher in group 1 (p = 0.03). In group 1, a negative correlation was also
observed between the mean arterial oxyhemoglobin saturation level, 24-h
systolic BP (p = 0.03, r = −0.44), and Big ET-1 (p = 0.04, r = −0.41). Conclusions On comparing elderly hypertensive patients with and without OSAHS having
similar BP and BMI, we observed higher Big ET-1 levels After sleep in the
OSAHS group. NO levels did not differ between the hypertensive patients with
or without OSAHS.
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Affiliation(s)
- Iara Felicio Anunciato
- Mailing Address: Iara Felicio Anunciato, Rua Natalicia Frederico de
Vicenti, 30, JD Maria Imaculada I. Postal Code 14340-000, Brodowski, SP -
Brazil. E-mail: ,
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COX-2-derived prostanoids and oxidative stress additionally reduce endothelium-mediated relaxation in old type 2 diabetic rats. PLoS One 2013; 8:e68217. [PMID: 23874545 PMCID: PMC3706542 DOI: 10.1371/journal.pone.0068217] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2013] [Accepted: 05/29/2013] [Indexed: 01/05/2023] Open
Abstract
Endothelial dysfunction in resistance arteries alters end organ perfusion in type 2 diabetes. Superoxides and cyclooxygenase-2 (COX-2) derivatives have been shown separately to alter endothelium-mediated relaxation in aging and diabetes but their role in the alteration of vascular tone in old diabetic subjects is not clear, especially in resistance arteries. Consequently, we investigated the role of superoxide and COX-2-derivatives on endothelium-dependent relaxation in 3 and 12 month-old Zucker diabetic fatty (ZDF) and lean (LZ) rats. Mesenteric resistance arteries were isolated and vascular tone was investigated using wire-myography. Endothelium (acetylcholine)-dependent relaxation was lower in ZDF than in LZ rats (60 versus 84% maximal relaxation in young rats and 41 versus 69% in old rats). Blocking NO production with L-NAME was less efficient in old than in young rats. L-NAME had no effect in old ZDF rats although eNOS expression level in old ZDF rats was similar to that in old LZ rats. Superoxide level and NADPH-oxidase subunits (p67phox and gp91phox) expression level were greater in ZDF than in LZ rats and were further increased by aging in ZDF rats. In young ZDF rats reducing superoxide level with tempol restored acetylcholine-dependent relaxation to the level of LZ rats. In old ZDF rats tempol improved acetylcholine-dependent relaxation without increasing it to the level of LZ rats. COX-2 (immunolabelling and Western-blot) was present in arteries of ZDF rats and absent in LZ rats. In old ZDF rats arterial COX-2 level was higher than in young ZDF rats. COX-2 blockade with NS398 restored in part acetylcholine-dependent relaxation in arteries of old ZDF rats and the combination of tempol and NS398 fully restored relaxation in control (LZ rats) level. Accordingly, superoxide production and COX-2 derivatives together reduced endothelium-dependent relaxation in old ZDF rats whereas superoxides alone attenuated relaxation in young ZDF or old LZ rats.
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Abstract
Haemodynamic factors influence all forms of vascular growth (vasculogenesis, angiogenesis, arteriogenesis). Because of its prominent role in atherosclerosis, shear stress has gained particular attention, but other factors such as circumferential stretch are equally important to maintain the integrity and to (re)model the vascular network. While these haemodynamic forces are crucial determinants of the appearance and the structure of the vasculature, they are in turn subjected to structural changes in the blood vessels, such as an increased arterial stiffness in chronic arterial hypertension and ageing. This results in an interplay between the various forces (biomechanical forces) and the involved vascular elements. Although many molecular mediators of biomechanical forces still need to be identified, there is plenty of evidence for the causal role of these forces in vascular growth processes, which will be summarized in this review. In addition, we will discuss the effects of concomitant diseases and disorders on these processes by altering either the biomechanics or their transduction into biological signals. Particularly endothelial dysfunction, diabetes, hypercholesterolaemia, and age affect mechanosensing and -transduction of flow signals, thereby underpinning their influence on cardiovascular health. Finally, current approaches to modify biomechanical forces to therapeutically modulate vascular growth in humans will be described.
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Affiliation(s)
- Imo E Hoefer
- Laboratory of Experimental Cardiology, University Medical Center, G02.523, Heidelberglaan 100, Utrecht 3584 CX, The Netherlands.
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Vessières E, Belin de Chantemèle EJ, Guihot AL, Jardel A, Toutain B, Loufrani L, Henrion D. Cyclooxygenase-2-derived prostanoids reduce inward arterial remodeling induced by blood flow reduction in old obese Zucker rat mesenteric arteries. Vascul Pharmacol 2013; 58:356-62. [PMID: 23524072 DOI: 10.1016/j.vph.2013.03.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2012] [Revised: 03/01/2013] [Accepted: 03/04/2013] [Indexed: 12/11/2022]
Abstract
Obesity is associated with altered arterial structure and function leading to arterial narrowing in most vascular beds, especially when associated with aging. Nevertheless, mesenteric blood flow remains elevated in obese rats, although the effect of aging remains unknown. We investigated mesenteric artery narrowing following blood flow reduction in vivo in 3- and 12-month-old obese Zucker rats. After 21 days, inward remodeling occurred in low flow (LF) arteries in young and old lean rats and in young obese rats (30% diameter reduction). Diameter did not significantly decrease in old obese rats. Phenylephrine-mediated contraction was reduced by approximately 20% in LF arteries in all groups but in old obese rat arteries in which the decrease reached 80%. LF arteries expressed cyclooxygenase-2 and blood 6-keto-PGF1alpha (prostacyclin metabolite) was elevated in old obese rats. In old obese rats, acute cyclooxygenase-2 blockade restored phenylephrine-mediated contraction in LF arteries and chronic cyclooxygenase-2 blockade restored inward remodeling and contractility to control level. Thus, in old obese rats, cyclooxygenase-2-derived prostacyclin prevented the diameter reduction induced by a chronic decrease in blood flow. This adaptation is in favor of a preserved perfusion of the mesentery by contrast with other vascular territories, possibly amplifying the vascular disorders occurring in obesity.
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Diabetes research in Vascular Pharmacology - an overview of 2011-2012. Vascul Pharmacol 2013; 58:251-2. [PMID: 23428913 DOI: 10.1016/j.vph.2013.02.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2013] [Accepted: 02/11/2013] [Indexed: 11/23/2022]
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