1
|
Stefens SJM, van Vliet N, IJpma A, Burger J, Li Y, van Heijningen PM, Lindeman JHN, Majoor-Krakauer D, Verhagen HJM, Kanaar R, Essers J, van der Pluijm I. Increased vascular smooth muscle cell senescence in aneurysmal Fibulin-4 mutant mice. NPJ AGING 2024; 10:31. [PMID: 38902222 PMCID: PMC11189919 DOI: 10.1038/s41514-024-00154-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Accepted: 04/26/2024] [Indexed: 06/22/2024]
Abstract
Aortic aneurysms are dilatations of the aorta that can rupture when left untreated. We used the aneurysmal Fibulin-4R/R mouse model to further unravel the underlying mechanisms of aneurysm formation. RNA sequencing of 3-month-old Fibulin-4R/R aortas revealed significant upregulation of senescence-associated secretory phenotype (SASP) factors and key senescence factors, indicating the involvement of senescence. Analysis of aorta histology and of vascular smooth muscle cells (VSMCs) in vitro confirmed the senescent phenotype of Fibulin-4R/R VSMCs by revealing increased SA-β-gal, p21, and p16 staining, increased IL-6 secretion, increased presence of DNA damage foci and increased nuclei size. Additionally, we found that p21 luminescence was increased in the dilated aorta of Fibulin-4R/R|p21-luciferase mice. Our studies identify a cellular aging cascade in Fibulin-4 aneurysmal disease, by revealing that Fibulin-4R/R aortic VSMCs have a pronounced SASP and a senescent phenotype that may underlie aortic wall degeneration. Additionally, we demonstrated the therapeutic effect of JAK/STAT and TGF-β pathway inhibition, as well as senolytic treatment on Fibulin-4R/R VSMCs in vitro. These findings can contribute to improved therapeutic options for aneurysmal disease aimed at reducing senescent cells.
Collapse
Affiliation(s)
- Sanne J M Stefens
- Department of Molecular Genetics, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Nicole van Vliet
- Department of Molecular Genetics, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Arne IJpma
- Department of Pathology, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Joyce Burger
- Department of Molecular Genetics, Erasmus University Medical Center, Rotterdam, The Netherlands
- Department of Clinical Genetics, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Yunlei Li
- Department of Pathology, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Paula M van Heijningen
- Department of Molecular Genetics, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Jan H N Lindeman
- Department of Vascular Surgery, Leiden University Medical Center, Leiden, The Netherlands
| | | | - Hence J M Verhagen
- Department of Vascular Surgery, Cardiovascular Institute, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Roland Kanaar
- Department of Molecular Genetics, Erasmus University Medical Center, Rotterdam, The Netherlands
- Department of Radiotherapy, Erasmus University Medical Center, Rotterdam, The Netherlands
- Oncode Institute, Erasmus MC Cancer Institute, Erasmus University Medical Center, Rotterdam, Netherlands
| | - Jeroen Essers
- Department of Molecular Genetics, Erasmus University Medical Center, Rotterdam, The Netherlands.
- Department of Vascular Surgery, Cardiovascular Institute, Erasmus University Medical Center, Rotterdam, The Netherlands.
- Department of Radiotherapy, Erasmus University Medical Center, Rotterdam, The Netherlands.
| | - Ingrid van der Pluijm
- Department of Molecular Genetics, Erasmus University Medical Center, Rotterdam, The Netherlands.
- Department of Vascular Surgery, Cardiovascular Institute, Erasmus University Medical Center, Rotterdam, The Netherlands.
| |
Collapse
|
2
|
Hillsley AB, McLachlan CS. Assessment of Registered Clinical Trial Designs: Comparison of L-Arginine and/or L-Citrulline Interventions for Hypertension. Pharmaceuticals (Basel) 2024; 17:477. [PMID: 38675437 PMCID: PMC11053694 DOI: 10.3390/ph17040477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2024] [Revised: 04/02/2024] [Accepted: 04/03/2024] [Indexed: 04/28/2024] Open
Abstract
BACKGROUND L-Arginine (Arg) is an essential amino acid and a precursor for the synthesis of vascular nitric oxide, while L-Citrulline is a non-essential amino acid substrate for increasing L-arginine. Both L-arginine and L-Citrulline in translational studies may acutely lower the blood pressure. Current meta-analysis for L-arginine or L-Citrulline interventions in blood pressure have identified significant heterogeneity. Clinical trial evidence for L-arginine or L-Citrulline in chronic blood pressure reduction in the general population requires an examination of trial designs, as not all translational studies may have influenced vascular reactivity. Our aims are to explore whether L-arginine and L-citrulline intervention trials in chronic blood pressure consider standardized end points relevant to the general adult populations. METHODS A step-wise search on clinicaltrials.gov, the U.S. Library of Medicine registry for clinical trials, was performed including the following keyword search parameters: "completed" "L-Citrulline" "L-arginine" trial", and "adults", involving "blood pressure" reduction as a primary end point in adult humans. RESULTS Of the forty-four completed trials, only five were included for analysis. Following the careful evaluation of trial design, we observed heterogeneity across participant inclusion criteria (population sample size, age range, sex), interventional design (dosages, duration), and primary outcomes, measured with respect to changes in diastolic or systolic blood pressure. CONCLUSION In conclusion, there is a lack of robust trial design evidence to suggest that L-arginine or L-Citrulline, based on current RCTs in the general population, have an overall positive effect on vascular endothelial reactivity and a beneficial chronic blood pressure-lowering effect. Indeed, conclusions drawn from human meta-analysis studies have been heterogenous between studies, which may be attributed to study design heterogeneity, including differences in sample population, age, and blood pressure at the time of entry. Inconsistencies in the study design poses a challenge for systematic reviews and meta-analysis to accurately assess the effect size and impact of L-arginine or L-citrulline on both systolic and diastolic blood pressure.
Collapse
Affiliation(s)
| | - Craig Steven McLachlan
- Center for Healthy Futures, Torrens University Australia, Surry Hills, NSW 2010, Australia;
| |
Collapse
|
3
|
Ma S, Xie X, Yuan R, Xin Q, Miao Y, Leng SX, Chen K, Cong W. Vascular Aging and Atherosclerosis: A Perspective on Aging. Aging Dis 2024:AD.2024.0201-1. [PMID: 38502584 DOI: 10.14336/ad.2024.0201-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Accepted: 02/01/2024] [Indexed: 03/21/2024] Open
Abstract
Vascular aging (VA) is recognized as a pivotal factor in the development and progression of atherosclerosis (AS). Although various epidemiological and clinical research has demonstrated an intimate connection between aging and AS, the candidate mechanisms still require thorough examination. This review adopts an aging-centric perspective to deepen the comprehension of the intricate relationship between biological aging, vascular cell senescence, and AS. Various aging-related physiological factors influence the physical system's reactions, including oxygen radicals, inflammation, lipids, angiotensin II, mechanical forces, glucose levels, and insulin resistance. These factors cause endothelial dysfunction, barrier damage, sclerosis, and inflammation for VA and promote AS via distinct or shared pathways. Furthermore, the increase of senescent cells inside the vascular tissues, caused by genetic damage, dysregulation, secretome changes, and epigenetic modifications, might be the primary cause of VA.
Collapse
Affiliation(s)
- Shudong Ma
- Faculty of Chinese Medicine, Macau University of Science and Technology, Macau, China
- Laboratory of Cardiovascular Diseases, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Xuena Xie
- Laboratory of Cardiovascular Diseases, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
- School of Pharmacy, Macau University of Science and Technology, Macau, China
| | - Rong Yuan
- Laboratory of Cardiovascular Diseases, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
- National Clinical Research Center for Chinese Medicine Cardiology, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Qiqi Xin
- Laboratory of Cardiovascular Diseases, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
- National Clinical Research Center for Chinese Medicine Cardiology, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Yu Miao
- Laboratory of Cardiovascular Diseases, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
- National Clinical Research Center for Chinese Medicine Cardiology, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Sean Xiao Leng
- Division of Geriatric Medicine and Gerontology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD 21224, USA
| | - Keji Chen
- Faculty of Chinese Medicine, Macau University of Science and Technology, Macau, China
- Laboratory of Cardiovascular Diseases, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
- National Clinical Research Center for Chinese Medicine Cardiology, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Weihong Cong
- Laboratory of Cardiovascular Diseases, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
- National Clinical Research Center for Chinese Medicine Cardiology, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
- School of Pharmacy, Macau University of Science and Technology, Macau, China
| |
Collapse
|
4
|
Andrés CMC, Pérez de la Lastra JM, Andrés Juan C, Plou FJ, Pérez-Lebeña E. Chemistry of Hydrogen Sulfide-Pathological and Physiological Functions in Mammalian Cells. Cells 2023; 12:2684. [PMID: 38067112 PMCID: PMC10705518 DOI: 10.3390/cells12232684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 11/02/2023] [Accepted: 11/20/2023] [Indexed: 12/18/2023] Open
Abstract
Hydrogen sulfide (H2S) was recognized as a gaseous signaling molecule, similar to nitric oxide (-NO) and carbon monoxide (CO). The aim of this review is to provide an overview of the formation of hydrogen sulfide (H2S) in the human body. H2S is synthesized by enzymatic processes involving cysteine and several enzymes, including cystathionine-β-synthase (CBS), cystathionine-γ-lyase (CSE), cysteine aminotransferase (CAT), 3-mercaptopyruvate sulfurtransferase (3MST) and D-amino acid oxidase (DAO). The physiological and pathological effects of hydrogen sulfide (H2S) on various systems in the human body have led to extensive research efforts to develop appropriate methods to deliver H2S under conditions that mimic physiological settings and respond to various stimuli. These functions span a wide spectrum, ranging from effects on the endocrine system and cellular lifespan to protection of liver and kidney function. The exact physiological and hazardous thresholds of hydrogen sulfide (H2S) in the human body are currently not well understood and need to be researched in depth. This article provides an overview of the physiological significance of H2S in the human body. It highlights the various sources of H2S production in different situations and examines existing techniques for detecting this gas.
Collapse
Affiliation(s)
| | - José Manuel Pérez de la Lastra
- Institute of Natural Products and Agrobiology, CSIC-Spanish Research Council, Avda. Astrofísico Fco. Sánchez, 3, 38206 La Laguna, Spain
| | - Celia Andrés Juan
- Cinquima Institute and Department of Organic Chemistry, Faculty of Sciences, Valladolid University, Paseo de Belén, 7, 47011 Valladolid, Spain;
| | - Francisco J. Plou
- Institute of Catalysis and Petrochemistry, CSIC-Spanish Research Council, 28049 Madrid, Spain;
| | | |
Collapse
|
5
|
Mbituyimana B, Adhikari M, Qi F, Shi Z, Fu L, Yang G. Microneedle-based cell delivery and cell sampling for biomedical applications. J Control Release 2023; 362:692-714. [PMID: 37689252 DOI: 10.1016/j.jconrel.2023.09.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Revised: 08/16/2023] [Accepted: 09/04/2023] [Indexed: 09/11/2023]
Abstract
Cell-based therapeutics are novel therapeutic strategies that can potentially treat many presently incurable diseases through novel mechanisms of action. Cell therapies may benefit from the ease, safety, and efficacy of administering therapeutic cells. Despite considerable recent technological and biological advances, several barriers remain to the clinical translation and commercialization of cell-based therapies, including low patient compliance, personal handling inconvenience, poor biosafety, and limited biocompatibility. Microneedles (MNs) are emerging as a promising biomedical device option for improved cell delivery with little invasion, pain-free administration, and simplicity of disposal. MNs have shown considerable promise in treating a wide range of diseases and present the potential to improve cell-based therapies. In this review, we first summarized the latest advances in the various types of MNs developed for cell delivery and cell sampling. Emphasis was given to the design and fabrication of various types of MNs based on their structures and materials. Then we focus on the recent biomedical applications status of MNs-mediated cell delivery and sampling, including tissue repair (wound healing, heart repair, and endothelial repair), cancer treatment, diabetes therapy, cell sampling, and other applications. Finally, the current status of clinical application, potential perspectives, and the challenges for clinical translation are also highlighted.
Collapse
Affiliation(s)
- Bricard Mbituyimana
- Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Manjila Adhikari
- Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Fuyu Qi
- Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Zhijun Shi
- Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China.
| | - Lina Fu
- College of Medicine, Huanghuai University, Zhumadian, Henan 463000, China; Zhumadian Central Hospital, Zhumadian, Henan 463000, China.
| | - Guang Yang
- Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China.
| |
Collapse
|
6
|
El-Sherif AM, Rashad A, Rabie MM, Hegazy M, Adel M, Albialy M, El-Shandawely M, Mahmoud EA. Resource utilization in management of spontaneous intracerebral hemorrhage without systemic risk factors. Does early surgical decompression matter? Clin Neurol Neurosurg 2023; 231:107829. [PMID: 37331206 DOI: 10.1016/j.clineuro.2023.107829] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 06/03/2023] [Accepted: 06/05/2023] [Indexed: 06/20/2023]
Abstract
BACKGROUND Even though different subtypes of spontaneous ICH are frequently linked to a poor prognosis, their causes, pathological features, and prognoses vary. Atypical intracerebral hemorrhage is the subtype of spontaneous ICH that usually occurs due to an underlying localized vascular lesion. It is unrelated to systemic vascular risk factors, mostly affects children and young adults and is associated with a relatively good outcome. This fact should be considered when planning the evaluation and treatment. Investigating the cause of this subtype is fundamental to providing optimal management. However, if resources do not allow completing the investigations, the cause will be more difficult to discover. Treatment decisions will be made under stress to save the patient's life, especially with rapidly deteriorating patients. METHODS We described three cases of spontaneous ICH without systemic risk factors where the bleeding source could not be determined before surgery due to a lack of resources, preventing preoperative vascular investigation. Knowing that the atypical ICH has a distinct identity, regarding etiology and prognosis, encouraged the surgeons to resort to early surgical decompression as an alternative plan. We reviewed the literature searching for supporting evidence. RESULTS The results of treatment of the presented cases were satisfactory. The lack of reported similar cases was brought to light by a literature analysis that sought to provide backing for the proposed management strategy. In the end, we supplied two graphic organizers to help readers remember the different types and treatment of hemorrhagic stroke. CONCLUSION There isn't enough evidence to show that there are other ways to treat atypical intracerebral haemorrhage when resources are limited. The presented cases highlight the importance of decisionmaking in resource-constrained situations when patient outcomes can be improved.
Collapse
Affiliation(s)
- Ahmed M El-Sherif
- Al-Azhar University, Faculty of Medicine, Nasr City, 11651 Cairo, Egypt.
| | - Alaa Rashad
- Al-Azhar University, Faculty of Medicine, Nasr City, 11651 Cairo, Egypt
| | | | | | - Mostafa Adel
- Al-Azhar University, Faculty of Medicine, Al-Hussein Hospital, Egypt
| | - Mohammad Albialy
- Al-Azhar University, Faculty of Medicine, Nasr City, 11651 Cairo, Egypt
| | | | - Ehab Adel Mahmoud
- Uppsala University Hospital, Radiology Department, Neurointervention Unit, Sweden
| |
Collapse
|
7
|
Suda M, Paul KH, Minamino T, Miller JD, Lerman A, Ellison-Hughes GM, Tchkonia T, Kirkland JL. Senescent Cells: A Therapeutic Target in Cardiovascular Diseases. Cells 2023; 12:1296. [PMID: 37174697 PMCID: PMC10177324 DOI: 10.3390/cells12091296] [Citation(s) in RCA: 20] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 04/27/2023] [Accepted: 04/29/2023] [Indexed: 05/15/2023] Open
Abstract
Senescent cell accumulation has been observed in age-associated diseases including cardiovascular diseases. Senescent cells lack proliferative capacity and secrete senescence-associated secretory phenotype (SASP) factors that may cause or worsen many cardiovascular diseases. Therapies targeting senescent cells, especially senolytic drugs that selectively induce senescent cell removal, have been shown to delay, prevent, alleviate, or treat multiple age-associated diseases in preclinical models. Some senolytic clinical trials have already been completed or are underway for a number of diseases and geriatric syndromes. Understanding how cellular senescence affects the various cell types in the cardiovascular system, such as endothelial cells, vascular smooth muscle cells, fibroblasts, immune cells, progenitor cells, and cardiomyocytes, is important to facilitate translation of senotherapeutics into clinical interventions. This review highlights: (1) the characteristics of senescent cells and their involvement in cardiovascular diseases, focusing on the aforementioned cardiovascular cell types, (2) evidence about senolytic drugs and other senotherapeutics, and (3) the future path and clinical potential of senotherapeutics for cardiovascular diseases.
Collapse
Affiliation(s)
- Masayoshi Suda
- Department of Physiology and Biomedical Engineering, Mayo Clinic, 200 First St., S.W., Rochester, MN 55905, USA
- Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, 3-1-3 Hongo, Bunkyo-ku, Tokyo 113-8421, Japan
| | - Karl H. Paul
- Department of Physiology and Biomedical Engineering, Mayo Clinic, 200 First St., S.W., Rochester, MN 55905, USA
- Department of Physiology and Pharmacology, Karolinska Institutet, Solnavägen 9, 171 65 Solna, Sweden
| | - Tohru Minamino
- Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, 3-1-3 Hongo, Bunkyo-ku, Tokyo 113-8421, Japan
- Japan Agency for Medical Research and Development-Core Research for Evolutionary Medical Science and Technology (AMED-CREST), Japan Agency for Medical Research and Development, Tokyo 100-0004, Japan
| | - Jordan D. Miller
- Division of Cardiovascular Surgery, Mayo Clinic College of Medicine, 200 First St., S.W., Rochester, MN 55905, USA
| | - Amir Lerman
- Department of Cardiovascular Medicine, Mayo Clinic, 200 First St., S.W., Rochester, MN 55905, USA
| | - Georgina M. Ellison-Hughes
- Centre for Human and Applied Physiological Sciences, School of Basic and Medical Biosciences, Faculty of Life Sciences & Medicine, Guy’s Campus, King’s College London, London SE1 1UL, UK
- Centre for Stem Cells and Regenerative Medicine, School of Basic and Medical Biosciences, Faculty of Life Sciences & Medicine, Guy’s Campus, King’s College London, London SE1 1UL, UK
| | - Tamar Tchkonia
- Department of Physiology and Biomedical Engineering, Mayo Clinic, 200 First St., S.W., Rochester, MN 55905, USA
| | - James L. Kirkland
- Department of Physiology and Biomedical Engineering, Mayo Clinic, 200 First St., S.W., Rochester, MN 55905, USA
- Division of General Internal Medicine, Department of Medicine, Mayo Clinic, 200 First St., S.W., Rochester, MN 55905, USA
| |
Collapse
|
8
|
Afsar B, Afsar RE. Hypertension and cellular senescence. Biogerontology 2023:10.1007/s10522-023-10031-4. [PMID: 37010665 DOI: 10.1007/s10522-023-10031-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Accepted: 03/21/2023] [Indexed: 04/04/2023]
Abstract
Essential or primary hypertension is a wordwide health problem. Elevated blood pressure (BP) is closely associated not only with increased chronological aging but also with biological aging. There are various common pathways that play a role in cellular aging and BP regulation. These include but not limited to inflammation, oxidative stress, mitochondrial dysfunction, air pollution, decreased klotho activity increased renin angiotensin system activation, gut dysbiosis etc. It has already been shown that some anti-hypertensive drugs have anti-senescent actions and some senolytic drugs have BP lowering effects. In this review, we have summarized the common mechanisms underlying cellular senescence and HT and their relationships. We further reviewed the effect of various antihypertensive medications on cellular senescence and suggest further issues to be studied.
Collapse
Affiliation(s)
- Baris Afsar
- Department of Nephrology, School of Medicine, Suleyman Demirel University, Isparta, Turkey.
| | - Rengin Elsurer Afsar
- Department of Nephrology, School of Medicine, Suleyman Demirel University, Isparta, Turkey
| |
Collapse
|
9
|
Wang C, Reid G, Mackay CE, Hayes G, Bulte DP, Suri S. A Systematic Review of the Association Between Dementia Risk Factors and Cerebrovascular Reactivity. Neurosci Biobehav Rev 2023; 148:105140. [PMID: 36944391 DOI: 10.1016/j.neubiorev.2023.105140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Revised: 02/15/2023] [Accepted: 03/15/2023] [Indexed: 03/23/2023]
Abstract
Cumulative evidence suggests that impaired cerebrovascular reactivity (CVR), a regulatory response critical for maintaining neuronal health, is amongst the earliest pathological changes in dementia. However, we know little about how CVR is affected by dementia risk, prior to disease onset. Understanding this relationship would improve our knowledge of disease pathways and help inform preventative interventions. This systematic review investigates 59 studies examining how CVR (measured by magnetic resonance imaging) is affected by modifiable, non-modifiable, and clinical risk factors for dementia. We report that non-modifiable risk (older age and apolipoprotein ε4), some modifiable factors (diabetes, traumatic brain injury, hypertension) and some clinical factors (stroke, carotid artery occlusion, stenosis) were consistently associated with reduced CVR. We also note a lack of conclusive evidence on how other behavioural factors such as physical inactivity, obesity, or depression, affect CVR. This review explores the biological mechanisms underpinning these brain- behaviour associations, highlights evident gaps in the literature, and identifies the risk factors that could be managed to preserve CVR in an effort to prevent dementia.
Collapse
Affiliation(s)
- Congxiyu Wang
- Department of Psychiatry, University of Oxford, UK; Wellcome Centre for Integrative Neuroimaging, University of Oxford, UK
| | - Graham Reid
- Department of Psychiatry, University of Oxford, UK; Department of Experimental Psychology, University of Oxford, UK
| | - Clare E Mackay
- Department of Psychiatry, University of Oxford, UK; Wellcome Centre for Integrative Neuroimaging, University of Oxford, UK
| | - Genevieve Hayes
- Institute of Biomedical Engineering, University of Oxford, UK
| | - Daniel P Bulte
- Institute of Biomedical Engineering, University of Oxford, UK
| | - Sana Suri
- Department of Psychiatry, University of Oxford, UK; Wellcome Centre for Integrative Neuroimaging, University of Oxford, UK.
| |
Collapse
|
10
|
Yang M, Zhang M, Li Z, Liu J, Li Y, Yang Z, Wang X, Huang X, Yu B, Hou J, Liu Q. A landscape of Long non-coding RNAs reveals the leading transcriptome alterations in murine aorta during aging. Genomics 2023; 115:110573. [PMID: 36746218 DOI: 10.1016/j.ygeno.2023.110573] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Revised: 11/23/2022] [Accepted: 02/02/2023] [Indexed: 02/06/2023]
Abstract
Considerable studies have given convincing evidence of a forefront position for vascular aging in preventing cardiovascular disease. Various functions of Long non-coding RNAs (lncRNAs) are becoming increasingly distinct in aging-related diseases. This study aims at a better insight into the expression profile and mechanisms of lncRNAs in vascular senescence. High-throughput sequencing was used to detect the differential expression (DE) of lncRNAs and mRNAs in the aorta of 96 W and 8 W-old mice, while 1423 lncRNAs and 80 mRNAs were differentially expressed. By performing GO and KEGG enrichment analysis, we found that DE lncRNAs were mainly involved in purine metabolism and cGMP-PKG signaling pathways. In addition, a co-expression functional network of DE lncRNAs and DE mRNAs was constructed, and ENSMUST00000218874 could interact with 41 DE mRNAs, suggesting that it may play an essential role in vascular senescence. This study reveals DE lncRNAs in naturally aging vascular, which may provide new ideas and targets for aging-related cardiovascular diseases.
Collapse
Affiliation(s)
- Mengyue Yang
- The Key Laboratory of Myocardial Ischemia Organization, Chinese Ministry of Education, Harbin, Heilongjiang 150086, China; Department of Cardiology Organization, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150086, China
| | - Meng Zhang
- The Key Laboratory of Myocardial Ischemia Organization, Chinese Ministry of Education, Harbin, Heilongjiang 150086, China; Department of Cardiology Organization, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150086, China
| | - Zhaoying Li
- The Key Laboratory of Myocardial Ischemia Organization, Chinese Ministry of Education, Harbin, Heilongjiang 150086, China; Department of Cardiology Organization, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150086, China
| | - Jingbao Liu
- The Key Laboratory of Myocardial Ischemia Organization, Chinese Ministry of Education, Harbin, Heilongjiang 150086, China; Department of Cardiology Organization, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150086, China
| | - Yanchao Li
- The Key Laboratory of Myocardial Ischemia Organization, Chinese Ministry of Education, Harbin, Heilongjiang 150086, China; Department of Cardiology Organization, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150086, China
| | - Ziyu Yang
- The Key Laboratory of Myocardial Ischemia Organization, Chinese Ministry of Education, Harbin, Heilongjiang 150086, China; Department of Cardiology Organization, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150086, China
| | - Xuedong Wang
- The Key Laboratory of Myocardial Ischemia Organization, Chinese Ministry of Education, Harbin, Heilongjiang 150086, China; Department of Cardiology Organization, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150086, China
| | - Xingtao Huang
- The Key Laboratory of Myocardial Ischemia Organization, Chinese Ministry of Education, Harbin, Heilongjiang 150086, China; Department of Cardiology Organization, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150086, China
| | - Bo Yu
- The Key Laboratory of Myocardial Ischemia Organization, Chinese Ministry of Education, Harbin, Heilongjiang 150086, China; Department of Cardiology Organization, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150086, China
| | - Jingbo Hou
- The Key Laboratory of Myocardial Ischemia Organization, Chinese Ministry of Education, Harbin, Heilongjiang 150086, China; Department of Cardiology Organization, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150086, China.
| | - Qi Liu
- The Key Laboratory of Myocardial Ischemia Organization, Chinese Ministry of Education, Harbin, Heilongjiang 150086, China; Department of Cardiology Organization, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150086, China.
| |
Collapse
|
11
|
Liang Q, Zhou Z, Li H, Tao Q, Wang Y, Lin A, Xu J, Zhang B, Wu Y, Min H, Wang L, Song S, Wang D, Gao Q. Identification of pathological-related and diagnostic potential circular RNAs in Stanford type A aortic dissection. Front Cardiovasc Med 2023; 9:1074835. [PMID: 36712253 PMCID: PMC9880160 DOI: 10.3389/fcvm.2022.1074835] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Accepted: 12/21/2022] [Indexed: 01/15/2023] Open
Abstract
Introduction Stanford type A aortic dissection (TAAD) is one of the lethal macrovascular diseases caused by the invasion of blood into the media layer of ascending aortic wall. Inflammation, smooth muscle dysfunction, and extracellular matrix (ECM) degradation were regarded as the major pathology in affected tissue. However, the expression pattern and its regulation especially through circular RNAs (circRNAs) as an overall characteristic of TAAD molecular pathology remain unclear. Methods We employed CIRCexplorer2 to identify circRNAs based on the RNA sequencing (RNA-seq) data of human ascending aortic tissues to systematically assess the role of circRNA in the massive alterations of gene expression in TAAD aortas. The key circRNAs were determined by LASSO model and functionally annotated by competing endogenous RNAs (ceRNA) network and co-analysis with mRNA profile. The expression level and diagnostic capability of the 4 key circRNAs in peripheral serum were confirmed by real-time polymerase chain reaction (RT-PCR). Results The 4 key circRNAs, namely circPTGR1 (chr9:114341075-114348445[-]), circNOX4 (chr11:89069012-89106660[-]), circAMN1 (chr12:31854796-31862359[-]) and circUSP3 (chr15:63845913-63855207[+]), demonstrated a high power to discriminate between TAAD and control tissues, suggesting that these molecules stand for a major difference between the tissues at gene regulation level. Functionally, the ceRNA network of circRNA-miRNA-mRNA predicted by the online databases, combining gene set enrichment analysis (GSEA) and cell component prediction, revealed that the identified circRNAs covered all the aspects of primary TAAD pathology, centralized with increasing inflammatory factors and cells, and ECM destruction and loss of vascular inherent cells along with the circRNAs. Importantly, we validated the high concentration and diagnostic capability of the 4 key circRNAs in the peripheral serum in TAAD patients. Discussion This study reinforces the vital status of circRNAs in TAAD and the possibility of serving as promising diagnostic biomarkers.
Collapse
Affiliation(s)
- Qiao Liang
- Center for Translational Medicine and Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University, Nanjing, Jiangsu, China
| | - Zeyi Zhou
- Department of Thoracic and Cardiovascular Surgery, Institute of Cardiothoracic Vascular Disease, Nanjing University, Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, Jiangsu, China
| | - Hui Li
- Center for Translational Medicine and Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University, Nanjing, Jiangsu, China
| | - Qing Tao
- Center for Translational Medicine and Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University, Nanjing, Jiangsu, China
| | - Yali Wang
- Department of Thoracic and Cardiovascular Surgery, Institute of Cardiothoracic Vascular Disease, Nanjing University, Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, Jiangsu, China
| | - Anqi Lin
- Center for Translational Medicine and Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University, Nanjing, Jiangsu, China
| | - Jing Xu
- Center for Translational Medicine and Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University, Nanjing, Jiangsu, China
| | - Bin Zhang
- Center for Translational Medicine and Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University, Nanjing, Jiangsu, China,Central Laboratory, Nanjing Chest Hospital, Nanjing Medical University, Nanjing, China
| | - Yongzheng Wu
- Center for Translational Medicine and Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University, Nanjing, Jiangsu, China
| | - Haiyan Min
- Central Laboratory, The Second Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
| | - Lei Wang
- Department of Clinical Laboratory, Jiangsu Provincial Hospital of Integrated Chinese and Western Medicine, Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing, China
| | - Shiyu Song
- Center for Translational Medicine and Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University, Nanjing, Jiangsu, China
| | - Dongjin Wang
- Department of Thoracic and Cardiovascular Surgery, Institute of Cardiothoracic Vascular Disease, Nanjing University, Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, Jiangsu, China,*Correspondence: Qian Gao ✉
| | - Qian Gao
- Center for Translational Medicine and Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University, Nanjing, Jiangsu, China,Dongjin Wang ✉
| |
Collapse
|
12
|
Senescence-Associated Secretory Phenotype of Cardiovascular System Cells and Inflammaging: Perspectives of Peptide Regulation. Cells 2022; 12:cells12010106. [PMID: 36611900 PMCID: PMC9818427 DOI: 10.3390/cells12010106] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2022] [Revised: 12/23/2022] [Accepted: 12/24/2022] [Indexed: 12/28/2022] Open
Abstract
A senescence-associated secretory phenotype (SASP) and a mild inflammatory response characteristic of senescent cells (inflammaging) form the conditions for the development of cardiovascular diseases: atherosclerosis, coronary heart disease, and myocardial infarction. The purpose of the review is to analyze the pool of signaling molecules that form SASP and inflammaging in cells of the cardiovascular system and to search for targets for the action of vasoprotective peptides. The SASP of cells of the cardiovascular system is characterized by a change in the synthesis of anti-proliferative proteins (p16, p19, p21, p38, p53), cytokines characteristic of inflammaging (IL-1α,β, IL-4, IL-6, IL-8, IL-18, TNFα, TGFβ1, NF-κB, MCP), matrix metalloproteinases, adhesion molecules, and sirtuins. It has been established that peptides are physiological regulators of body functions. Vasoprotective polypeptides (liraglutide, atrial natriuretic peptide, mimetics of relaxin, Ucn1, and adropin), KED tripeptide, and AEDR tetrapeptide regulate the synthesis of molecules involved in inflammaging and SASP-forming cells of the cardiovascular system. This indicates the prospects for the development of drugs based on peptides for the treatment of age-associated cardiovascular pathology.
Collapse
|
13
|
Diabesity in Elderly Cardiovascular Disease Patients: Mechanisms and Regulators. Int J Mol Sci 2022; 23:ijms23147886. [PMID: 35887234 PMCID: PMC9318065 DOI: 10.3390/ijms23147886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 07/13/2022] [Accepted: 07/15/2022] [Indexed: 12/04/2022] Open
Abstract
Cardiovascular disease (CVD) is the leading cause of death in the world. In 2019, 550 million people were suffering from CVD and 18 million of them died as a result. Most of them had associated risk factors such as high fasting glucose, which caused 134 million deaths, and obesity, which accounted for 5.02 million deaths. Diabesity, a combination of type 2 diabetes and obesity, contributes to cardiac, metabolic, inflammation and neurohumoral changes that determine cardiac dysfunction (diabesity-related cardiomyopathy). Epicardial adipose tissue (EAT) is distributed around the myocardium, promoting myocardial inflammation and fibrosis, and is associated with an increased risk of heart failure, particularly with preserved systolic function, atrial fibrillation and coronary atherosclerosis. In fact, several hypoglycaemic drugs have demonstrated a volume reduction of EAT and effects on its metabolic and inflammation profile. However, it is necessary to improve knowledge of the diabesity pathophysiologic mechanisms involved in the development and progression of cardiovascular diseases for comprehensive patient management including drugs to optimize glucometabolic control. This review presents the mechanisms of diabesity associated with cardiovascular disease and their therapeutic implications.
Collapse
|
14
|
High Sucrose Ingestion during a Critical Period of Vessel Development Promotes the Synthetic Phenotype of Vascular Smooth Muscle Cells and Modifies Vascular Contractility Leading to Hypertension in Adult Rats. Int J Hypertens 2022; 2022:2298329. [PMID: 35774422 PMCID: PMC9239805 DOI: 10.1155/2022/2298329] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2022] [Revised: 04/11/2022] [Accepted: 04/27/2022] [Indexed: 12/29/2022] Open
Abstract
Cardiometabolic diseases, including hypertension, may result from exposure to high sugar diets during critical periods of development. Here, we studied the effect of sucrose ingestion during a critical period (CP) between postnatal days 12 and 28 of the rat on blood pressure, aortic histology, vascular smooth muscle phenotype, expression of metalloproteinases 2 and 9, and vascular contractility in adult rats and compared it with those of adult rats that received sucrose for 6 months and developed metabolic syndrome (MS). Blood pressure increased to a similar level in CP and MS rats. The diameter of lumen, media, and adventitia of aortas from CP rats was decreased. Muscle fibers were discontinuous. There was a decrease in the expression of alpha-actin in CP and MS rat aortas, suggesting a change to the secretory phenotype in vascular smooth muscle. Metalloproteinases 2 and 9 were decreased in CP and MS rats, suggesting that phenotype remains in an altered steady stationary state with little interchange of the vessel matrix. Aortic contraction to norepinephrine did not change, but aortic relaxation was diminished in CP and MS aortas. In conclusion, high sugar diets during the CP increase predisposition to hypertension in adults.
Collapse
|
15
|
Zha Y, Zhuang W, Yang Y, Zhou Y, Li H, Liang J. Senescence in Vascular Smooth Muscle Cells and Atherosclerosis. Front Cardiovasc Med 2022; 9:910580. [PMID: 35722104 PMCID: PMC9198250 DOI: 10.3389/fcvm.2022.910580] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Accepted: 05/04/2022] [Indexed: 12/12/2022] Open
Abstract
Vascular smooth muscle cells (VSMCs) are the primary cell type involved in the atherosclerosis process; senescent VSMCs are observed in both aged vessels and atherosclerotic plaques. Factors associated with the atherosclerotic process, including oxidative stress, inflammation, and calcium-regulating factors, are closely linked to senescence in VSMCs. A number of experimental studies using traditional cellular aging markers have suggested that anti-aging biochemical agents could be used to treat atherosclerosis. However, doubt has recently been cast on such potential due to the increasingly apparent complexity of VSMCs status and an incomplete understanding of the role that these cells play in the atherosclerosis process, as well as a lack of specific or spectrum-limited cellular aging markers. The utility of anti-aging drugs in atherosclerosis treatment should be reevaluated. Promotion of a healthy lifestyle, exploring in depth the characteristics of each cell type associated with atherosclerosis, including VSMCs, and development of targeted drug delivery systems will ensure efficacy whilst evaluation of the safety and tolerability of drug use should be key aims of future anti-atherosclerosis research. This review summarizes the characteristics of VSMC senescence during the atherosclerosis process, the factors regulating this process, as well as an overview of progress toward the development and application of anti-aging drugs.
Collapse
Affiliation(s)
- Yiwen Zha
- Medical College, Yangzhou University, Yangzhou, China
| | - Wenwen Zhuang
- Medical College, Yangzhou University, Yangzhou, China
| | - Yongqi Yang
- Medical College, Yangzhou University, Yangzhou, China
| | - Yue Zhou
- Medical College, Yangzhou University, Yangzhou, China
| | - Hongliang Li
- Medical College, Yangzhou University, Yangzhou, China
- Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, China
- *Correspondence: Hongliang Li,
| | - Jingyan Liang
- Medical College, Yangzhou University, Yangzhou, China
- Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, China
- Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases, Yangzhou University, Yangzhou, China
- Jingyan Liang,
| |
Collapse
|
16
|
Aronia melanocarpa Fruit Juice Modulates ACE2 Immunoexpression and Diminishes Age-Related Remodeling of Coronary Arteries in Rats. Foods 2022; 11:foods11091220. [PMID: 35563943 PMCID: PMC9105828 DOI: 10.3390/foods11091220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2022] [Revised: 04/16/2022] [Accepted: 04/20/2022] [Indexed: 12/04/2022] Open
Abstract
The aim of the study is to evaluate the effect of Aronia melanocarpa fruit juice (AMJ) supplementation on age-related coronary arteries remodeled in aged rat hearts. Male Wistar rats (n = 24) were divided into three groups: (1) young controls (CY), aged 2 months, without AMJ supplementation; (2) old controls (CO), aged 27 months, without AMJ supplementation; and (3) the AMJ group (A), which used 27-month old animals, supplemented orally with AMJ for 105 days. AMJ supplementation did not influence the wall-to-diameter parameter (Kernohan index) of the coronary arteries of test animals. Aged rats supplemented with AMJ showed a significant decrease in the amount of collagen fibers in their coronary tunica media, as compared with the old controls. The intensity of the immunoreaction for alpha smooth muscle actin (αSMA) in the coronary tunica media was significantly lower in the supplemented group than in the old controls. The intensity of the angiotensin-converting enzyme 2 (ACE2) immunoreaction in the coronary tunica media of the supplemented group was significantly higher than the one observed in the old controls. These results indicate the positive effects of AMJ supplementation on the age-dependent remodeling of coronary arteries and support for the preventive potential of antioxidant-rich functional food supplementation in age-related diseases.
Collapse
|
17
|
Xie Y, Liu L. Role of Chemerin/ChemR23 axis as an emerging therapeutic perspective on obesity-related vascular dysfunction. J Transl Med 2022; 20:141. [PMID: 35317838 PMCID: PMC8939091 DOI: 10.1186/s12967-021-03220-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Accepted: 12/27/2021] [Indexed: 02/08/2023] Open
Abstract
Sufficient epidemiological investigations demonstrate that there is a close correlation between obesity and vascular dysfunction. Nevertheless, specific mechanisms underlying this link remain currently unclear. Given the crucial and decisive role of vascular dysfunction in multitudinous diseases, various hypotheses had been proposed and numerous experiments were being carried out. One recognized view is that increased adipokine secretion following the expanded mass of white adipose tissue due to obesity contributes to the regulation of vascular function. Chemerin, as a neo-adipokine, whose systemic level is elevated in obesity, is believed as a regulator of adipogenesis, inflammation, and vascular dysfunction via binding its cell surface receptor, chemR23. Hence, this review aims to focus on the up-to-date proof on chemerin/chemR23 axis-relevant signaling pathways, emphasize the multifarious impacts of chemerin/chemR23 axis on vascular function regulation, raise certain unsettled questions to inspire further investigations, and explore the therapeutic possibilities targeting chemerin/chemR23.
Collapse
Affiliation(s)
- Yingying Xie
- Department of Cardiovascular Medicine, The Second Xiangya Hospital, Central South University, Changsha, China.,Research Institute of Blood Lipid and Atherosclerosis, Central South University, Changsha, China.,Modern Cardiovascular Disease Clinical Technology Research Center of Hunan Province, Changsha, China.,Cardiovascular Disease Research Center of Hunan Province, Changsha, China
| | - Ling Liu
- Department of Cardiovascular Medicine, The Second Xiangya Hospital, Central South University, Changsha, China. .,Research Institute of Blood Lipid and Atherosclerosis, Central South University, Changsha, China. .,Modern Cardiovascular Disease Clinical Technology Research Center of Hunan Province, Changsha, China. .,Cardiovascular Disease Research Center of Hunan Province, Changsha, China.
| |
Collapse
|
18
|
Yan Y, Cao Y, Ma Q, Wang K, Liao Y, Sun Y, Chen C, Hu J, Zheng W, Chu C, Wang Y, Mu J. Long-Term Blood Pressure Exposure From Childhood and Early Vascular Aging in Midlife: A 30-Year Prospective Cohort Study. Angiology 2022; 73:869-876. [PMID: 35232270 DOI: 10.1177/00033197221082712] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Early vascular aging (EVA) increases cardiovascular mortality, but its long-term determinants are unknown. We included 2098 participants with ≥4 blood pressure (BP) measurements from childhood to adulthood (from the Hanzhong Adolescent Hypertension Cohort study) to investigate the impact of child-to-adult cumulative BP exposure on EVA patterns in midlife. Participants with EVA had significantly higher long-term BP burden than those with normal vascular age in midlife despite being much younger. Child-to-adult cumulative burden and trends of systolic and diastolic BP were associated with vascular age (standardized regression coefficient [β] = .31 to .53; P < .001 for all). Higher cumulative systolic and diastolic BP exposure significantly increased the risk of EVA in midlife (odds ratio, OR=1.67 to 2.75, P < .05 for all). All associations were independent of socio-demographics and cardiovascular risk factors. Excluding participants who were receiving anti-hypertensive, antidiabetic, or lipid-lowering treatments did not substantially change the above associations. This study, for the first time, reported that high cumulative child-to-adult BP exposure accelerated the vascular aging process. Stabilizing BP across life course could be beneficial to vascular health in the long run.
Collapse
Affiliation(s)
- Yu Yan
- Department of Cardiology, First Affiliated Hospital of Medical School, 162798Xi'an Jiaotong University, Key Laboratory of Molecular Cardiology of Shaanxi Province, Key Laboratory of Environment and Genes Related to Diseases (Xi'an Jiaotong University), Ministry of Education, Shaanxi, China
| | - Yu Cao
- Department of Pediatrics, First Affiliated Hospital of Medical School, 162798Xi'an Jiaotong University, Xi'an, China
| | - Qiong Ma
- Department of Cardiology, First Affiliated Hospital of Medical School, 162798Xi'an Jiaotong University, Key Laboratory of Molecular Cardiology of Shaanxi Province, Key Laboratory of Environment and Genes Related to Diseases (Xi'an Jiaotong University), Ministry of Education, Shaanxi, China
| | - Keke Wang
- Department of Cardiology, First Affiliated Hospital of Medical School, 162798Xi'an Jiaotong University, Key Laboratory of Molecular Cardiology of Shaanxi Province, Key Laboratory of Environment and Genes Related to Diseases (Xi'an Jiaotong University), Ministry of Education, Shaanxi, China
| | - Yueyuan Liao
- Department of Cardiology, First Affiliated Hospital of Medical School, 162798Xi'an Jiaotong University, Key Laboratory of Molecular Cardiology of Shaanxi Province, Key Laboratory of Environment and Genes Related to Diseases (Xi'an Jiaotong University), Ministry of Education, Shaanxi, China
| | - Yue Sun
- Department of Cardiology, First Affiliated Hospital of Medical School, 162798Xi'an Jiaotong University, Key Laboratory of Molecular Cardiology of Shaanxi Province, Key Laboratory of Environment and Genes Related to Diseases (Xi'an Jiaotong University), Ministry of Education, Shaanxi, China
| | - Chen Chen
- Department of Cardiology, First Affiliated Hospital of Medical School, 162798Xi'an Jiaotong University, Key Laboratory of Molecular Cardiology of Shaanxi Province, Key Laboratory of Environment and Genes Related to Diseases (Xi'an Jiaotong University), Ministry of Education, Shaanxi, China
| | - Jiawen Hu
- Department of Cardiovascular Surgery, First Affiliated Hospital of Medical School, 162798Xi'an Jiaotong University, Xi'an, China
| | - Wenling Zheng
- Department of Cardiology, First Affiliated Hospital of Medical School, 162798Xi'an Jiaotong University, Key Laboratory of Molecular Cardiology of Shaanxi Province, Key Laboratory of Environment and Genes Related to Diseases (Xi'an Jiaotong University), Ministry of Education, Shaanxi, China
| | - Chao Chu
- Department of Cardiology, First Affiliated Hospital of Medical School, 162798Xi'an Jiaotong University, Key Laboratory of Molecular Cardiology of Shaanxi Province, Key Laboratory of Environment and Genes Related to Diseases (Xi'an Jiaotong University), Ministry of Education, Shaanxi, China
| | - Yang Wang
- Department of Cardiology, First Affiliated Hospital of Medical School, 162798Xi'an Jiaotong University, Key Laboratory of Molecular Cardiology of Shaanxi Province, Key Laboratory of Environment and Genes Related to Diseases (Xi'an Jiaotong University), Ministry of Education, Shaanxi, China
| | - Jianjun Mu
- Department of Cardiology, First Affiliated Hospital of Medical School, 162798Xi'an Jiaotong University, Key Laboratory of Molecular Cardiology of Shaanxi Province, Key Laboratory of Environment and Genes Related to Diseases (Xi'an Jiaotong University), Ministry of Education, Shaanxi, China
| |
Collapse
|
19
|
Ding YN, Wang HY, Chen HZ, Liu DP. Targeting senescent cells for vascular aging and related diseases. J Mol Cell Cardiol 2021; 162:43-52. [PMID: 34437878 DOI: 10.1016/j.yjmcc.2021.08.009] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Revised: 08/08/2021] [Accepted: 08/17/2021] [Indexed: 01/10/2023]
Abstract
Cardiovascular diseases are a serious threat to human health, especially in the elderly. Vascular aging makes people more susceptible to cardiovascular diseases due to significant dysfunction or senescence of vascular cells and maladaptation of vascular structure and function; moreover, vascular aging is currently viewed as a modifiable cardiovascular risk factor. To emphasize the relationship between senescent cells and vascular aging, we first summarize the roles of senescent vascular cells (endothelial cells, smooth muscle cells and immune cells) in the vascular aging process and inducers that contribute to cellular senescence. Then, we present potential strategies for directly targeting senescent cells (senotherapy) or preventively targeting senescence inducers (senoprevention) to delay vascular aging and the development of age-related vascular diseases. Finally, based on recent research, we note some important questions that still need to be addressed in the future.
Collapse
Affiliation(s)
- Yang-Nan Ding
- State Key Laboratory of Medical Molecular Biology, Department of Biochemistry and Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100005, People's Republic of China
| | - Hui-Yu Wang
- State Key Laboratory of Medical Molecular Biology, Department of Biochemistry and Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100005, People's Republic of China
| | - Hou-Zao Chen
- State Key Laboratory of Medical Molecular Biology, Department of Biochemistry and Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100005, People's Republic of China.
| | - De-Pei Liu
- State Key Laboratory of Medical Molecular Biology, Department of Biochemistry and Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100005, People's Republic of China.
| |
Collapse
|
20
|
Tan Q, Liang N, Zhang X, Li J. Dynamic Aging: Channeled Through Microenvironment. Front Physiol 2021; 12:702276. [PMID: 34366891 PMCID: PMC8334186 DOI: 10.3389/fphys.2021.702276] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Accepted: 06/23/2021] [Indexed: 12/16/2022] Open
Abstract
Aging process is a complicated process that involves deteriorated performance at multiple levels from cellular dysfunction to organ degeneration. For many years research has been focused on how aging changes things within cell. However, new findings suggest that microenvironments, circulating factors or inter-tissue communications could also play important roles in the dynamic progression of aging. These out-of-cell mechanisms pass on the signals from the damaged aging cells to other healthy cells or tissues to promote systematic aging phenotypes. This review discusses the mechanisms of how senescence and their secretome, NAD+ metabolism or circulating factors change microenvironments to regulate systematic aging, as well as the potential therapeutic strategies based on these findings for anti-aging interventions.
Collapse
Affiliation(s)
- Qing Tan
- State Key Laboratory of Medical Molecular Biology, Department of Biochemistry and Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Na Liang
- State Key Laboratory of Medical Molecular Biology, Department of Biochemistry and Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xiaoqian Zhang
- State Key Laboratory of Medical Molecular Biology, Department of Biochemistry and Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Jun Li
- State Key Laboratory of Medical Molecular Biology, Department of Biochemistry and Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| |
Collapse
|
21
|
Pagano PJ, Cifuentes-Pagano E. The Enigmatic Vascular NOX: From Artifact to Double Agent of Change: Arthur C. Corcoran Memorial Lecture - 2019. Hypertension 2021; 77:275-283. [PMID: 33390049 DOI: 10.1161/hypertensionaha.120.13897] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
NOXs (NADPH oxidases) comprise a family of proteins whose primary function is the production of reactive oxygen species, namely, superoxide anion and hydrogen peroxide. The prototype first being discovered and characterized in neutrophils, multiple NOXs are now known to be broadly expressed in cell and organ systems and whose phylogeny spans countless life forms beginning with prokaryotes. This long-enduring evolutionary conservation underscores the importance of fundamental NOX functions. This review chronicles a personal perspective of the field beginning with the discovery of NOXs in the vasculature and the advances achieved through the years as to our understanding of their mechanisms of action and role in oxidative stress and disease. Furthermore, applications of isoform-selective inhibitors to dissect the role of NOX isozymes in vascular biology, focusing on inflammation, pulmonary hypertension, and aging are described.
Collapse
Affiliation(s)
- Patrick J Pagano
- Department of Pharmacology and Chemical Biology, Heart, Lung, Blood and Vascular Medicine Institute, University of Pittsburgh, PA
| | - Eugenia Cifuentes-Pagano
- Department of Pharmacology and Chemical Biology, Heart, Lung, Blood and Vascular Medicine Institute, University of Pittsburgh, PA
| |
Collapse
|
22
|
Li B, Wang Z, Hong J, Che Y, Chen R, Hu Z, Hu X, Wu Q, Hu J, Zhang M. Iron deficiency promotes aortic medial degeneration via destructing cytoskeleton of vascular smooth muscle cells. Clin Transl Med 2021; 11:e276. [PMID: 33463069 PMCID: PMC7805404 DOI: 10.1002/ctm2.276] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND Aortic dissection (AD) and aortic aneurysm (AA) are critical illnesses with an unclear pathogenetic mechanism that seriously threaten human life. Aortic medial degeneration (AMD) is the main pathological feature of AD and AA. Diseases of iron metabolism can cause a variety of physiological dysfunctions. In this study, we aimed to clarify the state of iron metabolism in patients with AD and AA, and to explore the effect of iron metabolism on AMD. METHODS A total of 200 patients with AD or AA, and 60 patients with hypertension were included in the study. Blood samples were drawn immediately when patients were admitted to the hospital. Aortic specimens from patients with Stanford type A AD were obtained at the time of surgery. The status of iron metabolism in the circulation and the aortic wall was analyzed. In addition, apolipoprotein E knockout mice were fed chow with a different iron content, and angiotensin II (Ang II) was used to induce AMD. Furthermore, transferrin receptor 1 knockout (TFR1-/-) mice were used to study the effects of iron deficiency (ID) on aortic development, to observe the effects of different iron metabolism status on the formation of AMD in mice, and to explore the cytoskeleton of vascular smooth muscle cells (VSMCs) under different iron metabolism. RESULTS Patients with AMD were iron deficient. ID is associated with the development of AMD in hypertensive patients. Iron-deficient feeding combined with Ang II pumping promoted the formation of AMD and significantly shortened the survival time of mice. ID significantly impaired the cytoskeleton of VSMCs. CONCLUSIONS Our results highlighted that ID was associated with the formation of AMD in patients with hypertension. In this study, we identified a novel mechanism behind VSMCs dysfunction that was induced by ID, thereby suggesting iron homeostasis as a future precaution in patients with hypertension based on its important role in the maintenance of VSMC function.
Collapse
Affiliation(s)
- Bowen Li
- Department of Cardiovascular SurgeryRenmin Hospital of Wuhan UniversityWuhanChina
- Cardiovascular Surgery LaboratoryRenmin Hospital of Wuhan UniversityWuhanChina
- Central LaboratoryRenmin Hospital of Wuhan UniversityWuhanChina
| | - Zhiwei Wang
- Department of Cardiovascular SurgeryRenmin Hospital of Wuhan UniversityWuhanChina
- Cardiovascular Surgery LaboratoryRenmin Hospital of Wuhan UniversityWuhanChina
| | - Junmou Hong
- Department of Cardiovascular SurgeryRenmin Hospital of Wuhan UniversityWuhanChina
- Cardiovascular Surgery LaboratoryRenmin Hospital of Wuhan UniversityWuhanChina
- Central LaboratoryRenmin Hospital of Wuhan UniversityWuhanChina
| | - Yanjia Che
- Department of Cardiovascular SurgeryRenmin Hospital of Wuhan UniversityWuhanChina
- Cardiovascular Surgery LaboratoryRenmin Hospital of Wuhan UniversityWuhanChina
- Central LaboratoryRenmin Hospital of Wuhan UniversityWuhanChina
| | - Ruoshi Chen
- Department of Cardiovascular SurgeryRenmin Hospital of Wuhan UniversityWuhanChina
- Cardiovascular Surgery LaboratoryRenmin Hospital of Wuhan UniversityWuhanChina
- Central LaboratoryRenmin Hospital of Wuhan UniversityWuhanChina
| | - Zhipeng Hu
- Department of Cardiovascular SurgeryRenmin Hospital of Wuhan UniversityWuhanChina
- Cardiovascular Surgery LaboratoryRenmin Hospital of Wuhan UniversityWuhanChina
| | - Xiaoping Hu
- Department of Cardiovascular SurgeryRenmin Hospital of Wuhan UniversityWuhanChina
- Cardiovascular Surgery LaboratoryRenmin Hospital of Wuhan UniversityWuhanChina
| | - Qi Wu
- Department of Cardiovascular SurgeryRenmin Hospital of Wuhan UniversityWuhanChina
- Cardiovascular Surgery LaboratoryRenmin Hospital of Wuhan UniversityWuhanChina
- Central LaboratoryRenmin Hospital of Wuhan UniversityWuhanChina
| | - Junxia Hu
- Department of Cardiovascular SurgeryRenmin Hospital of Wuhan UniversityWuhanChina
- Cardiovascular Surgery LaboratoryRenmin Hospital of Wuhan UniversityWuhanChina
- Central LaboratoryRenmin Hospital of Wuhan UniversityWuhanChina
| | - Min Zhang
- Department of Cardiovascular SurgeryRenmin Hospital of Wuhan UniversityWuhanChina
- Cardiovascular Surgery LaboratoryRenmin Hospital of Wuhan UniversityWuhanChina
| |
Collapse
|
23
|
The carotid plaque as paradigmatic case of site-specific acceleration of aging process: The microRNAs and the inflammaging contribution. Ageing Res Rev 2020; 61:101090. [PMID: 32474155 DOI: 10.1016/j.arr.2020.101090] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Revised: 03/31/2020] [Accepted: 05/14/2020] [Indexed: 02/07/2023]
Abstract
Atherosclerosis is considered a chronic inflammatory disease of arteries associated with the aging process. Many risk factors have been identified and they are mainly related to life-styles, gene-environment interactions and socioeconomic status. Carotid and coronary artery diseases are the two major atherosclerotic conditions, being the primary cause of stroke and heart attack, respectively. Nevertheless, carotid plaque assumes particular aspects not only for the specific molecular mechanisms, but also for the types of atheroma which may be associated with a better or a worst prognosis. The identification of circulating blood biomarkers able to distinguish carotid plaque types (stable or vulnerable) is a crucial step for the improvement of adequate therapeutic approaches avoiding or delaying endarterectomy in the oldest old individuals (> 80 years), a population predicted to growth in the next years. The review highlights the most recent knowledge on carotid plaque molecular mechanisms, focusing on microRNAs (miRs), as a site-specific accelerated aging within the conceptual framework of Geroscience for new affordable therapies.
Collapse
|
24
|
Angulo J, El Assar M, Álvarez-Bustos A, Rodríguez-Mañas L. Physical activity and exercise: Strategies to manage frailty. Redox Biol 2020; 35:101513. [PMID: 32234291 PMCID: PMC7284931 DOI: 10.1016/j.redox.2020.101513] [Citation(s) in RCA: 236] [Impact Index Per Article: 59.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Revised: 03/13/2020] [Accepted: 03/17/2020] [Indexed: 12/25/2022] Open
Abstract
Frailty, a consequence of the interaction of the aging process and certain chronic diseases, compromises functional outcomes in the elderly and substantially increases their risk for developing disabilities and other adverse outcomes. Frailty follows from the combination of several impaired physiological mechanisms affecting multiple organs and systems. And, though frailty and sarcopenia are related, they are two different conditions. Thus, strategies to preserve or improve functional status should consider systemic function in addition to muscle conditioning. Physical activity/exercise is considered one of the main strategies to counteract frailty-related physical impairment in the elderly. Exercise reduces age-related oxidative damage and chronic inflammation, increases autophagy, and improves mitochondrial function, myokine profile, insulin-like growth factor-1 (IGF-1) signaling pathway, and insulin sensitivity. Exercise interventions target resistance (strength and power), aerobic, balance, and flexibility work. Each type improves different aspects of physical functioning, though they could be combined according to need and prescribed as a multicomponent intervention. Therefore, exercise intervention programs should be prescribed based on an individual's physical functioning and adapted to the ensuing response.
Collapse
Affiliation(s)
- Javier Angulo
- Servicio de Histología-Investigación, Unidad de Investigación Traslacional en Cardiología (IRYCIS-UFV), Hospital Universitario Ramón y Cajal, Madrid, Spain; Centro de Investigación Biomédica en Red de Fragilidad y Envejecimiento Saludable (CIBERFES), Instituto de Salud Carlos III, Madrid, Spain
| | - Mariam El Assar
- Centro de Investigación Biomédica en Red de Fragilidad y Envejecimiento Saludable (CIBERFES), Instituto de Salud Carlos III, Madrid, Spain; Fundación para la Investigación Biomédica del Hospital Universitario de Getafe, Getafe, Spain
| | | | - Leocadio Rodríguez-Mañas
- Centro de Investigación Biomédica en Red de Fragilidad y Envejecimiento Saludable (CIBERFES), Instituto de Salud Carlos III, Madrid, Spain; Servicio de Geriatría, Hospital Universitario de Getafe, Getafe, Spain.
| |
Collapse
|
25
|
Stratton JA, Eaton S, Rosin NL, Jawad S, Holmes A, Yoon G, Midha R, Biernaskie J. Macrophages and Associated Ligands in the Aged Injured Nerve: A Defective Dynamic That Contributes to Reduced Axonal Regrowth. Front Aging Neurosci 2020; 12:174. [PMID: 32595489 PMCID: PMC7304384 DOI: 10.3389/fnagi.2020.00174] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Accepted: 05/19/2020] [Indexed: 01/08/2023] Open
Abstract
The regenerative capacity of injured peripheral nerves is diminished with aging. To identify factors that contribute to this impairment, we compared the immune cell response in young vs. aged animals following nerve injury. First, we confirmed that macrophage accumulation is delayed in aged injured nerves which is due to defects in monocyte migration as a result of defects in site-specific recruitment signals in the aged nerve. Interestingly, impairment in both macrophage accumulation and functional recovery could be overcome by transplanting bone marrow from aged animals into young mice. That is, upon exposure to a youthful environment, monocytes/macrophages originating from the aged bone marrow behaved similarly to young cells. Transcriptional profiling of aged macrophages following nerve injury revealed that both pro- and anti-inflammatory genes were largely downregulated in aged compared to young macrophages. One ligand of particular interest was macrophage-associated secreted protein (MCP1), which exhibited a potent role in regulating aged axonal regrowth in vitro. Given that macrophage-derived MCP1 is significantly diminished in the aged injured nerve, our data suggest that age-associated defects in MCP1 signaling could contribute to the regenerative deficits that occur in the aged nervous system.
Collapse
Affiliation(s)
- Jo Anne Stratton
- Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada.,Department of Comparative Biology and Experimental Medicine, Faculty of Veterinary Medicine, University of Calgary, Calgary, AB, Canada.,Alberta Children's Hospital Research Institute, University of Calgary, Calgary, AB, Canada
| | - Shane Eaton
- Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada
| | - Nicole L Rosin
- Department of Comparative Biology and Experimental Medicine, Faculty of Veterinary Medicine, University of Calgary, Calgary, AB, Canada
| | - Sana Jawad
- Department of Comparative Biology and Experimental Medicine, Faculty of Veterinary Medicine, University of Calgary, Calgary, AB, Canada
| | - Alexandra Holmes
- Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada
| | - Grace Yoon
- Department of Comparative Biology and Experimental Medicine, Faculty of Veterinary Medicine, University of Calgary, Calgary, AB, Canada
| | - Rajiv Midha
- Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada.,Department of Clinical Neuroscience, Faculty of Medicine, University of Calgary, Calgary, AB, Canada
| | - Jeff Biernaskie
- Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada.,Department of Comparative Biology and Experimental Medicine, Faculty of Veterinary Medicine, University of Calgary, Calgary, AB, Canada.,Alberta Children's Hospital Research Institute, University of Calgary, Calgary, AB, Canada
| |
Collapse
|
26
|
Lai YH, Lin YL, Wang CH, Kuo CH, Hsu BG. Negative correlation of serum adiponectin level with peripheral artery occlusive disease in hemodialysis patients. Tzu Chi Med J 2020; 32:70-74. [PMID: 32110524 PMCID: PMC7015003 DOI: 10.4103/tcmj.tcmj_19_19] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Revised: 12/24/2018] [Accepted: 01/14/2018] [Indexed: 01/23/2023] Open
Abstract
Objective: Adiponectin is a fat-derived hormone that secretes exclusively by adipocytes and has antiatherosclerotic effects. Peripheral arterial occlusive disease (PAOD) is associated with an increased risk of death in hemodialysis (HD) patients. The aim of this study was to evaluate the relationship between serum adiponectin levels and PAOD by ankle–brachial index (ABI) in HD patients. Materials and Methods: Blood samples were obtained from 100 HD patients. Serum adiponectin levels were measured using a commercial enzyme-linked immunosorbent assay kit. ABI values were measured using the automated oscillometric method (VaSera VS-1000). ABI values that <0.9 were included in the low ABI group. Results: Among the 100 HD patients, 18 of them (18.0%) were in the low ABI group. Compared with patients in the normal ABI group, the patients in the low ABI group had a higher prevalence of diabetes (P = 0.043), older age (P = 0.027), and lower serum adiponectin level (P = 0.003). In addition, the multivariable logistic regression analysis showed that adiponectin (Odds ratio [OR]: 0.927, 95% confidence interval [CI]: 0.867–0.990, P = 0.025) and age (OR: 1.054, 95% CI: 1.002–1.109, P = 0.043) were the independently associated with PAOD in HD patients. Conclusion: In this study, serum adiponectin level was found to be associated with PAOD in HD patients.
Collapse
Affiliation(s)
- Yu-Hsien Lai
- Division of Nephrology, Buddhist Tzu Chi General Hospital, Hualien, Taiwan.,PhD Program in Pharmacology and Toxicology, Tzu Chi University, Hualien, Taiwan
| | - Yu-Li Lin
- Division of Nephrology, Buddhist Tzu Chi General Hospital, Hualien, Taiwan
| | - Chih-Hsien Wang
- Division of Nephrology, Buddhist Tzu Chi General Hospital, Hualien, Taiwan
| | - Chiu-Huang Kuo
- Division of Nephrology, Buddhist Tzu Chi General Hospital, Hualien, Taiwan
| | - Bang-Gee Hsu
- Division of Nephrology, Buddhist Tzu Chi General Hospital, Hualien, Taiwan.,School of Medicine, Tzu Chi University, Hualien, Taiwan
| |
Collapse
|
27
|
Sertedaki E, Veroutis D, Zagouri F, Galyfos G, Filis K, Papalambros A, Aggeli K, Tsioli P, Charalambous G, Zografos G, Sigala F. Carotid Disease and Ageing: A Literature Review on the Pathogenesis of Vascular Senescence in Older Subjects. Curr Gerontol Geriatr Res 2020; 2020:8601762. [PMID: 32582337 PMCID: PMC7306882 DOI: 10.1155/2020/8601762] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Revised: 05/11/2020] [Accepted: 05/16/2020] [Indexed: 02/06/2023] Open
Abstract
Aging is a natural process that affects all systems of the human organism, leading to its inability to adapt to environmental changes. Advancing age has been correlated with various pathological conditions, especially cardiovascular and cerebrovascular diseases. Carotid artery (CA) is mainly affected by age-induced functional and morphological alterations causing atheromatous disease. The evolvement of biomedical sciences has allowed the elucidation of many aspects of this condition. Symptomatic carotid disease (CD) derives from critical luminar stenosis or eruption of an atheromatous plaque due to structural modifications of the vessels, such as carotid intima-media thickening. At a histologic level, the aforementioned changes are mediated by elastin fragmentation, collagen deposition, immune cell infiltration, and accumulation of cytokines and vasoconstrictors. Underlying mechanisms include chronic inflammation and oxidative stress, dysregulation of cellular homeostatic systems, and senescence. Thus, there is an imbalance in components of the vessel wall, which fails to counteract exterior stress stimuli. Consequently, arterial relaxation is impaired and atherosclerotic lesions progress. This is a review of current evidence regarding the relationship of aging with vascular senescence and CD. A deeper understanding of these mechanisms can contribute to the production of efficient prevention methods and targeted therapeutic strategies.
Collapse
Affiliation(s)
- Eleni Sertedaki
- 1First Department of Propaedeutic Surgery, Hippocration General Hospital, School of Medicine, National Kapodistrian University of Athens, Athens, Greece
- 2Molecular Carcinogenesis Group, Department of Histology and Embryology, School of Medicine, National Kapodistrian University of Athens, Athens, Greece
| | - Dimitris Veroutis
- 2Molecular Carcinogenesis Group, Department of Histology and Embryology, School of Medicine, National Kapodistrian University of Athens, Athens, Greece
| | - Flora Zagouri
- 3Clinical Therapeutics Department, Alexandra General Hospital, School of Medicine, National Kapodistrian University of Athens, Athens, Greece
| | - George Galyfos
- 1First Department of Propaedeutic Surgery, Hippocration General Hospital, School of Medicine, National Kapodistrian University of Athens, Athens, Greece
| | - Konstadinos Filis
- 1First Department of Propaedeutic Surgery, Hippocration General Hospital, School of Medicine, National Kapodistrian University of Athens, Athens, Greece
| | - Alexandros Papalambros
- 4First Department of Surgery, Laikon General Hospital, School of Medicine, National Kapodistrian University of Athens, Athens, Greece
| | - Konstantina Aggeli
- 5First Department of Cardiology, University of Athens Medical School, Hippocration Hospital, Athens, Greece
| | - Panagiota Tsioli
- 6First Department of Pathology, Laikon General Hospital, School of Medicine, National Kapodistrian University of Athens, Athens, Greece
| | - George Charalambous
- 1First Department of Propaedeutic Surgery, Hippocration General Hospital, School of Medicine, National Kapodistrian University of Athens, Athens, Greece
| | - George Zografos
- 1First Department of Propaedeutic Surgery, Hippocration General Hospital, School of Medicine, National Kapodistrian University of Athens, Athens, Greece
| | - Fragiska Sigala
- 1First Department of Propaedeutic Surgery, Hippocration General Hospital, School of Medicine, National Kapodistrian University of Athens, Athens, Greece
| |
Collapse
|
28
|
Wang H, Zhu X, Shen J, Zhao EF, He D, Shen H, Liu H, Zhou Y. Quantitative iTRAQ-based proteomic analysis of differentially expressed proteins in aging in human and monkey. BMC Genomics 2019; 20:725. [PMID: 31601169 PMCID: PMC6788010 DOI: 10.1186/s12864-019-6089-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2018] [Accepted: 09/09/2019] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND The underlying physiological mechanisms associated with aging are still complex and unclear. As a very important tissue of human body, the circulatory system also plays a very important role in the process of aging. In this study, we use the isobaric tags for relative and absolute quantification (iTRAQ) method to identify differentially expressed proteins in plasma for humans and monkeys between young and aged. Western blotting and behavioral experiment in mice were performed to validate the expression of the candidate protein. RESULTS Between the young / the old humans and the young / the old monkeys 74 and 69 proteins were found to be differently expressed, respectively. For the human samples, these included 38 up-regulated proteins and 36 down-regulated proteins (a fold change ≥1.3 or ≤ 0.667, p value ≤0.05).For the monkey samples, 51 up-regulated proteins and 18 down-regulated proteins (a fold change ≥1.3 or ≤ 0.667, p value ≤0.05). KEGG pathway analysis revealed that phagosome, focal adhesion, ECM-receptor interaction and PI3K/AKT signaling pathway were the most common pathways involved in aging. We found only IGFBP4 protein that existed in up-regulated proteins in aged both for human and monkey. In addition, the differential expression of IGFBP4 was validated by western blot analysis and IGFBP4 treatment mimicked aging-related cognitive dysfunction in mice. CONCLUSIONS This first, the integrated proteomics for the plasma protein of human and monkey reveal one protein-IGFBP4, which was validated by western blotting and behavioral analysis can promote the process of aging. And, iTRAQ analysis showed that proteolytic systems, and inflammatory responses plays an important role in the process of aging. These findings provide a basis for better understanding of the underlying mechanisms involved in aging.
Collapse
Affiliation(s)
- Hao Wang
- Department of Thoracic-Cardiovascular Surgery, Tongji Hospital, Tongji University School of Medicine, Shanghai, China
- Translational Center for Stem Cell Research, Tongji Hospital, Tongji University School of Medicine, Shanghai, 200065 China
| | - Xiaoqi Zhu
- Translational Center for Stem Cell Research, Tongji Hospital, Tongji University School of Medicine, Shanghai, 200065 China
| | - Junyan Shen
- Translational Center for Stem Cell Research, Tongji Hospital, Tongji University School of Medicine, Shanghai, 200065 China
| | - En-Feng Zhao
- Translational Center for Stem Cell Research, Tongji Hospital, Tongji University School of Medicine, Shanghai, 200065 China
| | - Dajun He
- College of Life Sciences, Key Laboratary of Xinjiang Phytomedicine Resource and Utilization of Ministry of Education, Shihezi University, Shihezi, 832003 Xinjiang China
| | - Haitao Shen
- College of Life Sciences, Key Laboratary of Xinjiang Phytomedicine Resource and Utilization of Ministry of Education, Shihezi University, Shihezi, 832003 Xinjiang China
| | - Hailiang Liu
- Translational Center for Stem Cell Research, Tongji Hospital, Tongji University School of Medicine, Shanghai, 200065 China
- College of Life Sciences, Key Laboratary of Xinjiang Phytomedicine Resource and Utilization of Ministry of Education, Shihezi University, Shihezi, 832003 Xinjiang China
| | - Yongxin Zhou
- Department of Thoracic-Cardiovascular Surgery, Tongji Hospital, Tongji University School of Medicine, Shanghai, China
| |
Collapse
|
29
|
Shang T, Liang J, Kapron CM, Liu J. Pathophysiology of aged lymphatic vessels. Aging (Albany NY) 2019; 11:6602-6613. [PMID: 31461408 PMCID: PMC6738433 DOI: 10.18632/aging.102213] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Accepted: 08/14/2019] [Indexed: 11/25/2022]
Abstract
Lymphatic vessels maintain body homeostasis by recirculation of fluid and cells. Cell senescence induces lymphatic dysfunction. Impaired contractile function is caused by low muscle cell investiture and decrease of nitric oxide in aged lymphatic collectors, leading to poor drainage of lymph. Aging-induced loss of endothelial glycocalyx and production of inflammatory cytokines increases permeability of lymphatic vessels. In addition, aging-associated basal activation of mast cells delays immune response. In this review, we summarize the structural and pathological changes of aged lymphatic vessels, and discuss the underlying molecular mechanisms.
Collapse
Affiliation(s)
- Tongyao Shang
- Medical Research Center, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan, Shandong, China
| | - Jiangjiu Liang
- Department of Health Care, Shandong Provincial Qianfoshan Hospital, The First Hospital affiliated with Shandong First Medical University, Jinan, Shandong, China
| | - Carolyn M Kapron
- Department of Biology, Trent University, Peterborough, ON, Canada
| | - Ju Liu
- Medical Research Center, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan, Shandong, China.,Laboratory of Microvascular Medicine, Medical Research Center, Shandong Provincial Qianfoshan Hospital, The First Hospital affiliated with Shandong First Medical University, Jinan, Shandong, China
| |
Collapse
|
30
|
Vascular aging and preclinical target organ damage in community-dwelling elderly: the Northern Shanghai Study. J Hypertens 2019; 36:1391-1398. [PMID: 29389744 DOI: 10.1097/hjh.0000000000001692] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVES Vascular aging represents a mediating step between risk factors and cardiovascular events, and preclinical target organ damage (TOD) integrates the cumulative effect of cardiovascular risk factors. This study is aimed at the relationships between vascular aging and TOD. METHODS Two thousand and ninety-eight participants (45.52% men, aged 71.3 ± 6.1 years) were recruited from June 2014 to June 2017 from the communities in the northern Shanghai area. Preclinical TOD was assessed in all the participants. Other clinical information was obtained by standard questionnaire. Healthy vascular aging (HVA) was defined as absence of hypertension and a relatively normal carotid-femoral PWV based on participants' age and blood pressure. We fitted logistic regression models to assess the probability of non-HVA in association with all the preclinical TOD. RESULTS Six hundred and forty-two (30.6%) elderly participants had HVA, and the prevalence of HVA decreased from 30.84% (aged 65-66) to 20.72% (aged ≥75). Increased age, increased SBP, metabolic syndrome, increased BMI and family history of premature cardiovascular disease (CVD) were significantly associated with accelerated vascular aging (P = 0.031 to P < 0.001). After multivariate adjustments, accelerated vascular aging was associated with left ventricular diastolic dysfunction (LVDD; OR (95% CI) 1.83 (1.23, 2.71), P = 0.003), left ventricular hypertrophy (LVH; OR (95% CI) 1.97 (1.54, 2.51), P < 0.001) and micro-albuminuria (MAU; OR (95% CI) 1.66 (1.35, 2.03), P < 0.001). CONCLUSION Management of blood pressure and metabolic profile may help to alleviate vascular aging and accelerated vascular aging is associated with LVH, LVDD and MAU, which may serve as a potential target to reverse cardiac and renal TOD.
Collapse
|
31
|
Vascular smooth muscle cell senescence and age-related diseases: State of the art. Biochim Biophys Acta Mol Basis Dis 2019; 1865:1810-1821. [DOI: 10.1016/j.bbadis.2018.08.015] [Citation(s) in RCA: 95] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Revised: 07/20/2018] [Accepted: 08/13/2018] [Indexed: 02/07/2023]
|
32
|
Prevalence and Risk Factors of Hypertension in the Vietnamese Elderly. High Blood Press Cardiovasc Prev 2019; 26:239-246. [PMID: 31020550 DOI: 10.1007/s40292-019-00314-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Accepted: 04/02/2019] [Indexed: 01/01/2023] Open
Abstract
INTRODUCTION Hypertension (HT) is considered as a major determinant of cardiovascular complications. However, few studies have addressed HT prevalence among adults aged 60 years and older in the northern mountainous region of Vietnam. AIM To determine the prevalence of HT and its risk factors in the elderly in that area. METHODS A cross-sectional study was conducted in a study area in the northern of Vietnam. We interviewed 354 adults aged 60 years or over who were randomly selected, and then measured their blood pressure. RESULTS The overall HT prevalence was 62.15%. The isolated systolic hypertension (ISH) prevalence was 22.88%. There was a slight decrease in the proportion of HT by stage 1, stage 2 and stage 3 respectively. The univariate and multivariate logistic regression analysis indicated some risk factors for HT including age groups, body mass index (BMI) and waist-hip ratio (WHR) (p < 0.05). Furthermore, we also found that the risk factors of ISH was obesity status classified by BMI category and WHR (p < 0.05). In particularly, the ethnicity was statistically significantly associated with ISH. CONCLUSION Our data showed a high prevalence of hypertension in the elderly in studied area. The risk factors for HT and ISH among studied subjects included age groups, ethnic groups, BMI and WHR. Hence, these findings are important for policy-making related to launch public health prevention and control campaigns for hypertension among older adults in the northern mountainous region of Vietnam.
Collapse
|
33
|
Yuan RQ, Qian L, Yun WJ, Cui XH, Lv GX, Tang WQ, Cao RC, Xu H. Cucurbitacins extracted from Cucumis melo L. (CuEC) exert a hypotensive effect via regulating vascular tone. Hypertens Res 2019; 42:1152-1161. [PMID: 30962520 DOI: 10.1038/s41440-019-0258-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Revised: 02/17/2019] [Accepted: 03/06/2019] [Indexed: 12/13/2022]
Abstract
As an effective medicine for jaundice in traditional Chinese medicine, Cucumis melo L. has been widely used in China. However, its effect on vascular function is still unclear. In this study, we extracted the compounds of Cucumis melo L., and the major ingredients were identified as cucurbitacins (CuEC, cucurbitacins extracted from Cucumis melo L.), especially cucurbitacin B. We replicated the toxicity in mice by intraperitoneal injection of a high dose of CuEC (2 mg/kg) and demonstrated that the cause of death was CuEC-induced impairment of the endothelial barrier and, thus, increased vascular permeability via decreasing VE-cadherin conjunction. The administration of low doses of CuEC (1 mg/kg) led to a decline in systolic blood pressure (SBP) without causing toxicity in mice. More importantly, CuEC dramatically suppressed angiotensin II (Ang II)-induced SBP increase. Further studies demonstrated that CuEC facilitated acetylcholine-mediated vasodilation in mesenteric arteries of mice. In vitro studies showed that CuEC induced vasodilation in a dose-dependent manner in mesenteric arteries of both mice and rats. Pretreatment with CuEC inhibited phenylephrine-mediated vasoconstriction. In summary, a moderate dose of CuEC reduced SBP by improving blood vessel tension. Therefore, our study provides new experimental evidence for developing new antihypertensive drugs.
Collapse
Affiliation(s)
- Ru-Qiang Yuan
- Advanced Institute for Medical Sciences, Dalian Medical University, Dalian, 116044, China
| | - Lei Qian
- Advanced Institute for Medical Sciences, Dalian Medical University, Dalian, 116044, China
| | - Wei-Jing Yun
- Advanced Institute for Medical Sciences, Dalian Medical University, Dalian, 116044, China
| | - Xiao-Hui Cui
- Advanced Institute for Medical Sciences, Dalian Medical University, Dalian, 116044, China
| | - Guang-Xin Lv
- Advanced Institute for Medical Sciences, Dalian Medical University, Dalian, 116044, China
| | - Wei-Qi Tang
- Advanced Institute for Medical Sciences, Dalian Medical University, Dalian, 116044, China
| | - Ri-Chang Cao
- Advanced Institute for Medical Sciences, Dalian Medical University, Dalian, 116044, China
| | - Hu Xu
- Advanced Institute for Medical Sciences, Dalian Medical University, Dalian, 116044, China.
| |
Collapse
|
34
|
Anraku M, Gebicki JM, Iohara D, Tomida H, Uekama K, Maruyama T, Hirayama F, Otagiri M. Antioxidant activities of chitosans and its derivatives in in vitro and in vivo studies. Carbohydr Polym 2018; 199:141-149. [DOI: 10.1016/j.carbpol.2018.07.016] [Citation(s) in RCA: 80] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Revised: 06/26/2018] [Accepted: 07/06/2018] [Indexed: 02/07/2023]
|
35
|
Dalton A, Zafirova Z. Preoperative Management of the Geriatric Patient: Frailty and Cognitive Impairment Assessment. Anesthesiol Clin 2018; 36:599-614. [PMID: 30390781 DOI: 10.1016/j.anclin.2018.07.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
As the population ages, more geriatric patients will be presenting for surgical procedures. Preoperative evaluation seeks to assess patients for geriatric syndromes: frailty, sarcopenia, functional dependence, and malnutrition. Age-related changes in physiology increase risk for central nervous system, cardiovascular, pulmonary, renal, hepatic, and endocrine morbidity and mortality. Identification of various comorbidities allows for preoperative optimization and for opportunities for intervention including nutritional supplementation and prehabilitation, which may improve postoperative outcomes.
Collapse
Affiliation(s)
- Allison Dalton
- Department of Anesthesia and Critical Care, University of Chicago, 5041 South Maryland Avenue, MC 4028, Chicago, IL 60637, USA.
| | - Zdravka Zafirova
- Section Critical Care, Department of Cardiovascular Surgery, Mount Sinai Hospital System, Icahn School of Medicine, Mount Sinai Medical Center, Box 1028, 1 Gustave L. Levy Place, New York, NY 10029, USA
| |
Collapse
|
36
|
Fidalgo S, Patel BA, Ranson RN, Saffrey MJ, Yeoman MS. Changes in murine anorectum signaling across the life course. Neurogastroenterol Motil 2018; 30:e13426. [PMID: 30062757 PMCID: PMC6175477 DOI: 10.1111/nmo.13426] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Accepted: 06/18/2018] [Indexed: 12/28/2022]
Abstract
BACKGROUND Increasing age is associated with an increase in the incidence of chronic constipation and fecal impaction. The contribution of the natural aging process to these conditions is not fully understood. This study examined the effects of increasing age on the function of the murine anorectum. METHODS The effects of increasing age on cholinergic, nitrergic, and purinergic signaling pathways in the murine anorectum were examined using classical organ bath assays to examine tissue function and electrochemical sensing to determine age-related changes in nitric oxide and acetylcholine release. KEY RESULTS Nitrergic relaxation increased between 3 and 6 months, peaked at 12 months and declined in the 18 and 24 months groups. These changes were in part explained by an age-related decrease in nitric oxide (NO) release. Cholinergic signaling was maintained with age by an increase in acetylcholine (ACh) release and a compensatory decrease in cholinesterase activity. Age-related changes in purinergic relaxation were qualitatively similar to nitrergic relaxation although the relaxations were much smaller. Increasing age did not alter the response of the anorectum smooth muscle to exogenously applied ACh, ATP, sodium nitroprusside or KCl. Similarly, there was no change in basal tension developed by the anorectum. CONCLUSIONS AND INFERENCES The decrease in nitrergic signaling with increasing age may contribute to the age-related fecal impaction and constipation previously described in this model by partially obstructing defecation.
Collapse
Affiliation(s)
- S. Fidalgo
- School of Pharmacy and Biomolecular ScienceCentre for Stress and Age‐Related DiseaseUniversity of BrightonBrightonUK
| | - B. A. Patel
- School of Pharmacy and Biomolecular ScienceCentre for Stress and Age‐Related DiseaseUniversity of BrightonBrightonUK
| | - R. N. Ranson
- Department of Applied SciencesFaculty of Health and Life SciencesNorthumbria UniversityNewcastle upon TyneUK
| | - M. J. Saffrey
- School of Life, Health and Chemical SciencesThe Open UniversityMilton KeynesUK
| | - M. S. Yeoman
- School of Pharmacy and Biomolecular ScienceCentre for Stress and Age‐Related DiseaseUniversity of BrightonBrightonUK
| |
Collapse
|
37
|
Osorio-Bedoya EJ, Amariles P. Hipertensión arterial en pacientes de edad avanzada: una revisión estructurada. REVISTA COLOMBIANA DE CARDIOLOGÍA 2018. [DOI: 10.1016/j.rccar.2017.10.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
|
38
|
Kane AE, Howlett SE. Differences in Cardiovascular Aging in Men and Women. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2018; 1065:389-411. [PMID: 30051398 DOI: 10.1007/978-3-319-77932-4_25] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Cardiovascular diseases increase dramatically with age in both men and women. While it is clear that advanced age allows more time for individuals to be exposed to risk factors in general, there is strong evidence that age itself is a major independent risk factor for cardiovascular disease. Indeed, there are distinct age-dependent cellular, structural, and functional changes in both the heart and blood vessels, even in individuals with no clinical evidence of cardiovascular disease. Studies in older humans and in animal models of aging indicate that this age-related remodeling is maladaptive. An emerging view is that the heart and blood vessels accumulate cellular and subcellular deficits with age and these deficits increase susceptibility to disease in older individuals. Aspects of this age-dependent remodeling of the heart and blood vessels differ between the sexes. There is also new evidence that these maladaptive changes are more prominent in older animals and humans with a high degree of frailty. These observations may help explain why men and women are susceptible to different cardiovascular diseases as they age and why frail older adults are most often affected by these diseases.
Collapse
Affiliation(s)
- Alice E Kane
- Department of Pharmacology, Dalhousie University, Halifax, NS, Canada
| | - Susan E Howlett
- Department of Pharmacology, Dalhousie University, Halifax, NS, Canada.
- Department of Medicine (Geriatric Medicine), Dalhousie University, Halifax, NS, Canada.
| |
Collapse
|
39
|
Tesauro M, Mauriello A, Rovella V, Annicchiarico-Petruzzelli M, Cardillo C, Melino G, Di Daniele N. Arterial ageing: from endothelial dysfunction to vascular calcification. J Intern Med 2017; 281:471-482. [PMID: 28345303 DOI: 10.1111/joim.12605] [Citation(s) in RCA: 204] [Impact Index Per Article: 29.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Complex structural and functional changes occur in the arterial system with advancing age. The aged artery is characterized by changes in microRNA expression patterns, autophagy, smooth muscle cell migration and proliferation, and arterial calcification with progressively increased mechanical vessel rigidity and stiffness. With age the vascular smooth muscle cells modify their phenotype from contractile to 'synthetic' determining the development of intimal thickening as early as the second decade of life as an adaptive response to forces acting on the arterial wall. The increased permeability observed in intimal thickening could represent the substrate on which low-level atherosclerotic stimuli can promote the development of advanced atherosclerotic lesions. In elderly patients the atherosclerotic plaques tend to be larger with increased vascular stenosis. In these plaques there is a progressive accumulation of both lipids and collagen and a decrease of inflammation. Similarly the plaques from elderly patients show more calcification as compared with those from younger patients. The coronary artery calcium score is a well-established marker of adverse cardiovascular outcomes. The presence of diffuse calcification in a severely stenotic segment probably induces changes in mechanical properties and shear stress of the arterial wall favouring the rupture of a vulnerable lesion in a less stenotic adjacent segment. Oxidative stress and inflammation appear to be the two primary pathological mechanisms of ageing-related endothelial dysfunction even in the absence of clinical disease. Arterial ageing is no longer considered an inexorable process. Only a better understanding of the link between ageing and vascular dysfunction can lead to significant advances in both preventative and therapeutic treatments with the aim that in the future vascular ageing may be halted or even reversed.
Collapse
Affiliation(s)
- M Tesauro
- Department of Systems Medicine, University of Rome 'Tor Vergata', Rome, Italy
| | - A Mauriello
- Department of Experimental Medicine and Surgery, University of Rome 'Tor Vergata', Rome, Italy
| | - V Rovella
- Department of Systems Medicine, University of Rome 'Tor Vergata', Rome, Italy
| | | | - C Cardillo
- Department of Internal Medicine, Catholic University, Rome, Italy
| | - G Melino
- Department of Experimental Medicine and Surgery, University of Rome 'Tor Vergata', Rome, Italy.,Medical Research Council, Toxicology Unit, Leicester University, Leicester, UK
| | - N Di Daniele
- Department of Systems Medicine, University of Rome 'Tor Vergata', Rome, Italy
| |
Collapse
|
40
|
Fan X, Gaur U, Sun L, Yang D, Yang M. The Growth Differentiation Factor 11 (GDF11) and Myostatin (MSTN) in tissue specific aging. Mech Ageing Dev 2017; 164:108-112. [PMID: 28472635 DOI: 10.1016/j.mad.2017.04.009] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Revised: 04/18/2017] [Accepted: 04/28/2017] [Indexed: 01/24/2023]
Abstract
Growth differentiation factor 11 (GDF11) and myostatin (MSTN) are evolutionarily conserved homologues proteins which are closely related members of the transforming growth factor β superfamily. They are often perceived to serve similar or overlapping roles. Recently, GDF11 has been identified as playing a role during aging, however there are conflicting reports as to the nature of this role. In this review, we will discuss the literature regarding functions of GDF11 and myostatin in the heart, brain, and skeletal muscle during aging. Consequently we expect to develop a deeper understanding about the function of these two proteins in organismal aging and disease.
Collapse
Affiliation(s)
- Xiaolan Fan
- Institute of Animal Genetics and Breeding, Sichuan Agricultural University Chengdu, 611130, PR China
| | - Uma Gaur
- Institute of Animal Genetics and Breeding, Sichuan Agricultural University Chengdu, 611130, PR China
| | - Lin Sun
- Jiangsu Vocational College of Medicine, Yancheng, 224000, PR China
| | - Deying Yang
- Institute of Animal Genetics and Breeding, Sichuan Agricultural University Chengdu, 611130, PR China
| | - Mingyao Yang
- Institute of Animal Genetics and Breeding, Sichuan Agricultural University Chengdu, 611130, PR China.
| |
Collapse
|
41
|
Andersson KE, Boedtkjer DB, Forman A. The link between vascular dysfunction, bladder ischemia, and aging bladder dysfunction. Ther Adv Urol 2016; 9:11-27. [PMID: 28042309 DOI: 10.1177/1756287216675778] [Citation(s) in RCA: 82] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The vascular supply to the human bladder is derived mainly from the superior and inferior vesical arteries, the latter being directly connected to the internal iliac artery. Aging is associated with an impairment of blood vessel function and changes may occur in the vasculature at the molecular, cellular and functional level. Pelvic arterial insufficiency may play an important role in the development of bladder dysfunctions such as detrusor overactivity (DO) and the overactive bladder syndrome. Chronic ischemia-related bladder dysfunction may progress to bladder underactivity and it would be desirable to treat not only lower urinary tract symptoms (LUTS) induced by chronic ischemia, but also the progression of the morphological bladder changes. Studies in experimental models in rabbits and rats have shown that pelvic arterial insufficiency may result in significant bladder ischemia with reduced bladder wall oxygen tension. In turn, this will lead to oxidative stress associated with upregulation of oxidative stress-sensitive genes, increased muscarinic receptor activity, ultrastructural damage, and neurodegeneration. The phosphodiesterase type 5 (PDE5) inhibitor tadalafil, the α1-adrenoceptor (AR) blocker silodosin, the β3-AR agonist mirabegron, and the free radical scavenger melatonin, exerted a protecting effect on urodynamic parameters, and on functional and morphological changes of the bladder demonstrable in vitro. Since the agents tested are used clinically for relieving LUTS, the results from the animal models seem to have translational value, and may be of relevance for designing clinical studies to demonstrate if the drugs may prevent progression of ischemia-related functional and morphological bladder changes.
Collapse
Affiliation(s)
- Karl-Erik Andersson
- Institute of Clinical Medicine, Department of Obstetrics and Gynecology, Aarhus University Hospital, Palle Juul-Jensens Boulevard 99, DK 8200 Aarhus N, Denmark
| | | | - Axel Forman
- Department of Gynecology and Obstetrics, Aarhus University Hospital, Denmark
| |
Collapse
|
42
|
Effect of the Aged Garlic Extract on Cardiovascular Function in Metabolic Syndrome Rats. Molecules 2016; 21:molecules21111425. [PMID: 27792195 PMCID: PMC6273338 DOI: 10.3390/molecules21111425] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2016] [Revised: 10/16/2016] [Accepted: 10/21/2016] [Indexed: 12/19/2022] Open
Abstract
The antioxidant properties of aged garlic extract (AGE) on cardiovascular functioning (CF) in metabolic syndrome (MS) remains poorly studied. Here we study the AGE effects on CF in a rat model of MS. Control rats plus saline solution (C + SS), MS rats (30% sucrose in drinking water from weaning) plus saline solution (MS + SS), control rats receiving AGE (C + AGE 125 mg/Kg/12 h) and MS rats with AGE (MS + AGE) were studied. MS + SS had increased triglycerides, systolic blood pressure, insulin, leptin, HOMA index, and advanced glycation end products. AGE returned their levels to control values (p < 0.01). Cholesterol was decreased by AGE (p = 0.05). Glutathion and GPx activity were reduced in MS + SS rats and increased with AGE (p = 0.05). Lipid peroxidation was increased in MS + SS and AGE reduced it (p = 0.001). Vascular functioning was deteriorated by MS (increased vasocontraction and reduced vasodilation) and AGE improved it (p = 0.001). Coronary vascular resistance was increased in MS rats and AGE decreased it (p = 0.001). Cardiac performance was not modified by MS but AGE increased it. NO measured in the perfusate liquid from the heart and serum citrulline, nitrites/nitrates were decreased in MS and AGE increased them (p < 0.01). In conclusion, AGE reduces MS-induced cardiovascular risk, through its anti-oxidant properties.
Collapse
|
43
|
Yavuzer S, Yavuzer H, Cengiz M, Erman H, Demirdag F, Doventas A, Balci H, Erdincler DS, Uzun H. The role of protein oxidation and DNA damage in elderly hypertension. Aging Clin Exp Res 2016; 28:625-32. [PMID: 26487663 DOI: 10.1007/s40520-015-0464-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2015] [Accepted: 09/22/2015] [Indexed: 10/22/2022]
Abstract
INTRODUCTION This study aimed to evaluate the role of protein oxidation and DNA damage in the elderly hypertensive (HT) patients. MATERIALS AND METHODS This study consisted of four groups: two elderly groups with 30 HT patients and 30 normotensive healthy volunteers, and two young groups with 30 HT patients and 30 normotensive healthy volunteers. Plasma total thiol (T-SH), advanced oxidation protein products (AOPPs), protein carbonyl (PCO), ischemia modified albumin (IMA), urine 8-hydroxy-2'-deoxyguanosine (8-OHdG), and prooxidant-antioxidant balance (PAB) levels were measured. RESULTS In the elderly HT group AOPPs, PCO, 8-OHdG, and PAB were significantly higher than the elderly control group. In the young HT group T-SH levels were significantly lower and the other oxidative stress parameters were significantly higher than the young control group. In the elderly control group AOPPs, PCO, IMA, 8-OHdG and PAB were significantly higher than the young control group. T-SH was significantly lower in the elderly control than the young control group. In the elderly HT group, T-SH levels were significantly lower and AOPPs, PCO, IMA, 8-OHdG, and PAB levels were significantly higher than the young HT group. CONCLUSION Protein and DNA cell damage occurs by oxidation of free radicals throughout life. Our study supports the view that these radicals may be responsible for the development of hypertension with aging process. Urine 8-OHdG levels can be used as a marker for oxidative DNA damage in the elderly hypertensive patients. Finally, our results suggest that oxidative stress may influence both the development and progression of hypertension and aging.
Collapse
|
44
|
Angulo J, El Assar M, Rodríguez-Mañas L. Frailty and sarcopenia as the basis for the phenotypic manifestation of chronic diseases in older adults. Mol Aspects Med 2016; 50:1-32. [PMID: 27370407 DOI: 10.1016/j.mam.2016.06.001] [Citation(s) in RCA: 108] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2016] [Accepted: 06/18/2016] [Indexed: 12/13/2022]
Abstract
Frailty is a functional status that precedes disability and is characterized by decreased functional reserve and increased vulnerability. In addition to disability, the frailty phenotype predicts falls, institutionalization, hospitalization and mortality. Frailty is the consequence of the interaction between the aging process and some chronic diseases and conditions that compromise functional systems and finally produce sarcopenia. Many of the clinical manifestations of frailty are explained by sarcopenia which is closely related to poor physical performance. Reduced regenerative capacity, malperfusion, oxidative stress, mitochondrial dysfunction and inflammation compose the sarcopenic skeletal muscle alterations associated to the frailty phenotype. Inflammation appears as a common determinant for chronic diseases, sarcopenia and frailty. The strategies to prevent the frailty phenotype include an adequate amount of physical activity and exercise as well as pharmacological interventions such as myostatin inhibitors and specific androgen receptor modulators. Cell response to stress pathways such as Nrf2, sirtuins and klotho could be considered as future therapeutic interventions for the management of frailty phenotype and aging-related chronic diseases.
Collapse
Affiliation(s)
- Javier Angulo
- Unidad de Investigación Cardiovascular (IRYCIS/UFV), Hospital Universitario Ramón y Cajal, Madrid, Spain
| | - Mariam El Assar
- Instituto de Investigación Sanitaria de Getafe, Getafe, Madrid, Spain
| | | |
Collapse
|
45
|
Krishna CV, Singh J, Thangavel C, Rattan S. Role of microRNAs in gastrointestinal smooth muscle fibrosis and dysfunction: novel molecular perspectives on the pathophysiology and therapeutic targeting. Am J Physiol Gastrointest Liver Physiol 2016; 310:G449-59. [PMID: 26822916 PMCID: PMC4824177 DOI: 10.1152/ajpgi.00445.2015] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/15/2015] [Accepted: 01/20/2016] [Indexed: 01/31/2023]
Abstract
MicroRNAs (miRNAs) belong to a group of short noncoding RNA molecules with important roles in cellular biology. miRNAs regulate gene expression by repressing translation or degrading the target mRNA. Recently, a growing body of evidence suggests that miRNAs are implicated in many diseases and could be potential biomarkers. Fibrosis and/smooth muscle (SM) dysfunction contributes to the morbidity and mortality associated with several diseases of the gastrointestinal tract (GIT). Currently available therapeutic modalities are unsuccessful in efficiently blocking or reversing fibrosis and/or SM dysfunction. Recent understanding of the role of miRNAs in signaling pathway of fibrogenesis and SM phenotype switch has provided a new insight into translational research. However, much is still unknown about the molecular targets and therapeutic potential of miRNAs in the GIT. This review discusses miRNA biology, pathophysiology of fibrosis, and aging- associated SM dysfunction in relation to the deregulation of miRNAs in the GIT. We also highlight the role of selected miRNAs associated with fibrosis and SM dysfunction-related diseases of the GIT.
Collapse
Affiliation(s)
| | - Jagmohan Singh
- 2Department of Medicine, Division of Gastroenterology & Hepatology, Sidney Kimmel Medical College of Thomas Jefferson University, Philadelphia, Pennsylvania; and
| | - Chellappagounder Thangavel
- 3Department of Radiation Oncology, Sidney Kimmel Cancer Center (TC), Sidney Kimmel Medical College of Thomas Jefferson University, Philadelphia, Pennsylvania
| | - Satish Rattan
- 2Department of Medicine, Division of Gastroenterology & Hepatology, Sidney Kimmel Medical College of Thomas Jefferson University, Philadelphia, Pennsylvania; and
| |
Collapse
|
46
|
Machi JF, Dias DDS, Freitas SC, de Moraes OA, da Silva MB, Cruz PL, Mostarda C, Salemi VMC, Morris M, De Angelis K, Irigoyen MC. Impact of aging on cardiac function in a female rat model of menopause: role of autonomic control, inflammation, and oxidative stress. Clin Interv Aging 2016; 11:341-50. [PMID: 27042032 PMCID: PMC4809309 DOI: 10.2147/cia.s88441] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Objective The aim of this study was to evaluate the effects of aging on metabolic, cardiovascular, autonomic, inflammatory, and oxidative stress parameters after ovarian hormone deprivation (OVX). Methods Female Wistar rats (3 or 22 months old) were divided into: young controls, young ovariectomized, old controls, and old ovariectomized (bilateral ovaries removal). After a 9-week follow-up, physical capacity, metabolic parameters, and morphometric and cardiac functions were assessed. Subsequently, arterial pressure was recorded and cardiac autonomic control was evaluated. Oxidative stress was measured on the cardiac tissue, while inflammatory profile was assessed in the plasma. Results Aging or OVX caused an increase in body and fat weight and triglyceride concentration and a decrease in both insulin sensitivity and aerobic exercise capacity. Left ventricular diastolic dysfunction and increased cardiac overload (myocardial performance index) were reported in old groups when compared with young groups. Aging and OVX led to an increased sympathetic tonus, and vagal tonus was lower only for the old groups. Tumor necrosis factor-α and interleukin-6 were increased in old groups when compared with young groups. Glutathione redox balance (GSH/GSSG) was reduced in young ovariectomized, old controls, and old ovariectomized groups when compared with young controls, indicating an increased oxidative stress. A negative correlation was found between GSH/GSSG and tumor necrosis factor-α (r=−0.6, P<0.003). Correlations were found between interleukin-6 with adipose tissue (r=0.5, P<0.009) and vagal tonus (r=−0.7, P<0.0002); and among myocardial performance index with interleukin-6 (r=0.65, P<0.0002), sympathetic tonus (r=0.55, P<0.006), and physical capacity (r=−0.55, P<0.003). The findings in this trial showed that ovariectomy aggravated the impairment of cardiac and functional effects of aging in female rats, probably associated with exacerbated autonomic dysfunction, inflammation, and oxidative stress.
Collapse
Affiliation(s)
- Jacqueline Freire Machi
- Hypertension Unit, Heart Institute (InCor), School of Medicine, University of Sao Paulo, São Paulo, Brazil; Institute of Neuro-Immune Medicine, Nova Southeastern University, Fort Lauderdale, FL, USA
| | - Danielle da Silva Dias
- Laboratory of Translational Physiology, Universidade Nove de Julho (UNINOVE), São Paulo, Brazil
| | - Sarah Cristina Freitas
- Laboratory of Translational Physiology, Universidade Nove de Julho (UNINOVE), São Paulo, Brazil
| | | | - Maikon Barbosa da Silva
- Hypertension Unit, Heart Institute (InCor), School of Medicine, University of Sao Paulo, São Paulo, Brazil
| | - Paula Lázara Cruz
- Hypertension Unit, Heart Institute (InCor), School of Medicine, University of Sao Paulo, São Paulo, Brazil
| | - Cristiano Mostarda
- Health Adult and Child, Federal University of Maranhao (UFMA), São Luiz, Maranhão, Brazil
| | - Vera M C Salemi
- Hypertension Unit, Heart Institute (InCor), School of Medicine, University of Sao Paulo, São Paulo, Brazil
| | - Mariana Morris
- Institute of Neuro-Immune Medicine, Nova Southeastern University, Fort Lauderdale, FL, USA
| | - Kátia De Angelis
- Laboratory of Translational Physiology, Universidade Nove de Julho (UNINOVE), São Paulo, Brazil
| | - Maria-Cláudia Irigoyen
- Hypertension Unit, Heart Institute (InCor), School of Medicine, University of Sao Paulo, São Paulo, Brazil
| |
Collapse
|
47
|
Abstract
Hypertension is a highly prevalent condition with numerous health risks, and the incidence of hypertension is greatest among older adults. Traditional discussions of hypertension have largely focused on the risks for cardiovascular disease and associated events. However, there are a number of collateral effects, including risks for dementia, physical disability, and falls/fractures which are increasingly garnering attention in the hypertension literature. Several key mechanisms--including inflammation, oxidative stress, and endothelial dysfunction--are common to biologic aging and hypertension development and appear to have key mechanistic roles in the development of the cardiovascular and collateral risks of late-life hypertension. The objective of the present review is to highlight the multi-dimensional risks of hypertension among older adults and discuss potential strategies for treatment and future areas of research for improving overall care for older adults with hypertension.
Collapse
|
48
|
Assar ME, Angulo J, Rodríguez-Mañas L. Diabetes and ageing-induced vascular inflammation. J Physiol 2015; 594:2125-46. [PMID: 26435167 DOI: 10.1113/jp270841] [Citation(s) in RCA: 69] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2015] [Accepted: 09/28/2015] [Indexed: 12/16/2022] Open
Abstract
Diabetes and the ageing process independently increase the risk for cardiovascular disease (CVD). Since incidence of diabetes increases as people get older, the diabetic older adults represent the largest population of diabetic subjects. This group of patients would potentially be threatened by the development of CVD related to both ageing and diabetes. The relationship between CVD, ageing and diabetes is explained by the negative impact of these conditions on vascular function. Functional and clinical evidence supports the role of vascular inflammation induced by the ageing process and by diabetes in vascular impairment and CVD. Inflammatory mechanisms in both aged and diabetic vasculature include pro-inflammatory cytokines, vascular hyperactivation of nuclear factor-кB, increased expression of cyclooxygenase and inducible nitric oxide synthase, imbalanced expression of pro/anti-inflammatory microRNAs, and dysfunctional stress-response systems (sirtuins, Nrf2). In contrast, there are scarce data regarding the interaction of these mechanisms when ageing and diabetes co-exist and its impact on vascular function. Older diabetic animals and humans display higher vascular impairment and CVD risk than those either aged or diabetic, suggesting that chronic low-grade inflammation in ageing creates a vascular environment favouring the mechanisms of vascular damage driven by diabetes. Further research is needed to determine the specific inflammatory mechanisms responsible for exacerbated vascular impairment in older diabetic subjects in order to design effective therapeutic interventions to minimize the impact of vascular inflammation. This would help to prevent or delay CVD and the specific clinical manifestations (cognitive decline, frailty and disability) promoted by diabetes-induced vascular impairment in the elderly.
Collapse
Affiliation(s)
- Mariam El Assar
- Instituto de Investigación Sanitaria del Hospital Universitario de Getafe, Getafe, Spain
| | - Javier Angulo
- Instituto Ramón y Cajal de Investigación Sanitaria, Hospital Universitario Ramón y Cajal, Madrid, Spain
| | - Leocadio Rodríguez-Mañas
- Instituto de Investigación Sanitaria del Hospital Universitario de Getafe, Getafe, Spain.,Servicio de Geriatría, Hospital Universitario de Getafe, Getafe, Spain
| |
Collapse
|
49
|
Kullmann FA, Birder LA, Andersson KE. Translational Research and Functional Changes in Voiding Function in Older Adults. Clin Geriatr Med 2015; 31:535-48. [PMID: 26476114 PMCID: PMC4865381 DOI: 10.1016/j.cger.2015.06.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Age-related LUT dysfunctions result from complex processes controlled by multiple genetic, epigenetic, and environmental factors and account for high costs of health care. This article discusses risk factors that may play a role in age-related LUT dysfunction and presents available data comparing structural and functional changes that occur with aging in the bladder of humans and animal models. A better understanding of factors and mechanisms underlying LUT symptoms in the older population may lead to therapeutic interventions to reduce these dysfunctions.
Collapse
Affiliation(s)
- Florenta Aura Kullmann
- Renal-Electrolyte Division, Medicine Department, University of Pittsburgh School of Medicine, 3500 Terrace Street, A1220 Scaife Hall, Pittsburgh, PA 15261, USA
| | - Lori Ann Birder
- Renal-Electrolyte Division, Medicine Department, University of Pittsburgh School of Medicine, 3500 Terrace Street, A1207 Scaife Hall, Pittsburgh, PA 15261, USA; Pharmacology and Chemical Biology, University of Pittsburgh School of Medicine, 200 Lothrop Street, Pittsburgh, PA 15213, USA
| | - Karl-Erik Andersson
- Department of Urology, Institute for Regenerative Medicine, Wake Forest Baptist Medical Center, Wake Forest University School of Medicine, Medical Center Boulevard, Winston Salem, NC 27157, USA; AIAS, Aarhus Institute of Advanced Studies, Aarhus University, Høegh-Guldbergs Gade 6B, Building 1632, Aarhus C 8000, Denmark.
| |
Collapse
|
50
|
Cyclic nucleotide phosphodiesterase 1 and vascular aging. Clin Sci (Lond) 2015; 129:1077-81. [PMID: 26374857 PMCID: PMC4610264 DOI: 10.1042/cs20150605] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2015] [Accepted: 09/14/2015] [Indexed: 01/01/2023]
Abstract
VSMCs (vascular smooth muscle cells) play critical roles in arterial remodelling with aging, hypertension and atherosclerosis. VSMCs exist in diverse phenotypes and exhibit phenotypic plasticity, e.g. changing from a quiescent/contractile phenotype to an active myofibroblast-like, often called ‘synthetic’, phenotype. Synthetic VSMCs are able to proliferate, migrate and secrete ECM (extracellular matrix) proteinases and ECM proteins. In addition, they produce pro-inflammatory molecules, providing an inflammatory microenvironment for leucocyte penetration, accumulation and activation. The aging VSMCs have also shown changes in cellular phenotype, responsiveness to contracting and relaxing mediators, replicating potential, matrix synthesis, inflammatory mediators and intracellular signalling. VSMC dysfunction plays a key role in age-associated vascular remodelling. Cyclic nucleotide PDEs (phosphodiesterases), by catalysing cyclic nucleotide hydrolysis, play a critical role in regulating the amplitude, duration and compartmentalization of cyclic nucleotide signalling. Abnormal alterations of PDEs and subsequent changes in cyclic nucleotide homoeostasis have been implicated in a number of different diseases. In the study published in the latest issue of Clinical Science, Bautista Niño and colleagues have shown that, in cultured senescent human VSMCs, PDE1A and PDE1C mRNA levels are significantly up-regulated and inhibition of PDE1 activity with vinpocetine reduced cellular senescent makers in senescent VSMCs. Moreover, in the premature aging mice with genomic instability (Ercc1d/−), impaired aortic ring relaxation in response to SNP (sodium nitroprusside), an NO (nitric oxide) donor, was also largely improved by vinpocetine. More interestingly, using data from human GWAS (genome-wide association studies), it has been found that PDE1A single nucleotide polymorphisms is significantly associated with diastolic blood pressure and carotid intima–media thickening, two hallmarks of human vascular dysfunction in aging. These findings establish a strong relationship between PDE1 expression regulation and vascular abnormalities in aging.
Collapse
|