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Sesso J, Walston J, Bandeen-Roche K, Wu C, Bertoni AG, Shah S, Lima JAC, Ambale-Venkatesh B. Association of Cardiovascular Fibrosis, Remodeling, and Dysfunction With Frailty, Prefrailty, and Functional Performance: The Multi-Ethnic Study of Atherosclerosis. J Gerontol A Biol Sci Med Sci 2024; 79:glae142. [PMID: 38795337 PMCID: PMC11200193 DOI: 10.1093/gerona/glae142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Indexed: 05/27/2024] Open
Abstract
BACKGROUND Cardiovascular disease is associated with higher incidence of frailty. However, the nature of the mechanisms underlying this association remains unclear. The purpose of this study is to identify cardiovascular phenotypes most associated with physical frailty and functional performance in the Multi-Ethnic Study of Atherosclerosis (MESA). METHODS As part of the MESA study, 3 045 participants underwent cardiovascular magnetic resonance and computed tomography between 2010 and 2012. Of these, 1 743 completed a Six-Minute Walk test (6MWT) and questionnaires (follow-up exam: 2016-2018) which were used to generate a binary combined frail/prefrail versus robust score according to a modified FRAIL Scale (self-report questionnaire). Multivariable logistic (binary frail outcome) or linear (6MWT) regression assessed the association between frailty and cardiovascular structure and function, aortic stiffness, coronary artery calcium, and myocardial fibrosis (ECV, extracellular volume fraction). RESULTS Participants were 66 ± 8 years, 52% female at the time of imaging, and 29.4% were classified as frail or prefrail. Older age and female gender were associated with greater odds of being in the frail/prefrail group. Concentric left ventricular remodeling (odds ratio [OR] 1.89, p = .008; Coef. -52.9, p < .001), increased ECV (OR 1.10, p = .002; Coef. -4.0, p = .001), and worsening left atrial strain rate at early diastole (OR 1.56, p ≤ .001; Coef. -22.75, p = .027) were found to be associated with a greater likelihood of being in a frail state and lower 6MWT distance (m). All associations with 6MWT performance were attenuated with adjustments for risk factors whereas ECV and LA strain rate remained independently associated with frailty. CONCLUSIONS These findings suggest a significant overlap in pathways associated with subclinical cardiac dysfunction, cardiovascular fibrosis, and physical frailty.
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Affiliation(s)
- Jaclyn Sesso
- Department of Cardiology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Jeremy Walston
- Center on Aging and Health, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
- Division of Geriatric Medicine & Gerontology, Johns Hopkins School of Medicine, Baltimore, Maryland, USA
| | - Karen Bandeen-Roche
- Center on Aging and Health, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
- Department of Biostatistics, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - Colin Wu
- National Institutes of Health, Bethesda, Maryland, USA
| | - Alain G Bertoni
- Department of Epidemiology and Prevention, Wake Forest School of Medicine, Winston-Salem, North Carolina, USA
| | - Sanjiv Shah
- Division of Cardiology, Northwestern University, Chicago, Illinois, USA
| | - Joao A C Lima
- Department of Cardiology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
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2
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Wang C, Fang X, Tang Z, Hua Y, Zhang Z, Gu X, Liu B, Yang K, Ji X, Song X. Frailty in relation to the risk of carotid atherosclerosis and cardiovascular events in Chinese community-dwelling older adults: A five-year prospective cohort study. Exp Gerontol 2023; 180:112266. [PMID: 37536575 DOI: 10.1016/j.exger.2023.112266] [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: 06/07/2023] [Revised: 07/24/2023] [Accepted: 07/31/2023] [Indexed: 08/05/2023]
Abstract
OBJECTIVE To investigate the frailty, as estimated by accumulated health deficits, in association with the symptomatic carotid atherosclerosis and in relation to five-year cardiovascular (CVD) outcomes. METHODS This is a five-year prospective cohort study. Secondary analysis of data from the Beijing Longitudinal Study on Aging. Community-dwelling people aged 55+ years (n = 1257) have been followed between 2009 and 2014, and having carotid ultrasonography examinations with no CVD events at baseline. Frailty was quantified using the deficit accumulation-based frailty index (FI), constructed from 37 health deficits assessed at baseline. The association between the degree of frailty and carotid atherosclerosis was examined using odds ratios (OR) with multivariate logistic regression analyses. Effects of frailty on the probability of five-year cardiovascular events and mortality were evaluated using Cox proportional hazard ratios (HR). The analyses were adjusted for demographics, baseline carotid atherosclerosis status, and CVD risk factors. RESULTS The FI showed characteristic properties and was independently associated with the major carotid atherosclerosis symptoms, including carotid artery intima-media thickening (the most frail vs. the least frail: OR = 4.39: 1.98-7.82), carotid plaque (OR = 3.41: 1.28-6.54), and carotid plaque stability (OR = 1.19, 95 % CI: 1.01-3.59). Compared with the least frail, the most frail individuals were more likely to develop a cardiovascular event in five years, including myocardial infarction (HR = 3.38, 95 % CI = 1.84-6.19), stroke (HR = 1.26, 95 % CI = 1.00-5.87), CVD death (HR = 6.33, 95 % CI = 1.69-11.02), and all-cause death (HR = 5.95, 95 % CI = 2.74-8.95). CONCLUSION Deficit accumulation was closely associated with carotid atherosclerosis risks and strongly predicted five-year CVD events. The frailty index can be used to help identify older adults at high risks of CVD for improved preventive healthcare.
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Affiliation(s)
- Chunxiu Wang
- Department of Evidence-based Medicine, Xuanwu Hospital, Capital Medical University, China
| | - Xianghua Fang
- Department of Evidence-based Medicine, Xuanwu Hospital, Capital Medical University, China
| | - Zhe Tang
- Department of Evidence-based Medicine, Xuanwu Hospital, Capital Medical University, China
| | - Yang Hua
- Department of Vascular Ultrasonography, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Zhongying Zhang
- Geriatric Department, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Xiang Gu
- Geriatric Department, Youyi Hospital, Capital Medical University, Beijing, China
| | - Beibei Liu
- Department of Vascular Ultrasonography, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Kun Yang
- Department of Evidence-based Medicine, Xuanwu Hospital, Capital Medical University, China
| | - Xunming Ji
- Department of Neurological Surgery, Xuanwu Hospital, Capital Medical University, Beijing, China.
| | - Xiaowei Song
- Health Sciences and Innovation, Surrey Memorial Hospital, Fraser Health Authority, Surrey, BC, Canada.
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3
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Niebla-Cárdenas A, Bareke H, Juanes-Velasco P, Landeira-Viñuela A, Hernández ÁP, Montalvillo E, Góngora R, Arroyo-Anlló E, Silvia Puente-González A, Méndez-Sánchez R, Fuentes M. Translational research into frailty from bench to bedside: Salivary biomarkers for inflammaging. Exp Gerontol 2023; 171:112040. [PMID: 36455696 DOI: 10.1016/j.exger.2022.112040] [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: 06/07/2022] [Revised: 11/22/2022] [Accepted: 11/25/2022] [Indexed: 11/29/2022]
Abstract
Frailty is a complex physiological syndrome associated with adverse ageing and decreased physiological reserves. Frailty leads to cognitive and physical disability and is a significant cause of morbidity, mortality and economic costs. The underlying cause of frailty is multifaceted, including immunosenescence and inflammaging, changes in microbiota and metabolic dysfunction. Currently, salivary biomarkers are used as early predictors for some clinical diseases, contributing to the effective prevention and treatment of diseases, including frailty. Sample collection for salivary analysis is non-invasive and simple, which are paramount factors for testing in the vulnerable frail population. The aim of this review is to describe the current knowledge on the association between frailty and the inflammatory process and discuss methods to identify putative biomarkers in salivary fluids to predict this syndrome. This study describes the relationship between i.-inflammatory process and frailty; ii.-infectious, chronic, skeletal, metabolic and cognitive diseases with inflammation and frailty; iii.-inflammatory biomarkers and salivary fluids. There is a limited number of previous studies focusing on the analysis of inflammatory salivary biomarkers and frailty syndrome; hence, the study of salivary fluids as a source for biomarkers is an open area of research with the potential to address the increasing demands for frailty-associated biomarkers.
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Affiliation(s)
- Alfonssina Niebla-Cárdenas
- Department of Nursing and Physiotherapy, Faculty of Nursing and Physiotherapy, University of Salamanca, 37007 Salamanca, Spain
| | - Halin Bareke
- Department of Pharmaceutical Biotechnology, Faculty of Pharmacy, Institute of Health Sciences, Marmara University, Istanbul, Turkey; Department of Medicine and Cytometry General Service-Nucleus, CIBERONC CB16/12/00400, Cancer Research Centre (IBMCC/CSIC/USAL/IBSAL), 37007 Salamanca, Spain
| | - Pablo Juanes-Velasco
- Department of Medicine and Cytometry General Service-Nucleus, CIBERONC CB16/12/00400, Cancer Research Centre (IBMCC/CSIC/USAL/IBSAL), 37007 Salamanca, Spain
| | - Alicia Landeira-Viñuela
- Department of Medicine and Cytometry General Service-Nucleus, CIBERONC CB16/12/00400, Cancer Research Centre (IBMCC/CSIC/USAL/IBSAL), 37007 Salamanca, Spain
| | - Ángela-Patricia Hernández
- Department of Medicine and Cytometry General Service-Nucleus, CIBERONC CB16/12/00400, Cancer Research Centre (IBMCC/CSIC/USAL/IBSAL), 37007 Salamanca, Spain; Department of Pharmaceutical Sciences: Organic Chemistry, Faculty of Pharmacy, University of Salamanca, CIETUS, IBSAL, 37007 Salamanca, Spain
| | - Enrique Montalvillo
- Department of Medicine and Cytometry General Service-Nucleus, CIBERONC CB16/12/00400, Cancer Research Centre (IBMCC/CSIC/USAL/IBSAL), 37007 Salamanca, Spain
| | - Rafael Góngora
- Department of Medicine and Cytometry General Service-Nucleus, CIBERONC CB16/12/00400, Cancer Research Centre (IBMCC/CSIC/USAL/IBSAL), 37007 Salamanca, Spain
| | - Eva Arroyo-Anlló
- Department of Psychobiology, Neuroscience Institute of Castilla-León, Faculty of Psychology, University of Salamanca, 37007 Salamanca, Spain
| | - Ana Silvia Puente-González
- Department of Nursing and Physiotherapy, Faculty of Nursing and Physiotherapy, University of Salamanca, 37007 Salamanca, Spain; Institute of Biomedical Research of Salamanca. Primary Care, Public Health and Pharmacology Area, 37007 Salamanca, Spain.
| | - Roberto Méndez-Sánchez
- Department of Nursing and Physiotherapy, Faculty of Nursing and Physiotherapy, University of Salamanca, 37007 Salamanca, Spain; Institute of Biomedical Research of Salamanca. Primary Care, Public Health and Pharmacology Area, 37007 Salamanca, Spain
| | - Manuel Fuentes
- Department of Medicine and Cytometry General Service-Nucleus, CIBERONC CB16/12/00400, Cancer Research Centre (IBMCC/CSIC/USAL/IBSAL), 37007 Salamanca, Spain; Proteomics Unit, Cancer Research Centre (IBMCC/CSIC/USAL/IBSAL), Salamanca, Spain.
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4
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Melo GC, Carvalho ACA, Mendes MLT, do Nascimento RO, de Araújo KCGM, Tanajura DM, Santos VS, Martins-Filho PR. Association between frailty phenotype, quantification of plasma HIV-1 RNA, CD4 cell count and HAART in HIV-positive subjects: a systematic review and meta-analysis of observational studies. AIDS Care 2022; 34:1159-1168. [PMID: 34292108 DOI: 10.1080/09540121.2021.1956414] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
HIV infection causes a constant activation of the immune system and contributes to an enhanced systemic pro-inflammatory cytokine milieu, which has been associated with premature aging and frailty. We performed a systematic review and meta-analysis to analyze whether the HIV-1 RNA load, CD4+ T-lymphocyte counts and exposure to HAART in HIV-positive subjects are associated with frailty phenotype. Searches were performed in PubMed, SCOPUS, Lilacs, Web of Science, Google Scholar, and OpenThesis databases. We used the odds ratio as a measure of the association. We used either a fixed or random-effects model to pool the results of individual studies depending on the presence of heterogeneity. Eleven studies were included in the review. Data from 8035 HIV-positive subjects were analyzed; 2413 of the subjects had viral load detectable, 981 had a CD4T-cell count <350 cells/μL, and 1342 had HAART exposure information. We found an association between frailty and CD4T-cell count <350 cells/μL (OR 2.68, CI 95% 1.68-4.26, I2 = 46%), HIV-1 RNA load detectable (OR 1.71, CI 95% 1.38-2.12, I2 = 0%), and protease inhibitor-containing HAART regimen (OR 2.21, CI 95% 1.26-3.89, I2 = 0%). Further studies are necessary to evaluate the effects of other factors on the development of clinical features related to frailty.
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Affiliation(s)
| | - Aline Carla Araújo Carvalho
- State University of Health Sciences of Alagoas, Maceió, Brazil.,Investigative Pathology Laboratory, Federal University of Sergipe, Aracaju, Brazil.,Cesmac University Center, Maceió, Alagoas, Brazil
| | | | | | | | - Diego Moura Tanajura
- Investigative Pathology Laboratory, Federal University of Sergipe, Aracaju, Brazil
| | - Victor Santana Santos
- Centre for Epidemiology and Public Health, Federal University of Alagoas, Arapiraca, Brazil
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5
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Systematic review and meta-analysis on coronary calcifications in COVID-19. Emerg Radiol 2022; 29:631-643. [PMID: 35501615 PMCID: PMC9059910 DOI: 10.1007/s10140-022-02048-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Accepted: 04/11/2022] [Indexed: 12/15/2022]
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6
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Kuniholm MH, Vásquez E, Appleton AA, Kingsley L, Palella FJ, Budoff M, Michos ED, Fox E, Jones D, Adimora AA, Ofotokun I, D'souza G, Weber KM, Tien PC, Plankey M, Sharma A, Gustafson DR. Cardiovascular risk score associations with frailty in men and women with or at risk for HIV. AIDS 2022; 36:237-347. [PMID: 34934019 PMCID: PMC8711611 DOI: 10.1097/qad.0000000000003107] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
OBJECTIVE To understand the relationship between cardiovascular disease (CVD) risk and frailty among men (MWH) and women living with HIV (WWH), or at risk for HIV. DESIGN We considered 10-year coronary heart disease and atherosclerotic CVD risk by Framingham risk score (FRS, 2001 National Cholesterol Education Program Adult Treatment Program III) and Pooled Cohort Equations (PCE, 2013 American College of Cardiology/American Heart Association) in relation to the Fried Frailty Phenotype (FFP) in the Multicenter AIDS Cohort Study (MACS) and Women's Interagency HIV Study (WIHS). METHODS FFP was ascertained in MACS from 2004 to 2019 and in WIHS from 2005 to 2006 and 2011-2019. FFP score at least three of five components defined frailty. Repeated measures logistic regression (both cohorts) and Cox proportional hazards regression (MACS) were performed, controlled for education, income, cholesterol medication and hepatitis C virus serostatus, and among MWH and WWH, CD4+ cell count/μl, antiretroviral therapy, and HIV viral load. RESULTS There were 5554 participants (1265 HIV seronegative/1396 MWH; 768 seronegative/1924 WWH) included. Among men, high-risk FRS was associated with increased risk of incident frailty among seronegative [adjusted hazard ratio (aHR)) = 2.12, 95% confidence interval (CI):1.22-3.69] and MWH (aHR = 2.19, 95% CI: 1.33-3.61). Similar associations were seen with high-risk PCE and incident frailty among SN (aHR = 1.88, 95% CI: 1.48-2.39) and MWH (aHR = 1.59, 95% CI: 1.26-2.00). Among women, high-risk PCE was associated with frailty in SN [adjusted odds ratio (aOR) = 1.43, 95% CI: 1.02-2.00] and WWH (aOR = 1.36, 95% CI: 1.08-1.71); however, high-risk FRS was not (seronegative: aOR = 1.03, 95% CI: 0.30-3.49; WWH: aOR = 0.86, 95% CI: 0.23-3.20). CONCLUSION Higher CVD risk was associated with increased frailty regardless of HIV serostatus among men and women. These findings may inform clinical practices of screening for frailty.
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Affiliation(s)
- Mark H Kuniholm
- Department of Epidemiology and Biostatistics, University at Albany, State University of New York, Rensselaer, New York
| | - Elizabeth Vásquez
- Department of Epidemiology and Biostatistics, University at Albany, State University of New York, Rensselaer, New York
| | - Allison A Appleton
- Department of Epidemiology and Biostatistics, University at Albany, State University of New York, Rensselaer, New York
| | - Lawrence Kingsley
- Department of Infectious Diseases and Microbiology, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Frank J Palella
- Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - Matthew Budoff
- Department of Medicine, David Geffen School of Medicine, University of California, Los Angeles, California
| | | | - Ervin Fox
- Department of Medicine, University of Mississippi Medical Center, Jackson, Mississippi
| | - Deborah Jones
- Department of Psychiatry & Behavioral Sciences, Miller School of Medicine, University of Miami, Miami, Florida
| | - Adaora A Adimora
- Department of Medicine, University of North Carolina School of Medicine, Chapel Hill, North Carolina
| | - Igho Ofotokun
- Department of Medicine, Emory University School of Medicine, Atlanta, Georgia
| | - Gypsyamber D'souza
- Department of Epidemiology, Johns Hopkins Medical Institutions, Baltimore, Maryland
| | - Kathleen M Weber
- Cook County Health/Hektoen Institute of Medicine, Chicago, Illinois
| | - Phyllis C Tien
- Department of Medicine, University of California, San Francisco, and Department of Veterans Affairs, San Francisco, California
| | - Michael Plankey
- Department of Medicine, Georgetown University Medical Center, Washington, DC
| | - Anjali Sharma
- Department of Medicine, Albert Einstein College of Medicine, Bronx
| | - Deborah R Gustafson
- Department of Neurology, State University of New York Downstate Health Sciences University, Brooklyn, New York, USA
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7
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Soares C, Samara A, Yuyun MF, Echouffo-Tcheugui JB, Masri A, Samara A, Morrison AR, Lin N, Wu WC, Erqou S. Coronary Artery Calcification and Plaque Characteristics in People Living With HIV: A Systematic Review and Meta-Analysis. J Am Heart Assoc 2021; 10:e019291. [PMID: 34585590 PMCID: PMC8649136 DOI: 10.1161/jaha.120.019291] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Background Studies have reported that people living with HIV have higher burden of subclinical cardiovascular disease, but the data are not adequately synthesized. We performed meta‐analyses of studies of coronary artery calcium and coronary plaque in people living with HIV. Methods and Results We performed systematic search in electronic databases, and data were abstracted in standardized forms. Study‐specific estimates were pooled using meta‐analysis. 43 reports representing 27 unique studies and involving 10 867 participants (6699 HIV positive, 4168 HIV negative, mean age 52 years, 86% men, 32% Black) were included. The HIV‐positive participants were younger (mean age 49 versus 57 years) and had lower Framingham Risk Score (mean score 6 versus 18) compared with the HIV‐negative participants. The pooled estimate of percentage with coronary artery calcium >0 was 45% (95% CI, 43%–47%) for HIV‐positive participants, and 52% (50%–53%) for HIV‐negative participants. This difference was no longer significant after adjusting for difference in Framingham Risk Score between the 2 groups. The odds ratio of coronary artery calcium progression for HIV‐positive versus ‐negative participants was 1.64 (95% CI, 0.91–2.37). The pooled estimate for prevalence of noncalcified plaque was 49% (95% CI, 47%–52%) versus 20% (95% CI, 17%–23%) for HIV‐positive versus HIV‐negative participants, respectively. Odds ratio for noncalcified plaque for HIV‐positive versus ‐negative participants was 1.23 (95% CI, 1.08–1.38). There was significant heterogeneity that was only partially explained by available study‐level characteristics. Conclusions People living with HIV have higher prevalence of noncalcified coronary plaques and similar prevalence of coronary artery calcium, compared with HIV‐negative individuals. Future studies on coronary artery calcium and plaque progression can further elucidate subclinical atherosclerosis in people living with HIV.
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Affiliation(s)
- Cullen Soares
- Department of Medicine University of Maryland Baltimore MD
| | - Amjad Samara
- Washington University School of Medicine St. Louis MO
| | - Matthew F Yuyun
- Department of Medicine Harvard Medical School Boston MA.,Division of Cardiology and Vascular Medicine Boston Healthcare System Boston MA.,Department of Medicine Boston University School of Medicine Boston MA
| | - Justin B Echouffo-Tcheugui
- Division of Endocrinology, Diabetes & Metabolism Department of Medicine Johns Hopkins School of Medicine Baltimore MD
| | - Ahmad Masri
- Department of Medicine Oregon Health & Science University Portland OR
| | - Ahmad Samara
- Department of Medicine An-Najah National University Nablus Palestine
| | - Alan R Morrison
- Division of Cardiology VA Providence Medical Center Providence RI.,Department of Medicine Alpert Medical School of Brown University Providence RI
| | - Nina Lin
- Department of Medicine Boston University Boston MA
| | - Wen-Chih Wu
- Division of Cardiology VA Providence Medical Center Providence RI.,Department of Medicine Alpert Medical School of Brown University Providence RI
| | - Sebhat Erqou
- Division of Cardiology VA Providence Medical Center Providence RI.,Department of Medicine Alpert Medical School of Brown University Providence RI
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Alomar FA, Tian C, Dash PK, McMillan JM, Gendelman HE, Gorantla S, Bidasee KR. Efavirenz, atazanavir, and ritonavir disrupt sarcoplasmic reticulum Ca 2+ homeostasis in skeletal muscles. Antiviral Res 2021; 187:104975. [PMID: 33450312 DOI: 10.1016/j.antiviral.2020.104975] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Revised: 10/05/2020] [Accepted: 11/07/2020] [Indexed: 01/05/2023]
Abstract
While muscle fatigue, pain and weakness are common co-morbidities in HIV-1 infected people, their underlying cause remain poorly defined. To this end, we evaluated whether the common antiretroviral drugs efavirenz (EFV), atazanavir (ATV) and ritonavir (RTV) could be a contributing factor by pertubating sarcoplasmic reticulum (SR) Ca2+ cycling. In live-cell imaging, EFV (6.0 μM), ATV (6.0 μM), and RTV (3.0 μM) elicited Ca2+ transients and blebbing of the plasma membranes of C2C12 skeletal muscle myotubes. Pretreating C2C12 skeletal muscle myotubes with the SR Ca2+ release channel blocker ryanodine (50 μM), slowed the rate and amplitude of Ca2+ release from and reuptake of Ca2+ into the SR. EFV, ATV and RTV (1 nM - 20 μM) potentiated and then displaced [3H] ryanodine binding to rabbit skeletal muscle ryanodine receptor Ca2+ release channel (RyR1). These drugs at concentrations 0.25-31.2 μM also increased and or decreased the open probability of RyR1 by altering its gating and conductance. ATV (≤5 μM) potentiated and >5μM inhibited the ability of sarco (endo)plasmic reticulum Ca2+-ATPase (SERCA1) to hydrolyze ATP and transport Ca2+. RTV (2.5-31.5 μM) dose-dependently inhibited SERCA1-mediated, ATP-dependent Ca2+ transport. EFV (0.25-31.5 μM) had no measurable effect on SERCA1's ability to hydrolyze ATP and transport Ca2+. These data support the notion that EFV, ATV and RTV could be contributing to skeletal muscle co-morbidities in PLWH by modulating SR Ca2+ homeostasis.
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Affiliation(s)
- Fadhel A Alomar
- Department of Pharmacology and Toxicology, College of Clinical Pharmacy, Imam Abdulrahman Bin Faisal University, Dammam, 31441, Saudi Arabia
| | - Chengju Tian
- Departments of Pharmacology and Experimental Neuroscience, USA
| | - Prasanta K Dash
- Departments of Pharmacology and Experimental Neuroscience, USA
| | - JoEllyn M McMillan
- Departments of Pharmacology and Experimental Neuroscience, USA; Environment and Occupational Health, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | | | - Santhi Gorantla
- Departments of Pharmacology and Experimental Neuroscience, USA
| | - Keshore R Bidasee
- Departments of Pharmacology and Experimental Neuroscience, USA; Environment and Occupational Health, University of Nebraska Medical Center, Omaha, NE, 68198, USA; Nebraska Redox Biology Center, Lincoln, NE, USA.
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9
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Lee S, Chao C, Huang J, Huang K. Vascular Calcification as an Underrecognized Risk Factor for Frailty in 1783 Community-Dwelling Elderly Individuals. J Am Heart Assoc 2020; 9:e017308. [PMID: 32875940 PMCID: PMC7727009 DOI: 10.1161/jaha.120.017308] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Background Vascular calcification (VC) is associated with high morbidity and mortality among older adults, a population that exhibits a higher tendency for developing frailty at the same time. Whether VC serves as a risk factor for the development of frailty in this population remains unclear. Methods and Results We analyzed a prospectively assembled cohort of community‐dwelling older adults between 2014 and 2017 (n=1783). Frailty and prefrailty were determined on the basis of the Study of Osteoporotic Fractures criteria, and VC was measured using semiquantitative aortic arch calcification (AAC) and abdominal aortic calcification scoring. We conducted multiple logistic regression with prefrailty or frailty as the dependent variable, incorporating sociodemographic profiles, comorbidities, medications, laboratory data, AAC status/severity, and other geriatric phenotypes. Among all participants, 327 (18.3%) exhibited either prefrailty (15.3%) or frailty (3.1%), and 648 (36.3%) exhibited AAC. After adjusting for multiple confounders, we found that AAC incidence was associated with a substantially higher probability of prefrailty or frailty (odds ratio [OR], 11.9; 95% CI, 7.9–15.4), with a dose‐responsive relationship (OR for older adults with AAC categories 1, 2, and 3 was 9.3, 13.6, and 52.5, respectively). Similar association was observed for older adults with abdominal aortic calcification (OR, 5.0; 95% CI, 1.3–19.5), and might be replicable in another cohort of patients with end‐stage renal disease. Conclusions Severity of VC exhibited a linear positive relationship with frailty in older adults. Our findings suggest that a prompt diagnosis and potential management of VC may assist in risk mitigation for patients with frailty.
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Affiliation(s)
- Szu‐Ying Lee
- Nephrology Division, Department of Internal MedicineNational Taiwan University Hospital Yunlin BranchYunlin CountyTaiwan
| | - Chia‐Ter Chao
- Nephrology Division, Department of Internal MedicineNational Taiwan University Hospital BeiHu BranchTaipeiTaiwan
- Geriatric and Community Medicine Research CenterNational Taiwan University Hospital BeiHu BranchTaipeiTaiwan
- Graduate Institute of ToxicologyNational Taiwan University College of MedicineTaipeiTaiwan
| | - Jenq‐Wen Huang
- Nephrology Division, Department of Internal MedicineNational Taiwan University Hospital Yunlin BranchYunlin CountyTaiwan
| | - Kuo‐Chin Huang
- Nephrology Division, Department of Internal MedicineNational Taiwan University Hospital BeiHu BranchTaipeiTaiwan
- Geriatric and Community Medicine Research CenterNational Taiwan University Hospital BeiHu BranchTaipeiTaiwan
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10
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Del Brutto OH, Mera RM, Recalde BY, Costa AF, Sedler MJ. Mediation of age in the association between frailty and large artery atherosclerosis burden - A population study in community-dwelling older adults. J Stroke Cerebrovasc Dis 2020; 29:104845. [PMID: 32389559 DOI: 10.1016/j.jstrokecerebrovasdis.2020.104845] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Revised: 03/11/2020] [Accepted: 03/23/2020] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND A systematic evaluation of the relationship between frailty and large artery atherosclerosis (LAA) burden has not been carried out. Here, we aimed to assess the association between these variables in community-dwelling older adults living in Atahualpa (rural Ecuador). METHODS Participants underwent frailty assessment and determinations of LAA in several vascular beds. Frailty was estimated by the Edmonton Frailty Scale (EFS). LAA was investigated in the peripheral vascular bed by means of ankle-brachial index determinations, in the extracranial carotid bed by B-mode ultrasounds, and in the intracranial bed by high-resolution CT and time-of-flight MRA. Ordinal logistic regression with interaction models were fitted to assess the independent association between levels of cognitive frailty and the LAA burden. Casual mediation and sensitivity analysis, and the E value, evaluated the effect of age in this association. RESULTS Out of 331 included individuals, 176 (53%) were robust and the remaining 47% were either pre-frail (n = 78) or frail (n = 77). Atherosclerosis affected only one (any) vascular bed in 111 (34%) individuals, two beds in 75 (23%), and three beds in 22 (7%); the remaining 123 (37%) had no evidence of atherosclerosis. Univariate analysis showed a significant inverse association between the robust status of cognitive frailty and LAA burden (p = 0.006). This association vanishes after considering the effect of covariates. Causal mediation analysis confirms that age captures 51.8% (95% C.I.: 34.6 to 97.2%) of the effect of the association. Sensitivity analysis and E-value computation find that the amount of bias provided by age is enough to explain away the effect estimate. CONCLUSIONS This study found no independent relationship between cognitive frailty and LAA burden.
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Affiliation(s)
- Oscar H Del Brutto
- School of Medicine, Universidad Espíritu Santo - Ecuador, Air Center 3542, PO Box 522970, Samborondón, Miami, FL 33152-2970, Ecuador.
| | - Robertino M Mera
- Department of Epidemiology, Gilead Sciences, Inc., Foster City, CA, USA.
| | | | - Aldo F Costa
- Community Center, The Atahualpa Project, Atahualpa, Ecuador.
| | - Mark J Sedler
- Renaissance School of Medicine, Stony Brook University, New York, NY, USA.
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Risk Factors for Frailty and Cardiovascular Diseases: Are They the Same? ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2020; 1216:39-50. [PMID: 31894545 DOI: 10.1007/978-3-030-33330-0_5] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Cardiovascular disease burden increases with the increasing age of populations. Also, with increasing longevity, some individuals are ageing along an unfavourable path developing frailty syndrome. Epidemiologic studies indicate that frailty is overrepresented among the persons with cardiovascular disease. On the other hand, frail subjects tend to be burdened with cardiovascular disease to a greater degree than their biologically better-off peers. Hypertension, diabetes, and obesity, especially abdominal, and at least some other risk factors appear to be shared between frailty and cardiovascular disease. The probable common underlying pathophysiologic feature is inflammation and associated phenomena, possibly having its root in the inflammageing. We discuss these issues based on the results of original studies, comprehensive literature reviews, and metaanalyses, by hundreds of dedicated researchers worldwide.
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Amano H, Noike R, Yabe T, Watanabe I, Okubo R, Koizumi M, Toda M, Ikeda T. Frailty and coronary plaque characteristics on optical coherence tomography. Heart Vessels 2019; 35:750-761. [DOI: 10.1007/s00380-019-01547-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Accepted: 12/13/2019] [Indexed: 12/20/2022]
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Patel N, Li D, Nakanishi R, Fatima B, Andreini D, Pontone G, Conte E, O'Rourke R, Jayawardena E, Hamilton-Craig C, Nimmagadda M, Budoff MJ. Comparison of Whole Heart Computed Tomography Scanners for Image Quality Lower Radiation Dosing in Coronary Computed Tomography Angiography: The CONVERGE Registry. Acad Radiol 2019; 26:1443-1449. [PMID: 30683612 DOI: 10.1016/j.acra.2019.01.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Revised: 12/31/2018] [Accepted: 01/02/2019] [Indexed: 11/30/2022]
Abstract
RATIONALE AND OBJECTIVES Novel technology in coronary computed tomographic angiography allows assessment of coronary artery disease with high image quality (IQ). There are currently two wide detector "whole heart" coverage scanners available, which avoid misregistration artifacts. However, there are no data directly comparing IQ between the two scanners. The aim of the current study is to investigate if IQ is different between the most scanners of GE and Toshiba broad detector scanners. MATERIALS AND METHODS Prospective, observational, multicenter international cohort study comparing 236 consecutive patients who underwent coronary computed tomographic angiography using whole-heart scanners; 126 patients on scanner S1 ( Aquilion ONE Vision, Toshiba), and 110 patients on scanner S2 (Revolution CT, GE Healthcare). Hounsfield units were measured using regions of interest in the descending aorta at 6 points (cranial slice, level of the visualized first, second, third, and fourth spines, and the caudal slice). We also compared the coverage length (z-axis) of the full width field of view between a single rotation of the two scanners. RESULTS Evaluating mean CT attenuation values Hounsfield units through the scan range, are progressively reduced across the descending aorta in the S1 group, resulting in the larger difference of contrast brightness between the cranial and caudal slices compared to the S2 group (absolute difference: S2 13.0 ± 4.4 vs S1 141.9 ± 16.4, p < 0.0001; Percent difference: 19.3 ± 2.1 vs -3.4 ± 1.2, <0.0001). The standard deviation (SD) is similar at the cranial slice between the two scanners, however, the S1 group demonstrated higher SD-differential from cranial to caudal than S2 group. Median radiation exposure was significantly lower for the S2 scanner 1.50 ± 0.75 mSv vs the S1 system 1.9 mSv (IQR 1.7-2.7 mSv) (p = 0.01). Z-axis coverage was larger for the S2 scanner 152.5 mm (244 slices × 0.625 mm/slice) than 133 mm for S1 (266 slices × 0.5 mm/slice). CONCLUSION Although both "volume" scanners cover the whole heart z-axis with one beat, scans using the S1 scanner have a larger variability in attenuation values throughout the scan range, resulting in 20% increase in nonuniformity from cranial to caudal slice. Additionally, SD variation across the field of view, a metric of noise, is larger when using the S1 scanner vs the S2 scanner. These results indicate that the GE Revolution CT has more uniform contrast enhancement and more coverage, lower radiation and lower image noise compared to the Toshiba Aquilion ONE Vision system.
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Affiliation(s)
- Nirali Patel
- Department of Medicine, Los Angeles Biomedical Research Institute, Torrance, CA
| | - Dong Li
- Department of Medicine, Los Angeles Biomedical Research Institute, Torrance, CA
| | - Rine Nakanishi
- Department of Medicine, Los Angeles Biomedical Research Institute, Torrance, CA; Department of Cardiovascular Medicine, Toho University Graduate School of Medicine, Tokyo, Japan
| | - Badiha Fatima
- Department of Medicine, Los Angeles Biomedical Research Institute, Torrance, CA
| | - Daniele Andreini
- Centro Cardiologico Monzino, IRCCS, Milan, Italy; Department of Clinical Sciences and Community Health, Cardiovascular Section, University of Milan, Italy
| | | | | | - Rachael O'Rourke
- Department of Medical Imaging, The Prince Charles Hospital, Brisbane, Queensland Australia; University of Queensland, Brisbane, Queensland, Australia
| | - Eranthi Jayawardena
- Department of Medicine, Los Angeles Biomedical Research Institute, Torrance, CA
| | - Christian Hamilton-Craig
- Department of Medical Imaging, The Prince Charles Hospital, Brisbane, Queensland Australia; University of Queensland, Brisbane, Queensland, Australia
| | - Manojna Nimmagadda
- Department of Medicine, Los Angeles Biomedical Research Institute, Torrance, CA
| | - Matthew J Budoff
- Department of Medicine, Los Angeles Biomedical Research Institute, Torrance, CA.
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Tanaka T, Kishi S, Ninomiya K, Tomii D, Koseki K, Sato Y, Okuno T, Sato K, Koike H, Yahagi K, Komiyama K, Aoki J, Tanabe K. Impact of abdominal fat distribution, visceral fat, and subcutaneous fat on coronary plaque scores assessed by 320-row computed tomography coronary angiography. Atherosclerosis 2019; 287:155-161. [DOI: 10.1016/j.atherosclerosis.2019.06.910] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Revised: 06/11/2019] [Accepted: 06/21/2019] [Indexed: 11/28/2022]
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Abstract
OBJECTIVE GlycA, a novel NMR biomarker of inflammation, has been associated with incident cardiovascular disease (CVD) in the general population, but its association with CVD among HIV-infected individuals is unknown. We examined the associations between GlycA and subclinical coronary plaque among HIV-infected and HIV-uninfected men participating in Multicenter AIDS Cohort Study (MACS). DESIGN Cross-sectional analysis of 935 men with plasma measurement of GlycA and noncontrast cardiac computed tomography (CT) and/or coronary CT angiography. METHODS We used multivariable Poisson and linear regression to assess associations of GlycA with prevalent coronary atherosclerosis and plaque extent, respectively. RESULTS Mean ± SD age was 54 ± 7 years; 31% were black; 63% HIV-infected. GlycA levels were higher in HIV-infected compared with HIV-uninfected men (397 ± 68 vs. 380 ± 60 μmol/l, P = 0.0001) and higher for men with detectable viral load vs. undetectable (413 ± 79 vs. 393 ± 65 μmol/l, P = 0.004). After adjusting for HIV serostatus, demographic and CVD risk factors, every 1SD increment in GlycA level was associated with a higher prevalence of coronary artery calcium (CAC >0) [prevalence ratio 1.09 (95% CI 1.03-1.15)] and coronary stenosis at least 50% [1.20 (1.02-1.41)]. These associations were not significantly altered after adjusting for traditional inflammatory biomarkers or differ by HIV serostatus. Among men with plaque, GlycA was positively associated with the extent of CAC and total plaque. CONCLUSION HIV infection was associated with higher GlycA levels. In both HIV-infected and HIV-uninfected individuals, GlycA was significantly associated with several measures of subclinical coronary atherosclerosis, independent of other CVD risk factors and inflammatory biomarkers. These findings suggest the potential role of GlycA in CVD risk stratification among HIV patients.
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Wu S, Chen J, Wang S, Jiang M, Wang X, Wen Y. Effect of Tai Chi Exercise on Balance Function of Stroke Patients: A Meta-Analysis. Med Sci Monit Basic Res 2018; 24:210-215. [PMID: 30504762 PMCID: PMC6289026 DOI: 10.12659/msmbr.911951] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Background Tai Chi is an ancient form of physical activity that has been shown to improve cardiovascular function, but to date there had been no comprehensive systematic review on the effect of Tai Chi exercise on balance function of patients with stroke. This study evaluated the effect of Tai Chi exercise on balance function in stroke patients. Material/Methods PubMed, Cochrane library, and China National Knowledge Information databases and the Wan Fang medical network were searched to collect the articles. The random-effects model was used to assess the effect of Tai Chi exercise on balance function of stroke patients. Results Six studies were chosen to perform the meta-analysis according to the inclusion and exclusion criteria. There were significant improvements of balance on Berg Balance Scale score (MD=4.823, 95% CI: 2.138–7.508), the standing balance with fall rates (RR=0.300, 95%CI: 0.120–0.770), functional reach test and dynamic gait index in Tai Chi intervention group compared to the control intervention group. However, the short physical performance battery for balance (SPBB) showed Tai Chi did not significantly improve the ability of balance for stroke patients (MD=0.293, 95%CI: −0.099~0.685). Conclusions Tai Chi exercise might have a significant impact in improving balance efficiency by increasing BBS score and reducing fall rate.
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Affiliation(s)
- Shouzhi Wu
- School of Public Foundation, Wannan Medical College, Wuhu, Anhui, China (mainland)
| | - Jian Chen
- Hunan Provincial People's Hospital, Changsha, Hunan, China (mainland)
| | - Shuyi Wang
- School of Laboratory Medicine, Wannan Medical College, Wuhu, Anhui, China (mainland)
| | - Mingfei Jiang
- School of Laboratory Medicine, Wannan Medical College, Wuhu, Anhui, China (mainland)
| | - Ximei Wang
- School of Laboratory Medicine, Wannan Medical College, Wuhu, Anhui, China (mainland)
| | - Yufeng Wen
- School of Laboratory Medicine, Wannan Medical College, Wuhu, Anhui, China (mainland)
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Tibuakuu M, Zhao D, Saxena A, Brown TT, Jacobson LP, Palella FJ, Witt MD, Koletar SL, Margolick JB, Guallar E, Korada SKC, Budoff MJ, Post WS, Michos ED. Low thigh muscle mass is associated with coronary artery stenosis among HIV-infected and HIV-uninfected men: The Multicenter AIDS Cohort Study (MACS). J Cardiovasc Comput Tomogr 2018; 12:131-138. [PMID: 29396194 DOI: 10.1016/j.jcct.2018.01.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/24/2017] [Revised: 01/16/2018] [Accepted: 01/22/2018] [Indexed: 01/06/2023]
Abstract
BACKGROUND HIV-infected individuals are at increased risk for both sarcopenia and cardiovascular disease. Whether an association between low muscle mass and subclinical coronary artery disease (CAD) exists, and if it is modified by HIV serostatus, are unknown. METHODS We performed cross-sectional analysis of 513 male MACS participants (72% HIV-infected) who underwent mid-thigh computed tomography (CT) and non-contrast cardiac CT for coronary artery calcium (CAC) during 2010-2013. Of these, 379 also underwent coronary CT angiography for non-calcified coronary plaque (NCP) and obstructive coronary stenosis ≥50%. Multivariable-adjusted Poisson regression was used to estimate prevalence risk ratios of associations between low muscle mass (<20th percentile of the HIV-uninfected individuals in the sample) and CAC, NCP and obstructive stenosis. RESULTS The prevalence of low thigh muscle mass was similar by HIV serostatus (20%). There was no association of low muscle mass with CAC or NCP. However, low thigh muscle mass was significantly associated with a 2.5-fold higher prevalence of obstructive coronary stenosis, after adjustment for demographics and traditional CAD risk factors [PR 2.46 (95% CI 1.51, 4.01)]. This association remained significant after adjustment for adiposity, inflammation, and physical activity. There was no significant interaction by HIV serostatus (p-interaction = 0.90). CONCLUSIONS In this exploratory analysis, low thigh muscle mass was significantly associated with subclinical obstructive coronary stenosis. Additional studies involving larger sample sizes and prospective analyses are needed to confirm the potential utility of measuring mid-thigh muscle mass for identifying individuals at increased risk for obstructive CAD who might benefit from more aggressive risk factor management.
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Affiliation(s)
- Martin Tibuakuu
- Ciccarone Center for the Prevention of Heart Disease, Johns Hopkins University School of Medicine, Baltimore, MD, USA; Department of Medicine, St. Luke's Hospital, Chesterfield, MO, USA
| | - Di Zhao
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Ankita Saxena
- Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Todd T Brown
- Division of Endocrinology, Diabetes, and Metabolism, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Lisa P Jacobson
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Frank J Palella
- Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Mallory D Witt
- Department of Medicine, Harbor-UCLA Medical Center, Torrance, CA, USA; Los Angeles Biomedical Research Institute at Harbor-UCLA Medical Center, USA
| | - Susan L Koletar
- Division of Infectious Diseases, Ohio State University, Columbus, OH, USA
| | - Joseph B Margolick
- Department of Molecular Microbiology and Immunology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Eliseo Guallar
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | | | - Matthew J Budoff
- Los Angeles Biomedical Research Institute at Harbor-UCLA Medical Center, USA
| | - Wendy S Post
- Ciccarone Center for the Prevention of Heart Disease, Johns Hopkins University School of Medicine, Baltimore, MD, USA; Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Erin D Michos
- Ciccarone Center for the Prevention of Heart Disease, Johns Hopkins University School of Medicine, Baltimore, MD, USA; Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA.
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Atherosclerosis in frailty: Not frailty in atherosclerosis. Atherosclerosis 2017; 266:226-227. [DOI: 10.1016/j.atherosclerosis.2017.09.014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/10/2017] [Accepted: 09/12/2017] [Indexed: 01/16/2023]
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