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Pavone M, Goglia M, Taliento C, Lecointre L, Bizzarri N, Fanfani F, Fagotti A, Scambia G, Marescaux J, Querleu D, Seeliger B, Akladios C. Obesity paradox: is a high body mass index positively influencing survival outcomes in gynecological cancers? A systematic review and meta-analysis. Int J Gynecol Cancer 2024; 34:1253-1262. [PMID: 38642923 DOI: 10.1136/ijgc-2023-005252] [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] [Indexed: 04/22/2024] Open
Abstract
OBJECTIVE Obesity represents an exponentially growing preventable disease leading to different health complications, particularly when associated with cancer. In recent years, however, an 'obesity paradox' has been hypothesized where obese individuals affected by cancer counterintuitively show better survival rates. The aim of this systematic review and meta-analysis is to assess whether the prognosis in gynecological malignancies is positively influenced by obesity. METHODS This study adheres to PRISMA guidelines and is registered with PROSPERO. Studies reporting the impact of a body mass index (BMI) of >30 kg/m2 compared with <30 kg/m2 in patients with gynecological cancers listed in PubMed, Google Scholar and ClinicalTrials.gov were included in the analysis. The Quality Assessment of Diagnostic Accuracy Studies 2 tool (QUADAS-2) was used for quality assessment of the selected articles. RESULTS Twenty-one studies were identified for the meta-analysis, including 14 108 patients with cervical, ovarian, or endometrial cancer. There was no benefit in 5-year overall survival for obese patients compared with non-obese patients (OR 1.2, 95% CI 1.00 to 1.44, p=0.05; I2=71%). When pooling for cancer sub-groups, there were no statistically significant differences in 5-year overall survival in patients with cervical cancer and 5-year overall survival and progression-free survival in patients with ovarian cancer. For obese women diagnosed with endometrial cancer, a significant decrease of 44% in 5-year overall survival (p=0.01) was found, with no significant difference in 5-year disease-free survival (p=0.78). CONCLUSION According to the results of the present meta-analysis, a BMI of ≥30 kg/m2 does not have a positive prognostic effect on survival compared with a BMI of <30 kg/m2 in women diagnosed with gynecological cancers. The existence of the 'obesity paradox' in other fields, however, suggests the importance of further investigations with prospective studies.
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Affiliation(s)
- Matteo Pavone
- Institute of Image-Guided Surgery, IHU Strasbourg, Strasbourg, France
- UOC Ginecologia Oncologica, Dipartimento di Scienze per la salute della Donna e del Bambino e di Sanità Pubblica, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Roma, Italy
- Research Institute against Digestive Cancer, IRCAD France, Strasbourg, France
| | - Marta Goglia
- Research Institute against Digestive Cancer, IRCAD France, Strasbourg, France
- Department of Medical and Surgical Science and Translational Medicine, Faculty of Medicine and Psycology, Sapienza University of Rome, Rome, Italy
| | - Cristina Taliento
- Department of Obstetrics and Gynecology, University Hospital Ferrara, Ferrara, Italy
- Department of Obstetrics and Gynecology, University Hospitals Leuven, Leuven, Belgium
| | - Lise Lecointre
- Institute of Image-Guided Surgery, IHU Strasbourg, Strasbourg, France
- Department of Gynecology, Hôpitaux universitaires de Strasbourg, Strasbourg, France
| | - Nicolò Bizzarri
- UOC Ginecologia Oncologica, Dipartimento di Scienze per la salute della Donna e del Bambino e di Sanità Pubblica, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Roma, Italy
| | - Francesco Fanfani
- UOC Ginecologia Oncologica, Dipartimento di Scienze per la salute della Donna e del Bambino e di Sanità Pubblica, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Roma, Italy
| | - Anna Fagotti
- UOC Ginecologia Oncologica, Dipartimento di Scienze per la salute della Donna e del Bambino e di Sanità Pubblica, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Roma, Italy
| | - Giovanni Scambia
- UOC Ginecologia Oncologica, Dipartimento di Scienze per la salute della Donna e del Bambino e di Sanità Pubblica, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Roma, Italy
| | - Jacques Marescaux
- Research Institute against Digestive Cancer, IRCAD France, Strasbourg, France
| | - Denis Querleu
- Institute of Image-Guided Surgery, IHU Strasbourg, Strasbourg, France
- UOC Ginecologia Oncologica, Dipartimento di Scienze per la salute della Donna e del Bambino e di Sanità Pubblica, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Roma, Italy
| | - Barbara Seeliger
- Institute of Image-Guided Surgery, IHU Strasbourg, Strasbourg, France
- Department of Digestive and Endocrine Surgery, The University Hospitals of Strasbourg, Strasbourg, France
| | - Chérif Akladios
- Department of Gynecology, Hôpitaux universitaires de Strasbourg, Strasbourg, France
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Zhao G, Tang W, Yang C, Liu X, Huang J. The Prognostic Value of Advanced Lung Cancer Inflammation Index in Elderly Patients with Acute Coronary Syndrome Undergoing Percutaneous Coronary Intervention. Int Heart J 2024; 65:621-629. [PMID: 39010222 DOI: 10.1536/ihj.24-046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 07/17/2024]
Abstract
This study aimed to investigate the predictive value of advanced lung cancer inflammation index (ALI) for major adverse cardiovascular events (MACEs) in elderly patients with acute coronary syndrome (ACS).A total of 586 ACS patients undergoing percutaneous coronary intervention (PCI) over 65 years old between January 2017 and December 2018 were retrospectively collected. The patients were divided into two groups by the optimal cutoff value of ALI. Spearman rank correlation coefficient was used to evaluate the correlation between ALI and the Global Registry of Acute Coronary Events (GRACE). Time-dependent receiver operating characteristic (ROC) curves, Cox survival analysis, and Kaplan Meier curves were used to assess the predictive value of ALI for MACEs.Spearman's nonparametric test revealed a moderate correlation between ALI and the GRACE (r: -0.417, P < 0.001). Time-dependent ROC curves showed that the area under the curve for ALI was 0.751 (95% CI, 0.699-0.798) in predicting MACEs, higher than Geriatric Nutritional Risk Index (0.531, 95% CI 0.435-0.627) and Prognostic Nutritional Index (0.590, 95% CI 0.505-0.676), and for combined diagnostic models (ALI + GRACE) was 0.913, (95% CI 0.875 - 0.942, P < 0.001). Multivariate Cox analysis demonstrated that ALI (HR: 0.974, 95% CI: 0.952-0.996, P = 0.017) was an independent risk factor for MACEs. Kaplan Meier survival analysis showed that the cumulative incidence of MACEs was significantly higher in elderly ACS patients with lower ALI (log-rank test, P < 0.001).ALI could be a nutrition-inflammation indicator with independent predictive value for long-term MACEs of elderly ACS patients after PCI.
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Affiliation(s)
- Guoying Zhao
- The Fourth School of Clinical Medicine, Zhejiang Chinese Medical University
| | - Wenbin Tang
- The Fourth School of Clinical Medicine, Zhejiang Chinese Medical University
| | - Chao Yang
- The Fourth School of Clinical Medicine, Zhejiang Chinese Medical University
| | - Xiao Liu
- The Fourth School of Clinical Medicine, Zhejiang Chinese Medical University
| | - Jinyu Huang
- Department of Cardiology, Hangzhou First People's Hospital
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3
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Su Y, Sun J, Zhou Y, Sun W. The Relationship of Waist Circumference with the Morbidity of Cardiovascular Diseases and All-Cause Mortality in Metabolically Healthy Individuals: A Population-Based Cohort Study. Rev Cardiovasc Med 2024; 25:212. [PMID: 39076338 PMCID: PMC11270058 DOI: 10.31083/j.rcm2506212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2023] [Revised: 01/16/2024] [Accepted: 01/24/2024] [Indexed: 07/31/2024] Open
Abstract
Background This study explores the relationship between waist circumference and morbidity of cardiovascular diseases (CVD) and all-cause mortality in metabolically healthy individuals. Methods A cohort of 5775 metabolically healthy participants from the 2001-2014 US National Health and Nutrition Examination Survey and National Death Index database was tracked over a median period of 81 months. These participants were divided into quartiles (Q1, Q2, Q3, Q4) based on increasing waist circumference. To compensate for missing covariates, multivariate multiple imputation methods were used. Adjusted logistic regression models were employed to examine the correlation between waist circumference and cardiovascular disease prevalence. Furthermore, Kaplan-Meier curves and multivariable Cox regression analysis were utilized to evaluate the association between waist circumference and all-cause mortality, both qualitatively and quantitatively. Results The adjusted logistic regression model indicated that a 10 cm increase in waist circumference was associated with a 1.45 times higher prevalence of CVD. As a categorical variable, there was a significant upward trend in CVD incidence across quartiles of waist circumference. The adjusted odds ratios (95% confidence intervals) were 2.41 (1.13-5.53) for Q2, 2.65 (1.18-6.39) for Q3, and 2.53 (0.9-7.44) for Q4, compared to Q1. Notably, individuals with high waist circumference showed significantly poorer survival compared to those with low waist circumference (p = 0.008). The Cox regression analysis revealed that each 10 cm increase in waist circumference contributed to an ~8% increase in all-cause mortality. Conclusions This study underscores a positive correlation between waist circumference and both CVD morbidity and all-cause mortality in metabolically healthy individuals. The findings highlight the significance of routinely monitoring waist circumference for effective CVD risk management, regardless of metabolic health status.
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Affiliation(s)
- Yue Su
- Department of Cardiology, The First Affiliated Hospital of Nanjing Medical University, 210029 Nanjing, Jiangsu, China
| | - Jinyu Sun
- Department of Cardiology, The First Affiliated Hospital of Nanjing Medical University, 210029 Nanjing, Jiangsu, China
| | - Ying Zhou
- Department of Cardiology, The First Affiliated Hospital of Nanjing Medical University, 210029 Nanjing, Jiangsu, China
| | - Wei Sun
- Department of Cardiology, The First Affiliated Hospital of Nanjing Medical University, 210029 Nanjing, Jiangsu, China
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Elkattawy O, Sames A, Kunamneni S, Sutariya R, Ismail M, Mohamed O, Lee TJ, Javed J, Elkattawy S, Hossain A, Shamoon F. Pulmonary Embolism in Patients Admitted With Takotsubo Cardiomyopathy: Prevalence and Associated In-Hospital Adverse Events. Cureus 2024; 16:e59268. [PMID: 38813344 PMCID: PMC11135138 DOI: 10.7759/cureus.59268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/28/2024] [Indexed: 05/31/2024] Open
Abstract
Introduction Takotsubo cardiomyopathy (TCM) is a poorly understood condition typically characterized by abnormal left ventricular wall motion without causative coronary artery disease and typically presents in post-menopausal women after the experience of a physical or emotional stressor. The pathophysiology of TCM is complex and multifactorial, resulting in complications with varied severity; one of the most concerning complications is thromboembolism, specifically, pulmonary embolism (PE), which is understudied in its relation to TCM. The purpose of this study was to characterize and evaluate the real-world prevalence and outcomes of PE in TCM. Methods Data were derived from the National Inpatient Sample database from January 2016 to December 2019. The primary outcomes assessed were baseline and hospital admission characteristics and comorbidities for patients with TCM with and without PE. Outcomes for TCM patients with PE and predictors of mortality in TCM were also analyzed. Results PE developed in 788 of 40,120 patients with TCM (1.96%). After multivariate adjustment, PE was found to be independently associated with intracardiac thrombus (adjusted odds ratio (aOR) 2.067; 95% confidence interval (CI): 1.198-3.566; p = 0.009) and right heart catheterization (RHC) (aOR: 1.971; 95% CI: 1.160-3.350; p = 0.012). Mortality in patients with TCM was associated with, among other factors, age in years at admission (aOR: 1.104; 95% CI: 1.010-1.017; p = 0.001), African American race (aOR: 1.191; 95% CI: 1.020-1.391; p = 0.027), Asian or Pacific Islander race (aOR: 1.637; 95% CI: 1.283-2.090; p = 0.001), coagulopathy (aOR: 3.393; 95% CI: 2.889-2.986; p = 0.001), liver disease (aOR: 1.446; 95% CI: 1.147-1.824; p = 0.002), atrial fibrillation (aOR: 1.460; 95% CI: 1.320-1.615; p = 0.001), and pulmonary embolism (aOR: 2.217; 95% CI: 1.781-2.760; p = 0.001). Conclusion In a large cohort of patients admitted with TCM, we found the prevalence of PE to be 1.96%. PE, along with comorbidities such as coagulopathy and atrial fibrillation, was found to be a significant predictor of mortality in this patient cohort.
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Affiliation(s)
- Omar Elkattawy
- Internal Medicine, Rutgers University New Jersey Medical School, Newark, USA
| | - Antonia Sames
- Internal Medicine, Rutgers University New Jersey Medical School, Newark, USA
| | - Sruthi Kunamneni
- Internal Medicine, Rutgers University New Jersey Medical School, Newark, USA
| | - Riya Sutariya
- Internal Medicine, Rutgers University New Jersey Medical School, Newark, USA
| | - Mohamed Ismail
- Internal Medicine, Rutgers University New Jersey Medical School, Newark, USA
| | - Omar Mohamed
- Medicine, Saint Barnabas Medical Center, Livingston, USA
| | - Thomas J Lee
- Internal Medicine, Rutgers University New Jersey Medical School, Newark, USA
| | - Jahanzeb Javed
- Internal Medicine, Rutgers University New Jersey Medical School, Newark, USA
| | - Sherif Elkattawy
- Cardiology, Saint Joseph's University Medical Center, Paterson, USA
| | - Afif Hossain
- Internal Medicine, Rutgers University New Jersey Medical School, Newark, USA
| | - Fayez Shamoon
- Cardiology, Saint Joseph's University Medical Center, Paterson, USA
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Swaby A, Atallah A, Varol O, Cristea A, Quail DF. Lifestyle and host determinants of antitumor immunity and cancer health disparities. Trends Cancer 2023; 9:1019-1040. [PMID: 37718223 DOI: 10.1016/j.trecan.2023.08.007] [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: 07/05/2023] [Revised: 08/14/2023] [Accepted: 08/15/2023] [Indexed: 09/19/2023]
Abstract
Lifestyle factors exert profound effects on host physiology and immunology. Disparities in cancer outcomes persist as a complex and multifaceted challenge, necessitating a comprehensive understanding of the interplay between host environment and antitumor immune responses. Determinants of health - such as obesity, diet, exercise, stress, or sleep disruption - have the potential for modification, yet some exert long-lasting effects and may challenge the notion of complete reversibility. Herein we review intersectional considerations of lifestyle immunity and the impact on tumor immunology and disparities in cancer outcomes, with a focus on obesity.
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Affiliation(s)
- Anikka Swaby
- Goodman Cancer Research Institute, Montreal, QC, Canada; Department of Experimental Medicine, McGill University, Montreal, QC, Canada
| | - Aline Atallah
- Goodman Cancer Research Institute, Montreal, QC, Canada; Department of Experimental Medicine, McGill University, Montreal, QC, Canada
| | - Ozgun Varol
- Goodman Cancer Research Institute, Montreal, QC, Canada; Department of Experimental Medicine, McGill University, Montreal, QC, Canada
| | - Alyssa Cristea
- Goodman Cancer Research Institute, Montreal, QC, Canada; Department of Experimental Medicine, McGill University, Montreal, QC, Canada
| | - Daniela F Quail
- Goodman Cancer Research Institute, Montreal, QC, Canada; Department of Experimental Medicine, McGill University, Montreal, QC, Canada; Department of Physiology, McGill University, Montreal, QC, Canada.
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Yen YN, Garrido-Cumbrera M, Sun YS, Chen CH, Lai CC, Tsai HC, Chen WS, Liao HT, Tsao YP, Tsai CY, Chou CT. The Taiwanese Map of Axial Spondyloarthritis: Living with the Condition. MEDICINA (KAUNAS, LITHUANIA) 2023; 59:1962. [PMID: 38004011 PMCID: PMC10673106 DOI: 10.3390/medicina59111962] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 10/14/2023] [Accepted: 10/24/2023] [Indexed: 11/26/2023]
Abstract
Background and Objective: The International Map of Axial Spondyloarthritis (IMAS) explores the physical, psychological, and social experiences of patients with axial spondyloarthritis (axSpA). This initiative is now being expanded to Taiwan as the Taiwanese Map of Axial Spondyloarthritis (TMAS). We aim to provide rheumatologists with insights into the perspectives of Taiwanese patients, enabling physicians to better understand the unmet needs of these patients and optimize their management. Materials and Methods: The TMAS is a cross-sectional study gathering data through an online survey of axSpA patients, promoted by the Ankylosing Spondylitis Caring Society of R.O.C. (ASCARES), conducted from July 2017 to March 2018 by Ipsos, and analyzed by the Health & Territory Research (HTR) group of the University of Seville. The questionnaire includes 99 questions that cover domains such as patient profile, diagnosis, habits/lifestyle, employment status, physical/psychological health status, social support, use of healthcare services, and treatments. Results: A total of 112 axSpA patients were included in this survey. The mean age was 38.6 years and 75.0% were male. The average diagnostic delay was 3 years, and 19.6% reported extra-articular manifestations. Out of the 49 respondents who reported HLA-B27 information, 35 were HLA-B27-positive. The disease burden was high, with a mean BASDAI score of 4.9 and 75.9% having a mild to moderate degree of spinal stiffness. Furthermore, they were socially and psychologically burdened, with 88.4% experiencing work-related issues and 25.9% suffering from anxiety. Conclusions: The TMAS sheds light on the overall perspective of axSpA patients in Taiwan. The TMAS shows shorter diagnostic delay compared to patients from the EMAS. However, high disease activity and significant psychological distress still trouble the patients, causing functional impairments and even leading to career failures. Understanding the perspective of axSpA patients can help rheumatologists adjust treatment strategies to their unmet needs and improve their disease outcomes.
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Affiliation(s)
- Yi-Ning Yen
- Division of Allergy, Immunology and Rheumatology, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City 231, Taiwan; (Y.-N.Y.); (C.-H.C.)
| | - Marco Garrido-Cumbrera
- Health & Territory Research (HTR), Universidad de Sevilla, 41004 Sevilla, Spain;
- Axial Spondyloarthritis International Federation (ASIF), London WC1N 3AX, UK
| | - Yi-Syuan Sun
- Division of Allergy, Immunology & Rheumatology, Taipei Veterans General Hospital, National Yang-Ming Chiao-Tung University, Taipei 112, Taiwan; (Y.-S.S.); (C.-C.L.); (H.-C.T.); (W.-S.C.); (H.-T.L.); (C.-T.C.)
| | - Chen-Hung Chen
- Division of Allergy, Immunology and Rheumatology, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City 231, Taiwan; (Y.-N.Y.); (C.-H.C.)
| | - Chien-Chih Lai
- Division of Allergy, Immunology & Rheumatology, Taipei Veterans General Hospital, National Yang-Ming Chiao-Tung University, Taipei 112, Taiwan; (Y.-S.S.); (C.-C.L.); (H.-C.T.); (W.-S.C.); (H.-T.L.); (C.-T.C.)
| | - Hung-Cheng Tsai
- Division of Allergy, Immunology & Rheumatology, Taipei Veterans General Hospital, National Yang-Ming Chiao-Tung University, Taipei 112, Taiwan; (Y.-S.S.); (C.-C.L.); (H.-C.T.); (W.-S.C.); (H.-T.L.); (C.-T.C.)
| | - Wei-Sheng Chen
- Division of Allergy, Immunology & Rheumatology, Taipei Veterans General Hospital, National Yang-Ming Chiao-Tung University, Taipei 112, Taiwan; (Y.-S.S.); (C.-C.L.); (H.-C.T.); (W.-S.C.); (H.-T.L.); (C.-T.C.)
| | - Hsien-Tzung Liao
- Division of Allergy, Immunology & Rheumatology, Taipei Veterans General Hospital, National Yang-Ming Chiao-Tung University, Taipei 112, Taiwan; (Y.-S.S.); (C.-C.L.); (H.-C.T.); (W.-S.C.); (H.-T.L.); (C.-T.C.)
| | - Yen-Po Tsao
- Division of Holistic and Multidisciplinary Medicine, Taipei Veterans General Hospital, National Yang-Ming Chiao-Tung University, Taipei 112, Taiwan;
| | | | - Chang-Youh Tsai
- Division of Immunology and Rheumatology, Fu Jen Catholic University Hospital, College of Medicine, Fu Jen Catholic University, New Taipei City 243, Taiwan
| | - Chung-Tei Chou
- Division of Allergy, Immunology & Rheumatology, Taipei Veterans General Hospital, National Yang-Ming Chiao-Tung University, Taipei 112, Taiwan; (Y.-S.S.); (C.-C.L.); (H.-C.T.); (W.-S.C.); (H.-T.L.); (C.-T.C.)
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Hahn AW, Venkatesh N, Msaouel P, McQuade JL. The Influence of Obesity on Outcomes with Immune Checkpoint Blockade: Clinical Evidence and Potential Biological Mechanisms. Cells 2023; 12:2551. [PMID: 37947629 PMCID: PMC10649394 DOI: 10.3390/cells12212551] [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: 09/15/2023] [Revised: 10/23/2023] [Accepted: 10/27/2023] [Indexed: 11/12/2023] Open
Abstract
Immune checkpoint blockade (ICB) is a mainstay of treatment for advanced cancer, yet tumor response and host toxicity are heterogenous in those patients who receive ICB. There is growing interest in understanding how host factors interact with tumor intrinsic properties and the tumor microenvironment to influence the therapeutic index with ICB. Obesity, defined by body mass index, is a host factor associated with improved outcomes in select cancers when treated with ICB. While the biological mechanism for this obesity paradox is not fully understood, pre-clinical and translational studies suggest obesity may potentially impact tumor metabolism, inflammation, and angiogenesis. Herein, we summarize clinical studies that support an obesity paradox with ICB, explore potential biological mechanisms that may account for the obesity paradox, and address methodological challenges to consider when studying obesity and treatment outcomes.
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Affiliation(s)
- Andrew W. Hahn
- Department of Genitourinary Medical Oncology, Division of Cancer Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA;
| | - Neha Venkatesh
- Department of Internal Medicine, Baylor College of Medicine, Houston, TX 77030, USA
| | - Pavlos Msaouel
- Department of Genitourinary Medical Oncology, Division of Cancer Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA;
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
- David H. Koch Center for Applied Research of Genitourinary Cancers, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Jennifer L. McQuade
- Department of Melanoma Medical Oncology, Division of Cancer Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
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Kumar R, Shaikh AH, Ahmed R, Siddiqui MN, Rahooja K, Chachar K, Khan MQ, Samad M, Urooj A, Naseer AB, Sial JA, Saghir T, Khan S, Qamar N. Unfolding the reality of the smoking paradox in a South Asian cohort of patients presenting with ST-elevation acute coronary syndrome undergoing primary percutaneous coronary intervention. SAGE Open Med 2023; 11:20503121231206932. [PMID: 37900968 PMCID: PMC10612446 DOI: 10.1177/20503121231206932] [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: 05/27/2023] [Accepted: 09/25/2023] [Indexed: 10/31/2023] Open
Abstract
Objectives Smoking is a potent risk factor for coronary artery disease, but there is controversy about its protective nature in terms of prognosis in ST-elevation acute coronary syndrome patients undergoing primary percutaneous coronary intervention. So, the main objective of this study is to unfold this controversy in a South Asian population in terms of clinical angiographic parameters and its in-hospital outcomes. Methods In this study, we included 1756 consecutive patients diagnosed with ST-elevation acute coronary syndrome undergoing primary percutaneous coronary intervention. Patients were classified into smokers and non-smokers, and the in-hospital mortality rate was compared. Multivariable logistic regression analysis was performed to evaluate the paradoxical role of smoking. Results Smokers were younger (53.78 ± 11.16 years vs 56.43 ± 11.17 years; p < 0.001) and more frequently men (98.7% vs 69.9%; p < 0.001) and had less diabetes (19.6% vs 44.8%; p < 0.001) and hypertension (38.5% vs 64.9%; p < 0.001). Smokers presented less frequently in Killip III (5.6% vs 8.1%; p < 0.001) and Killip IV (2.5% vs 4.8%; p < 0.001). Smokers mostly had single vessel disease (41.7% vs 34.4%; p = 0.013), whereas non-smokers had the multi-vessel disease and frequently presented with total occlusion of the culprit vessel (64.6% vs 58.8%; p = 0.040). Smokers have significantly lesser mortality (1.8% vs 4.3%; p = 0.009) compared to non-smokers with an odds ratio of 0.41 (95% confidence interval (CI): 0.21-0.82, p = 0.011); however, adjusted odds ratio on multivariable analysis was 0.67 (95% CI: 0.31-1.41, p = 0.290). Conclusions The paradoxical protective role of smoking is the confounding effect of mainly younger age, less coronary artery disease burden, lower prevalence of diabetes and hypertension, and lower Killip III/IV at presentation.
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Affiliation(s)
- Rajesh Kumar
- National Institute of Cardiovascular Diseases, Karachi, Pakistan
| | | | - Rameez Ahmed
- National Institute of Cardiovascular Diseases, Karachi, Pakistan
| | | | - Kubbra Rahooja
- National Institute of Cardiovascular Diseases, Karachi, Pakistan
| | - Kalsoom Chachar
- National Institute of Cardiovascular Diseases, Karachi, Pakistan
| | | | - Maryam Samad
- National Institute of Cardiovascular Diseases, Karachi, Pakistan
| | - Abiha Urooj
- National Institute of Cardiovascular Diseases, Karachi, Pakistan
| | - Ali Bin Naseer
- National Institute of Cardiovascular Diseases, Karachi, Pakistan
| | | | - Tahir Saghir
- National Institute of Cardiovascular Diseases, Karachi, Pakistan
| | - Sohail Khan
- National Institute of Cardiovascular Diseases, Karachi, Pakistan
| | - Nadeem Qamar
- National Institute of Cardiovascular Diseases, Karachi, Pakistan
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9
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Venkatesh N, Martini A, McQuade JL, Msaouel P, Hahn AW. Obesity and renal cell carcinoma: Biological mechanisms and perspectives. Semin Cancer Biol 2023; 94:21-33. [PMID: 37286114 PMCID: PMC10526958 DOI: 10.1016/j.semcancer.2023.06.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 05/31/2023] [Accepted: 06/02/2023] [Indexed: 06/09/2023]
Abstract
Obesity, defined by body mass index (BMI), is an established risk factor for specific renal cell carcinoma (RCC) subtypes such as clear cell RCC, the most common RCC histology. Many studies have identified an association between obesity and improved survival after diagnosis of RCC, a potential "obesity paradox." Clinically, there is uncertainty whether improved outcomes observed after diagnosis are driven by stage, type of treatment received, or artifacts of longitudinal changes in weight and body composition. The biological mechanisms underlying obesity's influence on RCC are not fully established, but multiomic and mechanistic studies suggest an impact on tumor metabolism, particularly fatty acid metabolism, angiogenesis, and peritumoral inflammation, which are known to be key biological hallmarks of clear cell RCC. Conversely, high-intensity exercise associated with increased muscle mass may be a risk factor for renal medullary carcinoma, a rare RCC subtype that predominantly occurs in individuals with sickle hemoglobinopathies. Herein, we highlight methodologic challenges associated with studying the influence of obesity on RCC and review the clinical evidence and potential underlying mechanisms associating RCC with BMI and body composition.
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Affiliation(s)
- Neha Venkatesh
- Department of Internal Medicine, Baylor College of Medicine, Houston, TX, USA
| | - Alberto Martini
- Department of Urology, Division of Surgery, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Jennifer L McQuade
- Department of Melanoma Medical Oncology, Division of Cancer Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Pavlos Msaouel
- Department of Genitourinary Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA; Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA; David H. Koch Center for Applied Research of Genitourinary Cancers, The University of Texas, MD Anderson Cancer Center, Houston, TX, USA.
| | - Andrew W Hahn
- Department of Genitourinary Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.
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Gjurašin B, Jeličić M, Kutleša M, Papić N. The Impact of Nonalcoholic Fatty Liver Disease on Severe Community-Acquired Pneumonia Outcomes. LIFE (BASEL, SWITZERLAND) 2022; 13:life13010036. [PMID: 36675985 PMCID: PMC9866388 DOI: 10.3390/life13010036] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 12/09/2022] [Accepted: 12/20/2022] [Indexed: 12/28/2022]
Abstract
Community-acquired pneumonia (CAP) is one of the leading causes of morbidity and mortality, while nonalcoholic fatty liver disease (NAFLD) is the most common cause of chronic liver disease. NAFLD is associated with systemic changes in immune response, possibly linked to CAP severity. However, the impact of NAFLD on CAP outcomes has not been determined. The aim of this study was to evaluate clinical course, complications and outcomes of severe CAP requiring ICU treatment in patients with NAFLD in the pre-COVID-19 era. A retrospective cohort study included 138 consecutively hospitalized adult patients with severe CAP admitted to the ICU during a 4-year period: 80 patients with NAFLD and 58 controls. Patients with NAFLD more frequently presented with ARDS (68.7% vs. 43.1%), and required invasive mechanical ventilation (86.2% vs. 63.8%), respiratory ECMO (50% vs. 24.1%), and continuous renal replacement therapy (62.5% vs. 29.3%). Mortality was significantly higher in the NAFLD group (50% vs. 20.7%), and the time from hospital admission to death was significantly shorter. In survival analysis, NAFLD (HR 2.21, 95%CI 1.03-5.06) was associated with mortality independently of other components of metabolic syndrome. In conclusion, our study identified NAFLD as an independent predictor of mortality in patients with severe CAP.
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Affiliation(s)
- Branimir Gjurašin
- University Hospital for Infectious Diseases Zagreb, 10000 Zagreb, Croatia
| | - Mia Jeličić
- University Hospital for Infectious Diseases Zagreb, 10000 Zagreb, Croatia
| | - Marko Kutleša
- University Hospital for Infectious Diseases Zagreb, 10000 Zagreb, Croatia
- School of Medicine, University of Zagreb, 10000 Zagreb, Croatia
| | - Neven Papić
- University Hospital for Infectious Diseases Zagreb, 10000 Zagreb, Croatia
- School of Medicine, University of Zagreb, 10000 Zagreb, Croatia
- Correspondence:
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Orsi E, Solini A, Penno G, Bonora E, Fondelli C, Trevisan R, Vedovato M, Cavalot F, Lamacchia O, Haxhi J, Nicolucci A, Pugliese G. Body mass index versus surrogate measures of central adiposity as independent predictors of mortality in type 2 diabetes. Cardiovasc Diabetol 2022; 21:266. [PMID: 36461034 PMCID: PMC9716975 DOI: 10.1186/s12933-022-01706-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Accepted: 11/22/2022] [Indexed: 12/05/2022] Open
Abstract
BACKGROUND An "obesity paradox" for mortality has been shown in chronic disorders such as diabetes, and attributed to methodological bias, including the use of body mass index (BMI) for obesity definition. This analysis investigated the independent association of BMI versus surrogate measures of central adiposity with all-cause mortality in individuals with type 2 diabetes. METHODS The Renal Insufficiency And Cardiovascular Events Italian Multicentre Study is a prospective cohort study that enrolled 15,773 patients in 19 Italian centres in 2006-2008. Exposures were BMI and the surrogate measures of central adiposity waist circumference (WC), waist-to-height ratio (WHtR), and A Body Shape Index (ABSI). Vital status was retrieved on 31 October 2015 for 15,656 patients (99.3%), RESULTS: Age- and sex-adjusted hazard ratios and 95% confidence intervals were significantly higher in BMI-based underweight (1.729 [1.193-2.505), P = 0.004), moderately obese (1.214 [1.058-1.392), P = 0.006) and severely obese (1.703 [1.402-2.068), P < 0.0001), lower in overweight (0.842 [0.775-0.915), P < 0.0001) and similar in mildly obese (0.950 [0.864-1.045), P = 0.292), compared to normal-weight individuals. When further adjusting for smoking, physical activity (PA), and comorbidities, risk was lower also in mildly obese versus normal-weight patients. The BMI-mortality relationship did not change after sequentially excluding ever smokers, individuals with comorbidities, and those died within two years from enrollment and when analyzing separately participants below and above the median age. Conversely, a paradox relationship was observed among inactive/moderately inactive, but not moderately/highly active patients. Mortality risk adjusted for age, gender, smoking, PA and comorbidities was significantly higher in the highest tertile of WC (1.279 [1.089-1.501], P = 0.003), WHtR (1.372 [1.165-1.615], P < 0.0001), and ABSI (1.263 [1.067-1.495], P = 0.007) versus the lowest tertile. However, risk was lower in the intermediate versus lowest tertile for WC (0.823 [0.693-0.979], P = 0.028), similar for WHtR, and higher, though not significantly, for ABSI. CONCLUSIONS An "overweight paradox" remained after controlling for age, smoking, and comorbidities, arguing against a collider bias or reverse causation. However, it could be partly explained by confounding from PA level, possibly through its impact on lean mass and cardiorespiratory fitness. No obesity paradox was observed with WHtR and especially ABSI, which predicted mortality risk associated with central adiposity better than WC. Trial registration ClinicalTrials.gov, NCT00715481, 15 July, 2008.
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Affiliation(s)
- Emanuela Orsi
- grid.414818.00000 0004 1757 8749Diabetes Unit, Foundation IRCCS Cà Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Anna Solini
- grid.5395.a0000 0004 1757 3729Department of Surgical, Medical, Molecular and Critical Area Pathology, University of Pisa, Pisa, Italy
| | - Giuseppe Penno
- grid.5395.a0000 0004 1757 3729Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Enzo Bonora
- grid.411475.20000 0004 1756 948XDivision of Endocrinology, Diabetes and Metabolism, University and Hospital Trust of Verona, Verona, Italy
| | - Cecilia Fondelli
- grid.9024.f0000 0004 1757 4641Diabetes Unit, University of Siena, Siena, Italy
| | - Roberto Trevisan
- grid.460094.f0000 0004 1757 8431Endocrinology and Diabetes Unit, Azienda Ospedaliera Papa Giovanni XXIII, Bergamo, Italy
| | - Monica Vedovato
- grid.5608.b0000 0004 1757 3470Department of Clinical and Experimental Medicine, University of Padua, Padua, Italy
| | - Franco Cavalot
- grid.7605.40000 0001 2336 6580Department of Clinical and Biological Sciences, University of Turin, Orbassano, Italy
| | - Olga Lamacchia
- grid.10796.390000000121049995Department of Medical Sciences, University of Foggia, Foggia, Italy
| | - Jonida Haxhi
- grid.7841.aDepartment of Clinical and Molecular Medicine, “La Sapienza” University, Via Di Grottarossa, 1035-1039, 00189 Rome, Italy
| | - Antonio Nicolucci
- grid.512242.2Center for Outcomes Research and Clinical Epidemiology (CORESEARCH), Pescara, Italy
| | - Giuseppe Pugliese
- grid.7841.aDepartment of Clinical and Molecular Medicine, “La Sapienza” University, Via Di Grottarossa, 1035-1039, 00189 Rome, Italy
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Associations between Body Mass Index, Waist Circumference, and Myocardial Infarction in Older Adults Aged over 75 Years: A Population-Based Cohort Study. MEDICINA (KAUNAS, LITHUANIA) 2022; 58:medicina58121768. [PMID: 36556970 PMCID: PMC9783624 DOI: 10.3390/medicina58121768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 11/17/2022] [Accepted: 11/26/2022] [Indexed: 12/03/2022]
Abstract
Background and Objectives: Body mass index (BMI) is widely used as a standard screening method for obesity and an indicator of related diseases. However, its inability to distinguish between lean body mass and body fat limits its utility. This limitation may be more prominent in older populations, wherein age-related sarcopenia and increased visceral fat due to the redistribution of adipose tissue may preclude a precise estimation of obesity. Many studies suggest that waist circumference (WC) is more strongly related to obesity-related diseases. There are also different opinions on whether the obesity paradox is real or a result of confusing interpretations. This study seeks to determine the association between myocardial infarction (MI), BMI, and WC in older adults and to determine if BMI and WC can reliably predict the risk of cardiovascular disease. Materials and Methods: We conducted a cohort study of older Korean adults aged over 75 years registered in the National Health Insurance System Senior database. Results: The results from the analysis using model 5, which was adjusted for each study variable, showed that the lower the BMI, the higher the hazard ratio (HR) of MI and vice versa. On the other hand, groups with lower than normal WC showed lower HR; even if it was higher, the difference was not statistically significant. Those with abdominal obesity tended to have an increased HR of MI. Conclusions: This study found that HR for MI has a negative relationship with BMI, whereas it has a positive relationship with WC. Furthermore, WC is a more appropriate indicator for predicting the risk of MI in the older population.
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Ihyauddin Z, Marthias T, Anindya K, Ng N, Dewi FST, Hulse ESG, Aji RP, Putri DAD, Lee JT. The relative impact of underweight, overweight, smoking, and physical inactivity on health and associated costs in Indonesia: propensity score matching of a national sample. BMC Health Serv Res 2022; 22:1170. [PMID: 36115979 PMCID: PMC9482737 DOI: 10.1186/s12913-022-08546-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Accepted: 07/21/2022] [Indexed: 12/02/2022] Open
Abstract
Background Indonesia is in the middle of a rapid epidemiological transition with an ageing population and increasing exposure to risk factors for chronic conditions. This study examines the relative impacts of obesity, tobacco consumption, and physical inactivity, on non-communicable diseases multimorbidity, health service use, catastrophic health expenditure (CHE), and loss in employment productivity in Indonesia. Methods Secondary analyses were conducted of cross-sectional data from adults aged ≥ 40 years (n = 12,081) in the Indonesian Family Life Survey 2014/2015. We used propensity score matching to assess the associations between behavioural risk factors and health service use, CHE, employment productivity, and multimorbidity. Results Being obese, overweight and a former tobacco user was associated with a higher number of chronic conditions and multimorbidity (p < 0.05). Being a former tobacco user contributed to a higher number of outpatient and inpatient visits as well as CHE incidences and work absenteeism. Physical inactivity relatively increased the number of outpatient visits (30% increase, p < 0.05) and work absenteeism (21% increase, P < 0.06). Although being underweight was associated with an increased outpatient care utilisation (23% increase, p < 0.05), being overweight was negatively associated with CHE incidences (50% decrease, p < 0.05). Conclusion Combined together, obesity, overweight, physical inactivity and tobacco use contributed to an increased number of NCDs as well as medical costs and productivity loss in Indonesia. Interventions addressing physical and behavioural risk factors are likely to have substantial benefits for individuals and the wider society in Indonesia. Supplementary Information The online version contains supplementary material available at 10.1186/s12913-022-08546-6.
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Yu W, Gao C, Zhao X, Li C, Fan B, Lv J, Wei M, He L, Su C, Zhang T. Four-way decomposition of effect of cigarette smoking and body mass index on serum lipid profiles. PLoS One 2022; 17:e0270486. [PMID: 35980977 PMCID: PMC9387787 DOI: 10.1371/journal.pone.0270486] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Accepted: 06/12/2022] [Indexed: 12/02/2022] Open
Abstract
Objective Smoking and obesity are established risk factors of dyslipidemia, however, the interplay between them has not been well studied. This study aims to explore the joint effect of smoking and body mass index (BMI) on serum lipid profiles. Methods The study consisted of 9846 Chinese adults (mean age = 49.9 years, 47.6% males, 31.2% ever smokers), based on the China Health and Nutrition Survey. Serum lipid profiles included total cholesterol (TC), triglyceride (TG), low-density lipoprotein cholesterol (LDL-C), high-density lipoprotein cholesterol (HDL-C), apolipoprotein A (APO-A), and apolipoprotein B (Apo-B). The joint effect of smoking and BMI on serum lipids were examined by the four-way decomposition analysis and multivariate linear regression models. Results The four-way decomposition showed that the interplay between smoking and BMI was complicated. There was only indirect effect (the mediated effect) between smoking and BMI on TC, LDL-C and APO-B. The pure indirect effect was -0.023 for TC, -0.018 for LDL-C, and -0.009 for APO-B. For TG, HDL-C and APO-A, the interaction effect was dominant. The reference interaction (the interactive effect when the mediator is left to what it would be in the absence of exposure) was 0.474 (P < 0.001) for TG, -0.245 (P = 0.002) for HDL-C, and -0.222 (P < 0.001) for APO-A, respectively. The effect of BMI on TG, HDL-C and APO-A were significantly higher in smokers than in nonsmokers (TG: 0.151 in smokers versus 0.097 in nonsmokers, HDL-C: -0.037 versus -0.027, APO-A: -0.019 versus -0.009, P for difference < 0.001 for all). Conclusion These findings illustrate the joint effects of smoking and BMI on serum lipid profiles. There were significant interaction effects of smoking and BMI on TG, HDL-C and APO-A, while BMI maybe a mediator for the association of smoking with TC, LDL-C and APO-B. The effects between them were rather complex. Smoking cessation is necessary, especially for those overweight.
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Affiliation(s)
- Wenhao Yu
- Department of Biostatistics, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
- Institute for Medical Dataology, Shandong University, Jinan, China
- National Institute of Health Data Science of China, Jinan, China
| | - Chaonan Gao
- Department of Biostatistics, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
- Institute for Medical Dataology, Shandong University, Jinan, China
- National Institute of Health Data Science of China, Jinan, China
| | - Xiangjuan Zhao
- Maternal and Child Health Care of Shandong Province, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Chunxia Li
- Department of Biostatistics, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
- Institute for Medical Dataology, Shandong University, Jinan, China
- National Institute of Health Data Science of China, Jinan, China
| | - Bingbing Fan
- Department of Biostatistics, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
- Institute for Medical Dataology, Shandong University, Jinan, China
- National Institute of Health Data Science of China, Jinan, China
| | - Jiali Lv
- Department of Biostatistics, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
- Institute for Medical Dataology, Shandong University, Jinan, China
- National Institute of Health Data Science of China, Jinan, China
| | - Mengke Wei
- Department of Biostatistics, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
- Institute for Medical Dataology, Shandong University, Jinan, China
- National Institute of Health Data Science of China, Jinan, China
| | - Li He
- Department of Biostatistics, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
- Institute for Medical Dataology, Shandong University, Jinan, China
- National Institute of Health Data Science of China, Jinan, China
| | - Chang Su
- National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, Beijing, China
- * E-mail: (TZ); (CS)
| | - Tao Zhang
- Department of Biostatistics, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
- Institute for Medical Dataology, Shandong University, Jinan, China
- National Institute of Health Data Science of China, Jinan, China
- * E-mail: (TZ); (CS)
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15
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Kunutsor SK, Whitehouse MR, Blom AW. Obesity paradox in joint replacement for osteoarthritis - truth or paradox? GeroScience 2022; 44:651-659. [PMID: 34453272 PMCID: PMC8396800 DOI: 10.1007/s11357-021-00442-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Accepted: 08/12/2021] [Indexed: 10/31/2022] Open
Abstract
Obesity is associated with an increased risk of cardiovascular disease (CVD) and other adverse health outcomes. In patients with pre-existing heart failure or coronary heart disease, obese individuals have a more favourable prognosis compared to individuals who are of normal weight. This paradoxical relationship between obesity and CVD has been termed the 'obesity paradox'. This phenomenon has also been observed in patients with other cardiovascular conditions and diseases of the respiratory and renal systems. Taking into consideration the well-established relationship between osteoarthritis (OA) and CVD, emerging evidence shows that overweight and obese individuals undergoing total hip or knee replacement for OA have lower mortality risk compared with normal weight individuals, suggesting an obesity paradox. Factors proposed to explain the obesity paradox include the role of cardiorespiratory fitness ("fat but fit"), the increased amount of lean mass in obese people, additional adipose tissue serving as a metabolic reserve, biases such as reverse causation and confounding by smoking, and the co-existence of older age and specific comorbidities such as CVD. A wealth of evidence suggests that higher levels of fitness are accompanied by prolonged life expectancy across all levels of adiposity and that the increased mortality risk attributed to obesity can be attenuated with increased fitness. For patients about to have joint replacement, improving fitness levels through physical activities or exercises that are attractive and feasible, should be a priority if intentional weight loss is unlikely to be achieved.
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Affiliation(s)
- Setor K Kunutsor
- National Institute for Health Research Bristol Biomedical Research Centre, University Hospitals Bristol and Weston NHS Foundation Trust and the University of Bristol, Bristol, UK.
- Translational Health Sciences, Bristol Medical School, Musculoskeletal Research Unit, University of Bristol, Learning & Research Building (Level 1), Southmead Hospital, Bristol, BS10 5NB, UK.
| | - Michael R Whitehouse
- National Institute for Health Research Bristol Biomedical Research Centre, University Hospitals Bristol and Weston NHS Foundation Trust and the University of Bristol, Bristol, UK
- Translational Health Sciences, Bristol Medical School, Musculoskeletal Research Unit, University of Bristol, Learning & Research Building (Level 1), Southmead Hospital, Bristol, BS10 5NB, UK
| | - Ashley W Blom
- National Institute for Health Research Bristol Biomedical Research Centre, University Hospitals Bristol and Weston NHS Foundation Trust and the University of Bristol, Bristol, UK
- Translational Health Sciences, Bristol Medical School, Musculoskeletal Research Unit, University of Bristol, Learning & Research Building (Level 1), Southmead Hospital, Bristol, BS10 5NB, UK
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16
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No obesity paradox in patients with community-acquired pneumonia - secondary analysis of a randomized controlled trial. Nutr Diabetes 2022; 12:12. [PMID: 35322019 PMCID: PMC8943130 DOI: 10.1038/s41387-022-00190-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/11/2020] [Revised: 12/10/2021] [Accepted: 01/14/2022] [Indexed: 12/04/2022] Open
Abstract
Background Obesity is associated with an increased risk for several chronic conditions and mortality. However, there are data in support of beneficial outcome in acute medical conditions such as community-acquired pneumonia (CAP), termed “obesity paradox”. The aim of this study was to test the association of BMI with clinical outcomes in a large randomized clinical trial of patients hospitalized with CAP. Design and Methods In total, 773 patients hospitalized with CAP were included in this study. Patients were stratified into four groups according to their baseline BMI (underweight <18.5, normal weight 18.5–25, overweight 25–30, and obese >30 kg/m2). The primary endpoint was time to clinical stability (TTCS). Secondary endpoints included 30-day mortality, ICU admission rate, CAP complications, and duration of antibiotic treatment. Results BMI and TTCS had a U-shaped association with shortest TTCS among patients at an overweight BMI of 28 kg/m2. In patients with obesity, there was a trend towards reduced hazards to reach clinical stability when compared to patients with normal weight (HR 0.82; 95%CI, 0.67–1.02; p = 0.07). In underweight BMI group TTCS was prolonged by 1 day (HR 0.63; 95%CI, 0.45–0.89; p = 0.008). There was no difference in mortality or ICU admission rates between BMI groups (p > 0.05). While in the underweight BMI group the total duration of antibiotic treatment was prolonged by 2.5 days (95%CI, 0.88–4.20, p = 0.003), there was no difference in patients with obesity. Conclusions The overweight BMI group had shortest time to clinical stability. While underweight patients face adverse clinical outcomes, there is neither beneficial, nor adverse outcome in patients with obesity hospitalized for CAP. ClinicalTrials.gov (registration no. NCT00973154).
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Wang J, Wang C, Zeng Z, Zuo H. Impact of BMI on Long-Term Outcomes in Patients with ST-Segment Elevation Myocardial Infarction after Primary Percutaneous Coronary Intervention. Int J Clin Pract 2022; 2022:6210204. [PMID: 35685592 PMCID: PMC9159228 DOI: 10.1155/2022/6210204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 11/19/2021] [Accepted: 11/23/2021] [Indexed: 11/17/2022] Open
Abstract
AIM Obesity paradox remains a point of debate in ST-segment elevation myocardial infarction (STEMI) patients. The aim of this study was to examine the relationship between body mass index (BMI) and clinical outcomes in STEMI patients undergoing primary percutaneous coronary intervention (PPCI). METHODS Outcomes were assessed in 1429 STEMI patients undergoing PPCI between January 2009 and January 2010 in Beijing. Patients were classified into 6 groups according to age (the younger and elderly groups consisting of patients ≤65 and > 65 years old) and baseline BMI (normal weight, BMI < 24 kg/m2; overweight, 24 kg/m2 ≤BMI < 28 kg/m2; obese, BMI ≥ 28 kg/m2). The primary outcome was death, acute myocardial infarction (AMI), or revascularization. RESULTS On long-term follow-up (mean follow-up of 59 months), 13.9% of patients experienced the adverse event. Multivariate logistic regression analyses showed that low BMI was a significant predictor of the primary outcome only in the younger group. The odds ratio for overweight in comparison with normal weight was 0.741 (95% CI: 0.413-0.979; p = 0.038), the odds radio for obesity in comparison with normal-weight patients was 0.508 (95% CI: 0.344-0.750; p = 0.016) in the younger group. In the elderly group, diabetes, hypertension, triple disease, regular exercise, angiotensin-converting enzyme inhibitor (ACEI) or angiotensin II receptor blockers (ARBs) use after discharge, and bleeding complication were associated with primary outcome. CONCLUSION The obesity paradox was recognized only in the younger age group in STEMI patients undergoing PPCI.
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Affiliation(s)
- Jinwen Wang
- Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Disease, Beijing 100029, China
| | - Changhua Wang
- Department of Cardiology, Beijing An Zhen Hospital, Capital Medical University, Beijing 100029, China
| | - Zhechun Zeng
- Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Disease, Beijing 100029, China
| | - Huijuan Zuo
- Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Disease, Beijing 100029, China
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Yan J, Li X, Long W, Yuan T, Xian S. Association Between Obesity and Lower Short- and Long-Term Mortality in Coronary Care Unit Patients: A Cohort Study of the MIMIC-III Database. Front Endocrinol (Lausanne) 2022; 13:855650. [PMID: 35444615 PMCID: PMC9013888 DOI: 10.3389/fendo.2022.855650] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Accepted: 03/11/2022] [Indexed: 11/13/2022] Open
Abstract
INTRODUCTION Obesity has long been considered an independent risk factor for cardiovascular diseases (CVD), even in the COVID-19 pandemic. However, recent studies have found that a certain degree of obesity may be beneficial for patients who have already suffered from CVD, which is called the "obesity paradox". Our objective was to investigate whether the obesity paradox existed in coronary care unit (CCU) patients and the relationship between body mass index (BMI) and short- and long-term mortality. METHODS We performed a cohort analysis of 3,502 adult CCU patients from the Medical Information Mart for Intensive Care III (MIMIC-III) database. The patients were divided into four groups according to the WHO BMI categories. Both multivariable logistic regression and Cox regression were used to reveal the relation between BMI and mortality. Subgroup analyses were performed based on Simplified Acute Physiology Score (SAPS) and age. RESULTS After adjusting for confounders, obese patients had 33% and 30% lower mortality risk at 30-day and 1-year (OR 0.67, 95% CI 0.51 to 0.89; HR 0.70, 95% CI 0.59 to 0.83; respectively) compared with normal-weight patients, while the underweight group were opposite, with 141% and 81% higher in short- and long-term (OR 2.41, 95% CI 1.37 to 4.12; HR 1.81, 95% CI 1.34 to 2.46; respectively). Overweight patients did not have a significant survival advantage at 30-day (OR 0.91, 95% CI 0.70 to 1.17), but did have a 22% lower mortality risk at 1-year (HR 0.78; 95% CI 0.67 to 0.91). The results were consistent after being stratified by SAPS and age. CONCLUSION Our study supports that obesity improved survival at both 30-day and 1-year after CCU admission, and the obesity paradox existed in CCU patients.
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Affiliation(s)
- Junlue Yan
- The First Clinical School, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Xinyuan Li
- Department of Community Health, Shenzhen Traditional Chinese Medicine Hospital, Shenzhen, China
| | - Wenjie Long
- Geriatrics Department, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
- Lingnan Medical Research Center, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Tianhui Yuan
- Geriatrics Department, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
- Lingnan Medical Research Center, Guangzhou University of Chinese Medicine, Guangzhou, China
- *Correspondence: Shaoxiang Xian, ; Tianhui Yuan,
| | - Shaoxiang Xian
- Lingnan Medical Research Center, Guangzhou University of Chinese Medicine, Guangzhou, China
- Cardiovascular Department, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
- *Correspondence: Shaoxiang Xian, ; Tianhui Yuan,
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Artificial Intelligence for Medical Decisions. Artif Intell Med 2022. [DOI: 10.1007/978-3-030-64573-1_28] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Raffield LM, Howard AG, Graff M, Lin D, Cheng S, Demerath E, Ndumele C, Palta P, Rebholz CM, Seidelmann S, Yu B, Gordon‐Larsen P, North KE, Avery CL. Obesity Duration, Severity, and Distribution Trajectories and Cardiovascular Disease Risk in the Atherosclerosis Risk in Communities Study. J Am Heart Assoc 2021; 10:e019946. [PMID: 34889111 PMCID: PMC9075238 DOI: 10.1161/jaha.121.019946] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/06/2021] [Accepted: 10/22/2021] [Indexed: 12/14/2022]
Abstract
Background Research examining the role of obesity in cardiovascular disease (CVD) often fails to adequately consider heterogeneity in obesity severity, distribution, and duration. Methods and Results We here use multivariate latent class mixed models in the biracial Atherosclerosis Risk in Communities study (N=14 514; mean age=54 years; 55% female) to associate obesity subclasses (derived from body mass index, waist circumference, self-reported weight at age 25, tricep skinfold, and calf circumference across up to four triennial visits) with total mortality, incident CVD, and CVD risk factors. We identified four obesity subclasses, summarized by their body mass index and waist circumference slope as decline (4.1%), stable/slow decline (67.8%), moderate increase (24.6%), and rapid increase (3.6%) subclasses. Compared with participants in the stable/slow decline subclass, the decline subclass was associated with elevated mortality (hazard ratio [HR] 1.45, 95% CI 1.31, 1.60, P<0.0001) and with heart failure (HR 1.41, 95% CI 1.22, 1.63, P<0.0001), stroke (HR 1.53, 95% CI 1.22, 1.92, P=0.0002), and coronary heart disease (HR 1.36, 95% CI 1.14, 1.63, P=0.0008), adjusting for baseline body mass index and CVD risk factor profile. The moderate increase latent class was not associated with any significant differences in CVD risk as compared to the stable/slow decline latent class and was associated with a lower overall risk of mortality (HR 0.85, 95% CI 0.80, 0.90, P<0.0001), despite higher body mass index at baseline. The rapid increase latent class was associated with a higher risk of heart failure versus the stable/slow decline latent class (HR 1.34, 95% CI 1.10, 1.62, P=0.004). Conclusions Consideration of heterogeneity and longitudinal changes in obesity measures is needed in clinical care for a more precision-oriented view of CVD risk.
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Affiliation(s)
| | - Annie Green Howard
- Department of BiostatisticsGillings School of Global Public HealthUniversity of North CarolinaChapel HillNC
| | - Misa Graff
- Department of EpidemiologyGillings School of Global Public HealthUniversity of North CarolinaChapel HillNC
| | - Dan‐Yu Lin
- Department of BiostatisticsGillings School of Global Public HealthUniversity of North CarolinaChapel HillNC
| | - Susan Cheng
- Smidt Heart InstituteCedars‐Sinai Medical CenterLos AngelesCA
| | - Ellen Demerath
- Division of Epidemiology and Community HealthSchool of Public HealthUniversity of MinnesotaMinneapolisMN
| | - Chiadi Ndumele
- Johns Hopkins Ciccarone Center for the Prevention of Heart DiseaseJohns Hopkins University School of MedicineBaltimoreMD
- Department of EpidemiologyJohns Hopkins Bloomberg School of Public HealthBaltimoreMD
| | - Priya Palta
- Departments of Medicine and EpidemiologyColumbia University Medical CenterNew YorkNY
| | - Casey M. Rebholz
- Department of EpidemiologyJohns Hopkins Bloomberg School of Public HealthBaltimoreMD
- Welch Center for Prevention, Epidemiology and Clinical ResearchJohns Hopkins UniversityBaltimoreMD
| | - Sara Seidelmann
- Cardiovascular DivisionBrigham and Women's Hospital and Harvard Medical SchoolBostonMA
| | - Bing Yu
- Department of Epidemiology, Human Genetics and Environmental SciencesSchool of Public HealthUniversity of Texas Health Science Center at HoustonTX
| | - Penny Gordon‐Larsen
- Department of NutritionGillings School of Global Public Health and School of MedicineUniversity of North CarolinaChapel HillNC
| | - Kari E. North
- Department of EpidemiologyGillings School of Global Public HealthUniversity of North CarolinaChapel HillNC
- Carolina Center of Genome SciencesUniversity of North Carolina at Chapel HillChapel HillNC
| | - Christy L. Avery
- Department of EpidemiologyGillings School of Global Public HealthUniversity of North CarolinaChapel HillNC
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21
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Su G, Saglimbene V, Wong G, Natale P, Ruospo M, Craig JC, Hegbrant J, Carrero JJ, Strippoli GFM. Healthy Lifestyle and Mortality Among Adults Receiving Hemodialysis: The DIET-HD Study. Am J Kidney Dis 2021; 79:688-698.e1. [PMID: 34547395 DOI: 10.1053/j.ajkd.2021.07.022] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Accepted: 07/28/2021] [Indexed: 01/08/2023]
Abstract
RATIONALE & OBJECTIVE A healthy lifestyle promotes cardiovascular health and reduces cardiac-related mortality in the general population but its benefits for people receiving maintenance hemodialysis are uncertain. STUDY DESIGN Prospective cohort study. SETTING & PARTICIPANTS 5,483 of 9,757 consecutive adults receiving maintenance hemodialysis (January 2014 to June 2017, median dialysis vintage: 3.6 yrs) in a multinational private dialysis network and with complete lifestyle data. EXPOSURES Based on the American Heart Association's recommendations for cardiovascular prevention, a modified healthy lifestyle score was the sum of four components addressing use of smoking tobacco, physical activity, diet, and control of systolic blood pressure. OUTCOMES Cardiovascular and all-cause mortality. ANALYTICAL APPROACH Adjusted proportional hazards (aHRs) regression analyses with country as a random effect to estimate the associations between lifestyle score (low [0-2 points] as the referent, medium [3-5], and high [6-8]) and mortality. Associations were expressed as aHRs with 95% confidence intervals (CIs). RESULTS During a median of 3.8 years (17,451 person-years in total), there were 2,163 deaths, of which 826 were related to cardiovascular disease. Compared to patients with a low lifestyle score, the aHRs (95% CIs) for all-cause mortality among those with medium and high lifestyle scores were 0.75 (0.65-0.85) and 0.64 (0.54-0.76), respectively. Compared to patients with a low lifestyle score, the aHRs (95% CIs) for cardiovascular mortality among those with medium and high lifestyle scores were 0.73 (0.59-0.91) and 0.65 (0.49-0.85), respectively. LIMITATIONS Self-reported lifestyle, data-driven approach. CONCLUSIONS A healthier lifestyle is associated with lower all-cause and cardiovascular mortality among patients receiving maintenance hemodialysis.
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Affiliation(s)
- Guobin Su
- National Clinical Research Center for Kidney Disease, State Key Laboratory of Organ Failure Research, Department of Nephrology, Nanfang Hospital, Southern Medical University, Guangzhou city, Guangdong Province, China; Department of Nephrology, Guangdong Provincial Hospital of Chinese Medicine, The Second Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou city, Guangdong Province, China; Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden;; European Renal Nutrition Working Group of the European Renal Association-European Dialysis Transplant Association (ERA-EDTA)
| | - Valeria Saglimbene
- Faculty of Medicine and Health, Sydney School of Public Health, The University of Sydney, Edward Ford Building A27, NSW 2006, Australia; Department of Emergency and Organ Transplantation, University of Bari, Bari, Piazza Giulio Cesare, 70124 Bari, Italy
| | - Germaine Wong
- Faculty of Medicine and Health, Sydney School of Public Health, The University of Sydney, Edward Ford Building A27, NSW 2006, Australia; Centre for Kidney Research, The Children's Hospital at Westmead, Westmead, NSW, Australia
| | - Patrizia Natale
- Faculty of Medicine and Health, Sydney School of Public Health, The University of Sydney, Edward Ford Building A27, NSW 2006, Australia; Department of Emergency and Organ Transplantation, University of Bari, Bari, Piazza Giulio Cesare, 70124 Bari, Italy
| | - Marinella Ruospo
- Department of Emergency and Organ Transplantation, University of Bari, Bari, Piazza Giulio Cesare, 70124 Bari, Italy
| | - Jonathan C Craig
- College of Medicine and Public Health, Flinders University, Adelaide, Australia
| | - Jorgen Hegbrant
- Division of Nephrology, Department of Clinical Sciences, Lund University, Lund, Sweden
| | - Juan Jesus Carrero
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden;; European Renal Nutrition Working Group of the European Renal Association-European Dialysis Transplant Association (ERA-EDTA)
| | - Giovanni F M Strippoli
- Faculty of Medicine and Health, Sydney School of Public Health, The University of Sydney, Edward Ford Building A27, NSW 2006, Australia; Department of Emergency and Organ Transplantation, University of Bari, Bari, Piazza Giulio Cesare, 70124 Bari, Italy.
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22
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Abstract
While much has been written about the syndrome of diabetic cardiomyopathy, clinicians and research scientists are now beginning to realize that an entirely unique syndrome exists, albeit with several commonalities to the diabetic syndrome, that being obesity cardiomyopathy. This syndrome develops independent of such comorbidities as hypertension, myocardial infarction and coronary artery disease; and it is characterized by specific alterations in adipose tissue function, inflammation and metabolism. Recent insights into the etiology of the syndrome and its consequences have focused on the roles played by altered intracellular calcium homeostasis, reactive oxygen species, and mitochondrial dysfunction. A timely and comprehensive review by Ren, Wu, Wang, Sowers and Zhang (1) identifies unique mechanisms underlying this syndrome, its relationship to heart failure and the recently identified incidence of COVID-19-related cardiovascular mortality. Importantly, the review concludes by advancing recommendations for novel approaches to the clinical management of this dangerous form of cardiomyopathy.
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Affiliation(s)
- Willis K Samson
- Department of Pharmacology and Physiology, Saint Louis University, St. Louis, MO, United States
| | - Gina L C Yosten
- Department of Pharmacology and Physiology, Saint Louis University, St. Louis, MO, United States
| | - Carol Ann Remme
- Experimental Cardiology, Academic Medical Center, Amsterdam, Netherlands
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23
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Brigham EP, Anderson JA, Brook RD, Calverley PMA, Celli BR, Cowans NJ, Crim C, Diserens JE, Martinez FJ, McCormack MC, Newby DE, Yates J, Vestbo J, Wu TD, Wise RA. Challenging the obesity paradox: extreme obesity and COPD mortality in the SUMMIT trial. ERJ Open Res 2021; 7:00902-2020. [PMID: 34322545 PMCID: PMC8311131 DOI: 10.1183/23120541.00902-2020] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Accepted: 05/01/2021] [Indexed: 01/06/2023] Open
Abstract
Populations with COPD demonstrate higher survival in overweight and obese compared with normal weight; the “obesity paradox”. Relationships in less-severe COPD are unclear, as is the impact of cardiovascular risk, and few studies include individuals at extremes of obesity. We examined the relationship between body mass index (BMI; defined as underweight: <20 kg·m−2, normal: 20–25 kg·m−2, overweight: 25– <30 kg·m−2, obese class I: 30– <35 kg·m−2, class II: 35– <40 kg·m−2 and class III: ≥40 kg·m−2), morbidity, and mortality in the SUMMIT trial population (n=16 485), characterised by moderate COPD and heightened cardiovascular risk with a substantial proportion with class III obesity. The association between BMI category and time to event was modelled via proportional hazards (reference normal weight) adjusted for demographics and cardiorespiratory disease. Consistent with the paradox, underweight individuals demonstrated higher mortality (hazard ratio (HR) 1.31 (95% CI 1.04–1.64)), with lower mortality among overweight (HR 0.62 (95% CI 0.52–0.73)) and obese class I (HR 0.75 (95% CI 0.62–0.90)). However, mortality increased in obese class III (HR 1.36 (95% CI 1.00–1.86)). Death was primarily attributable to cardiovascular causes. Within a large, multinational cohort with moderate COPD and increased cardiovascular risk, the phenomenon of reduced mortality with obesity did not persist at BMI >40 kg·m−2, suggesting that obesity may not remain protective at the extremes in this population. In a population with moderate COPD, at heightened cardiovascular risk and containing a substantial proportion of individuals with BMI ≥40 kg/m2, BMI and mortality demonstrate a U-shaped (rather than J-shaped) relationshiphttps://bit.ly/3hDztI6
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Affiliation(s)
- Emily P Brigham
- Division of Pulmonary and Critical Care Medicine, Johns Hopkins Medicine, Baltimore, MD, USA
| | | | - Robert D Brook
- Division of Cardiovascular Diseases, Wayne State University, Detroit, MI, USA
| | - Peter M A Calverley
- Dept of Medicine, Clinical Sciences Centre, University of Liverpool, University Hospital Aintree, Liverpool, UK
| | - Bartolome R Celli
- Division of Pulmonary and Critical Care Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | | | - Courtney Crim
- Research and Development, GlaxoSmithKline, Research Triangle Park, NC, USA
| | | | - Fernando J Martinez
- Division of Pulmonary and Critical Care Medicine, Weill Cornell Medicine, New York, NY, USA
| | - Meredith C McCormack
- Division of Pulmonary and Critical Care Medicine, Johns Hopkins Medicine, Baltimore, MD, USA
| | - David E Newby
- Centre for Cardiovascular Science, University of Edinburgh, Edinburgh, UK
| | - Julie Yates
- Research and Development, GlaxoSmithKline, Research Triangle Park, NC, USA
| | - Jorgen Vestbo
- Division of Infection, Immunity and Respiratory Medicine, Manchester Academic Health Sciences Centre, The University of Manchester and Manchester University NHS Foundation Trust, Manchester, UK
| | - Tianshi David Wu
- Section of Pulmonary, Critical Care, and Sleep Medicine, Baylor College of Medicine, Houston, TX, USA
| | - Robert A Wise
- Division of Pulmonary and Critical Care Medicine, Johns Hopkins Medicine, Baltimore, MD, USA
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24
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Sweatt AJ, Reddy R, Rahaghi FN, Al-Naamani N. What's new in pulmonary hypertension clinical research: lessons from the best abstracts at the 2020 American Thoracic Society International Conference. Pulm Circ 2021; 11:20458940211040713. [PMID: 34471517 PMCID: PMC8404658 DOI: 10.1177/20458940211040713] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/02/2021] [Accepted: 07/26/2021] [Indexed: 12/23/2022] Open
Abstract
In this conference paper, we review the 2020 American Thoracic Society International Conference session titled, "What's New in Pulmonary Hypertension Clinical Research: Lessons from the Best Abstracts". This virtual mini-symposium took place on 21 October 2020, in lieu of the annual in-person ATS International Conference which was cancelled due to the COVID-19 pandemic. Seven clinical research abstracts were selected for presentation in the session, which encompassed five major themes: (1) standardizing diagnosis and management of pulmonary hypertension, (2) improving risk assessment in pulmonary arterial hypertension, (3) evaluating biomarkers of disease activity, (4) understanding metabolic dysregulation across the spectrum of pulmonary hypertension, and (5) advancing knowledge in chronic thromboembolic pulmonary hypertension. Focusing on these five thematic contexts, we review the current state of knowledge, summarize presented research abstracts, appraise their significance and limitations, and then discuss relevant future directions in pulmonary hypertension clinical research.
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Affiliation(s)
- Andrew J. Sweatt
- Division of Pulmonary, Allergy and Critical Care Medicine, Stanford University, Stanford, CA, USA
- Vera Moulton Wall Center for Pulmonary Vascular Disease, Stanford, CA, USA
| | - Raju Reddy
- Division of Pulmonary and Critical Care Medicine, Oregon Health and Science University, Portland, OR, USA
| | - Farbod N. Rahaghi
- Division of Pulmonary and Critical Care Medicine, Brigham and Women’s Hospital, Boston, MA, USA
| | - Nadine Al-Naamani
- Division of Pulmonary and Critical Care Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
| | - on behalf of the American Thoracic Society Pulmonary Circulation Assembly Early Career Working Group
- Division of Pulmonary, Allergy and Critical Care Medicine, Stanford University, Stanford, CA, USA
- Vera Moulton Wall Center for Pulmonary Vascular Disease, Stanford, CA, USA
- Division of Pulmonary and Critical Care Medicine, Oregon Health and Science University, Portland, OR, USA
- Division of Pulmonary and Critical Care Medicine, Brigham and Women’s Hospital, Boston, MA, USA
- Division of Pulmonary and Critical Care Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
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25
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Chen B, Yo CH, Patel R, Liu B, Su KY, Hsu WT, Lee CC. Morbid obesity but not obesity is associated with increased mortality in patients undergoing endoscopic retrograde cholangiopancreatography: A national cohort study. United European Gastroenterol J 2021; 9:561-570. [PMID: 33951338 PMCID: PMC8259364 DOI: 10.1002/ueg2.12070] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2020] [Revised: 11/25/2020] [Accepted: 12/30/2020] [Indexed: 02/06/2023] Open
Abstract
Background The relationship between body weight and outcomes of endoscopic retrograde cholangiopancreatography (ERCP) is unclear. Objectives This study aimed to investigate the impact of obesity and morbid obesity on mortality and ERCP‐related complications in patients who underwent ERCP. Methods We conducted a US population‐based retrospective cohort study using the Nationwide Readmissions Databases (2013–2014). A total of 159,264 eligible patients who underwent ERCP were identified, of which 137,158 (86.12%) were normal weight, 12,522 (7.86%) were obese, and 9584 (6.02%) were morbidly obese. The primary outcome was in‐hospital mortality. The secondary outcomes were the length of stay, total cost, and ERCP‐related complications. Multivariate analysis and propensity score (PS) matching analysis were performed. The analysis was repeated in a restricted cohort to eliminate confounders. Results Patients with morbid obesity, as compared to normal‐weight patients, were associated with a significantly higher in‐hospital mortality (hazard ratio [HR]: 5.54; 95% confidence interval [CI]: 1.23–25.04). Obese patients were not associated with significantly different mortality comparing to normal weight (HR: 1.00; 95% CI: 0.14–7.12). Patients with morbid obesity were also found to have an increased length of hospital stay and total cost. The rate of ERCP‐related complications was comparable among the three groups except for a higher cholecystitis rate after ERCP in obese patients. Conclusions Morbid obesity but not obesity was associated with increased mortality, length of stay, and total cost in patients undergoing ERCP.
Established knowledge on this subject
1. Obesity is a prevalent phenomenon. 2. The impact of obesity and morbid obesity on mortality in patients undergoing ERCP remains unclear.
Significant and/or new findings of this study?
1. Morbid obesity but not obesity was associated with increased mortality in patients undergoing ERCP.
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Affiliation(s)
- Bing Chen
- Department of Medicine, Mount Sinai Morningside and Mount Sinai West, New York City, New York, USA
| | - Chia-Hung Yo
- Department of Emergency Medicine, Far Eastern Memorial Hospital, New Taipei City, Taiwan
| | - Ramya Patel
- Department of Medicine, Mount Sinai Morningside and Mount Sinai West, New York City, New York, USA
| | - Bolun Liu
- Department of Medicine, John H. Stroger, Jr. Hospital of Cook County, Chicago, Illinois, USA
| | - Ke-Ying Su
- Department of Emergency Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - Wan-Ting Hsu
- Department of Epidemiology, Harvard T. H. Chan School of Public Health, Boston, Massachusetts, USA
| | - Chien-Chang Lee
- Department of Emergency Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan.,Center of Intelligent Healthcare, National Taiwan University Hospital, Taipei, Taiwan
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26
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Ren J, Wu NN, Wang S, Sowers JR, Zhang Y. Obesity cardiomyopathy: evidence, mechanisms, and therapeutic implications. Physiol Rev 2021; 101:1745-1807. [PMID: 33949876 PMCID: PMC8422427 DOI: 10.1152/physrev.00030.2020] [Citation(s) in RCA: 160] [Impact Index Per Article: 53.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
The prevalence of heart failure is on the rise and imposes a major health threat, in part, due to the rapidly increased prevalence of overweight and obesity. To this point, epidemiological, clinical, and experimental evidence supports the existence of a unique disease entity termed “obesity cardiomyopathy,” which develops independent of hypertension, coronary heart disease, and other heart diseases. Our contemporary review evaluates the evidence for this pathological condition, examines putative responsible mechanisms, and discusses therapeutic options for this disorder. Clinical findings have consolidated the presence of left ventricular dysfunction in obesity. Experimental investigations have uncovered pathophysiological changes in myocardial structure and function in genetically predisposed and diet-induced obesity. Indeed, contemporary evidence consolidates a wide array of cellular and molecular mechanisms underlying the etiology of obesity cardiomyopathy including adipose tissue dysfunction, systemic inflammation, metabolic disturbances (insulin resistance, abnormal glucose transport, spillover of free fatty acids, lipotoxicity, and amino acid derangement), altered intracellular especially mitochondrial Ca2+ homeostasis, oxidative stress, autophagy/mitophagy defect, myocardial fibrosis, dampened coronary flow reserve, coronary microvascular disease (microangiopathy), and endothelial impairment. Given the important role of obesity in the increased risk of heart failure, especially that with preserved systolic function and the recent rises in COVID-19-associated cardiovascular mortality, this review should provide compelling evidence for the presence of obesity cardiomyopathy, independent of various comorbid conditions, underlying mechanisms, and offer new insights into potential therapeutic approaches (pharmacological and lifestyle modification) for the clinical management of obesity cardiomyopathy.
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Affiliation(s)
- Jun Ren
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital Fudan University, Shanghai, China.,Department of Laboratory Medicine and Pathology, University of Washington, Seattle, Washington
| | - Ne N Wu
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital Fudan University, Shanghai, China
| | - Shuyi Wang
- School of Medicine, Shanghai University, Shanghai, China.,University of Wyoming College of Health Sciences, Laramie, Wyoming
| | - James R Sowers
- Dalton Cardiovascular Research Center, Diabetes and Cardiovascular Research Center, University of Missouri-Columbia, Columbia, Missouri
| | - Yingmei Zhang
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital Fudan University, Shanghai, China
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27
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Perkkiö Y, Auvinen J, Timonen M, Jokelainen J, Valkeapää N, Koiranen M, Saltevo J, Keinänen-Kiukaanniemi S. Factors predicting 31-year survival among a population cohort in Northern Finland. Int J Circumpolar Health 2021; 80:1909334. [PMID: 33858289 PMCID: PMC8057088 DOI: 10.1080/22423982.2021.1909334] [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] [Indexed: 10/26/2022] Open
Abstract
We evaluated the survival of a subarctic population and the significance of traditional risk factors for mortality, causes of death and their seasonal variation from the period of 1984-2014. By the end of 2014 (follow-up), 644 (34.4% from 1,869) participants had died (42.1% of cardiovascular causes, 22.4% of neoplastic diseases). The average age at death±SD was 74.6±11.4 years for women (n=284) and 70.2±12.0 years for men (n=360). After adjusting for baseline age, the major risk factors predicting death were male sex (hazard ratio [HR] 1.80; 95% confidence interval [CI] 1.54-2.10), current smoking (HR 1.85; 95% CI 1.58-2.17), obesity (HR 1.75; 95% CI 1.45-2.12), high blood pressure (HR 1.46; 95% CI 1.24-1.72), cardiovascular disease (HR 1.62; 95% CI 1.36-1.93) and depression (HR 1.61; 95% CI 1.21-2.14) at baseline.The most common causes of death and the main risk factors predicting death in this population were the same as reported globally. Lifestyle factors had an important impact in predicting survival. The most common causes of death were the same for men and women. There was no significant difference in overall mortality rate between winter and summer, but cerebrovascular and pulmonary causes of death were more common during winter.
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Affiliation(s)
- Yrjö Perkkiö
- Center for Life Course Health Research, Faculty of Medicine, University of Oulu, Oulu, Finland.,Department of Primary Health Care in Lapland Central Hospital, Health Centre of Muonio-Enontekiö, Rovaniemi, Finland
| | - Juha Auvinen
- Center for Life Course Health Research, Faculty of Medicine, University of Oulu, Oulu, Finland.,Health Center of Oulunkaari, Ii, Finland
| | - Markku Timonen
- Center for Life Course Health Research, Faculty of Medicine, University of Oulu, Oulu, Finland.,Unit of General Practice, Oulu University Hospital, Oulu, Finland
| | - Jari Jokelainen
- Unit of General Practice, Oulu University Hospital, Oulu, Finland.,Infrastructure for Population Studies, University of Oulu, Finland
| | | | - Markku Koiranen
- Center for Life Course Health Research, Faculty of Medicine, University of Oulu, Oulu, Finland
| | - Juha Saltevo
- Central Finland Central Hospital, Jyväskylä, Finland
| | - Sirkka Keinänen-Kiukaanniemi
- Center for Life Course Health Research, Faculty of Medicine, University of Oulu, Oulu, Finland.,Health Center of Selänne, Pyhäjärvi, Finland
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28
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Koterov AN, Ushenkova LN, Biryukov AP. Hill’s Temporality Criterion: Reverse Causation and Its Radiation Aspect. BIOL BULL+ 2021. [DOI: 10.1134/s1062359020120031] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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29
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Buchard A, Richens JG. Artificial Intelligence for Medical Decisions. Artif Intell Med 2021. [DOI: 10.1007/978-3-030-58080-3_28-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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30
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Nicholson E, Allison DJ, Bullock A, Heisz JJ. Examining the obesity paradox: A moderating effect of fitness on adipose endocrine function in older adults. Mech Ageing Dev 2020; 193:111406. [PMID: 33278406 DOI: 10.1016/j.mad.2020.111406] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 11/16/2020] [Accepted: 11/17/2020] [Indexed: 01/26/2023]
Abstract
Despite evidence linking obesity with increased mortality, older adults with excessive adiposity seem protected, resulting in a so-called obesity paradox. Obesity is characterized by leptin resistance, which contributes to increased risk of all-cause mortality. Therefore, lifestyle factors, such as physical fitness, that lower leptin independent of adiposity may be confounding the obesity paradox. To investigate this, we evaluated whether physical fitness moderated the relationship between leptin and adiposity. We found older adults with higher fitness had lower body mass (r(39) = -0.43, p < 0.01), leptin (r(39) = -0.29, p = 0.03) and inflammation (IL-1β: (r(39) = -0.69, p < 0.01); TNF-α: (r(39) = -0.30, p = 0.03)). Fitness moderated the relationship between leptin and adiposity (F(5, 37) = 3.73, p < 0.01, R2 = 0.33) to reveal the obesity paradox in moderately and high fit individuals (b = 216.24, t(37) = 1.46, p = 0.15; b= -88.10, t(37) = -0.49, p = 0.63) but not in low fit individuals. These results show the link between obesity and mortality may not be dependent on total adiposity, but rather on endocrine function and adipocyte leptin secretion. These results have important implications for older adults struggling to maintain healthy body composition and suggest that fitness may promote overall wellbeing.
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Affiliation(s)
- E Nicholson
- McMaster University, 1280 Main Street West, Hamilton, Ontario, L8S 4L8, Canada
| | - D J Allison
- McMaster University, 1280 Main Street West, Hamilton, Ontario, L8S 4L8, Canada
| | - A Bullock
- University of British Columbia, 2215 Wesbrook Mall, Vancouver, British Columbia, V6T 2B5, Canada
| | - J J Heisz
- McMaster University, 1280 Main Street West, Hamilton, Ontario, L8S 4L8, Canada.
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31
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Djekic D, Shi L, Calais F, Carlsson F, Landberg R, Hyötyläinen T, Frøbert O. Effects of a Lacto-Ovo-Vegetarian Diet on the Plasma Lipidome and Its Association with Atherosclerotic Burden in Patients with Coronary Artery Disease-A Randomized, Open-Label, Cross-over Study. Nutrients 2020; 12:E3586. [PMID: 33238431 PMCID: PMC7700669 DOI: 10.3390/nu12113586] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Revised: 11/08/2020] [Accepted: 11/20/2020] [Indexed: 02/07/2023] Open
Abstract
A vegetarian diet has been associated with a lower risk of coronary artery disease (CAD). Plasma triacylglycerols, ceramides, and phosphatidylcholines may improve prediction of recurrent coronary events. We sought to investigate effects of a lacto-ovo-vegetarian diet (VD) on plasma lipidome in CAD patients and simultaneously assess associations of plasma lipids with the extent of coronary atherosclerotic burden. We analyzed 214 plasma lipids within glycerolipid, sphingolipid, and sterol lipid classes using lipidomics from a randomized controlled, crossover trial comprising 31 CAD patients on standard medical therapy. Subjects completed a four-week intervention with VD and isocaloric meat diet (MD), separated by a four-week washout period. The VD increased levels of 11 triacylglycerols and lowered 7 triacylglycerols, 21 glycerophospholipids, cholesteryl ester (18:0), and ceramide (d18:1/16:0) compared with MD. VD increased triacylglycerols with long-chain polyunsaturated fatty acyls while decreased triacylglycerols with saturated fatty acyls, phosphatidylcholines, and sphingomyelins than MD. The Sullivan extent score (SES) exhibited on coronary angiograms were inversely associated with triacylglycerols with long-chain unsaturated fatty acyls. Phosphatidylcholines that were lower with VD were positively associated with SES and the total number of stenotic lesions. The VD favorably changed levels of several lipotoxic lipids that have previously been associated with increased risk of coronary events in CAD patients.
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Affiliation(s)
- Demir Djekic
- Department of Cardiology, Faculty of Health, Örebro University Hospital, 701 85 Örebro, Sweden; (D.D.); (F.C.); (O.F.)
| | - Lin Shi
- School of Food Engineering and Nutritional Science, Shaanxi Normal University, 710061 Xi’an, China
- Division of Food and Nutrition Science, Department of Biology and Biological Engineering, Chalmers University of Technology, 412 96 Gothenburg, Sweden; (F.C.); (R.L.)
| | - Fredrik Calais
- Department of Cardiology, Faculty of Health, Örebro University Hospital, 701 85 Örebro, Sweden; (D.D.); (F.C.); (O.F.)
| | - Frida Carlsson
- Division of Food and Nutrition Science, Department of Biology and Biological Engineering, Chalmers University of Technology, 412 96 Gothenburg, Sweden; (F.C.); (R.L.)
| | - Rikard Landberg
- Division of Food and Nutrition Science, Department of Biology and Biological Engineering, Chalmers University of Technology, 412 96 Gothenburg, Sweden; (F.C.); (R.L.)
- Department of Public Health and Clinical Medicine, Umeå University, 901 87 Umeå, Sweden
| | | | - Ole Frøbert
- Department of Cardiology, Faculty of Health, Örebro University Hospital, 701 85 Örebro, Sweden; (D.D.); (F.C.); (O.F.)
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32
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Gajulapalli RD, Kadri A, Gad M, Chahine J, Nusairat L, Rader F. Impact of Obesity in Hospitalized Patients with Heart Failure: A Nationwide Cohort Study. South Med J 2020; 113:568-577. [PMID: 33140111 DOI: 10.14423/smj.0000000000001174] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
OBJECTIVES Obesity and cardiovascular disease remain significant burdens on the overall provision of health care in the United States. Obesity has been shown to be a direct risk factor for heart failure (HF). We conducted a nationwide cohort study to assess the short-term impact of obesity in hospitalized patients with HF. METHODS We identified 1,520,871 encounters with a primary diagnosis of HF in the 2013-2014 Nationwide Readmission Database. We excluded patients younger than 18 years (n = 2755), hospitalized patients discharged in December (n = 126,137), patients with missing mortality information (n = 477), missing length of stay (LOS; n = 91), patients who were transferred to another hospital (n = 38,489), and patients with conflicting body weight information (n = 7757). Multivariable logistic regression was used to evaluate the association between baseline characteristics (including the presence of obesity) and in-hospital mortality, as well as 30-day readmission rates. RESULTS The overall in-patient mortality rate was 2.8% (n = 37,927). Obese patients had numerically a lower mortality (1.8%) compared with the nonobese patients (3.1%); however, the difference in risk was not significant on multivariable analysis (hazard ratio 0.97, 95% confidence interval 0.94-1.01). In the overall cohort, 20.6% (n = 269,988) were readmitted within 30 days. The risk of 30-day readmission was significantly lower in obese patients (19.4%) compared with nonobese patients (20.9%) (odds ratio 0.85, 95% confidence interval 0.84-0.86). Obese patients had longer LOSs (median of 5 days [3-7] vs 4 days [2-6], P < 0.001) and higher costs of index admission (median of $27,206 [$16,027-$48,316] vs $23,339 [$13,698-$41,982], P < 0.001) compared with nonobese patients. CONCLUSIONS In this cross-sectional study of patients hospitalized for HF in the United States, obesity was not associated with a higher risk of inpatient mortality, but it was associated with a lower 30-day readmission rate. Obese patients with HF, however, had longer LOSs and higher costs of index admission. Our findings support the obesity paradox seen in patients with HF.
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Affiliation(s)
- Rama Dilip Gajulapalli
- From the Cleveland Clinic Foundation, Cleveland, Ohio, and the David Geffen School of Medicine at the University of California, Los Angeles
| | - Amer Kadri
- From the Cleveland Clinic Foundation, Cleveland, Ohio, and the David Geffen School of Medicine at the University of California, Los Angeles
| | - Mohamed Gad
- From the Cleveland Clinic Foundation, Cleveland, Ohio, and the David Geffen School of Medicine at the University of California, Los Angeles
| | - Johnny Chahine
- From the Cleveland Clinic Foundation, Cleveland, Ohio, and the David Geffen School of Medicine at the University of California, Los Angeles
| | - Leen Nusairat
- From the Cleveland Clinic Foundation, Cleveland, Ohio, and the David Geffen School of Medicine at the University of California, Los Angeles
| | - Florian Rader
- From the Cleveland Clinic Foundation, Cleveland, Ohio, and the David Geffen School of Medicine at the University of California, Los Angeles
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33
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Mansouri V, Mansourian M, Qorbani M, Riahi R, Karimi R, Motlagh ME, Heshmat R, Kelishadi R. Path Analysis on Determinants of Childhood Obesity and Associated Risk Factors of Cardiovascular, Renal, and Hepatic Diseases: The CASPIAN-V Study. JOURNAL OF CHILD SCIENCE 2020. [DOI: 10.1055/s-0040-1716917] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
AbstractThe interaction between several lifestyle and obesogenic environmental factors is considered as the main underlying factor for the escalating trend of childhood obesity and its adverse consequences. In this study, we assessed the mutual influence of lifestyle habits and body mass index (BMI) as well as risk factors for cardiometabolic, hepatic, and renal disorders to define the causality power of each item. This nationwide cross-sectional study was conducted as the fifth round of a school-based surveillance program. Overall, 14,800 students living in Iran were studied, and blood samples were obtained from 4,200 of them. Demographic factors, anthropometric and biochemical measures were used to define lifestyle-related latent variables as well as cardiac, renal, and hepatic risk indicators. Total, direct, and indirect effects between factors were analyzed using the standardized regression weights for each pathway. Data from 14,274 students (participation rate of 99%) and 3,843 blood samples were included. All of the latent variables had a significant direct effect on BMI, with the most potent effect of unhealthy nutrition (β ≅ 0.63) in boys and girls. BMI has significant direct effects on risk indicators of cardiovascular, renal, and hepatic diseases with the most powerful effect on cardiovascular risk factors (β ≅ − 0.08). The most important predisposing factor for obesity was unhealthy nutrition, whereas increased activity, adequate sleep, and better hygiene had protective roles. BMI shows the strongest association with indicator of cardiovascular diseases. These findings underscore the importance of implementing public health programs for the prevention of chronic noncommunicable diseases.
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Affiliation(s)
- Vahid Mansouri
- Department of Pediatrics, Child Growth and Development Research Center, Research Institute for Primordial Prevention of Non-communicable Disease, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Marjan Mansourian
- Department of Epidemiology and Biostatistics, School of Health, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mostafa Qorbani
- Department of Epidemiology, Non-communicable Diseases Research Center, Alborz University of Medical Sciences, Karaj, Iran
- Department of Epidemiology, Non-communicable Diseases Research Center, Endocrinology, and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Roya Riahi
- Department of Pediatrics, Child Growth and Development Research Center, Research Institute for Primordial Prevention of Non-communicable Disease, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Rahele Karimi
- Department of Epidemiology and Biostatistics, School of Health, Isfahan University of Medical Sciences, Isfahan, Iran
| | | | - Ramin Heshmat
- Department of Epidemiology, Chronic Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Roya Kelishadi
- Department of Pediatrics, Child Growth and Development Research Center, Research Institute for Primordial Prevention of Non-communicable Disease, Isfahan University of Medical Sciences, Isfahan, Iran
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34
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Weng L, Fan J, Yu C, Guo Y, Bian Z, Wei Y, Yang L, Chen Y, Du H, Chang L, Gong W, Chen J, Chen Z, Du B, Lv J, Li L. Body-mass index and long-term risk of sepsis-related mortality: a population-based cohort study of 0.5 million Chinese adults. Crit Care 2020; 24:534. [PMID: 32867859 PMCID: PMC7457784 DOI: 10.1186/s13054-020-03229-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Accepted: 08/07/2020] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND Sepsis represents a major worldwide healthcare burden. However, how body-mass index (BMI) is related to the long-term risk of sepsis-related mortality in low- and middle-income countries remains uncertain. METHODS We examined the associations of sepsis-related mortality with both baseline BMI and waist circumference (WC) using data from China Kadoorie Biobank, a prospective cohort recruited during 2004-2008 and followed up to December 2016. After excluding participants with chronic obstructive pulmonary disease, tuberculosis, cancer, heart disease, and stroke, and omitting the first 3 years of follow-up, 440,763 participants remained for analysis. RESULTS During a median follow-up of 10.0 years, 1957 sepsis-related deaths (3,134,870 person-years) were included for analysis. Compared with reference BMI of 22.5 to < 25.0 kg/m2, the multivariable-adjusted hazard ratios (HRs) for sepsis-related mortality were 2.42 (95% CIs 2.07-2.84) for BMI of < 18.5, 1.59 (1.36-1.85) for 18.5 to < 20.0, 1.21 (1.06-1.38) for 20.0 to < 22.5, 0.97 (0.83-1.13) for 25.0 to < 27.5, 0.98 (0.80-1.21) for 27.5 to < 30.0, and 1.22 (0.93-1.60) for ≥ 30.0 kg/m2. Further adjustment for WC led to slightly augmentation of the effect size for the lower BMI groups and null association in the obese group. In the association analysis between WC and sepsis-related mortality, compared with the middle quintile group, only the highest quintile group showed an increased risk of sepsis-related mortality after adjusted for BMI (HR = 1.54; 95% CI 1.28-1.84). CONCLUSIONS Underweight, lower normal weight, and abdominal obesity are associated with increased future risk of sepsis-related mortality over 10 years in the Chinese population. The double burden of underweight and obesity indicates a heavy sepsis burden faced by low- and middle-income countries.
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Affiliation(s)
- Li Weng
- Medical Intensive Care Unit, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, 100730, China
| | - Junning Fan
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, 38 Xueyuan Road, Beijing, 100191, China
| | - Canqing Yu
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, 38 Xueyuan Road, Beijing, 100191, China
| | - Yu Guo
- Chinese Academy of Medical Sciences, Beijing, China
| | - Zheng Bian
- Chinese Academy of Medical Sciences, Beijing, China
| | - Yuxia Wei
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, 38 Xueyuan Road, Beijing, 100191, China
| | - Ling Yang
- Medical Research Council Population Health Research Unit, University of Oxford, Oxford, UK
- Nuffield Department of Population Health, Clinical Trial Service Unit & Epidemiological Studies Unit (CTSU), University of Oxford, Oxford, UK
| | - Yiping Chen
- Medical Research Council Population Health Research Unit, University of Oxford, Oxford, UK
- Nuffield Department of Population Health, Clinical Trial Service Unit & Epidemiological Studies Unit (CTSU), University of Oxford, Oxford, UK
| | - Huaidong Du
- Medical Research Council Population Health Research Unit, University of Oxford, Oxford, UK
- Nuffield Department of Population Health, Clinical Trial Service Unit & Epidemiological Studies Unit (CTSU), University of Oxford, Oxford, UK
| | - Liang Chang
- Henan Center for Disease Control and Prevention, Henan, China
| | - Weiwei Gong
- Zhejiang Center for Disease Control and Prevention, Zhejiang, China
| | - Junshi Chen
- China National Center for Food Safety Risk Assessment, Beijing, China
| | - Zhengming Chen
- Nuffield Department of Population Health, Clinical Trial Service Unit & Epidemiological Studies Unit (CTSU), University of Oxford, Oxford, UK
| | - Bin Du
- Medical Intensive Care Unit, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, 100730, China.
| | - Jun Lv
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, 38 Xueyuan Road, Beijing, 100191, China.
- Key Laboratory of Molecular Cardiovascular Sciences (Peking University), Ministry of Education, Beijing, China.
- Peking University Institute of Environmental Medicine, Beijing, China.
| | - Liming Li
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, 38 Xueyuan Road, Beijing, 100191, China
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35
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Javed AA, Aljied R, Allison DJ, Anderson LN, Ma J, Raina P. Body mass index and all-cause mortality in older adults: A scoping review of observational studies. Obes Rev 2020; 21:e13035. [PMID: 32319198 DOI: 10.1111/obr.13035] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Revised: 03/14/2020] [Accepted: 03/24/2020] [Indexed: 12/17/2022]
Abstract
In older age, body composition changes as fat mass increases and redistributes. Therefore, the current body mass index (BMI) classification may not accurately reflect risk in older adults (65+). This study aimed to review the evidence on the association between BMI and all-cause mortality in older adults and specifically, the findings regarding overweight and obese BMI. A systematic search of the OVID MEDLINE and Embase databases was conducted between 2013 and September 2018. Observational studies examining the association between BMI and all-cause mortality within a community-dwelling population aged 65+ were included. Seventy-one articles were included. Studies operationalized BMI categorically (n = 60), continuously (n = 8) or as a numerical change/group transition (n = 7). Reduced risk of mortality was observed for the overweight BMI class compared with the normal BMI class (hazard ratios [HR] ranged 0.41-0.96) and for class 1 or 2 obesity in some studies. Among studies examining BMI change, increases in BMI demonstrated lower mortality risks compared with decreases in BMI (HR: 0.83-0.95). Overweight BMI classification or a higher BMI value may be protective with regard to all-cause mortality, relative to normal BMI, in older adults. These findings demonstrate the potential need for age-specific BMI cut-points in older adults.
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Affiliation(s)
- Ayesha A Javed
- Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, Canada.,McMaster Institute for Research on Aging, Hamilton, Canada
| | - Rumaisa Aljied
- Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, Canada
| | - David J Allison
- Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, Canada.,Department of Kinesiology, McMaster University, Hamilton, Canada
| | - Laura N Anderson
- Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, Canada.,McMaster Institute for Research on Aging, Hamilton, Canada
| | - Jinhui Ma
- Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, Canada.,McMaster Institute for Research on Aging, Hamilton, Canada
| | - Parminder Raina
- Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, Canada.,McMaster Institute for Research on Aging, Hamilton, Canada.,Labarge Centre for Mobility in Aging, Hamilton, Canada
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36
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Samuels JD, Lui B, White RS. Clearing Up the Obesity Paradox in Cardiac Surgery. J Cardiothorac Vasc Anesth 2020; 35:959-960. [PMID: 32660926 PMCID: PMC7309770 DOI: 10.1053/j.jvca.2020.06.057] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Accepted: 06/16/2020] [Indexed: 01/04/2023]
Affiliation(s)
- Jon D Samuels
- Department of Anesthesiology, Weill Cornell Medicine, New York, NY
| | - Briana Lui
- Department of Anesthesiology, Weill Cornell Medicine, New York, NY
| | - Robert S White
- Department of Anesthesiology, Weill Cornell Medicine, New York, NY
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37
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Miklisanskaya SV, Mazur NA, Solomasova LV, Chigineva VV. [The «obesity paradox» and its degree of proof]. TERAPEVT ARKH 2020; 92:84-90. [PMID: 32598704 DOI: 10.26442/00403660.2020.04.000421] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Indexed: 11/22/2022]
Abstract
The article gives a critical assessment of the so-called obesity paradox. Methodological errors that occur in the organization of studies that studied the obesity paradox and the formation of comparison groups are highlighted. There are also examples of the disappearance of the obesity paradox when taking into account additional risk factors. The organization of prospective studies or more careful consideration of all currently known risk factors for cardiovascular diseases (CVD) will significantly improve the results of the study of the effect of overweight and obesity on mortality in patients with CVD. Thus, despite the biological possibility of the existence of a positive effect of adipose tissue in CVD, the presence of a large number of errors identified in the analysis of the work of researchers obesity paradox require to reconsider the existence of this phenomenon, it should be taken into account the possibility that the obesity paradox may be a consequence of improper design studies to investigate this phenomenon.
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Affiliation(s)
| | - N A Mazur
- Russian Medical Academy of Continuous Professional Education
| | - L V Solomasova
- Russian Medical Academy of Continuous Professional Education
| | - V V Chigineva
- Russian Medical Academy of Continuous Professional Education
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38
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Wu TD, Ejike C, Wise RA, McCormack MC, Brigham EP. THE AUTHORS REPLY. Am J Epidemiol 2020; 189:482. [PMID: 31673707 DOI: 10.1093/aje/kwz245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Revised: 10/08/2019] [Accepted: 10/09/2019] [Indexed: 11/13/2022] Open
Affiliation(s)
- Tianshi David Wu
- Division of Pulmonary and Critical Care Medicine, School of Medicine, Johns Hopkins University, Baltimore, MD
| | - Chinedu Ejike
- Division of Pulmonary and Critical Care Medicine, School of Medicine, Johns Hopkins University, Baltimore, MD
| | - Robert A Wise
- Division of Pulmonary and Critical Care Medicine, School of Medicine, Johns Hopkins University, Baltimore, MD
| | - Meredith C McCormack
- Division of Pulmonary and Critical Care Medicine, School of Medicine, Johns Hopkins University, Baltimore, MD
| | - Emily P Brigham
- Division of Pulmonary and Critical Care Medicine, School of Medicine, Johns Hopkins University, Baltimore, MD
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39
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Kushner RF, Batsis JA, Butsch WS, Davis N, Golden A, Halperin F, Kidambi S, Machineni S, Novick M, Port A, Rubino DM, Saunders KH, Shapiro Manning L, Soleymani T, Kahan S. Weight History in Clinical Practice: The State of the Science and Future Directions. Obesity (Silver Spring) 2020; 28:9-17. [PMID: 31858735 DOI: 10.1002/oby.22642] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2019] [Accepted: 07/29/2019] [Indexed: 02/06/2023]
Abstract
Eliciting a weight history can provide clinically important information to aid in treatment decision-making. This view is consistent with the life course perspective of obesity and the aim of patient-centered care, one of six domains of health care quality. However, thus far, the value and practicality of including a weight history in the clinical assessment and treatment of patients with obesity have not been systematically explored. For these reasons, the Clinical Committee of The Obesity Society established a task force to review and assess the available evidence to address five key questions. It is concluded that weight history is an essential component of the medical history for patients presenting with overweight or obesity, and there are strong and emerging data that demonstrate the importance of life stage, duration of exposure to obesity, maximum BMI, and group-based trajectory modeling in predicting risk for increased morbidity and mortality. Consideration of these and other patient-specific factors may improve risk stratification and clinical decision-making for screening, counseling, and management. Recommendations are provided for the key elements that should be included in a weight history, and several needs for future clinical research are outlined.
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Affiliation(s)
- Robert F Kushner
- Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - John A Batsis
- Geisel School of Medicine at Dartmouth, Section of General Internal Medicine-3M, Dartmouth-Hitchcock Medical Center, The Dartmouth Institute, Lebanon, New Hampshire, USA
| | - W Scott Butsch
- Bariatric and Metabolic Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Nicola Davis
- Chronic Diseases and Prevention, Office of Population Health, NYC Health + Hospitals, New York, New York, USA
| | - Angela Golden
- NP Obesity Treatment Clinic, Flagstaff, Arizona, USA
| | - Florencia Halperin
- Center for Weight Management and Metabolic Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Srividya Kidambi
- Department of Medicine, Medical College of Wisconsin, Milwaukee, Wisconsin, USA
| | - Sriram Machineni
- Division of Endocrinology and Metabolism, Department of Medicine, UNC School of Medicine, Chapel Hill, North Carolina, USA
| | - Marsha Novick
- Department of Pediatrics, Penn State Milton S. Hershey Medical Center, Hershey, Pennsylvania, USA
| | - Ava Port
- Department of Medicine, Division of Endocrinology, Diabetes and Nutrition, University of Maryland, College Park, Maryland, USA
| | - Domenica M Rubino
- Washington Center for Weight Management and Research, Arlington, Virgnia, USA
| | - Katherine H Saunders
- Division of Endocrinology, Diabetes & Metabolism, Comprehensive Weight Control Center, Weill Cornell Medicine, New York, New York, USA
| | - Linda Shapiro Manning
- Clinical Development and Medical Affairs-Metabolism, Boehringer Ingelheim Pharmaceuticals, Inc., Ridgefield, Connecticut, USA
| | | | - Scott Kahan
- National Center for Weight and Wellness, Johns Hopkins Bloomberg School of Public Health, Washington, DC, USA
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40
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Iliodromiti S, Celis-Morales CA, Lyall DM, Anderson J, Gray SR, Mackay DF, Nelson SM, Welsh P, Pell JP, Gill JMR, Sattar N. The impact of confounding on the associations of different adiposity measures with the incidence of cardiovascular disease: a cohort study of 296 535 adults of white European descent. Eur Heart J 2019; 39:1514-1520. [PMID: 29718151 PMCID: PMC5930252 DOI: 10.1093/eurheartj/ehy057] [Citation(s) in RCA: 121] [Impact Index Per Article: 24.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/13/2017] [Accepted: 02/20/2018] [Indexed: 12/27/2022] Open
Abstract
Aims The data regarding the associations of body mass index (BMI) with cardiovascular (CVD) risk, especially for those at the low categories of BMI, are conflicting. The aim of our study was to examine the associations of body composition (assessed by five different measures) with incident CVD outcomes in healthy individuals. Methods and results A total of 296 535 participants (57.8% women) of white European descent without CVD at baseline from the UK biobank were included. Exposures were five different measures of adiposity. Fatal and non-fatal CVD events were the primary outcome. Low BMI (≤18.5 kg m−2) was associated with higher incidence of CVD and the lowest CVD risk was exhibited at BMI of 22–23 kg m−2 beyond, which the risk of CVD increased. This J-shaped association attenuated substantially in subgroup analyses, when we excluded participants with comorbidities. In contrast, the associations for the remaining adiposity measures were more linear; 1 SD increase in waist circumference was associated with a hazard ratio of 1.16 [95% confidence interval (CI) 1.13–1.19] for women and 1.10 (95% CI 1.08–1.13) for men with similar magnitude of associations for 1 SD increase in waist-to-hip ratio, waist-to-height ratio, and percentage body fat mass. Conclusion Increasing adiposity has a detrimental association with CVD health in middle-aged men and women. The association of BMI with CVD appears more susceptible to confounding due to pre-existing comorbidities when compared with other adiposity measures. Any public misconception of a potential ‘protective’ effect of fat on CVD risk should be challenged. The obesity paradox is mainly due to the effect of confounding on BMI and disappears on other adiposity measures. ![]()
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Affiliation(s)
- Stamatina Iliodromiti
- Department of Obstetrics and Gynaecology, School of Medicine, University of Glasgow, Level 2, New Lister Building, 10-16 Alexandra Parade, Glasgow G31 2ER, UK
| | - Carlos A Celis-Morales
- Institute of Cardiovascular and Medical Sciences, University of Glasgow, University Avenue, Glasgow G12 8TA, UK
| | - Donald M Lyall
- Institute of Health and Wellbeing, University of Glasgow, 1 Lilybank Gardens, Glasgow G12 8RZ, UK
| | - Jana Anderson
- Institute of Health and Wellbeing, University of Glasgow, 1 Lilybank Gardens, Glasgow G12 8RZ, UK
| | - Stuart R Gray
- Institute of Cardiovascular and Medical Sciences, University of Glasgow, University Avenue, Glasgow G12 8TA, UK
| | - Daniel F Mackay
- Institute of Health and Wellbeing, University of Glasgow, 1 Lilybank Gardens, Glasgow G12 8RZ, UK
| | - Scott M Nelson
- Department of Obstetrics and Gynaecology, School of Medicine, University of Glasgow, Level 2, New Lister Building, 10-16 Alexandra Parade, Glasgow G31 2ER, UK
| | - Paul Welsh
- Institute of Cardiovascular and Medical Sciences, University of Glasgow, University Avenue, Glasgow G12 8TA, UK
| | - Jill P Pell
- Institute of Health and Wellbeing, University of Glasgow, 1 Lilybank Gardens, Glasgow G12 8RZ, UK
| | - Jason M R Gill
- Institute of Cardiovascular and Medical Sciences, University of Glasgow, University Avenue, Glasgow G12 8TA, UK
| | - Naveed Sattar
- Institute of Cardiovascular and Medical Sciences, University of Glasgow, University Avenue, Glasgow G12 8TA, UK
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41
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Wu TD, Ejike CO, Wise RA, McCormack MC, Brigham EP. Investigation of the Obesity Paradox in Chronic Obstructive Pulmonary Disease, According to Smoking Status, in the United States. Am J Epidemiol 2019; 188:1977-1983. [PMID: 31504124 DOI: 10.1093/aje/kwz185] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Revised: 08/05/2019] [Accepted: 08/13/2019] [Indexed: 11/14/2022] Open
Abstract
An obesity paradox in chronic obstructive pulmonary disease (COPD), whereby overweight/obese individuals have improved survival, has been well-described. These studies have generally included smokers. It is unknown whether the paradox exists in individuals with COPD arising from factors other than smoking. Nonsmoking COPD is understudied yet represents some 25%-45% of the disease worldwide. To determine whether the obesity paradox differs between ever- and never-smokers with COPD, 1,723 adult participants with this condition were examined from 2 iterations of the National Health and Nutrition Examination Survey (1988-1994, 2007-2010), with mortality outcomes followed through December 2011. Using Cox proportional hazards models, adjusted for sociodemographic factors, lung function, and survey cycle, ever/never-smoking was found to modify the association between body mass index and hazard of death. Compared with normal-weight participants, overweight/obese participants had lower hazard of death among ever-smokers (for overweight, adjusted hazard ratio (aHR) = 0.56, 95% confidence interval (CI): 0.43, 0.74; for obesity, aHR = 0.66, 95% CI: 0.48, 0.92), but never-smokers did not (overweight, aHR = 1.41, 95% CI: 0.66, 3.03; obesity, aHR = 1.29, 95% CI: 0.48, 3.48). An obesity paradox appeared to be absent among never-smokers with COPD. This, to our knowledge, novel finding might be explained by pathophysiological differences between smoking-related and nonsmoking COPD or by smoking-associated methodological biases.
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Trends of Cardiac Complications in Patients With Rheumatoid Arthritis: Analysis of the United States National Inpatient Sample; 2005-2014. Curr Probl Cardiol 2019; 46:100455. [PMID: 31526517 DOI: 10.1016/j.cpcardiol.2019.100455] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Accepted: 07/10/2019] [Indexed: 12/17/2022]
Abstract
BACKGROUND Rheumatoid arthritis (RA) is a chronic inflammatory condition. Chronic inflammation is associated with atherosclerosis, hypertension, diabetes, chronic obstructive pulmonary disease (COPD), chronic kidney disease. But sparse data are available regarding the trends of cardiovascular diseases and complications in RA. We conducted a National Inpatient Sample database analysis to demonstrate the trends of cardiac complications in patients with RA. METHODS We used National Inpatient Sample data from 2005 to 2014 to identify admissions with the diagnosis of RA and identified who had associated cardiovascular complications also. The International Classification of Diseases-9th Revision-Clinical Modification codes were used for the diagnoses of RA; congestive heart failure (CHF), acute myocardial infarction (AMI), and atrial fibrillation (AF). RESULTS A statistically significant increasing trend of AMI, CHF, and AF was found. Independent predictors of mortality in RA patients with AMI were age (OR 1.03, CI 1.02-1.04; P < 0.001), COPD (OR 1.67, CI 1.40-2.00; P < 0.001), cerebrovascular disease (OR 2.207, CI 1.71-2.86; P < 0.001), renal disease (OR 1.42, CI 1.16-1.75; P = 0.001), and alcohol abuse (OR 2.73, CI 1.73-4.32; P < 0.001). Independent predictors of mortality in RA patients with CHF were age (odds ratio [OR] 1.02, confidence interval [CI] 1.017-1.024; P < 0.001]), COPD (OR 1.09, CI 1.01-1.18; P = 0.023), cerebrovascular disease (OR 1.67, CI 1.44-1.95; P < 0.001), renal disease (OR 1.16, CI 1.07-1.27; P = 0.001). Independent predictors of mortality in RA patients with AF were age (OR 1.02, CI 1.02-1.03; P < 0.001), race (OR 1.16, CI 1.02-1.31; P = 0.022), COPD (OR 1.56, CI 1.42-1.71; P < 0.001), peripheral arterial disease (OR 1.34, CI 1.16-1.53; P < 0.001), cerebrovascular disease (OR 2.27, CI 1.0-2.58; P < 0.001), renal disease (OR 1.60, CI 1.44-1.80; P < 0.001). The mortality trend has increased significantly in the CHF (P = 0.025) and AF (P = 0.042) groups during this study period. CONCLUSIONS We have found a significant increase in trend of cardiovascular complications in RA patients. The proportion of patients, with cardiovascular comorbidities, have also been increased significantly.
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Kim YY, Kang HJ, Ha S, Park JH. Interactions of Behavioral Changes in Smoking, High-risk Drinking, and Weight Gain in a Population of 7.2 Million in Korea. J Prev Med Public Health 2019; 52:234-241. [PMID: 31390686 PMCID: PMC6686107 DOI: 10.3961/jpmph.18.290] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Accepted: 06/07/2019] [Indexed: 11/09/2022] Open
Abstract
OBJECTIVES To identify simultaneous behavioral changes in alcohol consumption, smoking, and weight using a fixed-effect model and to characterize their associations with disease status. METHODS This study included 7 000 529 individuals who participated in the national biennial health-screening program every 2 years from 2009 to 2016 and were aged 40 or more. We reconstructed the data into an individual-level panel dataset with 4 waves. We used a fixed-effect model for smoking, heavy alcohol drinking, and overweight. The independent variables were sex, age, lifestyle factors, insurance contribution, employment status, and disease status. RESULTS Becoming a high-risk drinker and losing weight were associated with initiation or resumption of smoking. Initiation or resumption of smoking and weight gain were associated with non-high-risk drinkers becoming high-risk drinkers. Smoking cessation and becoming a high-risk drinker were associated with normal-weight participants becoming overweight. Participants with newly acquired diabetes mellitus, ischemic heart disease, stroke, and cancer tended to stop smoking, discontinue high-risk drinking, and return to a normal weight. CONCLUSIONS These results obtained using a large-scale population-based database documented interactions among lifestyle factors over time.
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Affiliation(s)
- Yeon-Yong Kim
- Big Data Steering Department, National Health Insurance Service, Wonju, Korea
| | - Hee-Jin Kang
- Big Data Steering Department, National Health Insurance Service, Wonju, Korea
| | - Seongjun Ha
- Big Data Steering Department, National Health Insurance Service, Wonju, Korea
| | - Jong Heon Park
- Big Data Steering Department, National Health Insurance Service, Wonju, Korea
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Jee Y, Jeon J, Back JH, Ryu M, Cho SI. Trajectory of Smoking and Incidence of Atherosclerotic Cardiovascular Disease among Korean Young Adult Men. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 16:ijerph16122219. [PMID: 31238495 PMCID: PMC6617148 DOI: 10.3390/ijerph16122219] [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] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Revised: 06/13/2019] [Accepted: 06/18/2019] [Indexed: 11/16/2022]
Abstract
Introduction: Smoking among young adults is associated with atherosclerotic cardiovascular disease (ASCVD) in middle age. Our aim was to analyze the trajectory of smoking in young adults and analyze the effects of the trajectory group on incident ASCVD. Methods: This study was conducted among 60,709 young adult men aged 20–29 years who received health screening every two years from 1992–2004. Trajectory analysis was performed through smoking survey data measured 7 times during this period. ASCVD, including ischemic heart disease (IHD) and stroke events were confirmed from 2005–2015. The association between the trajectory group and ASCVD risk was analyzed using Cox proportional hazard models, controlling for covariates and mediators. Results: Trajectory analysis showed that smoking categorized into five groups as follows: Group 1 (28.3%), low steady; Group 2 (14.7%), lowering; Group 3 (17.3%), high steady; Group 4 (15.6%), rise and fall; and Group 5 (24.2%), very high steady. The model performance of the trajectory model (Akaike information criterion; AIC = 51,670.78) with mediators was better than the model (AIC = 51,847.85) without mediators. Group 5 showed a 49% higher risk of ASCVD than Group 1. The risk of IHD was 1.63-times higher for Group 5 and 1.31-times higher for Group 4, compared to Group 1. Compared to Group 1, Group 5 had a 1.36- and 1.58-times higher risk for total stroke and ischemic stroke, respectively. Conclusions: In young adult men, the multiple measured trajectory model with mediators was far more informative than one-time smoking for explaining the association with cardiovascular disease.
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Affiliation(s)
- Yongho Jee
- Department of Public Health Science, Graduate School of Public Health, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Korea.
- Institute for Health Promotion, Graduate School of Public Health, Yonsei University, 50-1 Yonsei-ro Seodaemun-gu, Seoul 03722, Korea.
| | - Jooeun Jeon
- Institute for Health Promotion, Graduate School of Public Health, Yonsei University, 50-1 Yonsei-ro Seodaemun-gu, Seoul 03722, Korea.
- Department of Epidemiology and Health Promotion, Graduate School of Public Health, Yonsei University, 50-1 Yonsei-ro Seodaemun-gu, Seoul 03722, Korea.
| | - Joung Hwan Back
- Health Insurance Policy Research Institute, National Health Insurance Service, 32, Geongang-ro, Wonju-si, Gangwon-do 26464, Korea.
| | - Mikyung Ryu
- Central College, Kyonggi University, 154-42, Gwanggyosan-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do 16627, Korea.
| | - Sung-Il Cho
- Department of Public Health Science, Graduate School of Public Health, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Korea.
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Wang L, Du X, Dong JZ, Liu WN, Zhou YC, Li SN, Guo XY, Jiang CX, Yu RH, Sang CH, Tang RB, Long DY, Liu N, Bai R, Macle L, Ma CS. Body mass index and all-cause mortality in patients with atrial fibrillation: insights from the China atrial fibrillation registry study. Clin Res Cardiol 2019; 108:1371-1380. [PMID: 30953181 DOI: 10.1007/s00392-019-01473-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Accepted: 03/26/2019] [Indexed: 12/30/2022]
Abstract
BACKGROUND Impact of body mass index (BMI) on all-cause mortality in atrial fibrillation (AF) patients remains controversial. METHODS A total of 10,942 AF patients were prospectively enrolled and categorized into four BMI groups: underweight (BMI < 18.5 kg/m2), normal weight (BMI 18.5-24 kg/m2), overweight (BMI 24-28 kg/m2) and obesity (BMI ≥ 28 kg/m2). The primary outcome was all-cause mortality. Different Cox proportional hazards models were performed to evaluate the association between BMI and all-cause mortality. RESULTS During a median follow-up of 30 months (IQR 18-48 months), 862 deaths events occurred. Compared to normal BMI, higher BMI was associated with a lower mortality risk (overweight: HR 0.70; 95% CI 0.61-0.81, P < 0.0001 and obesity: HR 0.54; 95% CI 0.44-0.67, P < 0.0001) and lower BMI was associated with a higher mortality risk (HR 2.23, 95% CI 1.67-2.97, P < 0.0001). CONCLUSION A reversed relationship between BMI and all-cause mortality in AF patients was found. Higher risk of mortality was observed in underweight patients compared to patients with a normal BMI, while overweight and obese patients had a lower risk of all-cause mortality. CLINICAL TRIAL REGISTRATION URL: http://www.chictr.org.cn/showproj.aspx?proj=5831. Unique identifier: ChiCTR-OCH-13003729.
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Affiliation(s)
- Lu Wang
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, National Clinical Research Centre for Cardiovascular Diseases, No. 2 Beijing Anzhen Road, Chaoyang District, Beijing, 100029, China
| | - Xin Du
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, National Clinical Research Centre for Cardiovascular Diseases, No. 2 Beijing Anzhen Road, Chaoyang District, Beijing, 100029, China.,Heart Health Research Center, Beijing, China.,University of New South Wales, Sydney, Australia
| | - Jian-Zeng Dong
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, National Clinical Research Centre for Cardiovascular Diseases, No. 2 Beijing Anzhen Road, Chaoyang District, Beijing, 100029, China. .,Cardiovascular Hospital, First Affiliated Hospital of Zhengzhou University, No. 2 Building East Road, Zhengzhou, 450052, Henan, China.
| | - Wen-Na Liu
- School of Statistics, Faculty of Economics and Management, East China Normal University, Shanghai, China
| | - Ying-Chun Zhou
- School of Statistics, Faculty of Economics and Management, East China Normal University, Shanghai, China
| | - Song-Nan Li
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, National Clinical Research Centre for Cardiovascular Diseases, No. 2 Beijing Anzhen Road, Chaoyang District, Beijing, 100029, China
| | - Xue-Yuan Guo
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, National Clinical Research Centre for Cardiovascular Diseases, No. 2 Beijing Anzhen Road, Chaoyang District, Beijing, 100029, China
| | - Chen-Xi Jiang
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, National Clinical Research Centre for Cardiovascular Diseases, No. 2 Beijing Anzhen Road, Chaoyang District, Beijing, 100029, China
| | - Rong-Hui Yu
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, National Clinical Research Centre for Cardiovascular Diseases, No. 2 Beijing Anzhen Road, Chaoyang District, Beijing, 100029, China
| | - Cai-Hua Sang
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, National Clinical Research Centre for Cardiovascular Diseases, No. 2 Beijing Anzhen Road, Chaoyang District, Beijing, 100029, China
| | - Ri-Bo Tang
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, National Clinical Research Centre for Cardiovascular Diseases, No. 2 Beijing Anzhen Road, Chaoyang District, Beijing, 100029, China
| | - De-Yong Long
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, National Clinical Research Centre for Cardiovascular Diseases, No. 2 Beijing Anzhen Road, Chaoyang District, Beijing, 100029, China
| | - Nian Liu
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, National Clinical Research Centre for Cardiovascular Diseases, No. 2 Beijing Anzhen Road, Chaoyang District, Beijing, 100029, China
| | - Rong Bai
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, National Clinical Research Centre for Cardiovascular Diseases, No. 2 Beijing Anzhen Road, Chaoyang District, Beijing, 100029, China
| | - Laurent Macle
- Montreal Heart Institute, Université de Montréal, Montreal, QC, Canada
| | - Chang-Sheng Ma
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, National Clinical Research Centre for Cardiovascular Diseases, No. 2 Beijing Anzhen Road, Chaoyang District, Beijing, 100029, China
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Bouslama M, Perez HJ, Barreira CM, Haussen DC, Grossberg JA, Belagaje SR, Bianchi NA, Anderson AM, Frankel MR, Nogueira RG. Body Mass Index and Clinical Outcomes in Large Vessel Occlusion Acute Ischemic Stroke after Endovascular Therapy. INTERVENTIONAL NEUROLOGY 2019; 8:144-151. [PMID: 32508896 DOI: 10.1159/000496703] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2018] [Accepted: 01/07/2019] [Indexed: 01/24/2023]
Abstract
Background and Purpose Several reports have described lower mortality rates in overweight or obese patients as compared to normal weight ones. In the past decade, several studies have investigated the phenomenon, commonly known as the obesity paradox, with mixed results thus far. We sought to determine whether outcomes differ between patients with large vessel occlusion strokes (LVOS) after endovascular therapy (ET) according to their body mass index (BMI). Methods We reviewed our prospectively collected endovascular database at a tertiary care academic institution. All patients that underwent ET for acute LVOS were categorized according to their BMI into 4 groups: (1) underweight (BMI < 18.5), (2) normal weight (BMI = 18.5-25), (3) overweight (BMI = 25-30), and (4) obese (BMI > 30). Baseline characteristics, procedural radiological as well as outcome parameters where compared. Results A total of 926 patients qualified for the study, of which 20 (2.2%) were underweight, 253 (27.3%) had a normal weight, 315 (34%) were overweight, and 338 (36.5%) were obese. When compared with normal weight (reference), overweight patients were younger, had higher rates of dyslipidemia and diabetes and higher glucose levels, while obese patients were younger, less often smokers, and had higher rates of hypertension and diabetes and higher glucose levels. Other baseline and procedural characteristics were comparable. The rates of successful reperfusion (modified treatment in cerebral ischemia, 2b-3), parenchymal hematomas, 90-day good clinical outcomes (modified Rankin scale, 0-2), and 90-day mortality were comparable between groups. On multivariate analysis, BMI was not associated with good outcomes nor mortality. Conclusion In patients treated with mechanical thrombectomy, BMI is not associated with outcomes. However, patients who are overweight or obese have more comorbidities and a higher stroke risk and, thus, should strive for a normal weight.
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Affiliation(s)
- Mehdi Bouslama
- Marcus Stroke and Neuroscience Center, Grady Memorial Hospital, Atlanta, Georgia, USA.,Departments of Neurology, Radiology, and Neurosurgery, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Hilarie J Perez
- Marcus Stroke and Neuroscience Center, Grady Memorial Hospital, Atlanta, Georgia, USA.,Departments of Neurology, Radiology, and Neurosurgery, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Clara M Barreira
- Marcus Stroke and Neuroscience Center, Grady Memorial Hospital, Atlanta, Georgia, USA.,Departments of Neurology, Radiology, and Neurosurgery, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Diogo C Haussen
- Marcus Stroke and Neuroscience Center, Grady Memorial Hospital, Atlanta, Georgia, USA.,Departments of Neurology, Radiology, and Neurosurgery, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Jonathan A Grossberg
- Marcus Stroke and Neuroscience Center, Grady Memorial Hospital, Atlanta, Georgia, USA.,Departments of Neurology, Radiology, and Neurosurgery, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Samir R Belagaje
- Marcus Stroke and Neuroscience Center, Grady Memorial Hospital, Atlanta, Georgia, USA.,Departments of Neurology, Radiology, and Neurosurgery, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Nicolas A Bianchi
- Marcus Stroke and Neuroscience Center, Grady Memorial Hospital, Atlanta, Georgia, USA.,Departments of Neurology, Radiology, and Neurosurgery, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Aaron M Anderson
- Marcus Stroke and Neuroscience Center, Grady Memorial Hospital, Atlanta, Georgia, USA.,Departments of Neurology, Radiology, and Neurosurgery, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Michael R Frankel
- Marcus Stroke and Neuroscience Center, Grady Memorial Hospital, Atlanta, Georgia, USA.,Departments of Neurology, Radiology, and Neurosurgery, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Raul G Nogueira
- Marcus Stroke and Neuroscience Center, Grady Memorial Hospital, Atlanta, Georgia, USA.,Departments of Neurology, Radiology, and Neurosurgery, Emory University School of Medicine, Atlanta, Georgia, USA
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48
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Obesity cardiomyopathy: the role of obstructive sleep apnea and obesity hypoventilation syndrome. Ir J Med Sci 2019; 188:783-790. [DOI: 10.1007/s11845-018-01959-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Accepted: 12/19/2018] [Indexed: 01/03/2023]
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Mouchti S, Whitehouse MR, Sayers A, Hunt LP, MacGregor A, Blom AW. The Association of Body Mass Index with Risk of Long-Term Revision and 90-Day Mortality Following Primary Total Hip Replacement: Findings from the National Joint Registry for England, Wales, Northern Ireland and the Isle of Man. J Bone Joint Surg Am 2018; 100:2140-2152. [PMID: 30562295 DOI: 10.2106/jbjs.18.00120] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
BACKGROUND The influence of obesity on outcomes following total hip replacement is unclear. Restriction of total hip replacement on the basis of body mass index (BMI) has been suggested. The purpose of this study was to assess the influence of BMI on the risk of revision and 90-day mortality. METHODS This was a population-based, longitudinal cohort study of the National Joint Registry (NJR) for England, Wales, Northern Ireland and the Isle of Man. Using data recorded from April 2003 to December 2015, linked to Office for National Statistics data, we ascertained revision and 90-day mortality rates following primary total hip replacement by BMI category. The probability of revision was estimated using Kaplan-Meier methods. Associations of BMI with revision and mortality were explored using adjusted Cox proportional hazards regression models. RESULTS We investigated revision and 90-day mortality among 415,598 and 413,741 primary total hip replacements, respectively. Each data set accounts for approximately 52% of the total number of recorded operations in the NJR. Thirty-eight percent of the patients were classified as obese. At 10 years, class-III obese patients had the highest cumulative probability of revision (6.7% [95% confidence interval (CI), 5.5% to 8.2%]), twice that of the underweight group (3.3% [95% CI, 2.2% to 4.9%]). When the analysis was adjusted for age, sex, American Society of Anesthesiologists [ASA] grade, year of operation, indication, and fixation type, compared with patients with normal BMI, significantly elevated hazard ratios (HRs) for revision were observed for patients in the BMI categories of class-I obese (≥30 to <35 kg/m) (HR, 1.14 [95% CI, 1.07 to 1.22]), class-II obese (≥35 to <40 kg/m) (HR, 1.30 [95% CI, 1.19 to 1.40]), and class-III obese (≥40 to ≤60 kg/m) (HR, 1.43 [95% CI, 1.27 to 1.61]) (p < 0.0005 for all). Underweight patients had a substantially higher cumulative probability of 90-day mortality (1.17%; 95% CI, 0.86% to 1.58%) compared with patients with normal BMI (0.43%; 95% CI, 0.39% to 0.48%). The risk of 90-day mortality was significantly higher for the underweight group (HR, 2.09 [95% CI, 1.51 to 2.89]; p < 0.0005) and significantly lower for patients who were categorized as overweight (HR, 0.70; 95% CI, 0.61 to 0.81; p < 0.0005), class-I obese (HR, 0.69 [95% CI, 0.59 to 0.81]; p < 0.0005), and class-II obese (HR, 0.79 [95% CI, 0.63 to 0.98]; p = 0.049) compared with patients with normal BMI. CONCLUSIONS Although long-term revision rates following total hip replacement were higher among obese patients, we believe that the rates remained acceptable by contemporary standards and were balanced by a lower risk of 90-day mortality. LEVEL OF EVIDENCE Prognostic Level III. See Instructions for Authors for a complete description of levels of evidence.
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Affiliation(s)
- Sofia Mouchti
- Musculoskeletal Research Unit, Translational Health Sciences, Bristol Medical School, University of Bristol, Bristol, United Kingdom
| | - Michael R Whitehouse
- Musculoskeletal Research Unit, Translational Health Sciences, Bristol Medical School, University of Bristol, Bristol, United Kingdom.,National Institute for Health Research Bristol Biomedical Research Centre, University Hospitals Bristol NHS Foundation Trust and University of Bristol, Bristol, United Kingdom
| | - Adrian Sayers
- Musculoskeletal Research Unit, Translational Health Sciences, Bristol Medical School, University of Bristol, Bristol, United Kingdom.,Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, United Kingdom
| | - Linda P Hunt
- Musculoskeletal Research Unit, Translational Health Sciences, Bristol Medical School, University of Bristol, Bristol, United Kingdom
| | | | - Ashley W Blom
- Musculoskeletal Research Unit, Translational Health Sciences, Bristol Medical School, University of Bristol, Bristol, United Kingdom.,National Institute for Health Research Bristol Biomedical Research Centre, University Hospitals Bristol NHS Foundation Trust and University of Bristol, Bristol, United Kingdom
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Pegueroles J, Jiménez A, Vilaplana E, Montal V, Carmona-Iragui M, Pané A, Alcolea D, Videla L, Casajoana A, Clarimón J, Ortega E, Vidal J, Blesa R, Lleó A, Fortea J. Obesity and Alzheimer's disease, does the obesity paradox really exist? A magnetic resonance imaging study. Oncotarget 2018; 9:34691-34698. [PMID: 30410669 PMCID: PMC6205180 DOI: 10.18632/oncotarget.26162] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Accepted: 09/10/2018] [Indexed: 11/25/2022] Open
Abstract
Mid-life obesity is an established risk factor for Alzheimer's disease (AD) dementia, whereas late-life obesity has been proposed as a protective state. Weight loss, which predates cognitive decline, might explain this obesity paradox on AD risk. We aimed to assess the impact of late life obesity on brain structure taking into account weight loss as a potential confounder. We included 162 elderly controls of the Alzheimer's Disease Neuroimaging Initiative (ADNI) with available 3T MRI scan. Significant weight loss was defined as relative weight loss ≥5% between the baseline and last follow-up visit. To be able to capture weight loss, only subjects with a minimum clinical and anthropometrical follow-up of 12 months were included. Individuals were categorized into three groups according to body mass index (BMI) at baseline: normal-weight (BMI<25 Kg/m2), overweight (BMI 25-30 Kg/m2) and obese (BMI>30 Kg/m2). We performed both an interaction analysis between obesity and weight loss, and stratified group analyses in the weight-stable and weigh-loss groups. We found a significant interaction between BMI and weight loss affecting brain structure in widespread cortical areas. The stratified analyses showed atrophy in occipital, inferior temporal, precuneus and frontal regions in the weight stable group, but increased cortical thickness in the weight-loss group. In conclusion, our data support that weight loss negatively confounds the association between late-life obesity and brain atrophy. The obesity paradox on AD risk might be explained by reverse causation.
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Affiliation(s)
- Jordi Pegueroles
- Memory Unit, Department of Neurology, Hospital de la Santa Creu i Sant Pau-Biomedical Research Institute Sant Pau, Barcelona, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain
| | - Amanda Jiménez
- Obesity Unit, Department of Endocrinology and Nutrition, Hospital Clinic Universitari de Barcelona, Barcelona, Spain
- Institut d'Investigacions Biomèdiques August Pi Sunyer (IDIBAPS), Barcelona, Spain
| | - Eduard Vilaplana
- Memory Unit, Department of Neurology, Hospital de la Santa Creu i Sant Pau-Biomedical Research Institute Sant Pau, Barcelona, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain
| | - Victor Montal
- Memory Unit, Department of Neurology, Hospital de la Santa Creu i Sant Pau-Biomedical Research Institute Sant Pau, Barcelona, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain
| | - María Carmona-Iragui
- Memory Unit, Department of Neurology, Hospital de la Santa Creu i Sant Pau-Biomedical Research Institute Sant Pau, Barcelona, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain
| | - Adriana Pané
- Obesity Unit, Department of Endocrinology and Nutrition, Hospital Clinic Universitari de Barcelona, Barcelona, Spain
| | - Daniel Alcolea
- Memory Unit, Department of Neurology, Hospital de la Santa Creu i Sant Pau-Biomedical Research Institute Sant Pau, Barcelona, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain
| | - Laura Videla
- Memory Unit, Department of Neurology, Hospital de la Santa Creu i Sant Pau-Biomedical Research Institute Sant Pau, Barcelona, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain
| | - Anna Casajoana
- Department of Gastrointestinal and Obesity Surgery, Hospital de Barcelona-SCIAS, Barcelona, Spain
| | - Jordi Clarimón
- Memory Unit, Department of Neurology, Hospital de la Santa Creu i Sant Pau-Biomedical Research Institute Sant Pau, Barcelona, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain
| | - Emilio Ortega
- Obesity Unit, Department of Endocrinology and Nutrition, Hospital Clinic Universitari de Barcelona, Barcelona, Spain
- Institut d'Investigacions Biomèdiques August Pi Sunyer (IDIBAPS), Barcelona, Spain
- Centro de Investigación Biomédica en Red de la Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Barcelona, Spain
| | - Josep Vidal
- Obesity Unit, Department of Endocrinology and Nutrition, Hospital Clinic Universitari de Barcelona, Barcelona, Spain
- Institut d'Investigacions Biomèdiques August Pi Sunyer (IDIBAPS), Barcelona, Spain
- Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas asociadas (CIBERDEM), Barcelona, Spain
| | - Rafael Blesa
- Memory Unit, Department of Neurology, Hospital de la Santa Creu i Sant Pau-Biomedical Research Institute Sant Pau, Barcelona, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain
| | - Alberto Lleó
- Memory Unit, Department of Neurology, Hospital de la Santa Creu i Sant Pau-Biomedical Research Institute Sant Pau, Barcelona, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain
| | - Juan Fortea
- Memory Unit, Department of Neurology, Hospital de la Santa Creu i Sant Pau-Biomedical Research Institute Sant Pau, Barcelona, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain
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