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Mai J, Wu Q, Wu H, Zeng C, Li Y, Shang J, Wu B, Cai Q, Du J, Gong J. Assessment of whole-body and regional body fat using abdominal quantitative computed tomography in Chinese women and men. Lipids Health Dis 2024; 23:47. [PMID: 38355592 PMCID: PMC10865662 DOI: 10.1186/s12944-024-02034-y] [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: 08/23/2023] [Accepted: 01/29/2024] [Indexed: 02/16/2024] Open
Abstract
BACKGROUND Being overweight or obese has become a serious public health concern, and accurate assessment of body composition is particularly important. More precise indicators of body fat composition include visceral adipose tissue (VAT) mass and total body fat percentage (TBF%). Study objectives included examining the relationships between abdominal fat mass, measured by quantitative computed tomography (QCT), and the whole-body and regional fat masses, measured by dual energy X-ray absorptiometry (DXA), as well as to derive equations for the prediction of TBF% using data obtained from multiple QCT slices. METHODS Whole-body and regional fat percentage were quantified using DXA in Chinese males (n = 68) and females (n = 71) between the ages of 24 and 88. All the participants also underwent abdominal QCT measurement, and their VAT mass and visceral fat volume (VFV) were assessed using QCT and DXA, respectively. RESULTS DXA-derived TBF% closely correlated with QCT abdominal fat percentage (r = 0.89-0.93 in men and 0.76-0.88 in women). Stepwise regression showed that single-slice QCT data were the best predictors of DXA-derived TBF%, DXA android fat percentage and DXA gynoid fat percentage. Cross-validation analysis showed that TBF% and android fat percentage could be accurately predicted using QCT data in both sexes. There were close correlations between QCT-derived and DXA-derived VFV (r = 0.97 in men and 0.93 in women). CONCLUSION Clinicians can assess the TBF% and android and gynoid fat percentages of Chinese women and men by analysing existing abdominal CT-derived data using the QCT technique.
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Affiliation(s)
- Jinci Mai
- Department of Nuclear Medicine, First Affiliated Hospital, Jinan University, Guangzhou, China
| | - Qiulian Wu
- School of Nursing, Jinan University, Guangzhou, China
| | - Huanhua Wu
- Department of Nuclear Medicine, First Affiliated Hospital, Jinan University, Guangzhou, China
| | - Chunyuan Zeng
- Department of Nuclear Medicine, First Affiliated Hospital, Jinan University, Guangzhou, China
| | - Yingxin Li
- Department of Nuclear Medicine, First Affiliated Hospital, Jinan University, Guangzhou, China
| | - Jingjie Shang
- Department of Nuclear Medicine, First Affiliated Hospital, Jinan University, Guangzhou, China
| | - Biao Wu
- Department of Nuclear Medicine, First Affiliated Hospital, Jinan University, Guangzhou, China
| | - Qijun Cai
- Department of Nuclear Medicine, First Affiliated Hospital, Jinan University, Guangzhou, China
| | - Junbi Du
- Department of Clinical Medicine, International College, Jinan University, Guangzhou, China
| | - Jian Gong
- Department of Nuclear Medicine, First Affiliated Hospital, Jinan University, Guangzhou, China.
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Kim HJ, Kim B, Kim S, Kwon H, Yun JM, Cho B, Park JH. Effects of the abdominal fat distribution on the relationship between exposure to air pollutants and thyroid hormones among Korean adult males. Eur J Med Res 2023; 28:423. [PMID: 37821991 PMCID: PMC10566041 DOI: 10.1186/s40001-023-01394-y] [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: 12/09/2022] [Accepted: 09/24/2023] [Indexed: 10/13/2023] Open
Abstract
BACKGROUND Several significant associations between air pollution and thyroid function have been reported, but few studies have identified whether these associations differ by obesity, particularly its regional distribution. We assessed the relationship between ambient air pollution and thyroid hormone, and whether this relationship is modified by abdominal adiposity, as indicated by the waist circumference, visceral adipose tissue (VAT), subcutaneous adipose tissue (SAT), and visceral-to-subcutaneous fat ratio (VSR) in Korean men. METHODS We included 2440 male adults in the final analysis and used each person's annual average exposure to four air pollutants: particulate matter with an aerodynamic diameter ≤ 10 μm (PM10), nitrogen dioxide, sulfur dioxide (SO2), and carbon monoxide (CO). Abdominal fat deposition was quantified by computed tomography. Serum thyrotropin (TSH) and free thyroxine (FT4) concentrations were measured for thyroid hormone. To evaluate the relationship between air pollution and thyroid hormone according to adiposity, we performed multiple linear regression analysis on the two subgroups stratified by abdominal fat level. RESULTS Abdominal adiposity was significantly related to FT4 concentration. The exposures to air pollutants were associated with increased TSH and decreased FT4 concentrations. In stratified analysis using abdominal fat traits, ambient air pollution except for SO2 was significantly related to increased TSH and decreased FT4 concentrations in the high adiposity group (all p < 0.05), but not in the normal adiposity group. Among the air pollutants, PM10 showed an association with an increase of TSH concentration in all group with high adiposity, including high VAT, high SAT, and high VSR groups (all p < 0.05). In case of FT4, CO showed a similar pattern. Among the abdominal fat-related traits, the VSR in the high adiposity group had the largest effect on the relationship between exposure to air pollutants and thyroid hormone. CONCLUSIONS This study suggests the first clue that the relationship between air pollution exposure and thyroid hormone differs according to abdominal fat distribution among Korean adult males.
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Affiliation(s)
- Hyun-Jin Kim
- National Cancer Control Institute, National Cancer Center, Goyang, 10408, South Korea
| | - Byungmi Kim
- National Cancer Control Institute, National Cancer Center, Goyang, 10408, South Korea
| | - Seyoung Kim
- National Cancer Control Institute, National Cancer Center, Goyang, 10408, South Korea
| | - Hyuktae Kwon
- Department of Family Medicine, Seoul National University Hospital, 03 Daehakro, Yeongun-Dong, Jongno-Gu, Seoul, 03080, Korea
| | - Jae Moon Yun
- Department of Family Medicine, Seoul National University Hospital, 03 Daehakro, Yeongun-Dong, Jongno-Gu, Seoul, 03080, Korea
| | - Belong Cho
- Department of Family Medicine, Seoul National University Hospital, 03 Daehakro, Yeongun-Dong, Jongno-Gu, Seoul, 03080, Korea
- Department of Family Medicine, Seoul National University College of Medicine, 103 Daehakro, Yeongun-Dong, Jongno-Gu, Seoul, 03080, Korea
| | - Jin-Ho Park
- Department of Family Medicine, Seoul National University Hospital, 03 Daehakro, Yeongun-Dong, Jongno-Gu, Seoul, 03080, Korea.
- Department of Family Medicine, Seoul National University College of Medicine, 103 Daehakro, Yeongun-Dong, Jongno-Gu, Seoul, 03080, Korea.
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Jiao Y, Sun J, Li Y, Zhao J, Shen J. Association between Adiposity and Bone Mineral Density in Adults: Insights from a National Survey Analysis. Nutrients 2023; 15:3492. [PMID: 37571429 PMCID: PMC10420642 DOI: 10.3390/nu15153492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 07/24/2023] [Accepted: 08/05/2023] [Indexed: 08/13/2023] Open
Abstract
Adiposity and bone mineral density (BMD) are closely associated. The aim of this research was to investigate the association between BMD and adiposity measures in adults, including gynoid percent fat (GPF), android percent fat (APF), total percent fat (TPF), visceral adipose tissue percent (VAT%), and total lean mass percent (TLM%). Participants (n = 11,615) aged 18 years and older were analyzed using data from the National Health and Nutrition Examination Survey (NHANES) spanning from 1999 to 2018. Associations between BMD and adiposity measures were investigated, and potential differences based on gender and age were explored. Significant negative associations were observed among TPF, APF, GPF, VAT%, and BMD in the fully adjusted models, while TLM% and BMD were positively associated. Stratifying by age and sex, TPF, GPF, and VAT% consistently demonstrated a negative correlation with BMD. In the young adult group, a TPF of 38.2% eliminated the negative correlation between BMD and TPF. Male BMD exhibited an inverted U-shaped relationship with APF, peaking at 35.6%, while a similar pattern was observed for the middle-aged group BMD and APF, with a peak at 31.7%. This large-sample research found a significant negative association between adiposity measures and BMD, providing valuable revelations regarding the intricate connection between adiposity and bone health.
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Affiliation(s)
- Yang Jiao
- Department of Orthopedics, Peking Union Medical College Hospital, Chinese Academy of Medical Science, Peking Union Medical College, Beijing 100730, China; (Y.J.); (J.Z.)
| | - Juan Sun
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Science, Peking Union Medical College, Beijing 100730, China;
| | - Yuanmeng Li
- Department of Endocrinology, Peking Union Medical College Hospital, Chinese Academy of Medical Science, Peking Union Medical College, Beijing 100730, China;
| | - Junduo Zhao
- Department of Orthopedics, Peking Union Medical College Hospital, Chinese Academy of Medical Science, Peking Union Medical College, Beijing 100730, China; (Y.J.); (J.Z.)
| | - Jianxiong Shen
- Department of Orthopedics, Peking Union Medical College Hospital, Chinese Academy of Medical Science, Peking Union Medical College, Beijing 100730, China; (Y.J.); (J.Z.)
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Lonardo A. The heterogeneity of metabolic syndrome presentation and challenges this causes in its pharmacological management: a narrative review focusing on principal risk modifiers. Expert Rev Clin Pharmacol 2023; 16:891-911. [PMID: 37722710 DOI: 10.1080/17512433.2023.2259306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2023] [Accepted: 09/12/2023] [Indexed: 09/20/2023]
Abstract
INTRODUCTION Metabolic syndrome (MetS), i.e. the cluster of cardiometabolic risk factors comprising visceral obesity, impaired glucose metabolism, arterial hypertension and atherogenic dyslipidemia, is prevalent globally and exacts a heavy toll on health care expenditures. AREAS COVERED The pathophenotypes of individual traits of the MetS in adults are discussed first, with strong emphasis on nonalcoholic fatty liver disease (NAFLD) and sex differences. Next, I discuss recent studies on phenotypic and outcome heterogeneity of the MetS, highlighting the role of NAFLD, sex, reproductive status, and depressive disorders. In the second half of the article, the therapeutic implications of the variable MetS types and features are analyzed, focusing on the most recent developments, and guidelines. EXPERT OPINION I have identified physiological, pathological, social and medical sources of phenotypical heterogeneity in the MetS and its constitutive traits. Improved understanding of these variables may be utilized in the setting of future precision medicine approaches in the field of metabolic disorders and target organ damage.
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Affiliation(s)
- Amedeo Lonardo
- Operating Unit of Metabolic Syndrome, Azienda Ospedaliero-Unversitaria di Modena, Ospedale Civile di Baggiovara, Baggiovara, Modena, Italy
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Williams R, Periasamy M. Genetic and Environmental Factors Contributing to Visceral Adiposity in Asian Populations. Endocrinol Metab (Seoul) 2020; 35:681-695. [PMID: 33397033 PMCID: PMC7803598 DOI: 10.3803/enm.2020.772] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2020] [Accepted: 12/12/2020] [Indexed: 12/20/2022] Open
Abstract
Obesity-associated metabolic illnesses are increasing at an alarming rate in Asian countries. A common feature observed in the Asian population is a higher incidence of abdominal obesity-the "skinny-fat" Asian syndrome. In this review, we critically evaluate the relative roles of genetics and environmental factors on fat distribution in Asian populations. While there is an upward trend in obesity among most Asian countries, it appears particularly conspicuous in Malaysia. We propose a novel theory, the Malaysian gene-environment multiplier hypothesis, which explains how ancestral variations in feast-and-famine cycles contribute to inherited genetic predispositions that, when acted on by modern-day stressors-most notably, urbanization, westernization, lifestyle changes, dietary transitions, cultural pressures, and stress-contribute to increased visceral adiposity in Asian populations. At present, the major determinants contributing to visceral adiposity in Asians are far from conclusive, but we seek to highlight critical areas for further research.
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Affiliation(s)
- Rachel Williams
- Department of Internal Medicine, University of Central Florida (UCF) College of Medicine, Burnett School of Biomedical Sciences, Orlando, FL, USA
| | - Muthu Periasamy
- Department of Internal Medicine, University of Central Florida (UCF) College of Medicine, Burnett School of Biomedical Sciences, Orlando, FL, USA
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Delli Paoli G, van de Laarschot D, Friesema ECH, Verkaik R, Giacco A, Senese R, Arp PP, Jhamai PM, Pagnotta SM, Broer L, Uitterlinden AG, Lanni A, Zillikens MC, de Lange P. Short-Term, Combined Fasting and Exercise Improves Body Composition in Healthy Males. Int J Sport Nutr Exerc Metab 2020; 30:386-395. [PMID: 32998111 DOI: 10.1123/ijsnem.2020-0058] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Revised: 07/21/2020] [Accepted: 07/22/2020] [Indexed: 01/12/2023]
Abstract
Fasting enhances the beneficial metabolic outcomes of exercise; however, it is unknown whether body composition is favorably modified on the short term. A baseline-follow-up study was carried out to assess the effect of an established protocol involving short-term combined exercise with fasting on body composition. One hundred seven recreationally exercising males underwent a 10-day intervention across 15 fitness centers in the Netherlands involving a 3-day gradual decrease of food intake, a 3-day period with extremely low caloric intake, and a gradual 4-day increase to initial caloric intake, with daily 30-min submaximal cycling. Using dual-energy X-ray absorptiometry analysis, all subjects substantially lost total body mass (-3.9 ± 1.9 kg; p < .001) and fat mass (-3.3 ± 1.3 kg; p < .001). Average lean mass was lost (-0.6 ± 1.5 kg; p < .001), but lean mass as a percentage of total body mass was not reduced. The authors observed a loss of -3.9 ± 1.9% android fat over total fat mass (p < .001), a loss of -2.2 ± 1.9% gynoid over total fat mass (p < .001), and reduced android/gynoid ratios (-0.05 ± 0.1; p < .001). Analyzing 15 preselected single-nucleotide polymorphisms in 13 metabolism-related genes revealed trending associations for thyroid state-related single-nucleotide polymorphisms rs225014 (deiodinase 2) and rs35767 (insulin-like growth factor1), and rs1053049 (PPARD). In conclusion, a short period of combined fasting and exercise leads to a substantial loss of body and fat mass without a loss of lean mass as a percentage of total mass.
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Affiliation(s)
- Giuseppe Delli Paoli
- Università degli Studi della Campania "Luigi Vanvitelli"
- European Consortium for Lifestyle, Exercise, Adaptation, and Nutrition (EULEAN)
| | - Denise van de Laarschot
- European Consortium for Lifestyle, Exercise, Adaptation, and Nutrition (EULEAN)
- Erasmus University Medical Center
| | - Edith C H Friesema
- European Consortium for Lifestyle, Exercise, Adaptation, and Nutrition (EULEAN)
- Erasmus University Medical Center
| | - Remco Verkaik
- European Consortium for Lifestyle, Exercise, Adaptation, and Nutrition (EULEAN)
- European Nutraceutical Services
| | - Antonia Giacco
- European Consortium for Lifestyle, Exercise, Adaptation, and Nutrition (EULEAN)
- Università degli Studi del Sannio
| | - Rosalba Senese
- Università degli Studi della Campania "Luigi Vanvitelli"
- European Consortium for Lifestyle, Exercise, Adaptation, and Nutrition (EULEAN)
| | | | | | | | | | - André G Uitterlinden
- European Consortium for Lifestyle, Exercise, Adaptation, and Nutrition (EULEAN)
- Erasmus University Medical Center
| | - Antonia Lanni
- Università degli Studi della Campania "Luigi Vanvitelli"
- European Consortium for Lifestyle, Exercise, Adaptation, and Nutrition (EULEAN)
| | - M Carola Zillikens
- European Consortium for Lifestyle, Exercise, Adaptation, and Nutrition (EULEAN)
- Erasmus University Medical Center
| | - Pieter de Lange
- Università degli Studi della Campania "Luigi Vanvitelli"
- European Consortium for Lifestyle, Exercise, Adaptation, and Nutrition (EULEAN)
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Min Y, Ma X, Sankaran K, Ru Y, Chen L, Baiocchi M, Zhu S. Sex-specific association between gut microbiome and fat distribution. Nat Commun 2019; 10:2408. [PMID: 31160598 PMCID: PMC6546740 DOI: 10.1038/s41467-019-10440-5] [Citation(s) in RCA: 64] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Accepted: 05/09/2019] [Indexed: 02/06/2023] Open
Abstract
The gut microbiome has been linked to host obesity; however, sex-specific associations between microbiome and fat distribution are not well understood. Here we show sex-specific microbiome signatures contributing to obesity despite both sexes having similar gut microbiome characteristics, including overall abundance and diversity. Our comparisons of the taxa associated with the android fat ratio in men and women found that there is no widespread species-level overlap. We did observe overlap between the sexes at the genus and family levels in the gut microbiome, such as Holdemanella and Gemmiger; however, they had opposite correlations with fat distribution in men and women. Our findings support a role for fat distribution in sex-specific relationships with the composition of the microbiome. Our results suggest that studies of the gut microbiome and abdominal obesity-related disease outcomes should account for sex-specific differences. The gut microbiome has been reported to be associated with obesity; here, the authors show that there are sex-specific differences in the relationship between gut microbes and abdominal obesity.
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Affiliation(s)
- Yan Min
- Stanford Prevention Research Center, Stanford School of Medicine, Stanford, CA 94305, USA.,Department of Health Research and Policy (Epidemiology), Stanford School of Medicine, Stanford, CA 94305, USA
| | - Xiaoguang Ma
- Department of Nutrition and Food Hygiene, School of Public Health, Zhejiang University, Hangzhou, 310058, China.,Chronic Disease Research Institute, School of Public Health, and Women's Hospital, Zhejiang University School of Medicine, 310058, Hangzhou, Zhejiang, China
| | - Kris Sankaran
- Department of Statistics, Stanford University, Stanford, CA 94305, USA
| | - Yuan Ru
- Department of Nutrition and Food Hygiene, School of Public Health, Zhejiang University, Hangzhou, 310058, China.,Chronic Disease Research Institute, School of Public Health, and Women's Hospital, Zhejiang University School of Medicine, 310058, Hangzhou, Zhejiang, China
| | - Lijin Chen
- Department of Nutrition and Food Hygiene, School of Public Health, Zhejiang University, Hangzhou, 310058, China.,Chronic Disease Research Institute, School of Public Health, and Women's Hospital, Zhejiang University School of Medicine, 310058, Hangzhou, Zhejiang, China
| | - Mike Baiocchi
- Stanford Prevention Research Center, Stanford School of Medicine, Stanford, CA 94305, USA. .,Department of Health Research and Policy (Epidemiology), Stanford School of Medicine, Stanford, CA 94305, USA. .,Department of Statistics, Stanford University, Stanford, CA 94305, USA.
| | - Shankuan Zhu
- Department of Nutrition and Food Hygiene, School of Public Health, Zhejiang University, Hangzhou, 310058, China. .,Chronic Disease Research Institute, School of Public Health, and Women's Hospital, Zhejiang University School of Medicine, 310058, Hangzhou, Zhejiang, China.
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8
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Taher R, Sara JD, Heidari B, Toya T, Lerman LO, Lerman A. Metabolic syndrome is associated with peripheral endothelial dysfunction amongst men. Diabetes Metab Syndr Obes 2019; 12:1035-1045. [PMID: 31308718 PMCID: PMC6615711 DOI: 10.2147/dmso.s204666] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/09/2019] [Accepted: 04/11/2019] [Indexed: 12/18/2022] Open
Abstract
Purpose: Metabolic syndrome (MetS) and peripheral endothelial dysfunction (PED) are both independently associated with an increased risk of cardiovascular disease (CVD). PED provides prognostic information beyond that provided by conventional risk factors. However, the association between MetS and PED remains uncertain. We evaluated the association between MetS and PED. Patients and methods: We performed a retrospective analysis of patients who were referred to Mayo Clinic between 2006 and 2014 for evaluation of chest pain and/or an assessment of CVD risk that included an assessment of PED measured with reactive hyperemia peripheral arterial tonometry. MetS was defined as the presence of at least 3 of the following: body mass index≥25 kg/m2, impaired fasting glucose or diabetes, high blood pressure or hypertension, hypertriglyceridemia, or low high-density lipoprotein cholesterol. Results: Six hundred seventy-eight patients were included (mean age 51.9±13.5 years, 418 (61.6%) women), of which 293 (43.2%) had PED, and 249 (36.7%) had MetS. In multivariable analyses adjusted for age, sex, CVD, smoking status, and elevated low-density lipoprotein, MetS was significantly associated with PED (Odds Ratio (OR) 2.06; P=0.0090). Of the individual MetS components, only being overweight and MetS range high-density lipoprotein had a similar association. After stratifying by sex, the association between MetS and PED persisted only in men (OR 3.16, P=0.0094). Conclusions: MetS is associated with PED in men undergoing an assessment of chest pain and/or CVD risk. Identifying PED in individuals with MetS could provide an abridged assessment of risk, potentially allowing for earlier and more intensive management of risk factors.
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Affiliation(s)
- Riad Taher
- Division of Cardiovascular Diseases, Mayo Clinic College of Medicine and Science, Rochester, MN, USA
| | - Jaskanwal D Sara
- Division of Cardiovascular Diseases, Mayo Clinic College of Medicine and Science, Rochester, MN, USA
| | - Behnam Heidari
- Division of Cardiovascular Diseases, Mayo Clinic College of Medicine and Science, Rochester, MN, USA
| | - Takumi Toya
- Division of Cardiovascular Diseases, Mayo Clinic College of Medicine and Science, Rochester, MN, USA
| | - Lilach O Lerman
- Division of Nephrology and Hypertension, Department of Medicine, Mayo Clinic College of Medicine and Science, Rochester, MN, USA
| | - Amir Lerman
- Division of Cardiovascular Diseases, Mayo Clinic College of Medicine and Science, Rochester, MN, USA
- Correspondence: Amir LermanDivision of Cardiovascular Diseases, Mayo Clinic College of Medicine and Science, 200 1st Street SW, Rochester, MN 55902, USATel +1 507 286 9040Email
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