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Hezekiah C, Blakemore AI, Bailey DP, Pazoki R. Physical activity alters the effect of genetic determinants of adiposity on hypertension among individuals of European ancestry in the UKB. Scand J Med Sci Sports 2024; 34:e14636. [PMID: 38671551 PMCID: PMC11135603 DOI: 10.1111/sms.14636] [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: 01/25/2024] [Revised: 03/30/2024] [Accepted: 04/09/2024] [Indexed: 04/28/2024]
Abstract
Hypertension is a leading risk factor for cardiovascular disease and is modulated by genetic variants. This study aimed to assess the effect of obesity genetic liability and physical activity on hypertension among European and African ancestry individuals within the UK Biobank (UKB). Participants were 230 115 individuals of European ancestry and 3239 individuals of African ancestry from UKB. Genetic liability for obesity were estimated using previously published data including genetic variants and effect sizes for body mass index (BMI), waist-hip ratio (WHR) and waist circumference (WC) using Plink software. The outcome was defined as stage 2 hypertension (systolic blood pressure ≥ 140 mmHg, diastolic blood pressure ≥90 mmHg, or the use of anti-hypertensive medications). The association between obesity genetic liability and the outcome was assessed across categories of self-reported physical activity using logistic regression. Among European ancestry participants, there was up to a 1.2 greater odds of hypertension in individuals with high genetic liability and low physical activity compared to individuals with low genetic liability and high physical activity (p < 0.001). In individuals engaging in low levels of physical activity compared with moderate/high physical activity, the effect of BMI genetic liability on hypertension was greater (p interaction = 0.04). There was no evidence of an association between obesity genetic liability and hypertension in individuals of African ancestry in the whole sample or within separate physical activity groups (p > 0.05). This study suggests that higher physical activity levels are associated with lower odds of stage 2 hypertension among European ancestry individuals who carry high genetic liability for obesity. This cannot be inferred for individuals of African ancestry, possibly due to the low African ancestry sample size within the UKB.
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Affiliation(s)
- Chukwueloka Hezekiah
- Cardiovascular and Metabolic Research Group, Division of Biomedical Sciences, Department of Life Sciences, College of Health, Medicine and Life SciencesBrunel University LondonLondonUK
- Department of Mental Health, Faculty of Health, Science, Social Care and EducationKingston UniversitySurreyUK
| | - Alexandra I. Blakemore
- Department of Life Sciences, Centre for Cognitive Neuroscience, College of Health, Medicine and Life SciencesBrunel University LondonLondonUK
- Department of MetabolismDigestion and Reproduction, Imperial College LondonLondonUK
- School of MedicineUniversity of IrelandGalwayIreland
| | - Daniel P. Bailey
- Centre for Physical Activity in Health and Disease, College of Health, Medicine and Life SciencesBrunel University LondonUxbridgeUK
- Division of Sport, Health and Exercise Sciences, Department of Life SciencesBrunel University LondonUxbridgeUK
| | - Raha Pazoki
- Cardiovascular and Metabolic Research Group, Division of Biomedical Sciences, Department of Life Sciences, College of Health, Medicine and Life SciencesBrunel University LondonLondonUK
- Department of Epidemiology and Biostatistics, School of Public HealthImperial College LondonLondonUK
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Rosano C, Karikari TK, Cvejkus R, Bellaver B, Ferreira PCL, Zmuda J, Wheeler V, Pascoal TA, Miljkovic I. Sex differences in Alzheimer's disease blood biomarkers in a Caribbean population of African ancestry: The Tobago Health Study. ALZHEIMER'S & DEMENTIA (NEW YORK, N. Y.) 2024; 10:e12460. [PMID: 38617114 PMCID: PMC11010267 DOI: 10.1002/trc2.12460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 02/02/2024] [Accepted: 02/09/2024] [Indexed: 04/16/2024]
Abstract
INTRODUCTION Alzheimer's disease (AD) is increasing in the Caribbean, especially for persons of African ancestry (PAA) and women. However, studies have mostly utilized surveys without AD biomarkers. METHODS In the Tobago Health Study (n = 309; 109 women, mean age 70.3 ± 6.6), we assessed sex differences and risk factors for serum levels of phosphorylated tau-181 (p-tau181), amyloid-beta (Aβ)42/40 ratio, glial fibrillary acidic protein (GFAP), and neurofilament light chain (NfL). Blood samples were from 2010 to 2013 for men and from 2019 to 2023 for women. RESULTS Women were more obese, hypertensive, and sedentary but reported less smoking and alcohol use than men (age-adjusted p < 0.04). Compared to men, women had worse levels of AD biomarkers, with higher p-tau181 and lower Aβ42/40, independent of covariates (p < 0.001). In sex-stratified analyses, higher p-tau181 was associated with older age in women and with hypertension in men. GFAP and NfL did not differ by sex. DISCUSSION Women had worse AD biomarkers than men, unexplained by age, cardiometabolic diseases, or lifestyle. Studying risk factors for AD in PAA is warranted, especially for women earlier in life.
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Affiliation(s)
- Caterina Rosano
- Department of EpidemiologySchool of Public HealthUniversity of PittsburghPittsburghPennsylvaniaUSA
| | - Thomas K. Karikari
- Department of PsychiatryUniversity of PittsburghPittsburghPennsylvaniaUSA
- Department of Psychiatry and NeurochemistryInstitute of Neuroscience and PhysiologyThe Sahlgrenska AcademyUniversity of GothenburgGothenburgSweden
| | - Ryan Cvejkus
- Department of EpidemiologySchool of Public HealthUniversity of PittsburghPittsburghPennsylvaniaUSA
| | - Bruna Bellaver
- Department of PsychiatryUniversity of PittsburghPittsburghPennsylvaniaUSA
| | | | - Joseph Zmuda
- Department of EpidemiologySchool of Public HealthUniversity of PittsburghPittsburghPennsylvaniaUSA
| | - Victor Wheeler
- Tobago Health Studies OfficeScarboroughTobagoTrinidad and Tobago
| | - Tharick A. Pascoal
- Department of NeurologySchool of MedicineUniversity of PittsburghPittsburghPennsylvaniaUSA
| | - Iva Miljkovic
- Department of EpidemiologySchool of Public HealthUniversity of PittsburghPittsburghPennsylvaniaUSA
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Norha J, Sjöros T, Garthwaite T, Laine S, Saarenhovi M, Kallio P, Laitinen K, Houttu N, Vähä-Ypyä H, Sievänen H, Löyttyniemi E, Vasankari T, Knuuti J, Kalliokoski KK, Heinonen IHA. Effects of reduced sedentary time on resting, exercise and post-exercise blood pressure in inactive adults with metabolic syndrome - a six-month exploratory RCT. J Hum Hypertens 2024; 38:314-321. [PMID: 38267651 PMCID: PMC11001575 DOI: 10.1038/s41371-024-00894-6] [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: 06/16/2023] [Revised: 01/09/2024] [Accepted: 01/11/2024] [Indexed: 01/26/2024]
Abstract
Evidence on the long-term effects of reducing sedentary behaviour (SB) on blood pressure (BP) is scarce. Therefore, we performed a sub-analysis of the BP effects of a six-month intervention that aimed at reducing SB by 1 h/day and replacing it with non-exercise activities. Sixty-four physically inactive and sedentary adults with metabolic syndrome (58% female, 58 [SD 7] years, BP 143/88 [16/9] mmHg, SB 10 [1] h/day) were randomised into intervention (INT, n = 33) and control (CON, n = 31) groups. Resting BP and BP at each stage during and after a graded maximal bicycle ergometer test were measured before and after the intervention. SB, standing, moderate-to-vigorous physical activity (MVPA), and light physical activity (LPA) were measured in six-second intervals at baseline and during the whole six-month intervention using hip-worn accelerometers. The analyses were adjusted for BP medication status. The intervention resulted in a 40 min/day reduction in SB and concomitant 20 min/day increase in MVPA. Resting systolic BP was lower in the CON group before and after the intervention. No group x time interactions were observed in resting BP or BP during exercise at submaximal or maximal intensities, or during recovery. The changes in LPA and MVPA were inversely correlated with the changes in BP during light-to-moderate intensity exercise. An intervention that resulted in a 40 min/day reduction in SB for six months was not sufficient at influencing BP at rest, during or after exercise in adults with metabolic syndrome. However, successfully increasing LPA or MVPA might lower BP during light-to-moderate-intensity activities.
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Affiliation(s)
- Jooa Norha
- Turku PET Centre, University of Turku and Turku University Hospital, Turku, Finland.
| | - Tanja Sjöros
- Turku PET Centre, University of Turku and Turku University Hospital, Turku, Finland
| | - Taru Garthwaite
- Turku PET Centre, University of Turku and Turku University Hospital, Turku, Finland
| | - Saara Laine
- Turku PET Centre, University of Turku and Turku University Hospital, Turku, Finland
| | - Maria Saarenhovi
- Department of Clinical Physiology and Nuclear Medicine, University of Turku and Turku University Hospital, Turku, Finland
| | - Petri Kallio
- Department of Clinical Physiology and Nuclear Medicine, University of Turku and Turku University Hospital, Turku, Finland
- Paavo Nurmi Centre and Unit for Health and Physical Activity, University of Turku, Turku, Finland
| | - Kirsi Laitinen
- Institute of Biomedicine, University of Turku, Turku, Finland
| | - Noora Houttu
- Institute of Biomedicine, University of Turku, Turku, Finland
| | - Henri Vähä-Ypyä
- The UKK Institute for Health Promotion Research, Tampere, Finland
| | - Harri Sievänen
- The UKK Institute for Health Promotion Research, Tampere, Finland
| | - Eliisa Löyttyniemi
- Department of Biostatistics, University of Turku and Turku University Hospital, Turku, Finland
| | - Tommi Vasankari
- The UKK Institute for Health Promotion Research, Tampere, Finland
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Juhani Knuuti
- Turku PET Centre, University of Turku and Turku University Hospital, Turku, Finland
| | - Kari K Kalliokoski
- Turku PET Centre, University of Turku and Turku University Hospital, Turku, Finland
| | - Ilkka H A Heinonen
- Turku PET Centre, University of Turku and Turku University Hospital, Turku, Finland
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Acevedo-Fontánez AI, Cvejkus RK, Zmuda JM, Kuipers AL, Barinas-Mitchell E, Sekikawa A, Wheeler V, Rosano C, Miljkovic I. Skeletal muscle adiposity is a novel risk factor for poor cognition in African Caribbean women. Obesity (Silver Spring) 2023; 31:2398-2406. [PMID: 37475604 PMCID: PMC10680092 DOI: 10.1002/oby.23816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 05/05/2023] [Accepted: 05/08/2023] [Indexed: 07/22/2023]
Abstract
OBJECTIVE Skeletal muscle adiposity (myosteatosis) is recognized as a major risk factor for cardiometabolic diseases, and it increases with aging. The relationship of myosteatosis with cognitive impairment is unknown. METHODS The association of calf myosteatosis (measured by computed tomography-derived skeletal muscle density; higher values indicate less myosteatosis) with cognitive function was examined among 626 African Caribbean women who were aged 40 to 84 years, a population highly vulnerable to increased myosteatosis. Cognition was assessed by the Digit Symbol Substitution Test (DSST), a test of information processing speed (higher scores indicate better performance). Linear regression was used to assess the association of muscle density with DSST. RESULTS Adjusting for age, education, muscle area, BMI, hypertension, diabetes, cardiovascular event history, lifestyle factors, lipid-lowering medication use, and menopausal status, a one-SD lower muscle density was associated with a 1.69-point lower DSST score (p = 0.002). BMI, diabetes, and hypertension interactions were not statistically significant, suggesting that the main association was not moderated by overall obesity or cardiometabolic diseases. CONCLUSIONS These findings suggest that greater myosteatosis is associated with slower information processing speed, an early indicator of cognitive impairment. Further studies are needed to establish this association in this and other populations using an expanded battery of cognitive tests with longitudinal follow-up and to identify the biological mechanisms underlying this relationship.
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Affiliation(s)
| | - Ryan K. Cvejkus
- Department of Epidemiology, University of Pittsburgh, Pi ttsburgh, PA, USA
| | - Joseph M. Zmuda
- Department of Epidemiology, University of Pittsburgh, Pi ttsburgh, PA, USA
| | - Allison L Kuipers
- Department of Epidemiology, University of Pittsburgh, Pi ttsburgh, PA, USA
| | | | - Akira Sekikawa
- Department of Epidemiology, University of Pittsburgh, Pi ttsburgh, PA, USA
| | - Victor Wheeler
- Tobago Health Studies Office, Scarborough, Tobago, Trinidad & Tobago
| | - Caterina Rosano
- Department of Epidemiology, University of Pittsburgh, Pi ttsburgh, PA, USA
| | - Iva Miljkovic
- Department of Epidemiology, University of Pittsburgh, Pi ttsburgh, PA, USA
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Larsen SC, O'Driscoll R, Horgan G, Mikkelsen MLK, Specht IO, Rohde JF, Turicchi J, Santos I, Encantado J, Duarte C, Ward LC, Palmeira AL, Stubbs RJ, Heitmann BL. Substituting sedentary time with sleep or physical activity and subsequent weight-loss maintenance. Obesity (Silver Spring) 2023; 31:515-524. [PMID: 36575137 PMCID: PMC10108206 DOI: 10.1002/oby.23631] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 09/21/2022] [Accepted: 09/22/2022] [Indexed: 12/29/2022]
Abstract
OBJECTIVE In this study, the associations between the substitution of sedentary time with sleep or physical activity at different intensities and subsequent weight-loss maintenance were examined. METHODS This prospective study included 1152 adults from the NoHoW trial who had achieved a successful weight loss of ≥5% during the 12 months prior to baseline and had BMI ≥25 kg/m2 before losing weight. Physical activity and sleep were objectively measured during a 14-day period at baseline. Change in body weight was included as the primary outcome. Secondary outcomes were changes in body fat percentage and waist circumference. Cardiometabolic variables were included as exploratory outcomes. RESULTS Using isotemporal substitution models, no associations were found between activity substitutions and changes in body weight or waist circumference. However, the substitution of sedentary behavior with moderate-to-vigorous physical activity was associated with a decrease in body fat percentage during the first 6 months of the trial (-0.33% per 30 minutes higher moderate-to-vigorous physical activity [95% CI: -0.60% to -0.07%], p = 0.013). CONCLUSIONS Sedentary behavior had little or no influence on subsequent weight-loss maintenance, but during the early stages of a weight-loss maintenance program, substituting sedentary behavior with moderate-to-vigorous physical activity may prevent a gain in body fat percentage.
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Affiliation(s)
- Sofus C Larsen
- Research Unit for Dietary Studies, The Parker Institute, Bispebjerg and Frederiksberg Hospital, Frederiksberg, Denmark
| | - Ruairi O'Driscoll
- School of Psychology, Faculty of Medicine and Health, University of Leeds, Leeds, UK
| | - Graham Horgan
- Biomathematics and Statistics Scotland, Aberdeen, UK
| | - Marie-Louise K Mikkelsen
- Research Unit for Dietary Studies, The Parker Institute, Bispebjerg and Frederiksberg Hospital, Frederiksberg, Denmark
| | - Ina O Specht
- Research Unit for Dietary Studies, The Parker Institute, Bispebjerg and Frederiksberg Hospital, Frederiksberg, Denmark
| | - Jeanett F Rohde
- Research Unit for Dietary Studies, The Parker Institute, Bispebjerg and Frederiksberg Hospital, Frederiksberg, Denmark
| | - Jake Turicchi
- School of Psychology, Faculty of Medicine and Health, University of Leeds, Leeds, UK
| | - Inês Santos
- CIDEFES, Universidade Lusófona, Lisbon, Portugal
| | | | - Cristiana Duarte
- School of Education, Language and Psychology, York St John University, York, UK
| | - Leigh C Ward
- School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane, Queensland, Australia
| | | | - R James Stubbs
- School of Psychology, Faculty of Medicine and Health, University of Leeds, Leeds, UK
| | - Berit L Heitmann
- Research Unit for Dietary Studies, The Parker Institute, Bispebjerg and Frederiksberg Hospital, Frederiksberg, Denmark
- The Boden Institute of Obesity, Nutrition, Exercise & Eating Disorders, The University of Sydney, Sydney, New South Wales, Australia
- Department of Public Health, Section for General Practice, University of Copenhagen, Copenhagen, Denmark
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Marron MM, Cvejkus RK, Acevedo-Fontanez AI, Kuipers AL, Nair S, Carr JJ, Terry JG, Wheeler V, Miljkovic I. Replacing sedentary time with light activity was associated with less adiposity across several depots in African ancestry men. Obesity (Silver Spring) 2022; 30:2489-2496. [PMID: 36415998 PMCID: PMC9832382 DOI: 10.1002/oby.23582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Revised: 07/28/2022] [Accepted: 08/08/2022] [Indexed: 11/24/2022]
Abstract
OBJECTIVE The aim of this study was to determine whether displacement of sedentary time with activity was cross-sectionally associated with less adiposity among Black Caribbean men in the Tobago Health Study. METHODS Objectively assessed activity was categorized as sedentary (< 1.5 metabolic equivalents; METs), light (≥ 1.5 to < 3.0 METs), or moderate-to-vigorous (≥ 3.0 METs) using the SenseWear Pro armband. Computed tomography scans of the chest, abdomen, liver, and thigh were used to assess subcutaneous and ectopic adipose tissue. The isotemporal substitution framework paired with linear regression was used to examine associations between activity and adiposity adjusting for age, height, total awake time, and multiple comparisons. RESULTS On average, participants (n = 271) were 63 years old with 11.2 h/d of sedentary behavior, 4.5 h/d of light activity, and 54 min/d of moderate-to-vigorous activity. Replacing sedentary time with light activity was cross-sectionally associated with lower volume and higher density of abdominal and thigh subcutaneous adiposity, visceral adiposity, abdominal and thigh intermuscular adiposity, and pericardial adiposity and higher liver attenuation (p values ≤ 0.0001). CONCLUSIONS Displacement of sedentary time with light activity was associated with less adiposity among this Black Caribbean cohort. Interventions focused on increasing light activity may be easier to maintain than higher intensity interventions and thus may be more successful at reducing adiposity.
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Affiliation(s)
- Megan M. Marron
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Ryan K. Cvejkus
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Adrianna I. Acevedo-Fontanez
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Allison L. Kuipers
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Sangeeta Nair
- Department of Radiology & Radiological Sciences, Vanderbilt University Medicine Center, Nashville, Tennessee, USA
| | - John Jeffrey Carr
- Department of Radiology & Radiological Sciences, Vanderbilt University Medicine Center, Nashville, Tennessee, USA
| | - James G. Terry
- Department of Radiology & Radiological Sciences, Vanderbilt University Medicine Center, Nashville, Tennessee, USA
| | - Victor Wheeler
- Tobago Health Studies Office, Scarborough, Trinidad and Tobago
| | - Iva Miljkovic
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
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Kuipers AL, Carr JJ, Terry JG, Nair S, Barinas-Mitchell E, Wheeler V, Zmuda JM, Miljkovic I. Aortic Area as an Indicator of Subclinical Cardiovascular Disease. Open Cardiovasc Med J 2022. [DOI: 10.2174/18741924-v16-e2203100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Aim:
Outward arterial remodeling occurs early in cardiovascular disease (CVD) and, as such, measuring arterial dimension may be an early indicator of subclinical disease.
Objective:
The objective of our study was to measure area at three aortic locations: The ascending thoracic (ASC), the descending thoracic (DSC), and the abdominal (ABD), and to test for association with traditional CVD risk factors and subclinical CVD throughout the body.
Methods:
We measured ASC, DSC, and ABD using computed tomography (CT) in 408 African ancestry men aged 50-89 years. We assessed prevalent CVD risk factors via participant interview and clinical exam, and subclinical CVD, including carotid atherosclerosis through B-mode carotid ultrasound, vascular calcification via chest and abdominal CT, and arterial stiffness via pulse-wave velocity (PWV).
Results:
As expected, all aortic areas were in correlation with each other (r=0.39-0.63, all p<0.0001) and associated with greater age, greater body size, and hypertension (p≤0.01 for all). After adjustment for traditional CVD risk factors, ASC was positively associated with carotid atherosclerosis (p<0.01). A greater area at each location was associated with greater PWV (p<0.03 for all), with the DSC region showing the most significant association.
Conclusion:
This is the first study to test the association of aortic area measured at multiple points with subclinical CVD. We found that combined CT assessment of ascending and descending aortic area may indicate a high risk of prevalent subclinical CVD elsewhere in the body independent of age, body size, and blood pressure.
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