Abstract 5085: Cardiovascular Risk Factors and Coronary Atherosclerosis in Retired National Football League Players: Implications for Coronary Risk of Large Body Size in Athletes

Circulation ◽  
2008 ◽  
Vol 118 (suppl_18) ◽  
Author(s):  
Alice Y Chang ◽  
Shannon J FitzGerald ◽  
John Cannaday ◽  
Song Zhang ◽  
Amit Patel ◽  
...  

A high prevalence of obesity exists among national football league (NFL) players as classified by body mass index (BMI). It has not been established whether this elevated BMI is associated with a greater prevalence of cardiovascular (CV) risk factors or coronary artery disease in former NFL players as in non-athletes. This study compared CV risk factors and subclinical coronary atherosclerosis among retired NFL players versus community controls. The design was a case-control study of retired NFL players against matched controls from the population-based Dallas Heart Study (DHS) and a second physically active sample from the Aerobics Center Longitudinal Study (ACLS). CV risk factors were assessed by survey and health screening visit. Coronary atherosclerosis was determined with computed tomography measurements of coronary artery calcium (CAC). 201 NFL players completed measurements of CAC. Compared to DHS men, retired NFL players had a significantly lower prevalence of diabetes, hypertension, a sedentary lifestyle and the metabolic syndrome, yet a higher prevalence of impaired fasting glucose and hyperlipidemia. However, there was no significant difference in the prevalence of positive CAC (46 v 48.3%, p=0.69) or the distribution across subgroups of CAC (0 –10, 10 –100, 100 – 400, 400+, p=0.11) between the retired NFL players and DHS men. These results were not significantly different when controlling for ethnicity or linemen status. When compared to physically active controls (ACLS), retired NFL players had a greater BMI, waist size and prevalence of the metabolic syndrome, but no difference in other CV risk factors or CAC scores. Conclusions: Despite their large body size, former NFL players do not have a greater prevalence of CV risk factors or amount of CAC than community controls when matched by BMI and/or age. Age and hyperlipidemia, not body size, were the most significant predictors of subclinical coronary atherosclerosis among retired NFL players. This research has received full or partial funding support from the American Heart Association, AHA National Center. CV Risk Factors, Retired NFL Players versus Dallas Heart Study Participants

Circulation ◽  
2020 ◽  
Vol 142 (Suppl_3) ◽  
Author(s):  
Nicholas Macpherson ◽  
Nestor Vasquez ◽  
Amit Khera ◽  
Anand Rohatgi ◽  
Seth S Martin ◽  
...  

Introduction: The Friedewald equation (F-LDL-C) and the Martin-Hopkins algorithm (MH-LDL-C) estimate direct LDL-C from a standard lipid panel. Discordant LDL-C estimates by the two methods may carry significant clinical implications. We evaluated the clinical variables associated with discordant LDL-C estimates and the association of discordance with risk of incident atherosclerotic cardiovascular disease (ASCVD) in the Dallas Heart Study (DHS), a multi-ethnic, population based prospective cohort. Methods: We estimated F-LDL-C and MH-LDL-C in 2824 DHS participants (42% male; mean age 43.5 years) with TG ≤ 400 mg/dL, who were not on baseline lipid lowering therapy and were free of prior ASCVD. We divided the cohort into quintiles of LDL-C discordance (MH-LDL-C minus F-LDL-C, in mg/dL) and assessed associations with ASCVD risk factors. We evaluated associations between discordance and incident ASCVD by sequentially adjusted Cox regression models, and we generated restricted cubic spline plots of discordance and hazard for ASCVD. Results: There were 228 ASCVD events over a median of 12.3 years. Clinical characteristics across discordance quintiles are shown in the Table . After adjustment for traditional ASCVD risk factors, there was a linear association between higher LDL-C discordance and increased risk of ASCVD events ( Figure ) with the highest hazard in Quintile 5 (HR 1.5, 95% CI 1.1 - 2.0). Conclusions: Discordant LDL-C estimates were largely associated with male sex, White and Hispanic races, and characteristics of the metabolic syndrome. Individuals in the highest quintile of discordant LDL-C estimates, with MH-LDL-C > F-LDL-C, had greater risk for incident ASCVD.


Circulation ◽  
2012 ◽  
Vol 125 (suppl_10) ◽  
Author(s):  
Tiffany M Powell ◽  
Colby R Ayers ◽  
James A de Lemos ◽  
Amit Khera ◽  
Susan G Lakoski ◽  
...  

Background: Concerning trends in weight gain from 2000-2009 exist in the Dallas Heart Study (DHS), a probability-based sample of Dallas County residents aged 30-65. However, the impact of significant weight gain (≥ 5% increase in body weight) on cardiovascular risk factors (CVRF) in this contemporary, multi-ethnic population is not known. Methods: We measured weight, LDL-c, blood pressure (SBP and DBP), and fasting glucose (FG) in 2,022 DHS participants (58% female) at study entry in 2000 and in 2009. Using logistic regression stratified by sex and race/ethnicity, we determined the age-adjusted odds of worsening CVRF (any increase in LDL-c, SBP, DBP or FG) for people who gained significant weight compared to those who did not. Results: Among women, 43% (N=500) gained significant weight, compared to 42% of men (N=355). Despite similar average weight gain (9.7±5.8 kg for women vs. 10±5.6 kg for men, p=0.4), women who gained significant weight had almost twice as large an increase in LDL-c (14±34 vs. 8±39 mg/dl, p=0.01) and SBP (12±18 vs. 6±19 mmHg, p<0.001) compared with men who gained significant weight. Increases in DBP (5±10 vs. 4±11 mmHg, p=0.05) and FG (4±29 vs. 2±32 mg/dl, p=0.30) were not significantly different between men and women. Among those with significant weight gain who were not on medications, SBP and LDL-c increases were higher in women compared with men (p<0.05). Differences in the amount of weight gained stratified by race and sex were modest (Table). Black women who gained significant weight were likely to have a worsening of all CVRF, while Hispanic women had the highest likelihood of having an increase in SBP associated with weight gain. In contrast, significant weight gain among men was not associated with worsening CVRF. Conclusions: Significant weight gain was associated with a deleterious impact on CVRF among women but not men. Disparate effects of weight gain between men and women highlight the importance of targeting aggressive weight control interventions toward women to help prevent adverse cardiac outcomes.


Circulation ◽  
2018 ◽  
Vol 137 (suppl_1) ◽  
Author(s):  
David A McNamara ◽  
Ari Bennett ◽  
Jarett D Berry ◽  
Mark S Link

Introduction: Recent studies have shown an association between early repolarization pattern (ERP) ECG morphology and sudden cardiac death. The role of left ventricular mass (LVM) as a potential mediator of ERP has not been well explored. Methods: Participants in the Dallas Heart Study who underwent an ECG and cardiac MRI (CMR) were assessed for ERP, defined as J-point elevation ≥1 mm in any 2 contiguous leads. We compared participants with and without ERP by age, gender, race/ethnicity, established cardiovascular risk factors of diabetes, hypertension and hyperlipidemia, lean body mass and percent body fat, and CMR-derived LVM, LVM/body surface area, and LVH defined by standard criteria, using Student’s T-tests and chi-squared tests where appropriate. Results: Of the 3,015 participants in our study, 276 (9.2%) had ERP. Participants with ERP were younger (43±9 vs 44±10 yrs, p=0.04), more prevalent in blacks than non-blacks (14 vs 5.0%, p<0.00001), and in men than women (18 vs 2.0%, p<0.00001). Baseline cardiovascular risk factors were not significantly different. Participants with ERP demonstrated higher lean body mass (59±10 vs 52±11 kg, p<0.00001) and lower percent body fat (27±8 vs 36±9%, p<0.00001). The presence of ERP was associated with greater LVM, increased LVM/body surface area, and the presence of LVH in the overall population and in analyses stratified by sex (Table 1). Conclusion: In a large, multi-ethnic cohort, ERP is associated with increased total LVM, increased LVM/body surface area, and LVH. These novel associations may provide insight into the biology of ERP. Further studies investigating the relationship of LVM and LVH with ERP are warranted.


Circulation ◽  
2020 ◽  
Vol 142 (Suppl_3) ◽  
Author(s):  
Kavisha Singh ◽  
Rina Mauricio ◽  
Wanpen Vongpatanasin ◽  
Katy Lonergan ◽  
Monika Sanghavi ◽  
...  

Introduction: The proximal aorta has been shown to enlarge with aging in humans, but the long-term impact of hormonal and hemodynamic changes associated with pregnancy on aortic size and function are unknown. We examined if number of live births was independently associated with aortic dimensions and stiffness in a healthy multi-ethnic population-based cohort, the Dallas Heart Study (DHS). We hypothesized that multiparity (>/=4 live births) is independently associated with aortic dilation and aortic stiffness after adjustment for CV risk factors. Methods: Women with available thoracic aortic MRI measurements (n=1468, mean 44.5 years old) from DHS were stratified based on self-reported number of live births (0,1,2,3,>/=4). Sequential multivariable logistic regression models were used to assess independent associations of the number of live births with ascending aortic cross-sectional area/height, aortic pulse wave velocity (PWV) and aortic compliance. Models were adjusted for major CV risk factors. Results: Women with >/=4 live births were older, more likely to be Black, and had higher blood pressure, triglycerides and body mass index. Compared with nulliparous women, women with >/=4 had larger ascending aortic areas indexed to height [5.19 vs 4.74 cm2/m; p<0.0001; Table 1]. After adjustment for risk factors, multiparity remained a significant predictor of aortic size. Compared to nulliparous women, women with >/=4 live births also had higher aortic PWV (5.54 vs 4.54 m/s; p<0.0001) and lower aortic compliance (21.9 vs 27.2 mL/mmHg; p 0.0002), but these relationships were no longer significant after multivariable adjustment (Table 1). Analyzing live births as a continuous variable did not change these results. Conclusions: Multiparity was associated with thoracic aortic enlargement, independent of age and relevant risk factors. Parity is an emerging sex-specific risk factor in cardiovascular disease that may have an impact on aortic remodeling in women.


2015 ◽  
Vol 35 (suppl_1) ◽  
Author(s):  
Preethi Mani ◽  
Ian J Neeland ◽  
Darren K McGuire ◽  
Colby Ayers ◽  
Amit Khera ◽  
...  

Objective: Metabolic syndrome (MetS) increases atherosclerotic cardiovascular disease (ASCVD) risk. Low HDL cholesterol (HDL-C) is a diagnostic criterion of MetS and a major ASCVD risk factor. HDL particle concentration (HDL-P) associates with incident ASCVD independent of HDL-C, but its association with incident MetS has not been studied. We hypothesized that HDL-P would be inversely associated with incident metabolic syndrome independent of HDL-C and other recognized risk factors. Methods: HDL-P was measured by NMR and visceral fat by MRI in participants of the Dallas Heart Study, a probability-based population sample of adults age 30-65. Participants with prevalent MetS, DM, CVD, cirrhosis, cancer, HIV, or renal failure were excluded. Incident MetS as defined by NCEP ATPIII criteria was determined in all participants after median follow-up period of 9.4 years. Results: Among a cohort of 1120 participants without DM or MetS at baseline (57% women, 45% Black, mean age 43), 22.8% had incident MetS at follow-up. HDL-P and HDL-C were modestly correlated (r=0.54, p<0.0001). The lowest quartile of HDL-P was associated with younger age, men, Hispanic ethnicity, lower total, HDL, and LDL cholesterol levels and particle sizes, and less reported alcohol intake. Participants in the lowest sex and race stratified quartile of HDL-P had the highest incidence of MetS (Figure). In models adjusted for traditional risk factors, HDL-C, visceral fat, HOMA-IR, and hs-CRP, the lowest quartile of HDL-P was associated with 65% increased risk of incident MetS (Figure). Conclusion: HDL-P is independently associated with incident MetS after adjustment for HDL-C, adiposity, inflammation, and markers of insulin sensitivity. Further studies are warranted to validate these findings and elucidate the mechanisms underpinning this association.


2009 ◽  
Vol 104 (6) ◽  
pp. 805-811 ◽  
Author(s):  
Alice Y. Chang ◽  
Shannon J. FitzGerald ◽  
John Cannaday ◽  
Song Zhang ◽  
Amit Patel ◽  
...  

2013 ◽  
Vol 59 (3) ◽  
pp. 536-546 ◽  
Author(s):  
Lu Q Chen ◽  
James A de Lemos ◽  
Sandeep R Das ◽  
Colby R Ayers ◽  
Anand Rohatgi

BACKGROUND ST2, part of the interleukin-1 receptor family, is released from cardiac myocytes under mechanical strain. Soluble ST2 (sST2) concentrations are associated with adverse cardiac events in high-risk cohorts. We evaluated the association of sST2 with all-cause and cardiovascular mortality in a large, low-risk population–based cohort. METHODS Plasma sST2 was measured in 3294 subjects from the Dallas Heart Study, a probability-based population cohort. We categorized participants into undetectable (reference group) or quartiles of detectable sST2 concentrations. Associations with all-cause and cardiovascular mortality were assessed over a median 8.3 years of follow-up. RESULTS sST2 concentrations were not significantly associated with most traditional risk factors, prevalent subclinical cardiovascular disease, or nonfatal cardiac events. However, a higher proportion of African Americans had detectable concentrations of sST2 than non–African Americans (44% vs 21%, respectively, P &lt; 0.0001). In addition, sST2 concentrations were significantly associated with markers of inflammation. Increased sST2 was associated with increased all-cause mortality (Ptrend ≤ 0.0001) and cardiovascular mortality (Ptrend = 0.0004). In fully adjusted models, those in the highest quartile of detectable sST2 were at increased risk for all-cause death compared to those with undetectable sST2 concentrations (adjusted hazard ratio 2.1, 95% CI 1.4–3.2, P = 0.0009). CONCLUSIONS In a low-risk population, sST2 does not associate with traditional cardiovascular risk factors or nonfatal cardiovascular events but is higher in African Americans and is associated with increased all-cause and cardiovascular mortality. Further investigation is needed regarding the role of sST2 in risk prediction, particularly among African Americans.


2014 ◽  
Vol 32 (3_suppl) ◽  
pp. 184-184
Author(s):  
Muhammad Shaalan Beg ◽  
Amit G. Singal ◽  
Colby Ayers ◽  
Sadia Saleem ◽  
Jorge A. Marrero ◽  
...  

184 Background: The I148M polymorphism (rs738409) of the patatin-like phospholipase domain-containing 3 (PNPLA3) gene is strongly associated with hepatic triglyceride content (HTGC) and the development of nonalcoholic fatty liver disease (NAFLD) and steatohepatitis (NASH), which are themselves risk factors for hepatocellular cancer (HCC). Serum adiponectin affects insulin resistance and carcinogenesis and has also been associated with HTGC. Whether these risk factors are additive in predisposing to HTGC is unknown. We evaluated the impact of adiponectin and PNPLA3 genotypes on HTGC in a large community cohort. Methods: The Dallas Heart Study (DHS) is a multi-ethnic population based study of Dallas County residents. HTGC was quantified using H-MR spectroscopy. Univariate and multivariable logistic and linear regression models were generated to test the association between HTGC and log adiponectin stratified by PNPLA3 genotype (CC, CG and GG). Models were adjusted for age, gender, race, hypertension, diabetes, HOMA-IR and BMI. Results: There were 2,259 patients who had complete clinical, biochemical, imaging, and genotyping data and were included in this analysis. Median age was 44 and 47% were male. Race distribution was 48% Black, 32% White, and 18% Hispanic. The prevalences of PNPLA3 genotypes were 61% CC (wild type), 32% GC and 7% GG. The median concentration of adiponectin was 6.6 ug/ml. Adiponectin was an independent predictor HTCG across all genotypes after adjusting for covariates (CC b=-0.34, GC b=-0.42, GG b=-0.38, p<0.005 for each). HTGC decreased across gender and race-stratified quartiles of adiponectin for each PNPLA3 genotype, and the qualitative effect was greatest in the I148M homozygotes (table). Conclusions: Adiponectin is independently associated with hepatic steatosis across all three PNPLA3 genotypes. The combination of at-risk PNPLA3 genotypes and hypoadiponectemia is associated with a high risk of hepatic steatosis. Future studies will need to address downstream HCC risk and whether manipulation of adiponectin level may be of clinical benefit. [Table: see text]


Sign in / Sign up

Export Citation Format

Share Document