scholarly journals Mediating Effects of High-density Lipoprotein for Alcohol Consumption and Myocardial Infarction: The Multi-Ethnic Study of Atherosclerosis (OR19-07-19)

2019 ◽  
Vol 3 (Supplement_1) ◽  
Author(s):  
Shue Huang ◽  
Xiang Gao ◽  
Shanshan Li ◽  
Gregory Shearer

Abstract Objectives The aim of this study was to investigate whether and to what extent the association between alcohol intake and incident myocardial infarction (MI) is mediated through high density lipoprotein cholesterol (HDL-C), and HDL particles (HDL-P). Methods A total of 6,704 participants from the Multi-Ethnic Study of Atherosclerosis were included in the analysis. Alcohol consumption information was assessed via a questionnaire at baseline (exam 1). HDL-C concentrations and HDL-P were both measured at exam 1. Cox regression was used to model the association of habitual alcohol intake and risk for MI before and after adjusting HDL-C and HDL-P, in addition to adjustment of all potential covariates. Mediated effects through HDL-C, and HDL-P were estimated using the causal mediation analysis. Results After a median of 8 years follow-up, 171 incident MI cases were documented. Alcohol intake was associated with a lower risk for incident MI (adjusted Hazard Ratio (HR) = 0.69, 95% Confidence Interval (CI): 0.50-0.95), relative to non-drinkers. The relation between alcohol intake and MI became nonsignificant after further adjusting HDL-P. The HRs of the indirect effect of alcohol through HDL-C and HDL-P were 0.97 (95% CI: 0.93, 1.01) (P = 0.16) and 0.94 (95% CI: 0.90, 0.99) (P = 0.02), indicating that on average, alcohol intake reduced the risk of MI by 6% through its effect on HDL-P and not through HDL-C. The proportion of the effect of alcohol on MI mediated by HDL-P was 14.6%. Conclusions This study indicates that the lower risk of MI related to alcohol intake appears to partially work through increasing HDL-P, however, the mechanism for much of alcohol's effect to reduce MI risk remains unexplained. This suggests that HDL-P can be a target for MI prevention, however the mediating effect of HDL-P is very moderate. Funding Sources N/A.

2019 ◽  
Vol 3 (Supplement_1) ◽  
Author(s):  
Shue Huang ◽  
Zhe Huang ◽  
Gregory Shearer ◽  
Shanshan Li ◽  
Shuohua Chen ◽  
...  

Abstract Objectives The aim of this study is to test the hypothesis that the lower risk of myocardial infarction (MI) associated with alcohol intake is through its effect on raising high-density lipoprotein (HDL) cholesterol. Methods This study included 81,827 Chinese men and women (mean age: 51 ± 12 yr.) from the Kailuan Study who were free of cardiovascular disease in 2006 (at baseline) and were followed up to Dec. 2016. At baseline, alcohol consumption was assessed via a questionnaire and the concentration of HDL cholesterol was measured. Incident MI at follow up was a first MI event, confirmed by medical record review. Multivariable Cox regression was used to model the association between habitual alcohol intake and risks of MI, adjusting for potential covariates including age, sex, education, monthly income, occupation, smoking status, physical activity, body mass index, waist circumferences, hypertension, diabetes and total cholesterol. Mediated effect through HDL cholesterol was assessed using a causal mediating analysis (SAS macro). Results During an average of 9.6 years of follow-up, we documented 1095 incident cases. The adjusted hazard ratio (HR) for MI was 0.64 (95% confidence interval (CI), 0.54–0.76) for current alcohol drinkers compared with never or former. The ratio changed very slightly, to 0.65 (95% CI, 0.55–0.76) after further adjustment of HDL cholesterol concentration. Mediation analysis showed that HDL cholesterol concentrations mediated a small, non-significant proportion (1.8%) of the effect of alcohol on MI. Conclusions Alcohol consumption was associated with a lower risk for MI incidence in a large Chinese cohort. Our results suggest that the benefits associated with moderate alcohol consumption is not related to the effects of alcohol on HDL cholesterol. Funding Sources Start-up grant from Penn State College of Health and Human Development, and Penn State CyberScience Seed Grant Program.


1993 ◽  
Vol 329 (25) ◽  
pp. 1829-1834 ◽  
Author(s):  
J. Michael Gaziano ◽  
Julie E. Buring ◽  
Jan L. Breslow ◽  
Samuel Z. Goldhaber ◽  
Bernard Rosner ◽  
...  

Circulation ◽  
2007 ◽  
Vol 116 (suppl_16) ◽  
Author(s):  
Linton R Harriss ◽  
Dallas R English ◽  
Rory Wolfe ◽  
Andrew M Tonkin ◽  
Kerin O’Dea ◽  
...  

Introduction: Alcohol intake is positively associated with high-density lipoprotein (HDL) cholesterol, however no studies have investigated the association with lipoprotein sub-classes using nuclear magnetic resonance spectroscopy (NMR). Hypothesis: We assessed the hypothesis that usual daily alcohol intake (volume), beverage type and drinking frequency influence plasma HDL sub-class concentrations as determined by NMR. Methods: Six hundred and ninety volunteers (389 women) aged 40 – 69 years at baseline (1990 –1994) participated in a cross-sectional study using the Melbourne Collaborative Cohort Study, Australia. Measures included self-reported alcohol intake using beverage-specific quantity-frequency questions (volume) and a drinking diary for previous week (frequency). Results: Median alcohol intake was 15.2 g/d (2.7, 32.0) for men and 1.0 g/d (0, 9.6) for women. Alcohol volume was positively associated with total HDL particle concentration in men and women. For men, a 10 g/d increment in alcohol intake increased total HDL particle concentration by 0.62 μmol/L (95% CI: 0.27, 0.98) and small HDL particle concentration by 0.34 μmol/L (0.01, 0.68). For women, total HDL particle concentration increased 1.06 μmol/L (0.60, 1.53) for every 10 g/d increment in alcohol intake. Alcohol volume was positively associated with large HDL particle concentration in premenopausal women [0.67 μmol/L (0.19, 1.15)] and small HDL particle concentration in postmenopausal women [0.82 μmol/L (0.14, 1.51)]. Beer, wine and spirits were all positively associated with total HDL concentration for men. Beer and wine were both positively associated with total HDL concentration for women. Drinking frequency was not associated with total HDL particle concentration or any of its’ sub-classes. Conclusions: Alcohol volume (and not drinking frequency) was positively associated with NMR-determined plasma total HDL particle concentration for men and women. These associations appeared to be regardless of beverage type, although comparison of beverage types was not possible for women. These results suggest that for any given weekly volume of alcohol, the number of drinking days does not influence HDL particle concentration.


2017 ◽  
Vol 9 (411) ◽  
pp. eaam6084 ◽  
Author(s):  
Sarah E. Heywood ◽  
Adele L. Richart ◽  
Darren C. Henstridge ◽  
Karen Alt ◽  
Helen Kiriazis ◽  
...  

Circulation ◽  
2014 ◽  
Vol 130 (suppl_2) ◽  
Author(s):  
Daniel Duprez ◽  
James Otvos ◽  
Kenneth Feingold ◽  
Philip Greenland ◽  
Myron D Gross ◽  
...  

In vitro studies have demonstrated that high density lipoprotein particles (HDL-P) antagonize inflammatory processes. We studied the predictive value of HDL-P and inflammatory markers for incident cardiovascular disease (CVD) and non-CVD, non-cancer, chronic inflammatory-related events. Methods: In the Multi-Ethnic Study of Atherosclerosis, we studied 6475 men and women free of overt CVD, baseline age 45-84 years, who had fasting venous samples for lipid profile, lipoprotein particles, and inflammatory markers Interleukin-6 (IL-6), hs-CRP and D-dimer at baseline. Median follow-up was 10.1 years. Poisson regression models predicted non-CVD, non-cancer, chronic inflammatory-related events (death and hospitalization), based on diagnostic codes, n=1054) and CVD events due to coronary heart disease, myocardial infarction, coronary artery disease requiring revascularization, stroke, peripheral arterial disease, congestive heart failure and CVD or unwitnessed death (adjudicated, n=756). Adjustment was for age, race, gender, clinic, heart rate, smoking, body mass index, blood pressure, blood pressure and lipid lowering medication, diabetes mellitus, plus all lipid, lipoprotein particle and inflammatory variables. Results: Non-CVD, non-cancer, chronic inflammatory-related events were inversely associated with the sum of small+medium HDL-P independent of covariates (relative risk (RR) per standard deviation (95% confidence limits), RR: 0.85 (0.79-0.91, P < 0.0001). Non-CVD, non-cancer, chronic inflammatory-related events were positively associated with IL-6, RR:1.19 (1.11-1.27, P < 0.0001) and D-dimer, RR: 1.10 (1.05-1.16, P < 0.0001). CVD was associated with small+medium HDL-P, RR: 0.90 (0.82-0.99, P < 0.03) and IL-6, RR:1.15 (1.06-1.25 P < 0.0001). hsCRP was unrelated to either outcome after adjustment for other inflammatory markers. Conclusion: The long-term inverse association of small+medium HDL-P with non-CVD, non-cancer, chronic inflammatory-related death and hospitalization was stronger than with fatal and non-fatal CVD in subjects initially free of overt CVD. These findings provide clinical evidence that small+medium HDL-P have anti-inflammatory properties and may rethink the importance of HDL-P beyond CVD.


Circulation ◽  
2012 ◽  
Vol 125 (suppl_10) ◽  
Author(s):  
Catherine Rahilly-Tierney ◽  
Howard D Sesso ◽  
J. Michael Gaziano ◽  
Luc Djousse

BACKGROUND: Few studies have examined prospectively the relationship between baseline high-density lipoprotein (HDL) cholesterol and longevity. OBJECTIVES: We sought to examine whether higher HDL levels were associated with lower risk of all-cause, cardiovascular (CVD), and non-CVD mortality prior to age 90 in the Physicians’ Health Study (PHS). METHODS: We considered a baseline cohort of 1351 PHS participants who provided bloods between 1997 and 2001 and were old enough to reach age 90 by March 4, 2009. Included subjects had complete baseline data on HDL and total cholesterol; lifestyle factors including smoking, exercise, alcohol consumption, and BMI; and comorbidities including hypertension, diabetes mellitus, congestive heart failure, cancer, and stroke. We used Cox proportional hazards to determine the HRs and 95% CIs for all-cause, CVD, and non-CVD mortality prior to age 90, adjusting for baseline age, co-morbidities, and non-HDL cholesterol. RESULTS: At baseline, the cohort had a mean (SD) age of 81.9 (2.9) years and a mean (SD) HDL cholesterol of 44.8(16.5) mg/dL. After a mean follow-up of 6.8 years (maximum 12.3 years), 501 (37.1%) of men died prior to age 90. In multi-variable adjusted analyses, men in the highest HDL-C quartile (≥54.1 mg/dL) had a 28% lower risk (HR 0.72, 95% CI 0.55-0.95) of all-cause mortality prior to age 90 compared to men in the lowest HDL-C quartile (<32.8 mg/dL). From the lowest to highest HDL quartile, age-adjusted HR(95%CI) for CVD mortality prior to age 90 were 0.66 (0.44-0.99), 0.58 (0.38-0.90), and 0.53 (0.34-0.82) (p for trend 0.004). There was no significant association between baseline HDL cholesterol and non-CVD death. CONCLUSION: In a cohort of older male physicians with long-term follow-up, baseline HDL cholesterol was inversely associated with the risk of dying prior to age 90, largely explained by an inverse association between HDL and CVD mortality.


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