Marijuana use is increasing as more states are legalizing cannabis for both medicinal and recreational purposes. National survey data estimate that >2 million Americans with established cardiovascular diseases currently use or have used marijuana in its variety of forms, including inhalation and vaping. Cannabinoid receptors are distributed in multiple tissue beds and cells, including platelets,… Continue reading #Marijuana Use in Patients With #Cardiovascular Disease: JACC Review Topic of the Week
Category: Cardiology
High-#protein diets increase #cardiovascular risk by activating macrophage mTOR to suppress mitophagy
High-protein diets are commonly utilized for weight loss, yet they have been reported to raise cardiovascular risk. The mechanisms underlying this risk are unknown. Here, we show that dietary protein drives atherosclerosis and lesion complexity. Protein ingestion acutely elevates amino acid levels in blood and atherosclerotic plaques, stimulating macrophage mammalian target of rapamycin (mTOR) signalling.… Continue reading High-#protein diets increase #cardiovascular risk by activating macrophage mTOR to suppress mitophagy
Effects of #Caffeine and Acute Aerobic #Exercise on Working Memory and Caffeine Withdrawal
Studies show that a single bout of exercise confers cognitive benefits. However, many individuals use psychoactive substances such as caffeine to enhance cognitive performance.. The objectives of this study were to compare the effects of acute moderate intensity aerobic exercise to caffeine on working memory (WM) and caffeine withdrawal symptoms (CWS). In Phase I, non-caffeine… Continue reading Effects of #Caffeine and Acute Aerobic #Exercise on Working Memory and Caffeine Withdrawal
Five-Year Outcomes of Transcatheter or Surgical #Aortic-Valve Replacement
..At 5 years, there was no significant difference in the incidence of death from any cause or disabling stroke between the TAVR group and the surgery group (47.9% and 43.4%, respectively; hazard ratio, 1.09; 95% confidence interval [CI], 0.95 to 1.25; P=0.21). Results were similar for the transfemoral-access cohort (44.5% and 42.0%, respectively; hazard ratio,… Continue reading Five-Year Outcomes of Transcatheter or Surgical #Aortic-Valve Replacement
Temporal Changes in Resting #Heart Rate, Left Ventricular Dysfunction, Heart #Failure and Cardiovascular Disease: CARDIA Study
..Higher alcohol consumption (β=0.03, p<0.001), lower physical activity (β=0.002,p=001), smoking (β=1.58, p<0.001), men (p<0.001), African-Americans (p<0.001), impaired left ventricular relaxation (e´,β=-0.13, p=0.002), and worse diastolic function (E/e´,β=0.1, p=0.01) were associated with longitudinal increases in resting heart rate. We observed 268 cardiovascular disease and 74 heart failure events over a median of 26 years. In Cox… Continue reading Temporal Changes in Resting #Heart Rate, Left Ventricular Dysfunction, Heart #Failure and Cardiovascular Disease: CARDIA Study
Association of Isolated Diastolic #Hypertension as Defined by the 2017 ACC/AHA Blood Pressure Guideline With Incident Cardiovascular Outcomes
..the definition of hypertension was lowered from a blood pressure (BP) of greater than or equal to 140/90 to greater than or equal to 130/80 mm Hg. The new diastolic BP threshold of 80 mm Hg was recommended based on expert opinion and changes the definition of isolated diastolic hypertension (IDH). atherosclerotic cardiovascular disease (ASCVD)… Continue reading Association of Isolated Diastolic #Hypertension as Defined by the 2017 ACC/AHA Blood Pressure Guideline With Incident Cardiovascular Outcomes
Implications of Abnormal Exercise Electrocardiography With Normal Stress Echocardiography
..After excluding submaximal tests and nondiagnostic ECG or stress imaging results, 15 077 patients (mean [SD] age, 52 [13] years; 6228 [41.3%] men) were classified by stress test results Death occurred in 425 patients with −ECG/−Echo (4.8%), 50 patients with +ECG/−Echo (5.9%), and 70 patients with +Echo (11.2%). Myocardial infarction occurred in 195 patients with −ECG/−Echo… Continue reading Implications of Abnormal Exercise Electrocardiography With Normal Stress Echocardiography
Abdominal #obesity and the risk of recurrent atherosclerotic cardiovascular disease after myocardial #infarction
..Univariate and multivariable-adjusted Cox regression models were used to calculate hazard ratios and 95% confidence intervals in quintiles of waist circumference as well as three categories of body mass index including normal weight, overweight and obesity. Results The majority of patients had abdominal obesity. During a median follow-up time of 3.8 years, 1232 men (7.3%)… Continue reading Abdominal #obesity and the risk of recurrent atherosclerotic cardiovascular disease after myocardial #infarction
#Walnuts and Vegetable Oils Containing Oleic Acid Differentially Affect the Gut Microbiota and Associations with #Cardiovascular Risk Factors: Follow-up of a Randomized, Controlled, Feeding Trial in Adults at Risk for Cardiovascular Disease
..Forty-two adults at cardiovascular risk were included in a randomized, crossover, controlled-feeding trial that provided a 2-wk standard Western diet (SWD) run-in and three 6-wk isocaloric study diets: a diet containing whole walnuts (WD; 57–99 g/d walnuts; 2.7% ALA), a fatty acid–matched diet devoid of walnuts (walnut fatty acid–matched diet; WFMD; 2.6% ALA), and a… Continue reading #Walnuts and Vegetable Oils Containing Oleic Acid Differentially Affect the Gut Microbiota and Associations with #Cardiovascular Risk Factors: Follow-up of a Randomized, Controlled, Feeding Trial in Adults at Risk for Cardiovascular Disease
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