How Air Pollution Gets Into The Bloodstream And Damages The Heart

Inhaled nanoparticles like those pumped out in vehicle exhausts can work their way through the lungs and into the bloodstream where they can raise the risk of heart attack and stroke, scientists said on Wednesday. In experiments using harmless ultra-fine particles of gold, the scientists were able for the first time to track how such nanoparticles are breathed in, pass through the lungs and then gain access to the blood. Most worryingly, the researchers said at a briefing in London, the nanoparticles tend to build up in damaged blood vessels of people who already suffer from coronary heart disease – the condition that causes heart attacks - and make it worse. “There is no doubt that air pollution is a killer, and this study brings us a step closer to solving the mystery of how air pollution damages our cardiovascular health,” said Jeremy Pearson, a professor and associate medical director at the British Heart Foundation charity, which part-funded the study. Experts have long known that air pollution carries serious health risks and can trigger fatal heart attacks and strokes. According to the World Health Organization, outdoor air pollution in both cities and rural areas was estimated to cause 3.0 million premature deaths worldwide in 2012. But until now, scientists had not been sure how particles inhaled into the lungs go on to affect heart health. The new findings, published on Wednesday in the journal ACS Nano, build on previous evidence and show tha...
Source: Healthy Living - The Huffington Post - Category: Consumer Health News Source Type: news

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For nearly two decades, the American Heart Association (AHA) has recommended that people with coronary heart disease (CHD) consume omega-3-fatty acids (the kinds of fatty acids found in fish and fish oil) to prevent another heart attack. This recommendation was based on early randomized, controlled trials, which found that fish oil supplementation was associated with lower rates of stroke, heart attack, and death in people who already had heart disease. On the other hand, the impact of fish oil supplements on preventing a first heart attack or stroke (primary prevention) was never clearly demonstrated. Recently there have ...
Source: Harvard Health Blog - Category: Consumer Health News Authors: Tags: Drugs and Supplements Health Heart Health Nutrition Source Type: blogs
AbstractBackgroundPatients with NAFLD are considered at a high risk of cardiovascular events due to underlying metabolic risk factors. Currently, data related to the impact of NAFLD on cardiovascular risk in the general population are lacking.AimsThe aim of this study was to investigate the role of NAFLD on risk of myocardial infarction (MI), coronary heart disease (CHD), atrial fibrillation (AF), and stroke in primary care in Germany.MethodsThe study included patients diagnosed with NAFLD in primary care between 2010 and 2015. NAFLD cases (n = 22,048) were matched to a cohort without NAFLD (n =&thinsp...
Source: Digestive Diseases and Sciences - Category: Gastroenterology Source Type: research
AbstractPurpose of ReviewTo review randomized interventional clinical and imaging trials that support lower targeted atherogenic lipoprotein cholesterol goals in “extreme” and “very high” atherosclerotic cardiovascular disease (ASCVD) risk settings. Major atherosclerotic cardiovascular event (MACE) prevention among the highest risk patients with ASCVD requires aggressive management of global risks, including lowering of the fundamental atherogenic ap olipoprotein B-associated lipoprotein cholesterol particles [i.e., triglyceride-rich lipoprotein remnant cholesterol, low-density lipoprotein cholester...
Source: Current Diabetes Reports - Category: Endocrinology Source Type: research
Conclusion: Prehypertension, particularly high-range, is associated with increased risk of total CVDs, CHD, MI, and stroke. Effective control of prehypertension could prevent more than 10% of CVD cases.
Source: Journal of Hypertension - Category: Cardiology Tags: REVIEWS AND META-ANALYSES Source Type: research
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Source: OnMedica Latest News - Category: UK Health Source Type: news
This study aimed to investigate the impact of clinical pharmacist intervention on the prognosis of acute coronary syndrome (ACS) in Chinese patients with CHD. Two hundred and forty patients who had ACS were recruited. Participants were randomly assigned to the intervention group (n = 120) or the control group (n = 120). The intervention group received a medication assessment and education by the clinical pharmacist at discharge and telephone follow-ups at 1 week and 1 and 3 months after discharge. The control group received usual care. The primary outcomes of this study were the proportion of patients who had major adverse...
Source: Frontiers in Pharmacology - Category: Drugs & Pharmacology Source Type: research
Conclusions: Hostility was associated with incidence of CHD among postmenopausal women with diabetes, especially among incident diabetes. These results provide a basis for targeted prevention programs for women with a high level of hostility and diabetes.
Source: Menopause - Category: OBGYN Tags: Original Articles Source Type: research
AbstractThe purpose of this study was to assess gender identity differences in CVD risk and CVD conditions among adults in the U.S. Using data from the 2014 –2017 BRFSS we compared CVD risk and CVD conditions in gender minorities (transgender men, transgender women and gender nonconforming persons) to both cisgender men and women. The sample consisted of 662,903 participants. Transgender women (AOR 1.34, 95% CI 1.05–1.72) and transgender men (AOR 1. 54, 95% CI 1.07–2.24) were more likely to be overweight than cisgender women. Compared to cisgender women, transgender women reported higher rates of diabetes...
Source: Journal of Behavioral Medicine - Category: Psychiatry Source Type: research
Authors: Román GC, Jackson RE, Reis J, Román AN, Toledo JB, Toledo E Abstract Observational epidemiological studies provide valuable information regarding naturally occurring protective factors observed in populations with very low prevalences of vascular disease. Between 1935 and 1965, the Italian-American inhabitants of Roseto (Pennsylvania, USA) observed a traditional Italian diet and maintained half the mortality rates from myocardial infarction compared with neighboring cities. In the Seven Countries Study, during 40years (1960-2000) Crete maintained the lowest overall mortality rates and coronar...
Source: Revue Neurologique - Category: Neurology Tags: Rev Neurol (Paris) Source Type: research
In this study, researchers studied 438,952 participants in the UK Biobank, who had a total of 24,980 major coronary events - defined as the first occurrence of non-fatal heart attack, ischaemic stroke, or death due to coronary heart disease. They used an approach called Mendelian randomisation, which uses naturally occurring genetic differences to randomly divide the participants into groups, mimicking the effects of running a clinical trial. People with genes associated with lower blood pressure, lower LDL cholesterol, and a combination of both were put into different groups, and compared against those without thes...
Source: Fight Aging! - Category: Research Authors: Tags: Newsletters Source Type: blogs
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