HCPLive Network

Air Pollution Linked to Atherosclerosis Marker

THURSDAY, April 25 (HealthDay News) -- Greater exposure to air pollution is associated with greater progression of carotid artery thickness, a marker of atherosclerosis, according to a study published online April 23 in PLOS Medicine.

Sara D. Adar, ScD, MHS, from the University of Michigan, in Ann Arbor, and colleagues examined the association between concentrations of fine particulate matter (PM2.5) and intima-medial thickness (IMT, as measured by ultrasound) of the common carotid artery in 5,362 individuals without pre-existing cardiovascular disease (45 to 84 years old) in six U.S. metropolitan areas.

The researchers found that carotid IMT increased by an average of 14 µm/y. After adjusting for factors such as smoking and age, higher average levels of residential PM2.5 were associated with increased IMT progression, but only among individuals in the same metropolitan area. Within the same metropolitan area, living at a residence with 2.5 µg/m³ higher levels of residential PM2.5 was associated with a 5.0 µm/y increased IMT progression annually compared with living in less polluted regions. Greater reductions in PM2.5 were associated with slower IMT progression.

"In a large prospective cohort study of adults without pre-existing cardiovascular disease, we found evidence that individuals with higher long-term residential concentrations of PM2.5 experience a faster rate of IMT progression as compared to other people within the same metropolitan area," Adar and colleagues conclude.

Full Text
Editorial

Copyright © 2013 HealthDay. All rights reserved.

Further Reading
Research indicates that there are probable etiologies of low back pain that can affect treatment outcome and that ignoring pain can possibly cause chronic neurological changes.
Researchers are learning more about the ways in which gut microbiota interact with the central nervous system and the role this can play in pain management.
Although the underlying mechanisms are not fully understood, opioid-induced hyperalgesia occurs in some patients on higher doses of opioids. Treatment options include reducing, rotating, or completely tapering the opioid regimen.
Magnetic resonance is an effective alternative to biopsy for identifying and quantifying fats in the liver, according to results from a study led by a research team at the University of the Basque Country.
Daily supplements of selenium or vitamin E don't seem to protect against the development of age-related cataracts among men, according to a study published online Sept. 18 in JAMA Ophthalmology.
Workplace flu shots are a good investment, a new survey found. The US Centers for Disease Control and Prevention (CDC) on Sept. 19 urged all health care personnel to get flu vaccinations. The CDC also released the results of a survey of 1,882 health care clinicians meant to determine what factors influenced those who got the shots. Among its findings, when workplaces offered free shots on-site, compliance was 61.6% when the vaccinations were offered for one day only. When they were offered for multiple days, compliance rose to 80.4%. When employers did not offer the shots at all, compliance dropped to 49.0%
Cancer patients burdened by stress and family conflicts before surgery may face a higher risk for complications following their operation, according to a study published in a recent issue of the Journal of Gastrointestinal Surgery.
More Reading