Smog can trigger heart diseases


Smog reminds me of my junior high school days when there was a buzz about impact of smog on environment and health of people.  The word Smog comes from the blend of two words -smoke and fog. It can form in almost any climate where industries or cities release large amounts of air pollution, such as smoke or gases.  Smog has been attributed to increase in Asthma cases in cities.  A new study establishes link between excessively smog areas to higher heart disease.

The study was conducted at Texas A&M Health Science Center, co-author of the study Rajat Sethi, revealed that “Our study looked for direct evidence of the role of ozone alone in cardiac dysfunction by creating a controlled environment.” The study was presented at the American Heart Assn.’s Basic Cardiovascular Sciences 2010 Scientific Sessions in Rancho Mirage.

About the study
Rats were exposed to ozone, believed to be major component of smog for varied periods of time

Increased level of tumor necrosis factor-alpha was observed in hearts of rats that were exposed as compared to un-exposed rats

Caveolin-1, a protein that...

protects heart level was also reduced in ozone exposed rats

Caveolin is believed to trigger a process that leads to death of certain heart cells.  So, death of some heart cell was attributed as major risk of heart disease by exposure to excessive smog.

This study emphasizes on the fact that smog, which is a result of environmental pollution remain a cause of concern for health in people.  Support the drives that can reduce smog burden in your city like car pooling, alternative of gasoline as fuel, plant more trees and etc. 

Source: latimes

2 Responses

  1. Related says:

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