Navigation Links
Smog Tougher on the Obese
Date:10/15/2009

Study finds sharp hikes in blood pressure when overweight, air pollution combine

THURSDAY, Oct. 15 (HealthDay News) -- Air pollution appears to hit the obese hardest, causing significant increases in blood pressure, a new study finds.

Air pollution has been linked to a variety of health problems including asthma, heart disease and diabetes, but this is the first time obesity has been taken into account, researchers say.

"For those who are obese, exposure to air pollution further exacerbated systolic blood pressure and pulse pressure," said lead researcher Srimathi Kannan, an assistant professor at the School of Public Health and Health Sciences of the University of Massachusetts at Amherst.

"When you are looking at environmental exposures and medical outcomes, you have to consider obesity," Kannan said.

The report is published in the Oct. 16 online edition of the Journal of Epidemiology and Community Health.

For the study, Kannan and colleagues collected data on air pollution and health as part of the Healthy Environments Partnership study. The study looked at these factors in 919 households in areas of Detroit that included rich and poor neighborhoods and a mix of racial and ethnic groups.

Among the 348 people who had their blood tested and their weight, blood pressure, height and waist circumference measured, over half were obese and 57 percent had waist circumferences that put them at risk for diabetes and heart disease.

Among all those tested, 68 percent had high blood pressure or were on the edge of developing high blood pressure and 36 percent had high cholesterol, the researchers found.

Average levels of particulate matter air pollution were 15 micrograms per cubic meter in three of the places measured, but in one area the levels were 20 percent higher.

People who lived in the area with the greatest amount of air pollution had higher pulse pressure than those in other areas, the researchers found. Pulse pressure is the difference between the systolic and diastolic blood pressure, the top and bottom numbers in a reading.

In addition, people living in the smoggiest areas also had higher systolic blood pressure, and it didn't matter whether they were obese or of normal weight. However, the effect was greater among the obese, Kannan's team noted.

The researchers believe that individuals and society need to address the combined health threat of obesity and air pollution.

"Continued vigilance regarding regulation of emissions sources in communities of color and low-income communities is critical, combined with efforts to address obesity, in order to reduce well-established disparities in cardiovascular health," the researchers concluded.

Michael Jerrett, an associate professor of environmental health sciences at the School of Public Health of the University of California at Berkeley, said the study "is linking into the broader debates about underlying causes of death in our society."

For people who already have high blood pressure, diabetes or who are obese, air pollution may make these conditions worse, Jerrett said.

"You end up with this vicious cycle where someone becomes obese due to lifestyle and other factors, which actually becomes worsened by the air pollution," he said.

Jerrett noted that air pollution is only one environmental factor that contributes to worsening health. In addition, the poor are often exposed to more air pollution because of the neighborhoods they live in, he added.

"What comes along with the social deprivation is a cascade of other lifestyle and occupational factors that may also make the person more susceptible to air pollution's effects," he said.

Those factors can include poor nutrition, stress, traffic and industrial noise, Jerrett explained. "These can be heightening their sensitivity to air pollution," he said. "So many of these susceptibility factors cluster together in the same neighborhood, in the same person."

More information

For more information on obesity, visit the U.S. National Library of Medicine.



SOURCES: Srimathi Kannan, Ph.D., assistant professor, School of Public Health and Health Sciences, University of Massachusetts, Amherst; Michael Jerrett, Ph.D., associate professor, environmental health sciences, School of Public Health, University of California, Berkeley; Oct. 16, 2009, Journal of Epidemiology and Community Health, online


'/>"/>
Copyright©2009 ScoutNews,LLC.
All rights reserved

Related medicine news :

1. Blood Pressure Tougher to Tame in Winter
2. FDA Mulls Tougher Warning Label on Kids Flu Drugs
3. FDA Panel Backs Tougher Warning for Tamiflu
4. FDA Panel Backs Tougher Warning on Asthma Drugs for Kids
5. Minorities, Poor Have Tougher Time Monitoring Diabetes
6. FDA Demands Tougher Warnings on Immunosuppressive Drugs
7. Quitting Smoking Tougher on Women
8. Terror Fears Tougher on Minorities, Disabled
9. Atkins Diet Tougher on Heart After Weight Loss
10. Fixed Dosed Combination Agents and Novel Antihypertensives Are Expected to Face Tougher Formulary Restrictions
11. Smoking Packs a Tougher Wallop for Women
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/20/2017)... (PRWEB) , ... July 20, 2017 , ... ChenMed ... MD, has joined JenCare Senior Medical Center as Richmond Chief Medical Officer. ... School of Medicine, and Associate Chief Medical Officer of Ambulatory Services for the UVA ...
(Date:7/20/2017)... ... July 20, 2017 , ... ... and application performance monitoring (APM) solutions, has expanded its footprint inside the ... According to Peter Ohrenberger, sales director at Nastel, “We’ve replaced an existing ...
(Date:7/20/2017)... ... July 20, 2017 , ... For individuals with extended hospital stays or ... used in such facilities are specially designed to accommodate patients with a wide range ... An inventor from Rochester, Ind., has invented the patent-pending PORTABLE ARM REST, a specially ...
(Date:7/20/2017)... ... ... Team Type 1 Foundation, a nonprofit organization pursuing a global mission of education, ... with a Microsoft Corp. employee-led hackathon team for the 2017 Microsoft One Week Hackathon ... 1’s mission overlaps seamlessly with Microsoft’s mission to empower every person and every organization ...
(Date:7/20/2017)... ... July 20, 2017 , ... ... development of non-invasive devices and systems for monitoring cardiopulmonary diseases, announced today that ... be used to complete regulatory submissions and fund final engineering and initial production ...
Breaking Medicine News(10 mins):
(Date:7/6/2017)... , July 6, 2017 ThriveRx, the nutrition division of Diplomat ... families to thrive on nutrition support. To celebrate its anniversary, ... site has a fresh new look with improved organization to create the ... ... "We,ve ...
(Date:7/5/2017)... company of over 2,000 employees and a leader in environmental and life science ... their position as the top American owned and operated environmental testing firm in ... ... ... , enhances Pace Analytical,s capability as an innovative full service provider in ...
(Date:6/30/2017)... 2017 In vitro diagnostics market firm Kalorama ... at least ten diagnostic companies have successfully completed financings.  ... and a loan facility.  The size of these financings ... Kalorama Information provides a monthly IVD Market Trends ... Center. "Diagnostics ...
Breaking Medicine Technology: