Featured Research

from universities, journals, and other organizations

Diet-induced obesity accelerates leukemia, study shows

Date:
September 10, 2010
Source:
Children's Hospital Los Angeles
Summary:
The first study to demonstrate that obesity can directly accelerate the progression of acute lymphoblastic leukemia has been conducted.

The first study to demonstrate that obesity can directly accelerate the progression of acute lymphoblastic leukemia (ALL) has been conducted at The Saban Research Institute of Childrens Hospital Los Angeles and will be published in Cancer Prevention Research, on October 5, 2010. Obesity has been associated with an increased incidence of many cancers, including leukemia, but it has been unknown whether the increase in incidence was a direct effect of obesity or associated with genetic, lifestyle, health, or socio-economic factors.

"Given the high prevalence of obesity in our society, we felt it was critical to determine if obesity actually caused the increased incidence of leukemia and not some other associated exposure," explains Steven D. Mittelman, MD, PhD, a pediatric endocrinologist who led the study.

Dr. Mittelman and his colleagues used a high-fat diet to induce obesity in two mouse models of ALL. Mice were randomized to a high-fat or a control diet. The investigators found that obesity increased the risk of ALL in both models, particularly in older mice. This observation was consistent with the type of cumulative effect seen with other exposure-related cancers, such as lung cancer related to smoking and breast cancer resulting from increased estrogen exposure. Observing the difference in older animals also agreed with the other obesity-related effects from cumulative exposure such as heart disease, diabetes, and arthritis.

"Our findings are consistent with epidemiological data that show a higher incidence of leukemia in obese adults and suggests that these observations are actually due to obesity, and not some associated genetic, socio-economic, or lifestyle factor," concluded Dr. Mittelman, who is also an Assistant Professor of Pediatrics and Physiology & Biophysics at the Keck School of Medicine of the University of Southern California. "These data imply that some hormone or factor in overweight individuals, perhaps produced by fat tissue itself, may signal leukemia cells to grow and divide. Since leukemia is the most common type of childhood cancer, understanding how obesity may increase its incidence could have important public health implications."

Co-authors of the study included Jason P. Yun, James W. Behan, Nora Heisterkamp, PhD, Anna Butturini, MD, Lars Klemm, John Groffen, PhD, Lingyun Ji, and Markus Muschen, MD, PhD, all of Childrens Hospital Los Angeles.

The study was funded by grants from the National Institute of Child Health and Human Development, the National Cancer Institute, and the Children's Cancer Research Fund (a California non-profit organization).


Story Source:

The above story is based on materials provided by Children's Hospital Los Angeles. Note: Materials may be edited for content and length.


Cite This Page:

Children's Hospital Los Angeles. "Diet-induced obesity accelerates leukemia, study shows." ScienceDaily. ScienceDaily, 10 September 2010. <www.sciencedaily.com/releases/2010/09/100907131508.htm>.
Children's Hospital Los Angeles. (2010, September 10). Diet-induced obesity accelerates leukemia, study shows. ScienceDaily. Retrieved October 20, 2014 from www.sciencedaily.com/releases/2010/09/100907131508.htm
Children's Hospital Los Angeles. "Diet-induced obesity accelerates leukemia, study shows." ScienceDaily. www.sciencedaily.com/releases/2010/09/100907131508.htm (accessed October 20, 2014).

Share This



More Health & Medicine News

Monday, October 20, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

How Nigeria Beat Its Ebola Outbreak

How Nigeria Beat Its Ebola Outbreak

Newsy (Oct. 20, 2014) The World Health Organization has declared Nigeria free of Ebola. Health experts credit a bit of luck and the government's initial response. Video provided by Newsy
Powered by NewsLook.com
Another Study Suggests Viagra Is Good For The Heart

Another Study Suggests Viagra Is Good For The Heart

Newsy (Oct. 20, 2014) An ingredient in erectile-dysfunction medications such as Viagra could improve heart function. Perhaps not surprising, given Viagra's history. Video provided by Newsy
Powered by NewsLook.com
Ebola Worries End for Dozens on U.S. Watch Lists

Ebola Worries End for Dozens on U.S. Watch Lists

Reuters - US Online Video (Oct. 20, 2014) Forty-three people who had contact with Thomas Eric Duncan, the first person diagnosed with Ebola in the U.S., were cleared overnight of twice-daily monitoring after 21 days of showing no symptoms. Rough Cut (no reporter narration). Video provided by Reuters
Powered by NewsLook.com
CDC Calls for New Ebola Safety Guidelines

CDC Calls for New Ebola Safety Guidelines

AP (Oct. 20, 2014) Centers for Disease Control and Prevention Director Dr. Tom Frieden laid out new guidelines for health care workers when dealing with the deadly Ebola virus including new precautions when taking off personal protective equipment. (Oct. 20) Video provided by AP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Health & Medicine

Mind & Brain

Living & Well

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins