Navigation Links
Obesity increases risk of prostate cancer recurrence for both blacks and whites

DURHAM, N.C. A new look at a large database of prostate cancer patients shows that obesity plays no favorites when it comes to increasing the risk of recurrence after surgery: Being way overweight is equally bad for blacks and whites, say researchers at Duke University Medical Center.

Studies have shown that obesity is linked to generally worse outcomes in many cancers, including prostate cancer. Because blacks are more likely than whites to develop and die from prostate cancer and because there is a higher prevalence of obesity among black men with prostate cancer, compared to whites some studies have suggested that obesity might be a more ominous risk factor for blacks than whites.

"Not so," says Stephen Freedland, M.D., an associate professor of urology and pathology in the Duke Prostate Center and the senior author of the study appearing in the journal Cancer. "Obesity leads to worse cancer in both groups."

Freedland and Jayakrishnan Jayachandran, M.D. a urologic oncology fellow at Duke and the lead author of the paper, examined the records of 1,415 men enrolled in the Shared Equal Access Regional Cancer Hospital (SEARCH) database who had undergone a radical prostatectomy. Black men comprised almost half (47 percent) of the sample.

After adjusting for various preoperative characteristics, researchers analyzed the relationship between body mass index (BMI) and the aggressiveness of the cancer, as measured by the risk of recurrence. In contrast to other studies, investigators found no association between race and obesity.

Almost a third of the men were obese, regardless of race. "We found that higher BMI was associated with significantly increased risk of cancer recurrence for both blacks and whites," said Jayachandran. "Though prior SEARCH-based studies from our group found that obesity was associated with a higher risk of disease progression as measured by a rising PSA after surgery, it now appears that being obese just means a poorer prognosis, period, regardless of race."

As for why that might be, Jayachandran says he's not sure, but he says it may have something to do with altered hormone levels.

"Obesity is associated with more estrogen and less testosterone, and it may be that lower testosterone promotes more aggressive tumors as recent studies have suggested." In addition, Jayachandran says alteration in the production of other hormones, like insulin, insulin-like growth factor or leptin, which occur in obese men, may also be involved in the development of more aggressive tumors. "This is something we simply do not understand, but we are actively studying all of these factors."


Contact: Michelle Gailiun
Duke University Medical Center

Related medicine news :

1. Introducing All-New IEHP Superhero to Battle Childhood Obesity
2. The Obesity Society Position on Recent Criticism of Surgeon General Nominee Regina Benjamin
3. America Takes on the Challenge to Fight Obesity
4. YMCA of the USA Announces 16 Communities Selected for Statewide Policy Change Initiative to Reverse the Childhood Obesity Epidemic
5. Ten Professional Societies Join Forces to Develop Obesity Medicine Certification Examination
6. Tennessee's New Life Center for Bariatric Surgery Launches Comprehensive Website Reaching out to Sufferers of Morbid Obesity
7. Kaiser Permanente Honored for Efforts to Combat Obesity With 2009 Pioneering Innovation Award at Weight of the Nation Conference
8. CDC Recognizes Innovative Obesity Prevention and Control Initiatives With Weight of the Nation Awards
9. More Can Be Done to Slow Obesitys Toll on Health: Experts
10. Highmark Provides Pediatricians With Resources to Combat Childhood Obesity
11. Almost 10 Percent of U.S. Medical Costs Tied to Obesity
Post Your Comments:
(Date:6/25/2016)... ... ... temporary closing of Bruton Memorial Library on June 21 due to a possible lice infestation, ... aspect of head lice: the parasite’s ability to live away from a human host, and ... necessary one in the event that lice have simply gotten out of control. , As ...
(Date:6/25/2016)... ... June 25, 2016 , ... On Friday, June 10, Van Mitchell, ... at Work award to iHire in recognition of their exemplary accomplishments in worksite health ... annual Maryland Workplace Health & Wellness Symposium at the BWI Marriott in Linthicum Heights. ...
(Date:6/24/2016)... ... June 24, 2016 , ... Marcy was in a crisis. Her son James, eight, ... at his family verbally and physically. , “When something upset him, he couldn’t control his ... it. He would throw rocks at my other children and say he was going to ...
(Date:6/24/2016)... , ... June 24, 2016 , ... Topical BioMedics, Inc, makers of Topricin and MyPainAway ... call for a minimum wage raise to $12 an hour by 2020 and then adjusting ... restore the lost value of the minimum wage, assure the wage floor does not erode ...
(Date:6/24/2016)... ... 2016 , ... Strategic Capital Partners, LLC (SCP) in concert ... capital for emerging technology companies. SCP has delivered investment events and professional ... than a million dollars of capital investment for five companies. The ...
Breaking Medicine News(10 mins):
(Date:6/26/2016)... , June 27, 2016 Jazz Pharmaceuticals ... waiting period under the Hart-Scott-Rodino Antitrust Improvements Act of ... acquisition of Celator Pharmaceuticals, Inc. ("Celator"; Nasdaq: ... p.m. (Eastern Daylight Time). As previously announced ... into a definitive merger agreement under which Jazz Pharmaceuticals ...
(Date:6/24/2016)... , June 24, 2016  Consumers have ... and regulators/payers have placed more emphasis on patient ... patient support programs in the pharmaceutical industry have ... medications. Consequently, pharmaceutical companies are focusing on becoming ... are providing products and services that improve health. ...
(Date:6/24/2016)... Mass. , June 24, 2016   ... Spaulding Rehabilitation Network,s Dean Center for Tick ... Physical Medicine and Rehabilitation, MIT Hacking Medicine, University ... for Innovation, today announced the five finalists of ... for Lyme disease.  More than 100 scientists, clinicians, ...
Breaking Medicine Technology: