Navigation Links
Scientists Tease Out Links Between Diabetes, Cancer
Date:6/16/2010

Does the blood sugar disease help cause malignancy, or just share common risk factors?

WEDNESDAY, June 16 (HealthDay News) -- People with diabetes may have something else to be concerned about -- an increased risk of cancer, according to a new consensus report produced by experts recruited jointly by the American Cancer Society and the American Diabetes Association.

Diabetes, primarily type 2 diabetes, has been linked to certain cancers, though experts aren't sure if the disease itself leads to the increased risk or if shared risk factors, such as obesity, may be to blame.

Other research has suggested that some diabetes treatments, such as certain insulins, may also be associated with the development of some cancers. But the evidence isn't conclusive, and it's difficult to tease out whether the insulin is responsible for the association or other risk factors associated with diabetes could be the root of the link.

"There have been some epidemiological studies that suggest that individuals who are obese or who have [high levels of insulin] appear to have an increased prevalence of certain malignancies, but it's a complex issue because the association is not true for all cancers," explained Dr. David Harlan, director of the Diabetes Center of Excellence at the University of Massachusetts Memorial Medical Center in Worcester, and one of the authors of the consensus report.

"So, there's some smoke to suggest an association -- but no clear fire," he added.

As for the possible insulin-and-cancer link, Harlan said that because a weak association was found, it's definitely an area that needs to be pursued further. But, he said, that doesn't mean that anyone should change the way they're managing their diabetes.

"Our greatest concern is that individuals with diabetes might choose not to treat their diabetes with insulin or a particular insulin out of concern for a malignancy. The risk of diabetes complications is a far greater concern," noted Harlan. "It's like when someone decides to drive across the country because they're afraid to fly. While there is a slight risk of dying in a plane crash, statistically it's far riskier to drive."

The consensus report is published in the July/August issue of CA: A Cancer Journal for Clinicians.

The experts found evidence of an association between diabetes and an increased risk of liver, pancreas, endometrial, colon/rectal, breast and bladder cancer. Interestingly, they found evidence that diabetes is associated with a reduced risk of prostate cancer.

"There's a strong consensus that there is a link between diabetes and cancer, and there are some very plausible biologic links," said the report's lead author, Dr. Edward Giovannucci, a professor of nutrition and epidemiology at the Harvard School of Public Health in Boston. He said that insulin, and insulin-like growth factors, can promote some cancers, and that many people with type 2 diabetes have high levels of circulating insulin, sometimes for years before they're diagnosed with diabetes.

And, he said, there's definitely an overlap in some of the risk factors for both type 2 diabetes and cancer, especially obesity.

The panel also found research that suggests the commonly used type 2 diabetes medication, metformin, might offer users some protection against cancer. Giovannucci said this may be because the drug reduces insulin resistance and lowers the need for additional insulin, or that metformin may act on cells in other direct or indirect ways.

Giovannucci said that the most important message to take away from this research is the "profound effects that lifestyle changes can have on your risk of diabetes and your risk of cancer."

He said it's not always the most popular message, but to lower the risk of cancer, it's important to reduce your body weight, exercise, improve your diet and avoid smoking.

Alice Bender, the nutrition communications manager for the American Institute for Cancer Research (AICR), said she wasn't surprised by the findings in the consensus report. "What we're seeing is that there are a lot of commonalities between chronic diseases and their risk factors," she said.

Bender agreed with Giovannucci's suggestions and said the AICR recommends three guidelines for everyone: Maintain a healthy body weight; be physically active for at least 30 minutes a day; and, eat a mostly plant-based diet that's healthy and varied.

"At least for cancer, we know that each factor independently lowers the risk of certain cancers, but all three done together are even more powerful. And, I suspect that's the case for preventing type 2 diabetes also," she said.

Bender also emphasized the need to moderate the consumption of alcohol, which means no more than one drink per day for women and no more than two drinks per day for men.

More information

Learn more about potentially preventing cancer with diet and exercise from the American Cancer Society.



SOURCES: Edward Giovannucci, M.D., Sc.D., professor of nutrition and epidemiology, Harvard School of Public Health, Boston; David Harlan, M.D., director, Diabetes Center of Excellence, University of Massachusetts Memorial Medical Center, and chief, diabetes division, University of Massachusetts Medical School, Worcester, Mass.; Alice Bender, M.S., R.D., nutrition communications manager, American Institute for Cancer Research; July/August 2010, CA: A Cancer Journal for Clinicians


'/>"/>
Copyright©2010 ScoutNews,LLC.
All rights reserved  

Related medicine news :

1. Scientists ID a protein that splices and dices genes
2. Breakthrough by Danish scientists in preventing maternal malaria
3. NIH scientists identify maternal and fetal genes that increase preterm birth risk
4. UM School of Medicine scientists find new malaria vaccine is safe and protective in children
5. Gladstone scientists identify target that may reduce complications of obesity
6. Scientists map out regulatory regions of genome, hot spots for diabetes genes
7. Doctors and Scientists Create New Society to Promote Non-Animal Toxicology Testing Methods
8. Scientists discover enzyme that cleans cancer cells
9. Scientists Decode Brain Cancer Cell Line
10. Scientists show how molecular switch helps pancreatic cancer beat drugs
11. Brain scientists extend map of fear memory formation
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Scientists Tease Out Links Between Diabetes, Cancer
(Date:12/8/2016)... ... ... Premier Fitness Camp (PFC) and The Chopra Center for Wellbeing announced today ... at their world headquarters of Omni La Costa Resort & Spa in San Diego. ... weight loss, personal development, a healthy lifestyle, or mental and physical healing. The week-long ...
(Date:12/8/2016)... Somerset, N.J. (PRWEB) , ... December 08, 2016 ... ... advanced delivery technologies and development solutions for drugs, biologics and consumer health products, ... The PSCI was set up in 2006 as a non-profit organization to unite ...
(Date:12/8/2016)... (PRWEB) , ... December 08, 2016 , ... California Senate ... medical payments per workers’ compensation claim in 2013 and 2014, according to CompScope™ ... Research Institute (WCRI) . , According to the study, medical payments per claim in ...
(Date:12/8/2016)... ... December 08, 2016 , ... Vida Health, the digital health platform ... by Canvas Ventures . Other investors include Nokia Growth Partners (NGP) and returning ... serve more consumers who are managing chronic conditions or simply want to ...
(Date:12/8/2016)... ... 08, 2016 , ... The Dan Carlisle Agency, an Alabama-owned ... is announcing the launch of a charity drive to raise support and awareness ... and children in Birmingham has grown steadily since the 1980’s, and the Pathways ...
Breaking Medicine News(10 mins):
(Date:12/8/2016)... 2016 KEY FINDINGS North ... the market in 2016 and is expected to continue ... to a large number of surgical procedures that are ... share in the patient temperature management market.) Patient warming ... loss of blood during surgeries, lowering the risks of ...
(Date:12/8/2016)... , Dec 8, 2016 Research and Markets has announced ... report to their offering. ... This report analyzes the worldwide markets for Endodontic Supplies ... Canada , Japan , Europe ... Rest of World. Annual estimates and forecasts are provided for the ...
(Date:12/8/2016)... 8, 2016 Bodycad announced it has ... the accuracy, reproducibility and speed for 3D constructs ... small bone orthopaedic applications. These patents are critical ... orthopaedic restorations based on each patient,s distinct anatomy. ... company harnesses the world,s first suite of orthopaedic ...
Breaking Medicine Technology: