Navigation Links
Dieting May Lower Hormone Levels Tied to Breast Cancer
Date:5/21/2012

By Randy Dotinga
HealthDay Reporter

MONDAY, May 21 (HealthDay News) -- New research suggests that weight loss through exercise and dieting helps overweight women lower the levels of certain hormones in their blood, potentially raising the odds that they'll avoid developing breast cancer.

The findings don't prove that losing weight this way will prevent breast cancer. Still, women who take medications to prevent the disease "need long-term solutions for managing their risk," study co-author Dr. Anne McTiernan, director of the Prevention Center at the Fred Hutchinson Cancer Research Center, said in a news release from the center.

"Weight loss represents an additional option for long-term breast cancer risk reduction without significant or bothersome side effects," McTiernan added.

The study is published in the May 21 online issue of the Journal of Clinical Oncology.

Previous research at the center has suggested that "losing just 5 percent or more of one's weight could cut by a quarter to a half the risk for the most common, estrogen-sensitive breast cancers," McTiernan said.

In the new study, researchers wanted to understand how weight loss through exercise, diet or both would affect potentially dangerous levels of hormones in the body.

The investigators randomly assigned 439 overweight-to-obese women to one of four groups. One group exercised (mainly through walking), one group dieted, one group did both and the remaining group did neither. The women were aged 50 to 75 with an average age of 58.

Those who dieted or dieted and exercised lost an average of about 10 percent of their weight. In addition, they lowered the levels of several hormones.

"The amount of weight lost was key to changes in hormone levels," McTiernan said. "The biggest effect was through diet plus exercise; exercise by itself didn't produce much of a change in weight or estrogen."

Dr. Robert Hiatt, professor and chair of the department of epidemiology and biostatistics at the University of California, San Francisco, cautioned that weight loss has been connected to breast cancer risk after menopause only. "In this stage of a woman's life, most of the circulating estrogens are no longer coming from the ovaries, which cease to function, but from fat tissue that is capable of producing the same types of estrogens," said Hiatt, who's familiar with the study findings.

He cautioned that "the study does not say that losing weight lowers the risk of breast cancer. It would take a larger and longer study to prove that. It does, however, suggest than weight loss has the right kind of effect on circulating estrogens, and it would be reasonable to expect that breast cancer rates would subsequently fall in such women."

More information

For more on breast cancer, visit the U.S. National Library of Medicine.

SOURCES: Robert Hiatt, M.D., Ph.D., professor and chair, department of epidemiology and biostatistics, University of California, San Francisco; May 21, 2012, Journal of Clinical Oncology, online


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

Related medicine news :

1. Official Alkaline Diet Website Announces New Expansion Plans to Offer Natural Health and Dieting News
2. Dieting alone may not help stave off type 2 diabetes; muscle mass, strength important
3. Dieting Resolution Works Best When Done in Stages: Expert
4. Extreme Dieting Often Lasts From Early Teens to Adulthood
5. Hunger Hormones May Drive Post-Dieting Weight Gain
6. Obese people regain weight after dieting due to hormones
7. Dieting Can Prove Dangerous for Kidney Disease Patients
8. Healthy Dieting in Pregnancy May Be Helpful
9. Paxil Blocks Tamoxifen, Lowers Survival Odds Against Breast Cancer
10. Drinking Milk While Pregnant May Lower Kids MS Risk
11. Dark Chocolate May Lower Stroke Risk
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Dieting May Lower Hormone Levels Tied to Breast Cancer
(Date:3/24/2017)... ... March 24, 2017 , ... According to a new study by NCPA ... does not obey the rules Congress has directed the CBO to follow. The CBO ... reform would restore. Yet, it estimates a reduction in employer-based coverage due to the ...
(Date:3/24/2017)... ... , ... The iaedp Foundation, the premier provider of educational programs and training ... the full spectrum of disordered eating, announced today that the 2017 Symposium set a ... states and several countries converged on the Green Valley Resort in Las Vegas. ...
(Date:3/24/2017)... ... 24, 2017 , ... Shamanic healer and teacher Anahata Ananda ... Spiritual Awakening, proudly presents her Sacred Peru retreat with world famous shaman ... journey during the Summer Solstice will also be her final international retreat, Anahata ...
(Date:3/24/2017)... ... March 24, 2017 , ... ... wanted to create a communications platform that positions them as the go-to thought ... ONS reinvented their online publication as an always-on, always-fresh news, views and advocacy ...
(Date:3/24/2017)... ... March 24, 2017 , ... On June 9, 2017, ... Claims Litigation seminar in Chicago, Illinois. She will present on: , Filing ... litigated under ERISA involve claims for long-term disability benefits. This session will ...
Breaking Medicine News(10 mins):
(Date:3/24/2017)... Mar 24, 2017 Research and Markets has ... Strategic Business Report" report to their offering. ... The report provides separate comprehensive analytics for the ... Europe , Asia-Pacific , Latin ... provided for the period 2015 through 2022. Also, a six-year historic analysis ...
(Date:3/24/2017)... , March 24, 2017  Eli Lilly ... announced plans to invest $850 million in its ... facilities across its U.S. enterprise, including research laboratories, ... investments are being driven by demand for Lilly ... potential medicines in development targeting cancer, pain, diabetes ...
(Date:3/24/2017)... 2017  Mirabilis Medical, a Seattle ... non-invasive surgery, announced today CE Mark authorization for ... uterine fibroids throughout the European Union.  The company ... the US Food and Drug Administration to begin ... the United States.  The Mirabilis System combines high-speed ...
Breaking Medicine Technology: