Saturday October 20, 2018

Obesity can lead to breast cancer

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By NewsGram Staff Writer

The root cause of many health problems, obesity, can lead to breast cancer as well. A new study has found that obesity results in stiffer breast tissue that promotes the growth of cancer.

Obesity leads to a stiffening of the mesh work material that surrounds fat cells in the breast, called the extracellular matrix, and these bio-mechanical changes create the right conditions for tumours, the findings showed.

ThinkstockPhotos-200302239-001-e1434141030608Women who are obese have a higher risk and a worse prognosis for breast cancer, but the reasons have remained unclear till now.

“We all know that obesity is bad; the metabolism changes and hormones change, so when looking for links to breast cancer, researchers almost exclusively have focused on the biochemical changes happening,” said study senior author Claudia Fischbach, associate professor of biomedical engineering at Cornell University in New York.

“But what these findings show is that there are also biophysical changes that are important,” Fischbach noted.
The findings could lead to recognition of stiffer breast cells as a clinical biomarker for breast cancer.

Also, the results should caution doctors against using certain fat cells from obese women in plastic and reconstructive breast surgeries, as these cells can promote recurring breast cancer.
The findings, published in the journal Science Translational Medicine, suggest clinicians may need to employ finer-scale imaging techniques in mammograms, especially for obese women, to detect a denser fat cells in the breast.

(With inputs from IANS)

 

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Losing Weight Can Help Lower The Risk of Breast Cancer For Post-menopausal Women

"These findings, taken together, provide strong correlative evidence that a modest weight loss programme can impact breast cancer,"

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Photo: neqotkukhealthcenter.ca

Women, please take a note. Losing weight can help lower the risk of developing breast cancer in the post-menopausal stage, a new study has found.

The study, published in the journal CANCER, found that among post-menopausal women, participants who lost weight had a lower risk of developing invasive breast cancer than those who maintained or gained weight.

“Our study indicates that moderate, relatively short-term weight reduction was associated with a statistically significant reduction in breast cancer risk for postmenopausal women,” said co-author Rowan Chlebowski from the City of Hope National Medical Center in Duarte, California.

Although obesity has been strongly related to breast cancer risk, studies examining whether weight loss might reduce postmenopausal women’s risk have provided mixed results, the researchers said.

For the study, the research team analysed information on 61,335 women participating in the World Health Initiative Observational Study who had no prior history of breast cancer and had normal mammogram results.

Breast Cancer
Weight loss may lower breast cancer risk for post-menopausal women. Pixabay

The participant’s body weight, height and body mass index were assessed at the start of the study and again three years later.

The team found that during an average follow-up of 11.4 years, there were 3,061 new cases of invasive breast cancer diagnosed.

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“These are observational results, but they are also supported by randomised clinical trial evidence from the Women’s Health Initiative Dietary Modification trial where, in a randomised clinical trial setting, adopting a low-fat dietary pattern that was associated with a similar magnitude of weight loss resulted in a significant improvement in breast cancer overall survival,” Chlebowski said.

“These findings, taken together, provide strong correlative evidence that a modest weight loss programme can impact breast cancer,” he noted. (IANS)

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