Navigation Links
Study Finds Green Tea Offers No Protection From Breast Cancer
Date:10/28/2010

By Steven Reinberg
HealthDay Reporter

THURSDAY, Oct. 28 (HealthDay News) -- Although some research has suggested that drinking green tea might help protect women from breast cancer, a new, large Japanese study comes to a different conclusion.

"We found no overall association between green tea intake and the risk of breast cancer among Japanese women who have habitually drunk green tea," said lead researcher Dr. Motoki Iwasaki, from the Epidemiology and Prevention Division at the Research Center for Cancer Prevention and Screening of the National Cancer Center in Tokyo.

"Our findings suggest that green tea intake within a usual drinking habit is unlikely to reduce the risk of breast cancer," he said.

The report is published in the Oct. 28 online issue of the journal Breast Cancer Research.

For the study, Iwasaki's team collected data on 53,793 women who were surveyed between 1995 and 1998. As part of the survey, the women were asked how much green tea they drank.

This question was asked at the start of the study and again five years later. During the second survey, the researchers asked about two different types of green tea, Sencha and Bancha/Genmaicha.

Among the women, 12 percent drank less than one cup of green tea a week, while 27 percent drank five or more cups a day, the researchers found. The study also included women who drank 10 or more cups a day.

Over almost 14 years of follow-up, 350 women developed breast cancer, but the researchers found no association between drinking green tea and the risk for developing breast cancer.

In the study, Iwasaki noted that one strength of the research was its prospective design, so that the information was collected before the diagnosis of breast cancer, "thereby avoiding the exposure recall bias inherent to case-control studies."

Dr. Stephanie Bernik, a breast cancer surgeon at Lenox Hill Hospital in New York City, said that "it's hard to say that there is no benefit from green tea overall, certainly. Maybe there is no benefit for breast cancer specifically."

Bernik noted that many women are interested in alternative medicine when Western medicine doesn't have the answers.

"We are always looking to learn more about how to improve the outcome of breast cancer and how to reduce the incidence of breast cancer," she said. Women are definitely interested in how they can have a healthier lifestyle."

Jennifer J. Hu, a professor of epidemiology and public health at the University of Miami School of Medicine's Sylvester Comprehensive Cancer Center, added that the problem with population-based studies is that when you try to look at one single factor you may not be taking into account other risk factors that can influence the result.

"Also, just by drinking green tea you don't get enough of the [possible cancer-fighting ingredient] to make much of a difference," she said.

Based on these problems, Hu doesn't think this study answers the question of whether or not green tea might help guard against breast cancer.

More information

For more on breast cancer, visit the American Cancer Society.

SOURCES: Motoki Iwasaki, M.D., Ph.D., Epidemiology and Prevention Division, Research Center for Cancer Prevention and Screening, National Cancer Center, Tokyo; Stephanie Bernik, M.D., breast cancer surgeon, Lenox Hill Hospital, New York City; Jennifer J. Hu, Ph.D., professor, epidemiology and public health, University of Miami School of Medicine Sylvester Comprehensive Cancer Center; Oct. 28, 2010, Breast Cancer Research, online


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

Related medicine news :

1. New study suggests most preschool-age children exceed daily screen time recommendations
2. Pancreatic Cancer Surprisingly Slow to Arise: Study
3. Egg Donors Happy They Helped Out: Study
4. Certain cancer therapies success depends on presence of immune cell, Stanford study shows in mice
5. Parent-Only Programs Can Help Obese Kids Lose Weight: Study
6. Manchester team wins $1.9 million grant for cell control study
7. Gene Mutations May Blunt Plavixs Effectiveness, Study Finds
8. Primary Care MDs at Low End of Pay Scale, Study Finds
9. Study raises concern about ability of tests to predict fertility
10. Targeted radiation therapy minimizes GI side effects for prostate cancer patients, Penn study shows
11. Ingredients in Red Yeast Rice Supplements Vary Widely: Study
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Study Finds Green Tea Offers No Protection From Breast Cancer
(Date:3/24/2017)... (PRWEB) , ... March 24, 2017 , ... ... the year of enhancements, upgrading their training and leads programs. , In February, ... Reserved for elite sales agents, Performance Partners is designed to teach how to ...
(Date:3/24/2017)... ... March 24, 2017 , ... “Finding Christ ... #TruthwithGrace”: a devotional journal chronicling the writer’s path toward true communion with God. ... with God #TruthwithGrace” is the creation of published author Lea Michelle Johnson, a ...
(Date:3/24/2017)... ... 2017 , ... “Vintage and Harvest A Cultivation of Christian Love” is the ... in North Carolina with his wife, Anna Marie. He and his wife are the ... is also the author of “Shadow and Substance.” , “Love, the agape kind, is ...
(Date:3/24/2017)... , ... March 24, 2017 , ... “The Adventures of ... smart and silly dog who lives his life to the fullest, as God intended. ... published author Patti Holmgren, a mother and grandmother pursuing her passion for writing, especially ...
(Date:3/23/2017)... ... ... A recent report from the National Council on Teacher Quality (NCTQ) advocates ... based on a review of GPA and SAT/ACT requirements at 221 institutions in 25 ... argues that this higher bar should be set by states, by the Council for ...
Breaking Medicine News(10 mins):
(Date:3/23/2017)... DUBLIN , Mar 23, 2017 Research ... Market Analysis & Trends - Industry Forecast to 2025" report ... ... CAGR of around 6.9% over the next decade to reach approximately ... market estimates and forecasts for all the given segments on global ...
(Date:3/23/2017)... HICKORY, N.C. , March 23, 2017  Transportation ... accolades as an end-to-end supply chain management firm with ... of Consumer Product Solutions Rick Zaffarano was ... Star of the Supply Chain by the only publication ... the global food supply chain. "Rick has ...
(Date:3/23/2017)... 2017  The U.S. Food and Drug Administration today ... of adults and pediatric patients 12 years and older ... have not received prior chemotherapy. This is the first ... of skin cancer. "While skin cancer is ... rare form called Merkel cell cancer have not had ...
Breaking Medicine Technology: