Green tea is well known for its health benefits. Recently, at US cancer research conference, I-Hsin Lin, of Chung Shan Medical University in Taichung showed her findings on green tea, genes and lung cancer.
According to the study conducted on smokers and non-smokers, it was found that “smokers and nonsmokers who consume a minimum of one cup of green tea per day appear to have a nearly 13-fold and fivefold lower risk, respectively, for developing lung cancer than smokers and nonsmokers who don’t drink any green tea.”
“The health effect of green tea consumption could modify the risk of lung cancer, particularly among smokers,” said study author I-Hsin Lin, of Chung Shan Medical University in Taichung.
The observed protective effect seems to result from the strong “antioxidative property” of polyphenols found in green tea preparations.
To determine just how strong this effect might be, the authors assessed the dietary intake and lifestyle habits of 170 lung cancer patients and 340 healthy patients.
The participants completed questionnaires outlining their smoking histories, green tea consumption habits, fruit and vegetable intake, and cooking practices. Patients were also asked to note any family history of lung cancer.
Genetic testing was also conducted to assess which particular insulin-like growth factor genotype — among several — each participant possessed.
This analysis was considered crucial, given the author’s observation that, independent of green tea consumption, genetically determined hormonal differences can affect how quickly cancer cells spread, thereby predisposing people toward a greater or lesser general risk for developing lung cancer in the first place.
While emphasizing that both smoking and nonsmoking tea drinkers generally benefited from green tea consumption relative to non-tea drinkers, the team observed that tea drinkers with particular growth factor genotypes seemed to gain even more protection — as much as 66 percent greater protection compared with tea drinkers bearing a different genetic background.
The findings reflect solely upon the potential interplay of green tea, genetics and lung cancer risk, the researchers noted, leaving aside potential questions regarding black tea consumption.
“Our results suggest the potential health benefits of green tea consumption,” concluded Lin. “However, cigarette smoking can serve as an initiator and promoter of carcinogenesis, [so] cessation of smoking is the best way for cancer prevention.”Source: www.sharp.com
To check more on tea and cancer, please read here.
It is definitely great news for green tea drinkers, but it also doesn’t mean that you can compliment smoking with green tea to get better. Smoking is still bad for health, so quit now and replace it with one cup of green tea a day.