综合一区欧美国产,99国产麻豆免费精品,九九精品黄色录像,亚洲激情青青草,久久亚洲熟妇熟,中文字幕av在线播放,国产一区二区卡,九九久久国产精品,久久精品视频免费

   

Drinking coffee reduces risk of liver cancer

(ANI)
Updated: 2007-08-02 14:48

A new study has revealed that coffee consumption reduces the risk of HCC (hepatocellular carcinoma) or liver cancer.

However the reasons for this are still unresolved.

At least eleven studies conducted in southern Europe and Japan have examined the relationship between coffee drinking and the risk of primary liver cancer.

The current study, led by Francesca Bravi of the Istituto di Ricerche Farmacologiche Mario Negri in Milan, Italy, was a meta-analysis of published studies on HCC that included how much coffee patients had consumed. Researchers combined all published data to obtain an overall quantitative estimate of the association between coffee consumption and HCC.

The results showed a 41 percent reduction of HCC risk among coffee drinkers compared to those who never drank coffee.

"Moreover, the apparent favourable effect of coffee drinking was found both in studies from southern Europe, where coffee is widely consumed, and from Japan, where coffee consumption is less frequent, and in subjects with chronic liver diseases," the researchers state.

They point out that animal and laboratory studies have indicated that certain compounds found in coffee may act as blocking agents by reacting with enzymes involved in carcinogenic detoxification.

Other components, including caffeine, have been shown to have favourable effects on liver enzymes. Coffee has also been related to a reduced risk of liver diseases and cirrhosis, which can lead to liver cancer.

"Despite the consistency of these results, it is difficult to derive a causal inference on the basis of the observational studies alone," the authors note.

It may be that patients with digestive tract diseases, including liver disorders, naturally reduce their coffee consumption, even though avoidance of coffee is not routinely recommended.

Also, they note that the assessment of coffee intake was based on patients' self-reporting, although recall of coffee drinking has been shown to be accurate. The fact that the inverse relationship between coffee drinking and HCC was shown in both southern Europe and Japan suggests a lack of bias in these studies. Allowance for other confounding factors, such as hepatitis B and C, cirrhosis, social class indicators, alcohol use and smoking, also suggests that such factors did not influence the results.

"In conclusion, the results from this meta-analysis provide quantitative evidence of an inverse relation between coffee drinking and liver cancer," the authors state.

"The interpretation of this association remains, however, unclear and the consequent inference on causality and worldwide public health implications is still open for discussion," they added.

The results of this study appear in the August 2007 issue of Hepatology, the official journal of the American Association for the Study of Liver Diseases (AASLD).



Related Stories  
Top Lifestyle News  
Today's Top News  
Most Commented/Read Stories in 48 Hours
屏南县| 长汀县| 云霄县| 正宁县| 福安市| 高碑店市| 灵寿县| 乐至县| 信阳市| 大名县| 铜山县| 滨海县| 西乌珠穆沁旗| 曲沃县| 凤庆县| 汶川县| 汉寿县| 色达县| 东兴市| 兴宁市| 沙洋县| 宁陵县| 驻马店市| 昌邑市| 漾濞| 遂平县| 山阳县| 松江区| 文山县| 锡林郭勒盟| 新和县| 靖宇县| 沂水县| 丰都县| 江达县| 金平| 仁寿县| 冷水江市| 萨迦县| 福鼎市| 康定县|