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Coffee and cigarettes may protect against liver disease

Date:
December 14, 2013
Source:
Oslo University Hospital
Summary:
Coffee and cigarette smoking may protect against the rare liver disease Primary Sclerosing Cholangitis (PSC), study shows.

Liver transplantation. PSC is the main cause for liver transplantations in Scandinavia.
Credit: Ram Gupta, Oslo University Hospital

Coffee and cigarette smoking may protect against the rare liver disease Primary Sclerosing Cholangitis (PSC), study shows.

In a new study from Norway published in Clinical Gastroenterology and Hepatology, both coffee consumption and cigarette smoking are shown to potentially protect against primary sclerosing cholangitis (PSC). This is a chronic liver disease caused by chronic inflammation of the bile ducts.

The findings are of great interest against a backdrop of increasing knowledge on coffee as a possible protective agent in other liver diseases.

The cross-sectional study was conducted by researchers at the Norwegian PSC Research Center based at Oslo University Hospital and the University of Oslo.

The study was conducted using a questionnaire about environmental exposures, and included 240 PSC patients and 245 controls.

Coffee

The study shows showed that the PSC patients had lower coffee consumption both currently and in the early adulthood, suggesting that coffee consumption could protect against the development of the disease. PSC patients who drank coffee, however, had lower levels of liver enzymes in the blood, thus suggesting a beneficial effect in the liver.

Cigarettes

Regarding cigarette smoking, only 20% of the patients reported ever daily cigarette smoking, compared with 43% of the healthy controls. In addition, cigarette smokers acquired the disease on average 10 years later than non-smokers. Taken together, these observations confirm and strengthen previous observations of smoking as a possible protective factor in PSC.

About PSC

While PSC is not a common disease, it is a severe condition affecting mostly young adults (30-40 years), and with a high risk of associated cancer of the bile ducts.

Few treatment options are available and PSC is one of the most important reasons for liver transplantation. While the possible protective effect of smoking against PSC seems rather unique to this particular liver disease, coffee consumption has been shown to protect against multiple other liver conditions including liver cirrhosis and liver cancer -- and now for the first time also against PSC.


Story Source:

The above story is based on materials provided by Oslo University Hospital. Note: Materials may be edited for content and length.


Journal Reference:

  1. Ina Marie Andersen, Guro Tengesdal, Benedicte Alexandra Lie, Kirsten Muri Boberg, Tom Hemming Karlsen, Johannes Roksund Hov. Effects of Coffee Consumption, Smoking, and Hormones on Risk for Primary Sclerosing Cholangitis. Clinical Gastroenterology and Hepatology, 2013; DOI: 10.1016/j.cgh.2013.09.024

Cite This Page:

Oslo University Hospital. "Coffee and cigarettes may protect against liver disease." ScienceDaily. ScienceDaily, 14 December 2013. <www.sciencedaily.com/releases/2013/12/131214144837.htm>.
Oslo University Hospital. (2013, December 14). Coffee and cigarettes may protect against liver disease. ScienceDaily. Retrieved August 1, 2014 from www.sciencedaily.com/releases/2013/12/131214144837.htm
Oslo University Hospital. "Coffee and cigarettes may protect against liver disease." ScienceDaily. www.sciencedaily.com/releases/2013/12/131214144837.htm (accessed August 1, 2014).

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