Medical Forum / Diseases and Disorders / Hepatitis / March 2006
coffee and liver enzymes
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kjoh - 30 Mar 2006 16:39 GMT Hi gang, not sure if this is good news or bad. Do we want our liver enzymes artificially reduced by coffee/caffeine?
kj drinks too much coffee, has normal liver enzymes, and needs to see if this journal is available at the local library.
From pubmed.gov:
Coffee: good, bad, or just fun? A critical review of coffee's effects on liver enzymes.
"Coffee consumption is a regular part of daily life throughout the world. Research into the effects of coffee on human health is ongoing, but a recent study suggests that coffee and caffeine consumption can reduce the risk of elevated alanine aminotransferase activity in individuals at high risk for liver disease. This review will analyze the results of that study in light of the current literature."
Nutr Rev. 2006 Jan;64(1) Homan DJ, Mobarhan S. Division of Gastroenterology, Hepatology, and Nutrition, Loyola University Medical Center, Maywood, IL 60153, USA.
Thomas Wagner - 30 Mar 2006 19:20 GMT >Hi gang, not sure if this is good news or bad. Do we want our liver >enzymes artificially reduced by coffee/caffeine? It doesn't just "artificially" reduce liver enzymes, it actually contains stuff that's good for the liver. That went through all the papers pretty recently. Since no doc that's up to date should ever base treatment decisions on liver enzymes anyway, I don't think there's potential for harm. And I don't believe that the same cautions for interaction with enzyme pathways we've discussed for milk thistle during treatment go for coffee as well. So... IMAO, coffee is not a problem. I've had my usual tea and the occasional coffee during tx, and it kept me alive (no other drugs for me). The caution about dehydration through caffeinated drinks appears to be wrong anyway (bad studies, not bad caffeine).
Thomas
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Burke Gilman - 30 Mar 2006 21:04 GMT I also ran across recent literature about effects of coffee on the liver; that is, on how coffee may reduce inflammation of the liver.(?)
My thoughts in response are this: I normally drink a lot of coffee--too much coffee by pretty much any of the usual recommendations--but my liver enzyme levels are within normal limits. For a person who probably has had Hep-C for around 20 years (detected and diagnosed only in the past few months), I was surprised when my labs revealed normal values for liver enzyme levels. Because elevated levels of liver enzymes in the blood (caused by inflammation of the liver that causes enzymes to leak out of liver cells at an increased rate) are associated with liver inflammation, my hopeful thought is that my excessive coffee consumption may actually have helped prevent liver inflammation related to hepatitis-C infection.
Some folks (including a transplant recipient) tell me that coffee consumption is poison to the liver for people with hepatitis, the correlation between coffee consumption and reduced incidence of liver inflammation suggests other wise. I think it best that I discontinue my coffee consumption now that I am on inteferron/ribavirin therapy, as coffee consumption almost certainly will exacerbate dehydration problems and therby exacerbate that unbiquitous side effect that is fatigue.
Regardless of my behavior and experiences during and after Hep-C treatment, I must admit I've always felt relieved when reading some scientific literature that suggests all the coffee I drink may not be such a bad thing for my health.
-- BG in Seattle
Thomas Wagner - 31 Mar 2006 04:20 GMT >Some folks (including a transplant recipient) tell me that coffee >consumption is poison to the liver for people with hepatitis, the [quoted text clipped - 4 lines] >problems and therby exacerbate that unbiquitous side effect that is >fatigue. I've read in several sources that the claim that coffee dehydrates is nonsense, and based on faulty studies with completely unrealistic scenarios. If you're a heavy drinker, you might want to reduce a bit, but stopping coffee consumption may be what really exacerbates the side effects, including headaches (the usual symptom of caffeine withdrawal) and fatigue. Unfortunately, the medical profession seems a bit slow when it comes to reversing long-held beliefs that are proven wrong.
One probably unbiased source: http://www.yogajournal.com/health/1736.cfm
Thomas
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Burke Gilman - 31 Mar 2006 16:11 GMT Thomas, thanks for the informative article. (http://www.yogajournal.com/health/1736.cfm). Before reading it, I drank a cup yesterday, and I seem to be deciding to go ahead and use coffee during my treatment, although in careful moderation.
Moderate amounts of coffee have never seemed to cause problems for me, but in the past few years, there have been times when I felt pressed to drink a lot more coffee than normal, in order to combat increasing levels of fatigue. The fatigue (and other symptoms) was consistent with hepatitis-C inflammation, but I'd typically conclude it was from dehydration from coffee and put all the blame there.
For sure, too much coffee will overdose the consumer on caffeine (and I don't know what else) and thereby cause undesirable side effects. But I too keep seeing evidence that the dehydrating effects of coffee are grossly exaggerated. It's also interesting that our requirements for pure water consumption might also be typically exaggerated and that coffee consumed should be counted not as part of total water consumption, rather than as something that detracts from total water consumption.
Anyway, a few hours after my morning dose of Ribavirin yesterday, I went ahead and drank a cup of coffee without any adverse effects. The cup of coffee was stimulating as usual. I was experiencing low-grade fatigue related to the Ribavirin before I drank the coffee. After drinking the coffee, the fatigue went away for an hour or two and then returned. It may have been worse, or maybe not. Thus, it seems coffee may be useful for ameliorating fatigue, but there might be a price paid on the rebound--pretty much everything about my performance and symptoms appears to be turning into a delicate balancing act now that I'm on the interferon/ribavirin.
BG in Seattle
Thomas Wagner - 31 Mar 2006 16:19 GMT >[...] It may have been worse, or maybe not. Thus, it seems coffee >may be useful for ameliorating fatigue, but there might be a price paid >on the rebound--pretty much everything about my performance and >symptoms appears to be turning into a delicate balancing act now that >I'm on the interferon/ribavirin. Yes, it's very much trial and error - and what works one week may not work the next. I was lucky that my sides were relatively mild, but clearing my head well enough to be at least baseline functional for work (software development) always was a struggle. Coffee and tea, in moderation, helped. Not always, but usually enough to make it at least appear that what I was doing was sensible...
Thomas
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