Experimental Biology 2014: Non-alcoholic fatty liver disease

Apr 29 2014 Published by under ASPET, Experimental Biology

I learned something at poster session 1116. Alcoholic and Nonalcoholic Fatty Liver Disease
Tue, Apr 29, 7:30 AM - 4:00 PM.

Tue, Apr 29, 12:45 - 3:00 PM 1116.11/A601 - Low copper and dietary sucrose drive fibrosis pathways in a rat model of non-alcoholic fatty-liver disease

Tallino and Burkhead presented a poster studying non-alcoholic fatty liver disease in a rodent model. I'm most used to considering similar damage in the context of alcohol exposure, given that abused drugs are my focus. So it was interesting to learn that some 20-25% of those on a Western diet may exhibit some signs of fatty liver disease that has nothing to do with alcohol.

The study Tallino and Burkhead conducted was based on evidence that steatosis may be related to copper (Cu) deficiency and that this may interact with sucrose in the diet.

The study consisted of four groups of Wistar rats, exposed to different dietary conditions for 12 weeks. The factors were a diet either sufficient or deficient in Cu and a 10% or 30% sucrose addition.

The authors show that low Cu diet works, serum Cu was significantly lowered in these groups. Interestingly there was an interaction whereby the group with low Cu and 30% sucrose diet was further depleted in serum Cu. As expected, serum glucose was elevated with 30% sucrose but this was only out of the normal range with the low Cu / 30% sucrose group.

Interestingly, these dietary conditions resulted in no change in free fatty acids and no change in body weight. Remember that now.

The low Cu diet increased liver steatosis significantly with an interaction with the sucrose treatment to increase this sign of non-alcoholic fatty-liver disease. So Cu deficiency can combine with high sucrose in the diet to produce liver damage in the absence of other indications of a fatty diet (weight gain, high circulating triglycerides).

The study then went on to find that the high sucrose, low Cu diet was associated with alterations in gene transcripts related to fibrosis progression, hepatic stellate cell activation and a few other things related to the hypothesized model of damage.

5 responses so far

  • ANON says:

    So basically another reason why we need to eat chocolate (= copper). yeah!!

  • PalMD says:

    I do wonder if it has anything at all to do w NAFLD in humans

  • drugmonkey says:

    You saying we have a surfeit of Cu in our diet Pal?

  • Savannah says:

    @drugmonkey - I'm excited that you found my poster and research intriguing! Thanks for the post.
    @PalMD - part of the rationale behind our study was based on clinical observations that hepatic Cu appears inversely related to NAFLD progression (http://www.ncbi.nlm.nih.gov/pubmed/20407430).

  • John Carroll says:

    This study emphasized that not all liver diseases are caused by alcohol addiction and doesn’t need to undergo recovery rehab addiction because not all people who are suffering from liver disease is an alcoholic. We should be careful also on the food that we eat. Eating a balanced diet and becoming conscious of what type of foods we consume is a great way of preventing sickness. Through these specified food groups, we can nourish our bodies. In addition, eating healthy must be accompanied with exercise. Sweating and engaging in physical activities can help in fighting stress. Exercise does not only make you fit but also it can fight depression, this could then lead to a healthier and happier life.

Leave a Reply