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Seaweeds contribute to the maintenance of health through their nutritional and medicinal properties. The effects of PYP, a 14 kDa protein isolated from a hot-water extract of the marine alga Porphyra yezoensis, on AAP-induced liver injury in rats was evaluated. AAP induced acute liver injury and AAP-induced hepatotoxicity is the leading cause of liver failure. In this study, male Sprague-Dawley rats were assigned to one of three treatment groups: control, AAP, or AAP + PYP. Compared with the control group, liver tissue from the AAP group showed increased levels of caspase-3 activity and DNA fragmentation, decreased levels of GSH and increased serum GOT/GPT levels. In contrast, treatment with AAP + PYP produced levels of caspase-3 activity, DNA fragmentation, GSH and GOT/GPT that matched the values seen in the control group. It is concluded that PYP may prevent AAP-induced liver injury.
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Hwang et al. (2008) studied this question.
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