Journal
NUTRITION & METABOLISM
Volume 7, Issue -, Pages -Publisher
BMC
DOI: 10.1186/1743-7075-7-84
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Funding
- Harbin Science and Technology Bureau, People's Republic of China [2009RFLXS002]
- National Natural Science Fund, People's Republic of China [30973427]
- Specialized Research Fund for the Doctoral Program of Higher Education, People's Republic of China [20092307110019]
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Background: Red raspberry possesses potent antioxidant capacity and antiproliferative activity against cancer in vitro. Methods: The objective of this study was to determine the protective effects of raspberry 80% acetone extract in a rat hepatic lesions model induced by diethylnitrosamine (DEN). Rats were treated with the red raspberry extract (0.75, 1.5 or 3.0 g/kg of body weight) by gavage starting 2 h after DEN administration and continuing for 20 weeks. Results: A dose-dependent inhibition by red raspberry extract of DEN-induced hepatic nodule formation which stands for hepatic lesions was observed. Corresponding hepatic nodule incidence rates were 45.0, 40.0, 25.0 and 5.0% in positive control, low, middle and high groups, respectively (P < 0.01 or 0.05). Gross findings, histopathological and ultrastructural evaluations of hepatic lesion were performed on 9, 8, 5 and 1 hepatic nodule in positive control, low, middle and high doses of groups, respectively, identified in rats from the respective groups of 20. A decreasing trend of proportions of hepatocellular carcinoma masses accompanied the increasing doses of red raspberry extract. Conclusions: These findings demonstrate that the potent capacity of red raspberry diet could not only suppress DEN-induced hepatic lesions in rats, but also reduce the definite diagnostic features of neoplasm.
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