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  • Title: One year oral Toxicity of D-004, a lipid extract from Roystonea regia fruits, in Sprague Dawley rats.
    Author: Gutiérrez A, Gámez R, Noa M, Mas R, Arencibia D, Pardo B, Valle M, Oyarzábal A, Curveco D, García H, Goicochea E, Mendoza N, Jiménez S.
    Journal: Food Chem Toxicol; 2011 Nov; 49(11):2855-61. PubMed ID: 21839798.
    Abstract:
    D-004, a lipid extract of royal palm (Roystonea regia) fruits that contains a reproducible mixture of fatty acids, has been shown to prevent testosterone and phenylephrine-induced prostate hyperplasia in rodents. This study investigated the long-term oral toxicity of D-004 in rats. Rats from both sexes were randomized into four groups (20 rats sex/group): a control and three treated with D-004 (800, 1500 or 2000 mg/kg/day, respectively). At study completion, rats were sacrificed under anaesthesia. Determinations of blood biochemical and haematological parameters and organ weight were done. Also, necropsy and histopathological studies were performed. Four of 160 rats died before study completion. No clinical signs of toxicity were observed throughout the study. Food and water consumption, bodyweight, blood biochemical and haematological parameters, organ weight ratios and histopathological findings were similar in control and treated groups. The histological lesions found in treated animals are commonly present in this specie and strain according to literature and our historical data. In conclusion, long-term (12 months) oral treatment of rats with D-004 (800-2000 mg/kg/day) did not show evidences of D-004-related toxicity under our conditions. The highest dose tested (2000 mg/kg) was a no-observed adverse effect level in this study.
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