Noguchi M, Minami M, Yagasaki R, Kinoshita K, Earashi M, Kitagawa H, Taniya T, Miyazaki I
Operation Center, Kanazawa University Hospital, Takara-machi, Japan.
Br J Cancer. 1997;75(3):348-53. doi: 10.1038/bjc.1997.57.
We investigated the effects of low-dose eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) on the incidence and growth of 7,12-dimethylbenz(a)anthracene (DMBA)-induced mammary carcinoma in rats fed a high-fat (HF) diet. We also examined the effects of these treatments on the fatty acid composition of tumour and serum. Tumour incidence was significantly decreased by the administration of low-dose EPA and DHA, whereas their inhibitory effects on tumour growth did not reach significance. Serum arachidonic acid (AA) level was decreased by the administration of low-dose EPA and tended to be decreased by the administration of low-dose DHA, whereas tumour AA levels were not changed. The administration of low-dose EPA and DHA may be useful for inhibiting the incidence of breast cancer.
我们研究了低剂量二十碳五烯酸(EPA)和二十二碳六烯酸(DHA)对高脂(HF)饮食喂养的大鼠中7,12-二甲基苯并(a)蒽(DMBA)诱导的乳腺癌的发生率和生长的影响。我们还研究了这些处理对肿瘤和血清脂肪酸组成的影响。低剂量EPA和DHA的给药显著降低了肿瘤发生率,而它们对肿瘤生长的抑制作用未达到显著水平。低剂量EPA给药降低了血清花生四烯酸(AA)水平,低剂量DHA给药使其有降低趋势,而肿瘤AA水平未改变。低剂量EPA和DHA的给药可能有助于抑制乳腺癌的发生率。