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Cold-pressed flaxseed oil reverses age-associated depression

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2006/07/11 15:44:42 (permalink)

Cold-pressed flaxseed oil reverses age-associated depression

Cold-pressed flaxseed oil reverses age-associated depression in a primary cell-mediated adaptive immune response in the mouse
Authors: Hillyer, L. M.1; Sandiford, A. M.1; Gray, C. E.1; Woodward, Bill1

Source: British Journal of Nutrition, Volume 95, Number 2, February 2006, pp. 230-233(4)

Publisher: CABI Publishing


The objective of this investigation was to determine the influence of flaxseed oil on responses representative of primary humoral and cell-mediated adaptive immune competence in immunosenescent mice. Male and female C57BL/6J mice, 85 weeks old, were randomized between two complete purified diets differing only in oil source (cold-pressed safflower or flaxseed). After 8 weeks, humoral competence was assessed in six mice per group as the serum haemagglutinin titre to sheep red blood cells (SRBC) and cell-mediated competence was assessed, in an additional six mice per group, as the delayed hypersensitivity response to SRBC. A zero-time control group (88 weeks old) and a young adult positive control group (12 weeks old) were each tested similarly (six per immune response), revealing age-related depression in both antibody and cell-mediated competence at 88 weeks of age. After the 8-week experimental period, the antibody response of the two test groups of geriatric mice remained below the young adult level (P=0·04) and the cell-mediated response of the safflower oil group also continued to exhibit age-related depression (20 % of young adult level, P=0·0002). By contrast, the anti-SRBC delayed hypersensitivity response of the flaxseed group no longer differed from the response of the young adults but exceeded that of the safflower and zero-time control senescent groups (P=0·0002). Depression in primary cell-mediated competence, the most outstanding aspect of immunosenescence, can be addressed by means of a dietary source of 18 : 3n-3 without longer-chain PUFA.

....depressed mice, whatever next........
post edited by James - 2006/07/11 15:45:18

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    Tony Barnes
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    RE: Cold-pressed flaxseed oil reverses age-associated depression 2006/07/17 14:16:28 (permalink)
    Poor little guys, I guess they don't use their wheels much...

    Interesting none the less, though given all the conversion concerns, human studies would carry more weight
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