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Alternative and Complementary Medicine Commons

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2009

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HPLC

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Full-Text Articles in Alternative and Complementary Medicine

Analysis Of Corrinoids In Ovine Tissues, R Kelly, Tini Gruner, J Furlong, A Sykes Apr 2009

Analysis Of Corrinoids In Ovine Tissues, R Kelly, Tini Gruner, J Furlong, A Sykes

Dr Tini M Gruner

Corrinoids from various ovine tissue samples (liver, blood, small intestinal fluid and faeces) were analysed using a combination of high-performance liquid chromatography (HPLC) and a radioisotope dilution assay (RIDA) to estimate the distribution of corrinoids - the cobalamins hydroxocobalamin (OH-cbl), methylcobalamin (me-cbl) and 5-deoxyadenosylcobalamin (ado-cbl), and cobalamin analogues - in these tissues. Samples were taken from either cobalt-deficient or cobalt-replete ewes, and ruminant and pre-ruminant lambs. In liver, ado-cbl predominated, followed by analogues, OH-cbl and me-cbl. Supplementation with either cobalt (ruminant) or vitamin B12 injections (pre-ruminant) increased the amount of ado-cbl and decreased analogues. In blood, OH-cbl predominated, followed by …