Decreased Expression of Adrenomedullin during Adipocyte-Differentiation of 3T3-L1 Cells
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<B>Adrenomedullin (AM) is a potent vasodilator peptide which has an inhibitory action on insulin secretion. Resistin is a novel peptide specifically secreted from adipocytes, and implicated in insulin resistance. We studied the expression of AM and resistin in 3T3-L1 adipocytes and preadipocytes by Northern blot analysis and radioimmunoassay. Immunoreactive-AM was detected in the culture media of 3T3-L1 preadipocytes and adipocytes, with higher concentrations found in preadipocytes. Northern blot analysis showed that AM mRNA was expressed in 3T3-L1 preadipocytes but was undetectable in adipocytes. In contrast, resistin mRNA was expressed in 3T3-L1 adipocytes, whereas it was not detected in 3T3-L1 preadipocytes. The present study thus showed that AM expression was decreased, and resistin expression increased, during adipocyte-differentiation of 3T3-L1 cells. (<I>Hypertens Res</I> 2003; 26 (Suppl): S41-S44)</B>
- 日本高血圧学会の論文
日本高血圧学会 | 論文
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