Abstract
This study investigated the effect of a β-hydroxyphosphonate analog of <smlcap>L</smlcap>-carnitine (L-CA) (CAS number: 1220955-20-3, Component: 1221068-91-2, C<sub>12</sub>H<sub>29</sub>NO<sub>4</sub>PI), (3-Hexanaminium, 1-(dimethoxyphosphinyl)-2-hydroxy-N,N,N,5-tetramethy-iodide (1:1), (2R, 3S)) on parameters related with type-2 diabetes in an in vitro model. Nontoxic concentrations of L-CA were assayed and compared to commercial <smlcap>L</smlcap>-carnitine effects. L-CA did not affect adipogenesis in normal cells, but an increment of TG accumulation was observed on insulin-resistant adipocytes (80%) when compared with resistant control. L-CA also stimulated glucose analog 2-NBDG uptakes on insulin-resistant adipocytes in a similar way as insulin when compared to insulin-resistant cells. Our results show that the L-CA promoted insulin-like responses on insulin-resistant adipocytes without appreciable pro-adipogenic effect in sensitive adipocytes.
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