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Effect of R-568 on Akt activation and NO production in vSMCs from WKY and SHR rats.

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posted on 2018-08-09, 17:58 authored by Natalia Di Pietro, Maria Assunta Potenza, Sara Di Silvestre, Francesco Addabbo, Nadia Di Pietrantonio, Pamela Di Tomo, Caterina Pipino, Domitilla Mandatori, Carola Palmerini, Paola Failli, Mario Bonomini, Monica Montagnani, Assunta Pandolfi

(A) vSMCs stimulated with 1μM of R568 (R) at different times (30 seconds, 1 minute, 2 minutes) in the presence or absence of Calhex 231 (C, 1 μM) were subjected to immunoblotting for total and phosphorylated forms of Akt (phospho-AktSer473). Total β-actin levels were used as loading control. A representative set of immunoblots is shown for experiments that were repeated independently 3 times. Each bar represents the mean ± SD of densitometric analysis for phosphorylated proteins normalized to their respective total forms. *p < 0.02 vs respective basal (CTRL), **p < 0.05 R+C vs respective R. (B) NO production determined by conversion of L-[3H]-arginine into L-[3H]-citrulline in vSMCs stimulated with 1μM of R568 in the presence or absence of Calhex 231 (1 μM), data are expressed as pmol/NO/min/mgprottot (picomoles /Nitric Oxide/ minutes/ milligrams protein total). Each bar represents the mean ± SD of 3 independent experiments. *p < 0.02 R568 vs respective basal, **p < 0.01 R568+Calhex vs respective R568.

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