DLin-MC3-DMA conjugate induced non-specific gene modulation in tissues accumulating >20 pmol siRNA/mg tissue. Observed Htt and Ppib mRNA silencing (A.) normalized to Hprt (an housekeeping gene) (B.) non normalized to Hprt in liver, kidney, and spleen after SC injection of DLin-MC3-DMA siRNAs (1 week, 20 mg/kg, n=5-6, mean ± SD) (C.) Bar graph showing Hprt mRNA silencing in liver, kidney, and spleen after SC injection of DLin-MC3-DMA siRNAs (1 week, 20 mg/kg, n=5-6, mean ± SD). Data analysis: Multiple comparisons = One-way ANOVA, Dunnett test (****P<0.0001, ***P<0.001, **P<0.01, *P<0.1).