Changes of mitochondrial membrane potential and mtDNA copy number induced by carnosine in SGC-7901 cells.

<p>(A) Changes in JC-1 fluorescence with carnosine treatment in cultured SGC-7901 cells. The cells were treated with carnosine (20 mM) for 48 h, and then were stained with JC-1. Red fluorescence indicates a polarized state and green fluorescence indicates a depolarized state. Scale bar: 20 µm. (B) MtDNA copy number in SGC-7901 cells treated with or without carnosine.