. . . . . . . . . . . "a(CHEBI:metformin) -> a(CHEBI:\"reactive oxygen species\")" . "Approximately 61,000 statements." . "Copyright (c) 2011-2012, Selventa. All rights reserved." . "BEL Framework Large Corpus Document" . . "20131211" . "We studied the effect of this drug in differentiating 3T3-L1 adipocytes and found that metformin causes oxidative stress since it increases the levels of reactive oxygen species (ROS) and lowers the aconitase activity." . . "Selventa" . . . . "2014-07-03T14:33:23.850+02:00"^^ . . .