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Exogenous hydrogen sulfide increased solute permeability. HUVECs were treated with hydrogen sulfide donors, Na2S (A), GYY4137 (B), DATS (C) and inorganic polysulfide donors (D) in transwell inserts at indicated concentrations. FITC-albumin was added to the top chamber and medium was collected at indicated time points over 4 h. * indicates significant difference from vehicle treatment group at the same time point (n=3, p<0.05).
