Hydrogen sulfide-induced enhancement of gastric fundus smooth muscle tone is mediated by voltage-dependent potassium and calcium channels in mice

Figure 1 Double immunofluorescence labeling of cystathionine β-synthase and cystathionine γ-lyase proteins in cultured mouse gastric smooth muscle cells. A: CBS-IR is present in α-actin IR smooth muscle cells; B: CSE-IR is present in α-actin IR smooth muscle cells; C: Negative control without primary antibodies (scale bar =100 μm). CBS: Cystathionine β-synthase; CSE: Cystathionine γ-lyase; IR: Immunoreactivity.