Hydrogen sulfide (H2S) is an endogenous biologically active gas produced in mammalian
tissues. It plays a very critical role in many pathophysiological processes in the body. It can
be endogenously produced through many enzymes analogous to the cysteine family, while
the exogenous source may involve inorganic sulfide salts. H2S has recently been well
investigated with regard to the onset of various carcinogenic diseases such as lung, breast,
ovaries, colon cancer, and neurodegenerative disorders. H2S is considered an oncogenic …