Skip to main content
. 2022 Sep 15;13:937956. doi: 10.3389/fendo.2022.937956

Figure 4.

Figure 4

A general model describing the routes of absorption of GRA and SFN and a proposed mechanism of action on bone cells based on H2S-release. Briefly, upon chewing of plants belonging to Brassica genus, myrosinase (MYR, green) is released and can convert glucoraphanin (GRA) to sulforaphane (SFN) (1). GRA can be adsorbed in the stomach or in the small intestine (2). Microbacterial thioglucosidases (MYR, red) converts GRA to SFN which is further adsorbed in large quantities (3). SFN and GRA are released by circulation in bone tissue where can release H2S and exert anabolic and anticatabolic properties on bone cells (4). The mechanism by which H2S can be directly released from GRA has not been clarified yet.