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[20] [7] This conversion is illustrated by the reduction of peroxides (via the sulfenate as an intermediate): GSH + R 2 O 2 GSOR + ROH GSOR + GSH GSSG + ROH Net reaction: 2 GSH + R 2 O 2 GSSG + 2 ROH (R = H, alkyl) and with free radicals, forming glutathionyl radicals (GS ) that may dimerize to disulfide: GSH + R RH + GS 1/2 GSSG Thiyl radicals (such as glutathionyl radicals) are themselves oxidizing species in biology, with a single-electron reduction potential sufficient for oxidation of nucleic acids, proteins and polyunsaturated lipids
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Your gut absorbs B12 through two separate pathways
Bacterial contamination may not show obvious signs
The exact sequence supplied under the name TB-500 varies among commercial vendors and published reports, making sequence verification important when comparing studies
