Source:http://linkedlifedata.com/resource/umls/id/C0014242
MSH: One of the three major groups of endogenous opioid peptides. They are large peptides derived from the PRO-OPIOMELANOCORTIN precursor. The known members of this group are alpha-, beta-, and gamma-endorphin. The term endorphin is also sometimes used to refer to all opioid peptides, but the narrower sense is used here; OPIOID PEPTIDES is used for the broader group.,CSP: one of the three major groups of endogenous opioid peptides; large peptides derived from the pro-opiomelanocortin precursor.