title: [The peptide nature of the factor inhibiting cephalic regeneration in Eisenia foetida Sav. f. typica (Annelida, Oligocheta)].
abstract: The active material incubated with trypsin, or pronase lost its activity but not with pepsin. The peptide nature of the inhibitory factor is thus determined. Dialysis and gel filtration chromatography of this substance suggest that the inhibitory factor is a small molecule.
mesh_terms: D000818:Animals; D001921:Brain / Q000502:physiology; D003864:Depression, Chemical; D008970:Molecular Weight; D009835:Oligochaeta / Q000502:physiology*; D010434:Pepsin A; D010455:Peptides / Q000494:pharmacology*; D011402:Pronase; D012038:Regeneration / Q000187:drug effects*; D014357:Trypsin
chemical_list: D010455:Peptides; D014357:Trypsin; D010434:Pepsin A; D011402:Pronase
vernacular_title: Démonstration de la nature peptidique du facteur inhibiteur de la régénération céphalique chez le lombricien Eisenia foetida Sav. f. typica (Annélide Oligochète).