[Quantitative variations during the intermoult cycle of peptides related to human growth hormone in Palaemon serratus (Crustacea; Decapoda)].
Growth hormone-like peptides cross-reacting with an antiserum human specific were detected in the haemolymph, the midgut gland and stomach extracts of the prawn Palaemon serratus using radioimmunoassay. Parallelism was observed between the dilution sample curves and the hGH standard curve. Moreover, at least one peptide exhibiting a similar apparent molecular weight (22,000 daltons) with hGH was detected. In the three samples different amounts were detected during intermolt cycle: between 1.3 and 2.2 ng/ml in the haemolymph, 23 and 84 ng/g wet weight for the midgut gland, 12 and 71 ng/g ww for the stomach. The stages with highest values were respectively: D 1" and D 1"', D 1"' and D 2, D 3 and AB.
D000818:Animals; D013006:Growth Hormone / Q000031:analogs & derivatives* / Q000032:analysis / Q000097:blood; D006458:Hemolymph / Q000737:chemistry; D008099:Liver / Q000737:chemistry; D008675:Metamorphosis, Biological; D008970:Molecular Weight; D033541:Palaemonidae / Q000737:chemistry* / Q000254:growth & development; D010179:Pancreas / Q000737:chemistry; D013270:Stomach / Q000737:chemistry
D013006:Growth Hormone
Variations quantitatives durant le cycle d'intermue de peptides apparentés à l'hormone de croissance humaine chez Palaemon serratus (Crustacea Decapoda).