Endogenous opioids in marine invertebrates.
A study of the presence of opioids in invertebrates was carried out on 11 species of marine organisms, ranging from sponges to tunicates. Delipidized acid-acetone extracts from whole organisms or dissected organs were assayed by receptor binding assays and radioimmuno assays. The extracts from all species tested were found to contain substances capable of competing in both assays with opioid peptides.
Piccoli
R
R
Melck
D
D
Spagnuolo
A
A
Vescia
S
S
Zanetti
L
L
D000818:Animals; D004723:Endorphins / Q000302:isolation & purification*; D007448:Invertebrates / Q000032:analysis*; D011863:Radioimmunoassay; D011869:Radioligand Assay; D011957:Receptors, Opioid / Q000378:metabolism; D012623:Seawater
D004723:Endorphins; D011957:Receptors, Opioid