1.
An Acad Bras Cienc
; 55(1): 123-8, 1983.
Article
in English
| MEDLINE
| ID: mdl-6614670
ABSTRACT
1) The presence of histamine in prickles and lead and stem tissues of Cnidosculus oligandrus (Mull. Arg) Pax & Hoffm (Euphorbiaceae) is reported. 2) Prickles on stems and leaves have larger amounts of histamine, as determined by the isolated guinea-pig ileum and by fluorimetry of the condensation product of the histamine and ortho-phthalaldehyde (OPT). 3) Additionally, thin-layer chromatography and the increase of vascular permeability bioassay were used to confirm the presence of histamine.