Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
9
pubmed:dateCreated
2010-8-11
pubmed:abstractText
Sangre de drago (SD) is a viscous bright red resin collected from Croton lechleri trees that grow in the South American jungle. This sap is used extensively in the native pharmacopoeia to treat skin disorders. Its effectiveness as an inhibitor of neurogenic inflammation has been recently demonstrated. To understand the underlying mechanisms of these effects, we examined the ability of SD to reduce substance P (SP) release in an in vitro model of cutaneous neurogenic inflammation (CNI). This model is based on an enzyme immunoassay of SP (an inducer of CNI) in a porcine co-culture of dorsal root ganglion neurons and keratinocytes. After incubation with different concentrations of SD, we noted an immediate and significant dose-dependent decrease in basal SP release, with average values of 32% at 1% SD (v/v) and 26% at 0.1% (v/v). On the other hand, pretreatment (72 or 1 h) of the co-culture with 1% SD (v/v) was sufficient to induce a 111% (72 h) or 65% (1 h) inhibition of capsaicin-induced SP release, while 0.1% SD (v/v) triggered a 109% (72 h) or 30% (1 h) inhibition. We conclude that sangre de drago is a potent inhibitor of CNI through direct inhibition of neuropeptide release by sensory afferent nerves.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
1600-0625
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
19
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
796-9
pubmed:meshHeading
pubmed-meshheading:20698880-Animals, pubmed-meshheading:20698880-Capsaicin, pubmed-meshheading:20698880-Cells, Cultured, pubmed-meshheading:20698880-Coculture Techniques, pubmed-meshheading:20698880-Croton, pubmed-meshheading:20698880-Dermatitis, pubmed-meshheading:20698880-Drug Evaluation, Preclinical, pubmed-meshheading:20698880-Immunoenzyme Techniques, pubmed-meshheading:20698880-Keratinocytes, pubmed-meshheading:20698880-Male, pubmed-meshheading:20698880-Neurogenic Inflammation, pubmed-meshheading:20698880-Phytotherapy, pubmed-meshheading:20698880-Plant Extracts, pubmed-meshheading:20698880-Sensory Receptor Cells, pubmed-meshheading:20698880-Sensory System Agents, pubmed-meshheading:20698880-Substance P, pubmed-meshheading:20698880-Swine, pubmed-meshheading:20698880-Tetrazolium Salts, pubmed-meshheading:20698880-Thiazoles, pubmed-meshheading:20698880-Toxicity Tests
pubmed:year
2010
pubmed:articleTitle
Effects of sangre de drago in an in vitro model of cutaneous neurogenic inflammation.
pubmed:affiliation
University of Western Brittany, Laboratory of Nervous Factors and Tissular Struturation (EA 4326), Brest, France.
pubmed:publicationType
Journal Article