Abstract
BACKGROUND: Animal models have shown histamine to be released from the skin during the acute phase of a burn injury. The role of histamine during the early phase of thermal injuries in humans remains unclear.
PURPOSE: The objectives of this trial were to study histamine release in human skin during the acute phase of a standardized thermal injury in healthy volunteers.
METHODS: Histamine concentrations in human skin were measured by skin microdialysis technique. Microdialysis fibers were inserted into the dermis in the lower leg in male healthy volunteers. A standardized superficial thermal injury was elicited by a heating thermode (49 degrees C) applied to the skin for 5 min. Histamine in dialysate was analyzed for up to 2 h after the injury using two different analytical methods.
RESULTS: Spectrofluorometric assay of histamine showed no histamine release in separate studies using 2-min samples over 20 min (n = 6) and 5-10-min samples over 120 min (n = 8). The histamine values were at the limits of the quantification limit of the spectrofluorometric assay. Confirmatory studies using a sensitive radioimmunoassay confirmed no histamine release within the first hour of a thermal injury (baseline 11.6 +/- 1.8 nM vs. post-burn values of 14.8 +/- 1.8 nM, n = 8).
CONCLUSIONS: Histamine is not released in human skin during the acute phase of a thermal injury.
| Originalsprog | Engelsk |
|---|---|
| Tidsskrift | Inflammation research : official journal of the European Histamine Research Society ... [et al.] |
| Vol/bind | 58 |
| Udgave nummer | 7 |
| Sider (fra-til) | 395-9 |
| Antal sider | 5 |
| ISSN | 1023-3830 |
| DOI | |
| Status | Udgivet - jul. 2009 |
| Udgivet eksternt | Ja |