Pulmonary kinetic expression of the endothelin system in a swine model of endotoxic shock.
Vet Res Commun
; 34 Suppl 1: S21-4, 2010 Jun.
Article
em En
| MEDLINE
| ID: mdl-20437271
ABSTRACT
Endothelin (ET)-1 is a potent vasoconstrictor peptide involved in the derangement of respiratory mechanics during endotoxic shock. We measured the kinetics of pulmonary mRNA expression of the key components of the ET system [i.e., ET-1, ET-converting enzyme (ECE), and ETA and ETB receptors] by quantitative real-time reverse transcriptase-polymerase chain reaction in a swine model of endotoxic shock (0, 1, 2, 3, and 4 h of continuous LPS infusion at 40 microg/kg/hour; sham group, 4 hour saline infusion). A significant increase in mRNA expression levels was observed for ET-1 in LPS-treated piglets; the increase began as early as 1 hour. In contrast, no significant variations were observed for the ECE, ETA, or ETB genes. Small gene expression differences observed with respect to our previous results suggest a possible effect of the anesthesia or surgical protocol on ET system regulation.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Choque Séptico
/
Doenças dos Suínos
/
Lipopolissacarídeos
/
Pulmão
Idioma:
En
Ano de publicação:
2010
Tipo de documento:
Article