The acute effect of smoking on platelet and endothelial release reaction is suppressed in chronic smokers.
Thromb Res
; 65(2): 263-74, 1992 Jan 15.
Article
en En
| MEDLINE
| ID: mdl-1533735
ABSTRACT
Whilst increased plasma beta-thromboglobulin (beta TG), platelet factor 4 and thrombospondin levels are regarded as reflecting the release reaction of platelets, tissue-type plasminogen activator (t-PA) and plasminogen activator inhibitor-1 (PAI-1) levels represent endothelial release reaction and/or damage. In this study including 12 smokers and 9 nonsmokers, we investigated the acute and chronic effect of smoking on these parameters and antithrombin III, protein S and fibrinogen, as well. Nonsmokers were found to have somewhat higher plasma levels of beta TG, t-PA and PAI-1 than chronic smokers, and 30 minutes after smoking two cigarettes, these levels and protein S levels of nonsmokers showed more prominent increases than of chronic smokers. It is speculated that chronic exposure to cigarette smoke may cause "exhaustion" or "receptor down-regulation" of platelets and endothelial cells, resulting with diminished release reaction of platelets and endothelium in response to acute smoking.
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Banco de datos:
MEDLINE
Asunto principal:
Plaquetas
/
Endotelio Vascular
/
Fumar
Límite:
Adult
/
Female
/
Humans
/
Male
Idioma:
En
Año:
1992
Tipo del documento:
Article