Lipopolysaccharide-induced monocyte procoagulant activity, fibrinopeptide A, and PAI-I levels in persons with high or low levels of HDL-lipoprotein.
Thromb Res
; 70(2): 161-71, 1993 Apr 15.
Article
en En
| MEDLINE
| ID: mdl-8322285
ABSTRACT
We have examined basal and stimulated monocyte procoagulant activity (PCA) in 10 persons with high HDL (1.62-2.47 mmol/L) and 10 persons with low HDL (0.43-1.29 mmol/L). Heparinized whole blood was incubated at 37 degrees C for 2 hours with 100 ng/ml of E. Coli lipopolysaccharide (LPS). Monocytes were isolated by density gradient centrifugation (purity > 70%), and PCA measured with a chromogenic peptide substrate assay. LPS-induced PCA was significantly higher in the high HDL group (p = 0.02), whereas basal levels were similar. Furthermore, the levels of total HDL, HDL2, as well as apo-A1 were all significantly correlated with LPS-induced monocyte PCA (p < 0.01, p < 0.01, and p = 0.03), whereas VLDL was inversely correlated (p = 0.02). PAI-I activity was significantly lower in the high HDL group (p < 0.01). LPS recovery in plasma after incubation, by LAL test, was significantly higher in the high HDL group (p = 0.02) and correlated to HDL2 (p = 0.04), and inversely correlated with triglycerides (p = 0.04). There was no significant difference between the two groups in plasma fibrinopeptide A (FPA) levels after LPS incubation.
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Banco de datos:
MEDLINE
Asunto principal:
Factores de Coagulación Sanguínea
/
Fibrinopéptido A
/
Monocitos
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Lipopolisacáridos
/
Inhibidor 1 de Activador Plasminogénico
/
HDL-Colesterol
Límite:
Adult
/
Female
/
Humans
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Male
Idioma:
En
Año:
1993
Tipo del documento:
Article