RESUMEN
<p><b>OBJECTIVES</b>To study on the relationship between platelet Ca2+(i), CD62P, CD63, serum CD62P (SCD62P) and cirrhosis patients.</p><p><b>METHODS</b>Platelet CD62P, CD63 were determined with flow cytometry, SCD63P with ELISA, and Ca2+(i) in platelet was determined with fluorophotometry.</p><p><b>RESULTS</b>Platelet Ca2+(i), CD62P, CD63, and SCD62P levels in cirrhosis patients were (103.1+/-22.2)nmol/L, (47.6+/-20.0)%, (47.1+/-24.6)%, and (67.6+/-37.6)microg/L, and in controls were (57.6+/-13.1)nmol/L, (3.1+/-0.7)%, (2.5+/-0.7)%, and (24.0+/-6.5)microg/L, respectively. The levels in the former were higher than those in the latter (t > or = 6.148, P<0.05). The above levels in upper gastrointestinal haemorrhage group were much higher than those in the non-haemorrhage group (120.3nmol/L+/-18.8nmol/L vs 91.1nmol/L+/-14.3nmol/L, 64.9%+/-14.7% vs 34.6%+/- 11.9%, 70.9%+/-14.5% vs 30.2%+/-14.4%, and 103.6microg/L+/-14.9microg/L vs 40.8microg/L+/-24.0microg/L, respectively, t > or = 5.380, P<0.05). But the numbers of platelet between the two groups were no obvious difference.</p><p><b>CONCLUSIONS</b>Platelet in the cirrhosis patients is greatly active, and the detection of platelet CD62P, CD63, SCD62P has a certain value in judging the degree of cirrhosis.</p>