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[Effect of benzo(a)pyrene on platelet aggregation and expression of P-selectin]. 2011

Qian Tang, and Yi-hua Wu, and Feng Li, and Jun Yang
Zhejiang California International Nanosystems Institute, Hangzhou 310029, China. mumu_taq@163.com

To investigate the effect of benzo(a)pyrene (BaP) on platelet aggregation and expression of P-selectin. Blood samples were collected from healthy volunteers and the platelets was washed. Platelet aggregation was monitored by aggregometer and the expression of P-seletin was detected by whole blood flow cytometry. BaP (10 μmol/L, 1 μmol/L and 0.1 μmol/L) did not induce platelet aggregation; however, preincubation with BaP (10 μmol/L) significantly enhanced ADP-induced platelet aggregation (P < 0.01) and platelet aggregation was (80 ± 10)%, while BaP-preincubation failed to enhance platelet aggregation under collagen and thrombin stimulation. Flow cytometry showed that preincubation with BaP increased ADP-induced, but not thrombin-induced P-selectin expression (P < 0.01). BaP can stimulate ADP-induced platelet aggregation and P-selectin expression, probably through the interaction with ADP-mediated signal pathway.

UI MeSH Term Description Entries
D010974 Platelet Aggregation The attachment of PLATELETS to one another. This clumping together can be induced by a number of agents (e.g., THROMBIN; COLLAGEN) and is part of the mechanism leading to the formation of a THROMBUS. Aggregation, Platelet
D001792 Blood Platelets Non-nucleated disk-shaped cells formed in the megakaryocyte and found in the blood of all mammals. They are mainly involved in blood coagulation. Platelets,Thrombocytes,Blood Platelet,Platelet,Platelet, Blood,Platelets, Blood,Thrombocyte
D003094 Collagen A polypeptide substance comprising about one third of the total protein in mammalian organisms. It is the main constituent of SKIN; CONNECTIVE TISSUE; and the organic substance of bones (BONE AND BONES) and teeth (TOOTH). Avicon,Avitene,Collagen Felt,Collagen Fleece,Collagenfleece,Collastat,Dermodress,Microfibril Collagen Hemostat,Pangen,Zyderm,alpha-Collagen,Collagen Hemostat, Microfibril,alpha Collagen
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000244 Adenosine Diphosphate Adenosine 5'-(trihydrogen diphosphate). An adenine nucleotide containing two phosphate groups esterified to the sugar moiety at the 5'-position. ADP,Adenosine Pyrophosphate,Magnesium ADP,MgADP,Adenosine 5'-Pyrophosphate,5'-Pyrophosphate, Adenosine,ADP, Magnesium,Adenosine 5' Pyrophosphate,Diphosphate, Adenosine,Pyrophosphate, Adenosine
D001564 Benzo(a)pyrene A potent mutagen and carcinogen. It is a public health concern because of its possible effects on industrial workers, as an environmental pollutant, an as a component of tobacco smoke. 3,4-Benzopyrene,3,4-Benzpyrene,3,4 Benzopyrene,3,4 Benzpyrene
D013917 Thrombin An enzyme formed from PROTHROMBIN that converts FIBRINOGEN to FIBRIN. Thrombase,Thrombin JMI,Thrombin-JMI,Thrombinar,Thrombostat,alpha-Thrombin,beta,gamma-Thrombin,beta-Thrombin,gamma-Thrombin,JMI, Thrombin
D019007 P-Selectin Cell adhesion molecule and CD antigen that mediates the adhesion of neutrophils and monocytes to activated platelets and endothelial cells. Antigens, CD62P,CD62P Antigens,GMP-140,LECAM-3,P Selectin,Platelet alpha-Granule Membrane Protein,CD62P Antigen,PADGEM,Antigen, CD62P,Platelet alpha Granule Membrane Protein,Selectin, P

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