Results:PTA1 McAb induced human platelet aggregation in vitro,which could be completely inhibited by EGTA and PGI2.F(ab′)2 of PTA1 McAb had no effect on CD9 or CD41 induced platelet activation and aggregation.
Objective To explore the platelet activation level and the changes of thromboxane B 2(TXB 2) and 6 Keto Prostaglandin F 1α (6 Keto PGF 1α )which are metabolites of thromboxane A 2 (TXA 2) and prostacyclin (PGI 2)under altitude condition.
there was more increase in EH and LEAO EH group than that in pure EH group. Moreover, the expression level of CD62P PAC-1 was positively correlated with the platelet aggregation rate (r=0.8701, 0.7931, p<0.01)Conclusion: 1. CD62p PAC-1 , The platelet microparticle activation markers,reflected the change of platelet activity better.
Objective: To observe the serous level of the CD62p, CD63 which evaluate the injected red sage root's effect on the platelet activity and clinical treatment of patients with pulmonary heart disease.
The purpose of the present study was to find out the relationship between activated platelet, microthrombus formation and postprocedural myocardial injury by measuring platelet membrane protein CD62P and membrane glycoprotein GPⅡb/Ⅲa、D-dimer、CK-MB and cTnI.
The activated platelet was obviously increased during acute phase of cerebral infarction,and still maintained a higher level in a long time even in the chronic phase compared with control group (CD 41 ,CD 62 P<0.05,CD 63 P<0.01).
There is a relation between activated platelet and the degree of seriousness,size of infarction in patients with cerebral infarction. PAC-1 and CD_(62P) can be served as parameter to evaluate the state of cerebral infarction.
Methods:Salvia miltiorrhiza,which inhibits the expression of fibrinogen receptor(FIB-R) and P-selection(CD 62P) on activated platelet surface in vitro,were analyzed by tri-color flow cytomety.
CONCLUSION: Ticlopidine can significantly reduce the platelet aggregation, improve activation of platelet and resume the balance of T/K of patients with type 2 diabetes mellitus.
CD40L may participate in thrombosis and activation of platelet. The soluble CD40L levels increase persistently in patients with acute cerebral infarction and acute coronary syndrome.
Conclusion:Phosphorylation of PP125 FAK in platelet depends on both the activation of platelet and the normal structure and function of αⅡ bβ 3 . αⅡ bβ 3 mediates the outside in signaling in platelets,the defect of αⅡ bβ 3 impaires this signal transduction,the phosphorylation of PP125 FAK could not be completely blocked by using a McAb for αⅡ bβ 3 .
结论 :PP12 5 F AK磷酸化依赖于血小板活化和 α bβ3结构及功能的完整。 整合素 α bβ3介导了血小板外 -内信号传导 ,α bβ3缺陷可影响这种信号传导 ,抗 α bβ3单抗不能完全阻断 PP12 5 F AK磷酸化
we detected CD61、CD62p on platelet membrane with FCM, compare the results between research and control objects, and evaluate the effect on CD62p expression and activation of platelet.
The characteristic features of the propagation phase are: almost quantitative prothrombin activation at a high rate, completion of platelet activation, and solid clot formation.
Thrombin production and platelet activation also initiate the process of wound healing requiring thrombin-dependent cell activation and platelet-dependent formation of new blood vessels (angiogenesis).
Failure to localize and adequately regulate thrombin production and/or platelet activation can have pathological consequences, including the development and propagation of atherosclerosis and enhancement of tumor development.
The parameters of the platelet activity and aggregation indicated the absence of age-related changes in the structure and functions of platelets in response to inducers, including epinephrine, collagen, and ristocetin.
On average, statins improve lipid profiles and have been shown to have ancillary beneficial effects on inflammation, platelet activity, and endothelial function.
Evidence is emerging that aspirin resistance, as defined by residual platelet activity, merely reflects an individual's enhanced basal platelet function and suggests a hereditary component.
As a disturbing factor, postprandial conditions activated platelet hemostasis by modulating the initial stages of aggregation and substantially changed the interrelations between blood cells.
To explain these results, factors related to dosing, and inadequate inhibition or activation of platelet pro-coagulant activity have been recently suggested.
Our earlier work recorded the profound activation of platelet NADPH cytochrome P-450 reductase and the acetylation of the reductase protein by DAMC, which also remarkably enhanced intracellular levels of nitric oxide.
The activation of platelet function may have relevance to cardiovascular and pulmonary complications during total hip replacement and for postoperative thromboembolism.
Total hip replacement is often complicated by acute and severe cardiovascular disturbances and thromboembolism brought about by the intravasation of thromboplastic material and the activation of platelet function during surgery.
血小板活化
platelet activation
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