Results: 6

High Residual Platelet Reactivity during Aspirin Therapy in Patients with Non-St Segment Elevation Acute Coronary Syndrome: Comparison Between Initial and Late Phases

Arq. bras. cardiol; 113 (3), 2019
Abstract Background: High platelet reactivity (HPR) during therapy with acetylsalicylic acid (ASA) is a poor prognostic factor in acute coronary syndromes (ACS). The prevalence of HPR during ACS is greater than that reported in stable diseases. However, it is unclear whether this prevalence of HPR is a ...

Decreased platelet responsiveness to clopidogrel correlates with CYP2C19 and PON1 polymorphisms in atherosclerotic patients

Braz. j. med. biol. res; 50 (1), 2017
Clopidogrel and aspirin are the most commonly used medications worldwide for dual antiplatelet therapy after percutaneous coronary intervention. However, clopidogrel hyporesponsiveness related to gene polymorphisms is a concern. Populations with higher degrees of genetic admixture may have increased prev...

Efecto del 27- hidroxicolesterol en la acción antiplaquetaria de estradiol en mujeres postmenopáusicas

Rev. méd. Chile; 144 (11), 2016
Background: The decline of estrogen levels increases cardiovascular risk in women. Platelets express estrogen receptors and 17β-estradiol- (E2) can produce a protective effect on thrombus formation. The hydroxylation of cholesterol generates several sterols and 27-hydroxycholesterol (27HC) predomina...

Organizaçäo do citoesqueleto e distribuiçäo da integrina 'ALFA' Ýb ß3 em plaquetas estimuladas por trombina: aplicaçöes no estudo de pacientes portadores de hipertensäo arterial pulmonar

Os mecanismos envolvidos na ativaçäo e agregaçäo plaquetária em condiçöes fisiológicas e patológicas, têm sido amplamente investigados. O propósito deste estudo foi: 1. Estabelecer alguns métodos para análise da organizaçäo de elementos contráteis e distribuiçäo da integrina 'ALFA' Ýb ...

Efeito do aluminio em plaquetas humanas

O efeito do aluminio foi avaliado em plaquetas humanas de individuos clinicamente saudaveis atraves de estudos de agregacao, peroxidacao e fosforilacao de proteinas em residuo de tirosina com os inibidores plaquetarios "in vitro" (Trolox, AAS, NDGA, EDTA E DFO). Os resultados obtidos demonstraram que o a...

Alterations of the rat thyroid gland under experimental conditions

The thiyroid gland of rats, was studied under experimental conditions porvided by administration of several doses of lithium carbonate. It was noted a drug a cumulative effcct on the serum; and the decrease of T3 and T4 hormones in the blood, as well as, the red blood cells, hemoglobin, hematocrit platel...