Strana 1 od 21 výsledky
BACKGROUND
Platelets are activated in patients with cluster headache, during both the remission period and the active cycles.
OBJECTIVE
To delineate more clearly the origin of platelet activation in cluster headache. Methods.-Platelet aggregation induced by collagen (0.5 micro g/mL and 2 micro
Clinical tolerance, inhibition of platelet aggregation and intracellular platelet adenosine 3':5'-cyclic monophosphate (cyclic AMP) levels were evaluated in normal volunteers given i.v. infusions of prostacyclin sodium at rates up to 15 ng/kg/min. Short-term infusions (30 and 60 minutes) were
Results of this study confirm the link between migraine and alterations of platelet responsiveness. Our data suggest that in migraineurs the perturbated platelet microviscosity, analyzed by means of fluorescence polarization, appears responsible for the decrease of stimulation-induced influx of
OBJECTIVE
To investigate blood nitrite levels after migraine attacks and to assess whether or not the change in nitric oxide levels observed during acute migraine persist after the attacks.
BACKGROUND
Involvement of nitric oxide has been suggested in the initiation of acute migraine. Recent studies
Objective: To analyze the incidence and risk factors of microbleeds lesions and to use thromboelastography (TEG) to evaluate the relationship between perioperative platelet function and microbleed events in patients with unruptured
BACKGROUND
The clinical benefits of dual antiplatelet treatment (aspirin + clopidogrel) in the management of acute coronary syndromes (ACS) are well established. However, clopidogrel is a prodrug that requires hepatic activation. Concerns regarding its delayed onset of action, variability in
BACKGROUND
The role of platelets in acute cardiovascular atherothrombotic events has been well established and attention has focused on platelet inhibition therapy. Clopidogrel is a novel thienopyridine inhibitor of adenosine diphosphate-induced platelet activation. Recent studies have shown that in
BACKGROUND
Clopidogrel, aspirin (ASA), and the fixed-dose combination of extended-release dipyridamole and ASA (ER-DP+ASA) are widely used in post-stroke regimens.
OBJECTIVE
This study compared serial changes in multiple biomarkers of platelet activation with ER-DP+ASA and clopidogrel with or
The purpose of this study was to investigate the correlation between platelet aggregability and silent brain infarcts. The study subjects were 445 people (264 men, 181 women; mean age, 53 ± 14 years) with no neurologic signs, history of brain tumor, trauma, cerebrovascular disease, or antiplatelet
Clopidogrel is a thienopyridine antiplatelet agent that inhibits adenosine diphosphate-dependent platelet activation and aggregation and is currently one of the most widely prescribed antiplatelet drugs for the treatment of symptomatic coronary artery disease. Several large clinical trials have
The cerebral vasodilator response induced by topical nitroglycerin and nitroprusside was examined in cats equipped with cranial windows for the observation of the cerebral microcirculation. In cats subjected to chronic unilateral trigeminal ganglionectomy, the vasodilator responses to nitroprusside
Twenty-three patients with essential hypertension and diabetes mellitus type II were treated with the calcium antagonist diltiazem (120 to 180 mg twice daily). The mean dose was 307 mg/day. The study was a double-blind, placebo-controlled, crossover design. All measurements were performed 12 to 14
A 60-year-old postmenopausal woman diagnosed as primary osteoporosis began to take raloxifene. The spontaneous microaggregates of platelets induced by shear stress were accelerated after the treatment, concomitant with the significant upregulation of p44/p42 mitogen-activated protein (MAP) kinase
Parenteral compounds present special drug delivery challenges. This open-label study evaluated a portable infusion pump as a means to deliver intravenous ciprostene, a stable prostacyclin analog. Ten patients with peripheral vascular disease and claudication received ciprostene (titrated to 120
Employing optical density methods, platelet aggregation in response to 1.275, 1.7, and 3.4 micrometer adenosine diphosphate was tested in 46 patients with migraine and 46 controls matched by age, sex, and race. The migraine patients demonstrated platelet hyperaggregability when compared with