نتایج جستجو برای: losartan
تعداد نتایج: 3767 فیلتر نتایج به سال:
α2-Adrenoceptors lower central sympathetic output and peripheral catecholamine release, and thus may prevent sympathetic hyperactivity and hypertension. α2AR also influence vascular tension. These α2AR are malfunctioning in spontaneously hypertensive rats (SHR). Here I tested if an interaction between α2AR subtypes and the angiotensin AT1 receptor (AT1R) precipitated these disorders. Blood pres...
A landmark study by Habashi et al(1) in 2006 documented for the first time both the prevention and reversal of structural changes in the aorta associated with Marfan syndrome, via pharmacological means. This study, carried out in a rat model, concluded that such results were due to an inhibitor effect by the drug losartan on TGB-β1 (Figure 1). Habashi's paper prompted some physicians, in the ab...
OBJECTIVE The aim was to study the effect of the AT1 receptor antagonist losartan on hemodynamic and morphometric changes following experimental infarction. METHODS Experimental infarction was produced in adult male rats by ligating the coronary artery. Treatment with losartan was compared to untreated controls, in rats with experimental infarction and sham-operated animals. RESULTS Infarct...
BACKGROUND Electrocardiographic left ventricular hypertrophy (LVH) predicts cardiovascular morbidity and mortality, and regression of ECG LVH may predict improved prognosis in hypertensive patients. However, uncertainty persists as to how best to regress ECG LVH. METHODS AND RESULTS Regression of ECG LVH with losartan versus atenolol therapy was assessed in 9193 hypertensive patients with ECG...
INTRODUCTION Recent study has shown that renin-angiotensin system plays an important role in the development of acute lung injury (ALI) with high level of angiotensin II (AngII) generated form AngI catalyzed by angiotensin-converting enzyme. AngII plays a major effect mainly through AT1 receptor. Therefore, we speculate inhibition of AT1 receptor may possibly attenuate the lung injury. Losartan...
BACKGROUND While there is an evidence that the anti-inflammatory properties of spironolactone can attenuate proteinuria in type 2 diabetes, its effects on vascular endothelial growth factor (VEGF) expression in diabetic nephropathy have not been clearly defined. In this study, we examined the effects of spironolactone, losartan, and a combination of these two drugs on albuminuria, renal VEGF ex...
AIMS To evaluate the benefit of adding Losartan to baseline therapy in patients with Marfan syndrome (MFS). METHODS AND RESULTS A double-blind, randomized, multi-centre, placebo-controlled, add on trial comparing Losartan (50 mg when <50 kg, 100 mg otherwise) vs. placebo in patients with MFS according to Ghent criteria, age >10 years old, and receiving standard therapy. 303 patients, mean age...
A square-wave voltammetric procedure for the electroanalytical determination of losartan and triamterene in Britton-Robinson buffer (pH 3.0, 0.1 mol L(-1)) as a supporting electrolyte containing 30 ng mL(-1) of copper ions was developed. Opposite to the case of triamterene, losartan can not be reduced at a mercury electrode alone, but a new peak appears at -0.25 V in the presence of copper due ...
BACKGROUND A fixed-dose combination (FDC) of amlodipine and losartan has been used to reduce blood pressure in patients whose hypertension is not sufficiently controlled with either drug alone. The aim of this study was to evaluate the pharmacokinetic (PK) characteristics and tolerability of an FDC of 6.94 mg amlodipine besylate (5 mg as amlodipine)/50 mg losartan potassium compared to an FDC o...
Blockade of brain "ouabain" prevents the sympathetic hyperactivity and impairment of baroreflex function in rats with congestive heart failure (CHF). Because brain "ouabain" may act by activating the brain renin-angiotensin system (RAS), the aim of the present study was to assess whether chronic treatment with the AT1-receptor blocker losartan given centrally normalizes the sympathetic hyperact...
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