Maria Ondina Paganelli

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BACKGROUND Hypertension is the most prevalent and significant modifiable risk factor for coronary heart disease. A portion of patients with uncontrolled hypertension are considered to have resistant hypertension (RHTN). Myocardial ischemia incidence increases along with blood pressure (BP) levels. However, the prevalence of myocardial ischemia in patients(More)
The solubility behavior of drugs remains one of the most challenging aspects in formulation development. Solid Dispersion (SD) has tremendous potential for improving drug solubility. Although praziquantel (PZQ) is the first drug of choice in the treatment of schistosomiasis, its poor solubility has restricted its delivery oral route. In spite of its poor(More)
White-coat hypertension (WCH), commonly found in pseudoresistant hypertension, does not pose higher cardiovascular risk than hypertensive status. However, when the decrease of the out-of-office blood pressure does not reach normal levels - the white-coat effect (WCE) - the repercussions are still obscure. We investigated the repercussions of the WCE in(More)
BACKGROUND Arginine vasopressin (AVP) has been broadly used in the management of vasodilatory shock. However, there are many concerns regarding its clinical use, especially in high doses, as it can be associated with adverse cardiovascular events. OBJECTIVE To investigate the cardiovascular effects of AVP in continuous IV infusion on hemodynamic(More)
Nicotine may contribute to smoking-induced endothelial dysfunction because of its ability to impair endothelium-dependent vasodilatation. We investigated whether the acute administration of nicotine changes the hypotensive responses to bradykinin in rats. The effects of pre-treatment with losartan or enalapril on the nicotine-induced changes in the(More)
Bupropion is a non-nicotinic drug used in smoking cessation therapy. However, its acute effects remain unclear. In this study, we investigated the effects of bupropion on hemodynamic parameters in pentobarbital-anesthetized mongrel dogs. Bupropion administered either in bolus injections (3 or 6 mg/kg, i.v.) or in cumulative doses of 0.01, 0.1, 1, 3 and 10(More)
Bupropion has been used to treat psychic depression and as a therapy for smoking cessation, the latter mainly in association with nicotine. However, there have been no detailed studies of the hemodynamic effects of the association of bupropion with nicotine during replacement therapy. In this study, we evaluated the effects of such an association on the(More)
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