Results: 164

In vivo and in vitro anti-inflammatory activity of Cryptostegia grandiflora Roxb. ex R. Br. leaves

Biol. Res; 47 (), 2014
BACKGROUND: Despite Cryptostegia grandiflora Roxb. ex R. Br. (Apocynaceae) leaves are widely used in folk Caribbean Colombian medicine for their anti-inflammatory effects, there are no studies that support this traditional use. Therefore, this work aimed to evaluate the effect of the total extract and pr...

Effect of exogenous nitric oxide on sperm motility in vitro

Biol. Res; 47 (), 2014
BACKGROUND: Nitric oxide (NO) has been shown to be important in sperm function, and the concentration of NO appears to determine these effects. Studies have demonstrated both positive and negative effects of NO on sperm function, but have not been able to provide a clear link between NO concentration and...

Avaliação do status de magnésio e da sua associação com o estresse oxidativo e as citocinas inflamatórias na pré-eclâmpsia

O objetivo deste trabalho foi avaliar o status de magnésio (Mg) e a sua relação com o estresse oxidativo e as citocinas inflamatórias na pré-eclâmpsia (PE). Participaram do estudo, 18 gestantes saudáveis (controle - CT) e 18 gestantes com PE, diagnosticadas com pressão arterial >= 140/90 mmHg, pr...

Croton schiedeanus Schltd prevents experimental hypertension in rats induced by nitric oxide deficit

Braz. j. pharm. sci; 49 (4), 2013
Croton schiedeanus Schltd (N.V.: "almizclillo") is a plant used in traditional medicine as an antihypertensive in Colombia. It contains flavonoid, diterpenoid and fenilbutanoid metabolites that have vasodilatation effects linked to the NO/cGMP pathway. This work aimed to assess the capacity of a 96% EtOH...

Nitric oxide releasing-dendrimers: an overview

Braz. j. pharm. sci; 49 (spe), 2013
Platforms able to storage, release or scavenge NO in a controlled and specific manner is interesting for biological applications. Among the possible matrices for these purposes, dendrimers are excellent candidates for that. These molecules have been used as drug delivery systems and exhibit interesting p...

El sistema renina angiotensina y el estrés oxidativo en un modelo experimental de preeclampsia en ratas

La preeclampsia es un síndrome exclusivo de la gestación humana y responsable de una alta morbimortalidad perinatal, cuyas manifestaciones incluyen: hipertensión arterial, proteinuria y edema. Un mecanismo postulado en la fisiopatología de la preeclampsia, es la reducción de la perfusión placentari...

L-arginine, a nitric oxide precursor, reduces dapsone-induced methemoglobinemia in rats

Braz. j. pharm. sci; 48 (1), 2012
Dapsone use is frequently associated to hematological side effects such as methemoglobinemia and hemolytic anemia, which are related to N-hydroxylation mediated by the P450 enzyme system. The aim of the present study was to evaluate the influence of L-arginine supplementation, a precursor for the synthes...

Efeitos da restrição calórica nas vias de sinalização por insulina e óxido nítrico: implicações para biogênese, morfologia e função mitocondriais

A restrição calórica (RC) estende a expectativa de vida de muitos organismos por mecanismos ainda em estudo. Entre os vários efeitos fisiológicos da RC encontra-se o aumento na biogênese mitocondrial, dependente de óxido nítrico (NO•), sintetizado pela enzima óxido nítrico sintase endotelial ...

Papel de la sensibilidad a la sal y los polimorfismos genéticos como determinantes de la modificación de los factores de riesgo cardiovascular durante la pérdida de peso en sujetos con sobrepeso u obesidad

El incremento de la ingesta de sal no siempre se acompaña de un aumento en la presión arterial; aquellos sujetos que así lo hacen, son denominados Sal Sensibles (SS), mientras que los que no, se denominan Sal Resistentes (SR). La sensibilidad a la sal se ha asociado con mayor riesgo cardiometabólico ...

Side effects of cyclosporine-A treatment in rats: gingival overgrowth and early hyperglycemia

Acta odontol. latinoam; 23 (3), 2010
Gingival overgrowth is an adverse side effect of cyclosporine A (CsA) in the treatment of transplanted patients. The purpose of this study was to evaluate the effects of CsA on new-onset diabetes mellitus and gingival overgrowth in rats, by measuring collagen, nitric oxide and microvascular permeability....