Uso conjunto de ibuprofeno e dinitrato de isosorbida melhora a estrutura cardíaca dos camundongos com distrofia muscular

12 de maio de 2013 by Izabel Gavinho

Itália – o ibuprofeno é um anti-inflamatório não hormonal bastante utilizado. O dinitrato de isosorbida é usado no tratamento de doenças cardíacas como a angina. O uso em conjunto destas drogas reduziu as alteraçoes patológicas do músculo cardíaco de camundongos com distrofia muscular.

O resumo em inglês pode ser lido abaixo:

(Pharmacological Research, 2013) Ibuprofen plus Isosorbide Dinitrate treatment in the mdx mice ameliorates dystrophic heart structure

Clara Sciorati, Lidia Staszewsky, Vanessa Zambelli, Ilaria Russo, Monica Salio, Deborah Novelli, Giuseppe Di Grigoli, Rosa Maria Moresco, Emilio Clementi, Roberto Latini

Abstract
Background

Co-administration of ibuprofen (IBU) and isosorbide dinitrate (ISDN) provides synergistic beneficial effects on dystrophic skeletal muscle. Whether this treatment has also cardioprotective effects in this disease was still unknown. Aims: to evaluate the effects of co-administration of IBU and ISDN (a) on left ventricular (LV) structure and function, and (b) on cardiac inflammatory response and fibrosis in mdx mice.

Methods
Three groups of mice were studied: mdx mice treated with IBU (50 mg kg−1) + ISDN (30 mg kg−1) administered daily in the diet, mdx mice that received standard diet without drugs and wild type aged-matched mice. Animals were analysed after 10-11 months of treatment. Structural and functional parameters were evaluated by echocardiography while histological analyses were performed to evaluate inflammatory response, collagen deposition, cardiomyocyte number and area.

Results
Treatment for 10-11 months with IBU + ISDN preserved LV wall thickness and LV mass. Drug treatment also preserved the total number of cardiomyocytes in the LV and attenuated the increase in cardiomyocyte size, when compared to untreated mdx mice. Moreover, a trend towards a decreased number of inflammatory cells, a reduced LV myocardial interstitial fibrosis and an enhanced global LV function response to stress was observed in treated mdx mice.

Conclusions
Treatment for 10-11 months with IBU + ISDN is effective in preventing the alterations in LV morphology of mdx mice while not reaching statistical significance on LV function and cardiac inflammation.

Fonte: http://distrofiamuscular.net/noticias.htm

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