Effects of antihypertensive treatment on cardiac IGF-1 during prevention of ventricular hypertrophy in the rat

Jorge E. Jalil, Roberto Ebensperger, Jaime Meléndez, Erika Acevedo, Mario Sapag-Hagar, Fabían González-Jara, Anita Gálvez, Viviana Pérez-Montes, Sergio Lavandero

Résultat de rechercheexamen par les pairs

9 Citations (Scopus)

Résumé

There is some evidence that cardiac rather than circulating insulin- like growth factor-1 (IGF-1) levels contribute to the development of renovascular hypertensive left ventricular hypertrophy (LVH), remaining unknown the effects of antihypertensive drugs on IGF-1 levels. We have assessed here the preventive effects of enalapril, losartan, propanolol and α-methyldopa on left ventricle (LV) and circulating IGF-1 levels in a rat model of hypertension and LVH (Goldblatt, GB). Our results show that relative LV mass and the LV content of IGF-1 were significantly lower with all antihypertensive drags in GB rats (p<0.001). Serum concentrations of IGF-1 were lower in GB rats treated with enalapril, α-methyldopa and propanolol (p<0.01), but not in those treated with losartan. These results support the hypothesis that local rather than seric IGF-1 contributes to the development of left ventricular hypertrophy induced by pressure overload in the rat.

Langue d'origineEnglish
Pages (de-à)1603-1612
Nombre de pages10
JournalLife Sciences
Volume64
Numéro de publication18
DOI
Statut de publicationPublished - mars 26 1999

Financement

We thank to Professor C.I. Pogson for his critical review of the manuscript. This work was supportedin part by Fondo NacionaI de Ciencia y Tecnologia (FONDECYT) Grants 1930592a nd 1950452.

Bailleurs de fondsNuméro du bailleur de fonds
Fondo Nacional de Ciencia y Tecnología1950452

    ASJC Scopus Subject Areas

    • General Pharmacology, Toxicology and Pharmaceutics
    • General Biochemistry,Genetics and Molecular Biology

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