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Artículo

Long-term effects of growth hormone on infarct size and left ventricular function in sheep with coronary artery occlusion

Olea, Fernanda DanielaIcon ; De Lorenzi, Andrea; Cortés, Claudia; Cabeza Meckert, Patricia; Cendoya, Oscar; Barra, Juan G.; Bercovich, Andrés; González, Eliseo; Laguens, RubénIcon ; Crottogini, Alberto JoséIcon
Fecha de publicación: 03/2010
Editorial: Lippincott Williams
Revista: Journal Of Cardiovascular Pharmacology
ISSN: 0160-2446
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Sistemas Cardíaco y Cardiovascular

Resumen

The effects of growth hormone (GH) on infarct size and left ventricular (LV) function in experimental acute myocardial infarction (AMI) have been controversial. Moreover, little, if any, information exists regarding long-term evaluation of therapeutic doses of GH in large mammalian models of AMI. We therefore aimed to assess the effect of therapeutic doses of GH over 3.5 months on infarct size and heart function in sheep with AMI. After coronary artery ligation, sheep received subcutaneous human GH 8 IU/d (n = 8) or vehicle (n = 8) over 100 days. Infarct area was similar in GH (16.9% 6 3% of LV area) and placebo (16.5% 6 3.7%, P = not significant) sheep. At 3 days of treatment onset, but not at later times, GH sheep had higher LV shortening fraction (30.7% 6 3.5% vs. 24.8% 6 6.1%, P , 0.04), systolic anterior wall thickness (10.1 6 0.8 vs. 8.6 6 1.2 mm, P , 0.02), and cardiac index (3.8 6 0.6 vs. 2.8 6 0.7 L min21 m22 , P , 0.01). This evolution of function parameters paralleled that of serum insulin-like growth factor 1 levels, which differed significantly only during the first week, suggesting a direct effect of GH on LV contractility. These results may suggest the usefulness of therapeutic doses of GH at the early phases of AMI but do not support maintaining the treatment for longer time.
Palabras clave: GROWTH HORMONE , ACUTE MYOCARDIAL INFARCTION , INFARCT SIZE , SHEEP
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info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
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URI: http://hdl.handle.net/11336/104270
URL: https://pubmed.ncbi.nlm.nih.gov/20051878/
DOI: http://dx.doi.org/10.1097/FJC.0b013e3181cf9190
URL: https://journals.lww.com/cardiovascularpharm/Abstract/2010/03000/Long_Term_Effec
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Citación
Olea, Fernanda Daniela; De Lorenzi, Andrea; Cortés, Claudia; Cabeza Meckert, Patricia; Cendoya, Oscar; et al.; Long-term effects of growth hormone on infarct size and left ventricular function in sheep with coronary artery occlusion; Lippincott Williams; Journal Of Cardiovascular Pharmacology; 55; 3; 3-2010; 255-261
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