作者: Mark C. Hanson , Kenneth A. Fath , R. Wayne Alexander , P. Delafontaine
DOI: 10.1097/00000441-199308000-00001
关键词: Ventricular pressure 、 Muscle hypertrophy 、 Insulin-like growth factor 、 Gene expression 、 Biology 、 Internal medicine 、 Growth factor 、 Pressure overload 、 Endocrinology 、 Somatomedin 、 Left ventricular hypertrophy
摘要: Molecular mechanisms regulating the cardiac hypertrophic response to increased hemodynamic load are understood poorly. Insulin-like growth factor I (IGF I) is a mitogen that is thought to play a key role in pre-and postnatal growth. To investigate a possible role of IGF I in the cardiac response to pressure overload, rats underwent banding of the ascending aorta immediately above the aortic valve using a hemoclip, or a sham procedure. An analysis of left-ventricular RNA by Northern hybridization using a 32 P-labeled IGF I cDNA …