Occurrence and distribution of atrial natriuretic peptide-containing cells in the left ventricle of hypertensive rats

Autor: Victor Belkin, Jutta Schaper, Wolfgang Schaper, Ella Kaganovsky, Yael Barhum, Gania Kessler-Icekson
Rok vydání: 2001
Předmět:
Zdroj: Cell and Tissue Research. 303:57-67
ISSN: 1432-0878
0302-766X
Popis: In the ventricles of adult mammalian hearts, production of atrial natriuretic peptide (ANP) is negligible, restricted to the impulse-conducting cells, the papillary muscles, and a minority of subendocardial myocytes. ANP expression is reinduced in the ventricles of pressure-overloaded and failing hearts and is frequently used as a marker for myocyte hypertrophy. Using an immunohistochemical approach, we have characterized the size distribution of ANP-containing myocytes in the left ventricle of the spontaneously hypertensive rat (SHR) before and after chronic antihypertensive therapy and compared the results to age-matched normotensive Wistar rats (WR). Our findings show that in SHR the frequency of cells presenting ANP granularity is positively correlated with myocyte size (r=0.746, P
Databáze: OpenAIRE