Endothelin-1-like immunoreactivity in a new rodent model of spontaneous hypertension.

Abstract:

:The purpose of this study was to determine plasma and tissue endothelin-1 (ET-1)-like immunoreactivity in a new rodent model of spontaneous hypertension. Plasma and tissues were procured from pentobarbital-anesthetized 16- to 18-week-old male hamsters with spontaneous hypertension and genetically/age-matched normotensive hamsters. We found that ET-1-like immunoreactivity in the plasma was similar in both groups. However, renal and cardiac ET-1-like immunoreactivity was 11- and 1.7-fold higher in spontaneously hypertensive hamsters relative to normotensive hamsters, respectively (P < .05). ET-1-like immunoreactivity was slightly, but significantly, lower in the lung and spleen of spontaneously hypertensive hamsters relative to normotensive hamsters (P < .05). ET-1-like immunoreactivity in the liver and brain was similar in both groups. We conclude that ET-1-like immunoreactivity is significantly higher in two target organs for hypertension, kidney and heart, but not in plasma or brain of adult male hamsters with spontaneous hypertension, relative to genetically/age-matched normotensive hamsters. We suggest that renal and cardiac ET-1 could play a role in the natural history of spontaneous hypertension in hamsters.

journal_name

Am J Hypertens

authors

Gulati A,Artwohl JE,Kumar A,Gao XP,Rubinstein I

doi

10.1016/s0895-7061(98)00047-8

subject

Has Abstract

pub_date

1998-07-01 00:00:00

pages

866-9

issue

7

eissn

0895-7061

issn

1941-7225

pii

S0895-7061(98)00047-8

journal_volume

11

pub_type

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