Journal article
Identification of Vasopressin mRNA in Rat Aorta
Hypertension (Dallas, Tex. 1979), Vol.25(5), pp.1030-1033
05/1995
DOI: 10.1161/01.HYP.25.5.1030
PMID: 7737711
Abstract
We have reported previously that several blood vessels of the rat and cow contain immunoreactive vasopressin and further suggested that this peptide might be produced locally. To provide additional support for this hypothesis, we conducted the present study to determine whether mRNA for arginine vasopressin is also present in blood vessels. Ribonuclease protection analysis of total RNA isolated from rat hypothalamus and aorta revealed the presence of arginine vasopressin message in both tissues but not in RNA isolated from liver, a tissue devoid of vasopressin. Subsequent comparison of the autoradiographic intensities of the signals in these two tissues indicated that vasopressin message was 100- to 1000-fold lower in aorta. Additional studies showed that RNA isolated from endothelium-denuded vessels contained levels of arginine vasopressin message similar to those in intact vessels, indicating that endothelium was not a major source of this message. These data were substantiated by further studies using a vasopressin radioimmunoassay, which showed that vasopressin peptide levels in intact and endothelium-denuded vessels did not differ. Thus, the present study showed that rat aorta contains arginine vasopressin mRNA as well as the vasopressin peptide and that both the message and the peptide are contained in nonendothelial structures. However, the data do not rule out endothelium as a possible source of vasopressin. These studies add further support to the hypothesis that blood vessels are capable of producing vasopressin. (Hypertension. 1995;25:1030-1033.)
Details
- Title: Subtitle
- Identification of Vasopressin mRNA in Rat Aorta
- Creators
- Jason Simon - Received May 30, 1994; first decision September 21, 1994; revision accepted January 3, 1995. From the Department of Pharmacology and the Cardiovascular Center, The University of Iowa College of Medicine, Iowa City. Reprint requests to Barry G. Kasson, PhD, Department of Pharmacology, College of Medicine, University of Iowa, Iowa City, IA 52242Barry G Kasson
- Resource Type
- Journal article
- Publication Details
- Hypertension (Dallas, Tex. 1979), Vol.25(5), pp.1030-1033
- Publisher
- American Heart Association, Inc
- DOI
- 10.1161/01.HYP.25.5.1030
- PMID
- 7737711
- ISSN
- 0194-911X
- eISSN
- 1524-4563
- Language
- English
- Date published
- 05/1995
- Academic Unit
- Neuroscience and Pharmacology
- Record Identifier
- 9984040546802771
Metrics
18 Record Views