19-Nor deoxycorticosterone (19-nor-DOC) is a recently identified powerful nineralocorticoid. We have found that the urinary excretation of 19-nor-DOC is increased in rats with adrenal regeneration hpertension and others have found it markedly elevated in the pre-hypertensive stage of the spontaneously hypertensive rat (SHR). We propose to study the chronology of increased excretion rates of 19-nor-DOC in the urine and the precursor, 19-oic-DOC, in the plasma of rats during the development of ARH. The adrenal synthesis and regulation of 19-oic DOC will also be studied using in vivo and in vitro techniques. The peripheral conversion of 19-oic-DOC into 19-nor-DOC will also be studied by incubating various organs with (3H)-19-oic-DOC and measuring the formation of (3H)-19-nor-DOC. In addition, the role of 19-nor-DOC in the pathogenesis of two types of genetic hpertension, the SHR and Dahl's S & R strains of rats. Finally, we will search for the presence of other 19-oic-steroids in adrenal incubations. As standard methods of steroids almost guarantee the elimination of this type of steroid, it is not surprising that they have not been previously isolated.

Agency
National Institute of Health (NIH)
Institute
National Heart, Lung, and Blood Institute (NHLBI)
Type
Research Project (R01)
Project #
5R01HL027737-08
Application #
3339283
Study Section
Cardiovascular and Pulmonary Research B Study Section (CVB)
Project Start
1981-07-01
Project End
1991-06-30
Budget Start
1988-07-01
Budget End
1991-06-30
Support Year
8
Fiscal Year
1988
Total Cost
Indirect Cost
Name
University of South Florida
Department
Type
Schools of Medicine
DUNS #
City
Tampa
State
FL
Country
United States
Zip Code
33612
Gomez-Sanchez, Elise P (2016) Third-generation Mineralocorticoid Receptor Antagonists: Why Do We Need a Fourth? J Cardiovasc Pharmacol 67:26-38
Gomez-Sanchez, Elise P (2015) Salt-sensitive hypertension: food for thought. Hypertension 65:283-4
Gomez-Sanchez, Elise; Gomez-Sanchez, Celso E (2014) The multifaceted mineralocorticoid receptor. Compr Physiol 4:965-94
Gomez-Sanchez, Elise P (2014) Brain mineralocorticoid receptors in cognition and cardiovascular homeostasis. Steroids 91:20-31
Gomez-Sanchez, Elise P; Gomez-Sanchez, Celso E (2012) Central regulation of blood pressure by the mineralocorticoid receptor. Mol Cell Endocrinol 350:289-98
Gomez-Sanchez, Elise P (2011) Mineralocorticoid receptors in the brain and cardiovascular regulation: minority rule? Trends Endocrinol Metab 22:179-87
Gomez Sanchez, Elise P (2009) Central mineralocorticoid receptors and cardiovascular disease. Neuroendocrinology 90:245-50
Gomez-Sanchez, Elise P; Samuel, Jacqueline; Vergara, Gaston et al. (2005) Effect of 3beta-hydroxysteroid dehydrogenase inhibition by trilostane on blood pressure in the Dahl salt-sensitive rat. Am J Physiol Regul Integr Comp Physiol 288:R389-93
Gomez-Sanchez, Elise P; Ahmad, Naveed; Romero, Damian G et al. (2005) Is aldosterone synthesized within the rat brain? Am J Physiol Endocrinol Metab 288:E342-6
Gomez-Sanchez, Elise P; Ahmad, Naveed; Romero, Damian G et al. (2004) Origin of aldosterone in the rat heart. Endocrinology 145:4796-802

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