? Generation of an experimental model of hypertension in the rat. Reflecting the focus of the PPG on clinically relevant cellular ionic events and their role in myogenic vascular tone, the model of choice will be the ouabain hypertensive rat. This induced form of hypertension along with matched controls will provide a source of various vascular preparations including intact arteries and vascular cells. ? Measurement of endogenous and exogenous ouabain (and other compounds) in the circulation of animals. ? Preparation of acutely dissociated myocytes from rat and mice arterioles. ? Breeding and genotyping of transgenic mice. The primary purpose of the Core is three fold. First it will provide new and/or unique tools for extensive use by the various projects of the PPG. Each of the tools and resources to be provided is directly related to the aims of the PPG projects. As such, the core will serve an essential role by providing tools and reagents on a routine basis that would otherwise prove to be burdensome and/or beyond the expertise of the individual projects of the PPG. Second, the core will serve to coordinate the activities of the PPG projects so that the various reagents and preparations can be studied (when appropriate) simultaneously by different methods in the each of the PPG projects. Third, the core will promote the most efficient generation and use of tools by the PPG investigators Considerable experience exists within the PPG - all investigators have very extensive and published expertise with the various vascular preparations proposed. Dr. Hamlyn is one of the originators (with Drs. Yuan, Pamnani and Haddy) of the hypertensive rat model used in the program. He has over ten years of hands on experience with the model (more than any other investigator worldwide) and is the only individual in the PPG with detailed knowledge and experience of the model paradigm. Dr. Golovina has extensive experience with the cellular and molecular methods.

Agency
National Institute of Health (NIH)
Institute
National Heart, Lung, and Blood Institute (NHLBI)
Type
Research Program Projects (P01)
Project #
5P01HL078870-05
Application #
7858350
Study Section
Heart, Lung, and Blood Initial Review Group (HLBP)
Project Start
Project End
Budget Start
2009-07-01
Budget End
2010-06-30
Support Year
5
Fiscal Year
2009
Total Cost
$268,444
Indirect Cost
Name
University of Maryland Baltimore
Department
Type
DUNS #
188435911
City
Baltimore
State
MD
Country
United States
Zip Code
21201
Chen, Ling; Song, Hong; Wang, Youhua et al. (2015) Arterial ?2-Na+ pump expression influences blood pressure: lessons from novel, genetically engineered smooth muscle-specific ?2 mice. Am J Physiol Heart Circ Physiol 309:H958-68
Simonini, Marco; Lanzani, Chiara; Bignami, Elena et al. (2014) A new clinical multivariable model that predicts postoperative acute kidney injury: impact of endogenous ouabain. Nephrol Dial Transplant 29:1696-701
Song, Hong; Karashima, Eiji; Hamlyn, John M et al. (2014) Ouabain-digoxin antagonism in rat arteries and neurones. J Physiol 592:941-69
Pulina, Maria V; Zulian, A; Baryshnikov, Sergey G et al. (2013) Cross talk between plasma membrane Na(+)/Ca (2+) exchanger-1 and TRPC/Orai-containing channels: key players in arterial hypertension. Adv Exp Med Biol 961:365-74
Bignami, Elena; Casamassima, Nunzia; Frati, Elena et al. (2013) Preoperative endogenous ouabain predicts acute kidney injury in cardiac surgery patients. Crit Care Med 41:744-55
Zulian, Alessandra; Linde, Cristina I; Pulina, Maria V et al. (2013) Activation of c-SRC underlies the differential effects of ouabain and digoxin on Ca(2+) signaling in arterial smooth muscle cells. Am J Physiol Cell Physiol 304:C324-33
Blaustein, Mordecai P (2013) Livin' with NCX and lovin' it: a 45 year romance. Adv Exp Med Biol 961:3-15
Khurana, Sandeep; Raina, Hema; Pappas, Valeria et al. (2012) Effects of deoxycholylglycine, a conjugated secondary bile acid, on myogenic tone and agonist-induced contraction in rat resistance arteries. PLoS One 7:e32006
Jacobs, Brandiese E; Liu, Yong; Pulina, Maria V et al. (2012) Normal pregnancy: mechanisms underlying the paradox of a ouabain-resistant state with elevated endogenous ouabain, suppressed arterial sodium calcium exchange, and low blood pressure. Am J Physiol Heart Circ Physiol 302:H1317-29
Blaustein, Mordecai P; Leenen, Frans H H; Chen, Ling et al. (2012) How NaCl raises blood pressure: a new paradigm for the pathogenesis of salt-dependent hypertension. Am J Physiol Heart Circ Physiol 302:H1031-49

Showing the most recent 10 out of 52 publications