Linked Life Data

16801480

Source:http://linkedlifedata.com/resource/pubmed/id/16801480

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
2006-8-18
pubmed:abstractText
Angiotensin II regulates blood pressure via activation of the type 1 receptor. We previously identified a novel angiotensin II type 1 receptor-associated protein and demonstrated that it promotes receptor recycling to the plasma membrane. To delineate the pathophysiological function of the ARAP1 in the kidneys, we generated transgenic mice that overexpress rat ARAP1 cDNA specifically in proximal tubules and tested the hypothesis that proximal tubule-specific overexpression of ARAP1 causes hypertension. Two lines of male transgenic mice, 650 and 670, displayed kidney-specific transgene expression. Systolic blood pressure was significantly elevated by &20 to 25 mm Hg in these lines of mice at 20 weeks of age compared with their nontransgenic litter mates. Urine volume, but not water intake, was significantly decreased in both lines compared with nontransgenic controls. The kidney/body weight ratio was significantly increased in both lines compared with their nontransgenic litter mates at 12 and 20 weeks of age. In contrast, no difference was observed in the ratio of brain, spleen, heart, and testis to body weight between male transgenic and nontransgenic animals. Inhibitions of the renin-angiotensin system completely normalized the systolic blood pressure of transgenic mice. Moreover, low salt intake prevented the development of hypertension, whereas high salt intake exacerbated the increase in blood pressure in transgenic mice. Therefore, our data show that proximal tubule-specific overexpression of ARAP1 leads to hypertension, suggesting that renal ARAP1 plays an important role in the regulation of blood pressure and renal function via activation of the intrarenal renin-angiotensin system.
pubmed:grant
pubmed:commentsCorrections
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
1524-4563
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
48
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
453-9
pubmed:dateRevised
2011-8-31
pubmed:meshHeading
pubmed-meshheading:16801480-Adaptor Proteins, Signal Transducing, pubmed-meshheading:16801480-Aging, pubmed-meshheading:16801480-Animals, pubmed-meshheading:16801480-Blood Pressure, pubmed-meshheading:16801480-Diuresis, pubmed-meshheading:16801480-Dose-Response Relationship, Drug, pubmed-meshheading:16801480-Drug Implants, pubmed-meshheading:16801480-Epithelial Sodium Channel, pubmed-meshheading:16801480-Female, pubmed-meshheading:16801480-Hematocrit, pubmed-meshheading:16801480-Hypertension, pubmed-meshheading:16801480-Hypertrophy, pubmed-meshheading:16801480-Kidney, pubmed-meshheading:16801480-Male, pubmed-meshheading:16801480-Mice, pubmed-meshheading:16801480-Mice, Transgenic, pubmed-meshheading:16801480-RNA, Messenger, pubmed-meshheading:16801480-Rats, pubmed-meshheading:16801480-Sodium Channels, pubmed-meshheading:16801480-Sodium Chloride, Dietary, pubmed-meshheading:16801480-Testosterone, pubmed-meshheading:16801480-Tissue Distribution
pubmed:year
2006
pubmed:articleTitle
Development of hypertension and kidney hypertrophy in transgenic mice overexpressing ARAP1 gene in the kidney.
pubmed:affiliation
Research Centre, Centre hospitalier de l'Université de Montréal, Hôtel-Dieu, Pavillon Masson, 3850 Saint Urbain St, Montreal, Quebec, Canada H2W 1T8. guod@magellan.umontreal.ca
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't, Research Support, N.I.H., Extramural