Abstract

Upright standing is associated with a substantial decrease in plasma volume. This postural decrease in plasma volume is due to a shift in fluid from the intravascular space to the interstitium. The magnitude of this fluid shift may be related to the amount of subcutaneous tissue which has a relatively low interstitial pressure. The profound increase is subcutaneous tissue observed in obesity may lead to an increased loss of plasma volume upon standing. An increased postural plasma volume loss in obesity may be compensated for by release of catecholamines and activation of the renin-angiotensin-aldosterone system. Dynamic postural plasma volume loss may also concentrate blood consituents which could increase coaguability of blood. These responses may contribute to an acutely incfreased cardiovascular risk and chronic changes of cardiovascular structure in obese subjects. It is also possible that agents which alter tone in the vasculature may increase or decrease plasma colume loss on standing.

  Funding Agency

Agency
National Institute of Health (NIH)
Institute
National Center for Research Resources (NCRR)
Type
General Clinical Research Centers Program (M01)
Project #
5M01RR000095-41
Application #
6423901
Study Section
Project Start
2000-12-01
Project End
2001-11-30
Budget Start
Budget End
Support Year
41
Fiscal Year
2001
Total Cost
Indirect Cost

  Institution

Name
Vanderbilt University Medical Center
Department
Type
DUNS #
004413456
City
Nashville
State
TN
Country
United States
Zip Code
37203

  Publications

Kaltenbach, Karol; O'Grady, Kevin E; Heil, Sarah H et al. (2018) Prenatal exposure to methadone or buprenorphine: Early childhood developmental outcomes. Drug Alcohol Depend 185:40-49
Gupta, Samir K; Yeh, Eunice; Kitch, Douglas W et al. (2017) Bone mineral density reductions after tenofovir disoproxil fumarate initiation and changes in phosphaturia: a secondary analysis of ACTG A5224s. J Antimicrob Chemother 72:2042-2048
Gilchuk, Pavlo; Knight, Frances C; Wilson, John T et al. (2017) Eliciting Epitope-Specific CD8+ T Cell Response by Immunization with Microbial Protein Antigens Formulated with ?-Galactosylceramide: Theory, Practice, and Protocols. Methods Mol Biol 1494:321-352
Sebag, Sara C; Koval, Olha M; Paschke, John D et al. (2017) Mitochondrial CaMKII inhibition in airway epithelium protects against allergic asthma. JCI Insight 2:e88297
Chung, C P; Ormseth, M J; Connelly, M A et al. (2016) GlycA, a novel marker of inflammation, is elevated in systemic lupus erythematosus. Lupus 25:296-300
Towse, Theodore F; Childs, Benjamin T; Sabin, Shea A et al. (2016) Comparison of muscle BOLD responses to arterial occlusion at 3 and 7 Tesla. Magn Reson Med 75:1333-40
Joy, Nino G; Mikeladze, Maia; Younk, Lisa M et al. (2016) Effects of equivalent sympathetic activation during hypoglycemia on endothelial function and pro-atherothrombotic balance in healthy individuals and obese standard treated type 2 diabetes. Metabolism 65:1695-1705
Gilchuk, Pavlo; Hill, Timothy M; Guy, Clifford et al. (2016) A Distinct Lung-Interstitium-Resident Memory CD8(+) T Cell Subset Confers Enhanced Protection to Lower Respiratory Tract Infection. Cell Rep 16:1800-9
Jones, Hendrée E; Seashore, Carl; Johnson, Elisabeth et al. (2016) Measurement of neonatal abstinence syndrome: Evaluation of short forms. J Opioid Manag 12:19-23
Laird, Chris; Burdorf, Lars; Pierson 3rd, Richard N (2016) Lung xenotransplantation: a review. Curr Opin Organ Transplant 21:272-8

Showing the most recent 10 out of 515 publications