Abstract

Microgravity produces three fundamental changes in human subjects: (a) a cephalad fluid shift; (b) altered proprioceptive, visual and vestibular sensory input; and (c) an unloaded musculoskeletal system. These perturbations produce complex and interdependent alterations which ultimately allow adaptation to microgravity. We suggest that the effect of these multiple, seemingly disparate influences on the autonomic nervous system produces the altered sympathetic activity suggested by recent studies in space. The overall goal of this proposal is to test the hypothesis that microgravity markedly alters sympathetic nervous system activity, and to define more precisely the consequences of microgravity on autonomic mechanisms of cardiovascular regulation, including sympathetic outflow, neural norepinephrine release and clearance, and postsynaptic receptor sensitivity. The study is ongoing.

  Funding Agency

Agency
National Institute of Health (NIH)
Institute
National Center for Research Resources (NCRR)
Type
General Clinical Research Centers Program (M01)
Project #
5M01RR000095-40
Application #
6305753
Study Section
Project Start
1999-12-01
Project End
2000-11-30
Budget Start
Budget End
Support Year
40
Fiscal Year
2000
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
Laird, Chris; Burdorf, Lars; Pierson 3rd, Richard N (2016) Lung xenotransplantation: a review. Curr Opin Organ Transplant 21:272-8
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

Showing the most recent 10 out of 515 publications