Abstract

Studies at our center have indicated that normal subjects receiving a high-salt diet had lower plasma concentrations of quinidine than when they were receiving a low-salt diet. The mechanism underlying this effect is unknown. Recent studies in other laboratories have suggested that salt loading may increase expression of cytochrome P450 involved in the renal metabolism of eicosanoids. However, no data are available on the effects of salt loading on hepatic P450-mediated drug metabolism. Our data with quinidine are consistent with the hypothesis that salt loading increases P450 activity, thereby accounting for decreased concentrations in salt-loaded subjects. This study is designed to elucidate the formal pharmacokinetics of quinidine with salt loading and salt restriction. These data will then allow further studies of underlying mechanism(s).

  Funding Agency

Agency
National Institute of Health (NIH)
Institute
National Center for Research Resources (NCRR)
Type
General Clinical Research Centers Program (M01)
Project #
5M01RR000095-36
Application #
5219425
Study Section
Project Start
Project End
Budget Start
Budget End
Support Year
36
Fiscal Year
1996
Total Cost
Indirect Cost

  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
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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

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