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Research ArticleEndocrine and Diabetes

Maternal-Fetal Disposition of Glyburide in Pregnant Mice Is Dependent on Gestational Age

Diana L. Shuster, Linda J. Risler, Chao-Kang J. Liang, Kenneth M. Rice, Danny D. Shen, Mary F. Hebert, Kenneth E. Thummel and Qingcheng Mao
Journal of Pharmacology and Experimental Therapeutics August 2014, 350 (2) 425-434; DOI: https://doi.org/10.1124/jpet.114.213470
Diana L. Shuster
Departments of Pharmaceutics (D.L.S., L.J.R., D.D.S., K.E.T., Q.M.) and Pharmacy (D.D.S., M.F.H.), School of Pharmacy, University of Washington, Seattle, Washington; Department of Biostatistics, School of Public Health, University of Washington, Seattle, Washington (C.-K.J.L., K.M.R.); and Department of Obstetrics and Gynecology, School of Medicine (M.F.H.), University of Washington, Seattle, Washington
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Linda J. Risler
Departments of Pharmaceutics (D.L.S., L.J.R., D.D.S., K.E.T., Q.M.) and Pharmacy (D.D.S., M.F.H.), School of Pharmacy, University of Washington, Seattle, Washington; Department of Biostatistics, School of Public Health, University of Washington, Seattle, Washington (C.-K.J.L., K.M.R.); and Department of Obstetrics and Gynecology, School of Medicine (M.F.H.), University of Washington, Seattle, Washington
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Chao-Kang J. Liang
Departments of Pharmaceutics (D.L.S., L.J.R., D.D.S., K.E.T., Q.M.) and Pharmacy (D.D.S., M.F.H.), School of Pharmacy, University of Washington, Seattle, Washington; Department of Biostatistics, School of Public Health, University of Washington, Seattle, Washington (C.-K.J.L., K.M.R.); and Department of Obstetrics and Gynecology, School of Medicine (M.F.H.), University of Washington, Seattle, Washington
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Kenneth M. Rice
Departments of Pharmaceutics (D.L.S., L.J.R., D.D.S., K.E.T., Q.M.) and Pharmacy (D.D.S., M.F.H.), School of Pharmacy, University of Washington, Seattle, Washington; Department of Biostatistics, School of Public Health, University of Washington, Seattle, Washington (C.-K.J.L., K.M.R.); and Department of Obstetrics and Gynecology, School of Medicine (M.F.H.), University of Washington, Seattle, Washington
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Danny D. Shen
Departments of Pharmaceutics (D.L.S., L.J.R., D.D.S., K.E.T., Q.M.) and Pharmacy (D.D.S., M.F.H.), School of Pharmacy, University of Washington, Seattle, Washington; Department of Biostatistics, School of Public Health, University of Washington, Seattle, Washington (C.-K.J.L., K.M.R.); and Department of Obstetrics and Gynecology, School of Medicine (M.F.H.), University of Washington, Seattle, Washington
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Mary F. Hebert
Departments of Pharmaceutics (D.L.S., L.J.R., D.D.S., K.E.T., Q.M.) and Pharmacy (D.D.S., M.F.H.), School of Pharmacy, University of Washington, Seattle, Washington; Department of Biostatistics, School of Public Health, University of Washington, Seattle, Washington (C.-K.J.L., K.M.R.); and Department of Obstetrics and Gynecology, School of Medicine (M.F.H.), University of Washington, Seattle, Washington
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Kenneth E. Thummel
Departments of Pharmaceutics (D.L.S., L.J.R., D.D.S., K.E.T., Q.M.) and Pharmacy (D.D.S., M.F.H.), School of Pharmacy, University of Washington, Seattle, Washington; Department of Biostatistics, School of Public Health, University of Washington, Seattle, Washington (C.-K.J.L., K.M.R.); and Department of Obstetrics and Gynecology, School of Medicine (M.F.H.), University of Washington, Seattle, Washington
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Qingcheng Mao
Departments of Pharmaceutics (D.L.S., L.J.R., D.D.S., K.E.T., Q.M.) and Pharmacy (D.D.S., M.F.H.), School of Pharmacy, University of Washington, Seattle, Washington; Department of Biostatistics, School of Public Health, University of Washington, Seattle, Washington (C.-K.J.L., K.M.R.); and Department of Obstetrics and Gynecology, School of Medicine (M.F.H.), University of Washington, Seattle, Washington
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Abstract

Gestational diabetes mellitus is a major complication of human pregnancy. The oral clearance (CL) of glyburide, an oral antidiabetic drug, increases 2-fold in pregnant women during late gestation versus nonpregnant controls. In this study, we examined gestational age–dependent changes in maternal-fetal pharmacokinetics (PK) of glyburide and metabolites in a pregnant mouse model. Nonpregnant and pregnant FVB mice were given glyburide by retro-orbital injection. Maternal plasma was collected over 240 minutes on gestation days (gd) 0, 7.5, 10, 15, and 19; fetuses were collected on gd 15 and 19. Glyburide and metabolites were quantified using high-performance liquid chromatography–mass spectrometry, and PK analyses were performed using a pooled data bootstrap approach. Maternal CL of glyburide increased approximately 2-fold on gd 10, 15, and 19 compared with nonpregnant controls. Intrinsic CL of glyburide in maternal liver microsomes also increased as gestation progressed. Maternal metabolite/glyburide area under the curve ratios were generally unchanged or slightly decreased throughout gestation. Total fetal exposure to glyburide was <5% of maternal plasma exposure, and was doubled on gd 19 versus gd 15. Fetal metabolite concentrations were below the limit of assay detection. This is the first evidence of gestational age–dependent changes in glyburide PK. Increased maternal glyburide clearance during gestation is attributable to increased hepatic metabolism. Metabolite elimination may also increase during pregnancy. In the mouse model, fetal exposure to glyburide is gestational age–dependent and low compared with maternal plasma exposure. These results indicate that maternal glyburide therapeutic strategies may require adjustments in a gestational age–dependent manner if these same changes occur in humans.

Footnotes

    • Received January 22, 2014.
    • Accepted June 3, 2014.
  • This work was supported in part by the National Institutes of Health Eunice Kennedy Shriver National Institute of Child Health and Human Development [Grant U10-HD047892]; the National Institutes of Health National Center for Advancing Translational Sciences [Grant TL1-RR025016]; and the National Institutes of Health National Institute of General Medical Sciences [Grant T32-GM007750]. D.L.S. is the recipient of the American Foundation for Pharmaceutical Education Predoctoral Fellowship in Pharmaceutical Sciences. The content is solely the responsibility of the authors and does not necessarily represent the official views of the National Institutes of Health, the National Institutes of Health Eunice Kennedy Shriver National Institute of Child Health and Human Development, or the National Institutes of Health National Center for Advancing Translational Sciences.

  • dx.doi.org/10.1124/jpet.114.213470.

  • ↵Embedded ImageThis article has supplemental material available at jpet.aspetjournals.org.

  • Copyright © 2014 by The American Society for Pharmacology and Experimental Therapeutics
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Journal of Pharmacology and Experimental Therapeutics: 350 (2)
Journal of Pharmacology and Experimental Therapeutics
Vol. 350, Issue 2
1 Aug 2014
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Research ArticleEndocrine and Diabetes

Maternal-Fetal Glyburide PK in Pregnant Mice

Diana L. Shuster, Linda J. Risler, Chao-Kang J. Liang, Kenneth M. Rice, Danny D. Shen, Mary F. Hebert, Kenneth E. Thummel and Qingcheng Mao
Journal of Pharmacology and Experimental Therapeutics August 1, 2014, 350 (2) 425-434; DOI: https://doi.org/10.1124/jpet.114.213470

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Research ArticleEndocrine and Diabetes

Maternal-Fetal Glyburide PK in Pregnant Mice

Diana L. Shuster, Linda J. Risler, Chao-Kang J. Liang, Kenneth M. Rice, Danny D. Shen, Mary F. Hebert, Kenneth E. Thummel and Qingcheng Mao
Journal of Pharmacology and Experimental Therapeutics August 1, 2014, 350 (2) 425-434; DOI: https://doi.org/10.1124/jpet.114.213470
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