Dr. Lederer received her medical training in Houston, Tx, at Baylor College of Medicine, including medical school, internal medicine residency, and nephrology fellowship training. She served as Chief Medical Resident at the Ben Taub General Hospital, co-director of the kidney transplant program and the Medical Director of the Pancreas Transplant Program at the Methodist Hospital. She moved to the University of Louisville in 1991 where she developed an independent research program in the study of phosphate transport in the proximal tubule. She served as Division Chief of Nephrology and Hypertension, Interim Associate Dean of Research for the University of Louisville School of Medicine, and Interim Chair of Medicine. She was a Merit Review-funded investigator at the affiliated Robley Rex VA Medical Center where she also served as Interim Chief of Medical Services and Associate Chief of Staff. She has been very active in the American Society of Nephrology where she served on the Executive Committee of the Training Program Directors, the Publications Committee, and the Council, ultimately serving as President of ASN in 2017.

Dr. Lederer moved to the University of Texas Southwestern, motivated by the strong Division of Nephrology, the commitment to all aspects of the academic mission, and the strength of its Mineral Metabolism Center. She is currently funded through the VA to study the regulation of PTH, phosphate, and calcium in chronic kidney disease and is an active clinician with expertise in general nephrology, renal physiology, nephrolithiasis, genetic kidney disease, and kidney transplantation.


Medical School
Baylor College of Medicine (1978)
Baylor College of Medicine (1979)
Baylor College of Medicine (1981), Internal Medicine
Chief Resident
Baylor College of Medicine (1983), Internal Medicine
Baylor College of Medicine (1984), Nephrology

Research Interest

  • Epithelial Transport
  • Nephrolithiasis
  • Phosphate Homeostasis


Featured Publications LegendFeatured Publications

Phosphate Transport in Epithelial and Nonepithelial Tissue.
Hernando N, Gagnon KB, Lederer ED, Physiol. Rev. 2020 Apr
Sodium-hydrogen exchanger regulatory factor-1 (NHERF1) confers salt sensitivity in both male and female models of hypertension in aging.
Pushpakumar S, Ahmad A, Ketchem CJ, Jose PA, Weinman EJ, Sen U, Lederer ED, Khundmiri SJ, Life Sci. 2020 Feb 243 117226
Loss of the Na+/H+ Exchange Regulatory Factor 1 Increases Susceptibility to Cisplatin-Induced Acute Kidney Injury.
Bushau-Sprinkle A, Barati M, Conklin C, Dupre T, Gagnon KB, Khundmiri SJ, Clark B, Siskind L, Doll MA, Rane M, Brier M, Coventry S, Lederer ED, Am. J. Pathol. 2019 Jun 189 6 1190-1200
Loss of NHERF-1 expression prevents dopamine-mediated Na-K-ATPase regulation in renal proximal tubule cells from rat models of hypertension: aged F344 rats and spontaneously hypertensive rats.
Barati MT, Ketchem CJ, Merchant ML, Kusiak WB, Jose PA, Weinman EJ, LeBlanc AJ, Lederer ED, Khundmiri SJ, Am. J. Physiol., Cell Physiol. 2017 Aug 313 2 C197-C206
Identification of an RNA-binding protein that is phosphorylated by PTH and potentially mediates PTH-induced destabilization of Npt2a mRNA.
Murray RD, Merchant ML, Hardin E, Clark B, Khundmiri SJ, Lederer ED, Am. J. Physiol., Cell Physiol. 2016 Feb 310 3 C205-15
Protein-DNA Interactions at the Opossum Npt2a Promoter are Dependent upon NHERF-1.
Clark BJ, Murray RD, Salyer SA, Tyagi SC, Arumugam C, Khundmiri SJ, Lederer ED, Cell. Physiol. Biochem. 2016 39 1 1-12
Role of Na+/H+ exchanger regulatory factor 1 in forward trafficking of the type IIa Na+-Pi cotransporter.
Ketchem CJ, Khundmiri SJ, Gaweda AE, Murray R, Clark BJ, Weinman EJ, Lederer ED, Am. J. Physiol. Renal Physiol. 2015 Jul 309 2 F109-19
Role of vacuolar ATPase in the trafficking of renal type IIa sodium-phosphate cotransporter.
Ahmad A, Khundmiri SJ, Pribble F, Merchant ML, Ameen M, Klein JB, Levi M, Lederer ED, Cell. Physiol. Biochem. 2011 27 6 703-14
Proteomic analysis of renal calculi indicates an important role for inflammatory processes in calcium stone formation.
Merchant ML, Cummins TD, Wilkey DW, Salyer SA, Powell DW, Klein JB, Lederer ED, Am. J. Physiol. Renal Physiol. 2008 Oct 295 4 F1254-8
Novel regulatory function for NHERF-1 in Npt2a transcription.
Khundmiri SJ, Ahmad A, Bennett RE, Weinman EJ, Steplock D, Cole J, Baumann PD, Lewis J, Singh S, Clark BJ, Lederer ED, Am. J. Physiol. Renal Physiol. 2008 Apr 294 4 F840-9


Featured Books Legend Featured Books

Honors & Awards

  • Top Doctor Louisville
  • Internal Medicine Resident Teaching Award
    University of Louisville (2018)
  • Top Doctor Louisville
  • Hans Ussing Lectureship
    American Physiological Society (2014)
  • Top Doctor Louisville
  • Distinguished Teacher Award
    University of Louisville (2009)
  • Internal Medicine Resident Teaching Award
    University of Louisville (2009-2010)
  • Internal Medicine Resident Teaching Award
    University of Louisville (2006)
  • Internal Medicine Resident Teaching Award
    University of Louisville (2003-2004)
  • Phi Beta Kappa
    Scholastic Honor Society (1974)