Education

PhD, University of Kentucky, 2001

MVSc, University of Kentucky, 1997

DVM, Ankara University, Turkey, 1992

Research Interest

Pharmacokinetics, Pharmacodynamics, Molecular, Clinical and Analytical Pharmacology, Drug metabolism.

Teaching Interest

Clinical Pharmacology Rotations, Pharmacology (evidence based medicine and applied clinical pharmacology), Comparative Dispositions of Xenobiotic, Veterinary Pharmacology, Comparative Clinical Pharmacology, Advanced Clinical Pharmacology. 

Clinical Interest

Clinical Pharmacology Rotations

Awards & Honors

2021, Dean's Teacher Merit Honor Roll (2nd and 3rd years)

2020, Dean's Teacher Merit Honor Roll (2nd year)

2019, Dean's Teacher Merit Honor Roll (2nd and 3rd year)

2018, Dean's Teacher Merit Honor Roll (3rd year)

2017, Dean's Teacher Merit Honor Roll (3rd year)

2016, Phi Zeta poster presentation (Third place)

2015, Elected by the CVM Class of 2015 as a Hooder for Commencement

2015, Teacher Ranked as Excellent

2014, Elected by the CVM Class of 2014 as a Hooder for Commencement

2014, Elected by the CVM Class of 2015 as a Draper for White Coat Ceremony

2014, Teacher Ranked as Excellent

2013, Elected by the CVM Class of 2014 as a Draper for White Coat Ceremony

2012, Dr. Erwin Small Teaching Excellence Award

2012, Elected by the CVM Class of 2012 as a Hooder for Commencement

2012, Teacher Ranked as Excellent

2011, Dr. Erwin Small Teaching Excellence Award

2011, Pfizer Research Excellence Award

2011, Teacher Ranked as Excellent

2010, Elected by the CVM Class of 2011 and 2012 as a Draper for White Coat Ceremony

2010, Teacher Ranked as Excellent

2009, Teacher Ranked as Excellent 

2008, Arnold O. Beckman Research Award

2006, Pfizer Animal Health Research Excellence Award

2005, Norden Distinguished Teacher of the Year Award

2004, Faculty Performance Award

2003, Involved in the development of first FDA approved therapeutic medications for the treatment and prophylaxis of Equine Protozoal Myeloencephalitis based on the use of triazine drugs

1997, Honor student program 

Publications

Dirikolu L, Lehner AF, Tobin T. Plasma concentrations of diclazuril following oral administration of diclazuril and diclazuril sodium salt to cattle. J Vet Pharmacol Ther. 2022 Jul;45(4):392-401. doi: 10.1111/jvp.13062.

Simultaneous Quantification of Caffeine and Its Main Metabolites by Gas Chromatography Mass Spectrometry in Horse Urine.  Göktaş EF, Kabil E, Yatanaslan L, Güneş E, Dirikolu L. Biomed Chromatogr. 2022 Oct;36(10):e5445. doi: 10.1002/bmc.5445 

Guanabenz in the horse – A preliminary report on clinical effects and comparison to clonidine and other alpha-2 adrenergic agonists.  Lehner AF, Dirikolu L, Tobin T.  Pferdeheilkunde – Equine Medicine 38 (2022) 6 (November/December) 554–565, DOI 10.21836/PEM20220607

Total Carbon Dioxide (TCO2) Concentrations in Thoroughbred and Quarter Racehorses in Louisiana.  Dirikolu L, Waller P, Malveaux K, Lucas CH, Lomnicka I, Pourciau A, Bennadji H, Chi Liu CC. J Equine Vet Sci. 2023 Jan 6;104220. doi: 10.1016/j.jevs.2023.104220.  

Pharmacokinetic and safety profiles of three dose rates of morphine sulfate following single intravenous, intramuscular, and subcutaneous administration in the goat.  Gordon, E, Dirikolu L, Chi Liu CC, Li Z, PhD, Welborn M, Armstrong C, Vallotton D, Scully CM.  J Vet Pharmacol Ther. September 7, 2021.  doi: 10.1111/jvp.13011 https://pubmed.ncbi.nlm.nih.gov/34494277/ 
 
Dexamethasone serum concentrations after intravenous administration in horses during race training.  McClure S, Fenger C, Kersh K, Brown B, Maylin G, Duer W,  Dirikolu L, Brewer K, Machin J and Tobin T.  Comparative Exercise Physiology, December 2020, doi: 10.3920/CEP200015 
 
Liquid chromatography/tandem mass spectrometric analysis of penicillamine for its pharmacokinetic evaluation in dogs. Lehner AF, Dirikolu L, Johnson M, Buchweitz JP, Langlois DK.  Toxicol Mech Methods, 2020 Nov;30(9):687-702. doi: 10.1080/15376516.2020.1814467. https://pubmed.ncbi.nlm.nih.gov/32854553/ 
 
Ellerbrock RE, Canisso IF, Roady PJ, Rothrock LT, Zhong L, Wilkins P, Dirikolu L, Lima FS, Honoroto J. Diffusion of enrofloxacin to pregnancy fluids and effects on fetal cartilage after intravenous administration to late pregnant mares.  Equine Vet J. 2019 Jul;51(4):544-551. doi: 10.1111/evj.13044. https://pubmed.ncbi.nlm.nih.gov/30449030/ 
 
Dirikolu L, Waller P, Waguespack ML, Andrews FM, Keowen ML, Gaunt SD.The effect of sodium bicarbonate and validation of beckman coulter AU680 analyzers for measuring total carbon dioxide (TCO2) concentrations in horse serum.  Vet Med Sci. 2017 Oct 25;3(4):263-269. doi: 10.1002/vms3.82 (one of the journal’s top 20 most downloaded recent papers) https://pubmed.ncbi.nlm.nih.gov/29152319/ 
 
Rachel J. Tulipan RJ, Phillips H, Garrett LD, Dirikolu L, Mitchell MA. Characterization of long-term elution of platinum from carboplatin-impregnated calcium sulfate hemihydrate beads in vitro by two distinct sample collection methods.  Am J Vet Res. 2017 May;78(5):618-623. doi: 10.2460/ajvr.78.5.618. https://pubmed.ncbi.nlm.nih.gov/28441046/ 

PUBMED PUBLICATIONS

Grants

Race horses testing (PI), Louisiana State Racing Commission, $1,442,233.00

Race horses testing (PI), Louisiana Racing Commission, $1,398,054.00

Race horses testing (PI), Louisiana Racing Commission, $1,355,269.00

Race horses testing (PI), Louisiana Racing Commission, $4,106,336.00

Hergenrother P (PI), Minutolo F, Seth P (Co-PI), Dirikolu L, Grant A (C-I) Design, synthesis, and evaluation of lactate dehydrogenase inhibitors, NIH (R01), $1,380,000.00