Application of Liquid Chromatography with Fluorimetric Detection for the Determination of Urinary Pentosidine in Type 2 Diabetes Mellitus Patients: Effect of Telmisartan Administration on Podocyturia and Relationship with Metabolic Control

Carlos Kornhauser, Gloria Barbosa-Sabanero, Noemí Gutierrez-Romero, Myrna Sabanero, Elva L. Perez-Luque, Armando Gómez-Ojeda


The beneficial effects of a short period of Telmisartan administration were successfully assessed trough pentosidine urinary levels (uPen) and urinary podocyte excretion (UPE), in type 2 diabetes mellitus (DM2) patients. Patients with podocyturia received Telmisartan treatment (80 mg/day) for two months.  uPen were quantified pre and post treatment using HPLC with fluorimetric detection and in-lab synthesized standard. Immunofluorescence method for podocalyxin was used to evaluate urinary excretion of podocytes. uPen and UPE significantly decrease after treatment (p<0.01255 and p<0.005 respectively), as well as serum total cholesterol and LDL levels (p<0.001). These results suggest that podocyte protection by Telmisartan even in the face of deficient metabolic control could be an important matter in the prevention and progression of diabetic nephropathy. This study also strengthens evidence of the promising role of pentosidine as prognostic and diagnostic markers in diabetic nephropathy


Diabetic nephropathy; AGEs; Pentosidine; Telmisartan; Podocytes; Metabolic control

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Journal of the Mexican Chemical Society (J. Mex. Chem. Soc.) Vol 62, No 2 (2018). Quarterly publication (April-June). Edited and distributed by Sociedad Química de México, A.C. Barranca del Muerto 26, Col. Crédito Constructor, Del. Benito Juárez, C.P. 03940, Mexico City. Phone: +5255 56626837; +5255 56626823 Contact: Editor-in-Chief: Ignacio González-Martínez. Indexed Journal. Certificate of reserved rights for recurrent publications under digital distribution granted by the Instituto Nacional del Derecho de Autor (INDAUTOR): 04-2018-091118040000-203. Certificate of lawful title and content: Under procedure. ISSN-e granted by the Instituto Nacional del Derecho de Autor (INDAUTOR): 2594-0317. ISSN granted by the Instituto Nacional del Derecho de Autor (INDAUTOR): 1870-249X. Postal registration of printed matter deposited by editors or agents granted by SEPOMEX: IM09-0312 Copyright © Sociedad Química de México, A.C. Total or partial reproduction is prohibited without written permission of the right holder. The Figures/schemes quality and the general contents of this publication are full responsibility of the authors. Updated December 12th, 2018 by Adriana Vázquez (editorial assistant, e-mail:, J. Mex. Chem. Soc., Sociedad Química de México, A.C.