In vitro effects of 2 bioactive compounds, gallic acid and methyl gallate, on urolithiasis.

Autor: Cechinel-Zanchett CC; Programa de Pós-graduação em Ciências Farmacêuticas, Núcleo de Investigações Químico-Farmacêuticas (NIQFAR), Universidade do Vale do Itajaí (UNIVALI), Itajaí, Santa Catarina, Brasil., Bolda Mariano LN; Programa de Pós-graduação em Ciências Farmacêuticas, Núcleo de Investigações Químico-Farmacêuticas (NIQFAR), Universidade do Vale do Itajaí (UNIVALI), Itajaí, Santa Catarina, Brasil., Schlickmann F; Programa de Pós-graduação em Ciências Farmacêuticas, Núcleo de Investigações Químico-Farmacêuticas (NIQFAR), Universidade do Vale do Itajaí (UNIVALI), Itajaí, Santa Catarina, Brasil., Cechinel-Filho V; Programa de Pós-graduação em Ciências Farmacêuticas, Núcleo de Investigações Químico-Farmacêuticas (NIQFAR), Universidade do Vale do Itajaí (UNIVALI), Itajaí, Santa Catarina, Brasil., de Souza P; Programa de Pós-graduação em Ciências Farmacêuticas, Núcleo de Investigações Químico-Farmacêuticas (NIQFAR), Universidade do Vale do Itajaí (UNIVALI), Itajaí, Santa Catarina, Brasil. Electronic address: priscilasouza_rc@yahoo.com.br.
Jazyk: English; Spanish; Castilian
Zdroj: Actas urologicas espanolas [Actas Urol Esp (Engl Ed)] 2021 Jun 11. Date of Electronic Publication: 2021 Jun 11.
DOI: 10.1016/j.acuro.2020.09.016
Abstrakt: Introduction and Objectives: This study aimed to evaluate the role of 2 widely distributed natural phenolic compounds, gallic acid (GA) and methyl gallate (MG), in an in vitro model of urolithiasis, by using the methodology of calcium oxalate crystals formation, which is the most common type of urinary or kidney stones.
Material and Methods: The compounds GA and MG were subjected to anti-crystallization activities in different concentrations (0.003-0.03mg/mL), and the quantity and morphology of crystals were determined by microscopy after 60min.
Results: GA inhibited about 44-57% of the total calcium oxalate crystals formation, while MG inhibited about 48.35%, when compared to vehicle-exposed samples (distilled water; negative control group). GA and MG exposure inhibited monohydrate type calculi formation, which is considered the most common and harmful crystal category. The compounds also decreased absorbance, which in turn is related to reduced calcium oxalate crystals aggregation and precipitation.
Conclusions: Altogether, this study shows, for the first time, that GA and MG are promising compounds with antiurolithiatic properties, opening new perspectives for future in vivo evaluations of the potential of these compounds in the treatment and/or prevention of urinary or kidney stones.
(Copyright © 2021 AEU. Publicado por Elsevier España, S.L.U. All rights reserved.)
Databáze: MEDLINE
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