J 2020

Flower Infusions From Cornus mas and Cornus kousa Inhibit Aldose Reductase Enzyme, Without Any Effects on Lipotoxicity

FORMAN, V., I. SUSANIKOVA, L. KUKUROVA, Emil ŠVAJDLENKA, M. NAGY et. al.

Basic information

Original name

Flower Infusions From Cornus mas and Cornus kousa Inhibit Aldose Reductase Enzyme, Without Any Effects on Lipotoxicity

Authors

FORMAN, V., I. SUSANIKOVA, L. KUKUROVA, Emil ŠVAJDLENKA (203 Czech Republic, belonging to the institution), M. NAGY and P. MUCAJI

Edition

Natural Product Communications, THOUSAND OAKS, SAGE PUBLICATIONS INC, 2020, 1934-578X

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

30104 Pharmacology and pharmacy

Country of publisher

United States of America

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 0.986

RIV identification code

RIV/00216224:14160/20:00118268

Organization unit

Faculty of Pharmacy

UT WoS

000525438800001

Keywords in English

Cornus mas; Cornus kousa; aldose reductase; diabetes mellitus; lipotoxicity; NIH-3T3 cell line

Tags

Tags

International impact, Reviewed
Změněno: 25/2/2021 10:59, Mgr. Hana Hurtová

Abstract

V originále

Aldose reductase inhibitors are considered to be potential therapeutic agents for chronic diabetic complications. Diabetes mellitus can be accompanied by elevated blood levels of free fatty acids, which can cause lipotoxicity. Herbal extracts and their constituents are promising agents which have the potential for alleviating these complications. Our study was focused on the influence on these effects by flower infusions from Comus mar L. and Cornus kousa F.Buerger ex Hance. Initially, phenolic compounds were quantified in the dried flowers. Next, we studied the ability of flower infusions from both plants to inhibit aldose reductase in vitro, the protective role in the cell model of lipotoxicity, and the cytotoxic action on fibroblast cell line NIH-3T3 by 3-(4,5-dimethyl-2-thiazolyl)-2,5-diphenyl-2H-tetrazolium bromide assay. Both species are rich in phenolics; C. kousa flowers contain slightly higher amounts of phenolic acids (20.8%) and flavonoids (56.1%) than C. mas (20.2%) and (47.4%), respectively. Both extracts showed effective inhibition, expressed as half-maximal inhibitory concentration (IC50) (the concentration of inhibitor required to exhibit 50% inhibition of the enzyme reaction), of aldose reductase in non-toxic low concentrations (IC50 = 3.06 mu g/mL for C. mas and IC50 = 2.49 mu g/mL for C. kousa, respectively). In contrast, these concentrations of both extracts had almost no effects in the lipotoxicity cell model. To our knowledge, this study is the first report on C. mar and C. kousa flowers' aldose reductase inhibitory activity and influence upon lipotoxicity.