Whey Protein Concentrate WPC-80 Intensifies Glycoconjugate Catabolism and Induces Oxidative Stress in the Liver of Rats

Nutrients
Marta Żebrowska-GamdzykHalina Car

Abstract

The aim of this study was to evaluate the effect of whey protein concentrate (WPC-80) on glycoconjugate catabolism, selected markers of oxidative stress and liver inflammation. The experiment was conducted on male Wistar rats (n = 63). The animals from the study group were administered WPC-80 at a dose of 0.3 or 0.5 g/kg body weight for 7, 14 or 21 days, while rats from the control group received only 0.9% NaCl. In liver homogenates, we assayed the activity of N-acetyl-β-D-hexosaminidase (HEX), β-glucuronidase (GLU), β-galactosidase (GAL), α-mannosidase (MAN), α-fucosidase (FUC), as well as the level of reduced glutathione (GSH), malondialdehyde (MDA), interleukin-1β (IL-1β) and transforming growth factor-β1 (TGF-β1). A significantly higher activity of HEX, GLU, MAN and FUC were found in the livers of rats receiving WPC-80 compared to controls. Serum ALT and AST were significantly higher in the animals supplemented with WPC-80 at a dose of 0.5 g/kg body weight for 21 days. In the same group of animals, enhanced level of GSH, MDA, IL-1β and TGF-β1 were also observed. WPC-80 is responsible for intensive remodelling of liver tissue and induction of oxidative stress especially at a dose of 0.5 g/kg body weight.

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Citations

Feb 20, 2019·International Journal of Molecular Sciences·Mateusz MaciejczykAdrian Chabowski
Mar 14, 2019·Applied Physiology, Nutrition, and Metabolism = Physiologie Appliquée, Nutrition Et Métabolisme·Anna TokajukHalina Car
Sep 13, 2019·Free Radical Research·Linda GiblinMichael J Davies
Sep 27, 2019·Advances in Nutrition·Kristin M HirahatakeSean H Adams
Jan 30, 2021·Oxidative Medicine and Cellular Longevity·Krzysztof DrygalskiMateusz Maciejczyk
May 22, 2020·Neuroscience and Biobehavioral Reviews·Ioannis ZalachorasLaia Morató
Jun 2, 2021·Gynecological Endocrinology : the Official Journal of the International Society of Gynecological Endocrinology·Yan FengLi Sun

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Methods Mentioned

BETA
MDA
ELISA
Protein Assay

Software Mentioned

GraphPad Prism
Statistica

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