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The rat closely mimics oxidative stress and inflammation in humans after exercise but not after exercise combined with vitamin C administration
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The rat closely mimics oxidative stress and inflammation in humans after exercise but not after exercise combined with vitamin C administration
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Journal Article
The rat closely mimics oxidative stress and inflammation in humans after exercise but not after exercise combined with vitamin C administration
2016
Overview
Purpose
The purpose of the present study was to directly compare oxidative stress and inflammation responses between rats and humans.
Methods
We contrasted rat and human oxidative stress and inflammatory responses to exercise (pro-oxidant stimulus) and/or vitamin C (anti-oxidant stimulus) administration. Vitamin C was administered orally in both species (16 mg kg
−1
of body weight). Twelve redox biomarkers and seven inflammatory biomarkers were determined in plasma and erythrocytes pre- and post-exercise or pre- and post-exercise combined with vitamin C administration.
Results
Exercise increased oxidative stress and induced an inflammatory state in rats and humans. There were only 1/19 significant species × exercise interactions (catalase), indicating similar responses to exercise between rats and humans in redox and inflammatory biomarkers. Vitamin C decreased oxidative stress and increased antioxidant capacity only in humans and did not affect the redox state of rats. In contrast, vitamin C induced an anti-inflammatory state only in rats and did not affect the inflammatory state of humans. There were 10/19 significant species × vitamin C interactions, indicating that rats poorly mimic human oxidative stress and inflammatory responses to vitamin C administration. Exercise after acute vitamin C administration altered redox state only in humans and did not affect the redox state of rats. On the contrary, inflammation biomarkers changed similarly after exercise combined with vitamin C in both rats and humans.
Conclusions
The rat adequately mimics human responses to exercise in basic blood redox/inflammatory profile, yet this is not the case after exercise combined with vitamin C administration.
Publisher
Springer Berlin Heidelberg,Springer Nature B.V
Subject
/ Animals
/ Ascorbic Acid - administration & dosage
/ Ascorbic Acid - pharmacology
/ Ascorbic Acid - therapeutic use
/ Biomedical and Life Sciences
/ Debates
/ Exercise
/ Humans
/ Inflammation - prevention & control
/ Male
/ Occupational Medicine/Industrial Medicine
/ Oxidative Stress - drug effects
/ Physical Conditioning, Animal
/ Rats
/ Rodents
