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Effects of arginine and ornithine supplementation to a high-protein diet on selected cellular immune variables in adult cats
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Effects of arginine and ornithine supplementation to a high-protein diet on selected cellular immune variables in adult cats
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Effects of arginine and ornithine supplementation to a high-protein diet on selected cellular immune variables in adult cats
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Journal Article
Effects of arginine and ornithine supplementation to a high-protein diet on selected cellular immune variables in adult cats
2020
Overview
Abstract
Background
Dietary protein and amino acid intake and composition can modulate immune function.
Objectives
To evaluate the effects of high-protein intake and arginine and ornithine supplementation on feline immune cells.
Animals
Ten healthy cats.
Methods
Experimental study. Cats received a high-protein basal diet as a single daily meal. A crossover design was applied with treatments being basal diet (w/o); basal diet with arginine supplementation (+50, 75, 100% compared to the arginine provision by the basal diet; Arg 1-3); and basal diet with ornithine supplementation (+100, 150, 200% compared to the arginine provision by the basal diet; Orn 1-3). Blood samples were collected at the end of each 11-day treatment period.
Results
Mitogen-stimulated proliferative activity of blood leukocytes revealed a quadratic effect for the dietary supplementation of arginine (P = .02) and ornithine (P = .03) (means for ConA-stimulation: w/o = 6.96; Arg 1 = 9.31; Arg 2 = 11.4; Arg 3 = 8.04; Orn 1 = 15.4; Orn 2 = 9.43; Orn 3 = 9.28; pooled SEM: 0.96). The number (% gated) of phagocytic granulocytes linearly decreased with increasing dietary concentrations of arginine (P = .05) and ornithine (P = .03) (means: w/o = 95.5; Arg 1 = 93.0; Arg 2 = 92.5; Arg 3 = 92.6; Orn 1 = 92.6; Orn 2 = 92.6; Orn 3 = 91.5; pooled SEM = 0.44).
Conclusions and Clinical Importance
This study could demonstrate immunomodulating properties of dietary arginine and ornithine in cats.
Publisher
Oxford University Press,John Wiley & Sons, Inc
