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Study M840

Study name

Osman A 2021

Title

Post-weaning A1/A2 beta-casein milk intake modulates depressive-like behavior, brain u-opioid receptors, and the metabolome of rats

Overall design

The aim of this study was to investigate the exposure to casein-rich milk containing both A1 and A2 beta-casein variants and casein-free milk beyond the standard weaning age in rats and its influence on behavior, neurochemical, microbial, and metabolic profiles. In the first study, Wistar rats were divided into the following 2 groups (n = 8 in each group): (1) control group, and (2) casein-rich milk group. The control group was not provided with any milk post-weaning, the casein-rich group was provided with casein-rich milk. In the second study, Wistar rats were divided into the following 2 groups (n = 8 in each group): (1) control group, and (2) A1/A2 beta-casein group. For the A1/A2 beta-casein group, rats were provided with milk containing a mixture of A1/A2 beta-casein. In both studies, milk was given from postnatal day (PND) 21 until PND25. Urine and frontal cortex samples were used for 1H nuclear magnetic resonance spectroscopy analysis.

Study Type

Type1;

Data available

Unavailable

Organism

Rat; Wistar rat;

Categories of depression

Animal model; Other animal model; Other animal model;

Criteria for depression

Forced swimming test

Sample size

32

Tissue

Peripheral; Urine; Urine;

Central; Brain; Frontal cortex;

Platform

NMR; NMR: Bruker 600 MHz UltraShield spectrometer (Bruker Biospin, Karlsruhe, Germany);

PMID

34585111

DOI

10.1016/j.isci.2021.103048

Citation

Osman A, Zuffa S, Walton G, et al. Post-weaning A1/A2 beta-casein milk intake modulates depressive-like behavior, brain u-opioid receptors, and the metabolome of rats. iScience. 2021 Aug 28;24(9):103048.

Metabolite

Citric acid;

Glycerol;

3-Hydroxybutyric acid;

Glycine;

L-Glutamine;

Hippuric acid;

L-Tyrosine;

Choline;

Dimethylglycine;

Creatinine;

Oxoglutaric acid;

Ascorbic acid;

Fumaric acid;

Ethanolamine;

Taurine;

L-Malic acid;

S-Adenosylhomocysteine;

Phosphorylcholine;

1-Methylnicotinamide;

Glycerophosphocholine;

Inosinic acid;

Sarcosine;

Formic acid;

N-Methylnicotinamide;

Putrescine;

Methylamine;

Allantoin;

Benzoic acid;

Guanosine;

Trigonelline;

Dimethyl sulfone;

Nicotinuric acid;

Acetylcholine;

Galactitol;

Methanol;

3-Hydroxyisovaleric acid;

Carnitine phosphate;

3-Indoxysulfate;