Document Detail


The impact of taurine- and beta-alanine-supplemented diets on behavioral and neurochemical parameters in mice: antidepressant versus anxiolytic-like effects.
MedLine Citation:
PMID:  20099004     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Taurine, a substrate of taurine transporter, has functions as a neuromodulator and antioxidant and beta-alanine, a taurine transporter inhibitor, has a role as a neurotransmitter in the brain, and they were expected to be involved in depression-like behavior and antidepressant treatment. These facts aroused our interest in new capabilities of taurine and beta-alanine. Thus, to investigate the effects of chronic ingestion of taurine- (22.5 mmol/kg diet) supplemented diet and beta-alanine- (22.5 mmol/kg diet) supplemented diet under acute stressful conditions, behavioral changes and brain metabolites were compared with mice fed a control diet. In the open field test, no significant difference was observed in locomotor activity among groups. In the elevated plus-maze test, however, significant increases in the percentage of time spent and entries in the open arms were observed in the beta-alanine-supplemented diet fed group compared to both controls and animals fed with taurine-supplemented diet. Moreover, a significant decrease in the duration of immobility was observed in the taurine-supplemented diet group in the forced swimming test compared to both controls and animals fed with beta-alanine-supplemented diet. Taurine-supplemented diet increased taurine and L: -arginine concentrations in the hypothalamus. In contrast, beta-alanine-supplemented diet decreased the concentration of 5-hydroxyindoleacetic acid, a major metabolite of serotonin, in the hypothalamus. Beta-alanine-supplemented diet also increased carnosine (beta-alanyl-L: -histidine) concentration in the cerebral cortex and hypothalamus, and brain-derived neurotrophic factor concentration in the hippocampus. These results suggested that taurine-supplemented diet had an antidepressant-like effect and beta-alanine-supplemented diet had an anxiolytic-like effect.
Authors:
Tatsuro Murakami; Mitsuhiro Furuse
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2010-01-23
Journal Detail:
Title:  Amino acids     Volume:  39     ISSN:  1438-2199     ISO Abbreviation:  Amino Acids     Publication Date:  2010 Jul 
Date Detail:
Created Date:  2010-06-25     Completed Date:  2010-10-04     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9200312     Medline TA:  Amino Acids     Country:  Austria    
Other Details:
Languages:  eng     Pagination:  427-34     Citation Subset:  IM    
Affiliation:
Laboratory of Regulation in Metabolism and Behavior, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Fukuoka, 812-8581, Japan.
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MeSH Terms
Descriptor/Qualifier:
Animals
Anti-Anxiety Agents / pharmacology*
Antidepressive Agents / pharmacology*
Arginine / metabolism
Behavior, Animal / drug effects
Brain-Derived Neurotrophic Factor / metabolism
Carnosine / metabolism
Cerebral Cortex / drug effects,  metabolism
Dietary Supplements
Hippocampus / drug effects,  metabolism
Hydroxyindoleacetic Acid / metabolism
Hypothalamus / drug effects,  metabolism
Male
Mice
Mice, Inbred ICR
Stress, Psychological / drug therapy
Taurine / metabolism,  pharmacology*
beta-Alanine / pharmacology*
Chemical
Reg. No./Substance:
0/Anti-Anxiety Agents; 0/Antidepressive Agents; 0/Brain-Derived Neurotrophic Factor; 107-35-7/Taurine; 107-95-9/beta-Alanine; 305-84-0/Carnosine; 54-16-0/Hydroxyindoleacetic Acid; 74-79-3/Arginine

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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