Laterality in functional and metabolic state of the bulbectomised rat brain detected by ASL and 1H MRS: A pilot study
Language English Country Great Britain, England Media print-electronic
Document type Journal Article, Research Support, Non-U.S. Gov't
- Keywords
- Arterial spin labelling, depression, magnetic resonance spectroscopy, olfactory bulbectomy, rats,
- MeSH
- Choline metabolism MeSH
- Creatine metabolism MeSH
- Rats MeSH
- Aspartic Acid metabolism MeSH
- Magnetic Resonance Spectroscopy methods MeSH
- Magnetic Resonance Imaging * MeSH
- Brain * pathology MeSH
- Pilot Projects MeSH
- Receptors, Antigen, T-Cell metabolism MeSH
- Animals MeSH
- Check Tag
- Rats MeSH
- Animals MeSH
- Publication type
- Journal Article MeSH
- Research Support, Non-U.S. Gov't MeSH
- Names of Substances
- Choline MeSH
- Creatine MeSH
- Aspartic Acid MeSH
- Receptors, Antigen, T-Cell MeSH
OBJECTIVES: Pilot study validating the animal model of depression - the bilateral olfactory bulbectomy in rats - by two nuclear magnetic resonance methods, indirectly detecting the metabolic state of the brain. Furthermore, the study focussed on potential differences in brain laterality. METHODS: Arterial spin labelling assessed cerebral brain flow in prefrontal, sensorimotor, and piriform cortices, nucleus accumbens, hippocampus, thalamus, circle of Willis, and whole brain. Proton magnetic resonance spectroscopy provided information about relative metabolite concentrations in the cortex and hippocampus. RESULTS: Arterial spin labelling found no differences in cerebral perfusion in the group comparison but revealed lateralisation in the thalamus of the control group and the sensorimotor cortex of the bulbectomized rats. Lower Cho/tCr and Cho/NAA levels were found in the right hippocampus in bulbectomized rats. The differences in lateralisation were shown in the hippocampus: mI/tCr in the control group, Cho/NAA, NAA/tCr, Tau/tCr in the model group, and in the cortex: NAA/tCr, mI/tCr in the control group. CONCLUSION: Olfactory bulbectomy affects the neuronal and biochemical profile of the rat brain laterally and, as a model of depression, was validated by two nuclear magnetic resonance methods.
Department of Condensed Matter Physics Faculty of Science Masaryk University Brno Czech Republic
Department of Pharmacology Faculty of Medicine Masaryk University Brno Czech Republic
Institute of Scientific Instruments of the Czech Academy of Sciences Brno Czech Republic
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