Iveta Pavlova, Eva Drazanova, Lucie Kratka, Petra Amchova, Ondrej Macicek, Jana Starcukova, Zenon Starcuk, Jana Ruda-Kucerova
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Laterality in functional and metabolic state of the bulbectomised rat brain detected by ASL and 1H MRS: A pilot study.
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.
期刊介绍：
The aim of The World Journal of Biological Psychiatry is to increase the worldwide communication of knowledge in clinical and basic research on biological psychiatry. Its target audience is thus clinical psychiatrists, educators, scientists and students interested in biological psychiatry. The composition of The World Journal of Biological Psychiatry , with its diverse categories that allow communication of a great variety of information, ensures that it is of interest to a wide range of readers.
The World Journal of Biological Psychiatry is a major clinically oriented journal on biological psychiatry. The opportunity to educate (through critical review papers, treatment guidelines and consensus reports), publish original work and observations (original papers and brief reports) and to express personal opinions (Letters to the Editor) makes The World Journal of Biological Psychiatry an extremely important medium in the field of biological psychiatry all over the world.
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