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  • Title: [Effect of lesions of the ventromedial nucleus of the thalamus on cerebral metabolism: experimental study in the rat using the 14C-deoxyglucose method].
    Author: Girault JA, Savaki HE, Desban M, Glowinski J, Besson MJ.
    Journal: Rev Neurol (Paris); 1986; 142(4):456-64. PubMed ID: 3787051.
    Abstract:
    Local cerebral glucose utilization (LCGU) was studied quantitatively in awake rats one week and one month following unilateral electrolytic lesion of the ventromedial thalamic nucleus (VM). Significant decrease in LCGU were observed in the ipsilateral cortex as well as in some contralateral cortical areas and bilateral subcortical structures. The modifications by the VM lesion, of the metabolic activations induced by electrical stimulation of substantia nigra pars reticulata (SNR, main afference of the VM) were investigated also. Results suggest that VM is an important relay nucleus on the pathways directed from one SNR towards ipsilateral corticostriatal system and contralateral thalamus and basal ganglia. Finally, one month following the VM lesion a recovery of metabolic activations induced by SNR stimulation was observed whereas basal glucose consumption remained decreased.
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