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Progressive degeneration and intraneuronal Lewy bodies made of filamentous α‐synuclein (α‐syn) in dopaminergic cells of the nigrostriatal system are characteristics of Parkinson’s disease (PD). Glucose uptake is reduced in some of the brain regions affected by PD neurodegenerative changes. Defects in mitochondrial activity in the substantia nigra have been observed in the brain of patients affected by PD and substantia nigra lesions can induce the onset of a secondary parkinsonism. Thus, energy starvation and consequently metabolic impairment to dopaminergic neurons may be related to the onset of PD. On this line, we evaluated the effect of nutrient starvation, reproduced ‘in vitro’ by glucose deprivation (GD), in primary mesecephalic neuronal cultures and dopaminergic‐differentiated SH‐SY5Y cells, to evaluate if decreased glucose support to dopaminergic cells can lead to mitochondrial damage …