Research on a Drosophila model of Parkinson's disease has found that increased glutathione S-transferase activity can rescue dopaminergic neuron loss. Other studies on Drosophila models of the disease have explored various factors, including oxidative stress, mitochondrial abnormalities, and innate immune responses. The findings suggest potential therapeutic implications for Parkinson's disease, although the specific mechanisms and relationships between these factors are still being investigated.