BCL2 and Parkinson disease: Figure 3 presents studies involving the impact of the ketogenic diet on PD-induced mice. Figure 3B shows neuroprotective effects on dopaminergic neurons upon long-term use of MCT-KD (medium chain triglyceride-ketogenic diet). Compared to the MPTP + CD group, the MPTP + MCT-KD group showed upregulation of the anti-apoptotic protein BCl-2 and prevention of dopaminergic neuron loss (Figure 3C).