TH and Parkinson disease: Alongside liraglutide, semaglutide has been shown to effectively improve motor impairments, rescue tyrosine hydroxylase (TH) levels, reduce α-synuclein accumulation, chronic inflammation response in the brain and lipid peroxidation, inhibit mitochondrial mitophagy signaling and protect dopaminergic neurons in the substantia nigra and striatum in MPTP mouse models of PD [81].