The SC2 High ALT of patient 1 was enriched in Parkinson's disease, negative regulation of cellular components, and nervous system development, while the SC2 low ALT had enriched pathways for immunoglobulin-mediated immune responses, positive regulation of immune responses, positive regulation of lymphocyte proliferation, and positive regulation of immune effector processes (Fig. 3E). Here, GPT is linked to Parkinson disease.