A total of 298 participants, consisting of 78 SZ, 75 GHR, and 145 HC, were included in this portion of the study. Baseline measures for 51 participants from the longitudinal study were included for this portion. Blood samples were obtained within 24 h of scanning. All participants underwent venipuncture between 10:00 a.m. and 3 p.m. Venous blood samples were centrifuged at 2,000 rpm for 10 min, and then stored at -80 °C for genotyping and lipidomic measurements.
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