Article: Variations in Disrupted-in-Schizophrenia 1 gene modulate long-term longitudinal differences in cortical thickness in patients with a first-episode of psychosis. Journal: Brain Imaging and Behavior Javier Vázquez-Bourgon*a,b,c, Roberto Roiz-Santiañeza,b,c, Sergi Papiolb,d,e, Adele Ferrof, Noemí Varelaa,b,c, Lourdes Fañanásb,d, Benedicto Crespo-Facorroa,b,c a University Hospital Marqués de Valdecilla, Department of Psychiatry, School of Medicine, University of Cantabria, Santander, Spain b CIBERSAM, Centro Investigación Biomédica en Red Salud Mental, Spain c IDIVAL, Instituto de Investigación Marqués de Valdecilla, Santander, Spain d Departament de Biologia Animal, Facultat de Biologia, Universitat de Barcelona. Institut de Biomedicina de la Universitat de Barcelona (IBUB), Barcelona, Spain. e Institute of Psychiatric Phenomics and Genomics (IPPG) and Department of Psychiatry-Molecular Neurobiology. Ludwig Maximilian University of Munich, Munich, Germany. f Department of Experimental Clinical Medicine, Inter-University Center for Behavioral Neurosciences (ICBN), University of Udine, Udine,Italy. *Corresponding autor: Javier Vázquez-Bourgon, MD; E-mail: javazquez@humv.es ESM 2. Longitudinal and cross-sectional results of rs821616 and combined rs6675281/rs821616 Table S1. Effect of rs821616 polymorphism in cortical thickness progression over 3 years follow-up. Baseline 3 years Ser/Ser Cys/Car Stat. Ser/Ser Cys/Car (n=56) Stat. (n=4) (n=56) (n=4) Mean (SD) Mean (SD) F (p) Mean (SD) Mean (SD) F (p) Total cortical 4.16 (0.36) 3.97 (0.37) 1.13 (0.29) 4.08 (0.21) 3.98 (0.33) 0.26 (0.61) thickness (CT) Frontal CT 4.32 (0.40) 4.15 (0.42) 0.66 (0.42) 4.28 (0.26) 4.19 (0.39) 0.05 (0.83) Temporal CT 3.31 (0.29) 3.20 (0.33) 0.41 (0.53) 3.35 (0.25) 3.17 (0.33) 1.21 (0.28) Parietal CT 3.95 (0.41) 3.72 (0.35) 2.00 (0.16) 3.84 (0.22) 3.72 (0.32) 0.43 (0.52) Occipital CT 4.51 (0.49) 4.27 (0.49) 0.89 (0.35) 4.33 (0.29) 4.24 (0.43) 0.16 (0.69) Time x genotype F (p) 0.82 (0.37) 0.72 (0.39) 0.21 (0.67) 1.06 (0.31) 0.85 (0.36) Table S2. Combined effect of rs6675281 andrs821616 polymorphismson cortical thickness progression over 3 years follow-up. Baseline Leu/Leu +Ser/Ser (n=4) Total cortical thickness (CT) Frontal CT Temporal CT Parietal CT Occipital CT 3-years Phe/Car + Cys/Car (n=15) Stat. Leu/Leu +Ser/Ser (n=4) Mean (SD) 4.16 (0.36) Leu/Leu or Ser/Ser + Phe/Car or Cys/Car (n=37) Mean (SD) 4.02 (0.41) Mean (SD) 3.86 (0.30) F (p) 0.77 (0.46) 4.32 (0.40) 3.31 (0.29) 3.95 (0.41) 4.51 (0.49) 4.21 (0.45) 3.19 (0.36) 3.75 (0.38) 4.35 (0.54) 4.04 (0.38) 3.21 (0.30) 3.64 (0.27) 4.08 (0.37) 0.63 (0.54) 0.03 (0.97) 0.49 (0.61) 1.19 (0.31) Time x genotype Phe/Car + Cys/Car (n=15) Stat. Mean (SD) 4.08 (0.21) Leu/Leu or Ser/Ser + Phe/Car or Cys/Car (n=37) Mean (SD) 3.97 (0.37) Mean (SD) 3.99 (0.26) F (p) 0.46 (0.63) F (p) 3.99 (0.025) 4.28 (0.26) 3.35 (0.25) 3.84 (0.22) 4.33 (0.29) 4.19 (0.43) 3.14 (0.32) 3.71 (0.35) 4.24 (0.47) 4.21 (0.32) 3.20 (0.32) 3.71 (0.22) 4.24 (0.37) 0.43 (0.65) 1.33 (0.27) 0.41 (0.66) 0.16 (0.85) 3.67 (0.032) 0.36 (0.70) 1.67 (0.19) 4.73 (0.013)