CNP and schizophrenia: Further phenotype-based genetic association studies in schizophrenia patients of the Göttingen Research Association for Schizophrenia data collection suggested that the CNP SNP rs2070106 AA genotype influences myelin/axon integrity in the frontal CC fibers, indicating that age- and genotype-dependent association of CNP rs2070106 might be causative of a catatonia-depression syndrome with age [105].