Melbourne: After almost 20 years of research, Australian and Indian scientists have identified a new gene directly linked to schizophrenia.Scientists from the University of Queensland in Australia and a team of Indian researchers searched the genomes of over 3,000 individuals and found those with schizophrenia were more likely to have a particular genetic variation. The team of Indian researchers was led by Rangaswamy Thara, co-founder and director of the Chennai-based Schizophrenia Research Foundation.Bryan Mowry from the university said such studies had predominantly been done in populations with European ancestry, with more than 100 schizophrenia-associated variants identified previously.
“Looking at other populations can highlight different parts of the genome with a more robust association with the disease,” Mowry said.’’This study identified a gene called NAPRT1 that encodes an enzyme involved in vitamin B3 metabolism - we were also able to find this gene in a large genomic dataset of schizophrenia patients with European ancestry,” he said.”When we knocked out the NAPRT1 gene in zebrafish, brain development of the fish was impaired - we are now working to understand more deeply how this gene functions in the brain,” Mowry said.
He said that much of the variation in schizophrenia, which occurred in about one per cent of the population, was due to genetic factors.”Schizophrenia strikes at the heart of what it means to be human - it has devastating impacts on the sufferer and their ability to function,” he said.”Our studies aim to shed more light on what makes people susceptible to schizophrenia and possible treatments for the future,” Mowry said.
