THE SHARED GENETICS OF ALCOHOL-RELATED DISORDERS AND SCHIZOPHRENIA

摘要 严重精神疾病和物质使用障碍经常同时发生。个体患有 精神分裂症是一种常见的、持续的、严重的精神疾病， 吸烟和吸烟比一般人群。同样，患有物质使用障碍的人经常遭受 其他精神疾病。例如，22%的酒精使用障碍患者有另一种精神障碍。 疾病，而没有酒精使用障碍的人只有11%。尽管科摩罗病很普遍， 目前尚不清楚是否有共同的遗传因素导致精神分裂症和物质使用障碍。 在这项研究中，我们使用现有的全基因组关联研究（GWAS）数据和最先进的统计学方法， 精神分裂症是否与酒精使用障碍或尼古丁共享遗传因素的评估方法 依赖具体来说，在目标1中，我们将评估是否遗传因素有助于精神分裂症 也会导致酒精使用障碍和尼古丁依赖。然后，在目标2中，我们将评估 导致酒精使用障碍或尼古丁依赖的遗传因素也会导致 精神分裂症这一新的建议是重要的，因为它将导致更好地了解comorbidity 精神分裂症伴酒精使用障碍和尼古丁依赖的基因水平。

Abstract Severe mental illness and substance use disorder frequently co-occur. Individuals suffering from schizophrenia—a common, persistent, and severe mental illness—have much higher rates of heavy alcohol use and smoking than the general population. Similarly, individuals with substance use disorder often suffer from other mental illnesses. For example, 22% of individuals with alcohol use disorder have another mental illness, compared to 11% of individuals without alcohol use disorder. Despite the prevalence of comorbidity, it is not known whether shared genetic factors contribute to schizophrenia and substance use disorders. In this study, we use existing genome-wide association study (GWAS) data and state-of-the-art statistical methodology to evaluate whether schizophrenia shares genetic factors with alcohol use disorder or nicotine dependence. Specifically, in aim 1 we will evaluate whether genetic factors that contribute to schizophrenia also contribute to alcohol use disorder and to nicotine dependence. Then, in aim 2, we will evaluate whether genetic factors that contribute to either alcohol use disorder or nicotine dependence also contribute to schizophrenia. This novel proposal is significant because it will lead to improved understanding of comorbidity of schizophrenia with alcohol use disorder and with nicotine dependence at a genetic level.