Schizophrenia: from mechanism to therapy.

Schizophrenia is a multifaceted psychiatric disorder characterized by hallucinations, delusions, cognitive deficits, and social dysfunction. Its etiology involves a complex interplay of neurochemical, neurodevelopmental, genetic, and immune responses. Despite extensive research, its precise etiology remains elusive. Multiple hypotheses have been proposed to explain its onset and progression. Neurochemical hypotheses focus on dysregulation of the dopamine and glutamate systems, leading to characteristic symptoms. Neurodevelopmental theories suggest that prenatal and perinatal insults contribute to abnormal brain development, affecting regions such as the prefrontal cortex and the hippocampus. Genetic predispositions play a crucial role, as evidenced by familial aggregation and genome-wide association studies that identified risk genes. Additionally, emerging research has implicated immune system dysfunction and inflammation in the pathophysiology of schizophrenia. Current therapeutic strategies primarily focus on antipsychotic medications targeting dopamine receptors. The efficacy of these medications varies and often fails to address negative and cognitive symptoms. Advances in the understanding of the multifactorial mechanisms underlying schizophrenia are essential for developing more effective and comprehensive treatment approaches, such as early intervention, personalized medicine, and novel pharmacological and psychosocial therapies. The study reviewed the latest findings on the neurobiology of schizophrenia and the implications of these findings for the development of new mechanistically based treatments and precision medicine for psychotic symptoms.