Postmortem brain: an underutilized substrate for studying severe mental illness.

Area of Science:

• Neuroscience
• Psychiatry
• Genetics

Background:

• Schizophrenia is a complex neuropsychiatric illness with a phenotype emerging in late adolescence.
• Its etiology involves a combination of genetic and environmental factors.
• Studying schizophrenia pathophysiology is challenging due to neuroplastic changes and medication effects in patients.

Purpose of the Study:

• To highlight the utility of postmortem brain tissue as a substrate for translating preclinical and genetic studies.
• To discuss the challenges and biochemical approaches in postmortem studies of schizophrenia.
• To illustrate how postmortem studies generate leads for understanding severe mental illness.

Main Methods:

• Review of existing literature on postmortem studies in schizophrenia.
• Discussion of challenges inherent in using postmortem brain tissue (e.g., postmortem interval).
• Exploration of biochemical approaches applied to postmortem samples.

Main Results:

• Postmortem tissue provides a translational element difficult to replicate in animal models.
• Convergence of postmortem human data and animal model data yields significant insights.
• Postmortem studies have identified molecular deficits and their origins in schizophrenia.

Conclusions:

• Postmortem brain tissue is an underutilized resource for advancing our understanding of neuropsychiatric disorders.
• Addressing challenges in postmortem studies can enhance their translational value.
• Integrating postmortem findings with other research approaches is key to unraveling complex brain diseases.