Crosstalk between metabolic and neuropsychiatric disorders

Area of Science:

• Neuroscience
• Metabolic research
• Psychiatry

Background:

• Metabolic disturbances, including insulin resistance, diabetes, and obesity, are increasingly recognized as co-occurring with neuropsychiatric disorders.
• Human and animal studies suggest shared pathophysiological mechanisms underlie these conditions.
• Recent research has refined our understanding of insulin's role in central nervous system (CNS) function.

Purpose of the Study:

• To review the multifaceted role of insulin in normal and abnormal brain function.
• To explore the connection between insulin signaling and the pathogenesis of neuropsychiatric and neurodegenerative disorders.
• To discuss the potential of targeting brain insulin pathways for novel therapeutic strategies.

Main Methods:

• Literature review focusing on studies investigating insulin's effects on the CNS.
• Analysis of evidence linking metabolic dysfunction to neuropsychiatric and neurodegenerative conditions.
• Synthesis of current knowledge on insulin's neurotrophic, neuroplastic, and neuromodulatory functions.

Main Results:

• Insulin acts as a pleiotropic peptide crucial for neurotrophism, neuroplasticity, and neuromodulation in the CNS.
• Dysregulation of insulin signaling is implicated in the development and progression of various neuropsychiatric disorders.
• Insulin's role extends to the pathogenesis of metabolic diseases like diabetes and obesity, and neurodegenerative conditions such as Alzheimer's disease.

Conclusions:

• Insulin plays a critical role in maintaining normal brain function and is implicated in various neurological and psychiatric disorders.
• Targeting insulin-related pathways in the brain presents a promising avenue for developing innovative treatments.
• Further research into brain insulin signaling could lead to improved therapeutic approaches for a range of CNS conditions.