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Related Experiment Video

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Precise Visualization of Insulin Receptors A and B in Murine Brain with an RNA In Situ Hybridization Assay

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Published on: July 15, 2025

Insulin sensitivity of the human brain.

Caroline Ketterer¹, Otto Tschritter, Hubert Preissl

¹Department of Internal Medicine, Division of Endocrinology, Diabetology, Angiology, Nephrology and Clinical Chemistry, Eberhard Karls University Tübingen, Tübingen, Germany.

Diabetes Research and Clinical Practice

|August 26, 2011

Summary

Brain insulin resistance impacts feeding behavior and cognition. Novel treatments, including intranasal insulin, show promise in overcoming central insulin resistance, crucial for managing obesity and type 2 diabetes mellitus.

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Area of Science:

Neuroscience
Endocrinology
Metabolic Disorders

Background:

The brain is insulin-sensitive, regulating key functions like feeding behavior, body weight, and cognition.
Insulin resistance, common in peripheral tissues and type 2 diabetes mellitus (T2DM), is increasingly recognized in the brain.
Factors such as obesity, aging, and genetics influence central insulin sensitivity.

Purpose of the Study:

To explore the role of central insulin signaling in feeding behavior, body weight, and cognitive function.
To investigate the implications of brain insulin resistance in the pathogenesis of obesity and T2DM.
To review current and potential therapeutic strategies for central insulin resistance.

Main Methods:

Review of existing human studies on central insulin sensitivity.
Analysis of the physiological effects of insulin in the brain.
Examination of therapeutic approaches for cerebral insulin resistance.

Main Results:

Disturbances in brain insulin signaling impair cognitive functions and eating behavior.
Central insulin resistance is linked to the development of obesity and T2DM.
Intranasal insulin and specific commercial insulins show potential for treating brain insulin resistance.

Conclusions:

Understanding central insulin function is critical for addressing cognitive decline and metabolic disorders.
Further research is needed to elucidate mechanisms of central insulin resistance and develop effective treatments.
Targeting brain insulin signaling offers a promising avenue for managing obesity and T2DM.