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Related Concept Videos

Bipolar Disorder01:30

Bipolar Disorder

Bipolar disorder is a chronic mental health condition marked by significant mood fluctuations, including episodes of mania and depression. Elevated energy levels, heightened mood or irritability, impulsive behavior, reduced sleep needs, rapid speech, racing thoughts, inflated self-esteem, and distractibility characterize mania. Individuals with bipolar disorder often alternate between depressive and manic states, with periods of emotional stability lasting an average of six months to a year.
Type II Diabetes II: Pathophysiology01:24

Type II Diabetes II: Pathophysiology

PathophysiologyType 2 diabetes mellitus (T2DM ) is a chronic metabolic disorder characterized by insulin resistance and progressive pancreatic β-cell dysfunction, leading to impaired glucose homeostasis. It results from interactions among genetic predisposition, environmental factors, and metabolic stressors, such as overnutrition and a sedentary lifestyle.Insulin Resistance and Glucose DysregulationEarly T2DM involves insulin resistance in skeletal muscle, adipose tissue, and the liver.
Mania and Antimanic Drugs: Overview01:24

Mania and Antimanic Drugs: Overview

Mania, a psychological condition characterized by elevated mood, increased energy, and reduced sleep need, is part of the bipolar disorder cycle. The exact cause of mania isn't entirely known, but it is thought to be a combination of genetic, environmental, and neurological factors. Bipolar disorder involves alternating manic and depressive episodes. Mood stabilizers like lithium, antipsychotics, and anticonvulsants help manage these episodes. Lithium carbonate is particularly effective as a...
Insulin: Dosing Regimen and Adverse Effects01:16

Insulin: Dosing Regimen and Adverse Effects

Insulin-replacement therapy usually includes both long-acting insulin (basal) and short-acting insulin (to cater to postprandial needs). In a diverse group of type 1 diabetes patients, the average daily insulin dose is typically 0.5-0.7 units/kg body weight. However, obese patients and pubertal adolescents may need more due to insulin resistance.
The basal dose constitutes about 40%-50% of the total daily dose, with the rest as premeal insulin. The mealtime insulin dose should mirror...
Type I Diabetes II: Pathophysiology01:26

Type I Diabetes II: Pathophysiology

Type 1 diabetes mellitus arises from an immune-mediated destruction of pancreatic β-cells, resulting in an absolute deficiency of insulin. This process develops in genetically susceptible individuals when autoimmunity, environmental exposures, and immunologic dysregulation converge to trigger a targeted attack on the insulin-producing cells of the pancreas. The β-cells are located within the islets of Langerhans and are essential for regulating blood glucose by facilitating cellular uptake of...
Carbohydrate Metabolism01:36

Carbohydrate Metabolism

Carbohydrates are polymers composed of molecules containing atoms of carbon, hydrogen and oxygen. One gram of carbohydrate can provide four kilo-calories of energy, which makes it the most efficient instant energy source.
Starch accounts for approximately 60% of the carbohydrates consumed by humans. Since amylase enzymes cannot function in the stomach's acidic environment, starch can only be digested in the mouth and small intestine. Simple sugars are found naturally in milk and fruits in the...

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Related Experiment Video

Updated: May 31, 2026

Influence of Emotional Factors on the Efficacy of Acupuncture Treatment for Overweight Complicated with Hyperlipidemia: A Retrospective Cohort Study
03:05

Influence of Emotional Factors on the Efficacy of Acupuncture Treatment for Overweight Complicated with Hyperlipidemia: A Retrospective Cohort Study

Published on: November 21, 2025

Insulin dysfunction and allostatic load in bipolar disorder.

Elisa Brietzke1, Flávio Kapczinski, Rodrigo Grassi-Oliveira

  • 1Bipolar Disorder Program, Institute of Psychiatry, University of São Paulo, São Paulo, Brazil. elisabrietzke@hotmail.com

Expert Review of Neurotherapeutics
|July 5, 2011
PubMed
Summary
This summary is machine-generated.

Bipolar disorder (BD) involves chronic medical conditions that impact brain function. Insulin resistance and related issues may mediate this allostatic load, suggesting insulin as a potential therapeutic target for BD.

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Area of Science:

  • Neuroscience
  • Endocrinology
  • Psychiatry

Background:

  • Bipolar disorder (BD) is linked to significant illness and early death.
  • Chronic medical conditions like obesity and diabetes mellitus are key factors in BD.
  • Allostatic load, involving physiological system changes, affects brain function and health in BD patients.

Purpose of the Study:

  • To explore the role of insulin physiology in allostatic load within bipolar disorder.
  • To identify insulin as a potential mediator and therapeutic target for BD.

Main Methods:

  • Review of existing evidence on insulin physiology and its impact on the central nervous system (CNS).
  • Analysis of the relationship between insulin resistance, hyperinsulinemia, and central insulinopenia in BD.
  • Examination of insulin's role in neurotrophism, synaptic plasticity, neurocognitive deficits, and amyloid deposition.

Main Results:

  • Abnormalities in insulin physiology are implicated as effectors of allostatic load in BD.
  • Insulin plays a crucial role in CNS processes, both normal and pathological.
  • Insulin's involvement in neuroprotection and neurodegeneration pathways is highlighted.

Conclusions:

  • Insulin is proposed as a mediator of allostatic load in bipolar disorder.
  • Targeting insulin physiology may offer a novel therapeutic strategy for managing BD and its comorbidities.