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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.
Hypothyroidism II: Pathophysiology01:23

Hypothyroidism II: Pathophysiology

Hypothyroidism is a disorder characterized by insufficient production of thyroid hormones, which regulate metabolism, energy balance, and multiple organ systems.TypesHypothyroidism is classified based on the level of dysfunction. Primary hypothyroidism results from intrinsic thyroid gland dysfunction, causing reduced hormone production despite normal or increased stimulation. Secondary hypothyroidism arises from inadequate thyroid-stimulating hormone (TSH) secretion by the pituitary. Tertiary...
Hypothalamic-Pituitary Axis01:37

Hypothalamic-Pituitary Axis

The response to stress—be it physical or psychological, acute or chronic—involves activation of the Hypothalamic-Pituitary-Adrenal (HPA) axis. The HPA axis is part of the neuroendocrine system because it involves both neuronal and hormonal communication. Its function is to regulate homeostatic systems—metabolic, cardiovascular, and immune—providing the necessary means to respond to a stressor.
Hyperthyroidism II: Pathophysiology01:27

Hyperthyroidism II: Pathophysiology

Hyperthyroidism is a hypermetabolic state caused by elevated levels of thyroid hormones, triiodothyronine (T3) and thyroxine (T4). It results from dysregulation at the thyroid, pituitary, or immune system level and affects multiple organ systems.PathophysiologyThe most common cause of hyperthyroidism is Graves’ disease, an autoimmune disorder in which antibodies, specifically thyroid-stimulating antibodies (TSAb), a subtype of TSH receptor antibodies (TRAb), bind to and activate TSH receptors...
Hyperthyroidism I: Introduction01:25

Hyperthyroidism I: Introduction

Hyperthyroidism is a type of thyrotoxicosis characterized by the thyroid gland's overproduction of the thyroid hormones triiodothyronine (T3) and thyroxine (T4). This hormone excess increases the basal metabolic rate and enhances sensitivity to catecholamines.DiagnosisDiagnosis is based on clinical features and biochemical testing. It typically shows suppressed thyroid-stimulating hormone (TSH) levels below 0.4 mIU/L, with elevated free T3 and/or T4. Additional tests, including thyroid...
Depression: Overview01:18

Depression: Overview

Depression is a prevalent mental illness marked by persistent sadness and lack of interest in previously enjoyable activities. It can take several forms, including major depression, persistent depressive disorder, and bipolar I and II disorders. Symptoms range from emotional changes like chronic worry to physical changes like sleep disturbances and suicidal thoughts. From a neurobiological perspective, depression is believed to be triggered by abnormalities in the brain's prefrontal cortex,...

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Related Experiment Videos

[Bipolar disorder, cognitive functioning and hypothalamic-pituitary-thyroid axis].

C M Bonnin1, A Martinez-Aran, J Sanchez-Moreno

  • 1Programa de Trastornos Bipolares, Instituto de Neurociencias, Hospital Clínico, Universidad de Barcelona, IDIBAPS, Barcelona.

Actas Espanolas De Psiquiatria
|November 25, 2010
PubMed
Summary
This summary is machine-generated.

This study reviews the hypothalamic-pituitary-thyroid (HPT) axis in bipolar disorder (BD). It explores HPT axis function across BD phases and its link to cognitive deficits.

Related Experiment Videos

Area of Science:

  • Psychoneuroendocrinology
  • Neuroscience
  • Endocrinology

Context:

  • Bipolar disorder (BD) presents significant neuropsychological deficits.
  • The hypothalamic-pituitary-thyroid (HPT) axis role in BD is under-researched.
  • Understanding these connections is crucial for BD management.

Purpose:

  • To review neuropsychological dysfunctions in BD and their potential causes.
  • To examine HPT axis activity during different phases of bipolar disorder.
  • To investigate the relationship between HPT axis alterations and cognitive impairments in BD.

Summary:

  • This review synthesizes current knowledge on the HPT axis in bipolar disorder.
  • It addresses neuropsychological deficits in BD, HPT axis responses across illness phases, and the link between HPT alterations and cognitive function.
  • The study highlights a gap in understanding the intricate HPT-BD-neuropsychology relationship.

Impact:

  • This research aims to clarify the HPT axis's involvement in bipolar disorder pathophysiology.
  • Findings could inform novel therapeutic strategies targeting the HPT axis for cognitive symptoms in BD.
  • Enhances understanding of neuroendocrine-behavioral links in psychiatric disorders.