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Related Concept Videos

Huntington Disease l: Introduction01:21

Huntington Disease l: Introduction

Huntington disease or HD is a progressive, fatal neurodegenerative disorder inherited in an autosomal dominant pattern.PathophysiologyIt is caused by expansion of the CAG trinucleotide repeat in the HTT gene on chromosome 4 (4p16.3), producing an abnormal huntingtin protein with an expanded polyglutamine tract. This misfolded protein disrupts cellular function, leading to neuronal death. Normal alleles have ≤26 repeats, 27–35 are intermediate (risk of expansion), 36–39 show reduced penetrance,...
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Atypical antidepressants, including bupropion (Wellbutrin), mirtazapine (Remeron), nefazodone (Serzone), trazodone (Desyrel), and vilazodone (Viibryd), offer unique mechanisms of action. Bupropion weakly inhibits dopamine and norepinephrine reuptake, aiding depression treatment and smoking cessation, with a low risk of sexual dysfunction. Mirtazapine enhances serotonin and norepinephrine neurotransmission, leading to sedation, increased appetite, and weight gain. As a result, it helps treat...
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Related Experiment Video

Updated: May 27, 2026

Fractionation for Resolution of Soluble and Insoluble Huntingtin Species
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Suicidality in Huntington's disease.

A A M Hubers1, N Reedeker, E J Giltay

  • 1Department of Psychiatry, Leiden University Medical Center, Leiden, The Netherlands. a.a.m.hubers@lumc.nl

Journal of Affective Disorders
|November 29, 2011
PubMed
Summary

Huntington's disease (HD) patients show increased suicidality, especially those with depressed mood. Early screening for suicidal ideation in HD mutation carriers is crucial for intervention and risk assessment.

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Last Updated: May 27, 2026

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Efficient and Scalable Production of Full-length Human Huntingtin Variants in Mammalian Cells using a Transient Expression System
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08:27

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Published on: March 11, 2020

Area of Science:

  • Neuroscience
  • Psychiatry
  • Genetics

Background:

  • Huntington's disease (HD) is associated with a significantly elevated risk of suicide.
  • Suicidality, a precursor to suicide, requires thorough investigation in HD.
  • This study aimed to determine the prevalence, clinical associations, and predictors of suicidality in individuals with HD.

Purpose of the Study:

  • To investigate the prevalence of suicidality in Huntington's disease (HD) mutation carriers.
  • To identify clinical factors associated with suicidality in HD.
  • To determine predictors of suicidality in HD over a 2-year period.

Main Methods:

  • Suicidality was assessed in 152 HD mutation carriers and 56 non-carriers using the Problem Behaviours Assessment (PBA).
  • A score greater than 1 on the 'suicidal ideation' item indicated the presence of suicidality.
  • Multivariate logistic regression analysis was used to analyze associations and predictors over a 2-year follow-up period.

Main Results:

  • Twenty percent of pre-motor and 20% of motor symptomatic HD mutation carriers reported suicidality, compared to none of the non-carriers.
  • Suicidal HD mutation carriers were more likely to use antidepressants, exhibit apathy, and have a depressed mood or a DSM-IV depression diagnosis.
  • Depressed mood at baseline independently predicted suicidality at follow-up (OR=10.6).

Conclusions:

  • Depressed mood is a significant predictor of suicidality in Huntington's disease.
  • Screening for suicidality in both pre-motor and motor symptomatic HD mutation carriers is essential.
  • Assessing depressed mood can aid in identifying HD individuals at higher risk for suicide.