Juvenile Huntington
Juvenile Huntington - Related Videos
01:21
Huntington Disease l: Introduction
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2026
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,...
06:14
Isolation of Alveolar Type II Epithelial Cells from Neonatal, Juvenile, and Adult Murine Lungs Adaptable to Infectious Experimental Settings
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2025
This protocol presents a flow cytometry-based method to isolate viable alveolar type II epithelial cells (AECII) from neonatal, juvenile, or adult murine lungs (infected or non-infected). This approach enables downstream molecular and/or functional studies of AECII to identify their roles during lung inflammation and infection.
05:18
Implantation of Left Ventricular Assist Device (LVAD) in Juvenile Landrace Swine: A LVAD Implantation Model of Pediatric Heart Failure
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2026
This article presents a protocol to implant the left ventricular assist device (LVAD) into a piglet. This model represents a potent way to study the LVAD implantation in children and reveal the mechanism of ventricular reverse remodeling in LVAD treatment.
10:38
Microtubule Plus-End Dynamics Visualization in Huntington's Disease Model based on Human Primary Skin Fibroblasts
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Cited by 2 •
2022
This protocol is dedicated to the microtubule plus-end visualization by EB3 protein transfection to study their dynamic properties in primary cell culture. The protocol was implemented on human primary skin fibroblasts obtained from Huntington's disease patients.
06:43
Heart Dissection in Larval, Juvenile and Adult Zebrafish, Danio rerio
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Cited by 19 •
2011
A clear, standardized method for dissection and isolation of the zebrafish heart at multiple developmental stages are described. Annotation and quantification techniques are also discussed.
FAQs
The key molecular link is the expanded CAG repeat in HTT. This altered genetic sequence leads to production of mutant huntingtin protein, which progressively disrupts neuronal function rather than affecting only one isolated symptom. In juvenile disease, that disruption is studied in relation to movement, cognition, behavior, and the developmental period when those functions are still changing.
Repeat expansion helps explain why symptom timing and severity can vary. Biology research examines the expanded CAG sequence not merely as a diagnostic marker, but as a genetic feature associated with when disease becomes apparent and how strongly it affects an individual. This relationship provides a framework for studying why childhood or adolescent presentation differs across cases.
Juvenile Huntington disease is especially informative for studying early neurodegeneration because disease-related changes arise during childhood or adolescence. Researchers can therefore consider neuronal dysfunction alongside ongoing development. Focusing on movement, cognition, and behavior together helps connect molecular effects of mutant huntingtin with the broader functional changes observed in young people.
Movement, cognition, and behavior are examined as related outcomes because mutant huntingtin disrupts neuronal function in brain circuits serving each domain. This circuit-level view avoids treating Juvenile Huntington disease as a purely motor condition. It also helps biology researchers investigate how one genetic change can produce several interacting effects during early life.
Genetic testing centers on the HTT gene and the presence of an expanded CAG repeat. In the research context, this approach supports early diagnosis and helps relate a person’s genetic finding to symptom timing and severity. Its value extends beyond confirmation: the result can inform genetic counseling and guide interpretation of the disease’s inherited basis.
Patient-derived cells and animal models provide experimental systems for examining Juvenile Huntington disease beyond clinical observation. Researchers use them to investigate how mutant huntingtin disrupts neuronal function and to explore potential treatments. These models are also useful for connecting genetic changes with disease mechanisms, while keeping the focus on processes relevant to early neurodegeneration.
Genetic counseling is relevant because the condition is inherited and genetic findings may have implications for affected individuals and families. Counseling can place an expanded HTT CAG repeat in the context of possible symptom timing and severity, while helping communicate why juvenile onset matters. This makes counseling an important application of biological research, not just a clinical add-on.