Hd meaning in medical terminology
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HD in Medical Terminology: Huntington’s Disease
In medical terminology, "HD" most commonly stands for Huntington’s disease. Huntington’s disease is a rare, inherited neurodegenerative disorder that affects the central nervous system. It is characterized by progressive motor symptoms (such as involuntary movements called chorea), psychiatric disturbances, and cognitive decline. The disease is caused by a mutation in the huntingtin (HTT) gene, specifically an expanded CAG trinucleotide repeat, and is inherited in an autosomal dominant pattern. Symptoms usually begin between ages 30 and 50, but can start earlier or later in life. There is currently no cure, and treatment focuses on managing symptoms and improving quality of life 3478.
Standardized Nomenclature and Usage of "HD"
The term "HD" is widely used and standardized in both clinical and research settings to refer specifically to Huntington’s disease. Efforts have been made within the scientific community to ensure consistent use of this abbreviation, especially in publications and collaborative research, to avoid confusion and promote clear communication .
Variants: Juvenile and Pediatric HD
There are specific terms for age-related forms of Huntington’s disease. "Juvenile Huntington’s disease" (JHD) has traditionally referred to cases where symptoms begin before age 21. However, experts now recommend using "pediatric HD" to describe cases in children and teenagers under 18, as this terminology is clearer and more accurate for clinical and research purposes 24.
HD: Not to Be Confused with Other Medical Abbreviations
While "HD" can have other meanings in medicine (such as "hemodialysis" or "high-density lipoprotein"), in the context of neurology and genetics, "HD" almost always refers to Huntington’s disease. The context of use is important to determine the correct meaning 146.
Conclusion
In summary, "HD" in medical terminology most commonly refers to Huntington’s disease, a genetic neurodegenerative disorder. The abbreviation is standardized in research and clinical practice, with specific terms used for pediatric cases. Understanding the context is key, as "HD" can have other meanings in different medical fields.
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