tay-sachs disease

Học thuật
Thân thiện
Definition

Noun: A rare, fatal, hereditary disorder of lipid metabolism, characterized by the accumulation of harmful quantities of a fatty substance (ganglioside) in the nerve cells of the brain and nervous system. This accumulation results in the progressive deterioration of mental and physical abilities, typically beginning in infancy and leading to death in early childhood. The condition occurs most frequently in individuals of Ashkenazi Jewish descent.

Usage

The term is used as a medical diagnosis and in discussions of genetics, hereditary disorders, and specific population health. - It is a proper noun and is often capitalized: Tay-Sachs disease. - It can be referred to by its abbreviations: TSD or simply Tay-Sachs.

Examples
  • As a diagnosis:
    • The infant was diagnosed with Tay-Sachs disease at six months old.
    • There is currently no cure for Tay-Sachs disease.
  • In genetic discussion:
    • Carrier screening for Tay-Sachs disease is recommended for couples of Ashkenazi Jewish heritage.
    • The gene mutation responsible for Tay-Sachs disease disrupts the function of a crucial enzyme.
Advanced Usage
  • "Infantile Tay-Sachs disease": The most common and severe form, with symptoms appearing around 3 to 6 months of age.
  • "Juvenile" or "Late-Onset Tay-Sachs disease": Much rarer forms where symptoms begin in later childhood or even adulthood, progressing more slowly.
Variants and Related Words
  • GM2 gangliosidosis, Type 1: The broader biochemical classification for Tay-Sachs disease.
  • Hexosaminidase A deficiency: The specific enzymatic deficiency that causes the disease.
  • Carrier: An individual who has one copy of the recessive gene mutation and can pass it to their children but does not have the disease.
Synonyms
  • TSD (abbreviation)
  • Familial amaurotic idiocy (an older, now less common term)
Related Phrases and Contexts
  • "Tay-Sachs carrier screening": A blood test to determine if an individual carries the gene mutation.
  • "Autosomal recessive disorder": The inheritance pattern of Tay-Sachs disease, meaning a child must inherit two defective copies of the gene (one from each parent) to be affected.
Noun
  1. a hereditary disorder of lipid metabolism occurring most frequently in individuals of Jewish descent in eastern Europe; accumulation of lipids in nervous tissue results in death in early childhood

Từ đồng nghĩa