X-SCID

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Definition

Noun: 1. A specific, severe form of SCID (Severe Combined Immunodeficiency): X-SCID is a genetic disorder that primarily affects male children. It results from a mutation in a gene that provides instructions for making a protein essential for the proper development and function of immune cells, specifically T cells and natural killer (NK) cells. This protein is part of a receptor on the cell surface that allows these cells to respond to critical growth signals.

Usage Examples
  • Noun:
    • Early diagnosis of X-SCID is crucial for a successful bone marrow transplant.
    • The study focused on gene therapy as a potential treatment for X-SCID.
    • Newborn screening can help identify infants with X-SCID before they become seriously ill.
Advanced Usage
  • "X-linked severe combined immunodeficiency": This is the full medical term for X-SCID, indicating the disorder is caused by a mutation on the X chromosome.
    • The genetic counselor explained the inheritance pattern of X-linked severe combined immunodeficiency.
Variants and Related Words
  • SCID (Severe Combined Immunodeficiency) (n): The broader category of disorders to which X-SCID belongs, all characterized by a severe defect in both the T-cell and B-cell arms of the immune system.
    • There are several different genetic forms of SCID.
Synonyms
  • X-linked SCID: The most direct synonym, using the full abbreviated form.
  • Bubble boy disease (informal, potentially insensitive): A colloquial term historically used due to the extreme isolation required to protect affected individuals from infection. Note: This term is considered outdated and disrespectful in medical contexts.
Related Terms (Not Synonyms)
  • Immunodeficiency (n): A state where the immune system's ability to fight infectious disease is compromised or entirely absent.
  • Genetic mutation (n): A permanent alteration in the DNA sequence that makes up a gene, which is the cause of X-SCID.
Noun
  1. SCID in male children resulting from mutation of a gene that codes for a protein on the surface of T cells that allows them to develop a growth factor receptor

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