alkapton

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alkapton

A doctor examines a urine sample that has turned dark due to alkapton.

Definition

Noun: 1. A chemical compound: A specific organic acid that appears as an intermediate substance during the metabolic breakdown of the amino acids tyrosine and phenylalanine. It is characterized by its tendency to cause urine to darken upon exposure to air when present in large amounts.

Usage
  • Alkapton is a biochemical term used primarily in medical and biochemical contexts.
  • It is often discussed in relation to a rare genetic disorder, alkaptonuria, where the body cannot properly break down this acid.
Examples
  • The presence of alkapton in the urine is a key diagnostic marker for the condition alkaptonuria.
  • Researchers studied the accumulation of alkapton in connective tissues.
  • The metabolic pathway shows how tyrosine is converted into alkapton.
Advanced Usage
  • Alkapton body: A term sometimes used to describe the pigmented deposits found in the tissues of individuals with alkaptonuria, caused by the polymerization of alkapton.
Variants and Related Words
  • Alkaptonuria (n): The inherited metabolic disorder characterized by the excessive accumulation and excretion of alkapton.
  • Homogentisic acid (n): The modern biochemical name for alkapton. "Alkapton" is the older, traditional name for this compound.
Synonyms
  • Homogentisic acid (This is the direct, modern synonym used in scientific literature).
alkapton

A doctor examines a urine sample that has turned dark due to alkapton.

Noun
  1. an acid formed as an intermediate product of the metabolism of tyrosine and phenylalanine

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