Asparagine
Asparagine: An amino acid, one of the 20 building blocks of protein. Asparagine is nonessential to the diet since the body can synthesize it. Asparagine is important to the metabolism of ammonia. It was the first amino acid to be isolated from a natural source, asparagus juice (1806). Symbol: Asn.
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- Aspartame
Aspartame: A man-made sweetener with almost no calories used in place of sugar. A diet program with aspartame and exercise gives better results than without this sweetener. People lose more weight and regain less weight. Aspartame is a compound of two amino acids — aspartic acid and phenylalanine. Because it is essentially half phenylalanine, people […]
- Aspartate aminotransferase (AST)
Aspartate aminotransferase (AST): Also known as serum glutamic oxaloacetic transaminase (SGOT), AST is an enzyme that is normally present in liver and heart cells. AST is released into blood when the liver or heart is damaged. The blood AST levels are thus elevated with liver damage (for example, from viral hepatitis) or with an insult […]
- Aspartic acid
Aspartic acid: An amino acid, one of the 20 building blocks of protein. A amino acid that is not essential to the human diet, aspartic acid was discovered in protein in 1868. It has a role as a neurotransmitter. Symbol: Asp.
- Asperger syndrome
Developmental disorder: One of several disorders that interrupt normal development in childhood. They may affect a single area of development (specific developmental disorders) or several (pervasive developmental disorders). With early intervention, most specific developmental disorders can be accommodated and overcome. Early intervention is absolutely essential for pervasive developmental disorders, many of which will respond to […]
- Asperger's syndrome
Asperger’s syndrome: See Asperger syndrome. Common misspellings include Aspergers, Aspberger, Aspberger’s, Aspbergers, Asberger, Asbergers, or Asberger’s.