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Drugs and diseases reference index

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Medical Dictionary Definitions A-Z List

Medical Dictionary Definitions A - Z - «M»:

  1. MSAFP (maternal serum alpha-fetoprotein) MSAFP (maternal serum alpha-fetoprotein)
    MSAFP (maternal serum alpha-fetoprotein): The presence of AFP, a plasma protein normally produced by the fetus, in the mother's blood. The MSAFP serves as the basis for some valuable tests. AFP is manufactured principally in the fetus's liver and, also, in the fetal gastrointestinal (GI) tract...
  2. MSBP MSBP
    MSBP: Munchhausen syndrome by proxy....
  3. MSG MSG
    MSG: Monosodium glutamate, a sodium salt of the amino acid glutamic acid that enhances the flavor of certain foods. Originally isolated from seaweed, MSG is now made by fermenting corn, potatoes and rice. It does not enhance the four basic tastes (bitter, salty, sour, sweet) but it does enhance the ...
  4. MST MST
    MST:: A multiple subpial transection (MST) is a procedure is used to help control seizures that begin in areas of the brain that cannot be safely removed. The surgeon makes a series of shallow cuts (transections) in the brain tissue. These cuts interrupt the movement of seizure impulses but do...
  5. MSTN MSTN
    MSTN: The gene for myostatin....
  6. MSUD MSUD
    MSUD: Abbreviation for maple syrup urine disease....
  7. mtDNA mtDNA
    mtDNA: Mitochondrial DNA (mtDNA) is the DNA of the mitochondrion, a structure situated in the cytoplasm of the cell rather than in the nucleus (where all the other chromosomes are located). All mtDNA is inherited from the mother. There are 2 to 10 copies of the mtDNA genome in each mitochondrion. ...
  8. MTX MTX
    MTX: Abbreviation for methotrexate....
  9. Mucocutaneous lymph node syndrome Mucocutaneous lymph node syndrome
    Mucocutaneous lymph node syndrome: A syndrome of unknown origin that mainly affects young children. It causes fever, reddening of the eyes (conjunctivitis) and lips and mucous membranes of the mouth, ulcerative gum disease (gingivitis), swollen glands in the neck (cervical lymphadenopathy), and...
  10. Mucolipidosis Mucolipidosis
    Mucolipidosis: One of a group of inherited storage diseases in which both lipids and substances called mucopolysaccharides accumulate in the tissues of the body. Four mucolipidosis have been identified: Mucolipidosis I: due to deficiency of the enzyme muramidase. Mucolipidosis II: due to deficiency...
  11. Mucolipidosis I Mucolipidosis I
    Mucolipidosis I: A type of mucolipidosis (see below) characterized by deficiency of the enzyme neuraminidase (sialidase). There are two forms of the disease. One form is characterized by cherry red spots in the eyes, gradual loss of vision, progressive debilitating myoclonus (muscle spasms), and nor...
  12. Mucolipidosis III Mucolipidosis III
    Mucolipidosis III: A type of mucolipidosis characterized by deficiency of the enzyme N-acetylglucosamine-1-phosphotransferase and features of Hurler syndrome but much slower progression. Also known as pseudo-Hurler polydystrophy. The mucolipidoses are a group of storage diseases in which both lipid...
  13. Mucolipidosis IV Mucolipidosis IV
    Mucolipidosis IV: A type of mucolipidosis due to mutation in the gene encoding mucolipin-1. Most patients have developmental delay and mental retardation, clouding of the cornea of the eye, and severe visual impairment. The mucolipidoses are a group of storage diseases in which both lipids and su...
  14. Mucopolysaccharidosis Mucopolysaccharidosis
    Mucopolysaccharidosis: One of a series of inherited metabolic disorders affecting a type of complex carbohydrate called a mucopolysaccharide that is deposited in body tissues because the person lacks the specific enzyme needed to metabolize it. The deposition of mucopolysaccharide in tissues damag...
  15. Mucopolysaccharidosis type I Mucopolysaccharidosis type I
    Mucopolysaccharidosis type I: Hurler syndrome, Scheie syndrome, and Hurler-Scheie syndrome. All three of these syndromes are due to varying degrees of deficiency of the enzyme alpha-L-iduronidase. See also: Mucopolysaccharidosis....