AMINOACIDOPATHIES.2 Flashcards

1
Q

UREA CYCLE DISORDER: _________ = excess nitrogen that is generated when protein is used by the body

  1. most common form of disorder
    - deficient enzyme
    - build up of ______ and _____ in the blood
  2. mutation of gene
    - helps transport molecules inside cells that are used in production and breakdown of simple sugars, production of proteins, urea cycle
    - molecules transported are also involved in production of _____
  3. treatment:
    - ________ diet
    - ________ supplementation
    - administration of _____ & _____
A

CITRULLINEMIA

  1. TYPE 1
    - argininosuccinic acid synthetase
    - amino acid citrulline & ammonia
  2. TYPE 2
    - CITRIN
    - NUCLEOTIDES
    • high caloric, protein restrictive diet
    • arginine
    • sodium benzoate and sodium phenylacetate
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2
Q

UREA CYCLE DISORDER: _________ = prevents argininosuccinic acid to arginine

  1. deficient enzyme
  2. _____ cannot differentiate citrullinemia from argininosuccinic ACIDEMIA
A

ARGININOSUCCINIC ACIDURIA

  1. ARGININOSUCCINIC ACID LYASE
  2. NEWBORN SCREENING TEST
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3
Q

______: amino acid transport rather than metabolic enzyme deficiency

  1. cystine precipitates out of urine and forms stones in ____,_____, or _______
  2. treatment:
    - absolute minimum of _____ per day
    - consistent _____ intake
    - forms soluble complex with cystine as cystine is relatively insoluble
  3. produces red purple on reaction
    - with ______ groups
  4. for quantitive analysis of amino acid in urine or plasma
A

CYSTINURIA

  1. kidneys, ureters, bladder
  2. treatment:
    - 4L of water
    - high fluid intake
    - Penicillamine
  3. Cyanide Nitroprusside
    - sulfhydryl groups
  4. Ion Exchange Chromatography
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4
Q

_____: migrates before albumin in the classic electrophoresis of serum or plasma proteins

  1. aka
  2. separated by _______ or _________
  3. transport protein for _____& ______
  4. decreased (3)
    - low prealbumin level is sensitive marker of ________
  5. increased in patients receiving _____,_____,______
  6. it has short half life approx _____ days
A

PREALBUMIN

  1. TRANSTHYRETIN
  2. HIGH RESOLUTION ELECTROPHORESIS or IMMUNOELECTROPHORESIS TECHNIQUES
  3. THYROXINE & TRIIODOTHYRONINE
  4. hepatic damage, acute phase inflammatory response, tissue necrosis
    - poor nutritional status
  5. steroids, alcoholism, in chronic renal failure
  6. 2 days
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5
Q

_____: highest concentration in the plasma

1.exists in _____ space
2. plasma albumin conc = _____ albumin/ plasma volume
3. albumin: ___% of COP of intravascular fluid

A

ALBUMIN

  1. EXTRAVASCULAR
  2. INTRAVASCULAR
  3. 80%
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6
Q

______: glycoprotein mainly synthesized in liver

  1. inhibition of _____
  2. neutrophil elastase:
  3. can destroy alveoli:
  4. ______ therapy
    - _____ from pooled plasma specimen
  5. confirms electrophoresis
  6. _____ done using immunofixation
A

A1-ANTITRYPSIN

  1. PROTEASE NEUTROPHIL ELASTASE
  2. WBC
  3. EMPHYSEMA
  4. PROTEIN REPLACEMENT THERAPY
    - PURIFIED A1-ANTITRYPSIN
  5. RADIAL IMMUNODIFFUSION
  6. PHENOTYPING
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7
Q

______: synthesized in developing embryo and fetus and parenchymal cells

  1. AFP levels decrease gradually after birth, reaching adult levels by _____
  2. INCREASED (5)
  3. DECREASED (2)
    - AFP screening between ______ gestational age
    - AFP levels affected by: (3)
A

A1-FETOPROTEIM

  1. 8-12 months
  2. SPINA BIFIDA, NEURAL TUBE DEFECTS, ABDOMINAL WALL DEFECTS, ANENCEPHALY, GENERAL FETAL DISTRESS
  3. DOWN SYNDROME, TRISOMY 18
    - 15-20 weeks
    - maternal weight, race, diabetes
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8
Q

_____: negatively charged even in acid solutions

1.aka
2. _____ also provide useful diagnostic tool in neonates with bacterial infections
3. normal range for healthy individuals is ___ to ____

A

A1-ACIS GLYCOPROTEIN

  1. OROSOMUCOID
  2. SERUM AAG LEVELS
  3. 50-120mg/dL
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9
Q

____: inhibits the activity of enzymes CATHEPSIN G, PANCREATIC ELASTASE, MAST CELL CHYMASE, CHYMOTRYPSIN by cleaning them into different shape

  1. member of ________ family
  2. mutations have been identified in patients with ______ and ______
  3. Associated with Pathogenesis of ________
A

A1-ANTICHYMOTRYPSIN

  1. serine proteinase inhibitor
  2. Parkinson’s disease and Chronic Obstructive Pulmonary Disease
  3. Alzheimer’s Disease
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