Therapeutics: Drug induced liver disease

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Author:
kyleannkelsey
ID:
271978
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Therapeutics: Drug induced liver disease
Updated:
2014-04-26 12:38:14
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Therapeutics Drug induced liver disease
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Therapeutics: Drug induced liver disease
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Therapeutics: Drug induced liver disease
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  1. What type of immune cells are present at a high percentage in the liver due to the large amount of toxins present?
    Macrophages (Kupffer cells and KC) and Natural Killer cells
  2. If a T cell mounts an inflammatory response against a liver cell, what cytokines will be released?
    • TNF-alpha
    • IFN-gamma
    • IL-1B
  3. If a T cell mounts hepatoprotective response against a liver cell, what cytokines will be released?
    • IL-10
    • OL-6
    • Prostaglandins
  4. What is Hapten or p-i theory?
    • Pharmacological interaction of drugs with immune receptors
    • Drugs or their reactive metabolites covalently bind to endogenous hepatic proteins to form immunogenic drug-protein adducts
  5. What are the clinincal feature suggesting an adaptive immune response has occurred?
    • Rash, fever, eosinophila
    • Delay of reaction (1-8 weeks)
    • Follows repeat drug exposure
    • Presence of antibodies specific for the drug
  6. Is anaphylaxis an adaptive immune response?
    No, can happen after a single exposure
  7. What is Centrolubular necrosis
    • Direct cell damage usually due to toxic metabolite
    • Often dose related
  8. What drugs cause Centrolubular necrosis?
    APAP, Street drugs ecstasy and cocaine
  9. What is Steatohepatitis and Phospholipidosis?
    Accumulation of fatty acids or phospholipids in hepatocyte
  10. What drugs cause steatohepatitis?
    ETOH, Tetracycline, Valproic Acid
  11. What drugs cause phospholipidosis?
    Amiodarone
  12. What constitutes a hepatic vascular disorder?
    Lesions form in hepatic venules, sinusoids, or portal vein
  13. What drugs cause hepatic vascular disorders?
    Androgens, Estrogens, Tamoxifen, Azathioprine
  14. What is Generalized necrosis?
    • Mimics changes characteristic of viral hepatitis
    • Symptoms usually delayed a week or more from exposure to drug
  15. What drug causes generalized necrosis?
    Isoniazid
  16. What is Toxic cirrhosis?
    Drug causes eventual fibrosis
  17. What drugs cause toxic cirrhosis?
    Methotrexate, High-dose Vitamin A
  18. What is Cholestatic disease?
    Prevents movement of bile (containing toxic excretion products) from liver into gallbladder for excretion
  19. What drugs cause Cholestatic disease?
    Chlorpromazine, Augmentin, Carbamazepine
  20. What laboratory test would you use to evaluate liver injury?
    • Alk Phos
    • GGT/GGTP
    • AST
    • ALT
    • LDH
    • Bilirubin
    • (1st 4 are the main ones)
  21. What type of drugs are most likely to cause elevated bilirubin?
    Those that cause Cholestatic liver disease(Chlorpromazine, Augmentin and Carbemazapine)
  22. What is DILIN?
    Drug induced liver injury network
  23. What OTC drugs were listed as examples of “strongly associated with liver disease”?
    • Felbamate (Felbatol)
    • Tolcapone (Tasmar)
    • Propylthiouracil (PTU)
    • Kava Kava
  24. What Rx drugs were listed as examples of “strongly associated with liver disease”?
    • Telithromycin (Ketek)
    • Amiodarone and Dronadarone (Multaq)
    • Maraviroc (Selzentry)
    • Valproic Acid (Depakote)

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