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Hepatic tox
toxicology
32
Other
Undergraduate 4
12/07/2011

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Term
Liver Functions
Definition
-Storage and filtration of blood
-metabolism and storage of xenobiotics, nutrients and other compounds
-secretory and excretory activities in bile formation
-synthesis of blood plasma constituents
Term
liver is susceptible to chemical damage because of....
Definition
-anatomical position
-metabolic functions
-enterohepatic circulation
-high concentration of binding sites
Term
factors in liver toxicity
Definition
-location and specialized process for uptake and biliary secretion
-Abundant capacity for bioactivation influences rate of exposure
Term
kupffer cells
Definition
macrophages
Term
endothelial cells
Definition
secrete cytokines and nitric oxide
Term
stellete cells ( ito cells)
Definition
vitamin a storage secrete collogen
Term
acute toxic effects of liver
Definition
-steatosis
-necrosis
-hepatitis
-choleostasis
Term
steatosis can occur by
Definition
-increased synthesis of tryglycerides
-decreased protein synthesis
-inhibition formation or assembly
-inhibition or release of VLDL
Term
Lipid peroxidation
Definition
-loss of drug metabolizing enzymes
-loss of glucose-6-phosphates
-loss of protein synthesis
-loss of capacity to form and excrete VLDL
Term
Fibrosis
Definition
-active fibroplasia associated with inflammation
-ito cellsy synthesize and secrete collagen
-ethanl, carbon tet, pvc
Term
chirrosis
Definition
-disorganization of liver architecture by widespred fibrosis and nodule formation
-alcoholism, viral hepatitis
Term
ethionine
Definition
-fatty liver
-steatosis
Term
ethanol
Definition
-fatty liver
-chirrhosis
-steatosis
-fibrosis
Term
acetaminophen
Definition
-zone 3 necrosis
Term
bromobenzene
Definition
-zone 3 necrosis
Term
isoniazid
Definition
-zone 3 necrosis
Term
allyl alcohol
Definition
-zone 1 necrosis
Term
beryllium
Definition
-zone 2 necrosis
Term
phosphorus
Definition
-zone 2 necrosis
Term
chloropromazine
Definition
choleostasis
Term
lithocholic acid
Definition
choleostasis
Term
naphthyl
Definition
choleostasis
Term
anabolic and contraceptive steroids
Definition
choleostasis
Term
hexochlorobenzene
Definition
porphyria
Term
chloroform
Definition
neoplasia
Term
pyrrolizidine alkaloids
Definition
neoplasia
Term
aflotoxin
Definition
neoplasia
Term
valproic acid
Definition
steatosis
Term
tetracycline
Definition
inhibit secretion of VLDL(steatosis)
Term
amanita phalloides
Definition
zone 1 necrosis
Term
polyvinylchloride
Definition
fibrosis
Term
Iron
Definition
zone 1 necrosis
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