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final toxins
toxins for final
115
Other
Undergraduate 4
12/08/2011

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Cards

Term
carbon tetrachloride
Definition
Liver:
• Centrilobular Necrosis
• Fatty liver(steatosis)
• Cirrhosis
• Destroy P450 by destroying haem moiety
• Neoplasia
• Fibrosis
• Non mutagenic carcinogen
Term
Dimethylnitrosamine:
Definition
Liver:
• Necrosis
• Fatty Liver(steatosis)
Term
Thioacetamide:
Definition
Liver:
• Necrosis
Term
Aflotoxin
Definition
Liver:
• Necrosis
• Hepatocellular neoplasia
• Tumors/neoplasia
• Direct mutagen for carcinomas
Term
Ethanol
Definition
Liver:
• Necrosis
• Steatosis
• Heptaoceullar neoplasia
• Canalicular cholestasis
• Fibrosis
• Dec heart contractility by interfering with Ca binding troponin
Term
Beryluim
Definition
Liver:
• Midzonal Necrosis
• Attack Kupffer cells, Ito, and endothelial cells
Term
allyl alcohol
Definition
Liver:
• Periportal Necrosis
Term
paracetamol
Definition
Liver:
• Necrosis
• Depletes GSH directly producing oxygen
Term
diquat
Definition
Liver:
• Necrosis
Term
carbon disulfide
Definition
Liver:
• Water accumulation in hepatocytes(hydropic degeneration) > failure of sodium balance
• Suicidal inactivation of P450 via reacting with detox enzymes
Cardio:
• artherosclerosis
Term
Iron
Definition
Liver:
• (gerbils) cirrhosis after repeat insults; mimics human secondary haemchromatosis
• Hepatocyte death
Term
Ricin
Definition
Liver:
• Initally attack Kupffer cells
• Attacks Ito and endothelial cells
Term
ethionine
Definition
Liver:
• Water accumulation
• Steatosis
• Non mutagenic carcinogen
Term
APAP
Definition
Liver:
• Centrilobular necrosis
Term
Bromobenzene
Definition
Liver:
• Centrilobular necrosis
Term
Isoniazid
Definition
Liver:
• Centrilobular necrosis
Term
phosphorus
Definition
Liver
• Midzonal necrosis
Term
lithocholic acid
Definition
Liver
• Cholestasis
Term
napthyl
Definition
Liver
• cholestasis
Term
anabolic steroids
Definition
Liver
• cholestasis
Term
chlpromazine
Definition
Liver
• cholestasis
Term
hexachlorobenzene
Definition
Liver
• Acute toxic porphyria

Dermal:
• Photosensitivity
• Biosynthetic pathway of heme is disrupted
• Porphyrin pre-cursors accumulate→fluoresce when exposed to UV
Term
chloroform
Definition
Liver
• Neoplasia
Kidney:
• Metabolized to phosgene
• Necrosis of PCT epithelium
• Chronic leads to tumors
Cardio
• Suppresses SA node
• Sensitizes heart to adrenaline by reducing refractory period of Purkinjie
• Tachycardia
• Arrhythmias
Term
pyrrolizidine alkaloids
Definition
Liver
• Neoplasia
• Cirrhosis
• Vascular disorder
• Steatosis
• Hemorrhagic necrosis
Lungs
• Necrosis > cell proliferation > thickening of vasculature
• Hypertension
Term
acetylaminofluorene
Definition
Liver
• Neoplasia
Term
valproic acid
Definition
Liver
• Steatosis
Term
copper
Definition
Liver
• Hepatocyte death
Term
dimethylformamide
Definition
Liver
• Hepatocyte death
Term
germander
Definition
Liver
• Hepatocyte death
Term
microcystin
Definition
Liver
• Hepatocyte death
• Vascular disoders
Term
chloropromazine
Definition
Liver
• Canalicular cholestasis
Term
cyclosporin a
Definition
Term
estrogens
Definition
Term
manganese
Definition
Term
phalloidin
Definition
Term
mehylene dianiline
Definition
Term
sporidesmin
Definition
Term
arsenic
Definition
Term
vitamin a
Definition
Term
dacarbazine
Definition
Term
androgens
Definition
Term
thorium dioxide
Definition
Term
vinyl chloride
Definition
Term
tetracycline
Definition
Term
polyvinlchloride
Definition
Term
aminoaryl niroaryl axoaryly
Definition
Term
2-napth
Definition
Term
nitrosamines
Definition
Term
PAH
Definition
Term
TCDD
Definition
Term
PCB
Definition
Liver
• Non mutagenic carcinogen
Term
Aldrin
Definition
Liver
• Non mutagenic carcinogen

Neuro:
• Acts on GABA receptor (stops inhibitory mechanism of GABA)
• Prevents chloride ions from entering neurons > tremors and convulsions
Term
Texaphene
Definition
Liver
• Non mutagenic carcinogen
Term
chlordane
Definition
Liver
• Non mutagenic carcinogen
Term
mercuric salts
Definition
Kidney:
• Necrosis in PCT
• Alters Calcium homeostasis
• Inhibits cellular func by reacting with thiols in proteins
• Glomerulonephritis
• Chronic leads to tumors
Term
cadmium
Definition
Kidney:
Cardio:
• Hypertrophy
• hypertensions
Term
chromium
Definition
Kidney:
• Acute necrosis of PCT
Term
lead
Definition
Kidney:
• Intranuclear inclusion bodies
Cardio:
• Variety of degenerative changes in heart (cardiomyopathies)
Neuro:
• Peripheral neuropathy via attacking myelin
• Learning deficits & dementia
• Encephalopathy
Term
HCBD
Definition
Kidney:
• Lesions in the PCT
Term
petro hydrocarbons
Definition
Kidney:
• Excessive accumulation of proteins(hyaline droplets) in epithelial of PCT
• Renal adenomas
• Necrosis with regeneration
• Binds to alpha 2 globulins
Term
aminoglycosides
Definition
Kidney:
• Accum in lyso
• Phospholipidosis
• Mito damage
• Tubular necrosis
Cardio:
• Inhibit Ca channels (slow inward movement)
• Inhibits uptake and binding of Ca at sarcolemmal sites
Term
cephalasporins
Definition
Kidney:
• Redox cycling > lipid peroxidation
Term
cisplatin
Definition
Kidney:
• Tubule tox
Term
sulfur dioxide
Definition
Lungs:
• Bronchoconstriction
Term
formaldahyde
Definition
Lungs:
• Bronchoconstriction
Term
ozone
Definition
lungs
Term
nirogen dioxide
Definition
lungs
Term
chlorine
Definition
lungs
Term
phosgene
Definition
lungs
Term
paraquat=methyl viologen
Definition
Lungs:
• Bronchoconstriction
• Type 1 and 2 damage
• Damage to capillaries
• Necrosis of term bronchioles
• Alveolar and interstitial edema
• Fibroblasts and collagen syn
• Intraalveolar fibrosis
Term
triakylphosphorothiates
Definition
Lungs:
• Type I damage
• Hypertrophy and hyperplasia of type 2
• Interstitial thickening
• Inflammation and alveolar edema
Term
furans
Definition
Lungs:
• Brochiolar necrosis
• Chronic fibrosis
Term
blemycin
Definition
Lungs:
• Alveolar and interstitial edema
• Proliferation of fibroblasts
• Metal complex leads to ROS and DNA damage
Term
toluene
Definition
Lungs:
• Hypersensitivity
Term
ammonia
Definition
Lungs:
• Sm. Muscle spasms
Term
aconite
Definition
Cardio:
• Opens Na channels
Term
TCA-Imipramine
Definition
Cardio:
• Blocks Na Channels
Term
tetrodotoxin
Definition
Cardio:
• Blocks Na channels
Neuro:
• Blocks Na channels at presynaptic cleft
• paralysis
Term
saxitoxin
Definition
Cardio:
• Blocks Na channels
Term
penicillin
Definition
Cardio:
• Myocarditis
Term
cobalt
Definition
Cardio:
• Blocks Ca channels
Term
danorubicin
Definition
cardio
Term
digitalis
Definition
cardio
Term
methanol, isopropyl
Definition
Cardio:
• Dec heart contractility by interfering with Ca binding to troponin
Isopropyl
Term
aldehydes
Definition
Cardio:
• sympathomimetic
Term
cocain
Definition
Cardio:
• blocks reuptake of catecholamines
• inc heart rate and BP
• sympathetic stim
• cardiac arrest or seizures followed by respiratory arrest
• Arrhythmias
• Myocardial Ischemia
• Hypertension
• CHF
• Inhibits Na channels- local anesthetic
• Inc refractory period
• Dec depolarization
• Ventricular fibrillations
• Myocyte necrosis(Myocardial Infarction)
Neuro:
• Blocks reuptake of catecholamines at axon terminals
• Paralysis and Eurphoria
Term
carbon monoxide
Definition
Cardio:
• Artherosclerosis
• Tachycardia
• DEATH
Term
nitrates
Definition
Cardio:
• Vascular spasms and BP
• methemoglobin
Term
chloraphenicol
Definition
Cardio:
• Aplastic anemia
Term
lindane
Definition
Cardio:
• Aplastic anemia
Term
benzene
Definition
Cardio:
• Aplastic anemia
Term
phenylhyrazine
Definition
Cardio:
• Hemolytic anemia
Term
aniline
Definition
Cardio:
• Hemolytic anemia
Term
pyrethrins
Definition
Neuro:
• Disrupt membrane ion transport in nerve axons
• Prolong Na reflux and may block inhibitory pathways(pyrethroids)
• Hyperexcitablity in and convulsions in insects; whole body tremors in mammals (type1)
• Ataxia and incoordination in insects and paresthesias in humans(type 2)
Term
cyclodienes(deldrin aldrin. chlordane)
Definition
Neuro:
• Acts on GABA receptor (stops inhibitory mechanism of GABA)
• Prevents chloride ions from entering neurons > tremors and convulsions
Term
DDT
Definition
Neuro:
• Acts on Na channel to cause “leakage” of Na ions
• DDT Jitters> neuron fires impulses> muscle twitches> convulsions & death
Term
Taxol
Definition
Neuro:
• Binds to tubules and stabilizes them preventing polymerization
• Peripheral neuropathy
• Stabilizes microtubules preventing disassociation
Term
Nicotine
Definition
Neuro:
• At axon terminals binds to nicotinic receptors> inc in HR and BP
Term
Methyl mercury
Definition
Neuro:
• Attacks soma
• Dec in glycolysis, nucleic acid, and protein synthesis
• Dementia, retardation, paralysis
• Diffused encephalopathy
Term
Botulinum
Definition
Neuro:
• Presynaptic cleft: blocks liberation of Ach > paralysis
• Breaks down SNARE complex at presynaptic cleft
Term
Tetnus
Definition
Neuro:
• At presynaptic terminal: interrupts fusion of vesicle to terminal wall
• Paralysis
Term
vesmicol
Definition
Neuro:
• At presynapse: blocks Ach entering vesicles> no release of NT
• Paralysis
Term
Hemicholinum
Definition
Neuro:
• At presynaptic cleft: blocking choline reuptake> preventing transmission
• Paralysis
Term
Aropine
Definition
Neuro:
• Blocks muscarinic receptors
• Restlessness, irritability, hallucinogenicity
Term
Latrotoxin( black widow)
Definition
Neuro:
• Blocks muscarinic receptors
• Restlessness, irritability, hallucinogenicity
Term
alpha bungarotoxin
Definition
Neuro:
• Binds to postsynaptic Ach receptor> prevents depolarization
• Respiratory failure & paralysis
Term
Diptheria
Definition
Neuro:
• Attack myelin at Schwan cells>demyelination>paralysis
• Myelinopathy
Term
Aluminum
Definition
Neuro:
• Encephalopathy with neurofibrillary degeneration via abnormal accumulation of neurofilaments and perinuclear region of neuron
• Alzheimer’s and dementia
Term
MPTP
Definition
Neuro:
• Contaminant in synthetic heroin
• Metabolized to MPP+ in astrocytes→neurotoxic to dopamine neuron
• Inhibition of oxidative phosphorylation
Term
Phosphocreosate & TOCP
Definition
Neuro:
• Decrease long and large diameter axons CNS & PNS→OPIDN
Term
n-hexane
Definition
Neuro:
• Reacts with amino groups to form pyrroles
• Attacks neurofilaments causing swelling in distal axons
• Transport is obstructed and degeneration occurs
• “stocking and glove”→sensory loss of peripheral areas
Term
vincristine & viniva(plant alkyloids
Definition
Neuro:
• Peripheral neuropathies by depolymerizing tubules causing axonopathies
Term
colchicine
Definition
Neuro:
• Peripheral neuropathies by depolymerizing tubules causing axonopathies
• Binds to tubulin monomers preventing association into tubules
Term
hexachlorophene
Definition
Neuro
• Causes intramyelinic edema
• Myelinopathy
Term
clutamate
Definition
Neuro
• Accumulate outside the cells causing Ca to enter and cause neuronal damage→death
• Targets neuronal and glial membranes
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