Glycosides Flashcards
Anthraquinone MOA, CS, Plants?
MOA: purgative
CS:
Plants: Coffee weed (bad coffee), Aloe, Buckthorn
Calcinogenic glycoside MOA, CS, Plants?
Vit D analog
MOA:
CS: hyperCa, hyperPhos, lameness
Plants: Turkey berry
Carboxy-atractyloside MOA, CS, Plants?
MOA: hepatottoxicity
CS: renal damage, hypoGly, salivation
Plants: Cocklebur
Cardiac Glycoside MOA, CS, Plants?
MOA: inhibits Na/K ATPase
CS: cardiotoxic
TX: Digoxin immune FAB
Plants: Oleander, Foxglove, Milkweed, Periwinkle
Coumarin MOA, CS, Plants?
MOA: inhibit Vit K epoxide reductase
CS: hemorrhage
Plants: Sweet clover,
Cyanogenic glycosides MOA, CS, Plants?
MOA: inhibit cytochrome oxidase
CS: Acute- lack of cell energy
Chronic- CNS degeneration
Plants: Johnson, Sudan grass, Elderberry
Cycasin MOA, CS, Plants?
MOA: unknown toxin-> carcinogenic, teratogenic, axonal degeneration
CS: GI, liver disease/CNS syndrome
Plants: Sago palm, cardboard palm, Coontie
Glucosinolate MOA, CS, Plants?
MOA: antithyroid
CS: antithyroid
Plants: Soybean, Flax, yucky vegetables
Nitropropanol glycoside MOA, CS, Plants?
MOA: inhibits Krebs cycle
CS: Cattle/sheep- resp CNS
horses/rodents- CNS
Plants: Milkvetch, violets, lotus, Indigo
Phytoestrogens MOA, CS, Plants?
MOA: infertility in males and females
CS: see above
Plants: White clover, alfalfa
Protoanemonin MOA, CS, Plants?
MOA: volatile oil
CS: GI and dermal irritation
Plants: Buttercup family
Ptaquiloside MOA, CS, Plants?
MOA: BM suppression, Neoplasia UT, URT, retinal degeneration
CS: aplastic anemia, enzootic hematuria
Plants: Bracken fern,
Coffee senna (bad coffee) MOA and CS?
Anthraquinone -> cathartic
Unknown MOA: Purgative, sk/cardiac m myopathy, urine coffee colored, kidney damage
Horses usually die due to liver failure
DDX: monensin
Cocklebur MOA and CS?
Carboxy sulfated glycoside
Hepatotoxicity, renal damage, hypoglycemia
seed pods-> mechanical injury
Oleander and milkweed MOA and CS? TX?
Cardiac glycoside-> inhibit Na/K ATPase
one leaf can kill
TX: digoxin immune FAB
Sweet clover MOA and CS?
Coumarin glycoside-> inhibits Vit K epoxide reductase
Hemorrhage
TX: Vit K1/whole blood
Nitrate accumulation-> methemoglobinemia
Acute -> abortions due to fetal methemoglobinemia
Chronic-> abortions due to decrease progesterone
Elderberry MOA and CS?
Cyanogenic glycoside and accumulates cyanide (green berries)-> inhibits cytochrome oxidase and cell respiration
Acute- mm irritation, vasoconstriction, inhibit glycolysis
Chronic- anti-T4, CNS degeneration
Johnson grass, Sudan grass, sorghum MOA (3) and CS?
Cyanogenic glycoside-> inhibits cytochrome oxidase and cell respiration
Acute- mm irritation, vasoconstriction, inhibit glycolysis
Chronic- anti-T4, CNS degeneration
Se accumulation
Acute-> GI and resp signs
Chronic -> hoof and hair deformities
Nitrate accumulation-> methemoglobinemia
Acute -> abortions due to fetal methemoglobinemia
Chronic-> abortions due to decrease progesterone
Sago Palm MOA and CS?
Cycasin glycoside -> teratogenic, carcinogenic, liver damage
Neurotoxic aa
Unknown toxin-> axonal degeneration
GI, liver disease or CNS syndrome and ataxia
Coontie MOA and CS?
Cycasin glycoside -> teratogenic, carcinogenic, liver damage
Neurotoxic aa
Unknown toxin-> axonal degeneration-> GI, liver disease or CNS syndrome and ataxia
Milkvetch MOA and CS?
Nitropropanol glycoside-> inhibits krebs cycle
Cattle/sheep-> respiratory and CNS “cracker heels/roaring disease”
Horses/rodents-> CNS signs
Se accumulation
Acute-> GI and resp signs
Chronic -> hoof and hair deformities
Alfalfa MOA and CS?
Phytoestrogen-> infertility in males and females
Se accumulation
Acute-> GI and resp signs
Chronic -> hoof and hair deformities
Nitrate accumulation-> methemoglobinemia
Acute -> abortions due to fetal methemoglobinemia
Chronic-> abortions due to decrease progesterone
Triterpenoid (strodial) saponins-> GI signs
Moldy-> forage induced photosensitization-> primary and 2nd to liver damage
Bracken fern MOA and CS?
Ptaquiloside -> BM suppression, UT cancer (cows)
Aplastic anemia (cows/sheep), enzootic hematuria, renal/GI tumors (sheep)
Thiaminase-> neurotoxicity in monogastrics (also in horsetail)
Agave lechugilla MOA and CS?
Steroidal saponins -> liver damage
Hepatogenic photosensitization