pyrrolizidine alkaloid/atrofija

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Spongy degeneration in the central nervous system of domestic animals. Part III: Occurrence and pathogenesis hepatocerebral disease caused by hyperammonaemia.

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Severe spongy degeneration of the central nervous system (CNS) was seen in 11 cattle, 19 sheep, 4 pigs and 1 goat, associated with a variety of hepatic diseases, particularly those caused by hepatotoxic pyrrolizidine alkaloids. It was also seen in a milder form in 2 of 8 horses examined, 1 dog of 5

Spongy degeneration in the central nervous system of domestic animals. Part II: Chemical analysis and vascular permeability studies.

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Two experiments were completed in which brains and spinal cords from lambs affected with spongy degeneration of the central nervous system (CNS) were analysed for water, sodium and potassium, as measures of cerebral oedema. In a third experiment, lambs with CNS spongy degeneration were tested for

Clinicopathologic study of horses surviving pyrrolizidine alkaloid (Senecio vulgaris) toxicosis.

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Twenty horses of various ages had inadvertently ingested alfalfa hay contaminated with Senecio vulgaris. Among them, 4 died of liver disease. Blood was collected from affected horses at monthly intervals for 7 months and at the 9th and 14th months. The following serum enzymes and chemical items were

Monocrotaline-induced pulmonary endothelial dysfunction in rats.

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To study the role of endothelial damage in the pathogenesis of lung injury induced by the pyrrolizidine alkaloid monocrotaline, three functions (angiotensin converting enzyme (ACE) activity, plasminogen activator (PLA) activity, and prostacyclin (PGI2) production) associated with the pulmonary

Pyrrole detection and the pathologic progression of Cynoglossum officinale (houndstongue) poisoning in horses.

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Houndstongue (Cynoglossum officinale), a noxious weed that contains pyrrolizidine alkaloids (PAs), infests pastures and fields in the western United States and Europe. The purpose of this study was to develop techniques to better diagnose PA poisoning and describe the progression of gross and

The hepatic endothelial carcinogen riddelliine induces endothelial apoptosis, mitosis, S phase, and p53 and hepatocytic vascular endothelial growth factor expression after short-term exposure.

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Riddelliineis a naturally occurring pyrrolizidine alkaloid found in certain poisonous rangeland plants of the western United States. In National Toxicology Program 2-year studies, riddelliine induced high incidences of hemangiosarcoma in the liver of F344/N rats (both sexes) and B6C3F1 mice (males).

Cloning and expression of a cDNA encoding homospermidine synthase from Senecio vulgaris (Asteraceae) in Escherichia coli.

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The enzyme homospermidine synthase catalyzes the NAD+-dependent conversion of 2 mol putrescine into homospermidine. Instead of putrescine, spermidine can substitute for the first putrescine moiety in plants, in which case diaminopropane instead of ammonia is released. The enzyme facilitates the

Veno-occlusive liver disease: a case report.

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A case of veno-occlusive liver disease (VOLD) in a 12-years old Ethiopian boy is described The salient clinical features and gross and microscopic examination of biopsy material are reviewed. Veno-occlusive disease which occurs in the West Indies, East and West Africa, and India is an acute,

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