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Oldal 1 tól től 233 eredmények
Dendrobium nobile Lindl alkaloid, a novel autophagy inducer, protects against axonal degeneration induced by Aβ25-35 in hippocampus neurons in vitro.
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OBJECTIVE
Axonal degeneration is a pathological symbol in the early stage of Alzheimer's disease (AD), which can be triggered by amyloid-β (Aβ) peptide deposition. Growing evidence indicates that deficit of autophagy eventually leads to the axonal degeneration. Our previous studies have shown that
Degeneration phenomenon of alkaloid-producing strains of Claviceps paspali.
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Neurofibrillary degeneration induced by Vinca alkaloids: clinical and experimental.
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An ergot alkaloid preparation (Hydergine) in the treatment of presenile brain atrophy (Alzheimer's disease): case report.
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Topical application of colchicine, vinblastine and vincristine prevents strychnine-enhanced transsynaptic degeneration in the medullary dorsal horn following transection of the inferior alveolar nerve in adult rats.
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The effect of topical application of axonal transport blockers to the transected peripheral nerve was assessed by quantitating the strychnine-enhanced transsynaptic degeneration following transection of the inferior alveolar nerve in adult rats. Systemic administration of strychnine (1 mg/kg/day)
Toxicological studies of the antimicrobial alkaloid juliflorine.
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Juliflorine (CAS 76202-00-1), an antibacterial and antidermatophytic alkaloid, was studied for its toxicity in mice, rabbits, chicks, chick embryos and vero cell line. In mice LD50 was determined as 17.46 mg/kg; in rabbits 33.11 mg/kg; in chicks 24.104 mg/kg; and in chick embryos 18.284 mg/kg. In
Electroencephalographic and clinical changes as correlated in geriatric patients treated three months with an ergot alkaloid preparation.
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The results of a 3-month trial with an ergot alkaloid preparation (Hydergine) in 16 geriatric patients showed that, in accordance with a previously proposed working hypothesis, the improvement induced by the drug in electroencephalographic age-related changes was accompanied by clinical improvement
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
Dendrobium nobile Lindl Alkaloids Ameliorate Cognitive Dysfunction in Senescence Accelerated SAMP8 Mice by Decreasing Amyloid-β Aggregation and Enhancing Autophagy Activity
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Background: Dendrobium nobile is a well-known traditional Chinese herbal medicine used for age-related diseases. Dendrobium nobile Lindl alkaloid (DNLA) is the active ingredient to improve learning and memory deficits in laboratory
Molecular cloning and analysis of strictosidine beta-D-glucosidase, an enzyme in terpenoid indole alkaloid biosynthesis in Catharanthus roseus.
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Strictosidine beta-D-glucosidase (SGD) is an enzyme involved in the biosynthesis of terpenoid indole alkaloids (TIAs) by converting strictosidine to cathenamine. The biosynthetic pathway toward strictosidine is thought to be similar in all TIA-producing plants. Somewhere downstream of strictosidine
Inhibition by biscoclaurine alkaloid of lipid peroxidation in biological membranes.
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Biscoclaurine-type alkaloids were examined for ability to act as membrane-stabilizing agents and to protect against lipid peroxidation and deterioration of biological membrane. The following results were obtained. Biscoclaurine-type alkaloids inhibit Fe2+-induced lipid peroxidation of biological
Synthesis of radiolabelled 1-trichloromethyl-1,2,3,4-tetrahydro-beta-carboline (TaClo), a neurotoxic chloral-derived mammalian alkaloid, and its biodistribution in rats.
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Chloral hydrate, the oldest synthetic hypnotic, is still among the most common agents used for conscious sedation of infants and children. Chloral (Clo) spontaneously condenses with the biogenic amine tryptamine (Ta) giving rise to the endogenous formation of
Induction of neurofibrillary degeneration following treatment with maytansine in vivo.
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The effects of maytansine (MYT), a naturally occurring ansa macrolide and potent antimitotic drug that binds to tubulin, were studied by light and electron microscopy in the central nervous system of rabbits. Respectively, 17 and 5 animals were sacrified at various time intervals following a single
Potential mechanisms of tremor tolerance induced in rats by the repeated administration of total alkaloid extracts from the seeds of Peganum harmala Linn
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Ethnopharmacological relevance: The seeds of Peganum harmala Linn have been widely used for the treatment of nervous, cardiovascular, gastrointestinal, respiratory, and endocrine diseases and many other human ailments. However, tremor
Reversibility of microtubule inhibitor-induced transganglionic degenerative atrophy of central terminals of primary nociceptive neurons.
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Microtubule inhibitor Vinca alkaloids applied around a peripheral nerve induce transganglionic degenerative atrophy of the central terminals of primary nociceptive neurons. This effect is reversible: 40-50 days later the original histochemical structure of the central terminals is restored.
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