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Página 1 a partir de 54 resultados
Teratogenic effects of Nicotiana glauca and concentration of anabasine, the suspect teratogen in plant parts.
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Nicotiana glauca consumption by pregnant cows or sows produced arthrogryposis and other congenital deformities in their offspring. The plant material administered contained 0.11% anabasine, the suspect teratogen. But concentration varied among various plant parts; woody material was very low but
Fatal poisoning from Nicotiana glauca leaves: identification of anabasine by gas-chromatography/mass spectrometry.
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Death of a worker occurred after ingestion of unknown amounts of Nicotiana glauca G leaves. The leaves were cooked after having been mistakenly considered to be spices of a type which grow in Thailand. After ingestion, two Thai workers collapsed, one with asystolia. Resuscitation efforts were
Teratogenicity in swine of the tobacco alkaloid anabasine isolated from Nicotiana glauca.
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Nicotiana glauca, wild tree tobacco, induces arthrogrypotic congenital defects in piglets similar to those induced by Nicotiana tabacum, common tobacco. The present work was conducted to isolate the principal alkaloid of N. glauca, anabasine, in large quantity and good purity and to test the
Supramolecular Nano-Encapsulation of Anabasine Reduced Its Developmental Toxicity in Zebrafish.
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Anabasine (ANA), a major piperidine alkaloid originally isolated from wild tobacco trees (Nicotiana glauca), has been known to induce serious developmental toxicities such as skeletal deformities in livestock and humans. In this study, we thoroughly investigated the supramolecular
Accidental fatal poisoning by Nicotiana glauca: identification of anabasine by high performance liquid chromatography/photodiode array/mass spectrometry.
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A method, based on reversed phase high performance liquid chromatography (HPLC) was developed for the detection and quantification of anabasine, the toxic alkaloid of Nicotiana glauca, in forensic applications. A standard solid phase extraction (SPE) method was used for the extraction of anabasine
Increased production of cadaverine and anabasine in hairy root cultures of Nicotiana tabacum expressing a bacterial lysine decarboxylase gene.
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Several hairy root cultures of Nicotiana tabacum varieties, carrying two direct repeats of a bacterial lysine decarboxylase (ldc) gene controlled by the cauliflower mosaic virus (CaMV) 35S promoter expressed LDC activity up to 1 pkat/mg protein. Such activity was, for example, sufficient to increase
Congenital defects in calves from maternal ingestion of Nicotiana glauca of high anabasine content.
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Administration of Nicotiana glauca to four cows from the 50th to the 75th days of gestation induced congenital deformities in their calves. All four calves had arthrogryposis of forelimbs and one also had spinal curvature and rib cage deformity. The plant material contained 0.113% of the piperidine
RNAi-mediated down-regulation of ornithine decarboxylase (ODC) impedes wound-stress stimulation of anabasine synthesis in Nicotiana glauca.
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Unlike most Nicotiana species, leaf tissues of the globally significant weed Nicotiana glauca Grah. (Argentinian tree tobacco) contains anabasine as the main component of its alkaloid pool, with concentrations typically increasing several fold in response to wounding of plants. The Δ(1)-piperidinium
Relative toxicities and neuromuscular nicotinic receptor agonistic potencies of anabasine enantiomers and anabaseine.
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Anabasine occurring in wild tree tobacco (Nicotiana glauca) and anabaseine occurring in certain animal venoms are nicotinic receptor agonist toxins. Anabasine lacks the imine double bond of anabaseine; the two possible enantiomers of anabasine occur in N. glauca. A comparision of the relative
Biosynthesis of the nicotine alkaloids in Nicotiana glutinosa. Interrelationships among nicotine, nornicotine, anabasine, and anatabine.
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[Occurrence of anabasine in Nicotiana glauca].
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[Transformation of nicotine into anabasine in Nicotiana glauca shoots].
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Biosynthesis of Anabasine and of Nicotine by Excised Root Cultures of Nicotiana Glauca.
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Comparison of cleft palate induction by Nicotiana glauca in goats and sheep.
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The induction of cleft palate by Nicotiana glauca (wild tree tobacco) during the first trimester of pregnancy was compared between Spanish-type goats and crossbred western-type sheep. Cleft palate was induced in 100% of the embryonic/fetal goats when their pregnant mothers were gavaged with N.
Actions of piperidine alkaloid teratogens at fetal nicotinic acetylcholine receptors.
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Teratogenic alkaloids are found in many species of plants including Conium maculatum L., Nicotiana glauca, Nicotiana tabaccum, and multiple Lupinus spp. Fetal musculoskeletal defects produced by alkaloids from these plants include arthrogyropisis, scoliosis, torticollis, kyposis, lordosis, and cleft
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