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Strana 1 z 19 Výsledek
Pharmacological evaluation of ricinine, a central nervous system stimulant isolated from Ricinus communis.
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Přihlášení Registrace
The extract of the pericarp of castor bean (Ricinus communis) showed some typical central nervous system stimulant effects when administered to mice. The animals became exophthalmic, presented tremors and clonic seizures and died a few minutes after receiving larger doses of the extract. At lower
Quantification of ricinine in rat and human urine: a biomarker for ricin exposure.
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Přihlášení Registrace
Ricin is a toxalbumin derived from the castor bean plant, Ricinus communis. Ricinine is an alkaloid (3-cyano-4-methoxy-N-methyl-2-pyridone) that shares a common plant source with ricin, and its presence in urine infers ricin exposure. A new quantification method for ricinine was developed that uses
Evaluation of ricinine, a ricin biomarker, from a non-lethal castor bean ingestion.
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Přihlášení Registrace
A case is presented of the attempted suicide of a 58-year-old man using castor beans. The patient came to the emergency room complaining of nausea, vomiting and diarrhea for nine hours following the ingestion of six castor beans. Urine samples were taken throughout the hospital stay and submitted to
Lethal Injection of a Castor Bean Extract: Ricinine Quantification as a Marker for Ricin Exposure Using a Validated LC-MS/MS Method.
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Přihlášení Registrace
Ricin is a highly toxic agent derived from the castor bean plant (Ricinus communis). Poisoning occurs commonly by oral ingestion of the beans. Injection of ricin is believed to be more lethal. Ricin is a large glycosylated protein difficult to detect in clinical samples. Instead, ricinine, a small
Forensic determination of ricin and the alkaloid marker ricinine from castor bean extracts.
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Přihlášení Registrace
Liquid chromatography/mass spectrometry (LC/ MS) and matrix assisted laser desorption/ionization time-of-flight (MALDI-TOF) MS methods were developed for the presumptive identification of ricin toxin and the alkaloid marker ricinine from crude plant materials. Ricin is an extremely potent poison,
Translocation and Metabolism of Ricinine in the Castor Bean Plant, Ricinus communis L.
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Přihlášení Registrace
Ricinine-3,5-(14)C (N-methyl-3-cyano-4-methoxy-2-pyridone) administered to senescent leaves of Ricinus communis L. was translocated to all other tissues of the plant. Developing fruit and especially seeds were found to be labeled the most rapidly. Young growing leaves and other developing tissues of
Non-Lethal Intoxication by Ingestion of 50 Castor Beans: Serial Measurement of Ricinine in Blood, Plasma, and Urine
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Přihlášení Registrace
A 30-year-old woman presented to the emergency department 2 days after ingestion of 50 castor beans. Her symptoms on admission were vomiting, diarrhea, abdominal cramps, agitation and anxiety. Initial laboratory tests showed a slightly elevated C-reactive protein (CRP) and mild liver and kidney
Fatal ricin toxicosis in a puppy confirmed by liquid chromatography/mass spectrometry when using ricinine as a marker.
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Přihlášení Registrace
Ricin, a lectin from the castor bean plant (Ricinis communis), is considered one of the most potent plant toxins. Ingestion of masticated seeds results in high morbidity, with vomiting and watery to hemorrhagic diarrhea. The prognosis varies with the number of seeds ingested, the degree of
Analysis of a ricin biomarker, ricinine, in 989 individual human urine samples.
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Přihlášení Registrace
Ricinine (3-cyano-4-methoxy-N-methyl-2-pyridone) is a urinary biomarker that can be measured to confirm human exposure to castor bean products such as ricin. Because many consumer products contain castor oil, another castor bean product, ricinine may be detectable in the general population. The
Serial ricinine levels in serum and urine after ricin intoxication.
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Přihlášení Registrace
Ricinine is an alkaloid present in the castor bean plant (Ricinus communis) that can be used as a biomarker for ricin poisoning. Serial ricinine levels are reported in the serum and urine of a patient suffering from intentional ricin intoxication. The patient was brought to the hospital 4 h after
Activation of the de novo pathway for pyridine nucleotide biosynthesis prior to ricinine biosynthesis in castor beans.
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Přihlášení Registrace
The ricinine content of etiolated seedlings of Ricinus communis increased nearly 12-fold over a 4-day period. In plants quinolinic acid is an intermediate in the de novo pathway for the synthesis of pyridine nucleotides. The only known enzyme in the de novo pathway for pyridine nucleotide
Quantification of Ricinine and Abrine in Human Plasma by HPLC-MS-MS: Biomarkers of Exposure to Ricin and Abrin.
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Přihlášení Registrace
Ricin and abrin are toxic ribosome-inactivating proteins found in plants. Exposure to these toxins can be detected using the biomarkers ricinine and abrine, which are present in the same plant sources as the toxins. The concentration of the biomarkers in urine and blood will be dependent upon the
Ricin Poisoning after Oral Ingestion of Castor Beans: A Case Report and Review of the Literature and Laboratory Testing.
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Přihlášení Registrace
BACKGROUND
Ricin is a protein toxin derived from the castor bean plant Ricinus communis. Several cases secondary to its consumption have been published and, more recently, its use as a potential bioterrorism agent has also been reported. Oral absorption of ricin is highly erratic, leading to a wide
Fatal intoxication by intravenous injection of castor bean (Ricinus communis L.) extract-a case study
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Přihlášení Registrace
A case report of a 25-year-old man who committed suicide by intravenous injection himself of an aqueous home-made castor bean extract is presented. The patient was hospitalized and treated symptomatically and was released at its own request fourth day after intoxication. The next day, the patient's
Near-fatal poisoning after ricin injection
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Přihlášení Registrace
Objective: To report a near-fatal poisoning after intentional injection of ricin from a castor bean (Ricinus communis) extract.Case report: A 21 year-old man self-injected ∼3 mL of a castor bean extract intramuscularly and subcutaneously in the left antecubital fossa. Upon
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