Alpha-amanitin, the main toxin of the death cap fungus (Amanita phalloides) is one of the most dangerous natural poison. This toxin damages eukaryotic cells by inhibiting their transcription. Lesions are seen in cells with rapid protein synthesis, particular in liver and renal cells, even at low toxin concentrations. Without adequate intensive therapy, the outcome of alpha-amanitin poisoning is very poor. This article reports various courses of amanitin intoxication in a family. In 3/4 patients, severe hepatic failure developed as assessed by a decrease of all coagulation factors, mainly Quick's test and factor V (< 10%-15%). Despite vigorous replacement of coagulation factors, in 1 of the patients orthotopic liver transplantation had to be performed on day 4, whereas in all other patients liver function improved spontaneously. All patients survived their intoxication. Both the pharmacological basis and clinical manifestations of Amanita intoxication are discussed. On this basis a treatment scheme is presented which the authors believe may be useful to clinicians.
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BMC Gastroenterol
December 2024
Department of Internal Medicine I, Gastroenterology, Hepatology, Endocrinology, Rheumatology, and Infectious Diseases, University Hospital Regensburg, Franz-Josef-Strauß-Allee 11, 93053, Regensburg, Germany.
Background: Mushrooms, an integral component of human diets, range from esteemed delicacies to potentially lethal toxins. The risk of severe poisoning from misidentified species, poses a significant challenge. For clinicians, recognizing mushroom poisoning amidst nonspecific symptoms and determining the specific mushroom ingested are critical yet complex tasks.
View Article and Find Full Text PDFInt J Mol Sci
December 2024
Department of Gastroenterology and Hepatology Campbelltown Hospital, Campbelltown, NSW 2560, Australia.
is well-established as one of the most poisonous mushrooms; toxicity from ingestion was reported as early as the first century. Although native to Europe, this ectomycorrhizal fungus has been widely spread and is responsible for liver toxicity in many parts of the world. Toxicity is characterized by delayed gastrointestinal symptoms mimicking acute gastroenteritis followed by severe hepatotoxicity and liver failure with consequent multi-organ failure.
View Article and Find Full Text PDFToxicon
November 2024
Department of Botany, Mizoram University, Tanhril, Aizawl, Mizoram, 796004, India. Electronic address:
Food Chem Toxicol
November 2024
Atatürk University, Faculty of Pharmacy, Department of Biochemistry, Erzurum, Turkiye.
Alpha-amanitin (α-AMA), a toxic component of Amanita phalloides, causes severe hepato- and nephrotoxicity. This study investigated the protective effects of βeta-carotene (βC) against α-AMA-induced kidney damage in rats. Thirty-two male Sprague-Dawley rats were divided into four groups: Control, βC (50 mg/kg/day), α-AMA (3 mg/kg), and βC+α-AMA.
View Article and Find Full Text PDFHeliyon
September 2024
Department of Emergency Medicine, Hunan Provincial People's Hospital (The First Affiliated Hospital of Hunan Normal University), Changsha, Hunan, 410005, PR China.
Amanita phalloides poisoning, renowned for its high mortality rates, is one of the most serious food safety issue in certain regions worldwide. Assessment of prognosis and development of more efficacious therapeutic strategies are critical importance for amanita phalloides poisoning patients. The aim of the study is to establish a nomogram to predict the clinical outcome of amanita phalloides poisoning patients based on the independent risk factor for prognosis.
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