keyword
MENU ▼
Read by QxMD icon Read
search

Amanita

keyword
https://www.readbyqxmd.com/read/29784414/source-attribution-profiling-of-five-species-of-amanita-mushrooms-from-four-european-countries-by-high-resolution-liquid-chromatography-mass-spectrometry-combined-with-multivariate-statistical-analysis-and-dna-barcoding
#1
Daniel Jansson, Arthur Wolterink, Leonie Bergwerff, Patrick Hough, Kris Geukens, Crister Åstot
Source attribution profiling of five species of Amanita mushrooms from four European countries was performed using Liquid Chromatography-High Resolution Mass Spectrometry (LC-HRMS) combined with multivariate statistical analysis. Initially, species determination was carried out morphologically and was verified by DNA-analysis. This data was then combined with chemical profiling, generated from LC-HRMS full scan analysis. The untargeted data was processed and the 720 most abundant peaks in the LC-HRMS chromatogram were used to build a multivariate PLS-DA model...
August 15, 2018: Talanta
https://www.readbyqxmd.com/read/29746791/preferential-accumulation-of-inorganic-elements-in-amanita-muscaria-from-north-eastern-poland
#2
Krzysztof Lipka, Martyna Saba, Jerzy Falandysz
Concentrations of Al, Ba, Cd, Ca, Co, Cu, Fe, K, Mg, Mn, Hg, Rb, Ag, Na, Sr and Zn were analysed in fruiting bodies of A. muscaria. This mushroom is considered conditionally edible, since parboiling can detoxify its fruiting bodies from the hallucinogens and render it edible. The specific purpose of the research is the little-known phenomenon of the variability of mineral composition of mushrooms for generations harvested in the same forest areas - both in terms of their nutritional value and anthropogenic influences...
May 10, 2018: Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering
https://www.readbyqxmd.com/read/29741535/amanita-muscaria-fly-agaric-from-a-shamanistic-hallucinogen-to-the-search-for-acetylcholine
#3
M R Lee, E Dukan, I Milne
The mushroom Amanita muscaria (fly agaric) is widely distributed throughout continental Europe and the UK. Its common name suggests that it had been used to kill flies, until superseded by arsenic. The bioactive compounds occurring in the mushroom remained a mystery for long periods of time, but eventually four hallucinogens were isolated from the fungus: muscarine, muscimol, muscazone and ibotenic acid. The shamans of Eastern Siberia used the mushroom as an inebriant and a hallucinogen. In 1912, Henry Dale suggested that muscarine (or a closely related substance) was the transmitter at the parasympathetic nerve endings, where it would produce lacrimation, salivation, sweating, bronchoconstriction and increased intestinal motility...
March 2018: Journal of the Royal College of Physicians of Edinburgh
https://www.readbyqxmd.com/read/29740406/two-p-1b-1-atpases-of-amanita-strobiliformis-with-distinct-properties-in-cu-ag-transport
#4
Vojtěch Beneš, Tereza Leonhardt, Jan Sácký, Pavel Kotrba
As we have shown previously, the Cu and Ag concentrations in the sporocarps of Ag-hyperaccumulating Amanita strobiliformis are correlated, and both metals share the same uptake system and are sequestered by the same metallothioneins intracellularly. To further improve our knowledge of the Cu and Ag handling in A. strobiliformis cells, we searched its transcriptome for the P1B-1 -ATPases, recognizing Cu+ and Ag+ for transport. We identified transcripts encoding 1097-amino acid (AA) AsCRD1 and 978-AA AsCCC2, which were further subjected to functional studies in metal sensitive Saccharomyces cerevisiae ...
2018: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29724247/sociodemographic-differences-in-the-cultural-significance-of-edible-and-toxic-mushrooms-among-tsotsil-towns-in-the-highlands-of-chiapas-mexico
#5
Felipe Ruan-Soto
BACKGROUND: Mushrooms are important forest resources, mostly as food, despite the serious health threat posed by toxic species. In the Highlands of Chiapas, numerous wild mushroom intoxications have been registered. While Chiapas has been vastly studied from an ethnomycological perspective, no certainty exists as to how nomenclature systems differentiate edible and toxic species, which species are most culturally significant, and whether sociodemographic factors relate to how well-known they are in the Highlands of Chiapas...
May 3, 2018: Journal of Ethnobiology and Ethnomedicine
https://www.readbyqxmd.com/read/29690326/a-large-marine-caribbean-mushroom-field-description-of-eudistoma-amanitum-sp-nov-ascidiacea-polycitoridae
#6
Sandra Vieira Paiva, Rosana Moreira Da Rocha
Numerous colonies of Eudistoma amanitum sp. nov. have been collected in Caribbean waters. The colonies resemble the groups of mushrooms from the Amanita genus and there are different color morphs. The discussion includes comparison with other species with similar shape.
March 21, 2018: Zootaxa
https://www.readbyqxmd.com/read/29674537/near-complete-genome-sequence-of-pseudomonas-palleroniana-mab3-a-beneficial-1-aminocyclopropane-1-carboxylate-deaminase-producing-bacterium-able-to-promote-the-growth-of-mushrooms-and-plants
#7
Paola Urón, Admir J Giachini, Bernard R Glick, Márcio J Rossi, Francisco X Nascimento
The near-complete genome sequence of Pseudomonas palleroniana MAB3, a 1-aminocyclopropane-1-carboxylate deaminase-producing bacterium isolated from an environmental soil Amanita mushroom, is presented here. The genome of P. palleroniana MAB3 contains a single circular chromosome of 6.29 Mb and an average GC content of 60.5%.
April 19, 2018: Genome Announcements
https://www.readbyqxmd.com/read/29627659/management-of-amanita-phalloides-poisoning-a-literature-review-and-update
#8
REVIEW
Yongzhuang Ye, Zhenning Liu
Amanita phalloides poisoning with a high mortality is a serious health problem in the world. The typical clinical manifestations are usually characterized by the absence of any symptoms followed by severe gastrointestinal disorders and acute liver failure. Inhibition of RNA polymeraseII (RNAP II) activity, apoptosis, and oxidative stress are considered as the major mechanism of amatoxins intoxication. The current treatment measures mainly include prevention of amatoxins absorption, elimination of absorbed amatoxins, potential antidotes therapy, and liver transplantation...
March 28, 2018: Journal of Critical Care
https://www.readbyqxmd.com/read/29627524/molecular-cloning-and-the-expression-pattern-of-aepopb-involved-in-the-%C3%AE-amanitin-biosynthesis-in-amanita-exitialis-fruiting-bodies
#9
Cheng-Hua Zhang, Jun-Ping Zou, Wang-Qiu Deng, Tai-Hui Li, Zi-de Jiang
Amanita exitialis Zhu L. Yang & T. H. Li is the species responsible for the largest number of mushroom-associated human poisonings and fatalities in South China due to its lethal cyclic peptide toxins. Prolyl oligopeptidase B (POPB) is considered a key enzyme in the production of the highly toxic cyclic peptide α-amanitin. However, the POPB gene of A. exitialis has not been studied. In the present study we cloned and sequenced the full-length A. exitialis POPB (AePOPB) gene. The aim was to verify the gene structure and functions of AePOPB...
April 5, 2018: Gene
https://www.readbyqxmd.com/read/29623092/a-data-mining-approach-to-improve-inorganic-characterization-of-amanita-ponderosa-mushrooms
#10
Cátia Salvador, M Rosário Martins, Henrique Vicente, A Teresa Caldeira
Amanita ponderosa are wild edible mushrooms that grow in some microclimates of Iberian Peninsula. Gastronomically this species is very relevant, due to not only the traditional consumption by the rural populations but also its commercial value in gourmet markets. Mineral characterisation of edible mushrooms is extremely important for certification and commercialization processes. In this study, we evaluate the inorganic composition of Amanita ponderosa fruiting bodies (Ca, K, Mg, Na, P, Ag, Al, Ba, Cd, Cr, Cu, Fe, Mn, Pb, and Zn) and their respective soil substrates from 24 different sampling sites of the southwest Iberian Peninsula (e...
2018: International Journal of Analytical Chemistry
https://www.readbyqxmd.com/read/29617324/betalains-in-some-species-of-the-amaranthaceae-family-a-review
#11
REVIEW
Maria Graça Miguel
Natural pigments are largely distributed in the plant kingdom. They belong to diverse groups, with distinct biochemical pathways. Betalains with colours that range from yellow to red-violet can de divided into two main subgroups: betaxanthins and betacyanins. These types of pigments are confined into 13 families of the order Caryophyllales and in some genera of higher fungi ( Amanita muscaria , Hygrocybe and Hygrophorus ). The Amaranthaceae family includes diverse genera in which betalains are present: Alternanthera , Amaranthus , Beta , Chenopodium , Celosia and Gomphrena ...
April 4, 2018: Antioxidants (Basel, Switzerland)
https://www.readbyqxmd.com/read/29561592/synthesis-of-the-death-cap-mushroom-toxin-%C3%AE-amanitin
#12
Kaveh Matinkhoo, Alla Pryyma, Mihajlo Todorovic, Brian O Patrick, David M Perrin
α-Amanitin is an extremely toxic bicyclic octapeptide isolated from the death-cap mushroom, Amanita phalloides. As a potent inhibitor of RNA polymerase II, α-amanitin is toxic to eukaryotic cells. Recent interest in α-amanitin arises from its promise as a payload for antibody-drug conjugates. For over 60 years, A. phalloides has been the only source of α-amanitin. Here we report a synthesis of α-amanitin, which surmounts the key challenges for installing the 6-hydroxy-tryptathionine sulfoxide bridge, enantioselective synthesis of (2 S,3 R,4 R)-4,5-dihydroxy-isoleucine, and diastereoselective sulfoxidation...
March 21, 2018: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/29487528/toxicity-assessment-of-wild-mushrooms-from-the-western-ghats-india-an-in-vitro-and-sub-acute-in-vivo-study
#13
S Sai Latha, S Naveen, C K Pradeep, C Sivaraj, M G Dinesh, K R Anilakumar
Background: Poisoning by different kinds of toxic mushrooms is unfortunately becoming an increasingly important medical problem, evident from the growing number of reports worldwide since the 1950s. Mycetism being a health concern, deserves scientific attention. In this perspective, the present study aims to assess the potential effects of ingesting the selected wild mushrooms from regions of the Western Ghats, India. Methods: The preliminary cytotoxicity of the selected mushrooms was studied in vitro on the intestinal NCM460 and the Chang's liver cell lines on the basis of cell viability...
2018: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/29471607/mushroom-poisoning-by-macrolepiota-neomastoidea
#14
So Yeon Kim, Yang Hyun Baek, Sang Young Han, Sung Wook Lee, Young Hoon Roh, Kwan Woo Kim, Sung Hwa Kang, Jin Sook Jeong
There are currently over 5,000-known species of mushrooms worldwide. Only 20-25% of mushrooms have been named, and 3% of these are poisonous. More than 95% of mushroom poisoning cases occur due to difficulties associated with the identification of mushroom species. Most of the fatal mushroom poisoning cases recorded to date have been related to the Amanita species. Until now, a case of fatal poisoning caused by Macrolepiota neomastoidea ( M. neomastoidea ) has not been reported in Asia. A 57-year-old male patient was admitted to the emergency room with nausea, vomiting, diarrhea, and abdominal pain...
February 25, 2018: Korean Journal of Gastroenterology, Taehan Sohwagi Hakhoe Chi
https://www.readbyqxmd.com/read/29407307/acute-liver-failure-due-to-amanita-phalloides-poisoning-therapeutic-approach-and-outcome
#15
E Kieslichova, S Frankova, M Protus, D Merta, E Uchytilova, J Fronek, J Sperl
INTRODUCTION: Amanita phalloides poisoning is a potentially fatal cause of acute liver failure. The aim of this study was to analyze the impact of initial patients' characteristics and different treatment modalities on the outcome of patients with liver failure caused by Amanita poisoning. MATERIAL AND METHODS: We retrospectively evaluated 23 patients admitted to our center between July 2007 and August 2016. RESULTS: Mean time interval between Amanita phalloides ingestion and the onset of gastrointestinal symptoms was 12...
January 2018: Transplantation Proceedings
https://www.readbyqxmd.com/read/29373991/ethnomycological-knowledge-in-three-communities-in-amealco-qu%C3%A3-retaro-m%C3%A3-xico
#16
Daniel Robles-García, Humberto Suzán-Azpiri, Adriana Montoya-Esquivel, Jesús García-Jiménez, Edgardo Ulises Esquivel-Naranjo, Elhadi Yahia, Fidel Landeros-Jaime
BACKGROUND: Fungi have multiple uses in temperate areas of México, but an important decrease in the traditional knowledge of uses and customs of mushrooms becomes a fundamental issue for fungi conservation. However, only few studies quantify the traditional ethnomycological knowledge in México, and this study is the first quantitative report for Querétaro, a central state with both Otomí and Mestizo communities and a high fungi diversity. METHODS: The present study was conducted registering traditional knowledge on the use and consumption of mushrooms in three Hñähñu (Otomí) communities (Tesquedó, Xajay, and Tenasdá) in Amealco de Bonfil, Querétaro, México, between August 2013 and November 2014...
January 26, 2018: Journal of Ethnobiology and Ethnomedicine
https://www.readbyqxmd.com/read/29341897/toxicity-and-toxicokinetics-of-amanita-exitialis-in-beagle-dogs
#17
Jian Sun, Yu-Min Niu, Yu-Tao Zhang, Hai-Jiao Li, Yu Yin, Yi-Zhe Zhang, Pei-Bin Ma, Jing Zhou, Lie Huang, Hong-Shun Zhang, Cheng-Ye Sun
In this study, the toxicology of A. exitialis, a lethal mushroom found in China, and the toxicokinetics of peptide toxins contained in it were evaluated. Beagles were fed A. exitialis powder (20 or 60 mg/kg) in starch capsules, after which they were assessed for signs of toxicity, as well as biochemical and pathological changes. Ultra-performance liquid chromatography-electrospray ionization-tandem mass spectrometry was used to assay the peptide toxins. The total peptide toxins in A. exitialis was 3482.6 ± 124...
January 13, 2018: Toxicon: Official Journal of the International Society on Toxinology
https://www.readbyqxmd.com/read/29325729/amatoxin-containing-mushroom-poisonings-species-toxidromes-treatments-and-outcomes
#18
REVIEW
James H Diaz
Amatoxins are produced primarily by 3 species of mushrooms: Amanita, Lepiota, and Galerina. Because amatoxin poisonings are increasing, the objective of this review was to identify all amatoxin-containing mushroom species, present a toxidromic approach to earlier diagnoses, and compare the efficacies and outcomes of therapies. To meet these objectives, Internet search engines were queried with keywords to select peer-reviewed scientific articles on amatoxin-containing mushroom poisoning and management. Descriptive epidemiological analyses have documented that most mushroom poisonings are caused by unknown mushrooms, and most fatal mushroom poisonings are caused by amatoxin-containing mushrooms...
March 2018: Wilderness & Environmental Medicine
https://www.readbyqxmd.com/read/29295625/anti-hydroxyl-radical-activity-redox-potential-and-anti-ache-activity-of-amanita-strobiliformis-polysaccharide-extract
#19
Maja Karaman, Ljiljana Janjušević, Dragica Jakovljević, Filip Šibul, Boris Pejin
This study outlines antioxidant and anti-AChE activities of the polysaccharide (PSH) extract from the mushroom species Amanita strobiliformis. Both the presence of α and ß glucans within the aforementioned extract was recorded. PSH extract displayed a profound scavenging activity of OH radicals (IC50 value, 11.86 ± 0.59 μg/mL) and high potential for reduction of Fe3+ ions (174.11 ± 8.70 mg eq. AA/g d.w.) being almost 48- and 5-fold more effective than mannitol and butylated hydroxytoluene used as a positive control, respectively...
January 2, 2018: Natural Product Research
https://www.readbyqxmd.com/read/29285878/a-comparison-of-the-effectiveness-of-silibinin-and-resveratrol-in-preventing-alpha-amanitin-induced-hepatotoxicity
#20
Aynur Sahin, Mualla Aylin Arici, Yeliz Yilmaz, Sule Kalkan, Nergiz Durmus, Bekir Ugur Ergur, Ilkay Yakut Aksu, Neşe Atabey, Yesim Tuncok
Amanita phalloides species mushrooms containing alpha-amanitin (α-AMA) are responsible for the majority of fatal mushroom intoxications and can lead to severe poisonings resulting in hepatotoxicity and acute hepatic failure. Existing antidotes, such as silibinin, are not sufficiently effective in the prevention and/or resolution of α-AMA-induced hepatotoxicity. We investigated the effects of resveratrol on α-AMA-induced hepatotoxicity and compared with silibinin, a known antidote using in vivo and in vitro toxicity models...
December 29, 2017: Basic & Clinical Pharmacology & Toxicology
keyword
keyword
70291
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"