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https://www.readbyqxmd.com/read/29471607/mushroom-poisoning-by-macrolepiota-neomastoidea
#1
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/29471500/molecular-identification-of-leishmania-spp-in-sand-flies-diptera-psychodidae-phlebotominae-in-the-len%C3%A3-%C3%A3-is-maranhenses-national-park-brazil
#2
Adalberto Alves Pereira-Filho, Raquel Silva Fonteles, Maria da Conceição Abreu Bandeira, Jorge Luiz Pinto Moraes, José Manuel Macário Rebêlo, Maria Norma Melo
Sand flies are very common in the region of Lençóis Maranhenses National Park, an important tourist attraction in Brazil. However, the role of some species and their relative importance locally in Leishmania Ross 1903 transmission is unclear. The objective of this study was to identify Leishmania infection in phlebotomine sand flies collected around the Lençóis Maranhenses National Park, an important conservation area and popular international/national tourist destination with a high incidence of leishmaniasis...
February 20, 2018: Journal of Medical Entomology
https://www.readbyqxmd.com/read/29471488/morphological-responses-of-plant-roots-to-mechanical-stress
#3
Izabela Potocka, Joanna Szymanowska-Pulka
Background: Roots are continuously exposed to mechanical pressure and this often results in their morphological modification. Most obvious are changes in the overall form of the root system as well as in the shapes of particular roots. These changes are often accompanied by modifications of the cell pattern and cell morphology. Scope: This review focuses on the morphological responses of roots to mechanical stress. Results of early and recent experiments in which roots have been exposed to mechanical pressure are assembled, analysed and discussed...
February 17, 2018: Annals of Botany
https://www.readbyqxmd.com/read/29471487/the-lesser-antillean-iguana-iguana-delicatissima-on-st-eustatius-genetically-depauperate-and-threatened-by-ongoing-hybridization
#4
Matthijs P van den Burg, Patrick G Meirmans, Tim van Wagensveld, Bart Kluskens, Hannah Madden, Mark E Welch, Johannes A J Breeuwer
The Lesser Antillean Iguana (Iguana delicatissima) is an endangered species threatened by habitat loss and hybridization with non-native Green Iguanas (Iguana iguana). Iguanadelicatissima has been extirpated on several islands, and the Green Iguana has invaded most islands with extant populations. Information is essential to protect this species from extinction. We collected data on 293 iguanas including 17 juveniles from St. Eustasius, one of the few remaining I. delicatissima strongholds. Genetic data was leveraged to test for hybridization presence with the Green Iguana using both mitochondrial and nuclear genes, including 16 microsatellite loci...
February 19, 2018: Journal of Heredity
https://www.readbyqxmd.com/read/29471482/discovery-of-haemaphysalis-longicornis-ixodida-ixodidae-parasitizing-a-sheep-in-new-jersey-united-states
#5
Tadhgh Rainey, James L Occi, Richard G Robbins, Andrea Egizi
We report the discovery of large numbers of Haemaphysalis longicornis Neumann (Ixodida: Ixodidae) infesting a sheep in Hunterdon County, New Jersey, United States. All life stages were found on the sheep, which had no history of travel outside the country. H. longicornis is native to East Asia, and there are invasive populations in Australia, New Zealand and several Pacific islands, where this tick is a major livestock pest. It is currently unknown whether the New Jersey collections represent a limited or established population, but because this species could present a significant threat to human and animal health in the United States, vigilance is encouraged...
February 19, 2018: Journal of Medical Entomology
https://www.readbyqxmd.com/read/29471473/bidirectional-gpr119-agonism-requires-peptide-yy-and-glucose-for-activity-in-mouse-and-human-colon-mucosa
#6
Iain R Tough, Sarah Forbes, Herbert Herzog, Robert M Jones, Thue W Schwartz, Helen M Cox
The lipid sensor GPR119 is highly expressed by enteroendocrine L-cells and pancreatic β-cells that release the hormones, PYY and GLP-1, and insulin, respectively. Endogenous oleoylethanolamide (OEA) and the dietary metabolite, 2-monoacylglycerol (2-OG) can each activate GPR119. Here we compared mucosal responses to selective, synthetic GPR119 agonists (AR440006, AR231453) and the lipids, OEA, 2-OG and N-oleoyldopamine (OLDA) monitoring epithelial ion transport as a read-out for L-cell activity in native mouse and human gastrointestinal (GI) mucosae...
February 19, 2018: Endocrinology
https://www.readbyqxmd.com/read/29471451/genomic-evidence-of-widespread-admixture-from-polar-bears-into-brown-bears-during-the-last-ice-age
#7
James A Cahill, Peter D Heintzman, Kelley Harris, Matthew D Teasdale, Joshua Kapp, André E Rodrigues Soares, Ian Stirling, Daniel Bradley, Ceiridwen J Edwards, Kiley Graim, Aliaksandr A Kisleika, Alexander V Malev, Nigel Monaghan, Richard E Green, Beth Shapiro
Recent genomic analyses have provided substantial evidence for past periods of gene flow from polar bears (Ursus maritimus) into Alaskan brown bears (Ursus arctos), with some analyses suggesting a link between climate change and genomic introgression. However, because it has mainly been possible to sample bears from the present day, the timing, frequency, and evolutionary significance of this admixture remains unknown. Here, we analyze genomic DNA from three additional and geographically distinct brown bear populations, including two that lived temporally close to the peak of the last ice age...
February 20, 2018: Molecular Biology and Evolution
https://www.readbyqxmd.com/read/29471445/does-soil-treated-with-conidial-formulations-of-trichoderma-spp-attract-or-repel-subterranean-termites
#8
Hongpeng Xiong, Kena Xue, Wenquan Qin, Xuan Chen, Huifang Wang, Xianhui Shi, Tao Ma, Zhaohui Sun, Weiguang Chen, Xueqin Tian, Wei Lin, Xiujun Wen, Cai Wang
Previous studies showed that many wood-rotting fungi were attractive to termites; however, little attention has been paid to the relationship between termites and soil fungus. In the present study, different designs of two-choice tests were conducted to investigate the behaviors of two subterranean termites, Coptotermes formosanus Shiraki (wood-feeding lower termites) and Odontotermes formosanus (Shiraki) (fungus-growing higher termites), in response to soil (or sand) treated with the commercial conidial formulations of Trichoderma harzianum Rifai (BioWorks) and Trichoderma viride Pers...
February 17, 2018: Journal of Economic Entomology
https://www.readbyqxmd.com/read/29471372/a-multistate-outbreak-of-human-salmonella-agona-infections-associated-with-consumption-of-fresh-whole-papayas-imported-from-mexico-united-states-2011
#9
Adamma Mba-Jonas, Wright Culpepper, Thomas Hill, Venessa Cantu, Julie Loera, Julie Borders, Lori Saathoff-Huber, Johnson Nsubuga, Ingrid Zambrana, Shannon Dalton, Ian Williams, Karen P Neil
Background: Nontyphoidal Salmonella causes ~1 million food-borne infections annually in the United States. We began investigating a multistate outbreak of Salmonella serotype Agona infections in April 2011. Methods: A case was defined as infection with the outbreak strain of Salmonella Agona occurring between 1 January and 25 August 2011. We developed hypotheses through iterative interviews. Product distribution analyses and traceback investigations were conducted...
February 19, 2018: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/29471370/competitive-ability-of-capsella-species-with-different-mating-systems-and-ploidy-levels
#10
Sandra Petrone Mendoza, Martin Lascoux, Sylvain Glémin
Background and Aims: Capsella is a model genus for studying the transition from outcrossing to selfing, with or without change in ploidy levels. The genomic consequences and changes in reproductive traits (selfing syndrome) associated with these shifts have been studied in depth. However, potential ecological divergence among species of the genus has not been determined. Among ecological traits, competitive ability could be relevant for selfing evolution, as selfing has been shown to be statistically associated with reduced competitiveness in a recent meta-analysis...
February 17, 2018: Annals of Botany
https://www.readbyqxmd.com/read/29471367/evolution-of-genes-associated-with-gynoecium-patterning-and-fruit-development-in-solanaceae
#11
Clara Inés Ortiz-Ramírez, Sayonara Plata-Arboleda, Natalia Pabón-Mora
Background and Aims: The genetic basis of fruit development has been extensively studied in Arabidopsis, where major transcription factors controlling valve identity (i.e. FRUITFULL), replum development (i.e. REPLUMLESS) and the differentiation of the dehiscence zones (i.e. SHATTERPROOF, INDEHISCENT and ALCATRAZ) have been identified. This gene regulatory network in other flowering plants is influenced by duplication events during angiosperm diversification. Here we aim to characterize candidate fruit development genes in the Solanaceae and compare them with those of Brassicaceae...
February 17, 2018: Annals of Botany
https://www.readbyqxmd.com/read/29471320/cover-crop-species-and-management-influence-predatory-arthropods-and-predation-in-an-organically-managed-reduced-tillage-cropping-system
#12
Ariel N Rivers, Christina A Mullen, Mary E Barbercheck
Agricultural practices affect arthropod communities and, therefore, have the potential to influence the activities of arthropods. We evaluated the effect of cover crop species and termination timing on the activity of ground-dwelling predatory arthropods in a corn-soybean-wheat rotation in transition to organic production in Pennsylvania, United States. We compared two cover crop treatments: 1) hairy vetch (Vicia villosa Roth) planted together with triticale (×Triticosecale Wittmack) after wheat harvest, and 2) cereal rye (Secale cereale Linnaeus) planted after corn harvest...
January 29, 2018: Environmental Entomology
https://www.readbyqxmd.com/read/29471268/clydonella-sawyeri-n-sp-amoebozoa-vannellida-morphological-and-molecular-study-and-a-re-definition-of-the-genus-clydonella-sawyer-1975
#13
Alexander Kudryavtsev, Ekaterina Volkova
We isolated and described a brackish-water amoeba, Clydonella sawyeri n. sp. (Amoebozoa, Vannellida), from the littoral habitat in Kandalaksha Bay (The White Sea, northwestern Russia). Morphology of this amoeba corresponds to the initially proposed diagnosis of the genus Clydonella Sawyer, 1975, although it is sufficiently different from other described species of this genus to warrant a distinct species designation. Phylogenetic analysis based on the small-subunit rRNA gene shows that this species is closely related to the two previously studied ATCC strains identified as Clydonella sp...
February 6, 2018: European Journal of Protistology
https://www.readbyqxmd.com/read/29471244/two-sesquiterpene-aminoquinones-protect-against-oxidative-injury-in-hacat-keratinocytes-via-activation-of-ampk%C3%AE-erk-nrf2-are-ho-1-signaling
#14
Li Liu, Wei Wu, Jing Li, Wei-Hua Jiao, Li-Yun Liu, Jie Tang, Lei Liu, Fan Sun, Bing-Nan Han, Hou-Wen Lin
AIMS: To investigate the cytoprotective effects of two sesquiterpene aminoquinones isolated from the marine sponge Dysidea fragilis, Dysidaminone H (DA8) and 3'-methylamino-avarone (DA14), we examined their effects against hydrogen peroxide (H2 O2 )-induced oxidative injury in human keratinocyte cell line and elucidated the underlying mechanisms. MAIN METHODS: Cell viability was detected using a CCK-8 assay kit. Intracellular reactive oxygen species (ROS) production was measured by fluorescence of 2, 7-Dichlorodi-hydrofluorescein diacetate (DCFH-DA)...
February 19, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29471215/genetic-approaches-to-access-cell-types-in-mammalian-nervous-systems
#15
REVIEW
Miao He, Z Josh Huang
Understanding brain circuit organization and function requires systematic dissection of its cellular components. With vast cell number and diversity, mammalian nervous systems present a daunting challenge for achieving specific and comprehensive cell type access-prerequisite to circuit analysis. Genetic approaches in the mouse have relied on germline engineering to access marker-defined cell populations. Combinatorial strategies that engage marker intersection, anatomy and projection pattern (e.g. antero-grade and retro-grade viral vectors), and developmental lineage substantially increase the specificity of cell type targeting...
February 19, 2018: Current Opinion in Neurobiology
https://www.readbyqxmd.com/read/29471123/gold-iii-bis-thiosemicarbazonate-compounds-in-breast-cancer-cells-cytotoxicity-and-thioredoxin-reductase-targeting
#16
Vanessa Rodríguez-Fanjul, Elena López-Torres, M Antonia Mendiola, Ana María Pizarro
Gold(III) compounds have received increasing attention in cancer research. Three gold complexes of general formula [AuIII L]Cl, where L is benzil bis(thiosemicarbazonate), compound 1, benzil bis(4-methyl-3-thiosemicarbazonate), compound 2, or benzil bis(4-cyclohexyl-3-thiosemicarbazonate), compound 3, have been synthesized and fully characterized, including the X-ray crystal structure of compound 3, confirming square-planar geometry around the gold(III) centre. Compound 1 showed moderate cytotoxicity and accumulation in MCF7 breast cancer cells but did not inhibit thioredoxin reductase (TrxR) activity and did not induce reactive oxygen species (ROS) production...
February 10, 2018: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29471108/redox-stress-in-marfan-syndrome-dissecting-the-role-of-the-nadph-oxidase-nox4-in-aortic-aneurysm
#17
Francesc Jiménez-Altayó, Thayna Meirelles, Eva Crosas-Molist, M Alba Sorolla, Darya Gorbenko Del Blanco, Judit López-Luque, Aleksandra Mas-Stachurska, Ana-Maria Siegert, Fabio Bonorino, Laura Barberà, Carolina García, Enric Condom, Marta Sitges, Fernando Rodríguez-Pascual, Francisco Laurindo, Katrin Schröder, Joaquim Ros, Isabel Fabregat, Gustavo Egea
Marfan syndrome (MFS) is characterized by the formation of ascending aortic aneurysms resulting from altered assembly of extracellular matrix fibrillin-containing microfibrils and dysfunction of TGF-β signaling. Here we identify the molecular targets of redox stress in aortic aneurysms from MFS patients, and investigate the role of NOX4, whose expression is strongly induced by TGF-β, in aneurysm formation and progression in a murine model of MFS. Working models included aortae and cultured vascular smooth muscle cells (VSMC) from MFS patients, and a NOX4-deficient Marfan mouse model (Fbn1C1039G/+ -Nox4-/- )...
February 19, 2018: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/29471107/pick1-deficiency-exacerbates-sepsis-associated-acute-lung-injury-and-impairs-glutathione-synthesis-via-reduction-of-xct
#18
Meizi Qian, Yingying Lou, Yixiu Wang, Minyuan Zhang, Qun Jiang, Yunchang Mo, Kunyuan Han, Shenhui Jin, Qinxue Dai, Yulong Yu, Zhen Wang, Junlu Wang
The role of oxidative stress has been well documented in the development of sepsis-induced acute lung injury (ALI). Protein interaction with C-kinase 1 (PICK1) participates in oxidative stress-related neuronal diseases. However, its function in lung infections and inflammatory diseases is not known. We therefore sought to investigate whether PICK1 is involved in sepsis-induced ALI. Cecal ligation and puncture (CLP) was performed in anesthetized wild type (WT) and PICK1 knock out (KO, PICK1-/- ) mice with C57BL/6 background...
February 19, 2018: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/29471086/gastroprotective-effect-of-ethanol-extracts-of-cladodes-and-roots-of-pilosocereus-gounellei-a-weber-ex-k-schum-bly-ex-rowl-cactaceae-on-experimental-ulcer-models
#19
Glaubert A Sousa, Irisdalva S Oliveira, Francilene V Silva-Freitas, Ana Flávia S C Viana, Benedito P S Neto, Francisco Valmor M Cunha, Rodrigo L G Gonçalves, Antônio Carlos M Lima Filho, Maurício P M Amaral, Rita de Cássia M Oliveira, Pedro D Fernandes, Jéssica K S Maciel, Tânia Maria S da Silva, Maria de Fátima V Souza, Francisco A Oliveira
ETHNOPHARMACOLOGICAL RELEVANCE: Pilosocereus gounellei Cactaceae), popularly known as "xique xique", is a species native from Caatinga region of Northeast Brazil, which is used by traditional communities in folk medicine for a variety of health problems, especially inflammatory processes and gastritis. AIM OF THE STUDY: The present study investigates the possible gastric antiulceractivity of ethanol extracts obtained from the cladodes and roots of Pilosocereus gounellei (EECPG and EERPG, respectively) and mechanisms of action underlying this effect...
February 19, 2018: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/29471083/imaging-the-penetration-and-distribution-of-zinc-and-zinc-species-after-topical-application-of-zinc-pyrithione-to-human-skin
#20
Amy M Holmes, Ivan Kempson, Tyron Turnbull, David Paterson, Michael S Roberts
Zinc pyrithione is an active component incorporated in an extensive range of topically applied commercial products that are used worldwide. Despite its prevalence, no published study has investigated the penetration of zinc from the zinc pyrithione complex into human skin. Zinc is crucial for healthy skin function however an elevated concentration of labile zinc is toxic outside a narrow concentration range. Synchrotron X-ray fluorescence microscopy in conjunction with X-ray absorption near edge structure spectroscopy was used to map the deposition of zinc, quantitate the amount of zinc within the skin and to identify a change in the chemical form of zinc after application...
February 19, 2018: Toxicology and Applied Pharmacology
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