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https://www.readbyqxmd.com/read/28859931/isoindolinone-containing-meroterpenoids-with-%C3%AE-glucosidase-inhibitory-activity-from-mushroom-hericium-caput-medusae
#1
Lin Chen, Zheng-Hui Li, Jian-Neng Yao, Yue-Ling Peng, Rong Huang, Tao Feng, Ji-Kai Liu
Hericium caput-medusae is an edible and medicinal mushroom closely relative to H. erinaceus. According to our detailed chemical investigation, two novel isoindolinone-containing meroterpene dimers, caputmedusins A (1) and B (2), as well as nine analogues, caputmedusins C-K (3-11), were isolated from the fermentation broth of H. caput-medusae. Their structures were elucidated by analyses of 1D and 2D NMR spectroscopic methods. The absolute configurations of 1-4 were speculated based on the specific optical rotation and biogenetic consideration...
August 30, 2017: Fitoterapia
https://www.readbyqxmd.com/read/28816089/medusa-s-head-the-complement-system-in-traumatic-brain-and-spinal-cord-injury
#2
Francesco Roselli, Ebru Karasu, Clara Volpe, Markus Huber-Lang
Traumatic brain injury (TBI) and Spinal cord injury (SCI) are critical medical conditions and public health problem for which limited therapeutic options are available. Complement cascade is activated after TBI and SCI and the resulting effects have been investigated in gene-knockout and pharmacological models. Multiple experimental studies support a net detrimental role of C3 and C5 activation in the early stages of TBI and SCI. Less firm experimental evidence suggests that, downstream of C3/C5, effector mechanisms including the generation of MAC and direct damage to membranes and neutrophils infiltration may bring about the direct damage of CNS tissue and the enhancement of neuroinflammation...
August 17, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/28769604/molecular-phylogeny-of-atractus-serpentes-dipsadidae-with-emphasis-on-ecuadorian-species-and-the-description-of-three-new-taxa
#3
Alejandro Arteaga, Konrad Mebert, Jorge H Valencia, Diego F Cisneros-Heredia, Nicolás Peñafiel, Carolina Reyes-Puig, José L Vieira-Fernandes, Juan M Guayasamin
We present a molecular phylogeny of snake genus Atractus, with an improved taxon sampling that includes 30 of the 140 species currently recognized. The phylogenetic tree supports the existence of at least three new species in the Pacific lowlands and adjacent Andean slopes of the Ecuadorian Andes, which we describe here. A unique combination of molecular, meristic and color pattern characters support the validity of the new species. With the newly acquired data, we propose and define the Atractus iridescens species group, as well as redefine the Atractus roulei species group...
2017: ZooKeys
https://www.readbyqxmd.com/read/28746410/environmental-factors-influencing-the-spatio-temporal-distribution-of-carybdea-marsupialis-lineo-1978-cubozoa-in-south-western-mediterranean-coasts
#4
Antonio Canepa, Verónica Fuentes, Mar Bosch-Belmar, Melissa Acevedo, Kilian Toledo-Guedes, Antonio Ortiz, Elia Durá, César Bordehore, Josep-Maria Gili
Jellyfish blooms cause important ecological and socio-economic problems. Among jellyfish, cubozoans are infamous for their painful, sometimes deadly, stings and are a major public concern in tropical to subtropical areas; however, there is little information about the possible causes of their outbreaks. After a bloom of the cubomedusa Carybdea marsupialis (Carybdeidae) along the coast of Denia (SW Mediterranean, Spain) in 2008 with negative consequences for local tourism, the necessity to understand the ecological restrictions on medusae abundance was evident...
2017: PloS One
https://www.readbyqxmd.com/read/28726071/the-legend-of-medusa-with-snake-hair-in-didymaion-in-didyma-turkey
#5
EDITORIAL
Ali Çağlar Turgut, Yaşar Barış Turgut, Mehmet Turgut
No abstract text is available yet for this article.
July 19, 2017: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/28611806/opportunities-and-constraints-in-characterizing-landscape-distribution-of-an-invasive-grass-from-very-high-resolution-multi-spectral-imagery
#6
Iryna Dronova, Erica N Spotswood, Katharine N Suding
Understanding spatial distributions of invasive plant species at early infestation stages is critical for assessing the dynamics and underlying factors of invasions. Recent progress in very high resolution remote sensing is facilitating this task by providing high spatial detail over whole-site extents that are prohibitive to comprehensive ground surveys. This study assessed the opportunities and constraints to characterize landscape distribution of the invasive grass medusahead (Elymus caput-medusae) in a ∼36...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28594342/development-and-testing-of-a-dual-accelerometer-vector-sensor-for-auv-acoustic-surveys
#7
Agni Mantouka, Paulo Felisberto, Paulo Santos, Friedrich Zabel, Mário Saleiro, Sérgio M Jesus, Luís Sebastião
This paper presents the design, manufacturing and testing of a Dual Accelerometer Vector Sensor (DAVS). The device was built within the activities of the WiMUST project, supported under the Horizon 2020 Framework Programme, which aims to improve the efficiency of the methodologies used to perform geophysical acoustic surveys at sea by the use of Autonomous Underwater Vehicles (AUVs). The DAVS has the potential to contribute to this aim in various ways, for example, owing to its spatial filtering capability, it may reduce the amount of post processing by discriminating the bottom from the surface reflections...
June 8, 2017: Sensors
https://www.readbyqxmd.com/read/28589847/comparison-of-the-inducing-effect-of-indole-compounds-on-medusa-formation-in-different-classes-of-medusozoa
#8
Luna Yamamori, Kazuya Okuizumi, Chika Sato, Shuhei Ikeda, Haruhiko Toyohara
Scyphozoa, Cubozoa and Hydrozoa are classes in the phylum Cnidaria that undergo metagenesis involving a dramatic morphological transition. In Scyphozoa and Cubozoa, when exposed to species- or strain-specific transition-inducing stimuli, asexually reproducing benthic polyps transform into sexually reproducing planktonic medusae. In Hydrozoa, exposure to species- or strainspecific transition-inducing stimuli causes formation of medusa buds in the polyp's body. In Aurelia aurita (Linnaeus, 1758) (Scyphozoa, Semaeostomeae), polyp-to-jellyfish transition is induced by some simple indole compounds...
June 2017: Zoological Science
https://www.readbyqxmd.com/read/28545145/respiratory-response-to-temperature-of-three-populations-of-aurelia-aurita-polyps-in-northern-europe
#9
Danja P Höhn, Cathy H Lucas, Sven Thatje
The benthic life stage (polyp or scyphistoma) of the bloom-forming jellyfish, Aurelia aurita (Linnaeus, 1759), also known as the moon jellyfish, contributes to the seasonal occurrence and abundance of medusa blooms via asexual reproduction. A. aurita is widely distributed in coastal areas in northern Europe, and one of the most studied jellyfish species. While the physiology of the visible medusa is largely understood, understanding of the physiology of the perennial benthic life-stage is scarce. To measure the physiological tolerance of A...
2017: PloS One
https://www.readbyqxmd.com/read/28508939/-the-worlds-of-gods-in-medicine
#10
REVIEW
A Karenberg
BACKGROUND: A number of designations for diseases, medicines and human body structures derive from classical mythology. To date, these eponyms have not been systematically investigated. OBJECTIVES: This paper provides an overview of this fringe component of medical vocabulary, looks at the history of several terms and formulates hypotheses as to why such creative etymologies have come into being. MATERIALS AND METHODS: In addition to relevant texts on ancient mythology, a variety of medical textbooks from the early modern period were analyzed...
May 16, 2017: Zeitschrift Für Rheumatologie
https://www.readbyqxmd.com/read/28492805/first-record-of-craspedacusta-sowerbii-lankester-1880-hydrozoa-limnomedusae-in-a-natural-freshwater-lagoon-of-uruguay-with-notes-on-polyp-stage-in-captivity
#11
M G Failla Siquier, W S Serra Alanis, C Martinez Debat
The freshwater cnidarian Craspedacusta sowerbii Lankester 1880, has invaded lakes and ponds as well as artificial water bodies throughout the world. The first record in Uruguay corresponding to the jellyfish was made in 1961 in two artificial fountains, with no mention of the polyp form. Although local reports of other related polyp species have been made, information on the benthic form of C. sowerbii is lacking. Here we report the finding of live frustules, solitary individuals, medusae and colonies from a natural lagoon in August 2010, allowing us to observe the morphology and behavior of the polyp stage in captivity...
May 4, 2017: Brazilian Journal of Biology, Revista Brasleira de Biologia
https://www.readbyqxmd.com/read/28489845/caput-medusae-due-to-portal-hypertension-in-schistosomiasis-mansoni
#12
Vitorino Modesto Dos Santos
A 62-year-old Brazilian man who lived in endemic areas of tropical diseases had an episode of hematemesis associated with portal hypertension. He used to swim in natural ponds during childhood and developed the hepatosplenic form of schistossomiasis with moderate ascites, in addition to the characteristic features of abdominal Caput Medusae. The aim of the report is highlight the role of chronic liver disease and schistossomiasis.
January 2017: Revista de Gastroenterología del Perú: órgano Oficial de la Sociedad de Gastroenterología del Perú
https://www.readbyqxmd.com/read/28484259/the-physiological-and-molecular-response-of-aurelia-sp-1-under-hypoxia
#13
Guoshan Wang, Yu Zhen, Zhigang Yu, Yan Shi, Qing Zhao, Jianyan Wang, Tiezhu Mi
Few studies have been published on the mechanisms of hypoxia response and tolerance in jellyfish, especially with respect to the regulatory mechanism at the molecular level. In this study, Aurelia sp.1, which is frequently found in Chinese coastal waters, was cultivated in a hypoxic system to determine the molecular mechanisms underlying its hypoxic response by studying the physiological activity, gene expression and metabolite contents in the prolyl hydroxylase domain (PHD)-hypoxia inducible factor (HIF) oxygen-sensing system...
May 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28466151/effect-of-a-multifaceted-educational-intervention-for-anti-infectious-measures-on-sepsis-mortality-a-cluster-randomized-trial
#14
Frank Bloos, Hendrik Rüddel, Daniel Thomas-Rüddel, Daniel Schwarzkopf, Christine Pausch, Stephan Harbarth, Torsten Schreiber, Matthias Gründling, John Marshall, Philipp Simon, Mitchell M Levy, Manfred Weiss, Andreas Weyland, Herwig Gerlach, Tobias Schürholz, Christoph Engel, Claudia Matthäus-Krämer, Christian Scheer, Friedhelm Bach, Reimer Riessen, Bernhard Poidinger, Karin Dey, Norbert Weiler, Andreas Meier-Hellmann, Helene H Häberle, Gabriele Wöbker, Udo X Kaisers, Konrad Reinhart
PURPOSE: Guidelines recommend administering antibiotics within 1 h of sepsis recognition but this recommendation remains untested by randomized trials. This trial was set up to investigate whether survival is improved by reducing the time before initiation of antimicrobial therapy by means of a multifaceted intervention in compliance with guideline recommendations. METHODS: The MEDUSA study, a prospective multicenter cluster-randomized trial, was conducted from July 2011 to July 2013 in 40 German hospitals...
May 2, 2017: Intensive Care Medicine
https://www.readbyqxmd.com/read/28443528/understanding-medusahead-low-intake-and-palatability-through-in-vitro-digestibility-and-fermentation-kinetics
#15
J J Montes-Sánchez, J J Villalba
The low intake of medusahead grass (Taeniatherum caput-medusae ssp. asperum) by sheep is attributed to the high silica content of the plant and its negative impact on digestibility, making this weed a successful competitor in grazed plant communities. The goals of this study were to determine the influence of (1) plant maturity stage (from late vegetative stage to beginning of senescence and thatch), (2) particle size (1, 5, 10 and 20 mm), and (3) high-quality feeds (alfalfa hay and a high-energy concentrate) on fermentation kinetics and apparent digestibility of medusahead relative to palatable feeds (alfalfa and tall fescue hays, and high-energy concentrates)...
April 26, 2017: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/28419691/the-low-diverse-gastric-microbiome-of-the-jellyfish-cotylorhiza-tuberculata-is-dominated-by-four-novel-taxa
#16
Tomeu Viver, Luis H Orellana, Janet K Hatt, Mercedes Urdiain, Sara Díaz, Michael Richter, Josefa Antón, Massimo Avian, Rudolf Amann, Konstantinos T Konstantinidis, Ramon Rosselló-Móra
Cotylorhiza tuberculata is an important scyphozoan jellyfish producing population blooms in the Mediterranean probably due to pelagic ecosystem's decay. Its gastric cavity can serve as a simple model of microbial-animal digestive associations, yet poorly characterized. Using state-of-the-art metagenomic population binning and catalyzed reporter deposition fluorescence in situ hybridization (CARD-FISH), we show that only four novel clonal phylotypes were consistently associated with multiple jellyfish adults...
August 2017: Environmental Microbiology
https://www.readbyqxmd.com/read/28388476/motile-behaviour-of-the-free-living-planktonic-ciliate-zoothamnium-pelagicum-ciliophora-peritrichia
#17
Fernando Gómez
Zoothamnium pelagicum is the only free-floating species among ∼1000 peritrich ciliates that develops its complete life cycle in the open ocean. In the NW Mediterranean Sea, Z. pelagicum was usually associated with ectobiotic bacteria, while in the South Atlantic Ocean was sometimes fouled by the diatom Licmophora. Each colony constituted a radial branch that joined at its base with other colonies to form a lens-shaped pseudocolony of up to 400 zooids. The cilia beat slowly, propelling the expanded pseudocolony in the direction of the concave face...
June 2017: European Journal of Protistology
https://www.readbyqxmd.com/read/28388360/molecular-characterization-of-aspartylglucosaminidase-a-lysosomal-hydrolase-upregulated-during-strobilation-in-the-moon-jellyfish-aurelia-aurita
#18
Natsumi Tsujita, Hiroyuki Kuwahara, Hiroki Koyama, Noriyuki Yanaka, Kenji Arakawa, Hisato Kuniyoshi
The life cycle of the moon jellyfish, Aurelia aurita, alternates between a benthic asexual polyp stage and a planktonic sexual medusa (jellyfish) stage. Transition from polyp to medusa is called strobilation. To investigate the molecular mechanisms of strobilation, we screened for genes that are upregulated during strobilation using the differential display method and we identified aspartylglucosaminidase (AGA), which encodes a lysosomal hydrolase. Similar to AGAs from other species, Aurelia AGA possessed an N-terminal signal peptide and potential N-glycosylation sites...
May 2017: Bioscience, Biotechnology, and Biochemistry
https://www.readbyqxmd.com/read/28344325/the-giant-deep-sea-octopus-haliphron-atlanticus-forages-on-gelatinous-fauna
#19
H J T Hoving, S H D Haddock
Feeding strategies and predator-prey interactions of many deep-sea pelagic organisms are still unknown. This is also true for pelagic cephalopods, some of which are very abundant in oceanic ecosystems and which are known for their elaborate behaviors and central role in many foodwebs. We report on the first observations of the giant deep-sea octopus Haliphron atlanticus with prey. Using remotely operated vehicles, we saw these giant octopods holding medusae in their arms. One of the medusae could be identified as Phacellophora camtschatica (the egg-yolk jelly)...
March 27, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28343460/new-methods-of-morphometric-analyses-on-scyphozoan-jellyfish-statoliths-including-the-first-direct-evidence-for-statolith-growth-using-calcein-as-a-fluorescent-marker
#20
Ilka Sötje, Tamar Dishon, Frank Hoffmann, Sabine Holst
Statoliths are the only hard structures in the gelatinous bell of most scyphozoan medusae and investigations on these structures could promote investigations of the understudied population dynamics and phylogeny of jellyfish. We examined the statoliths of Aurelia aurita jellyfish of different ages by light microscopic and microtomographic measurements supplemented by scanning electron microscopy. The morphometric analyses confirmed that statolith numbers and sizes increase during jellyfish development and revealed that newly-formed statoliths had similar shapes that may change during statolith growth...
March 27, 2017: Microscopy and Microanalysis
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