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https://www.readbyqxmd.com/read/28327855/-hemorrhagic-erucism-due-to-lonomia-spp-in-a-girl
#1
Walter Peña-Vásquez, Héctor Vásquez-Paz, Rubén Vásquez-Becerra, Alfredo Chiappe-Gonzalez, Marcos Ñavincopa-Flores, Eduardo Ticona-Chávez
Accidents caused by urticating or poisonous setae from lepidoptera caterpillars are known as erucism. These accidents are produced by accidental contact, especially in children, with bristles on the insect's body surface, connected to venom glands. Symptoms may be local or systemic, with deadly clinical presentations. The accident caused by Lonomia spp. caterpillars can trigger bleeding disorders, which is considered the most severe type of erucism. The case of a 5-year-old girl is reported. She was from the town of Villarondos, in the Peruvian Amazon, department of Huánuco, who accidentally knelt down on caterpillar bristles, and subsequently experienced hemolytic anemia, plateletopenia, and coagulation disorder...
October 2016: Revista Peruana de Medicina Experimental y Salud Pública
https://www.readbyqxmd.com/read/28321944/self-assembling-brush-polymers-bearing-multisaccharides
#2
Jongchan Lee, Jin Chul Kim, Hoyeol Lee, Sungjin Song, Heesoo Kim, Moonhor Ree
Three different series of brush polymers bearing glucosyl, maltosyl, or maltotriosyl moiety at the bristle end are successfully prepared by using cationic ring-opening polymerization and two sequential postmodification reactions. All brush polymers, except for the polymer containing 100 mol% maltotriosyl moiety, demonstrate the formation of multibilayer structure in films, always providing saccharide-enriched surface. These self-assembling features are remarkable, regarding the bulkiness of saccharide moieties and the kink in the bristle due to the triazole linker...
March 21, 2017: Macromolecular Rapid Communications
https://www.readbyqxmd.com/read/28316431/on-the-recovery-of-horsehair-worms-gordius-sp-nematomorpha-gordiida-from-pork-in-shillong-india
#3
Arun K Yadav, Andreas Schmidt-Rhaesa, R Laha, A Sen
The members of the phylum Nematomorpha, called as horsehair or gordian worms, are the parasites of arthropods and emerge from their host for reproduction and early development in water. There are about 360 species of nematomorphs described till date. Although, horsehair worms are parasites of arthropod species, sporadic cases of their occurrence have also been reported from several other hosts, including man. This paper describes a case history of the occurrence of two nematomorph worms in the meat of a pig in Shillong, India...
March 2017: Journal of Parasitic Diseases: Official Organ of the Indian Society for Parasitology
https://www.readbyqxmd.com/read/28304136/zebrafish-models-of-non-canonical-wnt-planar-cell-polarity-signalling-fishing-for-valuable-insight-into-vertebrate-polarized-cell-behavior
#4
REVIEW
Maria Jussila, Brian Ciruna
Planar cell polarity (PCP) coordinates the uniform orientation, structure and movement of cells within the plane of a tissue or organ system. It is beautifully illustrated in the polarized arrangement of bristles and hairs that project from specialized cell surfaces of the insect abdomen and wings, and pioneering genetic studies using the fruit fly, Drosophila melanogaster, have defined a core signalling network underlying PCP. This core PCP/non-canonical Wnt signalling pathway is evolutionarily conserved, and studies in zebrafish have helped transform our understanding of PCP from a peculiarity of polarized epithelia to a more universal cellular property that orchestrates a diverse suite of polarized cell behaviors that are required for normal vertebrate development...
March 17, 2017: Wiley Interdisciplinary Reviews. Developmental Biology
https://www.readbyqxmd.com/read/28295897/summer-danger-penetrating-pancreatic-injury-from-barbecue-wire-bristle
#5
Rafael Gaszynski, Katherine J Zhu
No abstract text is available yet for this article.
March 15, 2017: ANZ Journal of Surgery
https://www.readbyqxmd.com/read/28264402/australian-species-of-i-ommatius-i-wiedemann-diptera-asilidae-with-an-anepimeral-bristle
#6
Greg Daniels
The presence of an anepimeral bristle in Australian Ommatius Wiedemann species is newly recorded and descriptions of seven new species possessing this character are presented: O. aquilonaris sp. nov., O. burwelli sp. nov., O. imaginis sp. nov., O. limbatus sp. nov., O. melasmus sp. nov., O. musselbrookensis sp. nov. and O. radamnis sp. nov. All species occur in Queensland but O. melasmus sp. nov. also occurs in New South Wales and O. musselbrookensis sp. nov. also occurs in the Northern Territory. A key to separate the species is presented...
February 13, 2017: Zootaxa
https://www.readbyqxmd.com/read/28264372/taxonomy-of-i-euconnus-i-complex-part-x-i-drastophus-i-placed-as-a-junior-synonym-of-i-tetramelus-i-and-smicrophus-as-a-junior-synonym-of-i-napochus-i-coleoptera-staphylinidae-scydmaeninae
#7
Paweł Jałoszyński
Drastophus and Smicrophus were originally described as genera of Nearctic Scydmaeninae. Drastophus was later synonymized with Euconnus s. str., and subsequently resurrected as a subgenus of Euconnus. Smicrophus was also proposed as a genus, and later placed as a subgenus of Euconnus. However, examination of the type species of each subgenus in the present study led to different conclusions. Drastophus laevicollis differs only in minor details from the type species of Euconnus (Tetramelus), namely in a shorter head, and the pronotum not constricted near base and lacking the median longitudinal antebasal carina...
February 16, 2017: Zootaxa
https://www.readbyqxmd.com/read/28258110/planar-cell-polarity-effector-fritz-interacts-with-dishevelled-and-has-multiple-functions-in-regulating-pcp
#8
Ying Wang, Victor F Naturale, Paul N Adler
The Planar cell Polarity Effector (PPE) genes inturned, fuzzy and fritz are downstream components in the frizzled/starry night signaling pathway, and their function is instructed by upstream Planar Cell Polarity (PCP) core genes such as frizzled and disheveled PPE proteins accumulate asymmetrically in wing cells and function in a protein complex mediated by direct interactions between In and Frtz and In and Fy. How the PCP proteins instruct the accumulation of PPE protein is unknown. We found a likely direct interaction between Dishevelled and Fritz and Dishevelled and Fuzzy that could play a role in this...
March 3, 2017: G3: Genes—Genomes—Genetics
https://www.readbyqxmd.com/read/28230190/modulation-of-yellow-expression-contributes-to-thermal-plasticity-of-female-abdominal-pigmentation-in-drosophila-melanogaster
#9
Jean-Michel Gibert, Emmanuèle Mouchel-Vielh, Frédérique Peronnet
Phenotypic plasticity describes the ability of a given genotype to produce distinct phenotypes in different environments. We use the temperature sensitivity of abdominal pigmentation in Drosophila melanogaster females as a model to analyse the effect of the environment on development. We reported previously that thermal plasticity of abdominal pigmentation in females involves the pigmentation gene tan (t). However, the expression of the pigmentation gene yellow (y) was also modulated by temperature in the abdominal epidermis of pharate females...
February 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28222156/toothbrush-abrasivity-in-a-long-term-simulation-on-human-dentin-depends-on-brushing-mode-and-bristle-arrangement
#10
Mozhgan Bizhang, Ilka Schmidt, Yong-Hee Patricia Chun, Wolfgang H Arnold, Stefan Zimmer
OBJECTIVE: The aim of this study was to evaluate the susceptibility of dentin to brushing abrasion using four different toothbrushes (rotating-oscillating, sonic and two types of manual toothbrushes) with the same brushing forces. METHODS: Dentin samples (n = 72) were selected from 72 impacted third molars. Half of the surface of dentin samples was covered with an adhesive tape, creating a protected and a freely exposed area in the same specimen. Brushing was performed with either a: sonic (Sonicare PowerUp, Philips GmbH, Hamburg, Germany), b: oscillating-rotating (Oral B Vitality Precisions Clean, Procter & Gamble, Schwalbach am Taunus, Germany) or two different manual toothbrushes c: flat trim brush head toothbrush (Dr...
2017: PloS One
https://www.readbyqxmd.com/read/28214751/structure-and-distribution-of-the-sensilla-on-the-antennae-of-tuta-absoluta-lepidoptera-gelechiidae
#11
Thomas Bawin, France Collard, Lara De Backer, Boni Barthélémy Yarou, Philippe Compère, Frédéric Francis, François J Verheggen
The tomato leafminer, Tuta absoluta (Lepidoptera: Gelechiidae), is a widespread devastating pest that develops on tomato and other economically important solanaceous crops. Current semiochemically-based management strategies still fail to significantly reduce damages and need to be improved. Here we describe under scanning and transmission electron microscopy the structure and distribution of the sensilla that are displayed on adult antennae. These were similar in size between males (3424.4±135.3μm) and females (3292...
February 1, 2017: Micron: the International Research and Review Journal for Microscopy
https://www.readbyqxmd.com/read/28206892/influence-of-the-amount-of-dentifrice-and-fluoride-concentrations-on-salivary-fluoride-levels-in-children
#12
Kevin Bruce Hall, Alberto Carlos Botazzo Delbem, Mariana Emi Nagata, Thayse Yumi Hosida, Felipe Ricardo Nunes de Moraes, Marcelle Danelon, Robson Frederico Cunha, Juliano Pelim Pessan
PURPOSE: This study evaluated fluoride (F) concentrations in saliva of children after brushing with dentifrices containing different F concentrations (zero, 550, and 1,100 ppm F) in different quantities (full bristles, transversal technique, and pea-sized). METHODS: Eight- to 10-year-old volunteers (<small>N</small>=24) were randomly assigned into nine experimental groups (dentifrice type versus amounts) following a double-blind, crossover protocol. After a one-week washout period (use of placebo toothpaste), stimulated saliva was collected prior to toothbrushing (baseline) and at five, 15, 30, 60, and 120 minutes after toothbrushing with one of the possible combinations...
October 15, 2016: Pediatric Dentistry
https://www.readbyqxmd.com/read/28203127/a-case-of-mysterious-impacted-duodenal-foreign-body-presenting-with-halitosis
#13
Bhavtosh Dedania, Dipen Khanapara, Amruta Panwala, Murali Dharan
The majority of gastrointestinal (GI) foreign bodies (FBs) discovered in adults are the result of intentional ingestion, most of which are found in patients with a preexisting psychiatric illness, with substance abuse disorders, or in people seeking secondary gain. No similar case of internal injuries following unintentional ingestion of a barbecue grill cleaning brush bristle has been reported. A 58-year-old Caucasian male with no significant history presented with complaint of halitosis, not improving after oral care and dental hygiene measures...
September 2016: Case Reports in Gastroenterology
https://www.readbyqxmd.com/read/28194869/the-effect-of-brushing-and-aging-on-the-staining-and-smoothness-of-resin-composites
#14
Lisandra R Mozzaquatro, Camila S Rodrigues, Marina R Kaizer, Maristela Lago, André Mallmann, Letícia B Jacques
OBJECTIVES: To evaluate the staining and smoothness of resin composites undergoing aging in water or red wine and simulated brushing with or without dentifrice. METHODS: The resin composites (Z250 microfilled and Z350XT nanofilled) were tested according to aging media (deionized water or red wine) and surface treatment (no brushing, brushed with water, or brushed with dentifrice). Specimens (n = 10) were subjected to three aging cycles (5 days) of continuous immersion in the aging media; each followed by simulated brushing (585 strokes)...
February 13, 2017: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/28174239/ataxin-2-binding-protein-1-is-a-context-specific-positive-regulator-of-notch-signaling-during-neurogenesis-in-drosophila-melanogaster
#15
Jay Prakash Shukla, Girish Deshpande, L S Shashidhara
The role of Notch pathway during lateral inhibition underlying binary cell fate choice is extensively studied, although context-specificity that generates diverse outcomes is relatively less well understood. In the peripheral nervous system of Drosophila melanogaster, differential Notch signaling between cells of proneural cluster orchestrates sensory organ specification. Here we report functional analysis of Drosophila Ataxin2 binding protein1 (dA2BP1) during this process. It's human orthologue A2BP1 is linked to type 2 Spinocerebellar ataxia and other complex neuronal disorders...
February 7, 2017: Development
https://www.readbyqxmd.com/read/28148821/the-notch-pathway-in-the-annelid-platynereis-insights-into-chaetogenesis-and-neurogenesis-processes
#16
Eve Gazave, Quentin I B Lemaître, Guillaume Balavoine
Notch is a key signalling pathway playing multiple and varied functions during development. Notch regulates the selection of cells with a neurogenic fate and maintains a pool of yet uncommitted precursors through lateral inhibition, both in insects and in vertebrates. Here, we explore the functions of Notch in the annelid Platynereis dumerilii (Lophotrochozoa). Conserved components of the pathway are identified and a scenario for their evolution in metazoans is proposed. Unexpectedly, neither Notch nor its ligands are expressed in the neurogenic epithelia of the larva at the time when massive neurogenesis begins...
February 2017: Open Biology
https://www.readbyqxmd.com/read/28141580/bio-inspired-annelid-robot-a-dielectric-elastomer-actuated-soft-robot
#17
Liang Xu, Han-Qing Chen, Jiang Zou, Wan-Ting Dong, Guo-Ying Gu, Li-Min Zhu, Xiang-Yang Zhu
Biologically inspired robots with inherent softness and body compliance increasingly attract attention in the field of robotics. Aimed at solving existing problems with soft robots, regarding actuation technology and biological principles, this paper presents a soft bio-inspired annelid robot driven by dielectric elastomer actuators (DEAs) that can advance on flat rigid surfaces. The DEA, a kind of soft functional actuator, is designed and fabricated to mimic the axial elongation and differential friction of a single annelid body segment...
January 31, 2017: Bioinspiration & Biomimetics
https://www.readbyqxmd.com/read/28094781/ultrastructure-of-sensilla-of-antennae-and-ovipositor-of-sitotroga-cerealella-lepidoptera-gelechiidae-and-location-of-female-sex-pheromone-gland
#18
Min Ma, Meng-Meng Chang, Yan Lu, Chao-Liang Lei, Feng-Lian Yang
The Angoumois grain moth, Sitotroga cerealella, is a serious pest of stored grains worldwide. Presently, the best effective control against the moth is to disrupt the sexual communication between sexes. Sexual communication in moths includes two processes in which females produce and release pheromones from the sex pheromone gland and males detect and respond to them with a relatively sophisticated olfactory system in their antennae. To better understand these processes, we studied the ultrastructure of antennal and ovipositor sensilla of S...
January 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28077491/sphingosine-1-phosphate-lyase-deficiency-causes-charcot-marie-tooth-neuropathy
#19
Derek Atkinson, Jelena Nikodinovic Glumac, Bob Asselbergh, Biljana Ermanoska, David Blocquel, Regula Steiner, Alejandro Estrada-Cuzcano, Kristien Peeters, Tinne Ooms, Els De Vriendt, Xiang-Lei Yang, Thorsten Hornemann, Vedrana Milic Rasic, Albena Jordanova
OBJECTIVE: To identify the unknown genetic cause in a nuclear family with an axonal form of peripheral neuropathy and atypical disease course. METHODS: Detailed neurologic, electrophysiologic, and neuropathologic examinations of the patients were performed. Whole exome sequencing of both affected individuals was done. The effect of the identified sequence variations was investigated at cDNA and protein level in patient-derived lymphoblasts. The plasma sphingoid base profile was analyzed...
February 7, 2017: Neurology
https://www.readbyqxmd.com/read/28076469/scoring-clinical-signs-can-help-diagnose-canine-visceral-leishmaniasis-in-a-highly-endemic-area-in-brazil
#20
Kleverton Ribeiro da Silva, Vitor Rosa Ramos de Mendonça, Kellen Matuzzy Silva, Leopoldo Fabrício Marçal do Nascimento, Antonio Ferreira Mendes-Sousa, Flaviane Alves de Pinho, Manoel Barral-Netto, Aldina Maria Prado Barral, Maria do Socorro Pires E Cruz
Canine visceral leishmaniasis (CVL) diagnosis is still a challenge in endemic areas with limited diagnostic resources. This study proposes a score with the potential to distinguish positive CVL cases from negative ones. We studied 265 dogs that tested positive for CVL on ELISA and parasitological tests. A score ranging between 0 and 19 was recorded on the basis of clinical signs. Dogs with CVL had an overall higher positivity of the majority of clinical signs than did dogs without CVL or with ehrlichiosis. Clinical signs such as enlarged lymph nodes (83...
January 1, 2017: Memórias do Instituto Oswaldo Cruz
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