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https://www.readbyqxmd.com/read/28435373/comparative-clinical-efficacy-of-three-toothpastes-in-the-control-of-supragingival-calculus-formation
#1
Petcharat Kraivaphan, Cholticha Amornchat
OBJECTIVES: The purpose of this double-blind, parallel clinical study was to assess clinical efficacy in supragingival calculus formation reduction using Abhaibhubejhr Herbal Toothpaste compared to Colgate Total and Colgate Cavity Protection toothpastes. MATERIALS AND METHODS: A total of 150 subjects participated in the pretest phase. All subjects were given oral soft/hard tissue evaluation, calculus examination using Volpe-Manhold calculus, and whole mouth oral prophylaxis...
January 2017: European Journal of Dentistry
https://www.readbyqxmd.com/read/28429244/fluctuating-asymmetry-of-meristic-traits-an-isofemale-line-analysis-in-an-invasive-drosophilid-zaprionus-indianus
#2
Lilian Madi-Ravazzi, Luis Fernando Segala, Vincent Debat, Jean R David
Metric (e.g., body size) and meristic (e.g., bristle number) traits are of general use in quantitative genetic studies, and the phenotypic variance is subdivided into a genetic and a non-genetic environmental component. The non-genetic variance may have two origins: a common garden effect between individuals and a developmental instability within the same individual. Developmental instability may be studied by considering the fluctuating asymmetry (FA) between the two sides of the body. The isofemale line technique is a convenient method for investigating the architecture of natural populations but has been rarely implemented for investigating FA...
April 20, 2017: Genetica
https://www.readbyqxmd.com/read/28411930/marine-envenomation
#3
REVIEW
Kirsten B Hornbeak, Paul S Auerbach
Venomous aquatic animals are hazardous to swimmers, surfers, divers, and fishermen. Exposures include mild stings, bites, abrasions, and lacerations. Severe envenomations can be life threatening. This article reviews common marine envenomations, exploring causative species, clinical presentation, and current treatment recommendations. Recommendations are included for cnidaria, sponges, bristle worms, crown-of-thorns starfish, sea urchins, venomous fish, stingrays, cone snails, stonefish, blue-ringed octopus, and sea snakes...
May 2017: Emergency Medicine Clinics of North America
https://www.readbyqxmd.com/read/28398752/biomimetic-proteoglycans-mimic-macromolecular-architecture-and-water-uptake-of-natural-proteoglycans
#4
Katsiaryna Prudnikova, Robert W Yucha, Pavan Patel, Alicia Kriete, Lin Han, Lynn S Penn, Michele S Marcolongo
Aging and degeneration of human tissue come with the loss of tissue water retention and associated changes in physical properties partially due to degradation and subsequent loss of proteoglycans. We demonstrated a novel method of fabrication of biomimetic proteoglycans, which mimic the three-dimensional bottlebrush architecture and physical behavior of natural proteoglycans responsible for tissue hydration and structural integrity. Biomimetic proteoglycans are synthesized by an end-on attachment of natural chondroitin sulfate bristles to a synthetic poly(acryloyl chloride) backbone...
April 11, 2017: Biomacromolecules
https://www.readbyqxmd.com/read/28394901/chromosomal-localization-of-genes-conferring-desirable-agronomic-traits-from-agropyron-cristatum-chromosome-1p
#5
Cuili Pan, Qingfeng Li, Yuqing Lu, Jinpeng Zhang, Xinming Yang, Xiuquan Li, Lihui Li, Weihua Liu
Agropyron cristatum (L.) Gaertn. (2n = 4x = 28, PPPP), a wild relative of common wheat, possesses many potentially valuable genes for wheat breeding. To transfer these genes into wheat, a series of wheat-A. cristatum derivatives have been obtained in our laboratory. In this study, a wheat-A. cristatum derivative II-3-1 was obtained, which was proven to contain a 1P (1A) disomic substitution and 2P disomic addition line with 40 wheat chromosomes and two pairs of A. cristatum chromosomes by genomic in situ hybridization (GISH) and molecular markers analysis...
2017: PloS One
https://www.readbyqxmd.com/read/28394891/xylosylation-of-the-notch-receptor-preserves-the-balance-between-its-activation-by-trans-delta-and-inhibition-by-cis-ligands-in-drosophila
#6
Tom V Lee, Ashutosh Pandey, Hamed Jafar-Nejad
The Drosophila glucoside xylosyltransferase Shams xylosylates Notch and inhibits Notch signaling in specific contexts including wing vein development. However, the molecular mechanisms underlying context-specificity of the shams phenotype is not known. Considering the role of Delta-Notch signaling in wing vein formation, we hypothesized that Shams might affect Delta-mediated Notch signaling in Drosophila. Using genetic interaction studies, we find that altering the gene dosage of Delta affects the wing vein and head bristle phenotypes caused by loss of Shams or by mutations in the Notch xylosylation sites...
April 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28390206/comparative-efficacy-of-a-soft-toothbrush-with-tapered-tip-bristles-to-an-ada-reference-toothbrush-on-gingival-abrasion-over-a-12-week-period
#7
John Gallob, Dolores M Petrone, Luis R Mateo, Patricia Chaknis, Boyce M Morrison, Foti Panagakos, Malcolm Williams
OBJECTIVES: Evaluation of the impact of a soft toothbrush with tapered-tip (Test Toothbrush) bristles and an ADA reference toothbrush (ADA Toothbrush) on gingival abrasion over a 12-week period. METHODS: This was a randomized, single-center, examiner-blind, two-cell, parallel clinical research study and used the Danser Gingival Abrasion Index to assess the level of gingival abrasion after a single brushing, as well as after six weeks and 12 weeks of twice-daily brushing...
June 2016: Journal of Clinical Dentistry
https://www.readbyqxmd.com/read/28390205/comparative-efficacy-of-a-soft-toothbrush-with-tapered-tip-bristles-and-an-ada-reference-toothbrush-on-established-gingivitis-and-supragingival-plaque-over-a-12-week-period
#8
John Gallob, Dolores M Petrone, Luis R Mateo, Patricia Chaknis, Boyce M Morrison, Malcolm Williams, Foti Panagakos
OBJECTIVES: Evaluation of the efficacy of a soft toothbrush with tapered-tip bristles (Test Toothbrush) and an ADA reference soft toothbrush (ADA Toothbrush) on established gingivitis and supragingival plaque over a 12-week period. METHODS: This randomized, single-center, examiner-blind, two-cell, parallel clinical research study assessed plaque removal by the comparison of pre- to- post-brushing after a single use, and again after six- and 12-weeks' use, using the Quigley-Hein Plaque Index, Turesky Modification...
June 2016: Journal of Clinical Dentistry
https://www.readbyqxmd.com/read/28386027/self-organized-notch-dynamics-generate-stereotyped-sensory-organ-patterns-in-drosophila
#9
Francis Corson, Lydie Couturier, Hervé Rouault, Khalil Mazouni, François Schweisguth
The emergence of spatial patterns in developing multicellular organisms relies on positional cues and cell-cell communication. Drosophila sensory organs have informed a paradigm where these operate in two distinct steps: prepattern factors drive localized proneural activity, then Notch-mediated lateral inhibition singles out neural precursors. Here we show that self-organization through Notch signaling also organizes the proneural stripes that resolve into rows of sensory bristles on the fly thorax. Patterning, initiated by a gradient of Delta ligand expression, progresses through inhibitory signaling between and within stripes...
April 6, 2017: Science
https://www.readbyqxmd.com/read/28385241/synthesis-of-macromolecular-mimics-of-small-leucine-rich-proteoglycans-with-a-poly-ethylene-glycol-core-and-chondroitin-sulphate-bristles
#10
Sumona Sarkar, Carli Moorehead, Katsiaryna Prudnikova, Caroline L Schauer, Lynn S Penn, Michele Marcolongo
Small leucine-rich proteoglycans (SLRPs) are a class of molecules prevalent in almost all tissues types and are thought to be responsible for collagen organization and macro-scale biological properties. However, when they are dysfunctional or degraded, severe pathological phenotypes are observed. Here we investigate macromolecular mimics to SLRPs using poly(ethylene glycol) (PEG) as a core (replacing the protein core of natural SLRPs) and chondroitin sulphate (CS) bristle(s) in an end-on attachment (via epoxide-amine reactions), mimicking the physical structure of the natural SLRPs...
June 15, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28327855/-hemorrhagic-erucism-due-to-lonomia-spp-in-a-girl
#11
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
#12
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
#13
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
#14
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
#15
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
#16
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
#17
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
#18
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 dishevelled 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...
April 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
#19
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
#20
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
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