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https://www.readbyqxmd.com/read/28222969/patient-tumour-and-treatment-factors-affect-complication-rates-in-soft-tissue-sarcoma-flap-reconstruction-in-a-synergistic-manner
#1
J Slump, P C Ferguson, J S Wunder, A M Griffin, H J Hoekstra, X Liu, S O P Hofer, A C O'Neill
INTRODUCTION: Flap reconstruction plays an essential role in the management of soft tissue sarcoma, facilitating wide resection while maximizing preservation of function. The addition of reconstruction increases the complexity of the surgery and identification of patients who are at high risk for post-operative complications is an important part of the preoperative assessment. This study examines predictors of complications in these patients. METHODS: 294 patients undergoing flap reconstruction following sarcoma resection were evaluated...
February 8, 2017: European Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28221885/antibacterial-and-antiadhesive-activities-of-extracts-from-edible-plants-against-soft-drink-spoilage-by-asaia-spp
#2
Hubert Antolak, Agata Czyzowska, Dorota Kregiel
This study was conducted to investigate the antibacterial and antiadhesive activities of ethanol extracts from five edible plant parts: cinnamon bark ( Cinnamomum zeylanicum ), licorice root ( Glycyrrhiza radix ), nettle leaves ( Urtica dioica ), green tea leaves ( Camellia sinensis ), and elderberry flowers ( Sambucus nigra ). The chemical constituents of the extracts were identified using high-performance liquid chromatography and liquid chromatography plus mass spectrometry. Six strains of Asaia lannensis and Asaia bogorensis bacteria isolated from spoiled commercial fruit-flavored noncarbonated mineral water were used...
January 2017: Journal of Food Protection
https://www.readbyqxmd.com/read/28220886/earth-s-oldest-bobbit-worm-gigantism-in-a-devonian-eunicidan-polychaete
#3
Mats E Eriksson, Luke A Parry, David M Rudkin
Whilst the fossil record of polychaete worms extends to the early Cambrian, much data on this group derive from microfossils known as scolecodonts. These are sclerotized jaw elements, which generally range from 0.1-2 mm in size, and which, in contrast to the soft-body anatomy, have good preservation potential and a continuous fossil record. Here we describe a new eunicidan polychaete, Websteroprion armstrongi gen. et sp. nov., based primarily on monospecific bedding plane assemblages from the Lower-Middle Devonian Kwataboahegan Formation of Ontario, Canada...
February 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28220619/the-palatal-interpterygoid-vacuities-of-temnospondyls-and-the-implications-for-the-associated-eye-and-jaw-musculature
#4
Florian Witzmann, Ingmar Werneburg
A diagnostic feature of temnospondyls is the presence of an open palate with large interpterygoid vacuities, unlike the closed palate of most other early tetrapods, in which the vacuities are either slit-like or completely absent. Attachment sites on neurocranium and palatal bones in temnospondyls allow the reconstruction of a powerful m. retractor bulbi and a large, sheet-like m. levator bulbi that formed the elastic floor of the orbit. This muscle arrangement indicates that temnospondyls were able to retract the eyeballs through the interpterygoid vacuities into the buccal cavity, like extant frogs and salamanders...
February 21, 2017: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/28210449/oral-mucosal-lesions-in-a-chilean-elderly-population-a-retrospective-study-with-a-systematic-review-from-thirteen-countries
#5
César Rivera, Daniel Droguett, María-Jesús Arenas-Márquez
BACKGROUND: The oral examination is an essential part of the multidisciplinary medical care in elderly people. Oral mucosal lesions and normal variations of oral anatomy (OMLs) are very common in this people, but few studies have examined the frequency and prevalence of these conditions worldwide and less in Chile. The aim of this research was to evaluate the frequency of OMLs in a Chilean elderly population. MATERIAL AND METHODS: It was conducted a retrospective study (Talca, Chile)...
February 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/28209365/gelatin-and-non-gelatin-capsule-dosage-forms
#6
REVIEW
Rampurna P Gullapalli, Carolyn L Mazzitelli
Capsules offer an alternate to tablets for oral delivery of therapeutic compounds. One advantage of capsules over tablets is their amenability to deliver not only solids but also non-aqueous liquids and semisolids as a unit dose solid dosage form. Shell component is an essential part of capsule dosage forms. Capsule shells, available as hard or soft shells, are formulated from gelatin or a non-gelatin polymeric material such as hypromellose and starch, water, and with or without a non-volatile plasticizer. The capsule shells may also be formulated to modify the release of their fill contents in a site-specific manner in the gastrointestinal tract...
February 13, 2017: Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28208669/the-role-of-nerve-growth-factor-ngf-and-its-precursor-forms-in-oral-wound-healing
#7
REVIEW
Karl Schenck, Olav Schreurs, Katsuhiko Hayashi, Kristen Helgeland
Nerve growth factor (NGF) and its different precursor forms are secreted into human saliva by salivary glands and are also produced by an array of cells in the tissues of the oral cavity. The major forms of NGF in human saliva are forms of pro-nerve growth factor (pro-NGF) and not mature NGF. The NGF receptors tropomyosin-related kinase A (TrkA) and p75 neurotrophin receptor (p75(NTR)) are widely expressed on cells in the soft tissues of the human oral cavity, including keratinocytes, endothelial cells, fibroblasts and leukocytes, and in ductal and acinar cells of all types of salivary glands...
February 11, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28205191/novel-and-expanded-oncology-drug-approvals-of-2016-part-1-new-options-in-solid-tumor-management
#8
REVIEW
Todd C Knepper, James Saller, Christine M Walko
The nonradiologic medical management of solid tumors has evolved from the use of traditional cytotoxic agents to modern targeted therapies, monoclonal antibodies, and immunotherapies. Advances in the understanding of cancer biology and therapeutic strategies have resulted in increasing numbers of new drug applications and approvals. Consequently, practicing oncologists need to learn how the newly available agents function and what toxicities to watch for, as well as ways to optimize the use of both new drugs and previously approved drugs with new indications...
February 15, 2017: Oncology (Williston Park, NY)
https://www.readbyqxmd.com/read/28196712/ipomoea-pes-caprae-l-r-br-convolvulaceae-as-a-topical-herbal-medicine-to-relieve-pain-and-inflammation-promising-tool-against-effects-due-to-toxin-skin-contact
#9
Cristiane da Silva Barth, Hugo Guilherme Tolentino de Souza, Lilian W Rocha, Gislaine Francieli da Silva, Mariana Ferreira Dos Anjos, Veronica D'Avila Pastor, Tania Mari Belle Bresolin, Angelica Garcia Couto, José Roberto Santin, Nara Lins Meira Quintão
ETHNOPHARMACOLOGICAL RELEVANCE: Ipomoea pes-caprae is known as bayhops, beach morning glory or goat's foot, and in Brazil as salsa-de-praia. Its leaves are used in worldwide folk medicine for the relief of jellyfish-stings symptoms. The literature only reports the anti-inflammatory and neutralizing effects of a nonpolar plant derived, without validating the popular use or exploring the mechanism of action. AIM OF THE STUDY: This study aimed to evaluate and validate the topical effects of a semisolid containing hydroethanolic extract obtained from the aerial parts of I...
February 11, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28196304/cell-guidance-on-nanostructured-metal-based-surfaces
#10
REVIEW
Yulia Zhukova, Ekaterina V Skorb
Metal surface nanostructuring to guide cell behavior is an attractive strategy to improve parts of medical implants, lab-on-a-chip, soft robotics, self-assembled microdevices, and bionic devices. Here, we discus important parameters, relevant trends, and specific examples of metal surface nanostructuring to guide cell behavior on metal-based hybrid surfaces. Surface nanostructuring allows precise control of cell morphology, adhesion, internal organization, and function. Pre-organized metal nanostructuring and dynamic stimuli-responsive surfaces are used to study various cell behaviors...
February 14, 2017: Advanced Healthcare Materials
https://www.readbyqxmd.com/read/28194713/use-of-compressive-osseointegration-endoprostheses-for-massive-bone-loss-from-tumor-and-failed-arthroplasty-a-viable-option-in-the-upper-extremity
#11
Krista A Goulding, Adam Schwartz, Steven J Hattrup, R Lor Randall, Donald Lee, Damian M Rispoli, Daniel M Lerman, Christopher Beauchamp
BACKGROUND: Endoprostheses using principles of compressive osseointegration have shown good survivorship in several studies involving the lower extremity; however, no series to our knowledge have documented the use of this technology in the management of massive bone loss in the upper limb. QUESTIONS/PURPOSES: (1) What proportion of upper extremity implants using compressive osseointegration fixation principles achieved durable short-term fixation, and what were the modes of failure? (2) What surgical complications resulted from reconstruction using this technique? METHODS: A multiinstitutional retrospective review identified nine patients (five women; four men) who underwent 13 endoprosthetic replacements between 2003 and 2014 using compressive osseointegration (Compliant(®) Pre-stress Device [CPS]; Biomet Inc, Warsaw, IN, USA) in the upper extremity, including two proximal humeri, two humeral diaphyses, seven distal humeri, and two proximal ulna...
February 13, 2017: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/28191489/an-efficiency-framework-for-valence-processing-systems-inspired-by-soft-cross-wiring
#12
P Read Montague, Kenneth T Kishida, Rosalyn J Moran, Terry M Lohrenz
Recent experiments suggest that subsecond dopamine delivery to human striatum encodes a combination of reward prediction errors and counterfactual errors thus composing the actual with the possible into one neurochemical signal. Here, we present a model where the counterfactual part of these striatal dopamine fluctuations originates in another valuation system that shadows the dopamine system by acting as its near-antipode in terms of spike-rate encoding yet co-releases dopamine alongside its own native neurotransmitter...
October 2016: Current Opinion in Behavioral Sciences
https://www.readbyqxmd.com/read/28190803/characterization-of-a-novel-rhamnose-containing-acidic-glycosphingolipid-from-the-ascidian-halocynthia-aurantium
#13
Hisao Kojima, Ryota Shinohara, Saki Itonori, Masahiro Ito
Halocynthia aurantium, an edible ascidian species belonging to Urochordata, was subjected to structural characterization of acidic glycosphingolipids to investigate these molecules in ascidians: sulfatide from Ciona intestinalis and the glucuronic acid-containing acidic glycosphingolipid from H. roretzi. Acidic glycosphingolipids containing three or five sugars were isolated from soft parts of the ascidian H. aurantium by chloroform-methanol extraction, mild-alkaline hydrolysis, precipitation with cold acetone, and subsequent column chromatography using a DEAE-Sephadex A-25 column, a Florisil column, and an Iatrobead column...
February 10, 2017: Journal of Oleo Science
https://www.readbyqxmd.com/read/28188683/functional-kras-mutations-and-a-potential-role-for-pi3k-akt-activation-in-wilms-tumors
#14
Dina Polosukhina, Harold D Love, Hernan Correa, Zengliu Su, Kimberly B Dahlman, William Pao, Harold L Moses, Carlos L Arteaga, Harold N Lovvorn, Roy Zent, Peter E Clark
Wilms tumor (WT) is the most common renal neoplasm of childhood and affects 1 in 10,000 children aged less than 15 years. These embryonal tumors are thought to arise from primitive nephrogenic rests that derive from the metanephric mesenchyme during kidney development and are characterized partly by increased Wnt/β-catenin signaling. We previously showed that coordinate activation of Ras and β-catenin accelerates the growth and metastatic progression of a murine WT model. Here, we show that activating KRAS mutations can be found in human WT...
February 11, 2017: Molecular Oncology
https://www.readbyqxmd.com/read/28186723/bioresponsive-dna-hydrogels-beyond-the-conventional-stimuli-responsiveness
#15
Dong Wang, Yue Hu, Peifeng Liu, Dan Luo
Bioresponsive hydrogels can respond to various biological stimuli by a macroscopic change of physical state or by converting biochemical inputs into biological or mechanical outputs. These materials are playing an increasingly important role in a wide variety of applications, especially in the biological and biomedical fields. However, the design and engineering of intriguing bioresponsive materials with adequate biocompatibility and biodegradability have proven to be a great challenge. DNA, on the other hand, possesses many unique and fascinating properties, including its indispensable genetic function, broad biocompatibility, precise molecular recognition capability, tunable multifunctionality, and convenient programmability...
February 10, 2017: Accounts of Chemical Research
https://www.readbyqxmd.com/read/28186691/balancing-microbial-and-mammalian-cell-functions-on-calcium-ion-modified-implant-surfaces
#16
Eduardo Anitua, Ricardo Tejero, Miguel Ángel Pacha-Olivenza, María Coronada Fernández-Calderón, María Delgado-Rastrollo, Mari Mar Zalduendo, María Troya, Ciro Pérez-Giraldo, María Luisa González-Martín
Implant integration is a complex process mediated by the interaction of the implant surface with the surrounding ions, proteins, bacteria, and tissue cells. Although most implants achieve long-term bone-tissue integration, preventing pervasive implant-centered infections demands further advances, particularly in surfaces design. In this work, we analyzed classical microrough implant surfaces (only acid etched, AE; sandblasted then acid etching, SB + AE) and a new calcium-ion-modified implant surface (AE + Ca) in terms of soft- and hard-tissue integration, bacterial adhesion, and biofilm formation...
February 10, 2017: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
https://www.readbyqxmd.com/read/28183287/price-elasticity-of-the-demand-for-soft-drinks-other-sugar-sweetened-beverages-and-energy-dense-food-in-chile
#17
Carlos M Guerrero-López, Mishel Unar-Munguía, M Arantxa Colchero
BACKGROUND: Chile is the second world's largest per capita consumer of caloric beverages. Caloric beverages are associated with overweight, obesity and other chronic diseases. The objective of this study is to estimate the price elasticity of demand for soft drinks, other sugar-sweetened beverages and high-energy dense foods in urban areas in Chile in order to evaluate the potential response of households' consumption to changes in prices. METHODS: We used microdata from the VII Family Budget Survey 2012-2013, which collects information on expenditures made by Chilean urban households on items such as beverages and foods...
February 10, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28176213/development-of-a-new-dissolution-test-method-for-soft-chewable-dosage-forms
#18
Carmen Stomberg, Venkata-Rangarao Kanikanti, Hans-Jürgen Hamann, Peter Kleinebudde
Soft chewable dosage forms are a new approach to improve the compliance of medication for special patient populations. Based on their texture, they are chewed several times before they get swallowed. A suitable dissolution method based on in vivo chewing data was developed. The method covers parts of dissolution within the oral cavity (simulation of chewing) as well as the dissolution of the swallowed bolus within the gastrointestinal tract. Chewing was simulated by the help of a steel tooth assembled to a texture analyzer and wedge gliding on an inclined plane, imitating the occlusal glide...
February 7, 2017: AAPS PharmSciTech
https://www.readbyqxmd.com/read/28169372/copulatory-courtship-by-internal-genitalia-in-bushcrickets
#19
Nadja C Wulff, Thomas van de Kamp, Tomy Dos Santos Rolo, Tilo Baumbach, Gerlind U C Lehmann
Male genital organs are among the fastest evolving morphological structures. However, large parts of the male's genitalia are often hidden inside the female during mating. In several bushcricket species, males bear a pair of sclerotized genital appendices called titillators. By employing synchrotron-based in vivo X-ray cineradiography on mating couples, we were able to visualize titillator movement and spermatophore attachment inside the female. Titillators are inserted and retracted rhythmically. During insertion the titillator processes tap the soft and sensillae-covered dorsal side of the female's flap-like genital fold, which covers the opening of the female's genitalia, without tissue penetration...
February 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28168937/outcomes-of-spatially-fractionated-radiotherapy-grid-for-bulky-soft-tissue-sarcomas-in-a-large-animal-model
#20
Michael W Nolan, Tracy L Gieger, Alexander A Karakashian, Mariana N Nikolova-Karakashian, Lysa P Posner, Donald M Roback, Judith N Rivera, Sha Chang
GRID directs alternating regions of high- and low-dose radiation at tumors. A large animal model mimicking the geometries of human treatments is needed to complement existing rodent systems (eg, microbeam) and clarify the physical and biological attributes of GRID. A pilot study was undertaken in pet dogs with spontaneous soft tissue sarcomas to characterize responses to GRID. Subjects were treated with either 20 Gy (3 dogs) or 25 Gy (3 dogs), delivered using 6 MV X-rays and a commercial GRID collimator. Acute toxicity and tumor responses were assessed 2, 4, and 6 weeks later...
January 1, 2017: Technology in Cancer Research & Treatment
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