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https://www.readbyqxmd.com/read/29053675/transcanalicular-diode-laser-assisted-dacryocystorhinostomy-for-the-treatment-of-primary-acquired-nasolacrimal-duct-obstruction
#1
Joel M Mor, Yongwei Guo, Konrad R Koch, Ludwig M Heindl
Today's gold standard in the treatment of infrasaccal primary acquired nasolacrimal duct obstruction (PANDO) is external dacryocystorhinostomy (DCR), a relatively invasive procedure that can be performed after failure of recanalizing treatments. However, with progress in the field of diode laser technology, new approaches have emerged. Laser-assisted transcanalicular DCR with subsequent bicanalicular silicon intubation is a new option showing great promise as a viable minimally invasive procedure. Under permanent endoscopic visual control from the nasal cavity, a diode laser fiber is inserted into the lacrimal sac and laser energy is applied to create a bony ostium between the lacrimal sac and the nasal cavity...
October 13, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29052746/-rare-cause-of-painful-swelling-in-the-right-groin
#2
M Anheier, K-H Schultheis
No abstract text is available yet for this article.
October 20, 2017: Der Chirurg; Zeitschrift Für Alle Gebiete der Operativen Medizen
https://www.readbyqxmd.com/read/29052506/the-proposed-new-species-cacao-red-vein-virus-and-three-previously-recognized-badnavirus-species-are-associated-with-cacao-swollen-shoot-disease
#3
Nomatter Chingandu, Koffie Kouakou, Romain Aka, George Ameyaw, Osman A Gutierrez, Hans-Werner Herrmann, Judith K Brown
BACKGROUND: Cacao swollen shoot virus (CSSV), Cacao swollen shoot CD virus (CSSCDV), and Cacao swollen shoot Togo A virus (CSSTAV) cause cacao swollen shoot disease (CSSD) in West Africa. During 2000-2003, leaf and shoot-swelling symptoms and rapid tree death were observed in cacao in Cote d'Ivoire and Ghana. Molecular tests showed positive infection in only ~50-60% of symptomatic trees, suggesting the possible emergence of an unknown badnavirus. METHODS: The DNA virome was determined from symptomatic cacao samples using Illumina-Hi Seq, and sequence accuracy was verified by Sanger sequencing...
October 19, 2017: Virology Journal
https://www.readbyqxmd.com/read/29052369/protein-polysaccharide-based-scaffolds-mimicking-native-extracellular-matrix-for-cardiac-tissue-engineering-applications
#4
Elisabetta Rosellini, Yu Shrike Zhang, Bianca Migliori, Niccoletta Barbani, Luigi Lazzeri, Su Ryon Shin, Mehmet Remzi Dokmeci, Maria Grazia Cascone
Tissue engineering has emerged as a viable approach to treat disease or repair damage in tissues and organs. One of the key elements for the success of tissue engineering is the use of a scaffold serving as artificial extracellular matrix (ECM). The ECM hosts the cells and improves their survival, proliferation, and differentiation, enabling the formation of new tissue. Here, we propose the development of a class of protein/polysaccharide-based porous scaffolds for use as ECM substitutes in cardiac tissue engineering...
October 20, 2017: Journal of Biomedical Materials Research. Part A
https://www.readbyqxmd.com/read/29051880/an-exceptional-case-of-suture-granuloma-30-years-following-an-open-repair-of-achilles-tendon-rupture-a-case-report
#5
Ömer Naci Ergin, Mehmet Demirel, Emre Özmen
INTRODUCTION: Rupture of the Achilles' tendon is a common injury occurring particularly in middle-aged men due to sports trauma. Operative treatment is preferred generally due to lower risk of re-rupture. Possible complications of the operation include suture granulomas. Suture granulomas might represent a foreign body reaction, which itself is the end-stage response of the inflammatory wound-healing process to biomaterials. It may occur with both absorbable and non-absorbable suture materials such as silk in our case...
May 2017: Journal of Orthopaedic Case Reports
https://www.readbyqxmd.com/read/29051859/nanoscale-heterogeneity-of-multilayered-si-anodes-with-embedded-nanoparticle-scaffolds-for-li-ion-batteries
#6
Marta Haro, Vidyadhar Singh, Stephan Steinhauer, Evropi Toulkeridou, Panagiotis Grammatikopoulos, Mukhles Sowwan
A new approach on the synthesis of Si anodes for Li-ion batteries is reported, combining advantages of both nanoparticulated and continuous Si films. A multilayered configuration prototype is proposed, comprising amorphous Si arranged in nanostructured, mechanically heterogeneous films, interspersed with Ta nanoparticle scaffolds. Particular structural features such as increased surface roughness, nanogranularity, and porosity are dictated by the nanoparticle scaffolds, boosting the lithiation process due to fast Li diffusion and low electrode polarization...
October 2017: Advanced Science (Weinheim, Baden-Wurttemberg, Germany)
https://www.readbyqxmd.com/read/29051609/liquid-infused-nitric-oxide-releasing-linorel-silicone-for-decreased-fouling-thrombosis-and-infection-of-medical-devices
#7
Marcus J Goudie, Jitendra Pant, Hitesh Handa
Recent reports on liquid-infused materials have shown promise in creating ultra-low fouling surfaces, but are limited in their ability to prevent bacterial proliferation and prevent platelet activation in blood-contacting applications. In this work, a liquid-infused nitric oxide-releasing (LINORel) material is created by incorporating the nitric oxide (NO) donor S-nitroso-acetylpenicillamine (SNAP) and silicone oil in commercial medical grade silicone rubber tubing through a solvent swelling process. This combination provides several key advantages over previous NO-releasing materials, including decreased leaching of NO donor, controlled release of NO, and maintenance of ultra-low fouling property of liquid-infused materials...
October 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29050974/liquefaction-of-ground-tire-rubber-at-low-temperature
#8
Xiangyun Cheng, Pan Song, Xinyu Zhao, Zonglin Peng, Shifeng Wang
Low-temperature liquefaction has been investigated as a novel method for recycling ground tire rubber (GTR) into liquid using an environmentally benign process. The liquefaction was carried out at different temperatures (140, 160 and 180 °C) over variable time ranges (2-24 h) by blending the GTR with aromatic oil in a range from 0 to 100 parts per hundred rubber (phr). The liquefied GTR was separated into sol (the soluble fraction of rubber which can be extracted with toluene) and gel fractions (the solid fraction obtained after extraction) to evaluate the reclaiming efficiency...
October 16, 2017: Waste Management
https://www.readbyqxmd.com/read/29050598/improving-molar-mass-analysis-of-cellulose-samples-with-limited-solubility
#9
Stephan Silbermann, Christian Weilach, Gerhard Kliba, Karin Fackler, Antje Potthast
Fully dissolved cellulose samples are a requirement for reliable size exclusion chromatography (SEC). Although most of the standard dissolving pulps can be completely dissolved in the N,N-dimethylacetamide/lithium chloride (DMAc/LiCl) solvent system, some cellulose samples (e.g., regenerated cellulose fibers) have poor solubility and therefore have a limited access to molar mass measurements. For improving the latter, different activation steps have been developed. In order to obtain complete solutions for subsequent SEC analysis, the scope of this study was to further improve established methods by elucidating the major influential factors of sample preparation...
December 15, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/29050585/non-cytotoxic-hybrid-bioscaffolds-of-chitosan-silica-sol-gel-synthesis-characterization-and-proposed-application
#10
Athit Pipattanawarothai, Chomchai Suksai, Klaokwan Srisook, Thanida Trakulsujaritchok
Biohybrid chitosan-silica scaffolds were synthesized through the sol-gel and the freeze drying processes. Hydrolysis and condensation of chitosan with tetraethylorthosilicate (TEOS) in the presence of 3-isocyanatopropyl triethoxysilane (ICPTES) were successfully carried out. Results obtained from FTIR, swelling test and pyrolysis confirmed that the hybrid scaffolds containing covalent coupling between the organic and inorganic networks were formed with high crosslink density of SiOSi bridging and could be classified as the class II material...
December 15, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/29050528/uv-assisted-3d-bioprinting-of-nano-reinforced-hybrid-cardiac-patch-for-myocardial-tissue-engineering
#11
Mohammad Izadifar, Dean Chapman, Paul Babyn, Xiongbiao Chen, Michael E Kelly
Biofabrication of cell supportive cardiac patches that can be directly implanted on myocardial infarct is a potential solution for myocardial infarction repair. Ideally, cardiac patches should be able to mimic myocardium extracellular matrix for rapid integration with the host tissue, raising the need to develop cardiac constructs with complex features. In particular, cardiac patches should be electrically conductive, mechanically robust and elastic, biologically active and pre-vascularized.. In this study, we aim to biofabricate a nano-reinforced hybrid cardiac patch laden with human coronary artery endothelial cells (HCAECs) with improved electrical, mechanical and biological behavior...
October 19, 2017: Tissue Engineering. Part C, Methods
https://www.readbyqxmd.com/read/29049236/lipoma-of-the-middle-finger-a-case-report-and-review-of-literature
#12
Zhongqing Hu, Zhenshuang Yue, Yanghua Tang, Yi Zhu
RATIONALE: Lipomas originated from fingers are rare and the dissection is necessary when the lipomas limit the finger movement or cause pain. PATIENT CONCERNS: A 57-year-old male was admitted to our department due to a painless swelling on the volar side of the middle finger of the right hand. The flexion movement of the distal interphalangeal joint was limited. DIAGNOSES: Imaging studies and open biopsy confirmed that it was a finger lipoma...
October 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29049202/mandibular-gorham-stout-disease-a-case-report-and-literature-review
#13
Min Liu, Weiwei Liu, Chunyan Qiao, Bing Han
RATIONALE: Gorham-Stout disease (GSD) is characterized by aggressive bone resorption, proliferation of vascular or lymphatic vessels, and soft-tissue swelling. Bones that initially appear normal start to resorb, partially or completely. However, the etiology of GSD is unknown. PATIENT CONCERNS: A 29-year-old man with a chief complaint of toothache and mobility in the lower right mandible for the previous 1 year. DIAGNOSES: Gorham-Stout disease (GSD)...
October 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29049099/spontaneous-rupture-of-lacrimal-gland-pleomorphic-adenoma-pivotal-role-in-masquerading-orbital-cellulitis
#14
Farzad Pakdel, Niloofar Pirmarzdashti, Sasan Soltani, Zohreh Nozarian, Fahimeh Asadi Amoli, Abolfazl Kassaee
The authors aim to report a 68-year-old patient presenting with acute swelling and redness of orbital area diagnosed initially as orbital cellulitis. Surgical excision was decided based on clinical and imaging findings with the diagnosis of pleomorphic adenoma of the lacrimal gland. Lacrimal gland pleomorphic adenoma usually presents with painless gradual swelling of upper eyelid. In an exceptionally rare circumstance, this case showed acute orbital inflammation, and imaging findings of orbital inflammation mostly focused around the cystic space of the lacrimal gland tumor...
October 14, 2017: Ophthalmic Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/29049026/dipole-switch-induced-modification-of-the-emissive-response-of-carbon-nanotubes
#15
M Glaeske, P Bluemmel, S Juergensen, A Setaro, S Reich
The interaction of carbon nanotubes with the molecular dipole switch spiropyran is expected to affect the optical response of the tubes. Until now, the need of anchor groups to immobilize the switches on the tubes has hindered the experimental observation of the effects of switching on the emission behavior of the tubes. Here we present spiropyran-carbon nanotube complexes obtained by micelle swelling. This method does not require any anchor nor sophisticated chemistry to warrant close tube-switch proximity...
October 19, 2017: Journal of Physics. Condensed Matter: An Institute of Physics Journal
https://www.readbyqxmd.com/read/29047806/waveform-width-of-a-satellite-laser-altimeter-illuminating-on-the-sea-surface
#16
Yue Ma, Song Li, Wenhao Zhang, Zhiyu Zhang, Hui Zhou, Ma Xin
The echo width is one of the most essential parameters of waveforms, which can be used to evaluate the ranging performance of a laser altimeter or retrieve wind speeds when laser pulses illuminate on the sea surface. The classical expression of waveform widths is not suitable for a current satellite laser altimeter because only the waves on the sea with smaller wavelengths can be covered by a satellite laser altimeter due to its small footprint. A new expression is derived by dividing the broadening effect of echo widths into the wind wave with small wavelengths and the swell cause with large wavelengths...
August 1, 2017: Applied Optics
https://www.readbyqxmd.com/read/29046755/some-neck-swellings-are-serious-a-case-of-lemierre-s-syndrome
#17
Ali Raza Ghani, Mohsin Hamid, Ahsan Raza, Rizwan Naseer, Joseph Crocetti
Lemierre's syndrome also termed post-anginal septicemia, is a disease characterized by internal jugular septic thrombophlebitis leading to Fusobacterium septicemia with multiple metastatic foci following an oropharyngeal infection. Diagnosis and management is challenging and can result in fatal consequences due to potential multisystem involvement and multiple complications. We describe here a case of Lemierre's syndrome with multifocal pneumonia, acute renal failure and protracted course of illness over forty days with successful recovery...
October 2017: Journal of Community Hospital Internal Medicine Perspectives
https://www.readbyqxmd.com/read/29046163/application-of-hydrogels-in-cartilage-tissue-engineering
#18
Ximu Zhang, Wei Zhang, Maobin Yang
Cartilage has limited ability for self-repairing, prompting the search for cartilage substitutes that can repair cartilage defects. Hydrogels have attracted attention as cartilage substitutes, since their mechanical properties, swelling ability and lubricating behavior are similar to extracellular matrix of articular cartilage. Hydrogels can be of natural, synthetic or hybrid origin, and hydrogels can encapsulate stem cells and/or be loaded with growth factors to promote cell differentiation into a chondrogenic phenotype...
October 17, 2017: Current Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/29044857/direct-synthesis-of-polymer-nanotubes-via-aqueous-dispersion-polymerization-of-cyclodextrin-styrene-complex
#19
Xi Chen, Lei Liu, Meng Huo, Min Zeng, Liao Peng, Anchao Feng, Xiaosong Wang, Jinying Yuan
We report a one-step synthesis of nanotubes by RAFT dispersion polymerization of cyclodextrin/styrene (CD/St) complexes directly in water. The resulted amphiphilic PEG-b-PS diblock copolymers self-assemble in situ into nanoparticles with various morphologies. Spheres, worms, lamellae, and nanotubes were controllably obtained. Because of the complexation, the swelling degree of polystyrene (PS) blocks by free St is limited, resulting limited mobility of PS chains. Consequently, kinetically trapped lamellae and nanotubes were obtained instead of spherical vesicles...
October 17, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/29044685/involvement-of-nf-%C3%AE%C2%BAb-in-the-upregulation-of-cystathionine-%C3%AE-lyase-a-hydrogen-sulfide-forming-enzyme-and-bladder-pain-accompanying-cystitis-in-mice
#20
Tomoka Ozaki, Maho Tsubota, Fumiko Sekiguchi, Atsufumi Kawabata
Hydrogen sulfide (H2 S) is generated from L-cysteine by multiple enzymes including cystathionine-γ-lyase (CSE), and promotes nociception by targeting multiple molecules such as Cav 3.2 T-type Ca(2+) channels. Bladder pain accompanying cyclophosphamide (CPA)-induced cystitis in mice has been shown to involve the functional upregulation of the CSE/H2 S/Cav 3.2 pathway. Therefore, we investigated whether NF-κB, as an upstream signal of the CSE/H2 S system, contributes to bladder pain in mice with CPA-induced cystitis...
October 17, 2017: Clinical and Experimental Pharmacology & Physiology
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