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https://www.readbyqxmd.com/read/28749543/new-multi-responsive-chromic-soft-materials-dynamic-interconversion-of-short-2-7-dicyanomethylenecarbazole-based-biradicaloid-and-corresponding-cyclophane-tetramer
#1
Maria Carmen Ruiz Delgado, Deliang Wang, Cristina Capel Ferrón, Jie Li, Sergio Gámez-Valenzuela, Rocio Ponce Ortiz, Juan T López Navarrete, Víctor Hernández Jolin, Xiaodi Yang, Miriam Peña Álvarez, Valentín García Baonza, František Hartl, Hongxiang Li
Herein, we report a quinodimethane-type molecule, 2,7-dicyanomethylene-9-(2-ethylhexyl)carbazole (1), one of the shortest π-conjugated biradicaloids reported to be stable in solution at ambient. This carbazole-based quinoidal precursor is able to form a macrocyclic -bonded tetramer (2). The resolved single crystal X-ray structure of tetramer 2 shows that four molecules of 1 are linked together through four long (CN)2C-C(CN)2 bonds (1.631 Å) resulting from coupling of the unpaired electrons in biradicaloid 1...
July 27, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/28749529/effect-and-acceptance-of-silver-diamine-fluoride-treatment-on-dental-caries-in-primary-teeth
#2
Jennifer Clemens, Jaana Gold, Jeffrey Chaffin
OBJECTIVES: Silver diamine fluoride (SDF) treatment has been identified as a potential solution to address the dental public health issues of untreated dental caries and insufficient access to care. The current study assessed the effectiveness of 38 percent SDF in arresting active dental caries lesions and in reducing or preventing associated dental pain and infections in young, at-risk children. METHODS: We enrolled 32 children aged 2-5 years with 118 active caries lesions in primary teeth from a community dental clinic in Oregon...
July 27, 2017: Journal of Public Health Dentistry
https://www.readbyqxmd.com/read/28749388/playing-soft-with-tough-players-controlling-adverse-drug-effects-while-tuning-antiepileptic-drugs-epilepsy-the-person
#3
Dejan Stevanovic
No abstract text is available yet for this article.
March 2017: Indian Journal of Medical Research
https://www.readbyqxmd.com/read/28749258/coelomic-teratoma-in-a-blue-and-yellow-macaw-ara-ararauna
#4
Letícia B de Oliveira, Willian H M Santos, Alessandra V de Araújo, Anelise C Nepomuceno, Roselene Ecco
A 2-mo-old, female blue-and-yellow macaw (Ara ararauna) presented with severe abdominal distension, pain, and respiratory distress. Ultrasonographic examination detected a heterogeneous mass with multiple anechoic areas, compatible with a multilocular cyst, occupying most of the coelomic cavity. Postmortem examination revealed a mass of 12.0 × 8.5 × 5.0 cm, which had an irregular surface and was connected by a pedicle to the ileum. This mass compressed and displaced the liver, proventriculus, gizzard, and intestines cranially to the left...
June 2017: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
https://www.readbyqxmd.com/read/28749176/quantifying-potential-reduction-in-contrast-dose-with-monoenergetic-images-synthesized-from-duallayer-detector-spectral-ct
#5
Derek S Tsang, Thomas E Merchant, Sophie E Merchant, Hanna Smith, Yoad Yagil, Chia-Ho Hua
OBJECTIVES: To estimate the potential dose reduction in iodinated contrast when interpreting monoenergetic images from spectral CT. METHODS: 51 pediatric patients received contrast-enhanced CT simulation for radiation therapy using a single-source, dual-layer detector spectral CT. The contrast-to-noise ratios (CNR) of blood vessels were measured relative to surrounding soft tissue. CNRs on monoenergetic 40-70 keV images were compared with polychromatic 120 kVp images...
July 27, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/28749026/maxillary-unicystic-ameloblastoma-in-a-6-week-old-filly-evaluated-with-computed-tomography
#6
H L Smith, A J Rosenblatt, W W Suen, H Owen, B J Ahern
CASE REPORT: A 6-week-old Thoroughbred filly was presented for evaluation of an expansile mass overlying the right nasal passage and causing respiratory stertor. On skull radiographs, there was a loculated, soft tissue-opaque mass identified dorsal to the right upper premolars and effacing the right nasal cavity. Computed tomography (CT) revealed a locally extensive mass with relatively benign characteristics located centrally on the tooth root apices of the deciduous second premolar (506)...
August 2017: Australian Veterinary Journal
https://www.readbyqxmd.com/read/28748772/epidemiology-and-hospital-readmission-associated-with-complications-of-staphylococcus-aureus-bacteremia-in-pediatrics-over-a-25-year-period
#7
J LE, Q Dam, T Tran, A Nguyen, F C Adler-Shohet, S Kim, K Schmidt, J M Lieberman, J S Bradley
We sought to comprehensively assess the prevalence and outcomes of complications associated with Staphylococcus aureus bacteremia (SAB) in children. Secondarily, prevalence of methicillin resistance and outcomes of complications from methicillin-resistant S. aureus (MRSA) vs. methicillin-susceptible S. aureus SAB were assessed. This is a single-center cross-sectional study of 376 patients ⩽18 years old with SAB in 1990-2014. Overall, 197 (52%) patients experienced complications, the most common being osteomyelitis (33%), skin and soft tissue infection (31%), and pneumonia (25%)...
July 27, 2017: Epidemiology and Infection
https://www.readbyqxmd.com/read/28748609/effectiveness-of-surgical-treatment-of-severe-macrocheilia-in-a-patient-with-orofacial-granulomatosis
#8
C Vassallo, N Rivetti, M Merlino, G Borroni, V Brazzelli
Orofacial granulomatosis (OFG) is the term given to a group of diseases characterized by the presence of non-necrotizing granulomatous inflammation affecting the soft tissues of the orofacial region. Treatment of OFG is often challenging and unsatisfactory. We report on a 32-year-old man with a 2-year history of oedema and swelling of the upper lip without systemic symptoms. The history, clinical features and histopathological findings led to the diagnosis of cheilitis granulomatosa (CG), a disease included in the spectrum of OFG...
July 27, 2017: Clinical and Experimental Dermatology
https://www.readbyqxmd.com/read/28748521/clinical-outcome-of-alveolar-ridge-augmentation-with-individualized-cad-cam-produced-titanium-mesh
#9
K Sagheb, E Schiegnitz, M Moergel, C Walter, B Al-Nawas, W Wagner
BACKGROUND: The augmentation of the jaw has been and continues to be a sophisticated therapy in implantology. Modern CAD-CAM technologies lead to revival of old and established augmentation techniques such as the use of titanium mesh (TM) for bone augmentation. The aim of this retrospective study was to evaluate the clinical outcome of an individualized CAD-CAM-produced TM based on the CT/DVT-DICOM data of the patients for the first time. METHODS: In 17 patients, 21 different regions were augmented with an individualized CAD-CAM-produced TM (Yxoss CBR®, Filderstadt, Germany)...
December 2017: International Journal of Implant Dentistry
https://www.readbyqxmd.com/read/28748489/hamstring-autograft-maturation-is-superior-to-tibialis-allograft-following-anatomic-single-bundle-anterior-cruciate-ligament-reconstruction
#10
Sang-Gyun Kim, Soo-Hyun Kim, Jae-Gyoon Kim, Ki-Mo Jang, Hong-Chul Lim, Ji-Hoon Bae
PURPOSE: Using second-look arthroscopy, graft maturation was investigated and compared between hamstring (HA) autografts and tibialis anterior (TA) allografts after anatomic single-bundle anterior cruciate ligament reconstruction (ACLR). METHODS: Fifty-six patients who underwent second-look arthroscopy after anatomic single-bundle ACLR with either HA autografts (26, HA group) or TA allografts (30, TA group) from 2007 to 2016 were retrospectively reviewed. Graft maturation on second-look arthroscopy was evaluated in terms of four parameters: graft integrity (tear), synovial coverage, graft tension, and graft vascularization...
July 26, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28748443/adherence-to-guidelines-for-adult-non-gist-soft-tissue-sarcoma-in-the-netherlands-a-plea-for-dedicated-sarcoma-centers
#11
Harald J Hoekstra, Rick L M Haas, Cornelis Verhoef, Albert J H Suurmeijer, Carla S P van Rijswijk, Ben G H Bongers, Winette T van der Graaf, Vincent K Y Ho
INTRODUCTION: Optimal management of soft tissue sarcoma (STS) remains a challenge. A nationwide survey assessed the quality of STS care in the Netherlands, thereby aiming to identify potentialities for improvement through more centralized disease management. METHODS: From the Netherlands Cancer Registry (NCR), data were obtained on 3317 adult STS patients (excluding gastrointestinal stromal tumor, GIST) diagnosed in 2006-2011. Logistic regression models were employed to compare outcomes on selected clinical indicators reflecting prevailing STS guidelines between high-volume (≥10 resections annually) and low-volume (<10 resections) hospitals, between academic and general hospitals, and between sarcoma research centers and other hospitals, adjusted for case mix...
July 26, 2017: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/28748349/desmoplastic-small-round-cell-tumor-evaluation-of-reverse-transcription-polymerase-chain-reaction-and-fluorescence-in-situ-hybridization-as-ancillary-molecular-diagnostic-techniques
#12
Mustafa Mohamed, David Gonzalez, Karen J Fritchie, John Swansbury, Dorte Wren, Charlotte Benson, Robin L Jones, Cyril Fisher, Khin Thway
Desmoplastic small round cell tumor (DSRCT) is a rare, biologically aggressive soft tissue neoplasm of uncertain differentiation, most often arising in the abdominal and pelvic cavities of adolescents and young adults with a striking male predominance. Histologically, it is characterized by islands of uniform small round cells in prominent desmoplastic stroma, and it has a polyimmunophenotypic profile, typically expressing WT1 and cytokeratin, desmin, and neural/neuroendocrine differentiation markers to varying degrees...
July 26, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/28748031/antibiofilm-peptides-against-oral-biofilms
#13
Zhejun Wang, Ya Shen, Markus Haapasalo
The oral cavity is a major entry point for bacteria and other microorganisms. Oral biofilms are formed by mixed communities of microorganisms embedded in an exopolysaccharide matrix. Biofilms forming on dental hard or soft tissue are the major cause of caries and endodontic and periodontal disease. Human oral biofilms exhibit high resistance to antimicrobial agents. Antibiofilm peptides constitute a diverse class of host-defense molecules that act to combat invasion and infection with biofilms. Different in vitro and in vivo biofilm models with quantitative analysis have been established to provide predictable platforms for the evaluation of the antibiofilm effect of oral antibiofilm peptides...
2017: Journal of Oral Microbiology
https://www.readbyqxmd.com/read/28747856/tunable-gas-sensing-gels-by-cooperative-assembly
#14
Abid Hussain, Ana T S Semeano, Susana I C J Palma, Ana S Pina, José Almeida, Bárbara F Medrado, Ana C C S Pádua, Ana L Carvalho, Madalena Dionísio, Rosamaria W C Li, Hugo Gamboa, Rein V Ulijn, Jonas Gruber, Ana C A Roque
The cooperative assembly of biopolymers and small molecules can yield functional materials with precisely tunable properties. Here, the fabrication, characterization, and use of multicomponent hybrid gels as selective gas sensors are reported. The gels are composed of liquid crystal droplets self-assembled in the presence of ionic liquids, which further coassemble with biopolymers to form stable matrices. Each individual component can be varied and acts cooperatively to tune gels' structure and function. The unique molecular environment in hybrid gels is explored for supramolecular recognition of volatile compounds...
July 19, 2017: Advanced Functional Materials
https://www.readbyqxmd.com/read/28747661/into-the-dynamics-of-a-supramolecular-polymer-at-submolecular-resolution
#15
Davide Bochicchio, Matteo Salvalaglio, Giovanni M Pavan
To rationally design supramolecular polymers capable of self-healing or reconfiguring their structure in a dynamically controlled way, it is imperative to gain access into the intrinsic dynamics of the supramolecular polymer (dynamic exchange of monomers) while maintaining a high-resolution description of the monomer structure. But this is prohibitively difficult at experimental level. Here we show atomistic, coarse-grained modelling combined with advanced simulation approaches to characterize the molecular mechanisms and relative kinetics of monomer exchange in structural variants of a synthetic supramolecular polymer in different conditions...
July 27, 2017: Nature Communications
https://www.readbyqxmd.com/read/28747598/the-effect-of-crude-drugs-on-the-angiogenic-property-and-dynamic-viscoelasticity-of-pema-based-soft-polymer-materials
#16
Wei-Qi Wang, Guang Hong, Jian-Min Han, Hiroshi Murata, Keiichi Sasaki
This study aimed to determine the effect of crude drugs on the dynamic viscoelasticity and angiogenic property of soft polymer materials, in vitro. Two kinds of polyethyl methacrylates, and crude drugs (Astragalus membranaceus Bunge [HQ] and Salvia miltiorrhiza Bunge [DS]) were used in their powdered forms. And, acetyl tributyl citrate and ethyl alcohol were used in the liquid form. The dynamic viscoelasticity of each specimen was measured after 0, 1, 3, 7, 14 and 28 days of immersion in distilled water. The CellPlayer angiogenesis PrimeKit assay was used to test angiogenesis...
July 26, 2017: Dental Materials Journal
https://www.readbyqxmd.com/read/28747517/a-soft-robotic-exosuit-improves-walking-in-patients-after-stroke
#17
Louis N Awad, Jaehyun Bae, Kathleen O'Donnell, Stefano M M De Rossi, Kathryn Hendron, Lizeth H Sloot, Pawel Kudzia, Stephen Allen, Kenneth G Holt, Terry D Ellis, Conor J Walsh
Stroke-induced hemiparetic gait is characteristically slow and metabolically expensive. Passive assistive devices such as ankle-foot orthoses are often prescribed to increase function and independence after stroke; however, walking remains highly impaired despite-and perhaps because of-their use. We sought to determine whether a soft wearable robot (exosuit) designed to supplement the paretic limb's residual ability to generate both forward propulsion and ground clearance could facilitate more normal walking after stroke...
July 26, 2017: Science Translational Medicine
https://www.readbyqxmd.com/read/28747211/fluorodeoxyglucose-positron-emission-tomography-computed-tomography-imaging-features-of-colloid-adenocarcinoma-of-the-lung-a-case-report
#18
ZhenGuang Wang, MingMing Yu, YueHua Chen, Yan Kong
BACKGROUND: Colloid adenocarcinoma of the lung is a rare subtype of variants of invasive adenocarcinomas. We report the appearance of this unusual entity on (18)F-fluorodeoxyglucose positron emission tomography/computed tomography. CASE PRESENTATION: A 60-year-old man of Chinese Han nationality coughed with a little white sputum for 1 month. Chest computed tomography showed multiple bilateral subpleural nodules and plaques accompanied by air bronchograms, which were most concentrated in the lower lobe of his right lung...
July 27, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/28747182/recurrent-primary-mediastinal-giant-cell-tumor-of-soft-tissue-with-radiological-findings-a-rare-case-report-and-literature-review
#19
Qiongjie Hu, Jian Peng, Liming Xia
BACKGROUND: Giant cell tumor of soft tissue (GCT-ST), which histologically resembles GCT of bone, is a rare tumor. Usually, it is located in the lower extremities and trunk. GCT-ST, occurring in mediastinum, is extremely rare. CASE PRESENTATION: We encountered an 18-year-old Chinese woman who had mild dull pain on the left side of back. The following chest computed tomography (CT) showed a heterogeneous mass deeply situated in the posterior mediastinum with compression of the lung and invasion of the adjacent rib...
July 26, 2017: World Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28747130/body-composition-predictors-of-therapy-response-in-patients-with-primary-extremity-soft-tissue-sarcomas
#20
Karen De Amorim Bernstein, Stijn A Bos, Joyce Veld, Santiago A Lozano-Calderon, Martin Torriani, Miriam A Bredella
Background Recent studies have suggested that the quantity and quality of adipose tissue and muscle, assessed on non-contrast computed tomography (CT), may serve as imaging biomarkers of survival in patients with and without neoplasms. Purpose To assess body composition measures that could serve as predictors of therapy response in patients with extremity soft tissue sarcomas treated with radiation therapy and surgery. Material and Methods The study was IRB-approved. Sixty patients had a history of extremity soft tissue sarcoma and underwent FDG-PET/CT prior to radiation therapy and surgical resection...
January 1, 2017: Acta Radiologica
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