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https://www.readbyqxmd.com/read/28545253/encapsulation-of-the-antioxidant-r-%C3%AE-lipoic-acid-in-permethylated-%C3%AE-and-%C3%AE-cyclodextrins-thermal-and-x-ray-structural-characterization-of-the-1-1-inclusion-complexes
#1
Mino R Caira, Susan A Bourne, Buntubonke Mzondo
The naturally occurring compound α-lipoic acid (ALA) is implicated in manifold critical biological roles and its potent antioxidant properties and potential for treatment of various diseases have led to its widespread use as a dietary supplement. However, shortcomings of poor aqueous solubility and low thermal stability have hampered its development as a medicinal agent, prompting the use of cyclodextrins (CDs) to address these problems. The paucity of published structural data on the nature of the interactions between ALA and CDs motivated the present study, which describes the synthesis and X-ray structural elucidation of crystalline inclusion complexes between the biologically relevant R-(+)-α-lipoic acid (RALA) and the host molecules permethylated α-CD (TMA) and permethylated β-CD (TMB)...
May 23, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28545246/increasing-the-use-of-urban-greenways-in-developing-countries-a-case-study-on-wutong-greenway-in-shenzhen-china
#2
Yiyong Chen, Weiying Gu, Tao Liu, Lei Yuan, Mali Zeng
Given the benefits of urban greenways on the health and well-being of urban populations, the increased use of urban greenways has garnered increasing attention. Studies on urban greenways, however, have been mostly conducted in Western countries, whereas there is limited knowledge on greenway use in urban areas in developing countries. To address this shortcoming, the present study selected Wutong Greenway in Shenzhen, China, as a case study and focused on the use pattern and factors that influence the frequency and duration of urban greenway use in developing countries...
May 23, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28545152/short-term-changes-in-the-health-state-of-children-with-group-b-meningococcal-disease-a-prospective-national-cohort-study
#3
Iain T R Kennedy, Albert J van Hoek, Sonia Ribeiro, Hannah Christensen, W John Edmunds, Mary E Ramsay, Shamez N Ladhani
OBJECTIVES: The short-term impact of childhood invasive meningococcal disease (IMD) on quality-of-life (QoL) remains largely unquantified. This study aimed to quantify QoL loss at the point when illness was at its worst, and assess health state recovery in the months following illness. METHODS: Parents of children aged <16 years with laboratory-confirmed meningococcal group B (MenB) disease in England, with onset dates from November 2012 to May 2013 were asked to complete a short questionnaire, which included EQ-5DY, a version of EQ-5D for 8-15 year-olds...
2017: PloS One
https://www.readbyqxmd.com/read/28545116/n-terminal-pro-b-type-natriuretic-peptide-in-amniotic-fluid-of-fetuses-with-known-or-suspected-cardiac-load
#4
Christina Leufgen, Ulrich Gembruch, Birgit Stoffel-Wagner, Rolf Fimmers, Waltraut M Merz
BACKGROUND: Myocardial dysfunction occurs in a variety of fetal disorders. Findings from adult cardiology, where n-terminal pro-B-type natriuretic peptide (nt-proBNP) is an established biomarker of left ventricular dysfunction have been extended to fetal life. Since fetal blood sampling is technically challenging we investigated amniotic fluid nt-proBNP for its suitability to diagnose fetal myocardial dysfunction. METHODS: Ultrasound, Doppler examination and echocardiography was applied to classify cases and controls...
2017: PloS One
https://www.readbyqxmd.com/read/28545085/splicing-factor-sf3b1k700e-mutant-dysregulates-erythroid-differentiation-via-aberrant-alternative-splicing-of-transcription-factor-tal1
#5
Shuiling Jin, Hairui Su, Ngoc-Tung Tran, Jing Song, Sydney S Lu, Ying Li, Suming Huang, Omar Abdel-Wahab, Yanyan Liu, Xinyang Zhao
More than 60% of myeloid dysplasia syndrome (MDS) contains mutations in genes encoding for splicing factors such as SF3B1, U2AF, SRSF2 and ZRSR2. Mutations in SF3B1 are associated with 80% cases of refractory anemia with ring sideroblast (RARS), a subtype of MDS. SF3B1K700E is the most frequently mutated site among mutations on SF3B1. Yet the molecular mechanisms on how mutations of splicing factors lead to defective erythropoiesis are not clear. SF3B1K700E mutant binds to an RNA binding protein, RBM15, stronger than the wild type SF3B1 protein in co-immunoprecipitation assays...
2017: PloS One
https://www.readbyqxmd.com/read/28545030/mitochondrial-dna-sequencing-and-large-scale-genotyping-identifies-mt-nd4-gene-mutation-m-11696g-a-associated-with-idiopathic-oligoasthenospermia
#6
Juan Ji, Miaofei Xu, Zhenyao Huang, Lei Li, Hongxiang Zheng, Shuping Yang, Shilin Li, Li Jin, Xiufeng Ling, Yankai Xia, Chuncheng Lu, Xinru Wang
Genetic variants of mitochondrial DNA (mtDNA) were implicated to be associated with male infertility. Our previous whole mitochondrial genome sequencing and association study has identified two susceptibility mtDNA variants for oligoasthenospermia in Han Chinese men. In this study, we tested promising associations in an extended validation using 670 idiopathic oligoasthenospermia cases and 793 healthy controls to identify additional risk variants. We found that the genetic variant of m.11696G>A showed significantly higher frequency in the case group than that in the control group (odds ratio (OR) 2...
May 8, 2017: Oncotarget
https://www.readbyqxmd.com/read/28544837/candida-endocarditis-a-review-of-twelve-episodes-in-eleven-patients
#7
Tatjana Lejko Zupanc, Mateja Logar
BACKGROUND: Candida spp. are a rare but important cause of infective endocarditis. The study aim was to describe pertinent clinical data on consecutive patients with Candida endocarditis treated at a tertiary referral center between 1984 and 2013. METHODS: A retrospective search of the authors' endocarditis database was performed and the medical records of patients with confirmed Candida endocarditis were reviewed. Important data relating to demographics, medical history and clinical data, as well as information on outcome and treatment, were extracted...
January 2017: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/28544597/metastasis-of-soft-tissue-sarcomas-in-lymph-node-a-cytomorphological-study
#8
Jahnavi Gandhi, Shailee Mehta, Trupti Patel, Amisha Gami, Majal Shah, Dhaval Jetly
BACKGROUND: Soft-tissue sarcoma (STS) rarely metastasizes to lymph node compared to carcinoma. Fine-needle aspiration cytology (FNAC) carries a pivotal role in diagnosis of metastatic tumor to lymph node. This study highlights the role of FNAC in diagnosis of STS metastasis to lymph node. METHOD: A retrospective study over a period by 4 years carried out. FNAC of enlarged lymph node was performed in patients with STS. Cytology smears were examined in conjunction with clinical details...
May 24, 2017: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/28544576/atypical-adenoma-of-the-thyroid-diagnosed-as-anaplastic-cancer-by-cytopathology
#9
Hiromitsu Hatakeyama, Kimiko Hoshino, Kenji Mizoguchi, Takayoshi Suzuki, Kanako C Hatanaka, Yukie Yamaya, Satoshi Kano, Takatsugu Mizumachi, Akihiro Homma
Atypical adenoma of the thyroid is a rare form of tumor, and its accurate diagnosis prior to surgical resection is difficult as the histological and pathological morphologies are very similar to those of anaplastic thyroid carcinoma (ATC), and its anaplastic transformation remains to be elucidated. We reported a case of a 75-year-old female with a thyroid isthmus nodule diagnosed repeatedly by FNAC as anaplastic carcinoma. Both the first and second FNAC specimen slides showed a large number of scattered or aggregated atypical cells consisting of large, pleomorphic nuclei with irregular membranes, chromatin clumps and prominent nucleoli...
May 22, 2017: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/28544573/spindle-cell-subtype-of-pulmonary-clear-cell-tumor-with-prominent-calcification-and-malignant-potential
#10
Yinghua Song, Fangfang Chen, Caiqing Zhang, Xiaoyan Lin
Perivascular epithelioid cell tumor of the lung, also known as clear cell "sugar" tumor, is a rare benign tumor arising from perivascular epithelioid cells. Herein, we present a case of spindle cell subtype of pulmonary perivascular epithelioid cell tumor with prominent calcification and malignant potential in a 49-year-old woman. Histologically, the striking feature of this lesion was attributed to the presence of spindle cells arranged in a diffuse pattern, which is a pitfall for diagnosis. However, some of the lesion contained polygonal tumor cells with clear abundant cytoplasm surrounded by thin-walled vascular spaces...
May 25, 2017: Thoracic Cancer
https://www.readbyqxmd.com/read/28544560/fatal-intoxication-by-5f-adb-and-diphenidine-detection-quantification-and-investigation-of-their-main-metabolic-pathways-in-human-by-lc-ms-ms-and-lc-q-tofms
#11
Maiko Kusano, Kei Zaitsua, Kentaro Taki, Kazuaki Hisatsune, Jun'ichi Nakajima, Takako Moriyasu, Tomomi Asano, Yumi Hayashi, Hitoshi Tsuchihashi, Akira Ishii
Despite the implementation of the new blanket scheduling system in 2013, new psychoactive substance (NPS) abuse remains a serious social concern in Japan. We present a fatal intoxication case involving 5F-ADB (methyl 2-[1-(5-fluoropentyl)-1H-indazole-3-carboxamido]-3,3-dimethylbutanoate) and diphenidine. Postmortem blood screening by liquid chromatography/quadrupole time-of-flight mass spectrometry (LC/Q-TOFMS) in the information dependent acquisition (IDA) mode only detected diphenidine. Further urinary screening using an in-house database containing new NPS and metabolites detected not only diphenidine but also possible 5F-ADB metabolites; subsequent targeted screening by LC/tandem mass spectrometry (LC/MS/MS) allowed for the detection of very low level of unchanged 5F-ADB in postmortem heart blood...
May 21, 2017: Drug Testing and Analysis
https://www.readbyqxmd.com/read/28544553/dna-barcoding-meets-nanotechnology-development-of-a-smart-universal-tool-for-food-authentication
#12
Paola Valentini, Andrea Galimberti, Valerio Mezzasalma, Fabrizio De Mattia, Maurizio Casiraghi, Massimo Labra, Pier Paolo Pompa
Food trade globalization and the growing demand for selected food varieties have led to the intensification of adulteration cases, especially in the form of species substitution/mixing with cheaper taxa. This phenomenon acquired huge economic impact and sometimes even public health implications. DNA barcoding represents a well-proven molecular tool to assess the authenticity of food items, although its diffusion is hampered by analytical constraints and timeframes that are often prohibitive for food market...
May 23, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28544468/analysis-of-the-patients-with-simultaneous-bilateral-spontaneous-pneumothorax
#13
Tevfik Ilker Akcam, Onder Kavurmaci, Ayse Gul Ergonul, Sercan Aydin, Kutsal Turhan, Alpaslan Cakan, Ufuk Cagirici
BACKGROUND: Simultaneous bilateral spontaneous pneumothorax (SBSP) is an uncommon condition with limited data on its incidence in the literature. In this study, we aimed to describe the bilaterality in both primary and secondary spontaneous pneumothorax cases, and the clinical approach in simultaneous disease and prognosis of these patients. METHODS: A total of 16 patients who were followed with the diagnosis of bilateral spontaneous pneumothorax between January 2005 and January 2017 were retrospectively analyzed...
May 20, 2017: Clinical Respiratory Journal
https://www.readbyqxmd.com/read/28544099/genetic-signatures-coupled-with-lineage-shift-characterize-endemic-evolution-of-dengue-virus-serotype-2-during-2015-outbreak-in-delhi-india
#14
Manish Chandra Choudhary, Ekta Gupta, Shvetank Sharma, Nadeem Hasnain, Pragya Agarwala
OBJECTIVE: In 2015 New Delhi witnessed a massive outbreak of Dengue virus (DENV) resulting in high morbidity and mortality. We report the molecular characterization of the dominant circulating DENV strain to understand its evolution and dispersal. MATERIALS AND METHODS: DENV infections were diagnosed by detection of IgM/NS1 antigen and serotyping was performed by C-PrM PCR. Envelope gene was amplified and variation(s) in envelope gene were analyzed. Phylogenetic tree construction, time-based phylogeny and origin of DENV were analyzed...
May 23, 2017: Tropical Medicine & International Health: TM & IH
https://www.readbyqxmd.com/read/28543779/inosine-can-increase-dna-s-susceptibility-to-photo-oxidation-by-a-ru-ii-complex-due-to-structural-change-in-the-minor-groove
#15
John M Kelly, Paraic Keane, James Hall, Fergus Poynton, Bjorn Poulsen, Sarah Gurung, Ian Clark, Igor Sazanovich, Michael Towrie, Thorfinnur Gunnlaugsson, Susan Quinn, Christine Cardin
Key to the development of DNA-targeting phototherapeutic drugs is determining the interplay between the photoactivity of the drug and its binding preference for a target sequence. For the photo-oxidising lambda-[Ru(TAP)2(dppz)]2+ (Ʌ-1) complex bound to either d{T1C2G3G4C5G6C7C8G9A10}2 (G9) or d{TCGGCGCCIA}2 (I9), the X-ray crystal structures shows the dppz intercalated at the terminal T1C2;G9A10 step or T1C2;I9A10 step. Thus substitution of the G9 nucleobase by inosine does not affect intercalation in the solid state although with I9 the dppz is more deeply inserted...
May 25, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/28543725/tutorial-for-the-structure-elucidation-of-small-molecules-by-means-of-the-lsd-software
#16
Jean-Marc Nuzillard, Bertrand Plainchont
Automatic structure elucidation of small molecules by means of the "Logic for Structure Elucidation" software (LSD) is introduced in the context of the automatic exploitation of chemical shift correlation data and with minimal input from chemical shift values. The first step in solving a structural problem by means of LSD is the extraction of pertinent data from the 1D and 2D spectra. This operation requires the labeling of the resonances and of their correlations; its reliability highly depends on the quality of the spectra...
May 24, 2017: Magnetic Resonance in Chemistry: MRC
https://www.readbyqxmd.com/read/28543661/building-the-next-bioethics-commission
#17
Alexander M Capron
At every moment, somewhere in the world, a group of men and women are sitting around a table deliberating about an ethical issue posed by medicine and research, whether as a research ethics committee; a hospital or clinical ethics committee; a stem-cell review committee; a gene transfer research committee; a biobank ethics committee; an ethics advisory committee for a medical or nursing association or nongovernmental organization; a state, provincial, national, or intergovernmental bioethics committee; or an ad hoc panel examining a particular development or case...
May 2017: Hastings Center Report
https://www.readbyqxmd.com/read/28543620/squamous-cell-carcinoma-in-the-afro-caribbean-community-an-11-year-retrospective-study
#18
Nadège Cordel, Lucie Bonnecarrère, Benoit Tressières
BACKGROUND: Squamous cell carcinoma (SCC) is considered the most frequent skin cancer in black people. Its incidence is not known in the Afro-Caribbean population. OBJECTIVE: To assess the incidence of SCC in Guadeloupe, the largest island of the Lesser Antilles (405 000 inhabitants, mostly black people of African and European descent). The second objective was to characterize clinical and histological patterns of SCC occurring in the Afro-Caribbean community. METHODS: This retrospective study was conducted over an 11-year period (2000-2010)...
May 22, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/28543610/metallic-nanoparticles-irradiated-by-low-energy-protons-for-radiation-therapy-are-there-significant-physical-effects-to-enhance-the-dose-delivery
#19
Anne-Catherine Heuskin, Bernard Gallez, Olivier Feron, Philippe Martinive, Carine Michiels, Stéphane Lucas
PURPOSE: To identify which physical properties of nanoparticles are correlated to the survival fraction of cells exposed in vitro to low energy protons in combination with nanoparticles. METHODS: The Geant4 simulation toolkit (version 10.3) was used to model nanoparticles of different sizes (5 to 50 nm) and materials (Ti, Zr, Hf, Ta, Au, Pt), with or without an organic capping ensuring biocompatibility and to irradiate them with 1.3 or 4 MeV protons and 5.3 MeV alpha particles...
May 23, 2017: Medical Physics
https://www.readbyqxmd.com/read/28543607/successful-ablation-of-a-right-atrium-axillary-ventricular-accessory-pathway-associated-with-wolff-parkinson-white-syndrome
#20
Yuan Yuan, Deyong Long, Jianzeng Dong, Ling Tao, Changsheng Ma
We report a case of a patient with right axillary ventricular. Similar congenital anomaly of the right atrium was reported as "right appendage diverticulum or right atrial diverticulum". However, this independent chamber has its own annulus, synchronizes with the right ventricular, and generates large ventricular potential. Under the guidance of CARTO mapping system, a right atrioventricular accessory pathway associated with Type B Wolff-Parkinson-White syndrome was ablated successfully. This pathway was close to the annulus of the axillary ventricular...
May 24, 2017: Pacing and Clinical Electrophysiology: PACE
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