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https://www.readbyqxmd.com/read/28636148/magneto-structural-characterization-of-oxalamide-dihalo-bridged-copper-dimers-intra-and-interdimer-interactions-studied-by-single-crystal-esr-spectroscopy
#1
Dijana Zilic, Debdeep Maity, Mario Cetina, Kresimir Molcanov, Zoran Dzolic, Mirta Herak
The detailed single crystal electron spin resonance (ESR) analysis of oxalamide complexes with halogen-bridged copper dimers, supported by X-ray, magnetic susceptibility and powder ESR studies, is reported. Four complexes with two different ligands were synthesized: [CuLA(μ-X)]₂ and [CuLV(μ-X)]₂, where LA = N-(L-alanine methyl ester)-N'-((2-pyridine-2-yl)methyl)oxalamide and LV=N-(L-valine methyl ester)-N'-((2-pyridine-2-yl)methyl)oxalamide, while X=Cl or Br. X-ray analysis shows that geometry at each copper(II) ion is square pyramidal while two pyramids share one base-to-apex edge with parallel basal planes...
June 21, 2017: Chemphyschem: a European Journal of Chemical Physics and Physical Chemistry
https://www.readbyqxmd.com/read/28630629/the-cedar-study-a-longitudinal-study-of-the-clinical-effects-of-conventional-dmards-and-biologic-dmards-in-australian-rheumatology-practice
#2
Lynden Roberts, Kathleen Tymms, Julien de Jager, Geoffrey Littlejohn, Hedley Griffiths, Dave Nicholls, Paul Bird, Jennifer Young, Julie Hill, Jane Zochling
OBJECTIVES: To observe the choices of conventional disease modifying antirheumatic drugs (cDMARDs) and biologic DMARDs (bDMARDs) in the management of rheumatoid arthritis (RA) in Australian routine clinical practice, to assess treatment survival and determine the effect of cDMARDs/bDMARDs on disease activity. METHODS: Routinely collected, deidentified clinical data was sourced from 20 Australian rheumatology practices. RA patients aged ≥18 years, who had received cDMARDs/bDMARDs and a recorded subsequent visit, were included...
2017: International Journal of Rheumatology
https://www.readbyqxmd.com/read/28630526/discriminating-value-of-calprotectin-in-disease-activity-and-progression-of-nonradiographic-axial-spondyloarthritis-and-ankylosing-spondylitis
#3
Jinxian Huang, Zhihua Yin, Guoxiang Song, Shengjin Cui, Jinzhao Jiang, Lijun Zhang
It has been controversial whether ankylosing spondylitis (AS) and nonradiographic axial spondyloarthritis (nr-axSpA) are separate or different phases of radiographic progression. We determined that serum calprotectin level (ng/ml) was higher in AS (15.30 ± 6.49) and nr-axSpA (17.76 ± 8.59) patients than in healthy individuals (7.40 ± 2.67). No difference was observed in calprotectin level between these two groups. Elevated calprotectin was positively correlated with ESR, CRP, BASDAI, and ASDAS as well as SPARCC scoring and had no correlation with BASFI and mSASSS...
2017: Disease Markers
https://www.readbyqxmd.com/read/28630396/comparison-of-lavage-techniques-for-preventing-incision-infection-following-posterior-lumbar-interbody-fusion
#4
Jun Fei, Jianhua Gu
BACKGROUND The main purpose of this study was to compare the effects of various lavage techniques - traditional saline lavage (SL), pulse lavage (PL), closed drainage (CD), and iodine lavage (IL) - on preventing incision-related infection after posterior lumbar interbody fusion. MATERIAL AND METHODS Patients with prolapsed lumbar (intervertebral) discs (PLID) undergoing posterior lumbar interbody fusion surgery (PLIF) over the course of 2 years were included and were randomly allocated into 4 groups: the SL group, the PL group, the CD group, and the IL group...
June 20, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28629099/instrumental-methods-and-techniques-for-structural-and-physicochemical-characterization-of-biomaterials-and-bone-tissue-a-review
#5
REVIEW
Žarko Mitić, Aleksandra Stolić, Sanja Stojanović, Stevo Najman, Nenad Ignjatović, Goran Nikolić, Miroslav Trajanović
A review of recent advances in instrumental methods and techniques for structural and physicochemical characterization of biomaterials and bone tissue is presented in this paper. In recent years, biomaterials attracted great attention primarily because of the wide range of biomedical applications. This paper focuses on the practical aspects of instrumental methods and techniques that were most often applied (X-ray methods, vibrational spectroscopy (IR and Raman), magnetic-resonance spectroscopy (NMR and ESR), mass spectrometry (MS), atomic absorption spectrometry (AAS) and inductively coupled plasma-atomic emission spectrometry (ICP-AES), thermogravimetry (TG), differential thermal analysis (DTA) and differential scanning calorimetry (DSC), scanning electron microscopy (SEM), transmission electron microscopy (TEM)) in the structural investigation and physicochemical characterization of biomaterials and bone tissue...
October 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28628907/whispering-gallery-mode-esr-spectroscopy-and-parameters-measurement-in-single-crystal-srlaalo4-at-millikelvin-temperature
#6
M A Hosain, J-M Le Floch, J Krupka, M E Tobar
A cylindrical single crystal SrLaAlO4 Whispering Gallery mode dielectric resonator was cooled to millikelvin temperature using a dilution refrigerator. By controlling a DC-magnetic field, impurity ions' spins were coupled to a variety of modes allowing the measurement of hybrid spin-photon systems. This Electron Spin Resonance mapping technique allowed us to detect Cu(2+),Fe(3+) and Mn(4+) impurity ions (at the level of parts per million (ppm) to parts per billion (ppb)), verified by the measurement of the spin parameters along with their site symmetry...
June 11, 2017: Journal of Magnetic Resonance
https://www.readbyqxmd.com/read/28627544/anchoring-ceria-nanoparticles-on-graphene-oxide-and-their-radical-scavenge-properties-under-gamma-irradiation-environment
#7
Wei Xia, Jun Zhao, Tao Wang, Li Song, Hao Gong, Hu Guo, Bing Gao, Xiaoli Fan, Jianping He
Polymer networks such as those of epoxy resin, as common protection materials, possess radiolytic oxidation degradation effects under gamma irradiation environment, which have a great accelerating effect on the ageing rate and severely limit their potential applications for metal protection in the nuclear industry. To overcome this, we report a simple scheme of anchoring crystalline ceria nanoparticles onto graphene sheets (CG) and incorporate it into the epoxy resin, followed by thermal polymerization to obtain CeO2/graphene-epoxy nanocomposite coating (CGNS)...
June 19, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28626213/the-efficacy-of-imrecoxib-and-celecoxib-in-axial-spondyloarthritis-and-their-influence-on-serum-dickopff-related-protein-1-dkk-1-levels
#8
Guan-Min Gao, Yan-Min Li, Xiao-Long Zheng, Dong-Bin Jiang, Lei-Lei Zhang, Peng-Hui Xu, Sheng-Yun Liu, Zhao-Hui Zheng, Quan-Cheng Kan
BACKGROUND To observe and demonstrate therapeutic effects and side effects of two selective COX-2 inhibitors, imrecoxib and celecoxib, on patients with axial spondyloarthritis (axSpA) and observe the correlation between imaging scores and serum DKK-1 levels. MATERIAL AND METHODS Sixty patients with axSpA were randomly assigned to receive 200 mg imrecoxib or 200 mg celecoxib twice daily. Fifty-one patients who completed follow-up were included in the study. At baseline, week 4, and week 12, the clinical parameters, inflammatory markers (ESR, CRP), and adverse reactions were recorded...
June 19, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28623401/biomarkers-in-the-assessment-of-oral-mucositis-in-head-and-neck-cancer-patients-a-systematic-review-and-meta-analysis
#9
REVIEW
Ana Gabriela Costa Normando, Camila Lopes Rocha, Isabela Porto de Toledo, Paulo Tadeu de Souza Figueiredo, Paula Elaine Diniz Dos Reis, Graziela De Luca Canto, Eliete Neves Silva Guerra
PURPOSE: The aim of this study was to evaluate the capability of biomarkers to predict the risk of oral mucositis in head and neck cancer patients, as well as to assess the correlation between these biomarkers and the severity of mucositis. METHODS: The search was performed at LILACS, PubMed, Science Direct, Scopus, and Web of Science. A search of the gray literature was performed on Google Scholar, OpenGrey, and ProQuest. The methodological quality of the included studies was assessed using the Meta-Analysis of Statistics Assessment and Review Instrument (MAStARI) tool, and the evidence quality was assessed by the Grading of Recommendation, Assessment, Development, and Evaluation (GRADE) system...
June 16, 2017: Supportive Care in Cancer: Official Journal of the Multinational Association of Supportive Care in Cancer
https://www.readbyqxmd.com/read/28622785/comprehensive-long-non-coding-rna-expression-profiling-reveals-their-potential-roles-in-systemic-lupus-erythematosus
#10
Lian-Ju Li, Wei Zhao, Sha-Sha Tao, Jun Li, Shu-Zhen Xu, Jie-Bing Wang, Rui-Xue Leng, Yin-Guang Fan, Hai-Feng Pan, Dong-Qing Ye
Long non-coding RNAs can regulate gene transcription, modulate protein function, and act as competing endogenous RNA. Yet, their roles in systemic lupus erythematosus remain to be elucidated. We determined the expression profiles of lncRNAs in T cells of SLE patients and healthy controls using microarrays. Up to 1935 lncRNAs and 1977 mRNAs were differentially expressed. QRT-PCR showed downregulated uc001ykl.1 and ENST00000448942 in SLE patients. Expression of uc001ykl.1 correlated with erythrocyte sedimentation rate (ESR) and C-reactive protein, whereas ENST00000448942 level correlated with ESR and anti-Sm antibodies...
June 10, 2017: Cellular Immunology
https://www.readbyqxmd.com/read/28622582/porous-mn-doped-g-c3n4-photocatalysts-for-enhanced-synergetic-degradation-under-visible-light-illumination
#11
Ji-Chao Wang, Cheng-Xing Cui, Ying Li, Lu Liu, Yu-Ping Zhang, Weina Shi
Photocatalytic degradation by semiconductors is an ideal way to solve the environmental problem. Here, the porous Mn doped g-C3N4 photocatalyst was synthesized by the calcination-refluxing method. The as-prepared g-C3N4 exhibits the high activity of photocatalytic degradation under visible light irradiation ( > 400nm) in the mixed system of Cr(VI) and organic pollutants. Especially, the photocatalytic activity of Cr(VI) reduction was increased from 9.5% to 76.5%, while that of Rhodamine B(RhB) degradation was enhanced from 15...
June 8, 2017: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/28622454/treatment-of-rheumatoid-arthritis-with-anti-tumor-necrosis-factor-or-tocilizumab-therapy-as-first-biologic-in-a-global-comparative-observational-study
#12
Ernest H Choy, Corrado Bernasconi, Maher Aassi, Jose Fernando Molina, Oscar Massimiliano Epis
OBJECTIVE: Compare clinical effectiveness between tocilizumab and tumor necrosis factor inhibitors (TNFi) in patients with rheumatoid arthritis and inadequate response to conventional synthetic disease-modifying antirheumatic drugs initiating biologic therapy. METHODS: Patients prescribed tocilizumab (intravenous) or TNFi were prospectively observed in routine clinical practice for 52 weeks across 158 sites in 26 countries. The primary observation was change from baseline in Disease Activity Score based on 28 joints-erythrocyte sedimentation rate (DAS28-ESR) at week 24 using analysis of covariance for between-group comparison...
June 16, 2017: Arthritis Care & Research
https://www.readbyqxmd.com/read/28622048/a-randomized-double-blind-parallel-group-phase-iii-study-of-shortening-the-dosing-interval-of-subcutaneous-tocilizumab-monotherapy-in-patients-with-rheumatoid-arthritis-and-an-inadequate-response-to-subcutaneous-tocilizumab-every-other-week-results-of-the-12
#13
Atsushi Ogata, Yoshiya Tanaka, Tomonori Ishii, Motohide Kaneko, Hiroko Miwa, Shino Ohsawa
OBJECTIVE: To determine the efficacy and safety of subcutaneous tocilizumab (TCZ-SC) monotherapy every week (qw) versus every other week (q2w) in patients with rheumatoid arthritis who had an inadequate response to TCZ-SC q2w. METHODS: Adult patients in Japan with inadequate response to TCZ-SC q2w were randomized to either TCZ-SC 162 mg qw monotherapy or TCZ-SC 162 mg q2w monotherapy for 12 weeks (double-blind). The primary endpoint was the change from baseline in adjusted Disease Activity Score 28-erythrocyte sedimentation rate (DAS28-ESR) at week 12...
June 16, 2017: Modern Rheumatology
https://www.readbyqxmd.com/read/28621587/treatment-of-severe-hypertension-in-a-14-year-old-child-successful-blood-pressure-control-with-additive-administration-of-captopril-an-angiotensin-converting-enzyme-inhibitor-in-a-patient-with-bilateral-renovascular-hypertension
#14
Xin Zhang, Ying Xu, Xiaoping Chen, Si Wang, Xinran Li, Xin Yan
We report a 14-year-old boy with recurrent episodes of headache caused by uncontrolled hypertension. The diagnosis of renovascular hypertension due to Takaysu arteritis (TA) was made based on an increase in erythrocyte sedimentation rate (ESR) and C-reactive protein (CRP) and computed tomography (CT) image of bilateral renal artery stenosis was taken. Renal scintigraphy revealed normal perfusion and function of the right kidney and severe reduction of the perfusion and function of the left kidney. Careful drug adjustments significantly improved but did not fully control the blood pressure (BP); further, angioplasty, which showed almost occlusion of the left renal artery opening and the minor narrowing of the right renal artery, failed to regain sufficient BP control...
June 16, 2017: Clinical and Experimental Hypertension: CHE
https://www.readbyqxmd.com/read/28621161/dna-methylation-patterns-in-ulcerative-colitis-associated-cancer-a-systematic-review
#15
Ruth A Emmett, Katherine L Davidson, Nicholas J Gould, Ramesh P Arasaradnam
BACKGROUND: Evidence points to the role of DNA methylation in ulcerative colitis (UC) associated cancer (UCC), the most serious complication of ulcerative colitis. A better understanding of the etiology of UCC may facilitate the development of new therapeutic targets and help to identify biomarkers of the disease risk. METHODS: A search was performed in three databases following PRISMA protocol. DNA methylation in UCC was compared with sporadic colorectal cancer (SCRC), and individual genes differently methylated in UCC identified...
June 16, 2017: Epigenomics
https://www.readbyqxmd.com/read/28620059/anakinra-in-a-cohort-of-children-with-chronic-nonbacterial-osteomyelitis
#16
Manuela Pardeo, Denise Pires Marafon, Virginia Messia, Maria Carmen Garganese, Fabrizio De Benedetti, Antonella Insalaco
OBJECTIVE: To report efficacy and safety in patients with chronic nonbacterial osteomyelitis (CNO) unresponsive to nonsteroidal antiinflammatory drugs (NSAID) and bisphosphonates and/or glucocorticoids treated with anakinra. METHODS: Nine patients (6 females) with refractory CNO were treated with anakinra for at least 6 months. We recorded, at baseline and after 6 months of treatment, clinical and laboratory features, and number and distribution of bone lesions detected by 99mTc-MDP bone scintigraphy...
June 15, 2017: Journal of Rheumatology
https://www.readbyqxmd.com/read/28618429/microarray-expression-profile-of-circular-rnas-in-peripheral-blood-mononuclear-cells-from-rheumatoid-arthritis-patients
#17
Qingqing Ouyang, Jing Wu, Zhenlan Jiang, Jinjun Zhao, Ran Wang, Aiju Lou, Dingji Zhu, Guo-Ping Shi, Min Yang
BACKGROUND/AIMS: Circular RNAs (circRNAs) compose a large class of RNAs that can be used as biomarkers in clinical blood samples. This study aimed to determine the expression of circRNAs in peripheral blood mononuclear cells (PBMCs) from rheumatoid arthritis (RA) patients to identify novel biomarkers for RA screening. METHODS: We started with a microarray screening of circRNA changes in PBMCs from 5 RA patients and 5 healthy controls. We then confirmed the selected circRNA changes in PBMCs from 30 RA patients and 25 age- and sex-matched controls using the real-time quantitative reverse transcription-polymerase chain reaction (qRT-PCR)...
June 15, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28616915/-association-of-elevated-platelet-microparticles-with-disease-activity-in-rheumatoid-arthritis
#18
Li-Jia Xue, Bei-Bei Cui, Xi Li, Qiao-Rong Huang, Yi Liu, Hui Lin
OBJECTIVES: To explore the expression of platelets microparticles (PMPs) in peripheral blood (PB) and synovial fluid (SF) of rheumatoid arthritis (RA) patients and its correlation with clinical inflammatory parameters. METHODS: The levels of PMPs in PB were detected by flow cytometry in 26 active RA patients and 15 healthy control (HC). SF was collected from 16 patients. The percentages of CD62P(+)PMPs, CD154(+)PMPs and clinical parameters (including CRP, ESR, RF and ACPA) were also measured, then the correlations of PMPs with these parameters were analyzed...
May 2017: Sichuan da Xue Xue Bao. Yi Xue Ban, Journal of Sichuan University. Medical Science Edition
https://www.readbyqxmd.com/read/28609015/wuschel-related-homeobox4-wox4-like-genes-regulate-cambial-cell-division-activity-and-secondary-growth-in-populus-trees
#19
Melis Kucukoglu, Jeanette Nilsson, Bo Zheng, Salma Chaabouni, Ove Nilsson
Plant secondary growth derives from the meristematic activity of the vascular cambium. In Arabidopsis thaliana, cell divisions in the cambium are regulated by the transcription factor WOX4, a key target of the CLAVATA3 (CLV3)/EMBRYO SURROUNDING REGION (ESR)-RELATED 41 (CLE41) signaling pathway. However, function of the WOX4-like genes in plants that are dependent on a much more prolific secondary growth, such as trees, remains unclear. Here, we investigate the role of WOX4 and CLE41 homologs for stem secondary growth in Populus trees...
June 13, 2017: New Phytologist
https://www.readbyqxmd.com/read/28608610/identification-of-stable-znii-oxyl-species-enforced-by-mfi-and-its-reversible-reactivity-with-o%C3%A2-at-rt
#20
Yasushige Kuroda, Akira Oda, Takahiro Ohkubo, Takahi Yumura, Hisayoshi Kobayashi
Although a terminal oxyl species bound to certain metal ions is believed to be the intermediate for various oxidation reactions such as O-O bond generation in the photosystem II (PSII), its identification has been elusive. Herein, we report unambiguous identification of a stable ZnII-oxyl species enforced by an MFI-type-zeolite lattice and its reversible reactivity with O₂ at room temperature: [ZnII-O·]+ + O₂ ⇄ [ZnII-O₃·]+. Such intriguing characteristics were evidenced by in situ spectroscopic studies coupled with quantum chemical calculation, i...
June 13, 2017: Angewandte Chemie
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