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https://www.readbyqxmd.com/read/28820997/nh2fe3o4-sio2-supported-peroxidase-catalyzed-h2o2-for-degradation-of-endocrine-disrupter-from-aqueous-solution-roles-of-active-radicals-and-noms
#1
Jing Ai, Weijun Zhang, Guiying Liao, Hua Xia, Dongsheng Wang
In this work, magnetic Fe3O4 was utilized to immobilize horseradish peroxidase (IM-HRP) in order to improve its stability and reusability by crosslinking method process with glutaraldehyde. The physicochemical properties of NH2Fe3O4@SiO2 and IM-HRP were characterized by powder X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), Thermo-gravimetric Analysis (TGA) and Transmission electron microscopy (TEM). The thermal stability of immobilized-HRP was considerably improved in comparison with free counterpart...
August 13, 2017: Chemosphere
https://www.readbyqxmd.com/read/28820360/preliminary-study-on-the-changes-of-ovarian-reserve-menstruation-and-lymphocyte-subpopulation-in-systemic-lupus-erythematosus-sle-patients-of-childbearing-age
#2
H Gao, J Ma, X Wang, T Lv, J Liu, Y Ren, Y Li, Y Zhang
Objective The main aim of this study was to investigate the ovarian reserve, menstruation, and lymphocyte subpopulation in systemic lupus erythematosus (SLE) patients of childbearing age. Methods We enrolled 40 SLE patients of childbearing age and 40 age-matched healthy controls. Anti-Müllerian hormone (AMH) was tested by electrochemiluminescence, and lymphocyte subsets were tested by flow cytometry. Menstruation situation was obtained by interview. Results The AMH level of the SLE group was significantly lower than that of the control group ( p < 0...
January 1, 2017: Lupus
https://www.readbyqxmd.com/read/28819600/extensively-drug-resistant-tuberculosis-of-the-lumbar-spine-in-a-six-year-old-child-a-case-report
#3
Siddharth Sanjay Shah, Aakanksha Arvind Goregaonkar, Arvind Balkrishna Goregaonkar
INTRODUCTION: The emergence of extensively drug-resistant tuberculosis (XDR-TB) is a challenging paradigm shift faced by the TB control programs worldwide today. The treatment is further compounded with unique management difficulties faced in pediatric patients. Treatment of XDR-TB requires prolonged chemotherapy with second-line drugs which offer lesser potency and increased risk of drug-related side effects. We present a case of spinal XDR-TB in a child, managed with extended second-line antitubercular chemotherapy (ATT)...
March 2017: Journal of Orthopaedic Case Reports
https://www.readbyqxmd.com/read/28817986/formation-of-artifactual-dmpo-oh-spin-adduct-in-acid-solutions-containing-nitrite-ions
#4
Tetsuya Takayanagi, Hirokazu Kimiya, Tatsushi Ohyama
We investigated aqueous solutions containing nitrite ions and DMPO (5,5-dimethyl-1-pyrroline-N-oxide) by ESR (Electron Spin Resonance) in the pH range from 1 to 6. A DMPO -OH signal was observed below pH 3.0 in the presence of nitrite ions, whereas in the absence of nitrite ion, an extremely weak signal was observed below pH 1.5. Addition of methanol, a hydroxyl radical scavenger, to this system did not lead to the appearance of a detectable DMPO-CH2OH signal. The possibility of this DMPO-OH signal being due to a genuine spin trapping process with hydroxyl radical was therefore ruled out...
August 17, 2017: Free Radical Research
https://www.readbyqxmd.com/read/28815327/molecular-characterization-and-heterogeneity-of-circulating-tumor-cells-in-breast-cancer
#5
Anna Jakabova, Zuzana Bielcikova, Eliska Pospisilova, Rafal Matkowski, Bartlomiej Szynglarewicz, Urszula Staszek-Szewczyk, Milada Zemanova, Lubos Petruzelka, Petra Eliasova, Katarina Kolostova, Vladimir Bobek
INTRODUCTION: This study analyzes peripheral blood samples from breast cancer (BC) patients. CTCs from peripheral blood were enriched by size-based separation and were then cultivated in vitro. The primary aim of this study was to demonstrate the antigen independent CTC separation method with high CTC recovery. Subsequently, CTCs enriched several times during the treatment were characterized molecularly. METHODS: Patients with different stages of BC (N = 167) were included into the study...
August 16, 2017: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/28814431/calprotectin-as-a-marker-of-inflammation-in-patients-with-early-rheumatoid-arthritis
#6
Maria Karolina Jonsson, Nina Paulshus Sundlisæter, Hilde Haugedal Nordal, Hilde Berner Hammer, Anna-Birgitte Aga, Inge Christoffer Olsen, Karl Albert Brokstad, Désirée van der Heijde, Tore K Kvien, Bjørg-Tilde Svanes Fevang, Siri Lillegraven, Espen A Haavardsholm
OBJECTIVES: Calprotectin is an inflammatory marker of interest in rheumatoid arthritis (RA). We evaluated whether the level of calprotectin was associated with disease activity, and if it was predictive of treatment response and radiographic progression in patients with early RA. METHODS: Plasma from disease-modifying antirheumatic drug (DMARD)-naïve patients with RA fulfilling 2010 American College of Rheumatology/European League Against Rheumatism classification criteria with symptom duration <2 years was analysed for calprotectin at baseline, and after 1, 3 and 12 months...
August 16, 2017: Annals of the Rheumatic Diseases
https://www.readbyqxmd.com/read/28811989/postoperative-kinetics-of-c-reactive-protein-and-erythrocyte-sediment-rate-in-one-two-and-multilevel-posterior-spinal-decompressions-and-instrumentations
#7
Sombat Kunakornsawat, Rachata Tungsiripat, Dechporn Putthiwara, Chaiwat Piyakulkaew, Tinnakorn Pluemvitayaporn, Pritsanai Pruttikul, Piyabuth Kittithamvongs
STUDY DESIGN: Prospective study. OBJECTIVE: To characterize the normal pattern of kinetics of postoperative C-reactive protein (CRP) and erythrocyte sedimentation rate (ESR) after decompression, spinal instrumentation, and posterolateral fusion in 1, 2, and more than 2 levels. METHODS: Blood specimens were obtained from patients who underwent posterior decompression, instrumentation with pedicular screws, and posterolateral fusion from June 2009 to January 2011...
August 2017: Global Spine Journal
https://www.readbyqxmd.com/read/28811951/granulomatosis-with-polyangiitis-presenting-as-pyrexia-of-unknown-origin-leukocytosis-and-microangiopathic-haemolytic-anemia
#8
Sima Terebelo, Iona Chen
A 66-year-old woman presented to the Emergency Department with a florid sepsis-like picture, a two-week history of fever, relative hypotension with end organ ischemia (unexplained liver enzyme and troponin elevations), and nonspecific constitutional symptoms. She was initially found to have a urinary tract infection but, despite appropriate treatment, her fever persisted and her white blood cell count continued to rise. During her hospitalization the patient manifested leukocytosis to 47,000 WBC/μL, ESR 67 mm/hr (normal range 0-42 mm/hr), CRP 17...
2017: Case Reports in Rheumatology
https://www.readbyqxmd.com/read/28810750/the-metal-insulator-transition-in-the-organic-conductor-%C3%AE-%C3%A2-bedt-ttf-2hg-scn-2cl
#9
Weiwu Li, Eva Rose, Minh Vu Tran, Ralph Hübner, Andrzej Łapiński, Roman Świetlik, Svetlana A Torunova, Elena I Zhilyaeva, Rimma N Lyubovskaya, Martin Dressel
We explore the nature of the metal-insulator transition in the two-dimensional organic compound β(″)-(BEDT-TTF)2Hg(SCN)2Cl by x-ray, electrical transport, ESR, Raman, and infrared investigations. Magnetic and vibrational spectroscopy concurrently reveal a gradual dimerization along the stacking direction (a-b), setting in already at the crossover temperature of 150 K from the metallic to the insulating state. A spin gap of Δσ=47 meV is extracted. From the activated resistivity behavior below T = 55 K, a charge gap of Δρ=60 meV is derived...
August 14, 2017: Journal of Chemical Physics
https://www.readbyqxmd.com/read/28810628/use-of-aerosol-inhalation-treatment-with-budesonide-and-terbutaline-sulfate-on-acute-pediatric-asthmatic-bronchitis
#10
Fangfang Bian, Yue-E Wu, Chong-Lin Zhang
The use of oxygen-driven aerosol inhalation therapy with budesonide (suspension) and terbutaline sulfate for the treatment of pediatric asthmatic bronchitis was studied. Sixty pediatric patients diagnosed with asthmatic bronchitis in Xuzhou Children's Hospital during the period comprising April 2013 to December 2015 were enrolled in the study. After randomly dividing the patients into a control (conventional dexamethasone drip) and a treatment group (inhalation of budesonide with terbutaline sulfate) of 30 patients each, the symptoms were treated using antibiotics when necessary...
August 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28810226/rapid-removal-of-organic-pollutants-by-activation-sulfite-with-ferrate
#11
Jing Zhang, Liang Zhu, Zhenyu Shi, Ying Gao
With the addition of sulfite, almost complete removal of seven out of eight tested contaminants, i.e. benzotriazole, phenol, ciprofloxacin, methyl blue, rhodamine B, methyl orange and sulfamethoxazole, was observed in 30 s except for sulfamethoxazole at pH 9.0, while Fe(VI) alone only resulted in less than 6% removal. In this study, the mechanism of sulfite/Fe(VI) process was explored for the first time. Firstly, sulfite attacks Fe(VI) via a 1-e(-) transfer forming the primary sulfite radical (SO3(-)), then SO3(-) reacts rapidly with oxygen in a diffusion controlled rate to form a much more reactive peroxyl radical SO5(-), which further reacts with HSO3(-) and produces SO4(-)...
July 19, 2017: Chemosphere
https://www.readbyqxmd.com/read/28808214/association-of-three-single-nucleotide-polymorphisms-of-esr1with-breast-cancer-susceptibility-a-meta-analysis
#12
Xu Hu, Linfei Jiang, Chenhui Tang, Yuehong Ju, Li Jiu, Yongyue Wei, Li Guo, Yang Zhao
Expression of estrogen receptors is correlated with breast cancer risk, but inconsistent results have been reported. To clarify potential estrogen receptor (ESR)-related breast cancer risk, we analyzed genetic variants ofESR1 in association with breast cancer susceptibility. We performed a meta-analysis to investigate the association between rs2234693, rs1801132, and rs2046210 (single nucleotide polymorphisms ofESR1), and breast cancer risk. Our analysis included 44 case-control studies. For rs2234693, the CC genotype had a higher risk of breast cancer compared to the TT or CT genotype...
January 19, 2017: Journal of Biomedical Research
https://www.readbyqxmd.com/read/28806570/chiral-separation-of-terbutaline-and-non-steroidal-anti-inflammatory-drugs-by-using-a-new-lysine-bridged-hemispherodextrin-in-capillary-electrophoresis
#13
V Cucinotta, M Messina, A Contino, G Maccarrone, S Orlandini, A Giuffrida
A method for the separation of a mixture of terbutaline and non-steroidal anti-inflammatory drugs was developed using capillary electrophoresis with a new hemispherodextrin, ad hoc designed, the lysine - bridged hemispherodextrin (THLYSH). The use of lysine residues to bridge the trehalose capping unit moiety to the cyclodextrin cavity gives rise to a receptor with two long chains with amine nitrogen atoms, whose charge can be easily tuned as a function of the solution pH. The new hemispherodextrin was accurately characterised by ESI-MS and NMR spectroscopy, also highlighting its protonation behaviour...
August 3, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28805864/novel-synthesis-of-magnetic-porous-c-znfe2o4-photocatalyst-with-enhanced-activity-under-visible-light-based-on-the-fenton-like-reaction
#14
Fangxiao Wang, Yanglin Chen, Rongshu Zhu, Jianmin Sun
Magnetic visible-light-driven photocatalyst, porous C/ZnFe2O4 (denoted as C/ZFO-CE) was fabricated via a CO2-mediated ethanol route. CO2-mediated ethanol route largely mitigated the solvent strength and facilitated the homogenous deposition of ZnFe2O4 (ZFO) through the coordination of metallic cation with CO3(2-) and HCO3(-) anions, which were hydrolyzed from CO2 and H2O, thereby avoiding additional precipitant. Moreover, the HCO3(-), CO3(2-) and NO3(-) in the system acted as templates for the formation of porous C avoiding the additional organic mesoporous templates, thus reducing the synthesis cost...
August 14, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/28805018/pain-catastrophizing-is-strongly-associated-with-subjective-outcomes-but-not-with-inflammatory-assessments-in-rheumatoid-arthritis-patients
#15
Hilde B Hammer, Till Uhlig, Tore K Kvien, Jon Lampa
OBJECTIVES: Pain catastrophizing is conceptualized as a negative cognitive-affective response to anticipated or actual pain and has been associated with important pain-related outcomes. The objective of this prospective study of established rheumatoid arthritis (RA) patients was to explore how pain catastrophizing was related to patient-reported outcomes (PROs), composite scores and assessments of inflammatory activity. METHODS: RA patients starting bDMARD were examined at baseline and after 1, 2, 3, 6 and 12 months with PROs (joint pain/patient's global VAS, MHAQ, RAID score), clinical and laboratory assessments (tender/swollen joint count, assessor's global VAS, ESR/CRP), ultrasound (US) (grey scale/power Doppler of 36 joints and 4 tendons) and pain catastrophizing...
August 13, 2017: Arthritis Care & Research
https://www.readbyqxmd.com/read/28804234/nitric-oxide-link-between-inflammation-and-endothelial-dysfunction-in-rheumatoid-arthritis
#16
Nidhi Garg, Ashit Syngle, Pawan Krishan
Nitric oxide (NO) plays an important role in inflammatory joint disease and endothelial function. Endothelial dysfunction has been attributed to a reduction in NO bioactivity in rheumatoid arthritis (RA). However, the relationship of NO with inflammation and endothelial dysfunction in RA has not yet been investigated. To investigate the relationship of nitrite with inflammation and endothelial dysfunction in RA. Total 28 patients satisfying 2010 Rheumatoid Arthritis Classification Criteria were recruited for the study...
September 2017: International Journal of Angiology: Official Publication of the International College of Angiology, Inc
https://www.readbyqxmd.com/read/28803025/the-effect-of-nano-tio2-photocatalysis-on-the-antioxidant-activities-of-cu-zn-sod-at-physiological-ph
#17
Wen Zheng, Hai-Feng Zou, Shao-Wu Lv, Yan-Hong Lin, Min Wang, Fei Yan, Ye Sheng, Yan-Hua Song, Jie Chen, Ke-Yan Zheng
Security issues of nanoparticles on biological toxicity and potential environmental risk have attracted more and more attention with the rapid development and wide applications of nanotechnology. In this work, we explored the effect and probable mechanism of nano-TiO2 on antioxidant activity of copper, zinc superoxide dismutase (Cu, Zn-SOD) under natural light and mixed light at physiological pH. Nano-TiO2 was prepared by sol-hydrothermal method, and then characterized by X-ray Diffraction (XRD) and Transmission electron micrographs (TEM)...
August 5, 2017: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/28801570/the-buckling-instability-of-aggregating-red-blood-cells
#18
Daniel Flormann, Othmane Aouane, Lars Kaestner, Christian Ruloff, Chaouqi Misbah, Thomas Podgorski, Christian Wagner
Plasma proteins such as fibrinogen induce the aggregation of red blood cells (RBC) into rouleaux, which are responsible for the pronounced shear thinning behavior of blood, control the erythrocyte sedimentation rate (ESR) - a common hematological test - and are involved in many situations of physiological relevance such as structuration of blood in the microcirculation or clot formation in pathological situations. Confocal microscopy is used to characterize the shape of RBCs within rouleaux at equilibrium as a function of macromolecular concentration, revealing the diversity of contact zone morphology...
August 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28800285/cytogenetic-reconstruction-of-gamma-ray-doses-delivered-to-atomic-bomb-survivors-dealing-with-wide-distributions-of-photon-energies-and-contributions-from-hematopoietic-stem-progenitor-cells
#19
Nori Nakamura, Yuko Hirai, Yoshiaki Kodama, Kanya Hamasaki, Harry M Cullings, Kismet A Cordova, Akio Awa
Retrospective estimation of the doses received by atomic bomb (A-bomb) survivors by cytogenetic methods has been hindered by two factors: One is that the photon energies released from the bomb were widely distributed, and since the aberration yield varies depending on the energy, the use of monoenergetic (60)Co gamma radiation to construct a calibration curve may bias the estimate. The second problem is the increasing proportion of newly formed lymphocytes entering into the lymphocyte pool with increasing time intervals since the exposures...
August 11, 2017: Radiation Research
https://www.readbyqxmd.com/read/28798770/diagnostic-value-of-neutrophil-to-lymphocyte-ratio-and-platelet-to-lymphocyte-ratio-in-crohn-s-disease
#20
Jue-Rong Feng, Xiao Qiu, Fan Wang, Peng-Fei Chen, Qian Gao, Ya-Nan Peng, Xue Lin, Qing Liu, Jing Liu, Qiu Zhao, Jin Li
The aim of this study is to investigate the diagnostic efficacy of neutrophil-to-lymphocyte ratio (NLR), neutrophil-to-monocyte ratio (NMR), lymphocyte-to-monocyte ratio (LMR), and platelet-to-lymphocyte ratio (PLR) in patients with Crohn's disease (CD) and non-CD controls. These ratios were all derived from complete blood counts. Two hundred and six participants including CD inpatients and non-CD controls were retrospectively enrolled. We found statistically higher NLR and PLR and lower LMR in CD patients than in non-CD controls (all P < 0...
2017: Gastroenterology Research and Practice
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