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https://www.readbyqxmd.com/read/28640439/skin-inspired-multifunctional-autonomic-intrinsic-conductive-self-healing-hydrogels-with-pressure-sensitivity-stretchability-and-3d-printability
#1
Mohammad Ali Darabi, Ali Khosrozadeh, Rene Mbeleck, Yuqing Liu, Qiang Chang, Junzi Jiang, Jun Cai, Quan Wang, Gaoxing Luo, Malcolm Xing
The advent of conductive self-healing (CSH) hydrogels, a class of novel materials mimicking human skin, may change the trajectory of the industrial process because of their potential applications in soft robots, biomimetic prostheses, and health-monitoring systems. Here, the development of a mechanically and electrically self-healing hydrogel based on physically and chemically cross-linked networks is reported. The autonomous intrinsic self-healing of the hydrogel is attained through dynamic ionic interactions between carboxylic groups of poly(acrylic acid) and ferric ions...
June 22, 2017: Advanced Materials
https://www.readbyqxmd.com/read/28587096/the-effect-of-platelet-rich-fibrin-calcium-sulfate-hemihydrate-platelet-rich-plasma-and-resorbable-collagen-on-soft-tissue-closure-of-extraction-sites
#2
Lisa M Yerke, Amal Jamjoom, Talal M Zahid, Robert E Cohen
Rapid and complete soft tissue healing after tooth extraction minimizes surgical complications and facilitates subsequent implant placement. We used four treatment methods and assessed changes in soft tissue socket closure following tooth extraction in humans. The effects of platelet-rich fibrin-calcium sulfate hemihydrate (PRF-CSH), platelet-rich plasma-calcium sulfate hemihydrate (PRP-CSH), a resorbable collagen dressing (RCD), and no grafting material were compared in a randomized, controlled pilot study with a blinded parallel design (N = 23)...
May 25, 2017: Journal of Functional Biomaterials
https://www.readbyqxmd.com/read/28580902/enhanced-bone-formation-by-strontium-modified-calcium-sulfate-hemihydrate-in-ovariectomized-rat-critical-size-calvarial-defects
#3
Shenyu Yang, Lei Wang, Shanbao Feng, Qinmeng Yang, Bin Yu, Mei Tu
The development of a new generation of biomaterials with high osteogenic ability for treatment of osteoporotic fractures is being intensively investigated. The objective of this paper was to investigate new bone formation in an ovariectomized rat (OVX rat) calvarial model of critical size bone defects filled with Sr-containing α-calcium sulfate hemihydrate (SrCSH) cement compared to an α-calcium sulfate hemihydrate (α-CSH) cement and empty defect. X-ray diffraction analysis verified the partial substitution of Sr(2+) for Ca(2+) did not change the phase composition of α-CSH...
June 5, 2017: Biomedical Materials
https://www.readbyqxmd.com/read/28577467/ag-agcl-nanoparticles-modified-cdsno3%C3%A2-3h2o-nanocubes-photocatalyst-for-the-degradation-of-methyl-orange-and-antibiotics-under-visible-light-irradiation
#4
Shi-Feng Yang, Cheng-Gang Niu, Da-Wei Huang, Huan Zhang, Guang-Ming Zeng
CdSnO3·3H2O (CSH) nanocubes modified with Ag/AgCl nanoparticles were constructed via the ultrasonic-assisted precipitation-photoreduction method. The obtained samples were characterized using various analytical techniques. Methyl orange (MO), tetracycline (TC), and oxytetracycline hydrochloride (OTC-HCl) were degraded as target pollutants under visible light irradiation to evaluate the photocatalytic activity of the as-prepared samples. Compared with pure CSH and Ag/AgCl nanoparticles, the developed composite of which 5mL of AgNO3 was added on the synthesis, labelled as 5-Ag/AgCl/CSH, occupied the best photocatalytic activity...
May 28, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28543543/cardiac-implantable-electronic-device-hematomas-risk-factors-and-effect-of-prophylactic-pressure-bandaging
#5
Youlin Koh, Nicholas E Bingham, Natalie Law, Dustin Le, Justin A Mariani
BACKGROUND: Cardiac implantable electronic device (CIED) hematomas are associated with many adverse outcomes. We examined the incidence and risk factors associated with hematoma formation post-CIED implantation, and explored the preventative effect of prophylactic pressure bandaging (PPB) in a large tertiary center. METHODS: 1,091 devices were implanted during October 2011-December 2014. Clinically significant hematomas (CSH) were those that necessitated prolonged admission, including those due to reoperation, and clinically suspicious hematomas were swellings noted by medical/nursing staff...
May 23, 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/28529763/characterisation-of-a-novel-poly-ether-ether-ketone-calcium-sulphate-composite-for-bone-augmentation
#6
Erik A B Hughes, Liam M Grover
BACKGROUND: Calcium sulphate (CS) has been used in bone grafting since the 1800s. It has not replaced autograft as the gold standard, however, since its dissolution occurs rapidly in bodily fluids, meaning that the material cannot support long-term bone growth. Here, the polymer poly (ether ether ketone) (PEEK) was used to slow dissolution in in vitro physiological environments and augment the mechanical properties of the material. METHODS: PEEK/CS specimens were fabricated by combining powders of PEEK and CS with water, resulting in a hardening paste...
2017: Biomaterials Research
https://www.readbyqxmd.com/read/28527762/effects-of-rhamnolipids-on-microorganism-characteristics-and-applications-in-composting-a-review
#7
REVIEW
Binbin Shao, Zhifeng Liu, Hua Zhong, Guangming Zeng, Guansheng Liu, Mingda Yu, Yang Liu, Xin Yang, Zhigang Li, Zhendong Fang, Juntao Zhang, Chenghao Zhao
Biosurfactant rhmnolipids have been applied in many fields, especially in environmental bioremediation. According to previous researches, many research groups have studied the influence of rhamnolipids on microorganism characteristics and/or its application in composting. In this review, the effects of rhamnolipids on the cell surface properties of microorganisms was discussed firstly, such as cell surface hydrophobicity (CSH), electrical, surface compounds, etc. Moreover, the deeper mechanisms were also discussed, such as the effects of rhamnolipids on the structural characteristics and functional characteristics of the cell membrane, and the effects of rhamnolipids on the related enzymes and genes...
July 2017: Microbiological Research
https://www.readbyqxmd.com/read/28522758/regulation-of-erythropoiesis-after-normoxic-return-from-chronic-sustained-and-intermittent-hypoxia
#8
Jihyun Song, Krishna Sundar, Radhika Gangaraju, Josef T Prchal
Hypoxia increases erythropoiesis mediated by hypoxia-inducible transcription factors (HIF) which regulate erythropoietin (EPO) transcription. Neocytolysis is a physiological mechanism that corrects polycythemia from chronic sustained hypoxemia (CSH) by transient, preferential destruction of young RBCs after normoxia is restored. We showed that neocytolysis is caused by excessive mitochondrial-derived reactive oxygen species (ROS) in reticulocytes mediated by down-regulation of HIF-controlled BNIP3L regulated mitophagy and a decrease in RBC antioxidant catalase (CAT) in hypoxia-produced erythrocytes...
May 18, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28472690/nanoparticles-based-on-chitosan-hydrochloride-hyaluronic-acid-peg-containing-curcumin-in-vitro-evaluation-and-pharmacokinetics-in-rats
#9
Yurui Xu, Sajid Asghar, Liu Yang, Zhipeng Chen, Hongying Li, Wenwen Shi, Yibo Li, Qinqing Shi, Qineng Ping, Yanyu Xiao
Nanoparticles based on chitosan hydrochloride (CSH)-hyaluronic acid (HA)-PEG were prepared for delivering curcumin (CUR) (CUR-PNPs) to brain tumor. CUR-PNPs of 245.9nm and spherical morphology were obtained at optimized CSH/HA/PEG20000/CUR ratios with negative charge of about -27.2mV and EE of approximately 93.3%. Cytotoxicity studies showed that CUR-PNPs improved drug's anticancer activity in rat glioma cells (C6). The cellular uptake mechanism study showed active targeting of CUR-PNPs into C6 cells by HA mediated endocytosis...
May 1, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28449875/development-and-validation-of-a-quantitative-confirmatory-method-for-30-%C3%AE-lactam-antibiotics-in-bovine-muscle-using-liquid-chromatography-coupled-to-tandem-mass-spectrometry
#10
M Di Rocco, M Moloney, T O'Beirne, S Earley, B Berendsen, A Furey, M Danaher
A method was developed for the confirmatory and quantitative analysis of 30 β-lactam antibiotic residues in bovine muscle. The method includes 12 penicillins (amoxicillin, ampicillin, cloxacillin, dicloxacillin, mecillinam, methicillin, nafcillin, oxacillin, penicillin G, penicillin V, piperacillin, ticarcillin), 12 cephalosporins (cefacetrile, cefadroxil, cephalexin, cefalonium, cefazolin, cefoperazone, cefotaxime, cefquinome, cefuroxime, desacetyl cephapirin, desfuroylceftiofur cysteine disulfide, desfuroylceftiofur dimer), five carbapenems (biapenem, doripenem, ertapenem, imipenem, meropenem) and faropenem...
April 12, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/28441046/characterization-of-long-term-elution-of-platinum-from-carboplatin-impregnated-calcium-sulfate-hemihydrate-beads-in-vitro-by-two-distinct-sample-collection-methods
#11
Rachel J Tulipan, Heidi Phillips, Laura D Garrett, Levent Dirikolu, Mark A Mitchell
OBJECTIVE To characterize long-term elution of platinum from carboplatin-impregnated calcium sulfate hemihydrate (CI-CSH) beads in vitro by comparing 2 distinct sample collection methods designed to mimic 2 in vivo environments. SAMPLES 162 CI-CSH beads containing 4.6 mg of carboplatin (2.4 mg of platinum/bead). PROCEDURES For method 1, which mimicked an in vivo environment with rapid and complete fluid exchange, each of 3 plastic 10-mL conical tubes contained 3 CI-CSH beads and 5 mL of PBS solution. Eluent samples were obtained by evacuation of all fluid at 1, 2, 3, 6, 9, and 12 hours and 1, 2, 3, 6, 9, 12, 15, 18, 22, 26, and 30 days...
May 2017: American Journal of Veterinary Research
https://www.readbyqxmd.com/read/28405790/csh-guidelines-for-the-diagnosis-and-treatment-of-drug-induced-liver-injury
#12
EDITORIAL
Yue-Cheng Yu, Yi-Min Mao, Cheng-Wei Chen, Jin-Jun Chen, Jun Chen, Wen-Ming Cong, Yang Ding, Zhong-Ping Duan, Qing-Chun Fu, Xiao-Yan Guo, Peng Hu, Xi-Qi Hu, Ji-Dong Jia, Rong-Tao Lai, Dong-Liang Li, Ying-Xia Liu, Lun-Gen Lu, Shi-Wu Ma, Xiong Ma, Yue-Min Nan, Hong Ren, Tao Shen, Hao Wang, Ji-Yao Wang, Tai-Ling Wang, Xiao-Jin Wang, Lai Wei, Qing Xie, Wen Xie, Chang-Qing Yang, Dong-Liang Yang, Yan-Yan Yu, Min-de Zeng, Li Zhang, Xin-Yan Zhao, Hui Zhuang
Drug-induced liver injury (DILI) is an important clinical problem, which has received more attention in recent decades. It can be induced by small chemical molecules, biological agents, traditional Chinese medicines (TCM), natural medicines (NM), health products (HP), and dietary supplements (DS). Idiosyncratic DILI is far more common than intrinsic DILI clinically and can be classified into hepatocellular injury, cholestatic injury, hepatocellular-cholestatic mixed injury, and vascular injury based on the types of injured target cells...
May 2017: Hepatology International
https://www.readbyqxmd.com/read/28402014/advanced-treatment-technique-for-swine-wastewater-using-two-agents-thermally-polymerized-amorphous-silica-and-hydrated-lime-for-color-and-phosphorus-removal-and-sulfur-for-nitrogen-removal
#13
Teruaki Hasegawa, Yohei Kurose, Yasuo Tanaka
The efficacy of advanced treatment of swine wastewater using thermally polymerized, modified amorphous silica and hydrated lime (M-CSH-lime) for color and phosphorus removal and sulfur for nitrogen removal was examined with a demonstration-scale treatment plant. The color removal rate was approximately 78% at M-CSH-lime addition rates of > 0.055 wt/v%. The PO43--P removal rate exceeded 99.9% with > 0.023 wt/v%. pH of the effluent from the M-CSH-lime reactor increased with the addition rate till a maximum value of 12...
April 12, 2017: Animal Science Journal, Nihon Chikusan Gakkaihō
https://www.readbyqxmd.com/read/28397379/b-fahf-2-plus-oral-immunotherapy-oit-is-safer-and-more-effective-than-oit-alone-in-a-murine-model-of-concurrent-peanut-tree-nut-allergy
#14
Kamal D Srivastava, Ying Song, Nan Yang, Changda Liu, Ilan E Goldberg, Anna Nowak-Węgrzyn, Hugh A Sampson, Xiu-Min Li
BACKGROUND: Concurrent sensitization to peanut (PN) and tree nuts (TN), the most dangerous food allergies, is common. Current oral immunotherapy (OIT) is not fully satisfactory. OBJECTIVE: To determine if the herbal formula B-FAHF-2 (BF2) ameliorates PN/TN OIT adverse reactions and enhances persistence of a tolerant state. METHODS: Concurrently sensitized peanut, walnut (WN) and cashew (CSH) allergic mice received 1 day PN/WN/CSH rush OIT plus 3 weeks of maintenance dosing, with or without 3-weeks prior and 3-weeks BF2 co-treatment...
April 11, 2017: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28381142/crystal-storing-histiocytosis
#15
Preithy Uthamalingam, Sangita Mehta
Crystal-storing histiocytosis (CSH) is a rare histiocytic lesion, most often described in association with lymphoid malignancies, especially plasma cell myeloma or lymphomas associated with monoclonal gammopathy. A few cases have also been described in patients without an underlying lymphoid/plasmacytic neoplasm. The histiocytes are characterized by intralysosomal accumulation of crystals composed of whole or part of the immunoglobulin molecule. The pathobiology is largely unclear. It is a rare phenomenon and the available literature is restricted to case reports and a few case series...
February 1, 2017: International Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28359924/prolonged-cerebral-hyperperfusion-and-subcortical-low-intensity-on-fluid-attenuated-inversion-recovery-images-unusual-manifestation-after-removal-of-organized-chronic-subdural-hematoma
#16
Satoru Tanioka, Yu Sato, Kazuhiko Tsuda, Shigehiko Niwa, Hidenori Suzuki
BACKGROUND: Cerebral hyperperfusion sometimes occurs after removal of chronic subdural hematoma (CSH) and usually resolves within a few days without any symptoms. Subcortical low intensity (SCLI) on fluid-attenuated inversion recovery (FLAIR) magnetic resonance images is rare and has been reported in some diseases other than CSH. A case of organized CSH who suffered prolonged neurologic deterioration, SCLI, and cerebral hyperperfusion postoperatively is described. CASE DESCRIPTION: An 81-year-old man, presenting with left hemiparesis, underwent craniotomy for right organized CSH after 2 burr-hole surgeries...
May 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28340187/biofilm-adherence-and-hydrophobicity-as-virulence-factors-in-malassezia-furfur
#17
Letizia Angiolella, Claudia Leone, Florencia Rojas, Javier Mussin, María de Los Angeles Sosa, Gustavo Giusiano
Malassezia species are natural inhabitants of the healthy skin. However, under certain conditions, they may cause or exacerbate several skin diseases. The ability of this fungus to colonize or infect is determined by complex interactions between the fungal cell and its virulence factors. This study aims to evaluate "in vitro" the hydrophobicity levels, the adherence on a plastic surface and the biofilm formation of 16 clinical isolates of Malassezia furfur. Cellular surface hydrophobicity (CSH) levels were determined by two-phase system...
March 9, 2017: Medical Mycology: Official Publication of the International Society for Human and Animal Mycology
https://www.readbyqxmd.com/read/28298123/caesium-hydride-ms-caspt2-potential-energy-curves-and-a-1-%C3%AE-%C3%A2-x-1-%C3%AE-absorption-emission-spectroscopy
#18
Ján Škoviera, Pavel Neogrády, Florent Louis, Michal Pitoňák, Ivan Černušák
Correlated ab initio methods (CASPT2 and CCSD(T)) in conjunction with the ANO-RCC basis sets were used to calculate potential energy curves (PECs) of the ground, valence, and Rydberg electronic states of CsH with the inclusion of the scalar relativistic effects. The spectroscopic constants of bound states were calculated from the PECs and compared with previous theoretical and/or available experimental data. Absorption and emission spectra arising from the transition between X(1)Σ(+) and A(1)Σ(+) states were modelled using vibrational and rotational energy levels and corresponding nuclear wave functions obtained via the direct numerical integration of one-dimensional rovibrational Schrödinger equation in the CASPT2/ANO-RCC electronic potentials...
March 14, 2017: Journal of Chemical Physics
https://www.readbyqxmd.com/read/28298046/hypofractionated-stereotactic-radiosurgery-a-new-treatment-strategy-for-giant-cavernous-sinus-hemangiomas
#19
Xin Wang, Huaguang Zhu, Jonathan Knisely, Guanghai Mei, Xiaoxia Liu, Jiazhong Dai, Ying Mao, Li Pan, Zhiyong Qin, Enmin Wang
OBJECTIVE Cavernous sinus hemangiomas (CSHs) are rare benign vascular tumors that arise from the dural venous sinuses lateral to the sella. Stereotactic radiosurgery (SRS) has emerged as a principal alternative to microresection for small- and medium-sized CSHs. Resection is a reasonable option for large (3-4 cm in diameter) and giant (> 4 cm in diameter) CSHs. However, management of giant CSHs remains a challenge for neurosurgeons because of the high rates of morbidity and even death that stem from uncontrollable and massive hemorrhage during surgery...
March 10, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28289661/early-experience-with-a-partial-stapled-hemorrhoidopexy-for-treating-patients-with-grades-iii-iv-prolapsing-hemorrhoids
#20
Hyeonseok Jeong, Sunghwan Hwang, Kil O Ryu, Jiyong Lim, Hyun Tae Kim, Hye Mi Yu, Jihoon Yoon, Ju-Young Lee, Hyoung Rae Kim, Young Gil Choi
PURPOSE: Circular stapled hemorrhoidopexy (CSH) is widely used to treat patients with grades III-IV hemorrhoids because of less pain and short hospital stay. However, this procedure is associated with some complications, such as urge to defecate, anal stenosis, staple line dehiscence, abscess and sepsis. To avoid these complications, surgeons perform a partial stapled hemorrhoidopexy (PSH). The aim of this study is to present our early experience with the PSH. METHODS: We retrospectively reviewed the medical records of 58 patients with hemorrhoids who were treated with a PSH at Busan Hang-Un Hospital from January 2016 to June 2016...
February 2017: Annals of Coloproctology
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