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Chunhai Yi, Qianqian Lu, Yun Wang, Yixuan Wang, Bolun Yang
In this paper, the decomposition of Rhodamine B (RhB) by hydrodynamic cavitation (HC), acoustic cavitation (AC) and the combination of these individual methods (HAC) have been investigated. The degradation of 20 L RhB aqueous solution was carried out in a self-designed HAC reactor, where hydrodynamic cavitation and acoustic cavitation could take place in the same space simultaneously. The effects of initial concentration, inlet pressure, solution temperature and ultrasonic power were studied and discussed...
May 2018: Ultrasonics Sonochemistry
Yan Lu, Lianjie Meng, Yan Gao, Dongli Liao, Yongxin Li, Yongxing Ai, Yuqin Ma, Cong Yu
Metal ions sensing play critical roles in environmental monitoring and in biology. In this assay, we report the development of a facile fluorometric method for the sensing of Ag+ ions via the in situ formation of metal coordination polymer, based on the selective interactions of GSH with Ag+ . The formation of coordination polymer with net multiple negative charges in an aqueous buffer solution (Tris-HAc, pH 9.0) resulted in aggregation and fluorescence quenching of a cationic perylene probe. The difference in emission intensity spurred us to develop a new strategy for sensing Ag+ ions...
March 12, 2018: Analytical Biochemistry
Nicholas A Bedard, Andrew J Pugely, Michael McHugh, Nathan Lux, Jesse E Otero, Kevin J Bozic, Yubo Gao, John J Callaghan
BACKGROUND: Use of large clinical and administrative databases for orthopaedic research has increased exponentially. Each database represents unique patient populations and varies in their methodology of data acquisition, which makes it possible that similar research questions posed to different databases might result in answers that differ in important ways. QUESTIONS/PURPOSES: (1) What are the differences in reported demographics, comorbidities, and complications for patients undergoing primary TKA among four databases commonly used in orthopaedic research? (2) How does the difference in reported complication rates vary depending on whether only inpatient data or 30-day postoperative data are analyzed? METHODS: Patients who underwent primary TKA during 2010 to 2012 were identified within the National Surgical Quality Improvement Programs (NSQIP), the Nationwide Inpatient Sample (NIS), the Medicare Standard Analytic Files (MED), and the Humana Administrative Claims database (HAC)...
January 2018: Clinical Orthopaedics and related Research
Andrzej Rafal Hellmann, Salvatore Paiella, Justyna Kostro, Iwona Marek, Krystian Adrych, Zbigniew Śledziński, Stanisław Hać, Claudio Bassi
OBJECTIVES: The primary aim of this study was to determine the blood levels of SPINK1 in patients with chronic pancreatitis (CP) submitted to surgical or endoscopic decompression of pancreatic duct (PD). Additionally, we measured trypsin activity levels. METHODS: Two groups were identified, surgical (group A) and endoscopic (group B). Levels of SPINK1 and trypsin activity were measured at baseline and 6 months after pancreatic duct decompression and then compared within the groups...
March 3, 2018: Pancreatology: Official Journal of the International Association of Pancreatology (IAP) ... [et Al.]
Xiao Li, Chao-Qun Xu, Yu-Di Luo, Song Zhang, Cong Huang, Kun Zou, Ya-Li Tan, Ye-Xu Wu, Zhang-Shuang Deng
The computational fluid dynamics (CFD) software package Fluent was utilized to simulate the flow field of Escherichia coli (E. coli) BL21 fermentation in a 50 L automatic bioreactor for producing α-cyclodextrin glycosyltransferase (α-CGTase) in this study. 4-down-pumping propeller (4DPP), 6-curved-blade disc turbine (6CBDT), and Rushton turbine (RT) were assembled to form eight impeller combinations (C1-C8). Through flow field simulating, four referential impeller combinations, in which C6, C7, and C8 were three layers stirring blades and C1 as a control, were selected to carry out batch fermentation experiments (TC1, TC6, TC7, and TC8) for validation...
March 6, 2018: Bioprocess and Biosystems Engineering
Michael Bennaim, Robert E Shiel, Christopher Forde, Carmel T Mooney
BACKGROUND: Dogs with hyperadrenocorticism (HAC) may be more mildly affected at the time of diagnosis today, which could influence the prevalence of associated clinical and clinicopathological abnormalities and diagnostic test performance. Different low-dose dexamethasone suppression test (LDDST) result patterns have not been evaluated individually. OBJECTIVES: To assess the current features of HAC and evaluate if the diagnostic test performance of individual LDDST result patterns differ...
March 2, 2018: Journal of Veterinary Internal Medicine
Samuel Soltoff, Lane Koenig, Akinluwa A Demehin, Nancy E Foster, Christopher Vaz
Centers for Medicare and Medicaid Services (CMS) estimated that Medicare's Hospital-Acquired Condition Reduction Program (HAC-RP) would reduce hospital payments by $364 million in fiscal year 2016. Although observers have questioned the validity of certain HAC-RP measures, less attention has been paid to the determination of low-performing hospitals (bottom quartile) and the reliability of penalty assignment. This study used publicly available data from CMS's Hospital Compare to simulate the consistency of hospitals' scores and the assignment of penalties under repeated measurement with no change in each hospital's underlying quality...
February 16, 2018: Journal for Healthcare Quality: Official Publication of the National Association for Healthcare Quality
L F Mendes, H Katagiri, W L Tam, Y C Chai, L Geris, S J Roberts, F P Luyten
BACKGROUND: Chondrogenic mesenchymal stem cells (MSCs) have not yet been used to address the clinical demands of large osteochondral joint surface defects. In this study, self-assembling tissue intermediates (TIs) derived from human periosteum-derived stem/progenitor cells (hPDCs) were generated and validated for stable cartilage formation in vivo using two different animal models. METHODS: hPDCs were aggregated and cultured in the presence of a novel growth factor (GF) cocktail comprising of transforming growth factor (TGF)-β1, bone morphogenetic protein (BMP)2, growth differentiation factor (GDF)5, BMP6, and fibroblast growth factor (FGF)2...
February 21, 2018: Stem Cell Research & Therapy
Jihyun An, Seong Kyun Na, Ju Hyun Shim, Yang Soon Park, Mi Jung Jun, Joo Ho Lee, Gi-Won Song, Hac Chu Lee, Eunsil Yu
BACKGROUND AND OBJECTIVES: Deregulation of methionine adenosyltransferase (MAT) is involved in hepatocarcinogenesis. This study aimed to investigate the prognostic implications of the level of histological MAT1A and MAT2A in patients with resected hepatocellular carcinoma (HCC). METHODS: A total of 210 patients with HCC who underwent curative resection between 2004 and 2011 were included. The levels of MAT proteins were immunohistochemically measured. RESULTS: MAT1A and MAT2A were over-expressed in 134 (63...
February 15, 2018: Journal of Surgical Oncology
Karolina Pierzynowska, Lidia Gaffke, Aleksandra Hać, Jagoda Mantej, Natalia Niedziałek, Joanna Brokowska, Grzegorz Węgrzyn
Huntington's disease (HD) is a monogenic disorder, caused by mutations in the HTT gene which result in expansion of CAG triplets. The product of the mutated gene is misfolded huntingtin protein that forms aggregates leading to impairment of neuronal function, neurodegeneration, motor abnormalities and cognitive deficits. No effective cure is currently available for HD. Here we studied effects of genistein (trihydroxyisoflavone) on a HD cellular model consisting of HEK-293 cells transfected with a plasmid bearing mutated HTT gene...
February 12, 2018: Neuromolecular Medicine
Petra Muri, Romana Marinšek-Logar, Petar Djinović, Albin Pintar
This study assesses the impact of different support materials (Mutag BioChip™, expanded clay and activated carbon) on microbial hydrogen production in an anaerobic packed-bed reactor (APBR) treating synthetic waste water containing glucose as the main carbon source at low pH value. The APBRs were inoculated with acid pretreated anaerobic sludge and operated at pH value of 4±0.2 and hydraulic retention time (HRT) of 3h. The maximum hydrogen yield of 1.80mol H2/mol glucose was achieved for the APBR packed with Mutag BioChip™ (R1), followed by expanded clay (R2, 1...
April 2018: Enzyme and Microbial Technology
Guangjie Yuan, Guangyuan Liu, Dongtao Wei, Gaoyuan Wang, Qiang Li, Mingming Qi, Shifu Wu
Recent research has demonstrated that resting-state functional connectivity (RS-FC) within the human auditory cortex (HAC) is frequency-selective, but whether RS-FC between the HAC and other brain areas is differentiated by frequency remains unclear. Three types of data were collected in this study, including resting-state functional magnetic resonance imaging (fMRI) data, task-based fMRI data using six pure tone stimuli (200, 400, 800, 1,600, 3,200, and 6,400 Hz), and structural imaging data. We first used task-based fMRI to identify frequency-selective cortical regions in the HAC...
February 7, 2018: Human Brain Mapping
Sheree A Spiteri, Dana Lee Olstad, Julie L Woods
BACKGROUND: Food manufacturers have made public statements and voluntary commitments, such as the Healthier Australia Commitment (HAC), to improve the nutritional quality of foods. However, limited information about the nutritional quality or healthfulness of new products makes it difficult to determine if manufacturers are doing this. The purpose of this study was to assess the healthfulness of new food products released into the Australian retail market in 2015, and whether those companies who were HAC members released healthier food options compared to non-HAC members...
February 7, 2018: BMC Public Health
Daisuke Satoh, Satoshi Abe, Kaoru Kobayashi, Yoshihiro Nakajima, Mitsuo Oshimura, Yasuhiro Kazuki
In the earliest stage of drug discovery/development, various cell-based models and animal models were used for the prediction of human pharmacokinetics and toxicokinetics. Unfortunately, drugs under development are often discontinued because their nonclinical results do not extrapolate to human clinical studies in relation to either safety or efficacy. Therefore, it is important to improve the time- and cost-effectiveness of drug development. This might be achieved by developing new technologies including pharmacokinetics and toxicokinetics models that use human and mouse artificial chromosome vectors (HACs/MACs)...
January 11, 2018: Drug Metabolism and Pharmacokinetics
Victor Simmet, Margot Noblecourt, Thibaut Lizée, Benjamin Morvant, Sylvie Girault, Patrick Soulié, Olivier Capitain
Hepatoid adenocarcinoma (HAC) is a rare and aggressive cancer subtype with a poor prognosis under metastatic conditions. Currently, there is no specific chemotherapy treatment protocol for advanced stages of the disease. This review evaluates two cases of HAC of gastric cardia with synchronous liver metastasis, which were successfully treated by chemotherapy with cisplatin (25 mg/m2 each day) (day 1 to day 3) and etoposide (100 mg/m2) (day 1 to day 3), every three weeks. A structured literary evaluation and reviewed pertinent articles are additionally presented to analyse the different approaches for the treatment of metastatic HAC (mHAC)...
January 2018: Oncology Letters
Melika Sarem, Neha Arya, Miriam Heizmann, Axel T Neffe, Andrea Barbero, Tim P Gebauer, Ivan Martin, Andreas Lendlein, V Prasad Shastri
The limited capacity of cartilage to heal large lesions through endogenous mechanisms has led to extensive effort to develop materials to facilitate chondrogenesis. Although physical-chemical properties of biomaterials have been shown to impactin vitro chondrogenesis, whether these findings are translatable in vivo is subject of debate. Herein, architectured 3D hydrogel scaffolds (ArcGel) (produced by crosslinking gelatin with ethyl lysine diisocyanate (LDI)) were used as a model system to investigate the interplay between scaffold mechanical properties and degradation on matrix deposition by human articular chondrocytes (HAC) from healthy donorsin vitroandin vivo...
January 26, 2018: Acta Biomaterialia
Marco Cascella, Sabrina Bimonte, Antonio Barbieri, Vitale Del Vecchio, Domenico Caliendo, Vincenzo Schiavone, Roberta Fusco, Vincenza Granata, Claudio Arra, Arturo Cuomo
Meat is a crucial nutrient for human health since it represents a giant supply of proteins, minerals, and vitamins. On the opposite hand, the intake of red and processed meat is taken into account dangerous due to its potential of carcinogenesis and cancer risk improvement, particularly for colorectal cancer (CRC), although it has been reported that also the contaminations of beef infected by oncogenic bovine viruses could increase colorectal cancer's risk. Regarding the mechanisms underlying the potential carcinogenicity of red and processed meat, different hypotheses have been proposed...
2018: Infectious Agents and Cancer
Masakazu Fujimoto, Ibu Matsuzaki, Masaru Nishino, Yoshifumi Iwahashi, Kenji Warigaya, Fumiyoshi Kojima, Kazuo Ono, Shin-Ichi Murata
AIMS: α-Fetoprotein (AFP)-producing gastric carcinoma (AFPGC) is one of the most aggressive GC subtypes. Frequent expression of human epidermal growth factor receptor 2 (HER2) has previously been reported in hepatoid adenocarcinoma (HAC), a major histological subtype of AFPGC originating from common-type GC (CGC). However, HER2 expression levels in other AFPGC histological subtypes are unknown. In this study, we analysed HER2 expression in GCs with primitive phenotypes in addition to HAC...
January 5, 2018: Journal of Clinical Pathology
Babak Bohlouli, Terri Jackson, Marcello Tonelli, Brenda Hemmelgarn, Scott Klarenbach
BACKGROUND: Patients with CKD are at increased risk of potentially preventable hospital acquired complications (HACs). Understanding the economic consequences of preventable HACs, may define the scope and investment of initiatives aimed at prevention. METHODS: Adult patients hospitalized from April, 2003 to March, 2008 in Alberta, Canada comprised the study cohort. Healthcare costs were determined and categorized into 'index hospitalization' including hospital cost and in-hospital physician claims, and 'post discharge' including ambulatory care cost, physician claims, and readmission costs from discharge to 90 days...
December 28, 2017: BMC Nephrology
Avtar Singh Matharu, Suleiman Ahmed, Badriya Al-Monthery, Duncan Macquarrie, Yoon-Sik Lee, Yohan Kim
: Iron-nitrogen heterocyclic carbenes (Fe-NHCs) have come to the fore because of their ability to be employed in diverse catalytic applications ranging from C-C cross-coupling and C-X bond formation to substitution, reduction, polymerization, and dehydration. The detailed synthesis, characterisation and application of novel heterogeneous Fe-NHC catalysts immobilised on mesoporous expanded starch and Starbon™ 350 for facile fructose to HMF conversion is reported. Both catalyst types showed good performance for the dehydration of fructose to HMF when the reaction was explored at 100 ◦C and varying time (10 min, 20 min, 0...
December 27, 2017: ChemSusChem
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