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Junting Yang, Shunwen Zhang, Jiangdong Wu, Jie Zhang, Jiangtao Dong, Peng Guo, Suyu Tang, Wanjiang Zhang, Fang Wu
BACKGROUND: Sepsis is a life-threatening organ dysfunction caused the dysregulation of host inflammatory response and immunosuppression to infection Early recognition and intervention are hence of paramount importance. In this respect the "sepsis bundle" was proposed in 2004 to be instituted in cases of suspected sepsis. OBJECTIVE AND HYPOTHESIS: We hypothesised that a combination treatment of the sepsis bundle with cyclophosphamide would improve the function of the intestinal mucosa and enhance survival in rats with induced sepsis...
June 12, 2018: Biomedical Papers of the Medical Faculty of the University Palacký, Olomouc, Czechoslovakia
Noa Rymer-Haskel, Irit Schushan-Eisen, Yigal Hass, Roni Rahav, Ayala Maayan-Metzger, Israel Hendler
INTRODUCTION: Advanced maternal age (AMA) is associated with increased risk for preeclampsia, however, a paucity of data exists regarding the characteristics of the disease in this age group. Our aim was to compare the characteristics and severity of preeclampsia in older and younger gravidas. MATERIALS & METHODS: A retrospective, small case control study of women diagnosed with preeclampsia in a single tertiary care center. Nulliparous women ≥40 years old with singleton pregnancies ≥ 24 0/7 weeks' gestation were matched (1:2 ratio) with young (20-34 years old) nulliparous women...
June 1, 2018: European Journal of Obstetrics, Gynecology, and Reproductive Biology
Carmen T Mulet, Luis E Arroyo-Mora, Lorena A Leon, Elizabeth Gnagy, Anthony P DeCaprio
Methylphenidate (MPH), which is metabolized into ritalinic acid (RA), is an amphetamine derivative largely used in the treatment of attention-deficit hyperactivity disorder, a neurological condition commonly diagnosed in early childhood. Ensuring that patients comply with clinical treatment is crucial and compliance is generally monitored in blood or urine specimens which, especially in the case of children, can be challenging to obtain on a repetitive basis. Here we report validation of a specific, non-invasive, and rapid dilute-and-shoot analytical method for the detection and quantitation of MPH and RA in oral fluid (OF)...
June 20, 2018: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
Brompoj Prutthiwanasan, Leena Suntornsuk
A simple micellar electrokinetic chromatography (MEKC), using cetyltrimethyl ammonium bromide (CTAB) as micelles, for the determination of ciprofloxacin (CIP), enrofloxacin (ENR), norfloxacin (NOR) and ofloxacin (OFL) residues in surface water was developed. Peak Master was used for predicting amounts of analyte ionic forms to reduce numbers of tedious experiments in optimizing the analyte capacity factors. A baseline separation (Rs  > 2.8) of the analytes was achieved in 7 min using 15 mM sodium dihydrogen phosphate (pH 6...
June 18, 2018: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
Anne Laure Castel, Manuel Toledano, Christophe Tribouilloy, François Delelis, Amandine Mailliet, Nathalie Marotte, Raphaëlle A Guerbaai, Franck Levy, Pierre Graux, Pierre-Vladimir Ennezat, Sylvestre Maréchaux
BACKGROUND: Whether echocardiography platform and analysis software impact left ventricular (LV) volumes, ejection fraction (EF), and stroke volume (SV) by transthoracic tridimensional echocardiography (3DE) has not yet been assessed. Hence, our aim was to compare 3DE LV end-diastolic and end-systolic volumes (EDV and ESV), LVEF, and SV obtained with echocardiography platform from 2 different manufacturers. METHODS: 3DE was performed in 84 patients (65% of screened consecutive patients), with equipment from 2 different manufacturers, with subsequent off-line postprocessing to obtain parameters of LV function and size (Philips QLAB 3DQ and General Electric EchoPAC 4D autoLVQ)...
May 27, 2018: American Heart Journal
Mojtaba Shafiee, Mahsa Ahmadnezhad, Maryam Tayefi, Soheil Arekhi, Hassanali Vatanparast, Habibollah Esmaeili, Mohsen Moohebati, Gordon A Ferns, Naghmeh Mokhber, Seyed Rafie Arefhosseini, Majid Ghayour-Mobarhan
BACKGROUND: Depression and anxiety are significantly associated with systemic inflammation. Moreover, oxidative stress resulting from a disturbance in the prooxidant-antioxidant balance is linked to inflammation-related conditions. Therefore, depression/anxiety symptoms may also be associated with oxidative stress. OBJECTIVE: To examine the association between depression/anxiety symptoms and serum prooxidant-antioxidant balance (PAB) in adults who participated in a large population-based, cross-sectional study...
June 13, 2018: Journal of Affective Disorders
Elvio D Amato, Adrian Covaci, Raewyn M Town, Jonas Hereijgers, Ben Bellekens, Valentina Giacometti, Tom Breugelmans, Maarten Weyn, Freddy Dardenne, Lieven Bervoets, Ronny Blust
Passive sampling with in situ devices offers several advantages over traditional sampling methods (i.e., discrete spot sampling), however, data interpretation from conventional passive samplers is hampered by difficulties in estimating the thickness of the diffusion layer at the sampler/medium interface (δ), often leading to inaccurate determinations of target analyte concentrations. In this study, the performance of a novel device combining active and passive sampling was investigated in the laboratory. The active-passive sampling (APS) device is comprised of a diffusion cell fitted with a pump and a flowmeter...
June 14, 2018: Chemosphere
Hangxing Jin, Lushi Lian, Huaxi Zhou, Shuwen Yan, Weihua Song
Domoic acid (DA) is a neurotoxin generated by several diatom species in harmful algae blooms (HABs). We report the photo-induced transformation products (TPs) and degradation mechanisms of DA in dissolved organic matter (DOM)-rich freshwater and brackish water. High-resolution quadrupole time-of-flight mass spectrometry (QTOF-MS) and the multivariate statistical strategy orthogonal partial least-squares discriminant analysis (OPLS-DA) identified 36 and 23 potential TPs in DOM-rich freshwater and brackish water, respectively...
June 14, 2018: Chemosphere
Wei Yuan, Zhiwei Gong, Guanghui Wang, Wenting Zhou, Yi Liu, Xuemin Wang, Mi Zhao
In the present study, a sodium hydroxide-methanol solution (SMs) pretreatment of corn stover was described to overcome biomass recalcitrance for the first time. Effects of sodium hydroxide loading, solid-to-liquid ratio, processing time and temperature on enzymatic saccharification were studied in detail. The SMs pretreatment could significantly enhance the enzyme accessibility of corn stover, minimize the degradation of sugar polymers, and decrease the energy consumption. 97.5% glucan and 83.5% xylan were preserved in the regenerated corn stover under the optimal condition...
June 14, 2018: Bioresource Technology
A P A Cassuriaga, B C B Freitas, M G Morais, J A V Costa
The current study aimed to evaluate if the addition of pentoses along with variations in light intensity and photoperiod can stimulate the production of polyhydroxybutyrate (PHB) and other biomolecules by Chlorella fusca LEB 111. The variables evaluated were the addition of xylose and arabinose as sources of organic carbon, different photoperiods (18 h, 12 h and 6 h light) and variations in light intensities (58, 28 and 9 μmolphotons  m-2  s-1 ). The highest PHB accumulation (17.4% w w-1 ) and protein production (53...
June 11, 2018: Bioresource Technology
Caixia Wang, Xinyao Su, Wei Sun, Sijing Zhou, Junyu Zheng, Mengting Zhang, Mengchu Sun, Jianping Xue, Xia Liu, Jianmin Xing, Shilin Chen
In this study, six different herbal-extraction residues were evaluated for succinic acid production in terms of chemical composition before and after dilute acid pretreatment (DAP) and sugar release performance. Chemical composition showed that pretreated residues of Glycyrrhiza uralensis Fisch (GUR) and Morus alba L. (MAR) had the highest cellulose content, 50% and 52%, respectively. Higher concentrations of free sugars (71.6 g/L total sugar) and higher hydrolysis yield (92%) were both obtained under 40 FPU/g DM at 10% solid loading for GUR...
June 15, 2018: Bioresource Technology
O M M Abdelwahab, G F Ricci, A M De Girolamo, F Gentile
In this study, the simulations generated by two of the most widely used hydrological basin-scale models, the Annualized Agricultural Non-Point Source (AnnAGNPS) and the Soil and Water Assessment Tool (SWAT), were compared in a Mediterranean watershed, the Carapelle (Apulia, Southern Italy). Input data requirements, time and efforts needed for input preparation, strength and weakness points of each model, ease of use and limitations were evaluated in order to give information to users. Models were calibrated and validated at monthly time scale for hydrology and sediment load using a four year period of observations (streamflow and suspended sediment concentrations)...
June 20, 2018: Environmental Research
Angelo Earvin Sy Choi, Hung Suck Park
This paper presents the development and evaluation of fuzzy multi-objective optimization for decision-making that includes the process optimization of anaerobic digestion (AD) process. The operating cost criteria which is a fundamental research gap in previous AD analysis was integrated for the case study in this research. In this study, the mixing ratio of food waste leachate (FWL) and piggery wastewater (PWW), calcium carbonate (CaCO3 ) and sodium chloride (NaCl) concentrations were optimized to enhance methane production while minimizing operating cost...
June 20, 2018: Journal of Environmental Management
Kun Li, Wencheng Ma, Hongjun Han, Chunyan Xu, Yuxing Han, Dexin Wang, Weiwei Ma, Hao Zhu
The selective extraction and concentration of salt from coal gasification brine (CGB) by nanofiltration membranes is a promising technology to achieve near-zero liquid discharge of coal gasification wastewater. To investigate the feasibility of recovery of salts and the interaction of organic compounds, multivalent ions and monovalent ions on the rejection ratio, three nanofiltration membranes (OWNF1, NF270 and Desal-5 DK) with an 1812 spiral-wound module were used in crossflow filtration. The rejection mechanism was analyzed by comparing the rejection performance as a function of the operation pressure (increasing from 1...
June 20, 2018: Journal of Environmental Management
E Ventura, A Futuro, S C Pinho, M F Almeida, J M Dias
The recovery of electronic waste to obtain secondary raw materials is a subject of high relevance in the context of circular economy. Accordingly, the present work relies on the evaluation of mining separation/concentration techniques (comminution, size screening, magnetic separation and gravity concentration) alone as well as combined with thermal pre-treatment to recover gold and copper from Waste Printed Circuit Boards. For that purpose, Waste Printed Circuit Boards were subjected to physical processing (comminution, size screening in 6 classes from <0...
June 20, 2018: Journal of Environmental Management
Kaisar Kushibar, Sergi Valverde, Sandra González-Villà, Jose Bernal, Mariano Cabezas, Arnau Oliver, Xavier Lladó
Sub-cortical brain structure segmentation in Magnetic Resonance Images (MRI) has attracted the interest of the research community for a long time as morphological changes in these structures are related to different neurodegenerative disorders. However, manual segmentation of these structures can be tedious and prone to variability, highlighting the need for robust automated segmentation methods. In this paper, we present a novel convolutional neural network based approach for accurate segmentation of the sub-cortical brain structures that combines both convolutional and prior spatial features for improving the segmentation accuracy...
June 15, 2018: Medical Image Analysis
Shuyan Zhao, Tiankun Liang, Tao Zhou, Dongqi Li, Bohui Wang, Jingjing Zhan, Lifen Liu
Perfluorooctane sulfonamide (FOSA) is an important perfluorooctane sulfonate (PFOS) precursor used for commercial applications. In order to investigate the transformation and responses of selected antioxidant and degradation enzymes of FOSA in the plants, in vivo exposure of soybean (Glycine max L. Merrill) and pumpkin (Cucurbita maxima L.) were conducted in the solution-plant microcosms. FOSA was readily taken up by soybean and pumpkin roots and translocated to shoots, and metabolized to PFOS, perfluorohexane sulfonate (PFHxS) and perfluorobutane sulfonate (PFBS)...
June 20, 2018: Ecotoxicology and Environmental Safety
Andrea Gredelj, Alberto Barausse, Laura Grechi, Luca Palmeri
Over the past decades, per- and polyfluoroalkyl substances (PFASs) found in environmental matrices worldwide have raised concerns due to their toxicity, ubiquity and persistence. A widespread pollution of groundwater and surface waters caused by PFASs in Northern Italy has been recently discovered, becoming a major environmental issue, also because the exact risk for humans and nature posed by this contamination is unclear. Here, the Po River in Northern Italy was selected as a study area to assess the ecological risk posed by perfluoroalkyl acids (PFAAs), a class of PFASs, considering the noticeable concentration of various PFAAs detected in the Po waters over the past years...
June 20, 2018: Environment International
Gustavo L A de Oliveira, Jans B Izidoro, Felipe Ferré, Samuel R A E Sousa, Francisco A Acurcio
OBJECTIVES: To estimate the average price of oral hypoglycemic agents provided by the Brazilian health system (SUS) and to compare them to other public health systems. METHODS: Cross-sectional study about drug prices purchased by Belo Horizonte (municipal level), Minas Gerais (state level) and federal institutions in January and February of 2014. Average prices were calculated by defined daily dosage (DDD) and were compared to the management levels and the program "Aqui Tem Farmácia Popular" (ATFP)...
June 20, 2018: Value in Health Regional Issues
Boman Chen, Min Cheng, Siqi Hong, Shuang Liao, Jiannan Ma, Tingsong Li, Li Jiang
PURPOSE: To assess the clinical outcome and evolution of recurrent afebrile seizures in children initially diagnosed with benign convulsions associated with mild gastroenteritis (CwG). METHODS: We reviewed and analyzed the medical records of 37 patients who were diagnosed as CwG at onset, followed by recurrent afebrile seizures and followed up for at least 24 months. RESULTS: The follow-up period ranged from 2 to 7 years (median, 40.1 months)...
May 30, 2018: Seizure: the Journal of the British Epilepsy Association
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