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https://www.readbyqxmd.com/read/28927136/low-risk-population-among-patients-with-tumor-node-metastasis-stage-iii-iv-oral-squamous-cell-carcinoma
#1
Tohru Ikeda, Sachiko Seki, Mutsunori Fujiwara, Masaaki Matsuura, Yuu Ozaki-Honda, Shuichi Fujita, Hisazumi Ikeda, Masahiro Umeda, Izumi Asahina
A novel system auxiliary to the Union for International Cancer Control classification may allow the prognosis of patients with malignant tumors at similar stages to be predicted, as currently this is challenging. The present study generated a novel system to predict populations at low risk among patients with stage III/IV oral squamous cell carcinoma (OSCC). A total of 41 patients who were diagnosed at stages III/IV OSCC and underwent surgical tumor resection were analyzed. Band-like or follicular lymphocyte infiltration, intraepithelial micro-abscess formation and natural killer (NK) cell infiltration were histopathologically evaluated...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28917795/portable-near-infrared-spectroscopy-applied-to-quality-control-of-brazilian-coffee
#2
Radigya M Correia, Flavia Tosato, Eloilson Domingos, Rayza R T Rodrigues, Luiz Felipe M Aquino, Paulo R Filgueiras, Valdemar Lacerda, Wanderson Romão
The use of portable micro-spectrometers such as a micro near infrared region (microNIR) spectrometer is a promising technique for solving analytical problems in several areas of science. This work evaluated the potential of microNIR in quality control of Arabica coffee. Arabica coffee has a high commercial value product, motivating the development of analytical methods with high sensitivity and accuracy for detection of its adulteration. Herein, microNIR was successfully used to determine the quality of Arabica coffee by identification and quantification of adulterations such as Robusta coffee (in different roasting levels), as well as corn, peels, and sticks...
January 1, 2018: Talanta
https://www.readbyqxmd.com/read/28917750/portable-near-infrared-spectroscopy-applied-to-fuel-quality-control
#3
Radigya M Correia, Eloilson Domingos, Vagne M Cáo, Brenda R F Araujo, Sthefany Sena, Layla U Pinheiro, André M Fontes, Luiz Felipe M Aquino, Ernesto C Ferreira, Paulo R Filgueiras, Wanderson Romão
Fuel quality control has gained interest in many countries owing to the potential damage of low-quality fuel to engines, the environment, and economy. Thus, the application of analytical techniques to verify quality control of fuels has become crucial. The portable micro-spectrometer in the near infrared region (microNIR) has gained credibility as a successful analytical technique in several quality control sectors. The possibility of real-time analysis using a nondestructive and reliable method is the main advantage of this methodology...
January 1, 2018: Talanta
https://www.readbyqxmd.com/read/28917199/enhanced-phosphorus-and-ciprofloxacin-removal-in-a-modified-baf-system-by-configuring-fe-c-micro-electrolysis-investigation-on-pollutants-removal-and-degradation-mechanisms
#4
Longlong Zhang, Qinyan Yue, Kunlun Yang, Pin Zhao, Baoyu Gao
A modified biological aerated filter (BAF) system configured Fe-C micro electrolysis was applied to enhance phosphorus and ciprofloxacin (CIP) removal. A novel sludge ceramic and sintering ferric-carbon ceramic (SFC) were separately packed into a lab-scale BAF and Fe-C micro electrolysis reactor. The BAF and Fe-C micro electrolysis coupled system was operated about 230days. The enhancement of phosphorus and ciprofloxacin removals by Fe-C micro electrolysis, the degradation mechanisms of CIP and the variations of microbial population were investigated...
September 8, 2017: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/28905208/current-total-knee-designs-does-baseplate-roughness-or-locking-mechanism-design-affect-polyethylene-backside-wear
#5
Zachary W Sisko, Matthew G Teeter, Brent A Lanting, James L Howard, Richard W McCalden, Douglas D Naudie, Steven J MacDonald, Edward M Vasarhelyi
BACKGROUND: Tibial baseplate roughness and polyethylene-insert micromotion resulting from locking-mechanism loosening can lead to polyethylene backside wear in TKAs. However, many retrieval studies examining these variables have evaluated only older TKA implant designs. QUESTIONS: We used implant-retrieval analysis to examine if there were differences in: (1) backside damage scores, (2) backside damage modes, and (3) backside linear wear rates in five TKA implant designs owing to differing baseplate surface roughness and locking mechanisms...
September 13, 2017: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/28894816/evaluation-of-peripheral-nerve-regeneration-through-biomaterial-conduits-via-micro-ct-imaging
#6
Sarah K Pixley, Tracy M Hopkins, Kevin J Little, David B Hom
OBJECTIVE: Hollow nerve conduits made of natural or synthetic biomaterials are used clinically to aid regeneration of peripheral nerves damaged by trauma or disease. To support healing, conduit lumen patency must be maintained until recovery occurs. New methods to study conduit structural integrity would provide an important means to optimize conduits in preclinical studies. We explored a novel combined technique to examine structural integrity of two types of nerve conduits after in vivo healing...
December 2016: Laryngoscope Investigative Otolaryngology
https://www.readbyqxmd.com/read/28894051/standardization-of-the-collection-of-exhaled-breath-condensate-and-exhaled-breath-aerosol-using-a-feedback-regulated-sampling-device
#7
Brett R Winters, Joachim D Pleil, Michelle M Angrish, Matthew A Stiegel, Terence H Risby, Michael C Madden
Exhaled breath condensate (EBC) and associated exhaled breath aerosols (EBA) are valuable non-invasive biological media used for the quantification of biomarkers. EBC contains exhaled water vapor, soluble gas-phase (polar) organic compounds, ionic species, plus other species including semi- and non-volatile organic compounds, proteins, cell fragments, DNA, dissolved inorganic compounds, ions, and micro-biota (bacteria and viruses) dissolved in the co-collected EBA. EBC is collected from subjects who breathe "normally" through a chilled tube assembly for approximately 10 minutes and is then harvested into small vials for analysis...
September 12, 2017: Journal of Breath Research
https://www.readbyqxmd.com/read/28891311/does-previous-open-renal-stone-surgery-affect-the-outcome-of-swl-treatment-in-adults-with-renal-stones
#8
Mehmet Hamza Gultekin, Fethi Ahmet Turegun, Burak Ozkan, Beril Tulu, Gamze Gul Gulec, Nejat Tansu, Cetin Demirdag, Pınar Kendigelen, Ahmet Erozenci, Bulent Onal
PURPOSE: To evaluate the effects of previous ipsilateral open renal stone surgery (ORSS) on outcomes of extracorporeal shockwave lithotripsy (SWL) in adults with renal stones. MATERIAL AND METHODS: A total of 2097 renal units (RUs) with renal stones underwent SWL treatment at our institution between March 1997 and February 2013. 1839 (87.7%) of these had no history of ORSS and were categorized as group 1 and 258 (12.3 %) patients having previous history of ipsilateral ORSS were categorized as group 2...
September 11, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28889209/micro-bead-injection-spectroscopy-for-label-free-automated-determination-of-immunoglobulin-g-in-human-serum
#9
Inês I Ramos, Luís M Magalhães, Luisa Barreiros, Salette Reis, José L F C Lima, Marcela A Segundo
Immunoglobulin G (IgG) represents the major fraction of antibodies in healthy adult human serum, and deviations from physiological levels are a generic marker of disease corresponding to different pathologies. Therefore, screening methods for IgG evaluation are a valuable aid to diagnostics. The present work proposes a rapid, automatic, and miniaturized method based on UV-vis micro-bead injection spectroscopy (μ-BIS) for the real-time determination of human serum IgG with label-free detection. Relying on attachment of IgG in rec-protein G immobilized in Sepharose 4B, a bioaffinity column is automatically assembled, where IgG is selectively retained and determined by on-column optical density measurement...
September 9, 2017: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/28888881/prevalence-and-genetic-profiling-of-tetracycline-resistance-tet-r-genes-and-transposable-element-tn916-in-environmental-enterococcus-species
#10
Sindhu Zahid, Hassan Bin-Asif, Khwaja Ali Hasan, Marium Rehman, Syed Abid Ali
Resistance against antimicrobial agents in enterococci is a global concern that not only challenges infection therapy but also make them reservoir of antibiotic resistance in human and animal alike. This study was conducted to establish tetracycline resistance profiles, prevalence of tet genes and transposable element (Tn916) in enterococcal soil and clinical isolates. Enterococci (n = 1210) from different environmental niche were collected and subjected to molecular identification. In total, 361 isolates showed tetracycline resistance at the breakpoint of 32 μg ml(-1)...
September 6, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28888550/issr-marker-assisted-genetic-diversity-analysis-of-dioscorea-hispida-and-selection-of-the-best-variety-for-sustainable-production
#11
Nur Fatihah Hasan Nudin, Abdul Manaf Ali, Norhayati Ngah, Nor Zuhailah Mazlan, Nashriyah Mat, Mohd Noor Abd Ghani, Nadiawati Alias, Abd Jamil Zakaria, Md Sarwar Jahan
Plant breeding is a way of selection of a particular individual for the production of the progeny by separating or combining desired characteristics. The objective of this study was to justify different characteristics of Dioscorea hispida (Ubi gadong) varieties using molecular techniques to select the best variety for sustainable production at the farmer's level. A total of 160 germplasms of Ubi gadong were collected from different locations at the Terengganu and Kelantan states of Malaysia. Forty eight (48) out of 160 germplasms were selected as "primary" selection based on yield and other qualitative characters...
September 6, 2017: Comptes Rendus Biologies
https://www.readbyqxmd.com/read/28884743/three-dimensional-analysis-of-the-physiological-foramen-geometry-of-maxillary-and-mandibular-molars-by-means-of-micro-ct
#12
Thomas Gerhard Wolf, Frank Paqué, Michael Sven Patyna, Brita Willershausen, Benjamín Briseño-Marroquín
The aim of this study was to investigate the physiological foramen diameter, shape and distance between physiological and anatomical apex of maxillary and mandibular first and second molars. Accurate knowledge of the physiological foramina morphology; thus, inherent mechanical shaping technical hindrances, is decisive when taking the corresponding root canal final preparation decision. The morphological dimensions of a total of 1727 physiological foramina were investigated by means of micro-computed tomography...
September 8, 2017: International Journal of Oral Science
https://www.readbyqxmd.com/read/28884476/probiotics-for-preventing-urinary-tract-infection-in-people-with-neuropathic-bladder
#13
REVIEW
Swee-Ling Toh, Claire L Boswell-Ruys, Bon San B Lee, Judy M Simpson, Kate R Clezy
BACKGROUND: Neuropathic or neurogenic bladder describes a process of dysfunctional voiding as the result of injury in the brain, spinal cord or nerves innervating the bladder. People with neuropathic bladder, such as from spinal cord injury (SCI), are at significant risk of morbidity from urinary tract infections (UTI). Effective methods to prevent UTI in people with SCI have been sought for many years. Probiotics (micro-organisms that exert beneficial health effects in the host) have been recommended for bacterial interference of the urological tract to reduce colonisation by uropathogen and to manage the dual problems of infection and antibiotic resistance...
September 8, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28881118/the-effect-of-uncinate-process-resection-on-subsidence-following-anterior-cervical-discectomy-and-fusion
#14
Su Hun Lee, Jun Seok Lee, Soon Ki Sung, Dong Wuk Son, Sang Weon Lee, Geun Sung Song
OBJECTIVE: Subsidence is a frequent complication of anterior cervical discectomy and fusion. Postoperative segmental micro-motion, thought to be a causative factor of subsidence, has been speculated to increase with uncinate process resection area (UPR). To evaluate the effect of UPR on micro-motion, we designed a method to measure UPR area based on pre- and postoperative computed tomography images and analyzed the relationship between UPR and subsidence as a proxy of micro-motion. METHODS: We retrospectively collected clinical and radiological data from January 2011 to June 2016...
September 2017: Journal of Korean Neurosurgical Society
https://www.readbyqxmd.com/read/28873212/simulation-analysis-of-rectifying-microfluidic-mixing-with-field-effect-tunable-electrothermal-induced-flow
#15
Weiyu Liu, Yukun Ren, Ye Tao, Bobin Yao, You Li
We report herein field-effect control on in-phase electrothermal streaming from a theoretical point of view, a phenomenon termed "AC electrothermal-flow field effect transistor" (ACET-FFET), in the context of a new technology for handing analytes in microfluidics. Field-effect control through a gate terminal endows ACET-FFET the ability to generate arbitrary symmetry breaking in the transverse vortex flow pattern, which makes it attractive for mixing microfluidic samples. A computational model is developed to study the feasibility of this new microfluidic device design for micromixing...
September 5, 2017: Electrophoresis
https://www.readbyqxmd.com/read/28870542/detailed-qualitative-analysis-of-honeybush-tea-cyclopia-spp-volatiles-by-comprehensive-two-dimensional-gas-chromatography-coupled-to-time-of-flight-mass-spectrometry-and-relation-with-sensory-data
#16
Gaalebalwe Ntlhokwe, Magdalena Muller, Elizabeth Joubert, Andreas G J Tredoux, André de Villiers
The volatile composition of honeybush (Cyclopia) species was studied by comprehensive two-dimensional gas chromatography coupled to time-of-flight mass spectrometry (GC×GC-TOF-MS). Headspace-solid phase micro-extraction (HS-SPME) was used to extract the volatile compounds from tea infusions prepared from the three species C. genistoides, C. maculata and C. subternata. A total of 287 compounds were identified, 101 of which were confirmed using reference standards, while the remainder were tentatively identified using mass spectral and retention index (RI) data...
August 24, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/28869620/the-influence-of-the-cumulated-deformation-energy-in-the-measurement-by-the-dsi-method-on-the-selected-mechanical-properties-of-bone-tissues
#17
Anna M Makuch, Konstanty R Skalski, Marek Pawlikowski
PURPOSE: The goal of the study was to determine the influence of DSI test conditions, i.e., loading/unloading rates, hold time, and the value of the maximum loading force on selected mechanical properties of trabecular bone tissue. METHODS: The test samples were resected from a femoral head of a patient qualified for a hip replacement surgery. During the DSI tests hardness (HV, HM, HIT) and elastic modulus (EIT) of trabecular bone tissue were measured using the Micro Hardness Tester (MHT, CSEM)...
2017: Acta of Bioengineering and Biomechanics
https://www.readbyqxmd.com/read/28867450/modeling-of-the-burst-release-from-plga-micro-and-nanoparticles-as-function-of-physicochemical-parameters-and-formulation-characteristics
#18
Cristiana Rodrigues de Azevedo, Moritz von Stosch, Mariana S Costa, A M Ramos, M Margarida Cardoso, Fabienne Danhier, Véronique Préat, Rui Oliveira
A substantial drug release from poly(lactic-co-glycolic) acid (PLGA) micro- and nanoparticles can occur in the first hours of immersion, which is referred to as burst release. A strong burst release (when not intentional) is to be avoided as it decreases the efficacy of the treatment and could be dangerous to the host. In this work we analyze the total amount of drug released during burst and respective kinetics in relation to formulations characteristics, experimental conditions and drug molecular properties in 154 drug release experiments with 41 different drugs by partial least squares (PLS) and decision tree regression...
September 1, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28865314/safety-analysis-of-urban-arterials-at-the-meso-level
#19
Jia Li, Xuesong Wang
Urban arterials form the main structure of street networks. They typically have multiple lanes, high traffic volume, and high crash frequency. Classical crash prediction models investigate the relationship between arterial characteristics and traffic safety by treating road segments and intersections as isolated units. This micro-level analysis does not work when examining urban arterial crashes because signal spacing is typically short for urban arterials, and there are interactions between intersections and road segments that classical models do not accommodate...
August 30, 2017: Accident; Analysis and Prevention
https://www.readbyqxmd.com/read/28862548/reoperation-for-growth-hormone-secreting-pituitary-adenomas-report-on-an-endonasal-endoscopic-series-with-a-systematic-review-and-meta-analysis-of-the-literature
#20
João Paulo Almeida, Armando S Ruiz-Treviño, Buqing Liang, Sacit B Omay, Sathwik R Shetty, Yu-Ning Chen, Vijay K Anand, Kartikey Grover, Paul Christos, Theodore H Schwartz
OBJECTIVE Surgery is generally the first-line therapy for acromegaly. For patients with residual or recurrent tumors, several treatment options exist, including repeat surgery, medical therapy, and radiation. Reoperation for recurrent acromegaly has been associated with poor results, with hormonal control usually achieved in fewer than 50% of cases. Extended endonasal endoscopic approaches (EEAs) may potentially improve the results of reoperation for acromegaly by providing increased visibility and maneuverability in parasellar areas...
September 1, 2017: Journal of Neurosurgery
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