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https://www.readbyqxmd.com/read/29333490/inhibition-of-bacterial-adhesion-on-nanotextured-stainless-steel-316l-by-electrochemical-etching
#1
Yeongseon Jang, Won Tae Choi, Christopher T Johnson, Andrés J García, Preet M Singh, Victor Breedveld, Dennis W Hess, Julie A Champion
Bacterial adhesion to stainless steel 316L (SS316L), which is an alloy typically used in many medical devices and food processing equipment, can cause serious infections along with substantial healthcare costs. This work demonstrates that nanotextured SS316L surfaces produced by electrochemical etching effectively inhibit bacterial adhesion of both Gram-negative Escherichia coli and Gram-positive Staphylococcus aureus, but exhibit cytocompatibility and no toxicity toward mammalian cells in vitro. Additionally, the electrochemical surface modification on SS316L results in formation of superior passive layer at the surface, improving corrosion resistance...
January 8, 2018: ACS Biomaterials Science & Engineering
https://www.readbyqxmd.com/read/29333113/grating-oriented-line-wise-filtration-golf-for-dual-energy-x-ray-ct
#2
Yan Xi, Wenxiang Cong, Daniel Harrison, Ge Wang
In medical X-ray Computed Tomography (CT), the use of two distinct X-ray source spectra (energies) allows dose-reduction and material discrimination relative to that achieved with only one source spectrum. Existing dual-energy CT methods include source kVp-switching, double-layer detection, dual-source gantry, and two-pass scanning. Each method suffers either from strong spectral correlation or patient-motion artifacts. To simultaneously address these problems, we propose to improve CT data acquisition with the Grating Oriented Line-wise Filtration (GOLF) method, a novel X-ray filter that is placed between the source and patient...
December 2017: Sensing and Imaging
https://www.readbyqxmd.com/read/29331226/a-low-complexity-minimum-variance-beamformer-for-ultrasound-imaging-using-dominant-mode-rejection
#3
Babak Mohammadzadeh Asl, Ali Mohades Deylami
In recent years, high resolution adaptive minimum variance-based beamformers have been successfully applied to medical ultrasound imaging to improve its resolution and contrast, simultaneously. However, these improvements come at the cost of much more computational complexity in comparison to the non-adaptive delay-and-sum beamformer. The computational overhead mainly results from the L×L covariance matrix inversion needed for computation of the adaptive weights, the complexity of which is cubic with the subarray size, O(L3)...
January 4, 2018: Ultrasonics
https://www.readbyqxmd.com/read/29331010/implants-for-extracapsular-neck-of-femur-fracture-dynamic-hip-screw-versus-intramedullary-nailing
#4
Faisal Farooq Butt, Adnan Shabbair Hussain, Ahmed Mushtaq Khan, Maria Sultan
Neck of femur fractures are the most prevalent type of injury in elderly trauma patients. Both intra and extra capsular type of fractures are equally distributed in the given population. Traditionally, Extra capsular fractures are fixed with Dynamic Hip screw or Intra medullary nailing based on the type of fracture. NICE (National Institute of Clinical Excellence) recommends fixing 31-A1 and 31-A2 fractures with DHS (Dynamic Hip Screw) whereas AO recommends fixing 31-A1 with DHS and 31-A2.1 subtype with DHS and 31-A2...
October 2017: Journal of Ayub Medical College, Abbottabad: JAMC
https://www.readbyqxmd.com/read/29330927/defined-serum-free-medium-for-bioreactor-culture-of-an-immortalized-human-erythroblast-cell-line
#5
Esmond Lee, Zhong Ri Lim, Hong Yu-Chen, Bin Xia Yang, Alan Tin-Lun Lam, Allen Kuan-Liang Chen, Jaichandran Sivalingam, Shaul Reuveny, Yuin-Han Loh, Steve Kah-Weng Oh
Anticipated shortages in donated blood supply have prompted investigation of alternative approaches for in-vitro production of red blood cells (RBCs), such as expansion of conditional immortalization erythroid progenitors. However, there is a bioprocessing challenge wherein factors promoting maximal cell expansion and growth-limiting inhibitory factors are yet to be investigated. We used an erythroblast cell line (ImEry) derived from immortalizing CD71+CD235a+ erythroblast from adult peripheral blood for optimization of expansion culture conditions...
January 13, 2018: Biotechnology Journal
https://www.readbyqxmd.com/read/29329775/recent-advances-and-strategies-in-process-and-strain-engineering-for-the-production-of-butyric-acid-by-microbial-fermentation
#6
REVIEW
Hongzhen Luo, Rongling Yang, Yuping Zhao, Zhaoyu Wang, Zheng Liu, Mengyu Huang, Qingwei Zeng
Butyric acid is an important platform chemical, which is widely used in the fields of food, pharmaceutical, energy, etc. Microbial fermentation as an alternative approach for butyric acid production is attracting great attention as it is an environmentally friendly bioprocessing. However, traditional fermentative butyric acid production is still not economically competitive compared to chemical synthesis route, due to the low titer, low productivity, and high production cost. Therefore, reduction of butyric acid production cost by utilization of alternative inexpensive feedstock, and improvement of butyric acid production and productivity has become an important target...
January 3, 2018: Bioresource Technology
https://www.readbyqxmd.com/read/29329625/immune-development-and-performance-characteristics-of-romney-sheep-selected-for-either-resistance-or-resilience-to-gastrointestinal-nematodes
#7
A W Greer, J L McKenzie, R W McAnulty, J F Huntley, T N McNeilly
Immunological and performance characteristics were explored in Romney sheep from lines selected for either resistance or resilience to parasite infection. At a mean 78 days-of-age, twin lambs from a line selected for resistance (RT) and lambs from a line selected for resilience (RL) were infected with the intestinal nematode Trichostrongylus colubriformis for 100 days (I) while their twin remained as an uninfected control (C). Compared with RL, RT animals had lower levels of circulating CD4+ T-cells (P = 0...
January 30, 2018: Veterinary Parasitology
https://www.readbyqxmd.com/read/29329396/patient-level-benefits-associated-with-decentralization-of-antiretroviral-therapy-services-to-primary-health-facilities-in-malawi-and-uganda
#8
George Abongomera, Levison Chiwaula, Paul Revill, Travor Mabugu, Edward Tumwesige, Misheck Nkhata, Fabian Cataldo, J van Oosterhout, Robert Colebunders, Adrienne K Chan, Cissy Kityo, Charles Gilks, James Hakim, Janet Seeley, Diana M Gibb, Deborah Ford
Background: The Lablite project captured information on access to antiretroviral therapy (ART) at larger health facilities ('hubs') and lower-level health facilities ('spokes') in Phalombe district, Malawi and in Kalungu district, Uganda. Methods: We conducted a cross-sectional survey among patients who had transferred to a spoke after treatment initiation (Malawi, n=54; Uganda, n=33), patients who initiated treatment at a spoke (Malawi, n=50; Uganda, n=44) and patients receiving treatment at a hub (Malawi, n=44; Uganda, n=46)...
January 10, 2018: International Health
https://www.readbyqxmd.com/read/29329324/variability-and-cost-implications-of-three-generations-of-the-roche-lightcycler%C3%A2-480
#9
Maria Dullaert-de Boer, Onno W Akkerman, Marloes Vermeer, Dorine L J Hess, Huib A M Kerstjens, Richard M Anthony, Tjip S van der Werf, Dick van Soolingen, Adri G M van der Zanden
Real time PCR has become a dominant method for the highly sensitive detection of pathogens in clinical material. Real time PCR can generate a fluorescence signal by using fluorescence labelled probes, allowing us to detect and semi quantify the amount of amplified DNA. Here we test the variability of the detection system and cost implications of three different versions of the LightCycler® 480 (LC480), focusing on the intensity of fluorescence and Cq in monoplex and multiplex rtPCRs. For gastro-intestinal pathogens there was no correlation between the intensity of fluorescence and the Cq value in the different LC480 types...
2018: PloS One
https://www.readbyqxmd.com/read/29329005/costs-and-benefits-of-biogas-recovery-from-communal-anaerobic-digesters-treating-domestic-wastewater-evidence-from-peri-urban-zambia
#10
Jeannette Laramee, Sebastien Tilmans, Jennifer Davis
Communal anaerobic digesters (ADs) have been promoted as a waste-to-energy strategy that can provide sanitation and clean energy co-benefits. However, little empirical evidence is available regarding the performance of such systems in field conditions. This study assesses the wastewater treatment efficiency, energy production, greenhouse gas (GHG) emissions, and financial costs and benefits of communal ADs used for domestic wastewater treatment in Zambia. Primary data on the technical performance of 15 ADs were collected over a 6-month period and in-person interviews were conducted with heads of 120 households...
January 9, 2018: Journal of Environmental Management
https://www.readbyqxmd.com/read/29327644/evaluation-of-supervised-multimodal-prehabilitation-programme-in-cancer-patients-undergoing-colorectal-resection-a-randomized-control-trial
#11
Guillaume Bousquet-Dion, Rashami Awasthi, Sarah-Ève Loiselle, Enrico M Minnella, Ramanakumar V Agnihotram, Andreas Bergdahl, Francesco Carli, Celena Scheede-Bergdahl
BACKGROUND: Prehabilitation has been previously shown to be more effective in enhancing postoperative functional capacity than rehabilitation alone. The purpose of this study was to determine whether a weekly supervised exercise session could provide further benefit to our current prehabilition program, when comparing to standard post-surgical rehabilitation. METHODS: A parallel-arm single-blind randomized control trial was conducted in patients scheduled for non-metastatic colorectal cancer resection...
January 12, 2018: Acta Oncologica
https://www.readbyqxmd.com/read/29327543/-management-of-displaced-radial-neck-fractures-in-children-elastic-stable-intramedullary-nailing-vs-k-wire-fixation
#12
Quan-Zhou Wu, Shu-Ming Huang, Qi-Xun Cai, Xu-Feng Chu
OBJECTIVE: To compare the complications and clinical outcome of titanium elastic nail(TEN) versus K-wire fixation(KW) for the treatment of displaced radial neck fractures in children. METHODS: From January 2009 to December 2014, 56 children with displaced radial neck fractures were studied retrospectively according to the inclusion criteria. Based on the different methods of internal fixation, patients were divided into two groups: titanium elastic nail (TEN group) and K-wire fixation (KW group)...
January 25, 2017: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/29327434/a-fast-and-reliable-method-for-monitoring-of-prophage-activating-chemicals
#13
Juan Xu, Bärbel Kiesel, René Kallies, Feng-Lei Jiang, Yi Liu, Thomas Maskow
Bacteriophages, that is viruses that infect bacteria, either lyse bacteria directly or integrate their genome into the bacterial genome as so-called prophages, where they remain at a silent state. Both phages and bacteria are able to survive in this state. However, prophages can be reactivated with the introduction of chemicals, followed by the release of a high number of phage particles, which could infect other bacteria, thus harming ecosystems by a viral bloom. The basics for a fast, automatable analytical method for the detection of prophage-activating chemicals are developed and successfully tested here...
January 12, 2018: Microbial Biotechnology
https://www.readbyqxmd.com/read/29327411/reductive-alkaline-release-of-n-glycans-generates-a-variety-of-unexpected-useful-products
#14
Rudolf Figl, Friedrich Altmann
Release of O-glycans by reductive β-elimination has become routine in many glyco-analytical laboratories and concomitant release of N-glycans has repeatedly been observed. Revisiting this somewhat forgotten mode of N-glycan release revealed that all kinds of N-glycans including oligomannosidic and complex-type N-glycans from plants with 3-linked fucose and from mammals with or without 6-linked fucose and with sialic acid could be recovered. However, the mass spectra of the obtained products revealed very surprising facts...
January 12, 2018: Proteomics
https://www.readbyqxmd.com/read/29327397/translating-international-hiv-treatment-guidelines-into-local-priorities-in-indonesia
#15
Noor Tromp, Rozar Prawiranegara, Adiatma Siregar, Rudi Wisaksana, Lucas Pinxten, Juul Pinxten, Arry Lesmana Putra, Deni Sunjaya Lesmana, Maarten Jansen, Jan Hontelez, Scott Maurits, Febrina Maharani, Leon Bijlmakers, Rob Baltussen
OBJECTIVE: International guidelines recommend countries to expand Antiretroviral therapy (ART) to all HIV-infected individuals and establish local-level priorities in relation to other treatment, prevention and mitigation interventions through fair processes. However, no practical guidance is provided for such priority setting processes. Evidence-informed deliberative processes (EDPs) fill this gap and combine stakeholder deliberation to incorporate relevant social values with rational decision-making informed by evidence on these values...
January 12, 2018: Tropical Medicine & International Health: TM & IH
https://www.readbyqxmd.com/read/29327229/leopoldia-comosa-prevents-metabolic-disorders-in-rats-with-high-fat-diet-induced-obesity
#16
T Casacchia, F Scavello, C Rocca, M C Granieri, G Beretta, D Amelio, F Gelmini, A Spena, R Mazza, C C Toma, Tommaso Angelone, Giancarlo Statti, T Pasqua
PURPOSE: Obesity is the main feature of a complex illness known as metabolic syndrome. Anti-obesogenic therapies are often associated with side effects and represent a high cost in conventional pharmacological approaches. New strategies based on natural remedies are under continuous investigation. Leopoldia comosa (L.) Parl. (L. comosa) is a spontaneous plant with diuretic, anti-inflammatory and antioxidant properties. Recently, a hypoglycemic activity mediated by inhibition of carbohydrate digestion has been identified...
January 11, 2018: European Journal of Nutrition
https://www.readbyqxmd.com/read/29326094/a-shared-decision-making-tool-to-prevent-substance-abuse-protocol-for-a-randomized-controlled-trial
#17
Ju Long, Juntao Michael Yuan, Ron Kim Johnson
BACKGROUND: Substance use disorder (SUD) affects over 20 million adults and costs over $700 billion annually in the United States. It is one the greatest health care challenges we face. OBJECTIVE: This research project seeks to enhance the standard practice of Screening, Brief Intervention, and Referral to Treatment (SBIRT) through a mobile solution easily incorporated into primary care that will promote shared decision making and increase referral and adherence to specialty care through continued follow-up care...
January 11, 2018: JMIR Research Protocols
https://www.readbyqxmd.com/read/29325468/does-enhanced-support-for-offenders-effectively-reduce-custodial-violence-and-disruption-an-evaluation-of-the-enhanced-support-service-pilot
#18
Jake Camp, Kerry Joy, Mark Freestone
This study aimed to examine the effectiveness of The Enhanced Support Service (ESS) pilot in reducing custodial violence and disruption, and the associated costs, by observing the behavioural change of the 35 service users who participated in ESS intervention within its first 22 months of operation. Frequencies of recorded incidents of aggressive behaviours, self-harming behaviours, noncompliance, and positive behaviours were counted from routine administrative systems using a coding structure developed in previous studies...
January 1, 2018: International Journal of Offender Therapy and Comparative Criminology
https://www.readbyqxmd.com/read/29325003/reversible-colour-change-in-leaves-enhances-pollinator-attraction-and-reproductive-success-in-saururus-chinensis-saururaceae
#19
Bo Song, Jürg Stöcklin, W Scott Armbruster, Yongqian Gao, Deli Peng, Hang Sun
Background and Aims: Although there has been much experimental work on leaf colour change associated with selection generated by abiotic environmental factors and antagonists, the role of leaf colour change in pollinator attraction has been largely ignored. We tested whether whitening of the apical leaves subtending the inflorescences of Saururus chinensis during flowering enhances pollinator attraction, and whether re-greening of the white leaves after flowering increases carbon assimilation and promotes seed development...
January 9, 2018: Annals of Botany
https://www.readbyqxmd.com/read/29325000/alcohol-tobacco-and-health-care-costs-a-population-wide-cohort-study-n-606-947-patients-of-current-drinkers-based-on-medical-and-administrative-health-records-from-catalonia
#20
Laia Miquel, Jürgen Rehm, Kevin D Shield, Emili Vela, Montserrat Bustins, Lidia Segura, Joan Colom, Peter Anderson, Antoni Gual
Background: Most cost of illness studies are based on models where information on exposure is combined with risk information from meta-analyses, and the resulting attributable fractions are applied to the number of cases. Methods: This study presents data on alcohol and tobacco use for 2011 and 2012 obtained from a routine medical practice in Catalonia of 606 947 patients, 18 years of age and older, as compared with health care costs for 2013 (all costs from the public health care system: primary health care visits, hospital admissions, laboratory and medical tests, outpatient visits to specialists, emergency department visits and pharmacy expenses)...
January 8, 2018: European Journal of Public Health
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