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https://www.readbyqxmd.com/read/29784718/opinion-and-special-articles-stress-when-performing-the-first-lumbar-puncture-may-compromise-patient-safety
#1
Mikael Johannes Vuokko Henriksen, Troels Wienecke, Jesper Kristiansen, Yoon Soo Park, Charlotte Ringsted, Lars Konge
OBJECTIVE: To quantify physician stress levels when performing lumbar puncture (LP) and explore operator stress effect on patient outcomes. METHODS: This was a cross-sectional, multicenter study. Novices, intermediates, and experts in performing LP were recruited from 4 departments of neurology and emergency medicine. Stress was measured before and during performance of the LP using cognitive appraisal (CA), State-Trait Anxiety Inventory-Short (STAI-S) questionnaire, and the heart rate variability measure low frequency/high frequency index (LF/HF ratio)...
May 22, 2018: Neurology
https://www.readbyqxmd.com/read/29781534/lncrna-meg3-repressed-malignant-melanoma-progression-via-inactivating-wnt-signaling-pathway
#2
Peng Li, Ying Gao, Jun Li, Yu Zhou, Jing Yuan, Huiwen Guan, Peng Yao
Accumulating evidence has indicated that MEG3 can serve as a tumor suppressive lncRNA in various tumors. It is aberrantly expressed in multiple cancers. However, the biological roles of MEG3 in melanoma are poorly understood. Therefore, in our study, we concentrated on the biological mechanism of MEG3 in melanoma progression. First, we observed that MEG3 was obviously decreased in melanoma cells including A375, SK-MEL-1, B16, and A2058 cells compared to human epidermal melanocytes HEMa-LP. MEG3 was restored by transfecting LV-MEG3 in to A375 and A2058 cells...
May 21, 2018: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29781424/review-analysis-and-impact-of-co-circulating-h5n1-and-h9n2-avian-influenza-viruses-in-bangladesh
#3
Rokshana Parvin, Jahan Ara Begum, Mohammed Nooruzzaman, Emdadul Haque Chowdhury, Mohammad Rafiqul Islam, Thomas W Vahlenkamp
Almost the full range of 16 haemagglutinin (HA) and nine neuraminidase subtypes of avian influenza viruses (AIVs) has been detected either in waterfowl, land-based poultry or in the environment in Bangladesh. AIV infections in Bangladesh affected a wide range of host species of terrestrial poultry. The highly pathogenic avian influenza (AI) H5N1 and low pathogenic AI H9N2 were found to co-circulate and be well entrenched in the poultry population, which has caused serious damage to the poultry industry since 2007...
May 21, 2018: Epidemiology and Infection
https://www.readbyqxmd.com/read/29776925/unravelling-the-reduction-pathway-as-alternative-metabolic-route-to-hydroxycinnamate-decarboxylation-in-lactobacillus-plantarum
#4
Laura Santamaría, Inés Reverón, Félix López de Felipe, Blanca de Las Rivas, Rosario Muñoz
Lactobacillus plantarum is the lactic acid bacterial species most frequently found in plant-food fermentations where hydroxycinnamic acids are abundant. L. plantarum efficiently decarboxylates these compounds, and also reduces them, yielding substituted phenylpropionic acids. Although the reduction step is known to be induced by a hydroxycinnamic acid, the enzymatic machinery responsible for this reduction pathway has not been yet identified and characterized. A previous study on the transcriptomic response of L...
May 18, 2018: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/29774596/epidemiological-analysis-of-maternal-lipid-levels-during-the-second-trimester-in-pregnancy-and-the-risk-of-adverse-pregnancy-outcome-adjusted-by-pregnancy-bmi
#5
Chao-Yan Yue, Chun-Mei Ying
BACKGROUND: Pregnancy is accompanied by profound changes in lipid metabolism. We aimed to assess whether effects of second trimester body mass index and maternal lipid concentrations are associated with an increased risk of adverse pregnancy outcomes. METHODS: We investigated the serum levels of maternal lipids during the second trimester in pregnancy, and analyzed associations between the lipid levels and the risk of adverse pregnancy outcome. Seven hundred and seventy-four pregnant women were enrolled in this study between February 2016 and June 2016...
May 17, 2018: Journal of Clinical Laboratory Analysis
https://www.readbyqxmd.com/read/29774203/small-rho-gtpases-and-the-effector-vipa-mediate-the-invasion-of-epithelial-cells-by-filamentous-legionella-pneumophila
#6
Akriti Prashar, María Eugenia Ortiz, Stefanie Lucarelli, Elizabeth Barker, Zohreh Tabatabeiyazdi, Feras Shamoun, Deepa Raju, Costin Antonescu, Cyril Guyard, Mauricio R Terebiznik
Legionella pneumophila (Lp) exhibits different morphologies with varying degrees of virulence. Despite their detection in environmental sources of outbreaks and in respiratory tract secretions and lung autopsies from patients, the filamentous morphotype of Lp remains poorly studied. We previously demonstrated that filamentous Lp invades lung epithelial cells (LECs) and replicates intracellularly in a Legionella containing vacuole. Filamentous Lp activates β1integrin and E-cadherin receptors at the surface of LECs leading to the formation of actin-rich cell membrane structures we termed hooks and membrane wraps...
2018: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/29773088/lipoprotein-a-as-a-marker-for-predicting-the-presence-and-severity-of-coronary-artery-disease-in-untreated-chinese-patients-undergoing-coronary-angiography
#7
Di Sun, Xi Zhao, Sha Li, Yan Zhang, Na Qiong Wu, Cheng Gang Zhu, Yuan Lin Guo, Ying Gao, Ping Qing, Geng Liu, Qian Dong, Jian Jun Li
OBJECTIVE: Low-density lipoprotein cholesterol (LDL-C) has been well known as the risk factor of coronary artery disease (CAD). However, the role of lipoprotein (a) [Lp(a)] in the development of CAD is of great interest but still controversial. Thus, we aim to explore the effect of Lp(a) on predicting the presence and severity of CAD in Chinese untreated patients, especially in combination with LDL-C. METHODS: We consecutively recruited 1,980 non-treated patients undergoing coronary angiography, among which 1,162 patients were diagnosed with CAD...
April 2018: Biomedical and Environmental Sciences: BES
https://www.readbyqxmd.com/read/29769559/elevated-plasma-lipoprotein-a-levels-were-associated-with-increased-risk-of-cardiovascular-events-in-chinese-patients-with-stable-coronary-artery-disease
#8
Wen Dai, Junke Long, Ying Cheng, Yaqin Chen, Shuiping Zhao
Recent studies have suggested that lipoprotein(a) [Lp(a)] is associated with cardiovascular disease (CVD). However, the contribution of Lp(a) to residual risk of CVD has not been determined in Chinese populations. We conducted a prospective study to evaluate the association between Lp(a) and the risk of major adverse cardiovascular events (MACEs) in patients with stable coronary artery disease (CAD) who received optimal medication treatment (OMT). The study enrolled 1602 patients with stable CAD from 5 hospitals in China...
May 16, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29769347/avian-influenza-viruses-in-wild-birds-virus-evolution-in-a-multi-host-ecosystem
#9
Divya Venkatesh, Marjolein J Poen, Theo M Bestebroer, Rachel D Scheuer, Oanh Vuong, Mzia Chkhaidze, Anna Machablishvili, Jimsher Mamuchadze, Levan Ninua, Nadia B Fedorova, Rebecca A Halpin, Xudong Lin, Amy Ransier, Timothy B Stockwell, David E Wentworth, Divya Kriti, Jayeeta Dutta, Harm van Bakel, Anita Puranik, Marek J Slomka, Steve Essen, Ian H Brown, Ron A M Fouchier, Nicola S Lewis
Wild ducks and gulls are the major reservoirs for avian influenza A viruses (AIVs). The mechanisms that drive AIV evolution are complex at sites where various duck and gull species from multiple flyways breed, winter or stage. The Republic of Georgia is located at the intersection of three migratory flyways: Central Asian Flyway, East Asian/East African Flyway and Black Sea/Mediterranean Flyway. For six consecutive years (2010-2016), we collected AIV samples from various duck and gull species that breed, migrate and overwinter in Georgia...
May 16, 2018: Journal of Virology
https://www.readbyqxmd.com/read/29766932/prognostic-value-of-cerebrospinal-fluid-lactate-in-meningitis-in-postoperative-neurosurgical-patients
#10
A S Sumanth Kumar, Barada Prasad Sahu, Ashish Kumar
Objective: To evaluate the prognostic usefulness of cerebrospinal fluid (CSF) lactate in postoperative bacterial meningitis (POBM) and to establish the optimal CSF lactate cut-off values in our population to identify POBM in neurosurgical patients. Patients and Methods: A prospective study of postoperative neurosurgical patients with presumed and established bacterial meningitis in the Department of Neurosurgery, NIMS, Hyderabad, India, from September 2012 to December 2014...
May 2018: Neurology India
https://www.readbyqxmd.com/read/29766370/continuous-laminaribiose-production-using-an-immobilized-bienzymatic-system-in-a-packed-bed-reactor
#11
Akram Abi, Anqi Wang, Hans-Joachim Jördening
The first continuous production system of laminaribiose from sucrose and glucose in a bienzymatic reaction is reported in this study. Immobilized laminaribiose phosphorylase and sucrose phosphorylase were used in a packed bed reactor system comprising of a 3-cm glass column at 35 °C with a steady feeding flow rate of 0.1 ml/min. Factors affecting product formation including enzyme ratio, peal concept (both enzymes in one pearl or in separate pearls), and pearl size were studied. An enzyme ratio of 2:1 of laminaribiose phosphorylase (LP) to sucrose phosphorylase (SP) when encapsulated separately in bigger size peals resulted in higher concentration of product...
May 16, 2018: Applied Biochemistry and Biotechnology
https://www.readbyqxmd.com/read/29766044/filter-based-phase-shifts-distort-neuronal-timing-information
#12
Dorin Yael, Jacob J Vecht, Izhar Bar-Gad
Filters are widely used for the modulation, typically attenuation, of amplitudes of different frequencies within neurophysiological signals. Filters, however, also induce changes in the phases of different frequencies whose amplitude is unmodulated. These phase shifts cause time lags in the filtered signals, leading to a disruption of the timing information between different frequencies within the same signal and between different signals. The emerging time lags can be either constant in the case of linear phase (LP) filters or vary as a function of the frequency in the more common case of non-LP (NLP) filters...
March 2018: ENeuro
https://www.readbyqxmd.com/read/29765816/bioconversion-of-lignite-humic-acid-by-white-rot-fungi-and-characterization-of-products
#13
Lei Xiao, Yunyun Li, Yuansong Liao, Huirong Ma, Jianjun Wu, Yixin Zhang, Jinghua Yao
Lignite humic acids (LHAs) were sequentially separated from lignite with aqueous NaOH and HCl and biotreated by an isolated fungus WF8. The liquid product (LP), residues (RS) and LHAs were analyzed using a Fourier transform infrared spectrometer (FTIR) and a proton nuclear magnetic resonance (1 H NMR). Three main enzymes in WF8 (i.e., lignin peroxidase, manganese peroxidase and laccase) were also measured and analyzed with and without LHAs. The results show that LHAs can induce the ligninolytic enzymes. The oxidation and hydrogenation reactions proceeded to some extent, aromaticity in LHAs and carboxyl in LP decreased, and LHAs were converted into simpler LP via biochemical reactions by WF8...
May 2018: 3 Biotech
https://www.readbyqxmd.com/read/29765452/effects-and-potential-mechanism-of-atorvastatin-treatment-on-lp-pla2-in-rats-with-dyslipidemia
#14
Dongdan Zheng, Anping Cai, Rulin Xu, Zhuocheng Mai, Yingling Zhou, Fanfang Zeng, Liwen Li, Weiyi Mai
Introduction: The effects of statins on lipoprotein-associated phospholipase A2 (Lp-PLA2) are controversial, and the present study aimed to investigate whether atorvastatin could reduce Lp-PLA2 in rats with dyslipidemia. Material and methods: A high-fat and high-cholesterol diet was prescribed to produce a dyslipidemia model. Thereafter, low-dose atorvastatin (5 mg/kg/day), high-dose atorvastatin (20 mg/kg/day) or saline (without-treatment group) was prescribed for 14 days...
April 2018: Archives of Medical Science: AMS
https://www.readbyqxmd.com/read/29764613/the-joint-use-of-resilience-engineering-and-lean-production-for-work-system-design-a-study-in-healthcare
#15
Caroline Brum Rosso, Tarcisio Abreu Saurin
Although lean production (LP) has been increasingly adopted in healthcare systems, its benefits often fall short of expectations. This might be partially due to the failure of lean to account for the complexity of healthcare. This paper discusses the joint use of principles of LP and resilience engineering (RE), which is an approach for system design inspired by complexity science. Thus, a framework for supporting the design of socio-technical systems, which combines insights from LP and RE, was developed and tested in a system involving a patient flow from an emergency department to an intensive care unit...
September 2018: Applied Ergonomics
https://www.readbyqxmd.com/read/29764431/cyclooxygenase-2-immunoexpression-in-intestinal-epithelium-and-lamina-propria-of-cats-with-inflammatory-bowel-disease-and-low-grade-alimentary-lymphoma
#16
Jorge Castro-López, Antonio Ramis, Marta Planellas, Mariana Teles, Josep Pastor
BACKGROUND: Cyclooxygenase 2 (COX-2) is an inducible isoform by cellular activation, proinflammatory cytokines and growth factors. The aims of the current study were to evaluate COX-2 immunoexpression in epithelial and lamina propria (LP) of cats with inflammatory bowel disease (IBD) and low grade alimentary lymphoma (LGAL), as well as to correlate them with clinical signs and histopathological scoring. Cats diagnosed with IBD and LGAL (2007-2013) were included in the current study. Feline chronic enteropathy activity index (FCEAI) was calculated for all cases...
May 15, 2018: BMC Veterinary Research
https://www.readbyqxmd.com/read/29764384/caesarean-section-audit-to-improve-quality-of-care-in-a-rural-referral-hospital-in-tanzania
#17
Luuk Dekker, Tessa Houtzager, Omary Kilume, John Horogo, Jos van Roosmalen, Angelo Sadock Nyamtema
BACKGROUND: Caesarean section (CS) is often a life-saving procedure, but can also lead to serious complications, even more so in low-resource settings. Therefore unnecessary CS should be avoided and optimal circumstances for vaginal delivery should be created. In this study, we aim to audit indications for Caesarean sections and improve decision-making and obstetric management. METHODS: Audit of all cases of CS performed from January to August 2013 was performed in a rural referral hospital in Tanzania...
May 15, 2018: BMC Pregnancy and Childbirth
https://www.readbyqxmd.com/read/29762580/high-power-continuous-wave-tunable-mid-ir-higher-order-vortex-beam-optical-parametric-oscillator
#18
A Aadhi, Varun Sharma, G K Samanta
We report on a novel experimental scheme to generate continuous-wave (cw), high-power, and higher-order optical vortices tunable across a mid-IR wavelength range. Using a cw, two-crystal, singly resonant optical parametric oscillator (T-SRO) and pumping one of the crystals with a Gaussian beam and the other crystal with optical vortices of orders lp =1-6, we have directly transferred the vortices at near-IR to the mid-IR wavelength range. The idler vortices of orders li =1-6 are tunable across 2276-3576 nm with a maximum output power of 6...
May 15, 2018: Optics Letters
https://www.readbyqxmd.com/read/29759829/acute-and-3-month-performance-of-a-communicating-leadless-antitachycardia-pacemaker-and-subcutaneous-implantable-defibrillator
#19
Fleur V Y Tjong, Tom F Brouwer, Brendan Koop, Brian Soltis, Allan Shuros, Brian Schmidt, Bryan Swackhamer, Anne-Floor E B Quast, Arthur A M Wilde, Martin C Burke, Reinoud E Knops
OBJECTIVES: The primary objective was to assess the acute and 3-month performance of the modular antitachycardia pacing (ATP)-enabled leadless pacemaker (LP) and subcutaneous implantable cardioverter-defibrillator (S-ICD) system, particularly device-device communication and ATP delivery. BACKGROUND: Transvenous pacemakers and implantable cardioverter-defibrillators (ICDs) have considerable rates of lead complications. We examined the next step in multicomponent leadless cardiac rhythm management: feasibility of pacing (including ATP) by a LP, commanded by an implanted S-ICD through wireless, intrabody, device-device communication...
December 26, 2017: JACC. Clinical Electrophysiology
https://www.readbyqxmd.com/read/29758938/influence-of-lewy-pathology-on-alzheimer-s-disease-phenotype-a-retrospective-clinico-pathological-study
#20
Jennifer Roudil, Vincent Deramecourt, Boris Dufournet, Bruno Dubois, Mathieu Ceccaldi, Charles Duyckaerts, Florence Pasquier, Thibaud Lebouvier
BACKGROUND: Studies have shown the frequent coexistence of Lewy pathology (LP) in AD. OBJECTIVE: The aim of this study was to determine the influence of LP on the clinical and cognitive phenotype in a cohort of patients with a neuropathological diagnosis of AD. METHODS: We reviewed neuropathologically proven AD cases, reaching Braak stages V and VI in the brain banks of Lille and Paris between 1993 and 2016, and classified them according to LP extension (amygdala, brainstem, limbic, or neocortical)...
May 11, 2018: Journal of Alzheimer's Disease: JAD
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