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https://www.readbyqxmd.com/read/28551887/bacteriological-safety-assessment-hygienic-habits-and-cross-contamination-risks-in-a-nigerian-urban-sample-of-household-kitchen-environment
#1
Bernard O Ejechi, Ono P Ochei
Urban household kitchen environment was assessed for safety by determining their levels of indicator bacteria, hygienic habits and risk of cross-contamination. Household kitchens (60) were selected in Warri Town, Nigeria, by the multi-stage sampling technique. Contact surfaces, water and indoor kitchen air were analysed for aerobic plate counts, total and faecal coliforms using Nutrient and McConkey media by swab/rinse method, membrane filtration and sedimentation methods, respectively. Hygienic habits and risk of cross-contamination were assessed with structured questionnaire which included socio-demographic variables...
June 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/28551859/cognitive-workload-reduction-in-hospital-information-systems-decision-support-for-order-set-optimization
#2
Daniel Gartner, Yiye Zhang, Rema Padman
Order sets are a critical component in hospital information systems that are expected to substantially reduce physicians' physical and cognitive workload and improve patient safety. Order sets represent time interval-clustered order items, such as medications prescribed at hospital admission, that are administered to patients during their hospital stay. In this paper, we develop a mathematical programming model and an exact and a heuristic solution procedure with the objective of minimizing physicians' cognitive workload associated with prescribing order sets...
May 27, 2017: Health Care Management Science
https://www.readbyqxmd.com/read/28551842/psychometric-testing-of-the-mandarin-version-of-the-34-item-short-form-supportive-care-needs-survey-in-patients-with-cancer-in-mainland-china
#3
Yuan Han, Ying Zhou, Jing Wang, Qian Zhao, Huiying Qin, Yuying Fan, Yalan Song, Allison Boyes, Shuzhong Cui
PURPOSE: Although the Supportive Care Needs Survey is one of the most comprehensive and robust cancer-specific needs assessment instruments, no version exists specifically for cancer patients in mainland China. This study tested the psychometric properties of the Mandarin version of the 34-item Short-Form Supportive Care Needs Survey (SCNS-SF34-C (Mandarin)) in mainland Chinese cancer patients. METHODS: From December 2015 to May 2016, patients were recruited from two cancer centers in Guangzhou, China, to complete the SCNS-SF34-C (Mandarin)...
May 27, 2017: Supportive Care in Cancer: Official Journal of the Multinational Association of Supportive Care in Cancer
https://www.readbyqxmd.com/read/28551828/rate-and-mode-of-screw-misplacements-after-3d-fluoroscopy-navigation-assisted-insertion-and-3d-imaging-control-of-1547-pedicle-screws-in-spinal-levels-t10-s1-related-to-vertebrae-and-spinal-sections
#4
Horst Balling, Thomas R Blattert
PURPOSE: In the field of spinal surgery, 3D-fluoroscopy navigation-assisted pedicle screw (PS) insertion with intra-operative 3D-image control represents a modern application of contemporary navigation technology. In literature, sectional or vertebral accuracy limitations of this image-guidance approach are not profoundly specified. This observational study explicitly differentiates accuracy rates and misplacement mode between spinal sections and single vertebrae from T10 to S1 using a navigation-assisted approach...
May 27, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28551818/novel-three-dimensional-image-fusion-software-to-facilitate-guidance-of-complex-cardiac-catheterization-3d-image-fusion-for-interventions-in-chd
#5
Sebastian Goreczny, Pawel Dryzek, Gareth J Morgan, Maciej Lukaszewski, Jadwiga A Moll, Tomasz Moszura
We report initial experience with novel three-dimensional (3D) image fusion software for guidance of transcatheter interventions in congenital heart disease. Developments in fusion imaging have facilitated the integration of 3D roadmaps from computed tomography or magnetic resonance imaging datasets. The latest software allows live fusion of two-dimensional (2D) fluoroscopy with pre-registered 3D roadmaps. We reviewed all cardiac catheterizations guided with this software (Philips VesselNavigator). Pre-catheterization imaging and catheterization data were collected focusing on fusion of 3D roadmap, intervention guidance, contrast and radiation exposure...
May 27, 2017: Pediatric Cardiology
https://www.readbyqxmd.com/read/28551817/discovery-of-novel-inhibitors-for-leishmania-nucleoside-diphosphatase-kinase-ndk-based-on-its-structural-and-functional-characterization
#6
Arjun K Mishra, Nidhi Singh, Pragati Agnihotri, Shikha Mishra, Saurabh P Singh, Bala K Kolli, Kwang Poo Chang, Amogh A Sahasrabuddhe, M I Siddiqi, J Venkatesh Pratap
Nucleoside diphosphate kinases (NDKs) are ubiquitous enzymes that catalyze the transfer of the γ-phosphate moiety from an NTP donor to an NDP acceptor, crucial for maintaining the cellular level of nucleoside triphosphates (NTPs). The inability of trypanosomatids to synthesize purines de novo and their dependence on the salvage pathway makes NDK an attractive target to develop drugs for the diseases they cause. Here we report the discovery of novel inhibitors for Leishmania NDK based on the structural and functional characterization of purified recombinant NDK from Leishmania amazonensis...
May 27, 2017: Journal of Computer-aided Molecular Design
https://www.readbyqxmd.com/read/28551807/prohibitin-signaling-at-the-kidney-filtration-barrier
#7
Christina Ising, Paul T Brinkkoetter
The kidney filtration barrier consists of three well-defined anatomic layers comprising a fenestrated endothelium, the glomerular basement membrane (GBM) and glomerular epithelial cells, the podocytes. Podocytes are post-mitotic and terminally differentiated cells with primary and secondary processes. The latter are connected by a unique cell-cell contact, the slit diaphragm. Podocytes maintain the GBM and seal the kidney filtration barrier to prevent the onset of proteinuria. Loss of prohibitin-1/2 (PHB1/2) in podocytes results not only in a disturbed mitochondrial structure but also in an increased insulin/IGF-1 signaling leading to mTOR activation and a detrimental metabolic switch...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28551800/high-density-lipoprotein-regulation-of-mitochondrial-function
#8
C Roger White, Geeta Datta, Samantha Giordano
Lipoproteins play a key role in regulating plasma and tissue levels of cholesterol. Apolipoprotein B (apoB)-containing lipoproteins, including chylomicrons, very-low density lipoprotein (VLDL) and low-density lipoprotein (LDL), serve as carriers of triglycerides and cholesterol and deliver these metabolites to peripheral tissues. In contrast, high-density lipoprotein (HDL) mediates Reverse Cholesterol Transport (RCT), a process by which excess cholesterol is removed from the periphery and taken up by hepatocytes where it is metabolized and excreted...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28551797/peripheral-blood-mitochondrial-dna-and-myocardial-function
#9
Tatiana Kuznetsova, Judita Knez
Heart failure is a complex progressive clinical syndrome which is initiated by risk factors (e.g., hypertension, obesity, and diabetes), then proceeds to asymptomatic maladaptive left ventricular remodeling and dysfunction, and finally evolves into clinically overt, symptomatic heart failure, disability, and death. The progression of left ventricular dysfunction is associated with changes in cardiac energy metabolism. Mitochondria play a central role in a variety of cardiomyocytes functions, including oxidative energy production, storage of calcium ions, and programmed cell death...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28551796/nitrite-nitric-oxide-signaling-and-cardioprotection
#10
Matthias Totzeck, Ulrike B Hendgen-Cotta, Tienush Rassaf
Cardioprotective strategies to prevent damage to mitochondria in acute myocardial infarction are warranted to reduce lethal myocardial ischemia/reperfusion (I/R) injury. Mitochondrial antagonists in I/R are reactive oxygen species (ROS), deteriorated calcium signaling, permeabilization of the mitochondrial outer membrane (MOM) and deranged mitochondrial structural dynamism (fusion and fission). Nitric oxide (NO) related signaling can protect hearts from I/R. Albeit the underlying signaling is incompletely resolved, recent data point to a particular involvement of protective posttranslational modification of mitochondrial elements...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28551793/mitochondria-in-structural-and-functional-cardiac-remodeling
#11
Natalia Torrealba, Pablo Aranguiz, Camila Alonso, Beverly A Rothermel, Sergio Lavandero
The heart must function continuously as it is responsible for both supplying oxygen and nutrients throughout the entire body, as well as for the transport of waste products to excretory organs. When facing either a physiological or pathological increase in cardiac demand, the heart undergoes structural and functional remodeling as a means of adapting to increased workload. These adaptive responses can include changes in gene expression, protein composition, and structure of sub-cellular organelles involved in energy production and metabolism...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28551787/mechanistic-role-of-mptp-in-ischemia-reperfusion-injury
#12
Giampaolo Morciano, Massimo Bonora, Gianluca Campo, Giorgio Aquila, Paola Rizzo, Carlotta Giorgi, Mariusz R Wieckowski, Paolo Pinton
Acute myocardial infarction (MI) is a major cause of death and disability worldwide. The treatment of choice for reducing ischemic injury and limiting infarct size (IS) in patients with ST-segment elevation MI (STEMI) is timely and effective myocardial reperfusion via primary percutaneous coronary intervention (PCI). However, myocardial reperfusion itself may induce further cardiomyocyte death, a phenomenon known as reperfusion injury (RI). The opening of a large pore in the mitochondrial membrane, namely, the mitochondrial permeability transition pore (mPTP), is widely recognized as the final step of RI and is responsible for mitochondrial and cardiomyocyte death...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28551783/mitochondrial-mutations-in-cardiac-disorders
#13
Sung Ryul Lee, Jin Han
Mitochondria individually encapsulate their own genome, unlike other cellular organelles. Mitochondrial DNA (mtDNA) is a circular, double-stranded, 16,569-base paired DNA containing 37 genes: 13 proteins of the mitochondrial respiratory chain, two ribosomal RNAs (rRNAs; 12S and 16S), and 22 transfer RNAs (tRNAs). The mtDNA is more vulnerable to oxidative modifications compared to nuclear DNA because of its proximity to ROS-producing sites, limited presence of DNA damage repair systems, and continuous replication in the cell...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28551782/mitochondrial-bioenergetics-and-dysfunction-in-failing-heart
#14
Freya L Sheeran, Salvatore Pepe
Energy insufficiency has been recognized as a key feature of systolic heart failure. Although mitochondria have long been known to sustain myocardial work energy supply, the capacity to therapeutically target mitochondrial bioenergetics dysfunction is hampered by a complex interplay of multiple perturbations that progressively compound causing myocardial failure and collapse. Compared to non-failing human donor hearts, activity rates of complexes I and IV, nicotinamide nucleotide transhydrogenase (NADPH-transhydrogenase, Nnt) and the Krebs cycle enzymes isocitrate dehydrogenase, malate dehydrogenase and aconitase are markedly decreased in end-stage heart failure...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28551779/functional-implications-of-cardiac-mitochondria-clustering
#15
Felix T Kurz, Miguel A Aon, Brian O'Rourke, Antonis A Armoundas
The spatio-temporal organization of mitochondria in cardiac myocytes facilitates myocyte-wide, cluster-bound, mitochondrial inner membrane potential oscillatory depolarizations, commonly triggered by metabolic or oxidative stressors. Local intermitochondrial coupling can be mediated by reactive oxygen species (ROS) that activate inner membrane pores to initiate a ROS-induced-ROS-release process that produces synchronized limit cycle oscillations of mitochondrial clusters within the whole mitochondrial network...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28551767/does-rarity-mean-imparity-biological-characteristics-of-osteosarcoma-cells-originating-from-the-spine
#16
Zhenhua Zhou, Yan Li, Xu Yan, Xudong Wang, Cheng Yang, Haifeng Wei, Xinghai Yang, Jianru Xiao
PURPOSE: Osteosarcoma is one of the most common malignancies in bones and is often found in limbs. Until now, it is not clear why osteosarcoma is rare in the spine. On the other hand, previous biological characteristics study about osteosarcoma of spine was also rare because of its low incidence. To explore the biology of spinal osteosarcoma, a stable osteosarcoma cell line derived from spine is necessary. METHODS: A novel osteosarcoma cell line named NEO217 was established from spinal osteosarcoma tissues obtained from a Chinese male patient...
May 27, 2017: Journal of Cancer Research and Clinical Oncology
https://www.readbyqxmd.com/read/28551764/autofluorescence-spectroscopy-for-nerve-sparing-laser-surgery-of-the-head-and-neck-the-influence-of-laser-tissue-interaction
#17
Florian Stelzle, Maximilian Rohde, Max Riemann, Nicolai Oetter, Werner Adler, Katja Tangermann-Gerk, Michael Schmidt, Christian Knipfer
The use of remote optical feedback systems represents a promising approach for minimally invasive, nerve-sparing laser surgery. Autofluorescence properties can be exploited for a fast, robust identification of nervous tissue. With regard to the crucial step towards clinical application, the impact of laser ablation on optical properties in the vicinity of structures of the head and neck has not been investigated up to now. We acquired 24,298 autofluorescence spectra from 135 tissue samples (nine ex vivo tissue types from 15 bisected pig heads) both before and after ER:YAG laser ablation...
May 27, 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/28551752/behavioural-phenotypes-and-neural-circuit-dysfunctions-in-mouse-models-of-autism-spectrum-disorder
#18
Allain-Thibeault Ferhat, Sonja Halbedl, Michael J Schmeisser, Martien J Kas, Thomas Bourgeron, Elodie Ey
Autism spectrum disorder (ASD) is a neurodevelopmental condition primarily characterised by alterations in social interaction and communication combined with the presence of restricted interests and stereotyped behaviours. Mutations in several genes have been associated with ASD resulting in the generation of corresponding mouse models. Here, we focus on the behavioural (social and stereotyped behaviours), functional and structural traits of mice with mutations in genes encoding defined synaptic proteins including adhesion proteins, scaffolding proteins and subunits of channels and receptors...
2017: Advances in Anatomy, Embryology, and Cell Biology
https://www.readbyqxmd.com/read/28551738/role-of-biochar-on-composting-of-organic-wastes-and-remediation-of-contaminated-soils-a-review
#19
Shaohua Wu, Huijun He, Xayanto Inthapanya, Chunping Yang, Li Lu, Guangming Zeng, Zhenfeng Han
Biochar is produced by pyrolysis of biomass residues under limited oxygen conditions. In recent years, biochar as an amendment has received increasing attention on composting and soil remediation, due to its unique properties such as chemical recalcitrance, high porosity and sorption capacity, and large surface area. This paper provides an overview on the impact of biochar on the chemical characteristics (greenhouse gas emissions, nitrogen loss, decomposition and humification of organic matter) and microbial community structure during composting of organic wastes...
May 27, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28551711/why-are-most-phospholipidosis-inducers-also-herg-blockers
#20
Svetoslav Slavov, Iva Stoyanova-Slavova, Shuaizhang Li, Jinghua Zhao, Ruili Huang, Menghang Xia, Richard Beger
Recent reports have noted that a number of compounds that block the human Ether-à-go-go related gene (hERG) ion channel also induce phospholipidosis (PLD). To explore a hypothesis explaining why most PLD inducers are also hERG inhibitors, a modeling approach was undertaken with data sets comprised of 4096 compounds assayed for hERG inhibition and 5490 compounds assayed for PLD induction. To eliminate the chemical domain effect, a filtered data set of 567 compounds tested in quantitative high-throughput screening (qHTS) format for both hERG inhibition and PLD induction was constructed...
May 27, 2017: Archives of Toxicology
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