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https://www.readbyqxmd.com/read/29454133/prevalence-and-risk-factors-for-neural-axis-anomalies-in-idiopathic-scoliosis-a-systematic-review
#1
REVIEW
Johan L Heemskerk, Moyo C Kruyt, Dino Colo, René M Castelein, Diederik H R Kempen
BACKGROUND: There is ongoing controversy about the routine use of magnetic resonance imaging (MRI) preoperatively in patients with presumed idiopathic scoliosis (IS). Routine MRI can help identify possible causes for the deformity and detect anomalies which could complicate deformity surgery. However, routine MRI increases health care costs significantly and may reveal mild variations from normal without clinical relevance, that can still lead to anxiety and influence decision making...
February 14, 2018: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/29453902/perioperative-outcome-and-complications-following-laparoscopic-versus-robotic-assisted-dismembered-pyeloplasty-a-systematic-review-and-meta-analysis
#2
REVIEW
Alexander Light, Sandeep Karthikeyan, Sachan Maruthan, Oussama ElHage, Hansjörg Danuser, Prokar Dasgupta
OBJECTIVE: To analyse the current difference between dismembered robotic-assisted pyeloplasty (RP) and laparoscopic pyeloplasty (LP) in the treatment of pelvi-ureteric junction obstruction (PUJO) patients as of June 26 2017, focusing on operative time, length of hospital stay, complication rate, and success rate. PATIENTS AND METHODS: We searched PubMed, Medline, and Embase databases, consulted experts, reviewed reference lists, used the related articles PubMed feature, and reviewed scientific meeting abstracts for eligible articles from 1993 to June 26 2017...
February 17, 2018: BJU International
https://www.readbyqxmd.com/read/29453716/occurrence-and-assessment-of-the-risk-of-ultraviolet-filters-and-light-stabilizers-in-victorian-estuaries
#3
Mayumi Allinson, Yutaka Kameda, Kumiko Kimura, Graeme Allinson
This reconnaissance study was undertaken to examine the occurrence of common ultraviolet filters (UVF) and light stabilizers (UVLS), and preservatives in four different estuaries in Port Philip Bay, Victoria, for the first time. In total, 11 UV filters, 10 UV stabilizers, 12 preservatives and a metabolite, and one fragrance were screened in grab samples of water and sediment using a combination of solid phase extraction and gas and liquid chromatography mass spectrometry measurement techniques. In that context, 16 of the UVF and UVLS and 5 of the preservatives screened were observed in water and/or sediment samples...
February 16, 2018: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29452723/q-marker-based-strategy-for-cmc-research-of-chinese-medicine-a-case-study-of-panax-notoginseng-saponins
#4
Yi Zhong, Jieqiang Zhu, Zhenzhong Yang, Qing Shao, Xiaohui Fan, Yiyu Cheng
BACKGROUND: To ensure pharmaceutical quality, chemistry, manufacturing and control (CMC) research is essential. However, due to the inherent complexity of Chinese medicine (CM), CMC study of CM remains a great challenge for academia, industry, and regulatory agencies. Recently, quality-marker (Q-marker) was proposed to establish quality standards or quality analysis approaches of Chinese medicine, which sheds a light on Chinese medicine's CMC study. PURPOSE: Here manufacture processes of Panax Notoginseng Saponins (PNS) is taken as a case study and the present work is to establish a Q-marker based research strategy for CMC of Chinese medicine...
January 31, 2018: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
https://www.readbyqxmd.com/read/29452235/improved-strength-of-silk-fibers-in-bombyx-mori-trimolters-induced-by-an-anti-juvenile-hormone-compound
#5
Kaiyu Guo, Zhaoming Dong, Yan Zhang, Dandan Wang, Muya Tang, Xiaolu Zhang, Qingyou Xia, Ping Zhao
BACKGROUND: Bombyx mori silk fibers with thin diameters have advantages of lightness and crease-resistance. Many studies have used anti-juvenile hormones to induce trimolters in order to generate thin silk; however, there has been comparatively little analysis of the morphology, structure and mechanical properties of trimolter silk. METHODS: This study induced two kinds of trimolters by appling topically anti-juvenile hormones and obtained thin diameter silk. Scanning electron microscope (SEM), FTIR analysis, tensile mechanical testing, chitin staining were used to reveal that the morphology, conformation and mechanical property of the trimolter silk...
February 13, 2018: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29449081/urinary-concentrations-of-benzophenone-type-ultra-violet-light-filters-and-reproductive-parameters-in-young-men
#6
Evdochia Adoamnei, Jaime Mendiola, Miriam Moñino-García, Fernando Vela-Soria, Luz M Iribarne-Durán, Mariana F Fernández, Nicolás Olea, Niels Jørgensen, Shanna H Swan, Alberto M Torres-Cantero
BACKGROUND: Benzophenone (BP)-type ultraviolet (UV) light filters are chemicals frequently added to personal care products, insect repellents, sunscreens, and beverage and food packaging to diminish the harmful effects of UV sunlight on human skin or foodstuffs. BP-type UV filters have shown negative effects on male reproduction function in in vitro and animal models, but human epidemiologic studies are limited. The goal of this study was to examine associations between urinary concentrations of BP-type UV filters and semen quality and reproductive hormone levels...
February 9, 2018: International Journal of Hygiene and Environmental Health
https://www.readbyqxmd.com/read/29448494/photocatalytic-degradation-of-oxytetracycline-by-ternary-mixed-catalyst-and-toxicity-assessment-using-boar-sperm
#7
Kefu Zhou, Xiao-Dan Xie, Xin-Yan Hu, Ming-Cheng Chen, Chang-Tang Chang
Response surface methodology was adopted to obtain ternary mixed catalysts of TiO2-loaded ZSM-5 zeolite and graphene. Oxytetracycline was used as challenged toxicant to evaluate the photocatalytic degradation efficiency of the composites. The optimal weight ratio of graphene, TiO2, and ZSM-5 was 1:8:1. The composites were characterized by ultraviolet-visible spectroscopy, X-ray diffraction, fourier transform infrared, N2 adsorption-desorption isotherms, and transmission electron microscope with an energy-dispersive spectroscopy system, etc...
February 1, 2018: Journal of Nanoscience and Nanotechnology
https://www.readbyqxmd.com/read/29447649/a-national-cross-sectional-analysis-of-dermatology-away-rotations-using-the-visiting-student-application-service-database
#8
Severine Z Cao, Vinod E Nambudiri
The highly competitive nature of the dermatology match requires applicants to undertake a variety of measures in the hopes of securing a residency position. Among the opportunities available to applicants is the chance to participate in away or "audition" rotations during their final year of undergraduate medical education. Away rotations are now performed by a majority of medical students applying into dermatology, but littleresearch has been done to describe the nature of this opportunity for interested applicants...
December 15, 2017: Dermatology Online Journal
https://www.readbyqxmd.com/read/29446262/lens-implementation-on-the-gate-monte-carlo-toolkit-for-optical-imaging-simulation
#9
Han Gyu Kang, Seong Hyun Song, Young Been Han, Kyeong Min Kim, Seong Jong Hong
Optical imaging techniques are widely used for in vivo preclinical studies, and it is well known that the Geant4 Application for Emission Tomography (GATE) can be employed for the Monte Carlo (MC) modeling of light transport inside heterogeneous tissues. However, the GATE MC toolkit is limited in that it does not yet include optical lens implementation, even though this is required for a more realistic optical imaging simulation. We describe our implementation of a biconvex lens into the GATE MC toolkit to improve both the sensitivity and spatial resolution for optical imaging simulation...
February 2018: Journal of Biomedical Optics
https://www.readbyqxmd.com/read/29444375/the-efficacy-and-safety-of-non-pharmacological-therapies-for-the-treatment-of-acne-vulgaris-a-systematic-review-and-best-evidence-synthesis
#10
F M C de Vries, A M Meulendijks, R J Driessen, A A van Dooren, E P M Tjin, P C M van de Kerkhof
BACKGROUND: Acne vulgaris is a multifaceted skin disorder, affecting more than 85% of young individuals worldwide. Pharmacological therapy is not always desirable because of the development of antibiotic resistance or the potential risk of adverse effects. Non-pharmacological therapies can be viable alternatives for conventional therapies. However, sufficient evidence based support in the efficacy and safety of non-pharmacological therapies is lacking. OBJECTIVE: To assess the efficacy and safety of several non-pharmacological therapies in the treatment of acne vulgaris...
February 14, 2018: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/29443082/analysis-of-arabidopsis-thaliana-growth-behavior-in-different-light-qualities
#11
Bettina Bölter, Franka Seiler, Jürgen Soll
Plant biologists often need to observe the growth behavior of their chosen species. To this end, the plants need constant environmental and stable light conditions, which are preferably variable in quantity and quality so that studies under different setups can be conducted. These requirements are met by climatic chambers featuring light emitting diodes (LED) lights, which can - in contrast to fluorescent lights - be set to different wavelengths. LEDs are energy conserving and emit virtually no heat even at light intensities, which often constitutes a problem with other light sources...
February 2, 2018: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29443045/routine-screening-method-for-microparticles-in-platelet-transfusions
#12
Daniel Millar, Larry Murphy, Audrey Labrie, Elisabeth Maurer-Spurej
Platelet inventory management based on screening microparticle content in platelet concentrates is a new quality improvement initiative for hospital blood banks. Cells fragment off microparticles (MP) when they are stressed. Blood and blood components may contain cellular fragments from a variety of cells, most notably from activated platelets. When performing their roles as innate immune cells and major players in coagulation and hemostasis, platelets change shape and generate microparticles. With dynamic light scattering (DLS)-based microparticle detection, it is possible to differentiate activated (high microparticle) from non-activated (low microparticle) platelets in transfusions, and optimize the use of this scarce blood product...
January 31, 2018: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29442632/a-facile-way-to-increase-the-cellular-uptake-efficiency-of-hybrid-nanoparticles
#13
Yihua Yang, Yingcai Meng, Enbo Zhang, Jinsong Ding
Lipid-polymer hybrid nanoparticles composed of polymer cores and lipid shells have been intensively studied as cancer drug delivery systems. The aim of the present study was to investigate the effect of phosphatidylcholine (PC) on physicochemical properties, stability and cellular uptake of lipid-poly(lactic-co-glycolic acid) (PLGA) hybrid nanoparticles. Coumarin-6 (cou-6) loaded hybrid nanoparticles (NPs) were prepared using PC with different alkyl chain lengths from C12 to C18, and were characterized by transmission electron microscopy (TEM), dynamic light scattering (DLS), and encapsulation efficiency (EE)...
July 1, 2018: Journal of Nanoscience and Nanotechnology
https://www.readbyqxmd.com/read/29442428/optogenetic-control-by-pulsed-illumination
#14
Julia Hennemann, Roman S Iwasaki, Tamara N Grund, Ralph P Diensthuber, Florian Richter, Andreas Möglich
Sensory photoreceptors evoke numerous adaptive responses in Nature and serve as light-gated actuators in optogenetics to enable the spatiotemporally precise, reversible and noninvasive control of cellular events. The output of optogenetic circuits can often be dialed in by varying illumination quality, quantity and duration. Here, we devise a programmable matrix of light-emitting diodes to efficiently probe the response of optogenetic systems to intermittently applied light of varying intensity and pulse frequency...
February 14, 2018: Chembiochem: a European Journal of Chemical Biology
https://www.readbyqxmd.com/read/29442231/a-cost-effectiveness-analysis-of-school-based-suicide-prevention-programmes
#15
Susan Ahern, Lee-Ann Burke, Brendan McElroy, Paul Corcoran, Elaine M McMahon, Helen Keeley, Vladimir Carli, Camilla Wasserman, Christina W Hoven, Marco Sarchiapone, Alan Apter, Judit Balazs, Raphaela Banzer, Julio Bobes, Romuald Brunner, Doina Cosman, Christian Haring, Michael Kaess, Jean-Pierre Kahn, Agnes Kereszteny, Vita Postuvan, Pilar A Sáiz, Peeter Varnik, Danuta Wasserman
Suicide is one of the leading causes of death among young people globally. In light of emerging evidence supporting the effectiveness of school-based suicide prevention programmes, an analysis of cost-effectiveness is required. We aimed to conduct a full cost-effectiveness analysis (CEA) of the large pan-European school-based RCT, Saving and Empowering Young Lives in Europe (SEYLE). The health outcomes of interest were suicide attempt and severe suicidal ideation with suicide plans. Adopting a payer's perspective, three suicide prevention interventions were modelled with a Control over a 12-month time period...
February 14, 2018: European Child & Adolescent Psychiatry
https://www.readbyqxmd.com/read/29442047/comprehensive-phytochemical-characterization-of-st-john-s-wort-hypericum-perforatum-l-oil-macerates-obtained-by-different-extraction-protocols-via-analytical-tools-applicable-in-routine-control
#16
M Heinrich, R Daniels, F C Stintzing, D R Kammerer
The aim of the present study was to investigate the impact of crucial process parameters, i.e. of light and temperature conditions, during the preparation of St. John's wort (SJW, Hypericum perforatum L.) Arachis oil macerates. Extracts were prepared according to a standardized protocol over a period of 28 days. For this purpose, flowering tops of H. perforatum were macerated with Arachis oil (drug extract ratio, DERnative 1:4) under different light and temperature conditions. Spectrophotometric measurements were carried out to quantitate naphthodianthrones and to characterize extract color in the CIE L*C*h° system...
March 1, 2017: Die Pharmazie
https://www.readbyqxmd.com/read/29441084/auxin-to-gibberellin-ratio-as-a-signal-for-light-intensity-and-quality-in-regulating-soybean-growth-and-matter-partitioning
#17
Feng Yang, Yuanfang Fan, Xiaoling Wu, Yajiao Cheng, Qinlin Liu, Lingyang Feng, Junxu Chen, Zhonglin Wang, Xiaochun Wang, Taiwen Yong, Weiguo Liu, Jiang Liu, Junbo Du, Kai Shu, Wenyu Yang
The intensity and quality (red to far-red (R/Fr) ratio) of light directly affect growth of plant under shading. Gibberellins (GAs) and auxin [indole-3-acetic acid (IAA)] play important roles in mediating the shading adaptive responses of plants. Thus, the intensity and quality of the uncoupling light from shading were assessed to identify the influence of each component on the morphology and matter distribution of the leaf, stem, and petiole. This assessment was based on the changes in endogenous Gibberellin 1 (GA1) and IAA levels...
2018: Frontiers in Plant Science
https://www.readbyqxmd.com/read/29439340/implementation-of-an-occupational-therapy-program-for-alzheimer-s-disease-patients-in-france-patients-and-caregivers-perspectives
#18
Aline Corvol, Alix Netter, Arnaud Campeon, Dominique Somme
BACKGROUND: The French National Alzheimer Plan 2008-2012 created specialized Alzheimer teams, which provide up to 15 sessions of cognitive rehabilitation in the patient's home for 3 months. Sessions are conducted by an occupational therapist and a gerontological nursing assistant. OBJECTIVES: As the patient's experience is one determinant of successful implementation, we explored the usefulness of these teams as viewed by the patient and his or her main caregiver...
2018: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/29438928/trees-are-all-around-us-farmers-management-of-wood-pastures-in-the-light-of-a-controversial-policy
#19
Mattias Sandberg, Simon Jakobsson
Wood pastures are some of the most species-rich environments found in Europe and therefore essential habitats for biodiversity conservation. Society also puts faith in multiple values of trees, ranging from climate change mitigation to socio-cultural traditions. Therefore, the seemingly arbitrary tree density limit for pasture environments imposed by the EU through its Common Agricultural Policy (CAP) threatened both biological and societal values. In this study on farmers' perspectives, we target the effects of the CAP tree density limit on management of wood pastures in a low-intensively managed agricultural landscape of southern Sweden...
February 10, 2018: Journal of Environmental Management
https://www.readbyqxmd.com/read/29438476/influence-of-winter-cover-crop-mulch-on-arthropods-in-a-reduced-tillage-cucurbit-system
#20
Amanda L Buchanan, Cerruti R R Hooks
Winter cover crop mulches can diversify agricultural habitats and provide a range of benefits for crop production and pest management. Here we report the influence of strip tilled winter cover crop mulches on arthropod abundance in organic vegetable plots. Crookneck squash (Cucurbita pepo L.; Cucurbitales: Cucurbitaceae) was direct seeded into mowed and strip tilled barley (Hordeum vulgare L.; Poales: Poaceae), crimson clover (Trifolium incarnatum L.; Fabales: Fabaceae), a barley + crimson clover mixture, or a no-cover crop control...
February 9, 2018: Environmental Entomology
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