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https://www.readbyqxmd.com/read/28340027/influence-of-long-term-in-vivo-exposure-debris-accumulation-and-archwire-material-on-friction-force-among-different-types-of-brackets-and-archwires-couples
#1
Uroš Mezeg, Jasmina Primožic
Objective: The aim was to assess the influence of long-term in vivo exposure, debris accumulation and archwire material on static and kinetic friction force among different types of brackets and archwires couples. Material and Methods: Friction testing was performed among four lower incisors' brackets, conventional and self-ligating (SL), coupled with either nickel-titanium or stainless steel archwires, as-received and in vivo exposed in 18 subjects. The friction testing was performed for a sliding distance of 14 mm at a speed of 10 mm/min, with a starting force of 0...
February 28, 2017: European Journal of Orthodontics
https://www.readbyqxmd.com/read/28339591/comparison-of-the-force-levels-among-labial-and-lingual-self-ligating-and-conventional-brackets-in-simulated-misaligned-teeth
#2
Ahmad Alobeid, Tarek El-Bialy, Said Khawatmi, Cornelius Dirk, Andreas Jäger, Christoph Bourauel
Background/objective: The aim of this study was to evaluate force levels exerted by levelling arch wires with labial and lingual conventional and self-ligating brackets. Materials/methods: The tested orthodontic brackets were of the 0.022-in slot size for labial and 0.018-in for lingual brackets and were as follows: 1. Labial brackets: (i) conventional bracket (GAC-Twin, Dentsply), (ii) passive self-ligating (SL) brackets (Damon-Q®, ORMCO; Ortho classic H4™, Orthoclassic; FLI®SL, Rocky Mountain Orthodontics) and (iii) active SL brackets (GAC In-Ovation®C, DENTSPLY and SPEED™, Strite)...
January 25, 2017: European Journal of Orthodontics
https://www.readbyqxmd.com/read/28337837/sulfated-hyaluronan-attenuates-inflammatory-signaling-pathways-in-macrophages-involving-induction-of-antioxidants
#3
Florent Jouy, Nadine Lohmann, Elke Wandel, Gloria Ruiz-Gómez, M Teresa Pisabarro, Annette G Beck-Sickinger, Matthias Schnabelrauch, Stephanie Moeller, Jan C Simon, Stefan Kalkhof, Martin von Bergen, Sandra Franz
It is well recognized that high molecular weight hyaluronan (H-HA) exerts potent anti-inflammatory effects while its fragmentation into low molecular weight HA (L-HA) is discussed to promote inflammation. Chemical modification of HA with sulfate groups has been shown to foster its anti-inflammatory activity which seems to be maintained in sulfated low molecular weight HA derivatives (sL-HA). However, the molecular mechanisms by which sL-HA produces its anti-inflammatory activity are not understood. In this study, we used global quantitative proteomics combined with targeted analysis of key proteins to characterize the effect of sL-HA on fully differentiated human inflammatory macrophages (iMФ)...
March 24, 2017: Proteomics
https://www.readbyqxmd.com/read/28337706/clinical-and-radiological-outcomes-of-two-level-endoscopic-posterior-cervical-foraminotomy
#4
Myung Soo Youn, Myeong Hwan Shon, Yoon Jae Seong, Jong Ki Shin, Tae Sik Goh, Jung Sub Lee
PURPOSE: The efficacy and safety of endoscopic posterior cervical foraminotomy (EPCF) have been demonstrated for single-level cervical radiculopathy, but no report in the medical literature has described the clinical results of two-level EPCF. The aim of this study was to assess the clinical and radiological outcomes of two-level EPCF performed in patients with cervical radiculopathy. METHODS: Twenty-two consecutive patients (9 females and 13 males) that underwent two-level EPCF with cervical radiculopathy from January 2012 to January 2014 were included in this study...
March 23, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28336538/effects-of-dobutamine-on-intestinal-microvascular-blood-flow-heterogeneity-and-oxygen-extraction-during-septic-shock
#5
Gustavo Adolfo Ospina-Tascón, Alberto Federico García Marín, Gabriel J Echeverri, William Fernando Bermúdez, Humberto José Madriñán Navia, Juan David Valencia, Edgardo Quiñones, Fernando Rodríguez, Angela Marulanda, César Augusto Arango Davila, Alejandro Bruhn, Glenn Hernández, Daniel De Backer
Derangements of microvascular blood flow distribution might contribute to disturbing oxygen extraction by peripheral tissues. We evaluated the dynamic relationships between the mesenteric oxygen extraction ratio (mes-ERO2) and the heterogeneity of microvascular blood flow at the gut and sublingual mucosa, during the development and resuscitation of septic shock in a swine model of fecal peritonitis. Jejunal-villi and sublingual microcirculation were evaluated using a portable intravital-microscopy technique...
March 23, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28335460/neuropsychology-of-aesthetic-judgment-of-ambiguous-and-non-ambiguous-artworks
#6
Maddalena Boccia, Sonia Barbetti, Laura Piccardi, Cecilia Guariglia, Anna Maria Giannini
Several affective and cognitive processes have been found to be pivotal in affecting aesthetic experience of artworks and both neuropsychological as well as psychiatric symptoms have been found to affect artistic production. However, there is a paucity of studies directly investigating effects of brain lesions on aesthetic judgment. Here, we assessed the effects of unilateral brain damage on aesthetic judgment of artworks showing part/whole ambiguity. We asked 19 unilaterally brain-damaged patients (10 left and 9 right brain damaged patients, respectively LBDP and RBDP) and 20 age- and education-matched healthy individuals (controls, C) to rate 10 Arcimboldo's ambiguous portraits (AP), 10 realistic Renaissance portraits (RP), 10 still life paintings (SL), and 10 Arcimboldo's modified portraits where only objects/parts are detectable (AO)...
March 18, 2017: Behavioral Sciences
https://www.readbyqxmd.com/read/28331495/development-and-in-vitro-evaluation-of-liposomes-using-soy-lecithin-to-encapsulate-paclitaxel
#7
Thi Lan Nguyen, Thi Hiep Nguyen, Dai Hai Nguyen
The formulation of a potential delivery system based on liposomes (Lips) formulated from soy lecithin (SL) for paclitaxel (PTX) was achieved (PTX-Lips). At first, PTX-Lips were prepared by thin film method using SL and cholesterol and then were characterized for their physiochemical properties (particle size, polydispersity index, zeta potential, and morphology). The results indicated that PTX-Lips were spherical in shape with a dynamic light scattering (DLS) particle size of 131 ± 30.5 nm. Besides, PTX was efficiently encapsulated in Lips, 94...
2017: International Journal of Biomaterials
https://www.readbyqxmd.com/read/28331435/methylated-dna-rna-in-body-fluids-as-biomarkers-for-lung-cancer
#8
REVIEW
Yan Lu, Shulin/Sl Li, Shiguo/Sg Zhu, Yabin/Yb Gong, Jun/J Shi, Ling/L Xu
DNA/RNA methylation plays an important role in lung cancer initiation and progression. Liquid biopsy makes use of cells, nucleotides and proteins released from tumor cells into body fluids to help with cancer diagnosis and prognosis. Methylation of circulating tumor DNA (ctDNA) has gained increasing attention as biomarkers for lung cancer. Here we briefly introduce the biological basis and detection method of ctDNA methylation, and review various applications of methylated DNA in body fluids in lung cancer screening, diagnosis, prognosis, monitoring and treatment prediction...
2017: Biological Procedures Online
https://www.readbyqxmd.com/read/28329800/characterizing-readiness-for-advance-care-planning-from-the-perspective-of-residents-families-and-clinicians-an-interpretive-descriptive-study-in-supportive-living
#9
Marta Shaw, Jennifer Hewson, David B Hogan, Shelley Raffin Bouchal, Jessica Simon
Background and Objectives: Advance care planning (ACP) involves reflection on health care preferences and communication of the person's wishes in case of future incapacity. ACP is particularly pertinent in supportive living (SL) as residents are at high risk of cognitive decline and changes in health status, but the readiness of residents, families, and health care practitioners to engage in ACP discussions is not known. The purpose of this study was to explore the readiness among these stakeholders and the factors that influence the degree of readiness...
February 18, 2017: Gerontologist
https://www.readbyqxmd.com/read/28329356/sleep-disturbances-and-risk-of-hospitalization-and-inpatient-days-among-older-women
#10
Misti L Paudel, Brent C Taylor, Tien N Vo, Allyson M Kats, John T Schousboe, Li-Yung Lui, Charles E McCulloch, Lisa Langsetmo, Sonia Ancoli-Israel, Susan Redline, Kristine Yaffe, Katie L Stone, Teresa A Hillier, Kristine E Ensrud
Study Objective: Determine the associations of sleep disturbances with hospitalization risk among older women. Methods: 1,827 women (mean age 83.6 years) participating in Study of Osteoporotic Fractures Year 16 (Y16) examination (2002-2004) linked with Medicare and/or HMO claims. At Y16 examination, sleep/wake parameters were measured by actigraphy (total sleep time [TST], sleep efficiency [SE], sleep latency [SL], and wake after sleep onset [WASO]) and subjective sleep measures (sleep quality [Pittsburgh Sleep Quality Index] and daytime sleepiness [Epworth Sleepiness Scale]) were assessed by questionnaire...
March 1, 2017: Sleep
https://www.readbyqxmd.com/read/28327529/mass-spectrometric-characteristics-of-prenylated-indole-derivatives-from-marine-derived-penicillium-sp-nh-sl
#11
Hui Ding, Wanjing Ding, Zhongjun Ma
Two prenylated indole alkaloids were isolated from the ethyl acetate extracts of a marine-derived fungus Penicillium sp. NH-SL and one of them exhibited potent cytotoxic activity against mouse hepa 1c1c7 cells. In order to detect other bioactive analogs, we used liquid chromatogram tandem mass spectrometry (LC-MS/MS) to analyze the mass spectrometric characteristics of the isolated compounds as well as the crude extracts. As a result, three other analogs were detected, and their structures were deduced according to the similar fragmentation patterns...
March 22, 2017: Marine Drugs
https://www.readbyqxmd.com/read/28323788/traumatic-colon-injury-in-damage-control-laparotomy-a-multicenter-trial-is-it-safe-to-do-a-delayed-anastomosis
#12
Leah Carey Tatebe, Andrew Jennings, Ken Tatebe, Alexandra Handy, Purvi Prajapati, Michael Smith, Tai Do, Gerald O Ogola, Rajesh R Gandhi, Therese M Duane, Stephen Luk, Laura Bruce Petrey
BACKGROUND: Delayed colonic anastomosis after damage control laparotomy (DCL) is an alternative to colostomies during a single laparotomy (SL) in high-risk patients. However, literature suggests increased colonic leak rates up to 27% with DCL, and various reported risk factors. We evaluated our regional experience to determine if delayed colonic anastomosis was associated with worse outcomes. METHODS: A multicenter retrospective cohort study was performed across three Level I trauma centers encompassing traumatic colon injuries from January 2006 through June 2014...
April 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28321813/harnessing-the-immune-system-against-leukemia-monoclonal-antibodies-and-checkpoint-strategies-for-aml
#13
Lucia Masarova, Hagop Kantarjian, Guillermo Garcia-Mannero, Farhad Ravandi, Padmanee Sharma, Naval Daver
Acute myeloid leukemia (AML) is the most common leukemia among adults and is associated with a poor prognosis, especially in patients with adverse prognostic factors, older age, or relapsed disease. The last decade has seen a surge in successful immune-based therapies in various solid tumors; however, the role of immune therapies in AML remains poorly defined. This chapter describes the rationale, clinical data, and toxicity profiles of immune-based therapeutic modalities in AML including naked and conjugated monoclonal antibodies, bispecific T-cell engager antibodies, chimeric antigen receptor (CAR)-T cells, and checkpoint blockade via blockade of PD1/PDL1 or CTLA4...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28303149/qtl-hotspots-for-early-vigor-and-related-traits-under-dry-direct-seeded-system-in-rice-oryza-sativa-l
#14
Uma M Singh, Shailesh Yadav, Shilpi Dixit, P Janaki Ramayya, M Nagamallika Devi, K Anitha Raman, Arvind Kumar
Strong seedling vigor is desirable trait in dry direct-seeded rice (DSR) for enhancing crop establishment and the ability to compete against weeds. A set of 253 BC3F4 lines derived from cross between Swarna and Moroberekan was phenotyped for early vigor (EV) and 8 related traits viz., early uniform emergence (EUE), shoot length (SHL), stem length (SL), shoot fresh weight (SFW), total fresh weight (TFW), shoot dry weight (SDW), total dry weight (TDW), and root dry weight (RDW). Composite interval mapping analysis using genotypic data from 194 SNP markers identified six genomic regions associated with traits on chromosomes 3, 4, 5, and 6 with phenotypic variance ranging from 2...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28300525/disaster-preparedness-among-health-professionals-and-support-staff-what-is-effective-an-integrative-literature-review
#15
Jeremy R Gowing, Kim N Walker, Shandell L Elmer, Elizabeth A Cummings
Introduction It is important that health professionals and support staff are prepared for disasters to safeguard themselves and the community during disasters. There has been a significantly heightened focus on disasters since the terrorist attacks of September 11, 2001 in New York (USA); however, despite this, it is evident that health professionals and support staff may not be adequately prepared for disasters. Report An integrative literature review was performed based on a keyword search of the major health databases for primary research evaluating preparedness of health professionals and support staff...
March 16, 2017: Prehospital and Disaster Medicine
https://www.readbyqxmd.com/read/28300040/spin-liquid-and-infinitesimal-disorder-driven-cluster-spin-glass-in-the-kagome-lattice
#16
M Schmidt, F M Zimmer, S G Magalhaes
The interplay between geometric frustration (GF) and bond disorder is studied in the Ising kagome lattice within a cluster approach. The model considers antiferromagnetic short-range couplings and long-range intercluster disordered interactions. The replica formalism is used to obtain an effective single cluster model from where the thermodynamics is analyzed by exact diagonalization. We found that the presence of GF can introduce cluster freezing at very low levels of disorder. The system exhibits an entropy plateau followed by a large entropy drop close to the freezing temperature...
April 26, 2017: Journal of Physics. Condensed Matter: An Institute of Physics Journal
https://www.readbyqxmd.com/read/28295682/nanocube-superlattices-of-cesium-lead-bromide-perovskites-and-pressure-induced-phase-transformations-at-atomic-and-mesoscale-levels
#17
Yasutaka Nagaoka, Katie Hills-Kimball, Rui Tan, Ruipeng Li, Zhongwu Wang, Ou Chen
Lead halide perovskites are promising materials for a range of applications owing to their unique crystal structure and optoelectronic properties. Understanding the relationship between the atomic/mesostructures and the associated properties of perovskite materials is crucial to their application performances. Herein, the detailed pressure processing of CsPbBr3 perovskite nanocube superlattices (NC-SLs) is reported for the first time. By using in situ synchrotron-based small/wide angle X-ray scattering and photoluminescence (PL) probes, the NC-SL structural transformations are correlated at both atomic and mesoscale levels with the band-gap evolution through a pressure cycle of 0 ↔ 17...
March 10, 2017: Advanced Materials
https://www.readbyqxmd.com/read/28295263/preschoolers-genetic-physiological-and-behavioral-sensitivity-factors-moderate-links-between-parenting-stress-and-child-internalizing-externalizing-and-sleep-problems
#18
Molly Davis, Kristel Thomassin, Joanie Bilms, Cynthia Suveg, Anne Shaffer, Steven R H Beach
This study examined three potential moderators of the relations between maternal parenting stress and preschoolers' adjustment problems: a genetic polymorphism-the short allele of the serotonin transporter (5-HTTLPR, ss/sl allele) gene, a physiological indicator-children's baseline respiratory sinus arrhythmia (RSA), and a behavioral indicator-mothers' reports of children's negative emotionality. A total of 108 mothers (Mage  = 30.68 years, SDage  = 6.06) reported on their parenting stress as well as their preschoolers' (Mage  = 3...
March 14, 2017: Developmental Psychobiology
https://www.readbyqxmd.com/read/28290480/experimental-evidences-for-reducing-mg-activation-energy-in-high-al-content-algan-alloy-by-mgga-%C3%AE-doping-in-aln-m-gan-n-superlattice
#19
Xiao Wang, Wei Wang, Jingli Wang, Hao Wu, Chang Liu
P-type doping in high Al-content AlGaN alloys is a main challenge for realizing AlGaN-based deep ultraviolet optoelectronics devices. According to the first-principles calculations, Mg activation energy may be reduced so that a high hole concentration can be obtained by introducing nanoscale (AlN)5/(GaN)1 superlattice (SL) in Al0.83Ga0.17N disorder alloy. In this work, experimental evidences were achieved by analyzing Mg doped high Al-content AlGaN alloys and Mg doped AlGaN SLs as well as MgGa δ doped AlGaN SLs...
March 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28286672/is-ultrasonography-useful-for-population-studies-on-schistosomiasis-mansoni-an-evaluation-based-on-a-survey-on-a-population-from-kome-island-tanzania
#20
Mats Sl Asztely, Bo Eriksson, Reverianus M Gabone, Lars-Åke Nilsson
BACKGROUND: Observation of characteristic alterations at liver ultrasonography in clinical schistosomiasis mansoni cases has initiated utilization of this examination method in population surveys in areas where this disease is endemic. PURPOSE: To present results of liver ultrasonography and their relation to epidemiological data of a population in an area endemic for S. mansoni, to estimate the precision of classification of periportal anatomy changes known as periportal fibrosis (PPF), and to evaluate the relevance of ultrasonography in epidemiological studies on S...
December 2016: Acta Radiologica Open
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