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https://www.readbyqxmd.com/read/28934633/association-of-low-back-pain-with-muscle-stiffness-and-muscle-mass-of-the-lumbar-back-muscles-and-sagittal-spinal-alignment-in-young-and-middle-aged-medical-workers
#1
Mitsuhiro Masaki, Tomoki Aoyama, Takashi Murakami, Ko Yanase, Xiang Ji, Hiroshige Tateuchi, Noriaki Ichihashi
BACKGROUND: Muscle stiffness of the lumbar back muscles in low back pain (LBP) patients has not been clearly elucidated because quantitative assessment of the stiffness of individual muscles was conventionally difficult. This study aimed to examine the association of LBP with muscle stiffness assessed using ultrasonic shear wave elastography (SWE) and muscle mass of the lumbar back muscle, and spinal alignment in young and middle-aged medical workers. METHODS: The study comprised 23 asymptomatic medical workers [control (CTR) group] and 9 medical workers with LBP (LBP group)...
September 14, 2017: Clinical Biomechanics
https://www.readbyqxmd.com/read/28934607/a-visible-light-driven-heterojuncted-composite-wo3-bi12o17cl2-synthesis-characterization-and-improved-photocatalytic-performance
#2
Jiaojiao Zheng, Fei Chang, Mingzhi Jiao, Quan Xu, Baoqing Deng, Xuefeng Hu
Novel visible-light-driven WO3/Bi12O17Cl2 heterojuncted photocatalysts with different mass ratios were successfully fabricated by a facile hydrothermal process and were characterized by XRD, UV-Vis DRS, SEM, TEM, HRTEM, XPS, BET, Raman, PL, and ESR techniques. The original morphology of Bi12O17Cl2 was maintained after the addition of WO3 nanoparticles and the specific surface area values of WBx composites were obviously enlarged. The intimate contact of both components in HRTEM confirmed the generation of smooth phase interface...
September 14, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28934550/structural-and-mechanical-roles-for-the-c-terminal-non-repetitive-domain-become-apparent-in-recombinant-spider-aciniform-silk
#3
Lingling Xu, Thierry Lefèvre, Kathleen E Orrell, Qing Meng, Michèle Auger, Xiang-Qin Liu, Jan K Rainey
Spider aciniform (or wrapping) silk is the toughest of the seven types of spider silks/glue due to a combination of high elasticity and strength. Like most spider silk proteins (spidroins), aciniform spidroin (AcSp1) has a large core repetitive domain flanked by relatively short N- and C-terminal non-repetitive domains (the NTD and CTD, respectively). The major ampullate silk protein (MaSp) CTD has been shown to control protein solubility and fiber formation, but the aciniform CTD function remains unknown. Here, we compare fiber mechanical properties, solution-state structuring, and fibrous state secondary structural composition and orientation relative to native aciniform silk for two AcSp1 repeat units with or without fused AcSp1- and MaSp-derived CTDs alongside three AcSp1 repeat units without a CTD...
September 21, 2017: Biomacromolecules
https://www.readbyqxmd.com/read/28934535/quantification-of-imaging-error-in-the-measurement-of-cup-position-a-cadaveric-comparison-of-radiographic-and-computed-tomography-imaging
#4
Ran Schwarzkopf, Jonathan M Vigdorchik, Theodore T Miller, Eric A Bogner, Jeffrey M Muir, Michael B Cross
Postoperative radiographs remain the standard for assessment of component placement following total hip arthroplasty (THA), despite the known limitations of radiographs. Computed tomography (CT) scanning offers improved accuracy, but its costs and radiation exposure are prohibitive. The authors performed a cadaver study to compare the error associated with radiographs with that of CT scans following THA. The authors also compared imaging with a novel mini-navigation system. Three board-certified orthopedic surgeons each performed 4 THA procedures (6 cadavers, 12 hips) via the posterior approach using a mini-navigation tool to assist with component placement...
September 21, 2017: Orthopedics
https://www.readbyqxmd.com/read/28934487/supernalign-a-new-tool-for-flexible-superposition-of-homologous-rna-structures-and-inference-of-accurate-structure-based-sequence-alignments
#5
Pawel Piatkowski, Jagoda Jablonska, Adriana Zyla, Dorota Niedzialek, Dorota Matelska, Elzbieta Jankowska, Tomasz Walen, Wayne K Dawson, Janusz M Bujnicki
RNA has been found to play an ever-increasing role in a variety of biological processes. The function of most non-coding RNA molecules depends on their structure. Comparing and classifying macromolecular 3D structures is of crucial importance for structure-based function inference and it is used in the characterization of functional motifs and in structure prediction by comparative modeling. However, compared to the numerous methods for protein structure superposition, there are few tools dedicated to the superimposing of RNA 3D structures...
September 19, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/28934466/cohesin-acetyltransferase-esco2-regulates-sac-and-kinetochore-functions-via-maintaining-h4k16-acetylation-during-mouse-oocyte-meiosis
#6
Yajuan Lu, Xiaoxin Dai, Mianqun Zhang, Yilong Miao, Changyin Zhou, Zhaokang Cui, Bo Xiong
Sister chromatid cohesion, mediated by cohesin complex and established by the acetyltransferases Esco1 and Esco2, is essential for faithful chromosome segregation. Mutations in Esco2 cause Roberts syndrome, a developmental disease characterized by severe prenatal retardation as well as limb and facial abnormalities. However, its exact roles during oocyte meiosis have not clearly defined. Here, we report that Esco2 localizes to the chromosomes during oocyte meiotic maturation. Depletion of Esco2 by morpholino microinjection leads to the precocious polar body extrusion, the escape of metaphase I arrest induced by nocodazole treatment and the loss of BubR1 from kinetochores, indicative of inactivated SAC...
September 19, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/28934378/investigating-difficult-nodes-in-the-placental-mammal-tree-with-expanded-taxon-sampling-and-thousands-of-ultraconserved-elements
#7
Jacob A Esselstyn, Carl H Oliveros, Mark T Swanson, Brant C Faircloth
The phylogeny of eutherian mammals contains some of the most recalcitrant nodes in the tetrapod tree of life. We combined comprehensive taxon and character sampling to explore three of the most debated interordinal relationships among placental mammals. We performed in silico extraction of ultraconserved element loci from 72 published genomes and invitro enrichment and sequencing of ultraconserved elements from 28 additional mammals, resulting in alignments of 3,787 loci. We analyzed these data using concatenated and multispecies coalescent phylogenetic approaches, topological tests, and exploration of support among individual loci to identify the root of Eutheria and the sister groups of tree shrews (Scandentia) and horses (Perissodactyla)...
September 1, 2017: Genome Biology and Evolution
https://www.readbyqxmd.com/read/28934310/sanger-and-next-generation-sequencing-data-for-characterization-of-ctl-epitopes-in-archived-hiv-1-proviral-dna
#8
Camille Tumiotto, Lionel Riviere, Pantxika Bellecave, Patricia Recordon-Pinson, Alice Vilain-Parce, Gwenda-Line Guidicelli, Hervé Fleury
One of the strategies for curing viral HIV-1 is a therapeutic vaccine involving the stimulation of cytotoxic CD8-positive T cells (CTL) that are Human Leucocyte Antigen (HLA)-restricted. The lack of efficiency of previous vaccination strategies may have been due to the immunogenic peptides used, which could be different from a patient's virus epitopes and lead to a poor CTL response. To counteract this lack of specificity, conserved epitopes must be targeted. One alternative is to gather as many data as possible from a large number of patients on their HIV-1 proviral archived epitope variants, taking into account their genetic background to select the best presented CTL epitopes...
2017: PloS One
https://www.readbyqxmd.com/read/28934183/trends-in-cervical-cancer-screening-in-title-x-funded-health-centers-united-states-2005-2015
#9
Christina I Fowler, Mona Saraiya, Susan B Moskosky, Jacqueline W Miller, Julia Gable, Nancy Mautone-Smith
Cervical cancer screening is critical to early detection and treatment of precancerous cells and cervical cancer. In 2015, 83% of U.S. women reported being screened per current recommendations, which is below the Healthy People 2020 target of 93% (1,2). Disparities in screening persist for women who are younger (aged 21-30 years), have lower income, are less educated, are uninsured, lack a source of health care, or who self-identify as Asian or American Indian/Alaska Native (2). Women who are never screened or rarely screened are more likely to develop cancer and receive a cancer diagnosis at later stages than women who are screened regularly (3)...
September 22, 2017: MMWR. Morbidity and Mortality Weekly Report
https://www.readbyqxmd.com/read/28934034/transfiguring-light-and-symphonic-blooming-a-wabi-sabi-story-of-humanbecoming-and-human-caring
#10
Lois S Kelley
Transfiguring Light and Symphonic Blooming is word-art to describe the flowering of the humanbecoming and human caring schools of thought over time. A Wabi Sabi story journey was created to turn the tide in a world where the building of a unique body of knowledge for nursing has fallen into disfavor with nursing itself. Using nature-aligned paintings and a Japanese story-art aesthetic with poetry, the beauty of falling away to unitary essentials and holding the value of "both-and" in unitary consciousness was illuminated...
October 2017: Nursing Science Quarterly
https://www.readbyqxmd.com/read/28933874/wisdom-bias-and-balance-toward-a-process-sensitive-measurement-of-wisdom-related-cognition
#11
Justin P Brienza, Franki Y H Kung, Henri C Santos, D Ramona Bobocel, Igor Grossmann
Philosophers and behavioral scientists refer to wisdom as unbiased reasoning that guides one toward a balance of interests and promotes a good life. However, major instruments developed to test wisdom appear biased, and it is unclear whether they capture balance-related tendencies. We examined whether shifting from global, de-contextualized reports to state-level reports about concrete situations provides a less biased method to assess wise reasoning (e.g., intellectual humility, recognition of uncertainty and change, consideration of the broader context at hand and perspectives of others, integration of these perspectives or compromise), which may be aligned with the notion of balancing interests...
September 21, 2017: Journal of Personality and Social Psychology
https://www.readbyqxmd.com/read/28933709/evidence-for-misspecification-of-a-nationally-used-quality-measure-for-substance-use-treatment
#12
Soeren Mattke, Zachary Predmore, Elizabeth Sloss, Asa Wilks, Katherine E Watkins
OBJECTIVES: The National Committee for Quality Assurance's (NCQA) measure "Initiation and Engagement of Alcohol and Other Drug Dependence Treatment" captures the proportion of substance use patients with (1) treatment initiation within 14 days and (2) treatment engagement within 30 days thereafter. The definition of treatment considers only counseling but not medication-assisted treatment (MAT), although MAT is supported by current guidelines. Our research question is whether this omission results in meaningful measurement error...
September 4, 2017: Journal for Healthcare Quality: Official Publication of the National Association for Healthcare Quality
https://www.readbyqxmd.com/read/28933593/dynein-promotes-porcine-oocyte-meiotic-progression-by-maintaining-cytoskeletal-structures-and-cortical-granule-arrangement
#13
Yilong Miao, Changyin Zhou, Zhaokang Cui, Liansheng Tang, Xiayan ShiYang, Yajuan Lu, Mianqun Zhang, Xiaoxin Dai, Bo Xiong
Cytoplasmic dynein is a family of cytoskeletal motor proteins that move towards the minus-end of the microtubules to perform functions in a variety of mitotic processes such as cargo transport, organelle positioning, chromosome movement and centrosome assembly. However, its specific roles during mammalian oocyte meiosis have not been fully defined. Herein, we investigated the critical events during porcine oocyte meiotic maturation after inhibition of dynein by Ciliobrevin D treatment. We found that oocyte meiotic progression was arrested when inhibited of dynein by showing the poor expansion of cumulus cells and decreased rate of polar body extrusion...
September 21, 2017: Cell Cycle
https://www.readbyqxmd.com/read/28933472/gas-adsorption-capacity-in-an-all-carbon-nanomaterial-composed-of-carbon-nanohorns-and-vertically-aligned-carbon-nanotubes
#14
Divya Puthusseri, Deepu J Babu, Sherif Okeil, Jörg J Schneider
Whereas vertically aligned carbon nanotubes (VACNTs) typically show a promising adsorption behavior at high pressures, carbon nanohorns (CNHs) exhibit superior gas adsorption properties in the low pressure regime due to their inherent microporosity. These adsorption characteristics are further enhanced when both materials are opened at their tips. The so prepared composite material allows one to investigate the effect of physical entrapment of CO2 molecules within the specific adsorption sites of VACNTs composed of opened double walled carbon nanotubes (CNTs) and in specific adsorption sites created by spherically aggregated opened single walled carbon nanohorns...
September 21, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28932862/tailored-release-of-triiodothyronine-and-retinoic-acid-from-a-spatio-temporally-fabricated-nanofiber-composite-instigating-neuronal-differentiation
#15
Aishwarya Satish, Purna Sai Korrapati
Regeneration of the central and peripheral nervous system is challenging since the functional restoration of injured nerves is an incredible task. The fabrication of an ideal nerve guide that fulfills the requirement to regenerate nerve tissue is a herculean challenge requiring a combination of both biochemical and topographical cues. The present study explores the combinatorial effect of aligned nanofibers and the regulated delivery of triiodothyronine and retinoic acid on nerve regeneration. A sequential release mechanism is adopted in fabricating the nanofiber scaffold, with triiodothyronine incorporated into the nanofiber shell ensuring its prior release, followed by retinoic acid (entrapped within zein nanoparticles) from the core...
September 21, 2017: Nanoscale
https://www.readbyqxmd.com/read/28932657/draw-spinning-of-kilometer-long-and-highly-stretchable-polymer-submicrometer-fibers
#16
Suiyang Liao, Xiaopeng Bai, Jianan Song, Qingyun Zhang, Jie Ren, Yusen Zhao, Hui Wu
A new method is developed to directly spinning perfectly uniaxial fibers in an ultrafast manner. Besides, this method can tune the fibers' diameter through adjusting processing parameters such as the feeding rate of precursors. Uniaxial nylon 66 fibers prepared via this method show superior mechanical properties due to the alignment in each level of the structure.
September 2017: Advanced Science (Weinheim, Baden-Wurttemberg, Germany)
https://www.readbyqxmd.com/read/28932652/psychosocial-treatment-options-for-major-depressive-disorder-in-older-adults
#17
Brenna N Renn, Patricia A Areán
Late-life depression (LLD) is a public health concern with deleterious effects on overall health, cognition, quality of life, and mortality. Although LLD is relatively common, it is not a normal part of aging and is often under-recognized in older adults. However, psychotherapy is an effective treatment for LLD that aligns with many patients' preferences and can improve health and functioning. This review synthesized the current literature on evidence-based psychotherapies for the treatment of depression in older adults...
March 2017: Current Treatment Options in Psychiatry
https://www.readbyqxmd.com/read/28932503/effect-of-high-tibial-osteotomy-on-hip-biomechanics-in-patients-with-genu-varum-a%C3%A2-prospective-cohort-study
#18
Mehdi Moghtadaei, Ali Yeganeh, Bahram Boddouhi, Atefe Alaee, Hossein Farahini, Babak Otoukesh
BACKGROUND AND AIMS: The aim of this study is to evaluate the effect of proximal tibia osteotomy on hip biomechanics. METHODS: This cohort study was conducted on 50 knees of 37 patients divided into two groups of unilateral and bilateral surgeries during 2015-2016. Patients underwent medial open-wedge osteotomy of proximal tibia. Axial alignment of lower limb radiography was carried out for the patients before and after the osteotomy. RESULTS: Findings from unilateral and bilateral high tibial osteotomies demonstrated that the average of greater trochanter (GT) angle from femoral head center and also the average angle of knee varus were significantly decreased (P = 0...
June 2017: Interventional Medicine & Applied Science
https://www.readbyqxmd.com/read/28932269/evaluation-and-performance-of-a-newly-developed-patient-reported-outcome-instrument-for-diarrhea-predominant-irritable-bowel-syndrome-in-a-clinical-study-population
#19
Leticia Delgado-Herrera, Kathryn Lasch, Bernhardt Zeiher, Anthony J Lembo, Douglas A Drossman, Benjamin Banderas, Kathleen Rosa, Christopher Lademacher, Rob Arbuckle
BACKGROUND: To evaluate the psychometric properties of the newly developed seven-item Irritable Bowel Syndrome - Diarrhea predominant (IBS-D) Daily Symptom Diary and four-item Event Log using phase II clinical trial safety and efficacy data in patients with IBS-D. This instrument measures diarrhea (stool frequency and stool consistency), abdominal pain related to IBS-D (stomach pain, abdominal pain, abdominal cramps), immediate need to have a bowel movement (immediate need and accident occurrence), bloating, pressure, gas, and incomplete evacuation...
September 2017: Therapeutic Advances in Gastroenterology
https://www.readbyqxmd.com/read/28931929/a-resource-of-large-scale-molecular-markers-for-monitoring-agropyron-cristatum-chromatin-introgression-in-wheat-background-based-on-transcriptome-sequences
#20
Jinpeng Zhang, Weihua Liu, Yuqing Lu, Qunxing Liu, Xinming Yang, Xiuquan Li, Lihui Li
Agropyron cristatum is a wild grass of the tribe Triticeae and serves as a gene donor for wheat improvement. However, very few markers can be used to monitor A. cristatum chromatin introgressions in wheat. Here, we reported a resource of large-scale molecular markers for tracking alien introgressions in wheat based on transcriptome sequences. By aligning A. cristatum unigenes with the Chinese Spring reference genome sequences, we designed 9602 A. cristatum expressed sequence tag-sequence-tagged site (EST-STS) markers for PCR amplification and experimental screening...
September 20, 2017: Scientific Reports
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