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https://www.readbyqxmd.com/read/28092922/the-effectiveness-of-free-vascularized-fibular-flaps-in-osteonecrosis-of-the-femoral-head-and-neck-a-systematic-review
#1
Cassandra A Ligh, Jonas A Nelson, John P Fischer, Stephen J Kovach, L Scott Levin
Background Free vascularized fibular flaps (FVFFs) are accepted surgical options to treat osteonecrosis of the femoral head and neck (ONFHN) to prevent conversion to total hip replacement (THR), yet many studies are single institution cohorts, with little generalizability. Purpose The purpose of this study was to perform a systematic review examining the comparative effectiveness of FVFF to treat ONFHN, particularly preventing conversion to a THR and improving hip function/symptoms. Methods We searched PubMed and EMBASE databases using femoral head, free fibula, and femoral neck keywords...
January 16, 2017: Journal of Reconstructive Microsurgery
https://www.readbyqxmd.com/read/28092264/centriolar-sas-7-acts-upstream-of-spd-2-to-regulate-centriole-assembly-and-pericentriolar-material-formation
#2
Kenji Sugioka, Danielle R Hamill, Joshua B Lowry, Marie E McNeely, Molly Enrick, Alyssa C Richter, Lauren E Kiebler, James R Priess, Bruce Bowerman
The centriole/basal body is a eukaryotic organelle that plays essential roles in cell division and signaling. Among five known core centriole proteins, SPD-2/Cep192 is the first recruited to the site of daughter centriole formation and regulates the centriolar localization of the other components in C. elegans and in humans. However, the molecular basis for SPD-2 centriolar localization remains unknown. Here we describe a new centriole component, the coiled-coil protein SAS-7, as a regulator of centriole duplication, assembly and elongation...
January 16, 2017: ELife
https://www.readbyqxmd.com/read/28092263/transcription-leads-to-pervasive-replisome-instability-in-bacteria
#3
Sarah Mangiameli, Christopher N Merrikh, Paul A Wiggins, Houra Merrikh
The canonical model of DNA replication describes a highly-processive and largely continuous process by which the genome is duplicated. This continuous model is based upon in vitro reconstitution and in vivo ensemble experiments. Here, we characterize the replisome-complex stoichiometry and dynamics with single-molecule resolution in bacterial cells. Strikingly, the stoichiometries of the replicative helicase, DNA polymerase, and clamp loader complexes are consistent with the presence of only one active replisome in a significant fraction of cells (>40%)...
January 16, 2017: ELife
https://www.readbyqxmd.com/read/28092027/classification-and-lineage-tracing-of-sh2-domains-throughout-eukaryotes
#4
Bernard A Liu
Today there exists a rapidly expanding number of sequenced genomes. Cataloging protein interaction domains such as the Src Homology 2 (SH2) domain across these various genomes can be accomplished with ease due to existing algorithms and predictions models. An evolutionary analysis of SH2 domains provides a step towards understanding how SH2 proteins integrated with existing signaling networks to position phosphotyrosine signaling as a crucial driver of robust cellular communication networks in metazoans. However organizing and tracing SH2 domain across organisms and understanding their evolutionary trajectory remains a challenge...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28091618/chemical-isotope-labeling-lc-ms-for-monitoring-disease-progression-and-treatment-in-animal-models-plasma-metabolomics-study-of-osteoarthritis-rat-model
#5
Deying Chen, Xiaoling Su, Nan Wang, Yunong Li, Hua Yin, Liang Li, Lanjuan Li
We report a chemical isotope labeling (CIL) liquid chromatography mass spectrometry (LC-MS) method generally applicable for tracking metabolomic changes from samples collected in an animal model for studying disease development and treatment. A rat model of surgically induced osteoarthritis (OA) was used as an example to illustrate the workflow and technical performance. Experimental duplicate analyses of 234 plasma samples were carried out using dansylation labeling LC-MS targeting the amine/phenol submetabolome...
January 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28090731/addition-of-ezetimibe-to-statins-for-patients-at-high-cardiovascular-risk-systematic-review-of-patient-important-outcomes
#6
REVIEW
Yutong Fei, Gordon Henry Guyatt, Paul Elias Alexander, Regina El Dib, Reed A C Siemieniuk, Per Olav Vandvik, Mark E Nunnally, Huda Gomaa, Rebecca L Morgan, Arnav Agarwal, Ying Zhang, Neera Bhatnagar, Frederick A Spencer
Ezetimibe is widely used in combination with statins to reduce low-density lipoprotein. We sought to examine the impact of ezetimibe when added to statins on patient-important outcomes. Medline, EMBASE, CINAHL, and CENTRAL were searched through July, 2016. Randomized controlled trials (RCTs) of ezetimibe combined with statins versus statins alone that followed patients for at least 6 months and reported on at least one of all-cause mortality, cardiovascular deaths, non-fatal myocardial infarctions (MI), and non-fatal strokes were included...
January 16, 2017: Journal of Evaluation in Clinical Practice
https://www.readbyqxmd.com/read/28089817/patient-centered-specialty-practice-defining-the-role-of-specialists-in-value-based-healthcare
#7
REVIEW
Lawrence Ward, Rhea E Powell, Michael L Scharf, Andrew Chapman, Mani Kavuru
Healthcare is at a crossroads, under pressure to add value by improving patient experience and health outcomes and reducing costs to the system. Efforts to improve the care model in primary care, such as the patient-centered medical home, have enjoyed some success. Yet primary care accounts for only a small portion of total healthcare spending, and there is a need for policies and frameworks to support high quality, cost-efficient care in specialty practices of the "medical neighborhood". The Patient-Centered Specialty Practice (PCSP) model offers ambulatory-based specialty practices one such framework, supported by a formal recognition program through the National Committee for Quality Assurance...
January 13, 2017: Chest
https://www.readbyqxmd.com/read/28089788/cardiovascular-disease-risk-assessment-in-australian-community-pharmacy
#8
Kevin P Mc Namara, Gregory M Peterson, Josie Hughes, Ines Krass, Vincent Versace, Robyn A Clark, James Dunbar
BACKGROUND: Population screening and monitoring of cardiovascular risk is suboptimal in Australian primary care. The role of community pharmacy has increased considerably, but without any policy framework for development. The aim of this study was to explore the nature of community pharmacy-based screening models in Australia, capacity to increase delivery of pharmacy screening, and barriers and enablers to increasing capacity. METHODS: An online survey weblink was emailed to pharmacy managers at every quality-accredited pharmacy in Australia by the Quality Pharmacy Care Program...
November 30, 2016: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/28089746/congenital-entropion-and-hypotropia-secondary-to-duplication-of-the-inferior-rectus-muscle
#9
Tarek A Shazly, S Tonya Stefko
No abstract text is available yet for this article.
January 9, 2017: Journal of AAPOS: the Official Publication of the American Association for Pediatric Ophthalmology and Strabismus
https://www.readbyqxmd.com/read/28089047/cypome-of-the-conifer-pathogen-heterobasidion-irregulare-inventory-phylogeny-and-transcriptional-analysis-of-the-response-to-biocontrol
#10
Anthony C Mgbeahuruike, Andriy Kovalchuk, Wimal Ubhayasekera, David R Nelson, Jagjit S Yadav
The molecular mechanisms underlying the interaction of the pathogen, Heterobasidion annosum s.l., the conifer tree and the biocontrol fungus, Phlebiopsis gigantea have not been fully elucidated. Members of the cytochrome P450 (CYP) protein family may contribute to the detoxification of components of chemical defence of conifer trees by H. annosum during infection. Additionally, they may also be involved in the interaction between H. annosum and P. gigantea. A genome-wide analysis of CYPs in Heterobasidion irregulare was carried out alongside gene expression studies...
February 2017: Fungal Biology
https://www.readbyqxmd.com/read/28088961/-the-clinical-and-prognostic-significance-of-acute-myeloid-leukemia-with-flt3-itd
#11
D Lin, H Wei, Y Wang, C L Zhou, B C Liu, K Q Liu, B F Gong, S N Wei, G J Zhang, Y T Liu, X Y Gong, S W Qiu, Y C Mi, J X Wang
Objective: To investigate the clinical significance and prognosis factors of acute myeloid leukemia (AML) with FLT3 mutation-internal tandem duplication (FLT3-ITD) and provide more evidence for prognosis evaluation in AML with FLT3-ITD. Methods: The clinical characteristics and outcomes of 98 AML with FLT3-ITD were analyzed. Results: In patients with FLT3-ITD positive AML, the median of WBC and peripheral blood blast at initial diagnosis were 58.2 (0.3-461.8) ×10(9)/L and 42.2 (0-397.1) ×10(9)/L, respectively...
December 14, 2016: Zhonghua Xue Ye Xue za Zhi, Zhonghua Xueyexue Zazhi
https://www.readbyqxmd.com/read/28088916/an-increasing-threat-in-an-iranian-referral-children-s-hospital-multidrug-resistant-acinetobacter-baumannii
#12
Setareh Mamishi, Reza Habibi, Babak Pourakbari, Shima Mahmoudi, Mohammad Taghi Haghi Ashtiani, Reihaneh Hosseinpour Sadeghi, Mahmoud Khodabandeh
INTRODUCTION: Acinetobacter baumannii has emerged as an important nosocomial pathogen in the past decades. Due to the prevalence of A. baumannii across the world, suitable typing methods to investigate the epidemiological distribution of the organism have been developed. The aim of this study was to investigate the epidemiological and molecular diversity of A. baumannii strains isolated from nosocomial infections of hospitalized children in Children Medical Center Hospital (CMC), an Iranian referral hospital, in Tehran, Iran...
January 13, 2017: Infectious Disorders Drug Targets
https://www.readbyqxmd.com/read/28088527/navigation-in-the-electronic-health-record-a-review-of-the-safety-and-usability-literature
#13
REVIEW
Lisette C Roman, Jessica S Ancker, Stephen B Johnson, Yalini Senathirajah
OBJECTIVE: Inefficient navigation in electronic health records has been shown to increase users' cognitive load, which may increase potential for errors, reduce efficiency, and increase fatigue. However, navigation has received insufficient recognition and attention in the electronic health record (EHR) literature as an independent construct and contributor to overall usability. Our aims in this literature review were to (1) assess the prevalence of navigation-related topics within the EHR usability and safety research literature, (2) categorize types of navigation actions within the EHR, (3) capture relationships between these navigation actions and usability principles, and (4) collect terms and concepts related to EHR navigation...
January 11, 2017: Journal of Biomedical Informatics
https://www.readbyqxmd.com/read/28088307/in-office-fabrication-of-a-definitive-cast-and-duplication-of-an-interim-implant-supported-fixed-acrylic-resin-complete-denture
#14
Lambert J Stumpel
The information contained in an interim implant-supported fixed acrylic resin complete denture is a starting point for fabricating the definitive restoration. Duplicating this information in an expedient, precise, and sanitary fashion is desirable so that the interim restoration can be returned to the waiting patient. A technique is described to fabricate an accurate definitive polyvinyl siloxane cast with laboratory analogs bonded to a prepolymerized, dimensionally stable, composite resin baseplate. A screw-retained polyvinyl siloxane duplication of the interim denture is related to this cast...
January 11, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28088038/evidence-of-functional-duplicity-of-nestin-expression-in-the-adult-mouse-midbrain
#15
Parisa Farzanehfar, Shi Sheng Lu, Anupa Dey, Dharshani Musiienko, Hamzah Baagil, Malcolm K Horne, Tim D Aumann
Whether or not neurogenesis occurs in the adult substantia nigra pars compacta (SNc) is an important question relevant for developing better treatments for the motor symptoms of Parkinson's disease (PD). Although controversial, it is generally believed that dividing cells here remain undifferentiated or differentiate into glia, not neurons. However, there is a suggestion that Nestin-expressing neural precursor cells (NPCs) in the adult SNc have a propensity to differentiate into neurons, which we sought to confirm in the present study...
January 5, 2017: Stem Cell Research
https://www.readbyqxmd.com/read/28087982/the-impact-of-ces1-genotypes-on-the-pharmacokinetics-of-methylphenidate-in-healthy-danish-subjects
#16
Claus Stage, Gesche Jürgens, Louise Schow Guski, Ragnar Thomsen, Ditte Bjerre, Laura Ferrero-Miliani, Yassine Kamal Lyauk, Henrik Berg Rasmussen, Kim Dalhoff
AIM: This study investigated the influence of CES1 variations, including the SNP rs71647871 (G143E) and variation in copy number, on the pharmacokinetics of a single oral dose of 10 mg methylphenidate. METHODS: CES1 genotype was obtained from 200 healthy Danish Caucasian volunteers. Based on the genotype, 44 (19 males and 25 females) were invited to participate in an open, prospective trial involving six predefined genotypes: three groups with two, three, and four CES1 copies, respectively; a group of carriers of the CES1 143E allele; a group of individuals homozygous for CES1A1c (CES1VAR); and a group having three CES1 copies, in which the duplication, CES1A2, had increased transcriptional activity...
January 14, 2017: British Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28087968/thymic-carcinoma-presenting-with-an-unusual-and-delayed-metastasis-to-the-neural-foramen-mimicking-thoracic-spinal-radiculopathy
#17
H M Low, C F Wong, M W H'ng
We report a case of metastatic thymic carcinoma which presented as an enhancing mass located in the neural foramen of the thoracic spine. More common tumours which arise in the neural foramen would include a neurogenic tumour or developmental anomalies such as a foregut duplication cyst. This case is singular firstly because the lesion present as radiculopathy which mimics a neurogenic tumour. Secondly, the presentation was unusually delayed as the patient presented to our centre more than a decade after the resection of the primary tumour in another institution...
December 2016: Medical Journal of Malaysia
https://www.readbyqxmd.com/read/28087934/fungal-cell-cycle-a-unicellular-versus-multicellular-comparison
#18
Ilkay Dörter, Michelle Momany
All cells must accurately replicate DNA and partition it to daughter cells. The basic cell cycle machinery is highly conserved among eukaryotes. Most of the mechanisms that control the cell cycle were worked out in fungal cells, taking advantage of their powerful genetics and rapid duplication times. Here we describe the cell cycles of the unicellular budding yeast Saccharomyces cerevisiae and the multicellular filamentous fungus Aspergillus nidulans. We compare and contrast morphological landmarks of G1, S, G2, and M phases, molecular mechanisms that drive cell cycle progression, and checkpoints in these model unicellular and multicellular fungal systems...
December 2016: Microbiology Spectrum
https://www.readbyqxmd.com/read/28087841/single-cell-transcriptome-analysis-of-fish-immune-cells-provides-insight-into-the-evolution-of-vertebrate-immune-cell-types
#19
Santiago J Carmona, Sarah A Teichmann, Lauren Ferreira, Iain C Macaulay, Michael J T Stubbington, Ana Cvejic, David Gfeller
The immune system of vertebrate species consists of many different cell types that have distinct functional roles and are subject to different evolutionary pressures. Here, we first analysed conservation of genes specific for all major immune cell types in human and mouse. Our results revealed higher gene turnover and faster evolution of trans-membrane proteins in NK cells compared to other immune cell types, and especially T cells, but similar conservation of nuclear and cytoplasmic protein coding genes. To validate these findings in a distant vertebrate species, we used single-cell RNA-Sequencing of lck:GFP cells in zebrafish and obtained the first transcriptome of specific immune cell types in a non-mammalian species...
January 13, 2017: Genome Research
https://www.readbyqxmd.com/read/28087776/seed-plant-specific-gene-lineages-involved-in-carpel-development
#20
Kai C Pfannebecker, Matthias Lange, Oliver Rupp, Annette Becker
Evolutionary innovations are important drivers of speciation and some are the defining characters of entire phyla. One such major innovation is the carpel, the unifying character and most complex plant organ, composed of many clearly distinct tissue types to ensure reproductive success. The origin of the carpel is unknown, but many components of the gene regulatory network (GRN) governing carpel development and their genetic interactions are known from the core eudicot Arabidopsis thaliana To unravel the evolution of the carpel GRN and to discriminate between "early" and "late" steps in carpel evolution we calculated thorough phylogeny reconstructions based on sequenced genomes...
January 12, 2017: Molecular Biology and Evolution
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