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https://www.readbyqxmd.com/read/27933720/autogenous-bone-grafting-for-treatment-of-osseous-defect-after-impacted-mandibular-third-molar-extraction-a-randomized-controlled-trial
#1
Jing Ge, Chi Yang, Jiawei Zheng, Yingkai Hu
BACKGROUND: Extraction of impacted mandibular third molar (M3) has been cited as causing osseous defect at the distal aspect of the adjacent second molar (M2). PURPOSE: This randomized controlled trial was aimed to evaluate the effect of autogenous bone grafting in situ for regeneration of periodontal osseous defect distal to the M2 compared with non-grafting after impacted M3 removal. MATERIALS AND METHODS: A total of 60 sites in 51 adult patients were enrolled and randomly assigned to the control group or the test group...
December 8, 2016: Clinical Implant Dentistry and related Research
https://www.readbyqxmd.com/read/27933714/development-of-chemical-tools-to-monitor-and-control-isoaspartyl-peptide-methyltransferase-activity
#2
Yusuke Kimura, Toru Komatsu, Kouichi Yanagi, Kenjiro Hanaoka, Tasuku Ueno, Takuya Terai, Hirotatsu Kojima, Takayoshi Okabe, Tetsuo Nagano, Yasuteru Urano
We have established a coupled assay system targeting protein l-isoaspartyl methyltransferase (PIMT), a key enzyme in the metabolism of isoaspartyl peptides and proteins. The system utilizes a fluorogenic peptide probe containing an isoaspartyl residue at the P1' position of the caspase-3 recognition sequence. Following PIMT-catalyzed methyl transfer reaction, the methylated probe is specifically cleaved by caspase-3 to give fluorescence activation. High-throughput screening of our chemical library with this assay system identified PIMT inhibitors that may be useful as leads in the design of chemical probes for controlling PIMT activity...
December 9, 2016: Angewandte Chemie
https://www.readbyqxmd.com/read/27933691/single-fusion-events-at-polarized-liquid-liquid-interfaces
#3
Eduardo Laborda, Angela Molina, Vanesa Fernández Espín, Francisco Martínez-Ortiz, José García de la Torre, Richard G Compton
A new electrochemical framework for tracking individual soft particles in solution and monitoring their fusion with polarized liquid-liquid interfaces is reported. The physicochemical principle lies in the interfacial transfer of an ionic probe confined in the particles dispersed in solution and that is released upon their collision and fusion with the fluid interface. As a proof-of-concept, spike-like transients of a stochastic nature are reported in the current-time response of 1,2-dichloroethane(DCE)|water(W) submilli-interfaces after injection of DCE-in-W emulsions...
December 9, 2016: Angewandte Chemie
https://www.readbyqxmd.com/read/27933661/mutations-in-the-neb-gene-cause-fetal-akinesia-arthrogryposis-multiplex-congenita
#4
Michal Feingold-Zadok, David Chitayat, Karen Chong, Marie Injeyan, Patrick Shannon, Daphne Chapmann, Ron Maymon, Nir Pillar, Orit Reish
OBJECTIVE: We studied a series of patients with fetal akinesia deformation sequence (FADS)/arthrogryposis multiplex congenita (AMC), with nemaline bodies on muscle specimens, that revealed mutations in the NEB gene. METHOD: We pathologically assessed seven cases from three families, who presented with AMC/FADS. Targeted genetic analysis for Ashkenazi Jewish (AJ) mutation (in relevant patients) was followed by next generation sequencing and Multiplex Ligation-dependent Probe Amplification...
December 9, 2016: Prenatal Diagnosis
https://www.readbyqxmd.com/read/27933649/using-chiral-peptide-substitutions-to-probe-the-structure-function-relationship-of-a-key-residue-of-a%C3%AE-42
#5
Christopher J A Warner, Subrata Dutta, Alejandro R Foley, Eefei Chen, David S Kliger, Jevgenij A Raskatov
Amyloid beta-protein 42 plays an important role in the onset and progression of Alzheimer's disease. Familial mutations have identified the glutamate residue 22 as a hotspot with regard to peptide neurotoxicity. We introduce an approach to study the influence of systematic sidechain modification at this residue, employing chirality as a structural probe. Circular dichroism experiments reveal that charge-preserving alterations of the amino acid sidechain attenuate the characteristic random coil to β-sheet transition associated with the wildtype peptide...
December 8, 2016: Chirality
https://www.readbyqxmd.com/read/27933460/assessing-colorectal-cancer-screening-barriers-by-two-methods
#6
Mira L Katz, Gregory S Young, Barret J Zimmermann, Cathy M Tatum, Electra D Paskett
Colorectal cancer (CRC) is commonly diagnosed in the USA despite screening tests that have decreased CRC incidence and mortality. Finding the best method to identify patient-level screening barriers is important to improve CRC screening rates. A group-randomized trial was conducted among ten primary-care clinics. Clinics were randomized to a multi-level (clinic, provider, patient) CRC screening intervention or usual care (2007-2013). Subsequent to clinic- and provider-level interventions, a three-step, patient-level intervention was conducted...
December 8, 2016: Journal of Cancer Education: the Official Journal of the American Association for Cancer Education
https://www.readbyqxmd.com/read/27933445/correlation-of-crevicular-fluid-and-serum-levels-of-retinol-binding-protein-4-and-leptin-in-chronic-periodontitis-and-obesity
#7
Dharmendra Kanoriya, A R Pradeep, A Mallika, Sandeep Singhal, Vibhuti Garg
OBJECTIVE: Retinol-binding protein 4 (RBP4) and leptin are both adipokines and involved in the pathophysiology of different vascular and inflammatory diseases and selectively elevated in patients with obesity. The aim of the present study was to determine and correlate the levels of RBP4 and leptin in gingival crevicular fluid (GCF) and serum in patients with chronic periodontitis (CP) and obesity. MATERIALS AND METHODS: A total of 70 patients with age group 25 to 45 years were divided into four groups based on gingival index (GI), probing depth (PD), clinical attachment level (CAL), body mass index (BMI) and radiographic evidence of bone loss...
December 8, 2016: Clinical Oral Investigations
https://www.readbyqxmd.com/read/27933426/characterization-of-the-first-fully-human-anti-tem1-scfv-in-models-of-solid-tumor-imaging-and-immunotoxin-based-therapy
#8
Xiaopeng Yuan, Mingjuan Yang, Xiang Chen, Xuhua Zhang, Shrey Sukhadia, Najia Musolino, Huijing Bao, Tingtao Chen, Chen Xu, Qirui Wang, Stephen Santoro, Daniel Ricklin, Jia Hu, Ruihe Lin, Wei Yang, Zhijun Li, Weijun Qin, Aizhi Zhao
Tumor endothelial marker 1 (TEM1) has been identified as a novel surface marker upregulated on the blood vessels and stroma in many solid tumors. We previously isolated a novel single-chain variable fragment (scFv) 78 against TEM1 from a yeast display scFv library. Here, we evaluated the potential applications of scFv78 as a tool for tumor molecular imaging, immunotoxin-based therapy and nanotherapy. Epitope mapping, three-dimensional structure docking and affinity measurements indicated that scFv78 could bind to both human and murine TEM1, with equivalent affinity, at a well-conserved conformational epitope...
December 8, 2016: Cancer Immunology, Immunotherapy: CII
https://www.readbyqxmd.com/read/27933341/intragenic-variations-in-btla-gene-influence-mrna-expression-of-btla-gene-in-chronic-lymphocytic-leukemia-patients-and-confer-susceptibility-to-chronic-lymphocytic-leukemia
#9
Lidia Karabon, Anna Partyka, Monika Jasek, Ewa Lech-Maranda, Olga Grzybowska-Izydorczyk, Agnieszka Bojarska-Junak, Edyta Pawlak-Adamska, Anna Tomkiewicz, Tadeusz Robak, Jacek Rolinski, Irena Frydecka
The aim of this study was to determine the association between polymorphisms in gene encoding B- and T-lymphocyte attenuator (BTLA) and susceptibility to chronic lymphocytic leukemia (CLL) and their influence on mRNA expression of BTLA gene in T and B cells from CLL patients (pts.). The following BTLA single-nucleotide polymorphisms (SNPs): rs2705511, rs1982809, rs9288952, rs76844316, rs16859633, rs9288953, rs2705535, rs1844089, rs2705565, rs2633580 were genotyped with use of TaqMan probes in 321 CLL pts. and in 470 controls...
December 8, 2016: Archivum Immunologiae et Therapiae Experimentalis
https://www.readbyqxmd.com/read/27932952/evaluating-tools-for-live-imaging-of-structural-plasticity-at-the-axon-initial-segment
#10
Adna S Dumitrescu, Mark D Evans, Matthew S Grubb
The axon initial segment (AIS) is a specialized neuronal compartment involved in the maintenance of axo-dendritic polarity and in the generation of action potentials. It is also a site of significant structural plasticity-manipulations of neuronal activity in vitro and in vivo can produce changes in AIS position and/or size that are associated with alterations in intrinsic excitability. However, to date all activity-dependent AIS changes have been observed in experiments carried out on fixed samples, offering only a snapshot, population-wide view of this form of plasticity...
2016: Frontiers in Cellular Neuroscience
https://www.readbyqxmd.com/read/27932875/screening-of-long-non-coding-rna-and-tug1-inhibits-proliferation-with-tgf-%C3%AE-induction-in-patients-with-copd
#11
Wenxiang Tang, Zhenyu Shen, Jiang Guo, Shenghua Sun
OBJECTIVE: To evaluate differentially expressed long noncoding RNAs (lncRNAs) and the potential role of lncRNA TUG1 in patients with chronic obstructive pulmonary disease (COPD). METHODS: Total RNA was extracted from both COPD and non-COPD lung tissues, and microarray analysis was performed with 25,628 lncRNA probes and 20,106 mRNA probes. In addition, five up-regulated and five down-regulated lncRNAs were selected for identification using quantitative real-time polymerase chain reaction...
2016: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/27932844/what-factors-influence-patient-compliance-with-supportive-periodontal-therapy-in-a-general-practice-setting
#12
C Perrell-Jones, R S Ireland
Background The importance of supportive periodontal therapy following active treatment has been well documented but numerous studies have shown patient compliance to be poor. The aim of this study was to ascertain which factors affect patient compliance and whether this included routinely recorded periodontal indices.Methodology This was a five-year retrospective service evaluation study set within a private general dental practice. It utilised demographic and periodontal data from patients who attended the practice for chronic periodontal treatment in 2009 and ascertained whether there were links between this data and compliance with the supportive phase of periodontal treatment...
December 9, 2016: British Dental Journal
https://www.readbyqxmd.com/read/27932811/a-pilot-study-of-the-gingival-response-when-smokers-switch-from-smoking-to-vaping
#13
R Wadia, V Booth, H F Yap, D L Moyes
Introduction Tobacco smoking is one of the most important risk factors for periodontitis as it alters the host response to plaque. Although the prevalence of tobacco smoking has declined in recent years, the use of electronic-cigarettes (vaping) has increased. The effect of vaping on the gingiva is unknown and an evidence-base needs to be established before providing dental advice about the use of these products.Objective To compare the gingival health of a group of established smokers before and after substituting vaping for smoking tobacco...
December 9, 2016: British Dental Journal
https://www.readbyqxmd.com/read/27932576/mammalian-synthetic-biology-for-studying-the-cell
#14
REVIEW
Melina Mathur, Joy S Xiang, Christina D Smolke
Synthetic biology is advancing the design of genetic devices that enable the study of cellular and molecular biology in mammalian cells. These genetic devices use diverse regulatory mechanisms to both examine cellular processes and achieve precise and dynamic control of cellular phenotype. Synthetic biology tools provide novel functionality to complement the examination of natural cell systems, including engineered molecules with specific activities and model systems that mimic complex regulatory processes...
December 8, 2016: Journal of Cell Biology
https://www.readbyqxmd.com/read/27932562/intraoperative-assessment-of-tumor-resection-margins-in-breast-conserving-surgery-using-18f-fdg-cerenkov-luminescence-imaging-a-first-in-human-feasibility-study
#15
Maarten Ruben Grootendorst, Massimiliano Cariati, Sarah Pinder, Ashutosh Kothari, Michael Douek, Tibor Kovacs, Hisham Hamed, Amit Pawa, Fiona Nimmo, Julie Owen, Vernie Ramalingam, Sweta Sethi, Sanjay Mistry, Kunal Vyas, David Tuch, Alan Britten, Mieke Van Hemelrijck, Gary Cook, Chris Sibley-Allen, Sarah Allen, Arnie Purushotham
RATIONALE: In early-stage breast cancer, the primary treatment option for the majority of women is breast-conserving surgery (BCS). There is a clear need for more accurate techniques to assess resection margins intraoperatively, as on average 20% of patients require further surgery to achieve clear margins. Cerenkov luminescence imaging (CLI) combines optical and molecular imaging by detecting light emitted by (18)F-fluorodeoxyglucose ((18)F-FDG). Its high-resolution and small size imaging equipment makes CLI a promising technology for intraoperative margin assessment...
December 8, 2016: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/27932552/microfluidic-analysis-of-oocyte-and-embryo-biomechanical-properties-to-improve-outcomes-in-assisted-reproductive-technologies
#16
REVIEW
Livia Z Yanez, David B Camarillo
Measurement of oocyte and embryo biomechanical properties has recently emerged as an exciting new approach to obtain a quantitative, objective estimate of developmental potential. However, many traditional methods for probing cell mechanical properties are time consuming, labor intensive and require expensive equipment. Microfluidic technology is currently making its way into many aspects of assisted reproductive technologies (ART), and is particularly well suited to measure embryo biomechanics due to the potential for robust, automated single-cell analysis at a low cost...
December 8, 2016: Molecular Human Reproduction
https://www.readbyqxmd.com/read/27932461/structural-characterization-and-ligand-inhibitor-identification-provide-functional-insights-into-the-mycobacterium-tuberculosis-cytochrome-p450-cyp126a1
#17
Jude T Chenge, Duyet Van Le, Shalini Swami, Kirsty J McLean, Madeline E Kavanagh, Anthony G Coyne, Stephen E J Rigby, Myles R Cheesman, Hazel M Girvan, Colin W Levy, Bernd Rupp, Jens P von Kries, Chris Abell, David Leys, Andrew W Munro
The Mycobacterium tuberculosis (Mtb) H37Rv genome encodes 20 cytochromes P450, including P450s crucial to infection and bacterial viability. Many Mtb P450s remain uncharacterized, suggesting their further analysis may provide new insights into Mtb metabolic processes and new targets for drug discovery. CYP126A1 is representative of a P450 family widely distributed in mycobacteria and other bacteria. Here we explore the biochemical and structural properties of CYP126A1, including its interactions with new chemical ligands...
December 8, 2016: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/27932441/trophoblast-cells-inhibit-neutrophil-extracellular-trap-formation-and-enhance-apoptosis-through-vasoactive-intestinal-peptide-mediated-pathways
#18
Guillermina Calo, Florencia Sabbione, Daiana Vota, Daniel Paparini, Rosanna Ramhorst, Analía Trevani, Claudia Pérez Leirós
STUDY QUESTION: Do human trophoblast cells modulate neutrophil extracellular trap (NET) formation, reactive oxygen species (ROS) synthesis and neutrophil apoptosis through mechanisms involving vasoactive intestinal peptide (VIP)? SUMMARY ANSWER: Trophoblast cells inhibited NET formation and ROS synthesis and enhanced neutrophil apoptosis through VIP-mediated pathways in a model of maternal-placental interaction. WHAT IS KNOWN ALREADY: Immune homeostasis maintenance at the maternal-placental interface is mostly coordinated by trophoblast cells...
December 7, 2016: Human Reproduction
https://www.readbyqxmd.com/read/27932423/integrated-genomic-analysis-of-survival-outliers-in-glioblastoma
#19
Sen Peng, Harshil Dhurv, Brock Armstrong, Bodour Salhia, Christophe Legendre, Jeffrey Kiefer, Julianna Parks, Selene Virk, Andrew E Sloan, Quinn T Ostrom, Jill S Barnholtz-Sloan, Nhan L Tran, Michael E Berens
BACKGROUND: To elucidate molecular features associated with disproportionate survival of glioblastoma (GB) patients, we conducted deep genomic comparative analysis of a cohort of patients receiving standard therapy (surgery plus concurrent radiation and temozolomide); "GB outliers" were identified: long-term survivor of 33 months (LTS; n = 8) versus short-term survivor of 7 months (STS; n = 10). METHODS: We implemented exome, RNA, whole genome sequencing, and DNA methylation for collection of deep genomic data from STS and LTS GB patients...
December 8, 2016: Neuro-oncology
https://www.readbyqxmd.com/read/27932084/a-novel-method-for-the-rapid-detection-of-microbes-in-blood-using-pleurocidin-antimicrobial-peptide-functionalized-piezoelectric-sensor
#20
Xiaohong Shi, Xiaoqing Zhang, Qiongqiong Yao, Fengjiao He
The rapid detection of microbes is critical in clinical diagnosis and food safety. Culture-dependent assays are the most widely used microbial detection methods, but these assays are time-consuming. In this study, a rapid microbial detection method was proposed using a pleurocidin/single-walled carbon nanotubes/interdigital electrode-multichannel series piezoelectric quartz crystal (pleurocidin/SWCNT/IDE-MSPQC) sensor. The selected pleurocidin antimicrobial peptide served as a recognition probe that exhibits broad-spectrum antimicrobial activity and the SWCNT acted as the electronic transducer and cross-linker for the immobilization of pleurocidin on the IDE...
December 5, 2016: Journal of Microbiological Methods
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