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https://www.readbyqxmd.com/read/28212692/oxygen-desaturation-index-differs-significantly-between-types-of-sleep-software
#1
Yvonne Ng, Simon A Joosten, Bradley A Edwards, Anthony Turton, Helen Romios, Thilini Samarasinghe, Shane Landry, Darren R Mansfield, Garun S Hamilton
STUDY OBJECTIVES: The aim of this study was to compare the oxygen desaturation index (ODI) generated by two different sleep software systems. METHODS: Participants undergoing diagnostic polysomnography for suspected obstructive sleep apnea underwent simultaneous oximetry recording using the ResMedApneaLink Plus device (AL) and Compumedics Profusion PSG3 system (Comp). The ODI was calculated by the algorithms in the respective software of each system. To determine if differences were due to algorithm or recording devices, the Comp software was also used to generate ODI values using oximetry data from the AL...
February 15, 2017: Journal of Clinical Sleep Medicine: JCSM: Official Publication of the American Academy of Sleep Medicine
https://www.readbyqxmd.com/read/28208081/molecular-synergy-in-biolubrication-the-role-of-cartilage-oligomeric-matrix-protein-comp-in-surface-structuring-of-lubricin
#2
Akanksha Raj, Min Wang, Chao Liu, Liaquat Ali, Niclas G Karlsson, Per M Claesson, Andra Dėdinaitė
HYPOTHESIS: Synovial surfaces are lubricated by biomolecular aggregates that act in synergy, and lubricin is one key biolubricant. Its molecular structure allows extensive hydration and this is conducive to its lubrication performance. However, in order to fullfil its lubrication function it needs to be anchored and oriented on the surface in a proper way. We suggest that cartilage oligomeric matrix protein (COMP) is one of the biomolecules that promotes anchoring of lubricin in a fashion that facilitates lubrication...
February 8, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28206685/claustrum-of-the-short-tailed-fruit-bat-carollia-perspicillata-alignment-of-cellular-orientation-and-functional-connectivity
#3
Rena Orman, Richard Kollmar, Mark Stewart
The claustrum is a gray-matter structure that underlies neocortex and reciprocates connections with cortical and subcortical targets. In lower mammals, the claustrum is directly adjacent to neocortex, making the definition of claustral boundaries challenging. Latexin, an endogenous inhibitor of metallocarboxypeptidases, localizes to claustral cells, enabling a clear delineation of claustrum. Given its proportionately large claustrum, we hypothesized that the short-tailed fruit bat, Carollia perspicillata, can be a useful model for claustral structure-function relations...
April 15, 2017: Journal of Comparative Neurology
https://www.readbyqxmd.com/read/28194462/designing-an-efficient-multi-epitope-oral-vaccine-against-helicobacter-pylori-using-immunoinformatics-and-structural-vaccinology-approaches
#4
Navid Nezafat, Mahboobeh Eslami, Manica Negahdaripour, Mohammad Reza Rahbar, Younes Ghasemi
Helicobacter pylori is the cunning bacterium that can live in the stomachs of many people without any symptoms, but gradually can lead to gastric cancer. Due to various obstacles, which are related to anti-H. pylori antibiotic therapy, recently developing an anti-H. pylori vaccine has attracted more attention. In this study, different immunoinformatics and computational vaccinology approaches were employed to design an efficient multi-epitope oral vaccine against H. pylori. Our multi-epitope vaccine is composed of heat labile enterotoxin IIc B (LT-IIc) that is used as a mucosal adjuvant to enhance vaccine immunogenicity for oral immunization, cartilage oligomeric matrix protein (COMP) to increase vaccine stability in acidic pH of gut, one experimentally protective antigen, OipA, and two hypothetical protective antigens, HP0487 and HP0906, and "CTGKSC" peptide motif that target epithelial microfold cells (M cells) to enhance vaccine uptake from the gut barrier...
February 14, 2017: Molecular BioSystems
https://www.readbyqxmd.com/read/28191465/pedf-is-associated-with-the-termination-of-chondrocyte-phenotype-and-catabolism-of-cartilage-tissue
#5
P Klinger, S Lukassen, F Ferrazzi, A B Ekici, T Hotfiel, B Swoboda, T Aigner, K Gelse
Objective. To investigate the expression and target genes of pigment epithelium-derived factor (PEDF) in cartilage and chondrocytes, respectively. Methods. We analyzed the expression pattern of PEDF in different human cartilaginous tissues including articular cartilage, osteophytic cartilage, and fetal epiphyseal and growth plate cartilage, by immunohistochemistry and quantitative real-time (qRT) PCR. Transcriptome analysis after stimulation of human articular chondrocytes with rhPEDF was performed by RNA sequencing (RNA-Seq) and confirmed by qRT-PCR...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28185761/image-guided-adaptive-brachytherapy-dose-escalation-for-cervix-cancer-via-fractionation-compensation
#6
William Shaw, William I D Rae, Markus L Alber
PURPOSE: In image-guided adaptive brachytherapy (IGABT), dose distributions are optimized for each fraction. Optimum fractional dose can be constant or adapted to previous fractions and a conjecture about the future ones. We evaluate the efficacy of different fraction size schemes, derived from total IGABT dose constraints, against constant per-fraction constraints. METHODS AND MATERIALS: This retrospective planning study included 20 IGABT patients where four different fractionation schedules were compared based on modern planning recommendations...
February 6, 2017: Brachytherapy
https://www.readbyqxmd.com/read/28162960/antisense-reduction-of-mutant-comp-reduces-growth-plate-chondrocyte-pathology
#7
Karen L Posey, Francoise Coustry, Alka C Veerisetty, Mohammad Hossain, Danielle Gattis, Sheri Booten, Joseph L Alcorn, Punit P Seth, Jacqueline T Hecht
Mutations in cartilage oligomeric matrix protein cause pseudoachondroplasia, a severe disproportionate short stature disorder. Mutant cartilage oligomeric matrix protein produces massive intracellular retention of cartilage oligomeric matrix protein, stimulating ER and oxidative stresses and inflammation, culminating in post-natal loss of growth plate chondrocytes, which compromises linear bone growth. Treatments for pseudoachondroplasia are limited because cartilage is relatively avascular and considered inaccessible...
February 3, 2017: Molecular Therapy: the Journal of the American Society of Gene Therapy
https://www.readbyqxmd.com/read/28162766/outcome-prediction-in-gastroschisis-the-gastroschisis-prognostic-score-gps-revisited
#8
Pramod S Puligandla, Robert Baird, Eric D Skarsgard, Sherif Emil, Jean-Martin Laberge
PURPOSE: The GPS enables risk stratification for gastroschisis and helps discriminate low from high morbidity groups. The purpose of this study was to revalidate GPS's characterization of a high morbidity group and to quantify relationships between the GPS and outcomes. METHODS: With REB approval, complete survivor data from a national gastroschisis registry was collected. GPS bowel injury scoring was revalidated excluding the initial inception/validation cohorts (>2011)...
January 27, 2017: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/28161180/clinical-outcome-comparison-of-immediate-blanket-treatment-versus-a-delayed-pathogen-based-treatment-protocol-for-clinical-mastitis-in-a-new-york-dairy-herd
#9
A K Vasquez, D V Nydam, M B Capel, S Eicker, P D Virkler
The purpose was to compare immediate intramammary antimicrobial treatment of all cases of clinical mastitis with a selective treatment protocol based on 24-h culture results. The study was conducted at a 3,500-cow commercial farm in New York. Using a randomized design, mild to moderate clinical mastitis cases were assigned to either the blanket therapy or pathogen-based therapy group. Cows in the blanket therapy group received immediate on-label intramammary treatment with ceftiofur hydrochloride for 5 d. Upon receipt of 24 h culture results, cows in the pathogen-based group followed a protocol automatically assigned via Dairy Comp 305 (Valley Agricultural Software, Tulare, CA): Staphylococcus spp...
February 1, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28155614/cartilage-oligomeric-matrix-protein-matricellular-and-matricrine-signaling-in-cardiovascular-homeostasis-and-disease
#10
Yi Fu, Wei Kong
Cardiovascular (CV) diseases remain a leading cause of morbidity and mortality in the world. Increasing the understanding of the pathogenesis of various CV diseases may provide novel therapeutic targets to improve their prevention and treatment. Cartilage oligomeric matrix protein (COMP), also known as thrombospondin-5 (TSP-5), is a matricellular protein that is abundantly expressed in both cartilage and the CV system. Our group and others have identified COMP as playing critical roles in maintaining CV homeostasis...
February 1, 2017: Current Vascular Pharmacology
https://www.readbyqxmd.com/read/28147215/attenuated-synovial-fluid-ghrelin-levels-are-linked-with-cartilage-damage-meniscus-injury-and-clinical-symptoms-in-patients-with-knee-anterior-cruciate-ligament-deficiency
#11
Yu-Cong Zou, Liang-Hua Chen, Yong-Liang Ye, Guang-Gang Yang, Zheng Mao, Dan-Dan Liu, Jun-Qi Chen, Jing-Jie Chen, Gang Liu
BACKGROUND: The meniscus injury and post-traumatic knee osteoarthritis (PTOA) following anterior cruciate ligament (ACL) lesions often cause great burdens to patients. Ghrelin, a recently identified 28-amino-acid peptide, has been shown to inhibit inflammation and perform as a growth factor for chondrocyte. OBJECTIVE: This study was aimed at investigating ghrelin concentration in synovial fluid and its association with the degree of meniscus injury, articular degeneration, and clinical severity in patients suffering from anterior cruciate ligament (ACL) deficiency...
December 2016: Discovery Medicine
https://www.readbyqxmd.com/read/28129782/cord-blood-cell-derived-ipscs-as-a-new-candidate-for-chondrogenic-differentiation-and-cartilage-regeneration
#12
Yoojun Nam, Yeri Alice Rim, Seung Min Jung, Ji Hyeon Ju
BACKGROUND: The native articular cartilage lacks the ability to heal. Currently, ex vivo expanded chondrocytes or bone marrow-derived mesenchymal stem cells are used to regenerate the damaged cartilage. With unlimited self-renewal ability and multipotency, human induced pluripotent stem cells (hiPSCs) have been highlighted as a new replacement cell source for cartilage repair. Still, further research is needed on cartilage regeneration using cord blood mononuclear cell-derived hiPSCs (CBMC-hiPSCs)...
January 28, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28127616/erratum-to-augmentation-of-diaphyseal-fractures-of-the-radius-and-ulna-in-toy-breed-dogs-using-a-free-autogenous-omental-graft-and-bone-plating-by-w-i-baltzer-et-al-vet-comp-orthop-traumatol-2015-28-131-139
#13
(no author information available yet)
No abstract text is available yet for this article.
January 27, 2017: Veterinary and Comparative Orthopaedics and Traumatology: V.C.O.T
https://www.readbyqxmd.com/read/28114331/serum-glycoproteome-profiles-for-distinguishing-intestinal-fibrosis-from-inflammation-in-crohn-s-disease
#14
Ryan W Stidham, Jing Wu, Jiaqi Shi, David M Lubman, Peter D R Higgins
BACKGROUND: Reliable identification and quantitation of intestinal fibrosis in the setting of co-existing inflammation due to Crohn's disease (CD) is difficult. We aimed to identify serum biomarkers which distinguish inflammatory from fibrostenotic phenotypes of CD using serum glycoproteome profiles. METHODS: Subjects with fibrostenotic and inflammation-predominant CD phenotypes (n = 20 per group) underwent comparison by quantitative serum glycoproteome profiles as part of a single tertiary care center cohort study...
2017: PloS One
https://www.readbyqxmd.com/read/28100410/comp-serum-levels-a-new-non-invasive-biomarker-of-liver-fibrosis-in-patients-with-chronic-viral-hepatitis
#15
Kalliopi Zachou, Stella Gabeta, Zakera Shums, Nikolaos K Gatselis, George K Koukoulis, Gary L Norman, George N Dalekos
BACKGROUND & AIMS: Recently we have shown that cartilage oligomeric matrix protein (COMP), a fibrillar collagen assembly regulator, is strongly associated with cirrhosis and hepatocellular carcinoma progression. Therefore, we assessed whether serum COMP levels can be used as a non-invasive fibrosis marker in patients with chronic viral hepatitis (CVH) and compared this marker with standard methods for disease stage assessment [histology, transient elastography (TE), APRI, FIB-4]. METHODS: Sera from 116 CVH patients, 66 HBV [24 female; median age 53(22-76)] and 50 HCV [21 female; median age 48...
January 15, 2017: European Journal of Internal Medicine
https://www.readbyqxmd.com/read/28097685/cartilage-oligomeric-matrix-protein-comp-neo-epitope-in-the-synovial-fluid-of-horses-with-acute-lameness-a-new-biomarker-for-the-early-stages-of-osteoarthritis
#16
E Skiöldebrand, S Ekman, L MattssonHultén, E Svala, K Björkman, A Lindahl, A Lundqvist, P Önnerfjord, C Sihlbom, U Rüetschi
BACKGROUND: Clinical tools to diagnose the early changes of osteoarthritis (OA) that occur in the articular cartilage are lacking. OBJECTIVES: We sought to identify and quantify a novel cartilage oligomeric matrix protein (COMP) neo-epitope in the synovial fluid from the joints of healthy horses and those with different stages of OA. STUDY DESIGN: In vitro quantitative proteomics and assay development with application in synovial fluids samples obtained from biobanks of well-characterised horses...
January 17, 2017: Equine Veterinary Journal
https://www.readbyqxmd.com/read/28095466/substrate-stiffness-controls-osteoblastic-and-chondrocytic-differentiation-of-mesenchymal-stem-cells-without-exogenous-stimuli
#17
Rene Olivares-Navarrete, Erin M Lee, Kathryn Smith, Sharon L Hyzy, Maryam Doroudi, Joseph K Williams, Ken Gall, Barbara D Boyan, Zvi Schwartz
Stem cell fate has been linked to the mechanical properties of their underlying substrate, affecting mechanoreceptors and ultimately leading to downstream biological response. Studies have used polymers to mimic the stiffness of extracellular matrix as well as of individual tissues and shown mesenchymal stem cells (MSCs) could be directed along specific lineages. In this study, we examined the role of stiffness in MSC differentiation to two closely related cell phenotypes: osteoblast and chondrocyte. We prepared four methyl acrylate/methyl methacrylate (MA/MMA) polymer surfaces with elastic moduli ranging from 0...
2017: PloS One
https://www.readbyqxmd.com/read/28094951/diabat-interpolation-for-polymorph-free-energy-differences
#18
Kartik Kamat, Baron Peters
Existing methods to compute free-energy differences between polymorphs use harmonic approximations, advanced non-Boltzmann bias sampling techniques, and/or multistage free-energy perturbations. This work demonstrates how Bennett's diabat interpolation method ( J. Comput. Phys. 1976, 22, 245 ) can be combined with energy gaps from lattice-switch Monte Carlo techniques ( Phys. Rev. E 2000, 61, 906 ) to swiftly estimate polymorph free-energy differences. The new method requires only two unbiased molecular dynamics simulations, one for each polymorph...
January 23, 2017: Journal of Physical Chemistry Letters
https://www.readbyqxmd.com/read/28064080/first-principles-study-for-the-key-electronic-optical-and-nonlinear-optical-properties-of-novel-donor-acceptor-chalcones
#19
Shabbir Muhammad, Abdullah G Al-Sehemi, Zhongmin Su, Hongliang Xu, Ahmad Irfan, Aijaz Rasool Chaudhry
Using first-principle methods, several key electronic, optical and nonlinear optical properties are calculated for two recently synthesized chalcone derivatives i.e. (2E)-3-(4-methylphenyl)-1-(3-nitrophenyl)prop-2-en-1-one (comp.1) and (2E)-3-[4-(dimethylamino)phenyl]-1-(3-nitrophenyl)prop-2-en-1-one (comp.2). The calculation of dipole moment, polarizability <α>, anisotropy of polarizability as well as second hyperpolarizability (usually considered as a signature for two photon absorption phenomenon) are performed using density functional theory methods at PBE0/6-311G** level of theory...
December 14, 2016: Journal of Molecular Graphics & Modelling
https://www.readbyqxmd.com/read/28057075/the-efficacy-of-prospective-memory-rehabilitation-plus-metacognitive-skills-training-for-adults-with-traumatic-brain-injury-study-protocol-for-a-randomized-controlled-trial
#20
Jennifer Fleming, Tamara Ownsworth, Emmah Doig, Lauren Hutton, Janelle Griffin, Melissa Kendall, David H K Shum
BACKGROUND: Impairment of prospective memory (PM) is common following traumatic brain injury (TBI) and negatively impacts on independent living. Compensatory approaches to PM rehabilitation have been found to minimize the impact of PM impairment in adults with TBI; however, poor self-awareness after TBI poses a major barrier to the generalization of compensatory strategies in daily life. Metacognitive skills training (MST) is a cognitive rehabilitation approach that aims to facilitate the development of self-awareness in adults with TBI...
January 5, 2017: Trials
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