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https://www.readbyqxmd.com/read/28056080/comparison-of-ipaq-sf-and-two-other-physical-activity-questionnaires-with-accelerometer-in-adolescent-boys
#1
Triin Rääsk, Jarek Mäestu, Evelin Lätt, Jaak Jürimäe, Toivo Jürimäe, Uku Vainik, Kenn Konstabel
Self-report measures of physical activity (PA) are easy to use and popular but their reliability is often questioned. Therefore, the general aim of the present study was to investigate the association of PA questionnaires with accelerometer derived PA, in a sample of adolescent boys. In total, 191 pubertal boys (mean age 14.0 years) completed three self-report questionnaires and wore an accelerometer (ActiGraph GT1M) for 7 consecutive days. The PA questionnaires were: International Physical Activity Questionnaire-Short Form (IPAQ-SF), Tartu Physical Activity Questionnaire (TPAQ), and the Inactivity subscale from Domain-Specific Impulsivity (DSI) scale...
2017: PloS One
https://www.readbyqxmd.com/read/28049643/polyphosphate-nanoparticles-on-the-platelet-surface-trigger-contact-system-activation
#2
Johan J F Verhoef, Arjan D Barendrecht, Katrin F Nickel, Kim Dijkxhoorn, Ellinor Kenne, Linda Labberton, Owen J T McCarty, Raymond Schiffelers, Harry F Heijnen, Antoni P Hendrickx, Huub Schellekens, Marcel H Fens, Steven de Maat, Thomas Renné, Coen Maas
Polyphosphate is an inorganic polymer that can potentiate several interactions in the blood coagulation system. Blood platelets contain polyphosphate, and the secretion of platelet-derived polyphosphate has been associated with increased thrombus formation and activation of coagulation factor XII. However, the small polymer size of secreted platelet polyphosphate limits its capacity to activate factor XII in vitro. Thus, the mechanism by which platelet polyphosphate contributes to thrombus formation remains unclear...
January 3, 2017: Blood
https://www.readbyqxmd.com/read/28012898/development-of-a-high-throughput-multiplexed-real-time-rt-pcr-assay-for-detection-of-human-pegivirus-1-and-2
#3
Matthew Frankel, Kenn Forberg, Kelly E Coller, Michael G Berg, John Hackett, Gavin Cloherty, George J Dawson
Human Pegivirus 2 (HPgV-2) was recently identified in the bloodstream of HCV-infected and multiply transfused individuals. Initial reports show HPgV-2 circulates at a low prevalence in HCV co-infected individuals, necessitating testing of large cohorts of samples to identify infected persons. The identification of additional HPgV-2 cases was facilitated by the development of a high throughput and reliable molecular reverse transcription polymerase chain reaction (RT-PCR) assay intended for use on the automated Abbott m2000 system with a capability of extracting and testing 96 samples at once...
December 22, 2016: Journal of Virological Methods
https://www.readbyqxmd.com/read/28000003/long-term-risk-of-falls-in-an-incident-parkinson-s-disease-cohort-the-norwegian-parkwest-study
#4
Ylva Hivand Hiorth, Guido Alves, Jan Petter Larsen, Jörn Schulz, Ole-Bjørn Tysnes, Kenn Freddy Pedersen
The objective of this study is to examine the frequency, development, concomitants, and risk factors of falls in a population-based incident Parkinson's disease (PD) cohort. One hundred eighty-one drug-naïve patients with incident PD and 173 normal controls recruited from the Norwegian ParkWest study were prospectively monitored over 7 years. Information on falls was obtained biannually from patients, and at baseline and after 1, 3, 5, and 7 years of follow-up in control subjects. Generalized estimating equation models for correlated data were applied to investigate concomitant features of falls and risk factors for incident falls during 7 years of follow-up in PD...
December 20, 2016: Journal of Neurology
https://www.readbyqxmd.com/read/27987864/1d-nmr-methods-for-determination-of-degree-of-cross-linking-and-bdde-substitution-positions-in-ha-hydrogels
#5
Frida J Wende, Suresh Gohil, Lars I Nord, Anne Helander Kenne, Corine Sandström
Hyaluronic acid polymers cross-linked with BDDE are today among the most used hydrogels for biomedical applications. The physical properties of the hydrogels depend, among other parameters, on the degree of cross-linking of HA. Another parameter likely to affect the physical properties is the substitution position of the linker on the HA functional groups. A NMR-based method for the determination of these parameters in hyaluronic acid hydrogels is presented. The method is based on the degradation of HA cross linked hydrogels by chondroitinase ABC followed by one-dimensional (1)H and (13)C NMR analysis...
February 10, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/27984742/back-to-the-roots-deep-view-into-the-evolutionary-history-of-adp-ribosylation-opened-by-the-dna-targeting-toxin-antitoxin-module-dartg
#6
Alexander Harms, Kenn Gerdes
In this issue of Molecular Cell, Jankevicius et al. (2016) characterize the DarTG toxin-antitoxin module in which the DarT toxin ADP-ribosylates single-stranded DNA and the DarG antitoxin counteracts DarT by direct binding and by enzymatic removal of the ADP-ribosylation.
December 15, 2016: Molecular Cell
https://www.readbyqxmd.com/read/27980159/mechanisms-of-bacterial-persistence-during-stress-and-antibiotic-exposure
#7
REVIEW
Alexander Harms, Etienne Maisonneuve, Kenn Gerdes
Bacterial persister cells avoid antibiotic-induced death by entering a physiologically dormant state and are considered a major cause of antibiotic treatment failure and relapsing infections. Such dormant cells form stochastically, but also in response to environmental cues, by various pathways that are usually controlled by the second messenger (p)ppGpp. For example, toxin-antitoxin modules have been shown to play a major role in persister formation in many model systems. More generally, the diversity of molecular mechanisms driving persister formation is increasingly recognized as the cause of physiological heterogeneity that underlies collective multistress and multidrug tolerance of persister subpopulations...
December 16, 2016: Science
https://www.readbyqxmd.com/read/27940278/short-term-effects-of-supplemental-oxygen-on-6-minute-walk-test-outcomes-in-copd-patients-a-randomized-placebo-controlled-single-blind-cross-over-trial
#8
Inga Jarosch, Rainer Gloeckl, Eva Damm, Anna-Lena Schwedhelm, David Buhrow, Andreas Jerrentrup, Martijn A Spruit, Klaus Kenn
BACKGROUND: The acute effect of supplemental oxygen during exercise has been shown to differ largely among patients with COPD. It is unknown what the oxygen response is influenced by. METHODS: In a randomized and single-blinded fashion, 124 COPD patients underwent one 6-minute walk test on supplemental oxygen (6MWTO2) and one on compressed room air (6MWTRA) after a practice 6MWT. Both gases wedre delivered via standard nasal prongs (2 liters/min). For analyses, patients were stratified based on PaO2 values: (a) 34 patients with resting hypoxemia (HYX), (b) 43 patients with exercise-induced hypoxemia (EIH) and (c) 31 normoxemic patients (NOX) were compared...
December 8, 2016: Chest
https://www.readbyqxmd.com/read/27933893/isolation-and-structure-elucidation-by-lc-dad-ms-and-lc-dad-spe-nmr-of-cyclopeptide-alkaloids-from-the-roots-of-ziziphus-oxyphylla-and-evaluation-of-their-antiplasmodial-activity
#9
Emmy Tuenter, Rizwan Ahmad, Kenn Foubert, Adnan Amin, Maria Orfanoudaki, Paul Cos, Louis Maes, Sandra Apers, Luc Pieters, Vassiliki Exarchou
Nine cyclopeptide alkaloids (1-9), of which five (compounds 2, 3, 5, 8, and 9) are described herein for the first time, were isolated from roots of Ziziphus oxyphylla by means of conventional separation methods as well as semipreparative HPLC with DAD and ESIMS detection and LC-DAD-SPE-NMR. Structure elucidation was done by spectroscopic means. Nummularine-R (1), a previously known constituent from this species, was isolated along with its new derivatives O-desmethylnummularine-R (2) and O-desmethylnummularine-R N-oxide (3)...
November 23, 2016: Journal of Natural Products
https://www.readbyqxmd.com/read/27911342/impulsive-and-compulsive-behaviors-in%C3%A2-parkinson-s-disease-the-norwegian-parkwest-study
#10
Aleksander H Erga, Guido Alves, Jan Petter Larsen, Ole Bj Rn Tysnes, Kenn Freddy Pedersen
BACKGROUND: Impulsive and compulsive behaviors (ICBs) are frequent in Parkinson's disease (PD), but data from population-based cohorts is lacking. OBJECTIVES: To determine the frequency and associated demographic, clinical, neuropsychiatric and cognitive features of ICBs in a population-based PD cohort. METHODS: This cross-sectional study included 125 patients with PD and 159 age- and gender-matched normal controls recruited from the Norwegian ParkWest study...
November 30, 2016: Journal of Parkinson's Disease
https://www.readbyqxmd.com/read/27890490/fragmentation-of-daily-rhythms-associates-with-obesity-and-cardiorespiratory-fitness-in-adolescents-the-helena-study
#11
Marta Garaulet, Antonio Martinez-Nicolas, Jonatan R Ruiz, Kenn Konstabel, Idoia Labayen, Marcela González-Gross, Ascensión Marcos, Dénes Molnar, Kurt Widhalm, Jose Antonio Casajús, Stefaan De Henauw, Anthony Kafatos, Christina Breidenassel, Michael Sjöström, Manuel J Castillo, Luis A Moreno, Juan A Madrid, Francisco B Ortega
BACKGROUND & AIMS: Chronobiology studies periodic changes in living organisms and it has been proposed as a promising approach to investigate obesity. We analyze the association of the characteristics of the rest-activity rhythms with obesity, cardiorespiratory fitness and metabolic risk in adolescents from nine European countries. METHODS: 1044 adolescents (12.5-17.5 y) were studied. Circadian health was evaluated by actigraphy with accelerometers (Actigraph GT1M)...
November 5, 2016: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/27887620/anatomy-meets-dentistry-linking-anatomy-and-clinical-practice-in-the-preclinical-dental-curriculum
#12
Nicole Rafai, Martin Lemos, Lieven Nils Kennes, Ayichah Hawari, Susanne Gerhardt-Szép, Irmgard Classen-Linke
BACKGROUND: Establishing a strong link early on between preclinical coursework and the clinical context is necessary for students to be able to recognize the practical relevance of the curriculum during their preclinical anatomical courses and to transfer knowledge more easily. Our objective was to enhance the clinical relevance of a preclinical anatomy course for second-year medical students of dentistry by implementing an interdisciplinary skills training course on "Palpation of the Head and Neck Muscles" and to measure the learning outcomes...
November 25, 2016: BMC Medical Education
https://www.readbyqxmd.com/read/27884655/zika-virus-infection-in-dexamethasone-immunosuppressed-mice-demonstrating-disseminated-infection-with-multi-organ-involvement-including-orchitis-effectively-treated-by-recombinant-type-i-interferons
#13
Jasper Fuk-Woo Chan, Anna Jinxia Zhang, Chris Chung-Sing Chan, Cyril Chik-Yan Yip, Winger Wing-Nga Mak, Houshun Zhu, Vincent Kwok-Man Poon, Kah-Meng Tee, Zheng Zhu, Jian-Piao Cai, Jessica Oi-Ling Tsang, Kenn Ka-Heng Chik, Feifei Yin, Kwok-Hung Chan, Kin-Hang Kok, Dong-Yan Jin, Rex Kwok-Him Au-Yeung, Kwok-Yung Yuen
BACKGROUND: Disseminated or fatal Zika virus (ZIKV) infections were reported in immunosuppressed patients. Existing interferon-signaling/receptor-deficient mouse models may not be suitable for evaluating treatment effects of recombinant interferons. METHODS: We developed a novel mouse model for ZIKV infection by immunosuppressing BALB/c mice with dexamethasone. RESULTS: Dexamethasone-immunosuppressed male mice (6-8weeks) developed disseminated infection as evidenced by the detection of ZIKV-NS1 protein expression and high viral loads in multiple organs...
December 2016: EBioMedicine
https://www.readbyqxmd.com/read/27874037/visualizing-epithelial-expression-of-egfr-in-vivo-with-distal-scanning-side-viewing-confocal-endomicroscope
#14
Xiyu Duan, Haijun Li, Juan Zhou, Quan Zhou, Kenn R Oldham, Thomas D Wang
Confocal endomicroscopy is an emerging imaging technology that has recently been introduced into the clinic to instantaneously collect "optical biopsies" in vivo with histology-like quality. Here, we demonstrate a fast scanner located in the distal end of a side-viewing instrument using a compact lens assembly with numerical aperture of 0.5 to achieve a working distance of 100 μm and field-of-view of 300 × 400 μm(2). The microelectromechanical systems (MEMS) mirror was designed based on the principle of parametric resonance and images at 5 frames per second...
November 22, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27847349/assessing-the-viability-of-social-media-for-disseminating-evidence-based-nutrition-practice-guideline-through-content-analysis-of-twitter-messages-and-health-professional-interviews-an-observational-study
#15
Rosa K Hand, Deric Kenne, Taylor M Wolfram, Jenica K Abram, Michael Fleming
BACKGROUND: Given the high penetration of social media use, social media has been proposed as a method for the dissemination of information to health professionals and patients. This study explored the potential for social media dissemination of the Academy of Nutrition and Dietetics Evidence-Based Nutrition Practice Guideline (EBNPG) for Heart Failure (HF). OBJECTIVES: The objectives were to (1) describe the existing social media content on HF, including message content, source, and target audience, and (2) describe the attitude of physicians and registered dietitian nutritionists (RDNs) who care for outpatient HF patients toward the use of social media as a method to obtain information for themselves and to share this information with patients...
November 15, 2016: Journal of Medical Internet Research
https://www.readbyqxmd.com/read/27819004/comparison-of-perineal-sonographically-measured-and-functional-urodynamic-urethral-length-in-female-urinary-incontinence
#16
Laila Najjari, Nadine Janetzki, Lieven Kennes, Elmar Stickeler, Julia Serno, Julia Behrendt
Objectives. To detect the anatomical insufficiency of the urethra and to propose perineal ultrasound as a useful, noninvasive tool for the evaluation of incontinence, we compared the anatomical length of the urethra with the urodynamic functional urethral length. We also compared the urethral length between continent and incontinent females. Methods. 149 female patients were enrolled and divided into four groups (stress, urge, or mixed incontinence; control). Sonographically measured urethral length (SUL) and urodynamic functional urethral length (FUL) were analyzed statistically...
2016: BioMed Research International
https://www.readbyqxmd.com/read/27776377/saponins-and-flavonoids-from-an-infusion-of-herniaria-hirsuta
#17
Ines van Dooren, Kenn Foubert, Sebastiaan Bijttebier, Mart Theunis, Stefaniya Velichkova, Magda Claeys, Luc Pieters, Vassiliki Exarchou, Sandra Apers
Stone diseases present a major health problem in the Western society, since both urinary and biliary stones occur with a relatively high prevalence of 10-12 % and 10-20 %, respectively, and demonstrate a high recurrence rate. At the moment treatment is mainly based on interventional procedures, or prophylactic and dissolution therapy. However, many of the current drugs cause severe side effects, and therefore, there is an increasing interest in natural medicines. At the moment no registered herbal medicinal products are available for treatment of gallstones...
December 2016: Planta Medica
https://www.readbyqxmd.com/read/27765447/-epidemiological-and-clinical-aspects-of-tropical-endemic-limbo-conjunctivitis-in-students-in-yaound%C3%A3
#18
E Epée, G Koki, V A Dohvoma, C Kenne, N P Biangoup, O Tocke, C Mvilongo, A L Bella, C Ebana Mvogo
INTRODUCTION: TELC, tropical endemic limbo-conjunctivitis, is a keratoconjunctivitis seen more frequently in dry intertropical settings than humid ones. We aim to determine the epidemiologic and clinical profile of this condition in a city with a humid equatorial climate. PATIENTS AND METHODS: During first third of 2014, we conducted a cross-sectional descriptive study in schools. Included were children aged 3-15 years who received parental consent. The selection was conducted in two steps...
November 2016: Journal Français D'ophtalmologie
https://www.readbyqxmd.com/read/27737476/triterpenoid-saponins-from-maesa-argentea-leaves
#19
Kenn Foubert, Taposh Gorella, Ahmad Faizal, Paul Cos, Louis Maes, Sandra Apers, Danny Geelen, Luc Pieters
Within an ongoing research program on saponins with potential antileishmanial activity, four previously undescribed saponins were isolated from Maesa argentea leaves and identified by LC-MS/MS, GC-MS, and 1D and 2D NMR spectroscopy as 3β-O-{([β-D-glucopyranosyl-(1 → 2)-α-L-rhamnopyranosyl-(1 → 2)-β-D-galactopyranosyl-(1 → 3)]-[β-D-galactopyranosyl-(1 → 2)]-β-D-glucuronopyranosyl)}-21β-angeloyloxy-22α-butanoyloxy-13β,28-oxidoolean-16α,28α-diol (1), 3β-O-{([β-D-glucopyranosyl-(1 → 2)-α-L-rhamnopyranosyl-(1 → 2)-β-D-galactopyranosyl-(1 → 3)]-[β-D-galactopyranosyl-(1 → 2)]-β-D-glucuronopyranosyl)}-21β,22α-angeloyloxy-13β,28-oxidoolean-16α,28α-diol (2), 3β-O-{([β-D-glucopyranosyl-(1 → 2)-α-L-rhamnopyranosyl-(1 → 2)-β-D-galactopyranosyl-(1 → 3)]-[β-D-galactopyranosyl-(1 → 2)]-β-D-glucuronopyranosyl)}-21β-angeloyloxy-22α-(E)-cinnamoyloxy-13β,28-oxidoolean-16α,28α-diol (3), and 3β-O-{([α-L-rhamnopyranosyl-(1 → 2)-β-D-galactopyranosyl-(1 → 3)]-[β-D-galactopyranosyl-(1 → 2)]-β-D-glucuronopyranosyl)}-21β-angeloyloxy-22α-(E)-cinnamoyloxy-13β,28-oxidoolean-16α,28α-diol (4)...
December 2016: Planta Medica
https://www.readbyqxmd.com/read/27725008/diet-misreporting-can-be-corrected-confirmation-of-the-association-between-energy-intake-and-fat-free-mass-in-adolescents
#20
Uku Vainik, Kenn Konstabel, Evelin Lätt, Jarek Mäestu, Priit Purge, Jaak Jürimäe
Subjective energy intake (sEI) is often misreported, providing unreliable estimates of energy consumed. Therefore, relating sEI data to health outcomes is difficult. Recently, Börnhorst et al. compared various methods to correct sEI-based energy intake estimates. They criticised approaches that categorise participants as under-reporters, plausible reporters and over-reporters based on the sEI:total energy expenditure (TEE) ratio, and thereafter use these categories as statistical covariates or exclusion criteria...
October 2016: British Journal of Nutrition
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