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https://www.readbyqxmd.com/read/28340481/metabolic-profiling-of-tyrosine-tryptophan-and-glutamate-in-human-urine-using-gas-chromatography-tandem-mass-spectrometry-combined-with-single-spe-cleanup
#1
Hyun Ju Shin, Na Hyun Park, Wonwoong Lee, Man Ho Choi, Bong Chul Chung, Jongki Hong
The tyrosine, tryptophan, and glutamate metabolic pathways play key roles on pathological state of neuronal functions and the change of their levels in biological systems reflects the progress degree of neuronal diseases. Comprehensive profiling of these metabolites is important to find new biomarkers for diagnosis or prognosis of various neuronal diseases. However, the overall profiling analysis of various neurochemicals in biological sample is confronted with several limitations due to their low concentration and physicochemical properties and the coexistence of matrices...
March 16, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/28340441/type-d-personality-stress-coping-strategies-and-self-efficacy-as-predictors-of-facebook-intrusion
#2
Agata Błachnio, Aneta Przepiorka, Stanisław Jerzy Czuczwar
Recently, Facebook has become one of the most popular social networking sites. People use it more and more often. A number of studies have recently addressed the issue of excessive Facebook use, showing this phenomenon to be a spreading problem. The main aim of the present study was to examine whether Type D personality, self-efficacy and coping strategies are related to Facebook intrusion. The participants were 882 students of Polish universities, all of them Facebook users (72% women, mean age: 22.25 years, SD =2...
March 14, 2017: Psychiatry Research
https://www.readbyqxmd.com/read/28340427/identification-and-characterization-of-a-%C3%AE-defensin-gene-involved-in-the-immune-defense-response-of-channel-catfish-ictalurus-punctatus
#3
Jieyao Zhu, Hong Wang, Jun Wang, Xingli Wang, Shuang Peng, Yi Geng, Kaiyu Wang, Pin Ouyang, Zhiqiong Li, Xiaoli Huang, Defang Chen
Antimicrobial peptides are small peptides that play important roles in a host's innate immune response. As an important antimicrobial peptide, β-defensin widely distribute in mammals, insects and plants with broad-spectrum antimicrobial activity. In this study, the β-defensin gene of the channel catfish, Ictalurus punctatus, was cloned, sequenced, and subjected to a bioinformatic analysis. The β-defensin gene of the channel catfish contains three exons and two introns, and encodes a precursor peptide consisting of two domains: a signal peptide of 24 amino acid residues and a mature peptide of 43 amino acid residues...
March 21, 2017: Molecular Immunology
https://www.readbyqxmd.com/read/28340417/interfacial-interactions-between-skeletonema-costatum-extracellular-organic-matter-and-metal-oxides-implications-for-ceramic-membrane-filtration
#4
Noor Zaouri, Leonardo Gutierrez, Laure Dramas, Daniel Garces, Jean-Philippe Croue
In the current study, the interfacial interactions between the high molecular weight (HMW) compounds of Skeletonema costatum (SKC) extracellular organic matter (EOM) and ZrO2 or Al2O3, were investigated by atomic force microscopy (AFM). HMW SKC-EOM was rigorously characterized and described as a hydrophilic organic compound mainly comprised of polysaccharide-like structures. Lipids and proteins were also observed, although in lower abundance. HMW SKC-EOM displayed attractive forces during approaching (i.e., leading to jump-to-contact events) and adhesion forces during retracting regime to both metal oxides at all solution conditions tested, where electrostatics and hydrogen bonding were suggested as dominant interacting mechanisms...
March 21, 2017: Water Research
https://www.readbyqxmd.com/read/28340360/the-influence-of-carbohydrate-consumption-on-glycemic-control-in-pregnant-women-with-type-1-diabetes
#5
Björg Ásbjörnsdóttir, Cecelia E Akueson, Helle Ronneby, Ane Rytter, Jens R Andersen, Peter Damm, Elisabeth R Mathiesen
AIMS: To study the influence of the quantity and the quality of carbohydrate consumption on glycemic control in early pregnancy among women with type 1 diabetes. METHODS: A retrospective study of 107 women with type 1 diabetes who completed 1-3days of diet recording before first antenatal visit, as a part of routine care. The total daily carbohydrate consumption from the major sources (e.g. bread, potatoes, rice, pasta, dairy products, fruits, candy) was calculated...
December 23, 2016: Diabetes Research and Clinical Practice
https://www.readbyqxmd.com/read/28340358/lysosomal-rupture-induced-by-structurally-distinct-chitosans-either-promotes-a-type-1-ifn-response-or-activates-the-inflammasome-in-macrophages
#6
David Fong, Pascal Grégoire-Gélinas, Alexandre P Cheng, Tal Mezheritsky, Marc Lavertu, Sachiko Sato, Caroline D Hoemann
Chitosan is a family of glucosamine and N-acetyl glucosamine polysaccharides with poorly understood immune modulating properties. Here, functional U937 macrophage responses were analyzed in response to a novel library of twenty chitosans with controlled degree of deacetylation (DDA, 60-98%), molecular weight (1 to >100 kDa), and acetylation pattern (block vs. random). Specific chitosan preparations (10 or 190 kDa 80% block DDA and 3, 5, or 10 kDa 98% DDA) either induced macrophages to release CXCL10 and IL-1ra at 5-50 μg/mL, or activated the inflammasome to release IL-1β and PGE2 at 50-150 μg/mL...
March 15, 2017: Biomaterials
https://www.readbyqxmd.com/read/28340356/acquiring-variation-in-an-artificial-language-children-and-adults-are-sensitive-to-socially-conditioned-linguistic-variation
#7
Anna Samara, Kenny Smith, Helen Brown, Elizabeth Wonnacott
Languages exhibit sociolinguistic variation, such that adult native speakers condition the usage of linguistic variants on social context, gender, and ethnicity, among other cues. While the existence of this kind of socially conditioned variation is well-established, less is known about how it is acquired. Studies of naturalistic language use by children provide various examples where children's production of sociolinguistic variants appears to be conditioned on similar factors to adults' production, but it is difficult to determine whether this reflects knowledge of sociolinguistic conditioning or systematic differences in the input to children from different social groups...
March 21, 2017: Cognitive Psychology
https://www.readbyqxmd.com/read/28340340/selective-chemical-inhibition-of-pgc-1%C3%AE-gluconeogenic-activity-ameliorates-type-2-diabetes
#8
Kfir Sharabi, Hua Lin, Clint D J Tavares, John E Dominy, Joao Paulo Camporez, Rachel J Perry, Roger Schilling, Amy K Rines, Jaemin Lee, Marc Hickey, Melissa Bennion, Michelle Palmer, Partha P Nag, Joshua A Bittker, José Perez, Mark P Jedrychowski, Umut Ozcan, Steve P Gygi, Theodore M Kamenecka, Gerald I Shulman, Stuart L Schreiber, Patrick R Griffin, Pere Puigserver
Type 2 diabetes (T2D) is a worldwide epidemic with a medical need for additional targeted therapies. Suppression of hepatic glucose production (HGP) effectively ameliorates diabetes and can be exploited for its treatment. We hypothesized that targeting PGC-1α acetylation in the liver, a chemical modification known to inhibit hepatic gluconeogenesis, could be potentially used for treatment of T2D. Thus, we designed a high-throughput chemical screen platform to quantify PGC-1α acetylation in cells and identified small molecules that increase PGC-1α acetylation, suppress gluconeogenic gene expression, and reduce glucose production in hepatocytes...
March 23, 2017: Cell
https://www.readbyqxmd.com/read/28340322/immunogenicity-and-safety-of-primary-and-booster-vaccination-with-2-investigational-formulations-of-diphtheria-tetanus-and-haemophilus-influenzae-type-b-antigens-in-a-hexavalent-dtpa-hbv-ipv-hib-combination-vaccine-in-comparison-with-the-licensed-infanrix-hexa
#9
Timo Vesikari, Luis Rivera, Tiina Korhonen, Anitta Ahonen, Brigitte Cheuvart, Marjan Hezareh, Winnie Janssens, Narcisa Mesaros
Safety and immunogenicity of 2 investigational formulations of diphtheria, tetanus and Haemophilus influenzae type b antigens of the combined diphtheria-tetanus-acellular pertussis-hepatitis B-inactivated poliomyelitis-Hib vaccine (DTPa-HBV-IPV/Hib) were evaluated in a Primary (NCT01248884) and a Booster vaccination (NCT01453998) study. In the Primary study, 721 healthy infants (randomized 1:1:1) received 3 doses of DTPa-HBV-IPV/Hib formulation A (DATAPa-HBV-IPV/Hib), or B (DBTBPa-HBV-IPV/Hib) or the licensed DTPa-HBV-IPV/Hib vaccine (Infanrix hexa, GSK; control group) at 2, 3, 4 months of age...
March 24, 2017: Human Vaccines & Immunotherapeutics
https://www.readbyqxmd.com/read/28340294/a-well-defined-osmium-cupin-complex-hyperstable-artificial-osmium-peroxygenase
#10
Nobutaka Fujieda, Takumi Nakano, Yuki Taniguchi, Haruna Ichihashi, Hideki Sugimoto, Yuma Morimoto, Yosuke Nishikawa, Genji Kurisu, Shinobu Itoh
Thermally stable TM1459 cupin superfamily protein from Thermotoga maritima was repurposed as an osmium (Os) peroxygenase by metal-substitution strategy employing the metal-binding promiscuity. This novel artificial metalloenzyme bears a datively bound Os ion supported by the 4-histidine motif. The well-defined Os center is responsible for not only the catalytic activity but also the thermodynamic stability of the protein folding, leading to the robust biocatalyst (Tm ≈ 120 °C). The spectroscopic analysis and atomic resolution X-ray crystal structures of Os-bound TM1459 revealed two types of donor sets to Os center with octahedral coordination geometry...
March 24, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28340228/dual-immunostain-with-satb2-and-ck20-differentiates-appendiceal-mucinous-neoplasms-from-ovarian-mucinous-neoplasms
#11
Zaibo Li, Rachel Roth, Jonathan B Rock, Amy Lehman, William L Marsh, Adrian Suarez, Wendy L Frankel
Objectives: Determination of the primary site of origin for mucinous neoplasms identified in the peritoneal and/or pelvic cavities may be challenging, with major differential diagnoses including appendiceal mucinous neoplasm (AMN) and ovarian mucinous neoplasm (OMN). Special AT-rich sequence binding protein 2 (SATB2) has been shown to be highly selectively expressed in the lower gastrointestinal tract, including the appendix. Methods: We investigated the utility of a dual stain (DS) with SATB2 or caudal type homeobox 2 (CDX2) and cytokeratin 20 (CK20) or villin in distinguishing AMNs from OMNs...
March 18, 2017: American Journal of Clinical Pathology
https://www.readbyqxmd.com/read/28340221/nationwide-multicentre-kidney-biopsy-study-of-japanese-patients-with-type-2-diabetes
#12
Kengo Furuichi, Yukio Yuzawa, Miho Shimizu, Akinori Hara, Tadashi Toyama, Hiroshi Kitamura, Yoshiki Suzuki, Hiroshi Sato, Noriko Uesugi, Yoshifumi Ubara, Satoshi Hisano, Yoshihiko Ueda, Shinichi Nishi, Hitoshi Yokoyama, Tomoya Nishino, Kentaro Kohagura, Daisuke Ogawa, Koki Mise, Yugo Shibagaki, Kenjiro Kimura, Masakazu Haneda, Hirofumi Makino, Seiichi Matsuo, Takashi Wada
Background.: The clinical and pathologic manifestations of nephropathy due to type 2 diabetes are diverse, but large-scale pathologic studies with long-term observations are limited. Methods.: Kidney biopsies and clinical data of 600 patients with type 2 diabetes were collected retrospectively from 13 centres across Japan. Thirteen pathologic findings (nine glomerular lesions, two interstitial lesions and two vascular lesions) were clearly defined and scored. Results...
March 2, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28340167/factors-influencing-cognitive-impairment-in-neuropathic-and-musculoskeletal-pain-and-fibromyalgia
#13
Begoña Ojeda, María Dueñas, Alejandro Salazar, Juan Antonio Mico, Luis Miguel Torres, Inmaculada Failde
Objective.:  To assess cognitive performance of chronic pain (CP) patients diagnosed with three types of pain-neuropathic pain (NP), musculoskeletal (MSK), and fibromyalgia (FM)-and to analyze the factors influencing cognitive difficulties in each group. Methods.:  Two hundred fifty-four CP patients-104 NP, 99 MSK, 51 FM-and 72 pain-free subjects were included in the study. The "Test Your Memory" (TYM) scale was used to assess cognitive performance. Pain intensity was measured by means of the visual analog scale (VAS); the Hospital Anxiety and Depression scale was used to assess mental status, and the Medical Outcome Study (MOS) sleep scale to assess sleep quality...
March 13, 2017: Pain Medicine: the Official Journal of the American Academy of Pain Medicine
https://www.readbyqxmd.com/read/28340154/irradiation-strongly-reduces-tumorigenesis-of-human-induced-pluripotent-stem-cells
#14
Shoki Inui, Kazumasa Minami, Emiko Ito, Hiromasa Imaizumi, Seiji Mori, Masahiko Koizumi, Satsuki Fukushima, Shigeru Miyagawa, Yoshiki Sawa, Nariaki Matsuura
Induced pluripotent stem (iPS) cells have demonstrated they can undergo self-renewal, attain pluripotency, and differentiate into various types of functional cells. In clinical transplantation of iPS cells, however, a major problem is the prevention of tumorigenesis. We speculated that tumor formation could be inhibited by means of irradiation. Since the main purpose of this study was to explore the prevention of tumor formation in human iPS (hiPS) cells, we tested the effects of irradiation on tumor-associated factors such as radiosensitivity, pluripotency and cell death in hiPS cells...
March 3, 2017: Journal of Radiation Research
https://www.readbyqxmd.com/read/28340153/establishing-a-stand-alone-laboratory-dedicated-to-the-care-of-patients-with-ebola-virus-disease
#15
Jing Cao, Christine Senn, Pedro Castaneda, Sheree Humphries, Amy B Karger
Objective: To describe the process for establishment of a stand-alone laboratory dedicated to testing for Ebola virus disease (EVD). Methods: We selected 2 neighboring rooms for the EVD unit: 1 for patient care and 1 for laboratory testing. A limited test menu was developed after consultation with the team of healthcare providers treating patients with EVD, Centers for Disease Control and Prevention (CDC) recommendations, and other sites with EVD expertise. Results: We selected several point-of-care (POC) devices and manual assays to provide necessary testing...
March 13, 2017: Laboratory Medicine
https://www.readbyqxmd.com/read/28340115/cellular-senescence-in-mouse-hippocampus-after-irradiation-and-the-role-of-p53-and-p21
#16
Zoey Cheng, Yan Zhen Zheng, Yu-Qing Li, C Shun Wong
Diverse stress signals including irradiation may trigger cellular senescence. We asked whether irradiation induced senescence in mouse hippocampus, and whether p53 or p21 played a role in this response. Following whole-brain irradiation, polymerase chain reaction (PCR) arrays for senescence-associated genes showed increased expression of CDKN1A (p21) and CDKN2A (p19ARF) in mouse hippocampus at 9 weeks. Upregulation of p21 and p19ARF was confirmed using real-time PCR, which also demonstrated increased CDKN2A/p16INKa expression after irradiation...
March 14, 2017: Journal of Neuropathology and Experimental Neurology
https://www.readbyqxmd.com/read/28340103/diagnosis-to-ablation-time-as-a-predictor-of-success-early-choice-for-pulmonary-vein-isolation-and-long-term-outcome-in-atrial-fibrillation-results-from-the-middelheim-pvi-registry
#17
Y De Greef, B Schwagten, G B Chierchia, C de Asmundis, D Stockman, I Buysschaert
Aims: The aim of the study is to define long-term outcome of pulmonary vein isolation (PVI) in atrial fibrillation (AF) and to determine whether time window between AF diagnosis and PVI affects outcome. Methods and results: Consecutive AF patients undergoing PVI (2006-14) were followed for 5 years. Primary outcome was clinical success, defined as freedom of documented AF without anti-arrhythmic drugs respecting a 1-month blanking period. A 1000 patients were included (age 60 ± 10 years, CHA2DS2-VASc score 1 ± 1)...
March 2, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28340096/dual-vs-single-chamber-defibrillators-for-primary-prevention-of-sudden-cardiac-death-long-term-follow-up-of-the-d%C3%A3-fibrillateur-automatique-implantable-pr%C3%A3-vention-primaire-registry
#18
Pascal Defaye, Serge Boveda, Didier Klug, Frankie Beganton, Olivier Piot, Kumar Narayanan, Marie-Cécile Périer, Daniel Gras, Laurent Fauchier, Pierre Bordachar, Vincent Algalarrondo, Dominique Babuty, Jean-Claude Deharo, Christophe Leclercq, Eloi Marijon, Nicolas Sadoul
Aims: Implantable cardioverter defibrillators (ICDs) are an effective primary prevention of sudden cardiac death. We examined whether dual-chamber (DC) ICDs confer a greater benefit than single-chamber (SC) ICDs, and compared the long-term outcomes of recipients of each type of device implanted for primary prevention. Methods and results: Between 2002 and 2012, the DAI-PP registry consecutively enrolled 1258 SC- and 1280 DC-ICD recipients at 12 French medical centres...
March 8, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28340087/nutrigenomic-point-of-view-on-effects-and-mechanisms-of-action-of-ruminant-trans-fatty-acids-on-insulin-resistance-and-type-2-diabetes
#19
Bénédicte L Tremblay, Iwona Rudkowska
Evidence from observational studies suggests beneficial effects of ruminant trans fatty acids (rTFA) on insulin resistance (IR) and type 2 diabetes (T2D). However, beneficial effects of rTFA are not always observed in cell, animal, and human studies. This narrative review presents potential mechanisms of action of rTFA using nutrigenomics and microRNA results in an integrative model. In addition, the review presents factors, including measures of IR and T2D, dose and duration of studies, as well as health status, ethnicity, and genotypes of subjects, that may help explain the heterogeneity in response to rTFA supplementation...
March 7, 2017: Nutrition Reviews
https://www.readbyqxmd.com/read/28340027/influence-of-long-term-in-vivo-exposure-debris-accumulation-and-archwire-material-on-friction-force-among-different-types-of-brackets-and-archwires-couples
#20
Uroš Mezeg, Jasmina Primožic
Objective: The aim was to assess the influence of long-term in vivo exposure, debris accumulation and archwire material on static and kinetic friction force among different types of brackets and archwires couples. Material and Methods: Friction testing was performed among four lower incisors' brackets, conventional and self-ligating (SL), coupled with either nickel-titanium or stainless steel archwires, as-received and in vivo exposed in 18 subjects. The friction testing was performed for a sliding distance of 14 mm at a speed of 10 mm/min, with a starting force of 0...
February 28, 2017: European Journal of Orthodontics
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