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https://www.readbyqxmd.com/read/29029360/laser-desorption-ionization-mass-spectrometry-recent-progress-in-matrix-free-and-label-assisted-techniques
#1
REVIEW
Arundhoti Mandal, Monisha Singha, Partha Sarathi Addy, Amit Basak
The MALDI-based mass spectrometry, over the last three decades, has become an important analytical tool. It is a gentle ionization technique, usually applicable to detect and characterize analytes with high molecular weights like proteins and other macromolecules. The earlier difficulty of detection of analytes with low molecular weights like small organic molecules and metal ion complexes with this technique arose due to the cluster of peaks in the low molecular weight region generated from the matrix. To detect such molecules and metal ion complexes, a four-prong strategy has been developed...
October 13, 2017: Mass Spectrometry Reviews
https://www.readbyqxmd.com/read/29029097/impact-of-three-doses-of-vitamin-d3-on-serum-25-oh-d-deficiency-and-insufficiency-in-at-risk-schoolchildren
#2
Jennifer M Sacheck, Maria I Van Rompay, Virginia R Chomitz, Christina D Economos, Misha Eliasziw, Elizabeth Goodman, Catherine M Gordon, Michael F Holick
Objective: We investigated the daily dose of vitamin D needed to achieve serum 25-hydroxyvitamin D [25(OH)D] sufficiency among schoolchildren at-risk for deficiency. Study Design: The Daily D Health Study was a randomized double-blind vitamin D supplementation trial among racially/ethnically diverse schoolchildren (n=685) in the northeastern U.S. Children were supplemented with vitamin D3 at 600, 1000, or 2000 IU/day for six months. Measurements included serum 25(OH)D at baseline (Oct-Dec), 3 months (Jan-March), 6 months (April-June), and 12 months (6 months post-supplementation)...
September 27, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29029077/association-of-obesity-diabetes-and-risk-of-tuberculosis-two-population-based-cohorts
#3
Hsien-Ho Lin, Chieh-Yin Wu, Chih-Hui Wang, Han Fu, Knut Lonnroth, Yi-Cheng Chang, Yen-Tsung Huang
Background: Mounting data has revealed that body mass index (BMI) is inversely associated with risk of active tuberculosis. The inverse association presents a "paradox" with regard to diabetes, since obesity is a major determinant of diabetes, and diabetes is a well-known risk factor for tuberculosis. Methods: We conducted two population-based cohort studies involving 167,392 participants. The main exposure was BMI and diabetes ascertained at baseline. Occurrence of incident tuberculosis was ascertained from the national Tuberculosis Registry...
September 26, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/29028986/a-new-haplotype-block-detection-method-for-dense-genome-sequencing-data-based-on-interval-graph-modeling-of-clusters-of-highly-correlated-snps
#4
Sun Ah Kim, Chang-Sung Cho, Suh-Ryung Kim, Shelley B Bull, Yun Joo Yoo
Motivation: Linkage disequilibrium (LD) block construction is required for research in population genetics and genetic epidemiology, including specification of sets of single nucleotide polymorphisms (SNPs) for analysis of multi-SNP based association and identification of haplotype blocks in high density sequencing data. Existing methods based on a narrow sense definition do not allow intermediate regions of low LD between strongly associated SNP pairs and tend to split high density SNP data into small blocks having high between-block correlation...
September 29, 2017: Bioinformatics
https://www.readbyqxmd.com/read/29028448/characterization-of-the-stool-microbiome-in-hispanic-preschool-children-by-weight-status-and-time
#5
Emily B Hollister, Byron A Foster, Mahmoud Dahdouli, Jesica Ramirez, Zhao Lai
BACKGROUND: Variations in gut microbiota composition and diversity have been associated with childhood adiposity, although most studies describing this have been cross-sectional in nature. Our objective was to evaluate associations between body weight and the gut microbiota over time in obese preschool-age children. METHODS: Obese, preschool-age, Hispanic children provided stool samples at baseline and following a 6-month behavioral intervention. Normal-weight (NW) children also provided stool samples...
October 13, 2017: Childhood Obesity
https://www.readbyqxmd.com/read/29028139/birthweight-discordance-and-neonatal-morbidity-in-twin-pregnancies-analysis-of-the-stork-multiple-pregnancy-cohort
#6
Francesco D'Antonio, Basky Thilaganathan, Arianna Laoreti, Asma Khalil
OBJECTIVES: The main aim of this study was to investigate the relationship between weight discordance and neonatal morbidity in twin pregnancies progressing beyond 34 weeks of gestation. The secondary aim was to determine the predictive accuracy of different weight discordant cut-offs in predicting neonatal morbidity in twin pregnancies. METHODS: This was a retrospective multicentre cohort study of all twin pregnancies booked for antenatal care in four hospitals in the Southwest Thames region of London Obstetric Research Collaborative (STORK) over a period of ten years...
October 13, 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/29027705/effects-of-dietary-supplementation-of-spices-on-forage-degradability-ruminal-fermentation-in-vivo-digestibility-growth-performance-and-nitrogen-balance-in-black-bengal-goat
#7
M R Chowdhury, M M H Khan, S U Mahfuz, M A Baset
The objective of the study was to evaluate the effects of spices on forage utilization and nitrogen (N) emission using in vitro and in vivo approach. A 6 × 5 factorial triplicate arrangement was used to assess the in vitro degradability of rice straw with control (without spices) and individual (40 mg/g rice straw) spices (cumin, coriander, clove, black cumin, turmeric) at five different incubation times. In vitro dry matter (DM) and organic matter (OM) degradability of rice straw were highest in presence of spices except for clove...
October 13, 2017: Journal of Animal Physiology and Animal Nutrition
https://www.readbyqxmd.com/read/29027509/multiply-adjusted-comparisons-a-meta-analysis-method-to-compare-single-arm-clinical-trial-data-to-literature-results-regarding-a-competitor
#8
Dietmar Boethig, Hartmut Hecker
Prospective randomized controlled trials are difficult to obtain if a promising new therapy has to be tested against seemingly obsolete alternatives. One method to address this problem is to compare the results of (multicentre) trials to literature results. However, previous treatment-era changes and population-dependent results complicate objective comparisons. The presented approach describes a method to objectify such comparisons in cases in which individual raw data regarding a new therapy have to be compared to summary results regarding a conventional alternative published in the literature...
January 1, 2017: Statistical Methods in Medical Research
https://www.readbyqxmd.com/read/29027481/narrowing-urban-suburban-rural-disparities-in-physical-growth-among-children-in-china-findings-from-the-5th-national-survey-in-2015
#9
Xinnan Zong, Hui Li, Ya-Qin Zhang, Huahong Wu
BACKGROUND: Previous studies have reported a narrowing tendency in urban-suburban rural differences for height, but almost no tendency of narrowing for weight in Chinese children between 1975-2005. AIM: To examine urban-suburban rural disparities for both height and weight in a recent 10-year period. SUBJECTS AND METHODS: A representative sample of 161,643 children under 7 years old was obtained from the 5th national survey conducted in urban and suburban rural areas of the nine cities in China in 2015...
November 2017: Annals of Human Biology
https://www.readbyqxmd.com/read/29027206/low-grade-gastrointestinal-lymphoma-in-dogs-20-cases-2010-to-2016
#10
J Lane, J Price, A Moore, J R S Dandrieux, C Clifford, K Curran, K Choy, C Cannon
OBJECTIVES: To report the clinical presentation, treatment and prognosis of dogs with low-grade gastrointestinal lymphoma. MATERIALS AND METHODS: Cases were solicited from the American College of Veterinary Internal Medicine Oncology Diplomate listserv. Medical records of dogs with low-grade gastrointestinal lymphoma diagnosed via a combination of histology and immunohistochemistry with or without analysis of polymerase chain reaction for antigen receptor rearrangement were included...
October 13, 2017: Journal of Small Animal Practice
https://www.readbyqxmd.com/read/29027084/association-of-light-to-moderate-alcohol-drinking-in-pregnancy-with-preterm-birth-and-birth-weight-elucidating-bias-by-pooling-data-from-nine-european-cohorts
#11
Katrine Strandberg-Larsen, Gry Poulsen, Bodil Hammer Bech, Leda Chatzi, Sylvaine Cordier, Maria Teresa Grønning Dale, Marieta Fernandez, Tine Brink Henriksen, Vincent Wv Jaddoe, Manolis Kogevinas, Claudia J Kruithof, Morten Søndergaard Lindhard, Per Magnus, Ellen Aagaard Nohr, Lorenzo Richiardi, Clara L Rodriguez-Bernal, Florence Rouget, Franca Rusconi, Martine Vrijheid, Anne-Marie Nybo Andersen
Women who drink light-to-moderately during pregnancy have been observed to have lower risk of unfavourable pregnancy outcomes than abstainers. This has been suggested to be a result of bias. In a pooled sample, including 193 747 live-born singletons from nine European cohorts, we examined the associations between light-to-moderate drinking and preterm birth, birth weight, and small-for-gestational age in term born children (term SGA). To address potential sources of bias, we compared the associations from the total sample with a sub-sample restricted to first-time pregnant women who conceived within six months of trying, and examined whether the associations varied across calendar time...
October 12, 2017: European Journal of Epidemiology
https://www.readbyqxmd.com/read/29027051/cell-response-of-flexible-pmma-derivatives-supremacy-of-surface-chemistry-over-substrate-stiffness
#12
Elke Van De Walle, Ine Van Nieuwenhove, Winnok De Vos, Heidi Declercq, Peter Dubruel, Sandra Van Vlierberghe
The present work reports on the development of a range of poly(methyl methacrylate)/poly(ethylene glycol) (PMMAPEG)-based materials, characterized by different elasticity moduli in order to study the influence of the substrate's mechanical properties on the response of human umbilical vein endothelial cells (HUVECs). To render the selected materials cell-interactive, a polydopamine (PDA)/gelatin type B (Gel B) coating was applied. Prior to the in vitro assay, the success of the PDA and Gel B immobilization onto the materials was confirmed using X-ray photoelectron spectroscopy (XPS) as reflected by the nitrogen percentages measured for the materials after PDA and Gel B deposition...
October 12, 2017: Journal of Materials Science. Materials in Medicine
https://www.readbyqxmd.com/read/29026216/associations-of-maternal-and-cord-blood-adipokines-with-offspring-adiposity-in-project-viva-is-there-an-interaction-with-child-age
#13
L-J Li, S L Rifas-Shiman, I M Aris, J G Young, C Mantzoros, M-F Hivert, E Oken
OBJECTIVES: Higher leptin and lower adiponectin correlate with adult and childhood adiposity, but it is unclear how exposure to these adipokines during gestation relates to offspring growth. We aimed to investigate the relationships of maternal and cord adipokines with offspring adiposity across childhood to early adolescence, as well as interactions with child age. METHODS: In mother-child pairs in the Project Viva cohort, we measured adipokines in mothers at 2nd trimester (n=1106) and in cord blood at birth (n=657)...
October 13, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/29025846/cohort-profile-for-the-mastermind-study-using-the-clinical-practice-research-datalink-cprd-to-investigate-stratification-of-response-to-treatment-in-patients-with-type-2-diabetes
#14
Lauren R Rodgers, Michael N Weedon, William E Henley, Andrew T Hattersley, Beverley M Shields
PURPOSE: This is a retrospective cohort study using observational data from anonymised primary care records. We identify and extract all patients with type 2 diabetes and associated clinical data from the Clinical Practice Research Datalink (CPRD) to inform models of disease progression and stratification of treatment. PARTICIPANTS: Data were extracted from CPRD on 8 August 2016. The initial data set contained all patients (n=313 485) in the database who had received a type 2 diabetes medication...
October 12, 2017: BMJ Open
https://www.readbyqxmd.com/read/29025732/rack1-maintains-intestinal-homeostasis-by-protecting-the-integrity-of-the-epithelial-barrier
#15
Zhuan-Fen Cheng, Christine A Cartwright
Previously we generated mouse models of Rack1 deficiency to identify key functions for Rack1 in regulating growth of intestinal epithelia: suppressing crypt cell proliferation and regeneration, promoting differentiation and apoptosis, and repressing development of neoplasia. However, other than low body weight, we did not detect an overt phenotype in mice constitutively deleted of Rack1 in intestinal epithelia (vil-Cre:Rack1(fl/fl) mice), presumably because Rack1 was deleted in < 10% of the total surface area of the epithelia...
October 12, 2017: American Journal of Physiology. Gastrointestinal and Liver Physiology
https://www.readbyqxmd.com/read/29025697/predicting-consumer-effort-in-finding-and-paying-for-health-care-expert-interviews-and-claims-data-analysis
#16
Sandra Long, Karen A Monsen, David Pieczkiewicz, Julian Wolfson, Saif Khairat
BACKGROUND: For consumers to accept and use a health care information system, it must be easy to use, and the consumer must perceive it as being free from effort. Finding health care providers and paying for care are tasks that must be done to access treatment. These tasks require effort on the part of the consumer and can be frustrating when the goal of the consumer is primarily to receive treatments for better health. OBJECTIVE: The aim of this study was to determine the factors that result in consumer effort when finding accessible health care...
October 12, 2017: JMIR Medical Informatics
https://www.readbyqxmd.com/read/29025506/maintenance-of-lifestyle-changes-at-12-month-follow-up-in-a-nutrition-and-physical-activity-trial-for-cancer-survivors
#17
Fiona G Stacey, David R Lubans, Kathy Chapman, Alessandra Bisquera, Erica L James
OBJECTIVES: In this paper, we report maintenance of behavior change in a nutrition and physical activity intervention for cancer survivors at 12-months follow-up. METHODS: The ENRICH (Exercise and Nutrition Routine Improving Cancer Health) program was an 8-week face-to-face program for cancer survivors and caregivers, focused on healthy eating, healthy weight, resistance training, and a walking program. Randomized controlled trial participants completed a survey and 7-days of pedometry at baseline, 8-weeks, and 20-weeks...
November 1, 2017: American Journal of Health Behavior
https://www.readbyqxmd.com/read/29025486/using-15-dhs-surveys-to-study-epidemiological-correlates-of-tb-courtesy-stigma-and-health-seeking-behaviour
#18
E J J Rood, C Mergenthaler, M I Bakker, L Redwood, E M H Mitchell
SETTING: Tuberculosis (TB) stigma is thought to delay or prevent the decision to seek health care, but the strength of this association and the prevalence of anticipated TB stigma in the general population in most countries is unknown. OBJECTIVE: To examine epidemiological, cultural and sociodemographic factors associated with TB courtesy stigma in 15 surveys across 13 countries, and its link to health seeking for cough in children under five. DESIGN: A multilevel survey weighted logistic regression model was used to analyse how individual characteristics and social contexts affect the occurrence of TB courtesy stigma...
November 1, 2017: International Journal of Tuberculosis and Lung Disease
https://www.readbyqxmd.com/read/29025081/the-long-term-effects-of-early-oral-feeding-following-minimal-invasive-esophagectomy
#19
Gijs H K Berkelmans, Laura Fransen, Teus J Weijs, Merel Lubbers, Grard A P Nieuwenhuijzen, Jelle P Ruurda, Ewout A Kouwenhoven, Marc J van Det, Camiel Rosman, Richard van Hillegersberg, Misha D P Luyer
A nil-by-mouth regime with enteral nutrition via an artificial route is frequently applied following esophagectomy. However, early initiation of oral feeding could potentially improve recovery and has shown to be beneficial in many types of abdominal surgery. Although short-term nutritional safety of oral intake after an esophagectomy has been documented, long-term effects of this feeding regimen are unknown. In this cohort study data from patients undergoing minimal invasive Ivor-Lewis esophagectomy between 04-2012 and 09-2015 in three centers in The Netherlands were collected...
August 31, 2017: Diseases of the Esophagus: Official Journal of the International Society for Diseases of the Esophagus
https://www.readbyqxmd.com/read/29024780/toxicogenomics-of-the-flame-retardant-tris-2-butoxyethyl-phosphate-in-hepg2-cells-using-rna-seq
#20
Boris V Krivoshiev, Gerrit T S Beemster, Katrien Sprangers, Bart Cuypers, Kris Laukens, Ronny Blust, Steven J Husson
Tris (2-butoxyethyl) phosphate (TBOEP) is a compound produced at high volume that is used as both a flame retardant and a plasticizer. It is persistent and bioaccumulative, yet little is known of its toxicological modes of action. Such insight may aid risk assessment in a weight-of-evidence approach supplementing current testing strategies. We used an RNA sequencing approach as an unbiased and sensitive tool to explore potential negative health effects of sub-cytotoxic concentrations of TBOEP on the transcriptome of the human liver hepatocellular carcinoma cell line, HepG2, with the lowest concentration used potentially holding relevance to human physiological levels...
October 9, 2017: Toxicology in Vitro: An International Journal Published in Association with BIBRA
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