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https://www.readbyqxmd.com/read/28821636/twenty-four-hour-rhythmicity-of-circulating-metabolites-effect-of-body-mass-and-type-2-diabetes
#1
Cheryl M Isherwood, Daan R Van der Veen, Jonathan D Johnston, Debra J Skene
Metabolic profiling of individuals with type 2 diabetes mellitus (T2DM) has previously been limited to single-time-point samples, ignoring time-of-day variation. Here, we tested our hypothesis that body mass and T2DM affect daily rhythmicity and concentrations of circulating metabolites across a 24-h day in 3 age-matched, male groups-lean, overweight/obese (OW/OB), and OW/OB with T2DM-in controlled laboratory conditions, which were not confounded by large meals. By using targeted liquid chromatography/mass spectrometry metabolomics, we quantified 130 plasma metabolites every 2 h over 24 h, and we show that average metabolite concentrations were significantly altered by increased body mass (90 of 130) and T2DM (56 of 130)...
August 18, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28818812/airborne-ultrafine-particles-in-a-pacific-island-country-characteristics-sources-and-implications-for-human-exposure
#2
C F Isley, P F Nelson, M P Taylor, M Mazaheri, L Morawska, A J Atanacio, E Stelcer, D D Cohen, Anthony L Morrison
The Pacific Islands carry a perception of having clean air, yet emissions from transport and burning activities are of concern in regard to air quality and health. Ultrafine particle number concentrations (PNCs), one of the best metrics to demonstrate combustion emissions, have not been measured either in Suva or elsewhere in the Islands. This work provides insight into PNC variation across Suva and its relationship with particle mass (PM) concentration and composition. Measurements over a short monitoring campaign provide a vignette of conditions in Suva...
August 14, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28818627/cross-sectional-analysis-of-the-association-between-bedtime-and-malaria-exposure-in-the-ouest-and-sud-est-departments-of-haiti
#3
Caroline J Stephenson, Matthew E Rossheim, Cara L Frankenfeld, Jacques Boncy, Bernard O Okech, Michael E von Fricken
INTRODUCTION: The governments of Haiti and the Dominican Republic have a binational agreement to work towards malaria elimination for the island of Hispaniola by the year 2020. Understanding malaria-related knowledge and behaviors can help inform elimination efforts. This study examined the association between social-behavioral factors, like bedtime and bed net ownership, with malaria seroconversion status among people in the Ouest and Sud-Est departments of Haiti. METHODS: In 2013, cross-sectional survey data (n=377) and blood samples were collected from a convenience sample of individuals within community, clinic and school settings...
August 14, 2017: Acta Tropica
https://www.readbyqxmd.com/read/28818510/breathing-mode-influence-on-craniofacial-development-and-head-posture
#4
Annel Chambi-Rocha, Maria Eugenia Cabrera-Domínguez, Antonia Domínguez-Reyes
OBJECTIVE: The incidence of abnormal breathing and its consequences on craniofacial development is increasing, and is not limited to children with adenoid faces. The objective of this study was to evaluate the cephalometric differences in craniofacial structures and head posture between nasal breathing (NB) and oral breathing (OB) children and teenagers with a normal facial growth pattern. METHOD: Ninety-eight 7-16 year-old patients with a normal facial growth pattern were clinically and radiographically evaluated...
August 14, 2017: Jornal de Pediatria
https://www.readbyqxmd.com/read/28817675/deaths-during-tuberculosis-treatment-among-paediatric-patients-in-a-large-tertiary-hospital-in-nigeria
#5
Aishatu L Adamu, Muktar H Aliyu, Najiba Aliyu Galadanci, Baba Maiyaki Musa, Muktar A Gadanya, Auwalu U Gajida, Taiwo G Amole, Imam W Bello, Safiya Gambo, Ibrahim Abubakar
BACKGROUND: Despite availability of effective cure, tuberculosis (TB) remains a leading cause of death in children. In many high-burden countries, childhood TB is underdiagnosed and underreported, and care is often accessed too late, resulting in adverse treatment outcomes. In this study, we examined the time to death and its associated factors among a cohort of children that commenced TB treatment in a large treatment centre in northern Nigeria. METHODS: This is a retrospective cohort study of children that started TB treatment between 2010 and 2014...
2017: PloS One
https://www.readbyqxmd.com/read/28815523/endoplasmic-reticulum-plasma-membrane-crosstalk-mediated-by-the-extended-synaptotagmins
#6
Yasunori Saheki
The endoplasmic reticulum (ER) possesses multiplicity of functions including protein synthesis, membrane lipid biogenesis, and Ca(2+) storage and has broad localization throughout the cell. While the ER and most other membranous organelles are highly interconnected via vesicular traffic that relies on membrane budding and fusion reactions, the ER forms direct contacts with virtually all other membranous organelles, including the plasma membrane (PM), without membrane fusion. Growing evidence suggests that these contacts play major roles in cellular physiology, including the regulation of Ca(2+) homeostasis and signaling and control of cellular lipid homeostasis...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28814393/soya-maize-and-sorghum-based-ready-to-use-therapeutic-food-with-amino-acid-is-as-efficacious-as-the-standard-milk-and-peanut-paste-based-formulation-for-the-treatment-of-severe-acute-malnutrition-in-children-a-noninferiority-individually-randomized-controlled
#7
Paluku Bahwere, Peter Akomo, Mwawi Mwale, Hitoshi Murakami, Chrissy Banda, Sylvester Kathumba, Chimwemwe Banda, Solomon Jere, Kate Sadler, Steve Collins
Background: Development of more cost-effective ready-to-use therapeutic food (RUTF) is a global public health priority. To date, previous lower-cost recipes have been less effective than the standard peanut and milk (PM)-based RUTF, particularly in children aged <24 mo.Objective: We aimed to compare the efficacy of the PM-RUTF to a milk-free soya, maize, and sorghum (FSMS)-RUTF enriched with crystalline amino acids without cow milk powder and a milk, soya, maize, and sorghum (MSMS)-RUTF containing 9.3% skim cow milk powder...
August 16, 2017: American Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28814096/ankle-block-vs-single-shot-popliteal-fossa-block-as-primary-anesthesia-for-forefoot-operative-procedures-prospective-randomized-comparison
#8
Oliver N Schipper, Kenneth J Hunt, Robert B Anderson, W Hodges Davis, Carroll P Jones, Bruce E Cohen
BACKGROUND: Postoperative pain is often difficult to control with oral medications, requiring large doses of opioid analgesia. Regional anesthesia may be used for primary anesthesia, reducing the need for general anesthetic and postoperative pain medication requirements in the immediate postoperative period. The purpose of this study was to compare the analgesic effects of an ankle block (AB) to a single-shot popliteal fossa block (PFB) for patients undergoing orthopedic forefoot procedures...
August 1, 2017: Foot & Ankle International
https://www.readbyqxmd.com/read/28811359/exercise-training-prevents-skeletal-muscle-plasma-membrane-cholesterol-accumulation-cortical-actin-filament-loss-and-insulin-resistance-in-c57bl-6j-mice-fed-a-western-style-high-fat-diet
#9
Ashley G Ambery, Lixuan Tackett, Brent A Penque, Joseph T Brozinick, Jeffrey S Elmendorf
Insulin action and glucose disposal are enhanced by exercise, yet the mechanisms involved remain imperfectly understood. While the causes of skeletal muscle insulin resistance also remain poorly understood, new evidence suggest excess plasma membrane (PM) cholesterol may contribute by damaging the cortical filamentous actin (F-actin) structure essential for GLUT4 glucose transporter redistribution to the PM upon insulin stimulation. Here, we investigated whether PM cholesterol toxicity was mitigated by exercise...
August 2017: Physiological Reports
https://www.readbyqxmd.com/read/28810687/the-characterization-of-polycyclic-aromatic-hydrocarbons-in-northeastern-us-trucking-terminals
#10
Erica D Walker, Jaime E Hart, Eric Garshick, Jennifer M Cavallari, Mary E Davis, Thomas J Smith, Francine Laden
In recent years, significant attention has been given to polycyclic aromatic hydrocarbons (PAHs) exposures given their mutagenic and carcinogenic properties. However, levels of exposure and the key determinants of exposure are not well defined for the trucking industry. We measured ultrafine particle characteristics at 10 trucking terminals of varying operating size and location in the Northeast region of the United States using particle concentration counter and a surface area analyzer. Multivariate mixed-effects linear regression models were used to assess determinants of the concentration of total bound PAHs (tPAH), the total aerosol active surface area (AS), and the ratio tPAH/AS overall and individually within docks, trucking cabs, and administrative offices...
August 1, 2017: Annals of Work Exposures and Health
https://www.readbyqxmd.com/read/28809935/effectiveness-of-a-brief-behavioural-intervention-on-psychological-distress-among-women-with-a-history-of-gender-based-violence-in-urban-kenya-a-randomised-clinical-trial
#11
Richard A Bryant, Alison Schafer, Katie S Dawson, Dorothy Anjuri, Caroline Mulili, Lincoln Ndogoni, Phiona Koyiet, Marit Sijbrandij, Jeannette Ulate, Melissa Harper Shehadeh, Dusan Hadzi-Pavlovic, Mark van Ommeren
BACKGROUND: Gender-based violence (GBV) represents a major cause of psychological morbidity worldwide, and particularly in low- and middle-income countries (LMICs). Although there are effective treatments for common mental disorders associated with GBV, they typically require lengthy treatment programs that may limit scaling up in LMICs. The aim of this study was to test the effectiveness of a new 5-session behavioural treatment called Problem Management Plus (PM+) that lay community workers can be taught to deliver...
August 2017: PLoS Medicine
https://www.readbyqxmd.com/read/28808144/particulate-matter-exposure-and-stress-hormone-levels-a-randomized-double-blind-crossover-trial-of-air-purification
#12
Huichu Li, Jing Cai, Renjie Chen, Zhuohui Zhao, Zhekang Ying, Lin Wang, Jianmin Chen, Ke Hao, Patrick L Kinney, Honglei Chen, Haidong Kan
BACKGROUND: Exposure to ambient particulate matter (PM) is associated with a number of adverse health outcomes, but potential mechanisms are largely unknown. Metabolomics represents a powerful approach to study global metabolic changes in response to environmental exposures. We therefore conducted this study to investigate changes in serum metabolites in response to the reduction of PM exposure among healthy college students. METHODS: We conducted a randomized, double-blind crossover trial in 55 healthy college students in Shanghai, China...
August 15, 2017: Circulation
https://www.readbyqxmd.com/read/28805889/oxytocin-injections-in-the-postpartal-period-affect-mammary-tight-junctions-in-sows
#13
C Farmer, M Lessard, C H Knight, H Quesnel
The potential impacts of injecting oxytocin (OXY) to sows in the early postpartum period on the quality of mammary tight junctions, milk composition, and immune status of sows and piglets were studied. Postparturient sows received i.m. injections of either saline (control [CTL]; = 10) or 75 IU of OXY ( = 10). Injections were given twice daily (0800 and 1630 h) starting on d 2 of lactation (i.e., between 12 and 20 h after birth of the last piglet), totaling 4 injections. Milk samples were obtained before the first injection (d 2 morning [AM]), before the second injection (d 2 afternoon [PM]), and on d 4 PM and d 5 PM...
August 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28805847/probing-nanoscale-functionalities-of-metal-organic-framework-nanocrystals
#14
Yao Sun, Zhigang Hu, Dan Zhao, Kaiyang Zeng
Experimental investigation of functional properties of metal-organic frameworks (MOFs) at nanoscale precision is challenging and rarely reported. In this study, we report the piezo- and ferroelectric properties of NUS-6 MOF nanocrystals using dual AC resonance tracking piezoresponse force microscopy and piezoresponse force spectroscopy for the first time. Both NUS-6-(Hf) and NUS-6-(Zr) nanocrystals displayed anomalous piezoelectricity with the calculated piezoelectric coefficient dzz constants of 2.0-3.5 pm V(-1) and 1...
August 14, 2017: Nanoscale
https://www.readbyqxmd.com/read/28803745/further-development-of-the-mronj-minipig-large-animal-model
#15
Sven Otto, Christoph Pautke, Olga Martin Jurado, Dirk Nehrbass, Martin J Stoddart, Michael Ehrenfeld, Stephan Zeiter
Medication-related osteonecrosis of the jaw (MRONJ) is a rare but serious and potentially severe side effect of antiresorptive therapy with bisphosphonates or denosumab. Recently, a large animal minipig MRONJ model was introduced which led to early necrotic lesions in the majority of extraction sites after bisphosphonate administration. The aim of this project was to modify the preoperative cumulative bisphosphonate dose (zoledronate) and hereby firstly to demonstrate the reliability and reproducibility of the established model...
July 18, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28802694/exposure-to-ambient-particulate-matter-is-associated-with-accelerated-functional-decline-in-idiopathic-pulmonary-fibrosis
#16
Christopher J Winterbottom, Rupal J Shah, Karen C Patterson, Maryl E Kreider, Reynold A Panettieri, Belinda Rivera-Lebron, Wallace T Miller, Leslie A Litzky, Trevor M Penning, Krista Heinlen, Tara Jackson, A Russell Localio, Jason D Christie
BACKGROUND: Idiopathic pulmonary fibrosis (IPF), a progressive disease with unknown pathogenesis, may in part be due to an abnormal response to injurious stimuli by alveolar epithelial cells. Air pollution and particulate matter inhalation evoke a wide variety of pulmonary and systemic inflammatory diseases. We therefore hypothesized that increased average ambient particulate matter (PM) concentrations would be associated with an accelerated rate of decline in forced vital capacity (FVC) in IPF...
August 9, 2017: Chest
https://www.readbyqxmd.com/read/28801832/simultaneous-measurement-of-total-estradiol-and-testosterone-in-human-serum-by-isotope-dilution-liquid-chromatography-tandem-mass-spectrometry
#17
Hui Zhou, Yuesong Wang, Matthew Gatcombe, Jacob Farris, Julianne C Botelho, Samuel P Caudill, Hubert W Vesper
Reliable measurement of total testosterone and estradiol is critical for their use as biomarkers of hormone-related disorders in patient care and translational research. We developed and validated a mass spectrometry method to simultaneously quantify these analytes in human serum without chemical derivatization. Serum is equilibrated with isotopic internal standards and treated with acidic buffer to release hormones from their binding proteins. Lipids are isolated and polar impurities are removed by two serial liquid-liquid extraction steps...
August 11, 2017: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/28801538/comparison-of-acute-thrombogenicity-for-metallic-and-polymeric-bioabsorbable-scaffolds-magmaris-versus-absorb-in-a-porcine-arteriovenous-shunt-model
#18
Ron Waksman, Michael J Lipinski, Eduardo Acampado, Qi Cheng, Lila Adams, Sho Torii, Jiaxiang Gai, Rebecca Torguson, David M Hellinga, Peter C Westman, Michael Joner, Philine Zumstein, Frank D Kolodgie, Renu Virmani
BACKGROUND: A comparison in acute thrombogenicity between the Magmaris sirolimus-eluting bioabsorbable magnesium scaffold and the Absorb bioresorbable vascular scaffold has not been performed. This study assessed acute thrombogenicity of Magmaris compared with Absorb and the Orsiro hybrid drug-eluting stent in a porcine arteriovenous shunt model. METHODS AND RESULTS: An ex vivo porcine carotid jugular arteriovenous shunt was established and connected to SYLGARD tubing containing the Magmaris, Absorb, and Orsiro scaffolds/stents and allowed to run in the shunt for a maximum of 1 hour...
August 2017: Circulation. Cardiovascular Interventions
https://www.readbyqxmd.com/read/28799600/zirconium-and-hafnium-complexes-bearing-pyrrolidine-derived-salalen-type-onno-ligands-and-their-application-for-ring-opening-polymerization-of-lactides
#19
Yu-Lai Duan, Zhi-Jian Hu, Bo-Qun Yang, Fei-Fei Ding, Wei Wang, Yong Huang, Ying Yang
The reactions of pyrrolidine derived salalen-type {ONNO} ligands (S)-L(1-3)-H2 with 1 equiv. M(O(i)Pr)4(HO(i)Pr) (M = Zr or Hf) in diethyl ether yielded complexes [L(1-3)M(O(i)Pr)2] (L = L(1), M = Zr (1); L = L(2), M = Zr (2), Hf (3); L = L(3), M = Zr (4), Hf (5)). All of these complexes were well characterized by NMR spectroscopy, elemental analyses and single-crystal X-ray analysis in the case of complexes 1 and 3-5. X-ray structural determination revealed that these complexes were analogous mononuclear species and had a similar structure in which the metal centers were six-coordinated to two oxygen atoms and two nitrogen atoms of one ligand and two oxygen atoms of two isopropoxy groups...
August 11, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/28794573/quantitative-assessment-of-pm2-5-sources-and-their-seasonal-variation-in-krakow
#20
Lucyna Samek, Z Stegowski, L Furman, K Styszko, K Szramowiat, J Fiedor
In industry areas of Poland such as Silesia or urban sites like Krakow and some other cities, the levels of pollutants frequently breach air quality standards. Particulate matter (PM) is the most important constituent of atmospheric pollution. Beginning on 1st February 2014 until 31st January 2015, the samples of fine particulate matter PM2.5 (aerodynamic diameter of particles less than or equal to 2.5 μm) were collected at a site in the south-eastern Krakow urban background area. During this period, 194 samples were taken...
2017: Water, Air, and Soil Pollution
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