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https://www.readbyqxmd.com/read/28431389/prediction-of-size-fractionated-airborne-particle-bound-metals-using-mlr-bp-ann-and-svm-analyses
#1
Xiang'zi Leng, Jinhua Wang, Haibo Ji, Qin'geng Wang, Huiming Li, Xin Qian, Fengying Li, Meng Yang
Size-fractionated heavy metal concentrations were observed in airborne particulate matter (PM) samples collected from 2014 to 2015 (spanning all four seasons) from suburban (Xianlin) and industrial (Pukou) areas in Nanjing, a megacity of southeast China. Rapid prediction models of size-fractionated metals were established based on multiple linear regression (MLR), back propagation artificial neural network (BP-ANN) and support vector machine (SVM) by using meteorological factors and PM concentrations as input parameters...
April 6, 2017: Chemosphere
https://www.readbyqxmd.com/read/28431349/impacts-of-environmental-factors-on-arsenate-biotransformation-and-release-in-microcystis-aeruginosa-using-the-taguchi-experimental-design-approach
#2
Zhenhong Wang, Zhuanxi Luo, Changzhou Yan, Baoshan Xing
Very limited information is available on how and to what extent environmental factors influence arsenic (As) biotransformation and release in freshwater algae. These factors include concentrations of arsenate (As(V)), dissolved inorganic nitrogen (N), phosphate (P), and ambient pH. This study conducted a series of experiments using Taguchi methods to determine optimum conditions for As biotransformation. We assessed principal effective factors of As(V), N, P, and pH and determined that As biotransformation and release actuate at 10...
April 18, 2017: Water Research
https://www.readbyqxmd.com/read/28431311/the-low-lying-electronic-states-and-optical-schemes-for-the-laser-cooling-of-the-bh-and-bh-ions
#3
Qing-Qing Zhang, Chuan-Lu Yang, Mei-Shan Wang, Xiao-Guang Ma, Wen-Wang Liu
The potential energy curves and transition dipole moments for the 1(2)Σ(+), 2(2)Σ(+), 1(2)Π and 2(2)Π electronic states of the two molecules are calculated using multi-reference configuration interaction and the large basis sets aug-cc-pwCV5Z. Based on the obtained potential energy curves, the rotational and vibrational energy levels of the states are obtained by solving the Schrödinger equation of nuclear motion, and the spectroscopic parameters are then obtained by fitting the energy levels to Dunham series expansions...
April 9, 2017: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
https://www.readbyqxmd.com/read/28431138/cardiovascular-outcome-trials-in-patients-with-chronic-kidney-disease-challenges-associated-with-selection-of-patients-and-endpoints
#4
Patrick Rossignol, Rajiv Agarwal, Bernard Canaud, Alan Charney, Gilles Chatellier, Jonathan C Craig, William C Cushman, Ronald T Gansevoort, Bengt Fellström, Dahlia Garza, Nicolas Guzman, Frank A Holtkamp, Gerard M London, Ziad A Massy, Alexandre Mebazaa, Peter G M Mol, Marc A Pfeffer, Yves Rosenberg, Luis M Ruilope, Jonathan Seltzer, Amil M Shah, Salim Shah, Bhupinder Singh, Bergur V Stefánsson, Norman Stockbridge, Wendy Gattis Stough, Kristian Thygesen, Michael Walsh, Christoph Wanner, David G Warnock, Christopher S Wilcox, Janet Wittes, Bertram Pitt, Aliza Thompson, Faiez Zannad
Although cardiovascular disease is a major health burden for patients with chronic kidney disease, most cardiovascular outcome trials have excluded patients with advanced chronic kidney disease. Moreover, the major cardiovascular outcome trials that have been conducted in patients with end-stage renal disease have not demonstrated a treatment benefit. Thus, clinicians have limited evidence to guide the management of cardiovascular disease in patients with chronic kidney disease, particularly those on dialysis...
April 18, 2017: European Heart Journal
https://www.readbyqxmd.com/read/28431099/effect-of-cold-water-induced-stress-on-immune-response-pathology-and-fertility-in-mice-during-chlamydia-muridarum-genital-infection
#5
Tesfaye Belay, Anthony Woart, Vincent Graffeo
Genital infection by Chlamydia trachomatis (CT) is the most common bacterial sexually-transmitted disease worldwide. It causes serious reproductive health complications, including pelvic inflammatory disease and infertility. Stress is implicated as a risk factor for various infections; however, its effect on chlamydia genital infection is unknown. We previously showed that repeated exposure of mice to cold water results in increased severity of chlamydia genital infection. In the present study, cold water-induced stress resulted in: i) elevated levels of NE and EP in the spleen and genital tract of stressed mice; ii) elevated IL-1β, TNF-α, IL-6 and NO production in macrophage-rich peritoneal cells of mice; iii) supplement of NE in vitro exerts an immunosuppressive effect on splenic T cell production of cytokines; iv) decreased C...
April 18, 2017: Pathogens and Disease
https://www.readbyqxmd.com/read/28431094/incidence-of-broiler-breast-myopathies-at-2-different-ages-and-its-impact-on-selected-raw-meat-quality-parameters
#6
V A Kuttappan, C M Owens, C Coon, B M Hargis, M Vazquez-Añon
White striping (WS) and woody breast (WB) are 2 poultry meat quality defects that affect the acceptance of raw breast fillets as well as properties of cooked and further processed products. The present study was intended to evaluate the incidence of these conditions in broilers at different ages and to compare the properties of fillets with different degrees of WS and WB. For this study, 1,920 birds were processed, at 6 and 9 wk of age, in a standard commercial inline processing system. After chilling, carcasses were deboned and butterfly fillets were collected and weighed...
April 18, 2017: Poultry Science
https://www.readbyqxmd.com/read/28431059/cardiac-structural-and-functional-profile-of-patients-with-delayed-qrs-transition-zone-and-sudden-cardiac-death
#7
Aapo L Aro, Derek Phan, Carmen Teodorescu, Audrey Uy-Evanado, Kyndaron Reinier, Karen Gunson, Jonathan Jui, Heikki V Huikuri, Sumeet S Chugh
Aims: Delayed QRS transition zone in the precordial leads of the 12-lead electrocardiogram (ECG) has been recently associated with increased risk of sudden cardiac death (SCD), but the underlying mechanisms are unknown. We correlated echocardiographic findings with ECG and clinical characteristics to investigate how alterations in cardiac structure and function contribute to this risk marker. Methods and Results: From the ongoing population-based Oregon Sudden Unexpected Death Study (catchment population ∼1 million), SCD cases with prior ECG available (n = 627) were compared with controls (n = 801)...
April 1, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28431005/occupational-asthma-caused-by-acrylic-compounds-from-shield-surveillance-1989-2014
#8
G I Walters, A S Robertson, V C Moore, P S Burge
Background: Acrylic monomers (acrylates), methacrylates and cyanoacrylates all cause asthma by respiratory sensitization. Occupational inhalation exposures occur across a variety of industries including health care and dental work, beauty, laboratory science, assembly and plastic moulding. Aims: To examine notifications of occupational asthma caused by acrylic compounds from a UK-based regional surveillance scheme, in order to highlight prevalent exposures and trends in presentation...
April 20, 2017: Occupational Medicine
https://www.readbyqxmd.com/read/28430963/integrated-care-for-older-populations-and-its-implementation-facilitators-and-barriers-a-rapid-scoping-review
#9
Diane E Threapleton, Roger Y Chung, Samuel Y S Wong, Eliza Wong, Patsy Chau, Jean Woo, Vincent C H Chung, Eng-Kiong Yeoh
Purpose: Inform health system improvements by summarizing components of integrated care in older populations. Identify key implementation barriers and facilitators. Data sources: A scoping review was undertaken for evidence from MEDLINE, the Cochrane Library, organizational websites and internet searches. Eligible publications included reviews, reports, individual studies and policy documents published from 2005 to February 2017. Study selection: Initial eligible documents were reviews or reports concerning integrated care approaches in older/frail populations...
April 20, 2017: International Journal for Quality in Health Care
https://www.readbyqxmd.com/read/28430377/exploring-why-young-people-with-type%C3%A2-1-diabetes-decline-structured-education-with-a-view-to-overcoming-barriers
#10
V E Coates, G Horigan, M Davies, M T Davies
AIMS: To identify factors that influence lack of engagement of young adults with Type 1 diabetes (aged 13-21 years) with structured diabetes education (SDE) to inform and broaden the reach of future SDE. METHODS: A quantitative, cross-sectional survey was undertaken of 227 young people with Type 1 diabetes drawn from 11 health trusts across Northern Ireland and England, deemed to be representative of the wider population. Participants were asked to complete a questionnaire exploring non-attendance, along with the Diabetes Care Profile, the Diabetes Empowerment Scale (Short Form), the Diabetes Knowledge Test and the 12-item General Health Questionnaire...
April 21, 2017: Diabetic Medicine: a Journal of the British Diabetic Association
https://www.readbyqxmd.com/read/28429845/following-nature-s-roadmap-folding-factors-from-plasma-cells-led-to-improvements-in-antibody-secretion-in-s-cerevisiae
#11
Essi V Koskela, Jorg C de Ruijter, Alexander D Frey
Therapeutic protein production in yeast is a reality in industry with an untapped potential to expand to more complex proteins, such as full-length antibodies. Despite multiple numerous engineering approaches, cellular limitations are preventing the use of Saccharomyces cerevisiae as the titers of recombinant antibodies are currently not competitive. Instead of a host specific approach, we demonstrate the possibility of adopting the features from native producers of antibodies, plasma cells, to improve antibody production in yeast...
April 21, 2017: Biotechnology Journal
https://www.readbyqxmd.com/read/28429751/preclinical-study-of-raav2-strail-pharmaceutical-efficacy-biodistribution-and-safety-in-animals
#12
Q Ru, W Li, X Wang, S Zhang, L Chen, Y Zhang, Y Ge, Y Zu, Y Liu, D Zheng
The recombinant sTRAIL has been in clinical trial for various human malignancies. However, the half-life time of sTRAIL is very short, which might be an important factor influencing its clinical efficacy for cancer therapy. We previously reported the recombinant adeno-associated virus (AAV)-encoding sTRAIL95-281-mediated sTRAIL expression in vivo up to 8 months and suppressed tumor growth markedly in mouse xenografts. In the present study, we further evaluated the clinical potency for cancer gene therapy and the safety in mouse and non-human primates...
April 21, 2017: Cancer Gene Therapy
https://www.readbyqxmd.com/read/28429592/peptide-retention-time-prediction-in-hydrophilic-interaction-liquid-chromatography-data-collection-methods-and-features-of-additive-and-sequence-specific-models
#13
Oleg V Krokhin, Peyman Ezzati, Vic Spicer
The development of a peptide retention prediction model for hydrophilic interaction liquid chromatography (XBridge Amide column) is described for a collection of ~40,000 tryptic peptides. Off-line 2D LC-MS/MS analysis (HILIC-RPLC) of S. cerevisiae whole cell lysate has been used to acquire retention information for a HILIC separation. The large size of the optimization dataset (more than two orders of magnitude compared to previous reports) permits the accurate assignment of hydrophilic retention coefficients of individual amino acids, establishing both, the effects of amino-acid position relative to peptide termini and the influence of peptide secondary structure in HILIC...
April 21, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28429582/obesity-and-addiction-can-a-complication-of-surgery-help-us-understand-the-connection
#14
REVIEW
V Ivezaj, L E Stoeckel, N M Avena, S C Benoit, A Conason, J F Davis, A N Gearhardt, R Goldman, J E Mitchell, C N Ochner, K K Saules, K J Steffen, E Stice, S Sogg
Obesity is a multifactorial, chronic disease that has proven difficult to treat. An increased understanding of aetiological mechanisms is critical to the development of more effective obesity prevention and treatment strategies. A growing body of empirical evidence has demonstrated parallels between obesity, overeating and substance abuse, including shared behavioural, psychological and neurophysiological factors implicated in the excessive intake of both food and substances of abuse. Several different lines of research have recently emerged that hold the potential to shed light on the connection between obesity, food reward and addiction, with studies examining changes in alcohol use/misuse after weight loss surgery providing a particularly interesting perspective on these interrelationships...
April 21, 2017: Obesity Reviews: An Official Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28429571/melatonin-antagonizes-interleukin-18-mediated-inhibition-on-neural-stem-cell-proliferation-and-differentiation
#15
Zheng Li, Xingye Li, Matthew T V Chan, William Ka Kei Wu, DunXian Tan, Jianxiong Shen
Neural stem cells (NSCs) are self-renewing, pluripotent and undifferentiated cells which have the potential to differentiate into neurons, oligodendrocytes and astrocytes. NSC therapy for tissue regeneration, thus, gains popularity. However, the low survivals rate of the transplanted cell impedes its utilities. In this study, we tested whether melatonin, a potent antioxidant, could promote the NSC proliferation and neuronal differentiation, especially, in the presence of the pro-inflammatory cytokine interleukin-18 (IL-18)...
April 21, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28429366/analysis-of-transcriptional-activities-of-angiogenic-biomarkers-during-intrauterine-complications-leading-to-preterm-birth
#16
M Rabajdová, R Dudič, P Urban, V Dudičová, P Urdzík, M Mareková
OBJECTIVE: Pre-eclampsia, growth retardation and preterm delivery are the most common reasons leading to increased maternal and perinatal mortality. The increased expression of hypoxia induced factors, such as HIF-1, triggers the overexpression of anti-angiogenic genes. The aim of this study was to determine the transcriptional activity of individual pro- and anti-angiogenic markers (VEGF, HIF-1, sEng, Flt-1, PlGF-1) in maternal blood samples from patients with spontaneous preterm labor, preterm labor in combination with pre-eclampsia and fetal growth restriction in comparison with physiologically terminated pregnancies...
April 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28429219/effects-of-different-modes-of-hypobaric-hypoxia-on-the-content-of-epigenetic-factors-in-the-rat-in-neurons-of-rat-neocortex
#17
M O Samoilov, A V Churilova, T S Glushchenko, E A Rybnikova
We studied the effects of different modes of hypobaric hypoxia on the content of epigenetic factors acH3K24, meH3K9, and meDNA modulating conformational characteristics of chromatin and gene expression in neurons of associative complex of rat parietal neocortex. Severe destructive hypoxia dramatically reduced the level of acH3K24 in 3 h after the end of exposure and increased meH3K9 and meDNA content. By contrast, 3-fold (but not single) adaptive exposure to moderate hypobaric hypoxia that produced a neuroprotective effect enhanced neuronal acH3K24 expression and decreased both meH3K9 and meDNA levels...
April 21, 2017: Bulletin of Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28429190/study-on-environmental-indices-and-heat-tolerance-tests-in-hair-sheep
#18
L Seixas, C B de Melo, A M Menezes, A F Ramos, G R Paludo, V Peripolli, C B Tanure, J B G Costa Junior, C McManus
The ability to predict the effects of climatic factors on animals and their adaptability is important for livestock production. The aim of the present study was to analyze whether existing indices are suitable for evaluating heat stress in Santa Ines and Morada Nova sheep, which are locally adapted hair sheep breeds from northeastern Brazil, and if the limits used to classify thermal stress are suitable for these breeds. Therefore, climatic, physiological, and physical parameters, as well as thermographic images, were collected in 26 sheep, 1 1/2 years old, from two genetic groups (Santa Ines 12 males and 4 females; Morada Nov...
April 20, 2017: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/28429100/conversion-of-hormone-and-her-2-receptor-in-metachronous-neck-metastases-from-breast-carcinoma
#19
Andreas Nauroth, Matthias Kalder, Marion Rössler, Gunnar Wichmann, Andreas Dietz, Susanne Wiegand
PURPOSE: Metastases are a common event in breast cancer. The expression of estrogen receptor (ER), progesterone receptor (PR) and human epidermal growth factor receptor 2 (HER-2) is essential for therapy and prognosis, and their conversion during disease progression potentially affects the treatment regimen. The aim was to analyze the estrogen, progesterone and HER-2 receptor expression in primary tumors and metachronous neck metastases from patients with breast cancer. METHODS: A retrospective analysis of 27 patients with breast cancer and metachronous neck metastasis was performed...
April 20, 2017: Journal of Cancer Research and Clinical Oncology
https://www.readbyqxmd.com/read/28428699/putative-role-of-cardio-metabolic-risk-among-poorly-controlled-asthmatics-in-south-indian-population
#20
Murugaiyan Sathish Babu, K P Sreesoorya, Surendra K Menon, Subiman Saha, A R Srinivasan, S Arul Vijaya Vani, R Reeta, V Kuzhandai Velu
Mortality and morbidity attributed to asthma remains to be the biggest nightmare worldwide. Hence, the study was aimed to compare the cardio metabolic risk factors as assessed by Body mass index (BMI), waist hip ratio (WHR), serum triacylglycerol and uric acid in well controlled and poorly controlled asthmatics and to correlate these parameters with the severity of asthma. A case control study was conducted on 90 subjects who were segregated into well controlled asthmatics (n = 30) and poorly controlled asthmatics (n = 30) who were diagnosed based on Global initiative for Asthma management guidelines and healthy volunteers (n = 30)...
June 2017: Indian Journal of Clinical Biochemistry: IJCB
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