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https://www.readbyqxmd.com/read/28734115/regularized-estimation-in-sparse-high-dimensional-multivariate-regression-with-application-to-a-dna-methylation-study
#1
Haixiang Zhang, Yinan Zheng, Grace Yoon, Zhou Zhang, Tao Gao, Brian Joyce, Wei Zhang, Joel Schwartz, Pantel Vokonas, Elena Colicino, Andrea Baccarelli, Lifang Hou, Lei Liu
In this article, we consider variable selection for correlated high dimensional DNA methylation markers as multivariate outcomes. A novel weighted square-root LASSO procedure is proposed to estimate the regression coefficient matrix. A key feature of this method is tuning-insensitivity, which greatly simplifies the computation by obviating cross validation for penalty parameter selection. A precision matrix obtained via the constrained ℓ1 minimization method is used to account for the within-subject correlation among multivariate outcomes...
July 26, 2017: Statistical Applications in Genetics and Molecular Biology
https://www.readbyqxmd.com/read/28726392/characterization-of-naphthenic-acids-and-other-dissolved-organics-in-natural-water-from-the-athabasca-oil-sands-region-canada
#2
Chenxing Sun, William Shotyk, Chad W Cuss, Mark W Donner, Jon Fennell, Muhammad Javed, Tommy Noernberg, Mark Poesch, Rick Pelletier, Nilo Sinnatamby, Tariq Siddique, Jonathan W Martin
With growth of the Canadian oil sands industry, concerns have been raised about possible seepage of toxic oil sands process-affected water (OSPW) into the Athabasca River (AR). A sampling campaign in fall 2015 was undertaken to monitor for anthropogenic seepage while also considering natural sources. Naphthenic acids (NAs) and thousands of bitumen-derived organics were characterized in surface water, groundwater, and OSPW using a highly sensitive online solid phase extraction-HPLC-Orbitrap method. Elevated NA concentrations and bitumen-derived organics were detected in McLean Creek (30...
July 20, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28726125/nitrogen-assimilation-in-denitrifier-bacillus-azotoformans-lmg-9581-t
#3
Yihua Sun, Paul De Vos, Anne Willems
Until recently, it has not been generally known that some bacteria can contain the gene inventory for both denitrification and dissimilatory nitrate (NO3(-))/nitrite (NO2(-)) reduction to ammonium (NH4(+)) (DNRA). Detailed studies of these microorganisms could shed light on the differentiating environmental drivers of both processes without interference of organism-specific variation. Genome analysis of Bacillus azotoformans LMG 9581(T) shows a remarkable redundancy of dissimilatory nitrogen reduction, with multiple copies of each denitrification gene as well as DNRA genes nrfAH, but a reduced capacity for nitrogen assimilation, with no nas operon nor amtB gene...
July 19, 2017: Antonie Van Leeuwenhoek
https://www.readbyqxmd.com/read/28724173/a-comparative-study-between-myo-inositol-and-metformin-in-the-treatment-of-insulin-resistant-women
#4
K Nas, L Tűű
OBJECTIVE: Insulin resistance (IR) is a common disorder, which can impair female fertility and is characterized by phenotypic heterogeneity. Life-style treatment and insulin sensitizers are commonly used in the management of women with IR and consequent hyperinsulinemia, in order to restore the normal endocrinological and clinical parameters. Metformin (MET) is considered one of the first approaches to this pathology but new evidences are showing promising results using myo-inositol (MYO) in the management of this pathology...
June 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28722209/reporting-of-outcomes-in-randomised-controlled-trials-on-nail-psoriasis-a-systematic-review
#5
REVIEW
C I M Busard, J Y C Nolte, M C Pasch, Ph I Spuls
Harmonization of outcome measures is needed to increase the value of clinical trials on nail psoriasis. To provide the first step in core outcome set (COS) development, a systematic review was conducted to identify outcome domains and instruments reported in (ongoing) randomised controlled trials (RCTs) on nail psoriasis. Identified outcome domains included clinical signs, quality of life, symptoms and delivery of care. A NAPSI was most commonly used to assess clinical signs (73.8% of studies). Other outcome instruments used included the NAS, composite fingernail score, a physician global assessment, individual nail features or a combination of these...
July 19, 2017: British Journal of Dermatology
https://www.readbyqxmd.com/read/28720220/application-of-ultrahigh-performance-liquid-chromatography-quadrupole-time-of-flight-mass-spectrometry-for-the-characterization-of-organic-aerosol-searching-for-naphthenic-acids
#6
Mahmoud M Yassine, Ewa Dabek-Zlotorzynska
Naphthenic acids (NAs) are naturally occurring constituents of hydrocarbon deposits (petroleum, oil sands bitumen, and crude oils), and present in any facilities that extract, process or use crude oil or bitumen for manufacturing. In the Athabasca oil sands region (AOSR) of Alberta, Canada, this diverse group of saturated acyclic, monocyclic, and polycyclic carboxylic acids is present in bitumen and in tailing ponds. Little is known about the occurrence of residual oil sands derived organic material, including NAs, in atmospheric particulate matter (PM)...
June 28, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/28715290/trainees-knowledge-attitudes-and-practices-towards-caring-for-the-substance-exposed-mother-infant-dyad
#7
Davida M Schiff, Barry Zuckerman, Elisha M Wachman, Megan Bair-Merritt
BACKGROUND: As rates of substance use disorder during pregnancy rise, pediatric trainees are increasingly caring for infants with neonatal abstinence syndrome (NAS). This study evaluated the knowledge, attitudes, and practices of trainees caring for substance-exposed newborns and their families, comparing differences by level and type of training, and personal experience with addiction or trauma. METHODS: A cross-sectional survey of medical students, pediatric, medicine/pediatrics and family medicine residents in 2015-2106...
July 17, 2017: Substance Abuse
https://www.readbyqxmd.com/read/28714572/surface-modified-mesh-filter-for-direct-nucleic-acid-extraction-and-its-application-to-gene-expression-analysis
#8
Jae Bem You, Yong Tae Kim, Kyoung G Lee, Yunho Choi, Seongkyun Choi, Chi Hyun Kim, Kyung Hoon Kim, Sung Jin Chang, Tae Jae Lee, Seok Jae Lee, Sung Gap Im
Rapid and convenient isolation of nucleic acids (NAs) from cell lysate plays a key role for onsite gene expression analysis. Here, this study achieves one-step and efficient capture of NA directly from cell lysate by developing a cationic surface-modified mesh filter (SMF). By depositing cationic polymer via vapor-phase deposition process, strong charge interaction is introduced on the surface of the SMF to capture the negatively charged NAs. The NA capturing capability of SMF is confirmed by X-ray photoelectron spectroscopy, fluorescent microscopy, and zeta potential measurement...
July 17, 2017: Advanced Healthcare Materials
https://www.readbyqxmd.com/read/28700020/a-meta-analysis-of-circulating-microvesicles-in-patients-with-myocardial-infarction
#9
Zhida Wang, Wang Cai, Shaolan Hu, Yufei Xia, Yao Wang, Qi Zhang, Liming Chen
Background: Cell-derived microvesicles (MVs) are vesicles released from activated or apoptotic cells. However, the levels of MVs in myocardial infarction have been found inconsistent in researches. Objective: To assess the association between MVs and myocardial infarction by conducting a meta-analysis. Methods: A systematic literature search on PubMed, Embase, Cochran, Google Scholar electronic database was conducted. Comparison of the MVs levels between myocardial infarction patients and healthy persons were included in our study...
July 10, 2017: Arquivos Brasileiros de Cardiologia
https://www.readbyqxmd.com/read/28699995/procedures-for-measuring-and-verifying-gastric-tube-placement-in-newborns-an-integrative-review
#10
Flávia de Souza Barbosa Dias, Suellen Cristina Dias Emidio, Maria Helena Baena de Moraes Lopes, Antonieta Keiko Kakuda Shimo, Ana Raquel Medeiros Beck, Elenice Valentim Carmona
Objective: to investigate evidence in the literature on procedures for measuring gastric tube insertion in newborns and verifying its placement, using alternative procedures to radiological examination. Method: an integrative review of the literature carried out in the Cochrane, LILACS, CINAHL, EMBASE, MEDLINE and Scopus databases using the descriptors "Intubation, gastrointestinal" and "newborns" in original articles. Results: seventeen publications were included and categorized as "measuring method" or "technique for verifying placement"...
July 10, 2017: Revista Latino-americana de Enfermagem
https://www.readbyqxmd.com/read/28699992/changes-in-frailty-conditions-and-phenotype-components-in-elderly-after-hospitalization
#11
Gianna Fiori Marchiori, Darlene Mara Dos Santos Tavares
Objective: describing the changes in frailty conditions over the period of a year after hospital discharge, verifying predictive variables for changes in frailty conditions and frailty phenotype components according to worsening, improving and stable groups. Method: a longitudinal survey carried out with 129 elderly. A structured form for socioeconomic and health data, scales (Geriatric Depression Scale - short form, Katz scale, Lawton and Brody scale) and frailty phenotype according to Fried were used...
July 10, 2017: Revista Latino-americana de Enfermagem
https://www.readbyqxmd.com/read/28699973/healthy-school-happy-school-design-and-protocol-for-a-randomized-clinical-trial-designed-to-prevent-weight-gain-in-children
#12
Daniela Schneid Schuh, Maíra Ribas Goulart, Sandra Mari Barbiero, Caroline D'Azevedo Sica, Raphael Borges, David William Moraes, Lucia Campos Pellanda
Background: Schools have become a key figure for the promotion of health and obesity interventions, bringing the development of critical awareness to the construction and promotion of a healthy diet, physical activity, and the monitoring of the nutritional status in childhood and adolescence. Objectives: To describe a study protocol to evaluate the effectiveness of an intervention designed to improve knowledge of food choices in the school environment. Methods: This is a cluster-randomized, parallel, two-arm study conducted in public elementary and middle schools in Brazil...
June 2017: Arquivos Brasileiros de Cardiologia
https://www.readbyqxmd.com/read/28694658/anti-steatotic-and-anti-fibrotic-effects-of-the-kca3-1-channel-inhibitor-senicapoc-in-non-alcoholic-liver-disease
#13
Latha Paka, David E Smith, Dawoon Jung, Siobhan McCormack, Ping Zhou, Bin Duan, Jing-Song Li, Jiaqi Shi, Yong-Jie Hao, Kai Jiang, Michael Yamin, Itzhak D Goldberg, Prakash Narayan
AIM: To evaluate a calcium activated potassium channel (KCa3.1) inhibitor attenuates liver disease in models of non-alcoholic fatty liver disease (NAFLD). METHODS: We have performed a series of in vitro and in vivo studies using the KCa3.1 channel inhibitor, Senicapoc. Efficacy studies of Senicapoc were conducted in toxin-, thioacetamide (TAA) and high fat diet (HFD)-induced models of liver fibrosis in rats. Efficacy and pharmacodynamic effects of Senicapoc was determined through biomarkers of apoptosis, inflammation, steatosis and fibrosis...
June 21, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28690395/an-assessment-of-database-validated-microrna-target-genes-in-normal-colonic-mucosa-implications-for-pathway-analysis
#14
Martha L Slattery, Jennifer S Herrick, John R Stevens, Roger K Wolff, Lila E Mullany
BACKGROUND: Determination of functional pathways regulated by microRNAs (miRNAs), while an essential step in developing therapeutics, is challenging. Some miRNAs have been studied extensively; others have limited information. In this study, we focus on 254 miRNAs previously identified as being associated with colorectal cancer and their database-identified validated target genes. METHODS: We use RNA-Seq data to evaluate messenger RNA (mRNA) expression for 157 subjects who also had miRNA expression data...
2017: Cancer Informatics
https://www.readbyqxmd.com/read/28689935/percutaneous-coil-embolization-for-the-treatment-of-a-giant-brachial-artery-pseudoaneurym-in-a-child
#15
Ahmet Yuksel, Omer Fatih Nas, Irem Iris Kan, Mustafa Tok, Cuneyt Erdogan
Brachial artery pseudoaneurysm is a rare phenomenon. When a diagnosis of brachial artery pseudoaneurysm is established, early and appropriate treatment should be performed as soon as possible in order to prevent possible complications such as hemorrhage, rupture, and upper limb and finger losses. Open surgical repair is usually the cornerstone of treatment; however, we herein report a case of giant brachial pseudoaneurysm in a 2-year-old girl, which was successfully treated with percutaneous coil embolization...
July 6, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28689752/effect-of-hospital-ownership-on-outcomes-of-heart-failure-hospitalization
#16
Emmanuel Akintoye, Alexandros Briasoulis, Alexander Egbe, Vwaire Orhurhu, Walid Ibrahim, Kartik Kumar, Samson Alliu, Hala Nas, Diane Levine, Jarrett Weinberger
This study aimed to evaluate the impact of hospital ownership on heart failure (HF) hospitalization outcomes in the United States using data from the National Inpatient Sample of the Agency for Healthcare Research and Quality. Hospital ownership was classified into three, namely, nonfederal government, not-for-profit, and for-profit hospitals. Participants were adults hospitalized with a primary diagnosis of HF (2013 to 2014). End points included inpatient mortality, length-of-stay, cost and charge of hospitalization, and disposition at discharge...
June 15, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28687877/a-simple-and-sensitive-surface-enhanced-raman-spectroscopic-discriminative-detection-of-organophosphorous-nerve-agents
#17
Jianfeng Wu, Yingjie Zhu, Jing Gao, Jia Chen, Jianlin Feng, Lei Guo, Jianwei Xie
Organophosphorous nerve agents (NAs) pose a great threat to nations and people because of their acute and extreme toxicities. The rapid detection of NAs has attracted growing interest in the first emergency response field. In this work, we demonstrate a simple and sensitive surface-enhanced Raman spectroscopic (SERS) method for NAs detection, and G- and V-agents discrimination. The results show that VX (V-agents) can be directly detected at a 20 ng mL(-1) level with pinhole shell-isolated gold nanoparticles (pinSHINs) as the substrate...
July 7, 2017: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/28687713/tlr9-is-upregulated-in-human-and-murine-nash-pivotal-role-for-inflammatory-recruitment-and-cell-survival
#18
Auvro R Mridha, Fahrettin Haczeyni, Matthew M Yeh, W Geoffrey Haigh, George N Ioannou, Vanessa Barn, Hussam Ajamieh, Leon Adams, Jeffrey M Hamdorf, Narci C Teoh, Geoffrey C Farrell
Background & Aims: TLR9 deletion protects against steatohepatitis due to choline-amino acid depletion and high-fat diet. We measured TLR9 in human NASH livers, and tested whether TLR9 mediates inflammatory recruitment in three murine models of NAFLD. Methods: We assayed TLR mRNA in liver biopsies from bariatric surgery patients. Wildtype (Wt) , appetite-dysregulated Alms1 mutant (foz/foz),Tlr9(-/-), and Tlr9(-/-).foz/foz C57BL6/J mice and bone marrow (BM) chimeras were fed 0.2% cholesterol, high-fat, high sucrose (atherogenic[Ath]) diet or chow, and NAFLD activity score (NAS)/NASH pathology, macrophage/neutrophil infiltration, cytokines/chemokines and cell death markers measured in livers...
July 7, 2017: Clinical Science (1979-)
https://www.readbyqxmd.com/read/28686285/towards-a-structural-understanding-of-nucleic-acid-sensing-toll-like-receptors-in-the-innate-immune-system
#19
REVIEW
Zhikuan Zhang, Umeharu Ohto, Toshiyuki Shimizu
The history of mankind has been plagued by the tug of war with viral infections. Toll-like receptors (TLRs) and other receptors of the innate immune system constitute an early defense system against invading viruses by recognizing the viral genetic material, the nucleic acids (NAs). Agonistic ligands of NA-sensing TLRs play an emerging role in the treatment of viral diseases, demonstrating a crucial role of these receptors. Recently, crystal structures have afforded new insights into TLR recognition of NAs...
July 7, 2017: FEBS Letters
https://www.readbyqxmd.com/read/28685864/rural-and-appalachian-disparities-in-neonatal-abstinence-syndrome-incidence-and-access-to-opioid-abuse-treatment
#20
Joshua D Brown, Amie J Goodin, Jeffery C Talbert
OBJECTIVE: Incidence of neonatal abstinence syndrome (NAS) is increasing due to the rise in opioid use. Rural states like Kentucky have been disproportionally impacted by opioid abuse, and this study determines NAS burden nationally and in Kentucky while quantifying differences in access to care between Appalachian and non-Appalachian counties. METHODS: NAS rates were calculated using National (2013) and Kentucky (2008-2014) National Inpatient Sample discharge data...
July 7, 2017: Journal of Rural Health
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