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https://www.readbyqxmd.com/read/28637218/genome-wide-characterization-and-expression-analysis-enables-identification-of-abiotic-stress-responsive-myb-transcription-factors-in-cassava-manihot-esculenta
#1
Meng-Bin Ruan, Xin Guo, Bin Wang, Yi-Ling Yang, Wen-Qi Li, Xiao-Ling Yu, Peng Zhang, Ming Peng
The myeloblastosis (MYB) transcription factor superfamily is the largest transcription factor family in plants, playing different roles during stress response. However, abiotic stress-responsive MYB transcription factors have not been systematically studied in cassava (Manihot esculenta), an important tropical tuber root crop. In this study, we used a genome-wide transcriptome analysis to predict 299 putative MeMYB genes in the cassava genome. Under drought and cold stresses, many MeMYB genes exhibited different expression patterns in cassava leaves, indicating that these genes might play a role in abiotic stress responses...
June 20, 2017: Journal of Experimental Botany
https://www.readbyqxmd.com/read/28636089/geographic-substructure-in-craniometric-estimates-of-admixture-for-contemporary-american-populations
#2
Bridget F B Algee-Hewitt
OBJECTIVES: This study investigates heterogeneity in craniometrically-derived estimates of admixture in order to reveal population substructure in a sample of Black, White, Hispanic, and Native American individuals from the FDB. It reports evidence of spatial trends in population-specific patterns of admixture and contextualizes its results in terms of demographic diversity in the United States. MATERIALS AND METHODS: The FDB was sampled to capture the population variation within forensic casework, skeletal collections, and the U...
June 21, 2017: American Journal of Physical Anthropology
https://www.readbyqxmd.com/read/28635904/-myocardial-fibrosis-current-aspects-of-the-problem
#3
V N Karetnikova, V V Kashtalap, S N Kosareva, O L Barbarash
Fibrosis is one of the main components in the progression of most cardiovascular diseases, including coronary heart disease, by causing structural changes in the myocardium and vascular wall. The quantitative and qualitative characteristics of fibrosis of the myocardium are responsible for decreasing its elastic properties, developing diastolic dysfunction, impairing myocardial contractility, developing systolic dysfunction and cardiac arrhythmias, and worsening coronary blood flow in patients with heart failure of different etiologies...
2017: Terapevticheskiĭ Arkhiv
https://www.readbyqxmd.com/read/28633896/design-synthesis-and-biological-evaluation-of-novel-3h-imidazole-4-5-b-pyridine-derivatives-as-selective-mtor-inhibitors
#4
Lingzhi Zhang, Tantan Bu, Xiaobo Bao, Tingting Liang, Yiran Ge, Yungen Xu, Qihua Zhu
A series of 3H-imidazo [4,5-b] pyridines derivatives were designed and synthesized as selective mTOR inhibitors. The systematic optimization of the molecules resulted in the identification of two compounds 10d and 10n with nanomolar mTOR inhibitory activity and selectivity over PI3Kα. Besides, compounds 10d and 10n demonstrated attractive potency against human breast cancer cells (MCF-7) and human ovarian cancer cell (A2780).
June 3, 2017: Bioorganic & Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/28632966/characterizing-alzheimer-s-disease-through-metabolomics-and-investigating-anti-alzheimer-s-disease-effects-of-natural-products
#5
REVIEW
Lunzhao Yi, Wenbin Liu, Zhe Wang, Dabing Ren, Weijun Peng
Alzheimer's disease (AD) is the most common cause of dementia in elderly people and is among the greatest healthcare challenges of the 21st century. However, the etiology and pathogenesis of AD remain poorly understood, and no curative treatments are available to slow down or stop the degenerative effects of AD. As a high-throughput approach, metabolomics is gaining significant attention in AD research, because it has a powerful potential to discover novel biomarkers, unravel new therapeutic targets for AD, and identify perturbed metabolic pathways involved in AD progression...
June 20, 2017: Annals of the New York Academy of Sciences
https://www.readbyqxmd.com/read/28630321/how-selective-severing-by-katanin-promotes-order-in-the-plant-cortical-microtubule-array
#6
Eva E Deinum, Simon H Tindemans, Jelmer J Lindeboom, Bela M Mulder
Plant morphogenesis requires differential and often asymmetric growth. A key role in controlling anisotropic expansion of individual cells is played by the cortical microtubule array. Although highly organized, the array can nevertheless rapidly change in response to internal and external cues. Experiments have identified the microtubule-severing enzyme katanin as a central player in controlling the organizational state of the array. Katanin action is required both for normal alignment and the adaptation of array orientation to mechanical, environmental, and developmental stimuli...
June 19, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28629829/morphological-variability-and-molecular-characterization-of-pomphorhynchus-zhoushanensis-sp-nov-acanthocephala-pomphorhynchidae-with-comments-on-the-systematic-status-of-pomphorhynchus-monticelli-1905
#7
Liang Li, Hui-Xia Chen, Omar M Amin, Yue Yang
Species of Pomphorhynchus Monticelli, 1905 commonly parasitize the digestive tract of freshwater fishes, and rarely occur in marine fishes and amphibians. In the present study, Pomphorhynchus zhoushanensis sp. nov., collected from the barred knifejaw Oplegnathus fasciatus (Temminck & Schlegel) (Perciformes: Oplegnathidae) in the East China Sea, was described using integrated approaches, including light and scanning electron microscopy, and the sequencing and analysing of ribosomal [small ribosomal DNA (18S) and internal transcribed spacer (ITS)] and mitochondrial [cytochrome c oxidase subunit 1 (cox1)] target regions...
June 16, 2017: Parasitology International
https://www.readbyqxmd.com/read/28628766/multimorbidity-and-depression-a-systematic-review-and-meta-analysis
#8
Jennifer R Read, Louise Sharpe, Matthew Modini, Blake F Dear
BACKGROUND: Multimorbidity, the presence of two or more chronic conditions, is increasingly common and complicates the assessment and management of depression. The aim was to investigate the relationship between multimorbidity and depression. METHOD: A systematic literature search was conducted using the databases; PsychINFO, Medline, Embase, CINAHL and Cochrane Central. Results were meta-analysed to determine risk for a depressive disorder or depressive symptoms in people with multimorbidity...
June 14, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/28628548/clinical-outcome-measures-for-lateropulsion-poststroke-an-updated-systematic-review
#9
Ryan Koter, Sara Regan, Caitlin Clark, Vicki Huang, Melissa Mosley, Erin Wyant, Chad Cook, Jeffrey Hoder
BACKGROUND AND PURPOSE: Contraversive Lateropulsion, also referred to as contraversive pushing, pusher behavior, and pusher syndrome, can be associated with increased hospital length of stay, increased health care costs, and delayed outcomes in persons with stroke. The purpose of this updated systematic review was to identify scales used to classify contraversive lateropulsion, investigate literature that addresses their clinimetric properties, and create a resource for clinicians recommending use in clinical practice...
July 2017: Journal of Neurologic Physical Therapy: JNPT
https://www.readbyqxmd.com/read/28627926/using-crowdsourcing-to-examine-behavioral-economic-measures-of-alcohol-value-and-proportionate-alcohol-reinforcement
#10
Vanessa Morris, Michael Amlung, Brent A Kaplan, Derek D Reed, Tashia Petker, James MacKillop
Online crowdsourcing websites such as Amazon's Mechanical Turk (MTurk) are increasingly being used in addictions research. However, there is a relative paucity of such research examining the validity of administering behavioral economic alcohol-related measures, via an online crowdsourcing platform. This study sought to validate an alcohol purchase task (APT) for assessing demand and a questionnaire measure of proportionate alcohol reinforcement, using an online sample of participants recruited via MTurk. Participants (N = 865, 59% female) were recruited via MTurk to complete the APT, proportionate alcohol reinforcement questionnaire, Alcohol Use Disorders Identification Test (AUDIT), and demographics...
June 19, 2017: Experimental and Clinical Psychopharmacology
https://www.readbyqxmd.com/read/28627727/development-of-hgf-binding-aptamers-with-the-combination-of-g4-promoter-derived-aptamer-selection-and-in-silico-maturation
#11
Tomomi Yokoyama, Kaori Tsukakoshi, Wataru Yoshida, Taiki Saito, Kentaro Teramoto, Nasa Savory, Koichi Abe, Kazunori Ikebukuro
We describe the selection of aptamers based on bioinformatics-based approaches without Systematic Evolution of Ligands by EXponential enrichment (SELEX). SELEX is a potent method; however, it is time intensive and the PCR-amplification step, which is essential step for SELEX, leads to the loss of good aptamers. We have developed an aptamer-screening method, G4 promoter-derived aptamer selection (G4PAS), and an aptamer-improving method, in silico maturation (ISM). They are based on in silico sequence selection and computer assisted directed evolution, respectively...
June 19, 2017: Biotechnology and Bioengineering
https://www.readbyqxmd.com/read/28627425/a-multicenter-retrospective-analysis-stressing-importance-of-long-term-follow-up-after-hematopoietic-cell-transplantation-for-%C3%AE-thalassemia
#12
S Chaudhury, M Ayas, C Rosen, M Ma, M Viqaruddin, S Parikh, S Kharbanda, K Y Chiang, A Haight, M Bhatia, Gmt Guilcher, A Thompson, S Shenoy
Allogeneic hematopoietic cell transplantation (HCT) is curative in patients with β-thalassemia major. However, the majority of reports on HCT outcomes lack long-term follow-up data with the exception of single center reports. An international multicenter retrospective data collection and analysis was conducted in 176 β-Thalassemia patients who were 1 year or beyond after first HCT to evaluate follow up methods and outcomes at 7 centers- Median age at HCT was 5.5 years (range, 0.6- 18.5) and median follow-up was 7 years (range, 1-20)...
June 13, 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28627248/methodological-challenges-involved-in-compiling-the-nahua-pharmacopeia
#13
Paula De Vos
Recent work in the history of science has questioned the Eurocentric nature of the field and sought to include a more global approach that would serve to displace center-periphery models in favor of approaches that take seriously local knowledge production. Historians of Iberian colonial science have taken up this approach, which involves reliance on indigenous knowledge traditions of the Americas. These traditions present a number of challenges to modern researchers, including availability and reliability of source material, issues of translation and identification, and lack of systematization...
June 1, 2017: History of Science; An Annual Review of Literature, Research and Teaching
https://www.readbyqxmd.com/read/28626527/systematic-data-mining-reveals-synergistic-h3r-mchr1-ligands
#14
David Schaller, Stefanie Hagenow, Gina Alpert, Alexandra Naß, Robert Schulz, Marcel Bermudez, Holger Stark, Gerhard Wolber
In this study, we report a ligand-centric data mining approach that guided the identification of suitable target profiles for treating obesity. The newly developed method is based on identifying target pairs for synergistic positive effects and also encompasses the exclusion of compounds showing a detrimental effect on obesity treatment (off-targets). Ligands with known activity against obesity-relevant targets were compared using fingerprint representations. Similar compounds with activities to different targets were evaluated for the mechanism of action since activation or deactivation of drug targets determines the pharmacological effect...
June 8, 2017: ACS Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/28625708/-algorithms-for-the-identification-of-hospital-stays-due-to-osteoporotic-femoral-neck-fractures-in-european-medical-administrative-databases-using-icd-10-codes-a-non-systematic-review-of-the-literature
#15
P Caillet, P Oberlin, E Monnet, L Guillon-Grammatico, P Métral, M Belhassen, P Denier, L Banaei-Bouchareb, M Viprey, D Biau, A-M Schott
BACKGROUND: Osteoporotic hip fractures (OHF) are associated with significant morbidity and mortality. The French medico-administrative database (SNIIRAM) offers an interesting opportunity to improve the management of OHF. However, the validity of studies conducted with this database relies heavily on the quality of the algorithm used to detect OHF. The aim of the REDSIAM network is to facilitate the use of the SNIIRAM database. The main objective of this study was to present and discuss several OHF-detection algorithms that could be used with this database...
June 15, 2017: Revue D'épidémiologie et de Santé Publique
https://www.readbyqxmd.com/read/28625077/microbiome-and-microbial-biofilm-profiles-of-peri-implantitis-a-systematic-review
#16
Gloria Inés Lafaurie, María Alejandra Sabogal, Diana Marcela Castillo, María Victoria Rincón, Luz Amparo Gómez, Yamil Augusto Lesmes, Leandro Chambrone
BACKGROUND: This systematic review assesses the microbiological profiles of peri-implantitis, periodontitis and healthy implants based on studies that evaluated microbial biofilms and entire microbiomes to establish their similarities and differences. METHODS: The Medical Literature Analysis and Retrieval System Online, via PubMed, EMBASE (Excerpta Medica Database) and Cochrane Central Register of Controlled Trials (CENTRAL) were searched without language restrictions through July 30, 2016...
June 19, 2017: Journal of Periodontology
https://www.readbyqxmd.com/read/28624641/text-mining-applied-to-electronic-cardiovascular-procedure-reports-to-identify-patients-with-trileaflet-aortic-stenosis-and-coronary-artery-disease
#17
Aeron M Small, Daniel H Kiss, Yevgeny Zlatsin, David L Birtwell, Heather Williams, Marie A Guerraty, Yuchi Han, Saif Anwaruddin, John H Holmes, Julio A Chirinos, Robert L Wilensky, Jay Giri, Daniel J Rader
BACKGROUND: Interrogation of the electronic health record (EHR) using billing codes as a surrogate for diagnoses of interest has been widely used for clinical research. However, the accuracy of this methodology is variable, as it reflects billing codes rather than severity of disease, and depends on the disease and the accuracy of the coding practitioner. Systematic application of text mining to the EHR has had variable success for the detection of cardiovascular phenotypes. We hypothesize that the application of text mining algorithms to cardiovascular procedure reports may be a superior method to identify patients with cardiovascular conditions of interest...
June 14, 2017: Journal of Biomedical Informatics
https://www.readbyqxmd.com/read/28624637/developing-a-new-bayesian-risk-index-for-risk-evaluation-of-soil-contamination
#18
M T D Albuquerque, S Gerassis, C Sierra, J Taboada, J E Martín, I M H R Antunes, J R Gallego
Industrial and agricultural activities heavily constrain soil quality. Potentially Toxic Elements (PTEs) are a threat to public health and the environment alike. In this regard, the identification of areas that require remediation is crucial. In the herein research a geochemical dataset (230 samples) comprising 14 elements (Cu, Pb, Zn, Ag, Ni, Mn, Fe, As, Cd, V, Cr, Ti, Al and S) was gathered throughout eight different zones distinguished by their main activity, namely, recreational, agriculture/livestock and heavy industry in the Avilés Estuary (North of Spain)...
June 15, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28623590/integration-of-genome-wide-tf-binding-and-gene-expression-data-to-characterize-gene-regulatory-networks-in-plant-development
#19
Dijun Chen, Kerstin Kaufmann
Key transcription factors (TFs) controlling the morphogenesis of flowers and leaves have been identified in the model plant Arabidopsis thaliana. Recent genome-wide approaches based on chromatin immunoprecipitation (ChIP) followed by high-throughput DNA sequencing (ChIP-seq) enable systematic identification of genome-wide TF binding sites (TFBSs) of these regulators. Here, we describe a computational pipeline for analyzing ChIP-seq data to identify TFBSs and to characterize gene regulatory networks (GRNs) with applications to the regulatory studies of flower development...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28621573/update-on-the-diagnostic-value-and-safety-of-stereotactic-biopsy-for-pediatric-brainstem-tumors-a-systematic-review-and-meta-analysis-of-735-cases
#20
Christina Hamisch, Philipp Kickingereder, Matthias Fischer, Thorsten Simon, Maximilian I Ruge
OBJECTIVE Recent studies have shed light on the molecular makeup of diffuse intrinsic pontine gliomas and led to the identification of potential treatment targets for these lesions, which account for the majority of pediatric brainstem tumors (pedBSTs). Therefore, stereotactic biopsy-driven molecular characterization of pedBSTs may become an important prerequisite for the management of these fatal brain tumors. The authors conducted a systemic review and meta-analysis to precisely determine the safety and diagnostic success of stereotactic biopsy of pedBSTs...
June 16, 2017: Journal of Neurosurgery. Pediatrics
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