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https://www.readbyqxmd.com/read/28423839/a-semantic-framework-for-logical-cross-validation-evaluation-and-impact-analyses-of-population-health-interventions
#1
Arash Shaban-Nejad, Anya Okhmatovskaia, Eun Kyong Shin, Robert L Davis, Brandi E Franklin, David L Buckeridge
Most chronic diseases are a result of a complex web of causative and correlated factors. As a result, effective public health or clinical interventions that intend to generate a sustainable change in these diseases most often use a combination of strategies or programs. To optimize comparative effectiveness evaluations and select the most efficient intervention(s), stakeholders (i.e. public health institutions, policy-makers and advocacy groups, practitioners, insurers, clinicians, and researchers) need access to reliable assessment methods...
2017: Studies in Health Technology and Informatics
https://www.readbyqxmd.com/read/28423795/multivariate-and-longitudinal-health-system-indicators
#2
Guido Antonio Powell, Yu T Luo, Aman Verma, David A Stephens, David L Buckeridge
Within population health information systems, indicators are commonly presented as independent, cross-sectional measures, neglecting the multivariate, longitudinal nature of disease progression, health care use, and profiles of performance. We use administrative claims data of Montreal, Canada to identify patterns across indicators and over time in chronic obstructive pulmonary disease patients. We first cluster regions based on four health service indicators. Our second approach discovers individual-level trajectories based on a hidden Markov model using the same four indicators...
2017: Studies in Health Technology and Informatics
https://www.readbyqxmd.com/read/28418314/population-genomics-of-legionella-longbeachae-and-hidden-complexities-of-infection-source-attribution
#3
Rodrigo Bacigalupe, Diane Lindsay, Giles Edwards, J Ross Fitzgerald
Legionella longbeachae is the primary cause of legionellosis in Australasia and Southeast Asia and an emerging pathogen in Europe and the United States; however, our understanding of the population diversity of L. longbeachae from patient and environmental sources is limited. We analyzed the genomes of 64 L. longbeachae isolates, of which 29 were from a cluster of legionellosis cases linked to commercial growing media in Scotland in 2013 and 35 were non-outbreak-associated isolates from Scotland and other countries...
May 2017: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/28404504/burden-of-asymptomatic-malaria-among-a-tribal-population-in-a-forested-village-of-central-india-a%C3%A2-hidden-challenge-for-malaria-control-in-india
#4
M K Chourasia, K Raghavendra, R M Bhatt, D K Swain, N Valecha, I Kleinschmidt
OBJECTIVE: Chhattisgarh in India is a malaria-endemic state with seven southern districts that contributes approximately 50-60% of the reported malaria cases in the state every year. The problem is further complicated due to asymptomatic malaria cases which are largely responsible for persistent transmission. This study was undertaken in one of the forested villages of the Keshkal subdistrict in Kondagaon district to ascertain the proportion of the population harbouring subclinical malarial infections...
March 21, 2017: Public Health
https://www.readbyqxmd.com/read/28369632/differential-expression-analysis-for-rnaseq-using-poisson-mixed-models
#5
Shiquan Sun, Michelle Hood, Laura Scott, Qinke Peng, Sayan Mukherjee, Jenny Tung, Xiang Zhou
Identifying differentially expressed (DE) genes from RNA sequencing (RNAseq) studies is among the most common analyses in genomics. However, RNAseq DE analysis presents several statistical and computational challenges, including over-dispersed read counts and, in some settings, sample non-independence. Previous count-based methods rely on simple hierarchical Poisson models (e.g. negative binomial) to model independent over-dispersion, but do not account for sample non-independence due to relatedness, population structure and/or hidden confounders...
March 29, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/28369623/the-hidden-life-of-integrative-and-conjugative-elements
#6
François Delavat, Ryo Miyazaki, Nicolas Carraro, Nicolas Pradervand, Jan Roelof van der Meer
Integrative and conjugative elements (ICEs) are widespread mobile DNA that transmit both vertically, in a host-integrated state, and horizontally, through excision and transfer to new recipients. Different families of ICEs have been discovered with more or less restricted host ranges, which operate by similar mechanisms but differ in regulatory networks, evolutionary origin and the types of variable genes they contribute to the host. Based on reviewing recent experimental data, we propose a general model of ICE life style that explains the transition between vertical and horizontal transmission as a result of a bistable decision in the ICE-host partnership...
March 25, 2017: FEMS Microbiology Reviews
https://www.readbyqxmd.com/read/28366603/malaria-eradication-and-the-hidden-parasite-reservoir
#7
Miles B Markus
Accumulation of erythrocytic parasites in bone marrow and the spleen has been reported in cases of Plasmodium vivax malaria. If this occurs commonly, these stages represent a possible source of early, relapse-like homologous recurrences. Moreover, they might hinder the elimination of malaria from human populations. Pertinent research suggestions have been made.
March 30, 2017: Trends in Parasitology
https://www.readbyqxmd.com/read/28352296/hidden-diversity-and-phylogeographic-history-provide-conservation-insights-for-the-edible-seaweed-sargassum-fusiforme-in-the-northwest-pacific
#8
Zi-Min Hu, Jing-Jing Li, Zhong-Min Sun, Xu Gao, Jian-Ting Yao, Han-Gil Choi, Hikaru Endo, De-Lin Duan
Understanding the evolutionary processes that have created diversity and the genetic potential of species to adapt to environmental change is an important premise for biodiversity conservation. Herein, we used mitochondrial trnW-L and cox3 and plastid rbcL-S data sets to analyze population genetic variation and phylogeographic history of the brown alga Sargassum fusiforme, whose natural resource has been largely exterminated in the Asia-Northwest Pacific in the past decades. Phylogenetic trees and network analysis consistently revealed three major haplotype groups (A, B, and C) in S...
April 2017: Evolutionary Applications
https://www.readbyqxmd.com/read/28347634/ten-year-outcomes-of-monomorphic-ventricular-tachycardia-catheter-ablation-in-repaired-tetralogy-of-fallot
#9
Mikaël Laredo, Robert Frank, Xavier Waintraub, Estelle Gandjbakhch, Laurence Iserin, Sebastien Hascoët, Caroline Himbert, Yves Gallais, Françoise Hidden-Lucet, Guillaume Duthoit
BACKGROUND: Monomorphic ventricular tachycardia (MVT) is common in adults with repaired tetralogy of Fallot (TOF), and is associated with sudden cardiac death. Management of MVT is not defined, and results of catheter ablation (CA) are limited. AIMS: To evaluate long-term outcomes of MVT CA in repaired TOF. METHODS: Thirty-four patients (mean age 32±10.3 years; 59% male) with repaired TOF underwent CA for symptomatic MVT between 1990 and 2012 in our centre; direct-current ablation (DCA) was used in 6%, radiofrequency followed by DCA in 29% and radiofrequency alone in 65%...
March 24, 2017: Archives of Cardiovascular Diseases
https://www.readbyqxmd.com/read/28346895/wheat-genomics-comes-of-age
#10
REVIEW
Cristobal Uauy
Advances in wheat genomics have lagged behind other major cereals (e.g., rice and maize) due to its highly repetitive and large polyploid genome. Recent technological developments in sequencing and assembly methods, however, have largely overcome these barriers. The community now moves to an era centred on functional characterisation of the genome. This includes understanding sequence and structural variation as well as how information is integrated across multiple homoeologous genomes. This understanding promises to uncover variation previously hidden from natural and human selection due to the often observed functional redundancy between homoeologs...
March 24, 2017: Current Opinion in Plant Biology
https://www.readbyqxmd.com/read/28344699/curricular-initiatives-that-enhance-student-knowledge-and-perceptions-of-sexual-and-gender-minority-groups-a-critical-interpretive-synthesis
#11
REVIEW
Jennifer Desrosiers, Tim Wilkinson, Gillian Abel, Suzanne Pitama
BACKGROUND: There is no accepted best practice for optimizing tertiary student knowledge, perceptions, and skills to care for sexual and gender diverse groups. The objective of this research was to synthesize the relevant literature regarding effective curricular initiatives designed to enhance tertiary level student knowledge, perceptions, and skills to care for sexual and gender diverse populations. METHODS: A modified Critical Interpretive Synthesis using a systematic search strategy was conducted in 2015...
October 2016: Canadian Medical Education Journal
https://www.readbyqxmd.com/read/28333587/variational-latent-gaussian-process-for-recovering-single-trial-dynamics-from-population-spike-trains
#12
Yuan Zhao, Il Memming Park
When governed by underlying low-dimensional dynamics, the interdependence of simultaneously recorded populations of neurons can be explained by a small number of shared factors, or a low-dimensional trajectory. Recovering these latent trajectories, particularly from single-trial population recordings, may help us understand the dynamics that drive neural computation. However, due to the biophysical constraints and noise in the spike trains, inferring trajectories from data is a challenging statistical problem in general...
May 2017: Neural Computation
https://www.readbyqxmd.com/read/28318800/autoimmune-disease-development-based-on-possible-mislocalization-of-intracellular-and-extracellular-proteins
#13
Borros Arneth
BACKGROUND: T helper cells can differentiate into several subsets of T lymphocytes, including Th1, Th2, and regulatory T (Treg) cells. As a result of this ability to differentiate, the corresponding T cell receptor (TCR) spectra display considerable cellular plasticity and interchangeability. In contrast, T lymphocyte differentiation and separation into CD4(+) and/or CD8(+) T cell lines creates stable populations over a person's lifetime, which abrogates the plasticity and interchange between these cell types and their corresponding TCR spectra but results in considerable stability regarding the corresponding TCR sequences and spectra...
February 27, 2017: Immunobiology
https://www.readbyqxmd.com/read/28317207/hidden-high-rate-of-preeclampsia-in-twin-compared-to-singleton-pregnancies
#14
Carla Francisco, David Wright, Zsófia Benkő, Argyro Syngelaki, Kypros H Nicolaides
OBJECTIVE: To examine the gestational age at delivery with and without preeclampsia (PE) in dichorionic (DC) and monochorionic (MC) twin pregnancies and determine the relative risk for total and preterm-PE compared to singleton pregnancies. METHODS: This was a screening study for PE in twin pregnancies undergoing first-trimester combined screening for aneuploidy and subsequently delivering two phenotypically normal live or stillborn babies at ≥24 weeks' gestation...
March 19, 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28298214/climat-het-detecting-subclonal-copy-number-alterations-and-loss-of-heterozygosity-in-heterogeneous-tumor-samples-from-whole-genome-sequencing-data
#15
Zhenhua Yu, Ao Li, Minghui Wang
BACKGROUND: Copy number alterations (CNA) and loss of heterozygosity (LOH) represent a large proportion of genetic structural variations of cancer genomes. These aberrations are continuously accumulated during the procedure of clonal evolution and patterned by phylogenetic branching. This invariably results in the emergence of multiple cell populations with distinct complement of mutational landscapes in tumor sample. With the advent of next-generation sequencing technology, inference of subclonal populations has become one of the focused interests in cancer-associated studies, and is usually based on the assessment of combinations of somatic single-nucleotide variations (SNV), CNA and LOH...
March 15, 2017: BMC Medical Genomics
https://www.readbyqxmd.com/read/28294109/goal-recognition-based-adaptive-brain-computer-interface-for-navigating-immersive-robotic-systems
#16
Mohammad Abu-Alqumsan, Felix Ebert, Angelika Peer
OBJECTIVE: This work proposes principled strategies for self-adaptations in EEG-based Brain-computer interfaces (BCIs) as a way out of the bandwidth bottleneck resulting from the considerable mismatch between the low-bandwidth interface and the bandwidth-hungry application, and a way to enable fluent and intuitive interaction in embodiment systems. The main focus is laid upon inferring the hidden target goals of users while navigating in a remote environment as a basis for possible adaptations...
March 15, 2017: Journal of Neural Engineering
https://www.readbyqxmd.com/read/28284261/tuberculosis-drug-resistance-in-southern-mozambique-results-of-a-population-level-survey-in-the-district-of-manhi%C3%A3-a
#17
S Valencia, D Respeito, S Blanco, R M Ribeiro, E López-Varela, V G Sequera, B Saavedra, E Mambuque, M Gómez Morillo, H Bulo, F Cobelens, E Macete, P L Alonso, J A Caminero, A L García-Basteiro
SETTING: Mozambique, one of the world's high tuberculosis (TB) burden countries, has conducted only one national-level drug resistance survey, in 2007-2008. OBJECTIVE: To determine the drug resistance patterns of laboratory-confirmed TB cases. DESIGN: This was a population-level survey conducted over a 1-year period in the district of Manhiça. All laboratory-confirmed cases were evaluated for first-line anti-tuberculosis drug susceptibility testing using liquid culture...
April 1, 2017: International Journal of Tuberculosis and Lung Disease
https://www.readbyqxmd.com/read/28278154/harnessing-the-hidden-genetic-diversity-for-improving-multiple-abiotic-stress-tolerance-in-rice-oryza-sativa-l
#18
Jauhar Ali, Jian-Long Xu, Yong-Ming Gao, Xiu-Fang Ma, Li-Jun Meng, Ying Wang, Yun-Long Pang, Yong-Sheng Guan, Mei-Rong Xu, Jastin E Revilleza, Neil J Franje, Shao-Chuan Zhou, Zhi-Kang Li
To develop superior rice varieties with improved yield in most rainfed areas of Asia/Africa, we started an introgression-breeding program for simultaneously improving yield and tolerances of multiple abiotic stresses. Using eight BC1 populations derived from a widely adaptable recipient and eight donors plus three rounds of phenotypic selection, we developed 496 introgression lines (ILs) with significantly higher yield under drought, salt and/or non-stress conditions in 5 years. Six new varieties were released in the Philippines and Pakistan and many more are being evaluated in multi-location yield trials for releasing in several countries...
2017: PloS One
https://www.readbyqxmd.com/read/28276873/the-hidden-niemann-pick-type-c-patient-clinical-niches-for-a-rare-inherited-metabolic-disease
#19
Christian J Hendriksz, Mathieu Anheim, Peter Bauer, Olivier Bonnot, Anupam Chakrapani, Jean-Christophe Corvol, Tom J de Koning, Anna Degtyareva, Carlo Dionisi-Vici, Sarah Doss, Thomas Duning, Paola Giunti, Rosa Iodice, Tracy Johnston, Dierdre Kelly, Hans-Hermann Klünemann, Stefan Lorenzl, Alessandro Padovani, Miguel Pocovi, Matthis Synofzik, Alta Terblanche, Florian Then Bergh, Meral Topçu, Christine Tranchant, Mark Walterfang, Christian Velten, Stefan A Kolb
BACKGROUND: Niemann-Pick disease type C (NP-C) is a rare, inherited neurodegenerative disease of impaired intracellular lipid trafficking. Clinical symptoms are highly heterogeneous, including neurological, visceral, or psychiatric manifestations. The incidence of NP-C is under-estimated due to under-recognition or misdiagnosis across a wide range of medical fields. New screening and diagnostic methods provide an opportunity to improve detection of unrecognized cases in clinical sub-populations associated with a higher risk of NP-C...
May 2017: Current Medical Research and Opinion
https://www.readbyqxmd.com/read/28273768/genetic-susceptibility-to-multiple-sclerosis-brain-structure-and-cognitive-function-in-the-general-population
#20
Mohammad Arfan Ikram, Meike W Vernooij, Gennady V Roshchupkin, Albert Hofman, Cornelia M van Duijn, André G Uitterlinden, Wiro J Niessen, Rogier Q Hintzen, Hieab Hh Adams
BACKGROUND: Multiple sclerosis (MS) affects brain structure and cognitive function and has a heritable component. Over a 100 common genetic risk variants have been identified, but most carriers do not develop MS. For other neurodegenerative diseases, risk variants have effects outside patient populations, but this remains uninvestigated for MS. OBJECTIVES: To study the effect of MS-associated genetic variants on brain structure and cognitive function in the general population...
December 1, 2016: Multiple Sclerosis: Clinical and Laboratory Research
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