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https://www.readbyqxmd.com/read/28545083/simultaneous-inference-of-phylogenetic-and-transmission-trees-in-infectious-disease-outbreaks
#1
Don Klinkenberg, Jantien A Backer, Xavier Didelot, Caroline Colijn, Jacco Wallinga
Whole-genome sequencing of pathogens from host samples becomes more and more routine during infectious disease outbreaks. These data provide information on possible transmission events which can be used for further epidemiologic analyses, such as identification of risk factors for infectivity and transmission. However, the relationship between transmission events and sequence data is obscured by uncertainty arising from four largely unobserved processes: transmission, case observation, within-host pathogen dynamics and mutation...
May 2017: PLoS Computational Biology
https://www.readbyqxmd.com/read/28545050/prevalence-and-extent-of-heteroresistance-by-next-generation-sequencing-of-multidrug-resistant-tuberculosis
#2
Darwin J Operario, Alexander F Koeppel, Stephen D Turner, Yongde Bao, Suporn Pholwat, Sayera Banu, Suporn Foongladda, Stellah Mpagama, Jean Gratz, Oleg Ogarkov, Svetlana Zhadova, Scott K Heysell, Eric R Houpt
Amplicon-based Next Generation Sequencing (NGS) is an emerging method for Mycobacterium tuberculosis drug susceptibility testing (DST) but has not been well described. We examined 158 clinical multidrug-resistant M. tuberculosis isolates via NGS of 11 resistance-associated gene regions covering 3519 nucleotides. Across these gene regions, complete resistance or heteroresistance (defined as 1%-99% mutation) was present in at least one isolate in 6.3% of loci. The number of isolates with heteroresistance was highest for gyrA codon 94, rpoB codons 526 and 531, and embB codons 306, 372 and 406 (range 11-26% of isolates exhibited heteroresistance)...
2017: PloS One
https://www.readbyqxmd.com/read/28544946/perceived-barriers-to-healthcare-and-receipt-of-recommended-medical-care-among-elderly-medicare-beneficiaries
#3
Jibby E Kurichi, Liliana Pezzin, Joel E Streim, Pui L Kwong, Ling Na, Hillary R Bogner, Dawei Xie, Sean Hennessy
PURPOSE: Many Medicare beneficiaries perceive barriers to receiving healthcare, although the consequences are unknown. Facilitators can aid in the receipt of healthcare services. The objective was to assess the relationship between perceived facilitators and barriers to healthcare and actual receipt of recommended medical care among elderly beneficiaries. METHODS: A cohort study using data from the 2001-2008 entry panels of the Medicare Current Beneficiary Survey that included 24,607 community-dwelling beneficiaries 65 years of age and older...
May 18, 2017: Archives of Gerontology and Geriatrics
https://www.readbyqxmd.com/read/28544729/comparative-study-of-two-chemical-protocols-for-creating-white-spot-lesions-an-in-vitro-fluorecam-evaluation
#4
Moufida Abufarwa, Amal Noureldin, Phillip M Campbell, Peter H Buschang
AIM: The aim of the present study was to compare the effectiveness and practicality of two commonly-used protocols for white spot lesion creation. METHODS: Sound posterior human teeth were sectioned into halves and randomly allocated into two groups (n=20). Using the FluoreCam system, the enamel surfaces were imaged under standardized conditions, and baseline data (area, intensity, and impact) were recorded. Specimens were covered with an acid-resistant polish, leaving a 2×6-mm enamel window...
May 23, 2017: Journal of Investigative and Clinical Dentistry
https://www.readbyqxmd.com/read/28544432/are-10-khz-stimulation-and-burst-stimulation-fundamentally-the-same
#5
REVIEW
Dirk De Ridder, Sanjaya Perera, Sven Vanneste
BACKGROUND: Spinal cord stimulation (SCS) is routinely used for intractable pain syndromes. For SCS to be efficacious the painful area needs to be covered by SCS induced paresthesia symptoms. Recently, novel stimulation designs have been developed for spinal cord stimulation (SCS) that are superior to classical spinal cord stimulation and exert their effects without the mandatory paresthesia. Two such stimulation designs are burst stimulation and 10 kHz stimulation. OBJECTIVE: Whereas the mechanism of action of burst SCS has been partly elucidated, in that it modulates the medial pain pathway in contrast to tonic stimulation, the mechanism of action of 10 kHz SCS is still enigmatic...
May 25, 2017: Neuromodulation: Journal of the International Neuromodulation Society
https://www.readbyqxmd.com/read/28544322/in-vitro-skin-expansion-wound-healing-assessment
#6
Peter M Prim, Han Su Kim, Lindsey E Shapiro, Jae Sung Lee, James H Kaan, John D Jackson, James J Yoo, Anthony Atala, Sang Jin Lee
For treatments requiring split-thickness skin grafts, it is preferable to mesh the grafts. This reduces the amount of excised skin and covers more wound area. The mesh technique, however, destroys surface continuity, which results in scarring. Strain-based bioreactors, on the other hand, have successfully expanded split-thickness skin grafts in vitro within a 7-day period, increasing graft coverage. After in vitro expansion, the expanded skin grafts were tested in a porcine full-thickness excisional wound model...
May 24, 2017: Wound Repair and Regeneration
https://www.readbyqxmd.com/read/28544284/the-national-healthcare-system-claims-databases-in-france-sniiram-and-egb-powerful-tools-for-pharmacoepidemiology
#7
Julien Bezin, Mai Duong, Régis Lassalle, Cécile Droz, Antoine Pariente, Patrick Blin, Nicholas Moore
The French health care system is based on universal coverage by one of several health care insurance plans. The SNIIRAM database merges anonymous information of reimbursed claims from all these plans, linked to the national hospital-discharge summaries database system (PMSI) and the national death registry. It now covers 98.8% of the French population, over 66 million persons, from birth (or immigration) to death (or emigration), making it possibly the world's largest continuous homogeneous claims database...
May 24, 2017: Pharmacoepidemiology and Drug Safety
https://www.readbyqxmd.com/read/28542318/predicting-congenital-heart-defects-a-comparison-of-three-data-mining-methods
#8
Yanhong Luo, Zhi Li, Husheng Guo, Hongyan Cao, Chunying Song, Xingping Guo, Yanbo Zhang
Congenital heart defects (CHD) is one of the most common birth defects in China. Many studies have examined risk factors for CHD, but their predictive abilities have not been evaluated. In particular, few studies have attempted to predict risks of CHD from, necessarily unbalanced, population-based cross-sectional data. Therefore, we developed and validated machine learning models for predicting, before and during pregnancy, women's risks of bearing children with CHD. We compared the results of these models in a large-scale, comprehensive population-based retrospective cross-sectional epidemiological survey of birth defects in six counties in Shanxi Province, China, covering 2006 to 2008...
2017: PloS One
https://www.readbyqxmd.com/read/28542078/a-population-level-investigation-of-cancer-clinical-trials-participation-in-a-uk-region
#9
Conan B Donnelly, Amy C Wotherspoon, Melanie Morris, Richard H Wilson, Jingwen J Chen, Victoria Cairnduff, Eileen Morgan, Amy Devlin, Anna T Gavin
The aim of this study was to document cancer trial participation since establishment of the Northern Ireland Cancer Trials Network and investigate population and disease factors associated with trial participation. An independent cohort of over 51 000 cancer patients from the Northern Ireland Cancer Registry covering the same population (2007-2012) was linked to a database of 1316 interventional cancer trial participants in a UK region. The primary outcome measure was participation in an intervention clinical trial...
May 24, 2017: European Journal of Cancer Prevention
https://www.readbyqxmd.com/read/28541716/investigational-bet-bromodomain-protein-inhibitors-in-early-stage-clinical-trials-for-acute-myelogenous-leukemia-aml
#10
Thorsten Braun, Claude Gardin
Acute myelogenous leukemia (AML) is a heterogeneous group of malignancies driven by genetic mutations and deregulated epigenetic control. Relapse/refractory disease remains frequent in younger patients and even more so in older patients, including treatment with epigenetic drugs in this age group, mainly with hypomethylating agents. New treatment strategies are urgently needed. The recent discovery that epigenetic readers of the bromodomain (BRD) and extraterminal (BET) protein family, are crucial for AML maintenance by transcription of oncogenic c-MYC lead to rapid development of BET inhibitors entering clinical trials...
May 25, 2017: Expert Opinion on Investigational Drugs
https://www.readbyqxmd.com/read/28541413/the-influence-of-the-apolipoprotein-e-apoe-gene-on-subacute-post-concussion-neurocognitive-performance-in-college-athletes
#11
Victoria C Merritt, Amanda R Rabinowitz, Peter A Arnett
Objective: The purpose of this study was to determine whether the ε4 allele of the APOE gene influences neurocognitive outcome following sports-related concussion. It was hypothesized that participants with an ε4 allele would show poorer neurocognitive performance and greater neurocognitive variability than those without an ε4 allele. Method: Participants included 57 concussed collegiate athletes (77.2% male) who participated in a concussion management program at a large university...
May 24, 2017: Archives of Clinical Neuropsychology: the Official Journal of the National Academy of Neuropsychologists
https://www.readbyqxmd.com/read/28541235/rates-of-childhood-trauma-in-a-sample-of-university-students-in-greece-the-greek-version-of-the-early-trauma-inventory-self-report
#12
Z Antonopoulou, G Konstantakopoulos, M Τzinieri-Coccosis, C Sinodinou
The self-report Early Trauma Inventory (ETI-SR-SF) was developed by Bremner et al in 2007 and has been proven a valid tool for the assessment of childhood trauma. The inventory covers four types of traumatic experiences: general trauma, physical abuse, emotional abuse and sexual abuse. The primary aim of the present study was to assess the internal consistency, test-retest reliability, convergent validity and factor structure of the Greek version of the ETI-SR-SF. The study sample consisted of 605 individuals (402 women), undergraduate and postgraduate students of Athens universities with a mean age of 24...
January 2017: Psychiatrikē, Psychiatriki
https://www.readbyqxmd.com/read/28540737/investigational-drugs-in-phase-i-and-phase-ii-clinical-trials-for-thalassemia
#13
Irene Motta, Natalia Scaramellini, Maria Domenica Cappellini
Regular transfusion and iron chelation are the current treatment of severe forms of thalassemia. As a result of this demanding supportive treatment, there are several unmet therapeutic needs. Due to a deeper understanding in the pathophysiology of thalassemia, new therapeutic strategies have been developed that are now in pre-clinical and clinical trials. Areas covered: Activin receptor ligand traps (luspatercept and sotatercept), drugs targeting ineffective erythropoiesis, showed encouraging results in Phase I and II clinical trials...
May 25, 2017: Expert Opinion on Investigational Drugs
https://www.readbyqxmd.com/read/28540432/central-overweight-and-obesity-in-polish-schoolchildren-aged-7-18%C3%A2-years-secular-changes-of-waist-circumference-between-1966-and-2012
#14
Agnieszka Suder, Aleksandra Gomula, Slawomir Koziel
We investigated secular trends of body mass index (BMI) and waist circumference (WC) in Polish schoolchildren examined through a period of almost 50 years. Data on height, weight and WC came from four cross-sectional surveys conducted in Poland between 1966 and 2012, covering 34,005 boys and 34,008 girls. Raw data of BMI and WC were standardized for age classes. Statistical analyses included the Kruskal-Willis test and Pearson Chi-square test. BMI and WC increased during the studied period; however, the growth was higher for WC (increase by 0...
May 24, 2017: European Journal of Pediatrics
https://www.readbyqxmd.com/read/28539215/comparison-and-validation-of-an-in-vitro-skin-sensitization-strategy-using-a-data-set-of-33-chemical-references
#15
Elodie Clouet, Saadia Kerdine-Römer, Pierre-Jacques Ferret
Allergic contact dermatitis (ACD) is an adverse health effect that develops following repeated exposure to skin sensitizing chemicals. An animal testing ban has been applied in EU, leading to development of reliably predictive non-animal methods. Several in vitro methods have been developed as alternatives but one single non-animal test method is not been sufficient to fully address since the LLNA test ban. Here, we have selected an ITS (Integrated Testing Strategy) for skin sensitization which focuses on three in vitro methods that covered the first three steps of the AOP (DPRA, SENS-IS or h-CLAT)...
May 21, 2017: Toxicology in Vitro: An International Journal Published in Association with BIBRA
https://www.readbyqxmd.com/read/28539067/multitask-protocols-to-evaluate-activities-of-daily-living-performance-in-people-with-copd-a-systematic-review
#16
Thaís Paes, Felipe Vilaça Cavallari Machado, Vinícius Cavalheri, Fabio Pitta, Nidia Aparecida Hernandes
People with chronic obstructive pulmonary disease (COPD) present symptoms such as dyspnea and fatigue, which hinder their performance in activities of daily living (ADL). A few multitask protocols have been developed to assess ADL performance in this population, although measurement properties of such protocols were not yet systematically reviewed. Areas covered: Studies were included if an assessment of the ability to perform ADL was conducted in people with COPD using a (objective) performance-based protocol...
May 24, 2017: Expert Review of Respiratory Medicine
https://www.readbyqxmd.com/read/28538203/uhplc-ms-ms-method-with-sample-dilution-to-test-therapeutic-adherence-through-quantification-of-ten-antihypertensive-drugs-in-urine-samples
#17
Amedeo De Nicolò, Valeria Avataneo, Franco Rabbia, Mauro Sciandra, Francesco Tosello, Jessica Cusato, Elisa Perlo, Paolo Mulatero, Franco Veglio, Giovanni Di Perri, Antonio D'Avolio
Nowadays, hypertension represents an important health problem, particularly in developed countries. In some cases the standard therapeutic approaches are not able to reestablish the normal blood pressure values: this condition is called "resistant hypertension". However, a fraction of cases of resistant hypertension are actually due to poor adherence to the prescribed therapy. Therapeutic Drug Monitoring could represent a direct and useful tool to correctly identify non-compliant patients. Nevertheless, high throughput methods for the simultaneous monitoring of a wide panel of drugs in the same analysis are lacking and, furthermore, there is not a generally acknowledged "standard" matrix for this test (plasma or urine)...
May 13, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28538105/linezolid-induced-lactic-acidosis-the-thin-line-between-bacterial-and-mitochondrial-ribosomes
#18
Alessandro Santini, Dario Ronchi, Manuela Garbellini, Daniela Piga, Alessandro Protti
Introduction - Linezolid inhibits bacterial growth by targeting bacterial ribosomes and by interfering with bacterial protein synthesis. Lactic acidosis is a rare, but potentially lethal, side effect of linezolid. Areas covered - The pathogenesis of linezolid-induced lactic acidosis is reviewed with special emphasis on aspects relevant to the recognition, prevention and treatment of the syndrome. Expert opinion - Linezolid-induced lactic acidosis reflects the untoward interaction between the drug and mitochondrial ribosomes...
May 24, 2017: Expert Opinion on Drug Safety
https://www.readbyqxmd.com/read/28538023/magnetic-resonance-imaging-based-assessment-of-breast-cancer-related-lymphoedema-tissue-composition
#19
Marco Borri, Kristiana D Gordon, Julie C Hughes, Erica D Scurr, Dow-Mu Koh, Martin O Leach, Peter S Mortimer, Maria A Schmidt
OBJECTIVES: The aim of this study was to propose a magnetic resonance imaging acquisition and analysis protocol that uses image segmentation to measure and depict fluid, fat, and muscle volumes in breast cancer-related lymphoedema (BCRL). This study also aims to compare affected and control (unaffected) arms of patients with diagnosed BCRL, providing an analysis of both the volume and the distribution of the different tissue components. MATERIALS AND METHODS: The entire arm was imaged with a fluid-sensitive STIR and a 2-point 3-dimensional T1W gradient-echo-based Dixon sequences, acquired in sagittal orientation and covering the same imaging volume...
May 19, 2017: Investigative Radiology
https://www.readbyqxmd.com/read/28537962/effects-of-affordable-care-act-marketplaces-and-medicaid-eligibility-expansion-on-access-to-cancer-care
#20
John A Graves, Katherine Swartz
PURPOSE: The aim of this study was to inform oncologists about how repealing the Affordable Care Act (ACA) may affect their ability to provide cancer therapies for people with cancer enrolled in ACA health plans and why proposals to change Medicaid funding may make it even more difficult for Medicaid beneficiaries to access cancer treatments. METHODS: We examined the regulations and provisions of the ACA related to how health insurance impacts access to diagnostic testing and treatments for people with cancer, including access to clinical trials...
May 2017: Cancer Journal
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