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https://www.readbyqxmd.com/read/29045947/prediction-of-the-future-need-for-institutional-care-in-finnish-older-people-a-comparison-of-two-birth-cohorts
#1
Marika Salminen, Sini Eloranta, Jenni Vire, Paula Viikari, Laura Viikari, Tero Vahlberg, Aapo Lehtonen, Seija Arve, Maarit Wuorela, Matti Viitanen
BACKGROUND: More recent birth cohorts of older people have better physical and cognitive status than earlier cohorts. As such, this could be expected to diminish the need for institutional care. The prediction of the future need for institutional care provides essential information for the planning and delivery of future care and social services as well as the resources needed. OBJECTIVE: To predict the future need for institutional care among older Finnish people born in 1940...
October 19, 2017: Gerontology
https://www.readbyqxmd.com/read/29045938/effectiveness-of-nivolumab-versus-docetaxel-as-second-line-treatment-in-non-small-cell-lung-cancer-patients-in-clinical-practice
#2
Pablo Calpe-Armero, Rafael Ferriols-Lisart, Francisco Ferriols-Lisart, Alejandro Pérez-Pitarch
AIMS: To evaluate the effectiveness of nivolumab as second-line treatment compared to standard therapy with docetaxel in adult patients with non-small cell lung cancer (NSCLC) in clinical practice. METHODS: This is an observational, retrospective cohort study of adult patients diagnosed with NSCLC, stage III-IV, treated with docetaxel or nivolumab as second-line treatment. The end points evaluated were overall survival (OS) and progression-free survival (PFS). PFS and OS were described using the Kaplan-Meier method...
October 19, 2017: Chemotherapy
https://www.readbyqxmd.com/read/29045908/long-term-exposure-to-residential-railway-and-road-traffic-noise-and-risk-for-diabetes-in-a-danish-cohort
#3
Nina Roswall, Ole Raaschou-Nielsen, Steen Solvang Jensen, Anne Tjønneland, Mette Sørensen
BACKGROUND: Road traffic noise exposure has been found associated with diabetes incidence. Evidence for an association between railway noise exposure is less clear, as large studies with detailed railway noise modelling are lacking. PURPOSE: To investigate the association between residential railway noise and diabetes incidence, and to repeat previous analyses on road traffic noise and diabetes with longer follow-up time. METHODS: Among 50,534 middle-aged Danes enrolled into the Diet, Cancer and Health cohort from 1993 to 97, we identified 5062 cases of incident diabetes during a median follow-up of 15...
October 15, 2017: Environmental Research
https://www.readbyqxmd.com/read/29045883/in-vitro-in-vivo-correlations-of-carbamazepine-nano-dispersions-for-application-in-formulation-development
#4
Zachary Warnken, Michael Puppolo, Justin Hughey, Iris Duarte, Susan Jansen-Varnum
During formulation development, efficiently integrating in vitro dissolution testing can significantly improve one's ability to estimate in vivo performance and aide in the selection of premier drug candidates. The concept of in vitro - in vivo relationship/correlation (IVIVR/IVIVC) has garnered significant attention from pharmaceutical scientists to predict expected bioavailability characteristics for drug substances and products. The current work illustrates a comparative evaluation of in vitro tests to access crystalline carbamazepine and various types of amorphous and crystalline dispersions of carbamazepine and Eudragit L100 produced by spray-drying, including a membrane-permeation dissolution methodology and non-sink dissolution...
October 15, 2017: Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/29045882/untangling-the-hairball-fitness-based-asymptotic-reduction-of-biological-networks
#5
Félix Proulx-Giraldeau, Thomas J Rademaker, Paul François
Complex mathematical models of interaction networks are routinely used for prediction in systems biology. However, it is difficult to reconcile network complexities with a formal understanding of their behavior. Here, we propose a simple procedure (called ϕ¯) to reduce biological models to functional submodules, using statistical mechanics of complex systems combined with a fitness-based approach inspired by in silico evolution. The ϕ¯ algorithm works by putting parameters or combination of parameters to some asymptotic limit, while keeping (or slightly improving) the model performance, and requires parameter symmetry breaking for more complex models...
October 17, 2017: Biophysical Journal
https://www.readbyqxmd.com/read/29045875/the-effect-of-solutes-on-the-temperature-of-miscibility-transitions-in-multicomponent-membranes
#6
David W Allender, M Schick
We address questions posed by experiments that show small-chain alcohols reduce the miscibility transition temperature when added to giant plasma membrane vesicles (GPMVs), but increase that temperature when added to giant unilamellar vesicles. In giant unilamellar vesicles the change in temperature displays a definite minimum, between decanol and tetradecanol, as a function of alcohol chain length; in GPMVs there is no such minimum. To emphasize the competition between internal entropies of the components and the interactions between them, we model the system as consisting of three different linear polymers...
October 17, 2017: Biophysical Journal
https://www.readbyqxmd.com/read/29045866/how-many-protein-sequences-fold-to-a-given-structure-a-coevolutionary-analysis
#7
Pengfei Tian, Robert B Best
Quantifying the relationship between protein sequence and structure is key to understanding the protein universe. A fundamental measure of this relationship is the total number of amino acid sequences that can fold to a target protein structure, known as the "sequence capacity," which has been suggested as a proxy for how designable a given protein fold is. Although sequence capacity has been extensively studied using lattice models and theory, numerical estimates for real protein structures are currently lacking...
October 17, 2017: Biophysical Journal
https://www.readbyqxmd.com/read/29045859/role-of-condensing-particles-in-polymer-confinement-a-model-for-virus-packed-minichromosomes
#8
Sanjin Marion, Carmen San Martín, Antonio Šiber
Confined mixtures of a polymer and nonspecifically binding particles (condensers) are studied as models for viruses containing double-stranded DNA (polymer) and condensing proteins (particles). We explore a model in which all interactions between the packed content (polymer and particles) and its confinement are purely repulsive, with only a short-range attraction between the condensers and polymer to simulate binding. In the range of physical parameters applicable to viruses, the model predicts reduction of pressure in the system effected by the condensers, despite the reduction in free volume...
October 17, 2017: Biophysical Journal
https://www.readbyqxmd.com/read/29045814/role-of-kcc2-dependent-potassium-efflux-in-4-aminopyridine-induced-epileptiform-synchronization
#9
Oscar C González, Zahra Shiri, Giri P Krishnan, Timothy L Myers, Sylvain Williams, Massimo Avoli, Maxim Bazhenov
A balance between excitation and inhibition is necessary to maintain stable brain network dynamics. Traditionally, seizure activity is believed to arise from the breakdown of this delicate balance in favor of excitation with loss of inhibition. Surprisingly, recent experimental evidence suggests that this conventional view may be limited, and that inhibition plays a prominent role in the development of epileptiform synchronization. Here, we explored the role of the KCC2 co-transporter in the onset of inhibitory network-induced seizures...
October 15, 2017: Neurobiology of Disease
https://www.readbyqxmd.com/read/29045749/immune-checkpoint-inhibitor-related-myocarditis
#10
Kazuko Tajiri, Kazutaka Aonuma, Ikuo Sekine
Immune checkpoint inhibitors have demonstrated significant clinical benefit in many cancers. The clinical benefit afforded by these treatments can be accompanied by a unique and distinct spectrum of adverse events. Recently, several fatal cases of immune checkpoint inhibitor-related myocarditis were reported. Although its frequency is comparatively lower than that of other immune-related adverse events, myocarditis can lead to circulatory collapse and lethal ventricular arrhythmia. Immune checkpoints, cytotoxic T-lymphocyte antigen 4 (CTLA-4) and programmed cell death protein 1 (PD-1), play important roles in establishing peripheral tolerance to the heart...
October 17, 2017: Japanese Journal of Clinical Oncology
https://www.readbyqxmd.com/read/29045746/identification-of-natural-products-as-inhibitors-of-human-organic-anion-transporters-oat1-and-oat3-and-their-protective-effect-on-mercury-induced-toxicity
#11
Xue Wang, Lifeng Han, Gentao Li, Wei Peng, Xiumei Gao, Curtis D Klaassen, Guanwei Fan, Youcai Zhang
Mercury accumulates in kidneys and produces acute kidney injury. Semen cassiae (SC), a widely consumed tea and herbal medicine in Eastern Asia, has been reported to have protective effects on kidneys. In this study, SC extract was shown to almost abolish the histological alterations induced by mercuric chloride (HgCl2) in rat kidneys. A total of 22 compounds were isolated from SC, and 1,7,8-methoxyl-2-hydroxyl-3-methyl-anthraquinone was detected in SC for the first time. Among the 8 compounds identified in the blood of rats after SC treatment, 6 were strong inhibitors of human organic anion transporter 1 and 3 (OAT1 and OAT3)...
October 13, 2017: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/29045741/respiratory-syncytial-virus-genotypes-host-immune-profiles-and-disease-severity-in-young-children-hospitalized-with-bronchiolitis
#12
Rosa Rodriguez-Fernandez, Lorena I Tapia, Chin-Fen Yang, Juan Pablo Torres, Susana Chavez-Bueno, Carla Garcia, Lisa M Jaramillo, Melissa Moore-Clingenpeel, Hasan S Jafri, Mark E Peeples, Pedro A Piedra, Octavio Ramilo, Asuncion Mejias
Background: Data on how RSV genotypes influence disease severity and host immune responses is limited. We characterized the genetic variability of RSV during five seasons, and evaluated the role of RSV subtypes, genotypes and viral loads on disease severity and host transcriptional profiles. Methods: Prospective, observational study including a convenience sample of healthy infants hospitalized with RSV bronchiolitis. Nasopharyngeal samples for viral load quantitation, typing and genotyping, and blood samples for transcriptome analyses were obtained within 24h of hospitalization...
October 17, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/29045735/seasonal-variation-and-dengue-burden-in-paediatric-patients-in-new-delhi
#13
Manas Pratim Roy, Ratan Gupta, Nidhi Chopra, Satish Kumar Meena, Kailash Chander Aggarwal
Objective: We conducted a study to find a relationship between main weather parameters with admission of positive dengue cases in a tertiary hospital. Methods: Retrospective analysis was undertaken to identify epidemiological trend of dengue in 2016 from paediatric wards of a tertiary hospital in New Delhi. Data were collected on patient particulars and daily weather from January to December 2016. Results: A total of 266 confirmed cases of dengue were considered...
October 17, 2017: Journal of Tropical Pediatrics
https://www.readbyqxmd.com/read/29045732/life-history-adaptations-to-seasonality
#14
Øystein Varpe
Seasonality creates a template for many natural processes and evolutionary adaptations. Organisms are often faced with an annual cycle consisting of a productive (favorable) and unproductive period. This yearly cycle along with other seasonal variations in abiotic factors and associated biotic interactions form strong selection pressures shaping the scheduling of annual activities and the developmental stages and modes of life through the year. Annual decisions impact trade-offs that involve both current and future reproductive value (RV), and life history theory provides the foundation to understand these linkages between phenology and an organism's full life...
October 16, 2017: Integrative and Comparative Biology
https://www.readbyqxmd.com/read/29045700/prediction-model-of-critical-weight-loss-in-cancer-patients-during-particle-therapy
#15
Zhihong Zhang, Y Zhu, Lijuan Zhang, Ziying Wang, Hongwei Wan
Background and purpose: The objective of this study is to investigate the predictors of critical weight loss in cancer patients receiving particle therapy, and build a prediction model based on its predictive factors. Materials and methods: Patients receiving particle therapy were enroled between June 2015 and June 2016. Body weight was measured at the start and end of particle therapy. Association between critical weight loss (defined as >5%) during particle therapy and patients' demographic, clinical characteristic, pre-therapeutic nutrition risk screening (NRS 2002) and BMI were evaluated by logistic regression and decision tree analysis...
October 17, 2017: Japanese Journal of Clinical Oncology
https://www.readbyqxmd.com/read/29045685/micrornas-and-complex-diseases-from-experimental-results-to-computational-models
#16
Xing Chen, Di Xie, Qi Zhao, Zhu-Hong You
Plenty of microRNAs (miRNAs) were discovered at a rapid pace in plants, green algae, viruses and animals. As one of the most important components in the cell, miRNAs play a growing important role in various essential and important biological processes. For the recent few decades, amounts of experimental methods and computational models have been designed and implemented to identify novel miRNA-disease associations. In this review, the functions of miRNAs, miRNA-target interactions, miRNA-disease associations and some important publicly available miRNA-related databases were discussed in detail...
October 17, 2017: Briefings in Bioinformatics
https://www.readbyqxmd.com/read/29045655/determinants-of-the-efficacy-of-natural-selection-on-coding-and-noncoding-variability-in-two-passerine-species
#17
Pádraic Corcoran, Toni I Gossmann, Henry J Barton, Jon Slate, Kai Zeng
Population genetic theory predicts that selection should be more effective when the effective population size (Ne) is larger, and that the efficacy of selection should correlate positively with recombination rate. Here, we analysed the genomes of 10 great tits and 10 zebra finches. Nucleotide diversity at 4-fold degenerate sites indicates that zebra finches have a 2.83-fold larger Ne. We obtained clear evidence that purifying selection is more effective in zebra finches. The proportion of substitutions at 0-fold degenerate sites fixed by positive selection (α) is high in both species (great tit 48%; zebra finch 64%) and is significantly higher in zebra finches...
October 17, 2017: Genome Biology and Evolution
https://www.readbyqxmd.com/read/29045649/understanding-evolutionary-impacts-of-seasonality-an-introduction-to-the-symposium
#18
Caroline M Williams, Gregory J Ragland, Gustavo Betini, Lauren B Buckley, Zachary A Cheviron, Kathleen Donohue, Joe Hereford, Murray M Humphries, Simeon Lisovski, Katie E Marshall, Paul S Schmidt, Kimberly S Sheldon, Øystein Varpe, Marcel E Visser
Seasonality is a critically important aspect of environmental variability, and strongly shapes all aspects of life for organisms living in highly seasonal environments. Seasonality has played a key role in generating biodiversity, and has driven the evolution of extreme physiological adaptations and behaviors such as migration and hibernation. Fluctuating selection pressures on survival and fecundity between summer and winter provide a complex selective landscape, which can be met by a combination of three outcomes of adaptive evolution: genetic polymorphism, phenotypic plasticity, and bet-hedging...
October 16, 2017: Integrative and Comparative Biology
https://www.readbyqxmd.com/read/29045633/ventricular-arrhythmia-and-sudden-cardiac-death-in-fabry-disease-a-systematic-review-of-risk-factors-in-clinical-practice
#19
Shanat Baig, Nicky C Edward, Dipak Kotecha, Boyang Liu, Sabrina Nordin, Rebecca Kozor, James C Moon, Tarekegn Geberhiwot, Richard P Steeds
Fabry disease (FD) is an X-linked lysosomal storage disorder caused by deficiency of α-galactosidase A enzyme. Cardiovascular (CV) disease is a common cause of mortality in FD, in particular as a result of heart failure and arrhythmia, with a significant proportion of events categorized as sudden. There are no clear models for risk prediction in FD. This systematic review aims to identify the risk factors for ventricular arrhythmia (VA) and sudden cardiac deaths (SCD) in FD. A systematic search was performed following PRISMA guidelines of EMBASE, Medline, PubMed, Web of Science, and Cochrane from inception to August 2016, focusing on identification of risk factors for the development of VA or SCD...
October 17, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/29045610/high-sensitivity-cardiac-troponin-i-and-risk-of-heart-failure-in-patients-with-suspected-acute-coronary-syndrome-a-cohort-study
#20
Dominik Stelzle, Anoop S V Shah, Atul Anand, Fiona E Strachan, Andrew R Chapman, Martin A Denvir, Nicholas L Mills, David A McAllister
Aims: Heart failure may occur following acute myocardial infarction, but with the use of high-sensitivity cardiac troponin assays we increasingly diagnose patients with minor myocardial injury. Whether troponin concentrations remain a useful predictor of heart failure in patients with acute coronary syndrome is uncertain. Methods and results: We identified all consecutive patients (n = 4748) with suspected acute coronary syndrome (61 ± 16 years, 57% male) presenting to three secondary and tertiary care hospitals...
July 19, 2017: European Heart Journal. Quality of Care & Clinical Outcomes
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