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Cristiane Ávila Santana, Dinorah Machado Vaz Lima, Luis Humberto da Cunha Andrade, Yzel Rondon Súarez, Sandro Marcio Lima
The aim of this study was to evaluate the fluorescence of Astyanax lacustris fish scales when excited in the UV-A and blue regions for use as a bioindicator of aquatic ecosystems. This species was firstly defined as Astyanax altiparanae, popularly known as "lambari-do-rabo-amarelo". Currently, abiotic/biotic environmental integrity is generally assessed using limnological and physicochemical parameters related to biological indicators in streams or rivers, which are not sufficient to evaluate the real environmental conditions: in some cases, these parameters can be strongly dependent on local weather conditions...
October 8, 2016: Journal of Photochemistry and Photobiology. B, Biology
Hiroko Kubo, Masahito Nakataki, Satsuki Sumitani, Jun-Ichi Iga, Shusuke Numata, Naomi Kameoka, Shin-Ya Watanabe, Hidehiro Umehara, Makoto Kinoshita, Masatoshi Inoshita, Mai Tamaru, Masashi Ohta, Chiaki Nakayama-Yamauchi, Yasuhiro Funakoshi, Masafumi Harada, Tetsuro Ohmori
BACKGROUND: Previous studies of patients with bipolar disorder (BD) using magnetic resonance spectroscopy (MRS) have shown neurophysiological abnormalities related to the glutamate (Glu)-glutamine (Gln) cycle, membrane turnover, and neuronal integrity, although the results were neither consistent nor conclusive. Recently it has been reported the Gln/Glu ratio is the most useful index, quantifying neuronal-glial interactions and the balance of glutamatergic metabolites In this MRS study, we elucidated the abnormalities of metabolites in a larger sample of patients with BD with a high-field MRI system...
October 8, 2016: Journal of Affective Disorders
Fitsum Abadi, Christophe Barbraud, Olivier Gimenez
Early-life demographic traits are poorly known, impeding our understanding of population processes and sensitivity to climate change. Survival of immature individuals is a critical component of population dynamics and recruitment in particular. However, obtaining reliable estimates of juvenile survival (i.e., from independence to first year) remains challenging, as immatures are often difficult to observe and to monitor individually in the field. This is particularly acute for seabirds, in which juveniles stay at sea and remain undetectable for several years...
October 22, 2016: Global Change Biology
Magdalena M Sakowska, Megan V Thomas, Saxon Connor, Ross Roberts
BACKGROUND: In measuring quality of health-care delivery, digital infrastructure is essential. The aim at this tertiary centre was to create a hospital-wide workflow system that collected data prospectively as part of daily practice. METHODS: In moving towards an electronic health record, a hospital-wide integrated workflow system was introduced in 2013, which electronically managed the perioperative patient journey while simultaneously facilitating surgical audit...
October 21, 2016: ANZ Journal of Surgery
Marian Raschke, Bernd-W Igl, Julia Kenny, Joanne Collins, Stephen D Dertinger, Carson Labash, Javed A Bhalli, Cameron C M Tebbe, Kylie M McNeil, Andreas Sutter
The rodent Pig-a assay is an in vivo method for the detection of gene mutation, where lack of glycosylphosphatidylinositol-anchored proteins on the surface of circulating red blood cells (RBCs) serves as a reporter for Pig-a gene mutation. In the case of rats, the frequency of mutant phenotype RBCs is measured via fluorescent anti-CD59 antibodies and flow cytometry. The Pig-a assay meets the growing expectations for novel approaches in animal experimentation not only focusing on the scientific value of the assay but also on animal welfare aspects (3Rs principles), for example, amenable to integration into pivotal rodent 28-day general toxicology studies...
October 22, 2016: Environmental and Molecular Mutagenesis
Wendy Henwood, Helen Moewaka Barnes, Troy Brockbank, Waikarere Gregory, Kaio Hooper, Tim McCreanor
In Aotearoa New Zealand, Māori aspirations around land and water conflict with settler interests. As indigenous people, Māori struggle to enact agency over resources, despite Treaty (Treaty of Waitangi/Te Tiriti o Waitangi is an 1840 agreement between Maori and the crown) settlement processes returning some lands. Returns are complex since changes wrought by dispossession may be extreme, requiring multiple stakeholder engagements. Tāngonge, a heavily modified wetland, in northern Aotearoa New Zealand has been the subject of iwi (tribe or tribes) claims since the 1890s...
October 21, 2016: EcoHealth
Heather Adams, Pascal Thibault, Tamra Ellis, Emily Moore, Michael Sullivan
Background Catastrophic thinking has been associated with occupational disability in individuals with debilitating pain conditions. The relation between catastrophic thinking and occupational disability has not been previously examined in individuals with debilitating mental health conditions. The present study examined the relation between catastrophic thinking and occupational disability in individuals with major depression. Methods The study sample consisted of 80 work-disabled individuals with major depressive disorder (MDD) who were referred to an occupational rehabilitation service...
October 21, 2016: Journal of Occupational Rehabilitation
Bartosz Roszniowski, Agnieszka Latka, Barbara Maciejewska, Dieter Vandenheuvel, Tomasz Olszak, Yves Briers, Giles S Holt, Miguel A Valvano, Rob Lavigne, Darren L Smith, Zuzanna Drulis-Kawa
Burkholderia phage AP3 (vB_BceM_AP3) is a temperate virus of the Myoviridae and the Peduovirinae subfamily (P2likevirus genus). This phage specifically infects multidrug-resistant clinical Burkholderia cenocepacia lineage IIIA strains commonly isolated from cystic fibrosis patients. AP3 exhibits high pairwise nucleotide identity (61.7 %) to Burkholderia phage KS5, specific to the same B. cenocepacia host, and has 46.7-49.5 % identity to phages infecting other species of Burkholderia. The lysis cassette of these related phages has a similar organization (putative antiholin, putative holin, endolysin, and spanins) and shows 29-98 % homology between specific lysis genes, in contrast to Enterobacteria phage P2, the hallmark phage of this genus...
October 21, 2016: Applied Microbiology and Biotechnology
Pengfei Fan, Yang Liu, Zhechun Zhang, Chao Zhao, Cheng Li, Wulin Liu, Zhijin Liu, Ming Li
The white-cheeked macaque Macaca leucogenys is a recently described species that was only diagnosed based on photos, without any specimen measurements or molecular genetic diagnosis. Using extracted DNA from four newly collected skin specimens, we studied the genetic diversity and phylogenetic position of M. leucogenys using multilocus sequence data, including mitochondrial and Y chromosomal genes. Skin measurements of four individuals showed that the white-cheeked macaque is robust and larger than M. assamensis but is similar in body size to M...
October 18, 2016: Molecular Phylogenetics and Evolution
Dennis Toddenroth, Janakan Sivagnanasundaram, Hans-Ulrich Prokosch, Thomas Ganslandt
BACKGROUND: The difficulty of managing patient recruitment and documentation for clinical trials prompts a demand for instruments for closely monitoring these critical but unpredictable processes. Increasingly adopted Electronic Data Capture (EDC) applications provide novel opportunities to reutilize stored information for an efficient management of traceable trial workflows. In related clinical and administrative settings, so-called digital dashboards that continuously visualize time-dependent parameters have recently met a growing acceptance...
October 18, 2016: Journal of Biomedical Informatics
Dimosthenis A Sarigiannis, Spyros P Karakitsios, Evangelos Handakas, Konstantina Simou, Ermioni Solomou, Alberto Gotti
The current study aims at a comprehensive risk characterization of bisphenol A (BPA) supported by an integrated exposure modelling framework that comprises far field and near field exposure modelling coupled to a dynamic lifetime PBTK model. Exposure analysis was done on European data of BPA food residues and human biomonitoring (HBM). The latter were further assimilated through an advanced exposure reconstruction modelling framework to estimate the corresponding external and internal systemic dose of BPA and its metabolites...
October 18, 2016: Food and Chemical Toxicology
A D Surowka, M Töpperwien, M Bernhardt, J D Nicolas, M Osterhoff, T Salditt, D Adamek, M Szczerbowska-Boruchowska
Human dopaminergic system in general, and substantia nigra (SN) neurons, in particular, are implicated in the pathologies underlying the human brain aging. The interplay between aberrations in the structural organization and elemental composition of SN neuron bodies has recently gained in importance as selected metals: Fe, Cu, Zn, Ca were found to trigger oxidative-stress-mediated aberration in their molecular assembly due to concomitant protein (alpha-synuclein, tau-protein) aggregation, gliosis and finally oxidative stress...
December 1, 2016: Talanta
Sarah A Moore, Ruth Da Silva, Madelaine Balaam, Lianne Brkic, Dan Jackson, Dan Jamieson, Thomas Ploetz, Helen Rodgers, Lisa Shaw, Frederike van Wijck, Christopher Price
BACKGROUND: Loss of upper limb function affects up to 85 % of acute stroke patients. Recovery of upper limb function requires regular intensive practise of specific upper limb tasks. To enhance intensity of practice interventions are being developed to encourage patients to undertake self-directed exercise practice. Most interventions do not translate well into everyday activities and stroke patients continue to find it difficult remembering integration of upper limb movements into daily activities...
October 21, 2016: Trials
Lei Shi, Wenfa Zhang, Fagui Zou, Lihua Mei, Gang Wu, Yong Teng
BACKGROUND: Hepatocellular carcinoma (HCC) has very high prevalence and associated-mortality. However, targeted therapies that are currently used in clinical practice for HCC have certain limitations, in part because of the lack of reliable and clinically applicable biomarkers that can be used for diagnosis and prognosis assessments and for the surveillance of treatment effectiveness. METHODS: Meta-analysis was used to analyze the integrated microarray data for global identification of a set of robust biomarkers for HCC...
October 21, 2016: BMC Cancer
Denice Kamugumya, Jill Olivier
BACKGROUND: Public-private partnership (PPP) has been suggested as a tool to assist governments in lower to middle income countries fulfil their responsibilities in the efficient delivery of health services. In Tanzania, although the idea of PPP has existed for many years in the health sector, there has been limited coordination, especially at a district level - which has contributed to limited health gains or systems strengthening obviously seen as a result of PPP. METHODS: This case study was conducted in the Bagamoyo district of Tanzania, and employed in-depth interviews, document reviews, and observations methods...
October 21, 2016: BMC Health Services Research
Mulugeta Dile Worke, Lealem Meseret Bezabih, Mulat Adefris Woldetasdik
BACKGROUND: Contraception helps to prevent unplanned pregnancies among human immune virus positive women. The contraceptive utilization status and associated factors were not well addressed in the study area. Therefore, this study aimed to assess utilization of contraceptives and associated factors among human immune virus positive reproductive age group women appearing at anti-retroviral therapy clinic at the University of Gondar Hospital, North West Ethiopia. METHOD: An institution based cross-sectional study was conducted among 397 systematically selected HIV positive reproductive age women who visited ART unit of the University of Gondar teaching referral hospital from January 8-20, 2014...
October 21, 2016: BMC Women's Health
Chaoyun Hao, Zhiqiang Xia, Rui Fan, Lehe Tan, Lisong Hu, Baoduo Wu, Huasong Wu
BACKGROUND: Piper nigrum L., or "black pepper", is an economically important spice crop in tropical regions. Black pepper production is markedly affected by foot rot disease caused by Phytophthora capsici, and genetic improvement of black pepper is essential for combating foot rot diseases. However, little is known about the mechanism of anti- P. capsici in black pepper. The molecular mechanisms underlying foot rot susceptibility were studied by comparing transcriptome analysis between resistant (Piper flaviflorum) and susceptible (Piper nigrum cv...
October 21, 2016: BMC Genomics
Sergi Sayols, Denise Scherzinger, Holger Klein
BACKGROUND: PCR clonal artefacts originating from NGS library preparation can affect both genomic as well as RNA-Seq applications when protocols are pushed to their limits. In RNA-Seq however the artifactual reads are not easy to tell apart from normal read duplication due to natural over-sequencing of highly expressed genes. Especially when working with little input material or single cells assessing the fraction of duplicate reads is an important quality control step for NGS data sets...
October 21, 2016: BMC Bioinformatics
Richard C Harrington, Brant C Faircloth, Ron I Eytan, W Leo Smith, Thomas J Near, Michael E Alfaro, Matt Friedman
BACKGROUND: Flatfish cranial asymmetry represents one of the most remarkable morphological innovations among vertebrates, and has fueled vigorous debate on the manner and rate at which strikingly divergent phenotypes evolve. A surprising result of many recent molecular phylogenetic studies is the lack of support for flatfish monophyly, where increasingly larger DNA datasets of up to 23 loci have either yielded a weakly supported flatfish clade or indicated the group is polyphyletic. Lack of resolution for flatfish relationships has been attributed to analytical limitations for dealing with processes such as nucleotide non-stationarity and incomplete lineage sorting (ILS)...
October 21, 2016: BMC Evolutionary Biology
Jan Forber, Michelle DiGiacomo, Bernie Carter, Patricia Davidson, Jane Phillips, Debra Jackson
Clinical learning experiences are an essential part of nurse education programs. Numerous approaches to clinical education and student supervision exist. The aim of this integrative review was to explore how studies have compared or contrasted different models of undergraduate nurse clinical education. A search of eight databases was undertaken to identify peer-reviewed literature published between 2006 and 2015. Eighteen studies met the inclusion criteria. A diverse range of methodologies and data collection methods were represented, which primarily explored student experiences or perceptions...
September 30, 2016: Nurse Education in Practice
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