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https://www.readbyqxmd.com/read/28934747/untangling-longevity-dauer-and-healthspan-in-caenorhabditis-elegans-insulin-igf-1-signalling
#1
Collin Yvès Ewald, Jorge Iván Castillo-Quan, T Keith Blackwell
The groundbreaking discovery that lower levels of insulin/IGF-1 signaling (IIS) can induce lifespan extension was reported 24 years ago in the nematode Caenorhabditis elegans. In this organism, mutations in the insulin/IGF-1 receptor gene daf-2 or other genes in this pathway can double lifespan. Subsequent work has revealed that reduced IIS (rIIS) extends lifespan across diverse species, possibly including humans. In C. elegans, IIS also regulates development into the diapause state known as dauer, a quiescent larval form that enables C...
September 22, 2017: Gerontology
https://www.readbyqxmd.com/read/28934591/combining-traditional-mutagenesis-with-new-high-throughput-sequencing-and-genome-editing-to-reveal-hidden-variation-in-polyploid-wheat
#2
Cristobal Uauy, Brande B H Wulff, Jorge Dubcovsky
Induced mutations have been used to generate novel variation for breeding purposes since the early 1900s. However, the combination of this old technology with the new capabilities of high-throughput sequencing has resulted in powerful reverse genetic approaches in polyploid crops. Sequencing genomes or exomes of large mutant populations can generate extensive databases of mutations for most genes. These mutant collections, together with genome editing, are being used in polyploid species to combine mutations in all copies of a gene (homoeologs), and to expose phenotypic variation that was previously hidden by functional redundancy among homoeologs...
September 20, 2017: Annual Review of Genetics
https://www.readbyqxmd.com/read/28933673/making-history-critical
#3
Mark Learmonth
Purpose The purpose of this paper is to explore a possible discursive history of National Health Service (NHS) "management" (with management, for reasons that will become evident, very much in scare quotes). Such a history is offered as a complement, as well as a counterpoint, to the more traditional approaches that have already been taken to the history of the issue. Design/methodology/approach Document analysis and interviews with UK NHS trust chief executives. Findings After explicating the assumptions of the method it suggests, through a range of empirical sources that the NHS has undergone an era of administration, an era of management and an era of leadership...
August 21, 2017: Journal of Health Organization and Management
https://www.readbyqxmd.com/read/28933368/biomarkers-and-imaging-findings-of-anderson-fabry-disease-what-we-know-now
#4
REVIEW
Idalina Beirão, Ana Cabrita, Márcia Torres, Fernando Silva, Patrício Aguiar, Francisco Laranjeira, Ana Marta Gomes
Anderson-Fabry disease (AFD) is an X-linked lysosomal storage disorder, caused by deficiency or absence of the alpha-galactosidase A activity, with a consequent glycosphingolipid accumulation. Biomarkers and imaging findings may be useful for diagnosis, identification of an organ involvement, therapy monitoring and prognosis. The aim of this article is to review the current available literature on biomarkers and imaging findings of AFD patients. An extensive bibliographic review from PubMed, Medline and Clinical Key databases was performed by a group of experts from nephrology, neurology, genetics, cardiology and internal medicine, aiming for consensus...
June 11, 2017: Diseases (Basel)
https://www.readbyqxmd.com/read/28932935/a-mixed-methods-evaluation-of-paediatric-trainee-preparedness-to-manage-cardiopulmonary-arrests
#5
Órla Walsh, Sinéad Lydon, Paul O'Connor
Paediatric cardiopulmonary arrest (CPA) survival rates are strongly linked to the training of the doctors responding to the event. This study sought to characterise the level of experience in managing CPAs among paediatric trainees and to investigate the nontechnical (NTS) required to effectively lead a paediatric CPA team. A mixed-methods research design was used. For the quantitative phase, a questionnaire was developed to assess training, confidence, and experiences related to CPA management. During the qualitative phase, 17 paediatric trainees participated in a series of critical incident technique (CIT) interviews to explore the NTS used during the management of paediatric CPAs...
September 21, 2017: European Journal of Pediatrics
https://www.readbyqxmd.com/read/28932817/designing-biomaterials-with-immunomodulatory-properties-for-tissue-engineering-and-regenerative-medicine
#6
REVIEW
James I Andorko, Christopher M Jewell
Recent research in the vaccine and immunotherapy fields has revealed that biomaterials have the ability to activate immune pathways, even in the absence of other immune-stimulating signals. Intriguingly, new studies reveal these responses are influenced by the physicochemical properties of the material. Nearly all of this work has been done in the vaccine and immunotherapy fields, but there is tremendous opportunity to apply this same knowledge to tissue engineering and regenerative medicine. This review discusses recent findings that reveal how material properties-size, shape, chemical functionality-impact immune response, and links these changes to emerging opportunities in tissue engineering and regenerative medicine...
June 2017: Bioengineering & Translational Medicine
https://www.readbyqxmd.com/read/28932336/genetics-in-keratoconus-what-is-new
#7
Sarah Moussa, Günther Grabner, Josef Ruckhofer, Marie Dietrich, Herbert Reitsamer
BACKGROUND: Keratoconus is characterized as a bilateral, progressive, non-inflammatory thinning of the cornea resulting in blurred vision due to irregular astigmatism. Keratoconus has a multifactorial etiology, with multiple genetic and environmental components contributing to the disease pathophysiology. Several genomic loci and genes have been identified that highlight the complex molecular etiology of this disease. CONCLUSION: The review focuses on current knowledge of these genetic risk factors associated with keratoconus...
2017: Open Ophthalmology Journal
https://www.readbyqxmd.com/read/28932181/invasive-intraneural-interfaces-foreign-body-reaction-issues
#8
REVIEW
Fiorenza Lotti, Federico Ranieri, Gianluca Vadalà, Loredana Zollo, Giovanni Di Pino
Intraneural interfaces are stimulation/registration devices designed to couple the peripheral nervous system (PNS) with the environment. Over the last years, their use has increased in a wide range of applications, such as the control of a new generation of neural-interfaced prostheses. At present, the success of this technology is limited by an electrical impedance increase, due to an inflammatory response called foreign body reaction (FBR), which leads to the formation of a fibrotic tissue around the interface, eventually causing an inefficient transduction of the electrical signal...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28930271/a-reassessment-of-the-marrubium-vulgare-l-herb-s-potential-role-in-diabetes-mellitus-type-2-first-results-guide-the-investigation-toward-new-horizons
#9
Javier Rodríguez Villanueva, Jorge Martín Esteban, Laura Rodríguez Villanueva
Despite the wide variety of pharmacological activities described for the Marrubium vulgare L. herb, amazingly, only one clinical trial can be found in scientific literature. It was designed for the evaluation of its antidiabetic activity. Worse, the outcomes of this trial were contradictory to what previous in vivo mice assays had concluded. Therefore, should Marrubium vulgare be ruled out due to its lack of therapeutic potential in diabetes? The authors suggest a reevaluation of the clinical trial methodology to establish valid and final results...
August 2, 2017: Medicines (Basel, Switzerland)
https://www.readbyqxmd.com/read/28930256/vetiver-essential-oil-in-cosmetics-what-is-new
#10
Pauline Burger, Anne Landreau, Marie Watson, Laurent Janci, Viviane Cassisa, Marie Kempf, Stéphane Azoulay, Xavier Fernandez
Background: Vetiver is a key ingredient for the perfume industry nowadays. However, with the constant and rapid changes of personal tastes, this appeal could vanish and this sector could decline quite quickly. New dissemination paths need to be found to tap this valuable resource. Methods: In this way, its potential use in cosmetics either as an active ingredient per se (with cosmeceutical significance or presenting antimicrobial activity) has hence been explored in vitro. Results: In this contribution, we demonstrated that vetiver essential oil displays no particularly significant and innovative cosmetic potential value in formulations apart from its scent already largely exploited...
June 16, 2017: Medicines (Basel, Switzerland)
https://www.readbyqxmd.com/read/28930177/molecules-new-aims-and-scope
#11
EDITORIAL
Derek J McPhee
As we approach the end of our 22nd year as the pioneering and preeminent Open Access journal in the field of organic chemistry and natural products, time has come to formally announce what has been the de facto reality of the journal for the past few years, the expansion of the range of topics we cover.[...].
September 20, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28930064/increasing-alcohol-taxes-analysis-of-case-studies-from-illinois-maryland-and-massachusetts
#12
Rebecca L Ramirez, David H Jernigan
OBJECTIVE: The effectiveness of alcohol taxes in reducing excessive alcohol consumption and related problems is well established in research, yet increases in U.S. state alcohol taxes are uncommon. This study examined how alcohol tax increases occurred recently in three U.S. states, what public health's role was, and what can be learned from those experiences. METHOD: Review of available documentation and news media content analysis provided context and, along with snowball sampling, helped identify proponents, opponents, and neutral parties in each state...
September 2017: Journal of Studies on Alcohol and Drugs
https://www.readbyqxmd.com/read/28929883/managing-environmental-sustainability-in-a-healthcare-setting
#13
Karen Langstaff, Victoria Brzozowski
How does a hospital sustain its journey towards environmental sustainability? To date, most hospitals have embarked on some strategies for improving environmental performance, whether it's reducing energy or landfill waste. Environmental sustainability strategies, however, can often lose momentum or stagnate if not championed by someone whose full-time role is to assess, monitor, and bring new strategies to the table. In the face of ongoing budget deficits, it is increasingly difficult to get adequate support and buy-in for this type of role unless the leadership of the organization is committed to an environmental sustainability program...
March 2017: Healthcare Management Forum
https://www.readbyqxmd.com/read/28929814/what-s-new-in-the-diagnosis-of-pancreatic-cancer-a-patent-review-2011-present
#14
Houria Boulaiz, María C Ramos, Carmen Griñán-Lisón, Maria E García-Rubiño, Francisca Vicente, Juan Antonio Marchal
Pancreatic cancer (PC) is the fourth leading cause of cancer-related death in the US with a 5-year survival rate of about 5%. Most patients have advanced metastatic disease mainly due to the lack of an effective early detection, and an extremely poor prognosis. Advancing in the fight against PC requires developing novel observable biomarkers at preclinical stages for early detection. Areas covered: This manuscript is an overview of different PC diagnostic modalities and the latest innovations made to enhance early PC detection through the patents published from 2011 to 2017...
September 20, 2017: Expert Opinion on Therapeutic Patents
https://www.readbyqxmd.com/read/28929227/genetic-predisposition-in-children-with-cancer-affected-families-acceptance-of-trio-wes
#15
Triantafyllia Brozou, Julia Taeubner, Eunike Velleuer, Martin Dugas, Dagmar Wieczorek, Arndt Borkhardt, Michaela Kuhlen
A considerable percentage of childhood cancers are due to cancer predisposition syndromes (CPS). The ratio of CPSs caused by inherited versus de novo germline mutations and the risk of recurrence in other children are unknown. We initiated a prospective study performing whole-exome sequencing (WES) of parent-child trios in children newly diagnosed with cancer. We initially aimed to determine the interest in and acceptance of trio WES among affected families and to systematically collect demographic, medical, and family history data to analyze whether these point to an underlying CPS...
September 19, 2017: European Journal of Pediatrics
https://www.readbyqxmd.com/read/28928718/analysing-microbial-community-composition-through-amplicon-sequencing-from-sampling-to-hypothesis-testing
#16
REVIEW
Luisa W Hugerth, Anders F Andersson
Microbial ecology as a scientific field is fundamentally driven by technological advance. The past decade's revolution in DNA sequencing cost and throughput has made it possible for most research groups to map microbial community composition in environments of interest. However, the computational and statistical methodology required to analyse this kind of data is often not part of the biologist training. In this review, we give a historical perspective on the use of sequencing data in microbial ecology and restate the current need for this method; but also highlight the major caveats with standard practices for handling these data, from sample collection and library preparation to statistical analysis...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28928673/revisiting-theories-of-humidity-transduction-a-focus-on-electrophysiological-data
#17
Harald Tichy, Maria Hellwig, Wolfgang Kallina
Understanding the mechanism of humidity transduction calls for experimental data and a theory to interpret the data and design new experiments. A comprehensive theory of humidity transduction must start with agreement on what humidity parameters are measured by hygroreceptors and processed by the brain. Hygroreceptors have been found in cuticular sensilla of a broad range of insect species. Their structural features are far from uniform. Nevertheless, these sensilla always contain an antagonistic pair of a moist cell and a dry cell combined with a thermoreceptive cold cell...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28928641/comparison-of-navigation-related-brain-regions-in-migratory-versus-non-migratory-noctuid-moths
#18
Liv de Vries, Keram Pfeiffer, Björn Trebels, Andrea K Adden, Ken Green, Eric Warrant, Stanley Heinze
Brain structure and function are tightly correlated across all animals. While these relations are ultimately manifestations of differently wired neurons, many changes in neural circuit architecture lead to larger-scale alterations visible already at the level of brain regions. Locating such differences has served as a beacon for identifying brain areas that are strongly associated with the ecological needs of a species-thus guiding the way towards more detailed investigations of how brains underlie species-specific behaviors...
2017: Frontiers in Behavioral Neuroscience
https://www.readbyqxmd.com/read/28928377/viral-outbreaks-involve-destabilized-evolutionary-networks-evidence-from-ebola-influenza-and-zika
#19
Stéphane Aris-Brosou, Neke Ibeh, Jessica Noël
Recent history has provided us with one pandemic (Influenza A/H1N1) and two severe viral outbreaks (Ebola and Zika). In all three cases, post-hoc analyses have given us deep insights into what triggered these outbreaks, their timing, evolutionary dynamics, and phylogeography, but the genomic characteristics of outbreak viruses are still unclear. To address this outstanding question, we searched for a common denominator between these recent outbreaks, positing that the genome of outbreak viruses is in an unstable evolutionary state, while that of non-outbreak viruses is stabilized by a network of correlated substitutions...
September 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28928073/timing-of-food-intake-sounding-the-alarm-about-metabolic-impairments-a-systematic-review
#20
REVIEW
Beccuti Guglielmo, Monagheddu Chiara, Evangelista Andrea, Ciccone Giovannino, Broglio Fabio, Soldati Laura, Bo Simona
Growing evidence points to an association between timing of food intake and obesity in humans, raising the question if when to eat matters as much as what and how much to eat. Based on the new definition of obesity as a chronobiological disease, an unusual or late meal timing represent a circadian chronodisruption, leading to metabolic impairments. Preliminary data from cross-sectional and experimental studies suggest that changes in meal timing can influence obesity and success of weight loss therapy, independently from total energy intake, dietary composition and estimated energy expenditure...
September 16, 2017: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
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