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https://www.readbyqxmd.com/read/28820880/knock-out-of-a-mitochondrial-sirtuin-protects-neurons-from-degeneration-in-caenorhabditis-elegans
#1
Rachele Sangaletti, Massimo D'Amico, Jeff Grant, David Della-Morte, Laura Bianchi
Sirtuins are NAD⁺-dependent deacetylases, lipoamidases, and ADP-ribosyltransferases that link cellular metabolism to multiple intracellular pathways that influence processes as diverse as cell survival, longevity, and cancer growth. Sirtuins influence the extent of neuronal death in stroke. However, different sirtuins appear to have opposite roles in neuronal protection. In Caenorhabditis elegans, we found that knock-out of mitochondrial sirtuin sir-2.3, homologous to mammalian SIRT4, is protective in both chemical ischemia and hyperactive channel induced necrosis...
August 18, 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28819983/an-evaluation-of-the-effectiveness-of-a-risk-based-monitoring-approach-implemented-with-clinical-trials-involving-implantable-cardiac-medical-devices
#2
Christopher A Diani, Angie Rock, Phil Moll
Background Risk-based monitoring is a concept endorsed by the Food and Drug Administration to improve clinical trial data quality by focusing monitoring efforts on critical data elements and higher risk investigator sites. BIOTRONIK approached this by implementing a comprehensive strategy that assesses risk and data quality through a combination of operational controls and data surveillance. This publication demonstrates the effectiveness of a data-driven risk assessment methodology when used in conjunction with a tailored monitoring plan...
August 1, 2017: Clinical Trials: Journal of the Society for Clinical Trials
https://www.readbyqxmd.com/read/28819154/rpos-independent-evolution-reveals-the-importance-of-attenuated-camp-crp-regulation-in-high-hydrostatic-pressure-resistance-acquisition-in-e-coli
#3
Elisa Gayán, Alexander Cambré, Chris W Michiels, Abram Aertsen
High hydrostatic pressure (HHP) processing is an attractive non-thermal alternative to food pasteurization. Nevertheless, the large inter- and intra-species variations in HHP resistance among foodborne pathogens and the ease by which they can acquire extreme resistance are an issue of increasing concern. Since RpoS activity has been considered as a central determinant in the HHP resistance of E. coli and its pathovars, this study probed for the potential of an E. coli MG1655 ΔrpoS mutant to acquire HHP resistance by directed evolution...
August 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28818842/what-s-new-in-paediatric-hypertension
#4
REVIEW
Rowena Lalji, Kjell Tullus
Paediatric hypertension predisposes to hypertension and cardiovascular disease in adult life. Despite clear guidelines, there remains a lack of screening. Diagnosis remains challenging given the high rate of false-positive high blood pressure (BP) readings at a single visit; thus, multiple visits are required to confirm the diagnosis. Depending on the normative data sets used, hypertension in overweight and obese children can be underestimated by up to 20%. Specific BP targets are required for subgroups such as adolescents, children with chronic kidney disease (CKD) and type 1 diabetes...
August 17, 2017: Archives of Disease in Childhood
https://www.readbyqxmd.com/read/28818660/environmental-effects-are-stronger-than-human-effects-on-mammalian-predator-prey-relationships-in-arid-australian-ecosystems
#5
Benjamin L Allen, Alana Fawcett, Alison Anker, Richard M Engeman, Allan Lisle, Luke K-P Leung
Climate (drought, rainfall), geology (habitat availability), land use change (provision of artificial waterpoints, introduction of livestock), invasive species (competition, predation), and direct human intervention (lethal control of top-predators) have each been identified as processes driving the sustainability of threatened fauna populations. We used a systematic combination of empirical observational studies and experimental manipulations to comprehensively evaluate the effects of these process on a model endangered rodent, dusky hopping-mice (Notomys fuscus)...
August 14, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28818086/mediterranean-diet-folic-acid-and-neural-tube-defects
#6
REVIEW
Maximilian Fischer, Mauro Stronati, Marcello Lanari
The Mediterranean diet has been for a very long time the basis of food habits all over the countries of the Mediterranean basin, originally founded on rural models and low consumption of meat products and high-fat/high-processed foods. However, in the modern era, the traditional Mediterranean diet pattern is now progressively eroding due to the widespread dissemination of the Western-type economy, life-style, technology-driven culture, as well as the globalisation of food production, availability and consumption, with consequent homogenisation of food culture and behaviours...
August 17, 2017: Italian Journal of Pediatrics
https://www.readbyqxmd.com/read/28817798/toward-a-wiring-diagram-understanding-of-appetite-control
#7
REVIEW
Mark L Andermann, Bradford B Lowell
Prior mouse genetic research has set the stage for a deep understanding of appetite regulation. This goal is now being realized through the use of recent technological advances, such as the ability to map connectivity between neurons, manipulate neural activity in real time, and measure neural activity during behavior. Indeed, major progress has been made with regard to meal-related gut control of appetite, arcuate nucleus-based hypothalamic circuits linking energy state to the motivational drive, hunger, and, finally, limbic and cognitive processes that bring about hunger-mediated increases in reward value and perception of food...
August 16, 2017: Neuron
https://www.readbyqxmd.com/read/28817554/occupational-distribution-of-campylobacteriosis-and-salmonellosis-cases-maryland-ohio-and-virginia-2014
#8
Chia-Ping Su, Marie A de Perio, Kathleen Fagan, Meghan L Smith, Ellen Salehi, Seth Levine, Karen Gruszynski, Sara E Luckhaupt
Campylobacter and Salmonella are leading causes of bacterial gastroenteritis in the United States and are estimated to cause >1 million episodes of domestically acquired illness annually (1). Campylobacter and Salmonella are primarily transmitted through contaminated food, but animal-to-human and human-to-human transmission can also occur (2,3). Although occupationally acquired infections have been reported, occupational risk factors have rarely been studied. In 2015, the Occupational Safety and Health Administration (OSHA) identified 63 suspected or confirmed cases of Campylobacter infection over 3...
August 18, 2017: MMWR. Morbidity and Mortality Weekly Report
https://www.readbyqxmd.com/read/28816642/proteomic-analysis-of-the-human-olfactory-bulb
#9
Manjunath Dammalli, Gourav Dey, Anil K Madugundu, Manish Kumar, Benvil Rodrigues, Harsha Gowda, Bychapur Gowrishankar Siddaiah, Anita Mahadevan, Susarla Krishna Shankar, Thottethodi Subrahmanya Keshava Prasad
The importance of olfaction to human health and disease is often underappreciated. Olfactory dysfunction has been reported in association with a host of common complex diseases, including neurological diseases such as Alzheimer's disease and Parkinson's disease. For health, olfaction or the sense of smell is also important for most mammals, for optimal engagement with their environment. Indeed, animals have developed sophisticated olfactory systems to detect and interpret the rich information presented to them to assist in day-to-day activities such as locating food sources, differentiating food from poisons, identifying mates, promoting reproduction, avoiding predators, and averting death...
August 2017: Omics: a Journal of Integrative Biology
https://www.readbyqxmd.com/read/28816611/biosynthesis-regulation-of-natamycin-production-from-streptomyces-natalensis-hdmnte-01-enhanced-by-response-surface-methodology
#10
Jingping Ge, Changli Wang, Shoufeng Huang, Renpeng Du, Kun Liu, Gang Song, Wenxiang Ping
Natamycin has been widely applied in medical treatments and food protection widely due to its effective inhibition to the growth of yeast and mold. As polyene macrolide antibiotic, the biosynthesis pathway of natamycin is relatively clear. To regulate the biosynthesis of natamycin, additions of precursors affecting cell growth and natamycin production were investigated. The results showed that 0.003% (w/v) potassium ferrocyanide and sodium propionate: n-butanol at a ratio of 4:1 was added into the broth at 0 h and 24 h respectively and they contributed to yield natamycin, reaching 1...
August 17, 2017: Preparative Biochemistry & Biotechnology
https://www.readbyqxmd.com/read/28816555/chemical-utilization-of-albizia-lebbeck-leaves-for-developing-protein-concentrates-as-a-dietary-supplement
#11
Lutful Haque Khan, V K Varshney
In search of nonconventional sources of protein to combat widespread malnutrition, the possibility of developing a protein concentrate as an alternative dietary supplement from abundantly available yet poorly valorized leaves of Albizia lebbeck (siris) was examined. A process for recovery of leaf protein concentrate (LPC) from these leaves was optimized and applied for isolation of LPCs from lower, middle, and upper canopies of the tree. The optimized conditions (leaves to water 1:9, coagulation at pH 4.0 using 1 N citric acid at 90°C for 11 minutes) afforded LPCs containing protein 37...
August 17, 2017: Journal of Dietary Supplements
https://www.readbyqxmd.com/read/28816350/characteristics-and-functionality-of-appetite-reducing-thylakoid-powders-produced-by-three-different-drying-processes
#12
Karolina Östbring, Ingegerd Sjöholm, Henrietta Sörenson, Andrej Ekholm, Charlotte Erlanson-Albertsson, Marilyn Rayner
BACKGROUND: Thylakoids, a chloroplast membrane extracted from green leaves, is a promising functional ingredient with appetite reducing properties via their lipase-inhibiting effect. Thylakoids in powder form has been evaluated in animal and human models but no comprehensive study has been conducted on powder characteristics. The aim was to investigate the effects of different isolation methods and drying techniques (drum-drying, spray-drying, freeze-drying) on thylakoids' physicochemical and functional properties...
August 17, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28815388/guiding-patients-toward-the-appropriate-surgical-treatment-for-obesity-should-presurgery-psychological-correlates-influence-choice-between-roux-en-y-gastric-bypass-and-vertical-sleeve-gastrectomy
#13
Gretchen E Ames, Michael G Heckman, Nancy N Diehl, Dustin M Shepherd, Allison A Holgerson, Karen B Grothe, Todd A Kellogg, Steven P Bowers, Matthew M Clark
BACKGROUND: Helping patients determine which type of bariatric surgery, Roux-en-Y gastric bypass (RYGB) or vertical sleeve gastrectomy (VSG), may be the best treatment can be challenging. This study investigated psychological correlates and their influence on weight loss for patients who underwent RYGB or VSG. METHODS: Four hundred twenty-two patients (RYGB = 305; VSG = 117) completed screening questionnaires presurgery and underwent surgery between August 2012 and April 2015...
August 16, 2017: Obesity Surgery
https://www.readbyqxmd.com/read/28815367/microplastic-pollution-a-threat-to-marine-ecosystem-and-human-health-a-short-review
#14
Shivika Sharma, Subhankar Chatterjee
Human populations are using oceans as their household dustbins, and microplastic is one of the components which are not only polluting shorelines but also freshwater bodies globally. Microplastics are generally referred to particles with a size lower than 5 mm. These microplastics are tiny plastic granules and used as scrubbers in cosmetics, hand cleansers, air-blasting. These contaminants are omnipresent within almost all marine environments at present. The durability of plastics makes it highly resistant to degradation and through indiscriminate disposal they enter in the aquatic environment...
August 16, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28813467/meat-consumption-reduction-in-italian-regions-health-co-benefits-and-decreases-in-ghg-emissions
#15
Sara Farchi, Manuela De Sario, Enrica Lapucci, Marina Davoli, Paola Michelozzi
INTRODUCTION: Animal agriculture has exponentially grown in recent decades in response to the rise in global demand for meat, even in countries like Italy that traditionally eat a Mediterranean, plant-based diet. Globalization related dietary changes are contributing to the epidemic of non-communicable diseases and to the global climate crisis, and are associated with huge carbon and water footprints. The objective of the study is to assess inequalities in health impacts and in attributable greenhouse gases-GHG emissions in Italy by hypothesizing different scenarios of reduction in red and processed meat consumption towards healthier consumption patterns more compliant with the recommendations of the Mediterranean food pyramid...
2017: PloS One
https://www.readbyqxmd.com/read/28813028/detection-methodologies-for-pathogen-and-toxins-a-review
#16
REVIEW
Md Eshrat E Alahi, Subhas Chandra Mukhopadhyay
Pathogen and toxin-contaminated foods and beverages are a major source of illnesses, even death, and have a significant economic impact worldwide. Human health is always under a potential threat, including from biological warfare, due to these dangerous pathogens. The agricultural and food production chain consists of many steps such as harvesting, handling, processing, packaging, storage, distribution, preparation, and consumption. Each step is susceptible to threats of environmental contamination or failure to safeguard the processes...
August 16, 2017: Sensors
https://www.readbyqxmd.com/read/28813010/characterization-of-breakfast-cereals-available-in-the-mexican-market-sodium-and-sugar-content
#17
Claudia Nieto, Sofia Rincon-Gallardo Patiño, Lizbeth Tolentino-Mayo, Angela Carriedo, Simón Barquera
Preschool Mexican children consume 7% of their total energy intake from processed breakfast cereals. This study characterized the nutritional quality and labelling (claims and Guideline Daily Amount (GDA)) of the packaged breakfast cereals available in the Mexican market. Photographs of all breakfast cereals available in the 9 main food retail chains in the country were taken. The nutrition quality of cereals was assessed using the United Kingdom Nutrient Profiling Model (UKNPM). Claims were classified using the International Network for Food and Obesity/non-communicable Diseases Research, Monitoring and Action Support (INFORMAS) taxonomy and the GDA was defined according to the Mexican regulation, NOM-051...
August 16, 2017: Nutrients
https://www.readbyqxmd.com/read/28812616/legacy-effects-of-developmental-stages-determine-the-functional-role-of-predators
#18
Volker H W Rudolf, B G Van Allen
Predators are instrumental in structuring natural communities and ecosystem processes. The strong effects of predators are often attributed to their high trophic position in the food web. However, most predators have to grow and move up the food chain before reaching their final trophic position, and during this developmental process their traits, interactions and abundances change. Here, we show that this process of 'moving up' the food chain during development strongly determines the ecological role of a predator...
January 13, 2017: Nature ecology & evolution
https://www.readbyqxmd.com/read/28812350/green-solvent-processable-dopant-free-hole-transporting-materials-for-robust-and-efficient-perovskite-solar-cells
#19
Junwoo Lee, Mahdi Malekshahi Byranvand, Gyeongho Kang, Sung Y Son, Seulki Song, Guan-Woo Kim, Taiho Park
In addition to having proper energy levels and high hole mobility (μh) without the use of dopants, hole-transporting materials (HTMs) used in n-i-p-type perovskite solar cells (PSCs) should be processed using green solvents to enable environmentally friendly device fabrication. Although many HTMs have been assessed, owing to the limited solubility of HTMs in green solvents, no green-solvent-processable HTM has been reported to date. Here we report on a green-solvent-processable HTM, an asymmetric D-A polymer (asy-PBTBDT) that exhibits superior solubility even in the green solvent, 2-methylanisole, which is a known food additive...
August 16, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28811870/meat-inspection-of-reindeer-a-rich-source-of-data-for-monitoring-food-safety-and-animal-and-environmental-health-in-sweden
#20
Arja Helena Kautto, Ivar Vågsholm, Rauni Niskanen
Background: ​This study scrutinized carcass conditions recorded in post mortem inspections (PMI) of reindeer (Rangifer tarandus tarandus, L.) during 2015-2016 because of the importance for monitoring food safety and animal and environmental health threats. Material and methods: PMI results were retrieved from the National Food Agency. A negative binomial regression model was applied. For actual parameters, incident risk rate (IRR) with confidence intervals was calculated. Results and discussion: The number of conditions found in PMI varied widely between years and batches...
2017: Infection Ecology & Epidemiology
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