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https://www.readbyqxmd.com/read/28636268/high-throughput-sequencing-reveals-drosophila-suzukii-responses-to-insecticides
#1
Ruchir Mishra, Joanna C Chiu, Gang Hua, Nilesh R Tawari, Michael J Adang, Ashfaq A Sial
Global climate change and acquired resistance to insecticides are threats to world food security. Drosophila suzukii, a devastating invasive pest in many parts of the world, causes substantial economic losses to fruit production industries, forcing farmers to apply broad-spectrum insecticides frequently. This could lead to the development of insecticide resistance. We determined the Lethal Concentration50 (median lethal concentration) values of zeta-cypermethrin, spinosad, and malathion insecticides against D...
June 21, 2017: Insect Science
https://www.readbyqxmd.com/read/28635632/glucose-and-lipid-dysmetabolism-in-a-rat-model-of-prediabetes-induced-by-a-high-sucrose-diet
#2
Ana Burgeiro, Manuela G Cerqueira, Bárbara M Varela-Rodríguez, Sara Nunes, Paula Neto, Frederico C Pereira, Flávio Reis, Eugénia Carvalho
Glucotoxicity and lipotoxicity are key features of type 2 diabetes mellitus, but their molecular nature during the early stages of the disease remains to be elucidated. We aimed to characterize glucose and lipid metabolism in insulin-target organs (liver, skeletal muscle, and white adipose tissue) in a rat model treated with a high-sucrose (HSu) diet. Two groups of 16-week-old male Wistar rats underwent a 9-week protocol: HSu diet (n = 10)-received 35% of sucrose in drinking water; Control (n = 12)-received vehicle (water)...
June 21, 2017: Nutrients
https://www.readbyqxmd.com/read/28634592/euglycemic-diabetic-ketoacidosis-with-prolonged-glucosuria-associated-with-the-sodium-glucose-cotransporter-2-canagliflozin
#3
Daniel A Kelmenson, Kelsey Burr, Yusra Azhar, Paul Reynolds, Chelsea A Baker, Neda Rasouli
Sodium-glucose cotransporter-2 (SGLT2) inhibitors improve glycemic control by a reversible inhibition of the sodium-glucose cotransporters in the renal proximal tubules resulting in increased urinary glucose. This unique mechanism, independent of insulin secretion and beta cell function, has made this class of medication desirable in patients with type 2 diabetes. However in May 2015, the US Food and Drug Administration issued a safety warning pertaining to the development of diabetic ketoacidosis (DKA) with the use of SGLT2 inhibitors...
April 2017: Journal of Investigative Medicine High Impact Case Reports
https://www.readbyqxmd.com/read/28634363/long-term-health-outcomes-in-patients-with-prader-willi-syndrome-a-nationwide-cohort-study-in-denmark
#4
E Hedgeman, S P Ulrichsen, S Carter, N C Kreher, K P Malobisky, M M Braun, J Fryzek, M S Olsen
BACKGROUND: Prader-Willi syndrome (PWS) is a rare congenital disease that affects growth, sexual development, cognitive function and behavior. Individuals exhibit food preoccupation and hyperphagia, which may lead to obesity with premature morbidity and mortality. The aim of this work was to evaluate the risk of venous thromboembolisms (VTE), myocardial infarction, pulmonary hypertension, sleep apnea, depression, anxiety and all-cause mortality among persons with PWS as compared to an age- and sex-matched general population cohort...
June 21, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28634330/increase-in-predation-risk-and-trophic-level-induced-by-nocturnal-visits-of-piscivorous-fishes-in-a-temperate-seagrass-bed
#5
Jun Shoji, Hiromichi Mitamura, Kotaro Ichikawa, Hikari Kinoshita, Nobuaki Arai
The majority of surveys on food webs of aquatic ecosystems have been conducted during the day owning to difficulties in sampling animals at night. In this study, to examine diurnal changes in predator-prey interactions in a temperate seagrass Zostera marina bed, a quantitative day/night survey of fish, the dominant animal community, coupled with acoustic telemetry of their predators, was conducted. The number of species, abundance, and biomass of piscivorous predators and mean trophic level during the night were significantly higher than those in the day in all seasons...
June 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28633756/immunotherapy-the-wave-of-the-future-in-bladder-cancer
#6
Daniel P Petrylak
Urothelial cell carcinoma (UC) is one of the most common cancers and one of the most deadly. Metastatic UC is particularly hard to treat, because it is typically diagnosed when patients are elderly and have medical comorbidities. Many patients with metastatic UC are unable to receive cisplatin-based chemotherapy, due to older age at diagnosis and comorbidities, and even when platinum chemotherapy can be administered, it has limited success in prolonging survival. Recently, improved understanding of molecular targets and immunologic characteristics of urothelial tumor cells has resulted in new therapeutic approaches that may help optimize first- and second-line therapy...
June 2017: Clinical Genitourinary Cancer
https://www.readbyqxmd.com/read/28633392/can-estimation-of-sodium-intake-be-improved-by-borrowing-information-from-other-variables
#7
Lawrence J Appel, David R Jacobs
Estimation of dietary sodium intake is problematic. The most accurate measure is average sodium excretion from multiple 24 hour urine collections, but such an approach is impractical. Using data from the Women's Health Initiative, Prentice and colleagues assessed the relationship of calibrated estimates of sodium and potassium excretion with cardiovascular outcomes. The calibrated estimates are a function of self-reported sodium/potassium ratio from a food frequency questionnaire, age, body mass index, race, supplement use, smoking status, education, income, and aspirin use...
June 14, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/28633099/simultaneous-and-specific-enrichment-of-several-amphenicol-antibiotics-residues-in-food-based-on-novel-aptamer-functionalized-magnetic-adsorbents-using-hplc-dad
#8
Shengfeng Huang, Ning Gan, Haibo Liu, You Zhou, Yinji Chen, Yuting Cao
In this work, a novel aptamer functionalized magnetic adsorbent was developed and combined with magnetic dispersive solid phase extraction (MDSPE) for selective enrichment of several amphenicol antibiotics residues (chloramphenicol(CAP), thiamphenicol(TAP) and florphenicol(FF)) in foodstuff then determined by High Performance Liquid Chromatography (HPLC)-Diode array detector(DAD). Firstly, a magnetic silica-coated Fe3O4 microsphere(Fe3O4@SiO2) was synthetized by sol-gel method, then it was functionalized by amino groups through 3-Aminopropyltriethoxysilane (APTES) reagent to form Fe3O4@SiO2-NH2; Thirdly, the amino group on Fe3O4@SiO2-NH2 was transferred to carboxylic group via the succinic anhydride to form Fe3O4@SiO2-COOH...
June 12, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/28632943/habitat-coupling-writ-large-pelagic-derived-materials-fuel-benthivorous-macroalgal-reef-fishes-in-an-upwelling-zone
#9
Felipe Docmac, Miguel Araya, Ivan A Hinojosa, Cristina Dorador, Chris Harrod
Coastal marine upwelling famously supports elevated levels of pelagic biological production, but can also subsidise production in inshore habitats via pelagic-benthic coupling. Consumers inhabiting macroalgae-dominated rocky reef habitats are often considered to be members of a food web fuelled by energy derived from benthic primary production; conversely, they may also be subsidised by materials transported from pelagic habitats. Here, we used stable isotopes (δ(13) C, δ(15) N) to examine the relative contribution of pelagic and benthic materials to an ecologically and economically important benthivorous fish assemblage inhabiting subtidal macroalgae-dominated reefs along ~1000 km of the northern Chilean coast where coastal upwelling is active...
June 20, 2017: Ecology
https://www.readbyqxmd.com/read/28632181/spirulina-protects-against-hepatic-inflammation-in-aging-an-effect-related-to-the-modulation-of-the-gut-microbiota
#10
Audrey M Neyrinck, Bernard Taminiau, Hannah Walgrave, Georges Daube, Patrice D Cani, Laure B Bindels, Nathalie M Delzenne
Aging predisposes to hepatic dysfunction and inflammation that can contribute to the development of non-alcoholic fatty liver disease. Spirulina, a cyanobacterium used as a food additive or food supplement, has been shown to impact immune function. We have tested the potential hepatoprotective effect of a Spirulina in aged mice and to determine whether these effects can be related to a modulation of the gut microbiota. Old mice have been fed a standard diet supplemented with or without 5% Spirulina for six weeks...
June 20, 2017: Nutrients
https://www.readbyqxmd.com/read/28632132/antagonistic-modulation-of-npy-agrp-and-pomc-neurons-in-the-arcuate-nucleus-by-noradrenalin
#11
Lars Paeger, Ismene Karakasilioti, Janine Altmüller, Peter Frommolt, Jens Brüning, Peter Kloppenburg
In the arcuate nucleus of the hypothalamus (ARH) satiety signaling (anorexigenic) pro-opiomelanocortin (POMC)-expressing and hunger signaling (orexigenic) agouti-related peptide (AgRP)-expressing neurons are key components of the neuronal circuits that control food intake and energy homeostasis. Here, we assessed whether the catecholamine noradrenalin directly modulates the activity of these neurons in mice. Perforated patch clamp recordings showed that noradrenalin changes the activity of these functionally antagonistic neurons in opposite ways, increasing the activity of the orexigenic NPY/AgRP neurons and decreasing the activity of the anorexigenic POMC neurons...
June 20, 2017: ELife
https://www.readbyqxmd.com/read/28631817/application-of-high-resolution-melting-analysis-for-authenticity-testing-of-valuable-dendrobium-commercial-products
#12
Xiaoman Dong, Chao Jiang, Yuan Yuan, Daiyin Peng, Yuqin Luo, Yuyang Zhao, Luqi Huang
BACKGROUND: The accurate identification of botanical origin in commercial products is important to ensure food authenticity and safety for consumers. The Dendrobium species have long been commercialized as functional food supplements and herbal medicines in Asia. Three valuable Dendrobium species, namely Dendrobium officinale, D. huoshanense and D. moniliforme, are often mutually adulterated in trade products in pursuit of higher profit. RESULTS: In this paper, a rapid and reliable semi-quantitative method for identifying the botanical origin of Dendrobium products in terminal markets was developed using HRM (High-Resolution Melting) analysis with specific primer pairs to target the trnL-F region...
June 20, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28631803/a-gompertz-model-approach-to-microbial-inactivation-kinetics-by-high-pressure-processing-hpp-model-selection-and-experimental-validation
#13
Vinicio Serment-Moreno, Claudio Fuentes, José Antonio Torres, Jorge Welti-Chanes
A recently proposed Gompertz model (GMPZ) approach describing microbial inactivation kinetics by high-pressure processing (HPP) incorporated the initial microbial load (N0 ) and lower microbial quantification limit (Nlim ), and simplified the dynamic effects of come-up time (CUT). The inactivation of Listeria innocua in milk by HPP treatments at 300, 400, 500, and 600 MPa and pressure holding times (thold ) ≤10 min was determined experimentally to validate this model approach. Models based on exponential, logistic-exponential, and inverse functions were evaluated to describe the effect of pressure on the lag time (λ) and maximum inactivation rate (μmax ), whereas the asymptote difference (A) was fixed as A = log10 (N0 /Nlim )...
June 20, 2017: Journal of Food Science
https://www.readbyqxmd.com/read/28631236/use-of-ctx-i-and-pinp-as-bone-turnover-markers-national-bone-health-alliance-recommendations-to-standardize-sample-handling-and-patient-preparation-to-reduce-pre-analytical-variability
#14
P Szulc, K Naylor, N R Hoyle, R Eastell, E T Leary
N-terminal propeptide of type I procollagen and C-terminal telopeptide of type I collagen are the reference standards for bone turnover markers for monitoring osteoporosis treatment. We provide recommendations for standardized sample handling and encompassing aspects of preanalytical variability to improve the reproductibility of their measurements, their reliability, and clinical interpretation. The International Osteoporosis Foundation and International Federation of Clinical Chemistry bone turnover marker standards working group have identified N-terminal propeptide of type I procollagen (PINP) and C-terminal telopeptide of type I collagen (CTX-I) in the blood to be the international reference standards for bone turnover markers for the prediction of fracture risk and monitoring of osteoporosis treatment...
June 19, 2017: Osteoporosis International
https://www.readbyqxmd.com/read/28630857/effectiveness-of-a-commercial-lactic-acid-bacteria-intervention-applied-to-inhibit-shiga-toxin-producing-escherichia-coli-on-refrigerated-vacuum-aged-beef
#15
Katie R Kirsch, Tamra N Tolen, Jessica C Hudson, Alejandro Castillo, Davey Griffin, T Matthew Taylor
Because of their antagonistic activity towards pathogenic and spoilage bacteria, some members of the lactic acid bacteria (LAB) have been evaluated for use as food biopreservatives. The objectives of this study were to assess the antimicrobial utility of a commercial LAB intervention against O157 and non-O157 Shiga-toxigenic E. coli (STEC) on intact beef strip loins during refrigerated vacuum aging and determine intervention efficacy as a function of mode of intervention application. Prerigor strip loins were inoculated with a cocktail (8...
2017: International journal of food science
https://www.readbyqxmd.com/read/28630621/development-of-snp-genotyping-assays-for-seed-composition-traits-in-soybean
#16
Gunvant Patil, Juhi Chaudhary, Tri D Vuong, Brian Jenkins, Dan Qiu, Suhas Kadam, Grover J Shannon, Henry T Nguyen
Seed composition is one of the most important determinants of the economic values in soybean. The quality and quantity of different seed components, such as oil, protein, and carbohydrates, are crucial ingredients in food, feed, and numerous industrial products. Soybean researchers have successfully developed and utilized a diverse set of molecular markers for seed trait improvement in soybean breeding programs. It is imperative to design and develop molecular assays that are accurate, robust, high-throughput, cost-effective, and available on a common genotyping platform...
2017: International Journal of Plant Genomics
https://www.readbyqxmd.com/read/28630250/amplification-of-mglu5-endocannabinoid-signaling-rescues-behavioral-and-synaptic-deficits-in-a-mouse-model-of-adolescent-and-adult-dietary-polyunsaturated-fatty-acids-imbalance
#17
Antonia Manduca, Anissa Bara, Thomas Larrieu, Olivier Lassalle, Corinne Joffre, Sophie Layé, Olivier J Manzoni
Energy-dense, yet nutritionally-poor food is a high-risk factor for mental health disorders. This is of particular concern during adolescence, a period often associated with increased consumption of low nutritional content food and higher prevalence of mental health disorders. Indeed, there is an urgent need to understand the mechanisms linking unhealthy diet and mental disorders. Deficiency in n-3 polyunsaturated fatty acid (PUFAs) is a hallmark of poor nutrition and mood disorders. Here, we developed a mouse model of n-3 PUFAs deficiency lasting from adolescence into adulthood...
June 19, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28629779/are-dopaminergic-genotypes-risk-factors-for-eating-behavior-and-obesity-in-adults
#18
Orcun Avsar, Aysegul Kuskucu, Seda Sancak, Ece Genc
Dopamine (DA) is the main modulator of the brain reward system and significantly regulates food intake. The idea that obesity is a neurobiological disease rather than a metabolic disorder, is the basis of the study. Changes in dopamine neurotransmission affect the brain reward system in a direct way. Furthermore, changes in the reward system influence the eating behavior in human. The enzymes monoamine oxidase A (MAOA) and catechol-O-methyltransferase (COMT) terminate the DA function by metabolizing it. In our study, the control group which included 214 individuals and 234 subjects with obesity were investigated for MAOA-u VNTR and COMT (rs4680) polymorphisms...
June 16, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28629388/the-albumin-exendin-4-recombinant-protein-e2hsa-improves-glycemic-control-and-%C3%AE-cell-function-in-spontaneous-diabetic-kkay-mice
#19
Caina Li, Shaocong Hou, Shuainan Liu, Yi Huan, Sujuan Sun, Quan Liu, Zhufang Shen
BACKGROUND: E2HSA is a genetic fusion protein that consists of two tandem exendin-4 molecules that are covalently bonded to recombinant human serum albumin via a peptide linker. Previous studies have demonstrated that E2HSA significantly decreased blood glucose levels, improved β-cell function and promoted β-cell proliferation in diabetic db/dB mice. This study aimed to evaluate the benefits of E2HSA on glucose and lipid metabolism in a spontaneous diabetes animal model, KKAy mice. METHODS: E2HSA was acutely administered at doses of 1, 3 and 9 mg/kg by subcutaneous injection in diabetic KKAy mice with exendin-4 (2 μg/kg) as a positive reference, and then the non-fasting blood glucose and food intake levels were dynamically monitored...
June 19, 2017: BMC Pharmacology & Toxicology
https://www.readbyqxmd.com/read/28629346/a-hyper-thermostable-%C3%AE-amylase-from-pyrococcus-furiosus-accumulates-in-nicotiana-tabacum-as-functional-aggregates
#20
Hong Zhu, L Bruce Reynolds, Rima Menassa
BACKGROUND: Alpha amylase hydrolyzes α-bonds of polysaccharides such as starch and produces malto-oligosaccharides. Its starch saccharification applications make it an essential enzyme in the textile, food and brewing industries. Commercially available α-amylase is mostly produced from Bacillus or Aspergillus. A hyper-thermostable and Ca (2++) independent α-amylase from Pyrococcus furiosus (PFA) expressed in E.coli forms insoluble inclusion bodies and thus is not feasible for industrial applications...
June 19, 2017: BMC Biotechnology
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