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Genetically modified food

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https://www.readbyqxmd.com/read/28819142/development-and-inter-laboratory-assessment-of-droplet-digital-pcr-assays-for-multiplex-quantification-of-15-genetically-modified-soybean-lines
#1
Alexandra Bogožalec Košir, Bjørn Spilsberg, Arne Holst-Jensen, Jana Žel, David Dobnik
Quantification of genetically modified organisms (GMOs) in food and feed products is often required for their labelling or for tolerance thresholds. Standard-curve-based simplex quantitative polymerase chain reaction (qPCR) is the prevailing technology, which is often combined with screening analysis. With the rapidly growing number of GMOs on the world market, qPCR analysis becomes laborious and expensive. Innovative cost-effective approaches are therefore urgently needed. Here, we report the development and inter-laboratory assessment of multiplex assays to quantify GMO soybean using droplet digital PCR (ddPCR)...
August 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28809975/discovery-of-synthetic-small-molecules-that-enhance-the-number-of-stomata-c-h-functionalization-chemistry-for-plant-biology
#2
Asraa Ziadi, Naoyuki Uchida, Hiroe Kato, Rina Hisamatsu, Ayato Sato, Shinya Hagihara, Kenichiro Itami, Keiko U Torii
The increasing climate changes and global warming are leading to colossal agricultural problems such as abatement of food production and quality. As stomatal development is considered to play a key role in crop plant productivity and water-use efficiency, studying stomatal development is useful for understanding the productivity of plant systems for both natural and agricultural systems. Herein, we report the first-in-class synthetic small molecules enhancing the number of stomata in Arabidopsis thaliana that have been discovered by screening of the chemical library and further optimized by the Pd-catalyzed C-H arylation reaction...
August 15, 2017: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/28799326/glp-1-conjugated-to-rhsa-variants-with-modified-fcrn-binding-properties-impact-on-molecular-structure-and-half-life
#3
Jens Thostrup Bukrinski, Pernille Sønderby, Filipa Antunes, Birgitte Andersen, Esben Gjerloeff Wedebye Schmidt, Guenther H H J Peters, Pernille Harris
Glucagon-like peptide 1 (GLP-1) is a small incretin hormone stimulated by food intake, resulting in an amplification of the insulin response. Though interesting as a drug candidate for the treatment of type 2 diabetes mellitus, its short plasma half-life of less than 3 minutes limits its clinical use. A strategy to extend the half-life of GLP-1 utilizes the long half-life of human serum albumin (HSA) by combining the two via chemical conjugation or genetic fusion. HSA has a plasma half-life of around 21 days owing to its interaction with the neonatal Fc receptor (FcRn) expressed in endothelial cells of blood vessels, which rescues circulating HSA from lysosomal degradation...
August 11, 2017: Biochemistry
https://www.readbyqxmd.com/read/28795123/corrigendum-to-data-in-support-of-the-detection-of-genetically-modified-organisms-gmos-in-food-and-feed-samples-data-brief-7-2016-pp-243-252
#4
(no author information available yet)
[This corrects the article DOI: 10.1016/j.dib.2016.02.035.].
September 2016: Data in Brief
https://www.readbyqxmd.com/read/28792800/national-antimicrobial-resistance-monitoring-system-two-decades-of-advancing-public-health-through-integrated-surveillance-of-antimicrobial-resistance
#5
Beth E Karp, Heather Tate, Jodie R Plumblee, Uday Dessai, Jean M Whichard, Eileen L Thacker, Kis Robertson Hale, Wanda Wilson, Cindy R Friedman, Patricia M Griffin, Patrick F McDermott
Drug-resistant bacterial infections pose a serious and growing public health threat globally. In this review, we describe the role of the National Antimicrobial Resistance Monitoring System (NARMS) in providing data that help address the resistance problem and show how such a program can have broad positive impacts on public health. NARMS was formed two decades ago to help assess the consequences to human health arising from the use of antimicrobial drugs in food animal production in the United States. A collaboration among the Centers for Disease Control and Prevention, the U...
August 9, 2017: Foodborne Pathogens and Disease
https://www.readbyqxmd.com/read/28770337/overexpression-of-biologically-safe-rorippa-indica-defensin-enhances-aphid-tolerance-in-brassica-juncea
#6
Poulami Sarkar, Kuladip Jana, Samir Ranjan Sikdar
Transgenic mustard plants ( Brassica juncea ) expressing non-allergenic and biologically safe RiD peptide show higher tolerance against Lipaphis erysimi. Rorippa indica defensin (RiD) has previously been reported as a novel insecticidal protein derived from a wild crucifer Rorippa indica. RiD was found to have an effective insecticidal property against mustard aphid, Lipaphis erysimi. In the present study, RiD was highly upregulated in R. indica during aphid infestation initiating a defense system mediated by jasmonic acid (JA), but not by salicylic acid (SA)/abscisic acid (ABA)...
August 2, 2017: Planta
https://www.readbyqxmd.com/read/28762296/current-nutritional-approaches-in-managing-autism-spectrum-disorder-a-review
#7
Hande Cekici, Nevin Sanlier
The link between nutrition and autism spectrum disorder (ASD), which is a complex developmental disorder manifesting itself in significant delays or deviation in interaction and communication, has provided a fresh point of view and signals that nutrition may have a role in the aetiology of ASD, as well as play an active role in treatment by alleviating symptoms. OBJECTIVE: In this review study aimed at evaluating, with scientific and concrete proof, the current medical nutrition implementations on ASD, existing medical nutrition therapies have been addressed and their effects on ASD symptoms have been discussed in light of current research...
August 1, 2017: Nutritional Neuroscience
https://www.readbyqxmd.com/read/28735739/genome-wide-bisulfite-sensitivity-profiling-of-yeast-suggests-bisulfite-inhibits-transcription
#8
Romulo Segovia, Veena Mathew, Annie S Tam, Peter C Stirling
Bisulfite, in the form of sodium bisulfite or metabisulfite, is used commercially as a food preservative. Bisulfite is used in the laboratory as a single-stranded DNA mutagen in epigenomic analyses of DNA methylation. Recently it has also been used on whole yeast cells to induce mutations in exposed single-stranded regions in vivo. To understand the effects of bisulfite on live cells we conducted a genome-wide screen for bisulfite sensitive mutants in yeast. Screening the deletion mutant array, and collections of essential gene mutants we define a genetic network of bisulfite sensitive mutants...
September 2017: Mutation Research
https://www.readbyqxmd.com/read/28731201/a-technological-and-regulatory-outlook-on-crispr-crop-editing
#9
Rea Globus, Udi Qimron
Generating plants with increased yields while maintaining low production and maintenance costs is highly important since plants are the major food source for humans and animals, as well as important producers of chemicals, pharmaceuticals, and fuels. Gene editing approaches, particularly the CRISPR-Cas system, are the preferred methods for improving crops, enabling quick, robust, and accurate gene manipulation. Nevertheless, new breeds of genetically-modified crops have initiated substantial debates concerning their biosafety, commercial use, and regulation...
July 21, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28730970/healthy-diet-and-reduction-of-chronic-disease-risks-of-night-shift-workers
#10
Giovanni M Ferri, Domenica Cavone, Graziana Intranuovo, Linda Macinagrossa
BACKGROUND: The large increase in epidemiological studies on night shift work is due to the important effects of night shift work on workers' health and psychophysical wellbeing. The short-term effects-insomnia, difficulties in managing work and private life, lower work performance, and more work and extra-work accidents-are easily studied. However, there are several long-term effects that are difficult to study because of the need for detailed exposure assessment and the long latency periods of these diseases...
July 20, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28727079/detection-of-dietary-dna-protein-and-glyphosate-in-meat-milk-and-eggs
#11
A L Van Eenennaam, A E Young
Products such as meat, milk, and eggs from animals that have consumed genetically engineered (GE) feed are not currently subject to mandatory GE labeling requirements. Some voluntary "non-genetically modified organism" labeling has been associated with such products, indicating that the animals were not fed GE crops, as there are no commercialized GE food animals. This review summarizes the available scientific literature on the detection of dietary DNA and protein in animal products and briefly discusses the implications of mandatory GE labeling for products from animals that have consumed GE feed...
July 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28720347/transgenesis-affects-endogenous-soybean-allergen-levels-less-than-traditional-breeding
#12
Ryan C Hill, Brandon J Fast, Rod A Herman
The regulatory body that oversees the safety assessment of genetically modified (GM) crops in the European Union, the European Food Safety Authority (EFSA), uniquely requires that endogenous allergen levels be quantified as part of the compositional characterization of GM versions of crops, such as soybean, that are considered to be major allergenic foods. The value of this requirement for assessing food safety has been challenged for multiple reasons including negligible risk of altering allergen levels compared with traditional non-GM breeding...
July 15, 2017: Regulatory Toxicology and Pharmacology: RTP
https://www.readbyqxmd.com/read/28702330/neonatal-glp1r-activation-limits-adult-adiposity-by-durably-altering-hypothalamic-architecture
#13
Andrea V Rozo, Daniella A Babu, PoMan A Suen, David N Groff, Randy J Seeley, Rebecca A Simmons, Patrick Seale, Rexford S Ahima, Doris A Stoffers
OBJECTIVE: Adult obesity risk is influenced by alterations to fetal and neonatal environments. Modifying neonatal gut or neurohormone signaling pathways can have negative metabolic consequences in adulthood. Here we characterize the effect of neonatal activation of glucagon like peptide-1 (GLP-1) receptor (GLP1R) signaling on adult adiposity and metabolism. METHODS: Wild type C57BL/6 mice were injected with 1 nmol/kg Exendin-4 (Ex-4), a GLP1R agonist, for 6 consecutive days after birth...
July 2017: Molecular Metabolism
https://www.readbyqxmd.com/read/28702325/the-human-digestive-tract-has-proteases-capable-of-gluten-hydrolysis
#14
Sergio Gutiérrez, Jenifer Pérez-Andrés, Honorina Martínez-Blanco, Miguel Angel Ferrero, Luis Vaquero, Santiago Vivas, Javier Casqueiro, Leandro B Rodríguez-Aparicio
OBJECTIVE: To identify, purify, and characterize the proteins responsible for glutenase activity in the feces of healthy subjects and patients with celiac disease (CD). METHODS: Sixteen subjects were included in this study; 8 were healthy with no known food intolerances, and 8 were treated CD patients on a gluten-free diet. Fecal samples were homogenized, and precipitated proteins were purified by chromatography. Glutenase activity was evaluated by bioassays, zymography, and high-performance liquid chromatography with immunogenic 33-mer, 19-mer, and 13-mer gliadin peptides...
July 2017: Molecular Metabolism
https://www.readbyqxmd.com/read/28695286/the-roles-of-mhc-class-ii-genes-and-post-translational-modification-in-celiac-disease
#15
REVIEW
Ludvig M Sollid
Our increasing understanding of the etiology of celiac disease, previously considered a simple food hypersensitivity disorder caused by an immune response to cereal gluten proteins, challenges established concepts of autoimmunity. HLA is a chief genetic determinant, and certain HLA-DQ allotypes predispose to the disease by presenting posttranslationally modified (deamidated) gluten peptides to CD4(+) T cells. The deamidation of gluten peptides is mediated by transglutaminase 2. Strikingly, celiac disease patients generate highly disease-specific autoantibodies to the transglutaminase 2 enzyme...
August 2017: Immunogenetics
https://www.readbyqxmd.com/read/28686700/rates-of-return-to-sorghum-and-millet-research-investments-a-meta-analysis
#16
Yacob A Zereyesus, Timothy J Dalton
Sorghum and millet grow in some of the most heterogeneous and austere agroecologies around the world. These crops are amongst the top five cereal sources of food and feed. Yet, few studies document the impact of sorghum and millet genetic enhancement. The Internal Rate of Return (ROR) is one of the most popular metrics used to measure the economic return on investment on agricultural research and development (R&D). This study conducted a meta-analysis of 59 sorghum and millet ROR estimates obtained from 25 sources published between 1958 and 2015...
2017: PloS One
https://www.readbyqxmd.com/read/28674844/current-perspectives-on-genetically-modified-crops-and-detection-methods
#17
REVIEW
Madhu Kamle, Pradeep Kumar, Jayanta Kumar Patra, Vivek K Bajpai
Genetically modified (GM) crops are the fastest adopted commodities in the agribiotech industry. This market penetration should provide a sustainable basis for ensuring food supply for growing global populations. The successful completion of two decades of commercial GM crop production (1996-2015) is underscored by the increasing rate of adoption of genetic engineering technology by farmers worldwide. With the advent of introduction of multiple traits stacked together in GM crops for combined herbicide tolerance, insect resistance, drought tolerance or disease resistance, the requirement of reliable and sensitive detection methods for tracing and labeling genetically modified organisms in the food/feed chain has become increasingly important...
July 2017: 3 Biotech
https://www.readbyqxmd.com/read/28667635/genetically-modified-phytase-crops-role-in-sustainable-plant-and-animal-nutrition-and-ecological-development-a-review
#18
REVIEW
Chinreddy Subramanyam Reddy, Seong-Cheol Kim, Tanushri Kaul
Globally, plant-derivatives especially cereals and legumes are the major staple food sources for animals. The seeds of these crops comprise of phytic acid, the major repository form of the phosphorus, which is not digestible by simple-stomached animals. However, it is the most important factor responsible for impeding the absorption of minerals by plants that eventually results in less use of fertilizers that ultimately cause eutrophication in water bodies. Although abundant phosphorus (P) exists in the soils, plants cannot absorb most of the P due to its conversion to unavailable forms...
July 2017: 3 Biotech
https://www.readbyqxmd.com/read/28666130/tracking-of-listeria-monocytogenes-in-meat-establishment-using-whole-genome-sequencing-as-a-food-safety-management-tool-a-proof-of-concept
#19
Ivan Nastasijevic, Dubravka Milanov, Branko Velebit, Vesna Djordjevic, Craig Swift, Anais Painset, Brankica Lakicevic
Repeated Listeria outbreaks particularly associated with Ready-To-Eat (RTE) delicatessen meat products have been reported annually at global level. The most frequent scenario that led to foodborne outbreaks was the post-thermal treatment cross-contamination of deli meat products during slicing and modified atmosphere packaging (MAP). The precondition for such cross contamination is the previous introduction of Listeria into meat processing facilities and subsequent colonization of the production environment, associated with formation of biofilms resilient to common sanitation procedures regularly applied in meat establishments...
June 20, 2017: International Journal of Food Microbiology
https://www.readbyqxmd.com/read/28664693/readiness-of-adolescents-to-use-genetically-modified-organisms-according-to-their-knowledge-and-emotional-attitude-towards-gmos
#20
Stanisław Lachowski, Anna Jurkiewicz, Piotr Choina, Magdalena Florek-Łuszczki, Agnieszka Buczaj, Małgorzata Goździewska
INTRODUCTION: Agriculture based on genetically modified organisms plays an increasingly important role in feeding the world population, which is evidenced by a considerable growth in the size of land under genetically modified crops (GM). Uncertainty and controversy around GM products are mainly due to the lack of accurate and reliable information, and lack of knowledge concerning the essence of genetic modifications, and the effect of GM food on the human organism, and consequently, a negative emotional attitude towards what is unknown...
June 7, 2017: Annals of Agricultural and Environmental Medicine: AAEM
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