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genetically modified foods

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https://www.readbyqxmd.com/read/29777237/dna-methylation-variant-b-vitamins-intake-and-longitudinal-change-in-body-mass-index
#1
Xiang Li, Tiange Wang, Min Zhao, Tao Huang, Dianjianyi Sun, Liyuan Han, Hoirun Nisa, Xiaoyun Shang, Yoriko Heianza, Lu Qi
BACKGROUND: Growing evidence has implicated DNA methylation (DNAm) in the regulation of body adiposity; a recent epigenome-wide association study (EWAS) identified a genetic variant determining DNAm at the SREBF1 gene that affected body mass index (BMI). OBJECTIVE: In the present study, we tested interactions between DNAm variant rs752579 and methylation metabolism-related B-vitamins (folate, vitamin B2 , vitamin B6 , and vitamin B12 ) on longitudinal change in BMI in the Women's Health Initiative Memory Study (WHIMS)...
May 17, 2018: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/29773907/an-approach-to-monitoring-home-cage-behavior-in-mice-that-facilitates-data-sharing
#2
Edoardo Balzani, Matteo Falappa, Fuat Balcà, Valter Tucci
Genetically modified mice are used as models for a variety of human behavioral conditions. However, behavioral phenotyping can be a major bottleneck in mouse genetics because many of the classic protocols are too long and/or are vulnerable to unaccountable sources of variance, leading to inconsistent results between centers. We developed a home-cage approach using a Chora feeder that is controlled by-and sends data to-software. In this approach, mice are tested in the standard cages in which they are held for husbandry, which removes confounding variables such as the stress induced by out-of-cage testing...
June 2018: Nature Protocols
https://www.readbyqxmd.com/read/29746487/loss-of-malat1-does-not-modify-age-or-diet-induced-adipose-tissue-accretion-and-insulin-resistance-in-mice
#3
Sophie Carter, Stéphanie Miard, Louise Boivin, Sandrine Sallé-Lefort, Frédéric Picard
Several studies have suggested that signals emerging from white adipose tissue can contribute to the control of longevity. In turn, aging is associated with perturbed regulation and partitioning of fat depots and insulin resistance. However, the exact mechanisms involved in these relationships remain undetermined. Using RAP-PCR on adipose tissue of young and old male mice coupled with qPCR validation, we have uncovered the long non-coding RNA Malat1 as a gene robustly downregulated in visceral white adipose tissue (vWAT) during normal aging in male mice and men...
2018: PloS One
https://www.readbyqxmd.com/read/29721439/recent-approaches-in-food-bio-preservation-a-review
#4
REVIEW
Veer Pal Singh
Bio-preservation is a technique of extending the shelf life of food by using natural or controlled microbiota or antimicrobials. The fermentation products as well as beneficial bacteria are generally selected in this process to control spoilage and render pathogen inactive. The special interest organism or central organism used for this purpose is lactic acid bacteria (LAB) and their metabolites. They are capable to exhibit antimicrobial properties and helpful in imparting unique flavour and texture to the food products...
2018: Open Veterinary Journal
https://www.readbyqxmd.com/read/29720947/a-fly-s-eye-view-of-natural-and-drug-reward
#5
REVIEW
Eve G Lowenstein, Norma A Velazquez-Ulloa
Animals encounter multiple stimuli each day. Some of these stimuli are innately appetitive or aversive, while others are assigned valence based on experience. Drugs like ethanol can elicit aversion in the short term and attraction in the long term. The reward system encodes the predictive value for different stimuli, mediating anticipation for attractive or punishing stimuli and driving animal behavior to approach or avoid conditioned stimuli. The neurochemistry and neurocircuitry of the reward system is partly evolutionarily conserved...
2018: Frontiers in Physiology
https://www.readbyqxmd.com/read/29715492/subchronic-toxicity-study-in-rats-evaluating-genetically-modified-das-81419-2-soybean
#6
Zhi-Yong Qian, Shu-Jing Zhang, Li Zhang, Jing Zhang, Ying-Hua Liu, Qing-Hong Zhou, Shu-Qing Jiang, Shu-Fei Li
A 90-day feeding study in rats was conducted to evaluate the subchronic oral toxicity of genetically modified (GM) DAS-81419-2 soybean. Wistar rats were fed with diets containing toasted soybean meal produced from DAS-81419-2 soybean grain that expresses the Cry1F, Cry1Ac, and Pat proteins or containing conventional soybean at doses of 30.0%, 15.0%, 7.5%, or 0% (control group) for 90 consecutive days. The general behavior, body weight and food consumption were observed. At the middle and end of the experiment, blood, serum, and urine samples were collected for biochemical assays...
April 28, 2018: Regulatory Toxicology and Pharmacology: RTP
https://www.readbyqxmd.com/read/29709528/identifying-behavioral-phenotypes-for-childhood-obesity
#7
REVIEW
Tanja V E Kral, Reneé H Moore, Jesse Chittams, Elizabeth Jones, Lauren O'Malley, Jennifer O Fisher
Existing programs which aim to prevent and treat childhood obesity often do not take into account individual variation and the underlying mechanisms that impact child eating behavior. Individual differences in children's appetitive traits have been shown to appear as early as during infancy and become more pronounced as children grow older and become more exposed to the obesogenic food environment. Differences in genetic predispositions interacting with factors in children's early environment account in part for individual differences in appetitive traits...
April 27, 2018: Appetite
https://www.readbyqxmd.com/read/29705615/preface-to-the-special-issue-of-food-and-chemical-toxicology-on-the-outcomes-of-the-marlon-project-on-veterinary-epidemiology-of-potential-health-impacts-of-genetically-modified-feeds-in-livestock
#8
EDITORIAL
Peadar Lawlor, Michelle M Epstein, Gijs A Kleter
No abstract text is available yet for this article.
April 26, 2018: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/29690627/what-is-natural-consumer-responses-to-selected-ingredients
#9
Edgar Chambers, Edgar Chambers, Mauricio Castro
Interest in “natural” food has grown enormously over the last decade. Because the United States government has not set a legal definition for the term “natural”, customers have formed their own sensory perceptions and opinions on what constitutes natural. In this study, we examined 20 ingredients to determine what consumers consider to be natural. Using a national database, 630 consumers were sampled (50% male and 50% female) online, and the results were analyzed using percentages and chi-square tests...
April 23, 2018: Foods (Basel, Switzerland)
https://www.readbyqxmd.com/read/29685817/unintended-effects-in-genetically-modified-food-feed-safety-a-way-forward
#10
Antonio Fernandez, Claudia Paoletti
Identifying and assessing unintended effects in genetically modified food and feed are considered paramount by the Food and Agricultural Organization (FAO), World Health Organization (WHO), and Codex Alimentarius, despite heated debate. This paper addresses outstanding needs: building consensus on the history-of-safe-use concept, harmonizing criteria to select appropriate conventional counterparts, and improving endpoint selection to identify unintended effects.
April 20, 2018: Trends in Biotechnology
https://www.readbyqxmd.com/read/29681170/perceptions-of-family-among-low-income-patients-with-diabetes-in-a-text-based-mobile-health-intervention
#11
Elizabeth R E Burner, Michael D Menchine, Katrina Kubicek, Marisela Robles, Marjorie Kagawa Singer, Sanjay Arora
BACKGROUND: Diabetes disproportionately affects the US Latino population, due to socioeconomic pressures, genetics, reduced access to care and cultural practices. While efforts to improve self-care through interventions incorporating family are highly rated by Latinos, family can be both supportive and obstructive. To develop effective interventions, this role needs clarification. METHODS: We conducted group interviews in Spanish and English with 24 participants with diabetes from a mobile health diabetes self-care intervention...
April 1, 2018: Journal of Diabetes Science and Technology
https://www.readbyqxmd.com/read/29675854/social-representations-of-genetically-modified-foods-and-public-willingness-to-consume-such-foods-in-taiwan
#12
Mei-Fang Chen
This study highlighted the relevance of how social representations of genetically modified (GM) foods influence the Taiwanese public's willingness to consume GM foods. Moderated regression analysis results revealed that the social representation dimensions of adherence to technology and food as a necessity positively influenced the public's willingness to consume GM foods; however, the dimension of resistance to and suspicion of novelties had a negative influence. Food technology neophobia played a role in predicting people's willingness to consume GM foods and exerted moderating effects to enhance the negative relationship between the respondents' resistance to and suspicion of novelties and their willingness to consume GM foods...
April 20, 2018: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/29666547/use-of-urea-polyacrylamide-electrophoresis-for-discrimination-of-a1-and-a2-beta-casein-variants-in-raw-cow-s-milk
#13
Miguel Angel Duarte-Vázquez, Carlos Raúl García-Ugalde, Blanca Erika Álvarez, Laura Mariana Villegas, Blanca Estela García-Almendárez, Jorge Luis Rosado, Carlos Regalado
Beta-casein (BC) in cow's milk occurs in several genetic variants, where BC A1 (BCA1) and BC A2 (BCA2) are the most frequent. This work deals with a method based on modified polyacrylamide gel electrophoresis using urea PAGE to discriminate BCA1 and BCA2 variants from Holstein Friesian (HF) and genetically selected Jersey A2/A2 (JA2) cow's milk. Two well defined bands were obtained from BC fraction of HF milk, while that of JA2 showed a single band. Proteins from these bands were sequenced by HPLC-quadrupole linear ion trap/mass spectrometry, resulting in BCA1 and BCA2 separation from the BC fraction of HF milk, whereas BCA2 was the only constituent of JA2 fraction...
May 2018: Journal of Food Science and Technology
https://www.readbyqxmd.com/read/29662477/new-genes-involved-in-mild-stress-response-identified-by-transposon-mutagenesis-in-lactobacillus-paracasei
#14
Aurore Palud, Hélène Scornec, Jean-François Cavin, Hélène Licandro
Lactic acid bacteria (LAB) are associated with various plant, animal, and human niches and are also present in many fermented foods and beverages. Thus, they are subjected to several stress conditions and have developed advanced response mechanisms to resist, adapt, and grow. This work aimed to identify the genes involved in some stress adaptation mechanisms in LAB. For this purpose, global reverse genetics was applied by screening a library of 1287 Lactobacillus paracasei transposon mutants for mild monofactorial stresses...
2018: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29661588/impact-of-metabolic-diseases-drugs-and-dietary-factors-on-prostate-cancer-risk-recurrence-and-survival-a-systematic-review-by-the-european-association-of-urology-section-of-oncological-urology
#15
REVIEW
Riccardo Campi, Sabine D Brookman-May, Jose Daniel Subiela Henríquez, Bülent Akdoğan, Maurizio Brausi, Tobias Klatte, Johan F Langenhuijsen, Estefania Linares-Espinos, Martin Marszalek, Morgan Roupret, Christian G Stief, Alessandro Volpe, Andrea Minervini, Oscar Rodriguez-Faba
CONTEXT: To date, established risk factors for prostate cancer (PCa) are limited to age, race, family history, and certain genetic polymorphisms. Despite great research efforts, available evidence on potentially modifiable risk factors is conflicting. Moreover, most studies on PCa risk factors did not consider the impact of prostate-specific antigen (PSA) testing on PCa diagnosis. OBJECTIVE: To provide a detailed overview of the latest evidence on the role of metabolic diseases, drugs, and dietary factors for risk of PCa incidence, recurrence, and survival in men exposed to PSA testing...
April 13, 2018: European Urology Focus
https://www.readbyqxmd.com/read/29653113/oral-sensations-and-secretions
#16
Cordelia A Running
Sensations experienced in the mouth influence food choices, both immediately and in the long term. Such sensations are themselves influenced by experience with flavors, the chemical environment of the mouth, genetics of receptors for flavors, and individual behavior in the chewing of food. Gustation, the sense of taste, yields information about nutrients, influences palatability, and feeds into the human body's preparation to receive those nutrients. Olfaction, the sense of smell, contributes enormously to defining and identifying food flavors (and is experienced even after placing food inside the mouth)...
April 10, 2018: Physiology & Behavior
https://www.readbyqxmd.com/read/29649483/redefining-reproductive-dormancy-in-drosophila-as-a-general-stress-response-to-cold-temperatures
#17
Manolis Lirakis, Marlies Dolezal, Christian Schlötterer
Organisms regularly encounter unfavorable conditions and the genetic adaptations facilitating survival have been of long-standing interest to evolutionary biologists. Winter is one particularly stressful condition for insects, during which they encounter low temperatures and scarcity of food. Despite dormancy being a well-studied adaptation to facilitate overwintering, there is still considerable controversy about the distribution of dormancy among natural populations and between species in Drosophila. The current definition of dormancy as developmental arrest of oogenesis at the previtellogenic stage (stage 7) distinguishes dormancy from general stress related block of oogenesis at early vitellogenic stages (stages 8 - 9)...
April 9, 2018: Journal of Insect Physiology
https://www.readbyqxmd.com/read/29619642/genome-sequence-and-comparative-analysis-of-bacillus-cereus-bc04-reveals-genetic-diversity-and-alterations-for-antimicrobial-resistance
#18
Vijaya Bharathi Srinivasan, Mahavinod Angrasan, Neha Chandel, Govindan Rajamohan
In this study, we delineated the genome sequence of a Bacillus cereus strain BC04 isolated from a stool sample in India. The draft genome is 5.1 Mb in size and consists of total 109 scaffolds, GC content is 35.2% with 5182 coding genes. The comparative analysis with other completely sequenced genomes highlights the unique presence of genomic islands, hemolysin, capsular synthetic protein, modifying enzymes accC7 and catA15, regulators of antibiotic resistance MarR and LysR with annotated functions related to virulence, stress response, and antimicrobial resistance...
April 4, 2018: Functional & Integrative Genomics
https://www.readbyqxmd.com/read/29619418/the-role-of-intestinal-c-type-regenerating-islet-derived-3-lectins-for-nonalcoholic-steatohepatitis
#19
Sena Bluemel, Lirui Wang, Cameron Martino, Suhan Lee, Yanhan Wang, Brandon Williams, Angela Horvath, Vanessa Stadlbauer, Karsten Zengler, Bernd Schnabl
C-type regenerating islet derived-3 (Reg3) lectins defend against pathogens and keep commensal bacteria at a distance. Deficiency of Reg3g and Reg3b facilitates alcohol-induced bacterial translocation and alcoholic liver disease. Intestinal Reg3g is down-regulated in animal models of diet-induced obesity, but the functional consequences for nonalcoholic steatohepatitis (NASH) are unknown. The aim of this study was to investigate the role of Reg3 lectins in NASH. NASH was induced by a Western-style fast-food diet in mice deficient for Reg3g or Reg3b and in transgenic mice overexpressing Reg3g in intestinal epithelial cells ( Reg3g Tg)...
April 2018: Hepatology Communications
https://www.readbyqxmd.com/read/29616889/farmers-prevailing-perception-profiles-regarding-gm-crops-a-classification-proposal
#20
Carla Almeida, Luisa Massarani
Genetically modified organisms have been at the centre of a major public controversy, involving different interests and actors. While much attention has been devoted to consumer views on genetically modified food, there have been few attempts to understand the perceptions of genetically modified technology among farmers. By investigating perceptions of genetically modified organisms among Brazilian farmers, we intend to contribute towards filling this gap and thereby add the views of this stakeholder group to the genetically modified debate...
April 1, 2018: Public Understanding of Science
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