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https://www.readbyqxmd.com/read/27926889/precision-medicine-diabetes-and-the-u-s-food-and-drug-administration
#1
Robert J Meyer
The U.S. Food and Drug Administration (FDA) has long sought to achieve the broader use of personalized medicine, which is better targeting of FDA-approved therapies through incorporating precise knowledge of a patient's underlying condition to therapies optimally chosen to match those needs. While some strides have been made in precision medicine-particularly in oncology and rare genetic diseases-most of the standard general medicine indications have yet to realize the benefits of precision-guided therapies...
November 2016: Diabetes Care
https://www.readbyqxmd.com/read/27926796/novel-umami-ingredients-umami-peptides-and-their-taste
#2
REVIEW
Yin Zhang, Chandrasekar Venkitasamy, Zhongli Pan, Wenlong Liu, Liming Zhao
Umami substances are very important for food seasoning and healthy eating. In addition to monosodium glutamate and some nucleotides, recent investigations have revealed that several peptides also exhibit umami taste. In recent years, 52 peptides have been reported to show umami taste, including 24 dipeptides, 16 tripeptides, 5 octapeptides, 2 pentapeptides, 2 hexapeptides, 1 tetrapeptide, 1 heptapeptide, and 1 undecapeptide. Twenty of these peptides have been examined for the present of umami taste. In this review, we have listed these umami peptides based on their category, source, taste, and threshold concentration...
December 7, 2016: Journal of Food Science
https://www.readbyqxmd.com/read/27926652/hysteroscopic-sterilization-with-essure-summary-of-the-u-s-food-and-drug-administration-actions-and-policy-implications-for-postmarketing-surveillance
#3
Jessica R Walter, Comeron W Ghobadi, Emily Hayman, Shuai Xu
In September 2015, the U.S. Food and Drug Administration (FDA) convened a meeting of the Obstetrics and Gynecology Advisory Board Committee to address the sudden increase of patient-reported adverse events surrounding Essure, a Class III device offering a less invasive method for permanent female sterilization. After a review of the premarketing and postmarketing data and existing scientific literature, the FDA concluded there was insufficient evidence to remove the device from the market. However, the FDA did release a new guidance document requiring a black box warning for the device and ordered a new postmarketing study comparing Essure's safety and efficacy with laparoscopic tubal sterilization...
December 2, 2016: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/27926573/further-delineation-between-typical-and-atypical-dopamine-uptake-inhibitors-effects-on-food-maintained-behavior-and-food-consumption
#4
Jonathan M Slezak, Rajeev I Desai, Jonathan L Katz
The present studies compared the acute effects of benztropine analogs (4-Cl-BZT, JHW 007, AHN 1-055), which are atypical dopamine uptake inhibitors, with those of the standard dopamine uptake inhibitors GBR 12909 and cocaine, on the reinforcing efficacy of food and food intake in male Sprague-Dawley rats. Repeated drug effects of JHW 007 on food intake were also determined. The number of ratios completed under a progressive-ratio schedule of food delivery was used as an index of reinforcing efficacy. Food intake was determined by measuring powdered laboratory-chow consumption during daily 40 min food-availability time periods...
December 6, 2016: Behavioural Pharmacology
https://www.readbyqxmd.com/read/27926472/sweetened-beverage-intake-and-risk-of-latent-autoimmune-diabetes-in-adults-lada-and-type-2-diabetes
#5
Josefin E Löfvenborg, Tomas Andersson, Per-Ola Carlsson, Mozhgan Dorkhan, Leif Groop, Mats Martinell, Tiinamaija Tuomi, Alicja Wolk, Sofia Carlsson
OBJECTIVE: Sweetened beverage intake is associated with increased risk of type 2 diabetes, but its association with autoimmune diabetes is unclear. We aimed to investigate sweetened beverage intake and risk of latent autoimmune diabetes in adults (LADA); autoimmune diabetes with features of type 2 diabetes. DESIGN/METHODS: Data from a Swedish population-based study was used, including incident cases of LADA (n = 357) and type 2 diabetes (n = 1136) and randomly selected controls (n = 1371)...
December 2016: European Journal of Endocrinology
https://www.readbyqxmd.com/read/27926437/involvement-of-opioid-signaling-in-food-preference-and-motivation-studies-in-laboratory-animals
#6
I Morales, L Font, P J Currie, R Pastor
Motivation is a complex neurobiological process that initiates, directs, and maintains goal-oriented behavior. Although distinct components of motivated behavior are difficult to investigate, appetitive and consummatory phases of motivation are experimentally separable. Different neurotransmitter systems, particularly the mesolimbic dopaminergic system, have been associated with food motivation. Over the last two decades, however, research focusing on the role of opioid signaling has been particularly growing in this area...
2016: Progress in Brain Research
https://www.readbyqxmd.com/read/27926429/biologically-produced-methane-as-a-renewable-energy-source
#7
D E Holmes, J A Smith
Methanogens are a unique group of strictly anaerobic archaea that are more metabolically diverse than previously thought. Traditionally, it was thought that methanogens could only generate methane by coupling the oxidation of products formed by fermentative bacteria with the reduction of CO2. However, it has recently been observed that many methanogens can also use electrons extruded from metal-respiring bacteria, biocathodes, or insoluble electron shuttles as energy sources. Methanogens are found in both human-made and natural environments and are responsible for the production of ∼71% of the global atmospheric methane...
2016: Advances in Applied Microbiology
https://www.readbyqxmd.com/read/27925850/metallic-taste-in-cancer-patients-treated-with-systemic-therapy-a-questionnaire-based-study
#8
Irene IJpma, Erik R Timmermans, Remco J Renken, Gert J Ter Horst, Anna K L Reyners
A metallic taste is reported by cancer patients as a side effect of systemic therapy. Despite the high prevalence, this taste alteration has received limited attention. The present study investigated: 1) the prevalence of metallic taste in cancer patients treated with systemic therapy; 2) possible predictors of metallic taste; and 3) characteristics of metallic taste. A heterogeneous population of 127 cancer patients, who had received systemic treatment in the past year or were still on treatment, completed a questionnaire developed for this study...
December 7, 2016: Nutrition and Cancer
https://www.readbyqxmd.com/read/27925712/quantitative-assessment-of-nutrition-in-patients-with-polycystic-ovary-syndrome-pcos
#9
Małgorzata Szczuko, Magdalena Skowronek, Marta Zapałowska-Chwyć, Andrzej Starczewski
Background: PCOS (polycystic ovary syndrome) is called a pathology of the XX century and affects at least 10-15% women of childbearing age. The therapy involves pharmacotherapy of hormonal imbalance, as well as the change of lifestyle, including the diet. Objective: Performing the quantitative assessment of components of diets of women with PCOS, comparing the results with current dietary standards for Polish people and defining dietary requirements for the patients...
2016: Roczniki Państwowego Zakładu Higieny
https://www.readbyqxmd.com/read/27925710/assessment-of-water-intake-from-food-and-beverages-by-elderly-in-poland
#10
Małgorzata E Drywień, Katarzyna Galon
Background: Fluid intake in elderly is more important than in younger individuals, because compromised homeostatic mechanisms such as loss of the thirst sensation can result in dehydration. Objective: The aim of the present study was the assessment of water intake from food and beverages by free-living elderly in Poland. Materials and Methods: The study was conducted on 138 volunteers (women and men) at the age of 60 to 90, recruited from Warsaw and Płock Universities of the Third Age and different informal groups from the same cities...
2016: Roczniki Państwowego Zakładu Higieny
https://www.readbyqxmd.com/read/27925708/determinants-of-the-use-of-dietary-supplements-among-secondary-and-high-school-students
#11
Karolina Gajda, Monika Zielińska, Anna Ciecierska, Jadwiga Hamułka
Background: All over the world, including Poland, the sale of dietary supplements is increasing. More and more often, people including children and youths, use dietary supplements on their own initiative and without any medical indications or knowledge in this field. Objectives: Analysis of the conditions of using the dietary supplements with vitamins and minerals among secondary school and high school students in Poland. Material and methods: The study included 396 students aged 13-18 years (249 girls and 147 boys)...
2016: Roczniki Państwowego Zakładu Higieny
https://www.readbyqxmd.com/read/27925705/occurrence-of-pesticide-residues-in-fruiting-vegetables-from-production-farms-in-south-eastern-region-of-poland
#12
Magdalena Słowik-Borowiec, Ewa Szpyrka, Julian Rupar, Magdalena Podbielska, Aneta Matyaszek
Background: Considering the fact that pesticides are commonly used in agriculture, continuous monitoring of these substances in food products is of great significance. Residues of these substances can be present in crops after harvest. Objective: The aim of this study was to evaluate presence of pesticide residues in fruiting vegetables from production farms in south-eastern region of Poland in 2012–2015. Material and methods: 138 samples were tested using accredited test methods...
2016: Roczniki Państwowego Zakładu Higieny
https://www.readbyqxmd.com/read/27925415/utilization-of-red-light-emitting-cdte-nanoparticles-for-the-trace-level-detection-of-harmful-herbicides-in-adulterated-food-and-agricultural-crops
#13
Nilanjan Dey, Deepa Bhagat, Durgadas Cherukaraveedu, Santanu Bhattacharya
Red-light-emitting water-soluble semiconducting quantum dots (QDs) were synthesized by using a wide variety of commercially available thiol-type capping agents. QDs with a negatively charged nanosurface showed excellent selectivity for paraquat (PQ) at pH 7.4 over other commonly encountered pesticides/herbicides, including diquat (DQ). The presence of a 4,4'-bis-pyridinium unit in PQ enabled it to initiate long-range aggregation, thereby leading to the formation of nanostructures with excellent emission-quenching behavior...
November 7, 2016: Chemistry, An Asian Journal
https://www.readbyqxmd.com/read/27925405/animal-to-human-dose-translation-of-obiltoxaximab-for-treatment-of-inhalational-anthrax-under-the-us-fda-animal-rule
#14
C F Nagy, J Mondick, N Serbina, L S Casey, S E Carpenter, J French, R Guttendorf
Obiltoxaximab, a monoclonal antibody against protective antigen (PA), is approved for treatment of inhalational anthrax under the US Food and Drug Administration's (FDA) Animal Rule. The human dose was selected and justified by comparing observed obiltoxaximab exposures in healthy and infected New Zealand White rabbits and cynomolgus macaques to observed exposures in healthy humans, to simulated exposures in healthy and infected humans, and to serum PA levels in infected animals. In humans, at 16 mg/kg intravenous, obiltoxaximab AUC was >2 times that in animals, while maximum serum concentrations were comparable to those in animals and were maintained in excess of the concentration required for PA neutralization in infected animals for 2-3 weeks...
December 7, 2016: Clinical and Translational Science
https://www.readbyqxmd.com/read/27925295/parents-perceptions-are-that-their-child-s-health-related-quality-of-life-is-more-impaired-when-they-have-a-wheat-rather-than-a-grass-allergy
#15
Nora Borres, Nora Nilsson, Isabel Drake, Sigrid Sjölander, Caroline Nilsson, Gunilla Hedlin, Björn Nordlund
AIM: It is unknown whether food allergies have greater impact on quality of life than respiratory allergies. This study compared health-related quality of life (HRQoL) in children allergic to wheat or grass. METHODS: We surveyed 63 children with wheat allergies (median age of five) and 72 with grass allergies (median age 12), with their parents. The Child Health Questionnaires for parents (CHQ-PF28) and children (CHQ-CF87) were applied. RESULTS: The parents of children in the wheat group recorded significantly lower CHQ-PF28 scores for the impact of their child's allergy on general behaviour, general health perceptions, parental impact of emotions and time and family activities, than the parents of children with grass allergies (p values <0...
December 7, 2016: Acta Paediatrica
https://www.readbyqxmd.com/read/27925266/marine-mollusk-derived-agents-with-antiproliferative-activity-as-promising-anticancer-agents-to-overcome-chemotherapy-resistance
#16
REVIEW
Maria Letizia Ciavatta, Florence Lefranc, Marianna Carbone, Ernesto Mollo, Margherita Gavagnin, Tania Betancourt, Ramesh Dasari, Alexander Kornienko, Robert Kiss
The chemical investigation of marine mollusks has led to the isolation of a wide variety of bioactive metabolites, which evolved in marine organisms as favorable adaptations to survive in different environments. Most of them are derived from food sources, but they can be also biosynthesized de novo by the mollusks themselves, or produced by symbionts. Consequently, the isolated compounds cannot be strictly considered as "chemotaxonomic markers" for the different molluscan species. However, the chemical investigation of this phylum has provided many compounds of interest as potential anticancer drugs that assume particular importance in the light of the growing literature on cancer biology and chemotherapy...
December 7, 2016: Medicinal Research Reviews
https://www.readbyqxmd.com/read/27925261/photochromic-properties-of-3-deoxyanthocyanidin-pigments-in-nontoxic-solvents
#17
Yuki Yagishita, Mai Mihara, Yoshiumi Kohno, Masashi Shibata
The photochromic properties of some naturally occurring 3-deoxyanthocyanidin pigments were investigated in various nontoxic solvents. When luteolinidin, a representative 3-deoxyanthocyanidin, was dissolved in a mixture of weakly acidic water and an organic solvent with a relative permittivity between 20 and 34, it was possible to repeatedly induce coloration via ultraviolet irradiation and decoloration under light-shielded conditions. 1,3-Butanediol and ethanol, which are approved for use in foods, cosmetics, and household goods, were found to be appropriate organic solvents for this process...
December 2016: Journal of Food Science
https://www.readbyqxmd.com/read/27925258/ohmic-heating-of-an-electrically-conductive-food-package
#18
Kanyawee Kanogchaipramot, Kullanart Tongkhao, Tanaboon Sajjaanantakul, Pitiya Kamonpatana
Ohmic heating through an electrically conductive food package is a new approach to heat the food and its package as a whole after packing to avoid post-process contamination and to serve consumer needs for convenience. This process has been successfully completed using polymer film integrated with an electrically conductive film to form a conductive package. Orange juice packed in the conductive package surrounded with a conductive medium was pasteurized in an ohmic heater. A mathematical model was developed to simulate the temperature distribution within the package and its surroundings...
December 2016: Journal of Food Science
https://www.readbyqxmd.com/read/27925238/danshen-enhanced-cardioprotective-effect-of-cardioplegia-on-ischemia-reperfusion-injury-in-a-human-induced-pluripotent-stem-cell-derived-cardiomyocytes-model
#19
Wei Wei, Yiwei Liu, Qiang Zhang, Yangming Wang, Xiaoling Zhang, Hao Zhang
Myocardial ischemia-reperfusion (I/R) injury is unavoidable during cardioplegic arrest and open-heart surgery. Danshen is one of the most popular traditional herbal medicines in China, which has entered the Food and Drug Administration-approved phase III clinical trial. This study was aimed to develop a human-induced pluripotent stem cell-derived cardiomyocytes (hiPSC-CMs) model to mimic I/R injury and evaluate the cardioprotective effect of regular cardioplegic solution with Danshen. hiPSC-CMs were cultured with the crystalloid cardioplegic solution (Thomas group) and Thomas solution with 2 or 10 µg/mL Danshen (Thomas plus Danshen groups)...
December 7, 2016: Artificial Organs
https://www.readbyqxmd.com/read/27925174/natural-selection-on-immune-defense-a-field-experiment
#20
Laura Langeloh, Jasminca Behrmann-Godel, Otto Seppälä
Predicting the evolution of phenotypic traits requires an understanding of natural selection on them. Despite its indispensability in the fight against parasites, selection on host immune defense has remained understudied. Theory predicts immune traits to be under stabilizing selection due to associated trade-offs with other fitness-related traits. Empirical studies, however, report mainly positive directional selection. This discrepancy could be caused by low phenotypic variation in the examined individuals and/or variation in host resource level that confounds trade-offs in empirical studies...
December 7, 2016: Evolution; International Journal of Organic Evolution
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