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https://www.readbyqxmd.com/read/27926437/involvement-of-opioid-signaling-in-food-preference-and-motivation-studies-in-laboratory-animals
#1
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/27925141/nutritional-interventions-that-slow-the-age-associated-decline-in-renal-function-in-a-canine-geriatric-model-for-elderly-humans
#2
J A Hall, M Yerramilli, E Obare, M Yerramilli, K S Panickar, G Bobe, D E Jewell
OBJECTIVE: To determine the effects of feeding traditional and renal protective foods (RPF) supplemented with functional food bioactives on glomerular filtration rate (GFR), lean body percent (LB%), and selected circulating biomarker and metabolite concentrations in a geriatric dog model. DESIGN: Randomized block design and cross-sectional study. SETTING: Hill's Pet Nutrition, Inc. dog colony. PARTICIPANTS: Eighty-one geriatric dogs (mean age, 10...
2016: Journal of Nutrition, Health & Aging
https://www.readbyqxmd.com/read/27924727/metabolomics-of-healthy-berry-fruits
#3
Gilda D Urso, Sonia Piacente, Cosimo Pizza, Paola Montoro
The consumption of berry-type fruits has become very popular in recent years because of their positive effects on human health. Berries are in fact widely known for their health-promoting benefits, including prevention of chronic disease, cardiovascular disease and cancer. Berries are a rich source of bioactive metabolites, such as vitamins, minerals, and phenolic compounds, mainly anthocyanins. Numerous in vitro and in vivo studies recognized the health effects of berries and their function as bioactive modulators of various cell functions associated with oxidative stress...
December 5, 2016: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/27924658/the-relationship-between-functional-ovarian-cysts-and-vitamin-a-vitamin-e-and-folate-intake
#4
Mahin Tafazoli, Elham Fazeli, Mohsen Nematy, Narjes Bahri, Salmeh Dadgar
This study aimed to clarify the relationship between functional ovarian cysts and vitamin A, vitamin E, and folate intake. This case-control study evaluated 265 women of reproductive age who presented at gynaecology clinics of three hospitals in Mashhad, Iran. While women in the ovarian cyst group [n = 132] had functional ovarian cysts, control group [n = 133] consisted of women without functional ovarian cysts. The participants' vitamin A, vitamin E, and folate intake was assessed using the Food Frequency Questionnaire...
December 7, 2016: Journal of Obstetrics and Gynaecology: the Journal of the Institute of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/27924539/targeting-ochratoxin-biosynthetic-genes
#5
Antonia Gallo, Giancarlo Perrone
The pathway of ochratoxin A (OTA) biosynthesis has not yet been completely elucidated. Essentially, two kind of genes have been demonstrated to be involved in the biosynthesis of OTA. One of them is the nrps gene encoding a non-ribosomal peptide synthetase (NRPS) which catalyzes the ligation between the isocoumarin group, constituting the polyketide group of OTA molecule, and the amino acid phenylalanine.Here we describe a conventional PCR method developed for the detection of OTA-producing molds belonging to Penicillium and Aspergillus genera by Luque et al...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/27923717/characterization-of-exploratory-activity-and-learning-ability-of-healthy-and-schizophrenia-like-rats-in-a-square-corridor-system-ambitus
#6
G Horvath, P Liszli, G Kekesi, A Büki, G Benedek
The rodent tasks with food rewards are useful methods to evaluate memory functions, including hole-board and corridor tests. The AMBITUS system (a square corridor with several food rewards), as a combination of these tests, was developed for the investigation of a variety of parameters associated with exploration and cognitive performance in rodents. Experiments were performed to characterize these behaviors in healthy rats and a new "schizophrenia-like" rat substrain with impaired learning ability to reveal the reliability in tests related to these functions...
December 3, 2016: Physiology & Behavior
https://www.readbyqxmd.com/read/27923189/sensitive-immunoassay-based-detection-of-vibrio-parahaemolyticus-using-capture-and-labeling-particles-in-a-stationary-liquid-phase-lab-on-a-chip
#7
Byunghee Park, Suk-Jung Choi
In the present study, a method was developed for detection of Vibrio parahaemolyticus based on a stationary liquid phase lab-on-a-chip (SLP LOC). The present SLP LOC comprises a sample chamber, washing chamber, and detection chamber connected by two channels. The method utilizes two types of particles: capture particles (CPs), which are magnetic nanoparticles functionalized with antibody; and labeling particles (LPs), which are silica nanoparticles functionalized with horseradish peroxidase and antibody. Samples were added to the sample chamber with CPs and LPs, forming a CP-bacteria-LP complex, and the complex was transported to the detection chamber containing chromogenic substrate solution...
December 1, 2016: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/27921399/antioxidant-and-antidiabetic-properties-of-tartary-buckwheat-rice-flavonoids-after-in-vitro-digestion
#8
Tao Bao, Ye Wang, Yu-Ting Li, Vemana Gowd, Xin-He Niu, Hai-Ying Yang, Li-Shui Chen, Wei Chen, Chong-de Sun
Oxidative stress and diabetes have a tendency to alter protein, lipid, and DNA moieties. One of the strategic methods used to reduce diabetes-associated oxidative stress is to inhibit the carbohydrate-digesting enzymes, thereby decreasing gastrointestinal glucose production. Plant-derived natural antioxidant molecules are considered a therapeutic tool in the treatment of oxidative stress and diabetes. The objective of this study was to identify tartary buckwheat rice flavonoids and evaluate the effect of in vitro digestion on their antioxidant and antidiabetic properties...
2016: Journal of Zhejiang University. Science. B
https://www.readbyqxmd.com/read/27921303/eosinophils-from-eosinophilic-oesophagitis-patients-have-t-cell-suppressive-capacity-and-express-foxp3
#9
C Lingblom, J Wallander, M Ingelsten, H Bergquist, M Bove, R Saalman, A Welin, C Wennerås
Eosinophilic esophagitis (EoE) is an antigen-driven T cell-mediated chronic inflammatory disease where food and environmental antigens are thought to have a role. Human eosinophils express the immunoregulatory protein galectin-10 and have T cell suppressive capacity similar to regulatory T cells (Tregs ). We hypothesized that one function of eosinophils in EoE might be to regulate the T cell-driven inflammation in the oesophagus. This was tested by evaluating the suppressive capacity of eosinophils isolated from the blood of adult EoE patients in a mixed lymphocyte reaction...
November 5, 2016: Clinical and Experimental Immunology
https://www.readbyqxmd.com/read/27921039/clinical-manifestation-and-management-of-adpkd-in-western-countries
#10
REVIEW
Claudia Sommerer, Martin Zeier
BACKGROUND: Autosomal dominant polycystic kidney disease (ADPKD) is the most common hereditary kidney disease in Western countries. The prevalence is between 2.4/10,000 and 3.9/10,000. ADPKD represents a systemic disease resulting in deterioration in renal function. Until now, mutations in two genes (PKD1 and PKD2) have been identified. Recently, the European Medicines Agency (EMA) approved the use of the vasopressin V2 receptor antagonist tolvaptan to slow the progression of cyst development and renal insufficiency connected with ADPKD in adult patients with chronic kidney disease stages 1-3 at initiation of treatment with evidence of rapidly progressing disease...
October 2016: Kidney Diseases
https://www.readbyqxmd.com/read/27920967/a-comparison-of-descriptive-and-functional-analyses-of-inappropriate-mealtime-behavior
#11
Carrie S W Borrero, Jennie D England, Ben Sarcia, Julia N Woods
In recent years, rather than being used to assess the potential function of a response, descriptive assessment methods have been applied to evaluate potential consequences or contingencies for problem behavior (Borrero, Woods, Borrero, Masler, & Lesser in Journal of Applied Behavior Analysis, 43, 71-88. doi: 10.1901/jaba.2010.43-71, 2010) or to assist with designing baseline conditions to approximate caregiver behavior (Casey et al. in Behavior Modification, 33, 537-558. doi: 10.1177/0145445509341457, 2009)...
December 2016: Behavior Analysis in Practice
https://www.readbyqxmd.com/read/27920772/streptococcus-thermophilus-apc151-strain-is-suitable-for-the-manufacture-of-naturally-gaba-enriched-bioactive-yogurt
#12
Daniel M Linares, Tom F O'Callaghan, Paula M O'Connor, R P Ross, Catherine Stanton
Consumer interest in health-promoting food products is a major driving force for the increasing global demand of functional (probiotic) dairy foods. Yogurt is considered the ideal medium for delivery of beneficial functional ingredients. Gamma-amino-butyric acid has potential as a bioactive ingredient in functional foods due to its health-promoting properties as an anti-stress, anti-hypertensive, and anti-diabetic agent. Here, we report the use of a novel Streptococcus thermophilus strain, isolated from the digestive tract of fish, for production of yogurt naturally enriched with 2 mg/ml of gamma-amino-butyric acid (200 mg in a standard yogurt volume of 100 ml), a dose in the same range as that provided by some commercially available gamma-amino-butyric acid supplements...
2016: Frontiers in Microbiology
https://www.readbyqxmd.com/read/27920770/the-use-of-transposon-insertion-sequencing-to-interrogate-the-core-functional-genome-of-the-legume-symbiont-rhizobium-leguminosarum
#13
Benjamin J Perry, Mir S Akter, Christopher K Yost
The free-living legume symbiont Rhizobium leguminosarum is of significant economic value because of its ability to provide fixed nitrogen to globally important leguminous food crops, such as peas and lentils. Discovery based research into the genetics and physiology of R. leguminosarum provides the foundational knowledge necessary for understanding the bacterium's complex lifestyle, necessary for augmenting its use in an agricultural setting. Transposon insertion sequencing (INSeq) facilitates high-throughput forward genetic screening at a genomic scale to identify individual genes required for growth in a specific environment...
2016: Frontiers in Microbiology
https://www.readbyqxmd.com/read/27920542/protective-effect-of-tartary-buckwheat-on-renal-function-in-type-2-diabetics-a-randomized-controlled-trial
#14
Ju Qiu, Zaigui Li, Yuchang Qin, Yanfen Yue, Yanping Liu
Tartary buckwheat (TB) has been reported to be associated with a decreased risk of type 2 diabetes mellitus (T2DM), and T2DM has had a major impact on the development of diabetic kidney disease (DKD). Thus, the hypothesis that a daily intake of TB will improve DKD risk factors, including urinary albumin to creatinine ratio (UACR), urea nitrogen (UN), serum creatinine, and uric acid was tested. In a parallel, randomized, open-label controlled trial, 104 T2DM patients were randomly assigned to a diet control group (systematic diet plans and intensive nutritional education) or a TB intervention group (daily replacement of a portion of staple foods with TB foods)...
2016: Therapeutics and Clinical Risk Management
https://www.readbyqxmd.com/read/27920386/does-eutrophication-driven-evolution-change-aquatic-ecosystems
#15
REVIEW
Timothy J Alexander, Pascal Vonlanthen, Ole Seehausen
Eutrophication increases primary production and changes the relative abundance, taxonomic composition and spatial distribution of primary producers within an aquatic ecosystem. The changes in composition and location of resources alter the distribution and flow of energy and biomass throughout the food web. Changes in productivity also alter the physico-chemical environment, which has further effects on the biota. Such ecological changes influence the direction and strength of natural and sexual selection experienced by populations...
January 19, 2017: Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
https://www.readbyqxmd.com/read/27919711/epigenetic-dysfunctional-diseases-and-therapy-for-infection-and-inflammation
#16
REVIEW
Saheli Samanta, Sheeja Rajasingh, Thuy Cao, Buddhadeb Dawn, Johnson Rajasingh
Even though the discovery of the term 'epigenetics' was in the 1940s, it has recently become one of the most promising and expanding fields to unravel the gene expression pattern in several diseases. The most well studied example is cancer, but other diseases like metabolic disorders, autism, or inflammation-associated diseases such as lung injury, autoimmune disease, asthma, and type-2 diabetes display aberrant gene expression and epigenetic regulation during their occurrence. The change in the epigenetic pattern of a gene may also alter gene function because of a change in the DNA status...
December 2, 2016: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/27919692/improved-production-of-2-fucosyllactose-in-engineered-escherichia-coli-by-expressing-putative-%C3%AE-1-2-fucosyltransferase-wcfb-from-bacteroides-fragilis
#17
Young-Wook Chin, Ji-Yeong Kim, Jae-Han Kim, Sang-Min Jung, Jin-Ho Seo
2'-Fucosyllactose (2-FL) is one of most abundant oligosaccharides in human milk, which is involved in many biological functions for infant health. Since 2-FL has a great potential in application to functional food materials and pharmaceuticals, several microbial systems for mass production of 2-FL have been developed in recent years. Microbial production of 2-FL was suggested to be influenced by a number of factors including fucosylation activity of α-1,2-fucosyltransferase. In the present study, the wcfB gene coding for α-1,2-fucosyltransferase from Bacteroides fragilis was screened from eleven candidates of putative α-1,2-fucosyltransferase...
December 2, 2016: Journal of Biotechnology
https://www.readbyqxmd.com/read/27919552/decoding-the-ecological-function-of-accessory-genome
#18
Michelle Qiu Carter
Shiga toxin-producing Escherichia coli O157:H7 primarily resides in cattle asymptomatically, and can be transmitted to humans through food. A study by Lupolova et al. applied a machine-learning approach to complex pan-genome information and predicted that only a small subset of bovine isolates have the potential to cause diseases in humans.
December 2, 2016: Trends in Microbiology
https://www.readbyqxmd.com/read/27919319/chemogenetic-inhibition-of-the-medial-prefrontal-cortex-reverses-the-effects-of-rem-sleep-loss-on-sucrose-consumption
#19
Kristopher McEown, Yohko Takata, Yoan Cherasse, Nanae Nagata, Kosuke Aritake, Michael Lazarus
Rapid eye movement (REM) sleep loss is associated with increased consumption of weight-promoting foods. The prefrontal cortex (PFC) is thought to mediate reward anticipation. However, the precise role of the PFC in mediating reward responses to highly palatable foods (HPF) after REM sleep deprivation is unclear. We selectively reduced REM sleep in mice over a 25-48 hr period and chemogenetically inhibited the medial PFC (mPFC) by using an altered glutamate-gated and ivermectin-gated chloride channel that facilitated neuronal inhibition through hyperpolarizing infected neurons...
December 6, 2016: ELife
https://www.readbyqxmd.com/read/27919317/drosophila-neprilysins-control-insulin-signaling-and-food-intake-via-cleavage-of-regulatory-peptides
#20
Benjamin Hallier, Ronja Schiemann, Eva Cordes, Jessica Vitos-Faleato, Stefan Walter, Jürgen J Heinisch, Anders Malmendal, Achim Paululat, Heiko Meyer
Insulin and IGF signaling are critical to numerous developmental and physiological processes, with perturbations being pathognomonic of various diseases, including diabetes. Although the functional roles of the respective signaling pathways have been extensively studied, the control of insulin production and release is only partially understood. Herein, we show that in Drosophila expression of insulin-like peptides is regulated by neprilysin activity. Concomitant phenotypes of altered neprilysin expression included impaired food intake, reduced body size, and characteristic changes in the metabolite composition...
December 6, 2016: ELife
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