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https://www.readbyqxmd.com/read/28550790/trophic-fate-of-inorganic-and-methyl-mercury-in-a-macrophyte-chironomid-food-chain
#1
Rebecca Beauvais-Flück, Frédéric Gimbert, Ophélie Méhault, Claudia Cosio
Dietary transfer of mercury (Hg) is central for its effects on higher trophic animals, nonetheless, its driving parameters and characteristics are not well understood. Here we measured Hg species transfer (uptake) from the macrophyte Elodea nuttallii -mimicking tissues incorporation in sediments after decay- to Chironomus riparius. Methyl-Hg (MMHg) was more transferable than inorganic Hg (IHg) from plant's intracellular and cell wall compartments. After 10-d-long exposure, MMHg was predominantly found in MMHg form in the cytosolic compartment (S) of chironomids, while IHg showed similar concentrations in S and insoluble debris (P) compartments...
May 17, 2017: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/28550725/geographical-variation-and-age-related-dietary-exposure-to-arsenic-in-rice-from-bangladesh
#2
Shofiqul Islam, Mohammad Mahmudur Rahman, M R Islam, Ravi Naidu
An extensive number (965) of rice samples collected by household survey from 73 upazilas (i.e. sub-districts) in Bangladesh was analyzed to determine regional variation, distribution and associated health risks from arsenic (As). No previous study had conducted a study examining such a large number of rice samples. The mean and median concentrations of total As were 126μg/kg and 107μg/kg, respectively, ranging from between 3 and 680μg/kg. Importantly, total As levels of aromatic rice were significantly lower (average 58μg/kg) than non-aromatic rice (average 150μg/kg) and also varied with rice grain size...
May 24, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28550677/mineral-profile-of-children-s-fast-food-menu-samples
#3
Maria Luisa Cervera, Miguel de la Guardia, Manuela Ruiz-de-Cenzano, Arancha Rochina-Marco, Óscar López-Salazar
Children's fast food menus, including hamburgers served with french fries, dessert, and a soft drink, were analyzed to obtain the mineral profile of trace elements. The developed analytical methodology involved sample digestion under pressure inside a microwave oven with a mixture of HNO₃ and H₂O₂ and inductively coupled plasma-optical emission spectrometry. The method was validated by carrying out the analysis of certified reference materials (NIST 1570a spinach leaves, NCS ZC73016 chicken, and NIST 1568a rice flour) and using recovery experiments...
May 26, 2017: Journal of AOAC International
https://www.readbyqxmd.com/read/28550472/salt-induced-na-k-atpase-%C3%AE-%C3%AE-expression-involves-soluble-adenylyl-cyclase-in-endothelial-cells
#4
Mirja Mewes, Johanna Nedele, Katrin Schelleckes, Olga Bondareva, Malte Lenders, Kristina Kusche-Vihrog, Hans-Joachim Schnittler, Stefan-Martin Brand, Boris Schmitz, Eva Brand
High dietary salt intake may lead to vascular stiffness, which predicts cardiovascular diseases such as heart failure, and myocardial and cerebral infarctions as well as renal impairment. The vascular endothelium is a primary target for deleterious salt effects leading to dysfunction and endothelial stiffness. We hypothesize that the Ca(2+)- and bicarbonate-activated soluble adenylyl cyclase (sAC) contributes to Na(+)/K(+)-ATPase expression regulation in vascular endothelial cells and is an important regulator of endothelial stiffness...
May 26, 2017: Pflügers Archiv: European Journal of Physiology
https://www.readbyqxmd.com/read/28550437/hyperoxaluria-in-a-model-of-mini-gastric-bypass-surgery-in-rats
#5
Milene S Ormanji, Fernando Korkes, Renata Meca, Crysthiane S R A Ishiy, Gustavo H C Finotti, Renato R N Ferraz, Ita P Heilberg
BACKGROUND: Bariatric surgery is associated with hyperoxaluria hence predisposing to nephrolithiasis. The present study aimed to investigate the underlying mechanisms contributing to increased urinary oxalate in a mini-gastric bypass (MGB) surgery model in rats under different dietary conditions. The expression of intestinal oxalate transporters was also evaluated. METHODS: Male rats underwent MGB (n = 21) or Sham procedure (n = 21) and after recovery were fed a standard or high-fat diet with or without oxalate for 8 weeks...
May 26, 2017: Obesity Surgery
https://www.readbyqxmd.com/read/28550342/influence-of-dietary-avocado-on-gut-health-in-rats
#6
Gunaranjan Paturi, Christine A Butts, Kerry L Bentley-Hewitt
This study investigated the impact of diets containing various levels of avocado (5, 10 and 15%) on gut health in rats fed for six weeks. Avocado-fed rats had significantly higher food intakes while their body weights remained similar to the control diet-fed rats. No significant changes in intestinal bacterial populations (ileum, cecum and colon) were found in rats fed avocado diets compared to the control diet. Ileum and colon tissues of rats fed avocado diets showed significantly higher expression of genes (β-defensin 1, mucin 3 or mucin 4) and a greater number of mucin-producing goblet cells in the colon...
May 26, 2017: Plant Foods for Human Nutrition
https://www.readbyqxmd.com/read/28549941/dietary-zinc-deficiency-reduced-growth-performance-intestinal-immune-and-physical-barrier-functions-related-to-nf-%C3%AE%C2%BAb-tor-nrf2-jnk-and-mlck-signaling-pathway-of-young-grass-carp-ctenopharyngodon-idella
#7
Zheng-Xing Song, Wei-Dan Jiang, Yang Liu, Pei Wu, Jun Jiang, Xiao-Qiu Zhou, Sheng-Yao Kuang, Ling Tang, Wu-Neng Tang, Yong-An Zhang, Lin Feng
Our study investigated the effects of dietary zinc (Zn) deficiency on growth performance, intestinal immune and physical barrier functions of young grass carp (Ctenopharyngodon idella). A total of 630 grass carp (244.14 ± 0.40 g) were fed graded levels of zinc lactate (10.71, 30.21, 49.84, 72.31, 92.56, 110.78 mg Zn/kg diet) and one zinc sulfate group (56.9 mg Zn/kg diet) for 60 days. At the end of the feeding trial, fish were challenged with Aeromonas hydrophila for 14 days. These results indicated that compared with optimal dietary Zn level, dietary Zn deficiency (10...
May 23, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28549934/in-vitro-metabolomic-approaches-to-investigating-the-potential-biological-effects-of-phenolic-compounds-an-update
#8
REVIEW
Úrsula Catalán, Laura Barrubés, Rosa Maria Valls, Rosa Solà, Laura Rubió
Dietary phenolic compounds (PCs) have been receiving interest for their presumed roles in disease prevention. However, there is a lack of studies on the underlying molecular mechanisms. In this regard, in vitro metabolomic approaches are suitable for the investigation of the molecular changes in response to PC exposure. Up to date, the biological effects of PCs have only been examined for PCs from rosemary (Rosmarinus officinalis), olive oil, and resveratrol using cell-based metabolomic approach, although transcriptomic and/or proteomic studies have also been conducted in the same in vitro cell experiment in some cases...
May 23, 2017: Genomics, Proteomics & Bioinformatics
https://www.readbyqxmd.com/read/28549912/fatty-liver-and-fgf21-physiology
#9
REVIEW
Eleftheria Maratos-Flier
Non alcoholic fatty liver disease is linked to obesity and the metabolic syndrome. As rates of obesity rise it has become the major etiology of liver dysfunction. Despite intense study the molecular mechanisms contributing to the onset of fatty liver remain debatable. Furthermore, few therapies exist and as a result dietary therapy is commonly prescribed and remains problematic. Fibroblast growth factor is a complex metabolic regulator that is synthesized in multiple organs including the liver, with resulting complex systemic effects...
May 23, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/28549908/elucidation-of-the-intestinal-absorption-of-para-aminobenzoic-acid-a-marker-for-dietary-intake
#10
Teruko Imai, Keiichiro Tanaka, Takahiro Yonemitsu, Yuta Yakushiji, Kayoko Ohura
para-Aminobenzoic acid (PABA) has long been used as an indicator of the completeness of 24-hour urine collection by determination of total urinary excretion of PABA and its metabolite, N-acetyl-PABA. N-Acetyl-PABA is formed by human arylamine N-acetyltransferase 1 (NAT1) in liver and intestine. This intestinal metabolism may reduce the urinary recovery of PABA due to secretion of N-acetyl-PABA into the intestinal lumen. In the present study, the effect of intestinal metabolism of PABA on its absorption was quantitatively evaluated by the in situ single-pass perfusion method using rat intestine expressing rat arylamine N-acetyltransferase 2 (Nat2), which is similar to human NAT1...
May 23, 2017: Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28549787/the-gut-brain-axis-in-parkinson-s-disease-possibilities-for-food-based-therapies
#11
Paula Perez-Pardo, Tessa Kliest, Hemraj B Dodiya, Laus M Broersen, Johan Garssen, Ali Keshavarzian, Aletta D Kraneveld
Parkinson's disease (PD) is usually characterized by cardinal motor impairments. However, a range of non-motor symptoms precede the motor-phase and are major determinants for the quality of life. To date, no disease modifying treatment is available for PD patients. The gold standard therapy of levodopa is based on restoring dopaminergic neurotransmission, thereby alleviating motor symptoms, whereas non-motor symptoms remain undertreated. One of the most common non-motor symptoms is gastrointestinal dysfunction usually associated with alpha-synuclein accumulations and low-grade mucosal inflammation in the enteric nervous system...
May 23, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28549760/perception-of-food-consumed-at-home-and-dietary-intake-a-nationwide-study-from-brazil
#12
Maria Fernanda Gombi-Vaca, Paula Martins Horta, Bruna Kulik Hassan, Thalita Fialho da Rocha, Laurits Rohden Skov, Eliseu Verly-Jr
Perception of food consumed is a key factor in acknowledging the need for behavioral change to improve diet quality. We analyzed family dietary intake according to the head of household's perception of satisfaction with food consumed by the family. Households (n = 13,351) that participated in the Brazilian Household Budget Survey and the National Dietary Survey were classified as satisfied or dissatisfied with the food consumed in the home. We compared the family dietary intake of the two groups considering their socio-demographic characteristics...
May 23, 2017: Appetite
https://www.readbyqxmd.com/read/28549738/direct-actions-of-macronutrient-components-on-goldfish-hepatopancreas-in-vitro-to-modulate-the-expression-of-ghr-i-ghr-ii-igf-i-and-igf-ii-mrnas
#13
Juan Ignacio Bertucci, Ayelén Melisa Blanco, Luis Fabián Canosa, Suraj Unniappan
In mammals and fish, somatic growth and metabolism are coordinated by the GH-IGF axis, composed of growth hormone (GH), growth hormone receptors I and II (GHR-I and GHR-II), and the insulin-like growth factors I and II (IGF-I and IGF-II). In order to determine if dietary macronutrients regulate the hepatopancreatic expression of ghr-I, ghr-II, igf-I and igf-II independently of circulating GH, organ culture experiments were conducted. Briefly, goldfish hepatopancreas sections were incubated with different doses of glucose; L-tryptophan; oleic acid; linolenic acid (LNA); eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA)...
May 23, 2017: General and Comparative Endocrinology
https://www.readbyqxmd.com/read/28549665/effects-of-supervised-exercise-and-dietary-nitrate-in-older-adults-with-controlled-hypertension-and-or-heart-failure-with-preserved-ejection-fraction
#14
Hossam A Shaltout, Joel Eggebeen, Anthony P Marsh, Peter H Brubaker, Paul J Laurienti, Jonathan H Burdette, Swati Basu, Ashley Morgan, Patricia C Dos Santos, James L Norris, Timothy M Morgan, Gary D Miller, W Jack Rejeski, Amret T Hawfield, Debra I Diz, J Thomas Becton, Daniel B Kim-Shapiro, Dalane W Kitzman
Aerobic exercise training is an effective therapy to improve peak aerobic power (peak VO2) in individuals with hypertension (HTN, AHA/ACC class A) and heart failure patients with preserved ejection fraction (HFpEF). High nitrate containing beetroot juice (BRJ) also improves sub-maximal endurance and decreases blood pressure in both HTN and HFpEF. We hypothesized that combining an aerobic exercise and dietary nitrate intervention would result in additive or even synergistic positive effects on exercise tolerance and blood pressure in HTN or HFpEF...
May 23, 2017: Nitric Oxide: Biology and Chemistry
https://www.readbyqxmd.com/read/28549583/taste-sensitivity-to-sucrose-is-lower-in-outbred-sprague-dawley-phenotypic-obesity-prone-rats-than-obesity-resistant-rats
#15
Huiling Sun, Junbao Yan, Bo Sun, Lin Song, Jianqun Yan
The purpose of the present study was to better understand the role of sweet taste perception in dietary behavior and body weight in outbred Sprague-Dawley phenotypic obesity prone and obesity resistant rats by measuring sucrose taste sensitivity using a conditioned taste aversion paradigm. Rats were given a high fat diet for 2 weeks and were assigned as obesity-prone (P, upper tertile) or obesity-resistant (R, lower tertile) based on weight gain. Each group were then given either chow (C, 10% fat) or the high fat diet (F, 46% fat) for the remainder of the experiment (∼18 weeks) such that there were four groups - obesity prone on chow (C-P), obesity prone on high fat (H-P), obesity resistant on chow (C-R), obesity resistant on high fat (H-R)...
May 23, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28549571/dietary-sources-of-protein-and-chronic-kidney-disease-progression-the-proof-may-be-in-the-pattern
#16
EDITORIAL
Jaimon T Kelly, Juan Jesús Carrero
No abstract text is available yet for this article.
May 23, 2017: Journal of Renal Nutrition
https://www.readbyqxmd.com/read/28549473/attitudes-of-consumers-and-live-poultry-workers-to-central-slaughtering-in-controlling-h7n9-a-cross-sectional-study
#17
Xiao Lin, Dingmei Zhang, Xinwei Wang, Yun Huang, Zhicheng Du, Yaming Zou, Jiahai Lu, Yuantao Hao
BACKGROUND: Guangdong Province in the Pearl River Delta of Southeast China is among the areas in the country with the highest rates of avian flu cases. In order to control the outbreak of human-infected H7N9 cases, Guangdong launched a new policy on the central slaughtering of live poultry in 2015. This study aims to evaluate attitudes of consumers and live-poultry workers toward the policy. The live-poultry workers consisted of two sub-groups: live-poultry traders and poultry farm workers...
May 26, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28549240/dietary-salecan-reverts-partially-the-metabolic-gene-expressions-and-nmr-based-metabolomic-profiles-from-high-fat-diet-induced-obese-rats
#18
Qi Sun, Minghui Li, Xiao Yang, Xi Xu, Junsong Wang, Jianfa Zhang
Previous studies suggest that dietary salecan (a water-soluble β-glucan) effectively reduces high-fat-diet-induced adiposity through disturbing bile-acid-promoted emulsification in mice. However, the effects of salecan on metabolic genes and metabolites involved in lipid accumulation are mostly unknown. Here, we confirmed that dietary 3% and 6% salecan for 4 weeks markedly decreased fat accumulation in liver and adipose tissue in high-fat-diet rats, displaying a decrease in mRNA levels of SREBP1-C, FAS, SCD1 and ACC1 involved in de novo lipogenesis and a reduction of levels of GPAT1, DGAT1 and DGAT2 related to triglyceride synthesis...
May 5, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/28549196/effects-of-enterococcus-faecium-slb-120-on-growth-performance-blood-parameters-relative-organ-weight-breast-muscle-meat-quality-excreta-microbiota-shedding-and-noxious-gas-emission-in-broilers
#19
R X Lan, S I Lee, I H Kim
This 5-week study was conducted to determine the effects of Enterococcus faecium (SLB 120) on growth performance, blood parameters, relative organ weight, breast muscle meat quality, excreta microbiota shedding, and noxious gas emission in broilers. A total of 816 one-day-old male broilers were allocated to 4 groups with 12 replications (17 broilers/pen) according to body weight (43.2 ± 0.32 g). Dietary treatment groups were: (1) CON, basal diet, (2) T1, CON + 0.05% E. faecium, (3) T2, CON + 0.10% E. faecium, (4) T3, CON + 0...
May 26, 2017: Poultry Science
https://www.readbyqxmd.com/read/28549143/bile-acids-and-tryptophan-metabolism-are-novel-pathways-involved-in-metabolic-abnormalities-in-bpa-exposed-pregnant-mice-and-male-offspring
#20
Martha Susiarjo, Frances Xin, Martha Stefaniak, Clementina Mesaros, Rebecca A Simmons, Marisa S Bartolomei
Increasing evidence has demonstrated that exposure to endocrine disrupting chemicals (EDCs) impacts maternal and fetal health, but the underlying mechanisms are still unclear. We have previously shown that dietary exposure to 10 µg/kg bw/day and 10 mg/kg bw/day bisphenol A (BPA) during pregnancy induced metabolic abnormalities in F1 male offspring and gestational glucose intolerance in F0 pregnant mice. The aim of this study is to elucidate the underlying etiologies of BPA exposure-induced metabolic disease by analyzing male fetal liver metabolome...
May 25, 2017: Endocrinology
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