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https://www.readbyqxmd.com/read/28431184/congener-specific-disposition-of-chiral-polychlorinated-biphenyls-in-lactating-mice-and-their-offspring-implications-for-pcb-developmental-neurotoxicity
#1
Izabela Kania-Korwel, Tracy Lukasiewicz, Christopher D Barnhart, Marianna Stamou, Haeun Chung, Kevin M Kelly, Stelvio Bandiera, Pamela J Lein, Hans-Joachim Lehmler
Chiral polychlorinated biphenyl (PCB) congeners have been implicated by laboratory and epidemiological studies in PCB developmental neurotoxicity. These congeners are metabolized by cytochrome P450 (P450) enzymes to potentially neurotoxic hydroxylated metabolites (OH-PCBs). The present study explores the enantioselective disposition and toxicity of two environmentally relevant, neurotoxic PCB congeners and their OH-PCB metabolites in lactating mice and their offspring following dietary exposure of the dam. Female C57BL/6N mice (8 weeks old) were fed daily, beginning two weeks prior to conception and continuing throughout gestation and lactation, with 3...
April 14, 2017: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/28366815/liraglutide-suppression-of-caloric-intake-competes-with-the-intake-promoting-effects-of-a-palatable-cafeteria-diet-but-does-not-impact-food-or-macronutrient-selection
#2
Kellie M Hyde, Ginger D Blonde, Carel W le Roux, Alan C Spector
Liraglutide, a Glucagon-Like Peptide-1 (GLP-1) receptor agonist, is used as a treatment for Type 2 diabetes mellitus and obesity because it improves glycemia and decreases food intake. Here, we tested whether chronic activation of the GLP-1 receptor system with liraglutide would induce decreases in intake accompanied by changes in proportional food or macronutrient intake similar to those seen following RYGB in rats when a variety of palatable food options are available. A "cafeteria diet" was used that included: laboratory rodent chow, refried beans (low-fat/low-sugar), low-fat yogurt (low-fat/high-sugar), peanut butter (high-fat/low-sugar) and sugar-fat whip (high-fat/high-sugar)...
March 30, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/28343725/newly-developed-method-for-mouse-olfactory-behavior-tests-using-an-automatic-video-tracking-system
#3
Hyung-Ju Cho, Yong Hyuk Lee, Bo Ra Kim, Hong-Kyung Kim, Hyo Jin Chung, Sang Chul Park, Je Kyung Seong, Joo-Heon Yoon, Chang-Hoon Kim
OBJECTIVE: The mouse is the most popular animal model in olfactory research. Behavior tests with odorants are essential for determining olfactory phenotype. To the best of our knowledge, the mouse olfactory behavior test has not been standardized, making the results vulnerable to inter-observer variation. We sought to develop a new mouse olfactory behavior test assessed by an automatic video tracking system with minimal inter-observer variation. METHODS: A video-tracking system was used to automatically track mouse behavior in standard breeding cages with C57BL/6N mice...
March 23, 2017: Auris, Nasus, Larynx
https://www.readbyqxmd.com/read/28266703/changes-to-infant-feeding-guidelines-relevance-to-dermatologists
#4
REVIEW
Celestine C Wong, Katrina J Allen, David Orchard
The newly revised Australian Infant Feeding Guidelines recommends that all infants, including those at high risk of allergy, be introduced foods traditionally considered allergenic (such as peanut butter, dairy, wheat and egg) within the first year of life. High-risk infants are those with early onset eczema (<3-months old) or with moderate to severe eczema not responding to treatment (<6-months old). Eczema can also represent a symptom of allergy presentation and the recommended introduction of some foods in this group may lead to allergic reactions at home...
March 7, 2017: Australasian Journal of Dermatology
https://www.readbyqxmd.com/read/28194094/food-seeking-in-a-risky-environment-a-method-for-evaluating-risk-and-reward-value-in-food-seeking-and-consumption-in-mice
#5
Sarah H Lockie, Clare V McAuley, Sasha Rawlinson, Natalie Guiney, Zane B Andrews
Most studies that measure food intake in mice do so in the home cage environment. This necessarily means that mice do not engage in food seeking before consumption, a behavior that is ubiquitous in free-living animals. We modified and validated several commonly used anxiety tests to include a palatable food reward within the anxiogenic zone. This allowed us to assess risk-taking behavior in food seeking in mice in response to different metabolic stimuli. We modified the open field test and the light/dark box by placing palatable peanut butter chips within a designated food zone inside the anxiogenic zone of each apparatus...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28185785/can-antibiotics-cause-a-psychosis-case-report-and-review-of-the-literature
#6
Duy Ly, Lynn E DeLisi
It is relatively unknown that some of the possible side effects of antibiotic treatment can be transient psychotic episodes and other encephalopathies such as seizure disorders. Since these are rare events, there have not been many studies about them, nor is there a clear understanding of the underlying basis for these symptoms. This phenomenon was recently brought to our attention by a patient whose case history is discussed here. For the past few years, he has been diagnosed at different times with schizophrenia, schizoaffective disorder, bipolar disorder with psychosis, temporal lobe epilepsy, and psychogenic nonepileptic seizures...
February 6, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28159287/adaption-of-an-in-vitro-digestion-method-to-screen-carotenoid-liberation-and-in-vitro-accessibility-from-differently-processed-spinach-preparations
#7
Jane N Eriksen, Amy Y Luu, Lars O Dragsted, Eva Arrigoni
Dark green leafy vegetables are primary food sources for lutein and β-carotene, however these bioactives have low bioavailability. The effects of mechanical and thermal processing as well as fat addition and fat type on lutein and β-carotene liberation and in vitro accessibility from spinach were investigated. Lutein liberation and in vitro accessibility were three-fold higher from spinach puree compared to whole leaves. Results for β-carotene liberation were similar, whereas that of β-carotene accessibility was only about two-fold...
June 1, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28146283/rapid-inverse-method-to-measure-thermal-diffusivity-of-low-moisture-foods
#8
Yoshiki Muramatsu, Ibrahim Greiby, Dharmendra K Mishra, Kirk D Dolan
Thermal diffusivity is an important transport property needed in modeling and computations of transient heat transfer in basic food processing operations. In addition, the prediction of nutritional and microbial changes occurring in food during thermal processing requires knowledge of thermal diffusivity of foods. The objectives of this study were to develop a new nonisothermal and nonlinear determination method of thermal diffusivity and to measure the thermal diffusivity of low-moisture foods using that new method...
February 1, 2017: Journal of Food Science
https://www.readbyqxmd.com/read/28005920/fortified-snack-reduced-anemia-in-rural-school-aged-children-of-haiti-a-cluster-randomized-controlled-trial
#9
Lora Iannotti, Sherlie Jean-Louis Dulience, Saminetha Joseph, Charmayne Cooley, Teresa Tufte, Katherine Cox, Jacob Eaton, Jacques Raymond Delnatus, Patricia B Wolff
BACKGROUND: Nutrition in the school-aged child matters for brain development and public policy investments globally. Our group previously conducted a trial in urban schools of Haiti to examine the effects of a fortified peanut butter snack, Vita Mamba, with limited findings for anemia. OBJECTIVE: We aimed to test the hypothesis that Vita Mamba, with systematic deworming in both study arms, would significantly reduce anemia among rural, school-aged children. METHODS: A cluster, randomized longitudinal study was conducted in two rural communities of the North-East Department of Haiti, 2014-2015...
2016: PloS One
https://www.readbyqxmd.com/read/27983809/a-collaborative-study-determination-of-mycotoxins-in-corn-peanut-butter-and-wheat-flour-using-stable-isotope-dilution-assay-sida-and-liquid-chromatography-tandem-mass-spectrometry-lc-ms-ms
#10
Kai Zhang, Matthew R Schaab, Gavin Southwood, Elizabeth R Tor, Linda S Aston, Wenlu Song, Brian Eitzer, Sanghamitra Majumdar, Theodore Lapainis, Huy Mai, Kevin Tran, Aref El-Demerdash, Victor Vega, Yanxuan Cai, Jon W Wong, Alexandra J Krynitsky, Timothy H Begley
A collaborative study was conducted to evaluate stable isotope dilution assay (SIDA) and LC-MS/MS for the simultaneous determination of aflatoxins B1, B2, G1, and G2; deoxynivalenol; fumonisins B1, B2, and B3; ochratoxin A; HT-2 toxin; T-2 toxin; and zearalenone in foods. Samples were fortified with 12 (13)C uniformly labeled mycotoxins ((13)C-IS) corresponding to the native mycotoxins and extracted with acetonitrile/water (50:50 v/v), followed by centrifugation, filtration, and LC-MS/MS analysis. In addition to certified reference materials, the six participating laboratories analyzed corn, peanut butter, and wheat flour fortified with the 12 mycotoxins at concentrations ranging from 1...
January 3, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/27933645/aflatoxin-biomarkers-in-hair-may-facilitate-long-term-exposure-studies
#11
Innocent Mupunga, Christo D Izaaks, Leshweni J Shai, David R Katerere
Aflatoxins are highly toxic fungal metabolites produced by some members of the Aspergillus species. They are low molecular weight lipophilic compounds that are easily absorbed from the gastrointestinal tract. They contaminate most staple foods, including maize, peanuts, peanut butter and sorghum mainly in the tropics where hot and humid conditions promote fungal growth. Absorbed aflatoxins are metabolized by the cytochrome P450 enzyme system in the liver into toxic metabolites. Aflatoxin B (AFB)1 is the most toxic, carcinogenic and mutagenic naturally occurring toxin...
December 9, 2016: Journal of Applied Toxicology: JAT
https://www.readbyqxmd.com/read/27554443/peanut-butter
#12
J L H Hans Evers
No abstract text is available yet for this article.
October 2016: Human Reproduction
https://www.readbyqxmd.com/read/27554151/influence-of-water-activity-on-inactivation-of-escherichia-coli-o157-h7-salmonella-typhimurium-and-listeria-monocytogenes-in-peanut-butter-by-microwave-heating
#13
Won-Jae Song, Dong-Hyun Kang
This study evaluated the efficacy of a 915 MHz microwave with 3 different electric power levels to inactivate three pathogens in peanut butter with different aw. Peanut butter inoculated with Escherichia coli O157:H7, Salmonella enterica serovar Typhimurium and Listeria monocytogenes (0.3, 0.4, and 0.5 aw) were treated with a 915 MHz microwave with 2, 4, and 6 kW for up to 5 min. Six kW 915 MHz microwave treatment for 5 min reduced these three pathogens by 1.97 to >5.17 log CFU/g. Four kW 915 MHz microwave processing for 5 min reduced these pathogens by 0...
December 2016: Food Microbiology
https://www.readbyqxmd.com/read/27393774/allergic-fungal-rhinosinusitis
#14
Alice E W Hoyt, Larry Borish, José Gurrola, Spencer Payne
This article reviews the history of allergic fungal rhinosinusitis and the clinical, pathologic, and radiographic criteria necessary to establish its diagnosis and differentiate this disease from other types of chronic rhinosinusitis. Allergic fungal rhinosinusitis is a noninvasive fungal form of sinus inflammation characterized by an often times unilateral, expansile process in which the typical allergic "peanut-butter-like" mucin contributes to the formation of nasal polyps, hyposmia/anosmia, and structural changes of the face...
July 2016: Journal of Allergy and Clinical Immunology in Practice
https://www.readbyqxmd.com/read/27373755/early-nutrition-transition-in-haiti-linking-food-purchasing-and-availability-to-overweight-status-in-school-aged-children
#15
Alexandra B Morshed, Haley V Becker, Jacques Raymond Delnatus, Patricia B Wolff, Lora L Iannotti
OBJECTIVE: The primary aim was to examine the association of socio-economic factors and diet with overweight (including obesity) among school-aged children in Haiti. The secondary aim was to describe food availability and the physical activity built environment in participating schools. DESIGN: This cross-sectional study examined baseline data from the intervention Mamba study assessing the effectiveness of a fortified peanut butter paste in school-aged children...
December 2016: Public Health Nutrition
https://www.readbyqxmd.com/read/27340104/effect-of-leaf-digestion-and-artemisinin-solubility-for-use-in-oral-consumption-of-dried-artemisia-annua-leaves-to-treat-malaria
#16
COMPARATIVE STUDY
Matthew R Desrosiers, Pamela J Weathers
ETHNOPHARMACOLOGICAL RELEVANCE: Artemisia annua L. produces the antimalarial sesquiterpene lactone, artemisinin (AN), and was traditionally used by the Chinese to treat fever, which was often caused by malaria. AIM OF THE STUDY: To measure effects of plant-based and dietary components on release of artemisinin and flavonoids from A. annua dried leaves (DLA) after simulated digestion. MATERIALS AND METHODS: Simulated digestion was performed on DLA in four types of capsules, or in conjunction with protein, and protein-based foods: dry milk, casein, bovine serum albumin, peanuts, peanut butter, Plumpy'nut(®), and A...
August 22, 2016: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/27330049/evaluation-of-the-3m%C3%A2-molecular-detection-assay-mda-2-salmonella-for-the-detection-of-salmonella-spp-in-select-foods-and-environmental-surfaces-collaborative-study-first-action-2016-01
#17
Patrick Bird, Jonathan Flannery, Erin Crowley, James R Agin, David Goins, Lisa Monteroso
The 3M™ Molecular Detection Assay (MDA) 2 - Salmonella uses real-time isothermal technology for the rapid and accurate detection of Salmonella spp. from enriched select food, feed, and food-process environmental samples. The 3M MDA 2 - Salmonella was evaluated in a multilaboratory collaborative study using an unpaired study design. The 3M MDA 2 - Salmonella was compared to the U.S. Food and Drug Administration Bacteriological Analytical Manual Chapter 5 reference method for the detection of Salmonella in creamy peanut butter, and to the U...
July 2016: Journal of AOAC International
https://www.readbyqxmd.com/read/27296427/a-case-for-regular-aflatoxin-monitoring-in-peanut-butter-in-sub-saharan-africa-lessons-from-a-3-year-survey-in-zambia
#18
Samuel M C Njoroge, Limbikani Matumba, Kennedy Kanenga, Moses Siambi, Farid Waliyar, Joseph Maruwo, Emmanuel S Monyo
A 3-year comprehensive analysis of aflatoxin contamination in peanut butter was conducted in Zambia, sub-Saharan Africa. The study analyzed 954 containers of 24 local and imported peanut butter brands collected from shops in Chipata, Mambwe, Petauke, Katete, and Nyimba districts and also in Lusaka from 2012 to 2014. For analysis, a sample included six containers of a single brand, from the same processing batch number and the same shop. Each container was quantitatively analyzed for aflatoxin B1 (AFB1) in six replicates by using competitive enzyme-linked immunosorbent assay; thus, aflatoxin contamination level of a given sample was derived from an average of 36 test values...
May 2016: Journal of Food Protection
https://www.readbyqxmd.com/read/27291651/introduction-of-peanuts-in-younger-siblings-of-children-with-peanut-allergy-a-prospective-double-blinded-assessment-of-risk-of-diagnostic-tests-and-an-analysis-of-patient-preferences
#19
P Bégin, F Graham, K Killer, J Paradis, L Paradis, A Des Roches
BACKGROUND: The prevalence of peanut allergy in younger siblings of children with peanut allergy has been reported between 7% and 8.5%, but the anaphylactic risk at the time of introduction is currently unknown, which limits our ability to best counsel parents on this issue. OBJECTIVE: To determine the risk of anaphylaxis and working parameters of allergy testing in this context. METHODS: One hundred and fifty-four peanut-naïve younger siblings of peanut-allergic children underwent double-blinded skin testing, followed by parent-led peanut introduction...
December 2016: Allergy
https://www.readbyqxmd.com/read/27283695/validation-of-analytical-methods-for-ethyl-carbamate-in-nine-food-matrices
#20
Dayeon Ryu, Bogyoung Choi, Nayoung Kim, Eunmi Koh
Ethyl carbamate (EC) is formed through a reaction between ethanol and either cyanate or N-carbamyl compounds. This study aimed to develop and validate analytical methods for EC determination in nine food matrices: apple juice, soju, milk, corn oil, rice porridge, peanut butter, beef, flat fish, and sea mustard. Differences from AOAC procedure were use of d5-EC as internal standard, dilution of alcohol content, removal of lipophilic compounds by hexane, and removal of hydrophilic polysaccharides by gel-forming...
November 15, 2016: Food Chemistry
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