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https://www.readbyqxmd.com/read/28346839/characterization-of-vancomycin-resistant-enterococcus-faecalis-and-enterococcus-faecium-isolated-from-fresh-produces-and-human-fecal-samples
#1
Min-Chan Kim, Min-Hyeok Cha, Jae-Gee Ryu, Gun-Jo Woo
Increased enterococcal infections in hospitals and multidrug-resistant and vancomycin-resistant enterococci (VRE) isolated from humans, animals, and food sources raised public health concern on the presence of VRE in multiple sources. We performed a comparative analysis of the antimicrobial resistance and genetics of VRE isolates derived from fresh produce and human fecal samples. Of 389 Enterococcus isolates, 8 fecal and 3 produce isolates were resistant to vancomycin and teicoplanin; all harbored vanA gene...
March 27, 2017: Foodborne Pathogens and Disease
https://www.readbyqxmd.com/read/28346347/biosynthesis-of-%C3%AE-glucosidase-inhibitors-by-a-newly-isolated-bacterium-paenibacillus-sp-tku042-and-its-effect-on-reducing-plasma-glucose-in-a-mouse-model
#2
Van Bon Nguyen, Anh Dzung Nguyen, Yao-Haur Kuo, San-Lang Wang
Paenibacillus sp. TKU042, a bacterium isolated from Taiwanese soil, produced α-glucosidase inhibitors (aGIs) in the culture supernatant when commercial nutrient broth (NB) was used as the medium for fermentation. The supernatant of fermented NB (FNB) showed stronger inhibitory activities than acarbose, a commercial anti-diabetic drug. The IC50 and maximum α-glucosidase inhibitory activities (aGIA) of FNB and acarbose against α-glucosidase were 81 μg/mL, 92% and 1395 μg/mL, 63%, respectively. FNB was found to be strongly thermostable, retaining 95% of its relative activity, even after heating at 100 °C for 30 min...
March 25, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28346234/outstanding-animal-studies-in-allergy-i-from-asthma-to-food-allergy-and-anaphylaxis
#3
Erika Jensen-Jarolim, Isabella Pali-Schöll, Franziska Roth-Walter
PURPOSE OF REVIEW: Animal models published within the past 18 months on asthma, food allergy and anaphylaxis, all conditions of rising public health concern, were reviewed. RECENT FINDINGS: While domestic animals spontaneously develop asthma, food allergy and anaphylaxis, in animal models, divergent sensitization and challenge routes, dosages, intervals and antigens are used to induce asthmatic, food allergic or anaphylactic phenotypes. This must be considered in the interpretation of results...
March 24, 2017: Current Opinion in Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28345998/pharmacokinetics-of-a-single-dose-of-voriconazole-administered-orally-with-and-without-food-to-red-tailed-hawks-buteo-jamaicensus
#4
Ruth A Parsley, Lisa A Tell, Ronette Gehring
OBJECTIVE To determine the pharmacokinetics of voriconazole administered PO with or without food to red-tailed hawks (Buteo jamaicensus) and whether any observed variability could be explained by measured covariates to inform dose adjustments. ANIMALS 7 adult red-tailed hawks. PROCEDURES In a crossover study design, hawks were randomly assigned to first receive voriconazole (15 mg/kg, PO) injected into a dead mouse (n = 3; fed birds) or without food (4; unfed birds). Sixteen days later, treatments were reversed...
April 2017: American Journal of Veterinary Research
https://www.readbyqxmd.com/read/28345027/pre-clinical-assessment-of-c134-a-chimeric-oncolytic-herpes-simplex-virus-in-mice-and-non-human-primates
#5
Kevin A Cassady, David F Bauer, Justin Roth, Melissa R Chambers, Trent Shoeb, Jennifer Coleman, Mark Prichard, G Yancey Gillespie, James M Markert
Oncolytic herpes simplex virus (oHSV) type I constructs are investigational anti-neoplastic agents for a variety of malignancies, including malignant glioma. Clinical trials to date have supported the safety of these agents even when directly administered in the CNS. Traditional pre-clinical US Food and Drug Administration (FDA) toxicity studies for these agents have included the use of two species, generally including murine and primate studies. Recently, the FDA has decreased its requirement of non-human primates as an animal model for ethical reasons, especially for established viral systems where there are good alternative model systems...
June 16, 2017: Molecular Therapy Oncolytics
https://www.readbyqxmd.com/read/28344403/toxoplasma-gondii-infection-in-meat-animals-from-africa-systematic-review-and-meta-analysis-of-sero-epidemiological-studies
#6
Aretas Babatoundé Nounnagnon Tonouhewa, Yao Akpo, Philippe Sessou, Camus Adoligbe, Eric Yessinou, Yaovi Gildas Hounmanou, Marc Napoléon Assogba, Issaka Youssao, Souaïbou Farougou
AIM: Toxoplasma gondii is an ubiquitous apicomplexan parasite which causes toxoplasmosis in humans and animals. Felids especially cats are definitive hosts and almost all warm-blooded mammals, including livestock and human can serve as intermediate hosts. Food animals can be reservoirs for T. gondii and act as one of the sources for parasite transmission to humans. The objective of this study is to collect serological data on the prevalence of anti-T. gondii antibody, and risk factors for certain food animals from Africa to provide a quantitative estimate of T...
February 2017: Veterinary World
https://www.readbyqxmd.com/read/28344067/upregulation-of-orexin-hypocretin-expression-in-aged-rats-effects-on-feeding-latency-and-neurotransmission-in-the-insular-cortex
#7
Janel M Hagar, Victoria A Macht, Steven P Wilson, James R Fadel
Aging is associated with changes in numerous homeostatic functions, such as food intake, that are thought to be mediated by the hypothalamus. Orexin/hypocretin neurons of the hypothalamus regulate several physiological functions, including feeding, sleep and wakefulness. Evidence from both clinical and animal studies supports the notion that aging is associated with loss or dysregulation of the orexin system. Here, we used virus-mediated gene transfer to manipulate expression of orexin peptides in young and aged rats and examined behavioral and neurochemical correlates of food intake in these animals...
March 23, 2017: Neuroscience
https://www.readbyqxmd.com/read/28342988/an-anti-inflammatory-dietary-intervention-to-reduce-breast-cancer-recurrence-risk-study-design-and-baseline-data
#8
Amelie G Ramirez, Dorothy Long Parma, Edgar Muñoz, Kristin D Mendoza, Crystel Harb, Alan E C Holden, Michael Wargovich
U.S. breast cancer survivors (BCSs) are expected to increase to 4 million in the next 5-10years. Cancer recurrence risk is highest among obese survivors. Inflammatory (Pro-I) biomarkers including C-reactive protein (CRP), Interleukins -3, -6, and -8 (IL-3, IL-6, IL-8), and Tumor Necrosis Factor (TNF)-α have been associated with cancer recurrence risk. Nutritional interventions aimed at reducing inflammation (INF) may contribute to reduced cancer recurrence risk, but studies have been limited to animal models...
March 22, 2017: Contemporary Clinical Trials
https://www.readbyqxmd.com/read/28342283/effects-of-predatory-ants-within-and-across-ecosystems-in-bromeliad-food-webs
#9
Ana Z Gonçalves, Diane S Srivastava, Paulo S Oliveira, Gustavo Q Romero
Predation is one of the most fundamental ecological processes affecting biotic communities. Terrestrial predators that live at ecosystem boundaries may alter the diversity of terrestrial organisms, but they may also have cross-ecosystem cascading effects when they feed on organisms with complex life cycles (i.e., organisms that shift from aquatic juvenile stages to terrestrial adult stages) or inhibit female oviposition in the aquatic environment. The predatory ant Odontomachus hastatus establishes its colonies among roots of Vriesea procera, an epiphytic bromeliad species with water-filled tanks that shelters many terrestrial and aquatic organisms...
March 25, 2017: Journal of Animal Ecology
https://www.readbyqxmd.com/read/28342281/incorporating-in-situ-habitat-patchiness-in-site-selection-models-reveals-that-site-fidelity-is-not-always-a-consequence-of-animal-choice
#10
Aline S Martinez, Eduardo V Queiroz, Mitch Bryson, Maria Byrne, Ross A Coleman
1.Understanding site fidelity is important in animal ecology, but evidence is lacking that this behaviour is due to an animal choosing a specific location. To discern site selection behaviour it is necessary to consider the spatial distribution of habitats that animals can occupy within a landscape. Tracking animals and defining clear habitat boundaries, however, is often difficult. 2.We use in situ habitat distribution data and animal movement simulations to investigate behavioural choice in site fidelity patterns...
March 25, 2017: Journal of Animal Ecology
https://www.readbyqxmd.com/read/28342160/dogs-demonstrate-perspective-taking-based-on-geometrical-gaze-following-in-a-guesser-knower-task
#11
Amélie Catala, Britta Mang, Lisa Wallis, Ludwig Huber
Currently, there is still no consensus about whether animals can ascribe mental states (Theory of Mind) to themselves and others. Showing animals can respond to cues that indicate whether another has visual access to a target or not, and that they are able to use this information as a basis for whom to rely on as an informant, is an important step forward in this direction. Domestic dogs (Canis familiaris) with human informants are an ideal model, because they show high sensitivity towards human eye contact, they have proven able to assess the attentional state of humans in food-stealing or food-begging contexts, and they follow human gaze behind a barrier when searching for food...
March 24, 2017: Animal Cognition
https://www.readbyqxmd.com/read/28342156/diet-change-after-sleeve-gastrectomy-is-more-effective-for-weight-loss-than-surgery-only
#12
Joana Rossell, Marta González, Núria Mestres, Eva Pardina, David Ricart-Jané, Julia Peinado-Onsurbe, Juan Antonio Baena-Fustegueras
BACKGROUND: Bariatric surgery with or without diet change has become one of the most effective treatments for obesity. The objective of this study was to observe the effects of vertical sleeve gastrectomy (VSG) and diet change in Sprague-Dawley rats on both body and tissue weights. METHODS: Eighteen rats were fed with a standard chow diet (SCD) (C group), and 36 rats were fed with a high-fat diet (HFD) (diet-induced obesity (DIO) group). After 8 weeks, the animals underwent VSG, sham surgery or no surgery (NS)...
March 24, 2017: Obesity Surgery
https://www.readbyqxmd.com/read/28342089/voluntary-induction-and-maintenance-of-alcohol-dependence-in-rats-using-alcohol-vapor-self-administration
#13
Giordano de Guglielmo, Marsida Kallupi, Maury D Cole, Olivier George
RATIONALE: A major issue in the addiction field is the limited number of animal models of the voluntary induction and maintenance of alcohol dependence in outbred rats. OBJECTIVES: To address this issue, we developed a novel apparatus that vaporizes alcohol for 2-10 min after an active nosepoke response. METHODS: Male Wistar rats were allowed to self-administer alcohol vapor for 8 h/day every other day for 24 sessions (escalated) or eight sessions (non-escalated)...
March 24, 2017: Psychopharmacology
https://www.readbyqxmd.com/read/28341247/toxicological-evaluation-of-oviductus-ranae-acute-sub-acute-and-genotoxicity-studies-in-mice-and-rats
#14
Yang Zhang, Kun Zhu, Hao Cui, Yang Liu, Ye-Fang Lu, Hong-Wei Pan, He-Peng Zhao, Ling Qi, Xiu-Dong Yang, Hong-Li Zhou
ETHNOPHARMACOLOGICAL RELEVANCE: Oviductus ranae (OR) is a traditional animal-based Chinese medicine, which has been listed in the Chinese Pharmacopoeia since 1985 edition. Although its medicinal application has been widely acknowleged, there is little available information on its potential toxicity. AIM OF THE STUDY: The aim of this study was to investigate the acute, sub-acute, and genetic toxicities of OR. MATERIALS AND METHODS: In acute toxicity evaluation, OR was administered orally to mice at doses of 2...
March 21, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28340740/quantification-of-polybrominated-diphenyl-ethers-pbdes-in-food-a-review
#15
REVIEW
Wojciech Jerzy Pietroń, Paweł Małagocki
The polybrominated diphenyl ethers (PBDEs), a class of brominated flame retardants (BFRs), are food contaminants of animal origin. Interest in food matrices analysis is growing due to the toxicity of PBDEs and European Commission (EC) recommendation (118/2014/EU). Here we review papers concerning methods of PBDEs analysis while focusing on extraction, clean up, chromatographic separation and detection techniques. The emphasis is put on EC recommendation, the congeners and the efficiency of different detection systems...
May 15, 2017: Talanta
https://www.readbyqxmd.com/read/28340727/a-quantitative-approach-for-cd-cu-fe-and-mn-through-laser-ablation-imaging-for-evaluating-the-translocation-and-accumulation-of-metals-in-sunflower-seeds
#16
Gustavo de S Pessôa, Cícero A Lopes Júnior, Katherine C Madrid, Marco A Z Arruda
The uptake and accumulation of Cd in sunflower seeds represents an important pathway for imputing potentially toxic metals into human and animal food. In this way, bioimaging of Cd and micronutrients (Cu, Fe and Mn) in the seeds of sunflower grown in soil contaminated with Cd are performed. For this task, laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) is used in quantitative approach, considering four groups: precursor, control, Cd-low (50mg) and Cd-high (700mg). For attaining our proposals, ICP-MS (nebulizer and auxiliary flow rates and radiofrequency power) and LA (laser intensity, frequency and spot size) parameters were optimized, and the analytical signal improved to 197%, 217%, 232%, and 283%, for (57)Fe, (112)Cd, (55)Mn and (63)Cu, respectively...
May 15, 2017: Talanta
https://www.readbyqxmd.com/read/28340716/high-sensitive-detection-of-penicillin-g-residues-in-milk-by-surface-enhanced-raman-scattering
#17
Yongliang Chen, Xiuling Li, Ming Yang, Libin Yang, Xiaoxia Han, Xin Jiang, Bing Zhao
The antibiotic residue in animal source foods (milk, meat, etc.) is threatening people's health due to its abusing in livestock breeding more and more seriously. In this study, a simple and sensitive SERS method coupled with a two-step pretreatment process of sample was proposed for the residue detection of penicillin G (PENG) in real milk sample. It can be found that the two-step pretreatment process of sample is an essential procedure for the successful detection of PENG residue in milk, which can effectively avoid interference from other components in the sample and achieve the trace-level detection of PENG residue by SERS...
May 15, 2017: Talanta
https://www.readbyqxmd.com/read/28340428/vaccination-as-a-control-strategy-against-salmonella-infection-in-pigs-a-systematic-review-and-meta-analysis-of-the-literature
#18
REVIEW
M L de la Cruz, I Conrado, A Nault, A Perez, L Dominguez, J Alvarez
Consumption or handling of improperly processed or cooked pork is considered one of the top sources for foodborne salmonellosis, a common cause of intestinal disease worldwide. Asymptomatic carrier pigs may contaminate pork at slaughtering; therefore, pre-harvest reduction of Salmonella load can contribute to reduce public health risk. Multiple studies have evaluated the impact of vaccination on controlling Salmonella in swine farms, but results are highly variable due to the heterogeneity in vaccines and vaccination protocols...
March 11, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28340320/protective-effects-of-alpha-lipoic-acid-on-methotrexate-induced-oxidative-lung-injury-in-rats
#19
Huseyin Arpag, Mehmet Gül, Yusuf Aydemir, Nurhan Atilla, Birgül Yiğitcan, Tugrul Cakir, Cemal Polat, Özer Þehirli, Muhammet Sayan
OBJECTIVE: Oxidative stress is one of the major causes of methotrexate induced lung injury (MILI). Alpha-lipoic acid (ALA), which occurs naturally in human food, has antioxidative and anti-inflammatory activities. The aim of this study was to research the potential protective role of ALA on MILI in rats. METHODS: Twenty one rats were randomly subdivided into three groups: control (group I), methotrexate (MTX) treated (group II), and MTX+ALA treated (group III). Lung injury was performed with a single dose of MTX (20 mg/kg) to groups 2 and 3...
March 24, 2017: Journal of Investigative Surgery: the Official Journal of the Academy of Surgical Research
https://www.readbyqxmd.com/read/28339990/detecting-thresholds-for-bitter-umami-and-sweet-tastants-in-broiler-chicken-using-a-2-choice-test-method
#20
Shira L Cheled-Shoval, Naama Reicher, Masha Y Niv, Zehava Uni
The sense of taste has a key role in nutrient sensing and food intake in animals. A standardized and simple method for determination of tastant-detection thresholds is required for chemosensory research in poultry. We established a 24-h, 2-alternative, forced-choice solution-consumption method and applied it to measure detection thresholds for 3 G-protein-coupled receptor-mediated taste modalities-bitter, sweet, and umami-in chicken. Four parameters were used to determine a significant response: 1) tastant-solution consumption; 2) water (tasteless) consumption; 3) total consumption (tastant and water together); 4) ratio of tastant consumption to total consumption...
March 2, 2017: Poultry Science
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