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https://www.readbyqxmd.com/read/28817121/meganuclease-assisted-generation-of-stable-transgenics-in-the-sea-anemone-nematostella-vectensis
#1
Eduard Renfer, Ulrich Technau
The sea anemone Nematostella vectensis is a model system used by a rapidly growing research community for comparative genomics, developmental biology and ecology. Here, we describe a microinjection procedure for creating stable transgenic lines in Nematostella based on meganuclease (I-SceI)-assisted integration of a transgenic cassette into the genome. The procedure describes the preparation of the reagents, microinjection of the transgenesis vector and the husbandry of transgenic animals. The microinjection setup differs from those of previously published protocols by the use of a holding capillary mounted on an inverted fluorescence microscope...
September 2017: Nature Protocols
https://www.readbyqxmd.com/read/28816642/proteomic-analysis-of-the-human-olfactory-bulb
#2
Manjunath Dammalli, Gourav Dey, Anil K Madugundu, Manish Kumar, Benvil Rodrigues, Harsha Gowda, Bychapur Gowrishankar Siddaiah, Anita Mahadevan, Susarla Krishna Shankar, Thottethodi Subrahmanya Keshava Prasad
The importance of olfaction to human health and disease is often underappreciated. Olfactory dysfunction has been reported in association with a host of common complex diseases, including neurological diseases such as Alzheimer's disease and Parkinson's disease. For health, olfaction or the sense of smell is also important for most mammals, for optimal engagement with their environment. Indeed, animals have developed sophisticated olfactory systems to detect and interpret the rich information presented to them to assist in day-to-day activities such as locating food sources, differentiating food from poisons, identifying mates, promoting reproduction, avoiding predators, and averting death...
August 2017: Omics: a Journal of Integrative Biology
https://www.readbyqxmd.com/read/28814607/early-career-researchers-an-interview-with-graham-scott
#3
(no author information available yet)
Graham Scott is an Assistant Professor at McMaster University, Canada, where he studies the integrative biology of how animals cope in challenging environments. He received his Bachelor's degree in biology before completing a Master's degree with Trish Schulte and then a PhD in 2009 with Bill Milsom at the University of British Columbia, Canada. He moved on to continue his postdoc training with Ian Johnston at the University of St Andrews, UK. Scott received the Animal Section Presidents' Medal from the Society for Experimental Biology in 2012, he was an author on the Journal of Zoology Paper of the Year in 2015 and he was awarded the Robert G...
August 15, 2017: Journal of Experimental Biology
https://www.readbyqxmd.com/read/28809656/animal-assisted-therapies-and-dementia-a-systematic-mapping-review-using-the-lived-environment-life-quality-lelq-model
#4
Wendy Wood, Beth Fields, Michelle Rose, Merinda McLure
OBJECTIVE: The authors mapped the literature on animal-assisted therapies (AATs) and institutionalized adults with dementia onto the Lived Environment Life Quality (LELQ) Model as a guide for future services and research. METHOD: Refereed literature addressing AATs and institutionalized people with dementia was comprehensively gathered, described, categorized, and synthesized in this systematic mapping review. RESULTS: From 1,342 screened records, the authors included 10 research articles that incorporated dogs in therapy for institutionalized adults with dementia...
September 2017: American Journal of Occupational Therapy: Official Publication of the American Occupational Therapy Association
https://www.readbyqxmd.com/read/28808954/heavy-metal-pollutants-in-selected-organs-of-african-giant-rats-from-three-agro-ecological-zones-of-nigeria-evidence-for-their-role-as-an-environmental-specimen-bank
#5
Ifukibot Levi Usende, Benjamin O Emikpe, James Olukayode Olopade
An assessment of the concentration of heavy metals in the liver, brain, kidney, bone, and lungs of African giant rats (AGRs) from three agro-ecological zones of Nigeria having different industrial activities was carried out using atomic absorption spectrophotometer. Twenty adult AGRs from cities in mangrove/freshwater swamp, rainforest, and woodland/tall grass savanna agro-ecological zones of Nigeria were used for this study. AGRs were euthanized, carefully dissected, and the brains, liver, lungs, bone, and kidneys were harvested, digested, and analyzed for concentrations of vanadium (V), lead (Pb), cadmium (Cd), zinc (Zn), selenium (Se), copper (Cu), and iron (Fe)...
August 14, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28805136/the-ovine-model-for-meniscus-tissue-engineering-considerations-of-anatomy-function-implantation-and-evaluation
#6
Andrzej Brzezinski, Salim A Ghodbane, Jay M Patel, Barbara A Perry, Charles J Gatt, Michael G Dunn
Meniscus injuries represent one of the most-common intra-articular knee injuries. The current treatment options include meniscectomy and allograft transplantation, both with poor long-term outcomes. Therefore, there is a need for regenerative techniques to restore meniscal function. In order to pre-clinically test scaffolds for meniscus replacement, large-animal models need to be established and standardized. This review establishes the anatomical and compositional similarities between the human and sheep menisci and provides guidance for implantation and evaluation of such devices...
August 12, 2017: Tissue Engineering. Part C, Methods
https://www.readbyqxmd.com/read/28802703/identification-and-characterization-of-clostridium-botulinum-group-iii-field-strains-by-matrix-assisted-laser-desorption-ionization-time-of-flight-mass-spectrometry-maldi-tof-ms
#7
Luca Bano, Ilenia Drigo, Elena Tonon, Simone Pascoletti, Cinzia Puiatti, Fabrizio Anniballi, Bruna Auricchio, Florigio Lista, Cesare Montecucco, Fabrizio Agnoletti
Animal botulism is primarily due to botulinum neurotoxin (BoNT) types C, D or their chimeric variants C/D or D/C, produced by Clostridium botulinum group III, which appears to include the genetically indistinguishable Clostridium haemolyticum and Clostridium novyi. In the present study, we used matrix-assisted laser desorption-ionization time-of-flight mass spectrometry (MALDI TOF MS) to identify and characterize 81 BoNT-producing Clostridia isolated in 47 episodes of animal botulism. The instrument's default database, containing no entries for Clostridium botulinum, permitted reliable identification of 26 strains at the genus level...
August 9, 2017: Anaerobe
https://www.readbyqxmd.com/read/28800500/sb223412-a-neurokinin-3-receptor-selective-antagonist-suppresses-testosterone-secretion-in-male-guinea-pigs
#8
Sho Nakamura, Yoshiko Ito, Koki Yamamoto, Chudai Takahashi, Mingdao Dai, Miyu Tanahashi, Yoshihisa Uenoyama, Hiroko Tsukamura, Shinya Oishi, Kei-Ichiro Maeda, Fuko Matsuda
Guinea pigs are important zoo animals and have been recommended for animal-assisted activities or therapy, however there are problems concerning testosterone inducing aggressive or sexual behaviors in male guinea pigs. Testicular testosterone secretion is regulated by pulsatile gonadotropin releasing hormone (GnRH)/luteinizing hormone (LH) release in mammals. The mechanism generating GnRH/LH pulses is thought to be governed by kisspeptin neurons, which coexpress neurokinin B (NKB) and dynorphin A (Dyn), in the arcuate nucleus (ARC)...
July 31, 2017: Theriogenology
https://www.readbyqxmd.com/read/28798541/animal-assisted-therapies-for-youth-with-or-at-risk-for-mental-health-problems-a-systematic-review
#9
Kimberly Eaton Hoagwood, Mary Acri, Meghan Morrissey, Robin Peth-Pierce
To systematically review experimental evidence about animal-assisted therapies (AAT) for children or adolescents with or at risk for mental health conditions, we reviewed all experimental AAT studies published between 2000-2015, and compared studies by animal type, intervention, and outcomes. METHODS: Studies were included if used therapeutically for children and adolescents (≤21 years) with or at risk for a mental health problem; used random assignment or a waitlist comparison/control group; and included child-specific outcome data...
2017: Applied Developmental Science
https://www.readbyqxmd.com/read/28796602/contrast-enhanced-magnetic-resonance-imaging-of-gastric-emptying-and-motility-in-rats
#10
Kun-Han Lu, Jiayue Cao, Steven Oleson, Terry L Powley, Zhongming Liu
The assessment of gastric emptying and motility in humans and animals typically requires radioactive imaging or invasive measurements. Here, we developed a robust strategy to image and characterize gastric emptying and motility in rats based on contrast-enhanced magnetic resonance imaging (MRI) and computer-assisted image processing. The animals were trained to naturally consume a gadolinium-labeled dietgel while bypassing any need for oral gavage. Following this test meal, the animals were scanned under low-dose anesthesia for high-resolution T1-weighted MRI in 7-Tesla, visualizing the time-varying distribution of the meal with greatly enhanced contrast against non-GI tissues...
August 8, 2017: IEEE Transactions on Bio-medical Engineering
https://www.readbyqxmd.com/read/28793277/o-2-18-f-fluoroethyl-l-tyrosine-18-f-fet-uptake-in-insulinoma-first-results-from-a-xenograft-mouse-model-and-from-human
#11
Alessio Imperiale, Frédéric Boisson, Guillaume Kreutter, Bernard Goichot, Izzie Jacques Namer, Philippe Bachellier, Patrice Laquerriere, Laurence Kessler, Patrice Marchand, David Brasse
INTRODUCTION: Herein we have evaluated the uptake of O-(2-(18)F-fluoroethyl)-l-tyrosine ((18)F-FET) in insulinoma in comparison with those of 6-(18)F-fluoro-3,4-dihydroxy-l-phenylalanine ((18)F-FDOPA) providing first data from both murine xenograft model and one patient with proved endogenous hyperinsulinemic hypoglycemia. METHODS: Dynamic (18)F-FET and carbidopa-assisted (18)F-FDOPA PET were performed on tumor-bearing nude mice after subcutaneous injection of RIN-m5F murine beta cells and on a 30-year-old man with type-1 multiple endocrine neoplasia and hyperinsulinemic hypoglycemia defined by a positive fasting test...
July 12, 2017: Nuclear Medicine and Biology
https://www.readbyqxmd.com/read/28791330/computer-assisted-instruction-before-colonoscopy-is-as-effective-as-nurse-counselling-a-clinical-pilot-trial
#12
Govert Veldhuijzen, Michael Klemt-Kropp, Casper Noomen, Aura A Van Esch, Eric T Tjwa, Joost Drenth
BACKGROUND AND STUDY AIMS:  Better patient education prior to colonoscopy improves adherence to instructions for bowel preparation and leads to cleaner colons. We reasoned that computer assisted instruction (CAI) using video and 3 D animations followed by nurse contact maximizes the effectiveness of nurse counselling, increases proportion of clean colons and improves patient experience. PATIENTS AND METHODS:  Adults referred for colonoscopy in a high-volume endoscopy unit in the Netherlands were included...
August 2017: Endoscopy International Open
https://www.readbyqxmd.com/read/28789591/microwave-assisted-extraction-and-pharmacological-evaluation-of-polysaccharides-from-posidonia-oceanica
#13
Yosra Ben Salem, Amal Abdelhamid, Khaoula Mkadmini Hammi, Didier Le Cerf, Abderrahman Bouraoui, Hatem Majdoub
Microwave-assisted extraction was employed for the isolation of polysaccharides from Posidonia oceanica (PPO). The extracting parameters were optimized adopting response surface methodology. The highest polysaccharide yield (2.55 ± 0.09%), which is in concordance with the predicted value (2.76%), was obtained under the following conditions: extraction time 60 s, liquid-solid ratio of 50:1 (mL/g) and power of 800 W. This polysaccharide, with molecular weight of 524 KDa, characterized by gas chromatography-mass spectrometry showed that PPO was mainly composed of galactose, glucose, and arabinose with molar percentages 25...
August 9, 2017: Bioscience, Biotechnology, and Biochemistry
https://www.readbyqxmd.com/read/28775260/phytoextraction-of-cadmium-contaminated-soil-and-potential-of-regenerated-tobacco-biomass-for-recovery-of-cadmium
#14
Yang Yang, Yichen Ge, Hongyuan Zeng, Xihong Zhou, Liang Peng, Qingru Zeng
The aim of this study was to estimate the influence of regenerated tobacco on the extraction of Cd from two acidic soils as well as to address the problem of how to deal with contaminated leaves following phytoextraction. Results showed that a coppicing tobacco led to a decline in Cd concentration in regenerated leaves and stalks when plants were grown in pots, but increased concentrations in regenerated lower and middle leaves when plants were grown under field conditions. The highest recorded bioconcentration factors in Chaling and Guanxi soil were 37...
August 3, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28768556/estimation-of-the-transmission-dynamics-of-african-swine-fever-virus-within-a-swine-house
#15
J P Nielsen, T S Larsen, T Halasa, L E Christiansen
The spread of African swine fever virus (ASFV) threatens to reach further parts of Europe. In countries with a large swine production, an outbreak of ASF may result in devastating economic consequences for the swine industry. Simulation models can assist decision makers setting up contingency plans. This creates a need for estimation of parameters. This study presents a new analysis of a previously published study. A full likelihood framework is presented including the impact of model assumptions on the estimated transmission parameters...
August 3, 2017: Epidemiology and Infection
https://www.readbyqxmd.com/read/28765033/assessment-of-butorphanol-azaperone-medetomidine-combination-as-anesthesia-for-semen-collection-and-evaluation-of-semen-quality-in-white-tailed-deer-odocoileus-virginianus
#16
S M Kirschner, R Rodenkirch
The aim of this current study was to evaluate the level of anesthesia produced by a combination of butorphanol-azaperone-medetomidine (BAM) for semen collection by electroejaculation on captive white-tailed bucks (Odocoileus virginianus). Ten male white-tailed deer, weighing 68.2-115.9kg, ranging in age from one to four years were randomly selected from housing pens and anesthetized with the BAM drug combination at a dose volume of 2.0mL each. Semen was collected from each animal using a standard cervid electroejaculation protocol while under BAM anesthesia...
July 25, 2017: Animal Reproduction Science
https://www.readbyqxmd.com/read/28763276/outcome-of-laparoscopic-ovariectomy-and-laparoscopic-assisted-ovariohysterectomy-in-dogs-278-cases-2003-2013
#17
Kayla M Corriveau, Michelle A Giuffrida, Philipp D Mayhew, Jeffrey J Runge
OBJECTIVE To compare outcomes for laparoscopic ovariectomy (LapOVE) and laparoscopic-assisted ovariohysterectomy (LapOVH) in dogs. DESIGN Retrospective case series. ANIMALS 278 female dogs. PROCEDURES Medical records of female dogs that underwent laparoscopic sterilization between 2003 and 2013 were reviewed. History, signalment, results of physical examination, results of preoperative diagnostic testing, details of the surgical procedure, durations of anesthesia and surgery, intraoperative and immediate postoperative (ie, during hospitalization) complications, and short- (≤ 14 days after surgery) and long-term (> 14 days after surgery) outcomes were recorded...
August 15, 2017: Journal of the American Veterinary Medical Association
https://www.readbyqxmd.com/read/28760441/retinal-metabolism-a-comparative-look-at-energetics-in-the-retina
#18
REVIEW
Michael W Country
The retina is part of the central nervous system, and shares the characteristically high metabolism of the brain. The high energy demand of the retina is normally matched with a large supply of metabolites. When supply does not equal demand (e.g. if retinal blood flow is impaired), retinal neurons are at risk of excitotoxic cell death and vision is impaired or lost. Understanding the energetic budget of the retina is therefore crucial for understanding the pathology and treatment of retinal disease. In this minireview I give an overview of the energetics of the retina, with a focus on lessons learnt from comparative physiology...
July 29, 2017: Brain Research
https://www.readbyqxmd.com/read/28758506/exposure-to-modern-widespread-environmental-endocrine-disrupting-chemicals-and-their-effect-on-the-reproductive-potential-of-women-an-overview-of-current-epidemiological-evidence
#19
Anetta Karwacka, Dorota Zamkowska, Michał Radwan, Joanna Jurewicz
Growing evidence indicates that exposure to widespread, environmental contaminants called endocrine disruptors (EDCs) negatively affects animal and human reproductive health and has been linked to several diseases including infertility. This review aims to evaluate the impact of environmental exposure to endocrine disrupting chemicals [phthalates, parabens, triclosan, bisphenol A (BPA), organochlorine (PCBs) and perfluorinated (PFCs) compounds] on the reproductive potential among women, by reviewing most recently published literature...
July 31, 2017: Human Fertility: Journal of the British Fertility Society
https://www.readbyqxmd.com/read/28756255/microwave-assisted-solid-phase-extraction-for-separation-preconcentration-sulfamethoxazole-in-wastewater-using-tyre-based-activated-carbon-as-solid-phase-material-prior-to-spectrophotometric-determination
#20
K Mogolodi Dimpe, Anele Mpupa, Philiswa N Nomngongo
This work was chiefly encouraged by the continuous consumption of antibiotics which eventually pose harmful effects on animals and human beings when present in water systems. In this study, the activated carbon (AC) was used as a solid phase material for the removal of sulfamethoxazole (SMX) in wastewater samples. The microwave assisted solid phase extraction (MASPE) as a sample extraction method was employed to better extract SMX in water samples and finally the analysis of SMX was done by the UV-Vis spectrophotometer...
July 22, 2017: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
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