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https://www.readbyqxmd.com/read/28345991/correlation-between-serum-homocysteine-concentration-and-severity-of-mitral-valve-disease-in-dogs
#1
Chang-Min Lee, Da-Min Jeong, Min-Hee Kang, Seung-Gon Kim, Jae-Ik Han, Hee-Myung Park
OBJECTIVE To measure serum homocysteine concentrations in dogs with myxomatous mitral valve disease (MMVD) and identify any association between this variable and stage of MMVD. ANIMALS 53 client-owned dogs with MMVD and 10 healthy control Beagles. PROCEDURES Dogs with MMVD were allocated to 3 groups in accordance with the staging system for chronic valvular heart disease in dogs and cats of the American College of Veterinary Internal Medicine. Blood samples were collected from all dogs, and serum homocysteine and cardiac troponin 1 concentrations were measured by enzyme immunoassay and chemiluminescence immunoassay, respectively...
April 2017: American Journal of Veterinary Research
https://www.readbyqxmd.com/read/28344403/toxoplasma-gondii-infection-in-meat-animals-from-africa-systematic-review-and-meta-analysis-of-sero-epidemiological-studies
#2
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/28344191/transposition-of-insertion-sequence-is256bsu1-in-bacillus-subtilis-168-is-strictly-dependent-on-reca
#3
Motohiro Akashi, Shota Harada, Syunsuke Moki, Yuki Okouji, Kiwamu Takahashi, Shigeki Kada, Keigo Yamagami, Yasuhiko Sekine, Satoru Watanabe, Taku Chibazakura, Hirofumi Yoshikawa
We developed an insertion sequence transposition detection system called the "jumping cat assay" and applied it to the Bacillus subtilis chromosome using IS256Bsu1 derived from B. subtilis natto. The high frequency of transposition enabled us to explore host factors; combining the assay and genetic analyses revealed that recA is essential for the transposition of IS256Bsu1. Detailed analyses using various domain mutants of recA demonstrated that this essentiality is not related to the function of recA in homologous recombination...
March 24, 2017: Genes & Genetic Systems
https://www.readbyqxmd.com/read/28344000/long-term-adult-feline-liver-organoid-cultures-for-disease-modeling-of%C3%A2-hepatic-steatosis
#4
Hedwig S Kruitwagen, Loes A Oosterhoff, Ingrid G W H Vernooij, Ingrid M Schrall, Monique E van Wolferen, Farah Bannink, Camille Roesch, Lisa van Uden, Martijn R Molenaar, J Bernd Helms, Guy C M Grinwis, Monique M A Verstegen, Luc J W van der Laan, Meritxell Huch, Niels Geijsen, Robert G Vries, Hans Clevers, Jan Rothuizen, Baukje A Schotanus, Louis C Penning, Bart Spee
Hepatic steatosis is a highly prevalent liver disease, yet research is hampered by the lack of tractable cellular and animal models. Steatosis also occurs in cats, where it can cause severe hepatic failure. Previous studies demonstrate the potential of liver organoids for modeling genetic diseases. To examine the possibility of using organoids to model steatosis, we established a long-term feline liver organoid culture with adult liver stem cell characteristics and differentiation potential toward hepatocyte-like cells...
March 10, 2017: Stem Cell Reports
https://www.readbyqxmd.com/read/28343989/social-interaction-food-scent-or-toys-a-formal-assessment-of-domestic-pet-and-shelter-cat-felis-silvestris-catus-preferences
#5
Kristyn R Vitale Shreve, Lindsay R Mehrkam, Monique A R Udell
Domestic cats (Felis silvestris catus) engage in a variety of relationships with humans and can be conditioned to engage in numerous behaviors using Pavlovian and operant methods Increasingly cat cognition research is providing evidence of their complex socio-cognitive and problem solving abilities. Nonetheless, it is still common belief that cats are not especially sociable or trainable. This disconnect may be due, in part, to a lack of knowledge of what stimuli cats prefer, and thus may be most motivated to work for...
March 23, 2017: Behavioural Processes
https://www.readbyqxmd.com/read/28343986/the-hemodynamic-signal-as-a-first-order-low-pass-temporal-filter-evidence-and-implications-for-neuroimaging-studies
#6
Antoine Sauvage, Guillaume Hubert, Jonathan Touboul, Jérôme Ribot
Neuronal activation triggers local changes in blood flow and hemoglobin oxygenation. These hemodynamic signals can be recorded through functional magnetic resonance imaging or intrinsic optical imaging, and allows inferring neural activity in response to stimuli. These techniques are widely used to uncover functional brain architectures. However, their accuracy suffers from distortions inherent to hemodynamic responses and noise. The analysis of these signals currently relies on models of impulse hemodynamic responses to brief stimuli...
March 23, 2017: NeuroImage
https://www.readbyqxmd.com/read/28343954/a-new-whole-mitochondrial-genome-qpcr-wmg-qpcr-with-sybr-green-%C3%A2-to-identify-phlebotomine-sand-fly-blood-meals
#7
Ana Caroline Moura Rodrigues, Rafaela Damasceno Magalhães, Kalil Andrade Mubarac Romcy, Jeferson Lucas Sousa Freitas, Ana Carolina Fonseca Lindoso Melo, Fernanda Cristina Macedo Rodon, Claudia Maria Leal Bevilaqua, Luciana Magalhães Melo
Phlebotomine sand flies are blood-feeding insects of marked medical and veterinary significance. Investigations on the biology of these insects hold great importance for both ecological and epidemiological purposes. The present work describes a new approach for real-time PCR (qPCR) with SYBR Green(®), named WMG-qPCR, to identify phlebotomine blood meals. The novelty of the assay was to design primers based on the Whole Mitochondrial Genome (WMG) of the potential hosts (human, dog, cat, brown rat and chicken) aiming to amplify through qPCR the regions of mitochondrial DNA (mtDNA) which are less conserved among all species...
March 9, 2017: Veterinary Parasitology
https://www.readbyqxmd.com/read/28343753/limnothrix-sp-ko05-a-newly-characterized-cyanobacterial-biosorbent-for-cadmium-removal-the-enzymatic-and-non-enzymatic-antioxidant-reactions-to-cadmium-toxicity
#8
Omid Haghighi, Shahab Shahryari, Mojgan Ebadi, Sima Modiri, Hossein Shahbani Zahiri, Hadi Maleki, Kambiz Akbari Noghabi
In this study, we isolated five indigenous cyanobacterial strains from different aqueous environments, with heavy metals contamination, in East Azerbaijan Province (northwest portion of Iran). A strain was identified by morphological and 16S rRNA sequence analysis as Limnothrix sp. KO05 and selected for further studies as having the greatest potential for cadmium uptake. Scanning electron microscopy (SEM) demonstrated cyanobacterium Limnothrix sp. KO05 forms filamentous structures and is straight or curved to some extent...
March 18, 2017: Environmental Toxicology and Pharmacology
https://www.readbyqxmd.com/read/28343349/modernizing-quality-of-life-assessment-development-of-a-multidimensional-computerized-adaptive-questionnaire-for-patients-with-schizophrenia
#9
Pierre Michel, Karine Baumstarck, Christophe Lancon, Badih Ghattas, Anderson Loundou, Pascal Auquier, Laurent Boyer
OBJECTIVE: Quality of life (QoL) is still assessed using paper-based and fixed-length questionnaires, which is one reason why QoL measurements have not been routinely implemented in clinical practice. Providing new QoL measures that combine computer technology with modern measurement theory may enhance their clinical use. The aim of this study was to develop a QoL multidimensional computerized adaptive test (MCAT), the SQoL-MCAT, from the fixed-length SQoL questionnaire for patients with schizophrenia...
March 25, 2017: Quality of Life Research
https://www.readbyqxmd.com/read/28343338/expression-of-typical-osteoclast-markers-by-pbmcs-after-peg-induced-fusion-as-a-model-for-studying-osteoclast-differentiation
#10
Luz M Castillo, Carlos A Guerrero, Orlando Acosta
Bone is a metabolically active organ subjected to continuous remodeling process that involves resorption by osteoclast and subsequent formation by osteoblasts. Osteoclast involvement in this physiological event is regulated by macrophage colony-stimulating factor (M-CSF) and receptor activator of nuclear factor κB ligand (RANKL). Fusion of mono-nuclear pre-osteoclasts is a critical event for osteoclast differentiation and for bone resorption. Here we show that PBMCs can be successfully fused with polyethylenglicol (PEG) in order to generated viable osteoclast-like cells that exhibit tartrate-resistant acid phosphatase (TRAP) and bone resorptive activities...
March 25, 2017: Journal of Molecular Histology
https://www.readbyqxmd.com/read/28343007/bioconcentration-and-multi-biomarkers-of-organic-uv-filters-bm-dbm-and-od-paba-in-crucian-carp
#11
Binni Ma, Guanghua Lu, Jianchao Liu, Zhenhua Yan, Haohan Yang, Ting Pan
Organic UV filters (OUV-Fs) are increasingly used in sunscreens and personal care products. In the present work, the bioconcentration and multi-biomarker effects of butyl methoxydibenzoylmethane (BM-DBM) and ethylhexyl dimethyl p-aminobenzoate (OD-PABA) were investigated in crucian carp (Carassius auratus). The fish were exposed to various concentrations of BM-DBM (3.88, 35.61, 181.85 and 337.15μg/L), OD-PABA (4.66, 53.83, 264.22 and 459.32μg/L) and their mixture (2.31+2.79, 23.69+26.18, 97.37+134.81 and 193...
March 23, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28342982/mastocarcinoma-therapy-synergistically-promoted-by-lysosome-dependent-apoptosis-specifically-evoked-by-5-fu-nanogel-system-with-passive-targeting-and-ph-activatable-dual-function
#12
Xiandi Zhu, Yn Sun, Di Chen, Jingfeng Li, Xia Dong, Jie Wang, Huaiwen Chen, Ying Wang, Fulei Zhang, Jinaxin Dai, Rogério P Pirraco, Shangjing Guo, Alexandra P Marques, Rui L Reis, Wei Li
This manuscript describes a synergistic therapy for mastocarcinoma by pH and temperature dual-sensitive nanogel, and effects of microstructure, composition and properties of nanogel on the cellular response mechanism. The extracellular internalization of nanogels was obviously enhanced, due to the passive targeting function at T>VPTT. Interestingly, the increased cytotoxicity was further synergistically enhanced by an unexpected apoptosis as evoked by the 5-fluorouracil loaded nanogel (FLNG). The systemically evaluation of the effectors generated from different sub-cellular organelles including endosome, lysosome, autophagosome confirmed that it was a lysomal dependent apoptosis...
March 22, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/28342430/exposure-to-a-magnetic-field-or-laser-radiation-ameliorates-effects-of-pb-and-cd-on-physiology-and-growth-of-young-wheat-seedlings
#13
Yi-Ping Chen, Dong Chen, Qiang Liu
Lead (Pb) and cadmium (Cd) contamination of soils pose significant problems for successful seed germination and establishment. We compared effects of subjecting wheat seeds either to a magnetic field (MF: 0-800 millitesla) or laser radiation (LR: 0-8min at 20mW/mm(2)) on wheat seed germination and on physiology and growth of young seedlings exposed to these two heavy metals as seeds and as 2-day-old seedlings. Intermediate levels of either MF or LR increased germination. In seeds untreated by MF or LR, exposure to Cd and Pb resulted in: significant increases in the concentrations of malondialdehyde ([MDA]) and superoxide anion radical ([O2(-)]), and in the conductivity of electrolyte leakage (CEL); significant decreases in catalase (CAT), superoxide dismutase (SOD), and glutathione reductase (GR) activity; a significant decrease in glutathione concentration ([GSH]); and a significant decrease in shoot biomass relative to seeds exposed to these heavy metals following MF or LR treatments...
March 18, 2017: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/28341863/the-feature-specific-propagation-of-orientation-and-direction-adaptation-from-areas-17-to-21a-in-cats
#14
Zhong Li, Jianjun Meng, Hongjian Li, Anqi Jin, Qijun Tang, Jianbin Zhu, Hongbo Yu
Adaptation plays a key role in visual information processing, and investigations on the adaptation across different visual regions will be helpful to understand how information is processed dynamically along the visual streams. Recent studies have found the enhanced adaptation effects in the early visual system (from LGN to V1) and the dorsal stream (from V1 to MT). However, it remains unclear how adaptation effect propagates along the form/orientation stream in the visual system. In this study, we compared the orientation and direction adaptation evoked by drifting gratings and stationary flashing gratings, as well as moving random dots, in areas 17 and 21a simultaneously of cats...
March 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28341722/sciatic-and-femoral-nerve-blockade-using-bupivacaine-alone-or-in-combination-with-dexmedetomidine-or-buprenorphine-in-cats
#15
M C Evangelista, G M Doodnaught, D T Fantoni, P V M Steagall
The aim of this study was to determine the onset and offset of antinociception after sciatic (ScN) and femoral (FN) nerve blocks. Six healthy adult cats (4.8±1.3years; 4.3±0.4 kg) were included in a randomised, crossover, blinded and controlled study. Following sedation with dexmedetomidine (25 µg/kg, intramuscular), each ScN and FN injection was performed using 0.1 ml/kg of saline (CONTROL), bupivacaine (0.46 per cent, 0.46 mg/kg; BUPI), bupivacaine and dexmedetomidine (1 µg/kg; BUPI-DEX) or bupivacaine and buprenorphine (2...
March 24, 2017: Veterinary Record
https://www.readbyqxmd.com/read/28341180/morphological-and-morphometrical-maturation-of-ventral-cochlear-nucleus-in-human-foetus
#16
Sabita Mishra, T S Roy, Shashi Wadhwa
Auditory impulses perceived by the hair cells of the organ of corti are relayed in the cochlear nucleus, the first relay station in the brainstem, by the cochlear nerve. The human foetus is well known to respond to sound during the last trimester of gestation. On the contrary, studies conducted in rat, cat and mouse have shown that these mammals have an immature auditory system at the time of birth. There are very few reports available regarding the morphological and functional maturation of the cochlear nucleus in human...
March 21, 2017: Journal of Chemical Neuroanatomy
https://www.readbyqxmd.com/read/28341145/facial-correlates-of-emotional-behaviour-in-the-domestic-cat-felis-catus
#17
Valerie Bennett, Nadine Gourkow, Daniel S Mills
Leyhausen's (1979) work on cat behaviour and facial expressions associated with offensive and defensive behaviour is widely embraced as the standard for interpretation of agonistic behaviour in this species. However, it is a largely anecdotal description that can be easily misunderstood. Recently a facial action coding system has been developed for cats (CatFACS), similar to that used for objectively coding human facial expressions. This study reports on the use of this system to describe the relationship between behaviour and facial expressions of cats in confinement contexts without and with human interaction, in order to generate hypotheses about the relationship between these expressions and underlying emotional state...
March 21, 2017: Behavioural Processes
https://www.readbyqxmd.com/read/28341144/a-subjective-domestic-cat-felis-silvestris-catus-temperament-assessment-results-in-six-independent-dimensions
#18
Daniel Ha, James Ha
The study of personality or temperament is well developed in many species, but in domestic cats (Felis silvestris catus) it has lagged behind. We applied one common methodology, subjective surveys, performed by their owners, to investigate the dimensions of cat temperament. To do this, we developed an eighteen question survey covering common behavioral traits of cats, and had the evaluators rank their cat on a seven point Likert scale for trait. The responses were analyzed with factor analysis, and resulted in six significant dimensions of temperament across the 251 surveys...
March 21, 2017: Behavioural Processes
https://www.readbyqxmd.com/read/28340519/barrington-s-nucleus-neuroanatomic-landscape-of-the-mouse-pontine-micturition-center
#19
Anne M J Verstegen, Veronique Vanderhorst, Paul A Gray, Mark L Zeidel, Joel C Geerling
Barrington's nucleus (Bar) is thought to contain neurons that trigger voiding and thereby function as the "pontine micturition center." Lacking detailed information on this region in mice, we examined gene and protein markers to characterize Bar and the neurons surrounding it. Like rats and cats, mice have an ovoid core of medium-sized Bar neurons located medial to the locus coeruleus (LC). Bar neurons express a GFP reporter for Vglut2, develop from a Math1/Atoh1 lineage, and exhibit immunoreactivity for NeuN...
March 24, 2017: Journal of Comparative Neurology
https://www.readbyqxmd.com/read/28340295/response-of-catalase-of-the-mouse-primary-hepatocytes-to-sodium-dodecylbenzene-sulfonate-and-the-underlying-molecular-mechanisms
#20
Jing Wang, Jiaxi Wang, Lu Zhang, Rutao Liu, Wansong Zong
This study investigated the adverse effects of sodium dodecylbenzene sulfonates (SDBS) on the mouse primary hepatocytes by conducting cell viability, intracellular oxidative stress level and catalase (CAT) activity assays. It was shown that SDBS altered CAT activities, triggered oxidative stress, and thus exhibited cytotoxicity to the hepatocytes. Both the stimulation of intracellular CAT production and the inhibition of molecular CAT activity contributed to intracellular CAT activity change. Molecular mechanisms underlying CAT activity inhibition and structural changes were explored by isothermal titration calorimetry, multi-spectroscopy and molecular docking studies...
March 24, 2017: Journal of Agricultural and Food Chemistry
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