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https://www.readbyqxmd.com/read/29151159/enhanced-catalytic-efficiency-and-enantioselectivity-of-epoxide-hydrolase-from-agrobacterium-radiobacter-ad1-by-iterative-saturation-mutagenesis-for-r-epichlorohydrin-synthesis
#1
Shu-Ping Zou, Yu-Guo Zheng, Qun Wu, Zhi-Cai Wang, Ya-Ping Xue, Zhi-Qiang Liu
Enantioselective hydrolysis of epoxides by epoxide hydrolase (EH) is one of the most attractive approaches for the synthesis of chiral epoxides. So far, attempts to develop an efficient epoxide hydrolase -mediated biotransformation have been limited by either the low activity or insufficient enantioselectivity of epoxide hydrolase. In this study, iterative saturation mutagenesis (ISM) of epoxide hydrolase from Agrobacterium radiobacter AD1 (ArEH) was performed for efficient production of (R)-epichlorohydrin...
November 18, 2017: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/29151140/effects-of-oxygen-availability-on-oxidative-stress-biomarkers-in-the-mediterranean-mussel-mytilus-galloprovincialis
#2
Alessia Giannetto, Maria Maisano, Tiziana Cappello, Sabrina Oliva, Vincenzo Parrino, Antonino Natalotto, Giuseppe De Marco, Salvatore Fasulo
In aquatic environments, hypoxia and oxygen-deficient areas are increasing worldwide. Transitions in oxygen levels can influence the production of reactive oxygen species (ROS), eventually leading to oxidative stress. The transcriptional response of oxidative stress biomarkers was evaluated by qPCR in gill tissue from Mytilus galloprovincialis experimentally subjected to 48-h air exposure followed by 48-h re-oxygenation, as compared to normoxic control mussels. Superoxide dismutases (CuZnsod and Mnsod), catalase (cat), and glutathione S-transferase (gst) were over-expressed early after 8-h air exposure and returned to normoxic levels during re-oxygenation...
November 18, 2017: Marine Biotechnology
https://www.readbyqxmd.com/read/29150929/biomechanical-properties-of-feline-ventral-abdominal-wall-and-celiotomy-closure-techniques
#3
Fernando S Reina Rodriguez, Conor T Buckley, Joshua Milgram, Barbara M Kirby
OBJECTIVE: To compare biomechanical properties and mechanism of failure of 3 regions of ventral abdominal wall in cats by using 2 suture materials, 2 suture bite-to-stitch intervals (SBSI), and full-thickness versus fascia-only closure. STUDY DESIGN: Randomized, cadaveric, ex vivo mechanical testing. SAMPLE POPULATION: 16 adult cat cadavers, 3 samples per cat. METHODS: Three regions of ventral abdominal wall were mechanically tested (N = 48 samples)...
November 18, 2017: Veterinary Surgery: VS
https://www.readbyqxmd.com/read/29150587/a-passion-for-cats-and-people
#4
(no author information available yet)
Sheila Wills has worked extensively but not exclusively with cats. More recently she was appointed director of an organisation that accredits veterinary CPD and awards veterinary qualifications worldwide.
November 18, 2017: Veterinary Record
https://www.readbyqxmd.com/read/29150087/dexmedetomidine-methadone-ketamine-versus-dexmedetomidine-methadone-alfaxalone-for-cats-undergoing-ovariectomy
#5
Rocio Fernandez-Parra, Chiara Adami, Thomas Dresco, Thomas M Donnelly, Luca Zilberstein
OBJECTIVE: To compare the duration, quality of anaesthesia and analgesia, and quality of recovery of dexmedetomidine and methadone combined with either ketamine or alfaxalone. STUDY DESIGN: Randomized, prospective clinical trial. ANIMALS: A group of 44 healthy client-owned cats presenting for ovariectomy. METHODS: Cats were randomly assigned to one of the two treatment groups: DAM (n=22), which was administered intramuscularly (IM) dexmedetomidine (15 μg kg(-1)), methadone (0...
May 27, 2017: Veterinary Anaesthesia and Analgesia
https://www.readbyqxmd.com/read/29149857/putative-progressive-and-abortive-feline-leukemia-virus-infection-outcomes-in-captive-jaguarundis-puma-yagouaroundi
#6
Claudia Filoni, A Katrin Helfer-Hungerbuehler, José Luiz Catão-Dias, Mara Cristina Marques, Luciana Neves Torres, Manfred Reinacher, Regina Hofmann-Lehmann
BACKGROUND: Feline leukemia virus (FeLV) is an exogenous gammaretrovirus of domestic cats (Felis catus) and some wild felids. The outcomes of FeLV infection in domestic cats vary according to host susceptibility, virus strain, and infectious challenge dose. Jaguarundis (Puma yagouaroundi) are small wild felids from South and Central America. We previously reported on FeLV infections in jaguarundis. We hypothesized here that the outcomes of FeLV infection in P. yagouaroundi mimic those observed in domestic cats...
November 17, 2017: Virology Journal
https://www.readbyqxmd.com/read/29149627/a-simple-and-sensitive-two-tube-multiplex-pcr-assay-for-simultaneous-detection-of-ten-meat-species
#7
Olga V Prusakova, Xenia A Glukhova, Gaida V Afanas'eva, Yulia A Trizna, Ludmila F Nazarova, Igor P Beletsky
A sensitive and reliable technique for meat species identification is required to prevent food adulteration, particularly in meat production. This work developed an optimized multiplex PCR assay for simultaneous identification of five commonly consumed and five commonly banned meat species in meat products. We designed primers that specifically amplified mitochondrial ATPase subunit 8 gene regions of different lengths of bovine, ovine, swine, chicken, turkey, cat, dog, mouse and human DNAs. The developed multiplex PCR assay proved to be specific, sensitive down to 30pg DNA per reaction, reproducible and economical...
October 26, 2017: Meat Science
https://www.readbyqxmd.com/read/29148924/influence-of-gestational-diabetes-on-the-activity-of-%C3%AE-aminolevulinate-dehydratase-and-oxidative-stress-biomarkers
#8
Fabiane Rodrigues, Leidiane de Lucca, Walter S Neme, Thissiane de Lima Gonçalves
OBJECTIVES: This study aimed to evaluate the activity of delta-aminolevulinate dehydratase (δ-ALA-D) and oxidative stress biomarkers in pregnant women with gestational diabetes mellitus (GDM), in order to demonstrate the involvement of oxidative stress in this condition, which presents pathophysiology still undetermined. METHODS: δ-ALA-D activity, lipid peroxidation estimated as the levels of thiobarbituric acid reactive substances (TBARS), protein (P-SH) and non-protein thiol (NP-SH) content, catalase (CAT) activity and concentration of vitamin C (VIT C) in samples of pregnant women with GDM (n = 48) and in healthy pregnant women (n = 30), who constituted the control group...
November 17, 2017: Redox Report: Communications in Free Radical Research
https://www.readbyqxmd.com/read/29148400/avian-influenza-a-h7n2-virus-in-human-exposed-to-sick-cats-new-york-usa-2016
#9
Atanaska Marinova-Petkova, Jen Laplante, Yunho Jang, Brian Lynch, Natosha Zanders, Marisela Rodriguez, Joyce Jones, Sharmi Thor, Erin Hodges, Juan A De La Cruz, Jessica Belser, Hua Yang, Paul Carney, Bo Shu, LaShondra Berman, Thomas Stark, John Barnes, Fiona Havers, Patrick Yang, Susan C Trock, Alicia Fry, Larisa Gubareva, Joseph S Bresee, James Stevens, Demetre Daskalakis, Dakai Liu, Christopher T Lee, Mia Kim Torchetti, Sandra Newbury, Francine Cigel, Kathy Toohey-Kurth, Kirsten St George, David E Wentworth, Stephen Lindstrom, C Todd Davis
An outbreak of influenza A(H7N2) virus in cats in a shelter in New York, NY, USA, resulted in zoonotic transmission. Virus isolated from the infected human was closely related to virus isolated from a cat; both were related to low pathogenicity avian influenza A(H7N2) viruses detected in the United States during the early 2000s.
December 2017: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/29148169/antitumor-and-anti-metastatic-mechanisms-of-rhizoma-paridis-saponins-in-lewis-mice
#10
Shuli Man, Hongyan Chai, Jingxia Cui, Jingwen Yao, Long Ma, Wenyuan Gao
Lung cancer is one of the most common causes of death in the world. Rhizoma paridis saponins (RPS) have been found to show inhibition of pulmonary adenoma in previous research. However, the detailed mechanisms of RPS from a holistic view have not been established. In this study, Lewis pulmonary adenoma mice were successfully established to analyze the pathways involved in RPS intervening tumor formation and progression. As a result, RPS inhibited levels of cytokines or receptors such as VEGFD, VEGFR3, RAGE, IL6R, IL17BR, and CXCL16 which were regarded as the initiators induced tumor cell proliferation, adhesion, angiogenesis, and invasion...
November 17, 2017: Environmental Toxicology
https://www.readbyqxmd.com/read/29148158/long-term-anesthetic-protocol-in-rats-feasibility-in-electrophysiology-studies-in-visual-prosthesis
#11
Alejandro Barriga-Rivera, Veronica Tatarinoff, Nigel H Lovell, John W Morley, Gregg J Suaning
Electrical stimulation of excitable cells provides therapeutic benefits for a variety of medical conditions, including restoration of partial vision to those blinded via some types of retinal degeneration. To improve visual percepts elicited by the current technology, researchers are conducting acute electrophysiology experiments, mainly in cats. However, the rat can provide a model of a range of retinal diseases and possesses a sufficiently large eye to be used in this field. This article presents a long-term anesthetic protocol to enable electrophysiology experiments to further the development of visual prostheses...
November 17, 2017: Veterinary Ophthalmology
https://www.readbyqxmd.com/read/29147969/effect-of-dietary-phospholipid-levels-on-growth-lipid-metabolism-and-antioxidative-status-of-juvenile-hybrid-snakehead-channa-argus%C3%A3-channa-maculata
#12
Shi-Mei Lin, Fa-Jian Li, Bundit Yuangsoi, Sompong Doolgindachbaporn
The study was conducted to evaluate the effect of dietary phospholipids (PLs) on growth, lipid metabolism, and antioxidative status of hybrid snakehead (Channa argus × Channa maculata). Five isonitrogenous and isolipidic diets with graded levels of PLs (8.5, 19.3, 30.7, 41.5, and 50.8 g kg(-1)) were fed to triplicate groups of juveniles (initial body weight 12.6 ± 0.23 g) for 8 weeks. Results showed that dietary PL supplementation significantly improved growth of juveniles. The final body weight (FBW) and specific growth rate (SGR) significantly increased with dietary PLs increasing from 8...
November 16, 2017: Fish Physiology and Biochemistry
https://www.readbyqxmd.com/read/29147966/polyamine-concentration-is-increased-in-thoracic-ascending-aorta-of-patients-with-bicuspid-aortic-valve
#13
Amalia Forte, Mario Grossi, Ciro Bancone, Marilena Cipollaro, Marisa De Feo, Per Hellstrand, Lo Persson, Bengt-Olof Nilsson, Alessandro Della Corte
Polyamines are cationic molecules synthesized via a highly regulated pathway, obtained from the diet or produced by the gut microbiota. They are involved in general molecular and cellular phenomena that play a role also in vascular disease. Bicuspid aortic valve (BAV) is a congenital malformation associated to a greater risk of thoracic ascending aorta (TAA) aneurysm, whose pathogenesis is not yet well understood. We focused on differential analysis of key members of polyamine pathway and on polyamine concentration in non-dilated TAA samples from patients with either stenotic tricuspid aortic valve (TAV) or BAV (diameter ≤ 45 mm), vs...
November 17, 2017: Heart and Vessels
https://www.readbyqxmd.com/read/29147915/use-of-enzyme-linked-immunosorbent-assay-to-screen-for-aflatoxins-ochratoxin-a-and-deoxynivalenol-in-dry-pet-foods
#14
Tara A Okuma, Thu P Huynh, Rosalee S Hellberg
The objective of this study was to perform a market survey on dry pet foods using enzyme-linked immunosorbent assay (ELISA) to detect total aflatoxins (AFs), ochratoxin A (OTA), and deoxynivalenol (DON). Pet food products (n = 58) marketed for dogs, cats, birds, and rabbits were tested in duplicate with ELISA, and results above the limit of quantitation were confirmed using liquid chromatography tandem mass spectrometry (LC-MS/MS). OTA was detected in one product (rabbit food) and AFs were detected in two products (one dog treat and one bird treat)...
November 16, 2017: Mycotoxin Research
https://www.readbyqxmd.com/read/29147490/hypolipidemic-effects-of-total-flavonoide-extracted-from-the-leaves-of-actinidiakolomikta-in-rats-fed-a-high-fat-diet
#15
Zhenxiang Yu, Huali Xu, Xiaofeng Yu, Dayun Sui, Guangzhu Lin
Objectives: This study was to investigate the antihyperlipidemic and antioxidant effect of total flavonoid extract from Actinidiakolomikta (TFAK) in hyperlipidemia induced by a high-fat diet. Materials and Methods: Male SD rats were randomly divided into 6 groups: normal group, model (hyperlipidemic diet) group, hyperlipedemic diet supplemented with TFAK (50, 100 and 200 mg/kg) and simvastatin (30 mg/kg) groups. The rats were administrated TFAK by oral for 28 days...
October 2017: Iranian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/29146945/maraba-virus-vectored-cancer-vaccines-represent-a-safe-and-novel-therapeutic-option-for-cats
#16
Jeff Hummel, Dorothee Bienzle, Annette Morrison, Michelle Cieplak, Kyle Stephenson, Josepha DeLay, J Paul Woods, Brian D Lichty, Byram W Bridle
Direct killing of malignant cells combined with induction of tumour-specific immune responses makes oncolytic vaccines attractive for cancer therapy. We previously developed a heterologous cancer immunization strategy that utilized a replication-defective adenovirus-vectored primary vaccine encoding a tumour antigen followed by boosting with a replication-competent Maraba virus expressing the same antigen. To assess the safety of oncolytic Maraba virus-based booster vaccines and inform the design of clinical trials, we conducted translational studies in cats, which have immune systems that are similar to people and spontaneously develop cancers of comparable types and etiologies...
November 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29146914/cat-d-a-targeted-sequencing-method-for-the-simultaneous-detection-of-small-dna-mutations-and-large-dna-deletions-with-flexible-boundaries
#17
Ru Hong, Udita Chandola, Li-Feng Zhang
We developed a targeted DNA sequencing method that is capable of detecting a comprehensive panel of DNA mutations including small DNA mutations and large DNA deletions with unknown/flexible boundaries. The method directly identifies the large DNA deletions (Cat-D) without relying on sequencing coverage to make the genotype calls. We performed the method to simultaneously detect 10 small DNA mutations in β-thalassemia and 2 large genomic deletions in α-thalassemia from 10 genomic DNA samples. Cat-D was performed on 8 genomic DNA samples in duplicate...
November 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29145786/cephalexin-susceptibility-breakpoint-for-veterinary-isolates-clinical-laboratory-standards-institute-revision
#18
Mark G Papich, Cindy Lindeman
The Clinical and Laboratory Standards Institute (CLSI) uses cephalothin as the class representative for testing veterinary isolates for susceptibility to other first-generation cephalosporins, including cephalexin. We examined replacing cephalothin with cephalexin because cephalexin is used more often clinically. Bacterial isolates were obtained from dogs and cats from a national surveillance program. CLSI testing methods were used to determine the MIC for 4 cephalosporins used in veterinary medicine. Cephalexin clinical breakpoints for canine isolates were established by using published pharmacokinetic data and Monte Carlo simulations to calculate the probability of target attainment (PTA)...
November 1, 2017: Journal of Veterinary Diagnostic Investigation
https://www.readbyqxmd.com/read/29145601/identification-and-functional-analysis-of-potential-prophage-derived-recombinases-for-genome-editing-in-lactobacillus-casei
#19
Yongping Xin, Tingting Guo, Yingli Mu, Jian Kong
Numerous LAB bacteriophage genomes have been sequenced, while the functional genes are yet to be exploited. In this study, a λ Red-like recombinase operon LCABL_13040-50-60 was identified from a prophage PLE3 in Lactobacillus casei BL23 genome, and its recombination function was confirmed by replacement of a 167 bp galK fragment with chloramphenicol-resistant gene (cat) in the L. casei BL23 genome. Further functional analysis showed that LCABL_13040 and LCABL_13060 were analogs to the host nuclease inhibitor (Redγ) and 5'-3' exonuclease (Redα/RecE), respectively...
November 14, 2017: FEMS Microbiology Letters
https://www.readbyqxmd.com/read/29145430/de-novo-sequencing-and-analysis-of-the-transcriptome-during-the-browning-of-fresh-cut-luffa-cylindrica-fusi-3-fruits
#20
Haisheng Zhu, Jianting Liu, Qingfang Wen, Mindong Chen, Bin Wang, Qianrong Zhang, Zhuzheng Xue
Fresh-cut luffa (Luffa cylindrica) fruits commonly undergo browning. However, little is known about the molecular mechanisms regulating this process. We used the RNA-seq technique to analyze the transcriptomic changes occurring during the browning of fresh-cut fruits from luffa cultivar 'Fusi-3'. Over 90 million high-quality reads were assembled into 58,073 Unigenes, and 60.86% of these were annotated based on sequences in four public databases. We detected 35,282 Unigenes with significant hits to sequences in the NCBInr database, and 24,427 Unigenes encoded proteins with sequences that were similar to those of known proteins in the Swiss-Prot database...
2017: PloS One
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