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https://www.readbyqxmd.com/read/28732031/breast-tissue-ablation-with-irreversible-electroporation-in-rabbits-a-safety-and-feasibility-study
#1
Wenlong Zhang, Wanning Wang, Wei Chai, Xiaomei Luo, Jiannan Li, Jian Shi, Liqi Bi, Lizhi Niu
BACKGROUND AND AIM: Irreversible electroporation (IRE) was confirmed to control several solid tumors effectively in vivo. Our preclinical study aimed to assess the feasibility and safety of IRE in the breast of rabbit. METHODS: Thirty New Zealand white rabbits were randomly divided into 3 groups of 10 rabbits (control group, IRE group A, and B). Two mono-electrode needles were inserted into the breast tissue by percutaneous puncture. Electrocardiogram and vital signs were monitored before, during, and after ablation...
2017: PloS One
https://www.readbyqxmd.com/read/28731330/mapping-functionally-important-residues-in-the-na-dicarboxylate-cotransporter-nadc1
#2
Claire Colas, Avner Schlessinger, Ana M Pajor
Transporters from the SLC13 family couple the transport of 2-4 Na+ ions with a di- or tricarboxylate, such as succinate or citrate. We have previously modeled mammalian SLC13 members including the Na+/dicarboxylate cotransporter NaDC1 (SLC13A2), based on a structure of the bacterial homolog VcINDY in an inward-facing conformation with one sodium ion bound at the Na1 site. In the present study, we modeled the outward-facing conformation of the rabbit and human NaDC1 (rbNaDC1 and hNaDC1) using an outward-facing model of VcINDY as a template, and identified residues in or near the putative Na2 and Na3 cation binding sites...
July 21, 2017: Biochemistry
https://www.readbyqxmd.com/read/28730829/mechanism-of-electrocardiographic-t-wave-flattening-in-diabetes-mellitus-experimental-and-simulation-study
#3
K A Sedova, J E Azarov, N V Arteyeva, A O Ovechkin, M A Vaykshnorayte, V A Vityazev, O G Bernikova, D N Shmakov, P Kneppo
In the present study we investigated the contribution of ventricular repolarization time (RT) dispersion (the maximal difference in RT) and RT gradients (the differences in RT in apicobasal, anteroposterior and interventricular directions) to T-wave flattening in a setting of experimental diabetes mellitus. In 9 healthy and 11 diabetic (alloxan model) open-chest rabbits, we measured RT in ventricular epicardial electrograms. To specify the contributions of apicobasal, interventricular and anteroposterior RT gradients and RT dispersion to the body surface potentials we determined T-wave voltage differences between modified upper- and lower-chest precordial leads (T-wave amplitude dispersions, TWAD)...
July 18, 2017: Physiological Research
https://www.readbyqxmd.com/read/28730738/the-effects-of-aspirated-thickened-water-on-survival-and-pulmonary-injury-in-a-rabbit-model
#4
Nogah Nativ-Zeltzer, Maggie A Kuhn, Denise M Imai, Ryan P Traslavina, Amanda S Domer, Juliana K Litts, Brett Adams, Peter C Belafsky
OBJECTIVES/HYPOTHESIS: Liquid thickeners are one of the most frequently utilized treatment strategies for persons with oropharyngeal swallowing dysfunction. The effect of commercially available thickeners on lung injury is uncertain. The purpose of this study was to compare the effects of aspiration of water alone, xanthan gum (XG)-thickened water, and cornstarch (CS)-thickened water on survival and lung morphology in a rabbit model. STUDY DESIGN: Animal model. Prospective small animal clinical trial...
July 21, 2017: Laryngoscope
https://www.readbyqxmd.com/read/28730387/dynamics-of-the-pro-oxidant-antioxidant-system-parameters-in-wound-discharge-and-plasma-in-experimental-purulent-wound-during-its-technological-liquid-phase-treatment
#5
I M Bykov, A A Basov, V V Malyshko, S S Dzhimak, S R Fedosov, A V Moiseev
The dynamics of the pro-oxidant/antioxidant system of rabbits was studied at the local (in exudate) and systemic (blood) levels during therapy of purulent wounds in liquid medium with the use of a programmed device and the efficiency of the proposed technological method was compared with that of classical methods for the treatment of these wounds. More rapid recovery of the indicators of the pro-oxidant/antioxidant system to physiological values in the postoperative period was observed after treatment by the proposed method (7 days vs...
July 18, 2017: Bulletin of Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28730231/chondroprotective-effects-of-pulsed-shortwave-therapy-in-rabbits-with-experimental-osteoarthritis
#6
Rodica Ana Ungur, Adrian Florea, Alexandru Flaviu Tăbăran, Iuliu Călin Scurtu, Ioan Onac, Ileana Monica Borda, László Irsay, Viorela Mihaela Ciortea, Eleonora Dronca, Mihnea Tudor Zdrenghea, ŞoimiŢa Mihaela Suciu
INTRODUCTION: Osteoarthritis (OA) represents a public health challenge since the pathogenic treatment, able to induce cartilage regeneration, still remains unknown. Ageing of the population and increasing OA prevalence have led to a lot of research, aiming to identify treatments acting on chondrocytes that play a determinant role in cartilage degeneration÷regeneration balance. Pulsed shortwave therapy (with the classical application form - Diapulse) is a physiotherapy method with anabolic effects demonstrated on nervous, conjunctive and vascular tissues, but its effects on OA cartilage are not known...
2017: Romanian Journal of Morphology and Embryology, Revue Roumaine de Morphologie et Embryologie
https://www.readbyqxmd.com/read/28730101/comparative-analysis-of-different-feeder-layers-with-3t3-fibroblasts-for-culturing-rabbits-limbal-stem-cells
#7
Hui-Xian Wang, Xiao-Wei Gao, Bing Ren, Yan Cai, Wen-Jing Li, Yu-Li Yang, Yi-Jian Li
AIM: To explore the possibility of human umbilical cord mesenchymal stem cells (hUCMSCs), human umbilical vein endothelial cells (hUVECs), human dental pulp stem cells (hDPSCs) and human periodontal ligament stem cells (hPDLSCs) serving as feeder cells in co-culture systems for the cultivation of limbal stem cells. METHODS: Different feeder layers were cultured in Dulbecco's modified Eagle's medium (DMEM)/F12 and were treated with mitomycin C. Rabbits limbal stem cells (LSCs) were co-cultured on hUCMSCs, hUVECs, hDPSCs, hPDLSCs and NIH-3T3, and then comparative analysis were made between each group to see their respective colony-forming efficiency (CFE) assay and immunofluorescence (IPO13,CK3/12)...
2017: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/28730072/effects-of-lens-extirpation-with-anterior-vitrectomy-on-vitreous-three-dimensional-mesh-structure
#8
Yan Zhao, Long-Fang Zhou, Hong Yang
AIM: To investigate the changes in vitreous gel structure after lens extirpation combined with anterior vitrectomy in rabbit eyes. METHODS: Twenty-eight chinchilla rabbits were divided into three groups. The control group (Group I) included 16 eyes from eight rabbits who did not receive any treatment. Group II included 20 eyes from 10 rabbits that underwent lens aspiration only. Group III included 20 eyes from 10 rabbits that underwent lens aspiration combined with posterior capsulotomy and anterior vitrectomy...
2017: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/28729925/patterns-of-production-of-collagen-rich-deposits-in-peripheral-nerves-in-response-to-injury-a-pilot-study-in-a-rabbit-model
#9
Michael Rivlin, Andrew Miller, Jacob Tulipan, Pedro K Beredjiklian, Mark L Wang, Jolanta Fertala, Andrzej Steplewski, James Kostas, Andrzej Fertala
INTRODUCTION: Although collagen-rich deposits are the main component of neural scars, the patterns of their formation are ill defined. Essential to the biosynthesis of collagen fibrils are enzymes catalyzing posttranslational modifications and chaperones that control the formation of the collagen triple helix. Prolyl-4-hydroxylase (P4H) and heat shock protein-47 (HSP47) play a key role, and their production is upregulated during scar formation in human tissues. Alpha smooth muscle actin (αSMA) is also produced during fibrotic processes in myofibroblasts that participate in fibrotic response...
July 2017: Brain and Behavior
https://www.readbyqxmd.com/read/28729851/development-and-validation-of-an-enzyme-linked-immunosorbent-assay-for-the-detection-of-binding-anti-drug-antibodies-against-interferon-beta
#10
Kathleen Ingenhoven, Daniel Kramer, Poul Erik Jensen, Christina Hermanrud, Malin Ryner, Florian Deisenhammer, Marc Pallardy, Til Menge, Hans-Peter Hartung, Bernd C Kieseier, Elisa Bertotti, Paul Creeke, Anna Fogdell-Hahn, Clemens Warnke
OBJECTIVE: To develop and validate a method for the detection of binding anti-drug antibodies (ADAs) against interferon beta (IFN-β) in human serum as part of a European initiative (ABIRISK) aimed at the prediction and analysis of clinical relevance of anti-biopharmaceutical immunization to minimize the risk. METHOD: A two-tiered bridging enzyme-linked immunosorbent assay (ELISA) format was selected and validated according to current recommendations. Screening assay: ADA in serum samples form complexes with immobilized IFN-β and biotinylated IFN-β, which are then detected using HRP labeled Streptavidin and TMB substrate...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28729288/urinary-extracellular-vesicles-of-podocyte-origin-and-renal-injury-in-preeclampsia
#11
Sarwat I Gilani, Ulrik Dolberg Anderson, Muthuvel Jayachandran, Tracey L Weissgerber, Ladan Zand, Wendy M White, Natasa Milic, Maria Lourdes Gonzalez Suarez, Rangit Reddy Vallapureddy, Åsa Nääv, Lena Erlandsson, John C Lieske, Joseph P Grande, Karl A Nath, Stefan R Hansson, Vesna D Garovic
Renal histologic expression of the podocyte-specific protein, nephrin, but not podocin, is reduced in preeclamptic compared with normotensive pregnancies. We hypothesized that renal expression of podocyte-specific proteins would be reflected in urinary extracellular vesicles (EVs) of podocyte origin and accompanied by increased urinary soluble nephrin levels (nephrinuria) in preeclampsia. We further postulated that podocyte injury and attendant formation of EVs are related mechanistically to cellfree fetal hemoglobin (HbF) in maternal plasma...
July 20, 2017: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/28729125/comparative-effects-of-vitamin-d-and-methylprednisolone-against-ischemia-reperfusion-injury-of-rabbit-spinal-cords
#12
Bora Gürer, Abdullah Karakoç, Pınar Kuru Bektaşoğlu, Hayri Kertmen, Mehmet Ali Kanat, Ata Türker Arıkök, Berrin İmge Ergüder, Mustafa Fevzi Sargon, Özden Çağlar Öztürk, Erhan Çelikoğlu
INTRODUCTION: Recent studies have demonstrated the neuroprotective and immunomodulatory effects of 1,25-dihydroxyvitamin D3 (calcitriol), but no previous study has examined these effects on spinal cord ischemia/reperfusion (I/R) injury. Therefore, the present study aimed to evaluate whether calcitriol protects the spinal cord from I/R injury. METHODS: Rabbits were randomized into four groups of eight animals: group 1 (laparotomy control), group 2 (ischemia control), group 3 (30mg/kg intraperitoneal methylprednisolone at surgery), and group 4 (0...
July 17, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28728897/1-3-oxazole-based-selective-picomolar-inhibitors-of-cytosolic-human-carbonic-anhydrase-ii-alleviate-ocular-hypertension-in-rabbits-potency-is-supported-by-x-ray-crystallography-of-two-leads
#13
Marta Ferraroni, Laura Luccarini, Emanuela Masini, Mikhail Korsakov, Andrea Scozzafava, Claudiu T Supuran, Mikhail Krasavin
Two lead 1,3-oxazole-based carbonic anhydrase inhibitors (CAIs) earlier identified as selective, picomolar inhibitors of hCA II (a cytosolic target for treatment of glaucoma) have been investigated further. Firstly, they were found to be conveniently synthesized on multigram scale, which enables further development. These compounds were found to be comparable in efficacy to dorzolamide eye drops when applied in the eye drop form as well. Finally, the reasons for unusually high potency of these compounds became understood from their high-resolution X-ray crystallography structures...
July 11, 2017: Bioorganic & Medicinal Chemistry
https://www.readbyqxmd.com/read/28728597/interaction-of-direct-and-social-genetic-effects-with-feeding-regime-in-growing-rabbits
#14
Miriam Piles, Ingrid David, Josep Ramon, Laurianne Canario, Oriol Rafel, Mariam Pascual, Mohamed Ragab, Juan P Sánchez
BACKGROUND: Most rabbit production farms apply feed restriction at fattening because of its protective effect against digestive diseases that affect growing rabbits. However, it leads to competitive behaviour between cage mates, which is not observed when animals are fed ad libitum. Our aim was to estimate the contribution of direct ([Formula: see text]) and social ([Formula: see text]) genetic effects (also known as indirect genetic effects) to total heritable variance of average daily gain ([Formula: see text]) in rabbits on different feeding regimens (FR), and the magnitude of the interaction between genotype and FR (G × FR)...
July 20, 2017: Genetics, Selection, Evolution: GSE
https://www.readbyqxmd.com/read/28728357/effects-of-dietary-alfalfa-flavonoids-on-the-performance-meat-quality-and-lipid-oxidation-of-growing-rabbits
#15
Sihem Dabbou, Laura Gasco, Luca Rotolo, Luisa Pozzo, Jian Ming Tong, Xiao Fang Dong, Patrizia Rubiolo, Achille Schiavone, Francesco Gai
Objective: The present experiment has tested the effect of the dietary alfalfa flavonoids (AAF) supplementation on the productive performances, carcass characteristics,meat quality and lipid oxidation of growing rabbits. Methods: One hundred and sixty crossbred rabbits (42 days old) were divided into four groups of forty animals each and were fed either acontrol diet (AAF0) or an AAF0 diet supplemented with 400, 800 or 1200 mg of AAF/kg per diet (AAF4,AAF8 and AAF12, respectively) from weaning to slaughtering (102days old)...
June 27, 2017: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/28728177/porcine-collagen-transconjunctival-wound-closure-system-for-microincisional-vitrectomy-surgery
#16
Tiffany A Chen, Peter K Kaiser, Rainer Fasching, Darius M Moshfeghi
BACKGROUND AND OBJECTIVE: Microincisional vitrectomy surgery has improved outcomes for vitrectomies; however, wound closure complications remain an important concern. The authors introduce a technique to improve transconjunctival wound closure in vitrectomy surgery. PATIENTS AND METHODS: The authors evaluated the efficacy of porcine collagen plugs on stopping leakage from sclerotomy test sites in vitro and in vivo and assessed wound site healing with histology samples...
July 1, 2017: Ophthalmic Surgery, Lasers & Imaging Retina
https://www.readbyqxmd.com/read/28727765/defining-the-target-and-the-effect-of-imatinib-on-the-filarial-c-abl-homologue
#17
Elise M O'Connell, Olena Kamenyeva, Sara Lustigman, Aaron Bell, Thomas B Nutman
BACKGROUND: Previously we demonstrated the micro- and macrofilaricidal properties of imatinib in vitro. Here we use electron and multiphoton microscopy to define the target of imatinib in the adult and microfilarial stages of Brugia malayi, and assess the effects of pharmacologically relevant levels of imatinib on the adult parasites. METHODS: After fixation of adult B. malayi males and females, sections were stained with polyclonal rabbit anti-c-Abl antibody (or isotype control) and imaged with multiphoton fluorescent microscopy...
July 20, 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28727604/preclinical-development-of-ebi-005-an-il-1-receptor-1-inhibitor-for-the-topical-ocular-treatment-of-ocular-surface-inflammatory-diseases
#18
Joseph Kovalchin, Bracken King, Allyson Masci, Elizabeth Hopkins, Jeremy Fry, Jay Hou, Christian Li, Kelly Tenneson, Steve Weber, Gary Wolfe, Kathy Collins, Eric S Furfine
OBJECTIVE: Topical interleukin (IL)-1 receptor (R)1 blockade is therapeutically active in reducing signs and symptoms of dry eye disease. Herein, we describe in vitro and in vivo nonclinical Investigational New Drug (IND)-enabling studies of EBI-005, a novel protein chimera of IL-1β and IL-1 receptor antagonist (IL-1Ra or anakinra) that potently binds IL-1R1 and blocks signaling. These studies provide an assessment of receptor affinity, drug bioavailability, immunogenic response, safety, and tolerability in mice and rabbits...
July 18, 2017: Eye & Contact Lens
https://www.readbyqxmd.com/read/28727047/a-diet-supplemented-with-n-3-polyunsaturated-fatty-acids-influences-the-metabomscic-and-endocrine-response-of-rabbit-does-and-their-offspring
#19
M Rodríguez, R M García-García, M Arias-Álvarez, N Formoso-Rafferty, P Millán, J López-Tello, P L Lorenzo, A González-Bulnes, P G Rebollar
The aim of the present study was to evaluate the productive, endocrine, and metabomscic responses as well as oxidative stress of rabbit does and their offspring when fed a diet supplemented with -3 PUFA during their first productive cycle. To this aim, a total of 105 rabbit does were fed ad mscibitum from d 60 to 172 of age 2 isoenergetic and isoproteic diets differing in fatty acid composition. The control diet ( = 52 does) contained 45.9 g/kg of -3 of the total fatty acids and the enriched diet ( = 53 does) contained 149...
June 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28727044/muscle-lipid-metabolism-in-two-rabbit-lines-divergently-selected-for-intramuscular-fat
#20
M Martínez-Álvaro, S Agha, A Blasco, P Hernández
A divergent selection experiment for intramuscular fat (IMF) of LM at 9 wk of age was performed in rabbits. The objective of this work was to compare the lipid metabolism in muscles and fat tissues of the high-IMF and low-IMF lines. Lipogenic, catabolic, and lipolytic activities were studied in 2 muscles with different oxidative patterns (LM and semimembranosus proprius) and in the perirenal fat depot at 2 ages, 9 and 13 wk. In addition, adipocytes were characterized in perirenal fat. In the fifth generation, direct response to selection was 0...
June 2017: Journal of Animal Science
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