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https://www.readbyqxmd.com/read/28636058/percutaneous-tibial-physeal-fracture-repair-in-small-animals-technique-and-17-cases
#1
Dirsko J F von Pfeil, Mathieu Glassman, Meaghan Ropski
OBJECTIVES: To retrospectively describe cases treated via percutaneous tibial physeal fracture repair (PTPFR), using intra-operative fluoroscopy (IFL) or digital radiography (DR). To describe a technique ("spiking"), used to treat tibial tuberosity avulsion fractures. METHODS: Clinical data of 14 dogs and three cats were included. The "spiking" technique was described. RESULTS: Intra-operative fluoroscopy (n = 11) and DR (n = 6) were successfully used in 11 tibial tuberosity avulsion fractures, one combined proximal physeal and tibial tuberosity avulsion fracture, and five distal tibial/fibular physeal fractures...
June 21, 2017: Veterinary and Comparative Orthopaedics and Traumatology: V.C.O.T
https://www.readbyqxmd.com/read/28635403/psychomotor-skills-assessment-by-motion-analysis-in-minimally-invasive-surgery-on-an-animal-organ
#2
Erlend Fagertun Hofstad, Cecilie Våpenstad, Lars Eirik Bø, Thomas Langø, Esther Kuhry, Ronald Mårvik
BACKGROUND: A high level of psychomotor skills is required to perform minimally invasive surgery (MIS) safely. To be able to measure these skills is important in the assessment of surgeons, as it enables constructive feedback during training. The aim of this study was to test the validity of an objective and automatic assessment method using motion analysis during a laparoscopic procedure on an animal organ. MATERIAL AND METHODS: Experienced surgeons in laparoscopy (experts) and medical students (novices) performed a cholecystectomy on a porcine liver box model...
February 8, 2017: Minimally Invasive Therapy & Allied Technologies: MITAT
https://www.readbyqxmd.com/read/28634450/leonurine-improves-age-dependent-impaired-angiogenesis-possible-involvement-of-mitochondrial-function-and-hif-1%C3%AE-dependent-vegf-activation
#3
Jia Qi, Jing J Wang, Jun L Duan, Zhao Y Lu, Yang G Yuan
Objective: Advanced age is associated with impaired angiogenesis in part because of mitochondrial dysfunction. We have recently reported that leonurine exerts protective effects in neuron via regulation of mitochondrial function. The aim of this study was to explore whether leonurine is able to attenuate mitochondrial dysfunction and to enhance angiogenesis in old rats with hindlimb ischemia. Methods and Results: At day 14 after surgery, hypoxia-inducible factor (HIF)-1α and vascular endothelial growth factor (VEGF) expression was decreased in the ischemic muscle of aged animals, which was accompanied by enhanced oxidative stress, increased mitochondrial damage, decreased capillary density, and reduced limb perfusion compared with young mice...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28633397/impact-of-a-refined-advanced-design-for-left-atrial-appendage-exclusion
#4
Gengo Sunagawa, Jamshid H Karimov, May Breitbach, Nicholas A Robinson, Kiyotaka Fukamachi
OBJECTIVES: Exclusion of the left atrial appendage has been proposed to reduce the risk of stroke in patients with atrial fibrillation. The aim of this study was to evaluate the feasibility and efficacy of the AtriClip PRO·V device (AOD2), now in development, for left atrial appendage exclusion in a canine model. METHODS: The newest AtriClip design comprises a dual-spring mechanism that allows the clip to open into a 'V' shape while still providing equivalent force along the length of the beam...
June 13, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/28632547/a-less-invasive-retroperitoneal-lumbar-approach-animal-feasibility-study-and-primary-clinical-study
#5
Yu Qian, Zhen Lin, Cong Jin, Xing Zhao, Minghao Zheng
STUDY DESIGN: Surgical approach development in an animal model, and a prospective study comparing clinical outcomes between novel and conventional approaches in thoracolumbar burst fracture fixation. OBJECTIVE: To investigate the feasibility of a less-invasive retroperitoneal approach to the lumbar spine in a sheep model and to compare the clinical outcomes of anterior reconstruction in the treatment of thoracolumbar burst fractures using novel and conventional approaches...
July 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28632534/administration-of-tetrahydrobiopterin-bh4-protects-the-renal-microcirculation-from-ischemia-and-reperfusion-injury
#6
Lokmane Rahmania, Diego Orbegozo, Fuhong Su, Fabio Silvio Taccone, Jean-Louis Vincent, Daniel De Backer
BACKGROUND: Abdominal aortic aneurysm surgery with suprarenal cross-clamping is often associated with renal injury. Although the mechanism underlying such injury is unclear, tissue ischemia and reperfusion, which induces endothelial dysfunction and decreases the availability of tetrahydrobiopterin (BH4), may play a role. We evaluated whether BH4 administration prevents renal ischemia/reperfusion injury in an animal model of aortic cross-clamping. METHODS: Nineteen anesthetized, mechanically ventilated, and invasively monitored adult sheep were randomized into 3 groups: sham animals (n = 5) that underwent surgical preparation but no aortic clamping; an ischemia/reperfusion group (n = 7), where the aorta was clamped above the renal arteries for 1 hour, and a BH4 group (n = 7), in which animals received 20 mg/kg of BH4 followed by aortic cross-clamp for 1 hour...
June 17, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28631680/-the-influence-of-retinoids-on-the-regeneration-of-an-open-osteal-wound
#7
F V Semenov, G K Leonov
The objective of the present study was to elucidate the influence of retinoid-based pharmaceutical products on the process of regeneration of the tissues surrounding an open osteal wound under the experimental conditions. The experiments were carried out using 20 'Sovetskaya shinshilla' rabbits (12 males and 8 females). The animals with the modelled open osteal wound underwent daily treatment by the placement of the dressings impregnated with a mixture of dioxo-methyltetrahydropyrimidine and chloramphenicol ointments supplemented by 0...
2017: Vestnik Otorinolaringologii
https://www.readbyqxmd.com/read/28629420/comparison-of-the-effects-of-platelet-rich-or-growth-factor-rich-plasma-on-intestinal-anastomosis-healing-in-pigs
#8
Gessica Giusto, Cristina Vercelli, Selina Iussich, Massimiliano Tursi, Giovanni Perona, Marco Gandini
BACKGROUND: The use of autologous platelet-rich plasma (PRP) and plasma rich in growth factors (PRGF) has been proposed for the treatment of several acute and chronic syndromes, such as corneal epithelial defects and dry eye syndrome, gum bleeding during oral surgery, and in orthopaedic surgery. We hypothesized that PRGF, rather than PRP, could be more effective because of its intrinsic characteristics in promoting the healing of intestinal anastomosis. The purpose of the present study was to evaluate and compare the effects of PRP and PRGF on various parameters of anastomotic healing in a swine model...
June 19, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/28627210/lactobacillus-rhamnosusgg-reduces-hepatic-fibrosis-in-a-model-of-chronic-liver-disease-in-rats
#9
Thais Ortiz Hammes, Renata Leke, Thayssa Dalla Costa Escobar, Laisa Beduschi Fracasso, Fabiola Schons Meyer, Michael Éverton Andrades, Themis Reverbel da Silveira
BACKGROUND: The intestinal dysbiosis is common in chronic liver disease and can induce to inflammatory responses and mediate the collagen deposition in the liver. AIM: To evaluate the probiotic Lactobacillus rhamnosus GG (LGG) for the treatment of liver fibrosis in a model of chronic cholestatic liver disease in rats. METHODS: Male adult Wistar rats (n = 29) were submitted to common bile duct ligation (BDL groups) or manipulation of common bile duct without ligation (Ctrl groups)...
June 5, 2017: Nutrición Hospitalaria: Organo Oficial de la Sociedad Española de Nutrición Parenteral y Enteral
https://www.readbyqxmd.com/read/28627055/cholelithiasis-in-adult-bearded-dragons-retrospective-study-of-nine-adult-bearded-dragons-pogona-vitticeps-with-cholelithiasis-between-2013-and-2015-in-southern-germany
#10
A Gimmel, H Kempf, S Öfner, D Müller, A Liesegang
With an increased number of pet reptiles, many diseases occur due to nutritional disorders. Between 2013 and 2015, irregular gallbladder contents (sludge/choleliths) in adult bearded dragons (Pogona vitticeps) were recorded in many of the routinely conducted necropsies at the reptile rescue station in Munich (Auffangstation für Reptilien, München e.V., Munich, Germany). Nine animals, six from the rescue station and three from an associated veterinary practice (Tierärztliche Praxis für Exoten, Augsburg, Germany), were studied...
June 2017: Journal of Animal Physiology and Animal Nutrition
https://www.readbyqxmd.com/read/28626949/diagnosis-and-treatment-of-concurrent-dermal-malignant-melanoma-and-melanocytomas-in-a-pygmy-hippopotamus-choeropsis-liberiensis
#11
Richard A Saunders, Rowena S Killick, Michelle G Barrows, Kelly A Bowlt, Daniella Denk
BACKGROUND: Dermal melanocytic neoplasms are common in some even-toed ungulates (Artiodactyla), yet this entity has not been reported in the pygmy hippopotamus to date. Concurrent occurrence of multiple benign and malignant melanocytic neoplasms is unusual. Malignant transformation occurs in a small percentage of benign melanocytic tumours in people but this phenomenon has not been well documented in animals. OBJECTIVES: To report the diagnosis and treatment of concurrent dermal melanocytomas and malignant melanomas in a pygmy hippopotamus...
June 18, 2017: Veterinary Dermatology
https://www.readbyqxmd.com/read/28624656/strontium-and-cobalt-substituted-bioactive-glasses-seeded-with-human-umbilical-cord-perivascular-cells-to-promote-bone-regeneration-via-enhanced-osteogenic-and-angiogenic-activities
#12
Saeid Kargozar, Nasrin Lotfibakhshaiesh, Jafar Ai, Masoud Mozafari, Peiman Brouki Milan, Sepideh Hamzehlou, Mahmoud Barati, Francesco Baino, Robert G Hill, Mohammad Taghi Joghataei
Designing and developing new biomaterials to accelerate bone healing are currently under progress. In this study, we attempted to promote osteogenesis using strontium- and cobalt- substituted bioactive glasses (BGs) seeded with human umbilical cord perivascular cells (HUCPVCs) in a critical size defect in the distal femur of rabbit animal model. The BG particles were successfully synthesized in the form of granules using the melt-derived route. After being isolated, HUCPVCs were expanded and then characterized to use during in vitro and in vivo procedures...
June 14, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28623826/mechanical-characterization-via-nanoindentation-of-the-woven-bone-developed-during-bone-transport
#13
J Mora-Macías, A Pajares, P Miranda, J Domínguez, E Reina-Romo
Nanoindentation has been used successfully in the determination of the mechanical properties of bone. Its application in fracture healing provides information on the evolution of material properties of the woven bone during regeneration process. However, this technique has not been applied in assessing the mechanical properties of woven bone during distraction osteogenesis. Therefore, the aim of this work is to evaluate the spatial and temporal variations of the elastic modulus of the woven bone generated during the bone transport process...
June 1, 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/28622897/the-efficacy-of-local-autologous-bone-dust-a-systematic-review
#14
Matthew Street, Ryan Gao, Waldron Martis, Jacob Munro, David Musson, Jillian Cornish, John Ferguson
STUDY DESIGN: A systematic review of bone dust as an autologous bone graft to encourage osseous fusion. OBJECTIVE: To identify and review studies that report on the therapeutic potential of bone dust. The research question was structured as follows: populations-animal and human sources of bone dust harvested using burrs; interventions-autologous bone dust compared with other clinically utilized bone graft options; outcomes assessed-(1) in vitro cell viability, cell differentiation, and osteogenic potential and (2) clinical efficacy in the form of fusion rates as assessed using plain radiographs; study designs-in vitro, preclinical in vivo and clinical studies investigating the therapeutic potential of bone dust, harvested by burring, are included in this systematic review...
July 2017: Spine Deformity
https://www.readbyqxmd.com/read/28621591/rates-of-intraoperative-complications-and-conversion-to-laparotomy-during-laparoscopic-ovariectomy-performed-by-veterinary-students-161-cases-2010-2014
#15
Adam M Nylund, Adam Drury, Heather Weir, Eric Monnet
OBJECTIVE To assess rates of intraoperative complications and conversion to laparotomy associated with supervised veterinary students performing laparoscopic ovariectomy in dogs. DESIGN Retrospective case series. ANIMALS 161 female shelter dogs for which elective laparoscopic ovariectomy had been performed by supervised senior (fourth-year) veterinary students from 2010 through 2014. PROCEDURES Medical records of all dogs were reviewed and data collected regarding duration of surgery, surgical complications and other characteristics, and whether conversion to laparotomy was required...
July 1, 2017: Journal of the American Veterinary Medical Association
https://www.readbyqxmd.com/read/28621258/evaluation-of-pain-assessment-techniques-and-analgesia-efficacy-in-a-female-guinea-pig-cavia-porcellus-model-of-surgical-pain
#16
Vanessa L Oliver, Stephanie Athavale, Katherine E Simon, Lon V Kendall, Jean A Nemzek, Jennifer L Lofgren
Guinea pigs (Cavia porcellus) are a frequently used species in research, often involving potentially painful procedures.Therefore, evidence-based recommendations regarding analgesia are critically needed to optimize their wellbeing. Ourlaboratory examined the efficacy of carprofen and extended-release (ER) buprenorphine, alone and as a multimodal combination,for relieving postsurgical pain in guinea pigs. Animals were assessed by using evoked (mechanical hypersensitivity),nonevoked (video ethogram, cageside ethogram, time-to-consumption test), and clinical (weight loss) measurements for 96 h during baseline, anesthesia-analgesia, and hysterectomy conditions...
June 15, 2017: Journal of the American Association for Laboratory Animal Science: JAALAS
https://www.readbyqxmd.com/read/28620824/l-3-n-butylphthalide-activates-akt-mtor-signaling-inhibits-neuronal-apoptosis-and-autophagy-and-improves-cognitive-impairment-in-mice-with-repeated-cerebral-ischemia-reperfusion-injury
#17
Jing Xu, Yaping Huai, Nan Meng, Yanhong Dong, Zhijuan Liu, Qianqian Qi, Ming Hu, Mingyue Fan, Wei Jin, Peiyuan Lv
L-3-n-Butylphthalide (L-NBP) exerts neuroprotective effects in animal models of cerebral ischemia, but its potential benefits in repeated cerebral ischemia-reperfusion (RCIR) injury remain unknown. We investigated the effect of L-NBP on cognitive impairment induced by RCIR in mice. Male C57Bl/6 mice received sham surgery or bilateral common carotid artery occlusion (3 times, 20 min each) and were orally administered preoperative L-NBP (30 mg/kg/day, 7 days), postoperative L-NBP (30 or 60 mg/kg/day, 28 days) or postoperative vehicle (28 days)...
June 15, 2017: Neurochemical Research
https://www.readbyqxmd.com/read/28620644/topical-application-of-mesenchymal-stromal-cells-ameliorated-liver-parenchyma-damage-after-ischemia-reperfusion-injury-in-an-animal-model
#18
Ping Kuen Lam, Charing Ching Ning Chong, Anthony Wing Ip Lo, Anthony Wing Hung Chan, Cindy See Wai Tong, Don Wai Ching Chin, Kenneth Hoi Kin Wong, Richard Kwong Wai Choy, Andrew Kai-Yip Fung, Yi Xiang Wang, Ka Fai To, Paul Bo San Lai
BACKGROUND: Ischemia-reperfusion injury (IRI) is commonly encountered after liver surgery. This study evaluated the hepatoprotective effects of topically applied adipose-derived mesenchymal stromal cells (ADMSCs) on hepatic IRI in a rat model. METHODS: ADMSCs from transgenic green fluorescent protein Sprague-Dawley rats were topically applied to the liver surface of Sprague-Dawley rats after hepatic IRI and fixed in position by fibrin glue (group A, n = 24). An equivalent amount of ADMSCs were administered through the portal (group B, n = 24) or tail vein (group C, n = 24)...
June 2017: Transplantation Direct
https://www.readbyqxmd.com/read/28620274/influence-of-estrogen-modulation-on-glia-activation-in-a-murine-model-of-parkinson-s-disease
#19
Francesca Siani, Rosaria Greco, Giovanna Levandis, Cristina Ghezzi, Francesca Daviddi, Chiara Demartini, Elisabetta Vegeto, Marie-Thérèse Fuzzati-Armentero, Fabio Blandini
Epidemiological data suggest a sexual dimorphism in Parkinson disease (PD), with women showing lower risk of developing PD. Vulnerability of the nigrostriatal pathway may be influenced by exposure to estrogenic stimulation throughout fertile life. To further address this issue, we analyzed the progression of nigrostriatal damage, microglia and astrocyte activation and microglia polarization triggered by intrastriatal injection of dopaminergic neurotoxin 6-hydroxydopamine (6-OHDA) in male, female and ovariectomized (OVX) mice, as well as in OVX mice supplemented with 17βestradiol (OVX+E)...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28617531/controlled-release-mitomycin-c-polylactic-acid-film-prevents-epidural-scar-hyperplasia-after-laminectomy-by-inducing-fibroblast-autophagy-and-regulating-the-expression-of-mirnas
#20
B-B Wang, H Xie, T Wu, N Xie, J Wu, Y Gu, F Tang, J Liu
OBJECTIVE: To design a new controlled-release MMC-PLA film and explore whether and how this film could prevent epidural scar hyperplasia and adhesion in a post-laminectomy rat model. MATERIALS AND METHODS: All procedures were performed under the approval and supervision of the Institutional Animal Care and Use Committee (IACUC) of Nanjing Medical University. A total of 120 Sprague-Dawley (SD) rats were randomly placed into four groups after laminectomy (each group=30 rats)...
May 2017: European Review for Medical and Pharmacological Sciences
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