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https://www.readbyqxmd.com/read/28327868/resveratrol-treatment-normalizes-the-endothelial-function-and-blood-pressure-in-ovariectomized-rats
#1
Victor Fabricio, Jorge Camargo Oishi, Bruna Gabriele Biffe, Leandro Dias Gonçalves Ruffoni, Karina Ana da Silva, Keico Okino Nonaka, Gerson Jhonatan Rodrigues
Background: Despite knowing that resveratrol has effects on blood vessels, blood pressure and that phytostrogens can also improve the endothelium-dependent relaxation/vasodilation, there are no reports of reveratrol's direct effect on the endothelial function and blood pressure of animals with estrogen deficit (mimicking post-menopausal increased blood pressure). Objective: To verify the effect of two different periods of preventive treatment with resveratrol on blood pressure and endothelial function in ovariectomized young adult rats...
February 2017: Arquivos Brasileiros de Cardiologia
https://www.readbyqxmd.com/read/28326799/glomerular-loss-after-renal-radiofrequency-ablation-are-comparable-to-30-minutes-of-warm-ischemia
#2
Leonardo A S Abreu, José A Damasceno-Ferreira, Waldemar S Costa, Marco Aurélio Pereira-Sampaio, Francisco José Sampaio, Diogo B de Souza
PURPOSE: To compare, with stereological methods, the glomerular loss in kidneys submitted to radiofrequency ablation (RFA) or warm ischemia. METHODS: Twenty-six male pigs were divided into three groups. Eight animals were allocated in the sham group, which was submitted to laparoscopic dissection of the left renal hilum, without renal ischemia. Eight animals were allocated in the ischemia group, which had the left renal hilum clamped for 30 minutes under laparoscopic access...
March 22, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28325116/stem-cell-markers-describe-a-transition-from-somatic-to-pluripotent-cell-states-in-a-rat-model-of-endometriosis
#3
Essam Rashad Othman, Fatma Yassine Meligy, Ayat Abdel-Rahman Sayed, Mohamed Ahmed El-Mokhtar, Abeer Mohamed Refaiy
OBJECTIVE: To study Thy1 as a fibroblast marker, SSEA1 as a marker of intermediate pluripotency, and Oct4 as a marker of established pluripotency in rat model of endometriosis. DESIGN: In vivo animal study. MATERIALS AND METHODS: Endometriosis was induced in 20 albino female rats through autologous transplantation of one uterine horn to mesentery of intestine. Other 20 rats had their horn removed without transplantation (controls). Rats were sacrificed 4 weeks after induction surgery...
January 1, 2017: Reproductive Sciences
https://www.readbyqxmd.com/read/28323847/role-of-the-mapks-tgf-%C3%AE-1-traf6-signaling-pathway-in-postoperative-atrial-fibrillation
#4
Daoliang Zhang, Xiaoqing Chen, Qian Wang, Shaohui Wu, Yue Zheng, Xu Liu
OBJECTIVES: To explore the relationship between the MAPKs/TGF-β1/TRAF6 signaling pathway and atrial fibrosis in patients with rheumatic heart disease (RHD) and its role in atrial fibrillation (AF) after cardiac surgery on the basis of our previous animal study of the MAPKs/TGF-β1/TRAF6 signaling pathway in atrial fibrosis. METHODS: A total of 57 patients with RHD without a history of AF consented to left atrial biopsy. Histopathology quantified the percentage of fibrosis, and real-time PCR and western blot assessed the mRNA and protein expression of TGF-β1, TRAF6, and connective tissue growth factor (CTGF), respectively...
2017: PloS One
https://www.readbyqxmd.com/read/28323713/efficacy-of-poly-d-l-lactic-acid-co-glycolic-acid-poly-ethylene-glycol-poly-d-l-lactic-acid-co-glycolic-acid-thermogel-as-a-barrier-to-prevent-spinal-epidural-fibrosis-in-a-postlaminectomy-rat-model
#5
Xiangqian Li, Lin Chen, Hong Lin, Luping Cao, Ji'an Cheng, Jian Dong, Lin Yu, Jiandong Ding
STUDY DESIGN: Experimental animal study. OBJECTIVE: The authors conducted a study to determine the efficacy and safety of the poly(D,L-lactic acid-co-glycolic acid)-poly(ethylene glycol)-poly(D,L-lactic acid-co-glycolic acid) (PLGA-PEG-PLGA) thermogel to prevent peridural fibrosis in an adult rat laminectomy model. SUMMARY OF BACKGROUND DATA: Peridural fibrosis often occurs after spinal laminectomy. It might cause persistent back and/or leg pain postoperatively and make a reoperation more difficult and dangerous...
April 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28323640/a-micro-scale-printable-nanoclip-for-electrical-stimulation-and-recording-in-small-nerves
#6
Charles A Lissandrello, Winthrop F Gillis, Jun Shen, Ben W Pearre, Flavia Vitale, Matteo Pasquali, Bradley J Holinski, Daniel J Chew, Alice E White, Timothy J Gardner
OBJECTIVE: The vision of bioelectronic medicine is to treat disease by modulating the signaling of visceral nerves near various end organs. In small animal models, the nerves of interest can have small diameters and limited surgical access. New high-resolution methods for building nerve interfaces are desirable. In this study, we present a novel nerve interface and demonstrate its use for stimulation and recording in small nerves. APPROACH: We design and fabricate micro-scale electrode-laden nanoclips capable of interfacing with nerves as small as 50 µm in diameter...
March 21, 2017: Journal of Neural Engineering
https://www.readbyqxmd.com/read/28323124/cd44-is-a-key-player-in-non-alcoholic-steatohepatitis
#7
Stéphanie Patouraux, Déborah Rousseau, Stéphanie Bonnafous, Cynthia Lebeaupin, Carmelo Luci, Clémence M Canivet, Anne-Sophie Schneck, Adeline Bertola, Marie-Christine Saint-Paul, Antonio Iannelli, Jean Gugenheim, Rodolphe Anty, Albert Tran, Béatrice Bailly-Maitre, Philippe Gual
BACKGROUND: CD44 is expressed on many immune cells that contribute to inflammation. It has been shown, mainly through animal data, that CD44 regulates adipose tissue inflammation in obesity and hepatic leukocyte recruitment in a lithogenic context. However, its role in hepatic inflammation in a mouse model of steatohepatitis and its relevance in humans have not yet been investigated. METHODS: The role of CD44 was evaluated in CD44-/- mice and after injections of an αCD44 antibody in Wild-type mice challenged with a methionine- and choline-deficient diet (MCDD)...
March 16, 2017: Journal of Hepatology
https://www.readbyqxmd.com/read/28322621/bladder-regeneration-using-multiple-scaffolds-with-growth-factors-in-a-bladder
#8
Luc A J Roelofs, Paul K J D de Jonge, Egbert Oosterwijk, Dorien M Tiemessen, Barbara B Kortmann, Robert P E de Gier, Elly M M Versteeg, Willeke F Daamen, Toin H van Kuppevelt, Paul J Geutjes, Wout Feitz
INTRODUCTION: Tissue engineering may become an alternative to current bladder augmentation techniques. Large scaffolds are needed for clinically significant augmentation, but can result in fibrosis and graft shrinkage. The purpose of this study was to investigate the use of multiple scaffolds instead of one large scaffold, to enhance bladder tissue regeneration and bladder capacity. Secondly, acellular collagen, collagen-heparin, and collagen-heparin scaffolds with growth factors were used and the biological activity of the different scaffolds was compared in a large animal model...
March 21, 2017: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/28321472/feasibility-and-benefits-of-the-ewe-as-a-model-for-vaginal-surgery-training
#9
Yohan Kerbage, Géraldine Giraudet, Chrystèle Rubod, Charles Garabedian, Géraldine Rivaux, Michel Cosson
INTRODUCTION AND HYPOTHESIS: The objective was to evaluate the ewe as an animal model for teaching and training in vaginal surgery. METHODS: Twenty-nine postgraduate surgeons attended a training course on vaginal prolapse surgery. After a review of human and sheep anatomy, the participants performed transvaginal meshes, vaginal hysterectomy, SSLF (Richter), and OAS repair in ewes and human cadavers. Participants completed questionnaires on the whole course. RESULTS: Questionnaires showed the significant superiority of ewes over human cadavers for all items evaluated regarding surgical dissections...
March 20, 2017: International Urogynecology Journal
https://www.readbyqxmd.com/read/28320105/anti-fibrotic-potential-of-human-umbilical-cord-mononuclear-cells-and-mouse-bone-marrow-cells-in-ccl4-induced-liver-fibrosis-in-mice
#10
Nageh Ahmed Elmahdy, Samia Salem Sokar, Mohamed Labib Salem, Naglaa Ibrahim Sarhan, Sherin Hamed Abou-Elela
Liver fibrosis is the consequence of hepatocyte injury that leads to the activation of hepatic stellate cells (HSC). The treatment of choice is Liver transplantation; however, it has many problems such as surgery-related complications, immunological rejection and high costs associated with the procedure. Stem cell-based therapy would be a potential alternative, so the aim of this study is to investigate the therapeutic potential of human umbilical cord mononuclear cells (MNC) and mouse bone marrow cells (BMC) against carbon tetrachloride (CCl4) induced liver fibrosis in mice and compare it with that of silymarin...
March 18, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28319326/altered-defecatory-behaviour-and-faecal-incontinence-in-a-video-tracked-animal-model-of-pudendal-neuropathy
#11
Liam A Devane, Eric Lucking, Judith Evers, Maria Buffini, S Mark Scott, Charles H Knowles, P Ronan O'Connell, James F X Jones
AIMS: To develop a behavioural animal model of faecal continence and assess the effect of retrouterine balloon inflation (RBI) injury. RBI in the rat causes pudendal neuropathy, a risk factor for obstetric related faecal incontinence in humans. METHOD: Video-tracking healthy rats (n=12) in a cage containing a latrine box was used to monitor their defaecatory behaviour index (DBI) over 2 weeks. DBI (range 0 - 1) was devised by dividing the defaecation rate (pellets/hour) outside the latrine by that of the whole cage...
March 20, 2017: Colorectal Disease: the Official Journal of the Association of Coloproctology of Great Britain and Ireland
https://www.readbyqxmd.com/read/28319324/future-of-robotic-surgery-in-urology
#12
Jens J Rassweiler, Riccardo Autorino, Jan Klein, Alex Mottrie, Ali Serdar Goezen, Jens-Uwe Stolzenburg, Koon H Rha, Marc Schurr, Jihad Kaouk, Vipul Patel, Prokar Dasgupta, Evangelos Liatsikos
OBJECTIVES: To provide a comprehensive overview of the current status and future perspectives in the field of robotic systems for urologic surgery. MATERIALS AND METHODS: A non-systematic literature review was performed by using PubMed / Medline search electronic engines. Existing patents for robotic devices were researched using the Google search machine. Findings were critically analyzed also by taking into account personal experience of the authors. RESULTS: Relevant patents of the first generation of the da Vinci platform will expire in 2019...
March 20, 2017: BJU International
https://www.readbyqxmd.com/read/28319118/functional-mri-for-characterization-of-renal-perfusion-impairment-and-edema-formation-due-to-acute-kidney-injury-in-different-mouse-strains
#13
Susanne Tewes, Faikah Gueler, Rongjun Chen, Marcel Gutberlet, Mi-Sun Jang, Martin Meier, Michael Mengel, Dagmar Hartung, Frank Wacker, Song Rong, Katja Hueper
PURPOSE: The purpose was to characterize acute kidney injury (AKI) in C57BL/6 (B6)- and 129/Sv (Sv)-mice by noninvasive measurement of renal perfusion and tissue edema using functional MRI. METHODS: Different severities of AKI were induced in B6- and Sv-mice by renal ischemia reperfusion injury (IRI). Unilateral clamping of the renal pedicle for 35 min (moderate AKI) or 45 min (severe AKI) was done. MRI (7-Tesla) was performed 1, 7 and 28 days after surgery using a flow alternating inversion recovery (FAIR) arterial spin labeling (ASL) sequence...
2017: PloS One
https://www.readbyqxmd.com/read/28318987/a-clinical-evaluation-of-the-pharmacokinetics-and-pharmacodynamics-of-intravenous-alfaxalone-in-cyclodextrin-in-male-and-female-rats-following-a-loading-dose-and-constant-rate-infusion
#14
Kate L White, Stuart Paine, John Harris
OBJECTIVE: To characterise, as a clinical study, the pharmacokinetics and pharmacodynamics and describe the hypnotic effect of the neurosteroid alfaxalone (3α-hydroxy-5 α-pregnane-11, 20-dione) formulated with 2-hydroxypropyl-β-cyclodextrin in male and female rats. STUDY DESIGN: Prospective, experimental laboratory study. ANIMALS: A total of 12 (six male and six female) adult, aged-matched Sprague Dawley rats. METHODS: Surgery and instrumentation was performed under isoflurane anaesthesia in an oxygen/nitrous oxide mixture (1:2) and local anaesthetic infiltration...
February 1, 2017: Veterinary Anaesthesia and Analgesia
https://www.readbyqxmd.com/read/28318924/aged-rats-under-zoledronic-acid-therapy-and-oral-surgery
#15
Mariza Akemi Matsumoto, Elisa Mara de Abreu Furquim, Alaíde Gonçalves, Joel Ferreira Santiago-Júnior, Patrícia Pinto Saraiva, Camila Lopes Cardoso, Marcelo Salles Munerato, Roberta Okamoto
INTRODUCTION: Aging brings a number of health conditions that can compromise the healing process in elderly individuals, significantly when it comes to bone tissue. The aim of the present study was to analyze the effects of zoledronic acid (ZL) therapy on socket healing of aged male rats. MATERIALS AND METHODS: Twenty-four Wistar male rats, 20 months old, underwent surgical procedures for the extraction of the upper right incisor and were divided into two groups according to the treatment: Control (C) - intravenous (IV) 0...
February 17, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28318917/radiological-changes-with-magnetic-resonance-imaging-and-computed-tomography-after-irradiating-minipig-mandibles-the-role-of-t2-spir-mixed-signal-intensities-in-the-detection-of-osteoradionecrosis
#16
Lucas J Poort, Alida A Postma, Annika A R Stadler, Roland A Böckmann, Frank J Hoebers, Peter A W H Kessler
PURPOSE: Radiotherapy in the head and neck can induce several radiologically detectable changes in bone, osteoradionecrosis (ORN) among them. The purpose is to investigate radiological changes in mandibular bone after irradiation with various doses with and without surgery and to determine imaging characteristics of radiotherapy and ORN in an animal model. MATERIALS AND METHODS: Sixteen Göttingen minipigs were divided into groups and were irradiated with two fractions with equivalent doses of 0, 25, 50 and 70 Gray...
February 12, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28318850/safety-and-efficacy-of-hyperosmolar-irrigation-solution-in-shoulder-arthroscopy
#17
Nicholas M Capito, James L Cook, Bernardo Yahuaca, Marie D Capito, Seth L Sherman, Matthew J Smith
BACKGROUND: A hyperosmolar irrigation solution has been reported to be safe and have potential benefits for use during shoulder arthroscopy in an animal model study. In this study, the clinical effects of a hyperosmolar solution were compared with a standard isotonic solution when used for shoulder arthroscopy. METHODS: A prospective, double-blind, randomized controlled trial was performed to compare isotonic (273 mOsm/L) and hyperosmolar (593 mOsm/L) irrigation solutions used for arthroscopic rotator cuff repair...
March 15, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28315572/protective-effects-of-cucurbitacin-b-on-acute-lung-injury-induced-by-sepsis-in-rats
#18
Shu Hua, Xing Liu, Shuguang Lv, Zhifang Wang
BACKGROUND The aim of this study was to investigate the protective effects of cucurbitacin B (CuB) on sepsis-induced acute lung injury (ALI) in rats. MATERIAL AND METHODS An ALI model was made by cecal ligation and puncture (CLP) in SD rats. Rats were randomly divided into 5 groups (n=15 per group): animals undergoing a sham CLP (sham group); animals undergoing CLP (CLP control group); animals undergoing CLP and treated with CuB at 1 mg/kg of body weight (bw) (low-dose CuB [L-CuB] group), animals undergoing CuB at 2 mg/kg of bw (mid-dose CuB [M-CuB] group); and animals undergoing CuB at 5 mg/kg of bw (high-dose CuB [H-CuB] group)...
March 18, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28315202/validation-of-bevacizumab-therapy-effect-on-colon-cancer-subtypes-by-using-whole-body-imaging-in-mice
#19
Ivan Vuletic, Kedi Zhou, Hui Li, Huichen Bai, Xiangxi Meng, Sihao Zhu, Yichen Ding, Jun Li, Hongfang Sun, Qiushi Ren
PURPOSE: Preclinical imaging offers a useful tool for monitoring cancer biological behavior and therapy in vivo without the necessity of animal surgery. The following paper describes our examination of tumor progress and anti-angiogenic therapy with Bevacizumab on colon cancer subtypes (SW480 and SW620) by using different non-invasive real-time in vivo imaging techniques. PROCEDURES: Color Doppler ultrasound imaging (CDUI) was used to observe the formation of new blood vessels; a homemade fluorescence reflectance imaging (FRI) apparatus was mainly used to test the difference in VEGFR2 expression between the tumor subtypes...
March 17, 2017: Molecular Imaging and Biology: MIB: the Official Publication of the Academy of Molecular Imaging
https://www.readbyqxmd.com/read/28314888/youtube-provides-poor-information-regarding-anterior-cruciate-ligament-injury-and-reconstruction
#20
J T Cassidy, E Fitzgerald, E S Cassidy, M Cleary, D P Byrne, B M Devitt, J F Baker
PURPOSE: YouTube is a global medium used predominantly by young adults (aged 18-49 years). This study examined the quality of YouTube information regarding ACL injury and reconstruction. METHODS: YouTube was searched on the 13th of June 2015 for "ACL" and "anterior cruciate ligament" with/without associated terms of "injury", "reconstruction", and "surgery". Videos were evaluated by two independent reviewers [EF (Reviewer 1), (Reviewer 2)] using two recognized information scoring systems (Modified DISCERN (MD) 0-5 and JAMA Benchmark 0-4) and an adaptation of a score designed for written ACL information [ACL Specific Score (ASS) 0-25]...
March 17, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
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