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425篇 您的检索式:作者名="SMYTH G"
    题名 作者 年代 出处 被引量
1Establishing proof of concept:Platelet-rich plasma and bone marrow aspirate concentrate may improve cartilage repair following surgical treatment for osteochondral lesions of the talus显示文摘Osteochondral lesions of the talus are common injuries in the athletic patient. They present a challenging clinical problem as cartilage has a poor potential for healing. Current surgical treatments consist of reparative(microfracture) or replacement(autologous osteochondral graft) strategies and demonstrate good clinical outcomes at the short and medium term follow-up. Radiological findings and second-look arthroscopy however, indicate possible poor cartilage repair with evidence of fibrous infill and fissuring of the regenerative tissue following microfracture. Longer-term follow-up echoes these findings as it demonstrates a decline in clinical outcome. The nature of the cartilage repair that occurs for an osteochondral graft to become integrated with the native surround tissue is also of concern. Studies have shown evidence of poor cartilage integration,with chondrocyte death at the periphery of the graft, possibly causing cyst formation due to synovial fluid ingress. Biological adjuncts, in the form of platelet-rich plasma(PRP) and bone marrow aspirate concentrate(BMAC), have been investigated with regard to their potential in improving cartilage repair in both in vitro and in vitro settings. The in vitro literature indicates that these biological adjuncts may increase chondrocyte proliferation as well as synthetic capability, while limiting the catabolic effects of an inflammatory joint environment. These findings have been extrapolated to in vitro animal models, with results showing that both PRP and BMAC improve cartilage repair. The basic science literature therefore establishes the proof of concept that biological adjuncts may improve cartilage repair when used in conjunction with reparative and replacement treatment strategies for osteochondral lesions of the talus.Niall A Smyth Christopher D Murawski Amgad M Haleem Charles P Hannon Ian Savage-Elliott John G Kennedy 2012World Journal of Orthopedics2012,3,7:8
2Platelet-rich plasma increases transforming growth factor-beta1 expression at graft-host interface following autologous osteochondral transplantation in a rabbit model显示文摘AIM: To explore the effect of platelet-rich plasma on protein expression patterns of transforming growth factor-beta1(TGF-β1) in cartilage following autologous osteochondral transplantation(AOT) in a rabbit knee cartilage defect model.METHODS: Twelve New Zealand white rabbits received bilateral AOT. In each rabbit, one knee was randomized to receive an autologous platelet rich plasma(PRP) injection and the contralateral knee received saline injection. Rabbits were euthanized at 3, 6 and 12 wk post-operatively. Articular cartilage sections were stained with TGF-β1 antibody. Histological regions of interest(ROI)(left, right and center of the autologous grafts interfaces) were evaluated using Meta Morph. Percentage of chondrocytes positive for TGF-β1 was then assessed.RESULTS: Percentage of chondrocytes positive for TGF-β1 was higher in PRP treated knees for selected ROIs(left; P = 0.03, center; P = 0.05) compared to control and was also higher in the PRP group at each post-operative time point(P = 6.6 × 10^(-4), 3.1 × 10^(-4) and 7.3 × 10^(-3) for 3, 6 and 12 wk, respectively). TGF-β1 expression was higher in chondrocytes of PRP-treated knees(36% ± 29% vs 15% ± 18%)(P = 1.8 × 10^(-6)) overall for each post-operative time point and ROI. CONCLUSION: Articular cartilage of rabbits treated with AOT and PRP exhibit increased TGF-β1 expression compared to those treated with AOT and saline. Our findings suggest that adjunctive PRP may increase TGF-β1 expression, which may play a role in the chondrogenic effect of PRP in vivo.Lorraine A Boakye Keir A Ross John M Pinski Niall A Smyth Amgad M Haleem Charles P Hannon Lisa A Fortier John G Kennedy 2015World Journal of Orthopedics2015,6,11:7
3Football injuries of the ankle: A review of injury mechanisms, diagnosis and management显示文摘Football is the most popular sport worldwide and is associated with a high injury rate, most of which are the result of trauma from player contact. Ankle injuries are among the most commonly diagnosed injuries in the game. The result is reduced physical activity and endurance levels, lost game time, and considerable medical cost. Sports medicine professionals must employ the correct diagnostic tools and effective treatments and rehabilitation protocols to minimize the impact of these injuries on the player. This review examines the diagnosis, treatment, and postoperative rehabilitation for common football injuries of the ankle based on the clinical evidence provided in the current literature.Raymond J Walls Keir A Ross Ethan J Fraser Christopher W Hodgkins Niall A Smyth Christopher J Egan James Calder John G Kennedy 2016World Journal of Orthopedics2016,7,1:5
4A modified Prony algorithmfor exponential function fitting显示文摘Osborne M R Smyth G 1995SIAM J Comput1995,16,:2
5A simple fast hybrid pattern-matching algorithm 显示文摘FRANEK F JENNINGS C G SMYTH P W F 2007Journal of Discrete Algorithms2007,4,5:1
6Identification and functional signigicance of genes regulated by structurally different histone deacetylase inhibitors显示文摘Peart MJ Smyth G Van LR 2005Proc Natl Acad Sci USA2005,102,10:1
7Antiestrogen therapy is active in selected ovarian cancer cases:the use of letrozole in estrogen re- ceptor-positive patients 显示文摘Smyth JF Gourley C Walker G 2007Clinical cancer research : an official journal of the American Association for Cancer Research2007,13,12:1
8Myocardialnecrosis induced by temporary occlusion of coronary atery in the dog 显示文摘Jennings R B Sommers H M Smyth G A 1960Arch Pathol1960,70,1:1
9Fate of steroid estrogens in Australian inland and coastal wastewater treatment plants 显示文摘BRAGA O SMYTHE G A FEITZ A J S 2005Environ Sci Technol2005,39,9:1
10Simultaneous Determination of Products and Intermediates of L-DOPA Oxidation Using CapillaryElectrophoresis with Diode-Array Detection显示文摘Robinson G M Smyth M R 1997Analyst1997,122,:1
11Nitric oxide production and heart failure显示文摘Winlaw D S Smythe G A Keogh A M 1993Lancet1993,341,2:1
12Fate of steroid estrogens in Australian inland and coastal wastewater treatment plants 显示文摘Braga O Smythe G A Schafer A I 2005Environmental Science Technology2005,39,9:1
13An inventory based analy- sis of Canada's managed forest carbon dynamics, 1990 to 2008 显示文摘Stinson G Kurz W A Smyth C E 2011Global Change Biology2011,17,6:1
14Glucocorticoid pretreatment induces eytokine over expression and nuclear facto-β activation in macrophages显示文摘Smyth G P Stapleton P P Freeman T A 2004J Surg Res2004,11,:1
15A Simple Fast Hybrid Pattern-matching Algorithm显示文摘Franek F Jennings C G Smyth P W F 2007Journal of Discrete Algorithms2007,4,5:1
16Temperature-regulated expression of the tac/lacl system for overproduction of a fungal xylanase in Escherichia coli 显示文摘Xue G P Johnson D J Smyth D J 1996Appl Microbiol Biotechnol1996,45,:1
17Antimicrobial resistance in non- typhoidal Salmonellas from humans in Northern Ireland, 2001-2003: standardization needed for better epidemiological monitoring 显示文摘Ong G Wilson I Smyth B 2007Epidemiol Infet2007,135,4:1
18Study of the white-rot fungal degradation of selected phthalocyanine dyes by capillary electrophoresis and liquid chromatography显示文摘A Conneely W F Smyth G McMullan 2002Analytica Chimica Acta2002,451,2:1
19The use of adenosine triphosphate biol to assess the efficacy of a modified cleaning program implemented within an intensive care setting 显示文摘Moore G Smyth D Singleton J 2010Am J Infect Control2010,38,8:1
20Nonstoichiometric Disorder in Single- crystalline BaTiO3 at Elevated Temperature 显示文摘Error N G Smyth D M 1978J Solid State Chem1978,24,34:1
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