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Zhang R, Wang T, Xie C, Lin X, Jiang Z, Wang Z, Liu Y, Luo Y, Long C, He L, Wang P, Gao Q. Evaluation of supporting role of a foldable capsular vitreous body with magnetic resonance imaging in the treatment of severe retinal detachment in human eyes. Eye (Lond) 2011; 25:794-802. [PMID: 21423138 DOI: 10.1038/eye.2011.61] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
PURPOSE To determine the supporting role of a novel foldable capsular vitreous body (FCVB) with magnetic resonance imaging (MRI) in the treatment of severe retinal detachment in human eyes. METHODS The study examined nine eyes of nine patients. Among the nine eyes, five had suffered penetrating injuries while four had suffered contusions of the eyeball involving large defects of the retina or choroids. A standard three-port pars plana vitrectomy was performed, FCVB was triple-folded and sent into the vitreous cavity; balanced salt solution (BSS) was injected into the capsule to support the retina. Three cardinal axes of nine eyes were examined using MRI at baseline and at the 3-month follow up. RESULTS MRI revealed that the signal intensity of the FCVB was similar to the normal vitreous body, with low-signal intensity on T1-weighted image and high-signal intensity on T2-weighted image. In three pre-operative silicone oil- or heavy silicone oil-filled eyes, FCVBs were not fully inflated, and eyeball deformation was observed in one eye. Shifts of three cardinal axes of three eyes (horizontal, anteroposterior, and vertical) according to MRI, were -4.33, -4.67, and -2.67 mm. In the remaining six eyes, FCVBs were well distributed in the vitreous cavity and evenly supported the retina; the cardinal axes of the eyes were similar to pre-operation. Shifts of three cardinal axes of six eyes were -0.34, -0.34, and -0.34 mm. In a total of nine eyes, shifts of three cardinal axes were -1.67, -1.77, and -1.11 mm. Statistically significant difference showed only between the horizontal axis of nine eyes pre-operatively and post-operatively (P1=0.041, P2=0.058, P3=0.123). CONCLUSION This study demonstrated the effectiveness of MRI to monitor the supporting role of an FCVB in the treatment of severe retinal detachment in human eyes.
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Cao P, Wang B, Zhang Y, You X, Gao Q, Cui Y, Liu Z. TSLP Signaling and TH2-type Inflammation is Enhanced in Eosinophilic but not Noneosinophilic Nasal Polyps. J Allergy Clin Immunol 2011. [DOI: 10.1016/j.jaci.2010.12.557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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253
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Gao Q, Niti M, Feng L, Yap KB, Ng TP. Omega-3 polyunsaturated fatty acid supplements and cognitive decline: Singapore Longitudinal Aging Studies. J Nutr Health Aging 2011; 15:32-5. [PMID: 21267519 DOI: 10.1007/s12603-011-0010-z] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
OBJECTIVE To determine the association between long chain omega-3 polyunsaturated fatty acid (n-3 PUFA) supplements intake and cognitive decline in an older Chinese population. DESIGN Prospective cohort study. SETTING The Singapore Longitudinal Aging Studies (SLAS), a community-based study in urban region of Singapore. PARTICIPANTS 1,475 Chinese adults aged ≥ 55 years. MEASUREMENT Omega-3 PUFA supplements intake and Mini-Mental State Examination (MMSE) were assessed at baseline. MMSE was re-assessed at a median of 1.5 years after baseline and cognitive decline was defined as at least 2-points drop in MMSE score from baseline to follow-up. Odds ratios (ORs) of association between n-3 PUFA supplements intake and cognitive decline were calculated in logistic regression models controlling for baseline confounding variables. RESULTS Daily n-3 PUFA supplements intake was significantly (p=0.024) associated with lower risk of cognitive decline (OR=0.37, 95% C.I. 0.16-0.87) after controlling for age, gender, education, number of medical comorbidity, the presence of vascular risk factors/diseases, smoking, alcohol drinking, depression, APOE e4 allele carrier status, nutritional status, level of leisure activities, baseline MMSE and length of follow-up. The association remained significant (p=0.015) after excluding participants with baseline cognitive impairment (MMSE < 24), diabetes, stroke, and cardiac diseases (OR=0.23, 95% C.I. 0.07-0.75). No statistically significant association (OR=1.02, 95% C.I. 0.81-1.27) of fish consumption with cognitive decline was found. CONCLUSION Daily n-3 PUFA supplements consumption was independently associated with less cognitive decline in elderly Chinese.
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Asthana A, Shokuhfar T, Gao Q, Heiden PA, Friedrich C, Yassar RS. A Real Time Observation of Phase Transition of Anatase TiO 2 Nanotubes Into Rutile Nanoparticles by In-Situ Joule Heating Inside Transmission Electron Microscope. ACTA ACUST UNITED AC 2010. [DOI: 10.1166/asl.2010.1191] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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255
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Xiao FS, Wang YP, Yan W, Chang MX, Yao WJ, Xu QQ, Wang XX, Gao Q, Nie P. Ig heavy chain genes and their locus in grass carp Ctenopharyngodon idella. FISH & SHELLFISH IMMUNOLOGY 2010; 29:594-599. [PMID: 20558301 DOI: 10.1016/j.fsi.2010.06.004] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2010] [Revised: 05/24/2010] [Accepted: 06/01/2010] [Indexed: 05/29/2023]
Abstract
The cDNA and genomic sequences of IgD and IgZ were characterized in grass carp Ctenopharyngodon idella in the present study, and with the identification of a BAC clone covering zeta, mu, and delta genes, the IgH locus containing these Ig genes and other V, D, J genes was also illustrated in this fish. Secretory and membrane-bound IgZ were identified, with two transmembrane exons spliced within the CH4 exon, as reported in IgM of mammals and IgZ in other teleost fish. The first and second constant domains of IgZ shows more than 90% nucleotide identity with respective domains of grass carp IgM. The IgD has a structure of delta1-(delta2-delta3-delta4)(2)-delta5-delta6-delta7-TM-UTR, with the repeat of delta2-delta3-delta4; but intron was not found between the two repeat, i.e. between the first delta2-delta3-delta4 (delta2.1-delta3.1-delta4.1) and the second delta2-delta3-delta4 (delta2.2-delta3.2-delta4.2), and the intron between delta3.1 and delta4.1 was much shorter than the intron between delta3.2 and delta4.2. The genomic organization of the IgH locus has a pattern of Vn-Dn-Jn-Czeta-Dn-Jn-Cmu-Cdelta, as reported in other teleost fish. Thirteen V(H), fourteen D, and twelve J(H) genes were observed in this locus, with the similarity of three D segments and four J(H) segments being the same in the upstream of Czeta and Cmu. The transcriptional enhancer located at the mu-delta intergenic region was also analyzed and it seems possible that this enhancer is functional as verified in zebrafish and channel catfish.
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Hu LW, Gong HZ, Jun Yu D, Gao Q, Gao N, Wang M, Yan Y, Wang Y, Yu J, Liu Y. Diurnal variations in solar ultraviolet radiation on horizontal and vertical plane. IRANIAN JOURNAL OF PUBLIC HEALTH 2010; 39:70-81. [PMID: 23113025 PMCID: PMC3481625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/22/2009] [Accepted: 06/09/2010] [Indexed: 11/17/2022]
Abstract
BACKGROUND In general, measurements of solar ultraviolet (UV) radiation are related to horizontal surfaces. While the humans walking and standing outdoors expose to the natural solar UV radiation, their eyes, cheeks, extremities, trunks, or many other anatomical sites are close to vertical plane and random orient to different directions. In this study, we characterized the diurnal variations in solar UV on horizontal and vertical plane which may be helpful to obtain more relevant information on UV exposure of humans. METHODS The UV exposure on vertical and horizontal plane were measured using Solar-UV Sensors in Shenyang (41°51″N, 123°27″E) and Sanya (18°19'N, 109°42'E), PR China. RESULTS As the well known, the diurnal variations in solar UV on horizontal plane in a sunny day exhibited unimodal distributions, reached a single UV peak exposure at around solar noon. However, the diurnal variations on vertical plane presented bimodal distributions, with two peaks in summer in Shenyang and Sanya, and a unimodal distribution in winter in Shenyang. In spring and autumn in Shenyang, the UV exposure around noon were slightly flat with no significant peaks but relative high. When the Solar Elevation Angle (SEA) is about 40°, the vertical plane may potentially receiving maximal unweighted total solar UV radiation exposures. CONCLUSION The results potentially showed that the protection of some vertical and near-vertical anatomical sites of human body from high UV exposure should not only focused on the periods of before and after noon especially in high SEA places.
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Sun J, Gao Q, Zhang J, Bao L, Dong H, Liang N, Li G, Li Z, Gao Y. Ephrinb3 induces mesostriatal dopaminergic projection to the striatum. Biochem Biophys Res Commun 2010; 400:194-9. [DOI: 10.1016/j.bbrc.2010.08.027] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2010] [Accepted: 08/07/2010] [Indexed: 12/26/2022]
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Mao QY, Dong CH, Li XL, Gao Q, Yu X, Li N, Liang ZL, Li FX, Wang JZ. PP-087 The study of cross-neutralization capacity for three EV71 strains. Int J Infect Dis 2010. [DOI: 10.1016/s1201-9712(10)60155-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Gao Q, Ma LL, Gao X, Yan W, Williams P, Yin DP. TLR4 mediates early graft failure after intraportal islet transplantation. Am J Transplant 2010; 10:1588-96. [PMID: 20642685 DOI: 10.1111/j.1600-6143.2010.03151.x] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
We have previously shown that islet emboli in the portal vein block blood flow and induce local inflammatory reaction, resulting in functional loss of islet grafts following intraportal transplantation. This study was designed to test whether Toll-like receptor (TLR) activation mediates early islet graft failure. Syngeneic islet grafts were transplanted into chemically induced diabetic mice, and TLR deficient mice were used as donors and/or recipients of islet grafts. Islet viability, proinflammatory cytokines, high-mobility group box-1 (HMGB1) and NF-kappaB activation were analyzed by bioluminesce imaging (BLI), quantitative RT-PCR (qRT-PCR) and histology. Early islet graft failure was observed in mice with intraportal islet engrafts with increased proinflammatory cytokines, HMGB1 expression, NF-kappaB activation, caspase-3 and TUNEL positive cells. Deficiency of TLR4 in donor, but not in recipient, inhibited NF-kappaB activation, reduced proinflammatory cytokines and improved viability of islet grafts. Blockade of HMGB1 with anti-HMGB1 monoclonal antibody (mAb, 2g7) inhibited inflammatory reactions, as evidenced by reduced TNFalpha and IL-1ss production, and improved islet viability. We conclude that TLR4 activation mediates early graft failure following intraportal islet transplantation. Inhibition of TLR4 activation represents a novel strategy to attenuate early graft failure following intraportal islet transplantation.
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Fahrenkrug SC, Blake A, Carlson DF, Doran T, Van Eenennaam A, Faber D, Galli C, Gao Q, Hackett PB, Li N, Maga EA, Muir WM, Murray JD, Shi D, Stotish R, Sullivan E, Taylor JF, Walton M, Wheeler M, Whitelaw B, Glenn BP. Precision genetics for complex objectives in animal agriculture. J Anim Sci 2010; 88:2530-9. [PMID: 20228236 PMCID: PMC7109650 DOI: 10.2527/jas.2010-2847] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Indirect modification of animal genomes by interspecific hybridization, cross-breeding, and selection has produced an enormous spectrum of phenotypic diversity over more than 10,000 yr of animal domestication. Using these established technologies, the farming community has successfully increased the yield and efficiency of production in most agricultural species while utilizing land resources that are often unsuitable for other agricultural purposes. Moving forward, animal well-being and agricultural sustainability are moral and economic priorities of consumers and producers alike. Therefore, these considerations will be included in any strategy designed to meet the challenges produced by global climate change and an expanding world population. Improvements in the efficiency and precision of genetic technologies will enable a timely response to meet the multifaceted food requirements of a rapidly increasing world population.
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Kang JH, Gao Q, Joyce HJ, Tan HH, Jagadish C, Kim Y, Choi DY, Guo Y, Xu H, Zou J, Fickenscher MA, Smith LM, Jackson HE, Yarrison-Rice JM. Novel growth and properties of GaAs nanowires on Si substrates. NANOTECHNOLOGY 2010; 21:035604. [PMID: 19966397 DOI: 10.1088/0957-4484/21/3/035604] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Straight, vertically aligned GaAs nanowires were grown on Si(111) substrates coated with thin GaAs buffer layers. We find that the V/III precursor ratio and growth temperature are crucial factors influencing the morphology and quality of buffer layers. A double layer structure, consisting of a thin initial layer grown at low V/III ratio and low temperature followed by a layer grown at high V/III ratio and high temperature, is crucial for achieving straight, vertically aligned GaAs nanowires on Si(111) substrates. An in situ annealing step at high temperature after buffer layer growth improves the surface and structural properties of the buffer layer, which further improves the morphology of the GaAs nanowire growth. Through such optimizations we show that vertically aligned GaAs nanowires can be fabricated on Si(111) substrates and achieve the same structural and optical properties as GaAs nanowires grown directly on GaAs(111)B substrates.
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Gao Q, Tong W, Luria JS, Wang Z, Nussenbaum B, Krebsbach PH. Effects of bone morphogenetic protein-2 on proliferation and angiogenesis in oral squamous cell carcinoma. Int J Oral Maxillofac Surg 2010; 39:266-71. [PMID: 20074910 DOI: 10.1016/j.ijom.2009.11.015] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2008] [Revised: 11/13/2009] [Accepted: 11/20/2009] [Indexed: 10/20/2022]
Abstract
Experimental data and limited patient experience suggest that rhBMP-2 can be used to regenerate bone in acquired segmental defects of the mandible. Most of these defects are caused by resection of oral squamous cell carcinoma (OSCC) and the biologic effects of rhBMP-2 on these carcinoma cells are unknown. The objective of this study was to determine whether rhBMP-2 produces adverse effects on proliferation and angiogenesis in OSCC, two biologic processes critical to tumor formation. In vitro studies included treating OSCC cells with rhBMP-2 or an adenoviral vector containing the cDNA for BMP-2. In vivo studies involved co-transplantation of OSCC cells with bone marrow stromal cells genetically modified to over express BMP-2, to mimic a clinically relevant scenario for regenerating bone using cell-based therapy in a wound containing microscopic residual disease. Proliferation, as measured by a MTT assay in vitro and tumor growth in vivo was not affected by treatment with BMP-2. Angiogenesis, measured by secretion of the proangiogenic molecules VEGF and IL-8 in vitro and microvessel density in vivo, was not affected. Exposure of OSCC cells to BMP-2 does not stimulate proliferation or angiogenesis. Further studies are needed before using rhBMP-2 for bone tissue engineering in oral cancer-related defects.
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Gao Q, Lu J, Huo Y, Baby N, Ling E, Dheen S. NG2, a member of chondroitin sulfate proteoglycans family mediates the inflammatory response of activated microglia. Neuroscience 2010; 165:386-94. [DOI: 10.1016/j.neuroscience.2009.10.022] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2009] [Revised: 10/12/2009] [Accepted: 10/12/2009] [Indexed: 02/06/2023]
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Zheng J, Zhang H, Chao Y, Xu Y, Peng B, Yan Y, Gao Q. UP-2.187: Long Follow-Up Study of Original Orthotopic Ileal Neobladder Reconstruction in 61 Patients with Bladder Cancer. Urology 2009. [DOI: 10.1016/j.urology.2009.07.406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Lv D, Wang X, Song H, Gao Q, Yan L, Wu J, Shi Y, Li Z, Li L. 6018 Multimodal preoperative evaluation in surgical decision-making for rectal cancer: a randomized controlled trial. EJC Suppl 2009. [DOI: 10.1016/s1359-6349(09)71113-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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Gao Q, Nie P, Thompson KD, Adams A, Wang T, Secombes CJ, Zou J. The search for the IFN-gamma receptor in fish: Functional and expression analysis of putative binding and signalling chains in rainbow trout Oncorhynchus mykiss. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2009; 33:920-31. [PMID: 19454334 DOI: 10.1016/j.dci.2009.03.001] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2008] [Revised: 03/02/2009] [Accepted: 03/05/2009] [Indexed: 05/27/2023]
Abstract
Interferons (IFNs), consisting of three major subfamilies, type I, type II (gamma) and type III (lambda) IFN, activate vertebrate antiviral defences once bound to their receptors. The three IFN subfamilies bind to different receptors, IFNAR1 and IFNAR2 for type I IFNs, IFNgammaR1 and IFNgammaR2 for type II IFN, and IL-28R1 and IL-10R2 for type III IFNs. In fish, although many types I and II IFN genes have been cloned, little is known about their receptors. In this report, two putative IFN-gamma receptor chains were identified and sequenced in rainbow trout (Oncorhynchus mykiss), and found to have many common characteristics with mammalian type II IFN receptor family members. The presented gene synteny analysis, phylogenetic tree analysis and ligand binding analysis all suggest that these molecules are the authentic IFNgammaRs in fish. They are widely expressed in tissues, with IFNgammaR1 typically more highly expressed than IFNgammaR2. Using the trout RTG-2 cell line it was possible to show that the individual chains could be differentially modulated, with rIFN-gamma and rIL-1beta down regulating IFNgammaR1 expression but up regulating IFNgammaR2 expression. Over-expression of the two receptor chains in RTG-2 cells revealed that the level of IFNgammaR2 transcript was crucial for responsiveness to rIFN-gamma, in terms of inducing gammaIP expression. Transfection experiments showed that the two putative receptors specifically bound to rIFN-gamma. These findings are discussed in the context of how the IFNgammaR may bind IFN-gamma in fish and the importance of the individual receptor chains to signal transduction.
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Ma Y, Wang Y, Yang Z, Gao Q, Cheng Z, Qin H. The catenulaform of neuroblastoma. Postgrad Med J 2009; 85:336. [PMID: 19528312 DOI: 10.1136/pgmj.2008.072736] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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268
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Paiman S, Gao Q, Tan HH, Jagadish C, Pemasiri K, Montazeri M, Jackson HE, Smith LM, Yarrison-Rice JM, Zhang X, Zou J. The effect of V/III ratio and catalyst particle size on the crystal structure and optical properties of InP nanowires. NANOTECHNOLOGY 2009; 20:225606. [PMID: 19436086 DOI: 10.1088/0957-4484/20/22/225606] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
InP nanowires were grown on 111B InP substrates by metal-organic chemical vapour deposition in the presence of colloidal gold particles as catalysts. Transmission electron microscopy and photoluminescence measurements were carried out to investigate the effects of V/III ratio and nanowire diameter on structural and optical properties. Results show that InP nanowires grow preferably in the wurtzite crystal structure than the zinc blende crystal structure with increasing V/III ratio or decreasing diameter. Additionally, time-resolved photoluminescence (TRPL) studies have revealed that wurtzite nanowires show longer recombination lifetimes of approximately 2500 ps with notably higher quantum efficiencies.
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Wang CN, Song XY, Gao Q, Wang F, Liu P, Wu YN. Dietary exposure to lead by children and adults in the Jinhu area of China. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2009; 26:821-8. [DOI: 10.1080/02652030802714000] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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270
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Paladugu M, Zou J, Guo YN, Zhang X, Joyce HJ, Gao Q, Tan HH, Jagadish C, Kim Y. Evolution of Wurtzite Structured GaAs Shells Around InAs Nanowire Cores. NANOSCALE RESEARCH LETTERS 2009; 4:846-849. [PMID: 20596432 PMCID: PMC2893864 DOI: 10.1007/s11671-009-9326-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2009] [Accepted: 04/22/2009] [Indexed: 05/28/2023]
Abstract
GaAs was radially deposited on InAs nanowires by metal-organic chemical vapor deposition and resultant nanowire heterostructures were characterized by detailed electron microscopy investigations. The GaAs shells have been grown in wurtzite structure, epitaxially on the wurtzite structured InAs nanowire cores. The fundamental reason of structural evolution in terms of material nucleation and interfacial structure is given.
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Chen D, Ge J, Wang L, Gao Q, Ma P, Li N, Li DQ, Wang Z. A simple and evolutional approach proven to recanalise the nasolacrimal duct obstruction. Br J Ophthalmol 2009; 93:1438-43. [PMID: 19416937 PMCID: PMC2760725 DOI: 10.1136/bjo.2008.149393] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Aim: To evaluate a new approach of recanalisation of nasolacrimal duct obstruction (RC-NLDO) in the treatment of the nasolacrimal duct obstruction (NLDO) and chronic dacryocystitis. Methods: 583 patients with 641 eyes suffering from NLDO and chronic dacryocystitis were enrolled in this study. The RC-NLDO was performed in 506 eyes, with 135 eyes undergoing external dacryocystorhinostomy (EX-DCR) as controls. Patient follow-up for 54 months was evaluated by symptoms, dye disappearance test, lacrimal irrigation and digital subtraction dacryocystogram. The RC-NLDO was also performed in 12 rhesus monkeys for histopathological examination. Results: The clinical success rates were 93.1% in 506 cases of RC-NLDO and 91.11% in 135 cases of EX-DCR. The success rates for second surgery were achieved in 85.19% on RC-NLDO and 40.0% on EX-DCR. No major intra- or postoperative complications were observed in the RC-NLDO group. The mean operative duration was 12.5 min for RC-NLDO and 40.3 min for EX-DCR (p<0.001). A pathological study in rhesus monkeys demonstrated that the RC-NLDO wounded epithelium in nasolacrimal duct healed completely within 1 month without granulation tissue formation. Conclusion: The findings demonstrate that the RC-NLDO is a simple and effective approach proven to recanalise the obstructed nasolacrimal duct with a comparable success rate to EX-DCR.
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Gao Q, Zhang Y, Dong J, Wang L, Wang X, Xuan M, Wang C, Wen Y. Effects of bone morphogenetic protein-2 on human salivary gland adenoid cystic carcinoma cells. Int J Oral Maxillofac Surg 2009. [DOI: 10.1016/j.ijom.2009.03.107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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273
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Wen Z, Qu Q, Gao Q, Zheng X, Hu Z, Wu Y, Liu Y, Wang X. An activated carbon with high capacitance from carbonization of a resorcinol–formaldehyde resin. Electrochem commun 2009. [DOI: 10.1016/j.elecom.2009.01.015] [Citation(s) in RCA: 110] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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274
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Ye Y, Wei J, Dai X, Gao Q. Computational studies of the binding modes of A 2A adenosine receptor antagonists. Amino Acids 2008; 35:389-96. [PMID: 17978889 PMCID: PMC7087644 DOI: 10.1007/s00726-007-0604-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2007] [Accepted: 09/12/2007] [Indexed: 11/25/2022]
Abstract
A molecular docking study was performed on several structurally diverse A(2A) AR antagonists, including xanthines, and non-xanthine type antagonists to investigate their binding modes with A(2A) adenosine receptor (AR), one of the four subtypes of AR, which is currently of great interest as a target for therapeutic intervention, in particular for Parkinson's disease. The high-affinity binding site was found to be a hydrophobic pocket with the involvement of hydrogen bonding interactions as well as pi-pi stacking interactions with the ligands. The detailed binding modes for both xanthine and non-xanthine type A(2A) antagonists were compared and the essential features were extracted and converted to database searchable queries for virtual screening study of novel A(2A) AR antagonists. Findings from this study are helpful for elucidating the binding pattern of A(2A) AR antagonists and for the design of novel active ligands.
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Wang Y, Gao Q. Spatially adaptive stationary wavelet thresholding for the denoising of DNA capillary electrophoresis signal. JOURNAL OF ANALYTICAL CHEMISTRY 2008. [DOI: 10.1134/s1061934808080108] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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