176
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Lee SC, Lai MS, Chiang S, Lai MK, Chang H, Chen JC, Rav K, Chang C, Liao Y, Hwang C. National multi-center study on chemotherapy safety practice. J Clin Oncol 2008. [DOI: 10.1200/jco.2008.26.15_suppl.17569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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177
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Liu DX, Yuan Q, Liao Y. Coronavirus envelope protein: a small membrane protein with multiple functions. Cell Mol Life Sci 2007; 64:2043-8. [PMID: 17530462 PMCID: PMC7079843 DOI: 10.1007/s00018-007-7103-1] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Abstract
Coronavirus envelope protein is a small membrane protein and minor component of the virus particles. It plays important roles in virion assembly and morphogenesis, alteration of the membrane permeability of host cells and virus-host cell interaction. Here we review recent progress in characterization of the biochemical properties, membrane topology and functions of the protein.
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178
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Wu R, Du J, Liao Y, Ye Y, Du Y, Zhuang G. The effect of serum inhibin B measurement for predicting ovarian reserve and treatment options in assisted reproduction. Fertil Steril 2007. [DOI: 10.1016/j.fertnstert.2007.07.947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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179
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Wan X, Liu H, Liao Y, Su Y, Geng J, Yang M, Chen X, Shen P. Isolation of a novel strain of Aeromonas media producing high levels of DOPA-melanin and assessment of the photoprotective role of the melanin in bioinsecticide applications. J Appl Microbiol 2007; 103:2533-41. [DOI: 10.1111/j.1365-2672.2007.03502.x] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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180
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Huang Y, Joiner M, Liao Y, Burmeister J. SU-GG-AUD-02: Dose Convolution Filter: Incorporating Spatial Dose Information Into Tissue Response Modeling. Med Phys 2007. [DOI: 10.1118/1.2761178] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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181
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Li M, Chen J, Li Y, Feng Y, Zeng Q, Liao Y. PO9-238 FOLIC ACID REDUCES CHEMOKINE MCP-1 RELEASE AND EXPRESSION IN RATS WITH HYPERHOMOCYSTEINEMIA. ATHEROSCLEROSIS SUPP 2007. [DOI: 10.1016/s1567-5688(07)71248-5] [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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182
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Liao Y, Wu Y, Ping B, Wei Y, Donehower L, Hung M. 177 POSTER Chemosensitization by targeting a protein phosphatase in human cancer cells. EJC Suppl 2006. [DOI: 10.1016/s1359-6349(06)70182-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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183
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Yuan Q, Liao Y, Torres J, Tam J, Liu D. Biochemical evidence for the presence of mixed membrane topologies of the severe acute respiratory syndrome coronavirus envelope protein expressed in mammalian cells. FEBS Lett 2006; 580:3192-200. [PMID: 16684538 PMCID: PMC7094218 DOI: 10.1016/j.febslet.2006.04.076] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2006] [Revised: 04/18/2006] [Accepted: 04/26/2006] [Indexed: 01/18/2023]
Abstract
Coronavirus envelope (E) protein is a small integral membrane protein with multi‐functions in virion assembly, morphogenesis and virus–host interaction. Different coronavirus E proteins share striking similarities in biochemical properties and biological functions, but seem to adopt distinct membrane topology. In this report, we study the membrane topology of the SARS‐CoV E protein by immunofluorescent staining of cells differentially permeabilized with detergents and proteinase K protection assay. It was revealed that both the N‐ and C‐termini of the SARS‐CoV E protein are exposed to the cytoplasmic side of the membranes (NcytoCcyto). In contrast, parallel experiments showed that the E protein from infectious bronchitis virus (IBV) spanned the membranes once, with the N‐terminus exposed luminally and the C‐terminus exposed cytoplasmically (Nexo(lum)Ccyto). Intriguingly, a minor proportion of the SARS‐CoV E protein was found to be modified by N‐linked glycosylation on Asn 66 and inserted into the membranes once with the C‐terminus exposed to the luminal side. The presence of two distinct membrane topologies of the SARS‐CoV E protein may provide a useful clue to the pathogenesis of SARS‐CoV.
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184
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Liao Y, Yuan Q, Torres J, Tam J, Liu D. Biochemical and functional characterization of the membrane association and membrane permeabilizing activity of the severe acute respiratory syndrome coronavirus envelope protein. Virology 2006; 349:264-75. [PMID: 16507314 PMCID: PMC7111751 DOI: 10.1016/j.virol.2006.01.028] [Citation(s) in RCA: 102] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2005] [Revised: 12/07/2005] [Accepted: 01/21/2006] [Indexed: 12/02/2022]
Abstract
A diverse group of cytolytic animal viruses encodes small, hydrophobic proteins to modify host cell membrane permeability to ions and small molecules during their infection cycles. In this study, we show that expression of the SARS-CoV E protein in mammalian cells alters the membrane permeability of these cells. Immunofluorescent staining and cell fractionation studies demonstrate that this protein is an integral membrane protein. It is mainly localized to the ER and the Golgi apparatus. The protein can be translocated to the cell surface and is partially associated with lipid rafts. Further biochemical characterization of the protein reveals that it is posttranslationally modified by palmitoylation on all three cysteine residues. Systematic mutagenesis studies confirm that the membrane permeabilizing activity of the SARS-CoV E protein is associated with its transmembrane domain.
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185
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Rachelefsky G, Li H, Liao N, Liao Y, Combates N, Faruqi R, Varghese S. Inhaled Corticosteroids and the Risk of Oropharyngeal Adverse Events: Results from a Meta-Analysis. J Allergy Clin Immunol 2006. [DOI: 10.1016/j.jaci.2005.12.368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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186
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Baehr-Jones T, Hochberg M, Wang G, Lawson R, Liao Y, Sullivan P, Dalton L, Jen A, Scherer A. Optical modulation and detection in slotted Silicon waveguides. OPTICS EXPRESS 2005; 13:5216-5226. [PMID: 19498512 DOI: 10.1364/opex.13.005216] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
We demonstrate a novel mechanism for low power optical detection and modulation in a slotted waveguide geometry filled with nonlinear electro-optic polymers. The nanoscale confinement of the optical mode, combined with its close proximity to electrical contacts, enables the direct conversion of optical energy to electrical energy, without external bias, via optical rectification, and also enhances electro-optic modulation. We demonstrate this process for power levels in the sub-milliwatt regime, as compared to the kilowatt regime in which optical nonlinear effects are typically observed at short length scales. Our results suggest that a new class of detectors based on nonlinear optics may be practical.
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187
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Monroe E, Gross G, Meeves S, Liao Y, Varghese S, Georges G. Once-daily fexofenadine HCl 180 mg is effective for the treatment of CIU. J Allergy Clin Immunol 2005. [DOI: 10.1016/j.jaci.2004.12.439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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188
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Liao Y, Lescar J, Tam J, Liu D. Expression of SARS-coronavirus envelope protein in Escherichia coli cells alters membrane permeability. Biochem Biophys Res Commun 2004; 325:374-80. [PMID: 15522242 PMCID: PMC7092894 DOI: 10.1016/j.bbrc.2004.10.050] [Citation(s) in RCA: 71] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2004] [Indexed: 11/26/2022]
Abstract
To promote viral entry, replication, release, and spread to neighboring cells, many cytolytic animal viruses encode proteins responsible for modification of host cell membrane permeability and for formation of ion channels in host cell membranes during their life cycles. In this study, we show that the envelope (E) protein of severe acute respiratory syndrome-associated coronavirus can induce membrane permeability changes when expressed in Escherichia coli. E protein expressed in bacterial and mammalian cells under reducing conditions existed as monomers, but formed homodimer and homotrimer under non-reducing conditions. Site-directed mutagenesis studies revealed that two cysteine residues of the E protein were essential for oligomerization, leading to induction of membrane permeability. This is the first report demonstrating that a coronavirus-encoded protein could modify membrane permeability in E. coli cells.
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189
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Xia W, Chen JS, Zhou X, Lee DF, Liao Y, Zhou B, Hung MC. 418 Cytoplasmic localization of p21 cip1/WAF1 is a poor prognostic marker in the breast cancer patients. EJC Suppl 2004. [DOI: 10.1016/s1359-6349(04)80426-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
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190
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Liao Y, Wang J, Nunge RJ, McLaughlin JB. Comments on “Bubble motion in aqueous surfactant solutions”. J Colloid Interface Sci 2004; 272:498-501. [PMID: 15028516 DOI: 10.1016/j.jcis.2004.01.015] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2003] [Accepted: 01/07/2004] [Indexed: 11/26/2022]
Abstract
The numerical simulations of bubble motion in dilute surfactant solutions reported previously by two of the authors contained a serious numerical inaccuracy. In agreement with experiments, single bubbles released from rest were predicted to reach a maximum speed before slowing to a terminal speed. However, subsequent experiments demonstrated that, in the simulations, the bubbles reached their terminal speed too quickly. The source of the discrepancy is an inaccuracy associated with the numerical algorithm used to solve the surfactant transport equation on the bubble surface. After correcting the problem, the simulations agree much better with the experiments.
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191
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Wang Z, Liao Y, Dong J, Li S, Wang J, Tu Y. Myosin-induced autoimmune myocarditis in BALB/C mice. JOURNAL OF TONGJI MEDICAL UNIVERSITY = TONG JI YI KE DA XUE XUE BAO 2003; 19:112-4. [PMID: 12840852 DOI: 10.1007/bf02886889] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Experimental mice were immunized with cardiac myosin and complete Freund's adjuvant (CFA) on days 0, 7 and 30 and control mice were immunized with CFA. Sera and myocardium samples were harvested on days 15, 21 and 120 after the first immunization. Pathological findings demonstrated that there were necrosis and inflammatory infiltration in acute stage and fibrosis mainly in chronic stage of experimental group. Anti-myosin antibodies were also found in sera of experimental mice, but not in control group. Our study showed that cardiac myosin served as an autoantigen to provoke autoimmunity and lead to the transformation of VMC into DCM.
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192
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Mansfield L, Meeves S, Liao Y, Georges G. Two-week treatment with cetirizine 10 mg is associated with increased drowsiness compared with fexofenadine 180 mg. J Allergy Clin Immunol 2003. [DOI: 10.1016/s0091-6749(03)80176-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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193
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Kaiser H, Woodworth T, Liao Y, Garcia J, Georges G. Triamcinolone acetonide aqueous (TAA AQ) and fluticasone propionate (FP) nasal sprays show equivalent relief of total symptom scores regardless of disease severity. J Allergy Clin Immunol 2003. [DOI: 10.1016/s0091-6749(03)80758-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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194
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Brown HC, Racherla US, Liao Y, Khanna VV. Chiral synthesis via organoboranes. 35. Simple procedures for the efficient recycling of the terpenyl chiral auxiliaries and convenient isolation of the homoallylic alcohols in asymmetric allyl- and crotylboration of aldehydes. J Org Chem 2002. [DOI: 10.1021/jo00050a044] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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195
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Wu J, Liao Y, Yang Z. Synthesis of 4-substituted coumarins via the palladium-catalyzed cross-couplings of 4-tosylcoumarins with terminal acetylenes and organozinc reagents. J Org Chem 2002; 66:3642-5. [PMID: 11348165 DOI: 10.1021/jo0102157] [Citation(s) in RCA: 133] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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196
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Wang H, Chao Y, Liao Y, Sun J. [Determination of shrinkage and bending strength of GI-II infiltrated ceramic]. HUA XI YI KE DA XUE XUE BAO = JOURNAL OF WEST CHINA UNIVERSITY OF MEDICAL SCIENCES = HUAXI YIKE DAXUE XUEBAO 2001; 32:524-5. [PMID: 12528537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Abstract
OBJECTIVE To determine the shrinkage and strength of GI-II Infiltrated Ceramic for providing scientific basis of its clinical use. METHODS The adobes by slip-casting alumina powder of GI-II Infiltrated Ceramic were sintered at 1125 degrees C for 2 hours. The sintered alumina bodies were then divided into two groups and infiltrated by melt glass at 1125 degrees C and 1100 degrees C respectively for 6 hours. The length of the infiltrated ceramic specimens before and after fabrication was determined to calculate shrinkage. Their strength values were obtained by 3-point bending test. RESULTS The infiltrated ceramic infiltrated at 1125 degrees C was 0.289 +/- 0.155% in shrinkage, 367.7 +/- 76.1 MPa in strength, and 4.79 in Weibull modulus; that infiltrated at 1100 degrees C was 0.253 +/- 0.043%, 377.5 +/- 64.4 MPa, and 5.52, respectively. There was no statistically significant difference between those two groups. But their strength values were statistically high, compared with 300 MPa. CONCLUSION The shrinkage of GI-II Infiltrated Ceramic could be compensated by brushing spacer on dies and expansion of die stone. Its strength satisfied the requirement for clinical use of all-ceramic bridge materials. This kind of high-strength and low-shrinkage ceramic could be used for fabricating all ceramic crown and bridge core.
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Mo A, Wang J, Liao Y, Cen Y, Shi X. [The influences of crystallized compositions in the porcelain on bonding strength of titanium to porcelain]. HUA XI KOU QIANG YI XUE ZA ZHI = HUAXI KOUQIANG YIXUE ZAZHI = WEST CHINA JOURNAL OF STOMATOLOGY 2001; 19:357-9, 362. [PMID: 12539681] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Abstract
OBJECTIVE Sufficient porcelain-titanium bond is a vital factor determining the clinical performance of titanium-porcelain restorations. The purpose of this study was to investigate the effects of self-preparation La-porcelain composition on the porcelain-titanium bonding strength and to compare with the Vita Titankeramik. METHODS The present study examines 5 different recipes of porcelain by weight%: SiO2, 12%-17%; LaO2, 7%-10%; Al2O3, 9%-14%; B2O3, 23%-31%; CaO, 6%-8%; K2O, 2%-3%; SrO, 2%-4%; Na2O, 1%-3%; SnO2, 8%-10%; ZrO2, 3%-5%; TiO2, 6%-8%. Specimens were tested in push type shear with a universal testing machine. Scanning electron microscopy (SEM) and electron probe microanalyzer (EPMA) were employed to reveal the microstructures and diffusion of elements in the interfacial regions between the porcelain coating and titanium to the bond strength when fired at 800 degrees C. RESULTS The ratios of crystallized compositions had significant influences on the porcelain-titanium bond strength (P < 0.05). La-porcelain had the highest shear bond strength (37.76 MPa). The shear bond strength of the Vita Titankeramik to titanium was 20.18 MPa. The results of SEM revealed integrity of porcelain-titanium joints in La-porcelain and a greater amount of porosity in the interface of Vita Titankeramik to titanium. EPMA analysis demonstrated the aggregation of Si and Sn in the interfacial regions and their diffusion into the titanium. CONCLUSION Chemical compositions of porcelain and ratios of crystallized compositions play the important role in the titanium porcelain bond. La-porcelain had the highest shear bond strength and good porcelain-titanium joints. La-porcelain is a new-style low fusing porcelain/titanium system.
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198
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Liao Y, Ghali JK, Berzins L, Cooper RS. Coronary angiographic findings in African-American and white patients from a single institution. J Natl Med Assoc 2001; 93:465-74. [PMID: 11800275 PMCID: PMC2594051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
Abstract
No data exist comparing clinical and angiographic findings in large numbers of contemporary African-American and white patients from the same hospital. Limited angiographic data on African Americans were obtained from hospitals serving predominantly minority patients, making the valid African-American:white comparisons difficult. The study included 2,624 consecutive white and 1,793 African-American patients who had angiography for diagnostic evaluation of presumed coronary artery disease at the Louisiana State University Medical Center in Shreveport between 1990 and 1997. Compared to whites of the same sex, a greater proportion of African-American patients had a history of hypertension, stroke, and heart failure. African Americans also had significantly higher systemic and left ventricular pressure, lower ejection fraction, greater echocardiographic left ventricular mass index, and more concentric hypertrophy. The overall proportion of patients with normal or minimal stenosis of coronary artery (<50% narrowing in the luminal diameter) was greater in African Americans than in whites for both men and women. This difference was predominately found in men aged > or = 55 years or older. Except among older men, African-American patients with coronary heart disease had a similar distribution of 1-, 2-, 3-vessel disease and mean stenosis score compared to whites. In conclusion, a higher frequency of normal coronaries and less frequent coronary stenosis were found in older African-American men. The African-American:white differences in angiographic findings were minimal in younger men and in women. However, African Americans had worse clinical profiles than whites.
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199
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Gong J, Macalpine JM, Jin W, Liao Y. Locating acoustic emission with an amplitude-multiplexed acoustic sensor array based on a modified mach-zehnder interferometer. APPLIED OPTICS 2001; 40:6199-6202. [PMID: 18364921 DOI: 10.1364/ao.40.006199] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
We report on an amplitude-division-multiplexed interferometric sensor array for locating acoustic emission. Preliminary experiments were carried out with a modified Mach-Zehnder interferometer consisting of two sensing arms and a reference arm and demonstrated a one-dimensional location accuracy of a few centimeters. The system can be extended for two- and three-dimensional location of acoustic emissions by the addition of one or two more sensing arms, respectively, in the interferometer.
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200
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Takemoto M, Node K, Nakagami H, Liao Y, Grimm M, Takemoto Y, Kitakaze M, Liao JK. Statins as antioxidant therapy for preventing cardiac myocyte hypertrophy. J Clin Invest 2001; 108:1429-37. [PMID: 11714734 PMCID: PMC209420 DOI: 10.1172/jci13350] [Citation(s) in RCA: 343] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Cardiac hypertrophy is a major cause of morbidity and mortality worldwide. The hypertrophic process is mediated, in part, by small G proteins of the Rho family. We hypothesized that statins, inhibitors of 3-hydroxy-3-methylglutaryl-CoA reductase, inhibit cardiac hypertrophy by blocking Rho isoprenylation. We treated neonatal rat cardiac myocytes with angiotensin II (AngII) with and without simvastatin (Sim) and found that Sim decreased AngII-induced protein content, [3H] leucine uptake, and atrial natriuretic factor (ANF) promoter activity. These effects were associated with decreases in cell size, membrane Rho activity, superoxide anion (O2*-) production, and intracellular oxidation, and were reversed with L-mevalonate or geranylgeranylpyrophosphate, but not with farnesylpyrophosphate or cholesterol. Treatments with the Rho inhibitor C3 exotoxin and with cell-permeable superoxide dismutase also decreased AngII-induced O2*- production and myocyte hypertrophy. Overexpression of the dominant-negative Rho mutant N17Rac1 completely inhibited AngII-induced intracellular oxidation and ANF promoter activity, while N19RhoA partially inhibited it, and N17Cdc42 had no effect. Indeed, Sim inhibited cardiac hypertrophy and decreased myocardial Rac1 activity and O2*- production in rats treated with AngII infusion or subjected to transaortic constriction. These findings suggest that statins prevent the development of cardiac hypertrophy through an antioxidant mechanism involving inhibition of Rac1.
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