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Zhou J, Smith DK, Lu L, Poon VKM, Ng F, Chen DQ, Huang JD, Yuen KY, Cao KY, Zheng BJ. A non-synonymous single nucleotide polymorphism in IFNAR1 affects susceptibility to chronic hepatitis B virus infection. J Viral Hepat 2009; 16:45-52. [PMID: 18761606 DOI: 10.1111/j.1365-2893.2008.01040.x] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The type I interferon (IFN-alpha/beta) receptor 1 (IFNAR1) mediates the potent antiviral and immuno-regulatory effects of IFN-alpha/beta that are believed to be pivotal to eradicate hepatitis B virus (HBV) infection. IFNAR1 promoter polymorphisms (at -568/-77) have been shown to be associated with susceptibility to chronic HBV infection; however, whether these markers are genetic determinants of HBV infection remains unknown. The functional significance of promoter -568/-77 polymorphisms was assessed by mutagenesis and luciferase assays. Sequencing and restriction fragment length polymorphisms in 328 chronic HBV patients, 130 spontaneous resolvers and 148 healthy blood donors identified other polymorphism at IFNAR1 open reading frame. IFNAR1 expression levels in peripheral blood cells were detected by flow cytometry. We found that the -568/-77 promoter variants were unlikely to affect transcription levels. A C/G single nucleotide polymorphism, in strong linkage disequilibrium with the promoter polymorphisms, was found in the coding sequence of IFNAR1 (nt19158). This resulted in a nonsynonymous substitution in the extracellular region of IFNAR1 protein and correlated with susceptibility to chronic HBV infection. Bioinformatic analysis suggested decreased stability of the IFNAR1 protein. Chronic HBV patients with the 19158C/C genotype (Leu141) exhibited higher IFNAR1 protein expression levels in peripheral blood monocytes than those with the 19158G/G genotype (Val141). In conclusion, IFNAR1 19158C/G polymorphism is primarily associated with susceptibility to chronic HBV infection.
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1277
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Abelev BI, Aggarwal MM, Ahammed Z, Anderson BD, Arkhipkin D, Averichev GS, Bai Y, Balewski J, Barannikova O, Barnby LS, Baudot J, Baumgart S, Beavis DR, Bellwied R, Benedosso F, Betts RR, Bhardwaj S, Bhasin A, Bhati AK, Bichsel H, Bielcik J, Bielcikova J, Biritz B, Bland LC, Bombara M, Bonner BE, Botje M, Bouchet J, Braidot E, Brandin AV, Bueltmann S, Burton TP, Bystersky M, Cai XZ, Caines H, Calderón de la Barca Sánchez M, Callner J, Catu O, Cebra D, Cendejas R, Cervantes MC, Chajecki Z, Chaloupka P, Chattopadhyay S, Chen HF, Chen JH, Chen JY, Cheng J, Cherney M, Chikanian A, Choi KE, Christie W, Chung SU, Clarke RF, Codrington MJM, Coffin JP, Cormier TM, Cosentino MR, Cramer JG, Crawford HJ, Das D, Dash S, Daugherity M, de Moura MM, Dedovich TG, Dephillips M, Derevschikov AA, Derradi de Souza R, Didenko L, Dietel T, Djawotho P, Dogra SM, Dong X, Drachenberg JL, Draper JE, Du F, Dunlop JC, Dutta Mazumdar MR, Edwards WR, Efimov LG, Elhalhuli E, Elnimr M, Emelianov V, Engelage J, Eppley G, Erazmus B, Estienne M, Eun L, Fachini P, Fatemi R, Fedorisin J, Feng A, Filip P, Finch E, Fine V, Fisyak Y, Gagliardi CA, Gaillard L, Gangadharan DR, Ganti MS, Garcia-Solis E, Ghazikhanian V, Ghosh P, Gorbunov YN, Gordon A, Grebenyuk O, Grosnick D, Grube B, Guertin SM, Guimaraes KSFF, Gupta A, Gupta N, Guryn W, Haag B, Hallman TJ, Hamed A, Harris JW, He W, Heinz M, Heppelmann S, Hippolyte B, Hirsch A, Hoffman AM, Hoffmann GW, Hofman DJ, Hollis RS, Huang HZ, Hughes EW, Humanic TJ, Igo G, Iordanova A, Jacobs P, Jacobs WW, Jakl P, Jin F, Jones PG, Judd EG, Kabana S, Kajimoto K, Kang K, Kapitan J, Kaplan M, Keane D, Kechechyan A, Kettler D, Khodyrev VY, Kiryluk J, Kisiel A, Klein SR, Knospe AG, Kocoloski A, Koetke DD, Kollegger T, Kopytine M, Kotchenda L, Kouchpil V, Kravtsov P, Kravtsov VI, Krueger K, Kuhn C, Kumar A, Kumar L, Kurnadi P, Lamont MAC, Landgraf JM, Lange S, Lapointe S, Laue F, Lauret J, Lebedev A, Lednicky R, Lee CH, Levine MJ, Li C, Li Y, Lin G, Lin X, Lindenbaum SJ, Lisa MA, Liu F, Liu J, Liu L, Ljubicic T, Llope WJ, Longacre RS, Love WA, Lu Y, Ludlam T, Lynn D, Ma GL, Ma JG, Ma YG, Mahapatra DP, Majka R, Mangotra LK, Manweiler R, Margetis S, Markert C, Matis HS, Matulenko YA, McShane TS, Meschanin A, Millane J, Miller ML, Minaev NG, Mioduszewski S, Mischke A, Mitchell J, Mohanty B, Morozov DA, Munhoz MG, Nandi BK, Nattrass C, Nayak TK, Nelson JM, Nepali C, Netrakanti PK, Ng MJ, Nogach LV, Nurushev SB, Odyniec G, Ogawa A, Okada H, Okorokov V, Olson D, Pachr M, Pal SK, Panebratsev Y, Pawlak T, Peitzmann T, Perevoztchikov V, Perkins C, Peryt W, Phatak SC, Planinic M, Pluta J, Poljak N, Porile N, Poskanzer AM, Potekhin M, Potukuchi BVKS, Prindle D, Pruneau C, Pruthi NK, Putschke J, Qattan IA, Raniwala R, Raniwala S, Ray RL, Ridiger A, Ritter HG, Roberts JB, Rogachevskiy OV, Romero JL, Rose A, Roy C, Ruan L, Russcher MJ, Rykov V, Sahoo R, Sakrejda I, Sakuma T, Salur S, Sandweiss J, Sarsour M, Schambach J, Scharenberg RP, Schmitz N, Seger J, Selyuzhenkov I, Seyboth P, Shabetai A, Shahaliev E, Shao M, Sharma M, Shi SS, Shi XH, Sichtermann EP, Simon F, Singaraju RN, Skoby MJ, Smirnov N, Snellings R, Sorensen P, Sowinski J, Spinka HM, Srivastava B, Stadnik A, Stanislaus TDS, Staszak D, Stock R, Strikhanov M, Stringfellow B, Suaide AAP, Suarez MC, Subba NL, Sumbera M, Sun XM, Sun Y, Sun Z, Surrow B, Symons TJM, Szanto de Toledo A, Takahashi J, Tang AH, Tang Z, Tarnowsky T, Thein D, Thomas JH, Tian J, Timmins AR, Timoshenko S, Tokarev M, Trainor TA, Tram VN, Trattner AL, Trentalange S, Tribble RE, Tsai OD, Ulery J, Ullrich T, Underwood DG, Van Buren G, van der Kolk N, van Leeuwen M, Vander Molen AM, Varma R, Vasconcelos GMS, Vasilevski IM, Vasiliev AN, Videbaek F, Vigdor SE, Viyogi YP, Vokal S, Voloshin SA, Wada M, Waggoner WT, Wang F, Wang G, Wang JS, Wang Q, Wang X, Wang XL, Wang Y, Webb JC, Westfall GD, Whitten C, Wieman H, Wissink SW, Witt R, Wu J, Wu Y, Xu N, Xu QH, Xu Y, Xu Z, Yang YY, Yepes P, Yoo IK, Yue Q, Zawisza M, Zbroszczyk H, Zhan W, Zhang H, Zhang S, Zhang WM, Zhang Y, Zhang ZP, Zhao Y, Zhong C, Zhou J, Zoulkarneev R, Zoulkarneeva Y, Zuo JX. System-size independence of directed flow measured at the BNL relativistic heavy-ion collider. PHYSICAL REVIEW LETTERS 2008; 101:252301. [PMID: 19113699 DOI: 10.1103/physrevlett.101.252301] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2008] [Indexed: 05/27/2023]
Abstract
We measure directed flow (v_{1}) for charged particles in Au+Au and Cu+Cu collisions at sqrt[s_{NN}]=200 and 62.4 GeV, as a function of pseudorapidity (eta), transverse momentum (p_{t}), and collision centrality, based on data from the STAR experiment. We find that the directed flow depends on the incident energy but, contrary to all available model implementations, not on the size of the colliding system at a given centrality. We extend the validity of the limiting fragmentation concept to v_{1} in different collision systems, and investigate possible explanations for the observed sign change in v_{1}(p_{t}).
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1278
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Abelev BI, Aggarwal MM, Ahammed Z, Anderson BD, Arkhipkin D, Averichev GS, Bai Y, Balewski J, Barannikova O, Barnby LS, Baudot J, Baumgart S, Beavis DR, Bellwied R, Benedosso F, Betts RR, Bhardwaj S, Bhasin A, Bhati AK, Bichsel H, Bielcik J, Bielcikova J, Bland LC, Blyth SL, Bombara M, Bonner BE, Botje M, Bouchet J, Braidot E, Brandin AV, Bueltmann S, Burton TP, Bystersky M, Cai XZ, Caines H, Calderón de la Barca Sánchez M, Callner J, Catu O, Cebra D, Cervantes MC, Chajecki Z, Chaloupka P, Chattopadhyay S, Chen HF, Chen JH, Chen JY, Cheng J, Cherney M, Chikanian A, Choi KE, Christie W, Chung SU, Clarke RF, Codrington MJM, Coffin JP, Cormier TM, Cosentino MR, Cramer JG, Crawford HJ, Das D, Dash S, Daugherity M, de Moura MM, Dedovich TG, DePhillips M, Derevschikov AA, Derradi de Souza R, Didenko L, Dietel T, Djawotho P, Dogra SM, Dong X, Drachenberg JL, Draper JE, Du F, Dunlop JC, Dutta Mazumdar MR, Edwards WR, Efimov LG, Elhalhuli E, Emelianov V, Engelage J, Eppley G, Erazmus B, Estienne M, Eun L, Fachini P, Fatemi R, Fedorisin J, Feng A, Filip P, Finch E, Fine V, Fisyak Y, Fu J, Gagliardi CA, Gaillard L, Ganti MS, Garcia-Solis E, Ghazikhanian V, Ghosh P, Gorbunov YN, Gordon A, Gos H, Grebenyuk O, Grosnick D, Grube B, Guertin SM, Guimaraes KSFF, Gupta A, Gupta N, Guryn W, Haag B, Hallman TJ, Hamed A, Harris JW, He W, Heinz M, Henry TW, Heppelmann S, Hippolyte B, Hirsch A, Hjort E, Hoffman AM, Hoffmann GW, Hofman DJ, Hollis RS, Horner MJ, Huang HZ, Hughes EW, Humanic TJ, Igo G, Iordanova A, Jacobs P, Jacobs WW, Jakl P, Jin F, Jones PG, Judd EG, Kabana S, Kajimoto K, Kang K, Kapitan J, Kaplan M, Keane D, Kechechyan A, Kettler D, Khodyrev VY, Kiryluk J, Kisiel A, Klein SR, Knospe AG, Kocoloski A, Koetke DD, Kollegger T, Kopytine M, Kotchenda L, Kouchpil V, Kowalik KL, Kravtsov P, Kravtsov VI, Krueger K, Kuhn C, Kumar A, Kurnadi P, Lamont MAC, Landgraf JM, Langdon J, Lange S, LaPointe S, Laue F, Lauret J, Lebedev A, Lednicky R, Lee CH, LeVine MJ, Li C, Li Q, Li Y, Lin G, Lin X, Lindenbaum SJ, Lisa MA, Liu F, Liu H, Liu J, Liu L, Ljubicic T, Llope WJ, Longacre RS, Love WA, Lu Y, Ludlam T, Lynn D, Ma GL, Ma JG, Ma YG, Mahapatra DP, Majka R, Mangotra LK, Manweiler R, Margetis S, Markert C, Matis HS, Matulenko YA, McShane TS, Meschanin A, Millane J, Miller C, Miller ML, Minaev NG, Mioduszewski S, Mischke A, Mitchell J, Mohanty B, Morozov DA, Munhoz MG, Nandi BK, Nattrass C, Nayak TK, Nelson JM, Nepali C, Netrakanti PK, Ng MJ, Nogach LV, Nurushev SB, Odyniec G, Ogawa A, Okada H, Okorokov V, Olson D, Pachr M, Pal SK, Panebratsev Y, Pavlinov AI, Pawlak T, Peitzmann T, Perevoztchikov V, Perkins C, Peryt W, Phatak SC, Planinic M, Pluta J, Poljak N, Porile N, Poskanzer AM, Potekhin M, Potukuchi BVKS, Prindle D, Pruneau C, Pruthi NK, Putschke J, Qattan IA, Rakness G, Raniwala R, Raniwala S, Ray RL, Relyea D, Ridiger A, Ritter HG, Roberts JB, Rogachevskiy OV, Romero JL, Rose A, Roy C, Ruan L, Russcher MJ, Rykov V, Sahoo R, Sakrejda I, Sakuma T, Salur S, Sandweiss J, Sarsour M, Schambach J, Scharenberg RP, Schmitz N, Seger J, Selyuzhenkov I, Seyboth P, Shabetai A, Shahaliev E, Shao M, Sharma M, Shi XH, Sichtermann EP, Simon F, Singaraju RN, Skoby MJ, Smirnov N, Snellings R, Sorensen P, Sowinski J, Speltz J, Spinka HM, Srivastava B, Stadnik A, Stanislaus TDS, Staszak D, Stock R, Strikhanov M, Stringfellow B, Suaide AAP, Suarez MC, Subba NL, Sumbera M, Sun XM, Sun Z, Surrow B, Symons TJM, Szanto de Toledo A, Takahashi J, Tang AH, Tang Z, Tarnowsky T, Tatarowicz J, Thein D, Thomas JH, Tian J, Timmins AR, Timoshenko S, Tokarev M, Trainor TA, Tram VN, Trattner AL, Trentalange S, Tribble RE, Tsai OD, Ulery J, Ullrich T, Underwood DG, Van Buren G, van der Kolk N, van Leeuwen M, Vander Molen AM, Varma R, Vasconcelos GMS, Vasilevski IM, Vasiliev AN, Vernet R, Videbaek F, Vigdor SE, Viyogi YP, Vokal S, Voloshin SA, Wada M, Waggoner WT, Wang F, Wang G, Wang JS, Wang Q, Wang X, Wang XL, Wang Y, Webb JC, Westfall GD, Whitten C, Wieman H, Wissink SW, Witt R, Wu J, Wu Y, Xu N, Xu QH, Xu Z, Yepes P, Yoo IK, Yue Q, Zachariou N, Zawisza M, Zhan W, Zhang H, Zhang S, Zhang WM, Zhang Y, Zhang ZP, Zhao Y, Zhong C, Zhou J, Zoulkarneev R, Zoulkarneeva Y, Zuo JX. Forward neutral-pion transverse single-spin asymmetries in p + p collisions at sqrt[s] = 200 GeV. PHYSICAL REVIEW LETTERS 2008; 101:222001. [PMID: 19113478 DOI: 10.1103/physrevlett.101.222001] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2008] [Indexed: 05/27/2023]
Abstract
We report precision measurements of the Feynman x (xF) dependence, and first measurements of the transverse momentum (pT) dependence, of transverse single-spin asymmetries for the production of pi0 mesons from polarized proton collisions at sqrt[s] = 200 GeV. The xF dependence of the results is in fair agreement with perturbative QCD model calculations that identify orbital motion of quarks and gluons within the proton as the origin of the spin effects. Results for the pT dependence at fixed xF are not consistent with these same perturbative QCD-based calculations.
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1279
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Zhou J. Effect of Dietary Conjugated Linoleic Acid (CLA) on Abdominal Fat Deposition in Yellow-feather Broiler Chickens and Its Possible Mechanism. ASIAN-AUSTRALASIAN JOURNAL OF ANIMAL SCIENCES 2008. [DOI: 10.5713/ajas.2008.80165] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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1280
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Slooff FA, Zhou J, Duszczyk J, Katgerman L. Strain-dependent constitutive analysis of three wrought Mg-Al-Zn alloys. JOURNAL OF MATERIALS SCIENCE 2008; 43:7165-7170. [PMID: 36039050 PMCID: PMC9403653 DOI: 10.1007/s10853-008-3014-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/14/2007] [Accepted: 09/19/2008] [Indexed: 06/15/2023]
Abstract
The commonly used hyperbolic sine constitutive equation for metal forming at elevated temperatures, with no strain incorporated, is in principle applicable only to deformation in the steady state. However, the actual deformation processes applied to magnesium alloys are mostly in the non-steady state. In the present research, the results of hot uniaxial compression tests of three wrought magnesium alloys covering wide ranges of temperatures and strain rates were used for a strain-dependent constitutive analysis. A strain-dependent constitutive relationship for these alloys was established. It appeared that the apparent activation energy for deformation decreased with increasing the alloying content in these alloys. The constitutive parameters obtained were used to predict flow stresses at given strains and the results were in good agreement with experimental measurements.
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1281
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Zheng J, Long L, Hu J, Zhou J, Wu D. Isolation and sequence analysis of Sox genes in the red crucian carp (Carassius carassius red variety). GENETIKA 2008; 44:1525-1531. [PMID: 19137736] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Sox genes encode a family of transcription factors which are characterized by the conserved HMG domain and are involved in a diverse range of developmental processes. Using degenerate primer PCR, 7 different sequences encoding the HMG domains of Sox1, Sox9 and Sox1 1b were cloned and sequenced from genomic DNA in the red crucian carp (Carassius carassius red variety). In the case of Sox1 and Sox1 1b, we found evidence of gene duplication. In the phylogenetic tree, two paralogs of Sox1 1b (Sox1 1b1 and Sox1 1b2) fit within the clade of Sox11, especially in the Sox 1b subfamily, not in the Sox1 1a subfamily. Three Sox1 sequences (Soxl-1, Soxl-2 and Sox1-3) which shared the same amino acid sequence were identified in the red crucian carp. At the nucleotide level, Soxl-1 shared the highest sequence similarity to the zebrafish Sox1a, and Sox1-2 and Sox1-3 showed the highest similarity to the zebrafish Sox1b. The phylogenetic tree clearly demonstrated that the red crucian carp Sox1-1 clustered together with the zebrafish Sox1a, and the red crucian carp Sox1-2 and Sox1-3 with the zebrafish Sox1b. The result suggested that the red crucian carp Sox1-1, Soxl-2 and Sox1-3 were resulted from duplication of Sox1 gene rather than polymorphisms of the same gene.
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1282
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Raj M, Abd Elmageed Z, Zhou J, Gaur R, Nguyen L, Azam G, Rao P, Ouhtit A. Synergistic action of dietary phyto-antioxidants on survival and proliferation of ovarian cancer cells. Gynecol Oncol 2008. [DOI: 10.1016/j.ygyno.2008.07.090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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1283
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Guo X, Xia X, Tang R, Zhou J, Zhao H, Wang K. Development of a real-time PCR method forFirmicutesandBacteroidetesin faeces and its application to quantify intestinal population of obese and lean pigs. Lett Appl Microbiol 2008; 47:367-73. [DOI: 10.1111/j.1472-765x.2008.02408.x] [Citation(s) in RCA: 375] [Impact Index Per Article: 23.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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1284
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Zhou J, Gilerson A, Ioannou I, Hlaing S, Schalles J, Gross B, Moshary F, Ahmed S. Retrieving quantum yield of sun-induced chlorophyll fluorescence near surface from hyperspectral in-situ measurement in productive water. OPTICS EXPRESS 2008; 16:17468-17483. [PMID: 18958029 DOI: 10.1364/oe.16.017468] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Magnitude and quantum yield (eta) of sun induced chlorophyll fluorescence are determined in widely varying productive waters with chlorophyll concentrations from 2- 200 mg/m(3). Fluorescence was estimated using linear fitting of in-situ measured surface reflectance with elastic and inelastic reflectance spectra. Elastic reflectance spectra were obtained from Hydrolight simulations with measured absorption and attenuation spectra as inputs. Eta is then computed based on a depth integrated fluorescence model and compared with Hydrolight calculation results. Despite the large variability of coastal environments examined the ? values are found to vary over a relatively narrow range 0.1%-1% with mean values of 0.33%+/-0.17%.
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1285
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Wang S, Marchal F, Zou Z, Zhou J, Qi S. Classification and management of chronic sialadenitis of the parotid gland. J Oral Rehabil 2008; 36:2-8. [PMID: 18976271 DOI: 10.1111/j.1365-2842.2008.01896.x] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Saliva has numerous oral functions and multiple functions in relation to digestion in the upper gastrointestinal tract. Chronic salivary hypofunction can lead to severe adverse health outcomes. Chronic sialadenitis is one of the major conditions that can cause salivary hypofunction. A correct diagnosis and management of chronic sialadenitis is essential for the recovery of salivary hypofunction. Chronic sialadenitis of the parotid gland is often seen in the clinic, sometimes also referred to as recurrent pyogenic parotitis, recurrent parotitis, non-obstructive parotitis, sialadenitis or obstructive parotitis, among other terms. The literature describes several different classifications and denominations for chronic sialadenitis of the parotid gland. These various classifications and denominations complicate the definition and diagnostic criteria, and if chronic sialadenitis of the parotid gland can develop into Sjogren's syndrome remains unclear. Treatment of this condition is also a challenging problem. Here, we review the presented classification and denomination of chronic sialadenitis of the parotid gland, proposing a classification based on the disease entities identified in a long-term follow-up investigation, and discuss the treatment principles for the condition.
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1286
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Ma Y, Cai S, Lu Q, Lu X, Jiang Q, Zhou J, Zhang C. Inhibition of protein deacetylation by trichostatin A impairs microtubule-kinetochore attachment. Cell Mol Life Sci 2008; 65:3100-9. [PMID: 18759129 PMCID: PMC11131606 DOI: 10.1007/s00018-008-8237-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Inhibition of protein deacetylation arrests cells in mitosis, but the mechanism is unknown. To understand why inhibiting protein deacetylation causes cell cycle arrest, we treated HeLa cells beyond G1/S transition with trichostatin A (TSA), a potent protein deacetylase inhibitor, and found that the cells arrested at prometaphase with ectopic spindles and unaligned chromosomes. The hyper-acetylated cells encountered a serious microtubule (MT)-kinetochore attachment problem, although the kinetochores are intact at ultrastructural level. By immunofluorescence staining of kinetochore proteins, we found that the pericentromeric H3K9Me3-HP1 pathway was disrupted and that the CENP-A-dependent outer plate protein dynamics of kinetochores was greatly diminished by the drug treatment. The treatment also caused the loss of chromosome passenger complex (CPC), the proposed error checking system, from centromere and impaired the microtubule dynamics of the cells. Overall, we propose that deacetylation inhibition impairs MT-kinetochore attachment through disrupting the centromere function and altering the kinetochore composition and MT dynamics.
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1287
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Qu XJ, Meng QX, Ai SY, Zhou J, Zhu LS. Recognition of 6-benzyladenine using a molecularly imprinted membrane on a cellulose acetate support. JOURNAL OF ANALYTICAL CHEMISTRY 2008. [DOI: 10.1134/s1061934808100134] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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1288
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Sanguineti G, Califano J, Zhou J, Stafford E, Koch W, Tufano R, Gourin C, Sormani M, Marur S, Forastiere A. Defining the Risk of Involvement for each Neck Nodal Level in Patients with Early T-stage/Node-positive Oropharyngeal Carcinoma. Int J Radiat Oncol Biol Phys 2008. [DOI: 10.1016/j.ijrobp.2008.06.506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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1289
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Zhou J, Liu DF, Liu C, Kang ZM, Shen XH, Chen YZ, Xu T, Jiang CL. Glucocorticoids inhibit degranulation of mast cells in allergic asthma via nongenomic mechanism. Allergy 2008; 63:1177-85. [PMID: 18699934 DOI: 10.1111/j.1398-9995.2008.01725.x] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
BACKGROUND Glucocorticoids (GCs) are the most potent anti-inflammatory agents available for allergic diseases including asthma, which are routinely believed to need several hours to take effect through regulating gene expression. Our previous report had shown that GCs could inhibit allergic asthma within 10 min, which the classical mechanism could not explain. OBJECTIVE To confirm the existence and verify the sites of GCs' rapid action, we investigated nongenomic effects of GCs on degranulation of mast cells in allergic asthma. METHODS The GCs' rapid action on airway mast cells deregulations was evaluated in the allergic asthma model of guinea pigs by the computer-assisted morphometry. Using whole-cell patch clamp and fluorometric assay, we examined GCs' nongenomic effect on IgE-mediated exocytosis and histamine release of rat basophilic leukaemia-2H3 mast cells. Employing the flash photolysis technique, we studied the role of Ca(2+) signal in the GCs' nongenomic effect. RESULTS Inhaled GCs significantly inhibited airway mast cells degranulation in the allergic asthma model of guinea pigs within 10 min. In vitro, GCs could rapidly inhibit IgE-mediated exocytosis and histamine release of mast cells, and neither GC nuclear receptor antagonist nor protein synthesis inhibitor could block the rapid action. We further demonstrated that GCs' nongenomic effect was not through direct action on secretory machinery, but was mediated by a reduction in the [Ca(2+)](i) elevation. CONCLUSIONS The study suggested for the first time that nongenomic pathway was involved in GCs' rapid inhibition on allergic asthma, and raised the possibility of new therapeutic strategies for allergic diseases including asthma.
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1290
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Martin R, Li S, Zhou J, Morrison C, Hutson S. Blocking of branch chain amino acid metabolism decreases hypothalamic POMC and increases AgRP expression in mice on a low fat diet. Appetite 2008. [DOI: 10.1016/j.appet.2008.04.160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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1291
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Zhou J, Hsu C, Winter J, Pawlik T, Laheru D, Akbar U, Swartz M, Schulick R, Cameron J, Herman J. Adjuvant Therapy for Ampullary Adenocarcinoma: The Johns Hopkins Experience. Int J Radiat Oncol Biol Phys 2008. [DOI: 10.1016/j.ijrobp.2008.06.629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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1292
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Basawa I, Bhat U, Zhou J. Parameter estimation using partial information with applications to queueing and related models. Stat Probab Lett 2008. [DOI: 10.1016/j.spl.2007.12.021] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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1293
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Zhou J, Kutcher G, Woodhouse S, Schiff P, Ballas L, Vance W, Zhang P, Lu Z, Pile-Spellman E, Liu T. Automated and Objective Assessments of Radiation-induced Fibrosis using Advanced Ultrasound Imaging in Breast Cancer Radiation Therapy. Int J Radiat Oncol Biol Phys 2008. [DOI: 10.1016/j.ijrobp.2008.06.1639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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1294
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Lai Y, Ma J, Schwarzenberger P, Li W, Cai Z, Zhou J, Peng Z, Yang J, Luo L, Luo J, Deng D, Li Q, Zhou Y, Liang J. Combination of CsA, MTX and low-dose, short-course mycophenolate mofetil for GVHD prophylaxis. Bone Marrow Transplant 2008; 43:61-7. [PMID: 18724395 DOI: 10.1038/bmt.2008.265] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
In an effort to reduce the incidence and severity of acute GVHD (aGVHD), we have developed a new prophylaxis regimen combining cyclosporine and MTX with a short 30-day course of low-dose (500 mg per day) mycophenolate mofetil. This regimen was studied prospectively 100 patients undergoing HLA-matched and 1-antigen-mismatched allogeneic peripheral blood SCT from related donors. The cumulative incidence of aGVHD was 16% (grades II-IV (9.5%) and grades III-IV (1%)). The cumulative incidence of chronic GVHD (cGVHD) was 53% with 28% extensive cGVHD. The cumulative incidence of transplant-related mortality at 100 days and 3 years were 6 and 13%. The estimated probabilities of disease-free survival at 3 years in standard- and high-risk patients were 77 and 30%, respectively (P<0.0001). The estimated probabilities of overall survival at 3 years in standard- and high-risk patients were 77 and 37%, respectively (P<0.0001). These data show a substantial decrease in the risk of developing aGVHD without an increase in relapse or any adverse impact on survival in standard-risk patients.
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1295
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Wang H, Zhou J. Rietveld refinement of natural fluorapatite from ultra-high pressure eclogite. Acta Crystallogr A 2008. [DOI: 10.1107/s0108767308084055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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1296
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Nathwani AC, Cochrane M, McIntosh J, Ng CYC, Zhou J, Gray JT, Davidoff AM. Enhancing transduction of the liver by adeno-associated viral vectors. Gene Ther 2008; 16:60-9. [PMID: 18701909 DOI: 10.1038/gt.2008.137] [Citation(s) in RCA: 60] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A number of distinct factors acting at different stages of the adeno-associated virus vector (AAV)-mediated gene transfer process were found to influence murine hepatocyte transduction. Foremost among these was the viral capsid protein. Self-complementary (sc) AAV pseudotyped with capsid from serotype 8 or rh.10 mediated fourfold greater hepatocyte transduction for a given vector dose when compared with vector packaged with AAV7 capsid. An almost linear relationship between vector dose and transgene expression was noted for all serotypes with vector doses as low as 1 x 10(7) vg per mouse (4 x 10(8) vg kg(-1)) mediating therapeutic levels of human FIX (hFIX) expression. Gender significantly influenced scAAV-mediated transgene expression, with twofold higher levels of expression observed in male compared with female mice. Pretreatment of mice with the proteasome inhibitor bortezomib increased scAAV-mediated hFIX expression from 4+/-0.6 to 9+/-2 microg ml(-1) in female mice, although the effect of this agent was less profound in males. Exposure of mice to adenovirus 10-20 weeks after gene transfer with AAV vectors augmented AAV transgene expression twofold by increasing the level of proviral mRNA. Hence, optimization of individual steps in the AAV gene transfer process can further enhance the potency of AAV-mediated transgene expression, thus increasing the probability of successful gene therapy.
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1297
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Chen GF, Li Z, Li G, Zhou J, Wu D, Dong J, Hu WZ, Zheng P, Chen ZJ, Yuan HQ, Singleton J, Luo JL, Wang NL. Superconducting properties of the Fe-based layered superconductor LaFeAsO0.9F0.1-delta. PHYSICAL REVIEW LETTERS 2008; 101:057007. [PMID: 18764424 DOI: 10.1103/physrevlett.101.057007] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2008] [Indexed: 05/15/2023]
Abstract
We have employed a new route to synthesize single phase F-doped LaOFeAs compound and confirmed the superconductivity above 20 K in this Fe-based system. We show that the new superconductor has a rather high upper critical field of over 50 T. A clear signature of superconducting gap opening below T(c) was observed in the far-infrared reflectance spectra, with 2Delta/kT(c) approximately 3.5-4.2. Furthermore, we show that the new superconductor has electron-type conducting carriers with a rather low-carrier density.
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1298
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Zhou J, Zhang XQ, Ashoori F, McConkey DJ, Knowles MA, Dong L, Benedict WF. Early RB94-produced cytotoxicity in cancer cells is independent of caspase activation or 50 kb DNA fragmentation. Cancer Gene Ther 2008; 16:13-9. [PMID: 18654611 DOI: 10.1038/cgt.2008.54] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
RB94, which lacks the N-terminal 112 amino-acid residues of the full-length retinoblastoma protein (RB110) is a more potent inhibitor of cancer cell growth than RB110, being cytotoxic to all cancer cell lines studied, independent of their genetic abnormalities. Although we initially thought RB94-induced cell death was caspase-dependent, such caspase activation now appears to be a late event. Cells that remained attached 48 h after transduction with Ad-RB94 showed, among other changes, nuclear enlargement, peripheral nuclear chromatin condensation and often micronucleation. In addition, the cells were TdT-mediated dUTP nick end labeling (TUNEL) positive but showed no cleavage of caspase 3 or 9. Only after the cells detached was cleavage of both caspase 3 and 9 observed. These TUNEL-positive cells showed neither cytochrome c mitochondrial translocation usually found in typical apoptotic cells nor DNA laddering indicative of oligonucleosomal DNA fragmentation. In addition, although 50 kb DNA fragmentation was produced in these TUNEL-positive cells, which was dependent on apoptosis-inducing factor (AIF), inhibiting this fragmentation by siAIF did not inhibit TUNEL formation or cytotoxicity. As RB94 will soon be used for gene therapy further understanding the molecular basis of these early changes in killing cancer cells is one of our particularly important present goals.
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1299
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Zhao Q, Kang L, Du B, Zhao H, Xie Q, Huang X, Li B, Zhou J, Li L. Experimental demonstration of isotropic negative permeability in a three-dimensional dielectric composite. PHYSICAL REVIEW LETTERS 2008; 101:027402. [PMID: 18764227 DOI: 10.1103/physrevlett.101.027402] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2007] [Revised: 04/01/2008] [Indexed: 05/26/2023]
Abstract
Isotropic negative permeability resulting from Mie resonance is demonstrated in a three-dimensional (3D) dielectric composite consisting of an array of dielectric cubes. A strong subwavelength magnetic resonance, corresponding to the first Mie resonance, was excited in dielectric cubes by electromagnetic wave. Negative permeability is verified in the magnetic resonance area via microwave measurement and the dispersion properties. The resonance relies on the size and permittivity of the cubes. It is promising for construction of novel isotropic 3D left-handed materials with a simple structure.
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1300
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Huang X, Zhuang L, Cao Y, Gao Q, Han Z, Tang D, Xing H, Zhou J, Ma D. Biodistribution and kinetics of the novel selective oncolytic adenovirus M1 after systemic administration. EJC Suppl 2008. [DOI: 10.1016/s1359-6349(08)71664-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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