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Zhao H, Huang L, Xiao C, Liu J, Wei J, Gao X. Influence of culture media and environmental factors on mycelial growth and conidial production of Diplocarpon mali. Lett Appl Microbiol 2010; 50:639-44. [DOI: 10.1111/j.1472-765x.2010.02847.x] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Ablikim M, Achasov MN, An L, An Q, An ZH, Bai JZ, Ban Y, Berger N, Bian JM, Boyko I, Briere RA, Bytev V, Cai X, Cao GF, Cao XX, Chang JF, Chelkov G, Chen G, Chen HS, Chen JC, Chen LP, Chen ML, Chen P, Chen SJ, Chen YB, Chu YP, Cronin-Hennessy D, Dai HL, Dai JP, Dedovich D, Deng ZY, Denysenko I, Destefanis M, Ding Y, Dong LY, Dong MY, Du SX, Duan MY, Fang J, Feng CQ, Fu CD, Fu JL, Gao Y, Geng C, Goetzen K, Gong WX, Greco M, Grishin S, Gu YT, Guo AQ, Guo LB, Guo YP, Han SQ, Harris FA, He KL, He M, He ZY, Heng YK, Hou ZL, Hu HM, Hu JF, Hu T, Hu XW, Huang B, Huang GM, Huang JS, Huang XT, Huang YP, Ji CS, Ji Q, Ji XB, Ji XL, Jia LK, Jiang LL, Jiang XS, Jiao JB, Jin DP, Jin S, Komamiya S, Kuehn W, Lange S, Leung JKC, Li C, Li C, Li DM, Li F, Li G, Li HB, Li J, Li JC, Li L, Li L, Li QJ, Li WD, Li WG, Li XL, Li XN, Li XQ, Li XR, Li YX, Li ZB, Liang H, Liang TR, Liang YT, Liang YF, Liao GR, Liao XT, Liu BJ, Liu CL, Liu CX, Liu CY, Liu FH, Liu F, Liu F, Liu GC, Liu H, Liu HB, Liu HM, Liu HW, Liu J, Liu JP, Liu K, Liu KY, Liu Q, Liu SB, Liu XH, Liu YB, Liu YF, Liu YW, Liu Y, Liu ZA, Lu GR, Lu JG, Lu QW, Lu XR, Lu YP, Luo CL, Luo MX, Luo T, Luo XL, Ma CL, Ma FC, Ma HL, Ma QM, Ma X, Ma XY, Maggiora M, Mao YJ, Mao ZP, Min J, Mo XH, Muchnoi NY, Nefedov Y, Ning FP, Olsen SL, Ouyang Q, Pelizaeus M, Peters K, Ping JL, Ping RG, Poling R, Pun CSJ, Qi M, Qian S, Qiao CF, Qiu JF, Rong G, Ruan XD, Sarantsev A, Shao M, Shen CP, Shen XY, Sheng HY, Sonoda S, Spataro S, Spruck B, Sun DH, Sun GX, Sun JF, Sun SS, Sun XD, Sun YJ, Sun YZ, Sun ZJ, Sun ZT, Tang CJ, Tang X, Tang XF, Tian HL, Toth D, Varner GS, Wan X, Wang BQ, Wang JK, Wang K, Wang LL, Wang LS, Wang P, Wang PL, Wang Q, Wang SG, Wang XD, Wang XL, Wang YD, Wang YF, Wang YQ, Wang Z, Wang ZG, Wang ZY, Wei DH, Wen SP, Wiedner U, Wu LH, Wu N, Wu W, Wu YM, Wu Z, Xiao ZJ, Xie YG, Xu GF, Xu GM, Xu H, Xu M, Xu M, Xu XP, Xu Y, Xu ZZ, Xue Z, Yan L, Yan WB, Yan YH, Yang HX, Yang M, Yang P, Yang SM, Yang YX, Ye M, Ye MH, Yu BX, Yu CX, Yu L, Yuan CZ, Yuan Y, Zeng Y, Zhang BX, Zhang BY, Zhang CC, Zhang DH, Zhang HH, Zhang HY, Zhang JW, Zhang JY, Zhang JZ, Zhang L, Zhang SH, Zhang XY, Zhang Y, Zhang YH, Zhang ZP, Zhao C, Zhao HS, Zhao J, Zhao J, Zhao L, Zhao L, Zhao MG, Zhao Q, Zhao SJ, Zhao TC, Zhao XH, Zhao YB, Zhao ZG, Zhemchugov A, Zheng B, Zheng JP, Zheng YH, Zheng ZP, Zhong B, Zhong J, Zhou L, Zhou ZL, Zhu C, Zhu K, Zhu KJ, Zhu QM, Zhu XW, Zhu YS, Zhu ZA, Zhuang J, Zou BS, Zou JH, Zuo JX, Zweber P. Measurements of h(c)(1P(1)) in psi' decays. PHYSICAL REVIEW LETTERS 2010; 104:132002. [PMID: 20481873 DOI: 10.1103/physrevlett.104.132002] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2010] [Indexed: 05/29/2023]
Abstract
We present measurements of the charmonium state h(c)(1P(1)) made with 106x10(6) psi' events collected by BESIII at BEPCII. Clear signals are observed for psi'-->pi0 h(c) with and without the subsequent radiative decay h(c)-->gamma eta(c). First measurements of the absolute branching ratios B(psi'-->pi0 h(c)) = (8.4+/-1.3+/-1.0) x 10(-4) and B(h(c)-->gamma eta(c)) = (54.3+/-6.7+/-5.2)% are presented. A statistics-limited determination of the previously unmeasured h(c) width leads to an upper limit Gamma(h(c))<1.44 MeV (90% confidence). Measurements of M(h(c)) = 3525.40+/-0.13+/-0.18 MeV/c2 and B(psi'-->pi0 h(c)) x B(h(c)-->gamma eta(c)) = (4.58+/-0.40+/-0.50) x 10(-4) are consistent with previous results.
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Abelev BI, Aggarwal MM, Ahammed Z, Alakhverdyants AV, Alekseev I, Anderson BD, Arkhipkin D, Averichev GS, Balewski J, Barnby LS, Baumgart S, Beavis DR, Bellwied R, Betancourt MJ, Betts RR, Bhasin A, Bhati AK, Bichsel H, Bielcik J, Bielcikova J, Biritz B, Bland LC, Bonner BE, Bouchet J, Braidot E, Brandin AV, Bridgeman A, Bruna E, Bueltmann S, Bunzarov I, Burton TP, Cai XZ, Caines H, Calderon M, 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 P, Clarke RF, Codrington MJM, Corliss R, Cramer JG, Crawford HJ, Das D, Dash S, Leyva AD, De Silva LC, Debbe RR, Dedovich TG, DePhillips M, Derevschikov AA, Derradi de Souza R, Didenko L, Djawotho P, Dogra SM, Dong X, Drachenberg JL, Draper JE, Dunlop JC, Dutta Mazumdar MR, Efimov LG, Elhalhuli E, Elnimr M, Engelage J, Eppley G, Erazmus B, Estienne M, Eun L, Evdokimov O, Fachini P, Fatemi R, Fedorisin J, Fersch RG, Filip P, Finch E, Fine V, Fisyak Y, Gagliardi CA, Gangadharan DR, Ganti MS, Garcia-Solis EJ, Geromitsos A, Geurts F, Ghazikhanian V, Ghosh P, Gorbunov YN, Gordon A, Grebenyuk O, Grosnick D, Grube B, Guertin SM, Gupta A, Gupta N, Guryn W, Haag B, Hamed A, Han LX, Harris JW, Hays-Wehle JP, Heinz M, Heppelmann S, Hirsch A, Hjort E, Hoffman AM, Hoffmann GW, Hofman DJ, Hollis RS, Huang B, Huang HZ, Humanic TJ, Huo L, Igo G, Iordanova A, Jacobs P, Jacobs WW, Jakl P, Jena C, Jin F, Jones CL, Jones PG, Joseph J, Judd EG, Kabana S, Kajimoto K, Kang K, Kapitan J, Kauder K, Keane D, Kechechyan A, Kettler D, Kikola DP, Kiryluk J, Kisiel A, Klein SR, Knospe AG, Kocoloski A, Koetke DD, Kollegger T, Konzer J, Kopytine M, Koralt I, Koroleva L, Korsch W, Kotchenda L, Kouchpil V, Kravtsov P, Krueger K, Krus M, Kumar L, Kurnadi P, Lamont MAC, Landgraf JM, LaPointe S, Lauret J, Lebedev A, Lednicky R, Lee CH, Lee JH, Leight W, Levine MJ, Li C, Li L, Li N, Li W, Li X, Li Y, Li Z, Lin G, Lindenbaum SJ, Lisa MA, Liu F, Liu H, Liu J, Ljubicic T, Llope WJ, Longacre RS, Love WA, Lu Y, Luo X, Ma GL, Ma YG, Mahapatra DP, Majka R, Mal OI, Mangotra LK, Manweiler R, Margetis S, Markert C, Masui H, Matis HS, Matulenko YA, McDonald D, McShane TS, Meschanin A, Milner R, Minaev NG, Mioduszewski S, Mischke A, Mitrovski MK, Mohanty B, Mondal MM, Morozov B, Morozov DA, Munhoz MG, Nandi BK, Nattrass C, Nayak TK, Nelson JM, Netrakanti PK, Ng MJ, Nogach LV, Nurushev SB, Odyniec G, Ogawa A, Okada H, Okorokov V, Olson D, Pachr M, Page BS, Pal SK, Pandit Y, Panebratsev Y, Pawlak T, Peitzmann T, Perevoztchikov V, Perkins C, Peryt W, Phatak SC, Pile P, Planinic M, Ploskon MA, Pluta J, Plyku D, Poljak N, Poskanzer AM, Potukuchi BVKS, Powell CB, Prindle D, Pruneau C, Pruthi NK, Pujahari PR, Putschke J, Qiu H, Raniwala R, Raniwala S, Ray RL, Redwine R, Reed R, Ritter HG, Roberts JB, Rogachevskiy OV, Romero JL, Rose A, Roy C, Ruan L, Sahoo R, Sakai S, Sakrejda I, Sakuma T, Salur S, Sandweiss J, Sangaline E, Schambach J, Scharenberg RP, Schmitz N, Schuster TR, Seele J, Seger J, Selyuzhenkov I, Seyboth P, Shahaliev E, Shao M, Sharma M, Shi SS, Sichtermann EP, Simon F, Singaraju RN, Skoby MJ, Smirnov N, Sorensen P, Sowinski J, Spinka HM, Srivastava B, Stanislaus TDS, Staszak D, Stevens JR, Stock R, Strikhanov M, Stringfellow B, Suaide AAP, Suarez MC, Subba NL, Sumbera M, Sun XM, Sun Y, Sun Z, Surrow B, Svirida DN, Symons TJM, Szanto de Toledo A, Takahashi J, Tang AH, Tang Z, Tarini LH, Tarnowsky T, Thein D, Thomas JH, Tian J, Timmins AR, Timoshenko S, Tlusty D, Tokarev M, Trainor TA, Tram VN, Trentalange S, Tribble RE, Tsai OD, Ulery J, Ullrich T, Underwood DG, Van Buren G, van Leeuwen M, van Nieuwenhuizen G, Vanfossen JA, Varma R, Vasconcelos GMS, Vasiliev AN, Videbaek F, Viyogi YP, Vokal S, Voloshin SA, Wada M, Walker M, Wang F, Wang G, Wang H, Wang JS, Wang Q, Wang XL, Wang Y, Webb G, Webb JC, Westfall GD, Whitten C, Wieman H, Wingfield E, Wissink SW, Witt R, Wu Y, Xie W, Xu H, Xu N, Xu QH, Xu W, Xu Y, Xu Z, Xue L, Yang Y, Yepes P, Yip K, Yoo IK, Yue Q, Zawisza M, Zbroszczyk H, Zhan W, Zhang J, Zhang S, Zhang WM, Zhang XP, Zhang Y, Zhang ZP, Zhao J, Zhong C, Zhou J, Zhou W, Zhu X, Zhu YH, Zoulkarneev R, Zoulkarneeva Y. Observation of an Antimatter Hypernucleus. Science 2010; 328:58-62. [DOI: 10.1126/science.1183980] [Citation(s) in RCA: 209] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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Wong DWK, Liu J, Lim JH, Tan NM, Zhang Z, Lu S, Li H, Teo MH, Chan KL, Wong TY. Intelligent fusion of cup-to-disc ratio determination methods for glaucoma detection in ARGALI. ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. ANNUAL INTERNATIONAL CONFERENCE 2010; 2009:5777-80. [PMID: 19963657 DOI: 10.1109/iembs.2009.5332534] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Glaucoma is a leading cause of permanent blindness. ARGALI, an automated system for glaucoma detection, employs several methods for segmenting the optic cup and disc from retinal images, combined using a fusion network, to determine the cup to disc ratio (CDR), an important clinical indicator of glaucoma. This paper discusses the use of SVM as an alternative fusion strategy in ARGALI, and evaluates its performance against the component methods and neural network (NN) fusion in the CDR calculation. The results show SVM and NN provide similar improvements over the component methods, but with SVM having a greater consistency over the NN, suggesting potential for SVM as a viable option in ARGALI.
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Xu L, Gai R, Wang X, Liu Z, Cheng J, Zhou C, Liu J, Zhang H, Li H, Tang W. Socio-economic factors affecting the success of tuberculosis treatment in six counties of Shandong Province, China. Int J Tuberc Lung Dis 2010; 14:440-446. [PMID: 20202302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/28/2023] Open
Abstract
SETTING Tuberculosis (TB) control in rural China is of high priority in health policy making. OBJECTIVE To investigate treatment success among rural TB patients and the determinants of patient and case management and to explore the current status of DOTS implementation in rural China. METHODS A patient-based study was conducted in six counties of Shandong Province, China. Study sites were selected by multi-stage random sampling. Subjects were rural smear-positive pulmonary TB patients registered with the county TB dispensaries at study sites who completed treatment during the period October 2006 to September 2007. RESULTS This study observed a success rate of 74.5% among 501 participants. The cure rate, of 50.5%, was much lower than the national level. There was a difference in treatment success rates across counties. Factors independently affecting treatment success were patient income, study site, and home visits and supervision by town and village health workers. CONCLUSIONS Enhancing financial resources for TB control and effective involvement of human resources are crucial to achieving success with the DOTS strategy in rural China.
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Zhang J, Song Y, Liu J. Talk to the hand: The visual word form area responds to bodies and faces. J Vis 2010. [DOI: 10.1167/9.8.459] [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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Liu J, Lu Z, Dosher B. Augmented Hebbian Learning Hypothesis in Perceptual Learning: Interaction between feedback and training accuracy. J Vis 2010. [DOI: 10.1167/8.6.1124] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Harris AM, Liu J, Duchaine BC, Nakayama K. Characterizing face processing in developmental prosopagnosia using magnetoencephalography. J Vis 2010. [DOI: 10.1167/3.9.829] [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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Liu J, Palomares M, Leonard C, Egeth H. Subitizing capacity is decreased when visual short-term memory capacity is exceeded. J Vis 2010. [DOI: 10.1167/5.8.623] [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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Liu J, Newsome WT. Correlation between MT activity and behavioral judgment of visual speed in macaque monkeys. J Vis 2010. [DOI: 10.1167/3.9.199] [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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3036
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Liu J, Harris A, Kanwisher N. What makes a face a face: an MEG and fMRI study. J Vis 2010. [DOI: 10.1167/1.3.340] [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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Giampietro PF, McCarty C, Mukesh B, McKiernan F, Wilson D, Shuldiner A, Liu J, LeVasseur J, Ivacic L, Kitchner T, Ghebranious N. The role of cigarette smoking and statins in the development of postmenopausal osteoporosis: a pilot study utilizing the Marshfield Clinic Personalized Medicine Cohort. Osteoporos Int 2010; 21:467-77. [PMID: 19506792 DOI: 10.1007/s00198-009-0981-3] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2009] [Accepted: 04/23/2009] [Indexed: 01/31/2023]
Abstract
SUMMARY A cohort of postmenopausal osteoporotic females and controls with normal bone mineral density, the interleukin 6 (IL6) -634G > C (rs1800796) C allele of the promoter region showed association with osteoporosis. The lipoprotein receptor-related protein 5 (LRP5) gene showed association between C135242T C/T alleles and osteoporosis only in smokers, suggesting a role for environmental interaction. INTRODUCTION A nested case-control study within a population-based cohort was undertaken to assess the relative impact of cigarette smoking, statin use, genetic polymorphisms, and one-way interaction of these factors on development of osteoporosis in postmenopausal women. METHODS Genotyping of 14 single-nucleotide polymorphisms (SNPs) corresponding to vitamin D receptor gene, estrogen receptor 1, collagen type 1 alpha 1, IL6, transcription growth factor beta, apolipoprotein E, and LRP5 genes was performed in cases (n = 309) with osteoporosis and controls (n = 293) with normal bone mineral density drawn from a homogeneous Caucasian population. SNPs were chosen based on known functional consequences or prior evidence for association and genotyped using matrix-assisted laser desorption ionization time-of-flight technology. RESULTS Cases differed from controls relative to body mass index, age, and smoking but not statin use. After adjusting for age, the IL6 -634G > C (rs1800796) allele showed association with osteoporosis (odds ratio (OR) for CC + CG = 2.51, p = 0.0047)), independent of statin use or smoking status. On stratification for smoking, association with LRP5 C135242T (rs545382) and osteoporosis emerged (OR 2.8 in smokers for CT alleles, p = 0.03)), suggestive of potential environmental interaction. CONCLUSION Evidence suggested a role for genetic variation in IL6 and LRP5 in conferring risk for osteoporosis in Caucasian women, with the latter manifest only in smokers.
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Schmidt GP, Jerebko AK, Zhou X, Bi J, Anand V, Liu J, Schoenberg SO, Schmuecking I, Kiefer B, Reiser M. Entwicklung eines computergestützten Systems zur Detektion von Skelettmetastasen in der MRT-STIR-Bildgebung der Wirbelsäule. ROFO-FORTSCHR RONTG 2010. [DOI: 10.1055/s-0030-1252848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Liu Y, Namba T, Liu J, Suzuki R, Shioda S, Seki T. Glial fibrillary acidic protein-expressing neural progenitors give rise to immature neurons via early intermediate progenitors expressing both glial fibrillary acidic protein and neuronal markers in the adult hippocampus. Neuroscience 2010; 166:241-51. [DOI: 10.1016/j.neuroscience.2009.12.026] [Citation(s) in RCA: 92] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2009] [Revised: 12/08/2009] [Accepted: 12/09/2009] [Indexed: 12/16/2022]
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Verheyden B, Liu J, Beckers F, Aubert AE. Operational point of neural cardiovascular regulation in humans up to 6 months in space. J Appl Physiol (1985) 2010; 108:646-54. [DOI: 10.1152/japplphysiol.00883.2009] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Entering weightlessness affects central circulation in humans by enhancing venous return and cardiac output. We tested whether the operational point of neural cardiovascular regulation in space sets accordingly to adopt a level close to that found in the ground-based horizontal position. Heart rate (HR), finger blood and brachial blood pressure (BP), and respiratory frequency were collected in 11 astronauts from nine space missions. Recordings were made in supine and standing positions at least 10 days before launch and during spaceflight ( days 5– 19, 45– 67, 77– 116, 146– 180). Cross-correlation analyses of HR and systolic BP were used to measure three complementary aspects of cardiac baroreflex modulation: 1) baroreflex sensitivity, 2) number of effective baroreflex estimates, and 3) baroreflex time delay. A fixed breathing protocol was performed to measure respiratory sinus arrhythmia and low-frequency power of systolic BP variability. We found that HR and mean arterial pressure did not differ from preflight supine values for up to 6 mo in space. Respiration frequency tended to decrease during prolonged spaceflight. Concerning neural markers of cardiovascular regulation, we observed in-flight adaptations toward homeostatic conditions similar to those found in the ground-based supine position. Surprisingly, this was not the case for baroreflex time delay distribution, which had somewhat longer latencies in space. Except for this finding, our results confirm that the operational point of neural cardiovascular regulation in space sets to a level close to that of an Earth-based supine position. This adaptation level suggests that circulation is chronically relaxed for at least 6 mo in space.
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Xiao L, Gong LL, Yuan D, Deng M, Zeng XM, Chen LL, Zhang L, Yan Q, Liu JP, Hu XH, Sun SM, Liu J, Ma HL, Zheng CB, Fu H, Chen PC, Zhao JQ, Xie SS, Zou LJ, Xiao YM, Liu WB, Zhang J, Liu Y, Li DWC. Protein phosphatase-1 regulates Akt1 signal transduction pathway to control gene expression, cell survival and differentiation. Cell Death Differ 2010; 17:1448-62. [PMID: 20186153 DOI: 10.1038/cdd.2010.16] [Citation(s) in RCA: 66] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
AKT pathway has a critical role in mediating signaling transductions for cell proliferation, differentiation and survival. Previous studies have shown that AKT activation is achieved through a series of phosphorylation steps: first, AKT is phosphorylated at Thr-450 by JNK kinases to prime its activation; then, phosphoinositide-dependent kinase 1 phosphorylates AKT at Thr-308 to expose the Ser-473 residue; and finally, AKT is phosphorylated at Ser-473 by several kinases (PKD2 and others) to achieve its full activation. For its inactivation, the PH-domain containing phosphatases dephosphorylate AKT at Ser-473, and protein serine/threonine phosphatase-2A (PP-2A) dephosphorylates it at Thr-308. However, it remains unknown regarding which phosphatase dephosphorylates AKT at Thr-450 during its inactivation. In this study, we present both in vitro and in vivo evidence to show that protein serine/threonine phosphatase-1 (PP-1) is a major phosphatase that directly dephosphorylates AKT to modulate its activation. First, purified PP-1 directly dephosphorylates AKT in vitro. Second, immunoprecipitation and immunocolocalization showed that PP-1 interacts with AKT. Third, stable knock down of PP-1alpha or PP-1beta but not PP-1gamma, PP-2Aalpha or PP-2Abeta by shRNA leads to enhanced phosphorylation of AKT at Thr-450. Finally, overexpression of PP-1alpha or PP-1beta but not PP-1gamma, PP-2Aalpha or PP-2Abeta results in attenuated phosphorylation of AKT at Thr-450. Moreover, our results also show that dephosphorylation of AKT by PP-1 significantly modulates its functions in regulating the expression of downstream genes, promoting cell survival and modulating differentiation. These results show that PP-1 acts as a major phosphatase to dephosphorylate AKT at Thr-450 and thus modulate its functions.
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Liu J, Man WY, Lv CZ, Song SP, Shi YJ, Elias PM, Man MQ. Epidermal permeability barrier recovery is delayed in vitiligo-involved sites. Skin Pharmacol Physiol 2010; 23:193-200. [PMID: 20185976 DOI: 10.1159/000288166] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2009] [Accepted: 01/07/2010] [Indexed: 01/17/2023]
Abstract
BACKGROUND/OBJECTIVES Prior studies have demonstrated that both the skin surface pH and epidermal permeability barrier function vary with skin pigmentation types. Although melanin deficiency is the main feature of vitiligo, alterations in cutaneous biophysical properties in vitiligo have not yet been well defined. In the present study, stratum corneum (SC) hydration, the skin surface pH and epidermal permeability barrier function in vitiligo were evaluated. METHODS A total of 30 volunteers with vitiligo comprising 19 males and 11 females aged 13-51 years (mean age: 27.91 +/- 2.06 years) were enrolled in this study. The skin surface pH, SC hydration, melanin/erythema index and transepidermal water loss (TEWL) were measured by respective probes connected to a Courage-Khazaka MPA5. SC integrity was determined by measuring the TEWL following each D-Squame application. The barrier recovery rate was assessed at 5 h following barrier disruption by repeated tape stripping. RESULTS In addition to SC hydration, both melanin and erythema index were significantly lower in vitiligo lesions than in contralateral, nonlesional sites, while no difference in skin surface pH between vitiligo-involved and uninvolved areas was observed. In addition, neither the basal TEWL nor SC integrity in the involved areas differed significantly from that in the uninvolved areas. However, barrier recovery in vitiligo-involved sites was significantly delayed in comparison with uninvolved sites (40.83 +/- 5.39% vs. 58.30 +/- 4.71%; t = 2.441; p < 0.02). CONCLUSION Barrier recovery following tape stripping of the SC is delayed in vitiligo. Therefore, improvement in epidermal permeability barrier function may be an important unrecognized factor to be considered in treating patients with vitiligo.
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Fan JL, Zhang SD, Lu JC, Liu J, Zhang XL, Ding YQ, Chang YF. Separation of hafnium from tungsten by extraction chromatography with TOA in HCl–H2O2 mixture. J Radioanal Nucl Chem 2010. [DOI: 10.1007/s10967-010-0481-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Merlin MA, Moon J, Krimmel J, Liu J, Marques-Baptista A. Improving medical students' understanding of prehospital care through a fourth year emergency medicine clerkship. Emerg Med J 2010; 27:147-50. [DOI: 10.1136/emj.2008.066654] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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3045
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Liu J, Li B, Zhu B, Fu R, Yuan L, Huang W, Ma M. Study on properties and aggregation structures of deacetylated konjac glucomannan/chitosan hydrochloride absorbent blend gel films. J Appl Polym Sci 2010. [DOI: 10.1002/app.31123] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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3046
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Bi X, Guo N, Jin J, Liu J, Feng H, Shi J, Xiang H, Wu X, Dong J, Hu H, Yan S, Yu C, Wang X, Deng X, Yu L. The global gene expression profile of the model fungusSaccharomyces cerevisiaeinduced by thymol. J Appl Microbiol 2010; 108:712-22. [DOI: 10.1111/j.1365-2672.2009.04470.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Rui X, Ding N, Liu J, Li C, Chen C. Analysis of the chemical diffusion coefficient of lithium ions in Li3V2(PO4)3 cathode material. Electrochim Acta 2010. [DOI: 10.1016/j.electacta.2009.11.096] [Citation(s) in RCA: 484] [Impact Index Per Article: 34.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Liu J, Bian Z, Kuijpers-Jagtman AM, Von den Hoff JW. Skin and oral mucosa equivalents: construction and performance. Orthod Craniofac Res 2010; 13:11-20. [DOI: 10.1111/j.1601-6343.2009.01475.x] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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Liu J, Pukiat S, Hahn T, McCarthy BM, Jr P. The Ancestral Haplotype A1B8DR3 Is Associated With Increased Incidence Of Pulmonary Complications After Allogeneic Hematopoietic Cell Transplantation (HCT). Biol Blood Marrow Transplant 2010. [DOI: 10.1016/j.bbmt.2009.12.354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Liu Y, Xiao S, Liu J, Zhou H, Liu Z, Xin Y, Suo WZ. An experimental study of acute radiation-induced cognitive dysfunction in a young rat model. AJNR Am J Neuroradiol 2010; 31:383-7. [PMID: 19833794 DOI: 10.3174/ajnr.a1801] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Radiation-induced cognitive dysfunction is a common and serious clinical complication after radiation therapy for a brain tumor, but the knowledge of its mechanism is poorly understood. The purpose of this study was to establish a young rat model for acute radiation-induced cognitive dysfunction and associated BBB damage, as well as histopathologic changes. MATERIALS AND METHODS Young male rats were randomized into 4 groups to receive irradiation treatments at 300 cGy/min with doses of 0 (sham), 10, 20, and 40 Gy, respectively. Each treatment group was further randomized into 4 subgroups for following up cognitive tests and assessment of their BBB integrity and potential histopathologic changes at 0, 7, 20, and 60 days. RESULTS We found that irradiation at 10 Gy failed to induce any significant effects. Irradiation at 20 Gy resulted in a transient impairment of the cognitive functions at 7 and 20 days and returned to normal at 60 days. Irradiation at 40 Gy caused the severest cognitive impairment, which peaked at 7 days, and lasted for at least 60 days. The impaired cognition in both the 20-Gy and 40-Gy-irradiated rats was more or less accompanied with increased brain water content and deteriorated BBB function, though mild histopathologic alternations were only noticed in the 40-Gy-irradiated rats at 20 days. CONCLUSION A single-dose exposure at 20 to 40 Gy is sufficient to induce acute brain injury at both cognitive and pathologic levels in young male rats. In addition, morphologic outcomes may not be sensitive enough to reveal all of the pathologic changes, whereas BBB disruption may be an earlier and more sensitive index for acute RE. Therefore, the present model is useful for basic and therapeutic studies of acute RE.
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