951
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Lii CK, Chai YC, Zhao W, Thomas JA, Hendrich S. S-thiolation and irreversible oxidation of sulfhydryls on carbonic anhydrase III during oxidative stress: a method for studying protein modification in intact cells and tissues. Arch Biochem Biophys 1994; 308:231-9. [PMID: 8311458 DOI: 10.1006/abbi.1994.1033] [Citation(s) in RCA: 65] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
S-thiolation of carbonic anhydrase III (CA III) in cultured rat hepatocytes under oxidative stress was studied by immunodetection on nitrocellulose blots of isoelectrofocusing gels. In cells treated with menadione, three S-thiolated forms of CA III were detected, whereas only two forms were observed in hepatocytes treated with t-butyl hydroperoxide. Two "nonreducible" oxidized forms of CA III were also detected on nitrocellulose blots. These forms increased with the amount of stress and were the only modified forms of CA III in buthionine sulfoxide-treated hepatocytes containing 10-fold less glutathione than control hepatocytes. These experiments support the concept that S-thiolation protects CA III from irreversible oxidation during oxidative stress. Partly and fully S-thiolated forms of CA III were easily detected in both male and female hepatocytes by the immunoblotting method, although female cells contained 15-fold less CA III than did male liver. S-thiolated forms of CA III were also detected in rat skeletal muscle and heart showing the utility of this method for determining the effect of oxidative stress on specific S-thiolatable protein in several tissues in vivo.
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952
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Aoyama T, Zhao W, Kojima F, Muraoka Y, Naganawa H, Takeuchi T, Aoyagi T. Cysfluoretin, a new inhibitor of glutathione S-transferase, produced by Streptomyces sp. MI384-DF12. J Antibiot (Tokyo) 1993; 46:1471-4. [PMID: 8226325 DOI: 10.7164/antibiotics.46.1471] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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953
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Zhao W, Beintema JJ, Hofsteenge J, Nevo E. The primary structure of pancreatic ribonuclease from mole rat superspecies Spalax leucodon. Mol Phylogenet Evol 1993; 2:270-3. [PMID: 8136926 DOI: 10.1006/mpev.1993.1025] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
The primary structure of pancreatic ribonuclease of the superspecies Spalax leucodon has been determined. Only one difference with the previously determined sequence of the superspecies Spalax ehrenbergi was detected; the proline residue at position 42 has been replaced by alanine. Proline-42 is a well-conserved residue in mammalian pancreatic ribonucleases; the only other species with alanine at this position is the three-toed sloth. As the Muridae and the Spalacidae diverged 20-40 million years ago and the superspecies S. leucodon and S. ehrenbergi about 1-2 million years ago, and as pancreatic ribonuclease exhibits 24 substitutions in the line from the Muridae/Spalacidae ancestor to Spalax, a difference of one amino residue between the sequences of the two Spalax superspecies is what may be expected.
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954
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Zhou WL, Zhao W, Zhou YQ, Fung KK, Chen LQ. Textured thin film of C 60grown by vacuum deposition. Acta Crystallogr A 1993. [DOI: 10.1107/s0108767378090029] [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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955
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Christ GJ, Brink PR, Zhao W, Moss J, Gondré CM, Roy C, Spray DC. Gap junctions modulate tissue contractility and alpha 1 adrenergic agonist efficacy in isolated rat aorta. J Pharmacol Exp Ther 1993; 266:1054-65. [PMID: 8102641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
Immunocytochemical analysis, using antibodies directed against connexin43, revealed abundant gap junctions between smooth muscle cells in intact aorta from Fischer 344 rats. Therefore, the authors evaluated the potential contribution of these intercellular junctions to contractile responses elicited by alpha 1 adrenergic receptor activation in rat aortic rings. Preincubation with the selective junctional uncoupling agent heptanol (200 microM) diminished the magnitude of contractions induced by the low-efficacy partial agonist oxymetazoline (1-3 microM) by 50.6 +/- 4.5% (P < .01; n = 16 rings from 16 rats) but had no effect on equivalent contractions induced by the high-efficacy agonist phenylephrine (0.1 microM; n = 16 rings from 16 animals). Reduced phenylephrine contractility was observed at higher heptanol concentrations (500 microM). However, neither 200 nor 500 microM heptanol altered the magnitude of contractions elicited by 60 mM KCl, indicating that tissue contractility per se was unaffected by heptanol. In calcium-free solution, the magnitude of the phasic contraction induced by phenylephrine was three-fold greater than the magnitude of the oxymetazoline-induced phasic contraction (P < .001) but the phasic responses to both agonists were unaffected by the same heptanol concentrations that significantly diminished their steady-state responses. Because heptanol, at the concentrations used, has selective pharmacological actions on gap junctions, these studies provide additional support for a role of gap junctions in the maintenance and modulation of vasomotor tone. In rat aorta, junctional transfer of alpha 1 adrenergic-receptor activated second-messenger molecules appears to be an important modulator of tissue contractility and agonist efficacy.
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956
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Zhao W, Rafailovich MH, Sokolov J, Fetters LJ, Plano R, Sanyal MK, Sinha SK, Sauer BB. Wetting properties of thin liquid polyethylene propylene films. PHYSICAL REVIEW LETTERS 1993; 70:1453-1456. [PMID: 10053296 DOI: 10.1103/physrevlett.70.1453] [Citation(s) in RCA: 56] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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957
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Buskulic D, Decamp D, Goy C, Lees JP, Minard MN, Mours B, Pietrzyk B, Alemany R, Ariztizabal F, Comas P, Crespo JM, Delfino M, Fernandez E, Fernandez-Bosman M, Gaitan V, Garrido L, Mattison T, Pacheco A, Padilla C, Pascual A, Creanza D, Palma M, Farilla A, Iaselli G, Maggi G, Maggi M, Natali S, Nuzzo S, Quattromini M, Ranieri A, Raso G, Romano F, Ruggieri F, selvaggi G, Silvestris L, Tempesta P, Zito G, Chai Y, Hu H, Huang D, Huang X, Lin J, Wang T, Xie Y, Xu D, Xu R, Zhang J, Zhang L, Zhao W, Bauerdick LAT, Blucher E, Bonvicini G, Boudreau J, Casper D, Drevermann H, Forty RW, Ganis G, Gay C, Hagelberg R, Harvey J, Haywood S, Hilgart J, Jacobsen R, Jost B, Knobloch J, Lehraus I, Lohse T, Lusiani A, Martinez M, Mato P, Meinhard H, Minten A, Miotto A, Miquel R, Moser HG, Palazzi P, Perlas JA, Pusztaszeri JF, Ranjard F, Redlinger G, Rolandi L, Rothberg J, Ruan T, Saich M, Schlatter D, Schmelling M, Sefkow F, Tejessy W, Wachsmuth H, Wiedenmann W, Wildish T, Witzeling W, Wotschack J, Ajaltouni Z, Badaud F, Bardadin-Otwinowska M, Fellous R, Falvard A, Gay P, Guicheney C, Henrard P, Jousset J, Michel B, Montret JC, Pallin D, Perret P, Podlyski F, Proriol J, Prulhière F, Saadi F, Fearnley T, Hansen JD, Hansen JR, Hansen PH, Møllerud R, Nilsson BS, Efthymiopoulos I, Kyriakis A, Simopoulou E, Vayaki A, Zachariadou K, Badier J, Blondel A, Bonneaud G, Brient JC, Fouque G, Orteu S, Rougé A, Rumpf M, Tanaka R, Verderi M, Videau H, Candlin DJ, Parsons MI, Veitch E, Moneta L, Parrini G, Corden M, Georgiopoulos C, Ikeda M, Lannutti J, Levinthal D, Mermikides M, Sawyer L, Wasserbaech S, Antonelli A, Baldini R, Bencivenni G, Bologna G, Bossi F, Campana P, Capon G, Cerutti F, Chiarella V, D'Ettorre-Piazzoli B, Felici G, Laurelli P, Mannocchi G, Murtas F, Murtas GP, Passalacqua L, Pepe-Altarelli M, Picchi P, Colrain P, Have I, Lynch JG, Maitland W, Morton WT, Raine C, Reeves P, Scarr JM, Smith K, Smith MG, Thompson AS, Turnbull RM, Brandl B, Braun O, Geweniger C, Hanke P, Hepp V, Kluge EE, Maumary Y, Putzer A, Rensch B, Stahl A, Tittel K, Wunsch M, Belk AT, Beuselinck R, Binnie DM, Cameron W, Cattaneo M, Colling DJ, Dornan PJ, Dugeay S, Greene AM, Hassard JF, Lieske NM, Nash J, Payne DG, Phillips MJ, Sedgbeer JK, Tomalin IR, Wright AG, Girtler P, Kneringer E, Kuhn D, Rudolph G, Bowdery CK, Brodbeck TJ, Finch AJ, Foster F, Hughes G, Jackson D, Keemer NR, Nuttall M, Patel A, Sloan T, Snow SW, Whelan EP, Kleinknecht K, Raab J, Renk B, Sander HG, Schmidt H, Steeg F, Walther SM, Wanke R, Wolf B, Adlung S, Assmann R, Bauer C, Blum W, Brown D, Cattaneo P, Dehning B, Dietl H, Dydak F, Frank M, Halley AW, Lauber J, Lütjens G, Lutz G, Männer W, Richter R, Rotscheidt H, Schröder J, Schwarz AS, Settles R, Seywerd H, Stierlin U, Stiegler U, Denis RS, Wolf G, Boucrot J, Callot O, Cordier A, Davier M, Duflot L, Grivaz JF, Heusse P, Jaffe DE, Janot P, Kim DW, Diberder F, Lefrançois J, Lutz AM, Schune MH, Veillet JJ, Videau I, Zhang Z, Abbaneo D, Bagliesi G, Batignani G, Bosisio L, Bottigli U, Bozzi C, Calderini G, Carpinelli M, Ciocci MA, Dell'Orso R, Ferrante I, Fidecaro F, Foà L, Focardi E, Forti F, Giassi A, Giorgi MA, Gregorio A, Ligabue F, Mannelli EB, Marrocchesi PS, Messineo A, Palla F, Rizzo G, Sanguinetti G, Spagnolo P, Steinberger J, Tenchini R, Tonelli G, Griggiani G, Vannini C, Venturi A, Verdini PG, Walsh J, Betteridge AP, Carter JM, Green MG, March PV, Mir LM, Medcalf T, Quazi IS, Strong JA, West LR, Aubert JJ, Bencheikh AM, Benchouk C, Bonissent A, Carr J, Coyle P, Drinkard J, Etienne F, Nicod D, Papalexiou S, Payre P, Roos L, Rousseau D, Schwemling P, Talby M, Botterill DR, Clift RW, Edgecock TR, Edwards M, Fisher SM, Jones TJ, Norton PR, Salmon DP, Thompson JC, Bloch-Devaux B, Colas P, Duarte H, Kozanecki W, Lançon E, Lemaire MC, Locci E, Perez P, Perrier F, Rander J, Renardy JF, Rosowsky A, Roussarie A, Schuller JP, Schwindling J, Mohand D, Vallage B, Johnson RP, Litke AM, Taylor G, Wear J, Ashman JG, Babbage W, Booth CN, Buttar C, Carney RE, Cartwright S, Combley F, Hatfied F, Thompson LF, Barberio E, Böhrer A, Brandt S, Cowan G, Grupen C, Lutters G, Rivera F, Schäfer U, Smolik L, Della Marina R, Giannini G, Gobbo B, Ragusa F, Bellantoni L, Chen W, Cinabro D, Conway JS, Cowen DF, Feng Z, Ferguson DPS, Gao YS, Grahl J, Harton JL, Jared RC, LeClaire BW, Lishka C, Pan YB, Pater JR, Saadi Y, Sharma V, Schmitt M, Shi ZH, Walsh AM, Weber FV, Sau Lan Wu, Wu X, Zheng M, Zobernig G. Update of electroweak parameters fromZ decays. ACTA ACUST UNITED AC 1993. [DOI: 10.1007/bf01650432] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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958
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Corbett JA, Wang JL, Misko TP, Zhao W, Hickey WF, McDaniel ML. Nitric oxide mediates IL-1 beta-induced islet dysfunction and destruction: prevention by dexamethasone. Autoimmunity 1993; 15:145-53. [PMID: 7692996 DOI: 10.3109/08916939309043889] [Citation(s) in RCA: 55] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Nitric oxide has recently been implicated as a cellular molecule that mediates interleukin-1 beta (IL-1 beta)-induced inhibition of glucose-stimulated insulin secretion by islets of Langerhans. In this study evidence is presented which demonstrates that islets contain both the cytokine inducible and the constitutive isoforms of nitric oxide synthase as determined by NADPH diaphorase staining and immunohistochemical localization. Untreated islets contain NADPH diaphorase activity, and the intensity of NADPH diaphorase staining is dramatically increased after culture for 18 hrs with IL-1 beta. Both control and IL-1 beta-induced NADPH diaphorase staining of islets is inhibited by the nitric oxide synthase inhibitor NG-monomethyl-L-arginine (NMMA). Importantly, approximately 60-70% of islet cells stained positive for NADPH diaphorase (under both IL-1 beta treated and control conditions), suggesting that a subset of islet cells contain nitric oxide synthase. The beta-cell appears to be the endocrine cell type which contains constitutive nitric oxide synthase as demonstrated by immunohistochemical co-localization of constitutive nitric oxide synthase and insulin. IL-1 beta is believed to stimulate the expression of cytokine inducible nitric oxide synthase because the synthetic glucocorticoid, dexamethasone, prevents IL-1 beta induced inhibition of glucose stimulated insulin secretion and cGMP accumulation by islets. Both dexamethasone, and the nitric oxide synthase inhibitors NMMA and aminoguanidine also prevent IL-1 beta induced islet degeneration. These results indicate that nitric oxide produced by the inducible isoform of nitric oxide synthase mediates cytokine induced islet dysfunction and destruction, and that the beta-cell is the islet endocrine cellular source of constitutive nitric oxide synthase.
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959
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Zhao W, Young TY, Ginsberg MD. Registration and three-dimensional reconstruction of autoradiographic images by the disparity analysis method. IEEE TRANSACTIONS ON MEDICAL IMAGING 1993; 12:782-791. [PMID: 18218474 DOI: 10.1109/42.251130] [Citation(s) in RCA: 51] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Quantitative autoradiography is a powerful radioisotopic-imaging method for neuroscientists to study local cerebral blood flow and glucose-metabolic rate at rest, in response to physiologic activation of the visual, auditory, somatosensory, and motor systems, and in pathologic conditions. Most autoradiographic studies analyze glucose utilization and blood flow in two-dimensional (2D) coronal sections. With modern digital computer and image-processing techniques, a large number of closely spaced coronal sections can be stacked appropriately to form a three-dimensional (3D) image. 3D autoradiography allows investigators to observe cerebral sections and surfaces from any viewing angle. A fundamental problem in 3D reconstruction is the alignment (registration) of the coronal sections. A new alignment method based on disparity analysis is presented, which can overcome many of the difficulties encountered by previous methods. The disparity analysis method can deal with asymmetric, damaged, or tilted coronal sections under the same general framework, and it can be used to match coronal sections of different sizes and shapes. Experimental results on alignment and 3D reconstruction are presented.
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960
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Evans EF, Zhao W. Varieties of inhibition in the processing and control of processing in the mammalian cochlear nucleus. PROGRESS IN BRAIN RESEARCH 1993; 97:117-26. [PMID: 7901869 DOI: 10.1016/s0079-6123(08)62269-4] [Citation(s) in RCA: 41] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Seven-barrel micropipettes were used to apply drugs microiontophoretically to single units in the dorsal cochlear nucleus (DCN) in chloralose-anaesthetised guinea-pigs. While both agonists and antagonists of putative neurotransmitters in the cochlear nucleus have been investigated in these experiments, the main thrust has been to explore the influence of specific antagonists on cells' spectral and temporal properties, thus elucidating the effects of naturally occurring inhibitory transmitters. At least five types of inhibition appear to be pharmacologically/physiologically separable: (1) Stimulus-evoked tonic "lateral/sideband" inhibition: glycinergic; (blocked by strychnine); responsible for the lateral inhibition of dorsal cochlear nucleus (DCN) type III and IV cells. Strychnine has its predominant effect on sustained (lateral) inhibition compared with the more transient forms of inhibition. Subtraction of receptive field maps enables us to visualise the extent of the inhibitory receptive field. It extends virtually throughout the unit's response field for both these classes but is generally, especially in type IV cells, maximal at the characteristic frequency (CF). This type of inhibition will primarily be responsible for enhancing spectral contrasts in the way that, in the visual system, surround inhibition enhances visual contrast. Furthermore, lateral inhibitory sidebands can "bias" the "working point" of a cell's response so that the dynamic range of effective stimuli and response can be extended. (2) "Background" tonic inhibition: GABAAergic; (blocked by bicuculline). Blocking this inhibition generally results in an increase in the background (i.e., spontaneous) activity. This inhibition is probably responsible for adjusting excitatory-inhibitory contrasts in both spectral and temporal domains. (3) Stimulus-related off-inhibition appears to be neither glycinergic nor GABAAergic. Blocking these receptors actually enhances off-inhibition. Nicotinic cholinergic blockers may have a small effect on off-inhibition, but so far we have not been able to block it entirely. This off-inhibition is important for enhancing temporal contrast. This inhibition must, therefore, be mediated by other transmitters, yet undetermined, or by a local feedback circuit or, less likely, be a membrane-based after-effect of stimulation. (4) Pre-synaptic inhibition, mediated by GABAB receptors presumed to act on primary afferent terminals, thus controlling afferent input to DCN principal cells. (5) Short-latency contralateral inhibition, mediated by glycine.
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961
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Zhao W, Zhao X, Sokolov J, Rafailovich MH, Sanyal MK, Sinha SK, Cao BH, Kim MW, Sauer BB. Diffuse x‐ray scattering study of toluene and polybromostyrene PBrS/toluene solutions. J Chem Phys 1992. [DOI: 10.1063/1.463371] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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962
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Zhao X, Zhao W, Zheng X, Rafailovich MH, Sokolov J, Schwarz SA, Pudensi MA, Russell TP, Kumar SK, Fetters LJ. Configuration of grafted polystyrene chains in the melt: Temperature and concentration dependence. PHYSICAL REVIEW LETTERS 1992; 69:776-779. [PMID: 10047030 DOI: 10.1103/physrevlett.69.776] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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963
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Zhao W. [Image-analysis of salivary tumors]. ZHONGHUA YI XUE ZA ZHI 1992; 72:491-3, 511. [PMID: 1337726] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The image analysis of 49 cases of salivary tumors showed that the cellular DNA content of most tumors (42/49) was diploidy and near diploidy. The heteroploidy rate was only 14.29% (7/49), which may be related to such clinical behaviors of salivary tumors as slow growth, relative low invasivity and metastatic ability. Among these morphologic parameters, nuclear perim and form PE were closely correlated with the malignancy of salivary tumors, the former was positive and the latter was negative. The insignificant nuclear heteromorphous appearance of adenoid cystic carcinoma and its relatively high cellular DNA content may be related to strong invasivity and metastatic ability. In conclusion, these parameters of DNA content and nuclear morphology supplied by image analysis are of value in the diagnosis of salivary tumors.
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964
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Schwarz S, Wilkens B, Pudensi M, Rafailovich M, Sokolov J, Zhao X, Zhao W, Zheng X, Russell T, Jones R. Studies of surface and interface segregation in polymer blends by secondary ion mass spectrometry. Mol Phys 1992. [DOI: 10.1080/00268979200101771] [Citation(s) in RCA: 61] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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965
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Zhao W, Bourkoff E. Distributed fiber sensing by using nonlinearly induced polarization coupling. OPTICS LETTERS 1992; 17:856. [PMID: 19794653 DOI: 10.1364/ol.17.000856] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
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966
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Buskulic D, Decamp D, Goy C, Lees JP, Minard MN, Mours B, Alemany R, Ariztizabal F, Comas P, Crespo JM, Delfino M, Fernandez E, Gaitan V, Garrido L, Mir LM, Pacheco A, Pascual A, Creanza D, Plama M, Farilla A, Iaselli G, Maggi G, Maggi M, Natali S, Nuzzo S, Quattromini M, Ranieri A, Raso G, Romano F, Ruggieri F, Selvaggi G, Silvestris L, Tempesta P, Zito G, Gao Y, Hu H, Huang D, Huang X, Lin J, Lou J, Qiao C, Wang T, Xie Y, Xu D, Xu R, Zhang J, Zhao W, Atwood WB, Bauerdick LAT, Blucher E, Bonvicini G, Bossi F, Boudreau J, Burnett TH, Drevermann H, Forty RW, Hagelberg R, Harvey J, Haywood S, Hilgart J, Jacobsen R, Jost B, Knobloch J, Lan�on E, Lehraus I, Lohse T, Lusiani A, Martinez M, Mato P, Mattison T, Meinhard H, Menary S, Meyer T, Minten A, Miotto A, Miquel R, Moser HG, Nash J, Palazzi P, Perlas JA, Ranjard G, Redlinger G, Rolandi L, Roth A, Rothberg J, Ruan T, Saich M, Schlatter D, Schmelling M, Sefkow F, Tejessy W, Wachsmuth H, Wiedenmann W, Wildish T, Witzeling W, Wotschak J, Ajaltouni Z, Badaud F, Bardadin-Otwinowska M, Bencheikh AM, Fellous R, Falvard A, Gay P, Guicheney C, Henrard P, Jousset J, Michel B, Montret JC, Pallin D, Perret P, Pietrzyk B, Proriol J, Preulhi�re F, Stimpfl G, Fearnley T, Hansen JD, Hansen JR, Hansen PH, M�llerud R, Nilsson BS, Efthymiopoulos I, Kyriakis A, simopoulou E, Vayaki A, Zachariadou K, Badier J, Blondel A, Bonneaud G, Brient JC, Fouque G, Gamess A, Orteu S, Rosowsky A, Roug� A, Rumpf M, Tanaka R, Videau H, Candlin DJ, Parsons MI, Veitch E, Moneta L, Parrini G, Corden M, Georgiopoulos C, Ikeda M, Lannutti J, Levinthal D, Mermikides M, Sawyer L, Wasserbaech S, Antonelli A, Baldini R, Bencivenni G, Bologna G, Campana P, Capon G, Cerutti F, Chiarella V, D'Ettorre-Piazzoli B, Felici G, Laurelli G, Mannocchi G, Murtas F, Murtas GP, Passalacqua L, Pepe-Altarelli M, Picchi P, Altoon B, Boyle O, Colrain P, Have I, Lynch JG, Maitland W, Morton WT, Raine C, Scarr JM, Smith K, Thompson AS, Turnbull RM, Brandl B, Braun O, Geiges R, Geweniger C, Hanke P, Hepp V, Kluge EE, Maumary Y, Putzer A, Rensch B, Stahl A, Tittel K, Wunsch M, Belk AT, Beuselinck R, Binnie DM, Cameron W, Cattaneo M, Colling DJ, Dornan PJ, Dugeay S, Greene AM, Hassard JF, Lieske NM, Patton SJ, Payne DG, Phillips MJ, Sedgbeer JK, Tomalin IR, Wright AG, Kneringer E, Kuhn D, Rudolph G, Bowdery CK, Brodbeck TJ, Finch AJ, Foster F, Hughes G, Jackson D, Keemer NR, Nuttall M, Patel A, Sloan T, Snow SW, Whelan EP, Barczewski T, Kleinknecht K, Raab J, Renk B, Roehn S, Sander HG, Schmidt H, Steeg F, Walther SM, Wolf B, Aubert JJ, Benchouk C, Bernard V, Bonissent A, Carr J, Coyle P, Drinkard J, Etienne F, Papalexiou S, Payre P, Qian Z, Rousseau D, Schwemling P, Talby M, Adlung S, Becker H, Blum W, Brown D, Cattaneo P, Cowan G, Dehning B, Dietl H, Dydak F, Fernandez-Bosman M, Frank M, Halley AW, Hansl-Kozanecka T, Lauber J, L�tjens G, Lutz G, M�nner W, Pan Y, Richter R, Rotscheidt H, Schr�der J, Schwarz AS, Settles R, Stierlin U, Stiegler U, Denis RS, Takashima M, Thomas J, Wolf G, Bertin V, Boucrot J, Callot O, Chen X, Cordier A, Davier M, Grivaz JF, Heusse P, Janot P, Kim DW, Diberder F, Lefran�ois J, Lutz AM, Schune MH, Veillet JJ, Videau I, Zhang Z, Zomer F, Abbaneo D, Amendolia SR, Bagliesi G, Batignani G, Bosisio L, Bottigli U, Bradaschia C, Carpinelli M, Ciocci MA, Dell'Orso R, Ferrante I, Fidecaro F, Fo� L, Focardi E, Forti F, Giassi A, Giorgi MA, Ligabue F, Mannelli EB, Marrocchesi PS, Messineo A, Palla F, Rizzo G, Sanguinetti G, Steinberger J, Technini R, Tonelli G, Triggiani G, Vannini C, Venturi A, Verdini PG, Walsh J, Carter JM, Green MG, March PV, Medcalf T, Quazi IS, Strong JA, West LR, Botterill DR, Clifft RW, Edgecock TR, Edwards M, Fisher SM, Jones TJ, Norton PR, Salmon DP, Thompson JC, Bloch-Devaux B, Colas P, Kozanecki W, Lemaire MC, Locci E, Loucatos S, Monnier E, Perez P, Perrier F, Rander J, Renardy JF, Roussarie A, Schuller JP, Schwindling J, Mohand D, Vallage B, Johnson RP, Litke AM, Taylor G, Wear J, Ashman JG, Babbage W, Booth CN, Buttar C, Carney RE, Cartwright S, Combley F, Hatfield F, Reeves P, Thompson LF, Barberio E, Brandt S, Grupen C, Mirabito L, Sch�fer U, Seywerd H, Ganis G, Giannini G, Gobbo B, Ragusa F, Bellantoni L, Cinabro D, Conway JS, Cowen DF, Feng Z, Ferguson DPS, Grahl J, Harton JL, Jared RC, LeClaire BW, Lishka C, Pater JR, Saadi Y, Sharma V, Schmitt M, Shi ZH, Tang YH, Walsh AM, Weber FV, Whitney MH, Wu SL, Wu X, Zobernig G. Properties of hadronicZ decays and test of QCD generators. ACTA ACUST UNITED AC 1992. [DOI: 10.1007/bf01482583] [Citation(s) in RCA: 56] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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967
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Zhao W, Lee HC. Spontaneous breaking of topological symmetry. PHYSICAL REVIEW LETTERS 1992; 68:1451-1454. [PMID: 10045135 DOI: 10.1103/physrevlett.68.1451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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968
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Hedayat A, Zhao W. Correction: Optimal Two-Period Repeated Measurements Designs. Ann Stat 1992. [DOI: 10.1214/aos/1176348548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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969
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Decamp D, Deschizeaux B, Goy C, Lees JP, Minard MN, Alemany R, Crespo JM, Delfino M, Fernandez E, Gaitan V, Garrido L, Mir LM, Pacheco A, Catanesi MG, Creanza D, Palma M, Farilla A, Iaselli G, Maggi G, Maggi M, Natali S, Nuzzo S, Quattromini M, Ranieri A, Raso G, Romano F, Ruggieri F, Selvaggi G, Silvestris L, Tempesta P, Zito G, Gao Y, Hu H, Huang D, Huang X, Lin J, Lou J, Qiao C, Ruan T, Wang T, Xie Y, Xu D, Xu R, Zhang J, Zhao W, Atwood WB, Bauerdick LAT, Bird F, Blucher E, Bonyicini G, Bossi F, Boudreau J, Brown D, Burnett TH, Drevermann H, Forty RW, Grab C, Hagelberg R, Haywood S, Hilgart J, Jost B, Kasemann M, Knobloch J, Lacourt A, Lan�on E, Lehraus I, Lohse T, Lusiani A, Marchioro A, Martinez M, Mato P, Menary S, Minten A, Miotto A, Miquel R, Moser HG, Nash J, Palazzi P, Ranjard F, Redlinger G, Roth A, Rothberg J, Rotscheidt H, Saich M, Denis RS, Schlatter D, Takashima M, Talby M, Tejessy W, Wachsmuth H, Wasserbaech S, Wheeler S, Wiedenmann W, Witzeling W, Wotschack J, Ajaltouni Z, Bardadin-Otwinowska M, Fellous R, Falvard A, Gay P, Harvey J, Henrard P, Jousset J, Michel B, Montret JC, Pallin D, Perret P, Proriol J, Prulhi�re F, Stimpfl G, Hansen JD, Hansen JR, Hansen PH, M�llerud R, Nilsson BS, Efthymiopoulos I, Simopoulou E, Vayaki A, Badier J, Blondel A, Bonneaud G, Bourotte J, Braems F, Brient JC, Fouque G, Gamess A, Guirlet R, Orteu S, Rosowsky A, Roug� A, Rumpf M, Tanaka R, Videau H, Candlin DJ, Veitch E, Parrini G, Corden M, Georgiopoulos C, Ikeda M, Lannutti J, Levinthal D, Mermikides M, Sawyer L, Antonelli A, Baldini R, Bencivenni G, Bologna G, Campana P, Capon G, Cerutti F, Chiarella V, D'Ettorre-Piazzoli B, Felici G, Laurelli P, Mannocchi G, Murtas F, Murtas GP, Nicoletti G, Passalacqua L, Pepe-Altarelli M, Picchi P, Zografou P, Altoon B, Boyle O, Halley AW, Have I, Hearns JL, Lynch JG, Morton WT, Raine C, Scarr JM, Smith K, Thompson AS, Turnbull RM, Brandl B, Braun O, Geiges R, Geweniger C, Hanke P, Hepp V, Kluge EE, Maumary Y, Putzer A, Rensch B, Stahl A, Tittel K, Wunsch M, Belk AT, Beuselinck R, Binnie DM, Cameron W, Cattaneo M, Dornan PJ, Dugeay S, Greene AM, Hassard JF, Lieske NM, Patton SJ, Payne DG, Phillips MJ, Sedgbeer JK, Taylor G, Tomalin IR, Wright AG, Girtler P, Kuhn D, Rudolph G, Bowdery CK, Brodbeck TJ, Finch AJ, Foster F, Hughes G, Keemer NR, Nuttall M, Patel A, Rowlingson BS, Sloan T, Snow SW, Whelan EP, Barczewski T, Kleinknecht K, Raab J, Renk B, Roehn S, Sander HG, Schmelling M, Schmidt H, Steeg F, Walther SM, Wolf B, Albanese JP, Aubert JJ, Benchouk C, Bernard V, Bonissent A, Courvoisier D, Etienne F, Papalexiou S, Payre P, Pietrzyk B, Qian Z, Becker H, Blum W, Cattaneo P, Cowan G, Dehning B, Dietl H, Dydak F, Fernandez-Bosman M, Hansl-Kozanecka T, Jahn A, Kozanecki W, Lange E, Lauber J, L�tjens G, Lutz G, M�nner W, Pan Y, Richter R, Schr�der J, Schwarz AS, Settles R, Stierlin U, Thomas J, Wolf G, Bertin V, Boucrot J, Callot O, Chen X, Cordier A, Davier M, Ganis G, Grivaz JF, Heusse P, Janot P, Kim DW, Diberder F, Lefran�ois J, Lutz AM, Veillet JJ, Videau I, Zhang Z, Zomer F, Abbaneo D, Amendolia SR, Bagliesi G, Batignani G, Bosisio L, Bottigli U, Bradaschia C, Carpinelli M, Ciocci MA, Dell'Orso R, Ferrante I, Fidecaro F, Fo� L, Focardi E, Forti F, Gatto C, Giassi A, Giorgi MA, Ligabue F, Mannelli EB, Marrocchesi PS, Messineo A, Moneta L, Palla F, Sanguinetti G, Steinberger J, Tenchini R, Tonelli G, Triggiani G, Vannini C, Venturi A, Verdini PG, Walsh J, Carter JM, Green MG, March PV, Medcalf T, Quazi IS, Strong JA, Thomas RM, West LR, Wildish T, Botterill DR, Clifft RW, Edgecock TR, Edwards M, Fisher SM, Jones TJ, Norton PR, Salmon DP, Thompson JC, Bloch-Devaux B, Colas P, Klopfenstein C, Locci E, Loucatos S, Monnier E, Perez P, Perlas JA, Perrier F, Rander J, Renardy JF, Roussarie A, Schuller JP, Schwindling J, Vallage B, Ashman JG, Booth CN, Buttar C, Carney R, Cartwright S, Combley F, Dinsdale M, Dogru M, Hatfield F, Martin J, Parker D, Reeves P, Thompson LF, Barberio E, Brandt S, Burkhardt H, Grupen C, Meinhard H, Mirabito L, Sch�fer U, Seywerd H, Apollinari G, Giannini G, Gobbo B, Liello F, Ragusa F, Rolandi L, Stiegler U, Bellantoni L, Cinabro D, Conway JS, Cowen DF, Feng Z, Ferguson DPS, Gao YS, Grahl J, Harton JL, Jacobsen JE, Jared RC, Johnson RP, Claire BW, Pan YB, Pater JR, Saadi Y, Sharma V, Shi ZH, Tang YH, Walsh AM, Wear JA, Weber FV, Whitney MH, Wu SL, Zobernig G. Improved measurements of electroweak parameters fromZ decays into fermion pairs. ACTA ACUST UNITED AC 1992. [DOI: 10.1007/bf01483868] [Citation(s) in RCA: 62] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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970
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Watanabe Y, Suda M, Matsumoto Y, Takayama K, Matsumoto M, Zhao W. Preparation and evaluation of oral dosage form using acylglycerols. II. Effect of food ingestion on dissolution and absorption of aspirin from the granules prepared by acylglycerols in human subjects. Chem Pharm Bull (Tokyo) 1991; 39:2391-4. [PMID: 1804553 DOI: 10.1248/cpb.39.2391] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The dissolution behavior of the aspirin enteric granule prepared using acylglycerols, glyceryl monostearate (GMS) and glyceryl trilaurate (GTL), was investigated in vitro and in human subjects in a fasting or non-fasting state. Aspirin was slowly released from the granule in vitro at pH 1.2. No acceleration of the aspirin dissolution rate in the medium without lipase and cholic acid was observed when the pH level of the medium increased to a neutral region (pH 6.4). However, the dissolution of aspirin was significantly increased by increasing the concentrations of lipase and cholic acid in the medium. Lipase appears to play an essential role in the dissolution process of aspirin granules. In human subjects, the average levels of the cumulative amount of total salicylate excreted in a urine-time curve, and the mean residence time (MRT) obtained after oral administration of a granule in the fasting state were markedly delayed in comparison with the results observed using an aqueous solution and a crystalline form of aspirin. In comparing the fasting condition with the non-fasting condition (after food ingestion), no significant difference was recognized in the total amount of salicylate excreted in urine to an infinite time (Ae(infinity)), whether the MRT was obtained by granule, crystalline form or aqueous solution. It can be concluded that aspirin granule prepared by GMS and GTL has a property of pancreatic lipase-sensitive dissolution, and its bioavailability is unaffected by food intake.
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971
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Liu M, Yuen DA, Zhao W, Honda S. Development of Diapiric Structures in the Upper Mantle Due to Phase Transitions. Science 1991; 252:1836-9. [PMID: 17753261 DOI: 10.1126/science.252.5014.1836] [Citation(s) in RCA: 64] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
Solid-state phase transitions in time-dependent mantle convection can induce diapiric flows in the upper mantle. When a deep mantle plume rises toward phase boundaries in the upper mantle, the changes in the local thermal buoyancy, local heat capacity, and latent heat associated with the phase change at a depth of 670 kilometers tend to pinch off the plume head from the feeding stem and form a diapir. This mechanism may explain episodic hot spot volcanism. The nature of the multiple phase boundaries at the boundary between the upper and lower mantle may control the fate of deep mantle plumes, allowing hot plumes to go through and retarding the tepid ones.
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972
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Luo LG, Zhao BG, Zhao W, Zhu XZ. [A study of the regulatory role of GABA on the LHRH release in the median eminence of rats]. SHENG LI XUE BAO : [ACTA PHYSIOLOGICA SINICA] 1991; 43:205-12. [PMID: 1664972] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The present study was undertaken to observe the effect of GABA and NA on LHRH neuronal terminals in the median eminence (ME). The results showed that GABA (10(-6) mol/L) significantly increased LHRH and NA release from ME, i.e., respectively from 27.3 +/- 2.5 pg/100 microliters to 150.4 +/- 27.9 pg/100 microliters and from 50.9 +/- 4.2 pg/100 microliters to 105.5 +/- 19.1 pg/100 microliters (both P less than 0.01 vs control group). These effects of GABA could be blocked by bicuculline. When bicuculline and GABA (10(-6) mol/L) were added into the ME, the secretion of LHRH decreased to 18.2 +/- 1.9 pg/100 microliters and that of NA to 43.9 +/- 3.4 pg/100 microliters. The effect of GABA on LHRH release may be mediated by NA. When endogenous NA was depleted by reserpine, GABA increased LHRH secretion only by 26.5% instead of 451.9% as in the normal animal.
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973
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Ng KT, Gibbs ME, Crowe SF, Sedman GL, Hua F, Zhao W, O'Dowd B, Rickard N, Gibbs CL, Syková E. Molecular mechanisms of memory formation. Mol Neurobiol 1991; 5:333-50. [PMID: 1688056 DOI: 10.1007/bf02935556] [Citation(s) in RCA: 31] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Studies with neonate chicks, trained on a passive avoidance task, suggest that at least two shorter-term memory stages precede long-term, protein synthesis-dependent memory consolidation. Posttetanic neuronal hyperpolarization arising from two distinct mechanisms is postulated to underlie formation of these two early memory stages. Maintenance of the second of these stages may involve a prolonged period of hyperpolarization brought about by phosphorylation of particular proteins. A triggering mechanism for long-term consolidation is postulated to occur at a specific time during the second stage, and may involve reinforcement-contingent release of neuronal noradrenaline stimulating cAMP-dependent intracellular processes. The possibility that astroglia may have a critical role to play in these early stages of memory processing is raised.
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974
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Takeshige C, Tsuchiya M, Zhao W, Guo S. Analgesia produced by pituitary ACTH and dopaminergic transmission in the arcuate. Brain Res Bull 1991; 26:779-88. [PMID: 1657317 DOI: 10.1016/0361-9230(91)90175-j] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Analgesia (NAA) caused by nonacupuncture point (abdominal muscle) stimulation after lesioning the analgesia inhibitory system (AIS) or treating the subject with proglumide was abolished by hypophysectomy or adrenalectomy. The final sector of the NAA afferent pathway from the nonacupuncture point to the pituitary gland and the initial sector of the descending pain inhibitory system were found in the anterior and posterior arcuate nucleus (A-HARN and P-HARN), respectively. Analgesia caused by ACTH microinjected into the P-HARN disappeared after denervation of the A-HARN, but that caused by dopamine did not. Firing rates of P-HARN neurons were increased by nonacupuncture point simulation (NAPS) after lesion of the AIS or treatment with proglumide. The NAPS responsive neurons also responded to ultramicroinjected dopamine, but not to ultramicroinjected ACTH. Both NAA and NAPS responsive neuron activity that were abolished by hypophysectomy were restored by concurrent application of NAPS and intraperitoneal ACTH. Reduction of sodium ions due to adrenalectomy was found to abolish NAA. It was concluded that NAA production involves dopaminergic transmission in the HARN and ACTH acting presynaptically on this transmission.
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975
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Zhao W. [Deleterious effects of calcium on the pathogenesis of ischemic brain damage]. ZHONGHUA SHEN JING JING SHEN KE ZA ZHI = CHINESE JOURNAL OF NEUROLOGY AND PSYCHIATRY 1991; 24:27-9, 62. [PMID: 1868764] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Using atomic absorption spectroscopy, we measured the regional distribution of tissue Ca++ contents of 24 rabbit brains sampled at 2,4,24 and 48 hours after the occlusion of Middle Cerebral Artery (MCAo) with accompanying histopathological examinations with 10 controls. At 2 hours after MCAo, brain tissue Ca++ concentration increased significantly (P less than 0.005) in the ischemic territory and increased further with times, far preceding the detectable pathological findings termed necrosis, which appeared at 12 hours after MCAo. It seems most probable that the deleterious effects of calcium play an important role in the pathogenesis of ischemic brain damage.
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976
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977
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Zhao W. [Observation for 3 years on the immune effects of hepatitis B vaccine in susceptible population]. ZHONGHUA YI XUE ZA ZHI 1990; 70:615-7, 42. [PMID: 1963351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Chinese-produced HB vaccine induced high levels of antibodies against HB surface antigen in susceptible population (babies born to mothers who were negative for HBsAg and people who were negative for all the HBV markers). Eight months after the first dose, 97.73 and 93.75 percent of the neonates who received 10 micrograms (group I) and 20 micrograms (group II) vaccines and 92.45 percent of the adults who received 20 micrograms vaccine (group III) developed anti-HBs with the S/N values of 42.12, 46.53 and 36.20, and gave effective protection rates (S/N greater than or equal to 10) of 86.36%, 89.58% and 79.25%, respectively. No significant difference was noted between these groups. After three years, the positive rates and the S/N values of anti-HBs were 17.1% and 3.70 in group I, 15.6% and 4.23 in group II, 20.4% and 4.04 in group III respectively. One month after booster injection in anti-HBs, the S/N values of anti-HBs were 85.12 in group I with 10 micrograms vaccine, 89.23 in group II with 30 micrograms vaccine and 90.82 in those aged 4-10 years with 10 micrograms vaccine. The infection rate in the neonates who were not vaccinated with HB vaccines (11.11%) was higher than those who were vaccinated (0%). So it is clear that Chinese-produced HB vaccines are safe and effective.
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978
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Xiao J, Cui F, Ning T, Zhao W. [Effects of alcohol extract from Polygonatum odoratum (Mill.) Druce and Cuscuta australis R. Br. on immunological function of mice injured by burns]. ZHONGGUO ZHONG YAO ZA ZHI = ZHONGGUO ZHONGYAO ZAZHI = CHINA JOURNAL OF CHINESE MATERIA MEDICA 1990; 15:557-9, 578. [PMID: 2092718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
This paper shows that the alcoholic extract from Polygonatum odoratum and Cuscuta australis increases the percentage of phagocytosis and the index of phagocytosis of macrophages as well as hemolysin and proliferation of lymphocytes up to normal level in mice with II+ burn injury covering 5% body surface. It follows that both Polygonatum odoratum and Cuscuta australis may serve as a kind of immunopotentiator for mammals.
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979
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Zhao W, Bourkoff E. Generation of dark solitons under a cw background using waveguide electro-optic modulators. OPTICS LETTERS 1990; 15:405-407. [PMID: 19767957 DOI: 10.1364/ol.15.000405] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
We propose a novel method for generating dark solitons with a cw background by using broadband guided-wave electro-optic modulators. The generated pulse can be amplified by stimulated Raman scattering to permit the observation of soliton effects in the fiber.
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980
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Zhao W, Wilson JB, Huisman TH, Sciarratta GV, Ivaldi G, Petrini C, Ripamonti M. Hb Camperdown or alpha 2 beta 2(104)(G6)Arg----Ser in two Italian males. Hemoglobin 1990; 14:459-61. [PMID: 2283301 DOI: 10.3109/03630269009032008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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981
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Zhao W, Wilson JB, Webber BB, Kutlar A, Tamagnini GP, Kuam B, Huisman TH. Hb Hekinan observed in three Chinese from Macau; identification of the GAG----GAT mutation in the alpha 1-globin gene. Hemoglobin 1990; 14:627-35. [PMID: 1983218 DOI: 10.3109/03630269009046971] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Hb Hekinan, an alpha chain variant that is characterized by a Glu----Asp mutation at position alpha 27, was observed in three Chinese females attending a prenatal clinic in Macau. The relative quantities of the stable hemoglobin were 13-14% (average 13.3%); its identification was greatly aided by the separation and purification of the peptides by reversed phase high performance liquid chromatography. Dot-blot analysis of amplified DNA with 32P-labeled probes located the mutation in codon 27 of the minor alpha 1-globin gene; the change involved a GAG (coding for glutamic acid) to GAT (coding for aspartic acid) mutation.
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982
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Zhao W, Wilson JB, Webber BB, Huisman TH, Sciarratta GV, Ivaldi G, Ripamonti M. A second observation of Hb Abruzzo [alpha 2 beta 2(143)(H21)His----Arg] in an Italian family. Hemoglobin 1990; 14:463-6. [PMID: 2283302 DOI: 10.3109/03630269009032009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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983
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Abstract
The interaction forces between two dark solitons are numerically investigated. It is found that dark solitons are less affected than bright solitons by their respective interaction forces. An empirical expression for the separation of two solitons as a function of initial separation and traveling distance is deduced, which agrees well with numerical results.
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984
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Zhao W, Bourkoff E. Periodic amplification of dark solitons using stimulated Raman scattering. OPTICS LETTERS 1989; 14:808-810. [PMID: 19752975 DOI: 10.1364/ol.14.000808] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
The possibility of periodically amplifying dark solitons in a normally dispersive optical fiber is studied. It is found that, as with bright solitons, an all-optical, repeaterless, and stable system for dark-soliton transmission at a rate of 20 GHz over thousands of kilometers in a lossy fiber is achievable, if periodic amplification using stimulated Raman scattering is incorporated.
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985
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Abstract
We numerically study the initial-value problem of the nonlinear Schrödinger equation in the normal-dispersion regime of an optical fiber. A nonchirped hyperbolic tangent input pulse having arbitrary amplitude is found to evolve into a primary dark soliton having a constant amplitude and speed. The effect of the input amplitude is to alter the pulse width of the primary dark soliton. In addition, a set of secondary dark solitons of smaller amplitude moving away from the primary pulse is also generated. It is also shown that nonlinear dark pulses in optical fibers are more stable than bright pulses with respect to loss and noise.
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986
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Zhao W, Zhang J, Wang NS, Deng P. The relationship between Hb Bart's levels in cord blood and the deletions of alpha-globin genes. Hemoglobin 1988; 12:519-27. [PMID: 3209394 DOI: 10.3109/03630268808991640] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
A relationship between Hb Bart's levels in cord blood and the number of alpha-globin genes has been established by screening cord blood samples from 1,075 newborn babies. Diagnosis was made by gene mapping of DNA samples with restriction endonuclease digestion. The presence of Hb Bart's was determined with a discontinuous microelectrophoresis on cellulose acetate at pH 8.34. The establishment of this relationship allows an early diagnosis of alpha-thalassemia by this simple microelectrophoretic procedure.
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987
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Bourkoff E, Zhao W, Joseph RI, Christodoulides DN. Evolution of femtosecond pulses in single-mode fibers having higher-order nonlinearity and dispersion. OPTICS LETTERS 1987; 12:272-274. [PMID: 19738862 DOI: 10.1364/ol.12.000272] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Using computer simulations, we examine the effects of higher-order dispersive and nonlinear propagation processes on the spectral and time development of ultrashort, high-intensity pulses propagating in single-mode optical fibers having normal dispersion. Our results indicate that both the cubic-dispersion term and the shock term of the nonlinear Schrödinger equation contribute to asymmetry in the pulse power spectrum and cause highly nonlinear chirp.
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988
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Lycett GW, Delauney AJ, Zhao W, Gatehouse JA, Croy RR, Boulter D. Two cDNA clones coding for the legumin protein of Pisum sativum L. contain sequence repeats. PLANT MOLECULAR BIOLOGY 1984; 3:91-96. [PMID: 24310304 DOI: 10.1007/bf00040033] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/1983] [Revised: 01/02/1984] [Accepted: 01/06/1984] [Indexed: 06/02/2023]
Abstract
The sequence of two cDNA clones coding for the whole of the β-subunit and most of the α-subunit of legumin are presented together with a considerable amount of protein sequence data to confirm the predicted amino acid sequence. A unique feature shown by these cDNAs is the presence of three 56 base pair tandem repeats in the region encoding the C terminal of the α polypeptide. The tandem repeats are also exhibited in the predicted polypeptide sequence as three 18 amino acid repeats which contain extremely high proportions of polar, mainly acidic, residues. The new sequences are compared to the previously published sequence of some shorter legumin cDNAs (Nature 295: 76-79). In the region where the sequences overlap, the previous cDNAs differ from the new ones by only a few base substitutions but most of the repeated region is not present though the sequences on either side are. The possibility that the absence of the repeats may reflect the difference between two types of legumin gene, rather than an artefact of the cloning of the cDNAs, is discussed.
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989
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Li GG, Wang YL, Xu ZP, Zhang PL, Zhao W. [Studies on the chemical constituents of Isodon amethystoides (Benth) C Y Wu et Hsuan]. YAO XUE XUE BAO = ACTA PHARMACEUTICA SINICA 1981; 16:667-71. [PMID: 7331815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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990
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Jin XY, Zhang XL, Zhang WH, Wang XL, Sun XL, Zhao W, Luo SY. Pathogenesis of trachoma. Chin Med J (Engl) 1980; 93:827-34. [PMID: 6257453] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
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