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Wada H, Terasako K, Kamiya Y, Sato M, Kimura SI, Okuda S, Kako S, Yamazaki R, Oshima K, Nishida J, Moriguchi M, Terai C, Kanda Y. Immune recovery after autologous PBSC transplantation without in vitro graft manipulation for refractory systemic lupus erythematosus. Bone Marrow Transplant 2011; 46:1450-4. [PMID: 21243022 DOI: 10.1038/bmt.2010.332] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Autologous hematopoietic SCT (ASCT) has been investigated as salvage therapy for refractory systemic lupus erythematosus (SLE). Although immune recovery after ASCT with in vitro purging of lymphocytes has been extensively studied, little information is available about immune recovery after ASCT without in vitro purging. Therefore, we analyzed the immune recovery of a patient who successfully underwent ASCT without in vitro purging for refractory SLE. In addition to the numbers of PBL subsets, T-cell receptor rearrangement excision circles (TRECs) and the T-cell receptor repertoire diversity of both CD4+ and CD8+ T cells were sequentially analyzed. All SLE-related symptoms disappeared within 3 months after ASCT and the serum anti-dsDNA Ab became undetectable. The number of CD4+CD45RO+ memory T cells remained lower than that in healthy adult controls, but the number of CD4+CD45RA+ naïve T cells showed a rapid increase after ASCT. TRECs of both CD4+ and CD8+ T cells were strongly suppressed before ASCT, but consistently increased after ASCT. The T-cell receptor repertoire of CD8+ T cells was skewed before ASCT, but the diversity recovered after ASCT. ASCT with the reinfusion of a large number of autologous T cells did not impair the recovery of naive T cells or resetting of the immune system.
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Goto H, Okuda S, Mizukami A, Mori H, Sasaki N, Kurihara D, Higashiyama T. Chemical visualization of an attractant peptide, LURE. PLANT & CELL PHYSIOLOGY 2011; 52:49-58. [PMID: 21149297 PMCID: PMC3023853 DOI: 10.1093/pcp/pcq191] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
The pollen tube attractant peptide LUREs of Torenia fournieri are diffusible peptides that attract pollen tubes in vitro. Here, we report a method enabling the direct visualization of a LURE peptide without inhibiting its attraction activity by conjugating it with the Alexa Fluor 488 fluorescent dye. After purifying and refolding the recombinant LURE2 with a polyhistidine tag, its amino groups were targeted for conjugation with the Alexa Fluor dye. Labeling of LURE2 was confirmed by its fluorescence and mass spectrometry. In our in vitro assay using gelatin beads, Alexa Fluor 488-labeled LURE2 appeared to have the same activity as unlabeled LURE2. Using the labeled LURE2, the relationship between the spatiotemporal change of distribution and activity of LURE2 was examined. LURE2 attracted pollen tubes when embedded in gelatin beads, but hardly at all when in agarose beads. Direct visualization suggested that the significant difference between these conditions was the retention of LURE2 in the gelatin bead, which might delay diffusion of LURE2 from the bead. Direct visualization of LURE peptide may open the way to studying the spatiotemporal dynamics of LURE in pollen tube attraction.
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Pham QH, Von Lueder TG, Namtvedt SK, Rosjo H, Omland T, Steine K, Timoteo AT, Mota Carmo M, Simoes M, Branco LM, Ferreira RC, Kato R, Ito J, Tahara T, Yokoyama Y, Ashikaga T, Satoh Y, Na JO, Hong HE, Kim MN, Shin SY, Choi CU, Kim EJ, Rha SW, Park CG, Seo HS, Oh DJ, Ticulescu R, Brigido S, Vriz O, Sparacino L, Popescu BA, Ginghina C, Carerj S, Nicolosi GL, Antonini-Canterin F, Onaindia Gandarias JJ, Romero A, Laraudogoitia E, Velasco S, Quintana O, Cacicedo A, Rodriguez I, Alarcon JA, Gonzalez J, Lekuona I, Onaindia Gandarias JJ, Laraudogoitia E, Romero A, Velasco S, Cacicedo A, Quintana O, Subinas A, Gonzalez J, Alarcon JA, Lekuona I, Abdula G, Lund LH, Winter R, Brodin L, Sahlen A, Masaki M, Cha YM, Yuasa T, Dong K, Dong YX, Mankad SV, Oh JK, Vallet F, Lequeux B, Diakov C, Sosner P, Christiaens L, Coisne D, Kihara C, Murata K, Wada Y, Uchida K, Ueyama T, Okuda S, Susa T, Matsuzaki M, Cho EJ, Choi KY, Kwon BJ, Kim DB, Jang SW, Cho JS, Jung HO, Jeon HK, Youn HJ, Kim JH, Cikes M, Bijnens B, Velagic V, Kopjar T, Milicic D, Biocina B, Gasparovic H, Almuntaser I, Brown A, Foley B, Mulvihill N, Crean P, King G, Murphy R, Takata Y, Taniguchi M, Nobusada S, Sugawara M, Toh N, Kusano K, Itoh H, Wellnhofer E, Kriatselis C, Nedios S, Gerds-Li JH, Fleck E, Poulsen MK, Henriksen JE, Dahl J, Johansen A, Haghfelt T, Hoilund-Carlsen PF, Beck-Nielsen H, Moller JE, Dankowski R, Wierzchowiecki M, Michalski M, Nowicka A, Szymanowska K, Pajak A, Poprawski K, Szyszka A, Kasner M, Westermann D, Schultheiss HP, Tschoepe C, Watanabe T, Iwai-Takano M, Kobayashi A, Machii H, Takeishi Y, Paelinck BP, Van Herck PL, Bosmans JM, Vrints CJ, Lamb HJ, Doltra A, Vidal B, Silva E, Poyatos S, Mont L, Berruezo A, Castel A, Tolosana JM, Brugada J, Sitges M, Dencker M, Bjorgell O, Hlebowicz J, Szelenyi ZS, Szenasi G, Kiss M, Prohaszka Z, Patocs A, Karadi I, Vereckei A, Saha SK, Anderson PL, Govind S, Govindan M, Moggridge JC, Kiotsekoglou A, Gopal AS, Loegstrup BB, Christophersen TB, Hoefsten DE, Moeller JE, Boetker HE, Egstrup K, Wellnhofer E, Kriatselis C, Nedios S, Gerds-Li JH, Fleck E, Graefe M, Huang FQ, Zhang RS, Le TT, Tan RS, Sattarzadeh Badkoubeh R, Tavoosi A, Elahian AR, Drapkina O, Ivashkin VI, Vereckei A, Szelenyi ZS, Fazakas A, Pepo L, Janosi O, Karadi I, Kopitovic I, Goncalves A, Marcos-Alberca P, Almeria C, Feltes G, Rodriguez E, Garcia E, Hernandez-Antolin R, Macaya C, Silva Cardoso J, Zamorano JL, Navarro MS, Valentin M, Banes CM, Rigo F, Grolla E, Tona F, Cuaia V, Moreo A, Badano L, Raviele A, Iliceto S, Tarzia P, Sestito A, Nerla R, Di Monaco A, Infusino F, Matera D, Greco F, Tacchino RM, Lanza GA, Crea F, Nemes A, Balazs E, Pinter KS, Egyed A, Csanady M, Forster T, Loegstrup BB, Christophersen TB, Hoefsten DE, Moeller JE, Boetker HE, Egstrup K, Holte E, Vegsundvag J, Hole T, Hegbom K, Wiseth R, Nemes A, Balazs E, Pinter KS, Egyed A, Csanady M, Forster T, Sharif D, Sharif-Rasslan A, Shahla C, Khalil A, Rosenschein U, Zagatina A, Zhuravskaya N, Tyurina TV, Tagliamonte E, Cirillo T, Coppola A, Marinelli U, Romano C, Riccio G, Citro R, Astarita C, Capuano N, Tagliamonte E, Cirillo T, Marinelli U, Quaranta G, Desiderio A, Riccio G, Romano C, Capuano N, Frattini S, Faggiano P, Zilioli V, Locantore E, Longhi S, Bellandi F, Faden G, Triggiani M, Dei Cas L, Dalsgaard M, Kjaergaard J, Iversen K, Hassager C, Dinh W, Nickl WN, Smettan JS, Koehler TK, Scheffold TD, Coll Barroso MCB, Guelker JG, Fueth RF, Kamperidis V, Hadjimiltiades S, Sianos G, Efthimiadis G, Karvounis H, Parcharidis G, Styliadis IH, Velasco Del Castillo MS, Cacicedo A, Onaindia JJ, Quintana O, Alarcon JA, Rodriguez I, Telleria M, Subinas A, Lekuona I, Laraudogoitia E, Carstensen HG, Nordenberg C, Sogaard P, Fritz-Hansen T, Bech J, Galatius S, Jensen JS, Mogelvang R, Bartko PE, Graf S, Rosenhek R, Burwash IG, Bergler-Klein J, Clavel MA, Baumgartner H, Pibarot P, Mundigler G, Kirilmaz B, Eser I, Tuzun N, Komur B, Dogan H, Taskiran Comez A, Ercan E, Cusma-Piccione M, Zito C, Oreto G, Piluso S, Tripepi S, Oreto L, Longordo C, Ciraci L, Di Bella G, Carerj S, Piatkowski R, Kochanowski J, Scislo P, Grabowski M, Marchel M, Roik M, Kosior D, Opolski G, Sknouril L, Dorda M, Holek B, Gajdusek L, Chovancik J, Branny M, Fiala M, Szymanski P, Lipczynska M, Klisiewicz A, Hoffman P, Jander N, Minners J, Martin G, Zeh W, Allgeier M, Gohlke-Baewolf C, Gohlke H, Nistri S, Porciani MC, Attanasio M, Abbate R, Gensini GF, Pepe G, Duncan RF, Piantadosi C, Nelson AJ, Wittert G, Dundon B, Worthley MI, Worthley SG, Jung P, Berlinger K, Rieber J, Sohn HZ, Schneider P, Leibig M, Koenig A, Klauss V, Tomkiewicz-Pajak L, Kolcz J, Olszowska M, Pieculewicz M, Podolec P, Pieculewicz M, Przewlocki T, Tomkiewicz-Pajak L, Suchon E, Sobien B, Podolec P, Pieculewicz M, Przewlocki T, Wilkolek P, Tomkiewicz-Pajak L, Ziembicka A, Podolec P, Pieculewicz M, Przewlocki T, Tomkiewicz-Pajak L, Hlawaty M, Wilkolek P, Sobien B, Suchon E, Podolec P, Van De Bruaene A, Hermans H, Buys R, Vanhees L, Delcroix M, Voigt JU, Budts W, De Cillis E, Acquaviva T, Basile D, Bortone AS, Kalimanovska-Ostric D, Nastasovic T, Vujisic-Tesic B, Jovanovic I, Milakovic B, Dostanic M, Stosic M, Frogoudaki A, Andreou K, Parisis J, Triantafyllidi E, Gaitani S, Paraskevaidis J, Anastasiou-Nana M, Pieculewicz M, Przewlocki T, Tomkiewicz-Pajak L, Sobien B, Hlawaty M, Podolec P, De Pasquale G, Kuehn A, Petzuch K, Mueller J, Meierhofer C, Fratz S, Hager A, Hess J, Vogt M, Attenhofer Jost CH, Dearani JA, Scott CG, Burkhart HM, Connolly HM, Vitarelli A, Battaglia D, Caranci F, Padella V, Continanza G, Dettori O, Capotosto L, Vitarelli M, De Cicco V, Cortez Morichetti M, Mohanan Nair KK, Sasidaharan B, Thajudeen A, Tharakan JM, Mertens L, Ahmad N, Kantor PK, Grosse-Wortmann L, Friedberg MK, Bernard YF, Morel MA, Descotes-Genon V, Jehl J, Meneveau N, Schiele F, Kaldararova M, Simkova I, Tittel P, Masura J, Trojnarska O, Szczepaniak L, Mizia -Stec K, Cieplucha A, Bartczak A, Grajek S, Tykarski A, Gasior Z, Attenhofer Jost CH, Babovicvuksanovic D, Scott CG, Bonnichsen CR, Burkhart HM, Connolly HM, Morgan GJ, Slorach C, Hui W, Sarkola T, Lee KJ, Chaturvedi R, Benson L, Mertens L, Bradley T, Iancu ME, Ghiorghiu I, Serban M, Craciunescu I, Hodo A, Popescu BA, Ginghina C, Morgan J, Morgan GJ, Slorach C, Hui W, Roche L, Lee K, Chaturvedi R, Benson L, Bradley T, Mertens L, Morgan J, Morgan GJ, Slorach C, Hui W, Sarkola T, Lee K, Chaturvedi R, Benson L, Bradley T, Mertens L, Milanesi O, Favero V, Padalino M, Biffanti R, Cerutti A, Maschietto N, Reffo E, Vida V, Stellin G, Irtyuga O, Gamazin D, Voronkina I, Tsoyi N, Gudkova E, Moiseeva O, Aggeli C, Kazazaki C, Felekos I, Lagoudakou S, Roussakis G, Skoumas J, Pitsavos C, Stefanadis C, Cueff C, Keenan N, Steg PG, Cimadevilla C, Ducrocq G, Vahanian A, Messika-Zeitoun D, Petrella L, Mazzola AM, Villani CV, Giancola RG, Ciocca MC, Di Eusanio DEM, Nolan S, Ionescu A, Skaug TR, Amundsen BH, Hergum T, Torp H, Haugen BO, Lopez Aguilera J, Mesa Rubio D, Ruiz Ortiz M, Delgado Ortega M, Villanueva Fernandez E, Cejudo Diaz Del Campo L, Toledano Delgado F, Leon Del Pino M, Romo Pena E, Suarez De Lezo Cruz-Conde J, De Marco E, Colucci A, Comerci G, Gabrielli FA, Natali R, Garramone B, Savino M, Lotrionte M, Sonaglioni A, Loperfido F, Zdravkovic M, Perunicic J, Krotin M, Ristic M, Vukomanovic V, Zaja M, Radovanovic S, Saric J, Zdravkovic D, Cotrim C, Almeida AR, Miranda R, Almeida AG, Picano E, Carrageta M, D'andrea A, Cocchia R, Riegler L, Golia E, Scarafile R, Citro R, Caso P, Russo MG, Bossone E, Calabro' R, Noman H, Adel A, Elfaramawy AMR, Abdelraouf M, Elnaggar WAEL, Baligh E, Sargento L, Silva D, Goncalves S, Ribeiro S, Vinhas Sousa G, Almeida A, Lopes M, Rodriguez-Manero M, Aguado Gil L, Azcarate P, Lloret Luna P, Macias Gallego A, Castano SARA, Garcia M, Pujol Salvador C, Barba J, Redondo P, Tomasoni L, Sitia S, Atzeni F, Gianturco L, Ricci C, Sarzi-Puttini P, Turiel M, Sitia S, Tomasoni L, Atzeni F, De Gennaro Colonna V, Sarzi-Puttini P, Turiel M, Uejima T, Jaroch J, Antonini-Canterin F, Polombo C, Carerj S, Hughes A, Vinereanu D, Evanvelista A, Leftheriotis G, Fraser AG, Lewczuk A, Sobkowicz B, Tomaszuk-Kazberuk A, Sawicki R, Hirnle T, Michalski BW, Filipiak D, Kasprzak JD, Lipiec P, Dalen H, Haugen BO, Mjolstad OC, Klykken BE, Graven T, Martensson M, Olsson M, Brodin LA, Antonini-Canterin F, Ticulescu R, Vriz O, Enache R, Leiballi E, Popescu BA, Ginghina C, Nicolosi GL, Penhall A, Perry R, Altman M, Sinhal A, Bennetts J, Chew DP, Joseph MX, Larsen LH, Kjaergaard J, Kristensen T, Kober LV, Kofoed KF, Hassager C, Moscoso Costa F, Ribeiras R, Brito J, Boshoff S, Neves J, Teles R, Canada M, Andrade MJ, Gouveia R, Silva A, Miskovic A, Poerner TP, Stiller CS, Goebel BG, Moritz AM, Stefani L, Galanti GG, Moraldo M, Bergamini C, Pabari PA, Dhutia NM, Malaweera ASN, Willson K, Davies J, Hughes AD, Xu XY, Francis DP, Jasaityte R, Amundsen B, Barbosa D, Loeckx D, Kiss G, Orderud F, Robesyn V, Claus P, Torp H, D'hooge J, Kihara C, Murata K, Wada Y, Uchida K, Nao T, Okuda S, Susa T, Miura T, Matsuzaki M, Shams K, Samir S, Samir R, El-Sayed M, Anwar AM, Nosir Y, Galal A, Chamsi-Pasha H, Ciobanu A, Dulgheru R, Bennett S, Vinereanu D, De Luca A, Toncelli L, Cappelli F, Stefani L, Cappelli B, Vono MCR, Galanti G, Zorman Y, Yilmazer MS, Akyildiz M, Gurol T, Aydin A, Dagdeviren B, Kalangos A. Poster session V * Saturday 11 December 2010, 08:30-12:30. EUROPEAN JOURNAL OF ECHOCARDIOGRAPHY 2010. [DOI: 10.1093/ejechocard/jeq148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Mora B, Base E, Schmid W, Andreas M, Weber U, Junreitmaier M, Foerster F, Hiesmayr M, Tschernich HD, Guldbrand D, Goetzsche O, Eika B, Fumagalli S, Francini S, Gabbai D, Pedri S, Casalone Rinaldi M, Makhanian Y, Sollami R, Tarantini F, Marchionni N, Azcarate PM, Castano S, Rodriguez-Manero M, Arraiza M, Levy B, Barba J, Rabago G, Bastarrika G, Rus H, Radoi M, Ciurea C, Boda D, Erdei T, Denes M, Mihalcz A, Kardos A, Foldesi CS, Temesvari A, Lengyel M, Cameli M, Lisi M, Righini F, Ballo P, Henein M, Mondillo S, Nistri S, Galderisi M, Ballo PC, Pagliani L, Olivotto I, Santoro A, Papesso B, Innelli P, Cecchi F, Mondillo S, Hristova K, Katova TZ, Kostova V, Simova Y, Nesheva N, Ivanovic B, Tadic MT, Simic DS, Rao CM, Aguglia D, Casciola G, Imbesi C, Marvelli A, Sgro M, Benedetto D, Tripepi G, Zoccali C, Benedetto FA, Mantziari L, Kamperidis V, Damvopoulou E, Ventoulis I, Giannakoulas G, Paraskevaidis S, Vassilikos V, Karvounis H, Styliadis IH, Sonder TK, Loegstrup BB, Lambrechtsen J, Van Bortel LM, Segers P, Egstrup K, Tho A, Moceri P, Bertora D, Gibelin P, Cho EJ, Choi KY, Kim BJ, Kim DB, Jang SW, Park CS, Jung HO, Jeon HK, Youn HJ, Kim JH, Donal E, Coquerel N, Bodi S, Thebault C, Kervio G, Carre F, Daly MJ, Fairley SL, Doherty R, Ashfield K, Kirkpatrick R, Smith B, Buchanan J, Hill L, Dixon LJ, Rosca M, O' Connor K, Magne J, Romano G, Calin A, Popescu BA, Beladan CC, Pierard L, Ginghina C, Lancellotti P, Bochenek T, Wita K, Tabor Z, Grabka M, Elzbieciak M, Trusz-Gluza M, Moreau O, Thebault C, Kervio G, Leclercq C, Donal E, Sahlen A, Shahgaldi K, Aminoff A, Aagaard P, Manouras A, Winter R, Ehrenborg E, Braunschweig F, Bedetti G, Gargani L, Pizzi C, Sicari R, Picano E, Ballo P, Nistri S, Innelli P, Galderisi M, Mondillo S, Zhang J, Zhang HB, Duan YY, Chen LL, Li J, Liu LW, Zhu T, Li HL, Su HL, Zhou XD, Ruiz Ortiz M, Mesa Rubio D, Delgado Ortega M, Romo Penas E, Toledano Degado F, Leon Del Pino C, Lopez Aguilera J, Villanueva Fernandez E, Cejudo Diaz Del Campo L, Suarez De Lezo J, Abergel E, Simon M, Dehant P, Bogino E, Jimenez M, Verdier JC, Chauvel C, Albertsen AE, Nielsen JC, Mortensen PT, Egeblad H, Nasr GM, Tawfik S, Omar A, Olofsson M, Boman K, Sonder TK, Loegstrup BB, Lambrechtsen J, Segers P, Van Bortel LM, Egstrup K, Rezzoug N, Vaes B, Degryse J, Vanoverschelde JL, Pasquet AA, Poggio D, Bonadies M, Pacher V, Mazzetti S, Grillo M, D'elia E, Khouri T, Specchia G, Mornos C, Rusinaru D, Cozma D, Ionac A, Petrescu L, Rotzak R, Rosenman Y, Patterson RD, Ratnatheepan S, Bogle RG, Goebel B, Gjesdal O, Kottke D, Otto S, Jung C, Edvardsen T, Figulla HR, Poerner TC, Otsuka T, Suzuki M, Yoshikawa H, Hashimoto G, Itou N, Ono T, Yamamoto M, Osaki T, Tsuchida T, Sugi K, Wolber T, Haegeli L, Huerlimann D, Brunckhorst C, Duru F, Wu ZM, Shu XH, Dong LL, Fan B, Ge JB, Greutmann M, Tobler D, Biaggi P, Mah M, Crean A, Oechslin EN, Silversides CK, Ivanovic B, Tadic MT, Simic DS, Giusca S, Jurcut R, Ghiorghiu I, Coman IM, Popescu BA, Amzulescu M, Ionescu R, Delcroix M, Voigt JU, Ginghina C, Piatkowski R, Kochanowski J, Scislo P, Grabowski M, Marchel M, Roik M, Kosior D, Opolski G, Maceira Gonzalez AM, Cosin-Sales J, Dalli E, Igual B, Monmeneu JV, Lopez-Lereu P, Estornell J, Ruvira J, Sotillo J, Stevanovic A, Toncev A, Dimkovic S, Dekleva M, Paunovic N, Toncev D, Sekularac N, Yildirimturk O, Helvacioglu FF, Tayyareci Y, Yurdakul S, Demiroglu ICC, Aytekin S, Pinedo Gago M, Amat Santos I, Revilla Orodea A, Lopez Diaz J, Arnold R, De La Fuente Galan L, Recio Platero A, Gomez Salvador I, Puerto Sanz A, San Roman Calvar JA, Yotti R, Bermejo J, Mombiela T, Benito Y, Sanchez PL, Solis J, Prieto R, Fernandez-Aviles F, Zilberszac R, Gabriel H, Graf S, Mundigler G, Maurer G, Rosenhek R, Zito C, Salvia J, Longordo C, Donato D, Alati E, Miceli M, Pardeo A, Arcidiaco S, Oreto G, Carerj S, Kamperidis V, Hadjimiltiades S, Sianos G, Anastasiadis K, Grosomanidis V, Efthimiadis G, Karvounis H, Parcharidis G, Styliadis IH, Yousry M, Rickenlund A, Petrini J, Gustafsson T, Liska J, Hamsten A, Eriksson P, Franco-Cereceda A, Eriksson MJ, Caidahl K, Mizia-Stec K, Pysz P, Jasinski M, Drzewiecka-Gerber A, Krejca M, Bochenek A, Wos S, Gasior Z, Trusz-Gluza M, Tendera M, Yildirimturk O, Helvacioglu FF, Tayyareci Y, Yurdakul S, Demiroglu ICC, Aytekin S, Niki K, Sugawara M, Takamisawa I, Watanabe H, Sumiyoshi T, Hosoda S, Ida T, Takanashi S, Olsen NT, Sogaard P, Jons C, Mogelvang R, Larsson HBW, Goetze JP, Nielsen OW, Fritz-Hansen T, Sayar N, Orhan AL, Erer HB, Eren M, Atmaca H, Yilmaz HY, Cakmak N, Altay S, Terzi S, Yesilcimen K, Garcia Orta R, Moreno E, Lopez M, Uribe I, Vidal M, Ruiz-Lopez MF, Gonzalez-Molina M, Oyonarte JM, Lopez S, Azpitarte J, Szymanski C, Levine RA, Zheng H, Handschumacher MD, Tawakol A, Hung J, Le Ven F, Etienne Y, Jobic Y, Frachon I, Castellant P, Fatemi M, Blanc JJ, Rusinaru D, Tribouilloy C, Grigioni F, Avierinos JF, Barbieri A, Buiciuc O, Enriquez-Sarano M, Said K, Farag AK, El-Ramly M, Rizk H, Iorio A, Pinamonti B, Bobbo M, Merlo M, Massa L, Faganello G, Di Lenarda A, Sinagra G, Margato R, Ribeiro H, Ferreira C, Matias A, Fontes P, Moreira JI, Milan A, Puglisi E, Magnino C, Fabbri A, Leone D, Vairo A, Crudo V, Iannaccone A, Milazzo V, Veglio F, Maroz-Vadalazhskaya N, Ostrovskiy I, Zito C, Imbalzano E, Saitta A, Oreto G, Cusma-Piccione M, Di Bella G, Nava R, Ferro M, Falanga G, Carerj S, Frigy A, Buzogany J, Szabados CS, Dan L, Carasca E, Ikonomidis I, Lekakis J, Tzortzis S, Kremastinos DT, Papadopoulos C, Paraskevaidis I, Triantafyllidi H, Trivilou P, Venetsanou K, Anastasiou-Nana M, Wierzbowska-Drabik K, Kurpesa M, Trzos E, Rechcinski T, Mozdzan M, Kasprzak JD, Kosmala W, Kotwica T, Przewlocka-Kosmala M, Mysiak A, Skultetyova D, Filipova S, Chnupa P, Mantziari L, Pechlivanidis G, Giannakoulas G, Dimitroula H, Karvounis H, Styliadis IH, Milan A, Puglisi E, Magnino C, Fabbri A, Leone D, Vairo A, Iannaccone A, Crudo V, Milazzo V, Veglio F, Tsai WC, Liu YW, Lin CC, Huang YY, Tsai LM, Park SM, Kim YH, Shin SM, Shim WJ, Gonzalez Mansilla A, Torres Macho J, Sanchez Sanchez V, Diez P, Delgado J, Borruel S, Saenz De La Calzada C, Pyxaras S, Valentincic M, Barbati G, Lo Giudice F, Perkan A, Magnani S, Merlo M, Pinamonti B, Sinagra G, Palecek T, Ambroz D, Jansa P, Lindner J, Vitovec M, Polacek P, Jiratova K, Linhart A, Baskurt M, Dogan GM, Abaci O, Kaya A, Kucukoglu S, Duszanska A, Kukulski T, Skoczylas I, Majsnerowska A, Nowowiejska-Wiewiora A, Streb W, Szulik M, Polonski L, Kalarus Z, Yerly PO, Prella M, Joly A, Nicod L, Aubert JD, Aebischer N, Dores H, Leal S, Rosario I, Correia MJ, Monge J, Grilo AM, Arroja I, Fonseca C, Aleixo A, Silva A, Perez-David E, Sanchez-Alegre M, Yotti R, Gomez Anta I, De La Torre J, Alarcon J, Garcia Robles JA, Lafuente J, Bermejo J, Fernandez-Aviles F, Garcia Alonso CJ, Vallejo Camazon N, Gonzalez Guardia A, Nunez R, Bosch Carabante C, Mateu L, Gual Capllonch F, Ferrer Sistach E, Lopez Ayerbe J, Bayes Genis A, Tomaszewski A, Kutarski A, Tomaszewski M, Bramos D, Kalantaridou A, Takos D, Skaltsiotis E, Trika C, Tsirikos N, Pamboukas C, Kottis G, Toumanidis S, Aggeli C, Felekos I, Roussakis G, Kazazaki C, Lampropoulos K, Lagoudakou S, Stergiou C, Pitsavos C, Stefanadis C, Kihara C, Murata K, Wada Y, Tanaka T, Uchida K, Okuda S, Susa T, Matsuzaki M, Shahgaldi K, Manouras A, Abrahamsson A, Gudmundsson P, Brodin L, Winter R, Knebel F, Schattke S, Sanad W, Schimke I, Schroeckh S, Brechtel L, Lock J, Makauskiene R, Baumann G, Borges AC, Moelmen-Hansen HE, Wisloff U, Aamot IL, Stoylen A, Ingul CB, Estensen ME, Beitnes JO, Grindheim G, Henriksen T, Aaberge L, Smiseth OA, Gullestad L, Aakhus S, Gargani L, Agoston G, Moggi Pignone A, Capati E, Badano L, Moreo A, Bombardieri S, Varga A, Sicari R, Picano E, Carrideo M, Faricelli S, Corazzini A, Ippedico R, Ruggieri B, Di Blasio A, D'angelo E, Di Baldassarre A, Ripari P, Gallina S, Kentrschynskyj A, Rickenlund A, Caidahl K, Hylander B, Jacobson S, Pagels A, Eriksson MJ, Dumitrescu SI, Tintoiu I, Greere V, Cristian G, Chiriac L, Pinte F, Droc I, Neagoe G, Stanciu S, Voicu VA, Kuch-Wocial A, Pruszczyk P, Szmigielski CA, Szulc M, Styczynski G, Sinski M, Kaczynska A, Ryabikov A, Malyutina S, Halcox J, Bobak M, Nikitin YU, Marmot M, Barbosa D, Kiss G, Orderud F, Amundsen B, Jasaityte R, Loeckx D, Claus P, Torp H, D'hooge J, Kuhl JT, Lonborg J, Fuchs A, Andersen M, Vejlstrup N, Engstrom T, Moller JE, Kofoed KF, Smith LA, Bhan A, Paul M, Monaghan MJ, Zaborska B, Stec S, Sikora-Frac M, Krynski T, Kulakowski P, Pushparajah K, Dashwood D, Barlow A, Nugent K, Miller O, Simpson J, Valeur N, Ersboll MK, Kjaergaard J, Greibe R, Risum N, Hassager C, Sogaard P, Kober L, Sahlen A, Manouras A, Shahgaldi K, Winter R, Brodin L, Popovic D, Nedeljkovic I, Petrovic M, Vujisic-Tesic B, Arandjelovic A, Stojiljkovic S, Stojiljkovic S, Jakovljevic B, Damjanovic S, Ostojic M, Agrios IA, Bramos DB, Skaltsiotis HS, Takos DT, Kaladaridis A, Vasiladiotis NV, Kottis GK, Antoniou AA, Pamboucas CP, Toumanidis STT, Locorotondo G, Porto I, Paraggio L, Fedele E, Barchetta S, De Caterina AR, Rebuzzi AG, Crea F, Galiuto L, Lipiec P, Szymczyk E, Michalski B, Wozniakowski B, Stefanczyk L, Rotkiewicz A, Shim A, Kasprzak JD, Vainer J, Habets J, Lousberg A, Pont De C, Waltenberger J, Farouk H, Heshmat H, Adel A, El Chilali K, Baghdady Y, Sorour K, Gustafsson U, Larsson M, Bjallmark A, Lindqvist P, A'roch R, Haney M, Waldenstrom A, Mladenovic Z, Tavciovski D, Mijailovic Z, Djordjevic - Dikic A, Obradovic S, Matunovic R, Jovic Z, Djuric P, Torp H, Aase S, Dalen H, Sarkola T, Redington AN, Keeley F, Bradley T, Jaeggi E, Sahlen H, Winter R, Brodin L, Sahlen A, Olsen NT, Risum N, Jons C, Mogelvang R, Valeur N, Fritz-Hansen T, Sogaard P. Poster session IV * Friday 10 December 2010, 14:00-18:00. EUROPEAN JOURNAL OF ECHOCARDIOGRAPHY 2010. [DOI: 10.1093/ejechocard/jeq146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Kanda Y, Sakamoto K, Ashizawa M, Sato M, Terasako K, Kikuchi M, Kimura SI, Okuda S, Kako S, Oshima K. Risks and benefits of ovarian shielding in female patients undergoing TBI: a decision analysis. Bone Marrow Transplant 2010; 46:1145-7. [DOI: 10.1038/bmt.2010.240] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Okuda S, Higashiyama T. Pollen tube guidance by attractant molecules: LUREs. Cell Struct Funct 2010; 35:45-52. [PMID: 20562497 DOI: 10.1247/csf.10003] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
Sexual reproduction in flowering plants requires pollen-tube guidance, which is thought to be mediated by chemoattractants derived from target ovules. To date, however, no convincing evidence has been reported of a particular molecule being the true attractant. Emerging data indicate that two synergid cells, which are on either side of the egg cell, emit a diffusible, species-specific signal to attract the pollen tube at the last step of pollen-tube guidance. Recently, it was demonstrated that LUREs (LURE1 and LURE2), cysteine-rich polypeptides secreted from the synergid cell, are the key molecules in pollen-tube guidance. In this review, we summarize the mechanism of pollen-tube guidance, with special focus on gametophytic guidance and the attractants.
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Yoshino O, Hayashi T, Osuga Y, Orisaka M, Asada H, Okuda S, Hori M, Furuya M, Onuki H, Sadoshima Y, Hiroi H, Fujiwara T, Kotsuji F, Yoshimura Y, Nishii O, Taketani Y. Decreased pregnancy rate is linked to abnormal uterine peristalsis caused by intramural fibroids. Hum Reprod 2010; 25:2475-9. [PMID: 20719814 DOI: 10.1093/humrep/deq222] [Citation(s) in RCA: 91] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND The relationship between fibroids and infertility remains an unsolved question, and management of intramural fibroids is controversial. During the implantation phase, uterine peristalsis is dramatically reduced, which is thought to facilitate embryo implantation. Our aims were to evaluate (i) the occurrence and frequency of uterine peristalsis in infertile women with intramural fibroids and (ii) whether the presence of uterine peristalsis decreases the pregnancy rate. METHODS Ninety-five infertile patients with uterine fibroids were examined using magnetic resonance imaging (MRI). Inclusion criteria were as follows: (i) presence of intramural fibroids, excluding submucosal type; (ii) no other significant infertility factors (excluding endometriosis); and (iii) regular menstrual cycles, and MRI performed at the time of implantation (luteal phase day 5-9). The frequency of junctional zone movement was evaluated using cine-mode-display MRI. After MRI, patients underwent infertility treatment for up to 4 months, and the pregnancy rate was evaluated prospectively. RESULTS Fifty-one patients fulfilled the inclusion criteria, and 29 (57%) and 22 (43%) patients were assigned to the low (0 or 1 time/3 min) or high frequency (≥ 2 times/3 min) uterine peristalsis group, respectively. Endometriosis incidence was the same in both groups. Ten out of the 29 patients (34%) in the low-frequency group achieved pregnancy, compared with none of the 22 patients (0%) in the high-frequency group (P< 0.005). Comparing pregnant and non-pregnant cases, 4 of 10 patients (40%) and 9 of 41 patients (22%), respectively, had endometriosis (not significant). CONCLUSIONS A higher frequency of uterine peristalsis during the mid-luteal phase might be one of the causes of infertility associated with intramural-type fibroids.
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Nezu T, Koga M, Kimura K, Shiokawa Y, Nakagawara J, Furui E, Yamagami H, Okada Y, Hasegawa Y, Kario K, Okuda S, Nishiyama K, Naganuma M, Minematsu K, Toyoda K. Pretreatment ASPECTS on DWI predicts 3-month outcome following rt-PA: SAMURAI rt-PA Registry. Neurology 2010; 75:555-61. [PMID: 20697108 DOI: 10.1212/wnl.0b013e3181eccf78] [Citation(s) in RCA: 79] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Ueda S, Yamagishi SI, Okuda S. Anti-vasopermeability effects of PEDF in retinal-renal disorders. Curr Mol Med 2010; 10:279-83. [PMID: 20236056 DOI: 10.2174/156652410791065291] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2009] [Accepted: 09/20/2009] [Indexed: 11/22/2022]
Abstract
The vascular system has an important function of supplying tissues with oxygen and nutrients and clearing waste products. Therefore, the microvasculature must be sufficiently permeable to allow the free, bidirectional passage of small molecules and gases and, to a lesser extent, of plasma proteins. It is well recognized that vascular endothelial growth factor (VEGF) can increase vascular permeability, thus playing important roles in variety of disorders, including diabetic retinopathy, nephrotic syndrome, brain edema, acute respiratory distress syndrome, and sepsis-associated hypotension. However, how vascular permeability is controlled by anti-permeable factors is not fully understood. We have recently found that pigment epithelium derived factor (PEDF), a 50 kD glycoprotein, inhibits retinal, renal and brain hyperpermeability by counteracting the biological actions of VEGF. In this review, we discuss about the pathophysiological role of PEDF in vascular permeability, especially focusing on retinal-renal disorders.
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Fukami K, Yamagishi SI, Okuda S. Development of Enzyme-Linked Immunosorbent Assay System for PEDF and its Clinical Utility. Curr Mol Med 2010; 10:317-20. [DOI: 10.2174/156652410791065318] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2009] [Accepted: 09/02/2009] [Indexed: 11/22/2022]
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Okuda S, Honda M, Ito Y, Aihara E, Kato S, Mitsufuji S, Yoshikawa T, Takeuchi K. Phosphodiesterase isozymes involved in regulating acid secretion in the isolated mouse stomach. JOURNAL OF PHYSIOLOGY AND PHARMACOLOGY : AN OFFICIAL JOURNAL OF THE POLISH PHYSIOLOGICAL SOCIETY 2009; 60 Suppl 7:183-190. [PMID: 20388963] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Received: 10/15/2009] [Accepted: 12/11/2009] [Indexed: 05/29/2023]
Abstract
The effect of subtype-selective phosphodiesterase (PDE) inhibitors on acid secretion was examined in mouse stomachs to investigate which PDE isozymes are involved in the local regulation of this secretion. Male DDY mice were used after 18 h fasting. An isolated stomach was incubated in an organ bath containing buffered solution gassed with 95% O(2)/5% CO(2), while the lumen was perfused with unbuffered solution gassed with 100% O(2). Acid secretion was measured at pH 5.4 using a pH-stat method. Histamine or pituitary adenylate cyclase activating polypeptide (PACAP) was added to the serosal solution. PDE inhibitors were added to the serosal solution 30 min before histamine or PACAP. The secretion of acid in the isolated stomach was increased by histamine or PACAP, and these responses were totally inhibited by famotidine. IBMX alone increased basal acid secretion and significantly enhanced the acid responses to histamine and PACAP. Among the PDE inhibitors tested, only rolipram (PDE4 inhibitor) significantly increased basal acid secretion and potentiated the acid responses to histamine and PACAP. The latter peptide increased histamine release into the medium, and this response was also enhanced by rolipram. Furthermore, rolipram significantly increased cAMP production induced in the isolated stomach by histamine and PACAP. These results suggest that PDE4 is involved in the local regulation of gastric acid secretion via the degradation of cAMP and that the PDE4 inhibitor rolipram increases the secretion of acid by potentiating acid production in parietal cells and enhancing histamine release from enterochromaffin-like cells.
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Kimura S, Oshima K, Okuda S, Sato K, Sato M, Terasako K, Nakasone H, Kako S, Yamazaki R, Tanaka Y, Tanihara A, Higuchi T, Nishida J, Kanda Y. Pharmacokinetics of CsA during the switch from continuous intravenous infusion to oral administration after allogeneic hematopoietic stem cell transplantation. Bone Marrow Transplant 2009; 45:1088-94. [DOI: 10.1038/bmt.2009.316] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Oshima K, Sato M, Terasako K, Kimura S, Okuda S, Kako S, Kanda Y. Target blood concentrations of CYA and tacrolimus in randomized controlled trials for the prevention of acute GVHD after hematopoietic SCT. Bone Marrow Transplant 2009; 45:781-2. [DOI: 10.1038/bmt.2009.213] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Fujimura T, Yamagishi SI, Ueda S, Fukami K, Shibata R, Matsumoto Y, Kaida Y, Hayashida A, Koike K, Matsui T, Nakamura KI, Okuda S. Administration of pigment epithelium-derived factor (PEDF) reduces proteinuria by suppressing decreased nephrin and increased VEGF expression in the glomeruli of adriamycin-injected rats. Nephrol Dial Transplant 2008; 24:1397-406. [DOI: 10.1093/ndt/gfn659] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
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Yoshida Y, Yamagishi S, Ueda S, Yoshimura K, Okuda S, Yamakawa R. Aqueous humour levels of asymmetric dimethylarginine (ADMA) are correlated with pigment epithelium-derived factor (PEDF) in patients with uveitis. J Int Med Res 2008; 35:892-5. [PMID: 18084848 DOI: 10.1177/147323000703500618] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
The association between the aqueous humour levels of asymmetric dimethylarginine (ADMA) and pigment epithelium-derived factor (PEDF) was evaluated. Aqueous humour levels of ADMA and PEDF were measured by high-performance liquid chromatography and enzyme-linked immunosorbent assay, respectively, in 31 uveitis samples and nine cataract control samples. Aqueous humour ADMA and PEDF levels were significantly higher in infectious and non-infectious uveitis patients than in controls (0.67+/-0.04 nmol/ml and 0.55+/-0.03 nmol/ml versus 0.43+/-0.04 nmol/ml for ADMA; 8.22+/-1.45 microg/ml and 5.22+/-0.95 microg/ml versus 1.32+/-0.22 microg/ml for PEDF). A significant positive correlation between ADMA and PEDF levels in aqueous humour was found in control and uveitis patients. These results demonstrated that the aqueous humour level of ADMA is correlated with PEDF in humans and suggest that both ADMA and PEDF in aqueous humour may be elevated in response to inflammation in uveitis.
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Taniguchi R, Okuda S, Tanaka Y, Kojima T. Thermoluminescence from a dosimeter sheet irradiated with accelerated electron beams. RADIAT MEAS 2008. [DOI: 10.1016/j.radmeas.2007.12.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Ohkuma K, Sasaki T, Kamei S, Okuda S, Nakano H, Hamamoto T, Fujihara K, Nakashima I, Misu T, Itoyama Y. Modulation of dendritic cell development by immunoglobulin G in control subjects and multiple sclerosis patients. Clin Exp Immunol 2007; 150:397-406. [PMID: 17900307 PMCID: PMC2219369 DOI: 10.1111/j.1365-2249.2007.03496.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Intravenous immunoglobulin (IVIg) preparations are reportedly effective in inhibiting the relapse of multiple sclerosis (MS), but few reports have investigated the effect of IVIg on dendritic cells (DCs), which are thought to be involved in such relapses. In the system that uses monokines to differentiate DCs from peripheral blood monocytes (Mo-DCs), we investigated the effect of immunoglobulin G (IgG) on these antigen-presenting cells. Using monocytes derived from healthy volunteers, IgG partially inhibited the expression of CD1a, a marker of immature DCs (imDCs), and CD40 and CD80, which are markers associated with T cell activation. In contrast, IgG enhanced the expression of CD83, a marker of mature DCs (mDCs). Furthermore, IgG markedly inhibited the expression of CD49d [very late activation antigen (VLA)-4 alpha4-integrin], the adhesion molecule required for mDCs to cross the blood-brain barrier. We obtained similar results on all the aforementioned cell surface molecules investigated in both healthy controls and MS patients. In addition, IgG treatment of cells from both healthy controls and MS patients inhibited the production of interleukin (IL)-12, a cytokine associated with mDC differentiation, but did not inhibit the production of IL-10. These results suggested the possibility that IgG treatment, apart from its known ability to regulate inflammation, may help to prevent relapses of MS by controlling DC maturation, consequently inhibiting invasion of immune cells into the central nervous system and affecting the cytokine profile.
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Ohkawa A, Yamada M, Sayama H, Sugiyama N, Okuda S, Natsuaki T. Complete nucleotide sequence of a Japanese isolate of Chrysanthemum virus B (genus Carlavirus). Arch Virol 2007; 152:2253-8. [PMID: 17726637 DOI: 10.1007/s00705-007-1039-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2007] [Accepted: 06/27/2007] [Indexed: 11/30/2022]
Abstract
The complete nucleotide sequence of a Chrysanthemum virus B isolate from Japan (CVB-S) has been determined. The genomic RNA of CVB-S is 8,990 nucleotides long, excluding the poly(A) tail and, like that of other carlaviruses, contains six open reading frames (ORFs). Multiple alignment and phylogenetic analyses indicated that the phylogenetic relationship among members of the genus Carlavirus is very diverse, with phlox virus S being the closest relative of CVB. In aphid transmission tests, CVB-S was transmitted at a very low rate by Aphis gossypii, a new vector of the virus.
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Yoshida Y, Yamagishi S, Ueda S, Yoshimura K, Okuda S, Yamakawa R. Aqueous humor levels of asymmetric dimethylarginine (ADMA) are positively associated with monocyte chemoattractant protein-1 (MCP-1) in patients with uveitis. Br J Ophthalmol 2007; 92:93-4. [PMID: 17591667 DOI: 10.1136/bjo.2007.124966] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BACKGROUND/AIMS The aim of the study was to evaluate whether aqueous humor levels of asymmetric dimethylarginine (ADMA) are associated with monocyte chemoattractant protein-1 (MCP-1). METHODS Aqueous humor levels of ADMA and MCP-1 were measured by high-performance liquid chromatography (HPLC) and ELISA, respectively, in 31 uveitis samples and nine cataract control samples. RESULTS Aqueous humor ADMA and MCP-1 levels were significantly higher in infectious or non-infectious uveitis patients than in controls (0.67+/-0.04 nmol/ml vs 0.55+/-0.03 nmol/ml vs 0.43+/-0. 04 nmol/ml (p<0.01) and 29.0+/-11.3 ng/ml vs 4.5+/-1.2 ng/ml vs 0.47+/-0.1 ng/ml (p<0.01), respectively). A positive correlation between ADMA and MCP-1 levels in aqueous humor was found in control and uveitis patients (r = 0.33, p<0.05). CONCLUSION The results demonstrated that aqueous humor levels of ADMA were positively associated with MCP-1 in humans. Our present observations suggest that aqueous humor levels of ADMA may be a novel biomarker of inflammation in uveitis.
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Fukami K, Yamagishi S, Ueda S, Okuda S. Novel therapeutic targets for diabetic nephropathy. Endocr Metab Immune Disord Drug Targets 2007; 7:83-92. [PMID: 17584148 DOI: 10.2174/187153007780832118] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Diabetic nephropathy is a leading cause of end-stage renal failure, which could account for disabilities and high mortality rates in patients with diabetes. Diabetic nephropathy seems to occur as a result of an interaction between metabolic and hemodynamic factors, which activate common pathways that lead to renal damage. Recent large prospective clinical studies have shown that intensive glucose control reduces microvascular complications effectively among patients with diabetes, and the renin-angiotensin system (RAS) is also an important target for both metabolic and hemodynamic derangements in diabetic nephropathy. High glucose, via various mechanisms such as increased production of oxidative stress and advanced glycation end products (AGEs), activation of the RAS and protein kinase C (PKC), and stimulation of the polyol pathway, elicits vascular inflammation and alters gene expression of growth factors and cytokines, thereby it might be involved in the development and progression of diabetic nephropathy. Therefore, to develop novel therapeutic strategies that specifically target these metabolic and hemodynamic derangements is desired for patients with diabetic nephropathy. In this review, we discuss the molecular mechanisms of diabetic nephropathy and review the promising therapeutic targets for this devastating disorder.
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Koike K, Lida S, Usui M, Matsumoto Y, Fukami K, Ueda S, Tamaki K, Kato S, Okuda S. Adult-onset acute tubulointerstitial nephritis and uveitis with Fanconi syndromeCase report and review of the literature. Clin Nephrol 2007; 67:255-9. [PMID: 17474563 DOI: 10.5414/cnp67255] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
We report a case of tubulointerstitial nephritis and uveitis (TINU syndrome) with full type Fanconi syndrome. A 32-year-old woman presented with fatigue, anorexia and weight loss. Laboratory findings showed anemia, polyclonal hypergammaglobulinemia and moderate renal dysfunction. Tubular function abnormalities were normoglycemic glucosuria, panaminoaciduria, phosphaturia and kaliuresis leading to hypokalemia. Renal tubular acidosis and hypouricemia were also evident. Serum antistreptolysin O titer was high. Ocular symptoms (bilateral anterior uveitis) emerged soon after admission. Renal biopsy showed diffuse tubulointerstitial infiltration by lymphocytes and plasma cells without granuloma. Treatment with systemic steroids was given and renal function, and ocular symptom returned to normal with 3 months. Although tubular abnormalities involving TINU syndrome has already been reported, the disease associated with full type Fanconi syndrome has rarely been seen, and systemic steroid may be beneficial in reducing the development of tubulointerstitial injury.
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Yamagishi S, Ueda S, Okuda S. A possible involvement of crosstalk between advanced glycation end products (AGEs) and asymmetric dimethylarginine (ADMA), an endogenous nitric oxide synthase inhibitor in accelerated atherosclerosis in diabetes. Med Hypotheses 2007; 69:922-4. [PMID: 17368960 DOI: 10.1016/j.mehy.2007.01.053] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2007] [Accepted: 01/07/2007] [Indexed: 11/30/2022]
Abstract
Endothelial dysfunction due to reduced bioavailability of nitric oxide (NO) is an early step in the course of atherosclerotic cardiovascular disease (CVD). NO is synthesized from L-arginine via the action of NO synthase (NOS), which is known to be blocked by endogenous L-arginine analogues such as asymmetric dimethylarginine (ADMA). ADMA is a naturally occurring amino acid found in plasma and various types of tissues. Recently, it has been demonstrated that plasma levels of ADMA are elevated in patients with diabetes. It has also been reported that elevated plasma levels of ADMA are associated with increased risks of nonfatal stroke and myocardial infarction in patients with early diabetic nephropathy. These findings suggest that the elevated ADMA in diabetes could contribute to acceleration of atherosclerosis in this population. In diabetes mellitus, the formation and accumulation of advanced glycation end products (AGEs) progress. There is a growing body of evidence to show that AGEs are involved in the development and progression of atherosclerosis in patients with diabetes. Since ADMA is mainly metabolized by dimethylarginine dimethylaminohydrolase (DDAH), it is conceivable that the impairment of DDAH actions by AGEs could be one possible molecular mechanism of the ADMA elevation in diabetic patients. In this paper, we would like to propose the possible ways of testing our hypotheses. Does treatment with metformin, which has a potential effect on the inhibition of glycation reactions in vivo, decrease the levels of ADMA in diabetic patients? If the answer is yes, is this beneficial effect of metformin superior to that of other anti-diabetic agents with equihypoglycemic properties? Does treatment with pyridoxamine, a post-Amadori inhibitor (so-called Amadorins) of AGE formation, also reduce the levels of ADMA and subsequently improve endothelial dysfunction in diabetic patients? Are the ADMA-lowering effects of these agents associated with an increase of DDAH expression and/or activity in endothelial cells? These clinical studies could clarify whether AGEs are involved in the elevation of ADMA in patients with diabetes via suppression of DDAH expression and/or activity, thus providing a novel molecular mechanism for accelerated atherosclerosis in diabetes.
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Mizubayashi H, Okuda S. Elastic after-effect studies of self-interstitials in tungsten after fast neutron irradiation at 5 K. ACTA ACUST UNITED AC 2006. [DOI: 10.1080/00337578108210049] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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74
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Jonathan N, Melliar-Smith C, Okuda S, Slater D, Timlin D. Initial vibrational energy level distributions determined by infra-red chemiluminescence. Mol Phys 2006. [DOI: 10.1080/00268977100102831] [Citation(s) in RCA: 53] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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75
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Roozendaal B, Okuda S, de Quervain DJF, McGaugh JL. Glucocorticoids interact with emotion-induced noradrenergic activation in influencing different memory functions. Neuroscience 2006; 138:901-10. [PMID: 16310958 DOI: 10.1016/j.neuroscience.2005.07.049] [Citation(s) in RCA: 268] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2005] [Revised: 07/15/2005] [Accepted: 07/25/2005] [Indexed: 11/23/2022]
Abstract
Extensive evidence from rat and human studies indicates that glucocorticoid hormones influence cognitive performance. Posttraining activation of glucocorticoid-sensitive pathways dose-dependently enhances the consolidation of long-term memory. Glucocorticoid effects on memory consolidation rely on noradrenergic activation of the basolateral amygdala and interactions of the basolateral amygdala with other brain regions. Glucocorticoids interact with the noradrenergic system both at a postsynaptic level, increasing the efficacy of the beta-adrenoceptor-cyclic AMP/protein kinase A system, as well as presynaptically in brainstem noradrenergic cell groups that project to the basolateral amygdala. In contrast, memory retrieval and working memory performance are impaired with high circulating levels of glucocorticoids. Glucocorticoid-induced impairment of these two memory functions also requires the integrity of the basolateral amygdala and the noradrenergic system. Such critical interactions between glucocorticoids and noradrenergic activation of the basolateral amygdala have important consequences for the role of emotional arousal in enabling glucocorticoid effects on these different memory functions.
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Tanaka T, Sato F, Iida T, Nishitani T, Ochiai K, Okuda S, Ikeda T. Electrical properties of mineral-insulated cable under fusion neutron irradiation. FUSION ENGINEERING AND DESIGN 2003. [DOI: 10.1016/s0920-3796(03)00358-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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77
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Naito Y, Tsujino T, Okuda S, Kawasaki D, Okumura T, Morimoto S, Masai M, Sakoda T, Fujioka Y, Ohyanagi M. 1P-0102 Circadian expression of plasminogen activator inhibitor-1 (PAI-1) and clock genes in aorta of Wistar-Kyoto rats (WKY) and spontaneously hypertensive rats (SHR). ATHEROSCLEROSIS SUPP 2003. [DOI: 10.1016/s1567-5688(03)90177-2] [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]
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78
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Sakurai Y, Okuda S, Nishiguchi H, Nagayama N, Yokoyama M. Microlens array fabrication based on polymer electrodeposition. ACTA ACUST UNITED AC 2003. [DOI: 10.1039/b304206e] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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79
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Tsuda K, Okuda S, Saeki S, Imura S, Sato Y, Mishima H. Communications - The Total Synthesis of Nordehydro-α-matrinidine (4,5,6,8,9,10-Hexahydropyrido[3,4,5i,j]quinolizine). J Org Chem 2002. [DOI: 10.1021/jo01111a024] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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80
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Kanda F, Okuda S, Matsushita T, Takatani K, Kimura KI, Chihara K. Steroid myopathy: pathogenesis and effects of growth hormone and insulin-like growth factor-I administration. HORMONE RESEARCH 2002; 56 Suppl 1:24-8. [PMID: 11786681 DOI: 10.1159/000048130] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Glucocorticoids have been widely used in the treatment of autoimmune and other diseases. Chronic steroid use, however, could cause proximal muscle weakness and atrophy, termed steroid myopathy. The onset of steroid myopathy is usually insidious and there are no specific laboratory findings except for elevated urinary creatine excretion. Muscle biopsy reveals non-specific type II fiber atrophy. There are many reports showing preventive effects of either growth hormone (GH) or insulin-like growth factor (IGF)-I on steroid myopathy. The pathogenesis of steroid myopathy is not fully understood. Recently, glutamine synthetase has been reported to play a key role in steroid myopathy. GH as well as IGF-I decreased the steroid-induced glutamine synthetase activity in skeletal muscle.
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Ariga K, Yonenobu K, Nakase T, Kaneko M, Okuda S, Uchiyama Y, Yoshikawa H. Localization of cathepsins D, K, and L in degenerated human intervertebral discs. Spine (Phila Pa 1976) 2001; 26:2666-72. [PMID: 11740352 DOI: 10.1097/00007632-200112150-00007] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
STUDY DESIGN Localization of cathepsins D, K, and L in degenerated intervertebral discs was examined by immunohistochemistry. OBJECTIVES To determine the involvement of cathepsins in the pathomechanism of intervertebral disc degeneration by monitoring the immunolocalization of cathepsins in degenerated intervertebral disc tissue. SUMMARY OF BACKGROUND DATA Cathepsins D, K, and L are enzymes that contribute to the matrix destruction seen in the articular cartilage affected by osteoarthritis and rheumatoid arthritis. However, little is known about the contribution of these cathepsins to intervertebral disc degeneration. METHODS Paraffin-embedded sections of degenerated intervertebral disc tissue collected at the time of surgery (13 discs from 12 patients) were immunohistochemically stained with antibodies for cathepsins D, K, and L. For further characterization of the stained cells, immunohistochemical detection of CD68 and TRAP staining were performed. RESULTS Hematoxylin and eosin staining revealed obvious signs of degeneration in all sections. Cathepsins D and L were immunolocalized in disc fibrochondrocytes at various sites exhibiting degeneration. Cathepsins K were found in tartrate-resistant acid phosphatase-positive multinucleated cells, in particular near the cleft within the cartilaginous endplate. However, few cells were positive for these cathepsins in anulus fibrosus that maintained the lamellar structure of collagen fibers. CONCLUSIONS Marked expression of cathepsins D and L was observed at the site of degeneration. Cathepsins D and K localized in tartrate-resistant acid phosphatase-positive multinucleated cells existed at the cleft between the cartilaginous endplate and vertebral body. The site-specific localization of these cathepsins suggests the association of these proteinases with endplate separation and disorganization of the anulus fibrosus in degenerative spinal disorders.
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Haramaki R, Tamaki K, Fujisawa M, Ikedo H, Haramaki N, Okuda S. Steroid therapy and urinary transforming growth factor-beta1 in IgA nephropathy. Am J Kidney Dis 2001; 38:1191-8. [PMID: 11728950 DOI: 10.1053/ajkd.2001.29209] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Transforming growth factor-beta1 (TGF-beta1) has an important role in the pathogenesis of glomerular damage by influencing matrix metabolism. An association of TGF-beta1 with glomerulosclerosis and interstitial fibrosis has been shown in various renal diseases, suggesting that TGF-beta1 may serve as a diagnostic marker of glomerular diseases. The aim of this study is to determine the usefulness of urinary TGF-beta1 values to monitor therapeutic effects of steroids in patients with immunoglobulin A (IgA) nephropathy. Concentrations and activation rates of TGF-beta1 (mature/total) were determined in urine of patients with renal diseases by means of a double-antibody enzyme immunoassay. The urinary TGF-beta1 level before steroid therapy was compared with renal histological characteristics, creatinine clearance, and proteinuria in patients with a variety of renal diseases. Urinary excretion of total and mature TGF-beta1 was significantly greater in patients with crescentic glomerulonephritis and IgA nephropathy than in healthy controls, whereas the activation rate of urinary TGF-beta1 was similar among patients with other renal diseases. Urinary TGF-beta1 excretion at the time of renal biopsy significantly correlated with the degree of crescent formation in patients with IgA nephropathy, but not in those with glomerular sclerosis or tubulointerstitial fibrosis. Urinary excretion of total and mature TGF-beta1 was reduced in patients with IgA nephropathy after treatment with prednisolone (0.8 mg/kg/d) for 1 month. The activation rate of urinary TGF-beta1 also decreased significantly after steroid therapy. Urinary TGF-beta1 values therefore may be useful to assess disease activity or the effects of steroid therapy in patients with IgA nephropathy.
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Meng W, Yonenobu K, Ariga K, Nakase T, Okuda S, Obata K, Yoshikawa H. Localization of cathepsins G and L in spontaneous resorption of intervertebral discs in a rat experimental model. JOURNAL OF MUSCULOSKELETAL & NEURONAL INTERACTIONS 2001; 2:171-6. [PMID: 15758467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
To determine the involvement of cathepsins G and L in the mechanism of spontaneous resorption of herniated intervertebral discs, localization of these cathepsins in this process was examined immunohistochemically using a rat model of autologous transplantation of coccygeal discs. Rat coccygeal discs were resected and autotransplanted into the subcutaneous space of the skin of the back. Paraffin-embedded sections of intervertebral disc tissue, harvested at various post-transplantational periods, were immunohistochemically stained with antibodies for cathepsin G, cathepsin L, MMP-1, MMP-3 and ED-2. The number of positive cells was counted in each part of the transplanted discs. Immunolocalization of cathepsins G and L in various types of disc cells was first observed early in the post-transplantation period. From two days after the operation, histology showed invasion by granulation tissue, with many macrophages, in all sections. Subsequently, the number of macrophages in granulation tissue was observed to increase, along with a gradual increase in the percentage of cells positive for MMP-1 and MMP-3. In addition to the ability of cathepsins G and L to degrade major extracellular matrix components of intervertebral discs, cathepsin G is capable of activating latent pro-MMPs. The up-regulation of cathepsins G and L in the intervertebral disc tissue in this spontaneous resorption model suggests that these proteinases may be involved in degradation of extracellular matrix, leading to the natural resorption of herniated discs.
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Okuda M, Miyashiro E, Koike M, Okuda S, Minami K, Yoshikawa N. Breast-feeding prevents Helicobacter pylori infection in early childhood. Pediatr Int 2001; 43:714-5. [PMID: 11737758 DOI: 10.1046/j.1442-200x.2001.01481.x] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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85
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Ariga K, Miyamoto S, Nakase T, Okuda S, Meng W, Yonenobu K, Yoshikawa H. The relationship between apoptosis of endplate chondrocytes and aging and degeneration of the intervertebral disc. Spine (Phila Pa 1976) 2001; 26:2414-20. [PMID: 11707702 DOI: 10.1097/00007632-200111150-00004] [Citation(s) in RCA: 104] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
STUDY DESIGN Apoptosis in cervical intervertebral disc cells and cartilaginous endplate cells was examined by the nick end labeling (TUNEL) technique during the process of natural aging and in a mouse experimental spondylosis model. OBJECTIVES To determine the role of apoptosis in aging and degeneration of intervertebral discs by monitoring chronologic changes in the quantity and localization of apoptotic cells. SUMMARY OF BACKGROUND DATA Apoptosis occurs within human intervertebral discs, but little is known about the pathologic significance of this process. On the other hand, the cartilaginous endplate is known to decrease in thickness and to disappear with aging and degeneration. The cause of this age-related change remains unclear. METHODS A mouse spondylosis model was prepared via surgical resection of the posterior spinal element in 12 mice to examine the experimentally induced spondylosis process. Eighteen naturally aged mice were also used to examine the influence of aging. Paraffin-embedded midsagittal sections of the cervical spine were obtained 2, 3, 6, and 12 months after surgery in the spondylosis model and in the age-matched naturally aged mice, as well as in 4-week-old and 18-month-old naturally aged mice. Sections were stained with hematoxylin and eosin, safranin-O, and the TUNEL procedure. The number of apoptotic cells and vital cells were counted in the cartilaginous endplate of the intervertebral disc excluding the growth cartilage, and the degree of disappearance of the cartilaginous endplate was evaluated. RESULTS Apoptosis, particularly noticeable in the cartilaginous endplate, increased with age and resulted in a marked decrease in cell density. Subsequently, the structure of the cartilaginous endplate began to disappear. Apoptosis was more evident and the structure of the cartilaginous endplate began to disappear more rapidly in the surgically treated group than in the naturally aged group. CONCLUSIONS TUNEL-positive cells in the cartilaginous endplate increased with age, with destruction of the cartilaginous endplate after apoptosis (TUNEL-positive cell death). The application of the spondylosis model increased the incidence of apoptosis preceding the development of spondylosis. This suggests that apoptosis plays a role in the age-related changes seen in the cartilaginous endplate of the intervertebral disc and in the experimentally induced spondylosis process.
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Okuda S, Myoui A, Ariga K, Nakase T, Yonenobu K, Yoshikawa H. Mechanisms of age-related decline in insulin-like growth factor-I dependent proteoglycan synthesis in rat intervertebral disc cells. Spine (Phila Pa 1976) 2001; 26:2421-6. [PMID: 11707703 DOI: 10.1097/00007632-200111150-00005] [Citation(s) in RCA: 73] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
STUDY DESIGN Age-related fluctuations in insulin-like growth factor-I dependent proteoglycan synthesis in rat intervertebral disc cells were investigated. OBJECTIVES The purpose of this study was to determine whether synthetic responses to insulin-like growth factor-I decline with age and to explore the possibility that an age-related increase in the expression of insulin-like growth factor binding proteins suppresses matrix synthesis in intervertebral disc cells. SUMMARY AND BACKGROUND DATA Several studies have reported that the responsiveness of chondrocytes to insulin-like growth factor-I decreases with age and furthermore that this phenomenon may be related to increased expression of insulin-like growth factor binding proteins by chondrocytes. MATERIALS AND METHODS Nucleus pulposus tissue and cells were obtained from the coccygeal vertebrae of 8-week-old, 40-week-old, and 120-week-old rats. Age-related changes in the expression of insulin-like growth factor-I and its receptor were assessed together with insulin-like growth factor-I dependent proteoglycan synthesis by the cultured nucleus pulposus cells. Also, western blot analysis of insulin-like growth factor binding protein-1 was carried out, and further examination was performed of insulin-like growth factor-I signal transduction through tyrosine phosphorylation of insulin receptor substrate-1, which is a signal transducer of insulin-like growth factor-I. RESULTS Semiquantitative reverse transcription polymerase chain reaction analysis indicated that the expression of insulin-like growth factor-I receptor in 120-week cells decreased clearly in comparison with the cells of younger animals. By contrast, insulin-like growth factor-I dependent proteoglycan synthesis decreased with age, and the sharpest decline of synthesis was found between 8-week and 40-week cells, although the level of insulin-like growth factor-I/insulin-like growth factor-I receptor gene expression was maintained in 40-week-old animals. Consistent with the results of proteoglycan synthesis, the expression of phosphorylated insulin receptor substrate-1 decreased with age. Thus, the expression of insulin-like growth factor binding protein-1 and proteoglycan synthesis was investigated by use of Long R3 insulin-like growth factor-I, which was not influenced by insulin-like growth factor binding proteins. Insulin-like growth factor binding protein-1 was strongly expressed in 40-week cells in comparison with the expression in 8-week cells. Furthermore, proteoglycan synthesis in 40-week cells supplemented with Long R3 insulin-like growth factor-I was upregulated in comparison with that in 40-week cells supplemented with insulin-like growth factor-I. CONCLUSION The present findings indicate that the age-related decline in insulin-like growth factor-I dependent proteoglycan synthesis in nucleus pulposus is caused, at least in part, by the increase in insulin-like growth factor binding proteins at the early stages of aging, and further suggest that a loss of proteoglycan synthesis during the late stages of aging is caused by the downregulation of insulin-like growth factor-I receptor in addition to an increase in insulin-like growth factor binding proteins.
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Okuda S, Kanda F, Nishimoto K, Sasaki R, Chihara K. Hyperkalemic periodic paralysis and paramyotonia congenita--a novel sodium channel mutation. J Neurol 2001; 248:1003-4. [PMID: 11757950 DOI: 10.1007/s004150170059] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Kato S, Ueda S, Tamaki K, Fujii M, Miyazono K, ten Dijke P, Morimatsu M, Okuda S. Ectopic expression of Smad7 inhibits transforming growth factor-beta responses in vascular smooth muscle cells. Life Sci 2001; 69:2641-52. [PMID: 11712667 DOI: 10.1016/s0024-3205(01)01350-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Vascular injury stimulates the cytokine-growth factor network in the vascular wall, including transforming growth factor-beta (TGF-beta). Reportedly, the intracellular signaling of TGF-beta is mediated by Smad proteins. We tested the effects of the ectopic expression of inhibitory Smads in cultured rat smooth muscle cells (SMC) to identify the role of TGF-beta/Smad signaling on the phenotypic modulation of SMC. The cells exposed to human recombinant TGF-beta1 (10 ng/ml) were stimulated Smad2 phosphorylation. Infection with the replication-deficient adenovirus vector expressing Smad7, but not bacterial beta-galactosidase or Smad6, was found to inhibit TGF-beta-induced Smad2 phosphorylation in a dose-dependent manner. TGF-beta suppressed the serum-induced proliferation of SMC from 36.3% to 51.0% (p<0.01), as measured by hand-counting, and this inhibition was attenuated by the ectopic expression of Smad7 (from 30.7% to 74.8% of the reduction of TGF-beta-response, p<0.05), but not Smad6. A BrdU incorporation assay also showed that TGF-beta-mediated growth inhibition was attenuated by exogenous Smad7 and that this inhibition can be reversed by an additional expression of exogenous Smad2. TGF-beta increased the expression of alpha-smooth muscle actin and myosin heavy chain by 1.3-fold and 1.6-fold in comparison to the control, respectively, and these increases were attenuated by exogenous Smad7, but not Smad6. Our data indicate that Smads mediate TGF-beta responses on SMC phenotypes. Smad7, but not Smad6, may specifically act as an inhibitor of TGF-beta responses.
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Okuda S, Myoui A, Nakase T, Wada E, Yonenobu K, Yoshikawa H. Ossification of the ligamentum flavum associated with osteoblastoma: a report of three cases. Skeletal Radiol 2001; 30:402-6. [PMID: 11499782 DOI: 10.1007/s002560100324] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
We report three cases of spinal osteoblastoma with ossification of the ligamentum flavum (OLF) adjacent to the tumor. The patients in this report, all young adults, had no symptoms except for back pain. Computed tomography (CT) demonstrated a typical radiolucent nidus in the spinal pedicle/lamina with a dense sclerotic rim. In addition, ectopic bone formation at the insertion point of the ligamentum flavum adjacent to the tumor was clearly illustrated. Magnetic resonance imaging (MRI) revealed the tumor and surrounding inflammatory responses, but OLF was not detected clearly. Histological examination revealed endochondral ossification of the ligamentum flavum that is quite unusual for normal young adults. Immunohistochemical assays in one case demonstrated that bone morphogenetic protein (BMP)-2/4 was expressed in the osteoblastic tumor cells. This case raises the possibility that BMPs secreted from the tumor cells triggered ectopic ossification in the spinal ligament.
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Ohkoshi M, Okuda S. Growth inhibition of mouse skin tumor by serine protease inhibitor ONO-3403. Anticancer Res 2001; 21:1803-8. [PMID: 11497262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/21/2023]
Abstract
The new serine protease inhibitor, ONO-3403 is an analog of FOY-305 (Foypan). The IC50s values of ONO-3403 toward serine proteases, such as trypsin, plasmin, kallikrein and thrombin are much lower than that of FOY-305. To investigate the growth-suppressing effect of ONO-3403 on 3-methylcholanthrene-induced autochthonous solid tumors in mice, ONO-3403 was intraperitoneally administered to mice at a dose of 4 mg/kg twice a day for 5 weeks. All seven mice receiving the drug had a solitary tumor and showed potent growth suppression (p<0.001) without any apparent side effects such as hair loss and body weight loss. The results suggest that ONO-3403 may be useful for the treatment of squamous cell carcinoma.
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Kimura K, Kanda F, Okuda S, Chihara K. Insulin-like growth factor 1 inhibits glucocorticoid-induced glutamine synthetase activity in cultured L6 rat skeletal muscle cells. Neurosci Lett 2001; 302:154-6. [PMID: 11290410 DOI: 10.1016/s0304-3940(01)01667-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
We previously demonstrated the preventive effect of insulin-like growth factor 1 (IGF-1) on steroid myopathy in rats. However, the mechanism by which IGF-1 inhibits steroid myopathy remains unclear. Recent studies have revealed that glutamine synthetase (GS) is induced by glucocorticoid and may be related to the development of steroid myopathy. In this study, we examined whether IGF-1 affected steroid-induced enhancement of GS activity in L6 rat skeletal muscle cells. Dexamethasone (10(-6) M) significantly increased GS activity in L6 cells (P < 0.01). IGF-1 dose-dependently inhibited dexamethasone-induced GS activity. Addition of IGF-1 (750 ng/ml) decreased GS activity to approximately 50% of that with dexamethasone alone (P < 0.01). These results suggest that a decrease in GS activity may be involved in the preventive effect of IGF-1 on steroid myopathy.
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Ohkoshi M, Okuda S. Growth inhibition of mouse autochthonous skin cancer by oral administration of new serine protease inhibitor ONO-3403. Eur J Cancer 2001. [DOI: 10.1016/s0959-8049(01)80774-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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94
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Tamai O, Oka N, Kikuchi T, Koda Y, Soejima M, Wada Y, Fujisawa M, Tamaki K, Kawachi H, Shimizu F, Kimura H, Imaizumi T, Okuda S. Caveolae in mesangial cells and caveolin expression in mesangial proliferative glomerulonephritis. Kidney Int 2001; 59:471-80. [PMID: 11168929 DOI: 10.1046/j.1523-1755.2001.059002471.x] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
BACKGROUND Caveolae are plasma membrane invaginations that have a diameter of 40 to 60 nm. Recent evidences have demonstrated that caveolae contain a variety of signal transduction molecules. Caveolin is a marker protein of caveolae and has been proposed to play a negative regulatory role in signal transduction. The aim of this study was to investigate the behavior of caveolae and caveolin in experimental glomerulonephritis, the localization of both platelet-derived growth factor (PDGF) and transforming growth factor-beta (TGF-beta) receptors in the caveolae membrane, and the regulation of caveolin expression in cultured mesangial cells. METHODS The expression of caveolin-1 was examined by immunoblotting and immunohistology using anti-caveolin antibody in anti-Thy-1 nephritis. The caveolae membrane fraction of mesangial cells was isolated by sucrose gradient method and expression of PDGF receptor and TGF-beta receptor were detected by immunoblotting. The effects of mitogens such as phorbol 12-myristate 13-acetate (PMA) and PDGF on the expression of caveolin-1 protein and mRNA were also examined in cultured mesangial cells. RESULTS Caveolin-1 was mainly expressed in glomeruli and was significantly up-regulated in anti-Thy-1 nephritis rat kidney. In cultured mesangial cells, the membrane invaginations of caveolae were revealed by electron microscopy. PDGF receptors abounded in the caveolae membrane and rapidly changed their subcellular distribution after ligand stimulation. In contrast, TGF-beta receptors abounded in the non-caveolae membrane and did not change after ligand stimulation. Decreases in caveolin-1 protein, which were associated with increases in mRNA expression after the exposure of PMA or PDGF-BB, suggested an increased turnover of caveolin-1 in mesangial cells stimulated by mitogens. CONCLUSION To our knowledge, this electron microscopical study is the first to demonstrate the presence of caveolae in cultured mesangial cells. Caveolae integrate PDGF receptors, and caveolin-1 may play a role in the pathogenesis of the mesangial proliferative glomerular diseases through PDGF signaling.
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Nakase T, Ariga K, Miyamoto S, Okuda S, Tomita T, Iwasaki M, Yonenobu K, Yoshikawa H. Distribution of genes for bone morphogenetic protein-4, -6, growth differentiation factor-5, and bone morphogenetic protein receptors in the process of experimental spondylosis in mice. J Neurosurg 2001; 94:68-75. [PMID: 11147870 DOI: 10.3171/spi.2001.94.1.0068] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
OBJECT Because little is known about the molecular mechanisms underlying the process of spondylosis, the authors examined the extent of genetic localization of several members of bone morphogenetic protein (BMP) and BMP receptors in chondrogenesis during the process of inducing spondylosis in their previously established experimental mice model. METHODS Experimental spondylosis was induced in 5-week-old ICR mice. The cervical spine was harvested chronologically, and histological sections were prepared. Messenger RNA for BMP-4, growth and differentiation (GDF)-5, BMP-6, and BMP receptors (ALK-3, -6, and BMP-RII) was localized in the tissue sections by in situ hybridization. In the early stage, BMP-4-derived mRNA was localized mainly in cells in the anterior margin of the cervical discs, together with ALK-6 and BMP-RII mRNA. No GDF-5 and BMP-6 mRNA was detected at this stage. In the late stage, cells positive for BMP-4 decreased, whereas GDF-5 and BMP-6 mRNA were localized in cells undergoing chondrogenesis. The ALK-3 mRNA began to appear in this stage, as did ALK-6 and BMP-RII. CONCLUSIONS The localization of transcripts for BMP-4, -6, and GDF-5 as well as BMP receptors shown during the present experimental model indicate the possible involvement of molecular signaling by these BMPs in the chondrogenic progress in spondylosis.
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Kohno K, Matsuoka H, Takenaka K, Miyake Y, Okuda S, Nomura G, Imaizumi T. Depressor effect by exercise training is associated with amelioration of hyperinsulinemia and sympathetic overactivity. Intern Med 2000; 39:1013-9. [PMID: 11197783 DOI: 10.2169/internalmedicine.39.1013] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
OBJECTIVE In hypertensive subjects, exercise training is a therapeutic modality that not only lowers blood pressure but also corrects metabolic abnormality, such as hyperinsulinemia. Insulin causes sympatho-excitation via the modification of baroreflex, norepinephrine release, or central sympathetic outflow. However, the link between neural and metabolic changes by exercise training in hypertensive patients remains unknown. The aim of this study was to examine whether or not the blood pressure lowering effect of exercise training is associated with the improvement of insulin sensitivity in conjunction with the inhibition of sympathetic tone in hypertensive patients. METHODS We evaluated plasma insulin levels, arterial baroreflex function and humoral parameters before and after exercise training. Twenty-nine patients with essential hypertension under hospitalization participated in the study. Before and after three weeks of exercise training (75% max VO2, 6 min, q.i.d.), 24-hour blood pressure recordings, arterial baroreflex function testing and 75 g glucose tolerance tests were conducted. Area under the curve of insulin (sigma insulin) to glucose load was calculated as an index of hyperinsulinemia. RESULTS Three weeks of exercise training decreased the 24-hour mean arterial pressure, heart rate and sigma insulin, and improved barorefiex function. There was a significant correlation between the reduction of arterial pressure and the change in sigma insulin. Furthermore, the reduction of sigma insulin was correlated with the improvement of baroreflex function and with the decrease in heart rate. CONCLUSIONS Exercise training lowered the arterial pressure, with parallel changes in heart rate, baroreflex function and insulin resistance. The correction of sympathetic overactivity was closely associated with the amelioration of hyperinsulinemia. Our results suggest that the improvement of neuro-metabolic factors may be involved in the depressor effect caused by exercise training.
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Kobayashi M, Koike M, Sakiyama M, Okuda S, Okuda M, Tanaka T, Unno A, Nittono H, Takei H, Murai T, Yoshimura T, Kurosawa T. 3beta-hydroxy-delta5-C27-steroid dehydrogenase/isomerase deficiency in a 23-year-old woman. Pediatr Int 2000; 42:685-8. [PMID: 11192529 DOI: 10.1046/j.1442-200x.2000.01292.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Ogata H, Kubo M, Tamaki K, Hirakata H, Okuda S, Fujishima M. Crescentic glomerulonephritis due to rifampin treatment in a patient with pulmonary atypical mycobacteriosis. Nephron Clin Pract 2000; 78:319-22. [PMID: 9546693 DOI: 10.1159/000044942] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
A 64-year-old male was treated continuously with rifampin, isoniazid and streptomycin for pulmonary atypical mycobacteriosis, Mycobacterium kansasii. Five weeks after beginning the treatment, the patient suddenly developed acute renal failure. A renal biopsy showed crescentic lesions characteristic of rapidly progressive glomerulonephritis with moderate interstitial changes. Serum antirifampin antibody was detected, and the cessation of rifampin treatment was followed by a rapid spontaneous recovery of the patient's renal function. This is, to our knowledge, the first case of rapidly progressive crescentic glomerulonephritis associated with rifampin treatment where circulating antirifampin antibody is demonstrated and the renal function spontaneously improved after discontinuing rifampin treatment.
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Ishibashi M, Nishida H, Okuda S, Suekane S, Hayabuchi N. Localization of parathyroid glands in hemodialysis patients using Tc-99m sestamibi imaging. Nephron Clin Pract 2000; 78:48-53. [PMID: 9453404 DOI: 10.1159/000044882] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
UNLABELLED Tc-99m sestamibi parathyroid imaging was performed in 28 patients with chronic renal failure to localize abnormal parathyroid glands in patients receiving hemodialysis, and compared the localization with ultrasonography and magnetic resonance (MR) imaging. METHODS We imaged 28 patients with secondary hyperparathyroidism using Tc-99m sestamibi (about 600 MBq) at 10 min and 2-3 h following radiotracer injection. In addition, mediastinal images were recorded at approximately 1 h following injection to identify ectopic parathyroid glands. All patients also were evaluated with ultrasonography and MR imaging. RESULTS Tc-99m sestamibi scans demonstrated focal uptake in 60 glands of the 28 patients, and was categorized as slight uptake in 71.7% (43/60), and intense uptake in 28.3% (17/60). Seventeen of the 28 patients underwent parathyroidectomy. A total of 64 glands were resected. Sestamibi imaging was more sensitive for localizing abnormal parathyroid glands than ultrasonography or MR imaging. Histologic evaluation of 27 resected parathyroid glands revealed that the number of oxyphil or chief cells was not proportional to sestamibi uptake. CONCLUSION Our data indicate that Tc-99m sestamibi imaging should be used initially to localize abnormal parathyroid glands in hemodialysis patients with secondary hyperparathyroidism, prior to MR imaging or ultrasonography. Sestamibi uptake in parathyroid glands may not correlate with the degree of hypercellularity of oxyphil cells.
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Ota Z, Ota K, Ota S, Shikata K, Ogura T, Makino H, Okuda S. Dynamic analysis on rupture of glomerular basement membranes in glomerulonephritis. Nephron Clin Pract 2000; 79:345-7. [PMID: 9678438 DOI: 10.1159/000045061] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
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