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da Cruz MC, Espadinha A, Viegas M, Silva A, Sequeira T, Gomes N, Pereira P, Feijó A, Melo M, Brás S, Serra F, Galhos R, Ramalho M, Ferreira P, Teixeira N, Condon O, Vieira G. AVALIATION OF THE QUALITY INDICATOR RADIOTHERAPY GLOBAL TREATM ENT TIME. Radiother Oncol 2009. [DOI: 10.1016/s0167-8140(12)73248-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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277
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Madureira L, Mateus D, Jacob K, Rosa M, Varelas I, Sousa M, Moreno L, Clemente SO, Correia R, Silva A, Fernandes P, Fernandes A, Rato A, Ferreira P, Teixeira N, Ramalho M. ATTENUATION OF TREATMENT COUCHES USED IN RADIOTHERAPY. Radiother Oncol 2009. [DOI: 10.1016/s0167-8140(12)72801-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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278
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Lee J, Hirano Y, Fukunaga M, Silva A, Dyun J. Investigating the sources of phase contrast: iron oxide nanoparticle study to exclude deoxyhemoglobin as a major source for the gray/white matter phase contrast. Neuroimage 2009. [DOI: 10.1016/s1053-8119(09)70115-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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279
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Schütz TCB, Andersen ML, Silva A, Tufik S. Distinct gender-related sleep pattern in an acute model of TMJ pain. J Dent Res 2009; 88:471-6. [PMID: 19493893 DOI: 10.1177/0022034509334618] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Since it is recognized that acute inflammation of the temporomandibular joint results in sleep disturbances in male rats, and that the orofacial region may display a site-specific effect of ovarian hormones on nociception, we hypothesized that distinct genders would respond differently when subjected to this inflammatory acute orofacial pain. Sleep was monitored after injection of saline/Freund's adjuvant into the temporomandibular joint in male and female (proestrus and diestrus phases) rats. Progesterone and stress-related hormones were also assessed. In males, Freund's adjuvant induced a significant nociceptive response and sleep disturbances. Behavior and sleep architecture in the females remained unaffected. Our results suggest that females and males present distinct responses to an acute model of orofacial pain.
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Treguer F, Mabo P, Tassin A, Prunier F, Furber A, Daubert JC, Solnon A, Dupuis JM, Jarverud K, Broome M, Noren K, Svensson T, Hjelm S, Bjorling A, Val-Mejias JE, Doshi S, Kroll M, Oza A, Shah S, Doshi SK, Val-Mejias JE, Pittaro M, Reeves R, Payne J, Kroll M, Graumann R, Oza A, Maury P, Raczka F, Pasquie JL, Beck L, Taieb J, Qu F, Shah R, Hallier B, Gutleben K, Brachmann J, Vogt J, Boriani G, Bowes R, Casset C, Krumel F, Johansson I, Blixt F, Andersson F, Stromberg A, Perzanowski C, Irnich W, Larsen P, Lever N, Wasniewski M, Mitkowski P, Baszko A, Ochotny R, Grajek S, Deering TF, Golman DS, Epstein A, Greenberg S, Gupta M, Lee K, Hero M, Magne I, Souques M, Moro E, Marcon C, Allocca G, Marras E, Sitta N, Da Soghe M, Varbaro A, Delise P, Chiladakis I, Kalogeropoulos A, Koutogiannis N, Arvanitis P, Zagli F, Nikokiris G, Alexopoulos D, Szydlo K, Wita K, Trusz-Gluza M, Tabor Z, Anichkov D, Shostak N, Platonova A, Polovina M, Potpara T, Grujic M, Mujovic N, Carmo P, Adragao P, Cavaco D, Parreira L, Santos K, Morgado F, Marcelino S, Silva A, Rumeau P, Maury P, Duparc A, Hebrard A, Mondoly P, Rollin A, Delay M, Mizutani N, Yonemoto T, Fukuta M, Ito T, Herrera Siklody C, Blum T, Schiebeling-Roemer J, Restle C, Weber R, Stockinger J, Kalusche D, Arentz T, Fouche R, Fromentin S, Lassabe G, Sager C. Poster Session 2: Sudden death and ICD: technical aspects. Europace 2009. [DOI: 10.1093/europace/euq217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Sankaranarayanan R, James MA, Burtchaell S, Holloway R, Hoyt RH, Mchenry B, Fedewa MM, Penot JP, Jacquot C, Bonet JF, Pochet H, Jean S, Fressonnet R, Penot MP, Weiss A, Abecasis JA, Leal S, Monge J, Fartouce S, Santos JM, Silva A, Costa R, Leao MIP, Mori RF, Giannini G, Costa SPL, Silva KR, Penteado IM, Palka P, Lange A, Donnelly JE, Adsett M, Hayes JR, Stafford WJ, Hirayama Y, Kawamura Y, Sato N, Saito T, Hotta D, Kikuchi K, Ohori K, Hasebe N, Cabrera Bueno F, Alzueta J, Fernandez-Pastor J, Pena-Hernandez JL, Molina-Mora MJ, Barrera A, De Teresa E, Ayala Paredes F, Roux JF, Scazzuso F, Lavallee L, Poirier M, Chaumont J, Iorgulescu C, Vasile A, Dorobantu M, Vatasescu RG, Lefflerova K, Lupinek P, Bytesnik J, Cihak R, Krausova R, Vancura V, Kautzner J, Blich M, Suleiman M, Zeidan Shwiri T, Marai I, Boulos M, Amikam S, Lilli A, Magnacca M, Svetlich C, D'addario S, Baratto MT, Ghidini Ottonelli A, Savino K, Casolo G, Wolber T, On C, Binggeli C, Holzmeister J, Brunckhorst C, Duru F. Poster Session 2: Results (pacing), indications (pacing). Europace 2009. [DOI: 10.1093/europace/euq204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Cunha E, Villalobos E, Nassar A, Lara M, Peres N, Palazzo J, Silva A, Stefano ED, Pino F. PREVALÊNCIA DE ANTICORPOS CONTRA AGENTES VIRAIS EM EQUÍDEOS NO SUL DO ESTADO DE SÃO PAULO. ARQUIVOS DO INSTITUTO BIOLÓGICO 2009. [DOI: 10.1590/1808-1657v76p1652009] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
RESUMO Foram analisados soros de 163 equídeos (143 equinos e 20 muares) provenientes de 16 municípios do sul do Estado de São Paulo, parte no Vale do Ribeira e parte no litoral. Utilizouse uma amostra probabilística estratificada em dois estágios, sendo a unidade amostral de primeiro estágio constituída pela unidade de produção agropecuária (UPA) e a de segundo estágio pelo animal dentro da UPA sorteada. Os soros foram coletados no período de outubro de 2004 a junho de 2005. Foram estimadas as prevalências de anticorpos contra os vírus das encefalites equinas do tipo leste (EEE), oeste (WEE) e venezuelana (VEE), herpesvírus equino (HVE), arterite viral dos equinos (AVE), influenza equina 1 e 2 (IE-1 e 2) e estomatite vesicular Indiana 2 – Cocal (COCV) e Indiana 3 – Alagoas (VSAV). Foram utilizadas as técnicas de inibição da hemoaglutinação para a detecção de anticorpos contra os vírus IE-1 e 2 e de soroneutralização para os demais vírus estudados. Dos animais testados, 26% apresentaram anticorpos contra o HVE, 21% para COCV, 5% para VSAV, 16% para EEE, 2,26% para VEE, 11% para influenza Equi/2 e 2,7% para influenza Equi/1. Não se encontraram animais reagentes para WEE e AVE. A soroprevalência obtida sugere a circulação do HVE, dos vírus da IE Equi-1(H7N7) e Equi-2 (H3N8), dos vírus EEE e VEE e dos vírus da estomatite vesicular Indiana 2 – Cocal (COCV) e Indiana 3 – Alagoas (VSAV) no rebanho de equídeos do sul do Estado de São Paulo.
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Perings C, Bauer W, Bondke H, Mewis C, Boecker D, Schwab JO, Trappe HJ, Mortensen PT, Andersen K, Nielsen JC, Nyboe I, Vogtmann T, Marek A, Schaarschmidt J, Kespohl S, Baumann G, Osca Asensi J, Sancho Tello MJ, Navarro J, Cano O, Raso R, Castro JE, Olague J, Salvador A, Zima E, Barany T, Kiraly A, Muk B, Molnar L, Szilagyi SZ, Geller L, Merkely B, Rocha Costa S, Almeida S, Gomes R, Silva J, Cavaco D, Sanfins V, Adragao P, Silva A. Abstracts: Home monitoring - Long term follow up. Europace 2009. [DOI: 10.1093/europace/euq245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Lokaj P, Krivan L, Kozak M, Sepsi M, Trcka P, Vlasinova J, Spinar J, Ferraro A, Rordorf R, Belvito C, Vicentini A, Savastano S, Petracci B, Sanzo A, Landolina M, Greenberg S, Goldman D, Deering T, Epstein A, Burke J, Dalal Y, Hurley J, Robinson B, Melton C, Patel M, Saporito J, Charlton S, Sims JJ, Van Casteren L, Heidbuchel H, Rossenbacker T, Gopal R, Vanhaecke J, Van Cleemput J, Droogne W, Willems R, Rocha Costa S, Silva J, Almeida S, Reis Santos K, Cavaco D, Morgado F, Adragao P, Silva A, Kanoupakis EM, Mavrakis HE, Kallergis EM, Koutalas EP, Saloustros IG, Milathianaki M, Manios EG, Vardas PE, Richey M, Malkin RA, Masson SC, Ransbury T, Urtz M, Ideker RE, Sanders WE, Greenberg S, Deering T, Goldman D, Epstein A, Burke J, Dalal Y, Brembilla-Perrot B, Azman B, Terrier De La Chaise A, Blangy H, Sadoul N, Claudon O, Louis P, Selton O, Braunschweig F, Ekman M, Maschio M, Linde C, Cowie MR, Pignalberi C, Lavalle C, Morichelli L, Porfili A, Quarta L, Sassi A, Ricci RP, Santini M, Deering TF, Goldman DS, Greenberg S, Epstein A, Gupta M, Gall SA, Kelland NF, Tynan M, Lord SW, Plummer CJ, Mccomb JM, Treguer F, Mabo P, Tassin A, Prunier F, Furber A, Daubert JC, Leclercq C, Dupuis JM, Bertini M, Ng ACT, Borleffs CJW, Delgado V, Boriani G, Leung DY, Schalij MJ, Bax JJ, Cabrera Bueno F, Alzueta J, Pena-Hernandez J, Molina-Mora MJ, Fernandez-Pastor J, Barrera A, De Teresa E, Stockburger M, Krebs A, Rauchhaus M, Celebi O, Nitardy A, Habedank D, Knaus T, Dietz R, Varma N, Epstein A, Irimpen A, Gibson L, Love C, Hindricks G, Elsner C, Geller J, Kautzner J, Moertel HB, Piorkowski C, Schumacher B, Taborsky M, Vest R, Blanco R, Valadri R, Shukrullah I, London B, Dudley S, Zafari M, Bloom H, Caliskan K, Theuns DF, Hoedemakers YM, Ten Cate FJ, Jordaens L, Szili Torok T, Biscione F, Di Grazia A, Pandolfo L, Porzio A, Deneke T, Lemke B, Horlitz M, Reinecke J, Lawo T, Muegge A, Grewe P, Borleffs CJW, Van Rees JB, Van Welsenes GH, Van Bommel RJ, Van Der Velde ET, Van Erven L, Bax JJ, Schalij MJ, Bhavnani S, Coleman C, Guertin D, White CM, Yarlagadda R, Clyne C, Kluger J. Poster Session 2: Primary prevention. Europace 2009. [DOI: 10.1093/europace/euq203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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285
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Delgado Silva J, Gomes R, Almeida S, Reis Santos K, Cavaco D, Bello Morgado F, Adragao P, Silva A, Kwasniewski W, Filipecki A, Orszulak W, Urbanczyk D, Szydlo K, Trusz-Gluza M, Delgado Silva J, Almeida S, Rocha S, Reis Santos K, Cavaco D, Bello Morgado F, Adragao P, Silva A, Aldhoon B, Kettner J, Cihlova M, Kohoutek J, Wiendl M, Melenovsky V, Kautzner J. Poster Session 2: Secondary prevention. Europace 2009. [DOI: 10.1093/europace/euq207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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286
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Vidal B, Tolosana JM, Sitges M, Delgado V, Silva E, Castel MA, Brugada J, Mont L, Khan FZ, Read PA, Salahshouri P, Bayrakdar MA, Matousova D, Virdee MS, Fynn SP, Dutka DP, Clemens M, Nagy-Balo E, Herczku C, Kun C, Toth Z, Edes I, Csanadi Z, Theilade J, Holmegard HN, Dunoe M, Olesen MS, Haunsoe S, Benn M, Svendsen JH, Digby G, Daubney ME, Baggs J, Campbell D, Simpson CS, Redfearn DP, Abdollah H, Baranchuk A, Seifert M, Schau T, Moeller V, Meyhoefer J, Fleck E, Butter C, Raffa S, Grosse A, Brunelli M, Regoli F, Schreiber M, Wauters K, Geller JC, Carmo P, Cavaco D, Adragao P, Parreira L, Santos K, Morgado F, Marcelino S, Silva A, Muto C, Celentano E, Canciello M, Carreras G, Calvanese R, Ascione L, Accadia M, Tuccillo B, Froehlig G, Sperzel J, Vogt J, Anselme F, Ducloux P, Ziglio F, Krumel F, Derval N, Steendijk P, Bordachar P, Deplagne A, Ritter P, Clementy J, Haissaguerre M, Jais P, Ismer B, Koerber T, Heinke M, Voss W, Trautwein U, Nienaber CA, Chang PC, Lin FC, Wang CC, Sargento L, Carpinteiro L, Marques P, Veiga A, Cortez-Dias N, Sousa J, Castellant P, Orhan E, Fatemi M, Etienne Y, Valls-Bertault V, Blanc JJ, Buck S, Maass AH, Schoonderwoerd BA, Van Veldhuisen DJ, Van Gelder IC, Vatasescu RG, Berruezo A, Mont L, Tamborero D, Tolosana JM, Brugada J, Tolosana JM, Mont L, Sitges M, Berruezo A, Delgado V, Tamborero D, Morales M, Brugada J, Teixeira R, Antonio N, Coelho L, Lourenco C, Ventura M, Cristovao J, Elvas L, Providencia LA, Matsushita K, Ishikawa T, Sumita S, Yamakawa Y, Matsumoto K, Hosoda J, Miki Y, Umemura S. Poster Session 4: CRT I. Europace 2009. [DOI: 10.1093/europace/euq240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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287
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Andersen ML, Ribeiro DA, Bergamaschi CT, Alvarenga TA, Silva A, Zager A, Campos RR, Tufik S. Distinct effects of acute and chronic sleep loss on DNA damage in rats. Prog Neuropsychopharmacol Biol Psychiatry 2009; 33:562-7. [PMID: 19258023 DOI: 10.1016/j.pnpbp.2009.02.014] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/12/2009] [Revised: 02/20/2009] [Accepted: 02/20/2009] [Indexed: 01/20/2023]
Abstract
The aim of this investigation was to evaluate genetic damage induced in male rats by experimental sleep loss for short-term (24 and 96 h) and long-term (21 days) intervals, as well as their respective recovery periods in peripheral blood, brain, liver and heart tissue by the single cell gel (comet) assay. Rats were paradoxically deprived of sleep (PSD) by the platform technique for 24 or 96 h, or chronically sleep-restricted (SR) for 21 days. We also sought to verify the time course of their recovery after 24 h of rebound sleep. The results showed DNA damage in blood cells of rats submitted to PSD for 96 h. Brain tissue showed extensive genotoxic damage in PSD rats (both 24 and 96 h), though the effect was more pronounced in the 96 h group. Rats allowed to recover from the PSD-96 h and SR-21 days treatments showed DNA damage as compared to negative controls. Liver and heart did not display any genotoxicity activity. Corticosterone concentrations were increased after PSD (24 and 96 h) relative to control rats, whereas these levels were unaffected in the SR group. Collectively, these findings reveal that sleep loss was able to induce genetic damage in blood and brain cells, especially following acute exposure. Since DNA damage is an important step in events leading to genomic instability, this study represents a relevant contribution to the understanding of the potential health risks associated with sleep deprivation.
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Chiarelli-Neto O, Yotoko K, Vidigal P, Silva F, Castro L, Fietto J, Silva A, Almeida M. Classification and putative origins of Brazilian porcine circovirus 2 inferred through phylogenetic and phylogeographical approaches. Virus Res 2009; 140:57-63. [DOI: 10.1016/j.virusres.2008.11.002] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2008] [Revised: 11/03/2008] [Accepted: 11/03/2008] [Indexed: 11/29/2022]
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Teeuw WJ, Coelho L, Silva A, van der Palen CJNM, Lessmann FGJM, van der Velden U, Loos BG. Validation of a dental image analyzer tool to measure alveolar bone loss in periodontitis patients. J Periodontal Res 2009; 44:94-102. [DOI: 10.1111/j.1600-0765.2008.01111.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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290
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Murillo-Ortiz B, Castillo-Valenzuela R, Martínez-Garza S, Moreno-Perez A, Silva A, Ruiz-García E, Astudillo-de la Vega H. Association of the polymorphisms CYP19 (TTTA)n in treatment response to hormone therapy based in aromatase inhibitors in breast cancer patients. Cancer Res 2009. [DOI: 10.1158/0008-5472.sabcs-3033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Abstract #3033
Background 
 Case-control studies have reported inconsistent results concerning breast cancer risk and polymorphisms in genes that control endogenous estrogen biosynthesis. We report findings from the first study in Mexican women examining associations between female with breast cancer and polymorphisms CYP19 (TTTA repeated polymorphism).
 Methods 
 We conducted a study among 180 healthy women and 70 women with breast cancer underwent hormone therapy with aromatase inhibitor. DNA and questionnaire data was obtained. Tandem repeated (TTTA)n polymorphism in CYP19 gene was determined by PCR followed by electrophoresis on denaturalizing acrilamide gel stained with silver nitrate. Differences were visualized with Gel-Doc BioRad. Estrone, estradiol and FSH levels were measured by RIA and IRMA. We used likelihood-based statistical methods to examine allelic associations.
 Results:
 250 women (age 55 ± 12 years) were included. BMI was 30 ± 7.1 Kg/m2. We found a distribution of different CYP19 allele frequencies. In healthy women the allele frequencies with 6 (32.7 %) and 7 (21.6 %) tandem repetitions were the most frequent, in women with breast cancer the alleles with 6(29%) and 10(26%) tandem repeated were the most frequent. A relationship between hormonal levels and number of (TTTA) repeated was not found. Anastrozol reduced significantly estrona and estradiol. Surpriseling we found in a patients with 10 or more (TTTA)n repeated an association with a mayor tumoral activity (p=0.04).
 Conclusion 
 This study indicates that status of CYP19 >10 TTTA repeated might be related to increased breast cancer risk and with the clinical response (aromatase inhibitor). Because of this is the first study to report an association between CYP19 >10 TTTA repeated and treatment hormonal response in breast cancer.
Citation Information: Cancer Res 2009;69(2 Suppl):Abstract nr 3033.
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Macedo S, Bello Y, Silva A, Siqueira C, Siqueira S, Brito L. Effects of simvastatin in prevention of vasospasm in nontraumatic subarachnoid hemorrhage: preliminary data. Crit Care 2009. [PMCID: PMC4083989 DOI: 10.1186/cc7267] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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292
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Martins A, Domingues I, Pedrosa R, Sousa V, Marques J, Silva A, Curral R, Torres AR. Compared Diagnostic Stability Between Mood Disorders and Psychotic Disorders in a Day-care Psychiatric Unit. Eur Psychiatry 2009. [DOI: 10.1016/s0924-9338(09)70954-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Psychiatric diagnosis depends more from the experts' opinion than from the biological basis of the diseases. Therefore the lack of diagnostic stability among the psychiatric practice is not a rare situation. This usually results in increased costs in treatment and sometimes in worst outcome for the patient who is misdiagnosed at the onset of the illness.The authors evaluated diagnostic stability among a population of 302 patients receiving psychiatric treatment in a day-care unit of a central hospital between January/2005 and June/2008. The study compared diagnostic stability of 146 patients diagnosed as mood disorder with diagnostic stability of 83 patients diagnosed as psychotic disorder.There was high diagnostic stability either for mood disorders as for psychotic disorders. This fact provides the chance of planning more accurate treatment strategies and better outcome.
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Bonotto D, Bueno T, Tessari B, Silva A. The natural radioactivity in water by gross alpha and beta measurements. RADIAT MEAS 2009. [DOI: 10.1016/j.radmeas.2008.10.015] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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294
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Silveira C, Norton A, Martins A, Domingues I, Moreira R, Timóteo S, Silva A. Diagnostic Stability of Psychotic Disorders: A Retrospective Study. Eur Psychiatry 2009. [DOI: 10.1016/s0924-9338(09)71412-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Background:An essential condition to validate a diagnosis is its stability over time. Since there are no biological markers for psychiatric disorders, the diagnosis relies on clinical expertise, with several consequences in treatment planning, disease burden and disability, affecting outcome and public health.Objectives:The aims of this study were:1.the assessment of long term stability of the diagnosis of psychotic disorders,2.its implications in patient treatment, and3.the evaluation of eventual predictors of diagnosis stability.Methods:This was a retrospective study carried out in the Department of Psychiatry of a large University Hospital (Hospital S. João, Porto, Portugal). Patients enrolled were admitted in the inpatient unit from 2000 to 2003 (n=190, 12.41% of 1531 patients admitted), experienced a first psychotic episode, and fulfilled criteria for one of the following diagnosis: schizophrenia, schizoaffective disorder, bipolar disorder, drug induced psychosis, acute and transient psychotic disorders, schizophreniform disorder and psychosis NOS (ICD-10 classification). the diagnoses were extracted from clinical records, and reassessed five years after the initial diagnosis. the analysis focuses on diagnostic agreement over time; clinical and demographic variables were also collected and putative associations with diagnostic shift considered.Results:The study is now under statistic evaluation.
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Silva A, Andersen M, De Mello M, Bittencourt L, Peruzzo D, Tufik S. Gender and age differences in polysomnography findings and sleep complaints of patients referred to a sleep laboratory. Braz J Med Biol Res 2008; 41:1067-75. [DOI: 10.1590/s0100-879x2008001200005] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2007] [Accepted: 11/28/2008] [Indexed: 11/21/2022] Open
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Patra SK, Rizzi F, Silva A, Rugina DO, Bettuzzi S. Molecular targets of (-)-epigallocatechin-3-gallate (EGCG): specificity and interaction with membrane lipid rafts. JOURNAL OF PHYSIOLOGY AND PHARMACOLOGY : AN OFFICIAL JOURNAL OF THE POLISH PHYSIOLOGICAL SOCIETY 2008; 59 Suppl 9:217-235. [PMID: 19261982] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Received: 11/05/2008] [Accepted: 12/20/2008] [Indexed: 05/27/2023]
Abstract
Proteomic studies on anticancer activity of Green Tea Catechins (specifically EGCG) are suggesting a large set of protein targets that may directly interact with EGCG and alter the physiology of diseased cells, including cancer. Of notice, benign cells are usually left untouched. Lipid rafts have been recently recognized as signal processing hubs and suggested to be involved in drug uptake by means of endocytosis. These findings are suggesting new insights on the molecular mechanisms of anticancer drugs action. In the membrane, EGCG is hijacked by the laminin receptor (LamR), a lipid raft protein. Similar to aplidin and edelfosin, EGCG alters membrane domains composition also preventing EGF binding to EGFR, imerization of EGFR and relocation of phosphorylated EGFR to lipid rafts. In vitro studies have recently shown that EGCG also binds both DNA and RNA in GpC-rich regions. This event may importantly affect genes function. Moreover, EGCG was shown to inhibit telomerase, topoisomerase II and DNA methyltransferase 1 (DNMT1), thus ultimately affecting chromatin maintenance and remodeling. But another important alternative pathway besides interaction with specific proteins may play an important role in EGCG action: direct targeting of bioactive membrane platforms, lipid rafts. Structural alteration of the platforms deeply impact (and often inactivates) important pathways involving MAP kinases. The key issue is that, important and specific differences in lipid rafts composition have been found in transformed versus benign cells and apoptotic versus non-apoptotic cells. We suggest here that the anticancer activity of Green Tea Catechins against different kind of cancers may find an explanation in direct targeting of lipid rafts by EGCG.
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Silva A. [SY2.1]: Molecular and cellular cognition: unraveling mechanisms and finding cures for learning disabilities. Int J Dev Neurosci 2008. [DOI: 10.1016/j.ijdevneu.2008.09.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Silva A, Andersen ML, Tufik S. Sleep pattern in an experimental model of osteoarthritis. Pain 2008; 140:446-455. [DOI: 10.1016/j.pain.2008.09.025] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2008] [Revised: 09/16/2008] [Accepted: 09/19/2008] [Indexed: 10/21/2022]
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Vernal R, Leon R, Herrera D, Garcia-Sanz JA, Silva A, Sanz M. Variability in the response of human dendritic cells stimulated withPorphyromonas gingivalisorAggregatibacter actinomycetemcomitans. J Periodontal Res 2008; 43:689-97. [DOI: 10.1111/j.1600-0765.2007.01073.x] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Armesilla-Diaz A, Bragado P, Del Valle I, Cuevas E, Lazaro I, Martin C, Cigudosa JC, Silva A. p53 regulates the self-renewal and differentiation of neural precursors. Neuroscience 2008; 158:1378-89. [PMID: 19038313 DOI: 10.1016/j.neuroscience.2008.10.052] [Citation(s) in RCA: 76] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2008] [Revised: 10/22/2008] [Accepted: 10/23/2008] [Indexed: 12/25/2022]
Abstract
During embryo neurogenesis, neurons that originate from stem cells located in the forebrain subventricular zone (SVZ) continuously migrate to the olfactory bulb (OB). However, other authors describe the occurrence of resident stem cells in the OB. In the present work we report that the absence of tumor suppressor protein p53 increases the number of neurosphere-forming cells and the proliferation of stem cells derived from 13.5-day embryo OB. Interestingly, differentiation of p53 knockout-derived neurospheres was biased toward neuronal precursors, suggesting a role for p53 in the differentiation process. Moreover, we demonstrate the relevance of p53 in maintaining chromosomal stability in response to genotoxic insult. Finally, our data show that neurosphere stem cells are highly resistant to long-term epidermal growth factor (EGF) and basic fibroblast growth factor (bFGF) deprivation in a p53-independent fashion, and they preserve their differentiation potential. Thus, these data demonstrate that p53 controls the proliferation, chromosomal stability and differentiation pattern of embryonic mouse olfactory bulb stem cells.
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