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Activity of the antimicrobial peptide P34 against bovine alphaherpesvirus type 1 Ciência Rural
Castro,Clarissa Caetano de; Silva,Débora Scopel e; Costa,Géssica Aracéli; Fischer,Geferson; Vargas,Gilberto D’Avila; Brandelli,Adriano; Lima,Marcelo de; Motta,Amanda de Souza da; Hübner,Silvia de Oliveira.
ABSTRACT: Previous studies have demonstrated the antimicrobial activity of the peptide P34. In this study, the antiviral potential of P34 and the in vitro mechanism of action were investigated against bovine alphaherpesvirus type 1 (BoHV1). P34 exhibited low toxicity, a high selectivity index (22.9) and a percentage of inhibition of up to 100% in MDBK cells. Results from antiviral assays indicated that P34 did not interact with cell receptors, but it was able to inhibit the viral penetration immediately after pre-adsorption. In addition, BoHV1 growth curve in MDBK cells in the presence of P34 revealed a significant reduction in virus titer only 8h post-infection, also suggesting an important role at late stages of the replicative cycle. Virucidal effect...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Antiviral; Herpesvirus; Peptide.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000600451
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Antiviral activity of a Bacillus sp: P34 peptide against pathogenic viruses of domestic animals BJM
Silva,Débora Scopel e; Castro,Clarissa Caetano de; Silva,Fábio da Silva e; Sant'anna,Voltaire; Vargas,Gilberto D'Avila; Lima,Marcelo de; Fischer,Geferson; Brandelli,Adriano; Motta,Amanda de Souza da; Hübner,Silvia de Oliveira.
P34 is an antimicrobial peptide produced by a Bacillus sp. strain isolated from the intestinal contents of a fish in the Brazilian Amazon basin with reported antibacterial activity. The aim of this work was to evaluate the peptide P34 for its in vitro antiviral properties against canine adenovirus type 2 (CAV-2), canine coronavirus (CCoV), canine distemper virus (CDV), canine parvovirus type 2 (CPV-2), equine arteritis virus (EAV), equine influenza virus (EIV), feline calicivirus (FCV) and feline herpesvirus type 1 (FHV-1). The results showed that the peptide P34 exhibited antiviral activity against EAV and FHV-1. The peptide P34 inhibited the replication of EAV by 99.9% and FHV-1 by 94.4%. Virucidal activity was detected only against EAV. When P34 and EAV...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Antimicrobial peptides; Antiviral activity; Herpesvirus; Equine viral arteritis.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822014000300043
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Complete genome sequence of acute viral necrosis virus associated with massive mortality outbreaks in the Chinese scallop, Chlamys farreri ArchiMer
Ren, Weicheng; Chen, Haixia; Renault, Tristan; Cai, Yuyong; Bai, Changming; Wang, Chongming; Huang, Jie.
Acute viral necrosis virus (AVNV) is the causative agent of a serious disease resulting in high mortality in cultured Chinese scallops, Chlamys farreri. We have sequenced and analyzed the complete genome of AVNV. The AVNV genome is a linear, double-stranded DNA molecule of 210,993 bp with a nucleotide composition of 38.5% G + C. A total of 123 open reading frames were predicted to encode functional proteins, ranging from 41 to 1,878 amino acid residues. The DNA sequence of AVNV is 97% identical to that of ostreid herpesvirus 1 (OsHV-1), and the amino acid sequences of the encoded proteins of these two viruses are 94-100% identical. The genomic organization of AVNV is similar to that of OsHV-1, and consists of two unique regions (170.4 kb and 3.4 kb,...
Tipo: Text Palavras-chave: Acute viral necrosis virus; Herpesvirus; OsHV-1; Genome; Scallop; Chlamys farreri; AVNV.
Ano: 2013 URL: http://archimer.ifremer.fr/doc/00135/24620/22650.pdf
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Contribution à l'étude de mollusques marins : Iridovirus-like et Herpèsvirus-like. Description, caractérisation biochimique, cycle de multiplication viral, diagnostic et étude épidémiologique ArchiMer
Renault, Tristan; Le Deuff, Rose-marie; Cochennec, Nathalie; Chollet, Bruno; Maffart, Patricia.
Among the marine molluscs, Pacifie oyster, Crassostrea gigas, is actually the most reared specie in the world. Noticely in France, where it was imported between 1960 and 1970, and replaced by Portuguese oyster, Crassostrea angulata, which specie was decimated during this period because of iridoviruses. Uncontroled introductions of new species may however be hazardous. Indeed, they might be responsible for the appearance and the dissemination of new diseases of bivalve molluscs in importing country. In addition to these observations, the quasi monobreeding of Pacific oyster in France enhances the necessity to develop research concerning the diagnosis of pathologies affecting this specie, namely the diagnosis of viral diseases. Several families of viruses...
Tipo: Text Palavras-chave: Mollusques; Crassostrea gigas; Pathologie; Iridovirus; Herpèsvirus; Diagnostic; Molluscs; Crassostrea gigas; Pathology; Iridovirus; Herpesvirus; Diagnosis.
Ano: 1993 URL: http://archimer.ifremer.fr/doc/00041/15230/12548.pdf
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Contribution à l'étude de virus de mollusques marins apparentés aux Iridoviridae et aux Herpesviridae ArchiMer
Le Deuff, Rose-marie.
Among the marine molluscs, Pacific oyster, Crassostrea gigas, is actually the most reared species in the world. Noticeably in France, where it was imported between 1960 and 1970, and replaced Portuguese oyster, Crassostrea angulata. Intensification of breeding and the associated introductions of new species may be hazardous. Indeed, they might be responsible for the appearance and the dissemination of new diseases in bivalve molluscs. In addition to these observations, the quasi monobreeding of C. gigas in France enhances the necessity to develop research concerning the diagnosis of pathologies affecting this species, namely the diagnosis of viral diseases. Several families of viruses have been described within marine bivalves molluscs. The purpose of this...
Tipo: Text Palavras-chave: Mollusques bivalves; Crassostrea gigas; Huître japonaise; Pathologie; Iridovirus; Herpèsvirus; Diagnostic; Bivalve molluscs; Crassostrea gigas; Pacific oyster; Pathology; Iridovirus; Herpesvirus; Diagnosis.
Ano: 1995 URL: http://archimer.ifremer.fr/doc/00107/21792/19367.pdf
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Detection of ostreid herpesvirus 1 DNA by PCR in bivalve molluscs: A critical review ArchiMer
Batista, Frederico; Arzul, Isabelle; Pepin, Jean-francois; Ruano, Francisco; Friedman, Carolyn S.; Boudry, Pierre; Renault, Tristan.
Herpes-like viral infections have been reported in different bivalve mollusc species throughout the world. High mortalities among hatchery-reared larvae and juveniles of different bivalve species have been associated often with such infections. The diagnosis of herpes-like viruses in bivalve molluscs has been performed traditionally by light and transmission electron microscopy. The genome sequencing of one of these viruses, oyster herpesvirus 1 (OsHV-1), allowed the development of DNA-based diagnostic techniques. The polymerase chain reaction (PCR) has been used for the detection of OsHV-1 DNA in bivalve molluscs at different development stages. In addition, the PCR used for detection of OsHV-1 has also allowed the amplification of DNA from an OsHV-1...
Tipo: Text Palavras-chave: Oyster; Bivalve molluscs; PCR; Detection; OsHV 1; Herpesvirus.
Ano: 2007 URL: http://archimer.ifremer.fr/doc/2007/publication-2322.pdf
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Detection of ostreid herpesvirus-1 (OsHV-1) by PCR using a rapid and simple method of DNA extraction from oyster larvae ArchiMer
Batista, Frederico; Taris, Nicolas; Boudry, Pierre; Renault, Tristan.
A DNA extraction procedure was developed for the detection of ostreid herpesvirus-1 (OsHV-1) using the polymerase chain reaction (PCR) in oyster larvae. The DNA extraction procedure developed was tested on 8 larval samples. Abnormal nuclei with characteristic features associated with OsHV-1 infections were only observed in samples in which the viral DNA was detected by PCR. A previously described competitive PCR method was applied to detect inhibition during PCR reactions. The results show that the method can be used on small amounts of oyster larvae (3 mg) for the detection of OsHV-1 DNA by PCR.
Tipo: Text Palavras-chave: DNA extraction; Detection; Larvae; Oyster; OsHV 1; Herpesvirus.
Ano: 2005 URL: http://archimer.ifremer.fr/doc/2005/publication-2916.pdf
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Detection of oyster herpesvirus DNA and proteins in asymptomatic Crassostrea gigas adults ArchiMer
Arzul, Isabelle; Renault, Tristan; Thebault, Anne; Gerard, Andre.
Since 1972, several herpes-like virus infections have been reported among different bivalve species around the world. Most of these reports involved larvae or juveniles presenting high mortalities. Two case reports of herpes-like viruses concerned adult oysters, Crassostrea virginica in USA and Ostrea angasi in Australia. Molecular techniques including PCR and in situ hybridization (ISH) have been recently developed to detect the oyster herpesvirus genome. In the present study, 30 Pacific oyster, Crassostrea gigas, adults have been analyzed using three different techniques: PCR, ISH and immunochemistry, in order to detect herpesviruses in asymptomatic individuals. PCR and ISH allowed detection of oyster herpesvirus DNA in 93.3 and 86.6%, respectively, of...
Tipo: Text Palavras-chave: Protein; DNA; Healthy carrier; Adult oyster; Crassostrea gigas; Herpesvirus.
Ano: 2002 URL: http://archimer.ifremer.fr/doc/2002/publication-697.pdf
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Distribuição de anticorpos para herpesvírus bovino 1 em rebanhos bovinos Arq. Bras. Med. Vet. Zootec.
Melo,C.B.; Lobato,Z.I.P.; Camargos,M.F.; Souza,G.N.; Martins,N.R.S.; Leite,R.C..
A distribuição de anticorpos neutralizantes para o herpesvirus bovino 1 (HVB 1) foi estudada em quatro faixas etárias de bovinos, em 21 rebanhos de leite e de corte. Os resultados da sorologia foram analisados e relacionados com as respostas de questionários aplicados aos responsáveis pelos rebanhos. As taxas de freqüência de anticorpos neutralizantes para o HVB 1 foram comparadas segundo a aptidão e a faixa etária. Fatores como tipo de manejo e idade dos animais influenciaram na distribuição de anticorpos para o HVB 1.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Bovino; Herpesvirus; HVB 1; RIB; Anticorpo; Rinotraqueíte.
Ano: 2002 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352002000600003
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Effects of temperature on herpes-like virus detection among hatchery-reared larval Pacific oyster Crassostrea gigas ArchiMer
Le Deuff, Rose-marie; Renault, Tristan; Gerard, Andre.
This paper describes effects of temperature on herpes-like virus detection in Pacific oyster Crassostrea gigas larvae held at different temperatures. Intranuclear, intracytoplasmic and extracellular viral particles were observed in velum and mantle connective tissues of oyster larvae reared at 25-26°C. In larvae held at 22-23OC, although nuclear lesions were observed, the presence of viral particles was not detected. Results were obtained for oyster larvae with 4 different parental origins. Herpesvirus infection was found in 3 of the 4 groups of oyster larvae held In the same conditions at the higher temperature.
Tipo: Text Palavras-chave: Temperature; Mortality; Larval culture; Crassotrea gigas; Pacific oyster; Herpesvirus.
Ano: 1996 URL: http://archimer.ifremer.fr/doc/1996/publication-2900.pdf
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Emergence de maladies chez les organismes d'intérêt aquacole : quelques scénarios illustrés d'exemples ArchiMer
Saulnier, Denis; Reynaud, Yann; Arzul, Isabelle; Miossec, Laurence; Le Roux, Frédérique; Goarant, Cyrille.
According to the world organisation for animal health (OIE) an emerging disease is defined as a recently admitted serious illness, whose aetiology can, or not, have already been established, and which is likely to be propagated within a population or between populations, for example at the time of international exchanges of aquatic animals and/or products of aquatic animals. Even though the emerging diseases that affect human health have been much studied, those which affect marine organisms and species of aquaculture interest in particular are poorly documented. By restricting emergence to only infectious diseases, we aim at presenting in a non-exhaustive way some scenarios of the emergence of the diseases of aquacultured species by illustrating them with...
Tipo: Text Palavras-chave: Cyprinus carpio; Ostrea edulis; Bonamia ostreae; Peneides; Vibrio nigripulchritudo; Herpesvirus; Agent pathogène.
Ano: 2007 URL: http://archimer.ifremer.fr/doc/2007/publication-2980.pdf
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Establishing causal link between an infectious agent and mortalities in marine molluscan aquaculture on the example of Bonamia ostreae and Herpèsvirosis in oysters : proposal of a causal grid analysis ArchiMer
Thebault, Anne; Cochennec, Nathalie; Arzul, Isabelle; Renault, Tristan.
In marine molluscan aqauculture, infectious agents are regularly cited in literature associated with mass mortalities as emergin diseases, but the causal link is often based on very few argumeents. 24 ways to demonstrate causal links from epidemiolgical, ecological and marine pathology literature feasible for marine molluscs are given. Those criteria were applied to the ewample of Bonamia ostreae for Ostrea edulis and Herpesvirus for spats and larvae of Crassostrea gigas. Three principles could be applied in marine field for choosing criteria wich should be taken in priority : the demonstration must be given at three levels of organization, organ individual, population, the demonstration must keeps maximum epidemiological criterias, and then mixes...
Tipo: Text Palavras-chave: Herpesvirus; Bonamia ostrea; Crassostrea gigas; Ostrea edulis; Marine pathology; Ecology; Epidemiology; Infectious agents; Molluscan aquaculture.
Ano: 2003 URL: http://archimer.ifremer.fr/doc/2003/acte-3341.pdf
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Evidence for interspecies transmission of oyster herpesvirus in marine bivalves ArchiMer
Arzul, Isabelle; Renault, Tristan; Lipart, Cécile; Davison, Andrew.
Since 1991, numerous herpesvirus infections associated with high mortality have been reported around the world in various marine bivalve species. In order to determine whether these infections are due to ostreid herpesvirus-l (OsHV1), a previously characterized pathogen of the Japanese oyster (Crassostrea gigas), PCR analysis was carried out on 30 samples of larvae collected from four bivalve species (C. gigas, Ostrea edulis, Ruditapes decussatus and Ruditapes philippinarum), most exhibiting mortality prior to collection. All samples were shown to be infected by OsHV1. Viral genomes in three samples of C. gigas and three of R. philippinarum that originated from the same hatchery were unusual in bearing a deletion of at least 2.8 kbp in an inverted repeat...
Tipo: Text Palavras-chave: Bivalve; Crassostrea gigas; Herpesvirus; Japanese oyster; Transmission.
Ano: 2001 URL: http://archimer.ifremer.fr/doc/2001/publication-705.pdf
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Felis catus gammaherpesvirus 1 (FcaGHV1) and coinfections with feline viral pathogens in domestic cats in Brazil Ciência Rural
Kurissio,Jacqueline Kazue; Rodrigues,Marianna Vaz; Taniwaki,Sueli Akemi; Zanutto,Marcelo de Souza; Filoni,Claudia; Galdino,Maicon Vinícius; Araújo Júnior,João Pessoa.
ABSTRACT: Felis catus gammaherpesvirus 1 (FcaGHV1) may causes an asymptomatic infection that result in an efficient transmission and subsequently dissemination of the virus in feline population. This study used molecular detection by qPCR (quantitative PCR) based on DNA polymerase gene fragment amplification to evaluate the occurrence of FcaGHV1 and its correlation with other feline viral pathogens, such as Carnivore protoparvovirus 1 (CPPV-1), Felid alphaherpesvirus 1 (FeHV-1), and feline retroviruses such as feline immunodeficiency virus (FIV) and feline leukemia virus (FeLV). Of the 182 blood samples evaluated 23.6% (43/182) were positives for FcaGHV1. Approximately 37.9% (33/87) of the samples that tested positive for retrovirus were also were positive...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Gammaherpesvirus; Herpesvirus; Feline pathogen; Infectious diseases; Diagnosis.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018000300451
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French scallops: A new host for ostreid herpesvirus-1 ArchiMer
Arzul, Isabelle; Nicolas, Jean-louis; Davison, Andrew J.; Renault, Tristan.
Sporadic high mortalities were reported among larval French scallops (Pecten maximus). Electron microscopy of moribund larvae revealed particles with the characteristics of a herpesvirus in association with cellular lesions. PCR and DNA sequencing showed that the virus is a variant of ostreid herpesvirus-1 that has already been described in clams and oysters. This is the first description of a herpesvirus infection of a scallop species. The virus was transmitted successfully from an extract of infected scallop larvae to uninfected scallop or oyster (Crassostrea, gigas) larvae, demonstrating that it is able to infect both species. Detection of viral DNA in asymptomatic adult scallops by in situ hybridisation indicates that the herpesvirus may have been...
Tipo: Text Palavras-chave: Bivalve; Host range; Transmission; Polymorphism; OsHV 1; Pecten maximus; Scallop; Herpesvirus.
Ano: 2001 URL: http://archimer.ifremer.fr/doc/2001/publication-739.pdf
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Infection à virus de type herpès chez les larves de coquilles Saint-Jacques ArchiMer
Arzul, Isabelle; Nicolas, Jean-louis; Renault, Tristan.
King scallop (Pecten maximus) larvae suffered massive mortality during the summer of 2000 at a hatchery located in Brittany. Samples were taken for various types of analyses.
Tipo: Text Palavras-chave: Pathologie; Pecten maximus; Coquilles St Jacques; Herpesvirus; Herpesviridae.
Ano: 2001 URL: http://archimer.ifremer.fr/doc/2001/acte-3267.pdf
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Infections à virus de type herpes chez les bivalves : large spectre d'hôte et détection au stade adulte ArchiMer
Arzul, Isabelle; Renault, Tristan.
In 1972, Farley reported the presence of herpes-type viral particles in adult American oysters (Crassostrea virginica) for the first time. Since then, this pathogen has been detected in various marine bivalve species, usually associated with massive mortality events. To date, herpes-type viruses have been detected in the following species: C gigas, Ostrea edulis, O. angasi, Tiostrea chilensis, Ruditapes decussatus, R. philippinarum and most recently, Pecten maximus.
Tipo: Text Palavras-chave: Pathogènes; Bivalves; Herpesvirus; Herpesviridae.
Ano: 2001 URL: http://archimer.ifremer.fr/doc/2001/acte-3266.pdf
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Inhibition of DNA virus: Herpes-1 (HSV-1) in cellular culture replication, through an antioxidant treatment extracted from rosemary spice BJPS
Mancini,Dalva Assunção Portari; Torres,Rosângela Pavan; Pinto,José Ricardo; Mancini-Filho,Jorge.
This work aimed to evaluate antiviral properties in antioxidants from spices. Phenolic compounds extracted from rosemary (Rosmarinus officinallis, L) by hot water, had their antioxidant activity determined by spectrophotometry using β carotene/linoleic acid system. The rosemary extract was evaluated by antiviral assay of Herpes Virus type-1 (HSV-1) replication in VERO cells, in the presence or absence of the spice. 10,000 TCID50/mL of the HSV-1 was kept for 3 h at 4º C, with 300 ppm of rosemary extract, and 100 ppm of butyl hydroxyl toluene (BHT). Then, these viruses were inoculated in VERO cells incubated at 37º C in CO2-5 %, for seven days. Daily, they were examined and the end point was based on 100% of CPE in virus control (without antioxidants). The...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Natural antioxidants; Virus replication; Phenolic compounds; Herpesvirus; Rosemary.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502009000100016
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LATENCIA DEL HERPESVIRUS BOVINO-1: EL PAPEL DE LOS TRANSCRITOS RELACIONADOS CON LATENCIA (RL) Acta biol.Colomb.
RUIZ,JULIÁN; JAIME,JAIRO; VERA,VÍCTOR.
El herpesvirus bovino-1 es un virus de distribución mundial causante de graves pérdidas económicas debidas principalmente a la disminución de la eficiencia y en los indicadores de salud y productividad de cualquier hato ganadero infectado. Luego de la infección inicial del tracto respiratorio de los animales, el virus establece un estado de latencia viral en las neuronas sensoriales del ganglio trigémino y en los centros germinales de las tonsilas faríngeas. Periódicamente, el virus es reactivado y excretado en secreciones a través de las cuales puede infectar a otros animales susceptibles. Durante dicho estado de latencia hay disminución dramática de la expresión de genes virales, llevando solo a la expresión de dos transcritos: El RNA codificado por el...
Tipo: Journal article Palavras-chave: Herpesvirus; Latencia; Transcritos; ORF.
Ano: 2008 URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2008000100001
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Meningoencefalite por Herpesvirus bovino 5 em Minas Gerais: relato de caso clínico Arq. Bras. Med. Vet. Zootec.
Aquino Neto,H.M.; Carvalho,A.U.; Facury Filho,E.J.; Ferreira,P.M.; Barbosa-Stancioli,E.F.; Lobato,Z.I.P.; Alvarenga,M.R.; Serrano,A.L.; Martins,R.A.; Afonso,D.A.F..
Relata-se um caso de meningoencefalite causada por Herpesvirus bovino 5 (BoHV-5) heritabilityem uma vaca com cinco anos de idade. O animal manifestou quadro clínico inicial de síndrome medular baixa, caracterizada por incoordenação dos membros pélvicos, sinais estes ainda não descritos para a enfermidade. Dentro de pouco tempo a doença evoluiu para síndrome cerebral, e o óbito ocorreu seis dias após o inicio dos sintomas. Na histopatologia, evidenciou-se meningoencefalite difusa, não supurada, e a confirmação do diagnóstico foi feita por reação em cadeia de polimerase e sequenciamento do segmento parcial da glicoproteína G do vírus. O trabalho confirma a presença do BoHV-5 em Minas Gerais, descreve características clínicas novas para a enfermidade e...
Tipo: Info:eu-repo/semantics/report Palavras-chave: Bovino; Herpesvirus; Meningoencefalite; Neuropatia.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352009000100001
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