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| Silva,D. F.; Assis,C. M.; Zamboni,I. M.; Barreto,L. C.; Kohara,V. S.; Vicentini-Moreira,A. P.. |
| The purpose of this work was to evaluate two serological assays: double immunodiffusion (DI) and immunoblotting (IB) in immunodiagnosis of paracoccidioidomycosis (PCM). We evaluated by IB assay 23 sera samples from patients with clinical confirmation of PCM, all of them with negative DI results against culture filtrate from Paracoccidioides brasiliensis isolate 113. For IB, as well as for comparative DI assay, we employed soluble components of the cell wall outer surface (SCCWOS) from P. brasiliensis isolate 113 cultivated at 36°C in Fava-Neto's agar medium for 5 and 10 days. Among the 20 sera samples analyzed by DI, 13 (65%) were negative and 7 (35%) were positive against SCCWOS obtained on the 5th and 10th days. By IB assay, 95.4% and 100% of sera... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Paracoccidioidomycosis; Immunodiffusion; Immunoblotting. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992008000200009 |
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| FERNANDES,Cláudia Gorgulho Nogueira; RODRIGUES-SILVA,Rosângela; MOURA,Saulo Teixeira de; OLIVEIRA,Regina M.F.. |
| O presente trabalho refere-se a pesquisa dos aspectos epidemiológicos da dirofilariose canina no perímetro urbano de Cuiabá, através de exame de sangue e sorologia. Examinou-se o sangue de 822 cães: em 11,81% das amostras, detectaram-se, por meio de "Immunoblot", anticorpos contra antígenos de Dirofilaria immitis adulto, enquanto em 0,41% foram encontradas, por meio do teste de Knott modificado, microfilárias de D. immitis. A prevalência da dirofilariose canina em Cuiabá, no período de junho a novembro de 1997, e com a metodologia aplicada, foi de 120,8 casos em cada 1.000 animais. O "Immunoblot" diagnosticou como positivas 11,27% das amostras que estavam consideradas negativas pelo teste de Knott modificado. Os autores analisaram estatisticamente... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Dirofilariose animal; Cães; Epidemiologia; Immunoblotting. |
| Ano: 2000 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-95962000000600009 |
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| Picka,Mariele Cristina Modolo; Meira,Domingos Alves; Carvalho,Thaís Batista de; Peresi,Eliana; Marcondes-Machado,Jussara. |
| Despite the existence of highly sensitive tests, inconclusive serological results are frequent in chronic chagasic infection. This study aimed to define a diagnostic conduct for 30 individuals with inconclusive serology (G3) for chagasic infection assisted at the Outpatient Unit for Infectious and Parasitic Diseases of the Botucatu School of Medicine. Twenty-one individuals with negative serology (G1) and 33 with positive serology (G2) were also studied. Serological methods ELISA, HAI, IFI and immunoblotting TESA-cruzi were used for G1, G2 and G3, and parasitological methods xenodiagnosis, hemoculture and PCR-LIT were used for G2 and G3 individuals. ELISA, HAI and IFI were performed in 5 different blood samples in G2 and G3. TESA-cruzi was carried out only... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Chronic chagasic infection; Trypanosoma cruzi; Inconclusive serology; Immunoblotting. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702007000200012 |
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| Campos,Karoline Rodrigues; Gonçalves,Maria Gisele; Costa,Nadia Aparecida; Caterino-de-Araujo,Adele. |
| ABSTRACT The present study evaluated several techniques currently available (commercial kits and in-house assays) for diagnosing human T lymphotropic viruses types 1 and 2 in two groups of patients enrolled at HIV/AIDS specialized care services in São Paulo: Group 1 (G1), n = 1608, 1237 male/371 female, median age 44.3 years old, majority using highly active antiretroviral therapy (HAART); G2, n = 1383, 930 male/453 female, median age of 35.6 years old, majority HAART naïve. Enzyme immunoassays [(EIA) Murex and Gold ELISA] were employed for human T lymphotropic viruses types 1 and 2 screening; Western blotting (WB), INNO-LIA (LIA), real-time PCR pol (qPCR), and nested-PCR-RFLP (tax) were used to confirm infection. Samples were considered human T... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: HTLV-1/2; HIV-1; Coinfection; Diagnosis; Immunoblotting; PCR; HAART. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702017000300297 |
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| Pilonetto,D.V.; Pereira,N.F.; Bitencourt,M.A.; Magdalena,N.I.R.; Vieira,E.R.; Veiga,L.B.A.; Cavalli,I.J.; Ribeiro,R.C.; Pasquini,R.. |
| Fanconi anemia is a rare hereditary disease showing genetic heterogeneity due to a variety of mutations in genes involved in DNA repair pathways, which may lead to different clinical manifestations. Phenotypic variability makes diagnosis difficult based only on clinical manifestations, therefore laboratory tests are necessary. New advances in molecular pathogenesis of this disease led researchers to develop a diagnostic test based on Western blot for FANCD2. The objective of the present study was to determine the efficacy of this method for the diagnosis of 84 Brazilian patients with Fanconi anemia, all of whom tested positive for the diepoxybutane test, and 98 healthy controls. The FANCD2 monoubiquitinated isoform (FANCDS+/FANCD2L-) was not detected in 77... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fanconi anemia; FANCD2 Western blot; Diepoxybutane test; Monoubiquitination; Immunoblotting. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2009000300004 |
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| Sun,Yi Fu; Shao,Li Wei; Chen,Qi; Gao,Xu; Li,Fang; Wu,Chang Yan. |
| Two new coordination polymers [Zn (bdc)(bpybzimH2)](DMF)0.5 (1, H2bdc=1,4-dicarboxybenzene, bpybzimH2=6,6′-bis-(1H-benzoimidazol-2-yl)-2,2′-bipyridine, DMF=N,N-dimethylformamide) and [Co (bpybzimH2)(sbc)]H2O (2, H2sbc=4-mercaptobenzoic acid) have been successfully prepared under solvothermal conditions using the multi-N chelating organic ligand bpybzimH2 as the foundational building block. In addition, the Cell Counting Kit-8 assay was conducted to evaluate the anti-proliferation activity of compounds 1 and 2 against human spinal tumor cells OPM-2. The cell viability curves showed that the two compounds have anti-proliferation activity on spinal tumor cells, and the activity of compound 1 is higher than compound 2. The annexin V-FITC/PI assay and western... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Coordination polymers; Glioma cell strains; Cytotoxicity; Apoptosis; Immunoblotting. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2019000500608 |
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| Passos,Angela Noronha; Kohara,Valdelene Sayuri; Freitas,Roseli Santos de; Vicentini,Adriana Pardini. |
| Several reports showed outbreaks of histoplasmosis acquired while bat-inhabited caves were visited by tourists, miners or researchers. We evaluated the performance of double immunodifusion (DI) and immunoblotting (IB) assays, employed for the histoplasmosis outbreak elucidation occurred in Vale do Paraíba, São Paulo. The existence of epidemiologic link, four patients with clinical signs suggestive of histoplasmosis and mycological confirmation has made that all 35 individuals involved to the cave visit were subjected to serological evaluation. By DI, we observed reactivity against H. capsulatum antigen in a single serum examined nearly 20 days after exposure to fungal propagules. On the other hand, IB showed reactivity against H and M fractions in 50% of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Histoplasma; Histoplasmosis; Immunoassay; Double immunodiffusion; Immunoblotting. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822014000400028 |
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