Eufrosina S Umezawa
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Explore the profile of Eufrosina S Umezawa including associated specialties, affiliations and a list of published articles.
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12
Citations
347
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Recent Articles
1.
Ferreira-Silva M, de Araujo Pereira G, Rodrigues-Junior V, Meira W, Basques F, Langhi-Junior D, et al.
Hematol Transfus Cell Ther
. 2020 Sep;
43(4):410-416.
PMID: 32943369
Background: The screening ofTrypanosoma cruzi-infected blood donors using two serological techniques frequently leads to conflicting results. This fact prompted us to evaluate the diagnostic performance of four "in-house" immunodiagnostic tests...
2.
Ferreira L, Kesper N, Teixeira M, Laurenti M, Barbieri C, Lindoso J, et al.
Acta Trop
. 2013 Nov;
131:41-6.
PMID: 24275757
We investigated whether ELISA using crude antigens from insect and plant trypanosomatids, which are non-pathogenic and easily cultivated in large scale, has the same positivity data as Leishmania (Leishmania) chagasi,...
3.
Sousa Jr J, Diaz L, Eaton D, Hans-Filho G, Freitas E, Delgado L, et al.
Am J Trop Med Hyg
. 2012 Jul;
87(4):675-80.
PMID: 22826496
Fogo selvagem (FS) is an autoimmune bullous disease with pathogenic IgG autoantibodies recognizing desmoglein 1 (Dsg1), a desmosomal glycoprotein. In certain settlements of Brazil, a high prevalence of FS (3%)...
4.
Caballero Z, Sousa O, Marques W, Saez-Alquezar A, Umezawa E
Clin Vaccine Immunol
. 2007 May;
14(8):1045-9.
PMID: 17522327
Five commercially available enzyme-linked immunosorbent assays (ELISAs), one in-house ELISA, and two hemagglutination assays were evaluated to determine their diagnostic accuracy for Chagas' disease in two studies. In study 1,...
5.
Teixeira M, da Silva F, Marcili A, Umezawa E, Shikanai-Yasuda M, Cunha-Neto E, et al.
Trop Med Int Health
. 2006 Mar;
11(3):294-8.
PMID: 16553909
Trypanosoma cruzi, the agent of Chagas disease, is genetically classified into two major evolutionary lineages, T. cruzi I and T. cruzi II. In Southern American Cone countries it is T...
6.
Ponce C, Ponce E, Vinelli E, Montoya A, de Aguilar V, Gonzalez A, et al.
J Clin Microbiol
. 2005 Oct;
43(10):5065-8.
PMID: 16207963
In this study we compared the performance of the Chagas Stat-Pak rapid immunochromatographic test with a standard enzyme-linked immunosorbent assay (ELISA) in the serodiagnosis of Chagas' disease in Central America....
7.
Anez N, Crisante G, da Silva F, Rojas A, Carrasco H, Umezawa E, et al.
Trop Med Int Health
. 2004 Dec;
9(12):1319-26.
PMID: 15598264
Trypanosoma cruzi isolates from 23 acute chagasic patients from localities of Western Venezuela (state of Barinas) where Chagas' disease is endemic were typed using ribosomal and mini-exon gene markers. Results...
8.
Umezawa E, Luquetti A, Levitus G, Ponce C, Ponce E, Henriquez D, et al.
J Clin Microbiol
. 2004 Jan;
42(1):449-52.
PMID: 14715803
An enzyme-linked immunosorbent assay to diagnose Chagas' disease by a serological test was performed with Trypanosoma cruzi recombinant antigens (JL8, MAP, and TcPo). High sensitivity (99.4%) and specificity (99.3%) were...
9.
Bilate A, Salemi V, Ramires F, Brito T, Silva A, Umezawa E, et al.
Microbes Infect
. 2003 Oct;
5(12):1116-24.
PMID: 14554253
Chronic Chagas' disease cardiomyopathy (CCC) is caused by the protozoan Trypanosoma cruzi, and it affects 30% of the 16-18 million people infected in Latin America. A good rodent model that...
10.
Luquetti A, Ponce C, Ponce E, Esfandiari J, Schijman A, Revollo S, et al.
Diagn Microbiol Infect Dis
. 2003 Aug;
46(4):265-71.
PMID: 12944018
A rapid serologic test for diagnosis of T. cruzi infection (Chagas Stat Pak) was developed using recombinant proteins in an immunochromatographic assay. This cassette format test was evaluated first in...