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M9650930.TXT
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1996-03-30
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Document 0930
DOCN M9650930
TI Detection and characterization by immunoblot analysis of potentially
diagnostic Leishmania infantum polypeptides in human visceral
leishmaniasis.
DT 9505
AU Cardenosa N; Riera C; Cortes P; March F; Munoz C; Portus M; Prats G;
Departament de Microbiologia, Hospital de la Santa Creu i Sant; Pau,
Universitat Autonoma de Barcelona, Spain.
SO Parasite Immunol. 1995 Oct;17(10):509-16. Unique Identifier : AIDSLINE
MED/96164305
AB Humoral immune responses were studied in 53 sera from 18 patients with
visceral leishmaniasis by immunoblot analysis. Sera from visceral
leishmaniasis patients recognized antigens with molecular weights
ranging from < 14 kDa to more than 100 kDa. Bands ranging between 49 and
< 14 kDa were the most specific. The 40, 33 and 17 kDa antigens were
recognized by 90%, 79% and 79% of the patients sera, respectively. Sera
from one patient with Chagas' disease identified 8 of 11 antigens of the
specific region. Treatment with periodate eliminated the cross-reaction
in three of these antigens (40, 29, 26 kDa). The study of serial sera
collected from the different patients showed a decrease in intensity or
dissappearance in some of the diagnostic bands, particularly the 17 kDa
band. The band of 17 kDa seems to be useful to study the clinical
evolution, for post-treatment control and also for epidemiologic
purposes. (It has been identified in 7% of control sera from endemic
areas.) Immunoblot could be a valuable tool in the diagnosis of visceral
leishmaniasis, being more sensitive and specific than other serologic
tests.
DE Acquired Immunodeficiency Syndrome/COMPLICATIONS Adult Animal
Antibodies, Protozoan/BLOOD *Antigens, Protozoan/CHEMISTRY
Carbohydrates/CHEMISTRY/IMMUNOLOGY Chagas Disease/IMMUNOLOGY Child
Cross Reactions Epitopes/CHEMISTRY Human
Immunoblotting/*METHODS/STATISTICS & NUMER DATA Leishmania
infantum/*IMMUNOLOGY Leishmaniasis,
Visceral/COMPLICATIONS/*DIAGNOSIS/*IMMUNOLOGY Molecular Weight
Protozoan Proteins/CHEMISTRY/*IMMUNOLOGY Sensitivity and Specificity
Support, Non-U.S. Gov't JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).