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Study of the antibody response against Mycobacterium tuberculosis antigens in W...
Araujo,Z; Waard,JH de; Fernández de Larrea,C; López,D; Fandiño,C; Maldonado,A; Hernández,E; Ocaña,Y; Ortega,R; Singh,M; Ottenhoff,Tom HM; Arend,SMThis study was aimed at investigating alternate methods for serodiagnosis of tuberculosis (TB), which are needed because bacteriologic diagnosis of childhood TB is difficult. A selection of 80 serum and saliva samples were tested from Warao indigenous children under 15 years of age; 34 high TB suspects (28 positive and 6 negative for the tuberculin skin test, TST) and 46 healthy contact children (32 positive an...
Nuclear magnetic resonance and potentiometric studies of the protonation scheme...
Geraldes, C. F. G. C.; Alpoim, M. C.; Marques, M. P. M.; Sherry, A. Dean; Singh, M.The protonation constants of the macrocyclic ligand 1,4,7-triazacyclononane-N,N’,N”-triacetiacc id (NOTA) have been measured by potentiometry, and the protonation sequence of the various amino and carboxylate groups of NOTA has been studied in DzO as a function of pD from the chemical shifts of the nonlabile protons. Shielding constants for protonation of the amino groups were determined in a NMR study of the t...
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