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  • Title: [Role of specific immunoglobulins of classes G, E and subclasses G1, G4 in the diagnosis of tuberculosis in children with hyperergic tuberculin sensitivity].
    Author: Gubkina MF, Averbakh MM, Avdienko VG, Ovsiankina ES, Kuz'mina IK, Petrakova IIu.
    Journal: Probl Tuberk Bolezn Legk; 2007; (7):3-5. PubMed ID: 17718066.
    Abstract:
    The study covered 56 patients (aged 6-14 years) having hyperergic tuberculin sensitivity, including 28 patients with pulmonary tuberculosis (Group 1) and 28 patients infected with Mycobacterium tuberculosis (MBT) (Group 2). All tuberculous processes were asymptomatic and limited. Minor forms of tuberculosis, diagnosed by computed tomography, were found in 71.4% of cases. The signs of incomplete calcification were detectable in 93% of cases. In the past year, tuberculin sensitivity has progressed to hyperergic one in 75% of Group 2 patients. The patients with tuberculosis were treated with 3 drugs; those infected with M BT received 2 agents. In the patients with minor forms of tuberculosis, the level of specific IgG antibodies was equal to those in healthy MBT-infected individuals with hyperergic tuberculin sensitivity, the levels of immunoglobulins of subclasses G1 and G4 were lower, that of IgE antibodies were higher than in the MTB-infected. These data may suggest the stability of the immune system in patients with minor forms of tuberculosis, detected in the phase of calcification, and its instability in the MBT-infected with tuberculin sensitivity increasing up to hyperergic one.
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