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Lung India Official publication of Indian Chest Society  
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Year : 1996  |  Volume : 14  |  Issue : 2  |  Page : 69-71

Circulating Immune Complexes In Pulmonary Tuberculosis

Correspondence Address:
Baldev Raj

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Source of Support: None, Conflict of Interest: None

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Serum levels of circulating immune complexes (CIC) were estimated by polyethylene glycol precipitation method in 20 newly diagnosed sputum positive cases pulmonary tuberculosis to evaluate the CIC levels before and after treatment with short course chemotherapy. Twenty healthy persons were studied as controls. Serum CIC levels were estimated in each patient before treatment and at three and six months after treatment. The mean serum CIC levels was significantly higher in patients (314.2 ± 106.5 vs 97.9 ± 64.8, p < 0.001) compared to control subjects. Eighteen patients (90%) had elevated levels before treatment. At the end of treatment, mean CIC levels was significantly lower (106.0 ± 156.6, P<0.001) compared to pretreatment values. Elevated levels persisted in two patients (10%) at the end of treatment. The mean serum CIC levels before treatment was significantly lower in patients who become smear negative at first month compared to those who become smear negative at second month (266.8 ± 98.0 vs 385.3 ± 72.8, P<0.01). The mean serum CIC levels had shown a tendency to increase as the severity of radiological abnormalities increased.

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