Decline in beta-2 microglobulin levels after antitubercular therapy in tubercular patients with HIV infection.

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dc.contributor.authorWanchu, Aen_US
dc.contributor.authorArora, Sen_US
dc.contributor.authorBhatnagar, Aen_US
dc.contributor.authorSud, Aen_US
dc.contributor.authorBambery, Pen_US
dc.contributor.authorSingh, Sen_US
dc.date.accessioned2001-10-10en_US
dc.date.accessioned2009-05-27T10:16:28Z
dc.date.available2001-10-10en_US
dc.date.available2009-05-27T10:16:28Z
dc.date.issued2001-10-10en_US
dc.description.abstractBACKGROUND: Infection with Mycobacterium tuberculosis results in a state of immune activation, more so, when there is concomitant HIV infection. Beta-2 microglobulin (B2M) is a useful marker to study the state of immune activation among the HIV infected. Objective. To study the modulation of B2M levels among patients with HIV/TB coinfection, to correlate it with the CD4 count and also to study the change in these levels after four weeks of therapy. MATERIAL AND METHODS: Twelve patients with HIV infection and having concomitant TB diagnosed on the basis of positive acid fast bacilli were studied both at baseline and then at four weeks. Fourteen HIV infected individuals who had no overt opportunistic infection at the time of the study were also studied along with fourteen age and sex matched healthy volunteers. CD4 counts were performed using a flowcytometer. B2M was measured using a commercially available ELISA kit. RESULTS: B2M levels in HIV/TB coinfected patients were 1.62+/-0.45 mg/L (range 1-2.7 mg/L) and were significantly higher (p<0.0002) when compared with healthy controls, whose levels were 0.74+/-0.05 mg/L (range 0.48-81 mg/L). The levels in HIV infected individuals free of opportunistic infections were 1.2+/-0.16 mg/L (range 0.78-1.92 mg/L) and were significantly lower than the levels in HIV/TB coinfected (p<0.017), but significantly higher than the levels in healthy controls (p<0.01). Four weeks of antitubercular therapy resulted in a decline in B2M to 1.08+/-0.26 mg/L (range 0.8-1.74 mg/L) and was statistically significant (p<0.012). There was no correlation between the CD4 counts and the pre-treatment levels of B2M among these patients. CONCLUSION: Patients with HIV/TB coinfection had significantly higher levels of B2M than individuals with HIV infection without associated opportunistic infection and healthy controls. Four weeks of anti-tuberculous therapy resulted in a significant decline in these levels.en_US
dc.description.affiliationDepartment of Internal Medicine, Postgraduate Institute of Medical Education and Research, Chandigarh, India. a_wanchu@yahoo.comen_US
dc.identifier.citationWanchu A, Arora S, Bhatnagar A, Sud A, Bambery P, Singh S. Decline in beta-2 microglobulin levels after antitubercular therapy in tubercular patients with HIV infection. The Indian Journal of Chest Diseases & Allied Sciences. 2001 Oct-Dec; 43(4): 211-5en_US
dc.identifier.urihttps://imsear.searo.who.int/handle/123456789/29560
dc.language.isoengen_US
dc.source.urihttps://medind.nic.in/iae/iaem.shtmlen_US
dc.subject.meshAdulten_US
dc.subject.meshAntitubercular Agents --therapeutic useen_US
dc.subject.meshCD4 Lymphocyte Counten_US
dc.subject.meshComorbidityen_US
dc.subject.meshFemaleen_US
dc.subject.meshHIV Infections --blooden_US
dc.subject.meshHumansen_US
dc.subject.meshMaleen_US
dc.subject.meshTuberculosis --blooden_US
dc.subject.meshbeta 2-Microglobulin --blooden_US
dc.titleDecline in beta-2 microglobulin levels after antitubercular therapy in tubercular patients with HIV infection.en_US
dc.typeJournal Articleen_US
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