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Original Article
Online Published: 21 Dec 2015
 


Diagnostic efficacy of Adenosine deaminase activity in patients with very low CD4 counts and pulmonary tuberculosis

K. Deopujari, V. K. Sharma, T. N. Dubey, Rajendra Kumar Jain, M. Sharma, Nupur Goyal.


Abstract
Adenosine deaminase activity (ADA) is a commonly used marker for the diagnosis of pulmonary tuberculosis (PTB). There have been concerns about its usefulness in immune-compromised pa-tients, especially HIV positive patients with very low CD4 counts. The objective of this study was to evaluate the sensitivity of ADA in HIV sero-positive patients having low CD4 counts, and compare it with its sensitivity in HIV sero-negative patients. Suspected tubercular patients on the basis of clinical and radiological grounds were subjected to laboratory diagnosis for confirmation of pulmonary tuberculosis and HIV status after an informed consent. Each patient was evaluated for serum adenosine deaminase activity (ADA) (by the sensitive colorimetric method described by Guisti), HIV (by Enzyme linked immune sorbent assay (ELISA) test), and CD4 counts. Out of a total 150 PTB patients, 120 were HIV sero-negative and 30 were HIV sero-positive. In HIV sero-positive PTB patients, the overall sensitivity, specificity, positive predictive value and negative predictive value of ADA was 93%, 95%, 96%, and & 90% respectively, as compared to 95%, 95%, 99% and 76% in HIV in sero-negative PTB. The mean ADA value was 87.1+36.24 in HIV patient with CD4 count >200 cell/microL (mean CD4 count245 cell/microL), as compared to 71.32+36.35 in patients with CD4 count <200 cell/microL (mean CD4 count 86 cell/microL) which is statistically not significant (p-value > 0.05). There was no correlation between ADA activity and CD4 count (r = -0.460, p< 0.05). We concluded that ADA analysis is a sensitive marker for diagnosis of pulmonary tuberculosis even in HIV patients with very low CD4 counts especially in a high TB endemic region, like India.

Key words: HIV, Serum ADA, Pulmonary tuberculosis


 
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How to Cite this Article
Pubmed Style

K. Deopujari, V. K. Sharma, T. N. Dubey, Rajendra Kumar Jain, M. Sharma, Nupur Goyal. Diagnostic efficacy of Adenosine deaminase activity in patients with very low CD4 counts and pulmonary tuberculosis. J Med Allied Sci. 2013; 3(2): 76-80.

Web Style

K. Deopujari, V. K. Sharma, T. N. Dubey, Rajendra Kumar Jain, M. Sharma, Nupur Goyal. Diagnostic efficacy of Adenosine deaminase activity in patients with very low CD4 counts and pulmonary tuberculosis. https://jmas.in/?mno=211417 [Access: September 12, 2024].

AMA (American Medical Association) Style

K. Deopujari, V. K. Sharma, T. N. Dubey, Rajendra Kumar Jain, M. Sharma, Nupur Goyal. Diagnostic efficacy of Adenosine deaminase activity in patients with very low CD4 counts and pulmonary tuberculosis. J Med Allied Sci. 2013; 3(2): 76-80.


Vancouver/ICMJE Style

K. Deopujari, V. K. Sharma, T. N. Dubey, Rajendra Kumar Jain, M. Sharma, Nupur Goyal. Diagnostic efficacy of Adenosine deaminase activity in patients with very low CD4 counts and pulmonary tuberculosis. J Med Allied Sci. (2013), [cited September 12, 2024]; 3(2): 76-80.


Harvard Style

K. Deopujari, V. K. Sharma, T. N. Dubey, Rajendra Kumar Jain, M. Sharma, Nupur Goyal (2013) Diagnostic efficacy of Adenosine deaminase activity in patients with very low CD4 counts and pulmonary tuberculosis. J Med Allied Sci, 3 (2), 76-80.


Turabian Style

K. Deopujari, V. K. Sharma, T. N. Dubey, Rajendra Kumar Jain, M. Sharma, Nupur Goyal. 2013. Diagnostic efficacy of Adenosine deaminase activity in patients with very low CD4 counts and pulmonary tuberculosis. Journal of Medical and Allied Sciences, 3 (2), 76-80.


Chicago Style

K. Deopujari, V. K. Sharma, T. N. Dubey, Rajendra Kumar Jain, M. Sharma, Nupur Goyal. "Diagnostic efficacy of Adenosine deaminase activity in patients with very low CD4 counts and pulmonary tuberculosis." Journal of Medical and Allied Sciences 3 (2013), 76-80.


MLA (The Modern Language Association) Style

K. Deopujari, V. K. Sharma, T. N. Dubey, Rajendra Kumar Jain, M. Sharma, Nupur Goyal. "Diagnostic efficacy of Adenosine deaminase activity in patients with very low CD4 counts and pulmonary tuberculosis." Journal of Medical and Allied Sciences 3.2 (2013), 76-80. Print.


APA (American Psychological Association) Style

K. Deopujari, V. K. Sharma, T. N. Dubey, Rajendra Kumar Jain, M. Sharma, Nupur Goyal (2013) Diagnostic efficacy of Adenosine deaminase activity in patients with very low CD4 counts and pulmonary tuberculosis. Journal of Medical and Allied Sciences, 3 (2), 76-80.


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