Annals of Tropical Medicine and Public Health
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ORIGINAL ARTICLE
Year : 2016  |  Volume : 9  |  Issue : 5  |  Page : 327-330

Alteration of serum inflammatory cytokines in active pulmonary tuberculosis, following antitubercular treatment


1 Department of Microbiology, Jawaharlal Nehru Medical College, Aligarh Muslim University, Aligarh, Uttar Pradesh, India
2 Department of TB and Respiratory Diseases, Jawaharlal Nehru Medical College, Aligarh Muslim University, Aligarh, Uttar Pradesh, India

Correspondence Address:
Nazish Fatima
Department of Microbiology, Jawaharlal Nehru Medical College, Aligarh Muslim University, Aligarh, Uttar Pradesh
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/1755-6783.190179

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Introduction: Mycobacterium tuberculosis (Mtb) infects one third of the world population. Despite advance in therapy, tuberculosis (TB) remains responsible for 2-3 million deaths annually. During TB, cytokines play a role in host defense. Many cytokines are produced during TB with a predominance of Th1 cytokines during the early stage and Th2 cytokines in the later stages of the infection. The present study aims to screen tumor necrosis factor-alpha (TNF-α), interferon gamma (IFN-γ), interleukin (IL)-12p70, IL-4, IL-6, and IL-1β among TB patients and controls. Materials and Methods: The study was conducted at the Department Of Microbiology, Jawaharlal Nehru Medical College, Aligarh Muslim University, Aligarh, India. Different cytokine levels were measured in 65 samples of TB patients of whom 30 (46.1%) were new TB cases and 35 (53.8%) were suspected multidrug-resistant (MDR)-TB cases along with 15 bacille Calmette-Guérin (BCG) vaccinated healthy controls by enzyme-linked immunosorbent assay (ELISA) (Diaclone, France). Complete clinical, radiological, and treatment data were collected. Informed consent was taken from all subjects. Study was approved by the Institutional Bioethical Committee, Jawahar Lal Nehru Medical College. Statistical analysis had been performed by using Sigma plot (10.0). Results: The serum concentration of TNF-α, IFN-γ, IL-12p 70 , IL-1β, and IL-6 in patients with active TB and MDR-TB was elevated than in patients after anti-TB treatment (P < 0.001), in contacts (P < 0.001) and in controls (P < 0.001). It was found that IL-6 seems critical in resistance to TB. IL-4 concentration increased only in MDR-TB patients (P < 0.001) as compared to controls. All these cytokines showed no significant variations according to the site of involvement in pulmonary versus extrapulmonary TB cases. Conclusions: Measuring the serum levels of several cytokines may be useful for evaluating the activity of TB disease and monitoring the clinical effects of anti-tubercular treatment (ATT). The serum TNF-α, IFN-γ, IL-12p 70 , IL-1β and IL-6 level can be a useful marker to diagnose the effectiveness of therapy in the patients.


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