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AIDS Patient Care STDS. 2005 Apr;19(4):212-5.

Tumor necrosis factor-alpha levels in patients with HIV with wasting in South Asia.

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Department of Medicine, All India Institute of Medical Sciences, New Delhi, India.


Tumor necrosis factor (TNF)-alpha is thought to play an important role in wasting; but TNF-alpha levels have not been consistently found to be high in AIDS wasting. We conducted this study to determine any correlation between TNF-alpha levels and wasting in HIV-positive patients in a developing country. TNF-alpha levels were measured in four groups of patients: Group 1, HIV/AIDS with wasting (n = 25); group 2, HIV/AIDS without wasting (n = 47); group 3, HIV-negative patients with tuberculosis with wasting (n = 25); and group 4, healthy controls (n = 25). Wasting was defined as a body bass index (BMI) </=16.0 kg/m(2). TNF-alpha was measured by a solid-phase sandwich enzyme linked immunosorbent assay (ELISA) kit. The mean BMI in HIV-positive patients with wasting (group 1) and without wasting (group 2) was 15.192 +/- 1.142 and 19.507 +/- 2.457, respectively, while group 3 and 4 had a BMI of 14.878 +/- 3.234 and 21.862 +/- 2.763 kg/m(2). The mean TNF-alpha level in group 1 was 50.864 +/- 99.13 pg/mL and 43.39 +/- 66.372 pg/mL in group 2. There was no significant difference between the two groups. TNF-alpha was significantly higher in the HIV/AIDS groups (group 1 and 2) compared to the tuberculosis group (10.74 +/- 7.854) and healthy controls (5.846 +/- 3.40) at p = 0.01. TNF-alpha was significantly (p = 0.002) higher in symptomatic patients compared to asymptomatic patients (16.03 +/- 7.61 versus 64.70 +/- 98.70). In conclusion, TNF-alpha levels were higher in HIV patients, regardless of the presence of wasting, compared to normal healthy controls of patients with tuberculosis with wasting.

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