Figure 3

HPLC-MS/MS-based approach application to human plasma samples. Plasma concentrations of DHEA, AED, AET and 7-oxo-DHEA measured by HPLC-MS/MS for HD (white circles) and HIV-TB patients (black circles). Each symbol represents an individual subject (n values are shown). Horizontal lines represent mean values and error bars symbolize SEM. Mann-Whitney U test,*p < 0.05, **p < 0.01.