Mercury, Autoimmunity, and Environmental Factors on Cheyenne River Sioux Tribal Lands
Figure 3
Examples of ANA determination by immunofluorescence. Human sera were incubated with HEp-2 cells followed by fluorescent anti-human IgG. The sample on the left (a) is ANA negative, while the sample on the right (b) was considered 2+ ANA positive, showing fine speckled nuclear staining sparing the nucleolus.
