Fig. 6From: Immunomodulatory effects of nicotine on interleukin 1β activated human astrocytes and the role of cyclooxygenase 2 in the underlying mechanismCo-localization of α7 nicotinic acetylcholine receptor on activated human astrocytes treated with nicotine. Double immunofluorescence images showing the expression of astroglial marker GFAP (red), α7nACh receptor (green), and nucleus (blue). Representative images were taken at ×40 magnification under the microscopeBack to article page