Fig 6.

Immunohistochemical analysis of TGF-β₁ in wild-type and asymptomatic R6/2 mice. Immunohistochemical analysis of TGF-β₁ in a representative wild-type and asymptomatic R6/2 mouse is shown in (A). Arrowheads indicate the zone showed at higher magnification. Double fluorescent staining for TGF-β₁ and GFAP, or TGF-β₁ and NeuN in cortical neurons of a representative wild-type and asymptomatic R6/2 mouse is shown in (B) and (C), respectively. Note that TGF-β₁ is expressed in neurons and not in astrocytes.