Fig. 2
From: Domperidone treatment advances onset of puberty in the viviparous mosquitofish Gambusia affinis
a–c Photomicrographs of transverse sections through the proximal pars distalis (PPD) of the pituitary gland (P) in juvenile G. affinis showing GnRH-immunoreactive fibres (arrows) in treatment control (a), and 1.5 mg (b) and 4 mg DOM (c)-treated fish. Note the intensely immunoreactive GnRH fibres in DOM treated fish (b, c) compared to treatment controls (a). Alexa Fluor 488 labelled. Scale bar, 50 μm; Inset of figure b, 200 μm