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. 2007 Oct 16;104(43):17169–17173. doi: 10.1073/pnas.0708228104

Fig. 3.

Fig. 3.

Age-related decline in adult hippocampal neurogenesis in the marmoset. (A) Photomicrograph of the adult marmoset dentate gyrus. (Scale bar: 200 μm.) (B) Younger marmosets 1.5–3 years of age (Upper) had a greater number of BrdU-labeled cells (arrows) in the dentate gyrus compared with older animals 3.5–7 years of age (Lower). (Scale bar: 10 μm.) The majority of BrdU-labeled cells expressed the immature and mature neuronal marker TuJ1 (C) or the mature neuronal marker NeuN (D). (C Left and D Left) BrdU-labeled cells. (C Center and D Center) TuJ1 (C) or NeuN (D). (C Right and D Right) Merged images with BrdU-labeled cells indicated by arrows. (Scale bar for C and D: 10 μm.) gcl, granule cell layer.