Fig. 4

Immunofluorescence staining of markers of the median eminence blood-brain barrier I. a Low magnification and b high magnification of immunofluorescence staining using primary antibodies against vimentin (green) and FGF10 (red). Specimens were obtained from bregma-anteroposterior − 2.06 to − 2.18. The images are representative of three independent experiments. 3v third ventricle, CTR control fed chow, FGF10 fibroblast growth-factor 10, HFD high-fat diet, wk week, Vim vimentin. The main histological findings described in the text are highlighted by the yellow dashed boxes/ellipses