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. 2017 Jan 17;7:40534. doi: 10.1038/srep40534

Figure 4.

Figure 4

Histochemical analysis of phosphorylated ERK1/2 (pERK) (a; green), calcium sensing receptor (CaSR) (b; red), and vitamin D receptor (VDR) (c; red). Paraformaldehyde-treated paraffin-embedded thyro-parathyroid glands were sectioned and stained for pERK, CaSR, and VDR using the indirect immunofluorescence staining technique as described in the Methods section. Fgfr1–3flox/flox, αKlothoflox/flox, or Fgfr1–4flox/flox mice were mated (cKO) or not mated (non-cKO) with PTH-Cre mice, and treated (heminephrectomy plus high-phosphate diet) or not treated for CKD, as described in the Methods section. Scale bars: 10 μm.