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Fig. 6. Immunohistochemical localisation of phosphorylated p38-MAPK in the
ventricle of isolated amphibian heart perfused under normal conditions (A) and
with 50 µmol l-1 of phenylephrine (PHE) for 0.5 min in the
absence (B) or presence of either 1 µmol l-1 prazosin (C), 1
µmol l-1 propranolol (D) or 1 µmol l-1 SB203580
(E). Cryosections were incubated with phospho-p38 MAPK specific antibody
(1:200 dilution) and counterstained with Haematoxylin. Representative
photographs from three independent experiments performed with similar results
are shown. Immunolocalisation deposits are visualised with Fast Red chromogen.
Bar, 20 µm.