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. 2011 Mar 14;6(3):e17949. doi: 10.1371/journal.pone.0017949

Figure 5. pH measurements in the embryonic inner ear.

Figure 5

A: Measurements of the endolymphatic and perilymphatic pH in the cochlea of isolated in vitro superfused otocysts from Slc26a4+/− (HET) and Slc26a4−/− (KO) mice aged E14.5–E17.5. Data from P10 Slc26a4+/− mice, obtained by in situ measurements and reported earlier [11], are shown here for comparison. B: Measurements of the endolymphatic pH in the endolymphatic sac of isolated otocysts from Slc26a4+/− (HET) and Slc26a4−/− (KO) mice aged E14.5–E17.5. Numbers next to the bars represent the N number of otocysts. Significant differences between endolymph from Slc26a4+/− (black) and Slc26a4−/− (red) mice are marked with a star.