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Fig. 6. Stability of Ostf1 transcripts. EGCPC were pre-incubated for 2 h with 5
µg ml-1 actinomycin D in isosmotic medium (300 mOsmol
kg-1). Treatments were initiated at time 0 for isosmotic controls
(black squares) and cells exposed to hyperosmotic stress (600 mOsmol
kg-1, NaCl; open circles). Ostf1 mRNA levels were determined by
quantitative real-time PCR and normalized to 18S RNA. Remaining mRNA relative
to time 0 is shown on a logarithmic scale. Asterisks indicate significant
differences between pairs (P<0.05). Values are means ±
s.e.m., N=4.