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Quantification of mRNA changes in TβRIIΔ/Δ lungs. Total RNA from E15.5 TβRIIΔ/Δ and TβRIIfl/fl (control) embryonic lungs was used for Northern blot analysis (A), and the results were quantified by densitometry and normalized by GAPDH (B). Values are fold induction or repression, compared with TβRIIfl/fl controls (arbitrarily adjusted to 1).
