Myofiber atrophy in diaphragm but not in limb muscle after IH.

<p>Representative images and quantification of cross-sectional area (CSA) in: (A) diaphragm and (B) tibialis anterior limb muscle, of control (Ctl) and hypoxia-exposed (IH) mice. Frequency distributions of fiber size in: (C) diaphragm and (D) limb muscle. Data are expressed as means (± SE) of 5 mice per group. * p<0.01 compared to Ctl by t-test. Scale bar = 50μm.