Figure 2From: Beta-estradiol attenuates hypoxic pulmonary hypertension by stabilizing the expression of p27kip1 in rats Effects of β-E2 on rat PASMCs proliferation under hypoxia exposure (MTT assay). *P < 0.01, significant difference from the normoxia group. # P < 0.01, significant difference from the hypoxia group. Values are expressed as mean ± SD (n = 3).Back to article page