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Figure 3 Beta-myosin heavy chain (top left, ß-MHC) and atrial natriuretic factor (top right, ANF) messenger ribonucleic acid (mRNA) levels normalized to glyceraldehyde phosphate dehydrogenase (GAPDH) in densitometry units, and expressed as relative increase to gender-matched control (Con) hearts. Values are mean ± SE. Bottom shows representative samples from Northern blotting showing mRNA expression of beta-myosin heavy chain, ANF and GAPDH. LVH = left ventricular hypertrophy.