Key result
Transgenic mice expressing mutant alpha-MHC developed LV hypertrophy at 4 months, progressing to LV dilation and systolic impairment by 10 months in males, while females maintained systolic function.
This transgenic mouse model of familial hypertrophic cardiomyopathy demonstrates significant gender- and age-dependent differences in disease progression, with males developing earlier systolic impairment and ventricular dilation.
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Should not yet inform human FHC care; leaves open sex-specific progression mechanisms for further preclinical study.
Olsson et al. (2001) studied Familial hypertrophic cardiomyopathy. Transgenic expression of mutant alpha-MHC vs. Wild-type littermates was evaluated on Contractile characteristics (LV hypertrophy, diastolic and systolic function). Transgenic mice expressing mutant alpha-MHC developed LV hypertrophy at 4 months, progressing to LV dilation and systolic impairment by 10 months in males, while females maintained systolic function.
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