cardiovascular system
• subcellular disorganization, with accumulation of vacuoles, mitochondria showing diversity in size, profoundly disrupted alignment, and a rounder and more densely packed appearance after tamoxifen treatment
• loss of mitochondrial cristae and smaller average mitochondria size after tamoxifen treatment
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• distorted and wavy myofiber architecture 4 weeks after tamoxifen treatment
• mitochondrial deformities accompanied by electron-dense material are present after tamoxifen treatment
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• elevated mitochondrial iron content but not heme levels 4 weeks after tamoxifen treatment
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• 8 weeks after tamoxifen treatment
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• increased left ventricular diastolic diameter at 8 weeks after tamoxifen treatment
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• 8 weeks after tamoxifen treatment
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• elevated lipid peroxidation and reactive oxygen species after tamoxifen treatment
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• as early as 4 weeks after tamoxifen treatment
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• reduced heart pump function as measured by fractional shortening and ejection fraction 4 and 8 weeks after tamoxifen treatment
• decreased strength of contraction (dP/dtmax) at 8 weeks after tamoxifen treatment
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• decreased relaxation (dP/dtmin) at 8 weeks after tamoxifen treatment
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• lower end systolic pressure at 8 weeks after tamoxifen treatment
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• mild after tamoxifen treatment
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homeostasis/metabolism
• elevated mitochondrial iron content but not heme levels 4 weeks after tamoxifen treatment
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muscle
• distorted and wavy myofiber architecture 4 weeks after tamoxifen treatment
• mitochondrial deformities accompanied by electron-dense material are present after tamoxifen treatment
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• reduced heart pump function as measured by fractional shortening and ejection fraction 4 and 8 weeks after tamoxifen treatment
• decreased strength of contraction (dP/dtmax) at 8 weeks after tamoxifen treatment
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• decreased relaxation (dP/dtmin) at 8 weeks after tamoxifen treatment
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• mild after tamoxifen treatment
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growth/size/body
• 8 weeks after tamoxifen treatment
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