mortality/aging
• partial lethality between E10.5 and E12.5
• mice that survive are viable and fertile
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cardiovascular system
• decreased and poorly organized at E11.5
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• at E11.5
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• poorly formed at E11.5
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• frequently seen at E11.5
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• in about 50% of embryos at E10.5
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• decrease in the number of proliferation myocytes in the heart at E10
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growth/size/body
• about 50% of embryos show some developmental delay at E10.5
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• in males at 3 months of age
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• evident in surviving mice by 1 week of age
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muscle
• decreased and poorly organized at E11.5
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• at E11.5
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• in the calf probably as a result of fewer myofibers as the size of individual fibers and number of fibers per cross-sectional area are similar to wild-type controls
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• increased death of cultured satellite cells over a 96 h period
• however, no difference in satellite cell proliferation is detected
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• decrease in the number of proliferation myocytes in the heart at E10
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• impaired regeneration in calf muscles following cardiotoxin induced necrotic damage
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embryo
• about 50% of embryos show some developmental delay at E10.5
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homeostasis/metabolism
• frequently seen at E11.5
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• in about 50% of embryos at E10.5
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cellular
• decrease in the number of proliferation myocytes in the heart at E10
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