Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. Alternative spelling of myofiber.

Etymologies

Sorry, no etymologies found.

Examples

  • Thus myofibre hypertrophy is initially accompanied by a significant addition of myonuclei.

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  • However, myofibre cross-sectional area increased by 7. 6-fold, and length by

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  • We found that there was no net gain in myofibre number in the EDL between P7 and P56

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  • Where myofibre hypertrophy during growth requires the addition of new myonuclei, these are supplied by muscle satellite cells, the resident stem cells of skeletal muscle.

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  • Since the significant myofibre hypertrophy from P21 to adulthood occurs without the net addition of new myonuclei, a considerable expansion of the myonuclear domain results.

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  • We also used our two mouse models to determine the number of satellite cells per myofibre during postnatal growth.

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  • Here, we report on the dynamics of postnatal myofibre growth in the mouse extensor digitorum longus (EDL) muscle, which is essentially composed of fast type II fibres in adult.

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  • Postnatal fast muscle fibre type growth is divided into distinct phases in mouse EDL: myofibre hypertrophy is initially supported by a rapid increase in the number of myonuclei, but nuclear addition stops around P21.

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  • Satellite cell number in EDL was initially ~14 satellite cells per myofibre at P7, but then fell to reach the adult level of ~5 by P21.

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  • There was no further addition of myonuclei from P21, but myofibre volume continued to increase, resulting in an estimated ~3-fold expansion of the myonuclear domain to 26500 microns cubed by P56.

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