| 11. | This is due to a positive role of senescent cells during tissue repair.
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| 12. | An engineered suicide gene was used in transgenic mice to delete senescent cells.
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| 13. | The criticism, of which there was a good deal, already seems senescent.
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| 14. | Protein turnover is believed to decrease with age in all senescent organisms including humans.
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| 15. | Nonetheless, the number of senescent cells in tissues rises substantially during normal aging.
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| 16. | Another identifying feature is the senescent red leaves.
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| 17. | The leaves turn red when senescent, hence the common name of bleeding heart.
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| 18. | Eliminating senescent cells increases the amount of time that mice are free of disease.
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| 19. | The presence of senescent cells also restrains fibrosis.
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| 20. | In culture, fibroblasts can reach a maximum of 50 cell divisions before becoming senescent.
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