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Table 3 Telomere lengths in members of the ring 17 family and in normal age-matched individuals

From: Telomere shortening and telomere position effect in mild ring 17 syndrome

  Age (years) Cell scored Mean cellular telomere length Normal metaphases Ring metaphases
     17p arm +17q arm 17p arm +17q arm (homolog of ring chromosome) 17p arm +17q arm (ring chromosome)
III-1 10 51* 53.0 ± 4.6 103.7 ± 9.2 94.5 ± 6.3 48.1 ± 5.6
cntr1 10 20 75.1 ± 6.5 108.9 ± 8.9   
cntr2 11 20 91.4 ± 7.4 153.9 ± 11.8   
cntr3 12 20 117.8 ± 11.3 193.3 ± 16.5   
cntr4 12 20 95.5 ± 8.4 163.7 ± 14.1   
II-1 30 19 49.9 ± 5.6 71.9 ± 7.7   
II-2 34 68** 54.0 ± 4.8 77.0 ± 4.2 66.8 ± 4.6 75.9 ± 5.6
cntr5 33 20 50.5 ± 3.6 68.7 ± 6.0   
cntr6 33 20 63.8 ± 6.0 62.7 ± 6.1   
cntr7 33 20 49.1 ± 4.3 60.7 ± 3.6   
cntr8 37 20 45.7 ± 3.6 76.0 ± 4.2   
cntr9 37 20 80.9 ± 7.7 132.7 ± 14.9   
  1. Data are shown for all the individuals analyzed. *18 normal metaphases and 33 carrying the ring 17 chromosome. **46 normal metaphases and 22 carrying the ring 17 chromosome.