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Table 2 Electrophysiological data

From: Novel homozygous missense mutation in GAN associated with Charcot-Marie-Tooth disease type 2 in a large consanguineous family from Israel

Individual

Age (years)

Latency (ms)

CMAP (mV)

Motor nerve velocity (m/s)

Sensory nerve latency (ms)

SNAP (μV)

II:9

70

Median-4.6 (n < 4.2)

Median-13.9 (n > 4)

Median- 52 (n >49)

Median- 3.8 (n < 2.5)

Median-2.4

Ulnar- 3.7 (n)

Ulnar-8.3 (n > 6)

Ulnar-52 (n)

Ulnar-3.5 (n < 2.1)

 

Peroneal- 5.9 (n < 5.2)

Peroneal-1.7 (n > 2)

Peroneal-33 (n > 40)

Sural-absent

Sural- absent

II:10

70

Median 10.8

Median-1.5

Median- 38

Median – N/A

Median-absent

Ulnar-3.6 (n)

Ulnar-10

Ulnar-.56 (n)

Ulnar-2

Ulnar-6.2

Peroneal-5.1

Peroneal- 1

Tibial- 42

Sural-2.9 (n < 3.2)

Sural-19

III:12*

33

Median-5.5

Median-5.4

Median- 55.6

absent

absent

Ulnar- 5.6

Ulnar-1.5

Ulnar-50

Tibial& peroneal- N/A

Tibial-absent

Tibial-absent

Peroneal- absent

Peroneal- absent

IV:14*

6

Median-3.1

Median-6.1

Median- 60.7

Median- 2.8

Median-22

Ulnar-2.8

Ulnar-5

Ulnar-60

Ulnar-2.4

Ulnar-25

Tibial-4.2

Tibial-1.3

Tibial-35.6

 

Peroneal-4.1

 

Peroneal-56.4

 

normal

  

IV:15*

6

Median-3.7

Median-5.7

Median- 51.7

Median- 3

Median-56

Ulnar- 2.9

Ulnar-6.3

Ulnar- 66

Ulnar-3

Ulnar-42

Tibialis-5.1

Tibialis-3.1

Tibial- 41.8

Sural-3.5

Sural-9.9

Peroneal-4.1

Peroneal-0.5

Peroneal- 47.7

  

IV:18*

8

Median-4.5

Median-3.6

Median-64

absent

absent

Tibialis-4.4

Tibialis-1.4

Tibialis-50

Peroneal-5.7

Peroneal-2.1

Peroneal-59

  1. *Affected individual
  2. N/A not available