Table 2.

Connexin transcripts expressed in axotomized compared with nonaxotomized motor neurons

CatRat
Percentage of motor neurons (mean ± SEM)Percentage of motor neurons (mean ± SEM)
Ipsilateral2-aContralateralIpsilateral2-bContralateral2-c
Cx3687  ± 485  ± 286  ± 487  ± 52-d
Cx3778  ± 379  ± 491  ± 288  ± 52-d
Cx4074  ± 774  ± 68  ± 29  ± 32-e
Cx43100  ± 0100  ± 093  ± 395  ± 42-d
Cx4558  ± 555  ± 545  ± 444  ± 42-d
Cx32, Cx260000
  • F2-a Side of spinal cord ipsilateral to muscle nerve cut. Motor neurons in the medial gastrocnemius, lateral gastrocnemius, and soleus motor nuclei were evaluated in dorsolateral region of ventral horn (n = at least 3 animals).

  • F2-b Side of spinal cord ipsilateral to sciatic nerve cut. Motor neurons in the dorsolateral and ventrolateral motor pools were evaluated (n = at least 3 animals).

  • F2-c See also Chang et al. (1999).

  • F2-d Not significantly different between rat and cat; Fisher's exact test; p > 0.100.

  • F2-e Significantly different; Fisher's exact test;p < 0.05.