[Neurochemical and ionic mechanisms of dorsal root potentials in the spinal cord of the immature rat].
Dorsal root potentials (DRP) recorded from spinal cord of 7-14-days old rats have two waves of depolarization. The fast wave of DRP is GABA-ergic in nature and the slow wave is evoked mainly by increasing of extracellular K+-ion concentration near the primary afferent terminals. The possible mechanisms of increasing extracellular K+-ion concentration evoked by dorsal root stimulation are discussed.
D000818:Animals; D002118:Calcium / Q000502:physiology; D005071:Evoked Potentials; D007473:Ion Channels / Q000502:physiology; D009433:Neural Inhibition; D011188:Potassium / Q000502:physiology*; D051381:Rats; D013116:Spinal Cord / Q000502:physiology*; D013126:Spinal Nerve Roots / Q000502:physiology*; D009435:Synaptic Transmission; D005680:gamma-Aminobutyric Acid / Q000502:physiology*
D007473:Ion Channels; D005680:gamma-Aminobutyric Acid; D011188:Potassium; D002118:Calcium
Neĭrokhimicheskie i ionnye mekhanizmy potentsialov dorsal'nogo koreshka v spinnom mozge nezrelykh krys.