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  • Title: [Does the destruction of the catecholaminergic neurons in newborn rat pups influence the modulatory function of the cholinergic system?].
    Author: Raevskiĭ VV, Tegetmayer C, Trifonov AA.
    Journal: Zh Vyssh Nerv Deiat Im I P Pavlova; 1992; 42(5):1018-22. PubMed ID: 1336263.
    Abstract:
    On outbred ratlings aged 21-31 days the influence was studied of the destruction of catecholaminergic (CA) system on the reactions of the neurones of the cortical somatosensory zone, elicited by the stimulation of the ischiatic nerve and modulation of these reactions after stimulation of the basal nuclei area (the source of the neocortex cholinergic innervation) and acetylcholine (ACh) microiontophoretic application. It is shown that destruction of CA system in newborn ratlings increases the reactivity of the somatosensory cortical neurones in 21-31 days old animals to sensory stimulation; it does not influence the efficiency of modulating action of the cholinergic system of the forebrain and leads to the increase of modulating influence of the applicated ACh. It is postulated that as the result of perinatal destruction of CA brain system, in the neocortex a specific morpho-functional organization is formed of structures and processes at which the modulating function of the forebrain cholinergic system turns out, by quantitative criterion, at least, to be compensated.
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