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  • Title: The effect of reserpine treatment on choline acetyltransferase activity in rat submaxillary glands.
    Author: Ekström J.
    Journal: Acta Physiol Scand; 1986 Jan; 126(1):103-6. PubMed ID: 3953297.
    Abstract:
    Rats were treated daily with a low dose of reserpine (0.1 mg kg-1) injected subcutaneously for 3 weeks. In the submaxillary glands the noradrenaline content was reduced by about 95%. The total activity of the acetylcholine-synthesizing enzyme choline acetyltransferase remained unchanged. However, the activity of this enzyme was found to be increased when the reserpine treatment was followed by surgical sympathetic denervation and the glands were analysed 3 weeks post-operatively. The enzyme activity also increased in the glands when the surgical sympathetic denervation was performed on the day of the start of the reserpine treatment. The lack of effect of reserpine on choline acetyltransferase activity in the glands seems to exclude the possibility that it is the depletion of neuronal noradrenaline stores that initiates the events giving rise to increases in choline acetyltransferase activity after sympathetic denervation.
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