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  • Title: Effect of selective parasympathetic denervation on the daily rhythm of tyrosine transaminase in the rat liver.
    Author: Magni F, Viola MP.
    Journal: J Auton Nerv Syst; 1985 Jul; 13(3):245-54. PubMed ID: 2863298.
    Abstract:
    The effect of section of the rostral hepatic nerve (RNH), branch of the left abdominal vagus, on the circadian rhythm of tyrosine transaminase (TAT) activity in rat liver has been investigated. It has been shown that the midnight peak of TAT activity is suppressed after section of the rostral hepatic nerve and by subdiaphragmatic vagotomy, but is unaffected by sham-operation and section of the ventral abdominal vagus caudal to the emergence of the rostral hepatic nerve. It is concluded that the rhythm of TAT activity is under neural control, either directly or reflexely.
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