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  • Title: [Free and conjugated catecholamines in gastric and bile juice during surgical operations].
    Author: Shibata O, Kanairo M, Morooka H, Tsuzaki K, Fujigaki T, Fukusaki M, Gotoh Y.
    Journal: Masui; 1990 Aug; 39(8):978-83. PubMed ID: 2232140.
    Abstract:
    From 40 patients under surgical operation, gastric or bile juice was obtained to determine the possible excretion of free and conjugated catecholamine (CA) into the two kinds of juice. The patients were divided into normal renal function group and chronic renal failure group and former group was further divided into the dopamine (DA)-administered group and the non-DA-administered group. In the non-DA group with normal renal function, the gastric juice contained 0.30 +/- 0.11ng.ml-1 of free and 0.12 +/- 0.06ng.ml-1 of conjugated norepinephrine (NE) and also 0.09 +/- 0.07ng.ml-1 of free and 0.40 +/- 0.10ng.ml-1 of conjugated DA. In DA group, the gastric juice contained 2.01 +/- 0.41ng.ml-1 of free and 3.66 +/- 0.84ng.ml-1 of conjugated DA respectively. Significant differences in DA were observed between two groups. In the bile juice, the conjugated NE increased significantly from 0.15 +/- 0.05 ng.ml-1 to 1.24 +/- 0.34ng.ml-1 and also the conjugated DA increased significantly from 2.17 +/- 0.77ng.ml-1 to 21.33 +/- 5.23ng.ml-1 by infusion of DA at the rate of 2 micrograms.kg-1.min-1 for 197 +/- 48min. In chronic renal failure group, the conjugated NE and DA increased significantly to 1.04 +/- 0.27ng.ml-1 and 1.64 +/- 0.61ng.ml-1 respectively compared to that of normal renal group. It was confirmed that gastric juice and bile juice contain the free and conjugated CA during surgical operation and by the infusion of DA, free and conjugated DA are excreted into gastric juice and bile juice and also conjugated CA in the gastric juice from chronic renal failure group is increased.
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