Abstract
The control of Zn and Cu homeostasis in the gut is not well understood; a role for bile and pancreatic secretions has been suggested. In the present study, the changes in biliary and pancreatic Zn and Cu after surgery were followed. Rats were prepared surgically with pancreatic, biliary, and intestinal cannulae, placed in restraint cages, and allowed to recover from anesthesia. Fluids were collected for up to 120 hours. Aliquots of the collected samples were analyzed for Zn and Cu. Zn in pancreatic juice did not follow a consistent pattern; however, the concentration of Zn was well correlated with pancreatic protein concentration. Cu in pancreatic juice was very low and was apparently not affected by surgery. In bile, Zn concentration increased markedly at about 40 hours postsurgery but declined to its initial level by days 4-5. Cu concentration in bile was similar to that of Zn initially, then increased 10-fold after 20-30 hours postsurgery, and returned to the initial level by days 4-5. These results demonstrate that the surgical procedure of cannulating bile and pancreatic ducts has a pronounced effect on the concentrations of Zn and Cu in bile and pancreatic fluid. This effect must be considered when designing and evaluating experiments concerned with the role of these secretions in trace element homeostasis.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 1165-1168 |
| Number of pages | 4 |
| Journal | Journal of Nutrition |
| Volume | 113 |
| Issue number | 6 |
| State | Published - 1983 |
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ASJC Scopus subject areas
- Food Science
- Medicine (miscellaneous)
Cite this
Zinc and copper in rat bile and pancreatic fluid : effects of surgery. / Schneeman, B. O.; Lonnerdal, B.; Keen, Carl L; Hurley, L. S.
In: Journal of Nutrition, Vol. 113, No. 6, 1983, p. 1165-1168.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Zinc and copper in rat bile and pancreatic fluid
T2 - effects of surgery
AU - Schneeman, B. O.
AU - Lonnerdal, B.
AU - Keen, Carl L
AU - Hurley, L. S.
PY - 1983
Y1 - 1983
N2 - The control of Zn and Cu homeostasis in the gut is not well understood; a role for bile and pancreatic secretions has been suggested. In the present study, the changes in biliary and pancreatic Zn and Cu after surgery were followed. Rats were prepared surgically with pancreatic, biliary, and intestinal cannulae, placed in restraint cages, and allowed to recover from anesthesia. Fluids were collected for up to 120 hours. Aliquots of the collected samples were analyzed for Zn and Cu. Zn in pancreatic juice did not follow a consistent pattern; however, the concentration of Zn was well correlated with pancreatic protein concentration. Cu in pancreatic juice was very low and was apparently not affected by surgery. In bile, Zn concentration increased markedly at about 40 hours postsurgery but declined to its initial level by days 4-5. Cu concentration in bile was similar to that of Zn initially, then increased 10-fold after 20-30 hours postsurgery, and returned to the initial level by days 4-5. These results demonstrate that the surgical procedure of cannulating bile and pancreatic ducts has a pronounced effect on the concentrations of Zn and Cu in bile and pancreatic fluid. This effect must be considered when designing and evaluating experiments concerned with the role of these secretions in trace element homeostasis.
AB - The control of Zn and Cu homeostasis in the gut is not well understood; a role for bile and pancreatic secretions has been suggested. In the present study, the changes in biliary and pancreatic Zn and Cu after surgery were followed. Rats were prepared surgically with pancreatic, biliary, and intestinal cannulae, placed in restraint cages, and allowed to recover from anesthesia. Fluids were collected for up to 120 hours. Aliquots of the collected samples were analyzed for Zn and Cu. Zn in pancreatic juice did not follow a consistent pattern; however, the concentration of Zn was well correlated with pancreatic protein concentration. Cu in pancreatic juice was very low and was apparently not affected by surgery. In bile, Zn concentration increased markedly at about 40 hours postsurgery but declined to its initial level by days 4-5. Cu concentration in bile was similar to that of Zn initially, then increased 10-fold after 20-30 hours postsurgery, and returned to the initial level by days 4-5. These results demonstrate that the surgical procedure of cannulating bile and pancreatic ducts has a pronounced effect on the concentrations of Zn and Cu in bile and pancreatic fluid. This effect must be considered when designing and evaluating experiments concerned with the role of these secretions in trace element homeostasis.
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M3 - Article
VL - 113
SP - 1165
EP - 1168
JO - Journal of Nutrition
JF - Journal of Nutrition
SN - 0022-3166
IS - 6
ER -