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Lymphocyte function in obstructive jaundice.

I A Fraser1, S Krakowka, S Ringler

  • 1Department of Surgery, Ohio State University, Columbus.

American Journal of Surgery
|April 1, 1989
PubMed
Summary
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This study found no significant impairment in lymphocyte function in dogs with obstructive jaundice. Therefore, altered lymphocyte function likely does not contribute to sepsis risk in these patients.

Area of Science:

  • Immunology
  • Surgical Pathology

Background:

  • Sepsis poses a significant risk following surgery for obstructive jaundice.
  • While reticuloendothelial function is known to be affected, lymphocyte function in obstructive jaundice remains poorly understood.

Purpose of the Study:

  • To investigate in vitro lymphocyte function in a canine model of obstructive jaundice.
  • To determine if impaired lymphocyte function contributes to sepsis-related complications.

Main Methods:

  • Chronic common bile duct ligation was used to induce obstructive jaundice in eight dogs.
  • In vitro lymphocyte studies, including natural killer cell activity and T lymphocyte responses to mitogens, were conducted at 2 and 3 weeks.
  • Serum immunoglobulin levels and the presence of immunosuppressive factors were also assessed.

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Main Results:

  • No abnormalities were observed in natural killer cell function.
  • T and B lymphocyte numbers and subsets remained unchanged.
  • T lymphocyte responses to mitogens were not significantly reduced, and no immunosuppressive factors were detected in serum.

Conclusions:

  • Impaired lymphocyte function does not appear to be a significant factor in the increased sepsis risk associated with obstructive jaundice.
  • Further research may focus on other mechanisms contributing to sepsis in this condition.