Changes of Immunoglobulin Concentrations in the Bile after Proximal Gastric Vagotomy in Rats

G. Enders Institute for Surgical Research, Dept. of Surgery, Munich, FRG; Max-von-Pettenkofer Institute for Microbiology, University of Munich, Munich, FRG

R. Ruckdeschel Institute for Surgical Research, Dept. of Surgery, Munich, FRG; Max-von-Pettenkofer Institute for Microbiology, University of Munich, Munich, FRG

R. Teichmann Institute for Surgical Research, Dept. of Surgery, Munich, FRG; Max-von-Pettenkofer Institute for Microbiology, University of Munich, Munich, FRG

W. Brendel Institute for Surgical Research, Dept. of Surgery, Munich, FRG; Max-von-Pettenkofer Institute for Microbiology, University of Munich, Munich, FRG

Abstract

We have investigated the influence of proximal gastric vagotomy in rats (PGV) on the immunoglobulin concentration in the serum, bile, and intestinal fluid. Clear differences for serum IgA were noted: after PGV, rats had 1.5 mg/ml IgA in contrast to only 0.25 mg/ml in sham-operated controls. The other serum immunoglobulins remained unchanged. Bile immunoglobulins were elevated in PGV rats with regard to IgA, IgG1, IgG2a, and IgG2b. In addition, PGV rats had higher IgA, IgG1, IgG2a, and IgG2b concentrations in the intestinal fluid than controls. An explanation for these high Ig concentrations in the secretions might be the challenge by intestinal (microbial) antigens and, perhaps, mucosal inflammation with changes in the permeability. Indications for the former were the increase in the number of bacteria after PGV.

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Changes of Immunoglobulin Concentrations in the Bile after Proximal Gastric Vagotomy in Rats

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Changes of Immunoglobulin Concentrations in the Bile after Proximal Gastric Vagotomy in Rats

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