Cited by 94Gastrointestinal motility and disordersClinical Nutrition and GastroenterologySepsis Diagnosis and Treatment

The Effect of Glucocorticoid Administration on Bacterial Translocation: Evidence for an Acquired Mucosal Immunodeficient State

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ALVERDY, JOHN, AOYS, ERIC·1991·Annals of Surgery

Abstract

Adherence of bacteria to intestinal epithelial cells may be the crucial initiating event for translocation and is normally prevented by both specific (secretory IgA) and nonspecific (mucus, bacterial antagonism, desquamation) mucosal defense mechanisms. The purpose of this study was to examine the effect of dexamethasone administration on mucosal immunity; specifically bacterial adherence and IgA. Twenty Fischer rats were randomly assigned to two groups of 10 animals each. Group I received 0.5 mL saline injection intraperitoneally (IP); and group II, 0.8 mg/150 g body weight dexamethasone IP per day for 2 consecutive days. The cecum mesenteric lymph nodes, and bile were aseptically collected, and bacterial adherence, bacterial translocation, and IgA concentration were determined. Results indicate that, compared with saline-treated animals, dexamethasone-treated animals had a fall in IgA (54 +/- 24 versus 232 +/- 41 micrograms/mg protein), an increase in bacterial adherence (8.2 +/- 0.5 versus 3.4 +/- 0.6 cfu (log10)/g cecum), and an increased incidence of bacterial translocation to the mesenteric lymph nodes (60% versus 0%). These data suggest that glucocorticoids may promote bacterial translocation by impairment of mucosal IgA synthesis.

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  • Many daily therapies and interventions in intensive care increase intestinal permeability, bacterial translocation, and bacterial virulence.

    “Many daily therapies and interventions in intensive care increase intestinal permeability (eg, nonsteroidal anti-inflammatory drugs109 and parenteral feeding55,82), bacterial translocation (eg, antibiotics,65 corticosteroids,110 and opiates111), and bacterial virulence (eg, opiates19 and catecholamines22,51).”

    From The microbiome and critical illness (2016) · cites this paper as [110]

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Authors
ALVERDY, J., & AOYS, E.
Affiliations
University of Illinois Chicago (US)
Venue
Annals of Surgery
Published
1991-12
Volume
214
Issue
6
Pages
719-723
ISSN
0003-4932 (ISSN-L)
OpenAlex
W2066236615
Cited by
94
References
22
Citations by year
2026: 1 · 2025: 3 · 2024: 1 · 2023: 1 · 2022: 3 · 2021: 2 · 2020: 2 · 2019: 3 · 2018: 1 · 2017: 3 · 2016: 3 · 2015: 2 · 2012: 3
FWCI
9.01
Type
journal article
Language
en
Open access
Locations
  • Annals of Surgery (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Gastroenterology › Gastrointestinal motility and disorders
  • Health Sciences › Nursing › Nutrition and Dietetics › Clinical Nutrition and Gastroenterology
  • Health Sciences › Medicine › Epidemiology › Sepsis Diagnosis and Treatment
Keywords
glucocorticoids, dexamethasone, bacterial translocation, secretory IgA, bacterial adhesion, intestinal mucosal immunity, mesenteric lymph nodes, cecum, bile, mucosal defense mechanisms, immunosuppression
MeSH terms
Animals, Bacterial Adhesion, Cecum, Dexamethasone, Female, Immunoglobulin A, Secretory, Intestinal Mucosa, Lymph Nodes, Mesentery, Rats, Inbred F344, Bacterial Physiological Phenomena, Rats

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