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Cited by 436

The DOI matches its Crossref record; 5 of the 5 references it cites were found in a registry or an index.

Acute Inflammatory Response to Endotoxin in Mice and Humans

Open access
Copeland, Shannon, Warren, H. Shaw, Lowry, Stephen F., Calvano, Steve E., Remick, Daniel·2005·Clinical and Vaccine Immunology

Abstract

Endotoxin injection has been widely used to study the acute inflammatory response. In this study, we directly compared the inflammatory responses to endotoxin in mice and humans.Escherichia coli type O113 endotoxin was prepared under identical conditions, verified to be of equal biological potency, and used for both mice and humans. The dose of endotoxin needed to induce an interleukin-6 (IL-6) concentration in plasma of ∼1,000 pg/ml 2 h after injection was 2 ng/kg of body weight in humans and 500 ng/kg in mice. Healthy adult volunteers were injected intravenously with endotoxin, and male C57BL/6 mice (n= 4 to 12) were injected intraperitoneally with endotoxin. Physiological, hematological, and cytokine responses were determined. Endotoxin induced a rapid physiological response in humans (fever, tachycardia, and slight hypotension) but not in mice. Both mice and humans exhibited lymphopenia with a nadir at 4 h and recovery by 24 h. The levels of tumor necrosis factor (TNF) and IL-6 in plasma peaked at 2 h and returned to baseline levels by 4 to 6 h. IL-1 receptor antagonist RA and TNF soluble receptor I were upregulated in both mice and humans but were upregulated more strongly in humans. Mice produced greater levels of CXC chemokines, and both mice and humans exhibited peak production at 2 h. These studies demonstrate that although differences exist and a higher endotoxin challenge is necessary in mice, there are several similarities in the inflammatory response to endotoxin in mice and humans.

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Crossref · 10.1128/cdli.12.1.60-67.2005

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Metadata

Authors
Copeland, S., Warren, H. S., Lowry, S. F., Calvano, S. E., & Remick, D.
Venue
Clinical and Vaccine Immunology
Published
2005-01
Volume
12
Issue
1
Pages
60-67
ISSN
  • 1556-679X (ISSN-L)
  • 1556-6811
OpenAlex
W2145343991
Cited by
436
References
5
FWCI
2.47
Type
journal article
Language
en
Open access
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CoChat. (2026). Citation check: Acute Inflammatory Response to Endotoxin in Mice and Humans. https://app.cochat.ai/papers/10.1128/cdli.12.1.60-67.2005
The paper
Copeland, S., Warren, H. S., Lowry, S. F., Calvano, S. E., & Remick, D. (2005). Acute Inflammatory Response to Endotoxin in Mice and Humans. Clinical and Vaccine Immunology. https://doi.org/10.1128/cdli.12.1.60-67.2005

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