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Cited by 296

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Modulation of adjuvant arthritis by endogenous nitric oxide

Open access
Ialenti, Armando, Moncada, Salvador, Di Rosa, Massimo·1993·British Journal of Pharmacology

Abstract

The role of endogenous nitric oxide (NO) in adjuvant arthritis in Lewis rats has been studied by use of l‐arginine, the amino acid from which NO is synthesized, and N G‐nitro‐l‐arginine methyl ester (l‐NAME), an inhibitor of NO synthase. Prolonged modulation (35 days) of the l‐arginine: NO pathway in rats was achieved by dissolving test compounds in the drinking water (l‐arginine: 3, 10 and 30 mg ml−1; l‐NAME: 0.1, 1 and 10 mg ml−1). Arthritis was exacerbated by l‐arginine and suppressed by l‐NAME in a dose‐related fashion. Combined treatment with l‐NAME (1 mg ml−1) and l‐arginine (30 mg ml−1) did not modify the arthritis. Reduced weight gain, which is a feature of adjuvant arthritis, was modified by these compounds so that l‐arginine reduced weight gain whereas l‐NAME increased weight gain compared with that in control animals. d‐Arginine (30 mg ml−1), N G‐nitro‐d‐arginine methyl ester (d‐NAME: 1 mg ml−1) and l‐lysine (30 mg ml−1), an amino acid not involved in the generation of NO, were without effect on either arthritis or body weight gain. . Antigen‐stimulated proliferation of T‐lymphocytes as well as generation of nitrite (NO 2−) and release of acid phosphatase from macrophages were all enhanced in l‐arginine‐treated arthritic rats and reduced in l‐NAME‐treated animals. These results suggest that endogenous NO modulates adjuvant arthritis, possibly by interfering with the activation of T‐lymphocytes and/or macrophages.

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Crossref · 10.1111/j.1476-5381.1993.tb13868.x

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Metadata

Authors
Ialenti, A., Moncada, S., & Di Rosa, M.
Venue
British Journal of Pharmacology
Publisher
Wiley
Published
1993-10
Volume
110
Issue
2
Pages
701-706
ISSN
  • 0007-1188 (ISSN-L)
  • 1476-5381
OpenAlex
W2047076468
Cited by
296
References
23
FWCI
17.09
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: Modulation of adjuvant arthritis by endogenous nitric oxide. https://app.cochat.ai/papers/10.1111/j.1476-5381.1993.tb13868.x
The paper
Ialenti, A., Moncada, S., & Di Rosa, M. (1993). Modulation of adjuvant arthritis by endogenous nitric oxide. British Journal of Pharmacology. https://doi.org/10.1111/j.1476-5381.1993.tb13868.x

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

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