The DOI matches its Crossref record; 3 of the 3 references it cites were found in a registry or an index.
Increased expression of an inducible isoform of nitric oxide synthase and the formation of peroxynitrite in colonic mucosa of patients with active ulcerative colitis
Open accessAbstract
Background —Increased production of reactive metabolites of oxygen and nitrogen has been implicated in chronic inflammation of the gut. The object of this study was to examine the magnitude and location of nitric oxide synthase (NOS) activity and peroxynitrite formation in the colonic mucosa of patients with ulcerative colitis in relation to the degree of inflammation. Subjects —Thirty three patients with active ulcerative colitis (17 with mild or moderate inflammation, 16 with severe inflammation). Methods —Inducible NOS activity was determined in the colonic mucosa by measuring the conversion of l -arginine to citrulline in the absence of calcium. The localisation of NOS and nitrotyrosine immunoreactivity was assessed immunohistochemically using the labelled streptavidin biotin method. Results —Inducible NOS activity increased in parallell with the degree of inflammation of the mucosa. Expression of inducible NOS was found not only in the lamina propria, but also in the surface of the epithelium. Peroxynitrite formation as assessed by nitrotyrosine staining was frequently observed in the lamina propria of actively inflamed mucosa. Conclusions —Nitric oxide and peroxynitrite formation may play an important role in causing irreversible cellular injury to the colonic mucosa in patients with active ulcerative colitis.
Overview
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Citations
Cites
Beckman, J. S., Beckman, T. W., Chen, J., Marshall, P. A., & Freeman, B. A. (1990) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.87.4.1620 · Cited by 7,029
The L-Arginine-Nitric Oxide Pathway
Epstein, F. H., Moncada, S., & Higgs, A. (1993) · New England Journal of Medicine · doi:10.1056/nejm199312303292706 · Cited by 6,678
Greatly increased luminal nitric oxide in ulcerative colitis
Lundberg, J. O. N., Lundberg, J. M., Alving, K., & Hellström, P. M. (1994) · The Lancet · doi:10.1016/s0140-6736(94)90460-x · Cited by 266
Cited by
Protein carbonyl groups as biomarkers of oxidative stress
Dalle-Donne, I., Rossi, R., Giustarini, D., Milzani, A., & Colombo, R. (2003) · Clinica Chimica Acta · doi:10.1016/s0009-8981(03)00003-2 · Cited by 2,349
Peroxynitrite: biochemistry, pathophysiology and development of therapeutics
Szabó, C., Ischiropoulos, H., & Radi, R. (2007) · Nature Reviews Drug Discovery · doi:10.1038/nrd2222 · Cited by 2,134
Intestinal Inflammation and Cancer
Ullman, T. A., & Itzkowitz, S. H. (2011) · Gastroenterology · doi:10.1053/j.gastro.2011.01.057 · Cited by 1,119
Workgroup Report: Drinking-Water Nitrate and Health—Recent Findings and Research Needs
Ward, M. H., deKok, T. M., Levallois, P., Brender, J., Gulis, G., Nolan, B. T., & VanDerslice, J. (2005) · Environmental Health Perspectives · doi:10.1289/ehp.8043 · Cited by 891
Cosnes, J., Nion-Larmurier, I., Beaugerie, L., Afchain, P., Tiret, E., & Gendre, J.-P. (2005) · Gut · doi:10.1136/gut.2004.045294 · Cited by 657
Metadata
- Authors
- Kimura, H., Hokari, R., Miura, S., Shigematsu, T., Hirokawa, M., Akiba, Y., Kurose, I., Higuchi, H., Fujimori, H., Tsuzuki, Y., Serizawa, H., & Ishii, H.
- Venue
- Gut
- Publisher
- BMJ
- Published
- 1998-02-01
- Volume
- 42
- Issue
- 2
- Pages
- 180-187
- ISSN
- 0017-5749 (ISSN-L)
- 1468-3288
- OpenAlex
- W2151312624
- Cited by
- 250
- References
- 3
- FWCI
- 9.86
- Type
- journal article
- Language
- en
- Open access
- bronze
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
How to cite
Cite CoChat for the checks on this page, and the paper for its own findings.
- This page
- CoChat. (2026). Citation check: Increased expression of an inducible isoform of nitric oxide synthase and the formation of peroxynitrite in colonic mucosa of patients with active ulcerative colitis. https://app.cochat.ai/papers/10.1136/gut.42.2.180
- The paper
- Kimura, H., Hokari, R., Miura, S., Shigematsu, T., Hirokawa, M., Akiba, Y., Kurose, I., Higuchi, H., Fujimori, H., Tsuzuki, Y., Serizawa, H., & Ishii, H. (1998). Increased expression of an inducible isoform of nitric oxide synthase and the formation of peroxynitrite in colonic mucosa of patients with active ulcerative colitis. Gut. https://doi.org/10.1136/gut.42.2.180
Data sources
Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.