The DOI matches its Crossref record; 3 of the 3 references it cites were found in a registry or an index.
Immune activation and degradation of tryptophan in coronary heart disease
Abstract
Background Inflammation and immune activation appear to be important in the pathogenesis of coronary heart disease (CHD). Cytokine interferon‐γ, which is released during cell‐mediated immune responses, induces indoleamine (2,3)‐dioxygenase (IDO), an enzyme degrading tryptophan to kynurenine. Therefore, immune stimulation is commonly associated with an increased kynurenine to tryptophan ratio (kyn trp−1) indicative for activated indoleamine (2,3)‐dioxygenase and a measurable decline of tryptophan. Methods Blood concentrations of kynurenine and free tryptophan and the kynurenine to tryptophan ratio were examined in 35 patients with coronary heart disease verified by coronary angiography and compared with healthy controls. Patients were observed before percutaneus transluminal coronary angioplasty (21 patients: one with artery disease, nine with 2‐ or 3‐artery disease, and five with restenosis). Results and conclusions Decreased tryptophan concentrations were found in a significant proportion of coronary heart disease patients and coincided with increased kyn trp−1 and also with increased neopterin concentrations, indicating an activated cellular immune response. We conclude that in coronary heart disease immune activation is associated with an increased rate of tryptophan degradation and thereby lowered tryptophan levels. Results may provide a basis for a better understanding of the pathogenesis of mood disturbances and depression in coronary heart disease patients.
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Citations
Cites
Inflammation and Atherosclerosis
Libby, P., Ridker, P. M., & Maseri, A. (2002) · Circulation · doi:10.1161/hc0902.104353 · Cited by 7,724
Ridker, P. M., Hennekens, C. H., Buring, J. E., & Rifai, N. (2000) · New England Journal of Medicine · doi:10.1056/nejm200003233421202 · Cited by 5,850
Capuron, L., Ravaud, A., Neveu, P. J., Miller, A. H., Maes, M., & Dantzer, R. (2002) · Molecular Psychiatry · doi:10.1038/sj.mp.4000995 · Cited by 473 · cited 1×
“A relationship between lower tryptophan levels and depression was reported recently [ 30 ].”
Background
Cited by
Monitoring tryptophan metabolism in chronic immune activation
Schröcksnadel, K., Wirleitner, B., Winkler, C., & Fuchs, D. (2006) · Clinica Chimica Acta · doi:10.1016/j.cca.2005.06.013 · Cited by 551
Self-citationAron-Wisnewsky, J., Warmbrunn, M. V., Nieuwdorp, M., & Clément, K. (2021) · Gastroenterology · doi:10.1053/j.gastro.2020.10.057 · Cited by 452
Depression and cardiac disease: epidemiology, mechanisms, and diagnosis.
Huffman, J. C., Celano, C. M., Beach, S. R., Motiwala, S. R., & Januzzi, J. L. (2013) · Cardiovascular Psychiatry and Neurology · doi:10.1155/2013/695925 · Cited by 445
Tryptophan-kynurenine pathway is dysregulated in inflammation and immune activation
Zou, M.-H. (2015) · Frontiers in Bioscience · doi:10.2741/4363 · Cited by 361
Godbout, J. P., Moreau, M., Lestage, J., Chen, J., Sparkman, N. L., Connor, J. O., Castanon, N., Kelley, K. W., Dantzer, R., & Johnson, R. W. (2008) · Neuropsychopharmacology · doi:10.1038/sj.npp.1301649 · Cited by 299
Metadata
- Authors
- Wirleitner, B., Rudzite, V., Neurauter, G., Murr, C., Kalnins, U., Erglis, A., Trusinskis, K., & Fuchs, D.
- Venue
- European Journal of Clinical Investigation
- Publisher
- Wiley
- Published
- 2003-06-19
- Volume
- 33
- Issue
- 7
- Pages
- 550-554
- ISSN
- 0014-2972 (ISSN-L)
- 1365-2362
- OpenAlex
- W2038012068
- Cited by
- 190
- References
- 3
- FWCI
- 1.61
- Type
- journal article
- Language
- en
- Open access
- closed
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- Wirleitner, B., Rudzite, V., Neurauter, G., Murr, C., Kalnins, U., Erglis, A., Trusinskis, K., & Fuchs, D. (2003). Immune activation and degradation of tryptophan in coronary heart disease. European Journal of Clinical Investigation. https://doi.org/10.1046/j.1365-2362.2003.01186.x
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