Evaluation of neopterin levels and kynurenine pathway in patients with acute coronary syndrome
Background Coronary atherosclerosis is the leading cause of coronary artery disease. Several investigations have indicated that tear-sensitive plaques contain macrophages and T cells. Neopterin is an essential cellular immune response biomarker. The main goal of this study was to see if there were a...
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| Format: | Article |
| Language: | English |
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Korean Society of Critical Care Medicine
2023-08-01
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| Series: | Acute and Critical Care |
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| Online Access: | http://www.accjournal.org/upload/pdf/acc-2023-00024.pdf |
| _version_ | 1797692805894635520 |
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| author | Ibrahim Kember Sonia Sanajou Bilge Kilicarslan Gözde Girgin Terken Baydar |
| author_facet | Ibrahim Kember Sonia Sanajou Bilge Kilicarslan Gözde Girgin Terken Baydar |
| author_sort | Ibrahim Kember |
| collection | DOAJ |
| description | Background Coronary atherosclerosis is the leading cause of coronary artery disease. Several investigations have indicated that tear-sensitive plaques contain macrophages and T cells. Neopterin is an essential cellular immune response biomarker. The main goal of this study was to see if there were any changes in biomarkers like unconjugated pteridines, neopterin, and biopterin, as well as kynurenine pathway enzymes like indoleamine 2,3-dioxygenase (IDO), which catalyzes the rate-limiting step in tryptophan degradation, in patients with the acute coronary syndrome (ACS) caused by angiographic atherosclerosis. Methods High-performance liquid chromatography was used to determine the amounts of neopterin, biopterin, and creatinine in urine samples, as well as tryptophan and kynurenine in serum samples. The enzyme-linked immunosorbent assay was used to assess the amounts of neopterin in serum samples. The measured parameters were evaluated between ACS patients and controls. Results The measured levels of neopterin, biopterin and the kynurenine to tryptophan ratio reflecting IDO activity, and the specifically known biomarkers such as cardiac troponin, creatine kinase, myoglobin, and natriuretic peptides are statistically higher in ACS patients compared to control subjects. On the other hand, the measured parameters are inadequate to classify the conventional kinds of ACS, ST-elevation- and non-ST-elevation- myocardial infarction. Conclusions The study found that determining and using neopterin and IDO parameters as biomarkers in individuals with the ACS can support traditional biomarkers. However, it can be concluded that evaluating pteridine biomarkers solely have no privilege to clinical findings in ACS diagnosis and classification. |
| first_indexed | 2024-03-12T02:33:52Z |
| format | Article |
| id | doaj.art-7a7839d4d7144a76b9352c2a21990a82 |
| institution | Directory Open Access Journal |
| issn | 2586-6052 2586-6060 |
| language | English |
| last_indexed | 2024-03-12T02:33:52Z |
| publishDate | 2023-08-01 |
| publisher | Korean Society of Critical Care Medicine |
| record_format | Article |
| series | Acute and Critical Care |
| spelling | doaj.art-7a7839d4d7144a76b9352c2a21990a822023-09-05T04:11:25ZengKorean Society of Critical Care MedicineAcute and Critical Care2586-60522586-60602023-08-0138332533210.4266/acc.2023.000241474Evaluation of neopterin levels and kynurenine pathway in patients with acute coronary syndromeIbrahim Kember0Sonia Sanajou1Bilge Kilicarslan2Gözde Girgin3Terken Baydar4 Department of Toxicology, Faculty of Pharmacy, Hacettepe University, Ankara, Türkiye Department of Toxicology, Faculty of Pharmacy, Hacettepe University, Ankara, Türkiye Department of Toxicology, Faculty of Pharmacy, Hacettepe University, Ankara, Türkiye Department of Toxicology, Faculty of Pharmacy, Hacettepe University, Ankara, Türkiye Department of Toxicology, Faculty of Pharmacy, Hacettepe University, Ankara, TürkiyeBackground Coronary atherosclerosis is the leading cause of coronary artery disease. Several investigations have indicated that tear-sensitive plaques contain macrophages and T cells. Neopterin is an essential cellular immune response biomarker. The main goal of this study was to see if there were any changes in biomarkers like unconjugated pteridines, neopterin, and biopterin, as well as kynurenine pathway enzymes like indoleamine 2,3-dioxygenase (IDO), which catalyzes the rate-limiting step in tryptophan degradation, in patients with the acute coronary syndrome (ACS) caused by angiographic atherosclerosis. Methods High-performance liquid chromatography was used to determine the amounts of neopterin, biopterin, and creatinine in urine samples, as well as tryptophan and kynurenine in serum samples. The enzyme-linked immunosorbent assay was used to assess the amounts of neopterin in serum samples. The measured parameters were evaluated between ACS patients and controls. Results The measured levels of neopterin, biopterin and the kynurenine to tryptophan ratio reflecting IDO activity, and the specifically known biomarkers such as cardiac troponin, creatine kinase, myoglobin, and natriuretic peptides are statistically higher in ACS patients compared to control subjects. On the other hand, the measured parameters are inadequate to classify the conventional kinds of ACS, ST-elevation- and non-ST-elevation- myocardial infarction. Conclusions The study found that determining and using neopterin and IDO parameters as biomarkers in individuals with the ACS can support traditional biomarkers. However, it can be concluded that evaluating pteridine biomarkers solely have no privilege to clinical findings in ACS diagnosis and classification.http://www.accjournal.org/upload/pdf/acc-2023-00024.pdfacute coronary syndromeindoleamine 2,3-dioxygenasekynurenineneopterinst elevation myocardial infarctiontroponintryptophan |
| spellingShingle | Ibrahim Kember Sonia Sanajou Bilge Kilicarslan Gözde Girgin Terken Baydar Evaluation of neopterin levels and kynurenine pathway in patients with acute coronary syndrome Acute and Critical Care acute coronary syndrome indoleamine 2,3-dioxygenase kynurenine neopterin st elevation myocardial infarction troponin tryptophan |
| title | Evaluation of neopterin levels and kynurenine pathway in patients with acute coronary syndrome |
| title_full | Evaluation of neopterin levels and kynurenine pathway in patients with acute coronary syndrome |
| title_fullStr | Evaluation of neopterin levels and kynurenine pathway in patients with acute coronary syndrome |
| title_full_unstemmed | Evaluation of neopterin levels and kynurenine pathway in patients with acute coronary syndrome |
| title_short | Evaluation of neopterin levels and kynurenine pathway in patients with acute coronary syndrome |
| title_sort | evaluation of neopterin levels and kynurenine pathway in patients with acute coronary syndrome |
| topic | acute coronary syndrome indoleamine 2,3-dioxygenase kynurenine neopterin st elevation myocardial infarction troponin tryptophan |
| url | http://www.accjournal.org/upload/pdf/acc-2023-00024.pdf |
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