• Mustafa A Tatlisu, Adem Atici, Fatma Betul Ozcan, Eray Kirac, Omer Faruk Baycan, and Mustafa Caliskan.
• Department of Cardiology, Istanbul Medeniyet University Faculty of Medicine, Istanbul, 34722, Turkey. Electronic address: adem.tatlisu@medeniyet.edu.tr.
• Am. J. Med. Sci. 2022 Nov 1; 364 (5): 595600595-600.

BackgroundThe tumor necrosis factor-like weak inducer of apoptosis (TWEAK) is one of the inflammatory mediators contributing to the atherosclerotic process. TWEAK has been studied in patients with chronic kidney disease (CKD), and it has demonstrated that its level declines as estimated glomerular filtration rate (eGFR) decreases. Most studies have found that the decreased TWEAK levels were seen in atherosclerosis and associated with plaque calcification. The objective of this prospective study was to clarify any relationship between coronary slow-flow (CSF) and TWEAK levels in patients with CKD under conservative treatment.MethodsThis prospective study included 93 consecutive patients with CKD (mean creatinine level was 1.8±0.4 mg/dL) undergoing invasive coronary angiography (ICA) for any reason except for acute coronary syndromes from May 2019 to March 2020. A total of 93 patients were divided into two groups concerning having CSF (n=35) or no-CSF (n=58).ResultsPatients with CSF had higher TWEAK levels than those without CSF (695.2± 225.2 vs. 465.8±157.6, p<0.001). As the number of coronary arteries with slow flow increased, TWEAK levels increased statistically significantly (r:0.635/ p<0.001). Receiver operating characteristic (ROC) analysis showed that TWEAK levels of 516 pg/mL could predict CSF in patients with CKD.ConclusionsOur study has shown that plasma TWEAK levels were an independent predictor for CSF in patients with CKD. In addition, our study has found that elevated TWEAK levels may not reflect the healthy arteries as it was hypothesized in the past.Copyright © 2022 Southern Society for Clinical Investigation. Published by Elsevier Inc. All rights reserved.

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