• Yeldar Baiken, Zhannur Markhametova, Assem Ashimova, Ainur Zhulamanova, Assem Nogaibayeva, Larissa Kozina, Bakhyt Matkarimov, Bauyrzhan Aituov, Abduzhappar Gaipov, and Askhat Myngbay.
• School of Engineering and Digital Sciences, Nazarbayev University, Astana 010000, Kazakhstan.
• Medicina (Kaunas). 2023 Mar 24; 59 (4).

AbstractBackground: Chronic kidney disease (CKD) has various etiologies, making it impossible to fully understand its complex pathophysiology. Elevated levels of plasma creatinine, proteinuria, and albuminuria and declined eGFR are traits observed in CKD patients. The current study attempts to highlight the collagen triple helix repeat containing 1 (CTHRC1) protein as a putative blood biomarker for CKD in addition to existing recognized indicators of CKD progression. Methods: A total of 26 CKD patients and 18 healthy controls were enrolled in this study. Clinical characteristics and complete blood and biochemical analyses were collected, and human ELISA kits were used to detect possible CKD biomarkers. Results: The study's findings showed that CTHRC1 correlates with key clinical markers of kidney function such as 24 h urine total protein, creatinine, urea, and uric acid. In addition, CTHRC1 demonstrated a strong significant difference (p ≤ 0.0001) between the CKD and control group. Conclusions: Our research demonstrates that the plasma level of CTHRC1 can distinguish between those with CKD and healthy patients. Plasma CTHRC1 levels may aid in the diagnosis of CKD given the current state of knowledge, and these results call for further investigation in a wider, more diverse patient group.

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