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Serum copeptin levels in stage 3–4 chronic kidney disease and maintenance hemodialysis: a cross-sectional study

Key takeaways

Researchers measured copeptin, a blood marker that rises when the body puts out more of the water-saving hormone vasopressin, in people with stage 3 and 4 kidney disease and in people on dialysis. They compared levels across those groups at a single point in time. That design can show that the marker tracks with how far kidney disease has gone, but it cannot show that copeptin itself does any damage.

Who did this work

Mesude Seda Aydoğdu (Malatya Turgut Özal Üniversitesi) · Ramazan Ulu (University of Turku) · Meltem Yardım (Necmettin Erbakan University) · Süleyman Aydın (University of Turku)

Source

Paper · OpenAlex, Kidney disease concept sweep (verified C2778653478) · 2026-09-04
https://doi.org/10.1186/s12882-026-05301-5