← brief for 2026-09-11 · Slowing decline

Association of Serum 1,25-Dihydroxyvitamin D Levels with Erythropoietin Resistance Index-Based Relative Erythropoiesis-Stimulating Agent Hyporesponsiveness in Pre-Dialysis Chronic Kidney Disease

Key takeaways

Many people with kidney disease get anemia, meaning low red blood cells, and take drugs that push the body to make more. Some people respond poorly to those drugs. This study checked whether a low level of the active form of vitamin D in the blood goes along with that poor response, in people who are not yet on dialysis. It is observational, so it shows a link, not proof that vitamin D is the reason.

Who did this work

Jun Yeong Kim (Pusan National University Yangsan Hospital) · Dong Won Lee (Pusan National University Yangsan Hospital) · Soo Bong Lee (Pusan National University Yangsan Hospital) · Il Young Kim (Pusan National University Yangsan Hospital)

Source

Paper · OpenAlex, Kidney disease concept sweep (verified C2778653478) · 2026-09-10
https://doi.org/10.3390/ijms27188044