12/12/2025
A new publication strengthens the clinical evidence for proenkephalin A 119-159 ( ) in chronic kidney disease (CKD), opening perspectives beyond the acute kidney injury setting.
A recently published study analyzed more than 4,700 individuals with available penKid values from three independent cohorts, focusing specifically on CKD with a median follow-up of around 8.7 years. These longitudinal data add to the evidence base of penKid and support its potential in future application beyond the AKI indication.
Highlights
• penKid levels are strongly, independently, and inversely associated with renal function across the full range of eGFR categories.
• Higher baseline penKid concentrations predict adverse renal outcomes in CKD patients and provide added value to established clinical variables.
Impact
• Implementing penKid as a diagnostic tool could significantly enhance prognostication and monitoring of CKD.
• penKid levels support risk stratification and guide individualized treatment approaches in patients with CKD.
• Integration of penKid into existing risk tools or future algorithms might improve accuracy and could drive broader adoption in nephrology practice.
Read more https://academic.oup.com/ndt/advance-article-abstract/doi/10.1093/ndt/gfaf214/8292656?redirectedFrom=fulltext&login=false
ABSTRACTBackground and hypothesis. The endogenous opioid proenkephalin (PENK) has been identified as an independent risk marker for acute cardiovascular di