Retatrutide lowers renal HIF-1a in diabetic rats without histology benefit

The wire

1. 01Male Sprague-Dawley rats in four groups received subcutaneous retatrutide for 21 days; HIF-1a was significantly lower in treated diabetic animals (p=0.020), while TNF-a and histopathology scores showed no confirmed differences.
2. 02Damage scores trended lower with treatment (Cliff's delta 0.90 cortex, 0.85 medulla) but did not survive family-wise error correction; the authors report no sign of intrinsic renal toxicity.
3. 03The acute streptozotocin model reflects insulin-deficient rather than type 2 diabetes, and the authors call for chronic models, longer dosing and refined regimens before any renoprotection claim.

From the source

Retatrutide treatment in streptozotocin-induced diabetic rats: renal inflammatory cytokines, HIF‑1α expression, and histopathological injury profile

Journal of molecular histology · 2026 Oct 15 · Keskin U, Altın E, Özatik FY et al.