William Aird/X
Sep 2, 2025, 08:49
Why Polycythemia Vera Doesn’t Raise EPO Levels Explained by William Aird
William Aird, Professor of Medicine at Harvard Medical School, shared a post on X:
“Why PV Does Not Increase EPO
In PV, renal O2-sensing cells sit in a high-flow, low-extraction zone. Extra O₂ content outweighs modest viscosity effects, so HIF stays off & EPO stays low. The ‘falling off the curve’ in DO₂ vs Hct doesn’t hit them, unless Hct gets extremely high.”
Learn the latest with Hemostasis Today.
-
Feb 16, 2026, 13:56Chokri Ben Lamine: Evans Syndrome Key Clinical Insights
-
Feb 16, 2026, 13:51Adela Castro: 2025 EULAR Guidelines Key Updates in Lupus Nephritis
-
Feb 16, 2026, 13:50Rosa Hart: Stop Waiting For A Seat And Start Shaping The Table
-
Feb 16, 2026, 13:49Harprit Singh: India’s Silent Transfusion Gap – What Policymakers Need to Know in 2026
-
Feb 16, 2026, 13:46A Conversation on Gene Therapy in Hemophilia B – Irish Haemophilia Society
-
Feb 16, 2026, 13:45Nathan Connell Speaks on Gender Diversity In Haemostasis Care at EAHAD 2026
-
Feb 16, 2026, 13:40David McIntosh: Concrete Performance Targets for Rare Disease Patients
-
Feb 16, 2026, 13:40Ramy Abdelnaby: Exploring The Timing of Antiplatelet Administration In Minor Stroke Post-Thrombolysis
-
Feb 16, 2026, 13:33Anne Hege Aamodt Congratulates Gisle Berg Helland on PhD Defense About Stroke Outcome MRI and ML Prediction