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.
-
Sep 6, 2026, 18:17Aryabhatta Sadhu: Irradiation of Blood Components – From Clinical Indication to Laboratory Release
-
Sep 6, 2026, 18:15Ashenafi Tazebew Amare: A Year of Progress, Transformation and Renewed Commitment
-
Sep 6, 2026, 18:13Emilio Osorio: Can Anticoagulation Be Safely Discontinued After Surgical Left Atrial Appendage Occlusion?
-
Sep 6, 2026, 18:11Razan Alolyani: Our Research on Anticoagulation After Acute Ischemic Stroke Receives 2nd Place
-
Sep 6, 2026, 18:10Chayakrit Krittanawong: Have You Heard of Blood Clots in the Legs?
-
Sep 6, 2026, 18:08Trilok Chand: Microplastics Found in Human Testes and Blood Clots
-
Sep 6, 2026, 18:07Sarah Moharem Elgamal: Cardiovascular Imaging Beyond Anatomy Toward Earlier Risk Prediction
-
Sep 6, 2026, 16:41Christina P.: APS – How it Happens in Your Blood, the Warning Signs, and What to Do about It
-
Sep 6, 2026, 16:33Jose Angel Nicolas Avila: How Tissue Mitochondrial Activity Dictates Macrophage Pool Size