William Aird/X
Jul 7, 2026, 20:59
William Aird: An Unlucky Turn Into the Renal Artery
William Aird, Professor of Medicine at Harvard Medical School, shared a post onΒ X:
“An unlucky turn (… into the renal artery)
Every red cell is on a road trip.
About 20% of cardiac output goes to the kidneys, so sooner or later many RBCs take the renal artery exit.
Bad luck.
Down in the renal medulla, the environment becomes intensely hypertonic.
The cell shrinks, concentrates, rehydrates, and keeps moving.
We draw red cells as static biconcave discs.
But their real life is dynamic: squeezing, deforming, exchanging water, crossing gradients, and surviving one hostile microenvironment after another.”

Other posts featuring William Aird on Hemostasis Today.
-
Oct 4, 2026, 05:27Nirali Thakkar: Influenza and Myocardial Infarction An Unexpected Cardiovascular Connection
-
Oct 4, 2026, 05:03Hisham Fahmi: Thromboprophylaxis in Children With ALL A Risk Adapted Approach
-
Oct 4, 2026, 05:00Mary Cushman: Erin Michos Highlights Rising Heart Disease Mortality Among Younger Women in the US
-
Oct 4, 2026, 04:48Liv Tybjærg Nordestgaard: Is Fasting Necessary Before Blood Sampling?
-
Oct 4, 2026, 04:31Sonal Sonu: Gen Z doesnβt just set trends – Gen Z saves lives
-
Oct 4, 2026, 04:22Registration Opens for 2027 Highlights of ASH – American Society of Hematology
-
Oct 4, 2026, 04:06Konstantinos Stavroulakis: Vessel Preparation in Lower Limb Revascularization
-
Oct 4, 2026, 03:34Liselotte Hyveled: Exploring Opportunities to Improve Hemophilia and Sickle Cell Care in Ghana
-
Oct 4, 2026, 02:46Arman Qamar: Drug-Coated Balloons in Coronary Bifurcation PCI