New hemoglobin substitutes
1Department of Anesthesiology, College of Physicians and Surgeons of Columbia University, New York, NY, USA.
Abstract:
Blood transfusion is an essential and ubiquitous component of medical therapy. Despite careful screening and processing, allogeneic blood still carries a small but definable risk of the transmission of severe viral disease and the induction of immunological reactions. The logistics of its storage and transport continue to present a challenge, and its dependence on human donors will always keep it a scarce resource. It is not surprising that in the latter half of the 20th century efforts to develop blood substitutes have gained increasing momentum.
Related Concept Videos
Hemoglobin
When all four heme groups are bound to oxygen, the resulting molecule is called oxyhemoglobin. As a result, arterial blood...
Oxygen Transport in the Blood
Gene Families
Occasionally these regions can be adapted to take on new roles within the organism, becoming novel genes...
Hypoxia
Types of Hypoxia
There are four primary types of hypoxia, each resulting from a different cause:
1. Anemic hypoxia: This type occurs due to insufficient oxygen delivery caused by a lack of red blood cells (RBCs) or RBCs with abnormal or...
Erythropoiesis
Blood Transfusion
Blood Transfusion Overview
A blood transfusion is a medical procedure used to replace blood lost due to injury, surgery, or to treat conditions such as anemia or cancer. During a transfusion, donor blood is...

