Blood flow rheology

Blood flow rheology, or hemorheology, refers to the study of the flow properties of blood and its elements, including plasma and cellular components like red blood cells, white blood cells, and platelets. It is not a single molecular target, such as a receptor or enzyme, but rather a complex physiological parameter determined by factors like blood viscosity, hematocrit, and the deformability of erythrocytes (StatPearls). In various pathological states, such as diabetes and peripheral vascular disease, blood rheology is often impaired, leading to increased resistance to flow and reduced oxygen delivery to tissues (PubMed). Therapeutic agents classified as hemorheologicals, such as pentoxifylline, aim to improve microcirculatory blood flow by enhancing the flexibility of red blood cells and reducing plasma protein-mediated aggregation (NIH). Because it describes a systemic physical property rather than a discrete biological molecule, it is considered a physiological state or clinical endpoint rather than a conventional drug target.

Other names

HemorheologyBlood viscosityBlood flow propertiesHemodynamics

Hemorheological agents improve blood flow by increasing erythrocyte deformability, reducing blood viscosity, and inhibiting platelet aggregation and thrombus formation.