Physiological blood components

Physiological blood components encompass the diverse array of cellular and acellular elements found within the circulatory system, including erythrocytes (red blood cells), leukocytes (white blood cells), thrombocytes (platelets), and plasma proteins such as albumin and globulins (StatPearls, 2023). These components are essential for life-sustaining processes like oxygen transport, immune defense, and hemostasis (NHLBI, 2023). While these elements are vital, the term itself does not refer to a single therapeutic target; instead, it represents a complex biological medium containing numerous specific targets that are individually addressed by various pharmacological agents (PubMed, 2021). Drugs interacting with these components range from anticoagulants and hematinics to biologics and plasma volume expanders (StatPearls, 2023). For example, anticoagulants like heparin target specific clotting factors within the plasma, while erythropoietin-stimulating agents act on the bone marrow to increase red blood cell production (StatPearls, 2023). Because this is a broad category rather than a specific molecule, it is generally considered an incorrect or overly broad designation for a drug target in a structured database.

Other names

Blood constituentsBlood elementsHematological componentsCirculating blood components

Drugs modulate physiological blood components through various mechanisms, such as inhibiting coagulation enzymes (e.g., thrombin), stimulating the bone marrow to produce specific cell lines (e.g., erythropoiesis), or serving as replacement therapy for deficient plasma proteins (StatPearls, 2023).