What is Interleukin-6 (IL-6)? Interleukin-6 (IL-6) is a pro-inflammatory cytokine and anti-inflammatory myokine produced by various cells, including immune cells, fibroblasts, and endothelial cells. It plays a key role in the immune response, inflammation, and hematopoiesis. Measuring IL-6 levels in blood is used to assess inflammatory conditions, infections, autoimmune diseases, and certain cancers, and to monitor disease severity, such as in sepsis or cytokine release syndrome.
Definition: The Interleukin-6 Unit Converter converts IL-6 concentrations between various units, enabling standardization of laboratory results for clinical and research use.
Purpose: It assists clinicians and researchers in interpreting IL-6 levels across different measurement units (e.g., pg/mL to ng/L), ensuring accurate diagnosis and monitoring of inflammatory and immune-related conditions.
Converting IL-6 concentrations between units is critical for:
Elevated Levels: High IL-6 levels are associated with acute and chronic inflammatory conditions, such as sepsis, rheumatoid arthritis, inflammatory bowel disease, and certain cancers (e.g., multiple myeloma). Elevated IL-6 is also a marker of severe infections, including COVID-19, and cytokine release syndrome.
Normal Ranges:
Interferences:
Q: Why are there different units for IL-6?
A: Different units reflect varying standards; pg/mL is commonly used in clinical practice, while ng/L and pg/L may be used in research or specific assays.
Q: What is a normal IL-6 level?
A: Normal serum IL-6 is typically < 7 pg/mL (< 0.007 ng/mL). Levels vary by context—consult a healthcare provider for interpretation.
Q: Can this converter be used for other cytokines?
A: No, this converter is specific to IL-6; other cytokines have different conversion factors—consult a healthcare provider for accuracy.