Ying-blood

Ying-blood (营血) is a foundational physiological and pathological concept in Traditional Chinese Medicine (TCM), primarily associated with the Four Levels (Wei-Qi-Ying-Xue) diagnostic framework for warm febrile diseases. It refers to the nutritive (Ying) and blood (Xue) levels, representing the deeper stages of disease progression where pathogens have invaded the internal systems, affecting the blood, nutritive essence, and mental stability. While 'Ying-blood' is not a single molecular target or receptor in Western pharmacology, modern integrative research often correlates Ying-blood syndromes with clinical conditions such as systemic inflammatory response syndrome (SIRS), sepsis, and microcirculatory disturbances. Therapeutic interventions targeting the Ying-blood level, such as the formula Qing Ying Tang, aim to clear pathogenic heat and protect the body's 'Yin' fluids to prevent organ failure and delirium. Modern studies have identified that herbs targeting these syndromes often modulate cytokine-mediated signaling pathways, including the JAK/STAT and NF-kappaB cascades, to mitigate systemic inflammation and restore hematological homeostasis.

Other names

Nutritive bloodYing bloodYing levelYing-XueNutritive-blood levelYing-blood syndrome

In Traditional Chinese Medicine (TCM), therapeutic strategies for Ying-blood focus on clearing heat to protect Yin fluids, cooling the blood to prevent extravasation (bleeding), and nourishing the blood to restore nutritive essence. Modern pharmacological studies suggest these actions correlate with the inhibition of pro-inflammatory pathways like JAK/STAT and NF-kappaB, as well as the regulation of hematopoietic growth factors and microcirculation.