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…levant to allergies and defense against certain parasites. Follow the pathway Dr. Purser explains the relationship between IL-4, IL-13, and IL-4 receptor alpha. He discusses this pathway in allergic and eosinophilic conditions and distingu…

…ammatory conditions but also have normal immune functions. Follow the pathway Dr. Purser connects IL-5 signaling with eosinophilic asthma and other eosinophil-related conditions. Blood eosinophil counts, clinical symptoms, and the underlyi…

…or soluble IL-6 receptors and the gp130 signaling protein. Follow the pathway Dr. Purser discusses classic signaling, trans-signaling, JAK/STAT3, and the liver’s production of C-reactive protein. He also connects homocysteine and oxidative…

…is a chemokine, a signal that guides immune-cell movement. Follow the pathway Dr. Purser connects IL-8 with inflammatory activity in barrier tissues, blood vessels, and lungs. He discusses monocyte activation, homocysteine, and reactive ox…

…lso called sCD25. Its level can reflect T-cell activation. Follow the pathway Dr. Purser discusses sIL2R in sarcoidosis, granuloma formation, and other settings of immune activation. A high level is not specific to sarcoidosis; infection, …

…fated form, DHEAS, are related but different measurements. Follow the pathway Dr. Purser discusses rs2910397 and rs2637125 in this pathway, alongside liver processing, hormone balance, and oxidative stress. Common variants are different fr…

…so contributing to fibrosis when repair responses persist. Follow the pathway Dr. Purser connects TGF-β1 signaling with fibroblasts, collagen deposition, immune regulation, and oxidative stress. Its protective and harmful effects depend on…

…obes and damaged tissue. It often works with TLR1 or TLR6. Follow the pathway Dr. Purser follows TLR2 signaling through MyD88 and NF-κB into cytokine production. This connects the initial recognition of a trigger with inflammation, blood-v…

…e programmed cell death, a normal quality-control process. Follow the pathway Dr. Purser connects DR4 signaling with damaged-cell removal, caspase activation, and the way cellular stress can affect the response. This is different from TNF-…

…iants are studied in relation to higher clotting activity. Follow the pathway Dr. Purser discusses rs2289252, factor XI activity, and the distinction between thrombosis research and hemophilia C. The same gene can be associated with very d…

…ap with other skin problems, making examination important. Follow the pathway Dr. Purser explores macrophage activity, granuloma formation, TNF-alpha, interferon-gamma, and related inflammatory pathways. He also discusses oxidative stress …

…cells, it can act as a danger signal to the immune system. Follow the pathway Dr. Purser explains the connection between HMGB1, receptors such as RAGE and TLR4, NF-κB signaling, and ongoing tissue inflammation. He also discusses oxidative …