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…f dissolving clots, alongside homocysteine and blood-vessel inflammation. These are interacting risk considerations; a common PAI-1 variant is not the same as having a clot or needing a blood-thinning treatment. Bring these questions to yo…

…ern of hair shedding that can follow illness, physiological stress, weight change, medication changes, or other triggers. Hair changes often lag behind the trigger. Follow the pathway Dr. Purser discusses the hair follicle cycle, metabolic…

…pmental picture. Tic severity can change over time and with stress or other circumstances. Follow the pathway Dr. Purser discusses cortico-striatal-thalamo-cortical circuits, dopamine, and inhibitory GABA signaling. He also explores behavi…

…nnects eosinophil recruitment with allergic airway and skin inflammation. He also discusses research on CCL11 and brain aging; a research association is different from predicting an individual’s future health. Bring these questions to your…

…me macrophages, cells that remove debris and participate in inflammation. Follow the pathway Dr. Purser follows the CCL2–CCR2 pathway through blood-vessel, kidney, and metabolic inflammation. He discusses homocysteine, NF-κB signaling, and…

…and immune conditions, including research on nervous-system inflammation. A raised level can have several explanations and does not establish a specific disease. Bring these questions to your visit Ask which result is being discussed: a ge…

Explore CD40L, antigen-presenting cells, antibody class switching, and autoimmunity. Understand the connection CD40 is a receptor involved in communication between immune cells. Its partner, CD40L, helps activated T cells communicate with …

…ters. He connects ongoing activity in this pathway with antibody-driven inflammation and discusses why a biomarker needs clinical context. Bring these questions to your visit Ask which result is being discussed: a genetic variant, a measur…

…n IL-10 helps regulate immune responses and limit excessive inflammation. Its effects depend on which cells are involved and what is happening in the tissue. Follow the pathway Dr. Purser discusses IL-10 promoter variants and the balance b…

…pe 2 immune signaling, including mucus production, allergic inflammation, and changes in barrier tissues. It works closely with IL-4 but is a distinct signal. Follow the pathway Dr. Purser connects IL-13 with eosinophilic and allergic cond…

…nd lungs. It can support repair but can also participate in inflammation when signaling is out of balance. Follow the pathway Dr. Purser describes the IL-22R1 and IL-10R2 receptor complex and the role of Th17, Th22, and innate lymphoid cel…

… alongside liver processing, hormone balance, and oxidative stress. Common variants are different from confirmed disease-causing mutations, and a genotype does not directly measure enzyme activity. Bring these questions to your visit Ask h…