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Gene referenceSep 23, 2026
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…ps maintain the activity of methionine synthase, connecting B12-related chemistry with homocysteine metabolism. Also called: Methionine Synthase Reductase Keeping the remethylation system working Dr. Purser teaches MTRR alongside MTR becaus…

Learning essentialsSep 23, 2026
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Follow Dr. Purser’s teaching on folate, B12, sulfur pathways and antioxidant support around homocysteine. Also called: Follow the branches around homocysteine Homocysteine sits at a junction in the pathway. Dr. Purser’s teaching follows ho…

Learning essentialsSep 23, 2026
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…nt team. Also called: An antioxidant team with different jobs Dr. Purser teaches redox defense as a connected team. SOD handles superoxide and produces hydrogen peroxide. Catalase and glutathione peroxidases help handle peroxides. Glutathi…

Report teachingAug 16, 2026
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… recruit monocytes through the CCR2 receptor. Monocytes can become macrophages, cells that remove debris and participate in inflammation. Follow the pathway Dr. Purser follows the CCL2–CCR2 pathway through blood-vessel, kidney, and metabol…

Report teachingAug 16, 2026
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Explore membrane and soluble CD14, lipopolysaccharide (LPS), TLR4, and innate immune activation. Understand the connection CD14 helps the immune system recognize lipopolysaccharide, or LPS, from the outer surface of certain bacteria. It ap…

Report teachingAug 16, 2026
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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 …

Report teachingAug 16, 2026
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…AP is an accessory part of the IL-18 receptor. IL18R1 helps bind the cytokine; IL18RAP helps the receptor complex send its signal inside the cell. Follow the pathway Dr. Purser follows this receptor complex through MyD88 and NF-κB signalin…

Report teachingAug 16, 2026
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…h17 cells, IL-21R, JAK/STAT terminology, and cellular redox balance. Understand the connection IL-21 is produced by immune cells including follicular helper T cells and Th17 cells. It influences B cells, antibody responses, and other parts…

Report teachingAug 16, 2026
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Explore Toll-like receptor 2, microbial and damage signals, TLR1, TLR6, and MyD88 signaling. Understand the connection TLR2 is a pattern-recognition receptor that helps immune cells detect components of microbes and damaged tissue. It ofte…

Report teachingAug 6, 2026
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Explore high mobility group box 1, damage-associated molecular patterns (DAMPs), TLR4, RAGE, and cellular stress. Understand the connection HMGB1 normally helps organize DNA inside a cell. When it is released outside injured or stressed ce…

Report teachingJul 25, 2026
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Explore Toll-like receptor 4, lipopolysaccharide (LPS), HMGB1, innate immune sensing, and related inflammatory pathways. Understand the connection TLR4 helps recognize bacterial lipopolysaccharide, or LPS, with assistance from CD14 and MD-…

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