Encyclopedia

VDR encodes the vitamin D receptor, which helps regulate gene activity in response to active vitamin D. A receptor variant does not by itself mean receptors are absent or that the blood vitamin D level is low.

VKORC1 encodes vitamin K epoxide reductase, part of the vitamin K recycling system used in activating clotting proteins. It is not simply a vitamin K receptor.

How the Purser approach moves from a nutrient finding to priorities, a manageable plan and reassessment.

How Dr. Purser combines inherited tendencies, current nutrient findings and conventional laboratory results without treating them as the same test.

Follow Dr. Purser’s teaching on folate, B12, sulfur pathways and antioxidant support around homocysteine.

Understand why Dr. Purser teaches glutathione, SOD and catalase as a connected antioxidant team.

Explore the history, production signals, nutrient context and monitoring that shape Dr. Purser’s hormone assessment.

Separate the gene, variant, measured value and clinical interpretation—and learn which questions to bring to your visit.

GSTO2 encodes glutathione S-transferase omega 2, a redox enzyme with dehydroascorbate reductase activity that connects glutathione chemistry with vitamin C recycling. It is a separate gene from GSTO1.

IL4 encodes interleukin-4, a cytokine involved in Th2 immune responses and antibody class switching, including pathways related to IgE. It operates alongside IL-5 and IL-13 rather than representing all allergic biology by itself.

See how homocysteine connects to cysteine and glutathione. Follow seven simple steps, explore the side routes, and tap a word or building block to learn more.

Ever remember something I said in a video but have no idea which video it was? We’ve been working on that. Introducing **Purser Wellness Explore** a new home for my teaching, organized so you can find the subjects that matter to you. MTH