Genes & pathways

Gene & pathway reference · FROM DR. PURSER’S TEACHING

CXCL13

CXCL13 is a chemokine that attracts cells expressing CXCR5, including B cells. This pairing helps organize immune-cell traffic in lymphoid tissues and some chronic inflammatory settings.

Updated Sep 23, 2026 · Educational reference

THE TEACHING CONNECTION

Guiding B cells to organized immune sites

Guiding B cells to organized immune sites

CXCL13 is a chemokine that attracts cells expressing CXCR5, including B cells. This pairing helps organize immune-cell traffic in lymphoid tissues and some chronic inflammatory settings.

How Dr. Purser connects the pieces

Dr. Purser connects CXCL13 with B-cell organization in brain and spinal-cord inflammation. A blood measurement, a cerebrospinal-fluid measurement and an inherited DNA marker cannot be treated as interchangeable. Interpretation depends on the clinical neurological question and the sample tested.

Where the VARS Triad and MTHFR Daily fit

In Dr. Purser’s treatment framework, the VARS Triad—VARS Glutathione, VARS SOD and VARS Catalase—together with MTHFR Daily is a central consideration when homocysteine or cytokine issues are involved. He emphasizes VARS Glutathione as a foundational functional-support component across his genetic SNP teaching. The individual gene lesson explains how its pathway connects to that broader approach.

This describes the Purser treatment model, not proof that a product corrects a variant or treats every associated condition. Product choice, formulation, sequence and amount depend on the individual assessment, existing medicines, current findings and tolerance.

A question to bring to your visit

What sample or test is being discussed, and what can it actually tell us about the nervous system?

Variant lookup

These teaching identifiers include regional research markers. Match them to your original laboratory report; listing alone does not establish clinical significance or a treatment need.