…d NAC with the raw-material side of glutathione production. CBS and CTH help explain the sulfur pathway upstream, while GCLC/GCLM concern synthesis. Supplying a precursor and supplying glutathione are different approaches.
Putting the piece…
…ks. Several genes help with different parts of the process: CBS and CTH affect the supply of cysteine, GCLC and GCLM help make glutathione, GST enzymes use it when processing some compounds, and GPX enzymes use it to help handle peroxides. …
…rocessing. That is a specific teaching connection alongside CBS/CTH, cysteine and glutathione, rather than a reason to describe all food or supplement reactions as a molybdenum problem.
Putting the pieces together
A sulfur-processing questi…
…ry. Folate/B12 and MTR/MTRR belong in the first discussion; CBS/CTH and glutathione-building materials belong in the second. MTHFR is an important piece, but not the entire map.
Putting the pieces together
His model also brings antioxidant …
… Sulfur pathway, Cysteine synthesis, Glutathione synthesis, CBS pathway, CTH pathway
Two directions from homocysteine
Homocysteine has two main routes. It can be turned back into methionine, or its sulfur can move toward cysteine. The recyc…
…eine Panel (not just MTHFR C677T/A1298C—includes MTR, MTRR, CBS, PEMT, etc.). Most labs stop at two SNPs. I test 22 because real patients have compound defects. Intracellular Micronutrient Testing to catch functional folate, B12, B6, and gl…
…n, and fatigue.
This often happens when certain genes (like CBS, NAT2, and glutathione-related genes) or low ceruloplasmin activity prevent copper from being properly absorbed and used inside your cells.
That’s why we created Copper Balance…
…r points, and migraines. This often ties back to genes like CBS, NAT2, and glutathione-related SNPs that impair copper transport. The solution is supporting ceruloplasmin—the copper-binding protein—with targeted nutrients like B6, zinc, and…
…raise blood pressure. Six genetic SNPs (like MTR, MTRR, and CBS) and MTHFR mutations (like C677T) can prevent homocysteine from converting into glutathione, which is essential for keeping inflammation in check. Plus, 12 vitamin deficiencies…
…prits:
1. MTHFR C677T & A1298C
2. MTR & MTRR
3. GGH
4. CBS (a tricky one—nobody likes this!)
Homozygous versions of these SNPs can shut down your methylation cycle, making it difficult for your body to manage homocysteine levels. The …
…ant was measured, and what is its clinical classification?
CBS
CBS is the gene symbol used for Cystathionine Beta-Synthase. This page connects its terminology with the topics in the Purser Wellness teaching encyclopedia.
GGH
GGH is the ge…
… not the same process. Dr. Purser discusses MTHFR alongside CBS, MTR, MTRR and SHMT1 because these genes participate in a broader metabolic network. A finding in one gene cannot tell you the activity of the entire network. Dr. Purser also i…
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