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Health BlogFeb 28, 2018

This test result is bad and could indicate an infection, especially viral. This is a great test for those with A1298C and especially who are Homozygous A1298C. Neopterin is bad while biopterin is good. If neopterin is repeatedly high, the BH4 is low. Neopterin is a sensitive marker of cellular mediated immunity. Reduced levels reflect cellular immunity weakening. Increased neopterin occur with infectious, inflammatory, immune system dysfunction or neoplastic disease evolution. Excessive neopterin negatively impacts the Nitric Oxide pathway in the body (e.g. excessive peroxynitrite formation an

Gene referenceSep 23, 2026

DHFR helps reduce folic acid and dihydrofolate to tetrahydrofolate-related forms used in cellular metabolism. This is one part of the folate system, distinct from MTHFR and folate transport into cells.

Gene referenceSep 23, 2026

FOLH1 helps break down folate from food so it can be absorbed. This is different from the MTHFR step.

Gene referenceSep 23, 2026

MTHFS encodes an enzyme that converts 5-formyltetrahydrofolate into 5,10-methenyltetrahydrofolate. This places it in folate interconversion; it is not another name for MTHFR or a direct maker of methylfolate.

FacebookSep 17, 2026

Good questions deserve a deeper conversation. Purser Wellness Explore is a new space to follow yours - videos, articles, and guided journeys with me. Start with MTHFR, cytokines, homocysteine, gut health… or whatever thread you’re holding

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