THE PURSER WELLNESS LIBRARY

Let’s explore 2-hour glucose, 75 g OGTT — lab reference

A COURSE FOR YOUR CURIOSITYBlood sugar & daily energy

4 chapters, at your pace

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522 discoveries for your curiosity12 matching listings grouped; alternative sources stay available.

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Gene referenceSep 23, 2026

BCO1

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…y at different points. Also called: BCMO1, Beta-Carotene Oxygenase 1 From beta-carotene to vitamin A BCO1, also called BCMO1, helps convert beta-carotene from plant foods into retinal, a form used in vitamin A metabolism. Plant carotenoids …

Gene referenceSep 23, 2026

BHMT

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…Betaine-Homocysteine S-Methyltransferase Another route through the homocysteine map The practitioner course includes BHMT in Dr. Purser’s methylation and homocysteine cluster. BHMT provides a betaine-dependent route for converting homocyste…

Gene referenceSep 23, 2026

BRCA1

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BRCA1 helps repair damaged DNA. Clinically classified pathogenic variants can affect inherited cancer risk; a common SNP or a variant of uncertain significance is a different finding. Also called: Breast Cancer 1 DNA repair and inherited ca…

Gene referenceSep 23, 2026

CBS

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…alled: Cystathionine Beta-Synthase From homocysteine toward glutathione Dr. Purser places CBS in the sulfur-handling pathway that connects homocysteine with glutathione production. In that map, CBS concerns the first step moving homocystein…

Gene referenceSep 23, 2026

CD14

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CD14 helps immune cells recognize microbial components, including bacterial lipopolysaccharide, as part of innate immune signaling. This places it upstream of some cytokine responses. Also called: Cluster of Differentiation 14 How immune ce…

Gene referenceSep 23, 2026

COL5A1

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COL5A1 encodes one component of type V collagen, which helps organize collagen fibers. It connects to the strength and structure of tendons, skin and other connective tissues. Also called: Collagen Type V Alpha 1 Chain Collagen structure, t…

Gene referenceSep 23, 2026

COMT

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…an enzyme that helps break down catechol compounds, including some neurotransmitters. A common variant does not by itself explain mood, attention or stress tolerance. Also called: Catechol-O-Methyltransferase Catecholamines and sensitivity …

Gene referenceSep 23, 2026

CTH

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Dr. Also called: Cystathionine Gamma-Lyase From homocysteine toward glutathione Dr. Purser places CTH in the sulfur-handling pathway that connects homocysteine with glutathione production. In that map, CTH concerns the downstream step that …

Gene referenceSep 23, 2026

DHFR

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…rt into cells. Also called: Dihydrofolate Reductase Recycling folate into usable cellular forms DHFR helps reduce folic acid and dihydrofolate to tetrahydrofolate-related forms used in cellular metabolism. This is one part of the folate sys…

Gene referenceSep 23, 2026

ESR1

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ESR1 encodes estrogen receptor alpha, which helps cells respond to estrogen. Receptor signaling is different from the amount of estrogen measured in blood. Also called: Estrogen Receptor 1 Estrogen signaling depends on the receptor ESR1 enc…

Gene referenceSep 23, 2026

FADS1

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…5D The form of a fatty acid matters Dr. Purser teaches FADS genes as a conversion pathway. FADS1 participates in a delta-5 desaturase step in fatty-acid metabolism. This is why plant-based precursor fats and preformed long-chain omega-3s sh…

Gene referenceSep 23, 2026

FOLH1

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Dr. Also called: Folate Hydrolase 1 Folate handling begins before remethylation Dr. Purser’s genetic chapters include FOLH1 in folate handling. The earlier genetics reference explains its role in breaking down polyglutamated food folates in…

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