THE PURSER WELLNESS LIBRARY

Let’s explore 25-hydroxyvitamin D, total — lab reference

A COURSE FOR YOUR CURIOSITYGetting to know your micronutrients

5 chapters, at your pace

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498 discoveries for your curiosity16 matching listings grouped; alternative sources stay available.

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Gene referenceSep 23, 2026

ADIPOQ

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ADIPOQ encodes adiponectin, a hormone released by fat tissue that participates in insulin sensitivity and fat metabolism. Its name often appears in discussions of triglycerides, body composition and metabolic health. Also called: Adiponecti…

Gene referenceSep 23, 2026

AHCY

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The genetic-architecture chapter explains that S-adenosylmethionine (SAM) donates methyl groups and becomes S-adenosylhomocysteine (SAH). Also called: Adenosylhomocysteinase Methyl-group use leaves another molecule behind The genetic-archit…

Gene referenceSep 23, 2026

AOC1

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Encodes diamine oxidase, an enzyme involved in breaking down histamine and other amines. DAO is used here as an enzyme nickname; it is also the official symbol of a different gene. Also called: DAO, Amine Oxidase, Copper Containing 1, Diami…

Gene referenceSep 23, 2026

APOE

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APOE encodes a protein that carries lipids between cells. The familiar APOE e2, e3 and e4 groupings depend on the combination of rs429358 and rs7412, not on either marker read in isolation. Also called: Apolipoprotein E Lipid transport and …

Gene referenceSep 23, 2026

ATG16L1

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The course introduces ATG16L1 through autophagy, the cellular process that helps recycle components. Also called: Autophagy-Related 16-Like 1 Cellular recycling meets gut immunity The course introduces ATG16L1 through autophagy, the cellula…

Gene referenceSep 23, 2026

BCO1

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BCO1, also called BCMO1, helps convert beta-carotene from plant foods into retinal, a form used in vitamin A metabolism. Plant carotenoids and preformed vitamin A therefore enter the pathway at different points. Also called: BCMO1, Beta-Car…

Gene referenceSep 23, 2026

BHMT

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The practitioner course includes BHMT in Dr. Also called: BHMT08, Betaine-Homocysteine S-Methyltransferase Another route through the homocysteine map The practitioner course includes BHMT in Dr. Purser’s methylation and homocysteine cluster…

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

BRCA2

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BRCA2 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 2 DNA repair and inherited ca…

Gene referenceSep 23, 2026

CBS

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Dr. Also called: 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 h…

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