THE PURSER WELLNESS LIBRARY

Let’s explore C-peptide, fasting — lab reference

A COURSE FOR YOUR CURIOSITYGetting to know your micronutrients

5 chapters, at your pace

Explore the course

470 discoveries for your curiosity17 matching listings grouped; alternative sources stay available.

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Gene referenceSep 23, 2026

FOLR1

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FOLR1 encodes folate receptor alpha, which helps cells take up folate and has an important role in folate transport at the brain’s barriers. Blood folate and folate availability in the nervous system are not identical measurements. Also cal…

Gene referenceSep 23, 2026

FOLR2

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FOLR2 encodes folate receptor beta, a folate-binding protein expressed in particular cell types, including subsets of immune cells. It is distinct from the FOLR1 receptor and the SLC19A1 reduced folate carrier. Also called: Folate Receptor …

Gene referenceSep 23, 2026

FTO

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FTO is studied in relation to body weight and energy balance. Common variants can contribute to population-level differences in obesity susceptibility, alongside many other genes and environmental factors. Also called: Fat Mass and Obesity-…

Gene referenceSep 23, 2026

FUT2

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Dr. Also called: Fucosyltransferase 2 The mucosal and microbiome connection Dr. Purser’s course places FUT2 in its gut–immune map. FUT2 concerns secretor biology and the surface environment of mucosal tissues, helping explain why it appears…

Gene referenceSep 23, 2026

GAD1

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Dr. Also called: Glutamate Decarboxylase 1 The glutamate-to-GABA connection Dr. Purser’s course uses GAD/GABA teaching to explain a connection between excitatory and inhibitory signaling. GAD1 encodes an enzyme involved in producing GABA fr…

Gene referenceSep 23, 2026

GAD2

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GAD2 belongs to the glutamate decarboxylase family discussed in the course’s GAD/GABA teaching. Also called: Glutamate Decarboxylase 2 Another part of the GABA system GAD2 belongs to the glutamate decarboxylase family discussed in the cours…

Gene referenceSep 23, 2026

GCLC

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Dr. Also called: Glutamate-Cysteine Ligase Catalytic Subunit Making glutathione is a process Dr. Purser groups GCLC and GCLM as glutathione-synthesis machinery. GCLC supplies the catalytic component of the first enzyme step in glutathione s…

Gene referenceSep 23, 2026

GCLM

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Dr. Also called: Glutamate-Cysteine Ligase Modifier Subunit Making glutathione is a process Dr. Purser groups GCLC and GCLM as glutathione-synthesis machinery. GCLM supplies the modifier component that helps regulate that same glutathione-s…

Gene referenceSep 23, 2026

GDF5

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GDF5 encodes growth differentiation factor 5, a signaling protein involved in skeletal development, joint formation and cartilage biology. Its name does not mean a SNP measures the ability to build muscle. Also called: Growth Differentiatio…

Gene referenceSep 23, 2026

GGH

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GGH encodes gamma-glutamyl hydrolase, which removes glutamate residues from folate compounds. This affects folate handling and helps explain why folate metabolism includes retention and processing as well as intake. Also called: Gamma-Gluta…

Gene referenceSep 23, 2026

GPX1

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Dr. Also called: Glutathione Peroxidase 1 Glutathione has enzyme partners Dr. Purser teaches the glutathione peroxidase family alongside selenium and antioxidant support. GPX1 helps illustrate cellular peroxide handling. These enzymes use g…

Gene referenceSep 23, 2026

GPX3

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Dr. Also called: Glutathione Peroxidase 3 Glutathione has enzyme partners Dr. Purser teaches the glutathione peroxidase family alongside selenium and antioxidant support. GPX3 helps illustrate extracellular peroxide defense. These enzymes u…

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