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

FOLR1

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…nsport at the brain’s barriers. Blood folate and folate availability in the nervous system are not identical measurements. Also called: Folate Receptor 1 Folate transport has tissue-specific roles FOLR1 encodes folate receptor alpha, which …

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

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

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…

Gene referenceSep 23, 2026

GPX4

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Dr. Also called: Glutathione Peroxidase 4 Glutathione has enzyme partners Dr. Purser teaches the glutathione peroxidase family alongside selenium and antioxidant support. GPX4 helps illustrate protection involving lipid peroxides in membran…

Gene referenceSep 23, 2026

GSR

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GSR encodes glutathione reductase. It uses reducing power from NADPH to help convert oxidized glutathione back to reduced glutathione, allowing this antioxidant system to be reused. Also called: Glutathione Reductase Recycling used glutathi…

Gene referenceSep 23, 2026

GSTM1

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The practitioner course places GSTM1 in the glutathione transferase family. Also called: Glutathione S-Transferase Mu 1 Using glutathione in conjugation The practitioner course places GSTM1 in the glutathione transferase family. These enzym…

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