THE PURSER WELLNESS ENCYCLOPEDIA

Let’s explore “Vitamin E, alpha-tocopherol — lab reference”

A RELATED COURSEGetting to know your micronutrients

5 chapters, at your pace

Explore the course

928 resources for your curiosity93 matching listings grouped; alternative sources stay available.

What’s searchable?
Gene referenceSep 23, 2026

MTRR

Some search terms matched

Helps maintain the activity of methionine synthase, connecting B12-related chemistry with homocysteine metabolism. Also called: Methionine Synthase Reductase Keeping the remethylation system working Dr. Purser teaches MTRR alongside MTR bec…

Gene referenceSep 23, 2026

NAT2

Some search terms matched

NAT2 encodes N-acetyltransferase 2, which helps process certain drugs and other compounds. Combinations of variants can influence acetylation status; one SNP usually does not tell the entire story. Also called: N-Acetyltransferase 2 Acetyla…

Gene referenceSep 23, 2026

NOS3

Some search terms matched

NOS3 encodes endothelial nitric oxide synthase, which helps blood vessels generate nitric oxide, a signal involved in vascular relaxation. This pathway is distinct from a blood pressure measurement or a diagnosis of vascular disease. Also c…

Gene referenceSep 23, 2026

NQO1

Some search terms matched

NQO1 is the gene name for NAD(P)H Quinone Oxidoreductase 1. Learn what a specific result could mean and what to ask about it. Also called: NAD(P)H Quinone Oxidoreductase 1 Quinone handling within the redox network Dr. Purser includes NQO1 i…

Gene referenceSep 23, 2026

NR3C1

Some search terms matched

NR3C1 encodes the glucocorticoid receptor, which helps tissues respond to cortisol and glucocorticoid medicines. Receptor genetics and measured cortisol levels answer different questions. Also called: Nuclear Receptor Subfamily 3 Group C Me…

Gene referenceSep 23, 2026

NR3C2

Some search terms matched

NR3C2 encodes the mineralocorticoid receptor, which responds to hormones such as aldosterone and helps regulate salt and fluid balance. It is distinct from the NR3C1 glucocorticoid receptor. Also called: Mineralocorticoid Receptor / Nuclear…

Gene referenceSep 23, 2026

NTRK2

Some search terms matched

NTRK2 encodes TrkB, a receptor involved in responding to neurotrophic signals such as BDNF. These signals support nervous-system function and plasticity. NTRK2 is not a phosphatidylserine absorption transporter. Also called: Neurotrophic Re…

Gene referenceSep 23, 2026

PEMT

Some search terms matched

Makes an enzyme involved in producing phosphatidylcholine, a component of cell membranes. Genetic findings alone do not establish a choline deficiency. Also called: Phosphatidylethanolamine N-Methyltransferase, choline, phosphatidylcholine …

Gene referenceSep 23, 2026

PON1

Some search terms matched

PON1 is discussed in relation to how the body handles some compounds and protects certain fats. Also called: Paraoxonase 1 A different part of antioxidant handling PON1 appears in Dr. Purser’s redox and conversion teaching alongside GST and…

Gene referenceSep 23, 2026

PSEN1

Some search terms matched

PSEN1 encodes a presenilin protein that participates in gamma-secretase, a protein-processing complex. Some pathogenic variants can cause familial Alzheimer’s disease; a listed common marker is not equivalent to that diagnosis. Also called:…

Gene referenceSep 23, 2026

PSEN2

Some search terms matched

PSEN2 encodes a presenilin protein that participates in gamma-secretase, a protein-processing complex. Some pathogenic variants can cause familial Alzheimer’s disease; a listed common marker is not equivalent to that diagnosis. Also called:…

Gene referenceSep 23, 2026

PTGS2

Some search terms matched

PTGS2, commonly called COX-2, encodes an enzyme involved in prostaglandin production. Prostaglandins participate in pain, fever and inflammatory signaling. Also called: COX2, Cyclooxygenase 2 COX-2 and inflammatory prostaglandins PTGS2, com…

Search looks for your words in titles, descriptions, available articles, learning guides, and video captions when available. The closest matches appear first. Duplicate posts are grouped, with links to other places you can read or watch them. Books, chapters, and reports have topic guides here; the original files and full book text are not available in this encyclopedia. Subscriber posts include a title and public summary; open Substack to read the full post.