…uced form of a coenzyme involved in cellular energy reactions.
Also called: NADH
What it does
The reduced form of a coenzyme involved in cellular energy reactions.
How supplementation is approached
NADH belongs to cellular-energy chemistry,…
A compound sold in supplements; it is not an established essential human vitamin.
Also called: PQQ (Pyrroloquinoline Quinone), Pyrroloquinoline Quinone
A teaching category, not a deficiency diagnosis
Dr. Purser’s course places PQQ in its mi…
A trace element without an established essential dietary role in humans.
Also called: Vanadium
What it does
A trace element without an established essential dietary role in humans.
How supplementation is approached
Dr. Purser’s course place…
Helps calcium absorption and bone mineralization.
Also called: Vitamin D
A nutrient level and a receptor gene answer different questions
Dr. Purser places vitamin D in immune, hormone and bone-related teaching. The conversion-genetics chapt…
A carotenoid found in foods and in the retina.
Also called: Zeaxanthin
What it does
A carotenoid found in foods and in the retina.
How supplementation is approached
Zeaxanthin is a plant pigment found in the eye and often paired with lutein…
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…
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…
The older Purser genetics reference uses the heading “DAOA (AOC1)” in its gut section.
Also called: D-Amino Acid Oxidase Activator
Two similar names, two different pathways
You may see DAOA and AOC1 written together in older materials, but …
GAD1 helps your body make GABA, a chemical messenger, from glutamate.
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 inhibito…
HRH2 is the gene name for Histamine Receptor H2. Learn what a specific result could mean and what to ask about it.
Also called: Histamine Receptor H2
Histamine also connects to stomach acid
Dr. Purser’s genetics reference connects HRH2 with…
CD40LG encodes CD40 ligand, which binds CD40 and supports communication needed for effective antibody responses. It is on the X chromosome, which changes how some genetic results must be interpreted.
Also called:
The ligand that helps acti…
RAD50 encodes a DNA-repair protein. The surrounding genomic region also contains regulatory elements relevant to the nearby IL4, IL5 and IL13 cluster, so a locus association can concern more than the coding function of one gene.
Also called…
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