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HLA-DQA1 contributes to an HLA-DQ protein that presents antigen fragments to CD4 T cells. HLA-DQ function depends on pairing with an HLA-DQB chain, so an isolated marker is not a complete HLA type.

IL23R encodes part of the receptor that receives IL-23 signals. This connects the gene to the maintenance of Th17-related immune responses, which differ from the Th2 patterns discussed in allergy.

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.

PTGS2, commonly called COX-2, encodes an enzyme involved in prostaglandin production. Prostaglandins participate in pain, fever and inflammatory signaling.

Explore the history, production signals, nutrient context and monitoring that shape Dr. Purser’s hormone assessment.

GSTO2 encodes glutathione S-transferase omega 2, a redox enzyme with dehydroascorbate reductase activity that connects glutathione chemistry with vitamin C recycling. It is a separate gene from GSTO1.

IFNG encodes interferon gamma, a cytokine involved in cellular immune defense and activation of macrophages. It differs from the Th2 signals more often emphasized in allergic responses.

IL17A encodes interleukin-17A, a cytokine involved in defense at tissue barriers and inflammatory signaling. It belongs to the Th17 pathway, which is supported by signals including IL-23.

ADRB2 is the gene name for Beta-2 Adrenergic Receptor. Learn what a specific result could mean and what to ask about it.

CYP1A2 is the gene name for Cytochrome P450 Family 1 Subfamily A Member 2. Learn what a specific result could mean and what to ask about it.

CYP2D6 is the gene name for Cytochrome P450 Family 2 Subfamily D Member 6. Learn what a specific result could mean and what to ask about it.

DIO1 is the gene name for Deiodinase, Iodothyronine Type I. Learn what a specific result could mean and what to ask about it.