Add-on Nervous System


Add-on Nervous System


This report is an add-on product. It is valid with a purchase which includes a DNA test or if you have taken a Lifecode Gx DNA test since 1st October 2017.

*PLEASE NOTE: This report cannot currently be generated using 23andMe data.



The nervous system DNA test examines the key genes and variants (SNPs) that affect neurotransmitter balance, nerve cell growth & maintenance, thyroid hormone conversion, inflammation and pharmacological response.

Common genetic variants combined with environmental factors including nutrient imbalances, low physical activity, toxins and other stressors can result in anxiety, depression, mood imbalances, lack of motivation, drive or focus, addiction, poor memory or sleep disturbances.

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This report focuses on the key genes and variants (SNPs) involved in the neurotransmitter pathways: serotonin-melatonin, dopamine-noradrenaline-adrenaline, and GABA-glutamate; neuropharmacology (drug metabolism); and neuroprotection, inflammation (kynurenine-pathway), thyroid function and stress response.


  • personalised, colour coded genotype results
  • gene function and SNP impact descriptions
  • clinically relevant SNPs
  • nutrient and other epigenetic impacts
  • follow up functional testing options
  • nutrition and lifestyle recommendations
  • dynamic links to research evidence

Genes included:

Serotonin-Melatonin: QDPR, TPH1, TPH2, VDR, 5-HT1A, 5-HT2A, SLC18A1, ASMT, MAOA, ALDH2 and MTNR1B
Dopamine-Noradrenaline-Adrenaline: QDPR, TH, DBH, VDR, DRD2, SLC18A1, SLC6A2, SLC6A3, PNMT, ADRB1, ADRB2, MAOA, MAOB, COMT and ALDH2
Inflammation: IFN gamma, TNF, FKBP5
Pharmacological: CYP2C19, CYP2D6, CYP3A4
Thyroid: DIO1, DIO2