GSTO2 Gene Overview
What It Does:
The GSTO2 gene belongs to the omega class of the Glutathione S-transferases (GST) enzyme family, which supports phase II detoxification by:
- Neutralizing harmful substances with glutathione, creating water-soluble metabolites.
- Removing toxins and byproducts via urine and stool.
Why This Matters to You:
Variants in the GSTO2 gene can impact detoxification and antioxidant activity, potentially increasing the risk of certain cancers, oxidative stress, and late-onset diseases.
Understanding the GSTO2 Variant
Key Mutation:
- Asn142Asp (A>G)
This variant affects GSTO2 enzyme activity and antioxidant defense.
Impact of the G Allele
Impact Allele:
- G Allele (Negative)
What It Means for You:
- Detoxification & Antioxidant Activity:
- G allele carriers have significantly reduced GSTO2 enzyme expression, leading to:
- Lower regeneration of vitamin C, reducing its antioxidant effectiveness.
- Accumulation of oxidized vitamin C, which may act as a pro-oxidant, potentially causing cellular damage.
- Associated Health Risks:
- Increased risk for:
- Ovarian, bladder, and kidney cancers.
- Late-onset Alzheimer’s disease.
- Smoking significantly raises the risk of renal cell carcinoma (kidney cancer) in G allele carriers.
What This Means for You
- If you carry the G allele (AG or GG genotypes):
- Boost your intake of antioxidants, including foods rich in vitamin C, vitamin E, and selenium.
- Avoid smoking and minimize exposure to environmental toxins that increase oxidative stress.
- Monitor for early signs of cancer or age-related conditions if you have a family history of these diseases.
- Engage in regular exercise to support overall cellular health.
Next Step:
Work with a genomics specialist or doctor to assess your GSTO2 variant and create a personalized plan to support detoxification and antioxidant balance.