GSTT1 Gene Overview
What It Does:
The GSTT1 gene encodes another enzyme in the glutathione S-transferase (GST) family, which supports phase II detoxification by neutralizing toxins. Like GSTM1, GSTT1 processes:
- Environmental toxins (e.g., cigarette smoke, PAHs).
- Reactive byproducts from body metabolism.
Why This Matters to You:
A deletion in the GSTT1 gene can impair detoxification, leading to higher levels of oxidative stress and associated health risks.
Understanding the GSTT1 Variant
Key Mutation:
- INS/DEL (Insertion or Present/Deleted)
The deletion variant results in the absence of GSTT1 enzyme activity.
Impact of the DEL (Deletion)
Impact Allele:
- DEL (Negative)
What It Means for You:
- Detoxification:
- Absence of GSTT1 enzyme reduces the body’s ability to process:
- Environmental toxins (e.g., grilled meats, cigarette smoke).
- Reactive compounds formed during detoxification processes.
- Health Risks:
- Increased risk for:
- Cancers, particularly in individuals exposed to environmental toxins.
- Chronic inflammatory conditions due to elevated oxidative stress.
What This Means for You
- If you carry the DEL variant (GSTT1 null genotype):
- Follow a detox-supportive lifestyle, including regular exercise and a diet rich in detoxifying foods (e.g., cruciferous vegetables, garlic, and green tea).
- Limit exposure to environmental toxins, such as cigarette smoke, processed foods, and air pollution.
- Consider antioxidant supplements to reduce oxidative stress.
Next Step:
Work with a genomics specialist or doctor to create a personalized detoxification plan tailored to your GSTT1 variant and lifestyle.