Telomeres are sections of genetic material at the end of each chromosome whose primary function is to prevent chromosomal “fraying” when a cell replicate. As a cell ages, its telomeres become shorter. Eventually, the telomeres become too short to allow cell replication, the cell stops dividing and will ultimately die - a normal biological process. This Telomere Test can determine the length of your telomeres in relation to the patient’s age.
How are the results reported?
The Telomere Score is calculated based on your average telomere length in peripheral whole blood cells. This average is then compared to telomere lengths from a population sample in the same age range.
What do the results mean to you?
Cellular attrition by analyzing the rate at which changes in average Telomere length occur over time. Cells are being lost and replaced. (Cellular attrition)
What are the nutritional implications on telomere length and repair?
An inflammatory diet, or one that increases oxidative stress, will shorten telomeres faster. This includes refined carbohydrates, fast foods, processed foods, sodas, artificial sweeteners, trans fats and saturated fats. A diet with a large amount and variety of antioxidants that improves oxidative defense and reduces oxidative stress will slow telomere shortening. Consumption of 10 servings of fresh and relatively uncooked fruits and vegetables, mixed fiber, monounsaturated fats, omega-3 fatty acids, cold water fish, and high-quality vegetable proteins will help preserve telomere length. In addition, it is advised to reduce total daily caloric intake and implement an exercise program. Fasting for 12 hours each night at least 4 days per week is recommended.
What lifestyle modifications are likely to be helpful?
One should achieve ideal body weight and body composition with low body fat (less than 22 % for women and less than 16 % for men). Decreasing visceral fat is very important. Regular aerobic and resistance exercise for at least one hour per day, sleeping for at least 8 hours per night, stress reduction, discontinuation of all tobacco products is strongly recommended. Hormonal balance support (improving sleep, control blood sugar for example) may decrease the rate of telomere loss.
When should retesting be considered?
Testing should be done once per year to evaluate the rate and direction of telomere changes and make adjustments in nutrition, nutritional supplements, weight management, exercise and other lifestyle modifications known to influence telomere length.
What role will nutritional supplements play in slowing telomere shortening?
Oxidative stress may shorten telomere length and cause aging in cellular tissue. Antioxidant supplements can potentially reduce oxidative stress very effectively, which will ultimately improve oxidative defenses, mitochondrial function, reduce inflammation and slow vascular aging. Targeted supplementation is key, as antioxidants work synergistically and must be balanced to work most effectively and avoid inducing a pro-oxidant effect. Increasing antioxidant capacity at the cellular level is critical to maintaining telomere length.
Recent evidence suggests that a high quality and balanced multivitamin will also help maintain telomere length. Specifically, studies have linked longer telomeres with levels of vitamin E, vitamin C, vitamin D, omega-3 fatty acids and the antioxidant resveratrol. In addition, homocysteine levels have been inversely associated with telomere length, suggesting that reducing homocysteine levels via folate and vitamin B supplementation may decrease the rate of telomere loss. Similarly, conditions such as cardiovascular disease, insulin resistance, diabetes, hypertension, atherosclerosis and even dementia affect telomere length. Correcting subclinical nutritional deficiencies that may contribute to such diseases is crucial for telomere maintenance.
**Fasting is NOT required**
1. Collect one 2.7 ml sodium citrate (blue top) tube of whole blood.
2. Gently invert 5 times to mix the blood thoroughly with the anticoagulant.
3. DO NOT SPIN or FREEZE the specimen.
4. Label tube with your name and date and affix sticker from requisition.
5. Follow packaging instructions provided with kit of choice.
6. Insert the box into the supplied Lab Pack envelope, seal tightly and affix the Fed Ex expanded billable stamp to the indicated spot.
7. Complete the “Shipper” portion of the stamp.
Results are typically available within 7-10 business days