Anxiety & Depression 5-HTTLPR Test

Do you have the “grouchy” gene? This DNA test detects the 5-HTTLPR genetic variant linked to altered serotonin levels and an increased risk of anxiety and depression.

$149.00

Description

The “grouchy” gene is a genetic variant in the SLC6A4 gene (designated 5-HTTLPR) that gives instructions to make a serotonin transporter. Serotonin, often called the ‘happiness molecule’ is responsible for feelings of pleasure and wellbeing. There are two common variants of the gene, a short (S) allele, or the “grouchy” gene and a long (L) allele. These variants are associated with differences in the number of serotonin transporters produced in the brain.
Individuals with the “grouchy” gene or the S allele make reduced numbers of serotonin transporters in the brain, which may increase the risk of mood disorders such as anxiety and depression.

The “grouchy” gene is also associated with increased risk for a variety of psychological conditions like depression, bipolar disorder, attention deficit disorder and Alzheimer’s disease as well as with addictive behaviours and sudden infant death syndrome. However, it should be noted that the presence of the “grouchy” gene is not a definitive indicator of increased risk of anxiety and depression.

The “Grouchy” Gene

We each inherit two copies of the SLC6A4 gene, one copy from each parent. Inheriting either one or two copies of the “grouchy” gene or the S allele is liked to an increased risk of depression.

  • Individuals with two copies of the long form are not at increased risk of depression
  • Individuals with two copies of the “grouchy” gene are more likely to be unhappy
  • Inheriting only one copy of the “grouchy” gene also influences the level of happiness

Antidepressants like Prozac and Zoloft target the serotonin receptor protein. Since individuals with the “grouchy” gene produce lower levels of the receptor, antidepressants are less effective as a treatment option. Uncovering the presence of the “grouchy” gene may be informative if you are taking SSRIs that target serotonin receptors.

FAQ

Here are the answers to the most frequently asked questions about this test.

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