J. Evans et al., ASSOCIATION OF SHORT ALLELES OF A VNTR OF THE SEROTONIN TRANSPORTER GENE WITH ANXIETY SYMPTOMS IN PATIENTS PRESENTING AFTER DELIBERATE SELF-HARM, Neuropharmacology, 36(4-5), 1997, pp. 439-443
The polymorphism of a variable number tandem repeat (VNTR) region of t
he serotonin transporter gene consists of three alleles containing, re
spectively, 9 (STin2.9), 10 (STin2.10) and 12 (STin2.12) copies of a r
epetitive element. The frequencies of the three alleles in 384 individ
uals presenting after deliberate self harm were the same as a group of
346 controls. However, ratings of anxiety (and state anger) were high
er in those patients with genotypes including the shorter repetitive e
lements. The findings support the hypothesis that, in this group of pa
tients with low rates of severe psychiatric disorder, allelic variatio
n in the serotonin transporter gene may contribute to the expression o
f anxiety symptoms. (C) 1997 Elsevier Science Ltd.