Abstract
The aims of this small pilot study were to explore the association between premenstrual symptom severity and two genes from the gamma-aminobutyric acid (GABA) pathway: steroid-5-alpha-reductase, alpha polypeptide 1 (SRD5A1) and gamma-aminobutyric acid receptor subunit alpha-4 (GABRA4). Saliva samples were obtained from a convenience sample of 19 Caucasian females ages 18–25 years, ten cases and nine controls. Deoxyribonucleic acid (DNA) was isolated, and genotyping performed on ten single nucleotide polymorphisms (SNPs). Ten percent of cases and 44% of controls had the cytosine/cytosine (C/C) genotype for the SRD5A1 SNP, rs501999 indicating that this genotype may protect women against severe premenstrual symptoms. Replication of this study using an adequately powered sample size is warranted.
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