Chunk #8 — Materials and methods — Genetic data

Source

Financial difficulties but not other types of recent negative life events show strong interactions with 5-HTTLPR genotype in the development of depressive symptoms.

Embedded

yes

Text

DNA extraction was carried out on self-provided buccal mucosa cells of the subjects by validated methods.42 The 5-HTTLPR genotype was determined as described elsewhere.36 All laboratory work was performed under the ISO 9001:2000 quality-management requirements and was blinded with regard to phenotype.