Citation

Hernández-Díaz Y, Genis-Mendoza AD, González-Castro TB, Tovilla-Zárate CA, Juárez-Rojop IE, López-Narváez ML, Nicolini H. Genes (Basel) 2021; 12(10): e1608.

Copyright

(Copyright © 2021, MDPI: Multidisciplinary Digital Publications Institute)

DOI

10.3390/genes12101608

PMID

34681002

PMCID

PMC8536196

Abstract

BACKGROUND: Suicide behavior (SB) has been highly associated with the response to stress and the hypothalamic-pituitary-adrenal (HPA) axis. The aim of this study was to summarize the results obtained in genetic studies that analyzed the HPA axis-stress pathway and SB through a systematic review.

METHODS: We performed an online search in PubMed, EBSCO, Web of Science, Scopus, and PsycoInfo databases up to May 2021. We followed the PRISMA guidelines for systematic reviews. We included case-control and expression studies that provided data on mRNA expression and single-nucleotide polymorphisms of genes associated with SB.

RESULTS: A total of 21,926 individuals participated across 41 studies (not repeats); 34 studies provided data on single-nucleotide polymorphisms in 21,284 participants and 11 studies reported data on mRNA expression in 1034 participants. Ten genes were identified: FKBP5, CRH, CRHBP, CRHR1, CRHR2, NR3C1, NR3C2, SKA2, MC2R, and POMC.

CONCLUSIONS: Our findings suggest that key stress pathway genes are significantly associated with SB and show potential as biomarkers for SB.

Language: en

Keywords

suicide; association; genetic; stress