E.D. Kasyanov
Bekhterev National Medical Research Center for Psychiatry and Neurology
D.V. Pinakhina
Bekhterev National Medical Research Center for Psychiatry and Neurology;
ITMO University
G.V. Rukavishnikov
Bekhterev National Medical Research Center for Psychiatry and Neurology
L.V. Malyshko
Bekhterev National Medical Research Center for Psychiatry and Neurology
N.G. Neznanov
Bekhterev National Medical Research Center for Psychiatry and Neurology;
Pavlov First Saint-Petersburg State Medical University
A.O. Kibitov
Serbsky National Medical Research Center for Psychiatry and Narcology
G.E. Mazo
Bekhterev National Medical Research Center for Psychiatry and Neurology
Anhedonia in mood disorders and somatic diseases: results of exploratory Mendelian randomization analysis
Journal: S.S. Korsakov Journal of Neurology and Psychiatry. 2023;123(4‑2): 65‑73
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To cite this article:
Kasyanov ED, Pinakhina DV, Rakitko AS, Vergasova EO, Yermakovich DP, Rukavishnikov GV, Malyshko LV, Popov YaV, Kovalenko EV, Ilinskaya AYu, Kim AA, Plotnikov NA, Neznanov NG, Ilinsky VV, Kibitov AO, Mazo GE. Anhedonia in mood disorders and somatic diseases: results of exploratory Mendelian randomization analysis. S.S. Korsakov Journal of Neurology and Psychiatry.
2023;123(4‑2):65‑73. (In Russ.)
https://doi.org/10.17116/jnevro202312304265
To conduct an exploratory Mendelian randomization analysis of the causal relationships of anhedonia with a wide range of psychiatric and somatic phenotypes based on the genetic data of participants in a population study.
This cross-sectional study included 4520 participants, of which 50.4% (n=2280) were female. The mean age was 36.8 (S.D.=9.8) years. Participants were pheno-nailed based on the DSM-5 criteria for anhedonia in the framework of depression. An episode of anhedonia exceeding 2 weeks during life was reported by 57.6% (n=2604) of participants. A genome-wide association study (GWAS) of the anhedonia phenotype was performed, as well as a Mendelian randomization analysis using summary statistics of large-scale GWASs on psychiatric and somatic phenotypes.
The GWAS on anhedonia did not reveal the variants with genome-wide significant association (p<10–8). The most significant (p=9.71×10–7) was the variant rs296009 (chr5:168513184) in an intron of the slit guidance ligand 3 (SLIT3) gene. Using Mendelian randomization, nominally significant (p<0.05) causal associations of anhedonia with 24 phenotypes were identified, which can be divided into 5 main groups: psychiatric/neurological diseases, inflammatory diseases of the digestive system, respiratory diseases, oncological diseases and metabolic disorders. The most significant causal effects of anhedonia were found for breast cancer (p=0.0004, OR=0.9986, 95% confidence interval (CI) (0.9978—0.999)), minimal depression phenotype (p=0.009, OR=1.004, 95% CI (1.001—1.007)), as well as for apolipoprotein A (p=0.01, OR=0.973, 95% CI (0.952—0.993)) and respiratory diseases (p=0.01, OR=0.9988, 95% CI (0.9980—0.9997)).
The polygenic nature of anhedonia may cause the risks of comorbidity of this phenotype with a wide range of somatic diseases, as well as may be associated with mood disorders.
Authors:
E.D. Kasyanov
Bekhterev National Medical Research Center for Psychiatry and Neurology
D.V. Pinakhina
Bekhterev National Medical Research Center for Psychiatry and Neurology;
ITMO University
G.V. Rukavishnikov
Bekhterev National Medical Research Center for Psychiatry and Neurology
L.V. Malyshko
Bekhterev National Medical Research Center for Psychiatry and Neurology
N.G. Neznanov
Bekhterev National Medical Research Center for Psychiatry and Neurology;
Pavlov First Saint-Petersburg State Medical University
A.O. Kibitov
Serbsky National Medical Research Center for Psychiatry and Narcology
G.E. Mazo
Bekhterev National Medical Research Center for Psychiatry and Neurology
Received:
25.11.2022
Accepted:
25.12.2022
List of references:
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