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Related Concept Videos

Depressive Disorders: Etiology01:27

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Depressive disorders result from a complex interplay of biological, psychological, and sociocultural factors, each contributing uniquely to the development and persistence of the condition. Understanding these factors provides critical insight into the multifaceted nature of depression.
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Related Experiment Video

Updated: May 1, 2026

Animal Models of Depression - Chronic Despair Model CDM
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Molecular mechanisms underlying psoriasis and depression: an integrated analysis using mendelian randomization,

Baojun De1,2, Wenfeng Bao1, Nagongbilige Hea1,2

  • 1Department of Psychosomatic Medicine, Inner Mongolia Traditional Chinese and Mongolian Medical Research Institute, Hohhot, Inner Mongolia, China.

Frontiers in Molecular Medicine
|April 30, 2026
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Summary

Psoriasis and depression comorbidity is mediated by four key genes involved in inflammation and immune metabolism. Folic acid shows therapeutic potential for precision treatment of these interconnected conditions.

Keywords:
comorbiditydepressionferroptosisfolic acidimmune cells infiltrationmendelian randomizationmulti-omics integrationpsoriasis

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Area of Science:

  • Immunology
  • Genetics
  • Pharmacology

Background:

  • Psoriasis is a systemic inflammatory disease frequently co-occurring with depression.
  • Depression screening is crucial due to links between mood disorders, inflammation, and functional impairment in psoriasis patients.

Purpose of the Study:

  • To investigate the underlying genetic and molecular mechanisms of psoriasis-depression comorbidity.
  • To identify potential therapeutic targets for precision medicine.

Main Methods:

  • Utilized Mendelian randomization (MR), transcriptomics, and single-cell omics.
  • Integrated data from public databases to analyze gene associations.
  • Employed LASSO regression to identify key genes.

Main Results:

  • Identified 340 psoriasis-related and 307 depression-related eQTL-gene associations, with 9 intersecting.
  • Discovered four key genes (MAP3K20, WARS2, TBXAS1, ABHD15) enriched in inflammatory and metabolic pathways.
  • Observed correlations between these genes, immune infiltration, ferroptosis, and specific cell types. Folic acid targeted three genes.

Conclusions:

  • The four identified genes mediate psoriasis-depression comorbidity through inflammation, immune metabolism, and ferroptosis.
  • Folic acid pathways present therapeutic value, supporting precision therapy development.