Higher IL-6 and IL-4 Plasma Levels in Depressed Elderly Women Are Influenced by Diabetes Mellitus

Overview

Journal Trends Psychiatry Psychother

Specialty Psychiatry

Date 2022 Jul 7

PMID 35796659

Authors

Natalia S Dias

Antonio L Teixeira

Breno S Diniz

Erica L Vieira

Bernardo de M Viana

Izabela G Barbosa

Affiliations

Soon will be listed here.

Abstract

Objective: This study aimed at investigating a set of peripheral cytokines in elderly female patients with MDD, comparing them to controls, and assessing the potential influence of clinical comorbidities on inflammatory markers.

Methods: Twenty-five elderly female patients diagnosed with MDD and 19 age-matched female controls were enrolled on this study. Plasma levels of interleukin (IL)-4, IL-6, IL-10, interferon (IFN)-γ and tumor necrosis factor (TNF)-α were evaluated with commercially-available assays.

Results: Elderly female patients with MDD exhibited higher plasma IL-6 and IL-4 levels when compared to controls. In a logistic regression model taking cytokine levels, comorbidities, and age into account, only type 2 diabetes mellitus (DM2) remained associated with MDD.

Conclusion: Diabetes influences the association between MDD and higher levels of cytokines in elderly female patients. Future studies should take this evidence into account in order to mitigate confounding factors.

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