ArticleEating and weight disorders : EWD2026
Associations between thyroid hormones and biochemical metabolism in major depressive disorder patients with and without comorbid eating disorders.
Article in Eating and weight disorders : EWD, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
objectivesThe underlying mechanism of major depressive disorder (MDD) with eating disorder (ED) remains unclear. We aim to clarify the characteristic changes of THs and brain neurometabolic alterations in ED, and to explore their relationships.
methodsThe study included 28 individuals with MDD and ED, 81 individuals with MDD without ED, and 37 age-matched healthy controls (HCs). Serum TH levels were assessed, and
resultsIn both MDD with ED and MDD without ED cohorts, free tri-iodothyronine (FT3) levels were significantly lower compared to HCs, whereas free thyroxine (FT4) and total thyroxine (TT4) levels were elevated. Significantly lower NAA/Cr ratios were observed in the right thalamus and higher NAA/Cr ratios in the left cerebellum in both MDD with ED and MDD without ED compared to HCs. Neurometabolic factors and THs levels achieved an ROC curve area of 0.830 in differentiating MDD with ED from MDD without ED. In addition, serum FT3 and TT4 levels showed a positive correlation with NAA/Cr in the eft cerebellum in cases of MDD with ED.
conclusionsOur findings reveal concurrent thyroid hormone irregularities and neurometabolic changes in the thalamic-cerebellum circuitry in MDD with ED, providing preliminary insights into the neurobiology of abnormal eating behaviors in depression. Given the cross-sectional design, these results are exploratory and require validation. Level of evidence Level IV, cross-sectional study.
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