Alterations of serum macro-minerals and trace elements are associated with major depressive disorder: a case-control...

Area of Science:

• Biochemistry
• Clinical Psychology
• Nutritional Psychiatry

Background:

• Major depressive disorder (MDD) presents complex pathophysiology with unclear origins.
• Genetic, neurobiological, and environmental factors are known contributors to depression.
• Emerging research highlights altered serum macro-mineral (MM) and trace element (TE) levels as potential factors in mental disorders.

Purpose of the Study:

• To investigate serum concentrations of specific macro-minerals (calcium, magnesium) and trace elements (copper, iron, manganese, selenium, zinc) in patients with MDD.
• To determine the association between these serum element levels and the risk of developing depression.
• To explore potential disturbances in element homeostasis in the context of MDD.

Main Methods:

• A prospective case-control study involving 247 MDD patients and 248 age- and sex-matched healthy controls.
• Serum MM and TE levels were quantified using atomic absorption spectroscopy (AAS).
• Statistical analyses included independent sample t-tests and Pearson's correlation to assess differences and relationships.

Main Results:

• MDD patients exhibited significantly lower serum concentrations of calcium, magnesium, iron, manganese, selenium, and zinc compared to controls (p < 0.05).
• Conversely, serum copper levels were significantly elevated in MDD patients relative to controls (p < 0.05).
• Observed inter-elemental relationships indicated a disruption in element homeostasis among MDD patients.

Conclusions:

• Altered serum concentrations of macro-minerals and trace elements are implicated as significant contributors to the pathogenesis of MDD.
• These elemental alterations in MDD patients appear to occur independently.
• The findings suggest that serum levels of these elements could serve as a prognostic tool for assessing depression risk.