Plasma adiponectin elevation in elderly individuals with subsyndromal depression
Hyun-Ghang Jeong1, Beom Jun Min, Soo Lim
1Department of Psychiatry, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Republic of Korea.
Psychoneuroendocrinology
|December 2, 2011
Summary
Plasma adiponectin levels were elevated in elderly individuals with subsyndromal depression, particularly in men. This suggests adiponectin may play a compensatory role in depressive mood states.
Area of Science:
- Endocrinology
- Psychiatry
- Gerontology
Background:
- Adiponectin, an adipokine, is implicated in depression, but its precise role in depressive disorders remains unclear.
- Understanding the association between adiponectin and depression is crucial for developing targeted interventions.
Purpose of the Study:
- To investigate the association between plasma adiponectin concentrations and depressive disorders in elderly Koreans.
- To explore potential differences in adiponectin levels across diagnostic groups of depression.
Main Methods:
- Plasma adiponectin levels were measured in 785 elderly Koreans, including individuals with major depressive disorder (MDD), minor depressive disorder (MnDD), and subsyndromal depression (SSD), alongside non-depressed controls (NC).
- Statistical analyses, including ANOVA and Tukey's post hoc tests, were used to compare adiponectin levels among groups and correlations were examined using depression rating scales.
Main Results:
- Plasma adiponectin levels significantly differed among diagnostic groups (P=0.002).
- Elevated adiponectin was observed in SSD patients compared to NC (P=0.001), notably in men.
- Positive correlations between adiponectin and depression scores (Hamilton and Geriatric Depression Scales) were found in subjects without MDD/MnDD, primarily in men.
Conclusions:
- Circulating adiponectin concentration may play a compensatory role in the process of depressive mood.
- The findings highlight a potential sex-specific association between adiponectin and depression, particularly in subsyndromal presentations.
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