Effect of treatment on serum glial cell line-derived neurotrophic factor in depressed patients
2008
Abstract Post-mortem studies have demonstrated a decreased number of glia, reduced glial density, and a decreased glia/neuron ratio in different brain areas of patients diagnosed with a major depressive disorder (MDD). Researchers have therefore suggested that neurotrophic growth factor systems might be involved in the aetiology of MDD. This study aimed to test whether glial cell line-derived neurotrophic factor (GDNF), a member of the transforming growth factor β family, in serum was associated with MDD. Serum concentrations were measured in MDD patients before treatment ( n = 76), after 8 weeks of antidepressant treatment ( n = 39), and in control subjects ( n = 50) using a sandwich ELISA method. Serum GDNF was significantly lower in MDD patients before treatment than in control subjects ( P P
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