Serum levels of brain-derived neurotrophic factor (BDNF), proBDNF and plasma 3-methoxy-4-hydroxyphenylglycol levels in chronic schizophrenia

Annals of General Psychiatry
Reiji YoshimuraJun Nakamura

Abstract

We investigated the serum levels of brain-derived neurotrophic factor (BDNF), proBDNF and plasma 3-methoxy-4-hydroxyphenylglycol (MHPG) levels in patients with chronic schizophrenia. Sixty-eight patients who met the DSM-IV-TR criteria and had a chronic schizophrenia (CS) duration of ≥ 5 years were enrolled. Their serum brain-derived BDNF and proBDNF levels were measured by enzyme-linked immunosorbent assays, and their plasma MHPG levels were analyzed by high-performance liquid chromatography with electrochemical detection. The plasma MHPG levels were significantly lower in the CS group (3.9  ±  1.8 ng/ml) compared to those in the group of 32 age- and sex-matched healthy controls (5.1  ±  2.4 ng/ml). The serum BDNF levels were significantly lower in the CS group (8.9  ±  4.8 ng/ml) compared to the control group (12.2.1  ±  6.8 ng/ml). No correlation was observed between plasma MHPG and BDNF in the CS group. These results suggest that hypo-activity of noradrenergic neurons and decreased BDNF secretion exist in chronic schizophrenic patients.

References

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Methods Mentioned

BETA
enzyme-linked immunosorbent assay

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