Depression Treatment: Cerebrospinal Fluid Metabolome in Mood Disorders-Remission State Has a Unique Metabolic Profile.

Cerebrospinal Fluid Metabolome in Mood Disorders-Remission State has a Unique Metabolic Profile.

Filed under: Depression Treatment

Sci Rep. 2012; 2: 667
Kaddurah-Daouk R, Yuan P, Boyle SH, Matson W, Wang Z, Zeng ZB, Zhu H, Dougherty GG, Yao JK, Chen G, Guitart X, Carlson PJ, Neumeister A, Zarate C, Krishnan RR, Manji HK, Drevets W

Targeted metabolomics provides an approach to quantify metabolites involved in specific molecular pathways. We applied an electrochemistry-based, targeted metabolomics platform to define changes in tryptophan, tyrosine, purine and related pathways in the depressed and remitted phases of major depressive disorder (MDD). Biochemical profiles in the cerebrospinal fluid of unmedicated depressed (n = 14; dMDD) or remitted MDD subjects (n = 14; rMDD) were compared against those in healthy controls (n = 18; HC). The rMDD group showed differences in tryptophan and tyrosine metabolism relative to the other groups. The rMDD group also had higher methionine levels and larger methionine-to-glutathione ratios than the other groups, implicating methylation and oxidative stress pathways. The dMDD sample showed nonsignificant differences in the same direction in several of the metabolic branches assessed. The reductions in metabolites associated with tryptophan and tyrosine pathways in rMDD may relate to the vulnerability this population shows for developing depressive symptoms under tryptophan or catecholamine depletion.
HubMed – depression

 

Findings of multidimensional instruments for determining psychopathology in diabetic and non-diabetic hemodialysis patients.

Filed under: Depression Treatment

Int J Clin Exp Med. 2012; 5(4): 346-54
Celik G, Annagür BB, Y?lmaz M, Kara F

The aim of this study was to expand the research on psychiatric complications of end-stage renal disease (ESRD), as well as to examine the prevalence of a broad range of psychopathology in diabetic and non-diabetic hemodialysis (HD) patients.One hundred nineteen HD patients were invited to enter the cross-sectional study. To assess quality of life, quality of sleep, mental status and depression and anxiety symptoms, the 36-item Short Form, Pittsburgh Sleep Quality Index (PSQI), Mini-Mental State Examination and Hospital Anxiety and Depression Scale, respectively, were used.The mean age of all patients was 56.9±16.1 years; 54 (45.4%) were female. In the diabetic patients group, 84.8% of the patients had low MCS scores, and 89.2% patients had low PCS scores; 73.9% were poor sleepers; 63.0% had cognitive decline; 62.0% patients were depressive symptoms; and 28.3%had symptoms of anxiety. When comparing the diabetic and non-diabetic patients, the diabetic patients had lower role-emotional, sleep duration, and sleep efficiency scores.Incorporating a standard assessment and, eventually, treatment of psychopathologic symptoms into the care provided to diabetic and hemodialysis patients might improve quality of life and sleep, depressive symptoms and, reduce mortality risk.
HubMed – depression

 

Serotonergic dysfunction in patients with bipolar disorder assessed by the loudness dependence of the auditory evoked potential.

Filed under: Depression Treatment

Psychiatry Investig. 2012 Sep; 9(3): 298-306
Lee KS, Park YM, Lee SH

The loudness dependence of the auditory evoked potential (LDAEP) is suggested to be a marker of serotonin system function. This study explored the LDAEP of multiple mood statuses (depression, mania, and euthymia) and its clinical implication in bipolar disorder patients.A total of 89 subjects, comprising 35 patients with bipolar disorder, 32 patients with schizophrenia, and 22 healthy controls were evaluated. The bipolar disorder cases comprised 10 depressed patients, 15 patients with mania, and 10 euthymic patients. The N1/P2 peak-to-peak amplitudes were measured at 5 stimulus intensities, and the LDAEP was calculated as the slope of the linear regression. Both cortical and source LDAEP values were calculated.LDAEP varied according to mood statuses, and was significantly stronger in cases of euthymia, depression, and mania. Cortical LDAEP was significantly stronger in patients with bipolar euthymia compared with schizophrenia, stronger in bipolar depression than in schizophrenia, stronger in healthy controls than in schizophrenia patients, and stronger in healthy controls than in patients with bipolar mania. Source LDAEP was significantly stronger in patients with bipolar euthymia, bipolar depression, and bipolar mania compared with schizophrenia, stronger in bipolar euthymia than in bipolar mania. Psychotic features weakened the source LDAEP relative to nonpsychotic features. The severity of the depressive symptom was negatively correlated with source LDAEP.These findings suggest that the serotonin activity of patients with bipolar disorder may vary according to mood status. A longitudinal follow-up study should be pursued using drug-naive subjects.
HubMed – depression

 

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