Differences in Kynurenine Metabolism During Depressive, Manic, and Euthymic Phases of Bipolar Affective Disorder

2020 ◽  
Vol 20 (15) ◽  
pp. 1344-1352 ◽  
Author(s):  
Alexander Maget ◽  
Martina Platzer ◽  
Susanne A. Bengesser ◽  
Frederike T. Fellendorf ◽  
Armin Birner ◽  
...  

Background & Objectives: The kynurenine pathway is involved in inflammatory diseases. Alterations of this pathway were shown in psychiatric entities as well. The aim of this study was to determine whether specific changes in kynurenine metabolism are associated with current mood symptoms in bipolar disorder. Methods: Sum scores of the Hamilton Depression Scale, Beck Depression Inventory, and Young Mania Rating Scale were collected from 156 bipolar individuals to build groups of depressive, manic and euthymic subjects according to predefined cut-off scores. Severity of current mood symptoms was correlated with activities of the enzymes kynurenine 3-monooxygenase (ratio of 3-hydroxykynurenine/ kynurenine), kynurenine aminotransferase (ratio of kynurenic acid/ kynurenine) and kynureninase (ratio of 3-hydroxyanthranilic acid/ 3-hydroxykynurenine), proxied by ratios of serum concentrations. Results: Individuals with manic symptoms showed a shift towards higher kynurenine 3-monooxygenase activity (χ2 = 7.14, Df = 2, p = .028), compared to euthymic as well as depressed individuals. There were no differences between groups regarding activity of kynurenine aminotransferase and kynureninase. Within the group of depressed patients, Hamilton Depression Scale and kynurenine aminotransferase showed a significant negative correlation (r = -0.41, p = .036), displaying lower metabolism in the direction of kynurenic acid. Conclusion: Depression severity in bipolar disorder seems to be associated with a decreased synthesis of putative neuroprotective kynurenic acid. Furthermore, higher kynurenine 3-monooxygenase activity in currently manic individuals indicates an increased inflammatory state within bipolar disorder with more severe inflammation during manic episodes. The underlying pathophysiological mechanisms of the different affective episodes could represent parallel mechanisms rather than opposed processes.

2017 ◽  
Vol 41 (S1) ◽  
pp. S423-S424
Author(s):  
R. Jouini ◽  
H. Ben Ammar ◽  
G. Hamdi ◽  
N. Smari ◽  
A. Aissa ◽  
...  

IntroductionOverweight and obesity, despite their comorbidities and mortality, could deteriorate the quality of life of people with bipolar disorder.ObjectivesThe objective of this study is to evaluate the quality of life among patients with bipolar disorder and investigate a possible interaction between obesity and deterioration of the quality of life.AimsThis study aims to highlight the importance of preventing overweight and obesity in people with bipolar disorder to obtain an adequate quality of life subsequently an acceptable control of the illness.MethodsFifty euthymic bipolar patients (Hamilton Depression Scale score ≤ 8, and Young Mania Rating Scale score ≤ 6) received the Medical Outcomes Study 36-Item Short-Form Health Survey in Arabic validated version in order to investigate the quality of life.ResultsWe examined 50 euthymic bipolar patients (60% men, 40% women). The average age was 46, 5 years (23–70). Most patients (69%) were over weighted (BMI ≥ 25.0 kg/m2) (body mass index), of whom 40% were obese (BMI ≥ 30.0 kg/m2). Seventy-two percent of the investigated patients had an affected quality of life (score < 66.7). The mental items were deteriorated in 80% of the cases. An affected quality of life was correlated with obesity. The BMI was significantly and negatively correlated with the scores of dimensions D4 (mental health) and D8 (perceived health) (P < 0.01).ConclusionThe investigation of quality of life in people with mental disorder enables to reveal the social handicap caused by these illnesses consequently emphasizes health care in mental affections.Disclosure of interestThe authors have not supplied their declaration of competing interest.


2021 ◽  
Vol 12 ◽  
Author(s):  
Zuoli Sun ◽  
Qijing Bo ◽  
Zhen Mao ◽  
Feng Li ◽  
Fan He ◽  
...  

Dopamine-β-hydroxylase (DβH) is an enzyme converting dopamine to norepinephrine, a key neurotransmitter in mood disorders, such as major depressive disorder (MDD) and bipolar disorder (BD). Due to overlapping symptomology of unipolar and bipolar depression, the present study attempted to explorer if the plasma DβH activity could discriminate the depressive episodes of BD from MDD. The aim of this study was to compare the plasma DβH activity among MDD patients (n = 104), BD patients (n = 101), and healthy controls (n = 160). Clinical characteristics and cognitive function were assessed using the Young Mania Rating Scale (YMRS), Hamilton Depression Scale (HAM-D), Hamilton Anxiety Scale (HAM-A), Patient Health Questionnaire-9 (PHQ-9), and Repeatable Battery for the Assessment of Neuropsychological Status (RBANS). Our data showed a lower plasma DβH activity in patients with BD, not MDD, than that in controls. For the BD patients, the plasma DβH activities were negatively correlated with HAM-D scores and HAM-A scores. However, there was no significant correlation between plasma DβH activity and severity of depressive symptoms in MDD patients. No significant correlation between DβH activities and cognitive assessments neither in BD nor in MDD patients. The present study provides evidence that BD is associated with decreased circulating DβH activity.


2014 ◽  
Vol 36 (1) ◽  
pp. 16-22 ◽  
Author(s):  
Fernanda Novis ◽  
Patricia Cirillo ◽  
Rafael Assis da Silva ◽  
Ana Letícia Santos ◽  
Luciana Angélica Silva Silveira ◽  
...  

INTRODUCTION: Prospective studies have shown that the course of bipolar disorder (BD) is characterized by the persistence of symptoms, predominantly depression, along most of the time. However, to our knowledge, no studies in Latin America have investigated it. OBJECTIVES: To replicate international studies using a Brazilian sample to prospectively analyze treatment outcomes in the first year and to determine potential chronicity factors. METHODS: We followed up 102 patients with BD for 12 months and evaluated the number of months with affective episodes and the intensity of manic and depressive symptoms using the Young Mania Rating Scale (YMRS) and the Hamilton Depression Scale (HAM-D17). Sociodemographic and retrospective clinical data were examined to determine possible predictors of outcome. RESULTS: Almost 50% of the patients had symptoms about half of the time, and there was a predominance of depressive episodes. Disease duration and number of depressive episodes were predictors of chronicity. Depressive polarity of the first episode and a higher number of depressive episodes predicted the occurrence of new depressive episodes. CONCLUSION: In general, BD outcome seems to be poor in the first year of monitoring, despite adequate treatment. There is a predominance of depressive symptoms, and previous depressive episodes are a predictor of new depressive episodes and worse outcome.


2016 ◽  
Vol 33 (S1) ◽  
pp. s236-s237
Author(s):  
W.M. Bahk ◽  
M.D. Kim ◽  
Y.E. Jung ◽  
Y.S. Woo ◽  
J. Lee ◽  
...  

ObjectivesThe Bipolar Depression Rating Scale (BDRS) is a scale for assessment of the clinical characteristics of bipolar depression. The primary aims of this study were to describe the development of the Korean version of the BDRS (K-BDRS) and to establish more firmly its psychometric properties in terms of reliability and validity.MethodsThe study included 141 patients (62 male and 79 female) who had been diagnosed with bipolar disorder, were currently experiencing symptoms of depression, and were interviewed using the K-BDRS. Other measures included the Montgomery and Asberg Depression Scale (MADRS), the 17-item Hamilton Depression Scale (HAMD), and the Young Mania Rating Scale (YMRS). Additionally, the internal consistency, concurrent validity, inter-rater reliability, and test-retest reliability of the K-BDRS were evaluated.ResultsThe Cronbach's α-coefficient for the K-BDRS was 0.866, the K-BDRS exhibited strong correlations with the HAMD (r = 0.788) and MADRS (r = 0.877), and the mixed symptoms score of the K-BDRS was significantly correlated with the YMRS (r = 0.611). An exploratory factor analysis revealed three factors that corresponded to psychological depressive symptoms, somatic depressive symptoms, and mixed symptoms.ConclusionsThe present findings suggest that the K-BDRS has good psychometric properties and is a valid and reliable tool for assessing depressive symptoms in patients with bipolar disorder.Disclosure of interestThe authors have not supplied their declaration of competing interest.


2015 ◽  
Vol 37 (3) ◽  
pp. 152-156 ◽  
Author(s):  
Rafael de Assis da Silva ◽  
Daniel C. Mograbi ◽  
Evelyn V. M. Camelo ◽  
Jaqueline Bifano ◽  
Mayra Wainstok ◽  
...  

Objective: To evaluate whether having general insight into bipolar disorder and its symptoms is affected by the mood state of the patient, using the Insight Scale for Affective Disorders, a hetero-application scale for people with mood disorders.Methods: Ninety-five patients with bipolar disorder were evaluated and divided into different groups according to the mood state presented during assessment (i.e., euthymia, mania and depression). Sociodemographic and clinical data (Hamilton Depression Scale, Young Mania Rating Scale, and Clinical Global Impressions Scale) were recorded. Insight was evaluated using the Insight Scale for Affective Disorders.Results: Patients with bipolar disorder in mania show less insight about their condition than patients in depression or euthymia, and less insight about their symptoms than patients with depression, with the exception of awareness of weight change.Conclusions: Loss of insight during mania may have important implications for treatment compliance and adherence and needs to be taken into account in the clinical management of people with bipolar disorder.


Author(s):  
Jose Manuel Montes ◽  
Ana Pascual ◽  
Sandra Molins Pascual ◽  
Carmen Loeck ◽  
Maria Belen Gutiérrez Bermejo ◽  
...  

Mixed states are highly prevalent in patients with bipolar disorder and require comprehensive scales. Considering this, the current study aims to develop a measure to assess the full spectrum of clinical manifestations of bipolar disorder. A sample of 88 patients was evaluated; the Hamilton Depression Scale (HAM-D), Montgomery-Asberg Depression Scale (MADRS), and the Young Mania Rating Scale (YMRS) were applied, together with the preliminary version of the Scale for the Assessment of Episodes in Bipolar Disorder (SAEBD). After analyzing the appropriateness and statistical properties of the items, discriminant analysis and analysis of diagnostic capacity were performed. The discriminant functions correctly classified 100% of the cases in euthymia, predominant depressive symptoms or mixed symptoms, as well as 92.3% of the cases with predominant manic symptoms. Overall, the functions correctly classified 98.9% of the cases. The area under the curve (0.935) showed high capacity to discriminate between clinical and non-clinical cases (i.e., in euthymia). The SAEBD sensitivity was 0.95, specificity was 0.71, the Positive Predictive Value (PPV) was 0.88, the Negative Predictive Value (NPV) was 0.87, the Positive Likelihood Ratio (+LR) was 3.33, and the Negative Likelihood Ratio (−LR) was 0.07. In conclusion, the SAEBD is a promising scale that shows high reliability and validity, as well as diagnostic utility as a screening tool for use in diverse health care settings.


2009 ◽  
Vol 24 (S1) ◽  
pp. 1-1
Author(s):  
W. Drozdz ◽  
A. Borkowska

Current diagnostic systems (DSM-IV-TR and ICD-10) do not include depressive mixed state (DMS) as a separate category. However, both historical descriptions and data from recent research clearly indicate that cooccurrence of (hypo)maniacal and depressive symptoms is standard in clinical picture of affective disorders. Most frequently employed criterion for DMS is the presence of at least three symptoms of (hypo)mania for 7 days during a major depressive episode. Not only formal diagnostic criteria for DMS are lacking but also psychometric assessment tools (for example the Hamilton Depression Scale or the MADRS) were designed around the features of “classical” depression. The other obstacles to recognize DMS could be lack of insight into the (hypo)maniacal symptoms in patients and cognitive dysfunctions present during an episode. On the other hand, newly created instrument, the Bipolar Depression Rating Scale, may assist clinical evaluation of DMS. Despite predominating depressive symptomatology, the principles of treatment of DMS suggest avoidance of antidepressant monotherapy in favor of mood stabilizers' administration. Actually DMS may emerge as a complication of antidepressant monotherapy in some bipolar patients or may be induced with interferon-alpha treatment in some chronic hepatitis C patients. Important consequences of both spontaneous and drug-induced DMS could be the roughening of affective symptomatology, resistance to antidepressants and the increase of suicidality. Thorough appraisal of symptoms seen in patients with affective disorders for indicators of DMS could have critical consequences for functional outcomes.


2007 ◽  
Vol 101 (1) ◽  
pp. 291-301 ◽  
Author(s):  
Ana Luiza Camozzato ◽  
Maria Paz Hidalgo ◽  
Sônia Souza ◽  
Márcia L. F. Chaves

The association among items of the self-reported version of the Hamilton Depression Scale (Carroll Rating Scale), answered according to a memory of a maximally disturbing event experienced, and respondents' sex was examined in a nonclinical sample of 320 college students, 164 women ( M age = 21.7 yr., SD = 3.6) and 156 men ( M age = 23.5 yr., SD = 5.8). An assessment of sex bias was also evaluated. Multiple regression analysis showed that statements regarding unhappiness, urge to cry, dizziness and faintness, and waking in the middle of the night were significantly associated with women. Removal of these items from the Carroll Rating Scale Total scores eliminated the sex differences in depression rates. Items that displayed significant sex bias were those regarding behavior and emotions commonly attributed to women within the general population.


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