Sürdürülebilir Kalkınma Amaçları

Yazarlar

  • MakaleAçık Erişim2026Scopus SJRQ4
    Unipolar mania as a distinct clinical presentation: Differences in illness course and psychosocial functioning compared with bipolar I disorder

    Soygenc, Elcin Izmir; Onur, Ozge Sahmelikoglu

    Objective: Growing evidence suggests that unipolar mania (UM) may represent a distinct clinical condition rather than a subtype of bipolar disorder (BD). The present study aimed to compare the sociodemographic characteristics, clinical features, and psychosocial functioning of euthymic patients with UM or bipolar I disorder (BD-I) and healthy control subjects. Method: This cross-sectional study included euthymic patients with UM (n=58), BD-I (n=58), and healthy control subjects (n=58). Diagnoses were established according to the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5) criteria, and euthymia was confirmed using the Young Mania Rating Scale, Beck Depression Inventory, and Positive and Negative Syndrome Scale. Psychosocial functioning was assessed using the Functioning Assessment Short Test (FAST) in all groups and the Bipolar Disorder Functioning Scale (BDFS) in the UM and BD-I groups. Sociodemographic and clinical data were collected using a structured form. Group comparisons were conducted using appropriate parametric and nonparametric statistical analyses. Results: Both patient groups demonstrated significantly impaired psychosocial functioning compared with healthy controls across all FAST subdomains (p<0.05). On the BDFS, patients with UM showed better emotional functioning and less social withdrawal than patients with BD-I (p<0.05); however, total functioning scores did not differ significantly between groups (p>0.05). Clinically, UM was characterized by manic-predominant onset, higher rates of mood-congruent psychotic symptoms, longer episode duration, and more frequent hospitalizations. Suicidal behavior and total number of mood episodes were higher among patients with BD-I (p<0.05). In the final logistic regression model, mood-congruent psychotic symptoms during the first episode were independently associated with UM relative to BD-I, whereas a history of suicide attempts was associated with lower odds of UM (p<0.05). Conclusion: Although both groups exhibited functional impairment, patients with UM demonstrated relatively better emotional and social functioning than those with BD-I. These findings suggest that UM may be associated with a distinct functional profile, with potential implications for prognosis and treatment planning. Incorporating functional outcomes into the clinical assessment of UM may help optimize therapeutic strategies and improve long-term psychosocial outcomes.

    • SDG 3 · Sağlık ve Kaliteli Yaşam
  • MakaleYalnız künye2016Scopus SJRQ1
    Abnormal white matter integrity as a structural endophenotype for bipolar disorder

    Sariçiçek, A.; Zorlu, N.; Yalin, N.; Hidiroglu, C.; Çavusoglu, B.; Ceylan, D.; Ada, E.; Tunca, Z.; Özerdem, A.

    Background. Several lines of evidence suggest that bipolar disorder (BD) is associated with white matter (WM) pathology. Investigation of unaffected first-degree relatives of BD patients may help to distinguish structural biomarkers of genetic risk without the confounding effects of burden of illness, medication or clinical state. In the present study, we applied tract-based spatial statistics to study WM changes in patients with BD, unaffected siblings and controls. Method. A total of 27 euthymic patients with BD type I, 20 unaffected siblings of bipolar patients and 29 healthy controls who did not have any current or past diagnosis of Axis I psychiatric disorders were enrolled in the study. Results. Fractional anisotropy (FA) was significantly lower in BD patients than in the control group in the corpus callosum, fornix, bilateral superior longitudinal fasciculus, inferior longitudinal fasciculus, inferior fronto-occipital fasciculus, anterior thalamic radiation, posterior thalamic radiation, cingulum, uncinate fasciculus, superior corona radiata, anterior corona radiata and left external capsule. In region-of-interest (ROI) analyses, we found that both unaffected siblings and bipolar patients had significantly reduced FA in the left posterior thalamic radiation, the left sagittal stratum, and the fornix compared with healthy controls. Average FA for unaffected siblings was intermediate between the healthy controls and bipolar patients within these ROIs. Conclusions. Decreased FA in the fornix, left posterior thalamic radiation and left sagittal stratum in both bipolar patients and unaffected siblings may represent a potential structural endophenotype or a trait-based marker for BD.

    AtıfWoS45
    Web of SciencePubMedİncele
  • MakaleAçık Erişim2016Scopus SJRQ1
    Regulators of mitochondrial complex I activity: A review of literature and evaluation in postmortem prefrontal cortex from patients with bipolar disorder

    Duong, Angela; Che, Yi; Ceylan, Deniz; Pinguelo, Arsene; Andreazza, Ana C.; Young, L. Trevor; Berk, Michael

    Phenomenologically, bipolar disorder (BD) is characterized by biphasic increases and decreases in energy. As this is a state-related phenomenon, identifying regulators responsible for this phasic dysregulation has the potential to uncover key elements in the pathophysiology of BD. Given the evidence suggesting mitochondrial complex I dysfunction in BD, we aimed to identify the main regulators of complex I in BD by reviewing the literature and using the published microarray data to examine their gene expression profiles. We also validated protein expression levels of the main complex I regulators by immunohistochemistry. Upon reviewing the literature, we found PARK-7, STAT-3, SIRT-3 and IMP-2 play an important role in regulating complex I activity. Published microarray studies however revealed no significant direction of regulation of STAT-3, SIRT-3, and IMP-2, but a trend towards downregulation of PARK 7 was observed in BD. Immunocontent of DJ-1 (PARK-7-encoded protein) were not elevated in post mortem prefrontal cortex from patients with BD. We also found a trend towards upregulation of DJ-1 expression with age. Our results suggest that DJ-1 is not significantly altered in BD subjects, however further studies are needed to examine DJ-1 expression levels in a cohort of older patients with BD. (C) 2015 Elsevier Ireland Ltd. All rights reserved.

    • SDG 3 · Sağlık ve Kaliteli Yaşam
    AtıfWoS10OpenAlex12
    Web of SciencePubMedİncele
  • MakaleYalnız künye2015Scopus SJRQ1
    Neuroanatomical correlates of genetic risk for bipolar disorder: A voxel-based morphometry study in bipolar type I patients and healthy first degree relatives

    Sariçiçek, Aybala; Yalin, Nefize; Hidiroglu, Ceren; Çavusoglu, Berrin; Tas, Cumhur; Ceylan, Deniz; Zorlu, Nabi; Ada, Emel; Tunca, Zeliha; Özerdem, Aysegul

    Background: Bipolar disorder (BD) is a highly heritable mental illness which is associated with neuroanatomical abnormalities. Investigating healthy individuals at high genetic risk for bipolar disorder may help to identify neuroanatomical markers of risk and resilience without the confounding effects of burden of illness or medication. Methods: Structural magnetic resonance imaging scans were acquired from 30 euthymic patients with BD-1 (BP), 28 healthy first degree relatives of BD-I patients (HR), and 30 healthy controls (HC). Data was analyzed using DARTEL for voxel based morphometry in SPM8. Results: Whole-brain analysis revealed a significant main effect of group in the gray matter volume in bilateral inferior frontal gyrus, left parahippocampal gyrus, left lingual gyrus and cerebellum, posterior cingulate gyrus, and supramarginal gyrus (alphasim corrected (<= 0.05 FWE)). Post-hoc t-tests showed that inferior frontal gyrus volumes were bilaterally larger both in BP and HR than in HC. BP and HR also had smaller cerebellar volume compared with HC. In addition, BP had smaller left lingual gyms volume, whereas HR had larger left parahippocampal and supramarginal gyms volume compared with HC. Limitations: This study was cross-sectional and the sample size was not large. All bipolar patients were on medication, therefore we were not able to exclude medication effects in bipolar group in this study. Conclusions: Our findings suggest that increased inferior frontal gyms and decreased cerebellar volumes might be associated with genetic predisposition for bipolar disorder. Longitudinal studies are needed to better understand the predictive and prognostic value of structural changes in these regions. (C) 2015 Elsevier B.V. All rights reserved.

    • SDG 3 · Sağlık ve Kaliteli Yaşam
    AtıfWoS49OpenAlex58
    Web of SciencePubMedİncele