scholarly journals Corpus callosum changes in euthymic bipolar affective disorder

2014 ◽  
Vol 204 (2) ◽  
pp. 129-136 ◽  
Author(s):  
Adrian J. Lloyd ◽  
Heba E. Ali ◽  
David Nesbitt ◽  
P. Brian Moore ◽  
Allan H. Young ◽  
...  
Keyword(s):  
Bipolar Disorder ◽  
Corpus Callosum ◽  
Signal Intensity ◽  
Mood State ◽  
Bipolar Affective Disorder ◽  
Control Group ◽  
Healthy Controls ◽  
Bipolar Group ◽  
Intensity Changes ◽  
Glial Function

BackgroundChanges in corpus callosum area and thickness have been reported in bipolar disorder. Imaging and limited neuropathological data suggest possible abnormalities in myelination and/or glial function.AimsTo compare corpus callosum area, thickness and magnetic resonance imaging (MRI) T1 signal intensity in patients with bipolar disorder and healthy controls.MethodA total of 48 patients with euthymic bipolar disorder and 46 healthy controls underwent MRI analysis of callosal midsagittal area, callosal thickness and T1 signal intensity.ResultsThe bipolar group had smaller overall and subregional callosal areas and correspondingly reduced callosal width than the control group. Age correlated negatively with callosal area in the control group but not in the bipolar group. Signal intensity was higher in women than in men in both groups. Signal intensity was reduced in women, but not in men, in the bipolar group.ConclusionsObserved differences probably relate to diagnosis rather than mood state and bipolar disorder appears to result in morphometric change that overrides changes seen in normal ageing. Intensity changes are consistent with possible altered myelination or glial function. A gender-dependent factor appears to operate and to interact with diagnosis.

scholarly journals Use of Dermatoglyphic Parameters as Possible Markers in Bipolar Affective Disorder

2021 ◽  
Vol 11 (7) ◽  
pp. 385-393
Author(s):  
Amit Kumar Pal ◽  
Sagarika Ray ◽  
Jishnu Bhattacharya
Keyword(s):  
Bipolar Disorder ◽  
Affective Disorder ◽  
Bipolar Affective Disorder ◽  
Control Group ◽  
Healthy Controls ◽  
Ridge Count ◽  
Primordial Prevention ◽  
And Gender ◽  
The Individual ◽  
Bipolar Patients

Background: Bipolar affective disorder is an episodic illness characterized by fluctuating mood states. Association of dermatoglyphic traits with bipolar affective disorder has been observed in various studies. This study was undertaken to evaluate epidermal ridge patterns in bipolar patients as compared to healthy controls attending a super speciality district hospital in West Bengal. Context and purpose of study: Establishing dermatoglyphic parameters as biomarkers for early diagnosis and consequently, prompt intervention in bipolar affective disorder will ensure a greater scope of recovery, and thus promote a better quality of life for the individual as well as lower the burden of disease for the society. Methods: Quantitative dermatoglyphic parameters namely, Total Finger Ridge Count (TFRC), Total A-B Ridge Count (TABRC), and ATD Angle of 100 bipolar patients were compared to 100 age and gender matched healthy controls. Results: Statistically significant differences were found on comparing the dermatoglyphic parameters between cases and controls. TFRC was found to be decreased while ATD angle was increased in bipolar cases, as compared to the control group. However, no significant change was observed in TABRC between the two groups. Conclusions: This study found a significant association between dermatoglyphic pattern anomalies and the development of bipolarity. This may offer a scope of primordial prevention of bipolar disorder in future. Key words: Dermatoglyphics, ridge pattern, bipolar disorder, Total Finger Ridge Count (TFRC), Total A-B Ridge Count (TABRC), ATD angle.

scholarly journals TO STUDY THE PRESENCE OF NEUROLOGICAL SOFT SIGNS IN CONTROL POPULATION AND TO COMPARE FINDINGS WITH PATIENT POPULATIONS.

2019 ◽  
Vol 3 (10) ◽  
Author(s):  
Dr. Ashutosh Singh ◽  
Dr. Sudhir Kumar ◽  
Dr. Anil Kumar Sisodia
Keyword(s):  
Bipolar Disorder ◽  
Bipolar Affective Disorder ◽  
Control Group ◽  
Significant Group ◽  
Neurological Soft Signs ◽  
Tertiary Referral Center ◽  
Bipolar Group ◽  
Schizophrenia Group ◽  
Bipolar Patients ◽  
And Control

Background: The study was conducted at the Mental Health & Hospital, Agra. It is a tertiary referral center and a postgraduate teaching hospital. The hospital has a wide catchments area which includes diagnosis of schizophrenia and bipolar affective disorder. Result: The total number of neurological soft signs present in a subject. Schizophrenia group had the highest number of NSS (mean±SD= 10.43±4.13) then were the bipolar group (mean±SD= 5.63±3.46) and least number of NSS were in control group (mean±SD=1.03±1.73) i.e. bipolar group was intermediate between schizophrenia and control group in terms of total number of positive NSS. Results of one way ANOVA revealed significant group differences F (2, 87) =62.05, p<.01. Games-Howell post hoc comparisons revealed significant differences in Schizophrenia vs Bipolar group (p< .01), Schizophrenia Vs Control group (p< .01) as well as in Bipolar Vs Control group (p< .01) i.e. schizophrenia group had significantly higher number of positive NSS than bipolar and control group. Also bipolar group had significantly higher number of positive NSS than control group. Conclusion: On various subscales of Neurological Evaluation Scale, schizophrenia patients differed from bipolar patients on all the subscale but not on the sequencing of complex motor acts subscale. Neurological Soft Signs are present even during the symptom free period and therefore they are not due to the effects of active illness. Hence, these Neurological Soft Signs in our study may represent a trait like abnormality in both schizophrenia and bipolar disorder. Keywords: Neurology, Schizophrenia, Bipolar Disorder & Sign

scholarly journals TO STUDY THE PRESENCE OF NEUROLOGICAL SOFT SIGNS IN PATIENTS WITH SCHIZOPHRENIA AND BIPOLAR DISORDER AND COMPARE THE VARIOUS SUBSCALES.

2019 ◽  
Vol 3 (10) ◽  
Author(s):  
Dr. Ashutosh Singh ◽  
Dr. Sudhir Kumar ◽  
Dr. Anil Kumar Sisodia
Keyword(s):  
Bipolar Disorder ◽  
Sensory Integration ◽  
Motor Coordination ◽  
Bipolar Affective Disorder ◽  
Control Group ◽  
Significant Group ◽  
Tertiary Referral Center ◽  
Bipolar Group ◽  
Bipolar Patients ◽  
And Control

Background: The study was conducted at the Mental Health & Hospital, Agra. It is a tertiary referral center and a postgraduate teaching hospital. The hospital has a wide catchments area which includes diagnosis of schizophrenia and bipolar affective disorder. Result: It included AV integration, Stereognosis, Graphesthesia, Extinction and Right left confusion. On sensory integration subscale of NES schizophrenia group had the highest mean score (4.93±2.74) then were the bipolar group (1.50±1.98) and least score was of control group (0.20±0.66) i.e. on sensory integration subscale of NES bipolar group scores were intermediate between schizophrenia and control group. Results of one way ANOVA revealed significant group differences F (2, 87) =45.35, p< .01. Games-Howell post hoc comparisons revealed significant differences in Schizophrenia vs Bipolar group (p< .01), Schizophrenia Vs Control group (p< .01) as well as in Bipolar Vs Control group        (p< .01) i.e. on sensory integration subscale of NES schizophrenia patients scored significantly higher than bipolar and control group. Also bipolar group scored significantly higher than control group. Conclusion: On “Sensory Integration” subscale of NES, schizophrenia patients scored significantly higher than both the bipolar patients and controls. Bipolar patients scored significantly higher than controls. On “Motor Coordination” subscale of NES, schizophrenia patients scored significantly higher than both the bipolar patients and controls. But bipolar patients did not differed significantly from controls. Keywords: Neurology, Schizophrenia, Bipolar Disorder & Sign

scholarly journals Response Processes to Looming Appetitive and Aversive Cues in Euthymic Bipolar Patients and Their First-Degree Relatives: An Exploratory Study

2020 ◽  
pp. 025371762097528
Author(s):  
Velprashanth Venkatesan ◽  
Christoday R J Khess ◽  
Umesh Shreekantiah ◽  
Nishant Goyal ◽  
K. K. Kshitiz
Keyword(s):  
Bipolar Disorder ◽  
Healthy Controls ◽  
Sensitivity To Reward ◽  
Bipolar Group ◽  
First Degree Relatives ◽  
Vulnerability Model ◽  
Increased Sensitivity ◽  
Appetitive Cues ◽  
Spectrum Disorders ◽  
Bipolar Patients

Background: Patients with bipolar disorder demonstrate increased sensitivity to appetitive/rewarding stimuli even during euthymia. On presentation of arousing pictures, they show a peculiar response, suggesting heightened vigilance. While responding to looming arousing cues, studies show subjects with anxiety spectrum disorders exhibit increased reaction time (RT), explained by the “looming-vulnerability model.” This study aimed to investigate the responses to looming arousing cues in euthymic bipolar patients and their first-degree relatives, as compared to healthy controls. Method: A looming appetitive and aversive cue paradigm was designed for assessing the RT of patients to process appetitive and aversive cues. The behavioral inhibition/activation and sensitivity to reward/punishment amongst the groups were also assessed. Results: The bipolar group showed significantly longer RT to process appetitive cues irrespective of the looming condition. Aversive cues elicited significantly longer RT in both the bipolar group and in first-degree relatives, but only when presented with the looming condition. Significant looming bias was elicited in the bipolar group which suggested a particular cognitive style to looming cues. A composite measure of RT along with sensitivity to reward/punishment distinguishes the bipolar group and their first-degree relatives from the healthy controls. Conclusion: The looming vulnerability model may provide important insights for future exploration of cognitive endophenotypes in bipolar disorder.

scholarly journals Meta-analysis of Theory of Mind (ToM) impairment in bipolar disorder

2015 ◽  
Vol 46 (2) ◽  
pp. 253-264 ◽  
Author(s):  
E. Bora ◽  
C. Bartholomeusz ◽  
C. Pantelis
Keyword(s):  
Bipolar Disorder ◽  
Theory Of Mind ◽  
Mood State ◽  
Meta Analysis ◽  
Interpersonal Problems ◽  
Developmental Trajectory ◽  
Healthy Controls ◽  
Manic Symptoms ◽  
Different Types ◽  
The Relationship

BackgroundTheory of mind (ToM) dysfunction is prominent in a number of psychiatric disorders, in particular, autism and schizophrenia, and can play a significant role in poor functioning. There is now emerging evidence suggesting that ToM abilities are also impaired in bipolar disorder (BP); however, the relationship between ToM deficits and mood state is not clear.MethodWe conducted a meta-analysis of ToM studies in BP. Thirty-four studies comparing 1214 patients with BP and 1097 healthy controls were included. BP groups included remitted (18 samples, 545 BP patients), subsyndromal (12 samples, 510 BP patients), and acute (manic and/or depressed) (10 samples, 159 BP patients) patients.ResultsToM performance was significantly impaired in BP compared to controls. This impairment was evident across different types of ToM tasks (including affective/cognitive and verbal/visual) and was also evident in strictly euthymic patients with BP (d = 0.50). There were no significant differences between remitted and subsyndromal samples. However, ToM deficit was significantly more severe during acute episodes (d = 1.23). ToM impairment was significantly associated with neurocognitive and particularly with manic symptoms.ConclusionSignificant but modest sized ToM dysfunction is evident in remitted and subsyndromal BP. Acute episodes are associated with more robust ToM deficits. Exacerbation of ToM deficits may contribute to the more significant interpersonal problems observed in patients with acute or subsyndromal manic symptoms. There is a need for longitudinal studies comparing the developmental trajectory of ToM deficits across the course of the illness.

Abnormal white matter integrity as a structural endophenotype for bipolar disorder

2016 ◽  
Vol 46 (7) ◽  
pp. 1547-1558 ◽  
Author(s):  
A. Sarıçiçek ◽  
N. Zorlu ◽  
N. Yalın ◽  
C. Hıdıroğlu ◽  
B. Çavuşoğlu ◽  
...  
Keyword(s):  
Bipolar Disorder ◽  
White Matter ◽  
Clinical State ◽  
Control Group ◽  
Type I ◽  
Healthy Controls ◽  
Corona Radiata ◽  
Left Posterior ◽  
Axis I ◽  
Bipolar Patients

BackgroundSeveral 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.MethodA 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.ResultsFractional 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.ConclusionsDecreased 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.

scholarly journals Increased oxidative stress as a mechanism for decreased BDNF levels in acute manic episodes

2008 ◽  
Vol 30 (3) ◽  
pp. 243-245 ◽  
Author(s):  
Flávio Kapczinski ◽  
Benício N Frey ◽  
Ana C Andreazza ◽  
Márcia Kauer-Sant'Anna ◽  
Ângelo B M Cunha ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Bipolar Disorder ◽  
Neurotrophic Factor ◽  
Thiobarbituric Acid ◽  
Brain Derived Neurotrophic Factor ◽  
Oxidative Status ◽  
Control Group ◽  
Healthy Controls ◽  
Thiobarbituric Acid Reactive Substances ◽  
Low Levels

OBJECTIVE AND METHOD: There is a growing amount of data indicating that alterations in brain-derived neurotrophic factor and increased oxidative stress may play a role in the pathophysiology of bipolar disorder. In light of recent evidence demonstrating that brain-derived neurotrophic factor levels are decreased in situations of increased oxidative stress, we have examined the correlation between serum thiobarbituric acid reactive substances, a measure of lipid peroxidation, and serum brain-derived neurotrophic factor levels in bipolar disorder patients during acute mania and in healthy controls. RESULTS: Serum thiobarbituric acid reactive substances and brain-derived neurotrophic factor levels were negatively correlated in bipolar disorder patients (r = -0.56; p = 0.001), whereas no significant correlation was observed in the control group.. CONCLUSION: These results suggest that alterations in oxidative status may be mechanistically associated with abnormal low levels of brain-derived neurotrophic factor observed in individuals with bipolar disorder.

scholarly journals Markers of Regenerative Processes in Patients with Bipolar Disorder: A Case-control Study

2020 ◽  
Vol 10 (7) ◽  
pp. 408
Author(s):  
Artur Reginia ◽  
Jerzy Samochowiec ◽  
Marcin Jabłoński ◽  
Ewa Ferensztajn-Rochowiak ◽  
Janusz K. Rybakowski ◽  
...  
Keyword(s):  
Bipolar Disorder ◽  
Medical Science ◽  
Lithium Salts ◽  
Stable Phase ◽  
Control Group ◽  
Type I ◽  
Healthy Controls ◽  
Regenerative Processes ◽  
Factors Affecting ◽  
Socio Demographic Factors

Progress in medical science has allowed the discovery of many factors affecting the pathogenesis of bipolar disorder, and among the most recent research directions are found regenerative and inflammatory processes. The role of regenerative processes remains particularly poorly explored, but available data encourage further research, which may explain the pathogenesis of bipolar disorder (BD). The aim of this study was to evaluate the mobilization of stem cells into peripheral blood, in patients with bipolar disorder during stable phase, not treated with lithium salts. The study included 30 unrelated individuals with the diagnosis of bipolar disorder, with disease duration of at least 10 years, not treated with lithium salts for at least five years prior to the study. The control group consisted of 30 healthy subjects, matched for age, sex, body mass index (BMI), origin, socio-demographic factors and nicotine use. Blood samples underwent cytometric analyses to assess concentrations of: Very Small Embryonic Like (VSEL) CD34+, VSEL AC133+, HSC CD34+, HSC AC133+. There were no significant differences in stem cell levels between patients with BD and healthy controls. However, the level of VSEL cells AC133 + was significantly higher in type I BD patients compared to healthy controls. Our results indicate a disturbance in regenerative processes in patients with bipolar disorder.

Absence and size of massa intermedia in patients with schizophrenia and bipolar disorder

2008 ◽  
Vol 20 (4) ◽  
pp. 193-198 ◽  
Author(s):  
Meltem Ceyhan ◽  
Baki Adapınar ◽  
Gokay Aksaray ◽  
Figen Ozdemir ◽  
Ertugrul Colak
Keyword(s):  
Bipolar Disorder ◽  
Magnetic Resonance ◽  
Gender Difference ◽  
Sagittal Plane ◽  
Magnetic Resonance Images ◽  
Control Group ◽  
Healthy Controls ◽  
Significant Difference ◽  
Specific Alteration ◽  
Bipolar Patients

Objective:To evaluate the absence and size of massa intermedia (MI), a midline thalamic structure, and its gender-specific alteration in patients with schizophrenia and bipolar disorder.Methods:Thirty-five patients with schizophrenia (17 females and 18 males), 21 patients with bipolar disorder (15 females and 6 males) and 89 healthy controls (50 females and 39 males) were evaluated by magnetic resonance imaging. Thin-slice magnetic resonance images of the brain were evaluated. MI was determined in coronal and sagittal images, and area of the MI was measured on the sagittal plane.Results:Females had a significantly lower incidence of absent MI compared with males in the healthy control group. The absence of MI in schizophrenia and bipolar patients was not higher than the incidence in healthy controls. The size of MI showed a gender difference. The mean MI area size was smaller in female schizophrenia patients than in female controls, while no significant difference was observed between male schizophrenia patients and their controls.Conclusions:The size of MI, a gender difference midline structure, is smaller in females with schizophrenia, and the results of this study support other studies of structural aberration of the thalamus and other midline structures in the brains of patients with schizophrenia.

scholarly journals Working memory networks and activation patterns in schizophrenia and bipolar disorder: comparison with healthy controls

2014 ◽  
Vol 204 (4) ◽  
pp. 290-298 ◽  
Author(s):  
Christine Lycke Brandt ◽  
Tom Eichele ◽  
Ingrid Melle ◽  
Kjetil Sundet ◽  
Andrés Server ◽  
...  
Keyword(s):  
Bipolar Disorder ◽  
Working Memory ◽  
Large Scale ◽  
Psychotic Disorders ◽  
Brain Networks ◽  
Memory Task ◽  
Control Group ◽  
Healthy Controls ◽  
Activation Patterns ◽  
Patient Groups

BackgroundSchizophrenia and bipolar disorder are severe mental disorders with overlapping genetic and clinical characteristics, including cognitive impairments. An important question is whether these disorders also have overlapping neuronal deficits.AimsTo determine whether large-scale brain networks associated with working memory, as measured with functional magnetic resonance imaging (fMRI), are the same in both schizophrenia and bipolar disorder, and how they differ from those in healthy individuals.MethodPatients with schizophrenia (n = 100) and bipolar disorder (n = 100) and a healthy control group (n = 100) performed a 2-back working memory task while fMRI data were acquired. The imaging data were analysed using independent component analysis to extract large-scale networks of task-related activations.ResultsSimilar working memory networks were activated in all groups. However, in three out of nine networks related to the experimental task there was a graded response difference in fMRI signal amplitudes, where patients with schizophrenia showed greater activation than those with bipolar disorder, who in turn showed more activation than healthy controls. Secondary analysis of the patient groups showed that these activation patterns were associated with history of psychosis and current elevated mood in bipolar disorder.ConclusionsThe same brain networks were related to working memory in schizophrenia, bipolar disorder and controls. However, some key networks showed a graded hyperactivation in the two patient groups, in line with a continuum of neuronal abnormalities across psychotic disorders.

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