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Affective bipolar disorder

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https://www.readbyqxmd.com/read/29764272/does-s100b-have-a-potential-role-in-affective-disorders-a-literature-review
#1
Hilda Kroksmark, Maj Vinberg
BACKGROUND: S100B is a calcium-binding protein located in glial cells; it is regarded as a potential biomarker in affective disorders. AIM: To review the literature investigating the role of S100B in patients with affective disorders. METHOD: A systematic review of original English language studies investigating S100B in serum, cerebrospinal fluid, plasma and lymphocytes, in patients with affective disorders, was conducted. The literature search was conducted within the PubMed database...
May 15, 2018: Nordic Journal of Psychiatry
https://www.readbyqxmd.com/read/29760952/downregulation-of-the-psychiatric-susceptibility-gene-cacna1c-promotes-mitochondrial-resilience-to-oxidative-stress-in-neuronal-cells
#2
Susanne Michels, Goutham K Ganjam, Helena Martins, Gerhard M Schratt, Markus Wöhr, Rainer K W Schwarting, Carsten Culmsee
Affective disorders such as major depression and bipolar disorder are among the most prevalent forms of mental illness and their etiologies involve complex interactions between genetic and environmental risk factors. Over the past ten years, several genome wide association studies (GWAS) have identified CACNA1C as one of the strongest genetic risk factors for the development of affective disorders. However, its role in disease pathogenesis is still largely unknown. Vulnerability to affective disorders also involves diverse environmental risk factors such as perinatal insults, childhood maltreatment, and other adverse pathophysiological or psychosocial life events...
2018: Cell Death Discovery
https://www.readbyqxmd.com/read/29760528/lrrtm4-c538y-novel-gene-mutation-is-associated-with-hereditary-macular-degeneration-with-novel-dysfunction-of-on-type-bipolar-cells
#3
Yuichi Kawamura, Akiko Suga, Takuro Fujimaki, Kazutoshi Yoshitake, Kazushige Tsunoda, Akira Murakami, Takeshi Iwata
The macula is a unique structure in higher primates, where cone and rod photoreceptors show highest density in the fovea and the surrounding area, respectively. The hereditary macular dystrophies represent a heterozygous group of rare disorders characterized by central visual loss and atrophy of the macula and surrounding retina. Here we report an atypical absence of ON-type bipolar cell response in a Japanese patient with autosomal dominant macular dystrophy (adMD). To identify a causal genetic mutation for the adMD, we performed whole-exome sequencing (WES) on four affected and four-non affected members of the family for three generations, and identified a novel p...
May 14, 2018: Journal of Human Genetics
https://www.readbyqxmd.com/read/29756288/mixed-states-in-bipolar-and-major-depressive-disorders-systematic-review-and-quality-appraisal-of-guidelines
#4
REVIEW
N Verdolini, D Hidalgo-Mazzei, A Murru, I Pacchiarotti, L Samalin, A H Young, E Vieta, A F Carvalho
OBJECTIVE: This systematic review provided a critical synthesis and a comprehensive overview of guidelines on the treatment of mixed states. METHOD: The MEDLINE/PubMed and EMBASE databases were systematically searched from inception to March 21st, 2018. International guidelines covering the treatment of mixed episodes, manic/hypomanic, or depressive episodes with mixed features were considered for inclusion. A methodological quality assessment was conducted with the Appraisal of Guidelines for Research and Evaluation-AGREE II...
May 13, 2018: Acta Psychiatrica Scandinavica
https://www.readbyqxmd.com/read/29752814/valproic-acid-inhibits-atp-triggered-ca-2-release-via-a-p38-dependent-mechanism-in-bend-3-endothelial-cells
#5
Iat-Lon Leong, Tien-Yao Tsai, Kar-Lok Wong, Lian-Ru Shiao, Ka-Shun Cheng, Paul Chan, Yuk-Man Leung
Valproic acid (VA) is currently used to treat epilepsy and bipolar disorder. It has also been demonstrated to promote neuroprotection and neurogenesis. Although beneficial actions of VA on brain blood vessels have also been demonstrated, the effects of VA on brain endothelial cell (EC) Ca2+ signaling is hitherto unreported. In this report we examined the effects of VA on agonist-triggered Ca2+ signaling in mouse cortical bEND.3 EC. While VA (100 μM) did not cause an acute inhibition of ATP-triggered Ca2+ signaling, a 30-min VA treatment strongly suppressed ATP-triggered intracellular Ca2+ release; however, such treatment did not affect Ca2+ release triggered by cyclopiazonic acid, an inhibitor of SERCA Ca2+ pump, suggesting there was no reduction in Ca2+ store size...
May 12, 2018: Fundamental & Clinical Pharmacology
https://www.readbyqxmd.com/read/29748770/a-systematic-review-of-associations-between-functional-mri-activity-and-polygenic-risk-for-schizophrenia-and-bipolar-disorder
#6
REVIEW
Zalina Dezhina, Siri Ranlund, Marinos Kyriakopoulos, Steve C R Williams, Danai Dima
Genetic factors account for up to 80% of the liability for schizophrenia (SCZ) and bipolar disorder (BD). Genome-wide association studies have successfully identified several genes associated with increased risk for both disorders. This has allowed researchers to model the aggregate effect of genes associated with disease status and create a polygenic risk score (PGRS) for each individual. The interest in imaging genetics using PGRS has grown in recent years, with several studies now published. We have conducted a systematic review to examine the effects of PGRS of SCZ, BD and cross psychiatric disorders on brain function and connectivity using fMRI data...
May 10, 2018: Brain Imaging and Behavior
https://www.readbyqxmd.com/read/29745862/novel-functional-variants-at-the-gwas-implicated-loci-might-confer-risk-to-major-depressive-disorder-bipolar-affective-disorder-and-schizophrenia
#7
Leonid O Bryzgalov, Elena E Korbolina, Ilja I Brusentsov, Elena Y Leberfarb, Natalia P Bondar, Tatiana I Merkulova
BACKGROUND: A challenge of understanding the mechanisms underlying cognition including neurodevelopmental and neuropsychiatric disorders is mainly given by the potential severity of cognitive disorders for the quality of life and their prevalence. However, the field has been focused predominantly on protein coding variation until recently. Given the importance of tightly controlled gene expression for normal brain function, the goal of the study was to assess the functional variation including non-coding variation in human genome that is likely to play an important role in cognitive functions...
April 19, 2018: BMC Neuroscience
https://www.readbyqxmd.com/read/29743478/transcriptome-analysis-in-whole-blood-reveals-increased-microbial-diversity-in-schizophrenia
#8
Loes M Olde Loohuis, Serghei Mangul, Anil P S Ori, Guillaume Jospin, David Koslicki, Harry Taegyun Yang, Timothy Wu, Marco P Boks, Catherine Lomen-Hoerth, Martina Wiedau-Pazos, Rita M Cantor, Willem M de Vos, René S Kahn, Eleazar Eskin, Roel A Ophoff
The role of the human microbiome in health and disease is increasingly appreciated. We studied the composition of microbial communities present in blood across 192 individuals, including healthy controls and patients with three disorders affecting the brain: schizophrenia, amyotrophic lateral sclerosis, and bipolar disorder. By using high-quality unmapped RNA sequencing reads as candidate microbial reads, we performed profiling of microbial transcripts detected in whole blood. We were able to detect a wide range of bacterial and archaeal phyla in blood...
May 10, 2018: Translational Psychiatry
https://www.readbyqxmd.com/read/29739816/-cacna1c-haploinsufficiency-leads-to-pro-social-50-khz-ultrasonic-communication-deficits-in-rats
#9
Theresa M Kisko, Moria D Braun, Susanne Michels, Stephanie H Witt, Marcella Rietschel, Carsten Culmsee, Rainer K W Schwarting, Markus Wöhr
The cross-disorder risk gene CACNA1C is strongly implicated in multiple neuropsychiatric disorders, including autism spectrum disorder (ASD), bipolar disorder (BPD), and schizophrenia (SCZ), with deficits in social functioning being common for all major neuropsychiatric disorders. In the present study, we explored the role of Cacna1c in regulating disorder-relevant behavioral phenotypes, focusing on socio-affective communication after weaning during the critical developmental period of adolescence in rats. To this aim, we used a newly developed genetic Cacna1c rat model and applied a truly reciprocal approach for studying communication through ultrasonic vocalizations, including both sender and receiver...
May 8, 2018: Disease Models & Mechanisms
https://www.readbyqxmd.com/read/29737638/preventing-morphine-reinforcement-with-high-frequency-deep-brain-stimulation-of-the-lateral-hypothalamic-area
#10
Mojdeh Fattahi, Ghorbangol Ashabi, Seyed Morteza Karimian, Esmail Riahi
Deep brain stimulation (DBS) has been proposed as a promising intervention for patients with treatment-refractory substance use disorder. Here, we investigated if high-frequency DBS in the lateral hypothalamic area (LHA) could affect drug-induced reinforcement. Rats were bilaterally implanted with bipolar stimulation electrodes in the LHA and trained to the morphine conditioned place preference. DBS (monophasic square pulses, 130 Hz, 100-microsecond pulse duration and 150 μA) was applied during the morphine-pairing trials (30 minutes daily for 4 days) or drug-free postconditioning test (15 minutes) to determine its effect on the acquisition or expression of morphine reward, respectively...
May 8, 2018: Addiction Biology
https://www.readbyqxmd.com/read/29736131/the-association-of-insight-and-change-in-insight-with-clinical-symptoms-in-depressed-inpatients
#11
Hongbo He, Qing Chang, Yarong Ma
Background: Lack of insight has been extensively studied and was found to be adversely correlated with impaired treatment compliance and worse long term clinical outcomes among patients with schizophrenia, while not much is known about this phenonmenon in patients with severe depression. Aim: To explore the correlates of insight and its relation to symptom changes among the most seriously ill patients with affective disorders, those who require hospitalization. Methods: Patients hospitalized in a large psychiatric hospital in south China with either major depressive disorder (MDD)(N=55) or bipolar depression (BD) (N=85) based on ICD-10 diagnostic criteria were assessed with the Insight and Treatment Attitudes Questionnaire (ITAQ) one week after admission and at the time of discharge...
April 25, 2018: Shanghai Archives of Psychiatry
https://www.readbyqxmd.com/read/29736062/dropout-rates-and-factors-associated-with-dropout-from-treatment-among-elderly-patients-attending-the-outpatient-services-of-a-tertiary-care-hospital
#12
Sandeep Grover, Devakshi Dua, Subho Chakrabarti, Ajit Avasthi
Aim: This study aimed to evaluate the "dropout" rates from treatment and associated factors among elderly patients attending a tertiary care psychiatry outpatient facility. Materials and Methods: Data of 1422 patients aged ≥60 years, attending the walk-in clinic were evaluated. Results: Out of 1422 patients, 406 (28.55%) belonged to the "dropout" group. In the "dropout" group, the age of patients was significantly higher than the followed-up group, and a higher proportion of patients were >70 years old...
January 2018: Indian Journal of Psychiatry
https://www.readbyqxmd.com/read/29734951/disrupted-rich-club-organization-and-structural-brain-connectome-in-unmedicated-bipolar-disorder
#13
Ying Wang, Feng Deng, Yanbin Jia, Junjing Wang, Shuming Zhong, Huiyuan Huang, Lixiang Chen, Guanmao Chen, Huiqing Hu, Li Huang, Ruiwang Huang
BACKGROUND: Bipolar disorder (BD) has been associated with altered brain structural and functional connectivity. However, little is known regarding alterations of the structural brain connectome in BD. The present study aimed to use diffusion-tensor imaging (DTI) and graph theory approaches to investigate the rich club organization and white matter structural connectome in BD. METHODS: Forty-two patients with unmedicated BD depression and 59 age-, sex- and handedness-matched healthy control participants underwent DTI...
May 8, 2018: Psychological Medicine
https://www.readbyqxmd.com/read/29734096/does-recent-mania-affect-response-to-antidepressants-in-bipolar-disorder-a-re-analysis-of-step-bd-data
#14
Zahra Mousavi, Sheri Johnson, Descartes Li
BACKGROUND: One previous study suggested that the presence of a manic episode before bipolar depression is related to worse response to antidepressants. METHOD: To examine this effect in a larger sample, we used data from the large, multi-site STEP-BD study. We hypothesized that among persons treated with antidepressants for bipolar depression, manic or mixed episodes before depression onset (as compared to euthymia) would predict lower rate of recovery, more sustained depressive symptoms and higher rate of switching into mania/hypomania after antidepressant treatment of bipolar depression...
April 22, 2018: Journal of Affective Disorders
https://www.readbyqxmd.com/read/29722037/electroencephalography-in-the-monitoring-of-lithium-toxicity-a-case-report
#15
T Omi
WHAT IS KNOWN AND OBJECTIVE: If lithium toxicity occurs during treatment by lithium, treatment is performed while monitoring serum lithium levels. CASE SUMMARY: We report a case of lithium toxicity in a patient with bipolar affective disorder who developed neurotoxic symptoms associated with elevated serum lithium level and abnormal electroencephalography (EEG) changes. The elevated serum lithium level decreased before EEG normalization, which was associated with disappearance of all neurotoxic symptoms...
May 2, 2018: Journal of Clinical Pharmacy and Therapeutics
https://www.readbyqxmd.com/read/29710812/electrocardiographic-and-electrooculographic-responses-to-external-emotions-and-their-transitions-in-bipolar-i-and-ii-disorders
#16
Guorong Ma, Chu Wang, Yanli Jia, Jiawei Wang, Bingren Zhang, Chanchan Shen, Hongying Fan, Bing Pan, Wei Wang
Bipolar disorder has two main types, bipolar I (BD I) and II (BD II), which present different affective states and personality characteristics, they might present different modes of emotional regulation. We hypothesized that the electrocardiogram and electrooculogram to external emotions are different in BD I and BD II. We asked 69 BD I and 54 BD II patients, and 139 healthy volunteers to undergo these tests in response to disgust, erotica, fear, happiness, neutral, and sadness, and their transitions. Their affective states were also measured...
April 28, 2018: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29710135/association-between-muscular-strength-and-cognition-in-people-with-major-depression-or-bipolar-disorder-and-healthy-controls
#17
Joseph Firth, Josh A Firth, Brendon Stubbs, Davy Vancampfort, Felipe B Schuch, Mats Hallgren, Nicola Veronese, Alison R Yung, Jerome Sarris
Importance: Objective physical fitness measures, such as handgrip strength, are associated with physical, mental, and cognitive outcomes in the general population. Although people with mental illness experience reduced physical fitness and cognitive impairment, the association between muscular strength and cognition has not been examined to date. Objective: To determine associations between maximal handgrip strength and cognitive performance in people with major depression or bipolar disorder and in healthy controls...
April 18, 2018: JAMA Psychiatry
https://www.readbyqxmd.com/read/29709719/cerebral-processing-of-facial-emotions-in-bipolar-i-and-ii-disorders-an-event-related-potential-study
#18
Bingren Zhang, Chu Wang, Guorong Ma, Hongying Fan, Jiawei Wang, Wei Wang
BACKGROUND: Behavioral results have shown that bipolar disorder patients have impaired recognition of facial emotions, but the detailed information processing of facial emotions in patients with bipolar I (BD I) and II (BD II) disorders remain unknown. METHODS: We tested the cerebral event-related potentials to the static facial expressions of Neutral, Happiness, Anger and Sadness in 39 adult patients with BD I, 22 BD II, and 54 healthy volunteers. Participants' affective states were measured with the Mood Disorder Questionnaire, the Hypomania Checklist-32, and the Plutchik-van Praag Depression Inventory...
April 22, 2018: Journal of Affective Disorders
https://www.readbyqxmd.com/read/29707086/epigenetics-of-metabolic-syndrome-as-a-mood-disorder
#19
REVIEW
Sermin Kesebir
Mood disorders comprise major depressive disorder (MDD), bipolar disorder (BD) and the milder forms of these two disorders. Reccurring MDD is also known as unipolar disorder. The distinction between unipolar and bipolar disorders was first suggested in 1957 by Leonard and was made official after support by several studies in 1980. Indeed, in 150 AD, Aretaeus of Cappadocia wrote "It seems to me that melancholia is the beginning and a part of mania". Additionally, Kraepelin, who proposed the first medical disease model in psychiatry a century ago, considered recurrent unipolar depression cases under the category of bipolar disorder and conceptualized spectrum disorders...
June 2018: Journal of Clinical Medicine Research
https://www.readbyqxmd.com/read/29706155/the-workforce-shortage-of-child-and-adolescent-psychiatrists-is-it-time-for-a-different-approach
#20
EDITORIAL
Robert L Findling, Ekaterina Stepanova
Psychiatric disorders affect a large number of children around the world. Recent data have reported that approximately 10% to 13% of children have a serious emotional disturbance with significant functional impairment, suggesting that at least 1 in 10 children require mental health services.1,2 Approximately half the adults with mental illness received their diagnosis before 15 years of age3 and close to three fourths of mental health disorders start by the mid-20s.4 Mental illnesses are associated with a large disease burden because these conditions lead to increases in morbidity, mortality, and financial costs...
May 2018: Journal of the American Academy of Child and Adolescent Psychiatry
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