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https://www.readbyqxmd.com/read/28345388/cortisol-levels-in-fingernails-neurocognitive-performance-and-clinical-variables-in-euthymic-bipolar-i-disorder
#1
Andres Herane-Vives, Anthony J Cleare, Chin-Kuo Chang, Valeria de Angel, Andrew Papadopoulos, Susanne Fischer, Rozmin Halari, Eric Y W Cheung, Allan H Young
OBJECTIVES: Neurocognitive impairment has been found in bipolar patients. Hypercortisolemia is one possible cause but there has been no agreement on this. Previous sampling methods assessed only acute cortisol levels, whereas the association between cortisol and psychopathology might be better understood by investigating chronic levels. Fingernails are a novel method for measuring chronic cortisol concentration (CCC). Here, we measured CCC in euthymic bipolar disorder I (BD-I) patients and healthy controls using fingernails to investigate whether differences in CCC influenced neurocognitive performance...
March 27, 2017: World Journal of Biological Psychiatry
https://www.readbyqxmd.com/read/28343333/use-of-phase-locking-value-in-sensorimotor-rhythm-based-brain-computer-interface-zero-phase-coupling-and-effects-of-spatial-filters
#2
Wenjuan Jian, Minyou Chen, Dennis J McFarland
Phase-locking value (PLV) is a potentially useful feature in sensorimotor rhythm-based brain-computer interface (BCI). However, volume conduction may cause spurious zero-phase coupling between two EEG signals and it is not clear whether PLV effects are independent of spectral amplitude. Volume conduction might be reduced by spatial filtering, but it is uncertain what impact this might have on PLV. Therefore, the goal of this study was to explore whether zero-phase PLV is meaningful and how it is affected by spatial filtering...
March 25, 2017: Medical & Biological Engineering & Computing
https://www.readbyqxmd.com/read/28341336/valproic-acid-malabsorption-in-30-year-old-female-patient-case-study
#3
Anna Jopowicz, Agnieszka Piechal, Iwona Kurkowska-Jastrzębska
AIM: Valproic acid (VPA) is used in epilepsy treatment and as a stabilizer in bipolar affective disorder for over 40 years. Although, the pharmacokinetic properties of valproic acid are well known, it is often forgotten that the formulation of the drug significantly influences its gastrointestinal absorption. CASE: We are describing the case of 30 year-old female patient, diagnosed at the age of 13 with juvenile myoclonic epilepsy. Complete ineffectiveness of the treatment was caused by malabsorption of sodium valproate and valproic acid in the patient...
March 12, 2017: Neurologia i Neurochirurgia Polska
https://www.readbyqxmd.com/read/28338438/learning-brain-aneurysm-microsurgical-skills-in-a-human-placenta-model-predictive-validity
#4
Marcelo Magaldi Ribeiro de Oliveira, Carlos Eduardo Ferrarez, Taise Mosso Ramos, Jose Augusto Malheiros, Arthur Nicolato, Carla Jorge Machado, Mauro Tostes Ferreira, Fellype Borges de Oliveira, Cecília Félix Penido Mendes de Sousa, Pollyana Helena Vieira Costa, Sebastiao Gusmao, Giuseppe Lanzino, Rolando Del Maestro
OBJECTIVE Surgery for brain aneurysms is technically demanding. In recent years, the process to learn the technical skills necessary for these challenging procedures has been affected by a decrease in the number of surgical cases available and progressive restrictions on resident training hours. To overcome these limitations, surgical simulators such as cadaver heads and human placenta models have been developed. However, the effectiveness of these models in improving technical skills is unknown. This study assessed concurrent and predictive validity of brain aneurysm surgery simulation in a human placenta model compared with a "live" human brain cadaveric model...
March 24, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28337866/fibromyalgia-and-bipolar-disorder-extent-of-comorbidity-and-therapeutic-implications
#5
M C Di Tommaso Morrison, F Carinci, G Lessiani, E Spinas, S K Kritas, G Ronconi, Al Caraffa, P Conti
Fibromyalgia (FM) is a syndrome that affects muscles and soft tissues. Presenting symptoms include chronic muscle pain, fatigue, sleep problems and psychological symptoms, including depression and anxiety. There exists strong evidence of a comorbidity between FM and Bipolar Disorder (BD). In this study, papers from 2006 to February 2016 that examined the comorbidity and etiological similarities of FM and BD were reviewed, as well as the therapeutic implications of these findings. The reviewed articles showed that an adequate psychiatric screening for BD is recommended in FM patients with depressive symptoms, in order to decrease administration of antidepressants for BD, due to the lack of proven efficacy, and to limit antidepressant-induced mania...
January 2017: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/28334676/manual-motor-speed-dysfunction-as-a-neurocognitive-endophenotype-in-euthymic-bipolar-disorder-patients-and-their-healthy-relatives-evidence-from-a-5-year-follow-up-study
#6
P Correa-Ghisays, V Balanzá-Martínez, G Selva-Vera, J Vila-Francés, E Soria-Olivas, J Vivas-Lalinde, C San Martín, A M Borrás, R Ayesa-Arriola, J Sanchez-Moreno, J Sánchez-Ort, B Crespo-Facorro, E Vieta, R Tabarés-Seisdedos
BACKGROUND: Few studies have examined Manual Motor Speed (MMS) in bipolar disorder (BD). The aim of this longitudinal, family study was to explore whether dysfunctional MMS represents a neurocognitive endophenotype of BD. METHODS: A sample of 291 subjects, including 131 BD patients, 77 healthy first-degree relatives (BD-Rel), and 83 genetically-unrelated healthy controls (HC), was assessed with the Finger-Tapping Test (FTT) on three occasions over a 5-year period...
March 16, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/28334377/lrit3-differentially-affects-connectivity-and-synaptic-transmission-of-cones-to-on-and-off-bipolar-cells
#7
Marion Neuillé, Yan Cao, Romain Caplette, Debbie Guerrero-Given, Connon Thomas, Naomi Kamasawa, José-Alain Sahel, Christian P Hamel, Isabelle Audo, Serge Picaud, Kirill A Martemyanov, Christina Zeitz
Purpose: Mutations in LRIT3 lead to complete congenital stationary night blindness (cCSNB). Using a cCSNB mouse model lacking Lrit3 (nob6), we recently have shown that LRIT3 has a role in the correct localization of TRPM1 (transient receptor potential melastatin 1) to the dendritic tips of ON-bipolar cells (BCs), contacting both rod and cone photoreceptors. Furthermore, postsynaptic clustering of other mGluR6 cascade components is selectively eliminated at the dendritic tips of cone ON-BCs...
March 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28332121/impairment-in-emotion-perception-from-body-movements-in-individuals-with-bipolar-i-and-bipolar-ii-disorder-is-associated-with-functional-capacity
#8
Anja Vaskinn, Trine Vik Lagerberg, Thomas D Bjella, Carmen Simonsen, Ole A Andreassen, Torill Ueland, Kjetil Sundet
BACKGROUND: Individuals with bipolar disorder present with moderate impairments in social cognition during the euthymic state. The impairment extends to theory of mind and to the perception of emotion in faces and voices, but it is unclear if emotion perception from body movements is affected. The main aim of this study was to examine if participants with bipolar disorder perform worse than healthy control participants on a task using point-light displays of human full figures moving in a manner indicative of a basic emotion (angry, happy, sad, fearful, neutral/no emotion)...
December 2017: International Journal of Bipolar Disorders
https://www.readbyqxmd.com/read/28330589/ethnicity-and-excess-mortality-in-severe-mental-illness-a-cohort-study
#9
Jayati Das-Munshi, Chin-Kuo Chang, Rina Dutta, Craig Morgan, James Nazroo, Robert Stewart, Martin J Prince
BACKGROUND: Excess mortality in severe mental illness (defined here as schizophrenia, schizoaffective disorders, and bipolar affective disorders) is well described, but little is known about this inequality in ethnic minorities. We aimed to estimate excess mortality for people with severe mental illness for five ethnic groups (white British, black Caribbean, black African, south Asian, and Irish) and to assess the association of ethnicity with mortality risk. METHODS: We conducted a longitudinal cohort study of individuals with a valid diagnosis of severe mental illness between Jan 1, 2007, and Dec 31, 2014, from the case registry of the South London and Maudsley Trust (London, UK)...
March 16, 2017: Lancet Psychiatry
https://www.readbyqxmd.com/read/28329545/darier-white-disease
#10
Mitalee P Christman, Evan Reider, Randie H Kim, Nooshin Brinster, Elisa Femia, Miriam Keltz Pomeranz
We present a 58-year-old woman with bipolardisorder and with a longstanding history of yellowbrown,hyperkeratotic papules in a seborrheicdistribution and nail changes. Her father andpaternal grandmother had similar eruptions and alsohad psychiatric disease. Histopathologic examinationshowed acantholysis and dyskeratosis, which wasconsistent with Darier-White disease. Darier-Whitedisease is a rare, hereditary disorder that is inheritedin an autosomal dominant manner and that usuallypresents in adolescence or early adulthood dueto mutations in the SERCA2 calcium pump...
December 15, 2016: Dermatology Online Journal
https://www.readbyqxmd.com/read/28328790/comparison-of-the-effects-of-quetiapine-xr-and-lithium-monotherapy-on-actigraphy-measured-circadian-parameters-in-patients-with-bipolar-ii-depression
#11
Jeong Yeon Hwang, Jae-Won Choi, Seung-Gul Kang, Su Hwan Hwang, Seog Ju Kim, Yu Jin Lee
PURPOSE/BACKGROUND: The aim of this study was to evaluate the effects of quetiapine XR and lithium on actigraphy-measured circadian parameters in patients with bipolar II depression. METHODS/PROCEDURES: This was an 8-week, open-label, prospective, randomized comparative study. The assessments included the 17-item Hamilton Depression Rating Scale score and actigraphic measures concerning the previous 7 days, collected at each visit (weeks 0 [baseline], 1, 2, 4, 6, and 8); the actigraphic data were analyzed with a cosinor analysis...
March 21, 2017: Journal of Clinical Psychopharmacology
https://www.readbyqxmd.com/read/28321286/crispr-cas9-mediated-heterozygous-knockout-of-the-autism-gene-chd8-and-characterization-of-its-transcriptional-networks-in-cerebral-organoids-derived-from-ips-cells
#12
Ping Wang, Ryan Mokhtari, Erika Pedrosa, Michael Kirschenbaum, Can Bayrak, Deyou Zheng, Herbert M Lachman
BACKGROUND: CHD8 (chromodomain helicase DNA-binding protein 8), which codes for a member of the CHD family of ATP-dependent chromatin-remodeling factors, is one of the most commonly mutated genes in autism spectrum disorders (ASD) identified in exome-sequencing studies. Loss of function mutations in the gene have also been found in schizophrenia (SZ) and intellectual disabilities and influence cancer cell proliferation. We previously reported an RNA-seq analysis carried out on neural progenitor cells (NPCs) and monolayer neurons derived from induced pluripotent stem (iPS) cells that were heterozygous for CHD8 knockout (KO) alleles generated using CRISPR-Cas9 gene editing...
2017: Molecular Autism
https://www.readbyqxmd.com/read/28316115/gabaa-and-gabab-receptor-dysregulation-in-superior-frontal-cortex-of-subjects-with-schizophrenia-and-bipolar-disorder
#13
S Hossein Fatemi, Timothy D Folsom, Paul D Thuras
Schizophrenia and bipolar disorder are complex psychiatric disorders that affect millions of people worldwide. Evidence from gene association and postmortem studies has identified abnormalities of the gamma-aminobutyric acid (GABA) signaling system in both disorders. Abnormal GABAergic signaling and transmission could contribute to the symptomatology of these disorders, potentially through impaired gamma oscillations which normally occur during cognitive processing. In the current study, we examined the protein expression of 14 GABAA and two GABAB receptor subunits in the superior frontal cortex of subjects with schizophrenia, bipolar disorder, and healthy controls...
March 18, 2017: Synapse
https://www.readbyqxmd.com/read/28300949/increased-affective-empathy-in-bipolar-patients-during-a-manic-episode
#14
Anna Bodnar, Janusz K Rybakowski
Objective: To assess both cognitive and affective empathy in patients with bipolar disorder (BD) during an acute manic or depressive episode. Methods: The study included 25 patients with BD (aged 35±14 years) during an acute manic episode, 25 bipolar patients (aged 41±14 years) during a depressive episode, and 25 healthy control subjects (aged 36±11 years). Cognitive and affective empathy were assessed using the Multifaceted Empathy Test. Results: In both manic and depressive patients, a significant deficit in cognitive empathy was demonstrated...
March 13, 2017: Revista Brasileira de Psiquiatria
https://www.readbyqxmd.com/read/28300934/an-evolutionary-approach-to-mania-studying-sardinian-immigrants-to-argentina
#15
Mauro G Carta, Alessandra Perra, Michela Atzeni, Silvia D'Oca, Maria F Moro, Peter K Kurotschka, Daniela Moro, Federica Sancassiani, Luigi Minerba, Maria V Brasesco, Gustavo Mausel, Antonio E Nardi, Leonardo Tondo
Objective: To ascertain lifetime prevalence of positivity to a screening questionnaire for bipolar disorders (BD) in Sardinian immigrants to Argentina and residents of Sardinia and assess whether such positivity affects quality of life (QoL) in either group. Our hypothesis is that screen positivity for BD may be more frequent in immigrants. Methods: Observational study. Subjects were randomly selected from the membership lists of associations of Sardinian immigrants in Argentina...
March 9, 2017: Revista Brasileira de Psiquiatria
https://www.readbyqxmd.com/read/28291043/repetitive-transcranial-magnetic-stimulation-and-treatment-emergent-mania-and-hypomania-a-review-of-the-literature
#16
Fady Rachid
BACKGROUND: This review focuses on treatment-emergent mania/hypomania (TEM) associated with repetitive transcranial magnetic stimulation (rTMS). METHODS: English-language studies involving possible rTMS-induced mania/hypomania published between 1966 and 2015 were retrieved through a Medline search using the search terms mania, hypomania, mixed affective state, treatment-emergent, repetitive transcranial magnetic stimulation, and rTMS. Fifteen case series and controlled studies describing TEM associated with rTMS treatment have been published involving 24 individuals, most of whom were diagnosed with either bipolar I or II disorder or major depressive disorder...
March 2017: Journal of Psychiatric Practice
https://www.readbyqxmd.com/read/28289283/the-dopamine-hypothesis-of-bipolar-affective-disorder-the-state-of-the-art-and-implications-for-treatment
#17
REVIEW
A H Ashok, T R Marques, S Jauhar, M M Nour, G M Goodwin, A H Young, O D Howes
Bipolar affective disorder is a common neuropsychiatric disorder. Although its neurobiological underpinnings are incompletely understood, the dopamine hypothesis has been a key theory of the pathophysiology of both manic and depressive phases of the illness for over four decades. The increased use of antidopaminergics in the treatment of this disorder and new in vivo neuroimaging and post-mortem studies makes it timely to review this theory. To do this, we conducted a systematic search for post-mortem, pharmacological, functional magnetic resonance and molecular imaging studies of dopamine function in bipolar disorder...
March 14, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/28289279/next-gen-sequencing-identifies-non-coding-variation-disrupting-mirna-binding-sites-in-neurological-disorders
#18
P Devanna, X S Chen, J Ho, D Gajewski, S D Smith, A Gialluisi, C Francks, S E Fisher, D F Newbury, S C Vernes
Understanding the genetic factors underlying neurodevelopmental and neuropsychiatric disorders is a major challenge given their prevalence and potential severity for quality of life. While large-scale genomic screens have made major advances in this area, for many disorders the genetic underpinnings are complex and poorly understood. To date the field has focused predominantly on protein coding variation, but given the importance of tightly controlled gene expression for normal brain development and disorder, variation that affects non-coding regulatory regions of the genome is likely to play an important role in these phenotypes...
March 14, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/28288308/the-link-between-hypomania-risk-and-creativity-the-role-of-heightened-behavioral-activation-system-bas-sensitivity
#19
Bin-Na Kim, Seok-Man Kwon
BACKGROUND: The relationship between bipolar disorder (BD) and creativity is well-known; however, relatively little is known about its potential mechanism. We investigated whether heightened behavioral activation system (BAS) sensitivity may mediate such relationship. METHODS: Korean young adults (N=543) completed self-report questionnaires that included the Hypomanic Personality Scale (HPS), the Behavioral Activation System(BAS) Scale, the Everyday Creativity Scale (ECS), the Positive Affect and Negative Affect Schedule (PANAS), and the Altman Self-Rating Mania Scale (ASRM)...
March 2, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/28287195/-pilot-study-on-nutritional-and-eating-disorders-in-children-and-mood-disorders-comorbidity-or-prodromal-traits
#20
Paola Cimbolli, Álvaro Quiñones, Carla Ugarte, Adele De Pascale
INTRODUCTION: Both children affected by nutritional and eating disorders (ED) and adults with bipolar disorder (BD) display symptoms of deficient emotional self-regulation, which can present in different forms. If we observe the clinical and developmental histories of individuals affected by EDs and BD, based on a cognitive systemic post-rationalist approach, we can hypothesise a continuum between the two disorders. The aim of this pilot study is to support the hypothesis - from an explanatory rather than a non-descriptive approach - that EDs and BD are the possible result of issues tied to biological and psychological self-regulation...
January 2017: Rivista di Psichiatria
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