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https://www.readbyqxmd.com/read/28422579/is-the-higher-number-of-suicide-attempts-in-bipolar-disorder-vs-major-depressive-disorder-attributable-to-illness-severity
#1
Matthew S Michaels, Tia Balthrop, Alejandro Pulido, M David Rudd, Thomas E Joiner
Objectives The present study represents an early-stage investigation into the phenomenon whereby those with bipolar disorder attempt suicide more frequently than those with unipolar depression, but do not tend to attempt suicide during mania. Methods Data for this study were obtained from baseline measurements collected in a randomized treatment study at a major southwestern United States military medical center. Results We demonstrated the rarity of suicide attempts during mania, the higher frequency of suicide attempts in those with bipolar disorder compared to those with depression, and the persistence of effects after accounting for severity of illness...
April 19, 2017: Archives of Suicide Research: Official Journal of the International Academy for Suicide Research
https://www.readbyqxmd.com/read/28416810/the-joint-impact-of-cognitive-performance-in-adolescence-and-familial-cognitive-aptitude-on-risk-for-major-psychiatric-disorders-a-delineation-of-four-potential-pathways-to-illness
#2
K S Kendler, H Ohlsson, R S E Keefe, K Sundquist, J Sundquist
How do joint measures of premorbid cognitive ability and familial cognitive aptitude (FCA) reflect risk for a diversity of psychiatric and substance use disorders? To address this question, we examined, using Cox models, the predictive effects of school achievement (SA) measured at age 16 and FCA-assessed from SA in siblings and cousins, and educational attainment in parents-on risk for 12 major psychiatric syndromes in 1 140 608 Swedes born 1972-1990. Four developmental patterns emerged. In the first, risk was predicted jointly by low levels of SA and high levels of FCA-that is a level of SA lower than would be predicted from the FCA...
April 18, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/28411507/bipolar-mixed-features-results-from-the-comparative-effectiveness-for-bipolar-disorder-bipolar-choice-study
#3
Mauricio Tohen, Alexandra K Gold, Louisa G Sylvia, Rebecca E Montana, Susan L McElroy, Michael E Thase, Dustin J Rabideau, Andrew A Nierenberg, Noreen A Reilly-Harrington, Edward S Friedman, Richard C Shelton, Charles L Bowden, Vivek Singh, Thilo Deckersbach, Terence A Ketter, Joseph R Calabrese, William V Bobo, Melvin G McInnis
BACKGROUND: DSM-5 changed the criteria from DSM-IV for mixed features in mood disorder episodes to include non-overlapping symptoms of depression and hypomania/mania. It is unknown if, by changing these criteria, the same group would qualify for mixed features. We assessed how those meeting DSM-5 criteria for mixed features compare to those meeting DSM-IV criteria. METHODS: We analyzed data from 482 adult bipolar patients in Bipolar CHOICE, a randomized comparative effectiveness trial...
April 5, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/28390496/kindling-of-life-stress-in-bipolar-disorder-effects-of-early-adversity
#4
Benjamin G Shapero, Rachel B Weiss, Taylor A Burke, Elaine M Boland, Lyn Y Abramson, Lauren B Alloy
Most theoretical frameworks regarding the role of life stress in bipolar disorders (BD) do not incorporate the possibility of a changing relationship between psychosocial context and episode initiation across the course of the disorder. The kindling hypothesis theorizes that over the longitudinal course of recurrent affective disorders, the relationship between major life stressors and episode initiation declines (Post, 1992). The present study aimed to test an extension of the kindling hypothesis in BD by examining the effect of early life adversity on the relationship between proximal life events and prospectively assessed mood episodes...
May 2017: Behavior Therapy
https://www.readbyqxmd.com/read/28381796/correlation-between-the-efficacy-of-lamotrigine-and-the-serum-lamotrigine-level-during-the-remission-phase-of-acute-bipolar-ii-depression-a-naturalistic-and-unblinded-prospective-pilot-study
#5
Akiyoshi Kikkawa, Yoshihisa Kitamura, Tetsuya Aiba, Koichi Hiraki, Toshiaki Sendo
Lamotrigine has acute antidepressant effects in patients with bipolar disorder. However, there is little information regarding appropriate serum levels of lamotrigine and the time until remission after the start of lamotrigine therapy in patients with bipolar II depression. This was a naturalistic and unblinded prospective pilot study. Twelve patients' depressive symptoms were evaluated using the Montgomery-Åsberg Depression Rating Scale (MADRS) at the start of treatment and at the time of remission, and blood samples were obtained at the time of remission...
2017: Biological & Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/28378516/how-do-horizontal-cells-talk-to-cone-photoreceptors-different-levels-of-complexity-at-the-cone-horizontal-cell-synapse
#6
Camille A Chapot, Thomas Euler, Timm Schubert
The first synapse of the retina plays a fundamental role in the visual system. Due to its importance, it is critical that it encodes information from the outside world with the greatest accuracy and precision possible. Cone photoreceptor axon terminals contain many individual synaptic sites, each represented by a presynaptic structure called a "ribbon". These synapses are both highly sophisticated and conserved. Each ribbon relays the light signal to one ON cone bipolar cell and several OFF cone bipolar cells, while two dendritic processes from a GABAergic interneuron, the horizontal cell, modulate the cone output via parallel feedback mechanisms...
April 5, 2017: Journal of Physiology
https://www.readbyqxmd.com/read/28359862/ketamine-augmentation-of-electroconvulsive-therapy-to-improve-neuropsychological-and-clinical-outcomes-in-depression-ketamine-ect-a-multicentre-double-blind-randomised-parallel-group-superiority-trial
#7
Ian M Anderson, Andrew Blamire, Tim Branton, Ross Clark, Darragh Downey, Graham Dunn, Andrew Easton, Rebecca Elliott, Clare Elwell, Katherine Hayden, Fiona Holland, Salman Karim, Colleen Loo, Jo Lowe, Rajesh Nair, Timothy Oakley, Antony Prakash, Parveen K Sharma, Stephen R Williams, R Hamish McAllister-Williams
BACKGROUND: The use of electroconvulsive therapy (ECT) is limited by concerns about its cognitive adverse effects. Preliminary evidence suggests that administering the glutamate antagonist ketamine with ECT might alleviate cognitive adverse effects and accelerate symptomatic improvement; we tested this in a randomised trial of low-dose ketamine. METHODS: In this multicentre, randomised, parallel-group study in 11 ECT suites serving inpatient and outpatient care settings in seven National Health Service trusts in the North of England, we recruited severely depressed patients, who were diagnosed as having unipolar or bipolar depressive episodes defined as moderate or severe by DSM-IV criteria, aged at least 18 years, and were able and willing to provide written consent to participate in the study...
March 27, 2017: Lancet Psychiatry
https://www.readbyqxmd.com/read/28357562/in-vivo-imaging-of-oxidative-stress-and-fronto-limbic-white-matter-integrity-in-young-adults-with-mood-disorders
#8
Daniel F Hermens, Sean N Hatton, Rico S C Lee, Sharon L Naismith, Shantel L Duffy, G Paul Amminger, Manreena Kaur, Elizabeth M Scott, Jim Lagopoulos, Ian B Hickie
Fronto-limbic connectivity is compromised in mood disorders, as reflected by impairments in white matter (WM) integrity revealed by diffusion tensor imaging. Although the underlying mechanisms remain unclear, disruption to normal myelination due to oxidative stress is thought to play a key role. We aimed to determine whether fronto-limbic WM integrity is compromised, and associated with in vivo antioxidant levels (indexed by glutathione; GSH), in young adults with unipolar depression (DEP) and bipolar (BD) disorders...
March 29, 2017: European Archives of Psychiatry and Clinical Neuroscience
https://www.readbyqxmd.com/read/28355277/modulation-of-the-immune-response-by-fonsecaea-pedrosoi-morphotypes-in-the-course-of-experimental-chromoblastomycosis-and-their-role-on-inflammatory-response-chronicity
#9
Isaque Medeiros Siqueira, Raffael Júnio Araújo de Castro, Luiza Chaves de Miranda Leonhardt, Márcio Sousa Jerônimo, Aluízio Carlos Soares, Tainá Raiol, Christiane Nishibe, Nalvo Almeida, Aldo Henrique Tavares, Christian Hoffmann, Anamelia Lorenzetti Bocca
A common theme across multiple fungal pathogens is their ability to impair the establishment of a protective immune response. Although early inflammation is beneficial in containing the infection, an uncontrolled inflammatory response is detrimental and may eventually oppose disease eradication. Chromoblastomycosis (CBM), a cutaneous and subcutaneous mycosis, caused by dematiaceous fungi, is capable of inducing a chronic inflammatory response. Muriform cells, the parasitic form of Fonsecaea pedrosoi, are highly prevalent in infected tissues, especially in long-standing lesions...
March 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28318493/-bipolar-disorders-in-oncology-characteristics-and-management
#10
Michel Reich, Nuria Kotecki
Bipolar disorders belong to the spectrum of mood disorders and represent a serious psychiatric comorbidity. Behaviors adopted by bipolar patients can foster cancer occurrence but also impact its management, especially during acute depressive or manic episode. Oncologists must adapt their protocols in order to obtain the best compliance for treatment and avoid any possible mood destabilization, with the inherent risk of suicidal attempt. Potential interactions between mood-stabilizing agents (lithium, divalproate, atypical antipsychotics, and anticonvulsivants) and oncologic treatment (chemotherapy, targeted therapy, immunotherapy, corticotherapy) will be particularly watched...
March 15, 2017: Bulletin du Cancer
https://www.readbyqxmd.com/read/28289283/the-dopamine-hypothesis-of-bipolar-affective-disorder-the-state-of-the-art-and-implications-for-treatment
#11
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/28281293/hypomania-checklist-32-cross-validation-of-shorter-versions-screening-for-bipolar-disorders-in-an-epidemiological-study
#12
T D Meyer, E Castelao, M Gholamrezaee, J Angst, M Preisig
OBJECTIVE: Self-reports such as Hypomania Checklist (HCL-32) can be used to enhance recognition of bipolar disorders, but they are often too long and only validated in clinical samples. The objectives of this study are therefore to test whether (i) the HCL-32 can be used for screening in the community and (ii) whether two previously suggested shorter versions would do as well. METHOD: Data stemmed from the CoLaus|PsyColaus, a prospective cohort study which included randomly selected residents aged 35-66 years from an urban area...
March 9, 2017: Acta Psychiatrica Scandinavica
https://www.readbyqxmd.com/read/28270633/-magnetic-stimulation-therapy-for-mood-disorder
#13
Shinsuke Kito
In Japan, approximately one million patients currently receive medical treatment for mood disorders. However, there are only a few available treatments for patients with treatment-resistant depression or bipolar depression. Repetitive transcranial magnetic stimulation (rTMS), a neuromodulation technique, has proven to be effective for treatment-resistant depression, and also has a potential therapeutic efficacy in patients with bipolar depression who do not respond to medication. Magnetic seizure therapy (MST) is an experimental technique for introducing a seizure by using rTMS, which demonstrates a therapeutic efficacy similar to that of electroconvulsive therapy (ECT), but with fewer cognitive side effects...
March 2017: Brain and Nerve, Shinkei Kenkyū No Shinpo
https://www.readbyqxmd.com/read/28269147/electrocardiogram-reconstruction-from-high-resolution-voltage-optical-mapping
#14
Ilija Uzelac, Conner Herndon, James Farmer, Flavio Fenton
Electrocardiogram recordings during opucal mapping experiments in heart tissue are commonly used tu monitor the health of the preparation and to obtain dominant frequencies during arrhythmic and defibrillatory studies. However the use of ECG reconstructed from optical mapping is seldom used and to date it has not been strictly validated. In this manuscript we present the first detailed validation and comparison of Optical Mapping ECG, or OM-ECG, with standard ECG recordings by calculating the electrostatic potential in space as a function of the voltage measured optically and describe the different approximations that can be used to obtain unipolar or bipolar ECG recordings...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28236995/-can-we-assess-the-efficacy-of-psychotherapies-in-a-clinical-trial
#15
N Correard, J-L Consoloni, R Belzeaux, E Fakra, M Adida, J-M Azorin
Extensive evidence demonstrates that psychotherapy can be an efficacious and effective health care service for a wide range of mental health and health conditions. Recently, an important distinction between efficacy research and effectiveness research has been made within research focused on the outcome of psychotherapy. Data from both efficacy and effectiveness studies are fundamental to a complete understanding of the potential impact of a psychotherapy and the way to carry successful psychotherapeutics interventions to routine clinical practice...
December 2016: L'Encéphale
https://www.readbyqxmd.com/read/28227376/electrocardiogram-reconstruction-from-high-resolution-voltage-optical-mapping
#16
Ilija Uzelac, Conner Herndon, James Farmer, Flavio Fenton, Ilija Uzelac, Conner Herndon, James Farmer, Flavio Fenton, Ilija Uzelac, Conner Herndon, James Farmer, Flavio Fenton
Electrocardiogram recordings during opucal mapping experiments in heart tissue are commonly used tu monitor the health of the preparation and to obtain dominant frequencies during arrhythmic and defibrillatory studies. However the use of ECG reconstructed from optical mapping is seldom used and to date it has not been strictly validated. In this manuscript we present the first detailed validation and comparison of Optical Mapping ECG, or OM-ECG, with standard ECG recordings by calculating the electrostatic potential in space as a function of the voltage measured optically and describe the different approximations that can be used to obtain unipolar or bipolar ECG recordings...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28220734/intentional-intravenous-mercury-injection
#17
G Yudelowitz
Mercury toxicity is commonly associated with vapour inhalation or oral ingestion, for which there exist definite treatment options.Intravenous mercury injection is rarely seen, with few documented cases. Treatment strategies are not clearly defined for such cases,although a few options do show benefit. This case report describes a 29-year-old man suffering from bipolar disorder, who presentedfollowing self-inflicted intravenous injection of mercury. Clinical and radiographic features, possible adverse clinical sequelae in preexistingmental illness and further complications are discussed, as well as possible treatment strategies in light of relevant literature...
January 30, 2017: South African Medical Journal, Suid-Afrikaanse Tydskrif Vir Geneeskunde
https://www.readbyqxmd.com/read/28213305/risk-of-suicide-according-to-the-level-of-psychiatric-contact-in-the-older-people-analysis-of-national-health-insurance-databases-in-taiwan
#18
Shin-Ting Yeh, Yee-Yung Ng, Shiao-Chi Wu
PURPOSE: Suicide in the older people is a serious problem worldwide; however the effect of psychiatric contact on the risk of suicide has not been fully explored. The aim of this study was to investigate the relationship between psychiatric contact and suicide in the older people in Taiwan. METHODS: A population-based database was used in this national case-control study. Propensity score matching was used to match older people who did and did not commit suicide from 2010 to 2012 by calendar year, gender, age, and area of residence...
February 1, 2017: Comprehensive Psychiatry
https://www.readbyqxmd.com/read/28183042/the-effect-of-asymmetrical-body-orientation-during-simulated-forward-falls-on-the-distal-upper-extremity-impact-response-of-healthy-people
#19
Timothy A Burkhart, Evan Brydges, Jennifer Stefanczyk, David M Andrews
The occurrence of distal upper extremity injuries resulting from forward falls (approximately 165,000 per year) has remained relatively constant for over 20years. Previous work has provided valuable insight into fall arrest strategies, but only symmetric falls in body postures that do not represent actual fall scenarios closely have been evaluated. This study quantified the effect of asymmetric loading and body postures on distal upper extremity response to simulated forward falls. Twenty participants were suspended from the Propelled Upper Limb fall ARest Impact System (PULARIS) in different torso and leg postures relative to the ground and to the sagittal plane (0°, 30° and 45°)...
January 27, 2017: Journal of Electromyography and Kinesiology
https://www.readbyqxmd.com/read/28167085/catheter-ablation-for-ventricular-tachycardia-in-patients-with-nonischemic-cardiomyopathy
#20
REVIEW
Nathaniel Thompson, Antonio Frontera, Masateru Takigawa, Ghassen Cheniti, Gregoire Massoullie, Hubert Cochet, Arnaud Denis, Arnaud Chaumeil, Nicolas Derval, Meleze Hocini, Michel Haissaguerre, Pierre Jais, Frederic Sacher
Although catheter ablation has been successful in reducing the recurrence of ventricular tachycardia in patients with ischemic disease, outcomes in patients with nonischemic cardiomyopathy (NICM) have not met with the same results. Success is predicated on a methodical approach to diagnosis of disease type and identification of critical substrate, and the ablation strategies used. Cardiac MRI with delayed enhancement is able to identify areas of substrate involvement, particularly in situations when conventional catheter mapping is not able to do so...
March 2017: Cardiac Electrophysiology Clinics
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