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https://www.readbyqxmd.com/read/29166690/-facial-emotion-recognition-theory-of-mind-and-empathy-in-multiple-sclerosis
#1
Samar S Ayache, Moussa A Chalah, Tania Kuempfel, Frank Padberg, Jean-Pascal Lefaucheur, Ulrich Palm
Multiple sclerosis (MS), a chronic progressive inflammatory disease of the central nervous system, causes frequent disability, mood disorders, fatigue, and cognitive dysfunction. As a part of the last, social cognition is frequently disturbed in MS patients. It comprises empathy and social perception of emotions from facial, bodily and vocal cues. Social cognitive deficits worsen affect decoding, interpersonal relationship, and quality of life. Despite the impact of these deficits on global functioning, only a small number of studies have investigated its correlations and overlaps with MS symptoms...
November 2017: Fortschritte der Neurologie-Psychiatrie
https://www.readbyqxmd.com/read/29079138/a-homer-1-gene-variant-influences-brain-structure-and-function-lithium-effects-on-white-matter-and-antidepressant-response-in-bipolar-disorder-a-multimodal-genetic-imaging-study
#2
Francesco Benedetti, Sara Poletti, Clara Locatelli, Elena Mazza, Cristina Lorenzi, Alice Vitali, Martina Riberto, Silvia Brioschi, Benedetta Vai, Irene Bollettini, Elisa Melloni, Veronica Aggio, Andrea Falini, Andrea De Bartolomeis, Cristina Colombo
BACKGROUND: The Homer family of postsynaptic scaffolding proteins plays a crucial role in glutamate-mediated synaptic plasticity, a phenotype associated with Bipolar Disorder (BD). Homer is a target for antidepressants and mood stabilizers. The AA risk genotype of the Homer rs7713917 A>G SNP has been associated with mood disorders and suicide, and in healthy humans with brain function. Despite the evidence linking Homer 1 gene and function to mood disorder, as well as its involvement in animal models of depression, no study has yet investigated the role of Homer in bipolar depression and treatment response...
October 27, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28828187/exercise-promotes-neuroplasticity-in-both-healthy-and-depressed-brains-an-fmri-pilot-study
#3
Joanne Gourgouvelis, Paul Yielder, Bernadette Murphy
Memory impairments are a frequently reported cognitive symptom in people suffering from major depressive disorder (MDD) and often persist despite antidepressant therapy. Neuroimaging studies have identified abnormal hippocampal activity during memory processes in MDD. Exercise as an ad-on treatment for MDD is a promising therapeutic strategy shown to improve mood, cognitive function, and neural structure and function. To advance our understanding of how exercise impacts neural function in MDD, we must also understand how exercise impacts healthy individuals without MDD...
2017: Neural Plasticity
https://www.readbyqxmd.com/read/28717522/effect-of-hypoxic-injury-in-mood-disorder
#4
REVIEW
Fenglian Zhao, Junling Yang, Ranji Cui
Hypoxemia is a common complication of the diseases associated with the central nervous system, and neurons are highly sensitive to the availability of oxygen. Neuroplasticity is an important property of the neural system controlling breathing, memory, and cognitive ability. However, the underlying mechanism has not yet been clearly elucidated. In recent years, several pieces of evidence have highlighted the effect of hypoxic injury on neuronal plasticity in the pathogenesis and treatment of mood disorder. Therefore, the present study reviewed the relevant articles regarding hypoxic injury and neuronal plasticity and discussed the pathological changes and physiological functions of neurons in hypoxemia in order to provide a translational perspective to the relevance of hypoxic injury and mood disorder...
2017: Neural Plasticity
https://www.readbyqxmd.com/read/28711724/neurotrophic-and-inflammatory-markers-in-bipolar-disorder-a-prospective-study
#5
Seline van den Ameele, Violette Coppens, Jeroen Schuermans, Peter De Boer, Maarten Timmers, Erik Fransen, Bernard Sabbe, Manuel Morrens
Altered neurotrophic signaling is thought to impair neuroplasticity in bipolar disorder (BD). Brain-derived neurotrophic factor (BDNF) is proposed as a neurotrophic marker in BD. However, the current evidence for its use in monitoring disease activity and illness progression is conflicting and an exploration of additional neurotrophic markers is needed. This prospective case-control study investigated mood-specific changes in potential neurotrophic markers and their association to inflammatory activity. Patients with BD were included during an acute mood episode, either depressive (n=35) or (hypo)manic (n=32)...
July 5, 2017: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/28638351/transcranial-direct-current-stimulation-considerations-for-research-in-adolescent-depression
#6
REVIEW
Jonathan C Lee, Charles P Lewis, Zafiris J Daskalakis, Paul E Croarkin
Adolescent depression is a prevalent disorder with substantial morbidity and mortality. Current treatment interventions do not target relevant pathophysiology and are frequently ineffective, thereby leading to a substantial burden for individuals, families, and society. During adolescence, the prefrontal cortex undergoes extensive structural and functional changes. Recent work suggests that frontolimbic development in depressed adolescents is delayed or aberrant. The judicious application of non-invasive brain stimulation techniques to the prefrontal cortex may present a promising opportunity for durable interventions in adolescent depression...
2017: Frontiers in Psychiatry
https://www.readbyqxmd.com/read/28629225/cortical-plasticity-in-depression
#7
Mariagiovanna Cantone, Alessia Bramanti, Giuseppe Lanza, Manuela Pennisi, Placido Bramanti, Giovanni Pennisi, Rita Bella
Neural plasticity is considered the neurophysiological correlate of learning and memory, although several studies have also noted that it plays crucial roles in a number of neurological and psychiatric diseases. Indeed, impaired brain plasticity may be one of the pathophysiological mechanisms that underlies both cognitive decline and major depression. Moreover, a degree of cognitive impairment is frequently observed throughout the clinical spectrum of mood disorders, and the relationship between depression and cognition is often bidirectional...
May 2017: ASN Neuro
https://www.readbyqxmd.com/read/28585931/the-modulation-of-adult-neuroplasticity-is-involved-in-the-mood-improving-actions-of-atypical-antipsychotics-in-an-animal-model-of-depression
#8
M Morais, P Patrício, A Mateus-Pinheiro, N D Alves, A R Machado-Santos, J S Correia, J Pereira, L Pinto, N Sousa, J M Bessa
Depression is a prevalent psychiatric disorder with an increasing impact in global public health. However, a large proportion of patients treated with currently available antidepressant drugs fail to achieve remission. Recently, antipsychotic drugs have received approval for the treatment of antidepressant-resistant forms of major depression. The modulation of adult neuroplasticity, namely hippocampal neurogenesis and neuronal remodeling, has been considered to have a key role in the therapeutic effects of antidepressants...
June 6, 2017: Translational Psychiatry
https://www.readbyqxmd.com/read/28581531/genetics-and-pharmacogenetics-of-mood-disorders
#9
REVIEW
Alessandro Serretti
Genetic research in Psychiatry is viewed by clinicians with both hope and curiosity sometimes mixed with disillusionment. Indeed, in the last 30 years many results have not been confirmed and clinical applications are still missing. However recent findings suggest that we are at the beginning of a new era. A set of variants within neuroplasticity and inflammation genes have been identified as a valid basis for both bipolar disorder and major depression. Similarly, a set of genes has been identified as a liability factor for response and tolerability to antidepressants and the first clinical applications are already in the market...
April 30, 2017: Psychiatria Polska
https://www.readbyqxmd.com/read/28529805/physical-activity-modulates-common-neuroplasticity-substrates-in-major-depressive-and-bipolar-disorder
#10
REVIEW
Cristy Phillips
Mood disorders (MDs) are chronic, recurrent mental diseases that affect millions of individuals worldwide. Although the biogenic amine model has provided some clinical utility, a need remains to better understand the interrelated mechanisms that contribute to neuroplasticity deficits in MDs and the means by which various therapeutics mitigate them. Of those therapeutics being investigated, physical activity (PA) has shown clear and consistent promise. Accordingly, the aims of this review are to (1) explicate key modulators, processes, and interactions that impinge upon multiple susceptibility points to effectuate neuroplasticity deficits in MDs; (2) explore the putative mechanisms by which PA mitigates these features; (3) review protocols used to induce the positive effects of PA in MDs; and (4) highlight implications for clinicians and researchers...
2017: Neural Plasticity
https://www.readbyqxmd.com/read/28507774/footnotes-to-kraepelin-changes-in-the-classification-of-mood-disorders-with-dsm-5
#11
EDITORIAL
Nicola J Kalk, Allan H Young
SUMMARY: Reliable diagnosis of mood disorders continues to pose a challenge. This is surprising because they have been recognised clinically since classical times. Mood disorders are also common: major depressive disorder affects nearly 300 million people worldwide and bipolar affective disorder nearly 60 million and they are a major cause of disability. Nonetheless, the reliability trials of the updated Diagnostic and Statistical Manual, Fifth Edition (DSM-5) found that the reliability of the diagnosis of major depressive disorder was in the 'questionable' range...
May 2017: BJPsych Open
https://www.readbyqxmd.com/read/28490916/the-cannabis-withdrawal-syndrome-current-insights
#12
REVIEW
Udo Bonnet, Ulrich W Preuss
The cannabis withdrawal syndrome (CWS) is a criterion of cannabis use disorders (CUDs) (Diagnostic and Statistical Manual of Mental Disorders - Fifth Edition) and cannabis dependence (International Classification of Diseases [ICD]-10). Several lines of evidence from animal and human studies indicate that cessation from long-term and regular cannabis use precipitates a specific withdrawal syndrome with mainly mood and behavioral symptoms of light to moderate intensity, which can usually be treated in an outpatient setting...
2017: Substance Abuse and Rehabilitation
https://www.readbyqxmd.com/read/28442348/upregulation-of-neurotrophins-by-s-47445-a-novel-positive-allosteric-modulator-of-ampa-receptors-in-aged-rats
#13
Francesca Calabrese, Elisa Savino, Elisabeth Mocaer, Sylvie Bretin, Giorgio Racagni, Marco A Riva
At molecular levels, it has been shown that aging is associated with alterations in neuroplastic mechanisms. In this study, it was examined if the altered expression of neurotrophins observed in aged rats could be corrected by a chronic treatment with S 47445 (1-3-10mg/kg, p.o.), a novel selective positive allosteric modulator of the AMPA receptors. Both the mRNA and the protein levels of the neurotrophins Bdnf, NT-3 and Ngf were specifically measured in the prefrontal cortex and hippocampus (ventral and dorsal) of aged rats...
April 23, 2017: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/28373806/serum-brain-derived-neurotrophic-factor-levels-among-euthymic-adolescents-with-bipolar-disorder-type-i
#14
Nagihan Cevher Binici, Fatma Neslihan Inal Emiroğlu, Halil Resmi, Hülya Ellidokuz
INTRODUCTION: Bipolar disorder (BD) has been increasingly associated with abnormalities in neuroplasticity and cellular resilience in brain regions that are involved in mood and that affect regulation. Brain-derived neurotrophic factor (BDNF) is a member of the neurotrophin family that regulates neuroplasticity. The aims of the current study were to compare serum BDNF levels in euthymic adolescents with BD type I with those in controls and to investigate the relationship between clinical variables and serum BDNF levels in adolescents with BD type I...
September 2016: Noro Psikiyatri Arsivi
https://www.readbyqxmd.com/read/28323008/sub-chronic-variable-stress-induces-sex-specific-effects-on-glutamatergic-synapses-in-the-nucleus-accumbens
#15
Anna Brancato, Dana Bregman, H Francisica Ahn, Madeline L Pfau, Caroline Menard, Carla Cannizzaro, Scott J Russo, Georgia E Hodes
Men and women manifest different symptoms of depression and under current diagnostic criteria, depression is twice as prevalent in woman. However, little is known of the mechanisms contributing to these important sex differences. Sub-chronic variable stress (SCVS), a rodent model of depression, induces depression-like behaviors in female mice only, modeling clinical evidence of higher susceptibility to mood disorders in women. Accumulating evidence indicates that altered neuroplasticity of excitatory synapses in the nucleus accumbens (NAc) is a key pathophysiological feature of susceptibility to social stress in males...
May 14, 2017: Neuroscience
https://www.readbyqxmd.com/read/28320271/interplay-between-brain-bdnf-and-glutamatergic-systems-a-brief-state-of-the-evidence-and-association-with-the-pathogenesis-of-depression
#16
REVIEW
N V Gulyaeva
The excitatory neurotransmitter glutamate system and the brain-derived neurotrophic factor (BDNF) system are principally involved in phenomena of cellular and synaptic plasticity. These systems are interacting, and disclosing mechanisms of such interactions is critically important for understanding the machinery of neuroplasticity and its modulation in normal and pathological situations. The short state of evidence in this review addresses experimentally confirmed connections of these mechanisms and their potential relation to the pathogenesis of depression...
March 2017: Biochemistry. Biokhimii︠a︡
https://www.readbyqxmd.com/read/28140399/timing-of-light-exposure-affects-mood-and-brain-circuits
#17
REVIEW
T A Bedrosian, R J Nelson
Temporal organization of physiology is critical for human health. In the past, humans experienced predictable periods of daily light and dark driven by the solar day, which allowed for entrainment of intrinsic circadian rhythms to the environmental light-dark cycles. Since the adoption of electric light, however, pervasive exposure to nighttime lighting has blurred the boundaries of day and night, making it more difficult to synchronize biological processes. Many systems are under circadian control, including sleep-wake behavior, hormone secretion, cellular function and gene expression...
January 31, 2017: Translational Psychiatry
https://www.readbyqxmd.com/read/28001286/charting-the-course-of-electroconvulsive-therapy-where-have-we-been-and-where-are-we-headed
#18
Peter B Rosenquist, W Vaughn McCall, Nagy Youssef
Electroconvulsive therapy (ECT) is one of the oldest and best treatments for severe mental illness. A safe and highly effective option for treatment-resistant mood disorders, ECT can be a lifesaving treatment for people suffering from catatonia and acute suicidality. Less recognized are the benefits of ECT in the treatment of primary psychotic disorders, Parkinson's disease, and status epilepticus. Evidence from multisite clinical trials in the past decade shows an evolving standard for the delivery of ECT to achieve and maintain remission and quality of life...
December 1, 2016: Journal of Psychosocial Nursing and Mental Health Services
https://www.readbyqxmd.com/read/27956743/translational-profiling-of-stress-induced-neuroplasticity-in-the-ca3-pyramidal-neurons-of-bdnf-val66met-mice
#19
J D Gray, T G Rubin, J F Kogan, J Marrocco, J Weidmann, S Lindkvist, F S Lee, E F Schmidt, B S McEwen
Genetic susceptibility and environmental factors (such as stress) can interact to affect the likelihood of developing a mood disorder. Stress-induced changes in the hippocampus have been implicated in mood disorders, and mutations in several genes have now been associated with increased risk, such as brain-derived neurotrophic factor (BDNF). The hippocampus has important anatomical subdivisions, and pyramidal neurons of the vulnerable CA3 region show significant remodeling after chronic stress, but the mechanisms underlying their unique plasticity remain unknown...
December 13, 2016: Molecular Psychiatry
https://www.readbyqxmd.com/read/27891086/circuits-regulating-pleasure-and-happiness-mechanisms-of-depression
#20
Anton J M Loonen, Svetlana A Ivanova
According to our model of the regulation of appetitive-searching vs. distress-avoiding behaviors, the motivation to display these essential conducts is regulated by two parallel cortico-striato-thalamo-cortical, re-entry circuits, including the core and the shell parts of the nucleus accumbens, respectively. An entire series of basal ganglia, running from the caudate nucleus on one side, to the centromedial amygdala on the other side, controls the intensity of these reward-seeking and misery-fleeing behaviors by stimulating the activity of the (pre)frontal and limbic cortices...
2016: Frontiers in Human Neuroscience
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