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Cognitive psychiatry

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https://www.readbyqxmd.com/read/28433458/linking-the-biological-underpinnings-of-depression-role-of-mitochondria-interactions-with-melatonin-inflammation-sirtuins-tryptophan-catabolites-dna-repair-and-oxidative-and-nitrosative-stress-with-consequences-for-classification-and-cognition
#1
REVIEW
George Anderson
The pathophysiological underpinnings of neuroprogressive processes in recurrent major depressive disorder (rMDD) are reviewed. A wide array of biochemical processes underlie MDD presentations and their shift to a recurrent, neuroprogressive course, including: increased immune-inflammation, tryptophan catabolites (TRYCATs), mitochondrial dysfunction, aryl hydrocarbonn receptor activation, and oxidative and nitrosative stress (O&NS), as well as decreased sirtuins and melatonergic pathway activity. These biochemical changes may have their roots in central, systemic and/or peripheral sites, including in the gut, as well as in developmental processes, such as prenatal stressors and breastfeeding consequences...
April 19, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28425185/the-influence-of-hippocampal-atrophy-on-the-cognitive-phenotype-of-dementia-with-lewy-bodies
#2
Greg J Elder, Karen Mactier, Sean J Colloby, Rosie Watson, Andrew M Blamire, John T O'Brien, John-Paul Taylor
OBJECTIVE: The level of hippocampal atrophy in dementia with Lewy bodies (DLB) is typically less than that observed in Alzheimer's disease (AD). However, it is not known how the cognitive phenotype of DLB is influenced by hippocampal atrophy or the atrophy of adjacent medial temporal lobe structures. METHODS: Dementia with Lewy bodies (n = 65), AD (n = 76) and control (n = 63) participants underwent 3T magnetic resonance imaging and cognitive Cambridge Cognitive Examination and Mini-Mental State Examination (CAMCOG and MMSE) assessments...
April 20, 2017: International Journal of Geriatric Psychiatry
https://www.readbyqxmd.com/read/28424390/-area-10-38-prospective-functions-in-ba10-and-semantic-hub-in-ba38
#3
Satoshi Umeda
This paper reviews the structural specificities and functional roles in Brodmann areas 10 and 38. A number of studies have focused on both areas through various approaches including neuropsychology, neuroimaging, psychiatry, neurology, and neurosurgery. Both areas 10 and 38 may have a substantially very complex higher-order cognitive functions, which are quite hard to disentangle. Here, I picked up some fundamental perspectives for reviewing previous studies, to provide efficient research orientations for the elucidation of functions in both areas...
April 2017: Brain and Nerve, Shinkei Kenkyū No Shinpo
https://www.readbyqxmd.com/read/28416813/brain-derived-neurotrophic-factor-val-66-met-genotype-and-ovarian-steroids-interactively-modulate-working-memory-related-hippocampal-function-in-women-a-multimodal-neuroimaging-study
#4
S-M Wei, E B Baller, P D Kohn, J S Kippenhan, B Kolachana, S J Soldin, D R Rubinow, P J Schmidt, K F Berman
Preclinical evidence suggests that the actions of ovarian steroid hormones and brain-derived neurotrophic factor (BDNF) are highly convergent on brain function. Studies in humanized mice document an interaction between estrus cycle-related changes in estradiol secretion and BDNF Val(66)Met genotype on measures of hippocampal function and anxiety-like behavior. We believe our multimodal imaging data provide the first demonstration in women that the effects of the BDNF Val/Met polymorphism on hippocampal function are selectively modulated by estradiol...
April 18, 2017: Molecular Psychiatry
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
#5
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/28416808/ptchd1-deficiency-induces-excitatory-synaptic-and-cognitive-dysfunctions-in-mouse
#6
D C Ung, G Iacono, H Méziane, E Blanchard, M-A Papon, M Selten, J-R van Rhijn, R Montjean, J Rucci, S Martin, A Fleet, M-C Birling, S Marouillat, R Roepman, M Selloum, A Lux, R-A Thépault, P Hamel, K Mittal, J B Vincent, O Dorseuil, H G Stunnenberg, P Billuart, N Nadif Kasri, Y Hérault, F Laumonnier
Synapse development and neuronal activity represent fundamental processes for the establishment of cognitive function. Structural organization as well as signalling pathways from receptor stimulation to gene expression regulation are mediated by synaptic activity and misregulated in neurodevelopmental disorders such as autism spectrum disorder (ASD) and intellectual disability (ID). Deleterious mutations in the PTCHD1 (Patched domain containing 1) gene have been described in male patients with X-linked ID and/or ASD...
April 18, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/28413088/a-retrospective-analysis-of-neurocognitive-impairment-in-older-patients-with-burn-injuries
#7
Emily G Holmes, Samuel W Jones, Sarah L Laughon
BACKGROUND: Older adults comprise a growing proportion of the United States population that is at risk for burns. However, few studies have examined cognitive function in this patient population. OBJECTIVE: The purpose of this study was to measure the prevalence and incidence of dementia and delirium in older adults admitted for burn injuries. METHODS: This was an Institutional Review Board-approved, retrospective study of all patients 65 years and older admitted to the University of North Carolina Jaycee Burn Center from 2005-2015...
March 6, 2017: Psychosomatics
https://www.readbyqxmd.com/read/28408985/new-drugs-in-psychiatry-focus-on-new-pharmacological-targets
#8
REVIEW
Filippo Caraci, Gian Marco Leggio, Salvatore Salomone, Filippo Drago
The approval of psychotropic drugs with novel mechanisms of action has been rare in recent years. To address this issue, further analysis of the pathophysiology of neuropsychiatric disorders is essential for identifying new pharmacological targets for psychotropic medications. In this report, we detail drug candidates being examined as treatments for psychiatric disorders. Particular emphasis is placed on agents with novel mechanisms of action that are being tested as therapies for depression, schizophrenia, or Alzheimer's disease...
2017: F1000Research
https://www.readbyqxmd.com/read/28400968/psychiatry-trainees-experiences-of-cognitive-behavioural-therapy-training-in-a-uk-deanery-a-qualitative-analysis
#9
Amy Alice Carson, Sarah Emily Clark
Aims and method To explore core psychiatry trainees' experiences of cognitive-behavioural therapy (CBT) training by using interpretative phenomenological analysis of semi-structured interviews conducted with seven core trainee psychiatrists in Yorkshire and the Humber Deanery. Results Four key themes emerged: (1) barriers to training; (2) guidance, with emphasis on the importance of supervision groups; (3) acquisition of new skills and confidence; (4) personal influence on the training experience. Clinical implications Many trainees in Yorkshire have a positive experience of CBT training; however, some also experience barriers to acquiring the relevant skills...
April 2017: BJPsych Bulletin
https://www.readbyqxmd.com/read/28398342/two-subgroups-of-antipsychotic-naive-first-episode-schizophrenia-patients-identified-with-a-gaussian-mixture-model-on-cognition-and-electrophysiology
#10
N Bak, B H Ebdrup, B Oranje, B Fagerlund, M H Jensen, S W Düring, M Ø Nielsen, B Y Glenthøj, L K Hansen
Deficits in information processing and cognition are among the most robust findings in schizophrenia patients. Previous efforts to translate group-level deficits into clinically relevant and individualized information have, however, been non-successful, which is possibly explained by biologically different disease subgroups. We applied machine learning algorithms on measures of electrophysiology and cognition to identify potential subgroups of schizophrenia. Next, we explored subgroup differences regarding treatment response...
April 11, 2017: Translational Psychiatry
https://www.readbyqxmd.com/read/28397842/structural-alterations-within-cerebellar-circuitry-are-associated-with-general-liability-for-common-mental-disorders
#11
A L Romer, A R Knodt, R Houts, B D Brigidi, T E Moffitt, A Caspi, A R Hariri
Accumulating mental-health research encourages a shift in focus toward transdiagnostic dimensional features that are shared across categorical disorders. In support of this shift, recent studies have identified a general liability factor for psychopathology-sometimes called the 'p factor'- that underlies shared risk for a wide range of mental disorders. Identifying neural correlates of this general liability would substantiate its importance in characterizing the shared origins of mental disorders and help us begin to understand the mechanisms through which the 'p factor' contributes to risk...
April 11, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/28393336/-using-the-cognitive-behavioral-therapy-to-improve-the-mental-health-of-women-with-breast-cancer
#12
Li-Hung Lee, Yu-Ping Lai, Cheng-I Yang
Previous studies have shown that patients with breast cancer may suffer from symptoms of psychological distress, such as: depression, anxiety, insomnia, and chronic fatigue. Nurses are expected to offer physical and mental support to these patients. Cognitive behavior therapy (CBT) is commonly used in psychiatry as well as in the treatment of patients with breast cancer. CBT is believed to reduce mental distress in patients by changing their negative cognitive schema. The present article discusses the mental problems of patients with breast cancer and introduces the effects of using CBT on patients with breast cancer...
April 2017: Hu Li za Zhi the Journal of Nursing
https://www.readbyqxmd.com/read/28389551/on-shame-and-voice-hearing
#13
Angela Woods
Hearing voices in the absence of another speaker-what psychiatry terms an auditory verbal hallucination-is often associated with a wide range of negative emotions. Mainstream clinical research addressing the emotional dimensions of voice-hearing has tended to treat these as self-evident, undifferentiated and so effectively interchangeable. But what happens when a richer, more nuanced understanding of specific emotions is brought to bear on the analysis of distressing voices? This article draws findings from the 'What is it like to hear voices' study conducted as part of the interdisciplinary Hearing the Voice project into conversation with philosopher Dan Zahavi's Self and Other: Exploring Subjectivity, Empathy and Shame to consider how a focus on shame can open up new questions about the experience of hearing voices...
April 7, 2017: Medical Humanities
https://www.readbyqxmd.com/read/28387208/validation-of-an-instrument-to-assess-the-mental-capacity-to-sign-an-enduring-power-of-attorney
#14
R Sf Ko, V Wc Lui, K C Lai, C Cy Chiu, L Cw Lam
OBJECTIVE: To describe the validation of an instrument to assess the mental capacity of an individual to sign an enduring power of attorney. METHODS: An instrument named Capacity Assessment to Sign an Enduring Power of Attorney (CASEPA) was developed following a literature review, focus group discussions, expert reviews, and pilot testing. Chinese persons aged ≥ 60 years who had a range of cognitive abilities were recruited from elderly care centres in Hong Kong to explore its psychometric properties...
March 2017: East Asian Archives of Psychiatry: Official Journal of the Hong Kong College of Psychiatrists
https://www.readbyqxmd.com/read/28382870/late-versus-early-onset-depression-in-elderly-patients-vascular-risk-and-cognitive-impairment
#15
Abdelhamid H Hashem, Maged Al-Adrousy Gomaa, Mohamed Nasr Elden Sadek, Ola Osama Khalaf
BACKGROUND: Three-quarters of patients with major depressive disorder have late-onset depression. Late-onset depression is more often associated with cognitive impairment than early-onset depression and evidences showed a relationship between vascular factors and late-life depression. OBJECTIVES: To compare cognitive functions between late-onset (≥60 years) and early-onset (<60 years) depression in elderly patients and to highlight the effect of vascular risk factors in elderly patients with late and early onset depression...
April 4, 2017: Current Aging Science
https://www.readbyqxmd.com/read/28376919/eye-movement-desensitization-and-reprocessing-therapy-versus-supportive-therapy-in-affective-relapse-prevention-in-bipolar-patients-with-a-history-of-trauma-study-protocol-for-a-randomized-controlled-trial
#16
Ana Moreno-Alcázar, Joaquim Radua, Ramon Landín-Romero, Laura Blanco, Mercè Madre, Maria Reinares, Mercè Comes, Esther Jiménez, Jose Manuel Crespo, Eduard Vieta, Victor Pérez, Patricia Novo, Marta Doñate, Romina Cortizo, Alicia Valiente-Gómez, Walter Lupo, Peter J McKenna, Edith Pomarol-Clotet, Benedikt L Amann
BACKGROUND: Up to 60% of patients with bipolar disorder (BD) have a history of traumatic events, which is associated with greater episode severity, higher risk of comorbidity and higher relapse rates. Trauma-focused treatment strategies for BD are thus necessary but studies are currently scarce. The aim of this study is to examine whether Eye Movement Desensitization and Reprocessing (EMDR) therapy focusing on adherence, insight, de-idealisation of manic symptoms, prodromal symptoms and mood stabilization can reduce episode severity and relapse rates and increase cognitive performance and functioning in patients with BD...
April 4, 2017: Trials
https://www.readbyqxmd.com/read/28373690/a-paternal-methyl-donor-rich-diet-altered-cognitive-and-neural-functions-in-offspring-mice
#17
D P Ryan, K S Henzel, B L Pearson, M E Siwek, A Papazoglou, L Guo, K Paesler, M Yu, R Müller, K Xie, S Schröder, L Becker, L Garrett, S M Hölter, F Neff, I Rácz, B Rathkolb, J Rozman, G Ehninger, M Klingenspor, T Klopstock, E Wolf, W Wurst, A Zimmer, H Fuchs, V Gailus-Durner, M Hrabě de Angelis, K Sidiropoulou, M Weiergräber, Y Zhou, D Ehninger
Dietary intake of methyl donors, such as folic acid and methionine, shows considerable intra-individual variation in human populations. While it is recognized that maternal departures from the optimum of dietary methyl donor intake can increase the risk for mental health issues and neurological disorders in offspring, it has not been explored whether paternal dietary methyl donor intake influences behavioral and cognitive functions in the next generation. Here, we report that elevated paternal dietary methyl donor intake in a mouse model, transiently applied prior to mating, resulted in offspring animals (methyl donor-rich diet (MD) F1 mice) with deficits in hippocampus-dependent learning and memory, impaired hippocampal synaptic plasticity and reduced hippocampal theta oscillations...
April 4, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/28360781/evaluation-of-the-relationship-between-major-depressive-disorder-and-bereavement-symptoms-in-elderly-patients-who-present-either-to-psychiatry-or-family-medicine
#18
İbrahim Taymur, Kadir Özdel, Cenk Aypak, Veli Duyan, Özlem Türedi, Buket Belkız Güngör, Yavuz Selvi
INTRODUCTION: We aimed to determine the level of bereavement and depression symptoms among elderly patients who experience the loss of a significant other and the relationship between depressive symptoms and bereavement symptoms. METHODS: The study sample consisted of elderly adults who lost a significant other at least 6 months prior to the submission time. Participants were recruited from patients who presented to either the psychiatry or family medicine outpatient unit of a Training and Research Hospital...
June 2016: Noro Psikiyatri Arsivi
https://www.readbyqxmd.com/read/28355326/soul-butterfly-mythological-nymph-psyche-in-philosophy-and-neuroscience
#19
Elena I Antonakou, Lazaros C Triarhou
The term "psyche" and its derivatives - including "Psychology" and "Psychiatry" - are rooted in classical philosophy and in mythology. Over the centuries, psyche has been the subject of discourse and contemplation, and of fable; it has also come to signify, in entomology, the order of Lepidoptera. In the current surge of research on brain and mind, there is a gradual transition from the psyche (or the "soul") to the specified descriptors defined by the fields of Behavioral, Cognitive and Integrative Neuroscience...
March 2017: Arquivos de Neuro-psiquiatria
https://www.readbyqxmd.com/read/28348382/delta-frequency-stimulation-of-cerebellar-projections-can-compensate-for-schizophrenia-related-medial-frontal-dysfunction
#20
K L Parker, Y C Kim, R M Kelley, A J Nessler, K-H Chen, V A Muller-Ewald, N C Andreasen, N S Narayanan
Schizophrenia involves abnormalities in the medial frontal cortex that lead to cognitive deficits. Here we investigate a novel strategy to normalize medial frontal brain activity by stimulating cerebellar projections. We used an interval timing task to study elementary cognitive processing that requires both frontal and cerebellar networks that are disrupted in patients with schizophrenia. We report three novel findings. First, patients with schizophrenia had dysfunctional delta rhythms between 1-4 Hz in the medial frontal cortex...
March 28, 2017: Molecular Psychiatry
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