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Psychological Medicine

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https://www.readbyqxmd.com/read/27931266/letter-to-the-editor-sodium-nitroprusside-for-schizophrenia-could-methodological-variables-account-for-the-different-results-obtained
#1
J P Maia-de-Oliveira, G B Baker, S M Dursun, J E C Hallak
No abstract text is available yet for this article.
December 9, 2016: Psychological Medicine
https://www.readbyqxmd.com/read/27928978/oxidative-stress-in-major-depressive-and-anxiety-disorders-and-the-association-with-antidepressant-use-results-from-a-large-adult-cohort
#2
C N Black, M Bot, P G Scheffer, B W J H Penninx
BACKGROUND: Oxidative stress has been implicated in the pathophysiology of major depressive disorder (MDD) and anxiety disorders and may be influenced by antidepressant use. This study investigated the association of oxidative stress, measured by plasma levels of F2-isoprostanes and 8-hydroxy-2'-deoxyguanosine (8-OHdG) reflecting oxidative lipid and DNA damage respectively, with MDD, anxiety disorders and antidepressant use in a large cohort. METHOD: Data was derived from the Netherlands Study of Depression and Anxiety including patients with current (N = 1619) or remitted (N = 610) MDD and/or anxiety disorder(s) (of which N = 704 antidepressant users) and 612 controls...
December 8, 2016: Psychological Medicine
https://www.readbyqxmd.com/read/27928975/assessing-causality-in-associations-between-cannabis-use-and-schizophrenia-risk-a-two-sample-mendelian-randomization-study
#3
S H Gage, H J Jones, S Burgess, J Bowden, G Davey Smith, S Zammit, M R Munafò
BACKGROUND: Observational associations between cannabis and schizophrenia are well documented, but ascertaining causation is more challenging. We used Mendelian randomization (MR), utilizing publicly available data as a method for ascertaining causation from observational data. METHOD: We performed bi-directional two-sample MR using summary-level genome-wide data from the International Cannabis Consortium (ICC) and the Psychiatric Genomics Consortium (PGC2). Single nucleotide polymorphisms (SNPs) associated with cannabis initiation (p < 10-5) and schizophrenia (p < 5 × 10-8) were combined using an inverse-variance-weighted fixed-effects approach...
December 8, 2016: Psychological Medicine
https://www.readbyqxmd.com/read/27928972/a-meta-analysis-of-acute-use-of-alcohol-and-the-risk-of-suicide-attempt
#4
G Borges, C L Bagge, C J Cherpitel, K R Conner, R Orozco, I Rossow
BACKGROUND: No review has used a meta-analytic approach to estimate common odds ratios (ORs) for the effect of acute use of alcohol (AUA) on suicide attempts. We aim to report the results of the first meta-analysis of controlled epidemiological studies on AUA and suicide attempt. METHOD: The English-language literature on Medline, PsycINFO and Google Scholar was searched for original articles and critical review on AUA and suicide attempt (period 1996-2015). Studies had to report an OR estimate for this association...
December 8, 2016: Psychological Medicine
https://www.readbyqxmd.com/read/27919307/patterns-and-correlates-of-major-depression-in-chinese-adults-a-cross-sectional-study-of-0-5-million-men-and-women
#5
Y Chen, D Bennett, R Clarke, Y Guo, C Yu, Z Bian, L Ma, Y Huang, Q Sun, N Zhang, X Zheng, J Chen, R Peto, K S Kendler, L Li, Z Chen
BACKGROUND: Worldwide 350 million people suffer from major depression, with the majority of cases occurring in low- and middle-income countries. We examined the patterns, correlates and care-seeking behaviour of adults suffering from major depressive episode (MDE) in China. METHOD: A nationwide study recruited 512 891 adults aged 30-79 years from 10 provinces across China during 2004-2008. The 12-month prevalence of MDE was assessed by the Modified Composite International Diagnostic Interview-short form...
December 6, 2016: Psychological Medicine
https://www.readbyqxmd.com/read/27917730/social-and-economic-consequences-of-alcohol-use-disorder-a-longitudinal-cohort-and-co-relative-analysis
#6
K S Kendler, H Ohlsson, K J Karriker-Jaffe, J Sundquist, K Sundquist
BACKGROUND: Although alcohol use disorder (AUD) is associated with future risk for psychosocial dysfunction, the degree to which this arises from a direct causal effect of AUD on functioning v. from correlated risk factors (also known as confounders) is less clearly established. METHOD: AUD was assessed from Swedish medical, criminal and pharmacy registries. In a large general population cohort, using Cox proportional hazard and regression models, we predicted from the onset of AUD four outcomes: early retirement, unemployment, social assistance, and individual income...
December 5, 2016: Psychological Medicine
https://www.readbyqxmd.com/read/27916012/further-evidence-of-a-cumulative-effect-of-social-disadvantage-on-risk-of-psychosis
#7
S A Stilo, C Gayer-Anderson, S Beards, K Hubbard, A Onyejiaka, A Keraite, S Borges, V Mondelli, P Dazzan, C Pariante, M Di Forti, R M Murray, C Morgan
BACKGROUND: A growing body of evidence suggests that indicators of social disadvantage are associated with an increased risk of psychosis. However, only a few studies have specifically looked at cumulative effects and long-term associations. The aims of this study are: To compare the prevalence of specific indicators of social disadvantage at, and prior to, first contact with psychiatric services in patients suffering their first episode of psychosis and in a control sample. To explore long-term associations, cumulative effects, and direction of effects...
December 5, 2016: Psychological Medicine
https://www.readbyqxmd.com/read/27894380/an-attention-and-interpretation-bias-for-illness-specific-information-in-chronic-fatigue-syndrome
#8
A M Hughes, T Chalder, C R Hirsch, R Moss-Morris
BACKGROUND: Studies have shown that specific cognitions and behaviours play a role in maintaining chronic fatigue syndrome (CFS). However, little research has investigated illness-specific cognitive processing in CFS. This study investigated whether CFS participants had an attentional bias for CFS-related stimuli and a tendency to interpret ambiguous information in a somatic way. It also determined whether cognitive processing biases were associated with co-morbidity, attentional control or self-reported unhelpful cognitions and behaviours...
November 29, 2016: Psychological Medicine
https://www.readbyqxmd.com/read/27894376/brain-substrates-underlying-auditory-speech-priming-in-healthy-listeners-and-listeners-with-schizophrenia
#9
C Wu, Y Zheng, J Li, H Wu, S She, S Liu, Y Ning, L Li
BACKGROUND: Under 'cocktail party' listening conditions, healthy listeners and listeners with schizophrenia can use temporally pre-presented auditory speech-priming (ASP) stimuli to improve target-speech recognition, even though listeners with schizophrenia are more vulnerable to informational speech masking. METHOD: Using functional magnetic resonance imaging, this study searched for both brain substrates underlying the unmasking effect of ASP in 16 healthy controls and 22 patients with schizophrenia, and brain substrates underlying schizophrenia-related speech-recognition deficits under speech-masking conditions...
November 29, 2016: Psychological Medicine
https://www.readbyqxmd.com/read/27894373/cognitive-effects-of-adjunctive-n-acetyl-cysteine-in-psychosis
#10
M Rapado-Castro, S Dodd, A I Bush, G S Malhi, D R Skvarc, Z X On, M Berk, O M Dean
BACKGROUND: Cognitive deficits are predictors of functional outcome in patients with psychosis. While conventional antipsychotics are relatively effective on positive symptoms, their impact on negative and cognitive symptoms is limited. Recent studies have established a link between oxidative stress and neurocognitive deficits in psychosis. N-acetylcysteine (NAC), a glutathione precursor with glutamatergic properties, has shown efficacy on negative symptoms and functioning in patients with schizophrenia and bipolar disorder, respectively...
November 29, 2016: Psychological Medicine
https://www.readbyqxmd.com/read/27894372/affective-lability-mediates-the-association-between-childhood-trauma-and-suicide-attempts-mixed-episodes-and-co-morbid-anxiety-disorders-in-bipolar-disorders
#11
M Aas, C Henry, F Bellivier, M Lajnef, S Gard, J-P Kahn, T V Lagerberg, S R Aminoff, T Bjella, M Leboyer, O A Andreassen, I Melle, B Etain
BACKGROUND: Many studies have shown associations between a history of childhood trauma and more severe or complex clinical features of bipolar disorders (BD), including suicide attempts and earlier illness onset. However, the psychopathological mechanisms underlying these associations are still unknown. Here, we investigated whether affective lability mediates the relationship between childhood trauma and the severe clinical features of BD. METHOD: A total of 342 participants with BD were recruited from France and Norway...
November 29, 2016: Psychological Medicine
https://www.readbyqxmd.com/read/27894371/pervasive-influence-of-maternal-and-paternal-criminal-offending-on-early-childhood-development-a-population-data-linkage-study
#12
K R Laurens, S Tzoumakis, M Kariuki, M J Green, M Hamde, F Harris, V J Carr, K Dean
BACKGROUND: Parental criminal offending is an established risk factor for offending among offspring, but little evidence is available indicating the impact of offending on early childhood functioning. We used data from a large Australian population cohort to determine associations between exposure to parental offending and a range of developmental outcomes at age 5 years. METHOD: Multi-generation data in 66 477 children and their parents from the New South Wales Child Development Study were combined using data linkage...
November 29, 2016: Psychological Medicine
https://www.readbyqxmd.com/read/27894368/effects-of-behavioural-activation-on-the-neural-basis-of-other-perspective-self-referential-processing-in-subthreshold-depression-a-functional-magnetic-resonance-imaging-study
#13
S Shiota, Y Okamoto, G Okada, K Takagaki, M Takamura, A Mori, S Yokoyama, Y Nishiyama, R Jinnin, R I Hashimoto, S Yamawaki
BACKGROUND: It has been demonstrated that negatively distorted self-referential processing, in which individuals evaluate one's own self, is a pathogenic mechanism in subthreshold depression that has a considerable impact on the quality of life and carries an elevated risk of developing major depression. Behavioural activation (BA) is an effective intervention for depression, including subthreshold depression. However, brain mechanisms underlying BA are not fully understood. We sought to examine the effect of BA on neural activation during other perspective self-referential processing in subthreshold depression...
November 29, 2016: Psychological Medicine
https://www.readbyqxmd.com/read/27884217/from-neurocognition-to-community-participation-in-serious-mental-illness-the-intermediary-role-of-dysfunctional-attitudes-and-motivation
#14
E C Thomas, L Luther, L Zullo, A T Beck, P M Grant
BACKGROUND: Evidence for a relationship between neurocognition and functional outcome in important areas of community living is robust in serious mental illness research. Dysfunctional attitudes (defeatist performance beliefs and asocial beliefs) have been identified as intervening variables in this causal chain. This study seeks to expand upon previous research by longitudinally testing the link between neurocognition and community participation (i.e. time in community-based activity) through dysfunctional attitudes and motivation...
November 25, 2016: Psychological Medicine
https://www.readbyqxmd.com/read/27876105/psychological-interventions-to-reduce-suicidality-in-high-risk-patients-with-major-depression-a-randomized-controlled-trial
#15
C M Celano, E E Beale, C A Mastromauro, J G Stewart, R A Millstein, R P Auerbach, C A Bedoya, J C Huffman
BACKGROUND: Positive psychological constructs have been associated with reduced suicidal ideation, and interventions to cultivate positive feelings have the potential to reduce suicide risk. This study compares the efficacy of a 6-week, telephone-based positive psychology (PP) intervention against a cognition-focused (CF) control intervention among patients recently hospitalized for depression and suicidal ideation or behavior. METHOD: A total of 65 adults with a current major depressive episode reporting suicidal ideation or a recent suicide attempt were enrolled from participating in-patient psychiatric units...
November 23, 2016: Psychological Medicine
https://www.readbyqxmd.com/read/27873559/educational-achievement-in-psychiatric-patients-and-their-siblings-a-register-based-study-in-30-000-individuals-in-the-netherlands
#16
W M Tempelaar, F Termorshuizen, J H MacCabe, M P M Boks, R S Kahn
BACKGROUND: Poor educational achievement is associated with a range of psychiatric disorders. Several studies suggest that this underperformance is due to cognitive deficits that commence before disease onset and reflect a genetic risk for this disorder. However, the specificity and the familial contribution of this cognitive deficit are not clear. We analysed lifetime educational achievement of psychiatric patients diagnosed with schizophrenia, bipolar or depressive disorder and their unaffected siblings...
November 22, 2016: Psychological Medicine
https://www.readbyqxmd.com/read/27873558/antenatal-depressive-symptoms-as-a-predictor-of-deterioration-in-perceived-social-support-across-the-perinatal-period-a-four-wave-cohort-study-in-turkey
#17
V Senturk, M Abas, M Dewey, O Berksun, R Stewart
BACKGROUND: In a perinatal cohort of women in urban and rural Turkey, we investigated associations between antenatal depressive symptoms and subsequent changes in perceived quality of key family relationships. METHOD: Of 730 women recruited in their third trimester (94.6% participation), 578 (79.2%) were reassessed at a mean of 4.1 (s.d. = 3.3) months after childbirth, 488 (66.8%) were reassessed at 13.7 (s.d. = 2.9) months, and 448 (61.4%) at 20.8 (s.d. = 2.7) months...
November 22, 2016: Psychological Medicine
https://www.readbyqxmd.com/read/27873557/face-processing-in-adolescents-with-positive-and-negative-threat-bias
#18
C M Sylvester, S E Petersen, J L Luby, D M Barch
BACKGROUND: Individuals with anxiety disorders exhibit a 'vigilance-avoidance' pattern of attention to threatening stimuli when threatening and neutral stimuli are presented simultaneously, a phenomenon referred to as 'threat bias'. Modifying threat bias through cognitive retraining during adolescence reduces symptoms of anxiety, and so elucidating neural mechanisms of threat bias during adolescence is of high importance. We explored neural mechanisms by testing whether threat bias in adolescents is associated with generalized or threat-specific differences in the neural processing of faces...
November 22, 2016: Psychological Medicine
https://www.readbyqxmd.com/read/27869064/transdiagnostic-brain-responses-to-disorder-related-threat-across-four-psychiatric-disorders
#19
K Feldker, C Y Heitmann, P Neumeister, S V Tupak, E Schrammen, R Moeck, P Zwitserlood, M Bruchmann, T Straube
BACKGROUND: There is an ongoing debate whether transdiagnostic neural mechanisms are shared by different anxiety-related disorders or whether different disorders show distinct neural correlates. To investigate this issue, studies controlling for design and stimuli across multiple anxiety-related disorders are needed. METHOD: The present functional magnetic resonance imaging study investigated neural correlates of visual disorder-related threat processing across unmedicated patients suffering from panic disorder (n = 20), social anxiety disorder (n = 20), dental phobia (n = 16) and post-traumatic stress disorder (n = 11) relative to healthy controls (HC; n = 67)...
November 21, 2016: Psychological Medicine
https://www.readbyqxmd.com/read/27869058/relationship-of-amotivation-to-neurocognition-self-efficacy-and-functioning-in-first-episode-psychosis-a-structural-equation-modeling-approach
#20
W C Chang, V W Y Kwong, C L M Hui, S K W Chan, E H M Lee, E Y H Chen
BACKGROUND: Better understanding of the complex interplay among key determinants of functional outcome is crucial to promoting recovery in psychotic disorders. However, this is understudied in the early course of illness. We aimed to examine the relationships among negative symptoms, neurocognition, general self-efficacy and global functioning in first-episode psychosis (FEP) patients using structural equation modeling (SEM). METHOD: Three hundred and twenty-one Chinese patients aged 26-55 years presenting with FEP to an early intervention program in Hong Kong were recruited...
November 21, 2016: Psychological Medicine
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