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Biological Psychiatry

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https://www.readbyqxmd.com/read/28526398/genomics-of-posttraumatic-stress-disorder-sequencing-stress-and-modeling-misfortune
#1
Murray B Stein
No abstract text is available yet for this article.
May 5, 2017: Biological Psychiatry
https://www.readbyqxmd.com/read/28527567/a-case-of-recovery-after-delayed-intracranial-hemorrhage-after-deep-brain-stimulation-for-treatment-resistant-depression
#2
LETTER
Raphaëlle Richieri, Pierre-Yves Borius, Michel Cermolacce, Bruno Millet, Christophe Lançon, Jean Régis
No abstract text is available yet for this article.
May 2, 2017: Biological Psychiatry
https://www.readbyqxmd.com/read/28506438/prion-like-spreading-in-tauopathies
#3
REVIEW
Jacob I Ayers, Benoit I Giasson, David R Borchelt
Tau is a microtubule-associated protein that functions in regulating cytoskeleton dynamics, especially in neurons. Misfolded and aggregated forms of tau produce pathological structures in a number of neurodegenerative diseases, including Alzheimer's disease (AD) and tauopathy dementias. These disorders can present with a sporadic etiology, such as in AD, or a familial etiology, such as in some cases of frontotemporal dementia with parkinsonism. Notably, the pathological features of tau pathology in these diseases can be very distinct...
April 13, 2017: Biological Psychiatry
https://www.readbyqxmd.com/read/28527566/abnormalities-in-high-energy-phosphate-metabolism-in-first-episode-bipolar-disorder-measured-using-31-p-magnetic-resonance-spectroscopy
#4
Fei Du, Cagri Yuksel, Virginie-Anne Chouinard, Polly Huynh, Kyle Ryan, Bruce M Cohen, Dost Öngür
BACKGROUND: Brain energy metabolism is critical for supporting synaptic function and information processing. A growing body of evidence suggests abnormalities in brain bioenergetics in psychiatric disorders, including both bipolar disorder (BD) and schizophrenia. (31)P magnetic resonance spectroscopy provides a noninvasive window into these processes in vivo. Using this approach, we previously showed that patients with BD show normal adenosine triphosphate (ATP) and phosphocreatine levels at rest but cannot maintain normal ATP levels in the visual cortex during times of high energy demand (photic stimulation)...
April 7, 2017: Biological Psychiatry
https://www.readbyqxmd.com/read/28499489/neuronal-pas-domain-proteins-1-and-3-are-master-regulators-of-neuropsychiatric-risk-genes
#5
Jacob J Michaelson, Min-Kyoo Shin, Jin-Young Koh, Leo Brueggeman, Angela Zhang, Aaron Katzman, Latisha McDaniel, Mimi Fang, Miles Pufall, Andrew A Pieper
BACKGROUND: NPAS3 has been established as a robust genetic risk factor in major mental illness. In mice, loss of neuronal PAS domain protein 3 (NPAS3) impairs postnatal hippocampal neurogenesis, while loss of the related protein NPAS1 promotes it. These and other findings suggest a critical role for NPAS proteins in neuropsychiatric functioning, prompting interest in the molecular pathways under their control. METHODS: We used RNA sequencing coupled with chromatin immunoprecipitation sequencing to identify genes directly regulated by NPAS1 and NPAS3 in the hippocampus of wild-type, Npas1(-/-), and Npas3(-/-) mice...
April 6, 2017: Biological Psychiatry
https://www.readbyqxmd.com/read/28465019/first-dose-methylphenidate-induced-changes-in-brain-functional-connectivity-are-correlated-with-3-month-attention-deficit-hyperactivity-disorder-symptom-response
#6
Richard B Silberstein, Florence Levy, Andrew Pipingas, Maree Farrow
BACKGROUND: Attention-deficit/hyperactivity disorder (ADHD) symptoms are most commonly treated with stimulant medication such as methylphenidate (MPH); however, approximately 25% of patients show little or no symptomatic response. We examined the extent to which initial changes in brain functional connectivity (FC) associated with the first MPH dose in boys newly diagnosed with ADHD predict MPH-associated changes in ADHD inattentiveness and hyperactivity symptoms at 3 months. METHODS: Brain FC was estimated using steady-state visual evoked potential partial coherence before and 90 minutes after the administration of the first MPH dose to 40 stimulant drug-naïve boys newly diagnosed with ADHD while they performed the AX version of the continuous performance task...
April 5, 2017: Biological Psychiatry
https://www.readbyqxmd.com/read/28460841/low-endogenous-fibroblast-growth-factor-2%C3%A2-levels-are-associated-with-heightened-conditioned-fear-expression-in-rats-and-humans
#7
Bronwyn M Graham, Dino Zagic, Rick Richardson
BACKGROUND: Hippocampal concentrations of the neurotrophic factor fibroblast growth factor 2 (FGF2) are negatively associated with the expression of fear following conditioning in rats. Heightened conditioned fear expression may be a prospective risk factor for the development of human anxiety and trauma disorders. However, the relationship between conditioned fear expression and FGF2 is yet to be established in humans. METHODS: Using a cross-species approach, we first investigated the relationship between serum concentrations of FGF2 and individual differences in conditioned fear expression in rats (n = 19)...
April 5, 2017: Biological Psychiatry
https://www.readbyqxmd.com/read/28476208/transcriptome-alterations-in-prefrontal-pyramidal-cells-distinguish-schizophrenia-from-bipolar-and-major-depressive-disorders
#8
Dominique Arion, Zhiguang Huo, John F Enwright, John P Corradi, George Tseng, David A Lewis
BACKGROUND: Impairments in certain cognitive processes (e.g., working memory) are typically most pronounced in schizophrenia (SZ), intermediate in bipolar disorder, and least in major depressive disorder. Given that working memory depends, in part, on neural circuitry that includes pyramidal cells in layer 3 (L3) and layer 5 (L5) of the dorsolateral prefrontal cortex (DLPFC), we sought to determine if transcriptome alterations in these neurons were shared or distinctive for each diagnosis...
April 4, 2017: Biological Psychiatry
https://www.readbyqxmd.com/read/28506437/association-between-interleukin-6-and-striatal-prediction-error-signals-following-acute-stress-in-healthy-female-participants
#9
Michael T Treadway, Roee Admon, Amanda R Arulpragasam, Malavika Mehta, Samuel Douglas, Gordana Vitaliano, David P Olson, Jessica A Cooper, Diego A Pizzagalli
BACKGROUND: Stress is widely known to alter behavioral responses to rewards and punishments. It is believed that stress may precipitate these changes through modulation of corticostriatal circuitry involved in reinforcement learning and motivation, although the intervening mechanisms remain unclear. One candidate is inflammation, which can rapidly increase following stress and can disrupt dopamine-dependent reward pathways. METHODS: Here, in a sample of 88 healthy female participants, we first assessed the effect of an acute laboratory stress paradigm on levels of plasma interleukin-6 (IL-6), a cytokine known to be both responsive to stress and elevated in depression...
March 28, 2017: Biological Psychiatry
https://www.readbyqxmd.com/read/28476207/real-time-functional-magnetic-resonance-imaging-amygdala-neurofeedback-changes-positive-information-processing-in-major-depressive-disorder
#10
Kymberly D Young, Masaya Misaki, Catherine J Harmer, Teresa Victor, Vadim Zotev, Raquel Phillips, Greg J Siegle, Wayne C Drevets, Jerzy Bodurka
BACKGROUND: In participants with major depressive disorder who are trained to upregulate their amygdalar hemodynamic responses during positive autobiographical memory recall with real-time functional magnetic resonance imaging neurofeedback (rtfMRI-nf) training, depressive symptoms diminish. This study tested whether amygdalar rtfMRI-nf also changes emotional processing of positive and negative stimuli in a variety of behavioral and imaging tasks. METHODS: Patients with major depressive disorder completed two rtfMRI-nf sessions (18 received amygdalar rtfMRI-nf, 16 received control parietal rtfMRI-nf)...
March 28, 2017: Biological Psychiatry
https://www.readbyqxmd.com/read/28457485/motor-activity-markers-of-circadian-timekeeping-are-related-to-ketamine-s-rapid-antidepressant-properties
#11
Wallace C Duncan, Elizabeth Slonena, Nadia S Hejazi, Nancy Brutsche, Kevin C Yu, Lawrence Park, Elizabeth D Ballard, Carlos A Zarate
BACKGROUND: The rapid clinical antidepressant effects of the glutamatergic modulator ketamine may be due to its ability to restore synaptic plasticity and related effects on sleep-wake and circadian systems. Preclinical studies indicate that ketamine alters expression of circadian clock-associated molecules, and clinical studies of ketamine on plasticity-related biomarkers further suggest an association with sleep slow waves and sleep homeostasis. METHODS: Wrist-activity monitors were used to examine the pharmacologic and rapid antidepressant effects of ketamine on markers of circadian timekeeping (amplitude and timing) in mood disorders...
March 28, 2017: Biological Psychiatry
https://www.readbyqxmd.com/read/28456330/the-effects-of-%C3%AE-adrenergic-blockade-on-the-degrading-effects-of-eye-movements-on-negative-autobiographical-memories
#12
Marianne Littel, J Leon Kenemans, Johanna M P Baas, H N Alexander Logemann, Nellie Rijken, Malou Remijn, Rutger J Hassink, Iris M Engelhard, Marcel A van den Hout
BACKGROUND: Eye movement desensitization and reprocessing (EMDR) is an effective treatment for posttraumatic stress disorder. During EMDR, patients make horizontal eye movements (EMs) while simultaneously recalling a traumatic memory, which renders the memory less vivid and emotional when it is later recalled again. Recalling highly emotional autobiographical memories enhances noradrenergic neurotransmission. Noradrenaline (NA) strengthens memory (re)consolidation. However, memories become less vivid after recall+EMs...
March 28, 2017: Biological Psychiatry
https://www.readbyqxmd.com/read/28359566/increased-plasma-beta-secretase-1-may-predict-conversion-to-alzheimer-s-disease-dementia-in-individuals-with-mild-cognitive-impairment
#13
Yong Shen, Haibo Wang, Qiying Sun, Hailan Yao, Andrew P Keegan, Mike Mullan, Jeffrey Wilson, Simone Lista, Thomas Leyhe, Christoph Laske, Dan Rujescu, Allan Levey, Anders Wallin, Kaj Blennow, Rena Li, Harald Hampel
BACKGROUND: Increased beta-secretase 1 (BACE1) activity has consistently been detected in brain tissue and cerebrospinal fluid of subjects with mild cognitive impairment (MCI) and probable Alzheimer's disease (AD) compared with control subjects. The collection of cerebrospinal fluid by lumbar puncture is invasive. We sought to identify the presence of plasma BACE1 activity and determine potential alterations in subjects with MCI with clinical follow-up examinations for 3 years using patients with diagnosed probable AD dementia compared with healthy control subjects...
March 27, 2017: Biological Psychiatry
https://www.readbyqxmd.com/read/28434654/compulsive-addiction-like-aggressive-behavior-in-mice
#14
Sam A Golden, Conor Heins, Marco Venniro, Daniele Caprioli, Michelle Zhang, David H Epstein, Yavin Shaham
BACKGROUND: Some people are highly motivated to seek aggressive encounters, and among those who have been incarcerated for such behavior, recidivism rates are high. These observations echo two core features of drug addiction: high motivation to seek addictive substances, despite adverse consequences, and high relapse rates. Here we used established rodent models of drug addiction to determine whether they would be sensitive to "addiction-like" features of aggression in CD-1 mice. METHODS: In experiments 1 and 2, we trained older CD-1 mice to lever press for opportunities to attack younger C57BL6/J mice...
March 17, 2017: Biological Psychiatry
https://www.readbyqxmd.com/read/28460842/the-emergence-of-network-inefficiencies-in-infants-with-autism-spectrum-disorder
#15
John D Lewis, Alan C Evans, John R Pruett, Kelly N Botteron, Robert C McKinstry, Lonnie Zwaigenbaum, Annette Estes, D Louis Collins, Penelope Kostopoulos, Guido Gerig, Stephen Dager, Sarah Paterson, Robert T Schultz, Martin Styner, Heather Hazlett, Joseph Piven
BACKGROUND: Autism spectrum disorder (ASD) is a developmental disorder defined by behavioral features that emerge during the first years of life. Research indicates that abnormalities in brain connectivity are associated with these behavioral features. However, the inclusion of individuals past the age of onset of the defining behaviors complicates interpretation of the observed abnormalities: they may be cascade effects of earlier neuropathology and behavioral abnormalities. Our recent study of network efficiency in a cohort of 24-month-olds at high and low familial risk for ASD reduced this confound; we reported reduced network efficiencies in toddlers classified with ASD...
March 16, 2017: Biological Psychiatry
https://www.readbyqxmd.com/read/28438413/functional-redundancy-between-canonical-endocannabinoid-signaling-systems-in-the-modulation-of-anxiety
#16
Gaurav Bedse, Nolan D Hartley, Emily Neale, Andrew D Gaulden, Toni A Patrick, Philip J Kingsley, Md Jashim Uddin, Niels Plath, Lawrence J Marnett, Sachin Patel
BACKGROUND: Increasing the available repertoire of effective treatments for mood and anxiety disorders represents a critical unmet need. Pharmacological augmentation of endogenous cannabinoid (eCB) signaling has been suggested to represent a novel approach to the treatment of anxiety disorders; however, the functional interactions between two canonical eCB pathways mediated via anandamide (N-arachidonylethanolamine [AEA]) and 2-arachidonoylglycerol (2-AG) in the regulation of anxiety are not well understood...
March 15, 2017: Biological Psychiatry
https://www.readbyqxmd.com/read/28454621/it-is-time-to-address-the-crisis-in-the-pharmacotherapy-of-posttraumatic-stress-disorder-a-consensus-statement-of-the-ptsd-psychopharmacology-working-group
#17
LETTER
John H Krystal, Lori L Davis, Thomas C Neylan, Murray A Raskind, Paula P Schnurr, Murray B Stein, Jennifer Vessicchio, Brian Shiner, Theresa D Gleason, Grant D Huang
No abstract text is available yet for this article.
March 14, 2017: Biological Psychiatry
https://www.readbyqxmd.com/read/28434655/apolipoprotein-e-receptors-and-modulation-of-alzheimer-s-disease
#18
REVIEW
Na Zhao, Chia-Chen Liu, Wenhui Qiao, Guojun Bu
Apolipoprotein E (apoE) is a lipid carrier in both the peripheral and the central nervous systems. Lipid-loaded apoE lipoprotein particles bind to several cell surface receptors to support membrane homeostasis and injury repair in the brain. Considering prevalence and relative risk magnitude, the ε4 allele of the APOE gene is the strongest genetic risk factor for late-onset Alzheimer's disease (AD). ApoE4 contributes to AD pathogenesis by modulating multiple pathways, including but not limited to the metabolism, aggregation, and toxicity of amyloid-β peptide, tauopathy, synaptic plasticity, lipid transport, glucose metabolism, mitochondrial function, vascular integrity, and neuroinflammation...
March 14, 2017: Biological Psychiatry
https://www.readbyqxmd.com/read/28410627/polyunsaturated-fatty-acids-in-perinatal-depression-a-systematic-review-and-meta-analysis
#19
Pao-Yen Lin, Cheng-Ho Chang, Mary Foong-Fong Chong, Helen Chen, Kuan-Pin Su
BACKGROUND: Omega-3 (or n-3) polyunsaturated fatty acids (PUFAs) are promising antidepressant treatments for perinatal depression (PND) because of supporting evidence from clinical trials, the advantage in safety, and their anti-inflammatory and neuroplastic effects. Although several observational studies have shown n-3 PUFA deficits in women with PND, the results of individual PUFAs from different studies were inconsistent. METHODS: This systematic review and meta-analysis aims to compare the levels of PUFA indices, including eicosapentaenoic acid, docosahexaenoic acid, arachidonic acid, total n-3, total n-6, and the n-6/n-3 ratio between women with PND and healthy control subjects...
March 9, 2017: Biological Psychiatry
https://www.readbyqxmd.com/read/28392081/increased-extra-axial-cerebrospinal-fluid-in-high-risk-infants-who-later-develop-autism
#20
Mark D Shen, Sun Hyung Kim, Robert C McKinstry, Hongbin Gu, Heather C Hazlett, Christine W Nordahl, Robert W Emerson, Dennis Shaw, Jed T Elison, Meghan R Swanson, Vladimir S Fonov, Guido Gerig, Stephen R Dager, Kelly N Botteron, Sarah Paterson, Robert T Schultz, Alan C Evans, Annette M Estes, Lonnie Zwaigenbaum, Martin A Styner, David G Amaral, Joseph Piven, J Piven, H C Hazlett, C Chappell, S Dager, A Estes, D Shaw, K Botteron, R McKinstry, J Constantino, J Pruett, R Schultz, L Zwaigenbaum, J Elison, A C Evans, D L Collins, G B Pike, V Fonov, P Kostopoulos, S Das, G Gerig, M Styner, H Gu
BACKGROUND: We previously reported that infants who developed autism spectrum disorder (ASD) had increased cerebrospinal fluid (CSF) in the subarachnoid space (i.e., extra-axial CSF) from 6 to 24 months of age. We attempted to confirm and extend this finding in a larger independent sample. METHODS: A longitudinal magnetic resonance imaging study of infants at risk for ASD was carried out on 343 infants, who underwent neuroimaging at 6, 12, and 24 months. Of these infants, 221 were at high risk for ASD because of an older sibling with ASD, and 122 were at low risk with no family history of ASD...
March 6, 2017: Biological Psychiatry
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