Read by QxMD icon Read

Biomarkers in Psychiatry

C Bardy, M van den Hurk, B Kakaradov, J A Erwin, B N Jaeger, R V Hernandez, T Eames, A A Paucar, M Gorris, C Marchand, R Jappelli, J Barron, A K Bryant, M Kellogg, R S Lasken, B P F Rutten, H W M Steinbusch, G W Yeo, F H Gage
Human neural progenitors derived from pluripotent stem cells develop into electrophysiologically active neurons at heterogeneous rates, which can confound disease-relevant discoveries in neurology and psychiatry. By combining patch clamping, morphological and transcriptome analysis on single-human neurons in vitro, we defined a continuum of poor to highly functional electrophysiological states of differentiated neurons. The strong correlations between action potentials, synaptic activity, dendritic complexity and gene expression highlight the importance of methods for isolating functionally comparable neurons for in vitro investigations of brain disorders...
October 4, 2016: Molecular Psychiatry
C J Westmark, D K Sokol, B Maloney, D K Lahiri
Fragile X syndrome (FXS) is the most common form of inherited intellectual disability and is associated with up to 5% of autism cases. Several promising drugs are in preclinical testing for FXS; however, bench-to-bedside plans for the clinic are severely limited due to lack of validated biomarkers and outcome measures. Published work from our laboratories has demonstrated altered levels of amyloid-beta (Aβ) precursor protein (APP) and its metabolites in FXS and idiopathic autism. Westmark and colleagues have focused on β-secretase (amyloidogenic) processing and the accumulation of Aβ peptides in adult FXS models, whereas Lahiri and Sokol have studied α-secretase (non-amyloidogenic or anabolic) processing and altered levels of sAPPα and Aβ in pediatric autism and FXS...
October 2016: Molecular Psychiatry
Keith Fluegge
BACKGROUND: Neurodevelopmental disorders are increasing in prevalence worldwide. Previous work suggests that exposure to the environmental air pollutant and greenhouse gas - nitrous oxide (N2O) - may be an etiological factor in neurodevelopmental disorders through the targeting of several neural correlates. METHODOLOGY: While a number of recent systematic reviews have addressed the role of general anesthesia in the surgical setting and neurodevelopmental outcomes, a narrative mini-review was conducted to first define and characterize the relevant variables (i...
August 18, 2016: Environmental Toxicology and Pharmacology
Ida Kim Wium-Andersen, Maj Vinberg, Lars Vedel Kessing, Roger S McIntyre
BACKGROUND: Personalized medicine is a model in which a patient's unique clinical, genetic, and environmental characteristics are the basis for treatment and prevention. Aim, method, and results: This review aims to describe the current tools, phenomenological features, clinical risk factors, and biomarkers used to provide personalized medicine. Furthermore, this study describes the target areas in which they can be applied including diagnostics, treatment selection and response, assessment of risk of side-effects, and prevention...
August 26, 2016: Nordic Journal of Psychiatry
Ganesan Venkatasubramanian, Matcheri S Keshavan
No abstract text is available yet for this article.
March 2016: Annals of Neurosciences
Sahib S Khalsa, Rachel C Lapidus
Disrupted interoception is a prominent feature of the diagnostic classification of several psychiatric disorders. However, progress in understanding the interoceptive basis of these disorders has been incremental, and the application of interoception in clinical treatment is currently limited to panic disorder. To examine the degree to which the scientific community has recognized interoception as a construct of interest, we identified and individually screened all articles published in the English language on interoception and associated root terms in Pubmed, Psychinfo, and ISI Web of Knowledge...
2016: Frontiers in Psychiatry
A Gururajan, M E Naughton, K A Scott, R M O'Connor, G Moloney, G Clarke, J Dowling, A Walsh, F Ismail, G Shorten, L Scott, D M McLoughlin, J F Cryan, T G Dinan
There is a growing emphasis in the field of psychiatry on the need to identify candidate biomarkers to aid in diagnosis and clinical management of depression, particularly with respect to predicting response to specific therapeutic strategies. MicroRNAs are small nucleotide sequences with the ability to regulate gene expression at the transcriptomic level and emerging evidence from a range of studies has highlighted their biomarker potential. Here we compared healthy controls (n=20) with patients diagnosed with major depression (n=40) and who were treatment-resistant to identify peripheral microRNA biomarkers, which could be used for diagnosis and to predict response to electroconvulsive therapy (ECT) and ketamine (KET) infusions, treatments that have previously shown to be effective in treatment-resistant depression (TRD)...
2016: Translational Psychiatry
N Bartolotti, D A Bennett, O Lazarov
Cyclic-AMP response element-binding protein (CREB) signaling has a critical role in the formation of memories. CREB signaling is dysfunctional in the brains of mouse models of Alzheimer's disease (AD), and evidence suggests that CREB signaling may be disrupted in human AD brains as well. Here, we show that both CREB and its activated form pCREB-Ser(133) (pCREB) are reduced in the prefrontal cortex of AD patients. Similarly, the transcription cofactors CREB-binding protein (CBP) and p300 are reduced in the prefrontal cortex of AD patients, indicating additional dysfunction of CREB signaling in AD...
September 2016: Molecular Psychiatry
The Lancet Psychiatry
No abstract text is available yet for this article.
August 2016: Lancet Psychiatry
Paul E Croarkin, Stephanie H Ameis
No abstract text is available yet for this article.
2016: Frontiers in Psychiatry
Borwin Bandelow, David Baldwin, Marianna Abelli, Blanca Bolea-Alamanac, Michel Bourin, Samuel R Chamberlain, Eduardo Cinosi, Simon Davies, Katharina Domschke, Naomi Fineberg, Edna Grünblatt, Marek Jarema, Yong-Ku Kim, Eduard Maron, Vasileios Masdrakis, Olya Mikova, David Nutt, Stefano Pallanti, Stefano Pini, Andreas Ströhle, Florence Thibaut, Matilde M Vaghi, Eunsoo Won, Dirk Wedekind, Adam Wichniak, Jade Woolley, Peter Zwanzger, Peter Riederer
OBJECTIVE: Biomarkers are defined as anatomical, biochemical or physiological traits that are specific to certain disorders or syndromes. The objective of this paper is to summarise the current knowledge of biomarkers for anxiety disorders, obsessive-compulsive disorder (OCD) and posttraumatic stress disorder (PTSD). METHODS: Findings in biomarker research were reviewed by a task force of international experts in the field, consisting of members of the World Federation of Societies for Biological Psychiatry Task Force on Biological Markers and of the European College of Neuropsychopharmacology Anxiety Disorders Research Network...
July 15, 2016: World Journal of Biological Psychiatry
Borwin Bandelow, David Baldwin, Marianna Abelli, Carlo Altamura, Bernardo Dell'Osso, Katharina Domschke, Naomi A Fineberg, Edna Grünblatt, Marek Jarema, Eduard Maron, David Nutt, Stefano Pini, Matilde M Vaghi, Adam Wichniak, Gwyneth Zai, Peter Riederer
OBJECTIVES: Biomarkers are defined as anatomical, biochemical or physiological traits that are specific to certain disorders or syndromes. The objective of this paper is to summarise the current knowledge of biomarkers for anxiety disorders, obsessive-compulsive disorder (OCD) and post-traumatic stress disorder (PTSD). METHODS: Findings in biomarker research were reviewed by a task force of international experts in the field, consisting of members of the World Federation of Societies for Biological Psychiatry Task Force on Biological Markers and of the European College of Neuropsychopharmacology Anxiety Disorders Research Network...
August 2016: World Journal of Biological Psychiatry
Annemiek Dols, Saskia van Liempt, Flora Gossink, Welmoed A Krudop, Sietske Sikkes, Yolande A L Pijnenburg, Max L Stek
OBJECTIVE: Early differentiation between psychiatric disorders and behavioral variant frontotemporal dementia (bvFTD) is of paramount importance in patients with the late-onset frontal lobe syndrome. As bvFTD in patients will deteriorate, psychiatric disorders are treatable. To date, misdiagnosis often occurs due to an overlap of symptoms and lack of specific biomarkers. The aim of our study was to investigate whether specific symptoms could separate bvFTD from psychiatric disorders. METHODS: In a naturalistic, prospective, multicenter study, 137 patients (aged 45-75 years, 72% male) with a late-onset frontal lobe syndrome were included based on their scores on the Frontal Behavioral Inventory (FBI) and the Stereotypy Rating Inventory (SRI) from April 2011 to June 2013...
July 5, 2016: Journal of Clinical Psychiatry
M O Trépanier, K E Hopperton, R Mizrahi, N Mechawar, R P Bazinet
Schizophrenia is a psychiatric disorder which has a lifetime prevalence of ~1%. Multiple candidate mechanisms have been proposed in the pathogenesis of schizophrenia. One such mechanism is the involvement of neuroinflammation. Clinical studies, including neuroimaging, peripheral biomarkers and randomized control trials, have suggested the presence of neuroinflammation in schizophrenia. Many studies have also measured markers of neuroinflammation in postmortem brain samples from schizophrenia patients. The objective of this study was to conduct a systematic search of the literature on neuroinflammation in postmortem brains of schizophrenia patients indexed in MEDLINE, Embase and PsycINFO...
August 2016: Molecular Psychiatry
Luca Muzio, Valentina Brambilla, Lorenza Calcaterra, Patrizia D'Adamo, Gianvito Martino, Francesco Benedetti
The search for biomarkers of antidepressant effects focused on pathways regulating synaptic plasticity, and on activated inflammatory markers. Repeated Sleep Deprivation (SD) provides a model treatment to reverse-translate antidepressant effects from in vivo clinical psychiatry to model organisms. We studied the effects of repeated SD alone (ASD) or combined with exercise on a slow spinning wheel (SSW), in 116 C57BL/6J male mice divided in three groups (ASD, SSW, untreated). Forced Swimming Test (FST) was used to detect antidepressant-like effects...
September 15, 2016: Behavioural Brain Research
M T Treadway, C V Leonard
A long-standing goal of psychopathology research is to develop objective markers of symptomatic states, yet progress has been far slower than expected. Although prior reviews have attributed this state of affairs to diagnostic heterogeneity, symptom comorbidity and phenotypic complexity, little attention has been paid to the implications of intra-individual symptom dynamics and inter-relatedness for biomarker study designs. In this critical review, we consider the impact of short-term symptom fluctuations on widely used study designs that regress the 'average level' of a given symptom against biological data collected at a single time point, and summarize findings from ambulatory assessment studies suggesting that such designs may be sub-optimal to detect symptom-substrate relationships...
September 2016: Molecular Psychiatry
C Bonvicini, S V Faraone, C Scassellati
The adult form of attention-deficit/hyperactivity disorder has a prevalence of up to 5% and is the most severe long-term outcome of this common disorder. Family studies in clinical samples as well as twin studies suggest a familial liability and consequently different genes were investigated in association studies. Pharmacotherapy with methylphenidate (MPH) seems to be the first-line treatment of choice in adults with attention-deficit hyperactive disorder (ADHD) and some studies were conducted on the genes influencing the response to this drug...
July 2016: Molecular Psychiatry
S Rangaraju, D F Levey, K Nho, N Jain, K D Andrews, H Le-Niculescu, D R Salomon, A J Saykin, M Petrascheck, A B Niculescu
Antidepressants have been shown to improve longevity in C. elegans. It is plausible that orthologs of genes involved in mood regulation and stress response are involved in such an effect. We sought to understand the underlying biology. First, we analyzed the transcriptome from worms treated with the antidepressant mianserin, previously identified in a large-scale unbiased drug screen as promoting increased lifespan in worms. We identified the most robust treatment-related changes in gene expression, and identified the corresponding human orthologs...
August 2016: Molecular Psychiatry
J R Swartz, A R Hariri, D E Williamson
Identifying biological mechanisms through which the experience of adversity emerges as individual risk for mental illness is an important step toward developing strategies for personalized treatment and, ultimately, prevention. Preclinical studies have identified epigenetic modification of gene expression as one such mechanism. Recent clinical studies have suggested that epigenetic modification, particularly methylation of gene regulatory regions, also acts to shape human brain function associated with risk for mental illness...
May 24, 2016: Molecular Psychiatry
T Wise, J Radua, E Via, N Cardoner, O Abe, T M Adams, F Amico, Y Cheng, J H Cole, C de Azevedo Marques Périco, D P Dickstein, T F D Farrow, T Frodl, G Wagner, I H Gotlib, O Gruber, B J Ham, D E Job, M J Kempton, M J Kim, P C M P Koolschijn, G S Malhi, D Mataix-Cols, A M McIntosh, A C Nugent, J T O'Brien, S Pezzoli, M L Phillips, P S Sachdev, G Salvadore, S Selvaraj, A C Stanfield, A J Thomas, M J van Tol, N J A van der Wee, D J Veltman, A H Young, C H Fu, A J Cleare, D Arnone
Finding robust brain substrates of mood disorders is an important target for research. The degree to which major depression (MDD) and bipolar disorder (BD) are associated with common and/or distinct patterns of volumetric changes is nevertheless unclear. Furthermore, the extant literature is heterogeneous with respect to the nature of these changes. We report a meta-analysis of voxel-based morphometry (VBM) studies in MDD and BD. We identified studies published up to January 2015 that compared grey matter in MDD (50 data sets including 4101 individuals) and BD (36 data sets including 2407 individuals) using whole-brain VBM...
May 24, 2016: Molecular Psychiatry
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"