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https://www.readbyqxmd.com/read/28692478/diagnosis-of-vitality-in-skin-wounds-in-the-ligature-marks-resulting-from-suicide-hanging
#1
Isabel Legaz Pérez, Maria Falcón, M Gimenez, F Martínez Diaz, M D Pérez-Cárceles, E Osuna, D Nuno-Vieira, A Luna
Ascertaining the vital origin of skin wounds is one of the most challenging problems in forensic pathology. The forensic literature describes biomarkers and methods for differentiating vital and postmortem wounds, although no clear conclusions have been reached. The aim of this study was to characterize human vital wounds by analyzing the concentrations of metallic ions and the expression of P-selectin and cathepsin D in skin wounds in the ligature marks in a cohort of suicidal hangings for which vitality was previously demonstrated...
July 7, 2017: American Journal of Forensic Medicine and Pathology
https://www.readbyqxmd.com/read/28682534/objectively-assessed-sleep-variability-as-an-acute-warning-sign-of-suicidal-ideation-in-a-longitudinal-evaluation-of-young-adults-at-high-suicide-risk
#2
Rebecca A Bernert, Melanie A Hom, Naomi G Iwata, Thomas E Joiner
OBJECTIVE: Young adults attempt suicide at disproportionately high rates relative to other groups and demonstrate high rates of sleep disturbance. No study has yet prospectively evaluated disturbed sleep as an acute indicator of risk using an objective index of sleep. We investigated objective and subjective parameters of disturbed sleep as a warning sign of suicidal ideation among young adults over an acute period. METHODS: A longitudinal study across a 21-day observation period and 3 time points...
June 2017: Journal of Clinical Psychiatry
https://www.readbyqxmd.com/read/28682230/-genetics-and-epigenetics-of-suicidal-behaviors
#3
Emilie Olié, Philippe Courtet
With more than 10 000 deaths each year in France, suicide is a major public health problem. Despite many known risk factors, suicide prediction remains extremely difficult in daily clinical practice. The identification of biomarkers, including genetic and epigenetic factors, is needed in suicidology in order to better understand pathophysiology of such behaviors and to improve the screening of individuals at high suicidal risk. Numerous studies have reported candidate genes involved in serotonergic system, HPA axis and neurotrophic system...
2017: Biologie Aujourd'hui
https://www.readbyqxmd.com/read/28668716/replication-of-rs300774-a-genetic-biomarker-near-acp1-associated-with-suicide-attempts-in-patients-with-schizophrenia-relation-to-brain-cholesterol-biosynthesis
#4
Jiang Li, Akane Yoshikawa, Herbert Y Meltzer
The aim of this study was to determine if three biomarkers for suicide attempts previously identified and replicated in a genome-wide association (GWAS) study of bipolar disorder (BD) suicide attempters also predicted suicide attempts in patients prospectively diagnosed with schizophrenia (SCZ) or schizoaffective disorder (SAD). 162 genetically-verified Caucasian patients with SCZ or SAD were phenotyped for presence (45.7%) or absence of a lifetime suicide attempt. Three single nucleotide polymorphisms (SNPs) were genotyped or partially imputed from a GWAS dataset...
June 16, 2017: Journal of Psychiatric Research
https://www.readbyqxmd.com/read/28645967/the-bipolar-illness-onset-study-research-protocol-for-the-bio-cohort-study
#5
Lars Vedel Kessing, Klaus Munkholm, Maria Faurholt-Jepsen, Kamilla Woznica Miskowiak, Lars Bo Nielsen, Ruth Frikke-Schmidt, Claus Ekstrøm, Ole Winther, Bente Klarlund Pedersen, Henrik Enghusen Poulsen, Roger S McIntyre, Flavio Kapczinski, Wagner F Gattaz, Jakob Bardram, Mads Frost, Oscar Mayora, Gitte Moos Knudsen, Mary Phillips, Maj Vinberg
INTRODUCTION: Bipolar disorder is an often disabling mental illness with a lifetime prevalence of 1%-2%, a high risk of recurrence of manic and depressive episodes, a lifelong elevated risk of suicide and a substantial heritability. The course of illness is frequently characterised by progressive shortening of interepisode intervals with each recurrence and increasing cognitive dysfunction in a subset of individuals with this condition. Clinically, diagnostic boundaries between bipolar disorder and other psychiatric disorders such as unipolar depression are unclear although pharmacological and psychological treatment strategies differ substantially...
June 23, 2017: BMJ Open
https://www.readbyqxmd.com/read/28638711/decrease-in-brain-derived-neurotrophic-factor-at-plasma-level-but-not-in-serum-concentrations-in-suicide-behavior-a%C3%A2-systematic-review-and-meta-analysis
#6
Marisol Salas-Magaña, Carlos A Tovilla-Zárate, Thelma B González-Castro, Isela E Juárez-Rojop, María L López-Narváez, José M Rodríguez-Pérez, Julián Ramírez Bello
INTRODUCTION: Suicide is known as a major health concern worldwide. There is evidence for the role of brain-derived neurotrophic factor (BDNF) in suicide behavior. Therefore, this factor has been proposed as a biomarker for suicide behavior. Clinical studies have measured BDNF concentrations at central and peripheral levels. As a consequence, the aim of this study was to assess BDNF levels in blood plasma and serum to see whether there is a difference in concentrations in patients with suicide behavior when compared to those in controls, using a meta-analysis approach...
June 2017: Brain and Behavior
https://www.readbyqxmd.com/read/28636217/research-on-potential-biomarker-correlates-for-suicidal-behavior-a-review
#7
REVIEW
Sangha Kim, Kyoung-Uk Lee
Suicide is a world health priority. Studies over the last few decades have revealed the complexity underlying the neurobiological mechanisms of suicide. Researchers have found dysregulations in the serotonergic system, the stress system, neural plasticity, lipid metabolism, and cell signaling pathways in relation to suicidal behaviors. These findings have provided more insight into the final path leading to suicide, at which medical intervention should be applied to prevent the action. However, because these molecular mechanisms have been implicated in both depression and suicide, the specificity of the mechanisms has been obscured...
June 21, 2017: Asia-Pacific Psychiatry: Official Journal of the Pacific Rim College of Psychiatrists
https://www.readbyqxmd.com/read/28627446/lipid-profile-and-suicide-attempt-in-bipolar-disorder-a-meta-analysis-of-published-and-unpublished-data
#8
Francesco Bartoli, Carmen Di Brita, Cristina Crocamo, Massimo Clerici, Giuseppe Carrà
Evidence suggests an association between low lipid levels and suicidality in subjects with severe mental disorders. This is the first systematic review and meta-analysis aimed at exploring differences in lipid profile between suicide attempters and non-attempters with bipolar disorder. We included observational studies providing comparative cross-sectional data on total cholesterol, LDL-cholesterol and triglycerides levels. We searched main Electronic Databases, identifying 11 studies that met our inclusion criteria, including also unpublished data...
June 13, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28574009/potential-biomarkers-for-bipolar-disorder-where-do-we-stand
#9
REVIEW
Rajesh Sagar, Raman Deep Pattanayak
Bipolar disorder (BD) is a severe, recurrent mood disorder, associated with a significant morbidity and mortality, with high rates of suicides and medical comorbidities. There is a high risk of mood disorders among the first-degree relatives of patients with BD. In the current clinical practice, the diagnosis of BD is made by history taking, interview and behavioural observations, thereby lacking an objective, biological validation. This approach may result in underdiagnosis, misdiagnosis and eventually poorer outcomes...
January 2017: Indian Journal of Medical Research
https://www.readbyqxmd.com/read/28503110/pediatric-mania-the-controversy-between-euphoria-and-irritability
#10
Giulia Serra, Mai Uchida, Claudia Battaglia, Maria Pia Casini, Lavinia De Chiara, Joseph Biederman, Stefano Vicari, Janet Wozniak
Pediatric Bipolar Disorder (BD) is a highly morbid pediatric psychiatric disease, consistently associated with family psychiatric history of mood disorders and associated with high levels of morbidity and disability and with a great risk of suicide. While there is a general consensus on the symptomatology of depression in childhood, the phenomenology of pediatric mania is still highly debated and the course and long-term outcome of pediatric BD still need to be clarified. We reviewed the available studies on the phenomenology of pediatric mania with the aim of summarizing the prevalence, demographics, clinical correlates and course of these two types of pediatric mania...
April 2017: Current Neuropharmacology
https://www.readbyqxmd.com/read/28483660/markers-of-neuroinflammation-and-neuronal-injury-in-bipolar-disorder-relation-to-prospective-clinical-outcomes
#11
Anniella Isgren, Carl Sellgren, Carl-Johan Ekman, Jessica Holmén-Larsson, Kaj Blennow, Henrik Zetterberg, Joel Jakobsson, Mikael Landén
BACKGROUND: Neuroimmune mechanisms have been linked to the pathophysiology of bipolar disorder based on studies of biomarkers in plasma, cerebrospinal fluid (CSF), and postmortem brain tissue. There are, however, no longitudinal studies investigating if CSF markers of neuroinflammation and neuronal injury predict clinical outcomes in patients with bipolar disorder. We have in previous studies found higher CSF concentrations of interleukin-8 (IL-8), monocyte chemoattractant protein 1 (MCP-1/CCL-2), chitinase-3-like protein 1 (CHI3L1/YKL-40), and neurofilament light chain (NF-L) in euthymic patients with bipolar disorder compared with controls...
May 5, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/28470485/biomarkers-of-suicide-attempt-behavior-towards-a-biological-model-of-risk
#12
REVIEW
Katherin Sudol, J John Mann
PURPOSE OF REVIEW: The rising suicide rate in the USA will not be reversed without improved risk assessment and prevention practices. To date, the best method for clinicians to assess a patient's risk for suicide is screening for past suicide attempts in the patient and their family. However, neuroimaging, genomic, and biochemical studies have generated a body of findings that allow description of an initial heuristic biological model for suicidal behavior that may have predictive value...
June 2017: Current Psychiatry Reports
https://www.readbyqxmd.com/read/28462742/suicide-and-assisted-dying-in-dementia-what-we-know-and-what-we-need-to-know-a-narrative-literature-review
#13
J Diehl-Schmid, R Jox, S Gauthier, S Belleville, E Racine, C Schüle, G Turecki, S Richard-Devantoy
BACKGROUND: Evidence-based data on prevalence and risk factors of suicidal intentions and behavior in dementia are as scarce as the data on assisted dying. The present literature review aimed on summarizing the current knowledge and provides a critical discussion of the results. METHODS: A systematic narrative literature review was performed using Medline, Cochrane Library, EMBASE, PSYNDEX, PSYCINFO, Sowiport, and Social Sciences Citation Index literature. RESULTS: Dementia as a whole does not appear to be a risk factor for suicide completion...
August 2017: International Psychogeriatrics
https://www.readbyqxmd.com/read/28452409/ketamine-versus-midazolam-in-bipolar-depression-with-suicidal-thoughts-a-pilot-midazolam-controlled-randomized-clinical-trial
#14
Michael F Grunebaum, Steven P Ellis, John G Keilp, Vivek K Moitra, Thomas B Cooper, Julia E Marver, Ainsley K Burke, Matthew S Milak, M Elizabeth Sublette, Maria A Oquendo, J John Mann
OBJECTIVES: To evaluate feasibility and effects of a sub-anesthetic infusion dose of ketamine versus midazolam on suicidal ideation in bipolar depression. Neurocognitive, blood and saliva biomarkers were explored. METHODS: Sixteen participants with bipolar depression and a Scale for Suicidal Ideation (SSI) score of ≥4 were randomized to ketamine (0.5 mg/kg) or midazolam (0.02 mg/kg). Current pharmacotherapy was maintained excluding benzodiazepines within 24 hours...
May 2017: Bipolar Disorders
https://www.readbyqxmd.com/read/28431193/evaluation-of-cholesterol-as-a-biomarker-for-suicidality-in-a-veteran-sample
#15
Chuck Reuter, Barbara Caldwell, Heather Basehore
A reduction in total cholesterol may alter the microviscosity of the brain-cell-membrane, reducing serotonin receptor exposure. The resulting imbalance between serotonin and dopamine may lead to an increased risk for suicidality. The objective of this research was to evaluate total cholesterol as a biological marker for suicidality in a sample of US military veterans. The study population consisted of veterans who received care at the Coatesville Veterans Affairs Medical Center (VAMC) and were included in the Suicide Prevention Coordinator's database for having suicidal ideation with evidence of escalating intent, a documented suicide attempt, or committed suicide between 2009 and 2015...
August 2017: Research in Nursing & Health
https://www.readbyqxmd.com/read/28230051/cellular-senescence-mediates-fibrotic-pulmonary-disease
#16
Marissa J Schafer, Thomas A White, Koji Iijima, Andrew J Haak, Giovanni Ligresti, Elizabeth J Atkinson, Ann L Oberg, Jodie Birch, Hanna Salmonowicz, Yi Zhu, Daniel L Mazula, Robert W Brooks, Heike Fuhrmann-Stroissnigg, Tamar Pirtskhalava, Y S Prakash, Tamara Tchkonia, Paul D Robbins, Marie Christine Aubry, João F Passos, James L Kirkland, Daniel J Tschumperlin, Hirohito Kita, Nathan K LeBrasseur
Idiopathic pulmonary fibrosis (IPF) is a fatal disease characterized by interstitial remodelling, leading to compromised lung function. Cellular senescence markers are detectable within IPF lung tissue and senescent cell deletion rejuvenates pulmonary health in aged mice. Whether and how senescent cells regulate IPF or if their removal may be an efficacious intervention strategy is unknown. Here we demonstrate elevated abundance of senescence biomarkers in IPF lung, with p16 expression increasing with disease severity...
February 23, 2017: Nature Communications
https://www.readbyqxmd.com/read/28201930/electroencephalographic-correlates-of-suicidal-ideation-in-the-theta-band
#17
Sang Min Lee, Kuk-In Jang, Jeong-Ho Chae
Previous studies have indicated that the abnormalities of brain activity are associated with suicidal behavior. However, few studies have explored neurophysiologic biomarkers of suicidal ideation (SI) in healthy subjects. Here, we studied alterations of theta quantitative EEG (QEEG) in frontal regions associated with SI in young healthy subjects. Resting QEEG data were recorded from 90 young healthy subjects. The subjects were divided into two group based on Scale for Suicidal Ideation (SSI) scores: a high SSI group (n = 33) and a low SSI group (n = 57)...
February 1, 2017: Clinical EEG and Neuroscience: Official Journal of the EEG and Clinical Neuroscience Society (ENCS)
https://www.readbyqxmd.com/read/28188894/emerging-rna-editing-biomarkers-will-foster-drug-development
#18
REVIEW
Siem van der Laan, Nicolas Salvetat, Dinah Weissmann, Franck Molina
Unanticipated adverse drug reactions (ADRs) on the central nervous system are a major cause of clinical attrition and market withdrawal. Current practices for their prospective assessment still lean on extensive analysis of rodent behaviour despite their highly controversial predictive value. Human-derived in vitro models that objectively quantify mechanism-related biomarkers can greatly contribute to better ADR prediction at early developmental stages. Adenosine-to-inosine RNA editing constitutes a physiological cellular process that translates environmental cues by regulating protein function at the synaptic level in health and disease...
February 7, 2017: Drug Discovery Today
https://www.readbyqxmd.com/read/28183031/threat-related-amygdala-activity-is-associated-with-peripheral-crp-concentrations-in-men-but-not-women
#19
Johnna R Swartz, Aric A Prather, Ahmad R Hariri
Increased levels of peripheral inflammatory markers, including C-Reactive Protein (CRP), are associated with increased risk for depression, anxiety, and suicidality. The brain mechanisms that may underlie the association between peripheral inflammation and internalizing problems remain to be determined. The present study examines associations between peripheral CRP concentrations and threat-related amygdala activity, a neural biomarker of depression and anxiety risk, in a sample of 172 young adult undergraduate students...
April 2017: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/28135675/blunted-hpa-axis-activity-prior-to-suicide-attempt-and-increased-inflammation-in-attempters
#20
Nadine M Melhem, Sara Munroe, Anna Marsland, Katarina Gray, David Brent, Giovanna Porta, Antoine Douaihy, Mark L Laudenslager, Frank DePietro, Rasim Diler, Henry Driscoll, Priya Gopalan
BACKGROUND: Hypothalamic-Pituitary-Adrenal (HPA) axis dysregulation is associated with increased risk for suicidal behavior. However, it is not clear whether such dysregulation exists prior to or is a consequence of attempt. Studies also show an activation of inflammatory responses in suicidal behavior but often combine attempters with those with ideation. METHODS: The sample consisted of psychiatric inpatients, aged 15-30 years, admitted for suicide attempt (SA, n=38), inpatients admitted for suicidal ideation with no prior history of attempts (SI, n=40), and healthy controls (n=37)...
March 2017: Psychoneuroendocrinology
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