Cerebrospinal fluid GABA concentration: Relationship with impulsivity and history of suicidal behavior, but not aggression, in human subjects

2009 ◽  
Vol 43 (4) ◽  
pp. 353-359 ◽  
Author(s):  
Royce Lee ◽  
Frederick Petty ◽  
Emil F. Coccaro
Keyword(s):  
Cerebrospinal Fluid ◽  
Suicidal Behavior ◽  
Human Subjects ◽  
Gaba Concentration ◽  
History Of

scholarly journals Elevated cerebrospinal fluid sodium in hypertensive human subjects with a family history of Alzheimer’s disease

2020 ◽  
Vol 52 (3) ◽  
pp. 133-142
Author(s):  
Lucas A. C. Souza ◽  
Fatima Trebak ◽  
Veena Kumar ◽  
Ryousuke Satou ◽  
Patrick G. Kehoe ◽  
...  
Keyword(s):  
Alzheimer’S Disease ◽  
Alzheimer's Disease ◽  
Cerebrospinal Fluid ◽  
Sodium Intake ◽  
Human Subjects ◽  
Sodium Concentration ◽  
Plasma Sodium ◽  
Chronic Hypertension ◽  
Plasma Sodium Concentration ◽  
History Of

High salt (sodium) intake leads to the development of hypertension despite the fact that plasma sodium concentration ([Na+]) is usually normal in hypertensive human patients. Increased cerebrospinal fluid (CSF) sodium contributes to elevated sympathetic activity and high blood pressure (BP) in rodent models of hypertension. However, whether there is an increased accumulation of sodium in the CSF of humans with chronic hypertension is not well defined. Here, we investigated CSF [Na+] from hypertensive and normotensive human subjects with family histories of Alzheimer’s disease in samples collected in a clinical trial, as spinal tap is not a routine clinical procedure for hypertensive patients. The [Na+] and osmolality in plasma and CSF were measured by flame photometry. Daytime ambulatory BP was monitored while individuals were awake. Participants were deidentified and data were analyzed in conjunction with a retrospective analysis of patient history and diagnosis. We found that CSF [Na+] was significantly higher in participants with high BP compared with normotensive participants; there was no difference in plasma [Na+], or plasma and CSF osmolality between groups. Subsequent multiple linear regression analyses controlling for age, sex, race, and body mass index revealed a significant positive correlation between CSF [Na+] and BP but showed no correlation between plasma [Na+] and BP. In sum, CSF [Na+] was higher in chronic hypertensive individuals and may play a key role in the pathogenesis of human hypertension. Collectively, our findings provide evidence for the clinical significance of CSF [Na+] in chronic hypertension in humans.

scholarly journals Cerebrospinal fluid 5-hydroxyindolacetic acid correlates directly with negative affective intensity, but not affective lability, in human subjects

2012 ◽  
Vol 16 (2) ◽  
pp. 261-269 ◽  
Author(s):  
Emil F. Coccaro ◽  
Anjiwan Boparai ◽  
Royce Lee
Keyword(s):  
Cerebrospinal Fluid ◽  
Life History ◽  
Mood Disorder ◽  
Human Subjects ◽  
Affective Instability ◽  
Component Traits ◽  
History Of ◽  
Personality Disordered ◽  
Affective Lability ◽  
Affective Intensity

Abstract Centrally acting monoamines have long been thought to be associated with component traits of behavior and emotion and are potential biological mediators of psychopathology. In this study we tested the hypothesis that centrally acting monoamines would be associated with measures of affective instability (i.e. affective intensity and affective lability) in healthy and personality disordered human subjects. In total, 57 adult subjects including 19 psychiatrically healthy volunteers and 38 personality disordered individuals were assessed for affective instability with the affective intensity measure (AIM) and the Affective Lability Scale (ALS). Samples of cerebrospinal fluid (CSF) were collected for assay of 5-hydroxyindoleacitic acid (5-HIAA), homovanillic acid (HVA) and 3-methoxy-4-hydroxy-phenylglycol (MHPG). CSF 5-HIAA concentration correlated directly with overall AIM score and, specifically, with the AIM Negative Intensity score, in all subjects and in personality disordered subjects. This result was not affected but the addition of aggression scores or life history of mood disorder to the model. Neither CSF HVA nor MHPG were found to uniquely correlate with either AIM or ALS measure. Higher Affective Intensity scores, Negative Intensity scores, specifically, are directly correlated with higher basal levels of CSF 5-HIAA. This relationship was independent of aggression, life history of mood disorder and general personality traits.

Relationships in Healthy Volunteers Between Concentrations of Monoamine Metabolites in Cerebrospinal Fluid and Family History of Psychiatric Morbidity

1980 ◽  
Vol 136 (4) ◽  
pp. 366-374 ◽  
Author(s):  
Göran Sedvall ◽  
Bengt Fyrö ◽  
Bo Gullberg ◽  
Henrik Nybäck ◽  
Frits-Axel Wiesel ◽  
...  
Keyword(s):  
Cerebrospinal Fluid ◽  
Family History ◽  
Depressive Disorders ◽  
Human Subjects ◽  
Psychiatric Morbidity ◽  
Mass Fragmentography ◽  
Healthy Human ◽  
Significance Level ◽  
History Of ◽  
Monoamine Metabolite

SummaryIn 60 physically and mentally healthy human subjects, lumbar cerebrospinal fluid was analysed by mass fragmentography for 5-HIAA, HVA and MOPEG. Individuals with a family history of psychiatric morbidity had significantly greater variation in monoamine metabolite concentrations than subjects without such a family history. In subjects with a family history of schizophrenic psychosis 5-HIAA and HVA concentrations were significantly higher than in subjects with depressive disorders within the family. For subjects with deviant 5-HIAA levels the probability of having a psychiatric family history was 2.7 times higher than in subjects with normal values. For HVA and MOPEG similar relationships, but of a lower significance level, were found. The results suggest that the cerebral monoaminergic transmitter amines play critical roles in the pathophysiology of psychotic and depressive disorders with a family disposition. They also indicate a value of monoamine metabolite determination in CSF for the prediction of family vulnerability for psychiatric morbidity in healthy subjects.

Suicidal Behavior in German Adolescents

2015 ◽  
Vol 43 (1) ◽  
pp. 39-45 ◽  
Author(s):  
Joana Straub ◽  
Ferdinand Keller ◽  
Nina Sproeber ◽  
Michael G. Koelch ◽  
Paul L. Plener
Keyword(s):  
Suicidal Behavior ◽  
Suicide Attempts ◽  
Depression Scale ◽  
Epidemiological Studies ◽  
Present Sample ◽  
Manic Symptoms ◽  
Symptoms Of Depression ◽  
Adolescent Sample ◽  
History Of ◽  
Sum Scores

Objective: Research in adults has identified an association between bipolar disorder and suicidal behavior. This relationship, however, has been insufficiently investigated in adolescents to date. Methods: 1,117 adolescents from 13 German schools (mean age = 14.83, SD = .63; 52.7% females) completed an extended German version of the Center for Epidemiological Studies Depression Scale (CES-D), which assesses depressive and manic symptoms during the last week, as well as the Self-Harm Behavior Questionnaire (SHBQ) for the assessment of lifetime suicidal behavior. Results: In the present sample 39.4% of the girls and 23.1% of the boys reported lifetime suicidal thoughts and 7.1% of the girls as well as 3.9% of the boys a lifetime history of suicide attempts. 18.7% of the adolescent sample revealed elevated symptoms of depression and 9% elevated levels of mania symptoms. Elevated sum scores of depression and mania were associated with a higher number of suicidal ideations and suicide attempts. A block-wise regression analysis revealed that sum scores of depression and mania predicted suicidal ideations best. Concerning suicide attempts, the best predictors were age as well as depression and mania sum scores. Conclusions: Suicidal behavior was reported more often when adolescents demonstrate symptoms of mania as well as symptoms of depression than when they demonstrate only depressive symptoms. The presence of bipolar symptoms in adolescents should alert clinicians to the heightened possibility of suicidal behavior.

Protective Factors and Suicidality in Members of Arab Kindred

Crisis ◽  
2012 ◽  
Vol 33 (2) ◽  
pp. 80-86 ◽  
Author(s):  
Sami Hamdan ◽  
Nadine Melhem ◽  
Israel Orbach ◽  
Ilana Farbstein ◽  
Mohammad El-Haib ◽  
...  
Keyword(s):  
Risk Factors ◽  
Protective Factors ◽  
Suicidal Behavior ◽  
Composite International Diagnostic Interview ◽  
Diagnostic Interview ◽  
Suicidal Risk ◽  
Arab Population ◽  
Psychiatric Interview ◽  
History Of

Background: Relatively little is known about the role of protective factors in an Arab population in the presence of suicidal risk factors. Aims: To examine the role of protective factors in a subsample of in large Arab Kindred participants in the presence of suicidal risk factors. Methods: We assessed protective and risk factors in a sample of 64 participants (16 suicidal and 48 nonsuicidal) between 15 and 55 years of age, using a comprehensive structured psychiatric interview, the Composite International Diagnostic Interview (CIDI), self-reported depression, anxiety, hopelessness, impulsivity, hostility, and suicidal behavior in first-degree and second-relatives. We also used the Religiosity Questionnaire and suicide attitude (SUIATT) and multidimensional perceived support scale. Results: Suicidal as opposed to nonsuicidal participants were more likely to have a lifetime history of major depressive disorder (MDD) (68.8% vs. 22.9% χ2 = 11.17, p = .001), an anxiety disorder (87.5% vs. 22.9, χ2 = 21.02, p < .001), or posttraumatic stress disorder (PTSD) (25% vs. 0.0%, Fisher’s, p = .003). Individuals who are otherwise at high risk for suicidality have a much lower risk when they experience higher perceived social support (3.31 ± 1.36 vs. 4.96 ± 1.40, t = 4.10, df = 62, p < .001), and they have the view that suicide is somehow unacceptable (1.83 ± .10 vs. 1.89 ± .07, t = 2.76, df = 60, p = .008). Conclusions: Taken together with other studies, these data suggest that the augmentation of protective factors could play a very important role in the prevention of incidental and recurrent suicidal behavior in Arab populations, where suicidal behavior in increasing rapidly.

Stress, Cortisol and Suicide Risk

2019 ◽  
Author(s):  
Daryl Brian O'Connor
Keyword(s):  
Risk Factors ◽  
Suicidal Behavior ◽  
Suicide Risk ◽  
Stressful Events ◽  
Additional Risk ◽  
Global Health Issue ◽  
History Of ◽  
Hpa Axis Activity ◽  
The Impact

Suicide is a global health issue accounting for at least 800,000 deaths per annum. Numerous models have been proposed that differ in their emphasis on the role of psychological, social, psychiatric and neurobiological factors in explaining suicide risk. Central to many models is a stress-diathesis component which states that suicidal behavior is the result of an interaction between acutely stressful events and a susceptibility to suicidal behavior (a diathesis). This article presents an overview of studies that demonstrate that stress and dysregulated hypothalamic-pituitary-adrenal (HPA) axis activity, as measured by cortisol levels, are important additional risk factors for suicide. Evidence for other putative stress-related suicide risk factors including childhood trauma, impaired executive function, impulsivity and disrupted sleep are considered together with the impact of family history of suicide, perinatal and epigenetic influences on suicide risk.

scholarly journals The Relationships between HIV-1 Infection, History of Methamphetamine Use Disorder, and Soluble Biomarkers in Blood and Cerebrospinal Fluid

Viruses ◽  
2021 ◽  
Vol 13 (7) ◽  
pp. 1287
Author(s):  
T. Walter ◽  
Jennifer Iudicello ◽  
Debra Cookson ◽  
Donald Franklin ◽  
Bin Tang ◽  
...  
Keyword(s):  
Cerebrospinal Fluid ◽  
Immune System ◽  
Public Health Problem ◽  
Control Group ◽  
Csf Biomarkers ◽  
Immune System Dysfunction ◽  
Immune Biomarkers ◽  
Plasma Factor ◽  
History Of ◽  
Hiv 1

Methamphetamine (METH) use disorder is highly prevalent among people with HIV (PWH) and is a significant public health problem. HIV and METH use are each associated with immune system dysfunction; however, the combined effects on the immune system are poorly understood. This cross-sectional project measured soluble immune biomarkers in plasma and cerebrospinal fluid (CSF) collected from a control group, people with a history of a METH use disorder (METH+), PWH with no history of METH use disorder (HIV+), and PWH with a history of METH use disorder (HIV+/METH+). HIV, METH, and immune dysfunction can also be associated with affective and cognitive deficits, so we characterized mood and cognition in our participants. Two factor analyses were performed for the plasma and CSF biomarkers. Plasma IL-8, Ccl2, VEGF, and 8-isoprostane loaded onto one factor that was highest in the HIV+/METH+ group (p < 0.047) reflecting worse inflammation, vascular injury, and oxidative stress. This plasma factor was also negatively correlated with delayed recall (R = −0.49, p = 0.010), which was worst in the HIV+/METH+ group (p = 0.030 compared to the control group). Overall, these data implicate that combined HIV-1 infection and METH use may exacerbate inflammation, leading to worse cognition.

Insomnia Symptom Severity is Associated with Increased Suicidality and Death by Suicide in a Sample of Patients with Psychiatric Disorders

SLEEP ◽  
2021 ◽  
Author(s):  
Zach Simmons ◽  
Gary Burlingame ◽  
Juergen Korbanka ◽  
Kevin Eastman ◽  
Douglas Thomas ◽  
...  
Keyword(s):  
Psychiatric Disorders ◽  
Suicidal Behavior ◽  
Symptom Severity ◽  
Suicide Attempts ◽  
Sleep Problems ◽  
Manner Of Death ◽  
Insomnia Symptom ◽  
History Of ◽  
Depressive Personality ◽  
Insomnia Symptoms

Abstract Study Objectives Insomnia is a risk factor for suicidal behavior including attempts and death by suicide. We investigated whether insomnia symptom severity was associated with suicidality and death by suicide in patients with psychiatric disorders. Methods The sample included 180 deceased patients with psychiatric disorders seen at Weber Human Services between 2008 and 2018 who completed the Outpatient Questionnaire-45.2 (OQ) prior to death. Insomnia symptom severity was assessed using item 41 from the OQ. Manner of death was determined by death records and autopsy reports. History of suicidality was determined through electronic medical records. Cases were grouped into 4 lifetime categories: non-suicidal (n=30), suicidal ideation (n=36), suicide attempt (n=95), and death by suicide (n=19). Demographic, medical, and psychiatric features of each group were compared using linear regression. Logistic regression was used to determine whether insomnia symptom severity was associated with lifetime suicidality severity grouping, adjusting for psychiatric disorders commonly linked to suicidality. Results Lifetime suicidality was associated with sleep problems, fatigue, headaches, and psychiatric disorders (i.e., depressive, personality, and trauma-related disorders). Referenced to the non-suicidal group, greater insomnia symptom severity was significantly associated with suicide attempts and death by suicide, with odds ratios (OR) of OR=2.67, p=0.011, and OR=5.53, p=0.002, respectively, even after adjusting important psychiatric diagnoses. Conclusions Results suggest that insomnia symptom severity endorsed during a clinical visit is associated with heightened suicidality, especially suicidal behavior. The presence of insomnia symptoms in patients with psychiatric disorders may indicate risk for suicide and is a target for suicide prevention.

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