The relationship between cognitive control and posttraumatic stress symptoms

Background and objectivesRecently researchers have theorized that individual differences in cognitive control (i.e., the ability to complete goal-directed behavior by actively maintaining information while inhibiting irrelevant information) may elucidate processes involved in disorders characterized by intrusive thoughts and memories. By this account, the relationship between cognitive control and emotional disorders would be specific to symptoms associated with intrusive cognitions, such as re-experiencing symptoms of posttraumatic stress disorder (PTSD).MethodsIn the present study, 77 undergraduate participants with a self-reported history of trauma exposure were administered assessments of cognitive control (working memory capacity; WMC), PTSD symptoms, trait anxiety, and depression. PTSD symptoms from each of the three symptom clusters (re-experiencing, avoidance, and hyperarousal) were predicted from trait anxiety, depression, and WMC performance scores using separate regression models.ResultsAfter controlling for trait anxiety and depression, there was a negative, statistically significant relationship between cognitive control and re-experiencing symptoms but not avoidance or hyperarousal symptoms.LimitationsThe study was completed cross-sectionally and did not include a diagnostic assessment of PTSD.ConclusionsFindings add to extant literature suggesting a relationship between cognitive control and intrusive cognitions. Moreover, the present study expands the current literature by demonstrating the specificity of this relationship within individuals with varying degrees of PTSD symptom severity.     

Behavioral inhibition in childhood predicts smaller hippocampal volume in adolescent offspring of parents with panic disorder

Behavioral inhibition (BI) is a genetically influenced behavioral profile seen in 15–20% of 2-year-old children. Children with BI are timid with people, objects and situations that are novel or unfamiliar, and are more reactive physiologically to these challenges as evidenced by higher heart rate, pupillary dilation, vocal cord tension and higher levels of cortisol. BI predisposes to the later development of anxiety, depression and substance abuse. Reduced hippocampal volumes have been observed in anxiety disorders, depression and posttraumatic stress disorder. Animal models have demonstrated that chronic stress can damage the hippocampal formation and implicated cortisol in these effects. We, therefore, hypothesized that the hippocampi of late adolescents who had been behaviorally inhibited as children would be smaller compared with those who had not been inhibited. Hippocampal volume was measured with high-resolution structural magnetic resonance imaging in 43 females and 40 males at 17 years of age who were determined to be BI+ or BI− based on behaviors observed in the laboratory as young children. BI in childhood predicted reduced hippocampal volumes in the adolescents who were offspring of parents with panic disorder, or panic disorder with comorbid major depression. We discuss genetic and environmental factors emanating from both child and parent that may explain these findings. To the best of our knowledge, this is the first study to demonstrate a relationship between the most extensively studied form of temperamentally based human trait anxiety, BI, and hippocampal structure. The reduction in hippocampal volume, as reported by us, suggests a role for the hippocampus in human trait anxiety and anxiety disorder that warrants further investigation.     

Anxiety disorders and CRP in a population cohort study with 54,326 participants: The LifeLines study

Objectives: Growing evidence indicates that inflammatory processes may play a role in the pathogenesis of anxiety disorders. Nevertheless, much remains to be learned about the involvement of inflammation, including C-reactive protein (CRP), in specific anxiety disorders. This study examines the relation between anxiety disorders and CRP.

Methods: Associations of serum CRP with anxiety disorders were determined in a large population study (n?=?54,326 participants, mean age?=?47 years; 59% female), the LifeLines cohort. Depressive and anxiety disorders (generalized anxiety disorder, social anxiety phobia, panic disorder with or without agoraphobia and agoraphobia without panic disorder) were assessed using the Mini-International Neuropsychiatric Interview.

Results: Anxiety disorders, with the exception of social anxiety disorder, were significantly associated with increased CRP. After adjusting for demographics, life style factors, health factors, medication use, depression, and psychological stressors, CRP remained significantly associated with panic disorder with agoraphobia (β?=?0.01, P?=?.013). Moreover, CRP levels were significantly higher in people with panic disorder with agoraphobia compared to other anxiety disorders, independent of all covariates (F?=?3.00, df?=?4, P?=?.021).

Conclusions: Panic disorder with agoraphobia is associated with increased CRP, although the effect size of this association is small. This indicates that neuroinflammatory mechanisms may play a potential role in its pathophysiology.     

Association Between Olfactory Performance and Affective Symptoms in Children

Introduction

Correlations between olfactory performance and particular personality traits (e.g., disgust proneness), as well as symptoms of specific mental disorders (e.g., depression) have been found in numerous studies with adults. The present questionnaire study examined whether similar associations already exist in childhood.

Method

The olfactory discrimination ability of 66 children (32 boys and 34 girls aged between 7 and 11 years) was tested. In addition, the children filled out screening questionnaires to assess the severity of symptoms related to depression, various anxiety disorders (e.g., panic disorder, social anxiety disorder), and disgust proneness. A multiple regression analysis was calculated with olfactory performance as criterion variable and questionnaire scores as predictor variables.

Results

The results showed that depression and disgust proneness were negatively associated with olfactory discrimination ability. Moreover, high levels of social anxiety and low levels of panic symptoms were found to be positive predictors of olfactory performance.

Conclusion

This investigation identified specific associations between olfactory performance and affective symptoms in children.

Implications

Future tests with pediatric samples (children with anxiety disorders, depression) are recommended.

     

Peri-sleep-onset cortisol levels in children and adolescents with affective disorders.

BACKGROUND: Changes in the hypothalamic-pituitary-adrenal (HPA) axis, as evidenced by patterns of cortisol secretion, have been of interest in understanding depression and anxiety disorders across the life span. Previous studies of pediatric depression have pointed to the period around sleep onset as a key time point for observing alterations in cortisol secretion associated with affective disorders. Evidence also indicates that pubertal development may influence the expression of HPA dysregulation. We hypothesized that adolescents with depression and youth with anxiety disorders exhibit elevated peri-sleep-onset cortisol. METHODS: Plasma cortisol was sampled every 20 min around sleep onset from children and adolescents with major depressive disorder (n = 116), anxiety disorders (n = 32), or no history of psychiatric disorder (control; n = 76). Sleep onset was determined by polysomnography. Classification of participants as children or adolescents was based on Tanner staging of pubertal maturation. RESULTS: Children with anxiety disorders had higher peri-sleep-onset cortisol than children with depression or control children. Adolescents with depression had marginally higher peri-sleep-onset cortisol than control adolescents and significantly higher peri-sleep-onset cortisol than children with depression. CONCLUSIONS: Depression and anxiety are associated with altered cortisol secretion around sleep onset, and these changes appear to be influenced by pubertal maturation.     

Alexithymia in adolescents with borderline personality disorder

ObjectiveThe aim of this study was to explore the relationship between alexithymia and borderline personality disorder (BPD) in adolescents.MethodsThe study investigated a sample of 59 consulting or inpatient adolescents with a well-established diagnosis of BPD (SIDP-IV) and a control sample of healthy adolescents individually matched by gender, age and socio-economic status. Alexithymia, depression and trait-anxiety were rated using the Twenty-item Toronto Alexithymia Scale (TAS-20), the Beck Depression Inventory (BDI-II) and the trait-anxiety subscale from the State-Trait Anxiety Inventory (STAI-T), respectively. A confirmatory factorial analysis (CFA) was performed to test the fit of the three-factor structure of the TAS-20 in the adolescent sample (N = 140). BPD and control groups were compared on alexithymic scores using ANCOVA analyses controlling for the potential confounding effects of depression and anxiety.ResultsThe ratio of the chi-square to its degrees of freedom, the goodness-of-fit index, the adjusted goodness-of-fit index and Steiger's root-mean-square error of approximation had satisfactory values of 1.54; 0.87; 0.83 and 0.058, respectively. The two ANCOVA demonstrated no significant difference for TAS-20 scores. BPD subjects were more alexithymic than healthy subjects but this difference was mainly explained by the levels of depression or anxiety.LimitationsSince BPD subjects have high comorbidity with depression or anxiety, longitudinal studies examining the absolute and relative stability of TAS-20 scores are necessary to determine whether alexithymia constitutes a state or a trait in BPD.ConclusionsBPD adolescents are characterized by alexithymia, probably of a secondary or state-dependent nature.     

Exploring the association between depression,suicidality and serum neurotrophin levels in adolescents

Abstract

Objective: The aim of this study was to identify potential differences in serum brain-derived neurotrophic factor (BDNF), glial-derived neurotrophic factor (GDNF), nerve growth factor (NGF) and neurotrophin-3 (NTF3) levels in adolescents with major depressive disorder (MDD) compared to healthy controls. The possible relationship between serum neurotrophin levels and suicidality in adolescents with MDD was also addressed.

Methods: A total of 70 treatment-free adolescents with MDD and 40 healthy controls aged 11 to 19?years were enrolled. The severity of suicidality was determined using the Columbia-Suicide Severity Rating Scale, and the severity of depression and anxiety symptoms were evaluated by self-report inventories. Serum levels of neurotrophins were measured using an enzyme-linked immunosorbent assay.

Results: The mean serum BDNF levels were significantly higher in adolescents with MDD than in control subjects; no significant difference was found between the groups for serum GDNF, NGF and NTF3 levels. No correlations were found between the levels of serum neurotrophins and the severity of depression or suicidality.

Conclusions: The study results suggest that elevated serum BDNF levels may be related to MDD in adolescents. However, our findings did not support a role for neurotrophins in suicidality.

• Key points

• Serum BDNF levels were higher in adolescents with MDD than in controls.

• No significant alterations of serum levels of GDNF, NGF and NTF3 were evident in adolescents with MDD.

• Neurotrophin levels were not associated with suicidal ideation and behaviours.

     

Anxiety and depression in adolescents with ADHD and autism spectrum disorders; correlation between parent- and self-reports and with attention and adaptive functioning

Background: Adolescents with attention-deficit/hyperactive disorder (ADHD) or autism spectrum disorder (ASD) are at high risk of anxiety and depression. This is important to identify in the clinical assessment to understand its impact.

Aims: The aim of this study is to investigate the correlation between parent- and self-reports of anxiety and depression in adolescents with ADHD or ASD, as well as the correlation with adaptive functioning and performance on an attention test.

Method: A total of 65 adolescents with an ADHD diagnosis (n?=?24) or an ASD diagnosis (n?=?41) filled out Beck Youth Inventories of Emotional and Social Impairment (BYI) to assess depression and anxiety and completed a Continuous Performance Test (QbTest) measuring ADHD symptoms. Parents of the participants completed the internalizing domain in the Five to Fifteen questionnaire (FTF), measuring symptoms of anxiety and depression, and the Vineland Adaptive Behavior Scales (VABS) about the adolescent’s adaptive functioning.

Results: Approximately a third of the study group self-reported substantial internalizing mental symptoms not always recognized by parents, and not always obvious in adaptive function or performance at ADHD test. Correlations between BYI and FTF were low. The BYI depression inventory correlated negatively with VABS and positively with activity level in a subgroup medicated for ADHD. There was a stronger correlation between girls BYI and FTF results as compared with boys.

Conclusions: The results highlight the need for identification of anxiety and depression, using both self- and parent report. Present anxiety and depression symptoms do not seem to affect the clinical assessment of ASD and ADHD.     

Depression and anxiety in men with sexual dysfunction: a retrospective study

BackgroundComorbid anxiety disorders and depression are commonly seen in men with sexual disorders such as erectile dysfunction (ED) and premature ejaculation (PE). However, they are often undiagnosed and untreated, and their relationship to sexual dysfunction is complex. This study examines the frequency and correlates of comorbid anxiety and depression in men with ED or PE.MethodsThe case records of 64 men with ED or PE attending a clinic for psychosexual disorders in a general hospital psychiatry unit during the period 2010–14 were reviewed. Information on comorbid anxiety disorders and depression was extracted from these records, and their clinical and demographic associations were analyzed.ResultsEight (12.5%) men had comorbid depressive disorders, and fifteen (23.4%) had anxiety disorders. These disorders predated the onset of sexual dysfunction in the majority of patients. Generalized anxiety disorder was the commonest anxiety disorder. Men with comorbid depression had significantly elevated rates of suicidal ideation or behavior related to their sexual dysfunction, and were more likely to report a lack of libido. Men with pre-existing anxiety disorders were more likely to experience performance anxiety related to sex, and to have PE without comorbid ED.ConclusionsDepression and anxiety affect a substantial minority of men with sexual dysfunction. Men presenting for the evaluation of ED and PE should be carefully screened for these disorders. The links between anxiety disorders and sexual performance anxiety merit further investigation in this patient group.     

The characteristics of the comorbidity between social anxiety and separation anxiety disorders in adult patients

Abstract

Objective: In the present study, we compared social anxiety disorder (SAD) patients with (n?=?31) and without childhood and adulthood separation anxiety disorder (SeAD) (n?=?50) with respect to suicidal behavior, avoidant personality disorder (AvPD), other anxiety disorders (ADs), and major depression as well as some sociodemographic variables.

Methods: In assessment of patients, we used Structured Clinical Interview for Separation Anxiety Symptoms, childhood and adulthood Separation Anxiety Symptom Inventories, Liebowitz Social Anxiety Scale, The SCID-II Avoidant Personality Disorder Module, Beck Depression Inventory, and Beck Scale for Suicidal Ideation.

Results: SAD patients with SeAD had higher comorbidity rates of AvPD, other lifetime ADs and panic disorder, and current major depression than those without SeAD. The current scores of SAD, depression, and suicide ideation and the mean number of AvPD symptoms were significantly higher in comorbid group compared to pure SAD subjects. The SAD and SeAD scores had significant associations with current depression, suicide ideations, and AvPD. The mean number of AvPD criteria and the current severity of depression were significantly associated with the comorbidity between SAD and SeAD.

Conclusion: Our findings might indicate that the comorbidity of SeAD with SAD may increase the risk of the severity of AvPD and current depression.     

Associations between HPA axis functioning and level of anxiety in children and adolescents with an anxiety disorder

The hypothalamus-pituitary-adrenal (HPA) axis becomes active in response to stress. Hence, increased levels of anxiety in children and adolescents may be associated with changes in HPA-axis functioning. The aim of this study was to test if level of anxiety or specific anxiety disorders were associated with basal HPA axis activity in children and adolescents with an anxiety disorder. In 99 8- to 16-year-olds with an anxiety disorder, basal cortisol levels were assessed. It was tested if (1) cortisol levels correlated with the level of self-reported anxiety and (2) if cortisol levels were different for individuals with different anxiety disorders. In girls, low levels of anxiety were associated with a stronger rise in early morning cortisol concentrations. In both boys and girls, harm avoidance predicted low cortisol concentrations after awakening. Separation anxiety and physical anxiety symptoms predicted cortisol concentrations at noon. Differences between individuals with different anxiety disorders were not found. More research is needed regarding mechanisms that explain the associations that were found, and to investigate if treatment may influence HPA axis functioning in children and adolescents with an anxiety disorder.     

Depression in university students: associations with impulse control disorders

Objective: The purpose of this study was to assess the implications of depression in a sample of university students, particularly relating to impulse control disorders. While previous studies have shown high rates of depression among university students, no study to date has assessed whether levels of depression show associations with the incidence of impulse control disorders in this population.

Methods: In all, 6000 students participated in the College Student Computer Use Survey. A total of 1717 students completed the scales of interest for this analysis. Participants were assigned to groups based on depression scores: severe (N?=?75), mild/moderate (N?=?647) and none (N?=?995). The three groups were assessed using analysis of variance (ANOVA) or chi-square test. A multinomial logistic regression analysis was used to elucidate associations between depression and impulse control disorder diagnoses.

Results: Groups differed across demographic, health and academic variables. The severe depression group reported higher rates of skin-picking disorder, compulsive sexual behaviour and compulsive buying.

Conclusion: Results suggest a significant association between depression and impulse control disorders. One possibility is that a facet of impulsivity contributes to both problems, which could be important information for clinicians. Future studies will need to clarify the exact nature of the relationship between depression and impulse control disorders.     

Is there an association between short sleep duration and adolescent anxiety disorders?

ObjectiveThe purpose of this study is to provide the first data on the prospective, reciprocal association between short sleep duration and DSM-IV anxiety disorders among adolescents.MethodsA community-based two-wave cohort study included 4175 youths aged 11–17 years at baseline, with 3134 of these followed up a year later, drawn from a metropolitan area with a population of over 4 million. Anxiety is defined as any DSM-IV anxiety disorder in the past year generalized anxiety: panic disorder, agoraphobia without panic, social phobia, and post-traumatic stress disorder. Short sleep duration is defined as ≤6 h of sleep per night.Results/ConclusionsIn multivariate analyses, short sleep duration every night at baseline predicted anxiety disorders at follow-up, controlling for anxiety at baseline. Examining the reciprocal association, anxiety disorders at baseline did not predict short sleep duration at follow-up. We are the first to examine the reciprocal effects for anxiety disorders and sleep duration among adolescents using prospective data. The data suggest that reduced quantity of sleep may increase risk for anxiety, but anxiety does not increase risk for decreased sleep duration.     

Mental health problems of second generation children and adolescents with migration background

Objective: Despite the growing number of young second-generation immigrant (SGI) children and adolescents, studies about their mental health are rare. The objective of this study was to investigate the mental health problems of SGI children and adolescents in Istanbul, Turkey.

Methods: In a clinical sample the mental health of 54 SGIs and 50 native children and adolescents were examined using the Schedule for Affective Disorders and Schizophrenia for School Aged Children-Present and Lifetime Version (K-SADS-PL) and Children’s Global Assessment Scale. The assessments were carried out by a blinded rater.

Results: SGI children had higher rates of psychiatric disorders such as depression (p?=?0.001), post-traumatic stress disorder (PTSD) (p?=?0.011) and anxiety disorders (p?=?0.013), more comorbid disorders and lower functionality scores compared to their native counterparts (p?=?0.001).

Conclusions: SGI children seem to have higher rates of psychiatric disorders most probably due to migration-induced burdens. The professionals treating SGI children should have more awareness for these problems to be able to approach them in a culture and language sensitive way.     

Associations between anxiety disorders and physical illness

Abstract. Objective: In contrast to the literature on the association of depression with medical illness, less is known about the comorbidity among anxiety and somatic disorders. Although associations between anxiety disorders and medical illnesses have been reported, prior studies have not adjusted for the effects of gender, substance abuse/dependence, and depression. This study examined the patterns of comorbidity of anxiety disorders and physical illnesses. Method: A total of 262 probands were selected from treatment settings or were randomly recruited from the community. DSM-III-R diagnoses were obtained based on direct interview (SADS) or family history information, and lifetime history of numerous medical illnesses were obtained. Results: Patients with a lifetime anxiety disorder reported higher rates of several medical illnesses than did persons without anxiety. After controlling for the effects of gender, comorbid substance abuse/dependence and/or depression, significant associations were found between anxiety disorder and cardiac disorders (OR = 4.6), hypertension (OR = 2.4), gastrointestinal problems (OR = 2.4), genitourinary disorders (OR = 3.5), and migraine (OR = 5.0). A similar pattern was observed for probands with panic or generalized anxiety disorder (GAD). Conclusions: Anxiety disorders were associated with a specific pattern of cardiac disorders, hypertension, gastrointestinal problems, genitourinary difficulties, and migraine; individuals presenting with anxiety disorders or medical illness need therefore to be evaluated carefully for comorbidity.     

Investigating the relationship between plasma neuropeptide-S levels and clinical depression

Purpose: Neuropeptide-S (NPS) is a novel 20-amino acid peptide, mainly expressed in the central nervous system and endocrine tissues. NPS has been linked to anxiety and fear-related behaviors. The association of NPS with depression in a human population has not been previously examined. The aim of the current study was to explore the potential association of NPS with clinical depression and comorbid anxiety.

Materials and methods: Seventy-nine patients diagnosed with major depressive disorder and seventy-eight controls were included in the study. The Hamilton Depression Scale (HAM-D) and Hamilton Anxiety Scale (HAM-A) were used to measure depression and anxiety levels, respectively. Venous blood samples were obtained to measure plasma NPS levels.

Results: There were no statistically significant differences between the patients and controls in terms of sex, marital status, and smoking status. Plasma NPS levels were also not significantly different between the patients and controls. In patients with major depressive disorder, HAM-A and HAM-D scores were significantly higher than those of controls. No correlation was found between plasma NPS levels and age, body mass index (BMI), median HAM-A scores, and median HAM-D scores.

Conclusions: Despite a significantly high level of comorbid anxiety among the patient group, we found no relationship between plasma NPS levels and depressive symptomatology.     

The diurnal salivary cortisol pattern of adolescents from families with single, ill and healthy parents

ObjectiveAdolescents of single and/or chronically ill parents (target groups) reportedly have elevated psychological stress. However, their salivary cortisol pattern as part of the physiological stress system has not been compared to controls. The aim of this study is to examine differential outcomes in the diurnal cortisol pattern of the target groups.MethodsIn total, 100 adolescents of three groups with either single, chronically ill or two healthy parents were compared on cortisol. Three salivary cortisol samples were taken after awakening, one sample at noon and one sample at 20:00 p.m. during a non-school day. Group differences and interaction effects between measurement (5 times), group membership and covariates were tested through linear mixed modeling, repeated measures. Covariates were children's sex and age, socioeconomic status (SES) and parental depression as measured with the Beck Depression Inventory.ResultsThe three groups did not differ significantly concerning the amount of salivary cortisol, even after controlling for the covariates. The target groups had a lower SES than adolescents with two healthy parents. In addition, chronically ill parents were more depressed than single and healthy parents. Male sex and older age of the child, and lower parental depression were associated with increased cortisol values throughout the day.ConclusionResearch on cortisol in children should control for children's sex and age, and parental depression. Adolescents with single and/or chronically ill parents displayed a healthy pattern of diurnal salivary cortisol.     

Basal blood DHEA-S/cortisol levels predicts EMDR treatment response in adolescents with PTSD

Objective: In literature, recent evidence has shown that the hypothalamic–pituitary–adrenal (HPA) axis can be dysregulated in patients with post-traumatic stress disorder (PTSD) and HPA axis hormones may predict the psychotherapy treatment response in patients with PTSD. In this study, it was aimed to investigate changing cortisol and DHEA-S levels post-eye movement desensitization and reprocessing (EMDR) therapy and the relationship between treatment response and basal cortisol, and DHEA-S levels before treatment.

Method: The study group comprised 40 adolescents (age, 12–18 years) with PTSD. The PTSD symptoms were assessed using the Child Depression Inventory (CDI) and Child Post-traumatic Stress Reaction Index (CPSRI) and the blood cortisol and DHEA-S were measured with the chemiluminescence method before and after treatment. A maximum of six sessions of EMDR therapy were conducted by an EMDR level-1 trained child psychiatry resident. Treatment response was measured by the pre- to post-treatment decrease in self-reported and clinical PTSD severity.

Results: Pre- and post-treatment DHEA-S and cortisol levels did not show any statistically significant difference. Pre-treatment CDI scores were negatively correlated with pre-treatment DHEA-S levels (r: ?0.39). ROC analysis demonstrated that the DHEA-S/cortisol ratio predicts treatment response at a medium level (AUC: 0.703, p: .030, sensitivity: 0.65, specificity: 0.86).

Conclusion: The results of this study suggested that the DHEA-S/cortisol ratio may predict treatment response in adolescents with PTSD receiving EMDR therapy. The biochemical parameter of HPA-axis activity appears to be an important predictor of positive clinical response in adolescent PTSD patients, and could be used in clinical practice to predict PTSD treatment in the future.     

The hypothalamic-pituitary-adrenal axis in the perinatal period: Its relationship with major depressive disorder and early life adversity

Abstract

Objectives: Effects of major depressive disorder and early life adversity (ELA) on the maternal HPA axis in the perinatal period were examined.

Methods: Four groups of women (n?=?127) were recruited, with the perinatal groups being compared during pregnancy (Preg) and at two months postpartum (PP) – [1] Depressed during pregnancy (Depressed-Preg/PP), [2] Prior history of depression but euthymic during pregnancy (History-Preg/PP), [3] Healthy pregnant women (Control-Preg/PP), and [4] Healthy non-pregnant women (Non-pregnant Control). Serial saliva samples were collected over the course of a day and waking and evening cortisol, total cortisol output and the cortisol awakening response were examined.

Results: There were no HPA axis differences among the three groups during pregnancy. A history of ELA, regardless of comorbid depression, was associated with higher evening cortisol levels during pregnancy (p?=?0.015). Women in the Depressed-PP group had had higher evening cortisol levels compared to the History-PP group (p?<?0.017).

Conclusions: Evening cortisol measures are a potential marker for both ELA and depression, with higher levels during pregnancy being associated with ELA and higher levels postpartum being associated with antenatal depression.