An Exploratory Study of Emotional Dysregulation Dimensions in Youth With Attention Deficit Hyperactivity Disorder and/or Bipolar Spectrum Disorders

Emotional dysregulation (ED) is currently the most frequently used term to describe children with an impaired regulation of emotional states. Recent research studies speculate whether ED may be a neurodevelopmental disorder itself, a shared risk factor, or a common key feature of several psychiatric disorders, including, among others, attention deficit hyperactivity disorder (ADHD), and bipolar spectrum disorders (BSD). The association between ADHD and ED is one of the main reasons of misconceptions in the definition of boundaries between ADHD and BSD, leading to the frequent misdiagnosis of ADHD as BSD. Since ED is a multidimensional concept, a novel instrument-the Reactivity, Intensity, Polarity and Stability (RIPoSt) scale-was recently developed to assess the different dimensions of ED, which could help in detecting specific ED profiles in clinical youths. Our study included 154 patients, aged 13.8 ± 2.3 years, diagnosed with either ADHD, BSD, or comorbid condition, and a school-based sample of 40 healthy control (HC) adolescents, aged 12.5 ± 1.2 years. The RIPoSt scale and the Child Behavior Checklist were administered to both groups. Our results indicate that affective instability and negative emotionality subscales, as well as negative emotional dysregulation, are higher in BSD, both pure and comorbid with ADHD, while emotional impulsivity is higher in the comorbid condition and similar in the ADHD and BSD alone group; all clinical groups scored higher than HC. Conversely, positive emotionality is similar among clinical groups and within them and HC. Our findings also support the validity of the RIPoSt questionnaire, since the instrument proved to have good-to-excellent internal consistency, and strongly significant positive correlations were found with the CBCL-Dysregulation Profile, which is a commonly used, indirect measure of ED. Hence, the five subscales of the RIPoSt can be reliably used as an effective tool to study the emotional dysregulation in different clinical conditions, to help disentangle the complex relationship between ADHD and juvenile BSD and to provide clinicians with crucial evidence for better diagnostic characterization and therapeutic indications.

Non suicidal self-injury in referred adolescents with mood disorders and its association with cyclothymic-hypersensitive temperament

BACKGROUND

Non suicidal self-injuries (NSSIs) are deliberate self-harm behaviors without suicidal intent, usually starting in adolescence, with increasing rates of occurrence both in epidemiological and clinical samples. Several studies associated cyclothymic-hypersensitive temperament (CHT) with self-harm behaviors and suicidal risk. Aim of this study is to explore the association between NSSIs and CHT in a clinical sample of adolescents. We hypothesized that CHT may differentiate NSSI from non-NSSI adolescents with mood disorders, when other psychopathological features are controlled for.

METHODS

A consecutive sample of 89 adolescents with mood disorders were assessed for presence and phenomenology of NSSIs, CHT, demographics, comorbid categorical psychiatric diagnoses, dimensional psychopathology, impairment and previous suicide attempts.

RESULTS

NSSIs were reported in 52% of the sample, with higher rates in females and in bipolar disorder. Regression analyses showed that CHT, but not age, gender, bipolar vs depression diagnosis, functional impairment, was associated with NSSIs.

DISCUSSION

CHT may be in close association with NSSIs in adolescents with mood disorders. An assessment of CHT in adolescents referred for mood disorder may help to detect specific psychological features of NSSIs, which may improve diagnostic and treatment strategies.

LIMITATIONS

Given the cross-sectional design, a developmental relation between CHT and NSSIs cannot be determined. The small sample size and the selection bias of severely impaired patients limit the generalization of the results. More sophisticated measures of CHT may consent to explore other dimensions of the cyclothymic construct (i.e., emotional intensity, emotional reactivity, emotional stability, positive vs. negative emotions, interpersonal sensitivity, impulsivity).

Different Immune Signature in Youths Experiencing Antipsychotic-Induced Weight Gain Compared to Untreated Obese Patients

OBJECTIVES

To assess cytokine and chemokine levels in youth experiencing antipsychotic-induced weight gain (AIWG) compared to obese patients, hypothesizing a different "immune signature" between the two kinds of obesity.

METHODS

We compared a group of youth experiencing AIWG (N 19, mean age 159 months, mean body mass index [BMI] z-score 1.81) and an age-, gender-, and BMI-matched group of untreated obese patients (N 19, mean age 147 months, mean BMI z-score 2) for a wide range of cytokines and chemokines by using a multiplex ELISA test.

RESULTS

Platelet-derived growth factor (PDGF), interleukin (IL)1-β, IL4, IL8, IL9, IL12, IL 17, eotaxin, FGF, GMCSF, IP10, MIP1b, and vascular-endothelial growth factor (VEGF) were significantly lower in the AIWG group, whereas IL13 and RANTES were significantly higher. Controlling for age, sex, and BMI, PDGF, IL4, IL8, IL13, IL17, eotaxin, fibroblast growth factor (FGF), granulocyte-macrophage colony-stimulating factor (GMCSF), IP10, MIP1b, and VEGF remain significantly different.

CONCLUSION

A clearly different pattern of cytokines distinguishes the two kinds of obesity, suggesting a different immune signature. Interestingly, most of the cytokines and chemokines bearing proinflammatory effects resulted decreased in the AIWG group, whereas IL-13, which holds an immune-modulatory effect, resulted increased.