Are Iranian obese women candidate for bariatric surgery different cognitively, emotionally and behaviorally from their normal weight counterparts?

Utilization of a precision medicine genetic and psychosocial approach in outcome assessment of bariatric weight loss surgery: a narrative review

The obesity epidemic has become a global public health issue, impacting more than one billion people worldwide. 9% of the US population, or 28.8 million Americans will have an eating disorder in their lifetime. In fact, global eating disorder prevalence increased from 3.5% to 7.8% between 2000 and 2018. In spite of the fact that less than 6% of people with an eating disorder are medically underweight, it is indeed an important factor when considering issues related to obesity. This public health problem is often described as being caused by various genetic and psychosocial factors. One of the most effective strategies for treating morbid obesity and achieving significant weight loss is bariatric surgery. Recent focus on precision medicine approaches has expanded into bariatric surgery in an effort to better understand and achieve improved outcomes and reduce risk for post-operative weight regain and addiction transfers during the recovery process. Addiction transfers, including substance and non-substance addictions, are well established concerns for post-bariatric patients. This review details the genetic, molecular and psychosocial factors that can be utilized to inform and guide personalized treatment. Additionally, this review details some of the molecular mechanisms including dysregulation of catecholamine signaling as well as other neurotransmitter systems relevant to help further understand recovery science.

Evaluation of the relationship between childhood traumas and emotion regulation skills in terms of adult obesity

This study aims to reveal the relationship between childhood traumas and emotion regulation skills of obese and non-obese individuals. The research is a comparative-descriptive and correlational study. The obese group included 52 people with a BMI ≥ 30, and the non-obese group included 58 people with a BMI ≤ 25 kg/m2. Information Form, Childhood Trauma Questionnaire (CTQ), and Emotion Regulation Skills Questionnaire (ERSQ) were used in the study data. The rates of total childhood trauma and physical neglect were significantly higher in obese individuals (53.8 % vs. 32.8 %; 50 % vs. 22.4 %, respectively) than in non-obese individuals. Obese individuals were found to have lower emotion regulation skills. While a significant inverse relationship was found between childhood trauma and emotion regulation skills total and sub-dimension scores in obese individuals, no significant relationship was found in non-obese individuals. Psychiatric-mental health nurses can play an active role in the prevention and treatment of obesity by providing emotion regulation training to individuals in their roles as counselors and educators.

The First Exploratory Personalized Medicine Approach to Improve Bariatric Surgery Outcomes Utilizing Psychosocial and Genetic Risk Assessments: Encouraging Clinical Research

It is predicted that by 2030, globally, an estimated 2.16 billion adults will be overweight, and 1.12 billion will be obese. This study examined genetic data regarding Reward Deficiency Syndrome (RDS) to evaluate their usefulness in counselling patients undergoing bariatric surgery and gathered preliminary data on the potential use in predicting short term (6-month) weight loss outcomes. Methods: Patients undergoing bariatric surgery (n = 34) were examined for Genetic Addiction Risk Severity (GARS) [measures the presence of risk alleles associated with RDS]; as well as their psychosocial traits (questionnaires). BMI changes and sociodemographic data were abstracted from Electronic Health Records. Results: Subjects showed ∆BMI (M = 10.0 ± 1.05 kg/m2) and a mean % excess weight loss (56 ± 13.8%). In addition, 76% of subjects had GARS scores above seven. The homozygote risk alleles for MAO (rs768062321) and DRD1 (rs4532) showed a 38% and 47% prevalence among the subjects. Of the 11 risk alleles identified by GARS, the DRD4 risk allele (rs1800955), was significantly correlated with change in weight and BMI six months post-surgery. We identified correlations with individual risk alleles and psychosocial trait scores. The COMT risk allele (rs4680) showed a negative correlation with EEI scores (r = -0.4983, p < 0.05) and PSQI scores (r = -0.5482, p < 0.05). The GABRB3 risk allele (rs764926719) correlated positively with EEI (r = 0.6161, p < 0.01) and FCQ scores (r = 0.6373, p < 0.01). The OPRM1 risk allele showed a positive correlation with the DERS score (r = 0.5228, p < 0.05). We also identified correlations between DERS and BMI change (r = 0.61; p < 0.01). Conclusions: These data support the potential benefit of a personalized medicinal approach inclusive of genetic testing and psychosocial trait questionnaires when counselling patients with obesity considering bariatric surgery. Future research will explore epigenetic factors that contribute to outcomes of bariatric surgery.

Maladaptive Cognitive Schemas as Predictors of Disordered Eating: Examining the Indirect Pathway through Emotion Regulation Difficulties

A scarcity of research has looked into the association of maladaptive core beliefs with dysfunctional eating patterns. Moreover, no prior study has considered the potential role of difficulties in negative emotion regulation when disentangling the complex correlations between early maladaptive schemas and disturbed eating habits. Our study aimed at exploring the distinct relationships between early maladaptive schemas and disordered eating, while investigating the indirect role of emotion regulation difficulties within these associations. We collected data from 982 Lebanese young adults (18-30 years old), distributed across the five Lebanese governorates, who completed the Eating Attitudes Test (EAT-26), the Young Schema Questionnaire-Short Form 3 (YSQ-SF3), and the Difficulties in Emotion Regulation Scale-16 Item Version (DERS-16). The results showed that the disconnection and rejection schema domain, under which the early maladaptive schema of mistrust was the most predictive of disordered/inappropriate eating attitudes. All the remaining maladaptive schema domains (i.e., the impaired autonomy/performance, impaired limits, other-directedness, and overvigilance/inhibition schema domains) exerted significant indirect effects on disordered eating attitudes through difficulties in emotion regulation. Our findings gave prominence to a potential intrinsic mechanism through which maladaptive cognitive schemas are linked to disordered eating behaviors, emphasizing the role of emotion dysregulation as a cardinal actor within this model. They sustain the surmise that cognitively and emotionally vulnerable individuals exhibit stronger propensities for inappropriate dietary patterns, as a means to offset their inner weakness. This study broadens the medical community's insights into the underpinning processes behind eating disorder psychopathology and could therefore make a step towards the adoption of innovative therapeutic approaches that promote emotion regulation skills in the context of schema therapy.

Emotion and overeating behavior: effects of alexithymia and emotional regulation on overweight and obesity

PURPOSE

Obesity and overweight are significant risk factors for many serious diseases. Several studies have investigated the relationship between emotional regulation and overweight or obesity in people with eating disorders. Although a few studies have explored alexithymia in individuals with severe obesity without eating disorders, no attention has been paid to individuals with overweight and preclinical form of obesity. This study aims to assess whether overweight and obesity are related to emotional dysregulation and alexithymia.

METHODS

The study involved 111 undergraduate students who had not been diagnosed with an eating disorder. The sample was divided into two groups according to their body mass index (BMI): normal weight (N = 55) and overweight (N = 56). All of them completed the Toronto Alexithymia Scale (TAS-20), the Emotional Regulation Questionnaire (ERQ), and the Eating Disorder Inventory-2 (EDI-2).

RESULTS

Results showed higher levels of alexithymia, and specifically higher difficulty in identifying feelings and an externally oriented thought, in participants with overweight. Multiple correlation analysis highlighted the positive relations between some EDI-2 subscales and both alexithymia and emotional regulation scores. Linear regressions revealed a significant relationship between body BMI and both alexithymia and emotional regulation strategies.

CONCLUSIONS

The condition of overweight/obesity seems to be associated with higher emotional dysregulation compared to normal weight condition. It is essential to study this relationship because it could represent a risk factor for the worsening of problems related to overeating and excessive body weight. These findings suggest that an integrated approach aimed at considering the promotion of emotional regulation could contribute to the effectiveness of a program designed to reduce overweight and obesity.

LEVEL OF EVIDENCE

Level III: case-control analytic study.

Interoceptive reliance as a major determinant of emotional eating in adult obesity

This study examined the association between emotional eating, emotion dysregulations, and interoceptive sensibility in 116 patients with obesity by distinguishing an “awareness” and a “reliance” component of interoceptive sensibility. Deficits in interoceptive awareness were only associated with more emotional eating in obesity through less interoceptive reliance and more emotion dysregulations. The results suggest that good interoceptive awareness can increase the risk of emotional eating if not supported by good interoceptive reliance. Interoceptive reliance, like the ability to trust, positively consider, and positively use inner sensations, should be a privileged target of psychotherapeutic interventions in obesity.

Difficulties in emotion regulation and deficits in interoceptive awareness in moderate and severe obesity

PURPOSE

Difficulties in emotion regulation and deficits in interoceptive awareness may be responsible for overeating and weight gain in obesity by increasing the risks of problematic eating behaviors. This study aimed to: (1) examine emotion regulation difficulties and interoceptive deficits in obesity; (2) compare the emotion regulation and interoceptive abilities of moderately and severely obese patients.

METHODS

Participants were recruited through the university, diabetology centers and bariatric surgery departments. A total of 165 participants were categorized in three groups, matched by age and gender, according to their Body Mass Index (BMI). The severely obese (SO), moderately obese (MO) and normal weight (NW) groups were constituted of 55 participants each. Self-report questionnaires were used to assess emotion regulation difficulties (CERQ-DERS) and interoceptive awareness (MAIA-FFMQ).

RESULTS

Overall, obese participants reported more emotion regulation difficulties and less interoceptive awareness than NW participants did. They also reported a lack of planning strategies and emotional awareness, as well as less ability to observe, notice and trust body sensations. No differences in emotion regulation and interoceptive abilities were found between MO and SO participants.

CONCLUSIONS

Emotion regulation and interoceptive awareness should be targeted in the psychotherapeutic care of obese people, regardless of their BMI.

LEVEL OF EVIDENCE

Level III, case-control analytic study.

Emotional processing in obesity: a systematic review and exploratory meta-analysis

The role of emotional functioning in the development and maintenance of obesity has been investigated, but the literature is poorly integrated. A systematic review and meta-analysis was performed to explore emotional processing impairments in obesity. PubMed, Web of Knowledge and PsycINFO databases were searched in March 2016, yielding 31 studies comparing emotional processing competencies in individuals with obesity, with or without binge eating disorder (BED), and control groups. Meta-analyses demonstrated that individuals with obesity had higher scores of alexithymia (d = 0.53), difficulty in identifying feelings (d = 0.34) and externally oriented thinking style (d = 0.31), when compared with control groups. On other competencies, patients with obesity, especially those with comorbid BED, reported lower levels of emotional awareness and difficulty in using emotion regulation strategies, namely, reduced cognitive reappraisal and acceptance, and greater suppression of expression. No evidence of impaired ability to recognize emotions in others or verbally express emotions was found. A general emotion-processing deficit in obesity was not supported. Instead, an emotional avoidance style may occur modulating later responses of emotion regulation. Additional research is needed to extend the comprehension of these conclusions and the role of BED in emotional functioning in obesity.

Association between depression and eating behaviors among bariatric surgery candidates in a Turkish sample

PURPOSE

The purpose of this study was to explore further whether depression is associated with problematic eating behaviors in a sample of Turkish bariatric surgery candidates.

METHODS

This descriptive study included 168 consecutively seen bariatric surgery candidates in a university bariatric surgery outpatient. Participants were asked to complete the Dutch Eating Behavior Questionnaire (DEBQ), the Beck Depression Inventory (BDI) and surveys assessing sociodemographic and clinical variables. Correlations and linear regression analyses were performed to evaluate the relationship between clinical and demographic variables.

RESULTS

Participants had a mean age 37.7 ± 11.3 years and BMI of 46.4 ± 6.7 kg/m² (SD = 6.7). According to BDI scores, 75.5 % of the patients had mild, moderate, or severe depressive symptomatology. Lower levels of depressive symptoms were associated with higher levels of restrictive eating (r = -0.17; p = 0.04), whereas higher levels of depressive symptoms were associated with more frequent eating in response to both internal (r = 0.3; p = 0.002) and external (r = 0.2; p = 0.04) cues. The BDI scores were significantly associated with increased external eating (ß = 0.03, p < 0.02) and emotional eating (ß = 0.03, p < 0.002) scores. BMI (β = -0.02, p = 0.02 > 0.1) was not associated with DEBQ total scores.

CONCLUSIONS

This research suggests that mild, moderate or severe depressive symptoms are observed in most of the bariatric surgical candidate patients. There is a positive correlation between severity of depression and emotional/external eating behaviors, and a negative correlation between severity of depression and restrictive eating behavior. Additional research is needed to determine whether treating depression preoperatively can assist with alleviating problematic eating behaviors.