Depressive and anxiety symptoms, dysfunctional attitudes and social aspects in irritable bowel syndrome and inflammatory bowel disease

Brain-Gut Axis: Invasive and Noninvasive Vagus Nerve Stimulation, Limitations, and Potential Therapeutic Approaches

Inflammatory bowel disease (IBD) is a chronic relapsing condition with no known etiology and is characterized by disrupted gut homeostasis, chronic inflammation, and ulcerative lesions. Although current treatments can reduce disease activity, IBD frequently recurs once treatments are discontinued, indicating that treatments are ineffective in providing long-term remission. The lack of responsiveness and reluctance of some affected persons to take medications because of potential adverse effects has enhanced the need for novel therapeutic approaches. The vagus nerve (VN) is likely important in the pathogenesis of IBD, considering the decreased activity of the parasympathetic nervous system, especially the VN, and the impaired interaction between the enteric nervous system and central nervous system in patients with IBD. Vagus nerve stimulation (VNS) has demonstrated anti-inflammatory effects in various inflammatory disorders, including IBD, by inhibiting the production of inflammatory cytokines by immune cells. It has been suggested that stimulating the vagus nerve to induce its anti-inflammatory effects may be a potential therapeutic approach for IBD. Noninvasive techniques for VNS have been developed. Considering the importance of VN function in the brain-gut axis, VNS is a promising treatment option for IBD. This review discusses the potential therapeutic advantages and drawbacks of VNS, particularly the use of noninvasive transcutaneous auricular vagus nerve stimulation.

Emotional control in selected somatic and psychiatric diseases

THE AIM

was to assess the level of subjective control of emotional states among patients treated for dermatological and gastrointestinal somatic diseases compared to those with depressive and anxiety disorders. The results were related to the analyzed dimensions of emotion regulation in healthy subjects.

MATERIALS AND METHODS

The reports of the conducted studies were compiled for a total of 310 people, including 120 patients diagnosed with a somatic disease (psoriasis, rosacea, irritable bowel syndrome, and gastroesophageal reflux), as well as 96 patients diagnosed with depressive disorders and 30 patients with anxiety disorders. The control group consisted of healthy subjects (64 individuals). To assess the psychological variables analyzed, the subjects completed the Emotion Regulation Questionnaire developed by J. Brzeziński.

RESULTS

The study showed that the patients suffering from a chronic somatic symptom disorder, similarly to those treated for depression and anxiety disorders, differed from the healthy individuals in most aspects of emotional control. The patients with dermatological and gastrointestinal diseases differed statistically significantly from the patients with depression and the patients with anxiety disorders in relation to three dimensions of emotional control. Patients with a somatic disease are characterized by higher emotional and rational motivation, lower emotional resilience and lower emotional arousal.

CONCLUSIONS

A chronic disease co-occurs with the emotional sphere of a person's daily functioning. Regardless of the diagnosis in terms of somatic disorders and mental illnesses, the way in which emotional states are controlled can be an important factor in the onset of the disease, coping with it as well as the treatment process.

Medical students' knowledge and perception of irritable bowel syndrome in comparison to inflammatory bowel disease

BACKGROUND

Gastroenterologists may hold less positive attitudes toward disorders of gut-brain interaction (DGBI) like irritable bowel syndrome (IBS) compared with organic GI disorders like inflammatory bowel disease (IBD). This contributes to worse health outcomes in patients with DGBI and decreased patient satisfaction. Medical student knowledge and perception of these two disorders have not been directly studied.

METHODS

A cohort of medical students (n = 106) completed a survey where they read clinical vignettes about patients with IBS and IBD and answered questions regarding their knowledge of and attitudes toward these two diseases.

KEY RESULTS

IBS was perceived as a less real and a more exaggerated disorder when compared to IBD, and patients with IBS were seen as more difficult to treat. With more clinical exposure across 4 years of training, students were more likely to perceive IBS as a "less real" illness, though they held fewer negative attitudes toward patients with IBS. Greater familiarity with both IBS and IBD was associated with fewer negative attitudes.

CONCLUSIONS & INFERENCES

Biases observed in gastroenterologists toward patients with IBS originate as early as the beginning of medical school, including seeing IBS as a "less real" disease and more difficult to treat. Earlier educational interventions may be helpful in identifying and addressing these biases.

Improving disease management of patients with inflammatory bowel disease: the potential role of self-concordant health goals

Inflammatory bowel diseases (IBD) are chronic gastrointestinal conditions that significantly impact patients' quality of life. Previous research indicates that patients with IBD have a higher prevalence of anxiety compared to the general population and other chronic diseases. This pilot study aimed to investigate the relationships between goal integration, positive and negative emotions, goal self-efficacy, and trait anxiety as the outcome variable, focusing on patients' self-management strategies. Drawing from the Self-Concordance Model (SCM) of Self-Determination Theory (SDT), the study explored how goal integration is associated with more fulfilling and enjoyable experiences and fewer negative emotions, ultimately improving psychological well-being. Health-related goals were evaluated using the Personal Project Analysis technique, while the State-Trait Anxiety Inventory was utilized to measure general anxiety levels. Among the 141 participants with inflammatory bowel disease, 96 reported having health-related goals. Of these, 66 were female (68.75%), and 30 were male participants (31.25%). Path analysis revealed a moderate negative association between self-concordance (SC) and negative emotions, which, in turn, predicted higher levels of trait anxiety. Furthermore, the alternative model tested indicated that trait anxiety predicted a lower level of self-concordance. Setting well-integrated health goals involves an internal capacity, enabling patients to experience less negative emotions during self-management activities. Anxiety can hinder individuals from accessing their inner needs, resulting in less self-concordant aspirations and more negative emotions. These findings may contribute to developing prevention and intervention programs to enhance IBD patients' adherence to lifestyle changes, ultimately improving their overall well-being.

Inflammatory bowel disease: perceived impact on leisure-time activities

OBJECTIVE

Inflammatory bowel disease, consisting of Crohn's disease and ulcerative colitis, is known to negatively impact an individual's quality of life. Leisure-time activities are an important part of life by creating and strengthening social networks. The aim of this study was to thoroughly evaluate the perceived impact of inflammatory bowel disease on leisure-time activities by quantifying limitations in activities caused by the disease.

METHODS

A structured questionnaire, hospital records and national registers were combined to assess limitations caused by the disease in a patient's leisure-time activities. The final study sample was 561 patients.

RESULTS

More than half of the patients (52.8%) reported that IBD had caused limitations in their leisure-time activities. Women perceived that their limitations were greater when compared to the reports by men. One-third of the patients (33.3%) reported reducing and 17.6% abandoning at least one leisure-time activity due to their disease. Most often mentioned activities that were reduced and abandoned were physical activities. The IBDQ32 score had a significant correlation with all of the studied outcomes. Laboratory tests results and the patient's age or the level of income did not correlate with limitations in leisure-time activities.

CONCLUSIONS

In conclusion, this study showed that patients with inflammatory bowel disease perceived a marked limitation in their leisure-time activities due to their disease.

Eluxadoline Versus Antispasmodics in the Treatment of Irritable Bowel Syndrome: An Adjusted Indirect Treatment Comparison Meta-analysis

Objective: Eluxadoline is a newly approved drug for irritable bowel syndrome (IBS), but it has rarely been compared with positive controls. We aimed to compare eluxadoline with antispasmodics in the treatment of IBS.

Methods: We searched the OVID Medline, Embase, and the Cochrane Central Register of Controlled Trials databases for randomized controlled trials (RCTs) comparing eluxadoline or antispasmodics with placebo. The search was conducted from 1 January 1980, to 1 September 2020, without any language restrictions. The primary efficacy outcome was the relief of abdominal pain, defined by a reduction of pain scores of at least 30% from baseline. The secondary efficacy outcome was the relief of global IBS symptoms, defined by a composite response of a decrease in abdominal pain and improvement in stool consistency on the same day for at least 50% of the days assessed. The data were pooled using a random-effects model. Outcome estimates were pooled by using Risk Ratios (RRs) and P-scores.

Results: Forty-two trials with 8,457 participants were included from 45 articles. Compared with placebo, each of drotaverine, pinaverium, alverine combined with simethicone (ACS) and eluxadoline 100 mg was highly effective in the relief of abdominal pain, with drotaverine [RR, 2.71 (95% CI, 1.70 to 4.32), P-score = 0.95] ranking first. Drotaverine, otilonium, cimetropium, pinaverium, and eluxadoline 100 mg had significantly high the relief of global IBS symptomss, for which drotaverine [RR, 2.45 (95% CI, 1.42 to 4.22), P-score = 0.95] was ranked first. No significant difference was found between these interventions. Pinaverium had a significantly higher the relief of global IBS symptoms than eluxadoline [RR, 1.72 (95% CI, 1.33 to 2.21)] on sensitivity analysis. However, no significant difference was found in the number of adverse events between each intervention and the placebo.

Conclusion: Our network meta-analysis showed that eluxadoline 100 mg was at least as effective as antispasmodics in relieving abdominal pain in IBS. But eluxadoline had more reported adverse events. Antispasmodics are still the first choice for the treatment of IBS.

A Review of Inflammatory Bowel Disease: A Model of Microbial, Immune and Neuropsychological Integration

Objective: Inflammatory bowel diseases (IBDs) are complex chronic inflammatory disorders of the gastro-intestinal (GI) tract with uncertain etiology. IBDs comprise two idiopathic disorders: Crohn’s disease (CD) and ulcerative colitis (UC). The aetiology, severity and progression of such disorders are still poorly understood but thought to be influenced by multiple factors (including genetic, environmental, immunological, physiological, psychological factors and gut microbiome) and their interactions. The overarching aim of this review is to evaluate the extent and nature of the interrelationship between these factors with the disease course. A broader conceptual and longitudinal framework of possible neuro-visceral integration, core microbiome analysis and immune modulation assessment may be useful in accurately documenting and characterizing the nature and temporal continuity of crosstalk between these factors and the role of their interaction (s) in IBD disease activity. Characterization of these interactions holds the promise of identifying novel diagnostic, interventions, and therapeutic strategies.

Material and Methods: A search of published literature was conducted by exploring PubMed, EMBASE, MEDLINE, Medline Plus, CDSR library databases. Following search terms relating to key question were set for the search included: “Inflammatory bowel diseases,” “gut microbiota,” “psychological distress and IBD,” “autonomic reactivity and IBD,” “immune modulation,” “chronic inflammation,” “gut inflammation,” “enteric nervous system,” “gut nervous system,” “Crohn’s disease,” “Ulcerative colitis”, “depression and IBD”, “anxiety and IBD”, “quality of life in IBD patients,” “relapse in IBDs,” “remission in IBDs,” “IBD disease activity,” “brain-gut-axis,” “microbial signature in IBD,” “validated questionnaires in IBD,” “IBD activity indices,” “IBD aetiology,” “IBDs and stress,” “epidemiology of IBDs”, “autonomic nervous system and gut inflammation”, “IBD and environment,” “genetics of IBDs,” “pathways of immune response in IBDs,” “sleep disturbances in IBD,” “hypothalamic-pituitary-adrenal axis (HPA),” “sympatho-adrenal axis,” “CNS and its control of gut function” “mucosal immune response,” “commensal and pathogenic bacteria in the gut,” “innate and adaptive immunity.” Studies evaluating any possible associations between gut microbiome, psychological state, immune modulation, and autonomic function with IBDs were identified. Commonly cited published literatures with high quality research methodology/results and additional articles from bibliographies of recovered papers were examined and included where relevant.

Results: Although there is a substantial literature identifying major contributing factors with IBD, there has been little attempt to integrate some factors over time and assess their interplay and relationship with IBD disease activity. Such contributing factors include genetic and environmental factors, gut microbiota composition and function, physiological factors, psychological state and gut immune response. Interdependences are evident across psychological and biological factors and IBD disease activity. Although from the available evidence, it is implausible that a single explanatory model could elucidate the interplay between such factors and the disease course as well as the sequence of the effect during the pathophysiology of IBD.

Conclusion: Longitudinal monitoring of IBD patients and integrating data related to the contributing/risk factors including psychological state, physiological conditions, inflammatory/immune modulations, and microbiome composition/function, could help to explain how major factors associate and interrelate leading to exacerbation of symptoms and disease activity. Identifying the temporal trajectory of biological and psychosocial disturbances may also help to assess their effects and interdependence on individuals’ disease status. Moreover, this allows greater insight into understanding the temporal progressions of subclinical events as potential ground for disease severity in IBD. Furthermore, understanding the interaction between these risk factors may help better interventions in controlling the disease, reducing the costs related to disease management, further implications for clinical practice and research approaches in addition to improving patients’ mental health and quality of life.

Self-help Cognitive Behavioral Therapy Improves Health-Related Quality of Life for Inflammatory Bowel Disease Patients: A Randomized Controlled Effectiveness Trial

Patients with inflammatory bowel disease (IBD) often have poor health-related quality of life (HRQL) and are at risk for anxiety and depression. Cognitive behavioral therapy (CBT) can help patients with IBD cope with their disease. Unfortunately, barriers to care include expense and availability of qualified therapists. Stand-alone, self-help CBT could improve access to care. This study examined the effectiveness of a self-help CBT workbook for patients with IBD. A randomized controlled trial compared the CBT workbook to an active psychoeducational control workbook. A total of 140 participants enrolled. In both groups, scores improved on a range of measures, including catastrophizing, visceral sensitivity, and HRQL, although pre-post effect sizes were generally larger in the CBT group. Only participants in the CBT group experienced significant improvements in anxiety and depression. Improvements were generally maintained or consolidated at 3-month follow-up. Self-help CBT can be an effective and inexpensive way to improve HRQL for patients with IBD.

Comorbid anxiety-like behavior in a rat model of colitis is mediated by an upregulation of corticolimbic fatty acid amide hydrolase

Peripheral inflammatory conditions, including those localized to the gastrointestinal tract, are highly comorbid with psychiatric disorders such as anxiety and depression. These behavioral symptoms are poorly managed by conventional treatments for inflammatory diseases and contribute to quality of life impairments. Peripheral inflammation is associated with sustained elevations in circulating glucocorticoid hormones, which can modulate central processes, including those involved in the regulation of emotional behavior. The endocannabinoid (eCB) system is exquisitely sensitive to these hormonal changes and is a significant regulator of emotional behavior. The impact of peripheral inflammation on central eCB function, and whether this is related to the development of these behavioral comorbidities remains to be determined. To examine this, we employed the trinitrobenzene sulfonic acid-induced model of colonic inflammation (colitis) in adult, male, Sprague Dawley rats to produce sustained peripheral inflammation. Colitis produced increases in behavioral measures of anxiety and elevations in circulating corticosterone. These alterations were accompanied by elevated hydrolytic activity of the enzyme fatty acid amide hydrolase (FAAH), which hydrolyzes the eCB anandamide (AEA), throughout multiple corticolimbic brain regions. This elevation of FAAH activity was associated with broad reductions in the content of AEA, whose decline was driven by central corticotropin releasing factor type 1 receptor signaling. Colitis-induced anxiety was reversed following acute central inhibition of FAAH, suggesting that the reductions in AEA produced by colitis contributed to the generation of anxiety. These data provide a novel perspective for the pharmacological management of psychiatric comorbidities of chronic inflammatory conditions through modulation of eCB signaling.

Depression, Anxiety, Related Risk Factors and Cognitive Distortion in Korean Patients with Inflammatory Bowel Disease

OBJECTIVE

To evaluate the severity of depression, anxiety, associated risk factors, and cognitive distortion in Korean patients with ulcerative colitis (UC) and Crohn's disease (CD).

METHODS

This study included 369 patients with inflammatory bowel disease. The severity of depression and anxiety was examined using Patient Health Questionnaire-9 and Hospital Anxiety and Depression Scale. The Anxious Thoughts and Tendencies scale was used to measure catastrophizing tendency. Multivariate regression analyses were performed.

RESULTS

The predictors of depression were marital status, anti-tumor necrosis factor-α (TNF-α) agent use, age, and body mass index in UC patients and marital status, disease activity, alcohol use, and employment status in CD patients. For anxiety, sex and marital status were the associated factors in UC patients, whereas steroid use was the only significant predictor in CD patients. Comparing the cognitive distortion level, there were no significant differences between UC and CD patients although there was an increasing tendency according to the severity of depression or anxiety.

CONCLUSION

If patients are accompanied by high levels of depression or anxiety and their associated risk factors including TNF-α agent or steroid use, it is recommended that not only symptoms are treated but also cognitive approach and evaluation be performed.

Does symptom activity explain psychological differences in patients with irritable bowel syndrome and inflammatory bowel disease? Results from a multi-center cross-sectional study

OBJECTIVE

Irritable bowel syndrome (IBS) and inflammatory bowel diseases (IBD) have similar symptoms and are affected by psychological factors via gut-brain-interactions. However, previous studies on IBS and IBD showed inconsistent results regarding psychological factors, potentially because they failed to consider the impact of symptom activity. The aim of this study was 1) to compare psychological distress and psychological risk factors among patients with IBS, IBD and healthy controls (HC), and 2) to assess the impact of symptom activity.

METHODS

A controlled cross-sectional study was conducted. Patients with IBS and IBD were recruited in several primary, secondary, and tertiary medical care units between 02 and 12/2017 in Germany. Overall, 381 matched participants (127/group, 63% female) were included. For the second analyses, patients with IBD were distinguished in patients with active (n = 93) and non-active (n = 34) symptoms. Psychological distress (somatization, depression, anxiety, and illness anxiety) and risk factors (adverse childhood experiences, attachment style, and mentalizing capacity) were measured.

RESULTS

Patients with IBS showed higher psychological distress and more psychological risk factors than patients with IBD and HC. However, patients with IBD and active symptoms showed similar psychological distress than patients with IBS, except for lower illness anxiety (p < .001, η² = 0.069).

CONCLUSION

With the exception of higher illness anxiety in IBS patients, differences in psychological factors between patients with IBS and IBD were more strongly associated with symptom activity than with the underlying diagnosis. Therefore, this study challenges previous concepts of distinguishing functional and organic gastrointestinal diseases, but highlights the role of symptom activity and illness anxiety.

TRIAL REGISTRATION

DRKS00011685.

I am a total failure: associations between beliefs and anxiety and depression in patients with inflammatory bowel disease with poor mental quality of life

BACKGROUND

According to cognitive behavioural theory, cognitive factors (i.e. underlying general dysfunctional beliefs and (situation) specific illness beliefs) are theorized to lead to outcomes like anxiety and depression. In clinical practice, general dysfunctional beliefs are generally not tackled directly in short-term-therapy.

AIMS

The goal of the present study was to investigate the associations of general versus specific illness beliefs on anxiety and depressive symptoms and psychiatric disorders among a subgroup of patients with inflammatory bowel disease (IBD) with poor mental quality of life (QoL).

METHOD

This study concerns cross-sectional data, collected at baseline from a randomized clinical trial. One hundred and eighteen patients, recruited at four Dutch hospitals, with poor QoL (score ≤23 on the mental health subscale of the Short-Form 36-item Health-Survey; SF-36) were included. General dysfunctional beliefs were measured by the Dysfunctional Attitude Scale (DAS), specific illness beliefs by the Illness Perceptions Questionnaire-Revised (IPQ-R), anxiety and depressive symptoms by the Hospital Anxiety and Depression Scale (HADS), and psychiatric disorders by the Structured Clinical Interview for DSM-IV Axis-I Disorders (SCID-I).

RESULTS

Univariate analyses showed associations between the level of anxiety and/or depression and general dysfunctional beliefs and four specific illness beliefs (consequences, personal control, emotional representations and treatment control). Among patients with IBD with psychiatric disorders, only the DAS was significantly associated with anxiety and depression (DAS added to IPQ-R and IPQ-R added to DAS).

CONCLUSIONS

Psychological interventions may have to target general dysfunctional beliefs of patients with IBD with co-morbid psychiatric disorders to be effective. These patients with IBD are especially in need of psychological treatment.

Relations between Coping Skills, Symptom Severity, Psychological Symptoms, and Quality of Life in Patients with Irritable Bowel Syndrome

Background:

Irritable bowel syndrome (IBS) is one of the most common functional gastrointestinal disorders with significant impact on quality of life (QOL). Considering the role of stress in the clinical course of IBS, we investigated associations between stress coping skills and symptoms and QOL in IBS patient.

Methods:

A cross-sectional study was conducted on 95 IBS patients referring to tertiary care centers. Coping skills (Jalowiec coping scale), IBS symptom severity scale, disease-specific QOL (IBS-QOL), and symptoms of depression and anxiety (Hospital Anxiety and Depression Scale [HADS]) were evaluated by questionnaires. Bivariate and multivariate analyses were performed to investigate association among these parameters.

Results:

Disease severity was positively correlated with emotive (r = 0.30) and fatalistic (r = 0.41) and negatively correlated with optimistic (r = −0.25) and confrontive (r = −0.24) coping strategies. Psychological dysfunction (total HADS score, B [95% (confidence interval) CI] = 2.61 [0.001–5.21]) and fatalistic coping (B [95% CI] = 35.27 [0.42–70.13]) were significant predictors of IBS severity.

Conclusions:

However, IBS patients involved in this study utilized adaptive coping strategies more frequently. Our study showed that use of maladaptive coping strategies had positive correlation with symptom severity and degree of anxiety and depression among patients, while implementation of optimistic strategies were found to be negatively correlated to severity of symptoms and also utilization of adaptive coping styles was associated with lesser degree of anxiety and depression.

Risk of Anxiety and Depression in Patients with Inflammatory Bowel Disease: A Nationwide, Population-Based Study

Background and Aims: Inflammatory bowel disease (IBD) may be associated with anxiety and depression. The aim of this study was to evaluate the incidence of anxiety and depression in patients with IBD compared to the general population. Methods: A nationwide population-based cohort study was conducted using claims data from the National Healthcare Insurance service in Korea. We compared the incidence of anxiety and depression between 15,569 IBD patients and 46,707 non-IBD controls, age and sex matched at a ratio of 1:3. Results: During a mean follow-up of six years, IBD patients experienced significantly more anxiety (12.2% vs. 8.7%; p < 0.001) and depression (8.0% vs. 4.7%; p < 0.001) compared to controls. The curves showing cumulative incidences of anxiety and depression showed a steep rise within one year following a diagnosis of IBD, leading to lines with a constant slope. The hazard ratio (HR) for new onset anxiety following a diagnosis of Crohn’s disease (CD) and ulcerative colitis (UC) was 1.63 and 1.60, respectively, compared to controls (p < 0.001). Compared to controls, the HR for developing depression after a diagnosis of CD and UC was 2.09 and 2.00, respectively (p < 0.001). The risks of anxiety and depression in patients with IBD were higher compared to controls, except in those with diabetes mellitus, hypertension, and dyslipidemia, or who required immunomodulators and biologics within one year of the IBD diagnosis. Conclusions: The risk of anxiety and depression increased after a diagnosis of IBD compared to the general population.

Electroacupuncture and Moxibustion Improved Anxiety Behavior in DSS-Induced Colitis Mice

Background and Aims

Psychological disorders are prevalent in patients with inflammatory bowel disease, but the underlying mechanisms remain unknown. The aim of this study was to study whether electroacupuncture (EA) and moxibustion (MB) can improve anxiety behavior in DSS-induced colitis mice and to investigate whether this effect is related to hypothalamic-pituitary-adrenocortical (HPA) axis.

Methods

The colitis model was established by drinking 2.5% dextran sodium sulfate (DSS). DSS-induced colitis mice were treated by EA or MB. Disease activity index (DAI) was scored; intestinal morphological and pathological structure was observed; anxiety behavior was tested by the elevated plus maze and open field. The concentration of corticotropin-releasing hormone (CRH) and cortisol (CORT) in serum was measured by enzyme-linked immunosorbent assay (ELISA). The protein expression of CRH in the colon and hypothalamus was detected by Western blot (WB).

Results

Both EA and MB treatments can improvethe morphology of their distal colonic mucosal epithelia, as well as the disease activity index. Meanwhile, anxiety behavior in colitis mice was improved slightly after EA and MB treatment. In addition, the levels of CRH and CORT in the serum were slightly improved after EA and MB treatment. These effects are further supported by WB results. The expression of CRH in the colon and hypothalamus was increased significantly after treatment, compared with the model group.

Conclusion

EA and MB were able to regulate the concentration of CRH in serum and protein expression in the peripheral and central at different levels and promote the recovery of the HPA axis that may be the basis for EA and MB to improve colonic pathology and alleviate anxiety behavior in DSS-induced colitis.

The Efficacy of Acceptance and Commitment Therapy (ACT) Matrix on Depression and Psychological Capital of the Patients with Irritable Bowel Syndrome

BACKGROUND:

Irritable bowel syndrome (IBS) is one of the most common functional gastrointestinal disorders, worldwide. Psychological disorders are common among patients with IBS.

AIM:

This study aims to investigate the efficacy of acceptance and commitment therapy (ACT) matrix on depression and psychological capital of patients with IBS.

MATERIAL AND METHODS:

In a quasi-experimental study, a total number of 30 patients with IBS were selected using convenience sampling. Those patients who meet the inclusion criteria were randomly assigned to control and experimental groups (15 patients in each group). Data were collected using the Beck Depression Inventory (BDI) and the Psychological Capital Questionnaire (PCQ). The experimental group was subjected to the acceptance and commitment therapy (ACT) amtrix, but the control group do not receive this treatment. Questionnaires were completed before (pre-test) and after (post-test) the intervention by patients in two groups. All patients in two groups responded to the questionnaires and returned them to the researcher. Data were analyzed using chi-square test, independent t-test, analysis of covariance (ANCOVA) and multivariate analysis of covariance (MANCOVA).

RESULTS:

Analyzing the data showed that there were significant differences regarding depression and psychological capital between experimental and control group, before and after the study (p < 0.05).

CONCLUSION:

Using ACT matrix is a useful modality to improve the depression and psychological capital among patients with IBS.

The Gut⁻Brain Axis in the Neuropsychological Disease Model of Obesity: A Classical Movie Revised by the Emerging Director "Microbiome"

The worldwide epidemic of obesity has become an important public health issue, with serious psychological and social consequences. Obesity is a multifactorial disorder in which various elements (genetic, host, and environment), play a definite role, even if none of them satisfactorily explains its etiology. A number of neurological comorbidities, such as anxiety and depression, charges the global obesity burden, and evidence suggests the hypothesis that the brain could be the seat of the initial malfunction leading to obesity. The gut microbiome plays an important role in energy homeostasis regulating energy harvesting, fat deposition, as well as feeding behavior and appetite. Dietary patterns, like the Western diet, are known to be a major cause of the obesity epidemic, probably promoting a dysbiotic drift in the gut microbiota. Moreover, the existence of a "gut⁻brain axis" suggests a role for microbiome on hosts' behavior according to different modalities, including interaction through the nervous system, and mutual crosstalk with the immune and the endocrine systems. In the perspective of obesity as a real neuropsychological disease and in light of the discussed considerations, this review focuses on the microbiome role as an emerging director in the development of obesity.

Anxiety, depression, and inflammation after restorative proctocolectomy

PURPOSE

Anxiety and depression (A&D) are more common in inflammatory bowel disease (IBD) and in IBD patients who undergo proctocolectomy with ileal pouch-anal anastomosis (IPAA). Our aim was to test the hypothesis that chronic inflammatory conditions in IPAA are associated with increased incidence of A&D.

METHODS

Retrospective cohort study at a single tertiary care referral center using a consented IBD and colon cancer natural history registry. Demographic and clinical factors, including surgical and psychiatric history, were abstracted.

RESULTS

We compared A&D rate in three cohorts: (1) ulcerative proctocolitis with IPAA (UC) (n = 353), (2) Crohn's disease/indeterminate proctocolitis with IPAA (CDIC) (n = 49), and (3) familial adenomatous polyposis with IPAA (FAP) (n = 33). Forty-six CDIC patients (93.9%) demonstrated pouch-related inflammation, while 126 UC patients (35.7%) and 2 FAP patients (6.1%) developed pouchitis. CDIC had a higher rate of A&D co-diagnosis compared to UC and FAP (20.4 vs.12.7 vs.12.1% respectively; p < 0.05). UC patients with pouchitis also exhibited a higher rate of A&D than UC without pouchitis (19.8 vs.8.8%; p < 0.05). Multivariable analysis demonstrated that pre-operative corticosteroid use (OR = 4.46, CI = 1.34-14.87, p < 0.05), female gender (OR = 2.19, CI = 1.22-3.95, p < 0.01), tobacco use (OR = 2.92, CI = 1.57 = 5.41, p < 0.001), and pouch inflammation (OR = 2.37, CI = 1.28-4.39, p < 0.05) were each independently associated with A&D in these patients.

CONCLUSIONS

Anxiety and depression were more common in patients experiencing inflammatory conditions of the pouch. UC without pouchitis and FAP patients demonstrated lower rates of A&D (that were comparable to the general population), implying that having an IPAA alone was not enough to increase risk for A&D. Factors independently associated with A&D in IPAA included an inflamed pouch, corticosteroid use, smoking, and female gender.

Comparison of comorbid depression between irritable bowel syndrome and inflammatory bowel disease: A meta-analysis of comparative studies

BACKGROUND

The prevalence of comorbid depression is high in chronic gastrointestinal disorders, including irritable bowel syndrome (IBS) and inflammatory bowel disease (IBD). For these two disorders in particular, the findings have not been consistent. This meta-analysis systematically compares the rates and severity of comorbid depression between IBS and IBD patients.

METHODS

A systematic literature search was conducted using PubMed, PsycINFO, Embase, Cochrane Library, Wan Fang, SinoMed, Chinese National Knowledge Infrastructure from their inception date to September 12, 2017 for comparative studies on IBS and IBD patients. Standardized mean differences (SMDs) and odds ratios (OR) of comorbid depression were calculated using random effect models. Data on comorbid anxiety in the included studies were also extracted and analyzed.

RESULTS

Altogether, 22 studies with 1,244 IBS and 1,048 IBD patients were included. While there was no significant group difference in the prevalence of depression (10 studies, OR = 1.18, 95%CI: 0.87-1.60, P = 0.29), the IBS group had more severe depression (pooled SMD = 0.18, 95%CI: 0.04-0.33, P = 0.01) and anxiety than the IBD group (pooled SMD = 0.31, 95%CI: 0.14-0.49, P = 0.0006). Sixteen (72.7%) studies were assessed as 'high quality' using the Newcastle-Ottawa Scale (NOS).

CONCLUSIONS

Although the prevalence of comorbid depression was similar between groups, IBS patients had more severe comorbid depressive and anxiety symptoms compared to IBD patients. Appropriate assessment and treatment of depressive and anxiety symptoms in these patient groups should be implemented.

Comparison of geographic distributions of Irritable Bowel Syndrome with Inflammatory Bowel Disease fail to support common evolutionary roots: Irritable Bowel Syndrome and Inflammatory Bowel Diseases are not related by evolution

Irritable Bowel Syndrome (IBS) shares overlapping symptoms and some features of pathogenesis with Inflammatory Bowel Diseases (IBD: Crohn's disease [CD], and Ulcerative Colitis [UC]). Geographic markers such as latitude/sunshine and more recently lactase population distributions are found to be correlated with IBD. As a result of clinical and pathogenic similarities between the 2 conditions, some authorities questioned whether a connection exists between them. We compare IBS directly with IBD, and indirectly with geographic markers associated with IBD, in order to evaluate possible evolutionary links between IBS and IBD. Similar correlations may link IBS as a precursor to IBD and possibly other conditions which are geographically connected with IBD. Data from four systematic reviews on IBD incidence and prevalence, IBS prevalence, and lactase distributions were included. Pearson's correlations were used for comparisons, with IBD values log-transformed because of skewed distribution. The articles provided 18-28 complete set of national data. Direct comparison between IBS and IBD showed no significant correlations (r = -0.14, r = -0.06 for CD and UC prevalence, r = -0.10 for CD incidence). Indirect comparisons also failed to show correlations of IBS with lactase distributions (r = -0.17), sunshine (r = -0.2) or latitude (r = 0.097); however, there was significant correlation between lactase distributions and CD incidence (r = -0.84), prevalence (r = -0.55) and UC prevalence (r = -0.59). Both sunshine (r= -0.53) and latitude (r = 0.58) are also significantly related to CD incidence. It is concluded that IBS and IBD do not follow similar global geographic patterns. This suggests a lack of an evolutionary genetic background coincident with emergence of lactase persistence. As well, vitamin D has no obvious impact on development of IBS. Similarities with IBD may result from sub groups (not yet identified) within the current Rome criteria of IBS. Alternatively limited intestinal gut-brain responses to host microbial interactions may result in similar overlap features in both.

Individual differences in stress vulnerability: The role of gut pathobionts in stress-induced colitis

Chronic subordinate colony housing (CSC), an established mouse model for chronic psychosocial stress, promotes a microbial signature of gut inflammation, characterized by expansion of Proteobacteria, specifically Helicobacter spp., in association with colitis development. However, whether the presence of Helicobacter spp. during CSC is critically required for colitis development is unknown. Notably, during previous CSC studies performed at Regensburg University (University 1), male specific-pathogen-free (SPF) CSC mice lived in continuous subordination to a physically present and Helicobacter spp.-positive resident. Therefore, it is likely that CSC mice were colonized, during the CSC procedure, with Helicobacter spp. originating from the dominant resident. In the present study we show that employing SPF CSC mice and Helicobacter spp.-free SPF residents at Ulm University (University 2), results in physiological responses that are typical of chronic psychosocial stress, including increased adrenal and decreased thymus weights, decreased adrenal in vitro adrenocorticotropic hormone (ACTH) responsiveness, and increased anxiety-related behavior. However, in contrast to previous studies that used Helicobacter spp.-positive resident mice, use of Helicobacter spp.-negative resident mice failed to induce spontaneous colitis in SPF CSC mice. Consistent with the hypothesis that the latter is due to a lack of Helicobacter spp. transmission from dominant residents to subordinate mice during the CSC procedure, colonization of SPF residents with Helicobacter typhlonius at University 2, prior to the start of the CSC model, rescued the colitis-inducing potential of CSC exposure. Furthermore, using SPF CSC mice and H. typhlonius-free SPF residents at University 1 prevented CSC-induced colitis. In summary, our data support the hypothesis that the presence or absence of exposure to certain pathobionts contributes to individual variability in susceptibility to stress-/trauma-associated pathologies and to reproducibility of stress-related outcomes between laboratories.

An 18-month study of the effects of IBD symptomatology and emotion regulation on depressed mood

PURPOSE

Depressive symptomatology in IBD patients is known to predict disease activity, which, in turn, can increase depressive symptoms in perpetuating a cycle between depression and IBD symptomatology. The mechanisms that contribute to the relationship between disease activity and depressive symptoms are not clearly investigated yet. Since emotion regulation has been considered particularly relevant to define the impact of adverse experiences on different outcomes, the current study aimed to examine the longitudinal influence of two maladaptive emotion regulation processes, cognitive fusion and brooding, on the association between disease activity and depressed mood.

METHODS

This study was conducted over an 18-month period, using a sample of 116 IBD patients that completed self-report validated measures in three different waves. Correlation analyses and cross-lagged panel models were performed.

RESULTS

The main result from this study discovered that the experience of IBD symptomatology at baseline, although positively linked to the manifestation of depressed mood 18 months later (r = 0.25; p < 0.01), does not directly predict depressive symptoms. This relationship is rather indirect, as it is explained by the engagement in cognitive fusion (p = 0.028) and brooding (p = 0.017). These maladaptive emotion regulation processes, that were revealed to be consistent over time, link IBD symptoms with subsequent depressed mood.

CONCLUSIONS

These findings indicate that clinicians should be aware of the emotion regulation processes patients tend to use to handle difficult experiences. The inclusion of psychological assessments and interventions in the healthcare of IBD patients should be seriously considered. Further implications are discussed.

The mucosal immune system: master regulator of bidirectional gut-brain communications

Communication between the brain and gut is not one-way, but a bidirectional highway whereby reciprocal signals between the two organ systems are exchanged to coordinate function. The messengers of this complex dialogue include neural, metabolic, endocrine and immune mediators responsive to diverse environmental cues, including nutrients and components of the intestinal microbiota (microbiota-gut-brain axis). We are now starting to understand how perturbation of these systems affects transition between health and disease. The pathological repercussions of disordered gut-brain dialogue are probably especially pertinent in functional gastrointestinal diseases, including IBS and functional dyspepsia. New insights into these pathways might lead to novel treatment strategies in these common gastrointestinal diseases. In this Review, we consider the role of the immune system as the gatekeeper and master regulator of brain-gut and gut-brain communications. Although adaptive immunity (T cells in particular) participates in this process, there is an emerging role for cells of the innate immune compartment (including innate lymphoid cells and cells of the mononuclear phagocyte system). We will also consider how these key immune cells interact with the specific components of the enteric and central nervous systems, and rapidly respond to environmental variables, including the microbiota, to alter gut homeostasis.

Health-related quality of life, work productivity, and indirect costs among patients with irritable bowel syndrome with diarrhea

Background

Irritable bowel syndrome (IBS) affects 10–15% of adults in the US, and is associated with significant impairment in health-related quality of life (HRQoL); however, information specific to the diarrhea subtype (IBS-D) is lacking. We assessed the impact of IBS-D on HRQoL, work productivity, and daily activities, and the associated indirect costs, among a sample of the US population.

Methods

Respondents (≥18 years) from the 2012 US National Health and Wellness Survey who reported an IBS-D diagnosis by a physician or symptoms consistent with Rome II criteria for IBS-D were identified as having IBS-D. Controls included respondents without IBS-D or inflammatory bowel disease. HRQoL was assessed via the Short Form 36 Health Survey version 2 questionnaire and summarized into Mental and Physical Component Summary (MCS; PCS) scores and a Short Form-6 dimension (SF-6D) utility score. Work and activity impairment were assessed via the Work Productivity and Activity Impairment Questionnaire: General Health version (WPAI:GH), which measures absenteeism, presenteeism, overall work productivity loss, and daily activity impairment. Indirect costs were calculated using unit cost data from the Bureau of Labor Statistics and variables from the WPAI:GH. Generalized linear models were used to examine differences in health outcomes between respondents with IBS-D and controls, controlling for demographic and health characteristics.

Results

In total, 66,491 respondents (1102 IBS-D; 65,389 controls) were analyzed. Mean age was 48.7 years; 50% were female. Compared with controls, the IBS-D cohort reported significantly lower HRQoL (mean MCS: 45.16 vs. 49.48; p < 0.001; mean PCS: 47.29 vs. 50.67; p < 0.001; mean SF-6D: 0.677 vs. 0.741; p < 0.001) and greater absenteeism (5.1% vs. 2.9%; p = 0.004), presenteeism (17.9% vs. 11.3%; p < 0.001), overall work productivity loss (20.7% vs. 13.2%; p < 0.001), and activity impairment (29.6% vs. 18.9%; p < 0.001). Respondents with IBS-D also incurred an estimated $2486 more in indirect costs ($7008 vs. $4522; p < 0.001).

Conclusions

Compared with controls, IBS-D is associated with significantly lower HRQoL, greater impairments in work and daily activities, and higher indirect costs, imposing a substantial burden on patients and employers. These findings suggest a significant unmet need exists for effective IBS-D treatments.

Pilot Study of Functional Magnetic Resonance Imaging Responses to Somatic Pain Stimuli in Youth With Functional and Inflammatory Gastrointestinal Disease

BACKGROUND

Brain-gut axis signaling modifies gastrointestinal symptomatology. Altered neural processing of intestinal pain signals involves interoceptive brain regions in adults with functional and inflammatory gastrointestinal disorders. Although these disorders frequently present in childhood, there are no published studies in youth. We determined whether neural processing of somatic pain stimuli differs in adolescents and young adults (AYA) with irritable bowel syndrome (IBS) and inflammatory bowel disease (IBD), as compared to healthy controls (HC).

METHODS

IBS and IBD AYA (16-20 years) underwent anticipated and thermal pain stimuli of low and high intensity on their forearm and simultaneous blood oxygen level-dependent functional magnetic resonance imaging. Data from adult HC were used for comparison. Subjects answered surveys evaluating alexithymia, anxiety, depression, and pain catastrophizing. Group data were compared using linear mixed effects and analysis of variance.

RESULTS

Study groups were similar by sex but not age. Significant group by pain condition interactions were observed in interoceptive brain regions during pain anticipation, and within perceptual brain regions during perceived pain. Higher activation within interoceptive brain regions during anticipated pain was observed in IBS compared with IBD and HC subjects. IBD patients demonstrated increased activation in perceptual brain regions during experienced pain as compared to IBS and HC.

CONCLUSIONS

IBS and IBD AYA demonstrate altered neural processing of somatic pain compared with each other and with HC. Our results suggest that neuromodulatory interventions targeting interoceptive brain circuits in IBS and perceptual brain regions in IBD may be effective.

Controversies Revisited: A Systematic Review of the Comorbidity of Depression and Anxiety with Inflammatory Bowel Diseases

BACKGROUND

Although mental health concerns are known to occur commonly for those with inflammatory bowel diseases (IBD), the nature of this comorbid relationship has not been systematically reviewed to date. A review in 2007 identified 5 controversies regarding anxiety/depression rates and various comparators between and within IBD. We aimed to systematically analyze and critique the current evidence regarding this comorbidity, providing an update to the 5 controversies.

METHODS

Ebscohost Medline, CINAHL, Embase, and PsychINFO were searched between 2005 and 2014 using systematic review methodology. Controlled quantitative studies examining either symptoms or diagnoses of anxiety and depression in IBD were included in the review, with study quality assessed using a scale developed a priori to evaluate observational research.

RESULTS

(1) IBD versus healthy controls (pooled mean proportions) (n = 13 studies): anxiety 19.1% versus 9.6%, depression 21.2% versus 13.4%; (2) IBD inactive versus IBD active disease (n = 26): anxiety 28.2% versus 66.4%, depression 19.9% versus 34.7%; (3) ulcerative colitis versus Crohn's disease (n = 28): anxiety 31% versus 37%, depression 22% versus 24.4%; (4) IBD versus other chronic medical conditions (n = 17): anxiety 41.9% versus 48.2%, depression 14.5% versus 28.4%; (5) onset of anxiety/depression before or after IBD onset (n = 2): adults more likely to develop anxiety/depression before IBD onset, but a substantial proportion develops depression after onset; an increased risk for children of developing anxiety/depression after IBD onset.

CONCLUSIONS

The high rates of anxiety and depression for those with IBD, particularly when disease is active, warrant a systemic approach to screening and treatment.

Behavioral despair associated with a mouse model of Crohn's disease: Role of nitric oxide pathway

Crohn's disease (CD) is associated with increased psychiatric co-morbidities. Nitric oxide (NO) is implicated in inflammation and tissue injury in CD, and it may also play a central role in pathogenesis of the accompanying behavioral despair. This study investigated the role of the NO pathway in behavioral despair associated with a mouse model of CD. Colitis was induced by intrarectal (i.r.) injection of 2,4,6-trinitrobenzenesulfonic acid (10mg TNBS in 50% ethanol). Forced swimming test (FST), pharmacological studies and tissues collection were performed 72 h following TNBS administration. To address a possible inflammatory origin for the behavioral despair following colitis induction, tumor necrosis factor-alpha (TNF-α) level was measured in both the hippocampal and colonic tissue samples. In parallel, hippocampal inducible nitric oxide synthase (iNOS) and nitrite level were evaluated. Pharmacological studies targeting the NO pathway were performed 30-60 min before behavioral test. Colitis was confirmed by increased colonic TNF-α level and microscopic score. Colitic mice demonstrated a significantly higher immobility time in the FST associated to a significant increase of hippocampal TNF-α, iNOS expression and nitrite content. Acute NOS inhibition using either Nω-nitro-l-arginine methyl ester (a non-specific NOS inhibitor) or aminoguanidine hydrochloride (a specific iNOS inhibitor) decreased the immobility time in colitic groups. Moreover, acute treatment with both NOS inhibitors decreased the TNF-α level and nitrite content in the hippocampal samples. This study suggests that the NO pathway may be involved in the behavioral effects in the mouse TNBS model of CD. These findings endow new insights into the gut-brain communication during the development of colonic inflammation, which may ultimately lead to improved therapeutic strategies to combat behavior changes associated with gastrointestinal disorders.

Robust Association Between Inflammatory Bowel Disease and Generalized Anxiety Disorder: Findings from a Nationally Representative Canadian Study

BACKGROUND

Although the link between inflammatory bowel diseases (IBD) and depression is well accepted, less is known about the relationship between IBD and anxiety disorders and factors associated with anxiety among those with IBD.

METHODS

Data were derived from the nationally representative 2012 Canadian Community Health Survey-Mental Health. The survey response rate was 68.9%. Two sets of analyses were undertaken. First, a series of logistic regression analyses were used to estimate the odd ratios of generalized anxiety disorder among those with IBD compared with those without (n = 22,522). The fully adjusted model controlled for sociodemographics, depression, substance abuse/dependence, pain, and adverse childhood experiences. Second, among those with IBD (n = 269), significant correlates of generalized anxiety disorder were identified using logistic regression. The presence of generalized anxiety disorder was determined using the WHO-CIDI lifetime criteria, and IBD was assessed by a self-reported health professional diagnosis.

RESULTS

Individuals with IBD had over twice the odds of anxiety compared with those without IBD, even when controlling for a range of potential explanatory factors (odds ratio = 2.18; 95% confidence interval, 1.50-3.16). Controlling for chronic pain and childhood adversities attenuate the relationship the most. Among those with IBD, a history of childhood sexual abuse, female gender, and chronic pain are the strongest correlates of anxiety. Those with Crohn's and ulcerative colitis were equally vulnerable to generalized anxiety disorder.

CONCLUSIONS

Our findings show that IBD is robustly related to generalized anxiety disorder. Health care professionals should be aware of the increased prevalence of generalized anxiety disorder among their patients with IBD, particularly women, those in chronic pain, and those with a history of childhood sexual abuse.

Fecal Calprotectin and serum chromogranin A as potential biomarkers of irritable bowel syndrome symptom severity

Irritable bowel syndrome (IBS) is a disorder of the lower gastrointestinal (GI) tract, which manifests as abdominal pain and/or discomfort accompanied by altered bowel function, in the absence of structural pathology. The onset and precipitation of IBS is the result of an interaction among several factors, including psychological distress, altered GI sensation and processing of sensory information as well as GI inflammation. These factors have varying contributions to disorder etiology in different patients, and in line with that, there is now emerging evidence about a low-grade inflammation in a subgroup of IBS patients. Because IBS diagnosis is based on the ROME III criteria, with the exclusion of structural pathology, patients are often exposed to numerous invasive and unpleasant tests. In order to decrease the cost of repeated testing, while simultaneously alleviating patients' anxiety, research should be aimed at detecting cost-effective biomarkers. We hypothesize chromogranin A (CgA) and fecal Calprotectin (FC) could be used to eliminate possible organic causes of IBS symptoms. Also, we hypothesize FC could be helpful in detecting IBS patients with low-grade inflammation. Forty-eight outpatients with IBS (76% females) completed a set of psychosocial measures (HRQoL, STAI, BDI, VSI, SF-36), and their FC and CgA levels were obtained. We found elevated CgA levels in 4 patients, but CgA levels were not related to any of the psychological measures used. Elevated FC levels were found in 12 patients. FC levels significantly correlated with the physical component of health related quality of life (HRQoL) (r48=-.42, p<.01). In addition, one-way ANOVA's were performed to test possible differences in psychosocial measures depending on the patient's FC status. The analysis showed only one significant difference. Patients with the highest levels of FC had significantly lower physical component of HRQoL compared to the other two groups of patients.

Epidemiology of irritable bowel syndrome in the former communist countries from Eastern Europe: a systematic review

Background and aim

The irritable bowel syndrome (IBS) is a functional gastrointestinal disorder frequently encountered in clinical practice in Eastern Europe. Epidemiological data are diverging on this condition. Our objective was to assess the prevalence of IBS in the former communist countries from Eastern Europe (EE).

Methods

We performed a systematic review study using data from PubMed. Many languages, some having only local spreading, are spoken in EE, so we decided to look only for papers indexed in PubMed, which have at least an English summary or title. We searched PubMed using the following keywords: irritable bowel syndrome, functional digestive disorders, prevalence, EE. Only relevant studies were selected for analysis.

Results

From more than 4000 papers retrieved by this search, we identified a few papers appropriate to this survey. The spectrum of prevalence values is wide in IBS. Prevalence of IBS varies in different studies from 28% in a Croatian study, to 14% in Romania. Most studies report a higher prevalence in females. Stressful events are linked to the impairment of symptoms. Anxiety and depression are common in IBS patients, showing similar expression of functional symptoms. Quality of life is impaired. The role of abuse (physical, sexual) is not commonly investigated and when it was, the importance of this factor was revealed to be much less important than in Western Europe or North America. General practitioners seem to be well trained to recognize IBS, to make correct interpretations of the disease and to use the correct therapy. It seems that the Rome criteria are known and applied by general practitioners. Several epidemiological studies on IBS exist in most EE countries. Usually they look for self-reporting symptoms, or reports from endoscopy units. Psychosomatic approach of IBS was taken into consideration in several countries (Poland, Hungary, Romania), mainly by psychologists and psychotherapists rather than by gastroenterologists.

Conclusions

There are few epidemiological studies on the epidemiology of IBS in EE. The majority of studies used Rome criteria. Several studies used small groups of patients. Some of the smaller studies have methodological flaws. The effect of stress and psychological factors are often investigated and analyzed with different methods of different accuracy. Some doctors used knowledge gained in EE in order to disseminate or to investigate further in more economically developed countries with a higher level of health.

Inflammatory bowel disease and anxiety: links, risks, and challenges faced

Inflammatory bowel disease (IBD) causes severe physical symptoms and is also associated with psychological comorbidities. Abnormal anxiety levels are found in up to 40% of patients with IBD. Anxiety symptoms are often related to flares of IBD but may persist in times of remission. Detection of anxiety disorder (AD) in patients with IBD can be challenging. Patients with anxiety may also exhibit symptoms in keeping with functional gastrointestinal disorders (FGID). Evidence for the effectiveness of pharmacological and psychological therapies for anxiety stems from patients without IBD. Studies in patients with IBD have either been small or shown negative results. In light of this, a combined approach involving IBD physicians to improve disease control and psychologists or psychiatrists to treat anxiety is advised. This review examines the evidence of anxiety issues in IBD with a focus on extent of the problem, risk factors for anxiety, and the effectiveness of interventions.

Zinc in gut-brain interaction in autism and neurological disorders

A growing amount of research indicates that abnormalities in the gastrointestinal (GI) system during development might be a common factor in multiple neurological disorders and might be responsible for some of the shared comorbidities seen among these diseases. For example, many patients with Autism Spectrum Disorder (ASD) have symptoms associated with GI disorders. Maternal zinc status may be an important factor given the multifaceted effect of zinc on gut development and morphology in the offspring. Zinc status influences and is influenced by multiple factors and an interdependence of prenatal and early life stress, immune system abnormalities, impaired GI functions, and zinc deficiency can be hypothesized. In line with this, systemic inflammatory events and prenatal stress have been reported to increase the risk for ASD. Thus, here, we will review the current literature on the role of zinc in gut formation, a possible link between gut and brain development in ASD and other neurological disorders with shared comorbidities, and tie in possible effects on the immune system. Based on these data, we present a novel model outlining how alterations in the maternal zinc status might pathologically impact the offspring leading to impairments in brain functions later in life.

Relationship between vagal tone, cortisol, TNF-alpha, epinephrine and negative affects in Crohn's disease and irritable bowel syndrome

Crohn's disease (CD) and irritable bowel syndrome (IBS) involve brain-gut dysfunctions where vagus nerve is an important component. The aim of this work was to study the association between vagal tone and markers of stress and inflammation in patients with CD or IBS compared to healthy subjects (controls). The study was performed in 73 subjects (26 controls, 21 CD in remission and 26 IBS patients). The day prior to the experiment, salivary cortisol was measured at 8:00 AM and 10:00 PM. The day of the experiment, subjects completed questionnaires for anxiety (STAI) and depressive symptoms (CES-D). After 30 min of rest, ECG was recorded for heart rate variability (HRV) analysis. Plasma cortisol, epinephrine, norepinephrine, TNF-alpha and IL-6 were measured in blood samples taken at the end of ECG recording. Compared with controls, CD and IBS patients had higher scores of state-anxiety and depressive symptomatology. A subgroup classification based on HRV-normalized high frequency band (HFnu) as a marker of vagal tone, showed that control subjects with high vagal tone had significantly lower evening salivary cortisol levels than subjects with low vagal tone. Such an effect was not observed in CD and IBS patients. Moreover, an inverse association (r =  -0.48; p<0.05) was observed between the vagal tone and TNF-alpha level in CD patients exclusively. In contrast, in IBS patients, vagal tone was inversely correlated with plasma epinephrine (r =  -0.39; p<0.05). No relationship was observed between vagal tone and IL-6, norepinephrine or negative affects (anxiety and depressive symptomatology) in any group. In conclusion, these data argue for an imbalance between the hypothalamus-pituitary-adrenal axis and the vagal tone in CD and IBS patients. Furthermore, they highlight the specific homeostatic link between vagal tone and TNF-alpha in CD and epinephrine in IBS and argue for the relevance of vagus nerve reinforcement interventions in those diseases.

The effects of cognitive behavioral therapy in female nursing students with irritable bowel syndrome: a randomized trial

BACKGROUND

Irritable bowel syndrome (IBS) is highly prevalent in young women under stressful conditions. Cognitive behavioral therapy (CBT) has been known to be effective in treating IBS.

AIMS

This study aimed to evaluate the clinical outcomes of CBT in female nursing students with IBS. The primary outcome measure of the study was the Bowel Symptom Severity Scale-IBS version.

PATIENTS AND METHODS

Ninety diagnosed participants were randomized to each group in a randomized pretest-post-test control group design. The experimental group received an 8-week CBT intervention, and the control group received general information on IBS. Bowel symptom severity, dysfunctional attitudes, and IBS-quality of life were assessed at baseline and after 8, 16, and 24 weeks. Six experimental and eight control participants withdrew during the study because of various reasons.

RESULTS

Significant effects were found for bowel symptom severity (frequency: P<0.001; distress: P<0.001; disability: P<0.001) between the experimental (n=39) and the control (n=37) groups. The overall IBS-quality of life improved over time in the CBT group (P<0.001). The CBT also showed the alleviation of dysphoria (P=0.010), interference with activity (P=0.031), and health worry (P=0.009), and the improvement of body image (P=0.008) and relationships (P=0.041) compared with the control group.

CONCLUSION

CBT proved to be an effective intervention for improving the clinical states of IBS in young female nursing students.

Psychotherapy for inflammatory bowel disease: a review and update

BACKGROUND

Psychotherapy may be a useful intervention for inflammatory bowel disease (IBD) patients. We systematically reviewed all randomized controlled trials that have been performed in psychotherapy for inflammatory bowel disease patients.

METHODS

Systematic searches were undertaken on 1 and 8 March, 2012 of studies of psychotherapy for IBD.

RESULTS

Eighteen studies (19 papers) were included in this review. Psychotherapy was found to have minimal effect on measures of anxiety, depression, QOL and disease progression although shows promise in reducing pain, fatigue, relapse rate and hospitalisation, and improving medication adherence. It may also be cost effective.

CONCLUSIONS

The effects of psychotherapy on IBD is mixed: future studies should determine whether patient screening or measuring different dependent variables improves outcomes and whether particular psychotherapies are superior over others.

Correlation between psychological factors and irritable bowel syndrome

AIM: To investigate the incidence of anxiety and depression and factors associated with the occurrence of anxiety and depression in patients with irritable bowel syndrome (IBS) to provide a theoretical basis for the use of anti-anxiety/depression and psychological treatments in IBS patients with psychological abnormalities.

METHODS: Sixty patients with IBS treated from December 2010 to December 2011 in Department of Gastroenterology of the First Affiliated Hospital of Kunming Medical University and 60 healthy controls were included in this study. The patients were assessed using the ZUNG self-rating anxiety scale, ZUNG self-rating depression scale, life event scale and social support rating scale. All scores were compared using statistical methods.

RESULTS: The incidences of anxiety and depression were significantly higher in IBS patients than in healthy controls (P < 0.05, P < 0.01). The self-rating anxiety scale and self-rating depression scale scores differed significantly between IBS patients and healthy controls (both P < 0.01). Although there was no significant difference in positive event scores and social support total scores between IBS patients and healthy controls (both P > 0.05), a statistical significance was noted in negative event score between the two groups (P < 0.01).

CONCLUSION: The incidences of anxiety and depression are significantly higher in IBS patients than in normal controls. Negative life events have an important mental impact on IBS patients. Life events and social support are closely related to psychological changes in IBS patients. IBS patients' psychological state should be monitored in clinical practice, and appropriate interventions should be given if anxiety and depression develop in these patients.

Anxiety in close relationships is higher and self-esteem lower in patients with irritable bowel syndrome compared to patients with inflammatory bowel disease

BACKGROUND

Previous research has suggested an interaction between personality factors and inflammatory bowel disease (IBD) as well as irritable bowel syndrome (IBS). We therefore aimed to elucidate differences in psychological and coping functioning between patients with IBD and IBS, and to assess the relationship of disease activity with these functions.

METHODS

Seventy-four patients with IBD (mean age 43±17 years, range 18-82 years) and 81 patients with IBS (mean age 37±12 years, range 21-66 years) completed the questionnaires; Rosenberg Self-Esteem Scale, Toronto Alexithymia, Experiences in Close Relationships, and Sense of Coherence. Disease activity was evaluated either by the Harvey-Bradshaw index, the Simple Clinical Colitis Activity Index, or the Visual Analogue Scale for Irritable Bowel Syndrome.

RESULTS

The study revealed that patients with IBS had higher degree of anxiety in close relationships than patients with IBD (p=0.003), and lower self-esteem (p=0.001). No other statistical differences between the whole groups IBS and IBD or between subgroups were seen.

CONCLUSIONS

The fact that patients with IBS seem to have higher levels of anxiety in relationships and lower self-esteem could influence the way the patient deal with the disease and how the communication with health care professionals works out. A higher awareness of the importance of past negative life events should be taken into consideration. Whether the disease or the personal traits are the primary event should be addressed in future research.

Cognitive functioning and depressive symptoms in adolescents with inflammatory bowel disease

AIM: To investigate cognitive functioning and depressive symptoms in adolescents with inflammatory bowel disease (IBD).

METHODS: A neuropsychological test battery, including subtests of the Wechsler Adult Intelligence Scale-Revised and III, Wechsler Memory Scale-Revised, California Verbal Learning Test (CVLT), Stroop Color-Word Test, and Trail Making Test, which assessed verbal and visual short- and long-term memory, processing speed, logical reasoning, verbal intelligence, attention, and executive functioning, was administered to 13- to 19-year-old patients with IBD (n = 34; active disease n = 20). Depressive symptoms were measured with the Beck Depression Inventory. The findings were compared with peers with non-acute juvenile idiopathic arthritis (JIA; n = 23). Patients with coexisting psychiatric disorders were excluded.

RESULTS: The IBD group, especially patients in the acute phase, made more perseverative errors in the CVLT test that assessed verbal memory than the JIA group (6.0 ± 4.3 vs 3.3 ± 2.9, P < 0.01), but no other differences between the IBD and JIA groups were observed in the neuropsychological tests. The difference was close to statistical significance, even when glucocorticoid medication was controlled for (P < 0.052). The IBD group had more depressive symptoms than the JIA group (7.9 ± 7.6 vs 4.0 ± 4.0, P < 0.05). Approximately one third of the IBD group had at least mild depressive symptoms, and those with acute illness had the highest scores. However, depressive symptoms were not related to the difference in the verbal memory test (perseverative errors in the CVLT) between the IBD and JIA groups.

CONCLUSION: Adolescents with acute IBD may have mild verbal memory problems but no major cognitive deficits compared to peers with JIA.

Mood disorders in inflammatory bowel disease: relation to diagnosis, disease activity, perceived stress, and other factors

BACKGROUND

Anxiety and depression are common in patients with inflammatory bowel disease (IBD); however, the factors associated with mood disorders in patients with ulcerative colitis (UC) and Crohn's disease (CD) are poorly defined.

METHODS

In all, 103 patients with UC, 101 with CD, and 124 healthy controls completed the Hospital Anxiety and Depression Scale (HADS). Disease activity was defined both from symptom scores and in UC endoscopically, and in CD by fecal calprotectin and/or serum C-reactive protein. Multivariate regression analyses were used to identify factors associated with anxiety and depression.

RESULTS

In both UC and CD, anxiety (HADS-A) and depression (HADS-D) scores were higher than in controls (HADS-A: 8.5 ± 4.1 [mean ± SD], 8.6 ± 3.9, 3.2 ± 1.8, P < 0.001; and HADS-D: 4.1 ± 3.3, 4.7 ± 3.3, 1.7 ± 1.4, P < 0.001, respectively). There were no differences in the prevalence of mild, moderate, and severe anxiety and depression in UC and CD. In UC, anxiety scores were associated with perceived stress and a new diagnosis of IBD; depression was associated with stress, inpatient status, and active disease. In CD, anxiety was associated with perceived stress, abdominal pain, and lower socioeconomic status, and depression with perceived stress and increasing age.

CONCLUSIONS

Anxiety and depression are common in IBD. Perceived stress is associated with mood disturbances in both UC and CD, but the other associated factors differ in the two diseases. Gastroenterologists should look for mood disorders in IBD and consider stress management and psychotherapy in affected patients.

Do antidepressants influence the disease course in inflammatory bowel disease? A retrospective case-matched observational study

BACKGROUND

Depression, like adverse events and psychological stress, can trigger relapse in inflammatory bowel disease (IBD); however, the effects of psychoactive drugs on disease course are unclear.

METHODS

Using retrospective electronic case note review, after exclusion of five patients on low-dose tricyclic antidepressants we compared the course of IBD in 29 patients (14 ulcerative colitis and 15 Crohn's disease), during the years before (year 1) and after (year 2) they were started on an antidepressant for a concomitant mood disorder to that of controls matched for age, sex, disease type, medication at baseline, and relapse rate in year 1.

RESULTS

Patients had fewer relapses and courses of steroids in the year after starting an antidepressant than in the year before (1 [0-4] (median [range]) vs. 0 [0-4], P = 0.002; 1 [0-3] vs. 0 [0-4], P < 0.001, respectively); the controls showed no changes between years 1 and 2 in relapses (1 [0-4] vs. 1 [0-3], respectively) or courses of steroids (1 [0-2] vs. 0 [0-3]). Although there were no differences in the use of other relapse-related medications, outpatient attendances, or hospital admissions, the number of endoscopies fell significantly in the antidepressant group in year 2 compared with year 1 (P < 0.01). No such changes were seen in the controls.

CONCLUSIONS

Antidepressants, when used to treat concomitant mood disorders in IBD, seem to reduce relapse rates, use of steroids, and endoscopies in the year after their introduction. These results suggest the need for a prospective controlled trial to evaluate their effects on disease course in patients with IBD.

Psychological issues in inflammatory bowel disease: an overview

Inflammatory bowel disease (IBD) including Crohn's disease (CD) and ulcerative colitis (UC) is a chronic and disabling disease with unknown etiology. There have been some controversies regarding the role of psychological factors in the course of IBD. The purpose of this paper is to review that role. First the evidence on role of stress is reviewed focusing on perceived stress and patients' beliefs about it in triggering or exacerbating the course of IBD. The possible mechanisms by which stress could be translated into IBD symptoms, including changes in motor, sensory and secretory gastrointestinal function, increase intestinal permeability, and changes in the immune system are, then reviewed. The role of patients' concerns about psychological distress and their adjustment to disease, poor coping strategies, and some personality traits that are commonly associated with these diseases are introduced. The prevalence rate, the timing of onset, and the impact of anxiety and depression on health-related quality of life are then reviewed. Finally issues about illness behavior and the necessity of integrating psychological interventions with conventional treatment protocols are explained.

Personality and fatigue perception in a sample of IBD outpatients in remission: a preliminary study

BACKGROUND AND AIMS

Fatigue is considered as a feature of IBD. Nevertheless, medical variables would partly explain this complex phenomenon. Psychological variables would be especially connected to fatigue for patients in remission. Moreover, personality is known to be linked to the fatigue of patients with CFS. This preliminary study aimed to determine if personality dimensions are linked to the perception of fatigue in IBD.

METHODS

81 IBD outpatients in remission completed the MFI (fatigue); ISI, EES (sleep disturbances); TCI-R (personality); HADS (depression and anxiety). Medical data were collected (ferritin, C-reactive protein, number of flare-ups, number of hospitalizations, duration of the disease and surgical sequelae).

RESULTS

With the exception of surgical sequelae, none of the medical variables was linked to fatigue perception. Anxiety and sleep disturbances were the most continuously connected to fatigue perception. Significant relationships were observed between personality categorization on Persistence, Self-Directness and the level of fatigue.

CONCLUSION

In order to improve vitality in IBD patients in remission, identification and treatment of psychological aspects should become a dimension of disease management. Fatigue should not be considered only as a direct feature of IBD.

Management of inflammatory bowel disease with vitamin D: beyond bone health

A relationship between vitamin D and several disorders, including Crohn's disease (CD), has recently been proposed. Vitamin D appears to have several important actions beyond the maintenance of bone health, including various effects on the immune system. Vitamin D deficiency has been implicated in the development of CD, and its analogues may have a role in the treatment of CD. Current research also suggests a role for vitamin D in counteracting some IBD-specific complications, including osteopenia, colorectal neoplasia, and depression. There remains a need for prospective studies to further delineate these relationships. Given current evidence and the apparent safety of vitamin D supplementation, it appears reasonable to screen for and treat vitamin D deficiency in patients with IBD.

Diagnostic profiles determined by the C.A.R.T procedure: IBD patients and fatigue

Fatigue is common in IBD. It remains a complex phenomenon with primary factors related to the disease and secondary factors (depression, anxiety, sleep disturbances, pain) whose respective importance and organization are difficult to determine. By using the C.A.R.T. procedure, the diagnostic variables of 108 IBD-related fatigue patients were determined globally, according to their sex and the clinical activity of their disease. Results underline the diversity of diagnostic profiles in which psychological variables have significant influence. It is important to consider fatigue according to profiles that best illustrate its complexity and allow for identifying better potentially remediable factors.

Evaluation of health related quality of life in irritable bowel syndrome patients

Background

Quality of life (QOL) is an important measure in the management of Irritable Bowel Syndrome (IBS). Controversy exists in the findings of studies evaluating QOL in IBS subtypes, and little is known about this issue in Iranian patients. Determination of the factors affecting QOL in IBS patients may influence treatment outcomes. The aims of this study are to: 1) compare QOL between subtypes in a sample of Iranian IBS patients, 2) determine the factors associated with QOL in IBS.

Methods

This cross sectional study included two hundred and fifty IBS patients with the mean age (± standard deviation) of 31.62 (± 11.93) years that were referred to outpatient gastroenterology clinic. IBS patients were diagnosed based on Rome-3 criteria by a gastroenterologist, and then they were categorized into three subtypes according to the predominant type of bowel habit. The "QOL specific for IBS", "Stait-trait anxiety inventory", and "Beck depression inventory-2" questioners were used to evaluate QOL, anxiety, and depression symptoms, respectively.

Results

The mean QOL scores in IBS mixed subtype (71.7 ± 25.57), constipation predominant subtype (80.28 ± 25.57), and diarrhea predominant subtype (76.43 ± 19.13) were not different. (P value: 0.05) In multivariate linear regression analysis, anxiety symptom scores were inversely correlated with QOL scores. [Standardized beta: -0.43, (95% confidence interval: -0.70, -0.39), P value: < 0.01]

Conclusion

It seems reasonable to manage anxiety symptoms properly in IBS patients since this might increase their QOL.

Comorbidity in inflammatory bowel disease

Patients with inflammatory bowel disease (IBD) can be affected by other unrelated diseases. These are called comorbid conditions, and can include any secondary health problem that affects a person suffering from a primary or main disease, and which is neither linked physiopathologically to the primary condition, nor is it due to the treatments used for the primary condition or to its long-term anatomical or physiological consequences. Different comorbid conditions, as well as their influence on IBD, are discussed.