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Soares, A., Carreiras, D., Veloso, B., Pereira, A., Costa, P., Moreira, H. & Trindade, I. (2026). Acceptability, perceived outcomes and underlying mechanisms of a professionally led support group intervention for women with breast cancer using a qualitative method approach. British Journal of Health Psychology, 31(3), Article ID e70107.
Åpne denne publikasjonen i ny fane eller vindu >>Acceptability, perceived outcomes and underlying mechanisms of a professionally led support group intervention for women with breast cancer using a qualitative method approach
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2026 (engelsk)Inngår i: British Journal of Health Psychology, ISSN 1359-107X, E-ISSN 2044-8287, Vol. 31, nr 3, artikkel-id e70107Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

OBJECTIVES: Breast cancer (BC) remains the most diagnosed cancer among women worldwide and its growing survivorship population faces numerous long-term physical and psychological challenges. Cancer support groups emerge as promising interventions to promote comprehensive management of the disease and survivorship needs, emotional well-being and social connection. Accordingly, this study aimed to analyse the acceptability and perceived impact of the Mind Support Group (MSG), a professionally led support group intervention designed for women with BC.

DESIGN: A qualitative methodological approach was used to collect and analyse data.

METHODS: Participants' feedback data were collected through a guided feedback discussion during the MSG final session and analysed using content and thematic analysis.

RESULTS: The sample comprised 22 women diagnosed with BC (stages I-III). Findings showed high acceptability, with participants expressing satisfaction with several aspects of the intervention: interpersonal processes, content, group composition and perceived outcomes. Suggestions for improvement focused exclusively on the intervention dose (e.g., earlier access) and format (e.g., in-person delivery). Mechanisms of change and perceived outcomes also emerged from participants' feedback. Through social (e.g., shared information and experience), behavioural (e.g., self-disclosure) and psychological (e.g., emotional tension release) mechanisms, the MSG appeared to facilitate shifts toward more adaptive coping strategies, personal growth, a reduction in perceived isolation and alienation, and improved communication and self-management skills.

CONCLUSIONS: These findings suggest that the MSG may serve as a valuable complement to medical treatment or, at minimum, inform the design of more comprehensive cancer care interventions integrating psychosocial support across the illness trajectory.

TRIAL REGISTRATION: NCT05642897; NCT06212414.

sted, utgiver, år, opplag, sider
John Wiley & Sons, 2026
Emneord
breast cancer, psychological intervention, psycho‐oncology, support group
HSV kategori
Identifikatorer
urn:nbn:se:oru:diva-130910 (URN)10.1111/bjhp.70107 (DOI)001883479800009 ()42665917 (PubMedID)
Tilgjengelig fra: 2026-08-31 Laget: 2026-08-31 Sist oppdatert: 2026-10-02bibliografisk kontrollert
Blomsten, A., Trindade, I. A., Nybacka, S., Melchior, C., Algera, J. P., Weznaver, C., . . . Simrén, M. (2026). Avoidant/restrictive eating in people with and without bowel symptoms in the general population: Prevalence, Clinical Profile and Associated Factors. American Journal of Gastroenterology, 121(6), 1473-1483
Åpne denne publikasjonen i ny fane eller vindu >>Avoidant/restrictive eating in people with and without bowel symptoms in the general population: Prevalence, Clinical Profile and Associated Factors
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2026 (engelsk)Inngår i: American Journal of Gastroenterology, ISSN 0002-9270, E-ISSN 1572-0241, Vol. 121, nr 6, s. 1473-1483Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

INTRODUCTION: We aimed to investigate the prevalence of avoidant/restrictive eating in individuals with versus without bowel symptoms in the general population, and identify factors associated with avoidant/restrictive eating.

METHODS: In this Swedish population-based internet health survey, we included individuals with at least one bowel symptom used to diagnose a functional bowel disorder according to the Rome IV criteria, and an age- and sex-matched control group without bowel symptoms. Cutoffs for the Nine-Item avoidant/restrictive food intake disorder screen (NIAS) was used to determine the prevalence of avoidant/restrictive eating. Demographics and clinical characteristics were assessed using validated questionnaires, and independent factors associated with avoidant/restrictive eating were determined by hierarchical multiple regression analysis.

RESULTS: Avoidant/restrictive eating was more common in individuals with bowel symptoms (n=825) compared to controls (n=1806) (22.8% vs 18.2%, p<.001). Individuals with bowel symptoms with avoidant/restrictive eating were more often female, had lower body mass index, more likely to report overlapping functional dyspepsia, reported more severe bowel, psychological and somatic symptoms, shape/weight concerns, and a lower quality of life. Bowel symptom severity emerged as the strongest factor explaining the variability of avoidant/restrictive eating severity.

DISCUSSION: Avoidant/restrictive eating is common in individuals with bowel symptoms and associated with a more severe clinical profile, indicating a need to discuss eating behavior with patients. However, avoidant/restrictive eating is also common in individuals in the general population without bowel symptoms.

sted, utgiver, år, opplag, sider
Wolters Kluwer, 2026
Emneord
functional bowel disorder, general population, eating disorders, diet, avoidant/restrictive food intake disorder
HSV kategori
Identifikatorer
urn:nbn:se:oru:diva-123009 (URN)10.14309/ajg.0000000000003735 (DOI)001784350600006 ()40833462 (PubMedID)2-s2.0-105013796761 (Scopus ID)
Forskningsfinansiär
Swedish Research Council, 2021-00947Familjen Erling-Perssons StiftelseUniversity of Gothenburg
Tilgjengelig fra: 2025-08-25 Laget: 2025-08-25 Sist oppdatert: 2026-06-16bibliografisk kontrollert
Carvalho, S. A., Veloso, B., Soares Pereira, A., Soares, A., Carreiras, D., Marta-Simões, J., . . . Trindade, I. (2026). Beyond outcomes: Assessing awareness of processes change in women with breast cancer enrolled in a contextual-behavioral RCT. Journal of psychosocial oncology
Åpne denne publikasjonen i ny fane eller vindu >>Beyond outcomes: Assessing awareness of processes change in women with breast cancer enrolled in a contextual-behavioral RCT
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2026 (engelsk)Inngår i: Journal of psychosocial oncology, ISSN 0734-7332, E-ISSN 1540-7586Artikkel i tidsskrift (Fagfellevurdert) Epub ahead of print
Abstract [en]

BACKGROUND: The efficacy of Acceptance and Commitment Therapy (ACT) in improving distress and quality of life among cancer patients has been empirically shown. However, inconsistencies persist regarding measurable changes in its core processes. This study introduces and psychometrically examines a new instrument designed to address these limitations: the Awareness of Processes Post-Intervention (APPI).

METHOD: The APPI was developed to assess perceived changes in awareness of contextual-behavioral processes. Data were collected from 76 women with breast cancer participating in two RCTs comprising two interventions - an 8-session group contextual-behavioral program that integrates ACT and compassion-focused practice (Mind) and a support group.

RESULTS: Exploratory factor analyses supported a one-factor solution, demonstrating excellent internal consistency (α = 0.95). Participants in the Mind condition reported significantly higher APPI scores than those in the support group, particularly regarding awareness of the present moment and of (un)compassionate self-responding. Correlational analyses showed that higher APPI scores were associated with greater compassionate self-responding, valued action, lower psychopathology, and better quality of life at post-intervention, especially within the Mind condition.

CONCLUSIONS: These findings support the psychometric soundness and theoretical relevance of the APPI for capturing awareness of targeted processes in contextual-behavioral interventions. The APPI may enhance research on process assessment and the implementation of contextual-behavioral approaches, particularly in psycho-oncology settings.

sted, utgiver, år, opplag, sider
Routledge, 2026
Emneord
Acceptance and Commitment Therapy, Contextual–behavioral interventions, awareness, breast cancer, process assessment
HSV kategori
Identifikatorer
urn:nbn:se:oru:diva-131351 (URN)10.1080/07347332.2026.2729877 (DOI)001873586600001 ()42725781 (PubMedID)
Merknad

Funding Agencies:

The research project, entitled “Mind programme for cancer patients: A randomized controlled trial testing the programme’s cost-effectiveness and efficacy in changing psychological and biological outcomes in women with breast cancer”, and with the identifier PTDC/PSI-GER/7847/2020, is financed by the Portuguese Foundation for Science and Technology (FCT-Fundação para a Ciência e a Tecnologia, I.P./MCTES), through national funds (PIDDAC). FCT’s sole role in this research is as funder.

Tilgjengelig fra: 2026-09-15 Laget: 2026-09-15 Sist oppdatert: 2026-09-21bibliografisk kontrollert
Trindade, I., Blomsten, A., Nybacka, S., Colomier, E., Sandberg, R., Frändemark, Å., . . . Simrén, M. (2026). Implications of shame for patient reported outcomes in Bowel Disorders of Gut-Brain Interaction. Gastroenterology, 170(2), 353-364
Åpne denne publikasjonen i ny fane eller vindu >>Implications of shame for patient reported outcomes in Bowel Disorders of Gut-Brain Interaction
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2026 (engelsk)Inngår i: Gastroenterology, ISSN 0016-5085, E-ISSN 1528-0012, Vol. 170, nr 2, s. 353-364Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

BACKGROUND AND AIMS: Bowel Disorders of Gut-Brain Interaction (DGBI) are a highly stigmatized group of disorders. Even though the link between stigma and shame is overall acknowledged, few studies focusing on health-related stigma mention shame, and research on shame in Bowel DGBI is non-existent. The aim of this study was to examine the implications of shame in Bowel DGBI.

METHODS: We included two Swedish population-based samples: a Bowel DGBI sample (n=537) and a matched comparative sample without bowel symptoms (n=1881). Participants completed an online survey with validated self-report scales. A cross-sectional mediation analysis via structural equation modelling, and a moderation analysis were conducted to analyze the role of shame in the associations between bowel symptom severity and psychosocial outcomes.

RESULTS: The Bowel DGBI sample reported significantly higher levels of shame than the comparative sample. The mediation model, conducted with the Bowel DGBI sample, showed that shame was a mediator of the associations of bowel symptoms with general anxiety, depressive symptoms, QoL, and activity impairment. Gastrointestinal (GI)-specific anxiety was not associated with any outcome of this model. Moderation results showed that shame was an exacerbator of the associations of bowel symptoms with higher severity of GI-specific anxiety and depressive symptoms, and poorer quality of life.

CONCLUSIONS: Shame appears to be a particularly important emotion deriving from the experience of GI symptoms in Bowel DGBI, influencing the associations between these symptoms and important patient reported outcomes. An empathetic doctor-patient relationship and psychological therapies may be helpful for individuals with Bowel DGBI experiencing high levels of shame.

sted, utgiver, år, opplag, sider
American Gastroenterology Association Institute, 2026
Emneord
Bowel DGBI, Disorders of Gut-Brain Interaction, Psychological distress, Quality of life, Shame
HSV kategori
Identifikatorer
urn:nbn:se:oru:diva-122998 (URN)10.1053/j.gastro.2025.06.030 (DOI)001676488600001 ()40840712 (PubMedID)2-s2.0-105025579371 (Scopus ID)
Forskningsfinansiär
Swedish Research Council, 2021-00947AFA Insurance, 190087Familjen Erling-Perssons Stiftelse
Merknad

Funding Agencies:

This study was funded by grants from the Swedish Research Council (2021-00947), AFA Insurance (190087), grants from the Swedish state under the agreement between the Swedish government and the county councils, the ALF agreement (965173), and the Erling-Persson foundation.

Tilgjengelig fra: 2025-08-22 Laget: 2025-08-22 Sist oppdatert: 2026-02-11bibliografisk kontrollert
Midenfjord, I., Khadija, M., Sundelin, E., Trindade, I., Törnblom, H., Santos, J., . . . Simrén, M. (2026). Increased Disease Burden in Irritable Bowel Syndrome With Comorbid Conditions and Psychiatric Diagnoses in a Multinational European Cohort: Results From the DISCOvERIE Project. United European Gastroenterology journal, 14(1), Article ID e70157.
Åpne denne publikasjonen i ny fane eller vindu >>Increased Disease Burden in Irritable Bowel Syndrome With Comorbid Conditions and Psychiatric Diagnoses in a Multinational European Cohort: Results From the DISCOvERIE Project
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2026 (engelsk)Inngår i: United European Gastroenterology journal, ISSN 2050-6406, E-ISSN 2050-6414, Vol. 14, nr 1, artikkel-id e70157Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Background: Patients with Irritable bowel syndrome (IBS) frequently suffer from comorbid psychiatric or somatic conditions, but the association with overall GI symptom severity and disease burden in IBS has not yet been established.

Objective: This pan‐European project, the DISCOvERIE project, aimed to characterize IBS patients with and without comorbid psychiatric (anxiety, depression) and/or somatic (fibromyalgia, chronic fatigue syndrome) conditions, and to compare them with disease (psychiatric and/or somatic condition without IBS) and healthy controls to further elucidate the effect of comorbid conditions on the disease burden in IBS.

Methods: Participants from nine different European centers were included: IBS patients (Rome IV criteria) with and without comorbid conditions, disease controls, and healthy controls. The presence of comorbidities was assessed through the Mini International Neuropsychiatric Interview (MINI) for anxiety or depression or through diagnostic criteria for fibromyalgia or chronic fatigue syndrome. Validated questionnaires on IBS (IBS‐SSS), depressive (PHQ‐9), anxiety (GAD‐7) and somatic symptom severity (PHQ‐12), fibromyalgia symptoms (FIQ) and fatigue (MFI) were completed.

Results: In total, 842 participants were recruited between March 2021 and January 2023, of which 607 had IBS, 161 were disease controls and 74 were healthy controls. IBS, anxiety, depression, somatic symptoms and fatigue were more severe in IBS patients with comorbidities compared with IBS patients without comorbidities. The severity of the abovementioned symptoms all increased gradually with increasing number of comorbidities (all p < 0.001).

Conclusion: This large pan‐European study highlights the significant impact of psychiatric and somatic comorbidities in IBS, and their strong link with outcomes and disease burden. 

sted, utgiver, år, opplag, sider
John Wiley & Sons, 2026
Emneord
anxiety, chronic fatigue syndrome, depression, fibromyalgia, gastrointestinal symptoms, IBS, Irritable bowel syndrome, psychiatric diagnoses, symptom burden, symptom severity
HSV kategori
Identifikatorer
urn:nbn:se:oru:diva-126448 (URN)10.1002/ueg2.70157 (DOI)2-s2.0-105025718743 (Scopus ID)
Forskningsfinansiär
EU, Horizon 2020, 848228
Tilgjengelig fra: 2026-01-19 Laget: 2026-01-19 Sist oppdatert: 2026-01-23bibliografisk kontrollert
Albert, E., Mikhael-Moussa, H., Wuestenberghs, F., Leroi, A.-M., Netchitailo, M., Gourcerol, G., . . . Melchior, C. (2026). Insomnia, A Comorbidity to Take Into Account in the Global Management of Patients With Irritable Bowel Syndrome?. Neurogastroenterology and Motility, 38(5), Article ID e70336.
Åpne denne publikasjonen i ny fane eller vindu >>Insomnia, A Comorbidity to Take Into Account in the Global Management of Patients With Irritable Bowel Syndrome?
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2026 (engelsk)Inngår i: Neurogastroenterology and Motility, ISSN 1350-1925, E-ISSN 1365-2982, Vol. 38, nr 5, artikkel-id e70336Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Introduction: In the general population, many people are affected by both insomnia and irritable bowel syndrome (IBS). In this study, we aimed to explore the prevalence of insomnia in patients with IBS and its association with the severity of gastrointestinal and extra-intestinal symptoms.

Methods: Patients with IBS according to Rome IV criteria, referred to the Physiology Unit of Rouen University Hospital (France) between September 2022 and February 2025, who completed various validated questionnaires during their visit to assess insomnia (Insomnia Severity Index (ISI)), IBS severity (IBS-SSS), anxiety and depressive symptoms (HAD-S), quality of life (IBS-QOL), upper gastrointestinal symptom severity (PAGI-SYM), and somatic symptom severity (PHQ-15), were prospectively included in our study. Patients were considered insomniacs when their ISI score was >= 15.

Results: Among 700 patients with IBS included in our analysis, 270 (38.6%) were insomniac. The presence of insomnia was associated with more severe gastrointestinal symptoms (IBS severity, IBS-SSS, p < 0.001) and somatic symptom severity (PHQ-15, p < 0.001). The hierarchical linear regression analysis showed that the ISI score was associated with higher scores of anxiety and depressive symptoms, the presence of functional dyspepsia and fibromyalgia, and, to a lesser extent, older age and higher IBS severity scores (Adjusted R-2 = 0.265).

Discussion: Our findings suggest that in patients with IBS, insomnia is linked with psychological and somatic symptom burden, and the presence of comorbidities such as functional dyspepsia, but causality cannot be inferred. Future studies using objective sleep assessments, such as polysomnography, are needed to confirm these associations.

sted, utgiver, år, opplag, sider
John Wiley & Sons, 2026
Emneord
insomnia, irritable bowel syndrome, prevalence, symptom severity
HSV kategori
Identifikatorer
urn:nbn:se:oru:diva-128740 (URN)10.1111/nmo.70336 (DOI)001756556100001 ()42083791 (PubMedID)
Tilgjengelig fra: 2026-05-12 Laget: 2026-05-12 Sist oppdatert: 2026-05-12bibliografisk kontrollert
Martins, M., Morais, R., Mendes, F., Coelho, R., Craciun, A., Gonçalves, T. C., . . . Macedo, G. (2026). Psychological State Experienced by Gastroenterologists following Endoscopic Adverse Events: Insights from a Nationwide Cross-Sectional Study. GE Portuguese journal of gastroenterology, 33(1), 234-241
Åpne denne publikasjonen i ny fane eller vindu >>Psychological State Experienced by Gastroenterologists following Endoscopic Adverse Events: Insights from a Nationwide Cross-Sectional Study
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2026 (engelsk)Inngår i: GE Portuguese journal of gastroenterology, E-ISSN 2387-1954, Vol. 33, nr 1, s. 234-241Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

BACKGROUND: Adverse events (AEs) are unintentional patient outcomes expected in medicine, but their impact on physicians remains underexplored. OBJECTIVES: This study assessed the psychological state experienced by gastroenterologists following endoscopic AEs.

METHODS: A nationwide online survey was sent to all registered gastroenterologists (n = 709). Psychological state was assessed using validated scales assessing psychological distress (DASS-21), professional quality of life (ProQOL-5), self-compassion (SCS-12), and shame feelings (OAS2). Results are presented as mean and 95% confidence interval.

RESULTS: Seventy responded (9.87% response rate; median age 41; 41% female). Nearly all (99%) experienced AEs, most during polypectomy/mucosectomy (66%). None consulted psychological support. Stress (9.4 [7.3-11.5]), anxiety (5.1 [3.5-6.7]), and depression (5.2 [3.7-6.8]) were normal, while burnout (25.9 [24.5-27.2]) and traumatic stress (24.3 [23.0-25.5]) were moderate. Higher compassion satisfaction was associated with consultant status (41.5 vs. 37.7, p = 0.039), >10 years' experience (44.3 vs. 40.2, p = 0.032), age >50 years (41.9 vs. 39.3, p = 0.008) and those involved in legal actions (45.5 vs. 40.6; p = 0.023). Age >50 was also associated with higher stress (15.2 vs. 8.7, p = 0.023) and traumatic stress (26.3 vs. 23.8, p = 0.035). Stopping procedures after AEs was associated with higher anxiety (12.0 vs. 4.8, p = 0.026).

CONCLUSIONS: This is among the first studies to assess the psychological state of AEs on gastroenterologists. Participants showed moderate burnout and traumatic stress, but none consulted psychological support. Findings highlight the need for targeted healthcare support and further research on the emotional burden of AEs among endoscopists.

sted, utgiver, år, opplag, sider
S. Karger, 2026
Emneord
Adverse events, Healthcare profession, Psychological impact
HSV kategori
Identifikatorer
urn:nbn:se:oru:diva-125905 (URN)10.1159/000549616 (DOI)001650964100001 ()41425835 (PubMedID)2-s2.0-105026575192 (Scopus ID)
Tilgjengelig fra: 2025-12-23 Laget: 2025-12-23 Sist oppdatert: 2026-06-04bibliografisk kontrollert
Carvalho, S. A., Menezes, P., Duarte, C., Skvarc, D., Sousa e Silva, A. R., Valentim, A., . . . Castelho-Branco, M. (2026). Virtual Reality to Improve Pain Management and Mental Health in Stroke Survivors With Chronic Pain: Study Protocol for a Feasibility Randomized Controlled Trial on Virtual Reality-Acceptance and Commitment Therapy. JMIR Research Protocols, 15, Article ID e80611.
Åpne denne publikasjonen i ny fane eller vindu >>Virtual Reality to Improve Pain Management and Mental Health in Stroke Survivors With Chronic Pain: Study Protocol for a Feasibility Randomized Controlled Trial on Virtual Reality-Acceptance and Commitment Therapy
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2026 (engelsk)Inngår i: JMIR Research Protocols, E-ISSN 1929-0748, Vol. 15, artikkel-id e80611Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Background: Studies suggest that 40%-65% of stroke survivors develop chronic post-stroke pain (CPSP), which severely affects their quality of life and mental health. Empirical evidence suggests that existing treatments often fall short, underscoring the need for innovative, integrative interventions. Virtual Reality (VR) seems to provide valuable tools in stroke rehabilitation. Also, contextual-behavioural psychological approaches, such as Acceptance and Commitment Therapy (ACT), offer promising pain management and mental health resources, which seem to be feasible in VR formats. However, their combined application in CPSP remains unexplored.

Objective: This study protocol describes the VR-ACT study, which will test the feasibility and preliminary efficacy of an 8-week VR-ACT program for CPSP.

Methods: A pilot randomized controlled trial (N = 30) will compare a VR-based ACT intervention with a sham-VR control. The study will follow a mixed-methods approach. Quantitative outcomes include pain intensity, psychological symptoms, and quality of life (via self-report measures), and brain network connectivity of the Triple Network (via fMRI). Feasibility will be evaluated through adherence, engagement, and acceptability. Qualitative feedback will be collected post-intervention.

Results: The study expects that the VR-ACT program will be feasible, based on adherence, engagement, and acceptability. VR-ACT is expected to be significantly more effective than Sham VR in reducing pain, disability, and psychological symptoms, improving quality of life, and decreasing triple network brain connectivity (as measured by fMRI).

Conclusions: This trial is expected to corroborate the hypothesis that a VR-delivered ACT program is a feasible, acceptable, and potentially effective tool to support pain self-management and mental health in CPSP patients, laying the groundwork for larger, multicenter trials.

Trial Registration: ClinicalTrials.gov NCT06990646; https://clinicaltrials.gov/study/NCT06990646

sted, utgiver, år, opplag, sider
JMIR Publications, 2026
Emneord
chronic poststroke pain, virtual reality, acceptance and commitment therapy, feasibility, mixed method, study protocol
HSV kategori
Identifikatorer
urn:nbn:se:oru:diva-126447 (URN)10.2196/80611 (DOI)001686840700001 ()41650200 (PubMedID)
Merknad

Study protocol

Preprints (earlier versions) of this paper are available at https://preprints.jmir.org/preprint/80611, first published 14 Jul, 2025. 

Tilgjengelig fra: 2026-01-19 Laget: 2026-01-19 Sist oppdatert: 2026-02-23bibliografisk kontrollert
Trindade, I. A. (2026). What I did not know: a clinician's reckoning in facing possible malignancy. Journal of Poetry Therapy
Åpne denne publikasjonen i ny fane eller vindu >>What I did not know: a clinician's reckoning in facing possible malignancy
2026 (engelsk)Inngår i: Journal of Poetry Therapy, ISSN 0889-3675, E-ISSN 1567-2344Artikkel i tidsskrift (Annet (populærvitenskap, debatt, mm)) [Kunstnerisk arbeiden] Epub ahead of print
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Routledge, 2026
HSV kategori
Identifikatorer
urn:nbn:se:oru:diva-131323 (URN)10.1080/08893675.2026.2725877 (DOI)001865617300001 ()
Tilgjengelig fra: 2026-09-15 Laget: 2026-09-15 Sist oppdatert: 2026-09-16bibliografisk kontrollert
Qiu, L., Bervoets, L., Dooms, Y., Bosman, M., Keszthelyi, D., Trindade, I., . . . Van Den Houte, M. (2025). Brain mechanisms mediating patient status and stress-induced negative affect in irritable bowel syndrome: The role of comorbidities. Paper presented at Neurogastro Meeting, Queen Mary University, London, UK, September 4–6, 2025. Neurogastroenterology and Motility, 37(Suppl. 2), 118-118, Article ID NGS21850-8.
Åpne denne publikasjonen i ny fane eller vindu >>Brain mechanisms mediating patient status and stress-induced negative affect in irritable bowel syndrome: The role of comorbidities
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2025 (engelsk)Inngår i: Neurogastroenterology and Motility, ISSN 1350-1925, E-ISSN 1365-2982, Vol. 37, nr Suppl. 2, s. 118-118, artikkel-id NGS21850-8Artikkel i tidsskrift, Meeting abstract (Annet vitenskapelig) Published
Abstract [en]

Introduction: Irritable bowel syndrome (IBS) is a disorder of brain-gut interaction characterized by abdominal pain and altered bowel habits, often comorbid with anxiety, depression, chronic fatigue syndrome, and fibromyalgia. Psychosocial stress has been implicated in IBS, yet the underlying neural mechanisms and the role of comorbidities remain unclear. Therefore, we aimed to investigate (1) whether IBS patients exhibit in-creased self-reported negative affect (NA) and brain responses to stress, (2) the impact of comorbidities on these responses, and (3) the brain circuits mediating group differences in NA.

Methods: We analyzed data from 96 IBS patients in the European DISCOvERIE project, and 64 healthy controls (HCs). 54 (56.3%) patients met criteria of depression, anxiety, chronic atigue syndrome, and/or fibromyalgia. Psychological stress was induced using the Montreal Imaging Stress Test during functional magnetic resonance imaging scanning, while NA ratings were collected across time (Figure 1A). Group differences in NA were tested using mixed models (all IBS vs. HCs; IBS-comorbid vs. IBS-alone), and stress-related brain activity was compared using general linear models. Multivariate mediation models were applied to identify brain response patterns mediating group differences in NA.

Results: IBS patients reported more NA than HCs during stress (p < 0.01), driven by higher ratings from patients with comorbidities (p < 0.01; Fig 1B). The stress task induced higher brain activations in default mode network in IBS (Fig 1C), but no significant differences were found between comorbidity groups. Increased NA reporting in IBS patients vs HCs was mediated via heightened default mode network, salience network, and damp-ened central autonomic network responses (Fig 1D), and in IBS-comorbid vs. IBS-alone through altered responses in multiple somatosensory areas (Fig 1E).

Conclusions: IBS patients experienced more negative affect than HCs under stress, driven by the presence of comorbidities. The hyperactive default mode network and salience net-work, combined with hypoactive central autonomic network as mediators of case-control differences in negative affect, indicate dysregulated central stress processing in IBS patients. Comorbidities may further amplify negative affect through altered somatosensory processing.

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John Wiley & Sons, 2025
HSV kategori
Identifikatorer
urn:nbn:se:oru:diva-126172 (URN)001639936900115 ()
Konferanse
Neurogastro Meeting, Queen Mary University, London, UK, September 4–6, 2025
Tilgjengelig fra: 2026-02-19 Laget: 2026-02-19 Sist oppdatert: 2026-02-19bibliografisk kontrollert
Organisasjoner
Identifikatorer
ORCID-id: ORCID iD iconorcid.org/0000-0003-1208-2077