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Wu K, Li Y, Pan Y, Qiu J, Chen X, Fan Y, Xing Y, Zhou X. Impact of closed management on gastrointestinal function and mental health of Chinese university students during COVID-19. BMC Public Health 2023; 23:1219. [PMID: 37353824 PMCID: PMC10288672 DOI: 10.1186/s12889-023-16145-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Accepted: 06/18/2023] [Indexed: 06/25/2023] Open
Abstract
BACKGROUND The innovative closed management of universities may have influenced the physical and mental health of students during the fourth stage of the COVID-19 pandemic in China. The study aimed to assess the gastrointestinal and mental health status of students in this stage and to explore the possible risk factors and mechanisms to provide a reference for future school responses to similar stressful events. METHOD A multicenter, cross-sectional survey was administered to 598 college students from 10 Chinese universities. The study used the 7-item Generalized Anxiety Disorder Scale (GAD-7), 9-item Patient Health Questionnaire (PHQ-9), Fear of COVID-19 Scale (FCV-19 S), and the Diagnostic Tendency of Functional Bowel Disease Scale (DT-FBD) to evaluate anxiety, depression, fear of COVID-19 and likelihood of being diagnose diagnosed with functional bowel disease (FBD), respectively. RESULTS A total of 516 college students completed the questionnaire. The proportions of students with more severe anxiety, more severe depression, greater fear of COVID-19, and a greater likelihood of being diagnosed with FBD were 49.8%, 57.0%, 49%, and 49%, respectively. These symptoms were significantly and positively correlated with the frequency of irregular sleep and eating (p < 0.05). Students in high-risk areas were more likely to experience anxiety and depression than students in areas with low/medium risk (odds ratio [OR] = 1.90, 95% confidence interval [CI]: 1.12-3.24, p = 0.017; OR = 2.14, 95% CI: 1.11-4.11, p = 0.022). A high likelihood of being diagnosed with FBD was positively associated with the severity of anxiety and depression symptoms and fear of COVID-19 (all p < 0.001). Moreover, mediation analysis revealed the following pathway in college students: fear of COVID-19 → depression and anxiety → poor diet → likelihood of being diagnosed with FBD. CONCLUSION College students generally exhibited higher more severe anxiety and depression symptoms and psychological symptoms with a greater higher propensity likelihood of being to be diagnosed with FBD. Good lifestyle habits, especially adequate sleep and a regular diet, can alleviate these problems. In addition, appropriate psychological intervention is very important.
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Affiliation(s)
- Kaini Wu
- Department of Gastroenterology, Digestive Disease Hospital, The First Affiliated Hospital of Nanchang University, No. 17, Yongwaizheng Street, Nanchang, 330006, Jiangxi Province, China
| | - Yi Li
- Department of Gastroenterology, Digestive Disease Hospital, The First Affiliated Hospital of Nanchang University, No. 17, Yongwaizheng Street, Nanchang, 330006, Jiangxi Province, China
| | - Yating Pan
- Department of Gastroenterology, Digestive Disease Hospital, The First Affiliated Hospital of Nanchang University, No. 17, Yongwaizheng Street, Nanchang, 330006, Jiangxi Province, China
| | - Jianhao Qiu
- Department of Gastroenterology, Digestive Disease Hospital, The First Affiliated Hospital of Nanchang University, No. 17, Yongwaizheng Street, Nanchang, 330006, Jiangxi Province, China
| | - Xiaqin Chen
- Department of Gastroenterology, Digestive Disease Hospital, The First Affiliated Hospital of Nanchang University, No. 17, Yongwaizheng Street, Nanchang, 330006, Jiangxi Province, China
| | - Yuanping Fan
- Department of Gastroenterology, Digestive Disease Hospital, The First Affiliated Hospital of Nanchang University, No. 17, Yongwaizheng Street, Nanchang, 330006, Jiangxi Province, China
| | - Yawei Xing
- Department of Gastroenterology, Digestive Disease Hospital, The First Affiliated Hospital of Nanchang University, No. 17, Yongwaizheng Street, Nanchang, 330006, Jiangxi Province, China.
| | - Xiaodong Zhou
- Department of Gastroenterology, Digestive Disease Hospital, The First Affiliated Hospital of Nanchang University, No. 17, Yongwaizheng Street, Nanchang, 330006, Jiangxi Province, China.
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Lv Y, Wen J, Fang Y, Zhang H, Zhang J. Corticotropin-releasing factor receptor 1 (CRF-R1) antagonists: Promising agents to prevent visceral hypersensitivity in irritable bowel syndrome. Peptides 2022; 147:170705. [PMID: 34822913 DOI: 10.1016/j.peptides.2021.170705] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Revised: 11/20/2021] [Accepted: 11/22/2021] [Indexed: 11/17/2022]
Abstract
Corticotropin-releasing factor (CRF) is a 41-amino acid polypeptide that coordinates the endocrine system, autonomic nervous system, immune system, and physiological behavior. CRF is a signaling regulator in the neuro-endocrine-immune (NEI) network that mediates visceral hypersensitivity. Rodent models to simulate changes in intestinal motility similar to those reported in the irritable bowel syndrome (IBS), demonstrate that the CRF receptor 1 (CRF-R1) mediates intestinal hypersensitivity under many conditions. However, the translation of preclinical studies into clinical trials has not been successful possibly due to the lack of sufficient understanding of the multiple variants of CRF-R1 and CRF-R1 antagonists. Investigating the sites of action of central and peripheral CRF is critical for accelerating the translation from preclinical to clinical studies.
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Affiliation(s)
- Yuanxia Lv
- School of Pharmacy, North Sichuan Medical College, Nanchong City, China.
| | - Jing Wen
- School of Pharmacy, North Sichuan Medical College, Nanchong City, China.
| | - Yingying Fang
- School of Pharmacy, North Sichuan Medical College, Nanchong City, China.
| | - Haoyuan Zhang
- Department of Clinical Medicine, North Sichuan Medical College, Nanchong City, China.
| | - Jianwu Zhang
- School of Pharmacy, North Sichuan Medical College, Nanchong City, China.
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Cognitive dysfunction in ulcerative colitis patients in remission and its comparison with patients with irritable bowel syndrome and healthy controls. Indian J Gastroenterol 2021; 40:169-175. [PMID: 33417176 DOI: 10.1007/s12664-020-01122-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Accepted: 11/09/2020] [Indexed: 02/04/2023]
Abstract
BACKGROUND There is a paucity of research concerning cognitive impairments in Inflammatory bowel disease - ulcerative colitis (IBD-UC) and irritable bowel syndrome (IBS). Studies on cognitive dysfunction in patients with IBD-UC have either been small or have shown conflicting results. This study is conducted to examine the evidence of cognitive dysfunction in IBD-UC patients in remission and compare the evident cognitive deficit with IBS patients and healthy controls. METHODS This single-centre cross-sectional observational study enrolled a total of 90 participants, 29 in ulcerative colitis (UC) in remission group, 31 in IBS group and 30 in healthy control group. Assessment of cognition with the help of cognitive function tests mini-mental state examination (MMSE), Montreal Cognitive Assessment (MoCA) test and p300 was performed in all participants. RESULTS A statistically significant number of the participants in IBD-UC in remission group had MMSE and MoCA score below the lower limit of normal, in comparison to the healthy control and IBS groups. The mean peak latency of the p300 wave was statistically significantly increased in people in the IBD-UC group, in comparison to the healthy control and IBS groups. CONCLUSION Patients with IBD-UC in remission show impairments in cognitive functioning compared to the IBS and healthy control groups as assessed on cognitive function testing on MMSE, MoCA and mean peak latency of the p300 wave. This impairment in cognitive function is unlikely to be due to premorbid levels of intellectual functioning and is likely to have impact on health-related quality of life.
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Owens AP, Allen M, Ondobaka S, Friston KJ. Interoceptive inference: From computational neuroscience to clinic. Neurosci Biobehav Rev 2018; 90:174-183. [PMID: 29694845 DOI: 10.1016/j.neubiorev.2018.04.017] [Citation(s) in RCA: 86] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2017] [Revised: 02/11/2018] [Accepted: 04/16/2018] [Indexed: 12/14/2022]
Abstract
The central and autonomic nervous systems can be defined by their anatomical, functional and neurochemical characteristics, but neither functions in isolation. For example, fundamental components of autonomically mediated homeostatic processes are afferent interoceptive signals reporting the internal state of the body and efferent signals acting on interoceptive feedback assimilated by the brain. Recent predictive coding (interoceptive inference) models formulate interoception in terms of embodied predictive processes that support emotion and selfhood. We propose interoception may serve as a way to investigate holistic nervous system function and dysfunction in disorders of brain, body and behaviour. We appeal to predictive coding and (active) interoceptive inference, to describe the homeostatic functions of the central and autonomic nervous systems. We do so by (i) reviewing the active inference formulation of interoceptive and autonomic function, (ii) survey clinical applications of this formulation and (iii) describe how it offers an integrative approach to human physiology; particularly, interactions between the central and peripheral nervous systems in health and disease.
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Affiliation(s)
- Andrew P Owens
- Lab of Action & Body, Department of Psychology, Royal Holloway, University of London, Egham, Surrey, UK; Department of Brain Repair and Rehabilitation, Institute of Neurology, University College London, UK; Autonomic Unit, National Hospital Neurology and Neurosurgery, UCL NHS Trust, London, UK.
| | - Micah Allen
- Wellcome Trust Centre for Neuroimaging, University College London, UK; Institute of Cognitive Neuroscience, University College London, UK
| | - Sasha Ondobaka
- Institute of Cognitive Neuroscience, University College London, UK; Sobell Department for Motor Neuroscience and Movement Disorders, University College London, UK
| | - Karl J Friston
- Wellcome Trust Centre for Neuroimaging, University College London, UK
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Li X, Feng R, Wu H, Zhang L, Zhao L, Dai N, Yu E. Psychological characteristics and GoNogo research of patients with functional constipation. Medicine (Baltimore) 2016; 95:e5685. [PMID: 28033259 PMCID: PMC5207555 DOI: 10.1097/md.0000000000005685] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
The emotional state, psychological characteristics, cognitive function, and the relevance among above factors in patients with functional constipation (FC) are complex. This study aimed to investigate whether FC symptoms might be related to implicit processing such as psychological characteristics and emotional somatization.Thirty-five FC patients and 24 normal volunteers were recruited to collect event-related potentials (ERP) behavior and electroencephalogram data when simple digital GoNogo visual tasks were performed. Hamilton Depression Scale (HAMD-17), Hamilton Anxiety Scale (HAMA), Symptom Checklist, and Eysenck Personality Inventory (EPQ) were assessed before the ERP test.There was significant difference in average score, positive index, somatization, obsessive-compulsive disorder, anxiety, depression and psychoticism in HAMD-17, HAMA, Symptom Checklist, and extroversion or introversion and neuroticism in EPQ between the FC patients group and the normal control group (P < 0.05). There was a significant difference in the amplitude of ERP-P300 at site F4, F7, and FZ (P < 0.05).FC patients showed anxiety and depression. The asymmetric forebrain abnormal activities in the 2 hemispheres might initiate implicit automatic processing, such as somatization and obsessive-compulsive disorder, in order to cope with painful experience caused by anxiety and depression in patients with FC. Cognitive dysfunction of implicit processing might be involved in the abnormality of visual communication and information processing.
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Affiliation(s)
- Xiaoyi Li
- Department of Psychiatry and Mental Health, Tongde Hospital of Zhejiang Province
- The Mental Health Institute of Zhejiang Province
| | - Rui Feng
- Department of Psychiatry and Mental Health, Sir Run Run SHAW Hospital, Zhejiang University School of Medicine
- Sir Run Run SHAW Institute of Clinical Medicine of Zhejiang University
| | - Hao Wu
- Department of Psychiatry and Mental Health, Sir Run Run SHAW Hospital, Zhejiang University School of Medicine
- Sir Run Run SHAW Institute of Clinical Medicine of Zhejiang University
| | - Lei Zhang
- Department of Psychiatry and Mental Health, Sir Run Run SHAW Hospital, Zhejiang University School of Medicine
- Sir Run Run SHAW Institute of Clinical Medicine of Zhejiang University
| | - Lan Zhao
- Sir Run Run SHAW Institute of Clinical Medicine of Zhejiang University
- Department of Digestive System, Sir Run Run SHAW Hospital, Zhejiang University School of Medicine
| | - Ning Dai
- Sir Run Run SHAW Institute of Clinical Medicine of Zhejiang University
- Department of Digestive System, Sir Run Run SHAW Hospital, Zhejiang University School of Medicine
| | - Enyan Yu
- Department of Psychiatry, Zhejiang Provincial People's Hospital, Hangzhou, China
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Longarzo M, Quarantelli M, Aiello M, Romano M, Del Prete A, Cimminiello C, Cocozza S, Olivo G, Loguercio C, Trojano L, Grossi D. The influence of interoceptive awareness on functional connectivity in patients with irritable bowel syndrome. Brain Imaging Behav 2016; 11:1117-1128. [DOI: 10.1007/s11682-016-9595-5] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Tanaka Y, Kanazawa M, Kano M, Morishita J, Hamaguchi T, Van Oudenhove L, Ly HG, Dupont P, Tack J, Yamaguchi T, Yanai K, Tashiro M, Fukudo S. Differential Activation in Amygdala and Plasma Noradrenaline during Colorectal Distention by Administration of Corticotropin-Releasing Hormone between Healthy Individuals and Patients with Irritable Bowel Syndrome. PLoS One 2016; 11:e0157347. [PMID: 27448273 PMCID: PMC4957789 DOI: 10.1371/journal.pone.0157347] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2016] [Accepted: 05/29/2016] [Indexed: 12/11/2022] Open
Abstract
Irritable bowel syndrome (IBS) often comorbids mood and anxiety disorders. Corticotropin-releasing hormone (CRH) is a major mediator of the stress response in the brain-gut axis, but it is not clear how CRH agonists change human brain responses to interoceptive stimuli. We tested the hypothesis that brain activation in response to colorectal distention is enhanced after CRH injection in IBS patients compared to healthy controls. Brain H215O- positron emission tomography (PET) was performed in 16 male IBS patients and 16 age-matched male controls during baseline, no distention, mild and intense distention of the colorectum using barostat bag inflation. Either CRH (2 μg/kg) or saline (1:1) was then injected intravenously and the same distention protocol was repeated. Plasma adrenocorticotropic hormone (ACTH), serum cortisol and plasma noradrenaline levels were measured at each stimulation. At baseline, CRH without colorectal distention induced more activation in the right amygdala in IBS patients than in controls. During intense distention after CRH injection, controls showed significantly greater activation than IBS patients in the right amygdala. Plasma ACTH and serum cortisol secretion showed a significant interaction between drug (CRH, saline) and distention. Plasma noradrenaline at baseline significantly increased after CRH injection compared to before injection in IBS. Further, plasma noradrenaline showed a significant group (IBS, controls) by drug by distention interaction. Exogenous CRH differentially sensitizes brain regions of the emotional-arousal circuitry within the visceral pain matrix to colorectal distention and synergetic activation of noradrenergic function in IBS patients and healthy individuals.
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Affiliation(s)
- Yukari Tanaka
- Department of Integrative Genomics, Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
- Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Motoyori Kanazawa
- Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Michiko Kano
- Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
- Department of Frontier Research Institute for Interdisciplinary Sciences, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Joe Morishita
- Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Toyohiro Hamaguchi
- Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Lukas Van Oudenhove
- Translational Research Center for Gastrointestinal Disorders (TARGID), Department of Clinical & Experimental Medicine, KU Leuven, Leuven, Belgium
| | - Huynh Giao Ly
- Translational Research Center for Gastrointestinal Disorders (TARGID), Department of Clinical & Experimental Medicine, KU Leuven, Leuven, Belgium
| | - Patrick Dupont
- Laboratory for Cognitive Neurology, Department of Neurosciences, KU Leuven, Leuven, Belgium
| | - Jan Tack
- Translational Research Center for Gastrointestinal Disorders (TARGID), Department of Clinical & Experimental Medicine, KU Leuven, Leuven, Belgium
| | - Takuhiro Yamaguchi
- Departments of Biostatistics, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Kazuhiko Yanai
- Departments of Pharmacology, Tohoku University Graduate School of Medicine, Sendai, Japan
- Departments of Cyclotron RI Center, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Manabu Tashiro
- Departments of Cyclotron RI Center, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Shin Fukudo
- Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
- * E-mail:
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Padhy SK, Sahoo S, Mahajan S, Sinha SK. Irritable bowel syndrome: Is it "irritable brain" or "irritable bowel"? J Neurosci Rural Pract 2015; 6:568-77. [PMID: 26752904 PMCID: PMC4692018 DOI: 10.4103/0976-3147.169802] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Irritable bowel syndrome (IBS) has been recognized as one of the most common and best studied disorders among the group of functional gastrointestinal disorders. It is a functional bowel disorder in which abdominal pain or discomfort is associated with defecation or a change in bowel habit. In the Western world, IBS appears to affect up to 20% of the population at any given time but in Asian countries, the median value of IBS prevalence defined by various criteria ranges between 6.5% and 10.1%, and community prevalence of 4% is found in North India. Those attending gastroenterology clinics represent only the tip of the iceberg. The disorder substantially impairs the quality of life, and the overall health-care costs are high. IBS has therefore gained increased attention from clinicians, researchers, and pharmaceutical industries. It is often frustrating to both patients and physicians as the disease is usually chronic in nature and difficult to treat. However, the understanding of IBS has been changing from time to time and still most of its concepts are unknown. In this review we have discussed, debated, and synthesized the evidence base, focusing on underlying mechanisms in the brain and bowel. We conclude that it is both brain and bowel mechanisms that are responsible. The clinical implication of such mechanisms is discussed.
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Affiliation(s)
- Susanta Kumar Padhy
- Department of Psychiatry, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Swapnajeet Sahoo
- Department of Psychiatry, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Sonali Mahajan
- Department of Psychiatry, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Saroj Kumar Sinha
- Department of Gastroenterology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
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Tkalcic M, Domijan D, Pletikosic S, Setic M, Hauser G. Attentional biases in irritable bowel syndrome patients. Clin Res Hepatol Gastroenterol 2014; 38:621-8. [PMID: 24679665 DOI: 10.1016/j.clinre.2014.02.002] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/11/2013] [Revised: 02/01/2014] [Accepted: 02/10/2014] [Indexed: 02/04/2023]
Abstract
BACKGROUND AND OBJECTIVE According to the cognitive behavioural model of irritable bowel syndrome (IBS) selective attention to visceral stimuli is one of the pathophysiological mechanisms in IBS. We aimed to investigate attentional biases in patients with IBS and to explore the relationship between neuroticism, trait anxiety, visceral anxiety and indices of attentional biases. METHODS Twenty-seven patients completed the global/local task and the modified Stroop task (using 4 word categories: neutral, symptom-related, emotionally and situationally relevant) while 28 healthy persons completed the Stroop task only. Both groups also filled out a set of psychological questionnaires. RESULTS The results show two distinct attentional biases in patients with irritable bowel syndrome. The index of global precedence was negatively correlated with neuroticism (r=-.41, P<.05) while there was no correlation of global precedence with trait and visceral anxiety. We found Stroop facilitation (F[3,81]=3.98, P<.02) specifically for situational threat words. Also, there were positive correlations between trait anxiety, visceral anxiety and the Stroop facilitation index for situational threat words (r=.43 and r=.47, P<.05). In the control group, we found neither Stroop facilitation nor interference. But, facilitation index of emotional words was positively correlated with neuroticism (r=.40, P<.05), which is in line with the "emotion congruent attentional bias" in the general population. CONCLUSIONS Neuroticism was associated with the reduction in global precedence observed in the global/local task. Trait anxiety and visceral anxiety were associated with Stroop facilitation elicited by situational threat words, which are of particular concern for patients with irritable bowel syndrome. These specific situations do not elicit an attentional bias in healthy participants, which might indicate that the observed facilitation to situational threat words is unique for IBS patients.
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Affiliation(s)
- Mladenka Tkalcic
- Department of Psychology, Faculty of Humanities and Social Sciences, University of Rijeka, Sveucilisna avenija 4, 51000 Rijeka, Croatia
| | - Drazen Domijan
- Department of Psychology, Faculty of Humanities and Social Sciences, University of Rijeka, Sveucilisna avenija 4, 51000 Rijeka, Croatia
| | - Sanda Pletikosic
- Department of Psychology, Faculty of Humanities and Social Sciences, University of Rijeka, Sveucilisna avenija 4, 51000 Rijeka, Croatia
| | - Mia Setic
- Department of Psychology, Faculty of Humanities and Social Sciences, University of Rijeka, Sveucilisna avenija 4, 51000 Rijeka, Croatia
| | - Goran Hauser
- Department of Internal Medicine, Division of Gastroenterology, Clinical Hospital Centre Rijeka, Kresimirova 42, 51000 Rijeka, Croatia.
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Mak ADP, Wu JCY, Chan Y, Chan FKL, Sung JJY, Lee S. Dyspepsia is strongly associated with major depression and generalised anxiety disorder - a community study. Aliment Pharmacol Ther 2012; 36:800-10. [PMID: 22957985 DOI: 10.1111/apt.12036] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2012] [Revised: 03/23/2012] [Accepted: 08/14/2012] [Indexed: 01/06/2023]
Abstract
BACKGROUND The relationship between dyspepsia and psychiatric comorbidity such as anxiety and depression is poorly defined. Previous studies have been limited by lack of standardised diagnostic criteria. AIM To examine the prevalence and comorbidity of dyspepsia as defined by Rome III (6-month duration) with DSM-IV-TR generalised anxiety disorder (GAD) and major depressive episodes (MDE) in the general population. METHODS A random population-based telephone survey was done using a questionnaire on symptoms of Rome III Dyspepsia, DSM-IV-TR GAD and MDE and their chronological relationship. RESULTS Of the 2011 respondents 8.0% currently had Rome III Dyspepsia, 3.8% reported GAD and 12.4% reported MDE respectively. Dyspeptic subjects had a twofold increased risk of GAD (OR = 2.03, 95% CI: 1.06-3.89, P < 0.001) and a threefold increased risk of MDE (OR = 3.56, 95% CI: 2.33-5.43, P < 0.001). MDE and GAD most often coincided with dyspepsia in onset. Dyspepsia (OR = 2.48, 95% CI: 1.65-3.72 P < 0.001), MDE (OR = 2.39, 95% CI: 1.64-3.46, P < 0.001) and female sex (OR = 1.65, 95% CI: 1.21-2.23, P < 0.001) independently predicted frequent medical consultations. GAD independently predicted high investigation expenditure (OR = 4.65, 95% CI: 1.15-18.70, P = 0.03). CONCLUSIONS With stringently adopted Rome III and DSM-IV-TR criteria, dyspepsia was strongly associated and often coincident in onset with generalised anxiety disorder and major depressive episodes in the community. Excessive healthcare utilisation should alert clinicians to risk of psychiatric comorbidity.
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Affiliation(s)
- A D P Mak
- Department of Psychiatry, Shatin Hospital, Hong Kong, China
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Tillman GD, Calley CS, Green TA, Buhl VI, Biggs MM, Spence JS, Briggs RW, Haley RW, Hart J, Kraut MA. Event-related potential patterns associated with hyperarousal in Gulf War illness syndrome groups. Neurotoxicology 2012; 33:1096-105. [PMID: 22691951 DOI: 10.1016/j.neuro.2012.06.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2011] [Revised: 05/14/2012] [Accepted: 06/03/2012] [Indexed: 12/29/2022]
Abstract
An exaggerated response to emotional stimuli is one of the several symptoms widely reported by veterans of the 1991 Persian Gulf War. Many have attributed these symptoms to post-war stress; others have attributed the symptoms to deployment-related exposures and associated damage to cholinergic, dopaminergic, and white matter systems. We collected event-related potential (ERP) data from 20 veterans meeting Haley criteria for Gulf War Syndromes 1-3 and from 8 matched Gulf War veteran controls, who were deployed but not symptomatic, while they performed an auditory three-condition oddball task with gunshot and lion roar sounds as the distractor stimuli. Reports of hyperarousal from the ill veterans were significantly greater than those from the control veterans; different ERP profiles emerged to account for their hyperarousability. Syndromes 2 and 3, who have previously shown brainstem abnormalities, show significantly stronger auditory P1 amplitudes, purported to indicate compromised cholinergic inhibitory gating in the reticular activating system. Syndromes 1 and 2, who have previously shown basal ganglia dysfunction, show significantly weaker P3a response to distractor stimuli, purported to indicate dysfunction of the dopaminergic contribution to their ability to inhibit distraction by irrelevant stimuli. All three syndrome groups showed an attenuated P3b to target stimuli, which could be secondary to both cholinergic and dopaminergic contributions or disruption of white matter integrity.
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Affiliation(s)
- Gail D Tillman
- Center for BrainHealth, The University of Texas at Dallas, USA
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Hartono JL, Mahadeva S, Goh KL. Anxiety and depression in various functional gastrointestinal disorders: do differences exist? J Dig Dis 2012; 13:252-7. [PMID: 22500787 DOI: 10.1111/j.1751-2980.2012.00581.x] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
OBJECTIVE To examine the differences in the prevalence and severity of anxiety and depression in patients with functional dyspepsia (FD), nonerosive reflux disease (NERD), irritable bowel syndrome (IBS) and healthy controls. METHODS Consecutive patients undergoing an index endoscopic examination for various symptoms were interviewed. All the three functional gastrointestinal disorders (FGIDs) were diagnosed according to the Rome III criteria. Anxiety and depression were diagnosed using a locally validated version of the hospital anxiety and depression scale. RESULTS A total of 248 patients were recruited (62 in FD, NERD, IBS and control groups each) with no differences in the basic characteristics. There was a higher prevalence of anxiety and depression in FD, NERD and IBS groups than that in the control group (43.5%, 45.2% and 67.7% vs 14.5%, P<0.001; and 22.6%, 33.9% and 38.7% vs 6.5%, P<0.0001). Using the cut-off score (>8) for anxiety or depression, IBS patients had a higher rate of anxiety than FD (P=0.01) and NERD (P=0.02), while no significant differences in depression rates were observed among all three groups. CONCLUSION [corrected] Anxiety is more common in patients with IBS than in those with FD and NERD, indicating a possible causal link in the former.
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Affiliation(s)
- Juanda Leo Hartono
- Division of Gastroenterology, Department of Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
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Bakker MJ, Boer F, Benninga MA, Koelman JHTM, Tijssen MAJ. Increased auditory startle reflex in children with functional abdominal pain. J Pediatr 2010; 156:285-91.e1. [PMID: 19846112 DOI: 10.1016/j.jpeds.2009.08.045] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/24/2009] [Revised: 06/11/2009] [Accepted: 08/21/2009] [Indexed: 01/20/2023]
Abstract
OBJECTIVE To test the hypothesis that children with abdominal pain-related functional gastrointestinal disorders have a general hypersensitivity for sensory stimuli. STUDY DESIGN Auditory startle reflexes were assessed in 20 children classified according to Rome III classifications of abdominal pain-related functional gastrointestinal disorders (13 irritable bowel syndrome [IBS], 7 functional abdominal pain syndrome; mean age, 12.4 years; 15 girls) and 23 control subjects (14 girls; mean age, 12.3 years) using a case-control design. The activity of 6 left-sided muscles and the sympathetic skin response were obtained by an electromyogram. We presented sudden loud noises to the subjects through headphones. RESULTS Both the combined response of 6 muscles and the blink response proved to be significantly increased in patients with abdominal pain compared with control subjects. A significant increase of the sympathetic skin response was not found. Comorbid anxiety disorders (8 patients with abdominal pain) or Rome III subclassification did not significantly affect these results. CONCLUSIONS This study demonstrates an objective hyperresponsivity to nongastrointestinal stimuli. Children with abdominal pain-related functional gastrointestinal disorders may have a generalized hypersensitivity of the central nervous system.
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Affiliation(s)
- Mirte J Bakker
- Department of Neurology and Clinical Neurophysiology, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands.
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14
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Emotional Significance of the Stimulus and Features of the Personality as Factors Reflected in the Pattern of Evoked EEG Potentials. NEUROPHYSIOLOGY+ 2010. [DOI: 10.1007/s11062-010-9100-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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15
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Rectal visceral sensitivity in women with irritable bowel syndrome without psychiatric comorbidity compared with healthy volunteers. Gastroenterol Res Pract 2009; 2009:130684. [PMID: 19789637 PMCID: PMC2748192 DOI: 10.1155/2009/130684] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2008] [Revised: 06/16/2009] [Accepted: 06/24/2009] [Indexed: 12/31/2022] Open
Abstract
Background. Psychiatric comorbidity and visceral hypersensitivity are common in patients with irritable bowel syndrome (IBS), but little is known about visceral sensitivity in IBS patients without psychiatric disorders.
Aim. We wanted to examine rectal visceral sensitivity in IBS patients without comorbid psychiatric disorders, IBS patients with phobic anxiety and healthy volunteers.
Methods. A total of thirty-eight female, non-constipated IBS patients without psychiatric disorders and eleven female IBS patients with phobic anxiety were compared to nine healthy women using a barostat double random staircase method. The non-psychiatric patients were divided into those with diarrhoea predominant symptoms and those with alternating stool habits.
Results. The IBS patients without psychiatric disorders had normal visceral pressure thresholds. However, in the diarrhoea predominant subgroup, the volume discomfort threshold was reduced while it was unchanged in those with alternating stool habits. The phobic IBS patients had similar thresholds to the healthy volunteers. The rectal tone was increased in the non-psychiatric IBS patients with diarrhoea predominant symptoms and in the IBS patients with phobic anxiety.
Conclusions. Non-constipated IBS patients without psychiatric disorders had increased visceral sensitivity regarding volume thresholds but normal pressure thresholds. Our study suggests that the lowered volume threshold was due to increased rectal tone.
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Dancey CP, Attree EA, Stuart G, Wilson C, Sonnet A. Words fail me: the verbal IQ deficit in inflammatory bowel disease and irritable bowel syndrome. Inflamm Bowel Dis 2009; 15:852-7. [PMID: 19130620 DOI: 10.1002/ibd.20837] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/09/2022]
Abstract
BACKGROUND Many chronic illnesses are accompanied by impaired cognitive functioning. In people with Inflammatory Bowel Disease (IBD), there is some research to suggest a decrement in verbal IQ (VIQ), when compared to people with Irritable Bowel Syndrome (IBS) and healthy controls. Although this is an important finding, it is necessary to ensure that such deficits are not due to methodological problems such as the failure to take into account pre-morbid functioning. METHODS A total of 88 people (IBD, N = 29; IBS, N = 29; Controls, N = 30) completed the Wechsler Abbreviated Scale of Intelligence (WASI), the Wechsler Test of Adult Reading (WATR), the Trait Rumination Questionnaire (TRQ), the Center for Epidemiologic Studies Depression Scale (CES-D), and the General Health Questionnaire (GHQ-12). RESULTS We found evidence of a VIQ decrement in both IBD and IBS groups when measured against both healthy controls and against their own pre-morbid IQ scores (WTAR-Predicted WAIS-III IQ measures). However, the decrement was larger (and of clinical significance) in the IBD group but not in the IBS group. CONCLUSION Some tentative evidence is presented which suggests that poor VIQ performance may be due in part to interference from excessive rumination.
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Is visceral hypersensitivity correlated with symptom severity in children with functional gastrointestinal disorders? J Pediatr Gastroenterol Nutr 2008; 46:272-8. [PMID: 18376243 DOI: 10.1097/mpg.0b013e31814b91e7] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
BACKGROUND Abdominal pain related to irritable bowel syndrome (IBS) and functional abdominal pain (FAP) is frequent in children and can be of variable severity. Both IBS and FAP are associated with rectal hypersensitivity. We hypothesized that in children with IBS and FAP, the rectal sensory threshold for pain (RSTP) is associated with symptom severity. PATIENTS AND METHODS A total of 47 patients (34 girls; median age, 14.2 years) with IBS (n = 29) and FAP (n = 18), according to the Rome II criteria, underwent a rectal barostat examination to determine their RSTP. Gastrointestinal symptom severity was assessed by validated questionnaires. During the rectal barostat exam, symptoms were documented using a visual analog scale and by measuring the area coloured on a human body diagram corresponding to painful sensations. RESULTS The median RSTP was 16 mmHg and was similar in IBS and FAP patients. Eighty-three percent of the patients had rectal hypersensitivity (RSTP < or = 30.8 mmHg, the 5th percentile of control children studied in our laboratory). Fifty-one percent and 36%, respectively, reported missing school and social activities at least once per week. Increased frequency of pain, missed days of school, missed social activities, and pain during the barostat examination were not associated with lower RSTP values in either the whole group or in the subset of children with rectal hypersensitivity. CONCLUSIONS Rectal hypersensitivity is not proportional to the severity of symptoms in children with IBS and FAP, indicating that symptom severity is influenced by other factors in addition to visceral hypersensitivity.
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18
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ZOU BC, DONG L, WANG Y, WANG SH, CAO MB. Expression and role of 5-HT7 receptor in brain and intestine in rats with irritable bowel syndrome. Chin Med J (Engl) 2007. [DOI: 10.1097/00029330-200712010-00002] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
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Pae CU, Masand PS, Ajwani N, Lee C, Patkar AA. Irritable bowel syndrome in psychiatric perspectives: a comprehensive review. Int J Clin Pract 2007; 61:1708-18. [PMID: 17877658 DOI: 10.1111/j.1742-1241.2007.01409.x] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
We comprehensively reviewed the irritable bowel syndrome (IBS) in terms of pathogenesis, psychiatric implications, general management and appropriate role of antidepressants, in particular selective serotonin uptake inhibitors (SSRIs) in the treatment of IBS. English language papers cited in MEDLINE and PychInfo from January 2000 to July 2006 were searched with a combination of the following key words: irritable bowel syndrome, 5-HT, pathogenesis, comorbid, psychiatry, treatment, psychotropic drugs, antidepressant, selective serotonin reuptake inhibitors (fluoxetine, paroxetine, sertraline, fluvoxamine, citalopram and sertraline), tricyclic antidepressants, review, meta-analysis and placebo. The papers on IBS describing the clinical features, pathophysiology, evaluation, management, and clinical trials [randomised placebo-controlled trial (RCT), open-label study or case report] were selected for this review. Further literatures were also detected from references of the identified papers. The epidemiology, diagnostic criteria, pathophysiology, general management, bidirectional comorbidity, summary of currently available RCTs and open-label studies investigating antidepressant efficacy (focusing on SSRIs), and suggestions for SSRI use in IBS were relevantly synthesised based on through review of identified data. This article summarised an up-to-date clinical overview of IBS in psychiatric perspectives as well as to position a current role of SSRIs in the treatment of IBS. From this review, the routine use of SSRIs for IBS treatment cannot be conclusive due to a paucity of RCTs, although a handful of RCTs suggested a potentially beneficial effect of SSRIs over placebo.
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Affiliation(s)
- C U Pae
- Department of Psychiatry, Kangnam St. Mary's Hospital, The Catholic University of Korea College of Medicine, Seoul, South Korea.
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20
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Boschen MJ. Reconceptualizing emetophobia: a cognitive-behavioral formulation and research agenda. J Anxiety Disord 2007; 21:407-19. [PMID: 16890398 DOI: 10.1016/j.janxdis.2006.06.007] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/03/2006] [Revised: 06/02/2006] [Accepted: 06/15/2006] [Indexed: 11/26/2022]
Abstract
Fear of vomiting (emetophobia) is a poorly understood anxiety disorder, with little research published into its conceptualization or treatment. The current article uses established cognitive and behavioral models of other anxiety disorders as a basis from which to propose a detailed model of emetophobia. The model proposes that emetophobia results from a constellation of factors including a general anxiety-vulnerability factor, a tendency to somatize anxiety as gastrointestinal distress, a tendency to catastrophically misappraise nausea and other gastrointestinal symptoms, hypervigilance to gastrointestinal cues, beliefs about the unacceptability of vomiting, negatively reinforced avoidance behavior, and selective confirmation biases. A formulation-based treatment package for emetophobia is outlined, including arousal management skills, distraction/attention training, exposure and cognitive restructuring.
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Affiliation(s)
- Mark J Boschen
- School of Psychology, Griffith University, PMB50 Gold Coast Mail Centre, Queensland 9726, Australia.
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21
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Gastrointestinal-focused panic attacks among Cambodian refugees: associated psychopathology, flashbacks, and catastrophic cognitions. J Anxiety Disord 2007; 21:42-58. [PMID: 16650726 DOI: 10.1016/j.janxdis.2006.03.009] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/25/2005] [Revised: 09/15/2005] [Accepted: 03/01/2006] [Indexed: 11/25/2022]
Abstract
Among Cambodian refugees attending a psychiatric clinic, we assessed psychopathology associated with gastrointestinal panic (GIP), and investigated possible causal mechanisms, including "fear of fear" and GIP-associated flashbacks and catastrophic cognitions. GIP (n=46) patients had greater psychopathology (Clinician-Administered PTSD Scale [CAPS] and Symptom Checklist-90-R [SCL]) and "fear of fear" (Anxiety Sensitivity Index [ASI]) than did non-GIP patients (n=84). Logistic regression revealed that general psychopathology (SCL; odds ratio=4.1) and fear of anxiety-related sensations (ASI; odds ratio=2.4) predicted the presence of GIP. Among GIP patients, a hierarchical regression revealed that GIP-associated trauma recall and catastrophic cognitions explained variance in GIP severity beyond a measure of general psychopathology (SCL). A mediational analysis indicated that SCL's effect on GIP severity was mediated by GIP-associated flashbacks and catastrophic cognitions.
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Andresen V, Poellinger A, Tsrouya C, Bach D, Stroh A, Foerschler A, Georgiewa P, Schmidtmann M, van der Voort IR, Kobelt P, Zimmer C, Wiedenmann B, Klapp BF, Monnikes H. Cerebral processing of auditory stimuli in patients with irritable bowel syndrome. World J Gastroenterol 2006; 12:1723-9. [PMID: 16586541 PMCID: PMC4124347 DOI: 10.3748/wjg.v12.i11.1723] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To determine by brain functional magnetic resonance imaging (fMRI) whether cerebral processing of non-visceral stimuli is altered in irritable bowel syndrome (IBS) patients compared with healthy subjects. To circumvent spinal viscerosomatic convergence mechanisms, we used auditory stimulation, and to identify a possible influence of psychological factors the stimuli differed in their emotional quality.
METHODS: In 8 IBS patients and 8 controls, fMRI measurements were performed using a block design of 4 auditory stimuli of different emotional quality (pleasant sounds of chimes, unpleasant peep (2000 Hz), neutral words, and emotional words). A gradient echo T2*-weighted sequence was used for the functional scans. Statistical maps were constructed using the general
linear model.
RESULTS: To emotional auditory stimuli, IBS patients relative to controls responded with stronger deactivations in a greater variety of emotional processing regions, while the response patterns, unlike in controls, did not differentiate between distressing or pleasant sounds. To neutral auditory stimuli, by contrast, only IBS patients responded with large significant activations.
CONCLUSION: Altered cerebral response patterns to auditory stimuli in emotional stimulus-processing regions suggest that altered sensory processing in IBS may not be specific for visceral sensation, but might reflect
generalized changes in emotional sensitivity and affective reactivity, possibly associated with the psychological comorbidity often found in IBS patients.
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Affiliation(s)
- Viola Andresen
- Department of Medicine, Division of Hepatology, Gastroenterology, and Endocrinology, Charité-Universitätsmedizin Berlin, Augustenburger Platz 1, 13353 Berlin, Germany
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23
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Dong HW, Swanson LW. Projections from bed nuclei of the stria terminalis, magnocellular nucleus: implications for cerebral hemisphere regulation of micturition, defecation, and penile erection. J Comp Neurol 2006; 494:108-41. [PMID: 16304682 PMCID: PMC2570190 DOI: 10.1002/cne.20789] [Citation(s) in RCA: 76] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The basic structural organization of axonal projections from the small but distinct magnocellular and ventral nuclei (of the bed nuclei of the stria terminalis) was analyzed with the Phaseolus vulgaris leucoagglutinin anterograde tract tracing method in adult male rats. The former's overall projection pattern is complex, with over 80 distinct terminal fields ipsilateral to injection sites. Innervated regions in the cerebral hemisphere and brainstem fall into nine general functional categories: cerebral nuclei, behavior control column, orofacial motor-related, humorosensory/thirst-related, brainstem autonomic control network, neuroendocrine, hypothalamic visceromotor pattern-generator network, thalamocortical feedback loops, and behavioral state control. The most novel findings indicate that the magnocellular nucleus projects to virtually all known major parts of the brain network that controls pelvic functions, including micturition, defecation, and penile erection, as well as to brain networks controlling nutrient and body water homeostasis. This and other evidence suggests that the magnocellular nucleus is part of a corticostriatopallidal differentiation modulating and coordinating pelvic functions with the maintenance of nutrient and body water homeostasis. Projections of the ventral nucleus are a subset of those generated by the magnocellular nucleus, with the obvious difference that the ventral nucleus does not project detectably to Barrington's nucleus, the subfornical organ, the median preoptic and parastrial nuclei, the neuroendocrine system, and midbrain orofacial motor-related regions.
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Affiliation(s)
- Hong-Wei Dong
- Department of Biological Sciences, University of Southern California, Los Angeles, 90089-2520, USA
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24
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Abstract
Psychiatric comorbidity is not an uncommon phenomenon in patients with noncardiac chest pain (NCCP). Panic disorder seems to be the most important psychiatric comorbidity for a number of reasons. First, it is the most common psychiatric disorder associated with NCCP. Second, panic disorder is a highly treatable condition that can produce dramatic improvement of NCCP when treatment is appropriate. Finally, the treatment of psychiatric comorbidity, whether panic disorder or other psychiatric disorders, can pay significant dividends in terms of improving the patient's overall well-being and adaptation to illness, even if his/her chest pain symptoms are not alleviated. Adopting a biopsychosocial model to intervene on the stress of these patients' experience is a key concept that can make NCCP a much less formidable challenge for the gastroenterologist.
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Affiliation(s)
- Kevin W Olden
- Division of Gastroenterology, University of South Alabama, Knollwood Pavilion, 5600 Girby Road, Mobile, AL 36693, USA.
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25
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Andresen V, Bach DR, Poellinger A, Tsrouya C, Stroh A, Foerschler A, Georgiewa P, Zimmer C, Mönnikes H. Brain activation responses to subliminal or supraliminal rectal stimuli and to auditory stimuli in irritable bowel syndrome. Neurogastroenterol Motil 2005; 17:827-37. [PMID: 16336498 DOI: 10.1111/j.1365-2982.2005.00720.x] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Visceral hypersensitivity in irritable bowel syndrome (IBS) has been associated with altered cerebral activations in response to visceral stimuli. It is unclear whether these processing alterations are specific for visceral sensation. In this study we aimed to determine by functional magnetic resonance imaging (fMRI) whether cerebral processing of supraliminal and subliminal rectal stimuli and of auditory stimuli is altered in IBS. In eight IBS patients and eight healthy controls, fMRI activations were recorded during auditory and rectal stimulation. Intensities of rectal balloon distension were adapted to the individual threshold of first perception (IPT): subliminal (IPT -10 mmHg), liminal (IPT), or supraliminal (IPT +10 mmHg). IBS patients relative to controls responded with lower activations of the prefrontal cortex (PFC) and anterior cingulate cortex (ACC) to both subliminal and supraliminal stimulation and with higher activation of the hippocampus (HC) to supraliminal stimulation. In IBS patients, not in controls, ACC and HC were also activated by auditory stimulation. In IBS patients, decreased ACC and PFC activation with subliminal and supraliminal rectal stimuli and increased HC activation with supraliminal stimuli suggest disturbances of the associative and emotional processing of visceral sensation. Hyperreactivity to auditory stimuli suggests that altered sensory processing in IBS may not be restricted to visceral sensation.
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Affiliation(s)
- V Andresen
- Department of Medicine, Division of Hepatology, Gastroenterology, and Endocrinology, Charité- Universitätsmedizin Berlin, Berlin, Germany
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Peng LH, Yang YS, Sun G, Wang WF. Proteomic analysis of colonic mucosa by two-dimensional gel electrophoresis in constipation-predominant irritable bowel syndrome. Shijie Huaren Xiaohua Zazhi 2005; 13:2339-2342. [DOI: 10.11569/wcjd.v13.i19.2339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To analyze the differential expression of proteome in colonic mucosa between patients with constipation-predominant irritable bowel syndrome (C-IBS) and the healthy controls.
METHODS: Two dimensional polyacrylamide gel elect-rophoresis (2-DE) technique and computer-assisted image analysis were used to separate the protein spots and analyze the differential expression of proteome in the colonic mucosa of the healthy controls and patients with C-IBS.
RESULTS: A total of 308 protein spots were identified in the av-erage gel of the healthy controls, and 238 in patients with C-IBS. A total of 178 protein spots were matched, and the mean matching rate was 74.49%. There were 18 protein spots that were significantly differentially expressed. Of those 18 protein spots, the expression of 3 spots were increased markedly, while 15 were decreased significantly.
CONCLUSION: The proteomic expression in colonic mu-cosa of patients with C-IBS is significantly different from that of the healthy contr ols, which may be associated with the pathogenesis of C-IBS.
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Abstract
The prevalence of irritable bowel syndrome (IBS) ranges in all countries of the world between 6 and 25%, in Germany between 15 and 22%. The divergent rates of prevalence are mainly due to different definitions of IBS in epidemiological studies. In Germany, 20-50% of persons with IBS symptoms seek medical help. IBS patients produce high direct and indirect costs. The following psychophysiological mechanisms of IBS are presumed to be empirically validated: visceral hypersensitivity, postinfectious sequelae, psychiatric disorders, and psychosocial stress. Tricyclic antidepressant agents and psychotherapy (hypnosis, cognitive behavioral therapy, and psychodynamic therapy) are effective for treatment of IBS forms dominated by pain. In one controlled study, the combination of pharmacological therapy and cognitive behavioral therapy was superior to pharmacological therapy alone.
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Affiliation(s)
- W Häuser
- Medizinische Klinik I, Klinikum Saarbrücken, Saarbrücken.
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Attree EA, Dancey CP, Keeling D, Wilson C. Cognitive function in people with chronic illness: inflammatory bowel disease and irritable bowel syndrome. APPLIED NEUROPSYCHOLOGY 2003; 10:96-104. [PMID: 12788684 DOI: 10.1207/s15324826an1002_05] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Recent research has shown that people with chronic illnesses often experience cognitive deficits, such deficits may be specific to a particular type of illness, reflecting the disease process itself, or they may be deficits that are common across a number of chronic illnesses. Our study investigated whether people with an organic disease (Inflammatory Bowel Disease) show cognitive dysfunction relative to the control group and people with a functional illness (Irritable Bowel Syndrome), and if so, to elucidate the mechanisms by which such dysfunction occurs. A quasi-experimental design using three groups of participants provided scores on IQ, memory, and cognitive flexibility. Differences in absolute scores were slight. However, a noticeable interaction effect was found between group and IQ: The illness groups showed a deficit in verbal IQ relative to both their own performance IQ and to that of the control group's verbal IQ. This verbal deficit cannot be explained by depression, cognitive load, or medication.
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Affiliation(s)
- Elizabeth A Attree
- School of Psychology, University of East London, Stratford, London, United Kingdom.
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29
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Abstract
Psychosocial factors, such as stress, abuse history, psychiatric disturbance, coping style, and learned illness behaviors, play an important role in functional GI disorders in terms of symptom experience and clinical outcome. These psychosocial factors are influenced by and influence GI symptoms in a bidirectional manner as mediated through the brain-gut axis (CNS and ENS pathways). Entering the patient encounter using a biopsychosocial approach and a care (versus cure) style can help avoid excessive diagnostic testing, and elicit crucial information about potential abuse history or psychiatric symptoms that can help guide therapy. Finally, for patients with severe, refractory symptoms, multicomponent treatment involving psychologic therapy, such as CBT, relaxation, or hypnotherapy, can be beneficial.
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Affiliation(s)
- Adriane I Budavari
- Department of Medicine, Mayo Clinic Hospital, 5777 East Mayo Boulevard, Scottsdale, AZ 85054, USA
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