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Said O, Sengun Filiz E, Stringer D, Applewhite B, Kellermann V, Mutwalli H, Bektas S, Akkese MN, Kumar A, Carter B, Simic M, Sually D, Bentley J, Young AH, Madden S, Byford S, Landau S, Lawrence V, Treasure J, Schmidt U, Nicholls D, Himmerich H. Olanzapine for young PEople with aNorexia nervosa (OPEN): A protocol for an open-label feasibility study. Eur Eat Disord Rev 2024; 32:532-546. [PMID: 38299859 DOI: 10.1002/erv.3060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 12/13/2023] [Accepted: 12/30/2023] [Indexed: 02/02/2024]
Abstract
INTRODUCTION Antipsychotics are routinely prescribed off-label for anorexia nervosa (AN) despite limited evidence. This article presents a protocol of a study aiming to assess the feasibility of a future definitive trial on olanzapine in young people with AN. METHODS AND ANALYSIS In an open-label, one-armed feasibility study, 55 patients with AN or atypical AN, aged 12-24, receiving outpatient, inpatient or day-care treatment who are considered for olanzapine treatment will be recruited from NHS sites based in England. Assessments will be conducted at screening, baseline and at 8-, 16 weeks, 6- and 12 months. Primary feasibility parameters will be proportions of patients who agree to take olanzapine and who adhere to treatment and complete study assessments. Qualitative methods will be used to explore acceptability of the intervention and study design. Secondary feasibility parameters will be changes in body mass index, psychopathology, side effects, health-related quality of life, carer burden and proportion of participants who would enrol in a future randomised controlled trial. The study is funded by the National Institute for Health Research via Health Technology Assessment programme. DISCUSSION Olanzapine for young PEople with aNorexia nervosa will inform a future randomised controlled trial on the efficacy and safety of prescribing olanzapine in young people with AN.
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Affiliation(s)
- Olena Said
- Department of Psychological Medicine, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
| | - Ece Sengun Filiz
- Division of Psychiatry, Department of Brain Sciences, Imperial College London, London, UK
| | - Dominic Stringer
- Department of Biostatistics and Health Informatics, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
| | - Briana Applewhite
- Department of Psychological Medicine, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
| | - Vanessa Kellermann
- Department of Health Service and Population Research, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
| | - Hiba Mutwalli
- Department of Psychological Medicine, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
- Department of Clinical Nutrition, College of Applied Medical Sciences, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Sevgi Bektas
- Department of Psychological Medicine, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
| | - Melahat Nur Akkese
- Department of Psychological Medicine, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
| | - Ashish Kumar
- Department of Psychological Medicine, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
- Mersey Care NHS Foundation Trust, Merseyside, UK
| | - Ben Carter
- Department of Biostatistics and Health Informatics, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
| | - Mima Simic
- South London and Maudsley NHS Foundation Trust, London, UK
| | - Dilveer Sually
- Department of Psychological Medicine, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
| | - Jessica Bentley
- Department of Psychological Medicine, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
| | - Allan H Young
- Department of Psychological Medicine, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
- South London and Maudsley NHS Foundation Trust, London, UK
| | - Sloane Madden
- University of Sydney, Sydney, New South Wales, Australia
| | - Sarah Byford
- Department of Health Service and Population Research, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
| | - Sabine Landau
- Department of Biostatistics and Health Informatics, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
| | - Vanessa Lawrence
- Department of Health Service and Population Research, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
| | - Janet Treasure
- Department of Psychological Medicine, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
- South London and Maudsley NHS Foundation Trust, London, UK
| | - Ulrike Schmidt
- Department of Psychological Medicine, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
- South London and Maudsley NHS Foundation Trust, London, UK
| | - Dasha Nicholls
- Division of Psychiatry, Department of Brain Sciences, Imperial College London, London, UK
| | - Hubertus Himmerich
- Department of Psychological Medicine, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
- South London and Maudsley NHS Foundation Trust, London, UK
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Hunter AR, Heiderscheit A, Galbally M, Gravina D, Mutwalli H, Himmerich H. The Effects of Music-Based Interventions for Pain and Anxiety Management during Vaginal Labour and Caesarean Delivery: A Systematic Review and Narrative Synthesis of Randomised Controlled Trials. Int J Environ Res Public Health 2023; 20:7120. [PMID: 38063550 PMCID: PMC10706633 DOI: 10.3390/ijerph20237120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Revised: 11/04/2023] [Accepted: 11/25/2023] [Indexed: 12/18/2023]
Abstract
Music-based interventions are not physically invasive, they usually have minimal side effects, and they are increasingly being implemented during the birthing process for pain and anxiety relief. The aim of this systematic review is to summarise and evaluate published, randomised controlled trials (RCTs) assessing the effects of music-based interventions for pain and anxiety management during vaginal labour and caesarean delivery. Following the PRISMA guidelines, a systematic search of the literature was conducted using: PsychInfo (Ovid), PubMed, and Web of Science. Studies were included in the review if they were RCTs that assessed the effects of music on pain and anxiety during vaginal and caesarean delivery by human mothers. A narrative synthesis was conducted on 28 identified studies with a total of 2835 participants. Most, but not all, of the included studies assessing music-based interventions resulted in reduced anxiety and pain during vaginal and caesarean delivery. Music as part of a comprehensive treatment strategy, participant-selected music, music coupled with another therapy, and relaxing/instrumental music was specifically useful for reducing light to moderate pain and anxiety. Music-based interventions show promising effects in mitigating pain and anxiety in women during labour. However, the long-term effects of these interventions are unclear.
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Affiliation(s)
- Amy Rose Hunter
- Centre for Research in Eating and Weight Disorders (CREW), Department of Psychological Medicine, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London SE5 8AF, UK
- Mental Health Studies Programme, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London SE5 8AB, UK
| | - Annie Heiderscheit
- Cambridge Institute for Music Therapy Research, Anglia Ruskin University, Cambridge CB1 2LZ, UK
| | - Megan Galbally
- School of Clinical Sciences, Department of Psychiatry, Monash University, Clayton, VIC 3168, Australia
| | - Davide Gravina
- Centre for Research in Eating and Weight Disorders (CREW), Department of Psychological Medicine, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London SE5 8AF, UK
- Department of Clinical and Experimental Medicine, University of Pisa, 56127 Pisa, Italy
| | - Hiba Mutwalli
- Centre for Research in Eating and Weight Disorders (CREW), Department of Psychological Medicine, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London SE5 8AF, UK
- Department of Clinical Nutrition, College of Applied Medical Sciences, Imam Abdulrahman Bin Faisal University, Dammam 31441, Saudi Arabia
| | - Hubertus Himmerich
- Centre for Research in Eating and Weight Disorders (CREW), Department of Psychological Medicine, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London SE5 8AF, UK
- South London and Maudsley NHS Foundation Trust, Bethlem Royal Hospital, Monks Orchard Road, Beckenham BR3 3BX, UK
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Bektas S, Natali L, Rowlands K, Valmaggia L, Di Pietro J, Mutwalli H, Himmerich H, Treasure J, Cardi V. Exploring Correlations of Food-Specific Disgust with Eating Disorder Psychopathology and Food Interaction: A Preliminary Study Using Virtual Reality. Nutrients 2023; 15:4443. [PMID: 37892518 PMCID: PMC10609698 DOI: 10.3390/nu15204443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 10/02/2023] [Accepted: 10/12/2023] [Indexed: 10/29/2023] Open
Abstract
The emotion of disgust is thought to play a critical role in maintaining restrictive eating among individuals with anorexia nervosa. This exploratory cross-sectional study examined correlations between food-specific trait and state disgust, eating disorder psychopathology, illness severity (body mass index: BMI), and interactions with virtual foods in people with anorexia nervosa. Food-specific trait disgust and eating disorder symptoms were measured before exposure to virtual foods in one of three virtual reality (VR) kitchens to which participants were randomly allocated. Food interactions (eye gaze and reaching towards virtual foods) were measured during the VR exposure. Food-specific state disgust ratings were collected after the VR exposure. In the entire sample, eating disorder symptoms correlated positively with food-specific trait disgust (rs (68) = 0.45, p < 0.001). We also found a significant association between food-specific state disgust and eating disorder symptoms in each virtual kitchen scenario: virtual kitchen only (rs (22) = 0.40, p = 0.05), virtual kitchen plus pet (rs (22) = 0.80, p < 0.001), and virtual kitchen plus avatar (rs (20) = 0.78, p < 0.001). No significant correlation was observed for the link between food-specific disgust measures and food-related touch. Correlations between food-specific trait disgust and food-related eye gaze differed across scenarios. The current experimental paradigm needs to be improved to draw firm conclusions. Both food-specific trait and state disgust are associated with eating disorder psychopathology, and therefore, effective strategies are warranted to attenuate food-specific disgust.
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Affiliation(s)
- Sevgi Bektas
- Centre for Research in Eating and Weight Disorders (CREW), Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London SE5 8AF, UK; (K.R.); (H.M.); (H.H.); (J.T.); (V.C.)
- Department of Psychology, Hacettepe University, Ankara 06800, Türkiye
| | - Ludovica Natali
- Department of General Psychology, University of Padova, 35122 Padova, Italy
| | - Katie Rowlands
- Centre for Research in Eating and Weight Disorders (CREW), Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London SE5 8AF, UK; (K.R.); (H.M.); (H.H.); (J.T.); (V.C.)
| | - Lucia Valmaggia
- Department of Psychology, Institute of Psychiatry, Psychology & Neuroscience, King’s College London, London SE5 8AF, UK; (L.V.); (J.D.P.)
- South London and Maudsley NHS Foundation Trust, London SE5 8AB, UK
- Department of Psychiatry, KU Leuven, 3000 Leuven, Belgium
| | - Jerome Di Pietro
- Department of Psychology, Institute of Psychiatry, Psychology & Neuroscience, King’s College London, London SE5 8AF, UK; (L.V.); (J.D.P.)
| | - Hiba Mutwalli
- Centre for Research in Eating and Weight Disorders (CREW), Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London SE5 8AF, UK; (K.R.); (H.M.); (H.H.); (J.T.); (V.C.)
- Department of Clinical Nutrition, College of Applied Medical Sciences, Imam Abdulrahman Bin Faisal University, Dammam 34212, Saudi Arabia
| | - Hubertus Himmerich
- Centre for Research in Eating and Weight Disorders (CREW), Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London SE5 8AF, UK; (K.R.); (H.M.); (H.H.); (J.T.); (V.C.)
- South London and Maudsley NHS Foundation Trust, London SE5 8AB, UK
| | - Janet Treasure
- Centre for Research in Eating and Weight Disorders (CREW), Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London SE5 8AF, UK; (K.R.); (H.M.); (H.H.); (J.T.); (V.C.)
- South London and Maudsley NHS Foundation Trust, London SE5 8AB, UK
| | - Valentina Cardi
- Centre for Research in Eating and Weight Disorders (CREW), Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London SE5 8AF, UK; (K.R.); (H.M.); (H.H.); (J.T.); (V.C.)
- Department of General Psychology, University of Padova, 35122 Padova, Italy
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Himmerich H, Lewis YD, Conti C, Mutwalli H, Karwautz A, Sjögren JM, Uribe Isaza MM, Tyszkiewicz-Nwafor M, Aigner M, McElroy SL, Treasure J, Kasper S. World Federation of Societies of Biological Psychiatry (WFSBP) guidelines update 2023 on the pharmacological treatment of eating disorders. World J Biol Psychiatry 2023:1-64. [PMID: 37350265 DOI: 10.1080/15622975.2023.2179663] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Accepted: 02/08/2023] [Indexed: 06/24/2023]
Abstract
OBJECTIVES This 2023 update of the WFSBP guidelines for the pharmacological treatment of eating disorders (EDs) reflects the latest diagnostic and psychopharmacological progress and the improved WFSBP recommendations for the assessment of the level of evidence (LoE) and the grade of recommendation (GoR). METHODS The WFSBP Task Force EDs reviewed the relevant literature and provided a timely grading of the LoE and the GoR. RESULTS In anorexia nervosa (AN), only a limited recommendation (LoE: A; GoR: 2) for olanzapine can be given, because the available evidence is restricted to weight gain, and its effect on psychopathology is less clear. In bulimia nervosa (BN), the current literature prompts a recommendation for fluoxetine (LoE: A; GoR: 1) or topiramate (LoE: A; GoR: 1). In binge-eating disorder (BED), lisdexamfetamine (LDX; LoE: A; GoR: 1) or topiramate (LoE: A; GoR: 1) can be recommended. There is only sparse evidence for the drug treatment of avoidant restrictive food intake disorder (ARFID), pica, and rumination disorder (RD). CONCLUSION In BN, fluoxetine, and topiramate, and in BED, LDX and topiramate can be recommended. Despite the published evidence, olanzapine and topiramate have not received marketing authorisation for use in EDs from any medicine regulatory agency.
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Affiliation(s)
- Hubertus Himmerich
- Department of Psychological Medicine, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
- South London and Maudsley NHS Foundation Trust, Bethlem Royal Hospital, Beckenham, UK
| | - Yael Doreen Lewis
- Hadarim Eating Disorders Unit, Shalvata Mental Health Center, Hod HaSharon, Israel
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Chiara Conti
- Department of Psychological, Health, and Territorial Sciences, University "G. d'Annunzio" of Chieti-Pescara, Chieti, Italy
| | - Hiba Mutwalli
- Department of Psychological Medicine, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
- Department of Clinical Nutrition, College of Applied Medical Sciences, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Andreas Karwautz
- Eating Disorders Care & Research Unit, Department of Child and Adolescent Psychiatry, Medical University of Vienna, Vienna, Austria
| | | | | | - Marta Tyszkiewicz-Nwafor
- Department of Child and Adolescent Psychiatry, Poznan University of Medical Sciences, Poznań, Poland
| | - Martin Aigner
- Universitätsklinikum Tulln, Tulln an der Donau, Austria
| | - Susan L McElroy
- Lindner Center of HOPE, Mason, OH, USA
- University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Janet Treasure
- Department of Psychological Medicine, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
- South London and Maudsley NHS Foundation Trust, Bethlem Royal Hospital, Beckenham, UK
| | - Siegfried Kasper
- Center for Brain Research, Medical University of Vienna, Vienna, Austria
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Aldubayan K, Ghafouri K, Mutwalli H, Kutbi HA, Mumena WA. Validity and Consistency of the Arabic Version of the Eating Disorder Examination Questionnaire (EDE-Q) among Saudi Adults. Healthcare (Basel) 2023; 11:healthcare11071052. [PMID: 37046979 PMCID: PMC10094318 DOI: 10.3390/healthcare11071052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 04/01/2023] [Accepted: 04/04/2023] [Indexed: 04/08/2023] Open
Abstract
The prevalence of eating disorders (EDs) is growing, and early screening is important to prevent related health complications. The Eating Disorder Examination Questionnaire (EDE-Q) has been widely used as a diagnostic tool to identify cases of EDs; however, a validated Arabic version of the tool is needed to help in the screening process of EDs. The aim of this study was to validate the Arabic version of EDE-Q. A cross-sectional study included a sample of 549 adults, who were recruited mainly from the four major provinces in Saudi Arabia. A forward–backward translation method was conducted, and then the tool was validated using the confirmatory factor analysis (CFA). The dataset was split for further convergent analysis using exploratory factor analysis (EFA) and CFA. The results of CFA from the main dataset did not support the four-factor original EDE-Q. The results of EFA from the first data-split suggested a three-factor EDE-Q-14 Arabic version. This was supported by the results of CFA of the second data-split. A total of five items were allocated in each shape and weight concern, and restraint component, with correlations ranging from 0.969 and 0.462 and from 0.847 to 0.437, respectively. A total of four items were allocated in eating concern, with correlations ranging from 0.748 to 0.556. The internal consistency of the global and the three subscales were high, with Cronbach’s α ranging from 0.762 to 0.900. Findings of the current study suggest that the Arabic version of the EDE-Q-14 is a valid and reliable tool to screen for EDs among adults in Saudi Arabia.
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Affiliation(s)
- Khalid Aldubayan
- Department of Community Health Sciences, Collage of Applied Medical Sciences, King Saud University, P.O. Box 10219, Riyadh 11433, Saudi Arabia
| | - Khloud Ghafouri
- Departmrnt of Clinical Nutrition, Collage of Applied Medical Sciences, Umm Al-Qura University, P.O. Box 715, Makkah 21955, Saudi Arabia
| | - Hiba Mutwalli
- Department of Clinical Nutrition, College of Applied Medical Sciences, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam 31441, Saudi Arabia
| | - Hebah A. Kutbi
- Clinical Nutrition Department, Faculty of Applied Medical Sciences, King Abdulaziz University, P.O. Box 80215, Jeddah 21589, Saudi Arabia
| | - Walaa A. Mumena
- Clinical Nutrition Department, College of Applied Medical Sciences, Taibah University, P.O. Box 344, Madinah 42353, Saudi Arabia
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Mutwalli H, Keeler JL, Bektas S, Dhopatkar N, Treasure J, Himmerich H. Eating cognitions, emotions and behaviour under treatment with second generation antipsychotics: A systematic review and meta-analysis. J Psychiatr Res 2023; 160:137-162. [PMID: 36804110 PMCID: PMC10682412 DOI: 10.1016/j.jpsychires.2023.02.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 01/30/2023] [Accepted: 02/05/2023] [Indexed: 02/10/2023]
Abstract
Weight gain and metabolic disturbances are frequent in people treated with second generation antipsychotics (SGA). We aimed to investigate the effect of SGAs on eating behaviors, cognitions and emotions, as a possible contributor to this adverse effect. A systematic review and a meta-analysis were conducted following the Preferred Reporting Items for Systematic reviews and Meta-Analyses (PRISMA) guidelines. Original articles measuring outcomes relating to eating cognitions, behaviours and emotions, during treatment with SGAs were included in this review. A total of 92 papers with 11,274 participants were included from three scientific databases (PubMed, Web of Science and PsycInfo). Results were synthesized descriptively except for the continuous data where meta-analyses were performed and for the binary data where odds ratios were calculated. Hunger was increased in participants treated with SGAs with an odds ratio for appetite increase of 1.51 (95% CI [1.04, 1.97]; z = 6.40; p < 0.001). Compared to controls, our results showed that craving for fat and carbohydrates are the highest among other craving subscales. There was a small increase in dietary disinhibition (SMD = 0.40) and restrained eating (SMD = 0.43) in participants treated with SGAs compared to controls and substantial heterogeneity across studies reporting these eating traits. There were few studies examining other eating-related outcomes such as food addiction, satiety, fullness, caloric intake and dietary quality and habits. Understanding the mechanisms associated with appetite and eating-related psychopathology changes in patients treated with antipsychotics is needed to reliably inform the development of effective preventative strategies.
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Affiliation(s)
- Hiba Mutwalli
- Section of Eating Disorders, Department of Psychological Medicine, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK; Department of Clinical Nutrition, College of Applied Medical Sciences, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia.
| | - Johanna Louise Keeler
- Section of Eating Disorders, Department of Psychological Medicine, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
| | - Sevgi Bektas
- Section of Eating Disorders, Department of Psychological Medicine, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK; Department of Psychology, Hacettepe University, Ankara, Turkey
| | - Namrata Dhopatkar
- Eating Disorders Unit, Bethlem Royal Hospital, South London and Maudsley NHS Foundation Trust (SLaM), London, UK
| | - Janet Treasure
- Section of Eating Disorders, Department of Psychological Medicine, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK; Eating Disorders Unit, Bethlem Royal Hospital, South London and Maudsley NHS Foundation Trust (SLaM), London, UK
| | - Hubertus Himmerich
- Section of Eating Disorders, Department of Psychological Medicine, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK; Eating Disorders Unit, Bethlem Royal Hospital, South London and Maudsley NHS Foundation Trust (SLaM), London, UK
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Dhopatkar N, Keeler JL, Mutwalli H, Whelan K, Treasure J, Himmerich H. Gastrointestinal symptoms, gut microbiome, probiotics and prebiotics in anorexia nervosa: A review of mechanistic rationale and clinical evidence. Psychoneuroendocrinology 2023; 147:105959. [PMID: 36327759 DOI: 10.1016/j.psyneuen.2022.105959] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Revised: 09/22/2022] [Accepted: 10/20/2022] [Indexed: 11/27/2022]
Abstract
Recent research has revealed the pivotal role that the gut microbiota might play in psychiatric disorders. In anorexia nervosa (AN), the gut microbiota may be involved in pathophysiology as well as in the gastrointestinal (GI) symptoms commonly experienced. This review collates evidence for the potential role of gut microbiota in AN, including modulation of the immune system, the gut-brain axis and GI function. We examined studies comparing gut microbiota in AN with healthy controls as well as those looking at modifications in gut microbiota with nutritional treatment. Changes in energy intake and nutritional composition influence gut microbiota and may play a role in the evolution of the gut microbial picture in AN. Additionally, some evidence indicates that pre-morbid gut microbiota may influence risk of developing AN. There appear to be similarities in gut microbial composition, mechanisms of interaction and GI symptoms experienced in AN and other GI disorders such as inflammatory bowel disease and functional GI disorders. Probiotics and prebiotics have been studied in these disorders showing therapeutic effects of probiotics in some cases. Additionally, some evidence exists for the therapeutic benefits of probiotics in depression and anxiety, commonly seen as co-morbidities in AN. Moreover, preliminary evidence for the use of probiotics in AN has shown positive effects on immune modulation. Based on these findings, we discuss the potential therapeutic role for probiotics in ameliorating symptoms in AN.
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Affiliation(s)
- Namrata Dhopatkar
- South London and Maudsley NHS Foundation Trust, Bethlem Royal Hospital, Monks Orchard Road, Beckenham BR3 3BX, UK.
| | - Johanna Louise Keeler
- Section of Eating Disorders, Department of Psychological Medicine, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London SE5 8AF, UK.
| | - Hiba Mutwalli
- Section of Eating Disorders, Department of Psychological Medicine, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London SE5 8AF, UK.
| | - Kevin Whelan
- Department of Nutritional Sciences, King's College London, London SE1 9NH, UK.
| | - Janet Treasure
- South London and Maudsley NHS Foundation Trust, Bethlem Royal Hospital, Monks Orchard Road, Beckenham BR3 3BX, UK; Section of Eating Disorders, Department of Psychological Medicine, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London SE5 8AF, UK.
| | - Hubertus Himmerich
- South London and Maudsley NHS Foundation Trust, Bethlem Royal Hospital, Monks Orchard Road, Beckenham BR3 3BX, UK; Section of Eating Disorders, Department of Psychological Medicine, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London SE5 8AF, UK.
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Khattab R, Albannawi M, Alhajjmohammed D, Alkubaish Z, Althani R, Altheeb L, Ayoub H, Mutwalli H, Altuwajiry H, Al-Sheikh R, Purayidathil T, Abuzaid O. Metformin-Induced Vitamin B12 Deficiency among Type 2 Diabetes Mellitus' Patients: A Systematic Review. Curr Diabetes Rev 2023; 19:1-10. [PMID: 35440313 DOI: 10.2174/1573399818666220418080959] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 01/30/2022] [Accepted: 03/03/2022] [Indexed: 11/22/2022]
Abstract
BACKGROUND Type 2 diabetes mellitus is one of the most globally common chronic diseases. Metformin is the most popular prescribed medication for the treatment of diabetes. Studies suggest that metformin is associated with vitamin B12 deficiency, which may impart adverse health complications. OBJECTIVE This review screens the literature to clarify the effect of metformin on vitamin B12 deficiency among type 2 diabetes mellitus patients. METHODS Google Scholar, PubMed, Research Gate, and Semantic Scholar, were searched for the association between metformin intake and vitamin B12 deficiency in type 2 diabetes mellitus patients using relevant keywords and their combinations. Selected studies were those conducted on patients taking metformin with no vitamin B12 supplement. Nineteen studies (fifteen observational studies and four randomized controlled trials) met the inclusion criteria. These studies were assessed for design, setting, study population, and overall quality. RESULTS There is a positive correlation between metformin intake and vitamin B12 deficiency. This has been accompanied by increased homocysteine and decreased folate levels. Despite the refuting of the findings, most studies showed that higher doses of metformin were strongly associated with lower vitamin B12 levels, while the duration of treatment was not. CONCLUSION Regular measurement of vitamin B12 levels during long-term metformin treatment is recommended. A clear policy should be in place to illuminate the importance of this screening in preventing vitamin B12 deficiency complications. Taking therapeutic supplements or injections of vitamin B12 along with a vitamin B12-rich diet may decrease the incidence of its deficiency in diabetic patients taking metformin.
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Affiliation(s)
- Rabie Khattab
- Clinical Nutrition Department, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Mayar Albannawi
- Clinical Nutrition Department, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Dua'a Alhajjmohammed
- Clinical Nutrition Department, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Zainab Alkubaish
- Clinical Nutrition Department, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Roqiuah Althani
- Clinical Nutrition Department, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Latifa Altheeb
- Clinical Nutrition Department, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Hala Ayoub
- Clinical Nutrition Department, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Hiba Mutwalli
- Clinical Nutrition Department, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Hussah Altuwajiry
- Clinical Nutrition Department, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Rasha Al-Sheikh
- Department of Family & Community Medicine, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Tunny Purayidathil
- Clinical Nutrition Department, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Omar Abuzaid
- Clinical Nutrition Department, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
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