Progress in understanding the relationship between food intolerance and functional gastrointestinal disorders

Abstract Objective Adolescents with chronic pain associated with functional gastrointestinal disorders (FGIDs) experience negative impacts on their health behaviors (i.e., sleep) and are at risk for a range of problems related to negative affect, which may serve to exacerbate one another in a reciprocal fashion. This study aimed to determine if the strength of the relationship between affect and sleep differs across community adolescents and adolescents with FGIDs. It was hypothesized that shorter sleep durations would be associated with more negative affect and longer sleep durations would be associated with more positive affect, and that group membership would moderate these relationships. Methods Twenty-five adolescents with FGIDs were compared with 25 matched peers to examine the differential association between affect and total sleep time (TST). Models were estimated using SAS PROC MIXED for inter- and intraindividual differences. Results Models predicting TST revealed a significant three-way interaction among weekday, group status, and negative affect. Simple slopes indicated that when negative affect is one standard deviation below the child’s own average on weekends, participants with FGIDs obtained significantly more sleep than those in the comparison group (β = 47.67, p < .05). Conclusions The findings of the present study show that when adolescents with FGIDs have lower negative affect on the weekend, when demands are likely reduced, they are able to obtain more TST. These findings confirm that unique relationships exist between negative affect and sleep duration for youth with FGIDs, and their interaction may hold value in understanding and addressing these targets.

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A systematic review of the association between fibromyalgia and functional gastrointestinal disorders

10.21203/rs.2.21966/v1 ◽

2020 ◽

Author(s):

Sharon Erdrich

Keyword(s):

Systematic Review ◽

Irritable Bowel Syndrome ◽

Health Care Systems ◽

Strong Association ◽

Functional Gastrointestinal Disorders ◽

Future Research ◽

Gastrointestinal Disorders ◽

Irritable Bowel ◽

Mixed Pattern ◽

The Relationship

Abstract Background Fibromyalgia and functional gastrointestinal disorders are frequently encountered in clinical settings. Common to both is significant burden on individuals and health care systems, an elusive aetiology and several comorbid conditions. While a relationship between irritable bowel syndrome and fibromyalgia has been demonstrated, a broader review of the relationship between fibromyalgia and other functional gut disorders has not been undertaken. Objectives This paper reports a systematic review of the published literature, identifying the comorbidity of functional gastrointestinal disorders in people with fibromyalgia. We discuss the clinical implications, limitations of current research, and areas of interest for future research Methods A systematic review of the databases Medline, Embase, CINAHL and Web of Science was undertaken in June 2019. Results were screened for original articles meeting strict criteria for identification of functional gastrointestinal disorders in adult subjects with fibromyalgia. ResultsFourteen articles were included investigating 1340 subjects with fibromyalgia, 363 healthy controls and 441 subjects with other pathologies. Functional gut disorders were matched to Rome II criteria for reporting and comparison. In addition to increased abdominal pain and functional bloating/gas, irritable bowel of mixed-pattern and constipation-types were more prevalent that diarrhoea-predominant irritable bowel in adults with fibromyalgia. One study reported the range of functional gastrointestinal disorders. Conclusion Existing research has focused on the relationship between irritable bowel syndrome and fibromyalgia, but sub-typing of irritable bowel syndrome is generally overlooked. A strong association with a range of functional gastrointestinal disorders is suggested. Further investigation is needed to determine the prevalence and relevance of the range of functional gastrointestinal disorders in patients with fibromyalgia.

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