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The serotonin receptor 3E variant is a risk factor for female IBS-D (2022)
Journal Article
Fritz, N., Berens, S., Dong, Y., Martínez, C., Schmitteckert, S., Houghton, L. A., …Niesler, B. (2022). The serotonin receptor 3E variant is a risk factor for female IBS-D. Journal of Molecular Medicine, 100, 1617–1627. https://doi.org/10.1007/s00109-022-02244-w

Irritable bowel syndrome (IBS) is a gut-brain disorder of multifactorial origin. Evidence of disturbed serotonergic function in IBS accumulated for the 5-HT3 receptor family. 5-HT3Rs are encoded by HTR3 genes and control GI function, and peristalsis... Read More about The serotonin receptor 3E variant is a risk factor for female IBS-D.

Genome-wide analysis of 53,400 people with irritable bowel syndrome highlights shared genetic pathways with mood and anxiety disorders (2021)
Journal Article
Eijsbouts, C., Zheng, T., Kennedy, N. A., Bonfiglio, F., Anderson, C. A., Moutsianas, L., …Parkes, M. (2021). Genome-wide analysis of 53,400 people with irritable bowel syndrome highlights shared genetic pathways with mood and anxiety disorders. Nature Genetics, 53(11), 1543-1552. https://doi.org/10.1038/s41588-021-00950-8

Irritable bowel syndrome (IBS) results from disordered brain–gut interactions. Identifying susceptibility genes could highlight the underlying pathophysiological mechanisms. We designed a digestive health questionnaire for UK Biobank and combined ide... Read More about Genome-wide analysis of 53,400 people with irritable bowel syndrome highlights shared genetic pathways with mood and anxiety disorders.

Small bowel water content assessed by MRI in health and disease: a collation of single-centre studies (2021)
Journal Article
Dellschaft, N., Hoad, C., Marciani, L., Gowland, P., & Spiller, R. (2022). Small bowel water content assessed by MRI in health and disease: a collation of single-centre studies. Alimentary Pharmacology and Therapeutics, 55(3), 327-338. https://doi.org/10.1111/apt.16673

Background: New developments in MRI have allowed the non-invasive, accurate measurement of the small bowel water content (SBWC). Aims: To collate studies measuring SBWC following ingestion of a range of foods in both health and disease to provide dat... Read More about Small bowel water content assessed by MRI in health and disease: a collation of single-centre studies.

The alternative serotonin transporter promoter P2 impacts gene function in females with irritable bowel syndrome (2021)
Journal Article
Mohr, S., Fritz, N., Hammer, C., Martínez, C., Berens, S., Schmitteckert, S., …Niesler, B. (2021). The alternative serotonin transporter promoter P2 impacts gene function in females with irritable bowel syndrome. Journal of Cellular and Molecular Medicine, 25(16), 8047-8061. https://doi.org/10.1111/jcmm.16736

Irritable bowel syndrome (IBS) is a gut-brain disorder in which symptoms are shaped by serotonin acting centrally and peripherally. The serotonin transporter gene SLC6A4 has been implicated in IBS pathophysiology, but the underlying genetic mechanism... Read More about The alternative serotonin transporter promoter P2 impacts gene function in females with irritable bowel syndrome.

Colonic gene expression and fecal microbiota in diarrhea-predominant irritable bowel syndrome: Increased toll-like receptor 4 but minimal inflammation and no response to mesalazine (2021)
Journal Article
Jalanka, J., Lam, C., Bennett, A., Hartikainen, A., Crispie, F., Finnegan, L. A., …Spiller, R. (2021). Colonic gene expression and fecal microbiota in diarrhea-predominant irritable bowel syndrome: Increased toll-like receptor 4 but minimal inflammation and no response to mesalazine. Journal of Neurogastroenterology and Motility, 27(2), 279-291. https://doi.org/10.5056/JNM20205

Background/Aims Diarrhea-predominant irritable bowel syndrome (IBS-D) has been previously associated with evidence of immune activation and altered microbiota. Our aim is to assess the effect of the anti-inflammatory agent, mesalazine, on inflammator... Read More about Colonic gene expression and fecal microbiota in diarrhea-predominant irritable bowel syndrome: Increased toll-like receptor 4 but minimal inflammation and no response to mesalazine.

Pain severity correlates with biopsy mediated colonic afferent activation but not psychological scores in IBS-D patients (2021)
Journal Article
Cibert-Goton, V., Lam, C., Lingaya, M., Falcone, Y., Wood, J. N., Bulmer, D. C., & Spiller, R. (2021). Pain severity correlates with biopsy mediated colonic afferent activation but not psychological scores in IBS-D patients. Clinical and Translational Gastroenterology, 12(2), Article e00313. https://doi.org/10.14309/ctg.0000000000000313

Objectives: Despite heterogeneity an increased prevalence of psychological co-morbidity and an altered pro-nociceptive gut microenvironment have repeatedly emerged as causative pathophysiology in patients with irritable bowel syndrome(IBS). Our aim w... Read More about Pain severity correlates with biopsy mediated colonic afferent activation but not psychological scores in IBS-D patients.

Chronic constipation in adults: Contemporary perspectives and clinical challenges. 2: Conservative, behavioural, medical and surgical treatment (2021)
Journal Article
Corsetti, M., Brown, S., Chiarioni, G., Dimidi, E., Dudding, T., Emmanuel, A., …Scott, S. M. (2021). Chronic constipation in adults: Contemporary perspectives and clinical challenges. 2: Conservative, behavioural, medical and surgical treatment. Neurogastroenterology and Motility, 33(7), Article e14070. https://doi.org/10.1111/nmo.14070

Background: Chronic constipation is a prevalent disorder that affects quality of life of patients and consumes resources in healthcare systems worldwide. In clinical practice, it is still considered a challenge as clinicians frequently are unsure as... Read More about Chronic constipation in adults: Contemporary perspectives and clinical challenges. 2: Conservative, behavioural, medical and surgical treatment.

The MRI colonic function test: Reproducibility of the Macrogol stimulus challenge (2020)
Journal Article
Wilkinson-Smith, V., Menys, A., Bradley, C., Corsetti, M., Marciani, L., Atkinson, D., …Hoad, C. (2020). The MRI colonic function test: Reproducibility of the Macrogol stimulus challenge. Neurogastroenterology and Motility, 32(11), Article e13942. https://doi.org/10.1111/nmo.13942

Background Magnetic resonance imaging (MRI) of the colonic response to a macrogol challenge drink can be used to assess the mechanisms underlying severe constipation. We measured the intra-subject reproducibility of MRI measures of colonic funct... Read More about The MRI colonic function test: Reproducibility of the Macrogol stimulus challenge.

Simultaneous measurement of gastric emptying of a soup test meal using MRI and gamma scintigraphy (2020)
Journal Article
Khalaf, A., Hoad, C. L., Blackshaw, E., Alyami, J., Spiller, R. C., Gowland, P. A., …Marciani, L. (2020). Simultaneous measurement of gastric emptying of a soup test meal using MRI and gamma scintigraphy. Diagnostics, 10(3), Article 170. https://doi.org/10.3390/diagnostics10030170

Measurement of gastric emptying is of clinical value for a range of conditions. Gamma scintigraphy (GS) has an established role, but the use of magnetic resonance imaging (MRI) has recently increased. Previous comparison studies between MRI and GS sh... Read More about Simultaneous measurement of gastric emptying of a soup test meal using MRI and gamma scintigraphy.