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Are self-reported gastrointestinal symptoms among older adults associated with increased intestinal permeability and psychological distress?
Örebro universitet, Institutionen för medicinska vetenskaper. (Nutrition Gut Brain Interactions Research Centre; Nutrition and Physical Activity Research Centre)
Department of Medical Sciences, Faculty of Medicine and Health, Örebro University, Örebro, Sweden; Nutrition and Physical Activity Research Centre, Department of Medical Sciences, Faculty of Medicine and Health, Örebro University, Örebro, Sweden. (Nutrition Gut Brain Interactions Research Centre; Nutrition and Physical Activity Research Centre)
Örebro universitet, Institutionen för medicinska vetenskaper. (Nutrition Gut Brain Interactions Research Centre)
Örebro universitet, Institutionen för hälsovetenskaper. (Nutrition and Physical Activity Research Centre)ORCID-id: 0000-0002-6897-1853
Vise andre og tillknytning
2018 (engelsk)Inngår i: BMC Geriatrics, ISSN 1471-2318, E-ISSN 1471-2318, Vol. 18, nr 1, artikkel-id 75Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

BACKGROUND: Despite the substantial number of older adults suffering from gastrointestinal (GI) symptoms little is known regarding the character of these complaints and whether they are associated with an altered intestinal barrier function and psychological distress. Our aim was to explore the relationship between self-reported gut health, intestinal permeability and psychological distress among older adults.

METHODS: Three study populations were included: 1) older adults with GI symptoms (n = 24), 2) a group of older adults representing the general elderly population in Sweden (n = 22) and 3) senior orienteering athletes as a potential model of healthy ageing (n = 27). Questionnaire data on gut-health, psychological distress and level of physical activity were collected. Intestinal permeability was measured by quantifying zonulin in plasma. The level of systemic and local inflammation was monitored by measuring C-reactive protein (CRP), hydrogen peroxide in plasma and calprotectin in stool samples. The relationship between biomarkers and questionnaire data in the different study populations was illustrated using a Principal Component Analysis (PCA).

RESULTS: Older adults with GI symptoms displayed significantly higher levels of both zonulin and psychological distress than both general older adults and senior orienteering athletes. The PCA analysis revealed a separation between senior orienteering athletes and older adults with GI symptoms and showed an association between GI symptoms, psychological distress and zonulin.

CONCLUSIONS: Older adults with GI symptoms express increased plasma levels of zonulin, which might reflect an augmented intestinal permeability. In addition, this group suffer from higher psychological distress compared to general older adults and senior orienteering athletes. This relationship was further confirmed by a PCA plot, which illustrated an association between GI symptoms, psychological distress and intestinal permeability.

sted, utgiver, år, opplag, sider
BioMed Central, 2018. Vol. 18, nr 1, artikkel-id 75
Emneord [en]
Older adults; Gastrointestinal symptoms; Intestinal barrier function; Psychological distress
HSV kategori
Identifikatorer
URN: urn:nbn:se:oru:diva-66053DOI: 10.1186/s12877-018-0767-6ISI: 000428260300001PubMedID: 29554871Scopus ID: 2-s2.0-85044174344OAI: oai:DiVA.org:oru-66053DiVA, id: diva2:1193718
Forskningsfinansiär
Knowledge Foundation, 20110225
Merknad

Funding Agencies:

Bo Rydins stiftelse  F0514 

Faculty of Medicine and Health at Örebro University  

Diarrheal Disease Research Centre, Linköping University  

Tilgjengelig fra: 2018-03-27 Laget: 2018-03-27 Sist oppdatert: 2019-12-20bibliografisk kontrollert
Inngår i avhandling
1. Non-digestible Polysaccharides and Intestinal Barrier Function: specific focus on its efficacy in elderly and patients with Crohn’s disease
Åpne denne publikasjonen i ny fane eller vindu >>Non-digestible Polysaccharides and Intestinal Barrier Function: specific focus on its efficacy in elderly and patients with Crohn’s disease
2018 (engelsk)Doktoravhandling, med artikler (Annet vitenskapelig)
Abstract [en]

A large number of elderly suffer from gastrointestinal (GI) symptoms such as constipation and diarrhoea. The underlying mechanisms of age-acquired GI symptoms are not well studied but are necessary to clarify in order to recommend the right treatment. Non-digestible polysaccharides (NPS) are dietary fibres that could have beneficial effects on the intestinal immune system and barrier function, although their efficacy needs to be evaluated. Paper I showed that elderly with GI symptoms have significantly higher small intestinal permeability than a general elderly population, along with a stronger association to psychological distress. In Paper II we performed a randomised controlled trial with a general population of elderly that consumed either placebo, the NPS’s arabinoxylan or oat β-glucan for a period of 6 weeks. No protective effects were observed related to indomethacin-induced intestinal hyperpermeability, inflammatory markers, or self-reported health if compared to placebo. Paper III showed that stimulation with a yeast-derived β-glucan significantly attenuated Compound (C) 48/80-induced hyperpermeability in colonic biopsies from elderly with GI symptoms mounted in Ussing chambers, but not in young healthy adults. Arabinoxylan attenuated only C48/80-induced transcellular permeability in elderly but both paracellular and transcellular permeability in young healthy adults. Paper IV showed that the same yeast-derived β-glucan from paper III could cross the epithelium of ileal tissues from patients with Crohn’s disease (CD) and non-CD controls, mounted in Ussing chambers, and attenuate C48/80-induced hyperpermeability. In conclusion, we found that elderly with GI symptoms display a deteriorated barrier function and that administration of selective NPS can have beneficial effect on intestinal permeability in selective populations.

sted, utgiver, år, opplag, sider
Örebro: Örebro University, 2018. s. 121
Serie
Örebro Studies in Medicine, ISSN 1652-4063 ; 180
Emneord
Non-digestible polysachharides, beta-glucan, arabinoxylan, barrier function, permeability, Ussing chamber, elderly, Crohn’s disease
HSV kategori
Identifikatorer
urn:nbn:se:oru:diva-66055 (URN)978-91-7529-246-5 (ISBN)
Disputas
2018-06-08, Örebro universitet, Campus USÖ, hörsal C3, Södra Grev Rosengatan 32, Örebro, 13:00 (svensk)
Opponent
Veileder
Tilgjengelig fra: 2018-03-26 Laget: 2018-03-26 Sist oppdatert: 2018-05-08bibliografisk kontrollert

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