Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 1999 Jul;45(1):70-6.
doi: 10.1136/gut.45.1.70.

Small intestinal transit, absorption, and permeability in patients with AIDS with and without diarrhoea

D Sharpstone  1 , P Neild, R Crane, C Taylor, C Hodgson, R Sherwood, B Gazzard, I Bjarnason
Affiliations

Small intestinal transit, absorption, and permeability in patients with AIDS with and without diarrhoea

D Sharpstone et al. Gut. 1999 Jul.

Abstract

Background: Diarrhoea in AIDS is associated with anorexia and weight loss. The importance of gastrointestinal transit in such symptoms has not been addressed.

Aims: To assess jejunal to caecal transit times in subjects with AIDS related diarrhoea and weight loss and correlate these with measures of absorptive capacity and intestinal permeability.

Methods: Jejunal to caecal transit times were assessed in 20 seronegative controls and 60 HIV seropositive subjects from serum analysis of 3-O-methyl-D-glucose and sulphapyridine after ingestion of the monosaccharide and sulphasalazine in aqueous solution. The method also allows an estimation of gastric emptying times for liquids. Intestinal absorptive capacity and permeability were assessed by a combined test using 3-O-methyl-D-glucose, D-xylose, L-rhamnose, and lactulose.

Results: Gastric emptying was significantly delayed in all groups of patients with AIDS. Mean jejunal to caecal transit times were not significantly different between controls (246 (62) minutes) and patients without diarrhoea (AIDS, well: 278 (103) minutes; AIDS, wasting: 236 (68) minutes), cytomegalovirus colitis (289 (83) minutes), pathogen negative diarrhoea (192 (100) minutes), or microsporidiosis (190 (113) minutes), although 30% of patients had values below the control range. Patients with cryptosporidiosis differed significantly from controls (135 (35) minutes, p<0.0001), seven of 10 having rapid transit times. Absorptive capacity was reduced and intestinal permeability significantly increased in AIDS, but did not correlate significantly with transit times.

Conclusion: Small bowel transit is accelerated in many patients with AIDS, particularily in protozoal diarrhoea, but is not the sole explanation for malabsorption of monosaccharides.

PubMed Disclaimer

Figures

Figure 1
Figure 1
Representative permeation profiles of 3-O-methyl-D-glucose (open circles) and sulphapyridine (closed circles) after ingestion of the monosaccharide and sulphasalazine in two control subjects (A), two patients with AIDS (B), and two patients with Crohn's disease associated with small bowel bacterial overgrowth (C).
Figure 2
Figure 2
Individual jejunal to caecal transit times in the patients with AIDS. The two horizontal lines represent the upper and lower normal range as obtained from the 20 control subjects. Horizontal bars represent mean values and the vertical bars represent SD.
See this image and copyright information in PMC

References

    1. N Engl J Med. 1995 Jul 13;333(2):83-8 - PubMed
    1. AIDS. 1995 Jun;9(6):658-9 - PubMed
    1. Gut. 1995 Nov;37(5):623-9 - PubMed
    1. Am J Med. 1996 May;100(5):485-6 - PubMed
    1. Am J Med. 1996 May;100(5):487-95 - PubMed

Publication types

MeSH terms