Evidence map›Paper›PMID 35714071›Full record

ArticlePloS one2022

Total collagen content and distribution is increased in human colon during advancing age.

Nicholas Baidoo, Ellie Crawley, Charles H Knowles, Gareth J Sanger, Abi Belai

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed, 2 pooled it
2.8field-weighted citation impact, top 7% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

22 citing papers in PubMed, 2 syntheses or guidelines pooled it, 28 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors at 2 institutions in 1 country.

Nicholas BaidooUniversity of Roehampton, School of Life Sciences, London, United Kingdom.ORCID 0000-0001-7017-2287
Ellie CrawleyFaculty of Medicine and Dentistry, Blizard Institute, Queen Mary University of London, London, United Kingdom.
Charles H KnowlesFaculty of Medicine and Dentistry, Blizard Institute, Queen Mary University of London, London, United Kingdom.
Gareth J SangerFaculty of Medicine and Dentistry, Blizard Institute, Queen Mary University of London, London, United Kingdom.
Abi BelaiUniversity of Roehampton, School of Life Sciences, London, United Kingdom.ORCID 0000-0001-9113-006X
Queen Mary University of London · GBUniversity of Roehampton · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe effect of ageing on total collagen content of human colon has been poorly investigated. The aim of this study was to determine if ageing altered total collagen content and distribution in the human colon.

methodsMacroscopically normal ascending colon was obtained at surgery from cancer patients (n = 31) without diagnosis of diverticular disease or inflammatory bowel disease. Masson's trichrome and Picrosirius red stains were employed to identify the total collagen content and distribution within the sublayers of the colonic wall for adult (22-60 years; 6 males, 6 females) and elderly (70 - 91years; 6 males, 4 female) patients. A hydroxyproline assay evaluated the total collagen concentration for adult (30-64 years; 9 male, 6 female) and elderly (66-91 years; 8 male, 8 female) patients. KEY

resultsHistological studies showed that the percentage mean intensity of total collagen staining in the mucosa, submucosa and muscularis externa was, respectively, 14(1.9) %, 74(3.2) % and 12(1.5) % in the adult ascending colon. Compared with the adults, the total collagen fibres content was increased in the submucosa (mean intensity; 163.1 ± 11.1 vs. 124.5 ± 7.8; P < 0.05) and muscularis externa (42.5 ± 8.0 vs. 20.6 ± 2.8; P < 0.01) of the elderly patients. There was no change in collagen content of the mucosa. The total collagen concentration was increased in the elderly by 16%. Sex-related differences were not found, and data were combined for analysis.

conclusionsGreater total collagen content was found in the submucosa and muscularis externa of the elderly human male and female colon. These changes may contribute to a possible loss of function with ageing.

Indexed as

CollagenColonAdultAgedAgingColon, AscendingFemaleHumansIntestinal MucosaMaleStaining and LabelingCollagen

Identifiers

PMID35714071
PMCPMC9205511
OpenAlexW4283009248

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.