Evidence map›Paper›PMID 34124379›Full record

ReviewJGH open : an open access journal of gastroenterology and hepatology2021

Pseudomelanosis coli, its relation to laxative use and association with colorectal neoplasms: A comprehensive review.

Abdul Mohammed, Neethi Paranji, Amandeep Singh, Madhusudhan R Sanaka

Open access · goldAbstract readReview
In one paragraph

Review in JGH open : an open access journal of gastroenterology and hepatology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
0.8field-weighted citation impact, top 33% 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

7 citing papers in PubMed, 7 citations in OpenAlex.

  1. Review
  2. Melanosis of the bladder: Case study of a rare and obscure entity.International journal of surgery case reports · 2025
    Article
  3. Article
  4. Article
  5. Myths and misconceptions about childhood constipation.European journal of pediatrics · 2023
    Review
  6. Review
  7. Article
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

4 authors at 2 institutions in 1 country.

Abdul MohammedDepartment of Hospital Medicine Cleveland Clinic Foundation Cleveland Ohio USA.ORCID https://orcid.org/0000-0002-4402-9812
Neethi ParanjiDepartment of Gastroenterology and Hepatology MetroHealth Medical Center, Case Western Reserve University Cleveland Ohio USA.
Amandeep SinghDepartment of Gastroenterology and Hepatology Digestive Disease and Surgical Institute, Cleveland Clinic Foundation Cleveland Ohio USA.
Madhusudhan R SanakaDepartment of Gastroenterology and Hepatology Digestive Disease and Surgical Institute, Cleveland Clinic Foundation Cleveland Ohio USA.
Cleveland Clinic · USMetroHealth Medical Center · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Pseudomelanosis coli is historically associated with anthraquinone laxatives and is often used as a surrogate marker for chronic laxative use. The opioid epidemic has seen an increase in laxative use for chronic constipation. Anthraquinone laxatives have demonstrated tumorigenic potential in animal studies due to their apoptotic effects on colonic epithelial cells. Colorectal cancer is associated with significant mortality and morbidity worldwide. Human studies have not shown a significant correlation between anthraquinone laxative use, pseudomelanosis coli, and colorectal carcinoma. The characteristic pigmentation of pseudomelanosis also appears to be absent macroscopically and on histology of neoplastic epithelium. However, there appears to be a slightly higher risk of adenoma development. This has been attributed to a higher polyp detection rate during endoscopy on account of the color contrast between the polyp against a darker background of pseudomelanosis.

Indexed as

colorectal neoplasmslaxativespseudomelanosis

Identifiers

PMID34124379
PMCPMC8171148
OpenAlexW3157107019

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.