Evidence map›Paper›PMID 21287181›Full record

ArticlePediatric surgery international2011

Gender differences in reduced substance P (SP) in children with slow-transit constipation.

Yee Ian Yik, Pamela J Farmer, Sebastian K King, C W Chow, John M Hutson, Bridget R Southwell

Abstract readComparative Study
PubMed Publisher
In one paragraph

Article in Pediatric surgery international, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
1.1field-weighted citation impact, top 21% 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

16 citing papers in PubMed, 27 citations in OpenAlex.

  1. Article
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  7. Article
  8. Laxative Effects of Yangyin Tongmi Capsule on a Model of Diphenoxylate-Induced Constipation in Mice.Evidence-based complementary and alternative medicine : eCAM · 2020
    Article
  9. Article
  10. Article
  11. Review
  12. Article
  13. Review
  14. Predictors of slow colonic transit in children.Pediatric surgery international · 2015
    Article
  15. Article
  16. Development and developmental disorders of the enteric nervous system.Nature reviews. Gastroenterology & hepatology · 2013
    Review
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

6 authors at 3 institutions in 2 countries.

Yee Ian YikF Douglas Stephens Surgical Research Laboratory, Murdoch Childrens Research Institute, Melbourne, Australia. yiyik@um.edu.my
Pamela J Farmer
Sebastian K King
C W Chow
John M Hutson
Bridget R Southwell
Murdoch Children's Research Institute · AURoyal Children's Hospital · AUUniversity of Melbourne · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeAdult slow-transit constipation (STC) occurs predominantly in females and is associated with low numbers of substance P (SP)-containing nerves in colonic circular muscle.

aimTo determine if reduced SP nerves is female predominant in paediatric STC.

methodsChildren with STC were identified from records of more than 600 nuclear transit studies (NTS) and intestinal biopsies done for intractable chronic constipation between November 1998 and March 2009. Colonic seromuscular biopsies collected from hepatic and splenic flexures, and sigmoid colon were processed for immunohistochemistry. Nerve fibre density in circular muscle containing SP was measured qualitatively by a pathologist.

resultsEighty-eight children with chronic constipation had both NTS and intestinal biopsies. Seventy-eight children (52 M; age 2-15.5 years; mean 7.7 years) had STC diagnosed by NTS. SP was reduced in 10/26 girls, but only 11/52 boys.

conclusionIn this sample, STC was more common in boys than girls. However, in girls with STC, SP deficiency occurred in 40%, when compared with 20% of boys. During puberty, the percentage of girls with reduced SP decreased, whilst the percentage of boys increased. These results suggest that STC is heterogeneous and that there are some gender differences, the implication of which requires further investigation.

Indexed as

Gastrointestinal TransitActive Transport, Cell NucleusAdolescentBiopsyChildChild, PreschoolChronic DiseaseColon, TransverseConstipationFemaleFollow-Up StudiesHumansImmunohistochemistryIntestinal MucosaMalePrevalenceSubstance P

Identifiers

PMID21287181
OpenAlexW2163803087

What OpenQuestion holds

Textmetadata
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.