Evidence map›Paper›PMID 33257542›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2020

Fouling-resistant zwitterionic polymers for complete prevention of postoperative adhesion.

Ershuai Zhang, Boyi Song, Yuanjie Shi, Hui Zhu, Xiangfei Han, Hong Du, Chengbiao Yang, Zhiqiang Cao

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
–field-weighted citation impact
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

29 citing papers in PubMed.

  1. Article
  2. Review
  3. Article
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  5. Materials and System Design for Self-Decision Bioelectronic Systems.Advanced materials (Deerfield Beach, Fla.) · 2026
    Review
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  7. Article
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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

8 authors.

Ershuai ZhangDepartment of Chemical Engineering and Materials Science, Wayne State University, Detroit, MI 48202.ORCID 0000-0001-6866-2762
Boyi SongDepartment of Chemical Engineering and Materials Science, Wayne State University, Detroit, MI 48202.
Yuanjie ShiDepartment of Chemical Engineering and Materials Science, Wayne State University, Detroit, MI 48202.
Hui ZhuDepartment of Chemical Engineering and Materials Science, Wayne State University, Detroit, MI 48202.ORCID 0000-0002-8601-669X
Xiangfei HanDepartment of Chemical Engineering and Materials Science, Wayne State University, Detroit, MI 48202.
Hong DuDepartment of Chemical Engineering and Materials Science, Wayne State University, Detroit, MI 48202.
Chengbiao YangDepartment of Chemical Engineering and Materials Science, Wayne State University, Detroit, MI 48202.
Zhiqiang CaoDepartment of Chemical Engineering and Materials Science, Wayne State University, Detroit, MI 48202 zcao@wayne.edu.

Funding

A Novel Oral Insulin Enabling Safe and Efficient Gastrointestinal Transport and AbsorptionR01DK123293 · NIDDK · WAYNE STATE UNIVERSITY · PI CAO, ZHIQIANG · 2019 to 2022
$1.7M
A Novel Formulation Enabling Longevity of Subcutaneous Insulin InfusionDP2DK111910 · NIDDK · WAYNE STATE UNIVERSITY · PI CAO, ZHIQIANG · 2016 to 2016
$1.3M
NIDDK NIH HHS DP2 DK111910NIDDK NIH HHS R01 DK123293
6 · The paper itself

Abstract

Postoperative adhesions are most common issues for almost any types of abdominal and pelvic surgery, leading to adverse consequences. Pharmacological treatments and physical barrier devices are two main approaches to address postoperative adhesions but can only alleviate or reduce adhesions to some extent. There is an urgent need for a reliable approach to completely prevent postoperative adhesions and to significantly improve the clinical outcomes, which, however, is unmet with current technologies. Here we report that by applying a viscous, cream-like yet injectable zwitterionic polymer solution to the traumatized surface, postoperative adhesion was completely and reliably prevented in three clinically relevant but increasingly challenging models in rats. The success rate of full prevention is over 93% among 42 animals tested, which is a major leap in antiadhesion performance. Clinically used Interceed film can hardly prevent the adhesion in any of these models. Unlike current antiadhesion materials serving solely as physical barriers, the "nonfouling" zwitterionic polymer functioned as a protective layer for antiadhesion applications with the inherent benefit of resisting protein/cell adhesions. The nonfouling nature of the polymer prevented the absorption of fibronectins and fibroblasts, which contribute to the initial and late-stage development of the adhesion, respectively. This is the key working mechanism that differentiated our "complete prevention" approach from current underperforming antiadhesion materials. This work implies a safe, effective, and convenient way to fully prevent postoperative adhesions suffered by current surgical patients.

Indexed as

AcrylamidesAnimalsDisease Models, AnimalHumansIntraoperative CarePeritoneal DiseasesPolymersPostoperative ComplicationsRatsSolutionsSurgical Procedures, OperativeTissue AdhesionsAcrylamidespoly(carboxybetaine acrylamide)PolymersSolutionsadhesiolysisantiadhesionhepatectomypostoperative adhesionzwitterionic polymer

Identifiers

PMID33257542
PMCPMC7749340

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.