Evidence map›Paper›PMID 32739615›Full record

ArticleThe journal of pain2021

Injectable PLGA-Coated Ropivacaine Produces A Long-Lasting Analgesic Effect on Incisional Pain and Neuropathic Pain.

Xue Tian, He Zhu, Shibin Du, Xue-Qing Zhang, Fuqing Lin, Fengtao Ji, Yung-Hao Tsou, Zhongyu Li, Yi Feng, Kathryn Ticehurst and 3 more

Open access · bronzeAbstract read
In one paragraph

Article in The journal of pain, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
1.4field-weighted citation impact, top 18% 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

14 citing papers in PubMed, 27 citations in OpenAlex.

  1. Trial
  2. How PLGA Microspheres are Emerging as a Key Drug Delivery System.International journal of nanomedicine · 2026
    Review
  3. Article
  4. Article
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  6. Review
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  12. Drug delivery to the central nervous system.Nature reviews. Materials · 2022
    Article
  13. Article
  14. Journal for immunotherapy of cancer · 2021
    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

13 authors at 5 institutions in 2 countries.

Xue TianDepartment of Anesthesiology, New Jersey Medical School, Rutgers, The State University of New Jersey, Newark, New Jersey; Department of Anesthesiology, Peking University People's Hospital, Beijing, China.
He ZhuDepartment of Chemical and Materials Engineering, New Jersey Institute of Technology, Newark, New Jersey.
Shibin DuDepartment of Anesthesiology, New Jersey Medical School, Rutgers, The State University of New Jersey, Newark, New Jersey.
Xue-Qing ZhangEngineering Research Center of Cell & Therapeutic Antibody Ministry of Education, School of Pharmacy, Shanghai Jiao Tong University, Shanghai, China.
Fuqing LinDepartment of Anesthesiology, New Jersey Medical School, Rutgers, The State University of New Jersey, Newark, New Jersey.
Fengtao JiDepartment of Anesthesiology, New Jersey Medical School, Rutgers, The State University of New Jersey, Newark, New Jersey.
Yung-Hao TsouDepartment of Chemical and Materials Engineering, New Jersey Institute of Technology, Newark, New Jersey.
Zhongyu LiDepartment of Chemical and Materials Engineering, New Jersey Institute of Technology, Newark, New Jersey.
Yi FengDepartment of Anesthesiology, Peking University People's Hospital, Beijing, China.
Kathryn TicehurstDepartment of Anesthesiology, New Jersey Medical School, Rutgers, The State University of New Jersey, Newark, New Jersey.
Stephen HannafordDepartment of Anesthesiology, New Jersey Medical School, Rutgers, The State University of New Jersey, Newark, New Jersey.
Xiaoyang XuDepartment of Chemical and Materials Engineering, New Jersey Institute of Technology, Newark, New Jersey; Department of Biomedical Engineering, New Jersey Institute of Technology, Newark, New Jersey.
Yuan-Xiang TaoDepartment of Anesthesiology, New Jersey Medical School, Rutgers, The State University of New Jersey, Newark, New Jersey. Electronic address: yuanxiang.tao@njms.rutgers.edu.
Rutgers, The State University of New Jersey · USNew Jersey Institute of Technology · USPeking University · CNPeking University People's Hospital · CNShanghai Jiao Tong University · CN

Funding

New Jersey Alliance for Clinical Translational Science: NJ ACTSUL1TR003017 · NCATS · RUTGERS BIOMEDICAL/HEALTH SCIENCES-RBHS · PI PANETTIERI, REYNOLD ALEXANDER · 2019 to 2023
$28.9M
NCATS NIH HHS UL1 TR003017
6 · The paper itself

Abstract

The management of persistent postsurgical pain and neuropathic pain remains a challenge in the clinic. Local anesthetics have been widely used as simple and effective treatment for these 2 disorders, but the duration of their analgesic effect is short. We here reported a new poly lactic-co-glycolic acid (PLGA)-coated ropivacaine that was continuously released in vitro for at least 6 days. Perisciatic nerve injection of the PLGA-coated ropivacaine attenuated paw incision-induced mechanical allodynia and heat hyperalgesia during the incisional pain period, and spared nerve injury-induced mechanical and cold allodynia for at least 7 days postinjection. This effect was dose-dependent. Perisciatic nerve injection of the PLGA-coated ropivacaine did not produce detectable inflammation, tissue irritation, or damage in the sciatic nerve and surrounding muscles at the injected site, dorsal root ganglion, spinal cord, or brain cortex, although the scores for grasping reflex were mildly and transiently reduced in the higher dosage-treated groups. PERSPECTIVE: Given that PLGA is an FDA-approved medical material, and that ropivacaine is used currently in clinical practice, the injectable PLGA-coated ropivacaine represents a new and highly promising avenue in the management of postsurgical pain and neuropathic pain.

Indexed as

Biocompatible MaterialsPolylactic Acid-Polyglycolic Acid CopolymerAnesthetics, LocalAnimalsDisease Models, AnimalDrug Delivery SystemsHyperalgesiaMaleNeuralgiaPostoperative PainRatsRats, Sprague-DawleyRopivacaineSciatic NerveAnesthetics, LocalBiocompatible MaterialsPolylactic Acid-Polyglycolic Acid CopolymerRopivacainelong-lasting analgesiaMicroparticlesneuropathic painpoly lactic-co-glycolic acidpostsurgical painropivacaine

Identifiers

PMID32739615
PMCPMC7855452
OpenAlexW3045575243

What OpenQuestion holds

Textmetadata
LicenceTDM
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.