Evidence map›Paper›PMID 24950176›Full record

ArticlePloS one2014

Evaluation of an injectable thermosensitive hydrogel as drug delivery implant for ocular glaucoma surgery.

Lei Xi, Tao Wang, Feng Zhao, Qiongjuan Zheng, Xiaoning Li, Jing Luo, Ji Liu, Daping Quan, Jian Ge

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2014. 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
4.0field-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

14 citing papers in PubMed, 58 citations in OpenAlex.

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  13. A new strategy to sustained release of ocular drugs by one-step drug-loaded microcapsule manufacturing in hydrogel punctal plugs.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2017
    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

9 authors at 3 institutions in 2 countries.

Lei XiState Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-Sen University, Guangzhou, PR China.
Tao WangDSAPM and PCFM Lab, School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou, PR China.
Feng ZhaoState Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-Sen University, Guangzhou, PR China.
Qiongjuan ZhengDSAPM and PCFM Lab, School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou, PR China.
Xiaoning LiState Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-Sen University, Guangzhou, PR China; Aier Eye Hospital Group, Changsha, Hunan, China.
Jing LuoDepartment of Ophthalmology, Second Xiang Ya Hospital, Central south university, Changsha, PR China.
Ji LiuYale Eye Center, Yale University, New Haven, Connecticut, United States of America.
Daping QuanDSAPM and PCFM Lab, School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou, PR China.
Jian GeState Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-Sen University, Guangzhou, PR China.
Sun Yat-sen University · CNCentral South University · CNYale Cancer Center · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In this study, a biodegradable thermo-sensitive hydrogel from poly(trimethylene carbonate)15-F127-poly(trimethylene carbonate)15 (PTMC15-F127-PTMC15) was designed and evaluated as an injectable implant during ocular glaucoma filtration surgery in vivo and in vitro. Mitomycin C (MMC) was loaded into this hydrogel for controlled released to prolong the efficacy and to reduce the long-term toxicity. The properties of the hydrogel were confirmed using 1H NMR and gel permeation chromatography (GPC). Compared to the Pluronic F127 hydrogel, the PTMC15-F127-PTMC15 hydrogel showed a good solution-gel transition temperature at 37°C, a lower work concentration of 5% w/v and a longer mass loss time of more than 2 weeks. The in vitro study showed that the drug could be released from PTMC15-F127-PTMC15 (5% w/v) hydrogel for up to 16 days with only 57% of drug released in the first day. Moreover, the cell toxicity, which was tested via LDH and ANNEXIN V/PI, decreased within 72 h in human tenon's fibroblast cells (HTFs). The in vivo behavior in a rabbit glaucoma filtration surgery model indicated that this hydrogel loaded with 0.1 mg/ml MMC led to a better functional bleb with a prolonged mean bleb survival time (25.5±2.9 days). The scar tissue formation, new collagen deposition and myofibroblast generation appeared to be reduced upon histological and immunohistochemistry examinations, with no obvious side effects and inflammatory reactions. The in vitro and in vivo results demonstrated that this novel hydrogel is a safe and effective drug delivery candidate in ocular glaucoma surgery.

Indexed as

Drug Delivery SystemsAnimalsApoptosisBiocompatible MaterialsDrug ImplantsFiltering SurgeryGlaucomaHumansHydrogel, Polyethylene Glycol DimethacrylateMitomycinRabbitsBiocompatible MaterialsDrug ImplantsHydrogel, Polyethylene Glycol DimethacrylateMitomycin

Identifiers

PMID24950176
PMCPMC4065085
OpenAlexW2006866730

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.