Evidence map›Paper›PMID 31240625›Full record

ArticleDrug delivery and translational research2020

A novel controlled release tetrandrine-loaded PDLLA film: evaluation of drug release and anti-adhesion effects in vitro and in vivo.

Hai Yao, Zhidong Cao, Lei Peng, Jian Liu, Xiaoxing Zhang, Zhilong Deng

Open access · hybridAbstract read
In one paragraph

Article in Drug delivery and translational research, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed, 1 pooled it
1.9field-weighted citation impact, top 16% 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, 1 synthesis or guideline pooled it, 19 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Review
  5. Review
  6. Article
  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

6 authors at 1 institution in 1 country.

Hai YaoDepartment of Orthopedics, Affiliated Central Hospital, Chongqing University (The Fourth People's Hospital of Chongqing City), Chongqing, 400014, China.
Zhidong CaoDepartment of Orthopedics, Affiliated Central Hospital, Chongqing University (The Fourth People's Hospital of Chongqing City), Chongqing, 400014, China. czd2445@sina.com.ORCID 0000-0002-9314-1421
Lei PengDepartment of Orthopedics, Affiliated Central Hospital, Chongqing University (The Fourth People's Hospital of Chongqing City), Chongqing, 400014, China.
Jian LiuDepartment of Orthopedics, Affiliated Central Hospital, Chongqing University (The Fourth People's Hospital of Chongqing City), Chongqing, 400014, China.
Xiaoxing ZhangDepartment of Orthopedics, Affiliated Central Hospital, Chongqing University (The Fourth People's Hospital of Chongqing City), Chongqing, 400014, China.
Zhilong DengDepartment of Orthopedics, Affiliated Central Hospital, Chongqing University (The Fourth People's Hospital of Chongqing City), Chongqing, 400014, China.
Chongqing University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

To investigate the drug release and anti-adhesion effects of a TET (tetrandrine)-loaded PDLLA (poly-DL-lactide) film. Detection of TET release in vitro was carried out by high-performance liquid chromatography (HPLC) every 2 days following immersion of the tetrandrine-loaded PDLLA film in simulated body fluid until the TET content of the eluate could not be detected. For the in vivo test, TET-loaded PDLLA films were implanted into animal laminectomy models and positive and blank control groups were also set up. Postoperative serum tests, and macroscopic and histological analyses at 1, 4, 8, and 12 weeks, were used to assess the effects of the film. Statistical analyses were performed by one-way ANOVA. The drug release of the tetrandrine-loaded PDLLA film in vitro showed two phases with a second release peak. Ultimately, the duration of continuous delivery was up to 66 days and the cumulative delivery rate was up to 93.18%. Scores for the proliferation of epidural scars or adhesion of the dura mater in the test group were much lower than those for the two control groups. Histological analysis revealed the test group had fewer inflammatory cells and fibroblasts, as well as fewer extracellular collagen fibers, and a lower histology score than those of the two control groups at all time points. Tetrandrine-loaded PDLLA film is a novel controlled drug release and anti-adhesion material in vitro and in vivo.

Indexed as

AnimalsBenzylisoquinolinesChromatography, High Pressure LiquidCollagenDelayed-Action PreparationsDisease Models, AnimalLaminectomyPolyestersRabbitsRandom AllocationTissue AdhesionsBenzylisoquinolinesCollagenDelayed-Action PreparationsPolyesterspoly(lactide)tetrandrineAnti-adhesion filmControlled drug releaseEpidural fibrosisFBSSTetrandrine

Identifiers

PMID31240625
PMCPMC6978294
OpenAlexW2953502448

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.