Evidence map›Paper›PMID 36408880›Full record

ArticleBrain and behavior2022

Preparation of gastrodin-modified dendrimer-entrapped gold nanoparticles as a drug delivery system for cerebral ischemia-reperfusion injury.

Wenqiang Huang, Lanlin Wang, Yanghong Zou, Xiangqian Ding, Xin Geng, Jinghui Li, Hexiang Zhao, Renli Qi, Shipeng Li

Open access · goldAbstract read
In one paragraph

Article in Brain and behavior, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
1.6field-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

12 citing papers in PubMed, 1 synthesis or guideline pooled it, 21 citations in OpenAlex.

  1. Nanodrugs for the Treatment of Ischemic Stroke: A Systematic Review.International journal of molecular sciences · 2023
    Pooled it
  2. Article
  3. Article
  4. Article
  5. Gold Nanoparticles in Neurological Diseases: A Review of Neuroprotection.International journal of molecular sciences · 2024
    Review
  6. Review
  7. Multiscale physics-basedFrontiers in drug delivery · 2024
    Review
  8. Review
  9. Article
  10. Review
  11. Review
  12. 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

9 authors at 1 institution in 1 country.

Wenqiang HuangDepartment of Neurosurgery, First Affiliated Hospital of Kunming Medical University, Kunming, China.
Lanlin WangDepartment of Neurosurgery, First Affiliated Hospital of Kunming Medical University, Kunming, China.
Yanghong ZouDepartment of Neurosurgery, First Affiliated Hospital of Kunming Medical University, Kunming, China.
Xiangqian DingDepartment of Neurosurgery, First Affiliated Hospital of Kunming Medical University, Kunming, China.
Xin GengDepartment of Neurosurgery, First Affiliated Hospital of Kunming Medical University, Kunming, China.
Jinghui LiDepartment of Neurosurgery, First Affiliated Hospital of Kunming Medical University, Kunming, China.
Hexiang ZhaoDepartment of Neurosurgery, First Affiliated Hospital of Kunming Medical University, Kunming, China.
Renli QiDepartment of Neurosurgery, First Affiliated Hospital of Kunming Medical University, Kunming, China.
Shipeng LiDepartment of Neurosurgery, First Affiliated Hospital of Kunming Medical University, Kunming, China.ORCID 0000-0001-7171-1377
Kunming Medical University · CN

Funding

Department of Science and Technology of Yun nan Province 202101AY070001-093Special Fund for Applied Basic Research of Yunnan Neurological Disease Diagnosis and Treatment Center ZX2019-03-05
6 · The paper itself

Abstract

objectiveThis study sought to evaluate the feasibility of multifunctional gastrodin (GAS)-containing nano-drug carrier system against cerebral ischemia-reperfusion injury (CIRI).

methodsThe drug-loaded nanocomposite (Au-G5.NHAc-PS/GAS) with certain encapsulation efficiency (EE) was prepared by physical adsorption method using different proportions of GAS and drug-carrying system (Au-G5.NHAc-PS). High-performance liquid chromatography was used to determine the drug loading and EE. Cultured rat astrocytes and hypothalamic neurons were assigned into four groups: PBS, Au-G5.NHAc-PS, Au-G5.NHAc-PS/GAS, and GAS. CCK-8 assay, flow cytometry, and quantitative real-time PCR were performed to examine the cell viability, apoptosis, and the expression of tumor necrosis factor-α (TNF-α), IL-1β, and IL-6 in the astrocytes and hypothalamic neurons, respectively. Cellular uptake of GAS and Au-G5.NHAc-PS/GAS was analyzed by using Hoechst 33342 staining. The animal model with focal cerebral ischemia was generated by middle cerebral artery occlusion (MCAO) in healthy male Sprague Dawley (SD) rats, and pathological changes of brain tissue and major organs in the rats were identified by hematoxylin and eosin (HE) staining. Apoptosis in rat astrocytes and hypothalamic neurons was detected by TUNEL staining and flow cytometry.

resultsAu-G5.NHAc-PS had a spherical shape with a uniform size of 157.3 nm. Among the nanoparticles, Au-G5.NHAc-PS/GAS with an EE of 70.3% displayed the best release delay effect. Moreover, we observed that in vitro cytotoxicity and cellular uptake of Au-G5.NHAc-PS/GAS were higher than those of GAS, whereas the expression of TNF-α, IL-1β, and IL-6 was significantly downregulated in Au-G5.NHAc-PS/GAS group as compared to G5.NHAc-PS group. Notably, HE staining revealed that although Au-G5.NHAc-PS/GAS had no toxic and side effects on the main organs of rats, it alleviated the damage of brain tissue in the MCAO rats. Besides, Au-G5.NHAc/GAS markedly reduced MCAO-induced apoptosis.

conclusionAu-G5.NHAc-PS showed favorable surface morphology, sustained drug release ability, no measurable toxicity, and good biocompatibility, indicating that GAS exerts anti-inflammatory and antiapoptotic effects on CIRI.

Indexed as

Brain IschemiaDendrimersMetal NanoparticlesReperfusion InjuryAnimalsBenzyl AlcoholsDrug Delivery SystemsGlucosidesGoldInfarction, Middle Cerebral ArteryInterleukin-6MaleRatsRats, Sprague-DawleyTumor Necrosis Factor-alphaBenzyl AlcoholsDendrimersgastrodinGlucosidesGoldInterleukin-6Tumor Necrosis Factor-alphaanti-inflammatoryCIRIcytotoxicityG5 PAMAM dendrimersGASMCAO

Identifiers

PMID36408880
PMCPMC9759136
OpenAlexW4309511638

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.