Evidence map›Paper›PMID 19543956›Full record

ArticlePharmaceutical research2009

Hydrogel matrix entrapping PLGA-paclitaxel microspheres: drug delivery with near zero-order release and implantability advantages for malignant brain tumour chemotherapy.

Sudhir Hulikal Ranganath, Irene Kee, William B Krantz, Pierce Kah-Hoe Chow, Chi-Hwa Wang

Abstract read
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In one paragraph

Article in Pharmaceutical research, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
6.7field-weighted citation impact, top 3% 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

32 citing papers in PubMed, 109 citations in OpenAlex.

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  15. Electrospray for generation of drug delivery and vaccine particles applied in vitro and in vivo.Materials science & engineering. C, Materials for biological applications · 2019
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  20. Nanotherapeutic systems for local treatment of brain tumors.Wiley interdisciplinary reviews. Nanomedicine and nanobiotechnology · 2018
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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

5 authors at 2 institutions in 1 country.

Sudhir Hulikal RanganathDepartment of Chemical and Biomolecular Engineering, National University of Singapore, Singapore.
Irene Kee
William B Krantz
Pierce Kah-Hoe Chow
Chi-Hwa Wang
National University of Singapore · SGSingapore General Hospital · SG

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo develop paclitaxel-delivering PLGA microspheres entrapped in a gel matrix with sustained drug release properties and implantability advantages for local glioma chemotherapy.

methodsPaclitaxel-loaded PLGA microspheres were fabricated using electrohydrodynamic atomization and entrapped by electrospray and gelation. The physicochemical characterizations were performed using scanning electron microscopy and differential scanning calorimetry. The influence of various parameters on the disintegration time was investigated. In vitro release of paclitaxel was quantified using high performance liquid chromatography. Cytotoxicity of the formulations was assessed by the quantification of IC(50) and caspase-3 activity against C6 glioma cells in vitro. The formulations were tested against a subcutaneous C6 glioma tumour in mice.

resultsHighly monodisperse gel beads containing a uniform microsphere distribution were obtained. Gelation using Ca(2+) ions ensured entrapment of microspheres with high loading efficiency. With an increase in the gelation time, gelling bath concentration and decrease in microsphere loading, it was more difficult to disintegrate the beads and release the microspheres. The formulations demonstrated sustained drug release for more than 60 days at a near-constant rate and a low initial burst. Cell culture studies proved the cytotoxicity against C6 glioma and improved performance in comparison to Taxol. The formulations could reduce subcutaneous tumour volume to a greater extent compared to Taxol and the control.

conclusionsPaclitaxel-loaded PLGA microspheres entrapped in an alginate gel matrix could be potential local chemotherapy implants to treat malignant glioma with critical advantages of implantability and sustained drug release with low initial burst.

Indexed as

HydrogelsAnimalsAntineoplastic Agents, PhytogenicApoptosisBrain NeoplasmsCalorimetry, Differential ScanningCell Line, TumorLactic AcidMicroscopy, Electron, ScanningMicrospheresPaclitaxelPolyglycolic AcidPolylactic Acid-Polyglycolic Acid CopolymerRatsAntineoplastic Agents, PhytogenicHydrogelsLactic AcidPaclitaxelPolyglycolic AcidPolylactic Acid-Polyglycolic Acid Copolymer

Identifiers

PMID19543956
OpenAlexW1965894523

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.