Evidence map›Paper›PMID 11934230›Full record

ArticlePharmaceutical research2002

Pharmaceutical evaluation of gas-filled microparticles as gene delivery system.

Stefanie Seemann, Peter Hauff, Marcus Schultze-Mosgau, Cathleen Lehmann, Regina Reszka

Abstract read
PubMed Publisher
In one paragraph

Article in Pharmaceutical research, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
–field-weighted citation impact
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

8 citing papers in PubMed.

  1. Article
  2. Polyplex-microbubble hybrids for ultrasound-guided plasmid DNA delivery to solid tumors.Journal of controlled release : official journal of the Controlled Release Society · 2012
    Article
  3. Review
  4. Article
  5. Microbubble Compositions, Properties and Biomedical Applications.Bubble science engineering and technology · 2009
    Article
  6. Review
  7. Review
  8. Current status and prospects for microbubbles in ultrasound theranostics.Wiley interdisciplinary reviews. Nanomedicine and nanobiotechnology
    Review
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.

Stefanie SeemannSchering AG, Research Laboratories, Berlin, Germany.
Peter Hauff
Marcus Schultze-Mosgau
Cathleen Lehmann
Regina Reszka

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo produce and characterize a nonviral ultrasound-controlled release system of plasmid DNA (pDNA) encapsulated in gas-filled poly(D,L-lactide-co-glycolide) microparticles (PLGA-MPs).

methodsDifferent cationic polymers were used to form pDNA/polymer complexes to enhance the stability of pDNA during microparticle preparation. The physico-acoustical properties of the microparticles, particle size, pDNA integrity, encapsulation efficiency and pDNA release behavior were studied in vitro.

resultsThe microparticles had an average particle size of around 5 microm. More than 50% of all microparticles contained a gas core, and when exposed to pulsed ultrasound as used for color Doppler imaging create a signal that yields typical color patterns (stimulated acoustic emission) as a result of the ultrasound-induced destruction of the microparticles. Thirty percent of the pDNA used was successfully encapsulated and approximately 10% of the encapsulated pDNA was released by ultrasound within 10 min.

conclusionsPlasmid DNA can be encapsulated in biodegradable gas-filled PLGA-MPs without hints for a structural disintegration. A pDNA release by ultrasound-induced microparticle-destruction could be shown in vitro.

Indexed as

Drug Delivery SystemsDrug Evaluation, PreclinicalGasesGenetic TherapyHumansLactic AcidMicrospheresParticle SizePlasmidsPolyglycolic AcidPolylactic Acid-Polyglycolic Acid CopolymerPolymersGasesLactic AcidPolyglycolic AcidPolylactic Acid-Polyglycolic Acid CopolymerPolymers

Identifiers

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.