Evidence map›Paper›PMID 22996566›Full record

ArticlePharmaceutical research2013

Nanoparticles for improved local retention after intra-articular injection into the knee joint.

Michael Morgen, David Tung, Britton Boras, Warren Miller, Anne-Marie Malfait, Micky Tortorella

Open access · hybridAbstract read
In one paragraph

Article in Pharmaceutical research, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers.

0numbers the graph read from it
0cells of the map it votes in
43citing papers in PubMed
3.0field-weighted citation impact, top 9% 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

43 citing papers in PubMed, 82 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Review
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  6. Article
  7. Functional Nanomaterials for the Treatment of Osteoarthritis.International journal of nanomedicine · 2024
    Review
  8. Article
  9. Application of magnetic particle imaging to evaluate nanoparticle fate in rodent joints.Journal of controlled release : official journal of the Controlled Release Society · 2023
    Article
  10. Article
  11. Article
  12. Review
  13. Article
  14. Article
  15. Review
  16. Biomaterial strategies for improved intra-articular drug delivery.Journal of biomedical materials research. Part A · 2021
    Review
  17. Article
  18. Article
  19. Article
  20. 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 3 institutions in 2 countries.

Michael MorgenBend Research Inc, 64550 Research Road, Bend, Oregon 97701, USA. mike.morgen@bendresearch.com
David Tung
Britton Boras
Warren Miller
Anne-Marie Malfait
Micky Tortorella
Chinese Academy of Sciences · CNRush University Medical Center · USUniversity of California, San Diego · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo evaluate using cationic polymeric nanoparticles that interact with hyaluronate to form ionically cross-linked hydrogels to increase the intra-articular retention time of osteoarthritis drugs in the synovial cavity.

methodsIn vitro tests included nanoparticle release from cross-linked hydrogels using syringe and membrane dissolution tests, viscosity measurement of synovial fluid containing hydrogels, and release-rate measurement for a model active conjugated to a cationically substituted dextran using a hydrolyzable ester linkage in a sink dissolution test. Nanoparticle retention after intra-articular injection into rat knees was measured in vivo using fluorescence molecular tomography.

resultsDiffusional and convective transport of cationic nanoparticles from ionically cross-linked hydrogels formed in synovial fluid was slower in vitro than for uncharged nanoparticles. Hydrogels formed after the nanoparticles were mixed with synovial fluid did not appreciably alter the viscosity of the synovial fluid in vitro. In vitro release of a conjugated peptide from the cationic nanoparticles was approximately 20% per week. After intra-articular injection in rat knees, 70% of the nanoparticles were retained in the joint for 1 week.

conclusionsThis study demonstrates the feasibility of using cationic polymeric nanoparticles to increase the retention of therapeutic agents in articular joints for indications such as osteoarthritis.

Indexed as

AnimalsDrug CarriersFemaleHumansHyaluronic AcidHydrogelsInjections, Intra-ArticularKnee JointNanoparticlesOsteoarthritisPeptidesRatsRats, Sprague-DawleySynovial FluidViscosityDrug CarriersHyaluronic AcidHydrogelsPeptides

Identifiers

PMID22996566
PMCPMC3524502
OpenAlexW2045086952

What OpenQuestion holds

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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.