Evidence map›Paper›PMID 28894363›Full record

ArticleInternational journal of nanomedicine2017

Ketoprofen-loaded polymer carriers in bigel formulation: an approach to enhancing drug photostability in topical application forms.

Velichka Andonova, Petya Peneva, George S Georgiev, Vencislava T Toncheva, Elisaveta Apostolova, Zhivko Peychev, Stela Dimitrova, Mariana Katsarova, Nadia Petrova, Margarita Kassarova

Open access · goldAbstract read
In one paragraph

Article in International journal of nanomedicine, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
1.2field-weighted citation impact, top 18% 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

16 citing papers in PubMed, 52 citations in OpenAlex.

  1. Review
  2. Review
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Fucoidan fromBiomedicines · 2023
    Article
  9. Review
  10. Article
  11. Review
  12. Article
  13. Article
  14. Article
  15. Review
  16. 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

10 authors at 3 institutions in 2 countries.

Velichka AndonovaDepartment of Pharmaceutical Sciences, Faculty of Pharmacy, Medical University-Plovdiv.
Petya PenevaDepartment of Pharmaceutical Sciences, Faculty of Pharmacy, Medical University-Plovdiv.
George S GeorgievFaculty of Chemistry and Pharmacy, Sofia University "St Kliment Ohridski", Sofia.
Vencislava T TonchevaFaculty of Chemistry and Pharmacy, Sofia University "St Kliment Ohridski", Sofia.
Elisaveta ApostolovaDepartment of Pharmacology and Drug Toxicology, Faculty of Pharmacy, Medical University-Plovdiv.
Zhivko PeychevDepartment of Medical Informatics, Biostatistics and e-learning, Faculty of Public Health, Medical University-Plovdiv.
Stela DimitrovaDepartment of Chemistry and Biochemistry, Faculty of Pharmacy, Medical University-Plovdiv, Plovdiv.
Mariana KatsarovaDepartment of Chemistry and Biochemistry, Faculty of Pharmacy, Medical University-Plovdiv, Plovdiv.
Nadia PetrovaInstitute of Mineralogy and Crystallography, Bulgarian Academy of Sciences, Sofia, Bulgaria.
Margarita KassarovaDepartment of Pharmaceutical Sciences, Faculty of Pharmacy, Medical University-Plovdiv.
Medical University Plovdiv · BGSofia University "St. Kliment Ohridski" · BGBulgarian Academy of Sciences · BG

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The purpose of the study was to investigate the stability and biopharmaceutical characteristics of ketoprofen, loaded in polymeric carriers, which were included into a bigel in a semisolid dosage form. The polymer carriers with in situ-included ketoprofen were obtained by emulsifier-free emulsion polymerization of the monomers in aqueous medium or a solution of the polymers used. The morphological characteristics of the carriers, the in vitro release and the photochemical stability of ketoprofen were evaluated. The model with optimal characteristics was included in a bigel formulation. The bigel was characterized in terms of pH, rheological behavior, spreadability, and in vitro drug release. Acute skin toxicity, antinociceptive activity, anti-inflammatory activity, and antihyperalgesic effects of the prepared bigel with ketoprofen-loaded polymer carrier were evaluated. The carriers of ketoprofen were characterized by a high yield and drug loading. The particle size distribution varied widely according to the polymer used, and a sustained release was provided for up to 6 hours. The polymer mixture poly(vinyl acetate) and hydroxypropyl cellulose as a drug carrier, alone or included in the bigel composition, improved the photostability of the drug compared with unprotected ketoprofen. The bigel with ketoprofen-loaded particles provided sustained release of the drug and had optimal rheological parameters. In vivo experiments on the bigel showed no skin inflammation or irritation. Four hours after its application, a well-defined analgesic, anti-inflammatory, and antihyperalgesic effect was registered. The polymer mixture of poly(vinyl acetate) and hydroxypropyl cellulose as a carrier of ketoprofen and the bigel in which it was included provided an enhanced photostability and sustained drug release.

Indexed as

Administration, TopicalAnalgesicsAnimalsAnti-Inflammatory Agents, Non-SteroidalDelayed-Action PreparationsDrug CarriersDrug LiberationDrug StabilityEmulsionsHydrogen-Ion ConcentrationKetoprofenMaleParticle SizePolymersPolyvinylsRats, WistarAnalgesicsAnti-Inflammatory Agents, Non-SteroidalDelayed-Action PreparationsDrug CarriersEmulsionsKetoprofenPolymerspolyvinyl acetatePolyvinylsantihyperalgesic effectantinociceptive activitybiphasic systemscarrageenan-induced edemaemulsifier-free radical polymerization

Identifiers

PMID28894363
PMCPMC5584911
OpenAlexW2745693756

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.