Evidence map›Paper›PMID 34413642›Full record

ArticleInternational journal of nanomedicine2021

Fixed-Combination Eye Drops Based on Fluorometholone Nanoparticles and Bromfenac/Levofloxacin Solution Improve Drug Corneal Penetration.

Hiroko Otake, Ryoka Goto, Fumihiko Ogata, Takumi Isaka, Naohito Kawasaki, Shinichiro Kobayakawa, Toru Matsunaga, Noriaki Nagai

Open access · goldAbstract read
In one paragraph

Article in International journal of nanomedicine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
1.0field-weighted citation impact, top 29% 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

10 citing papers in PubMed, 15 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Review
  6. Article
  7. Article
  8. Article
  9. Review
  10. 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

8 authors at 2 institutions in 1 country.

Hiroko Otake *Faculty of Pharmacy, Kindai University, Higashi-Osaka, Osaka, 577-8502, Japan.
Ryoka Goto *Faculty of Pharmacy, Kindai University, Higashi-Osaka, Osaka, 577-8502, Japan.
Fumihiko OgataFaculty of Pharmacy, Kindai University, Higashi-Osaka, Osaka, 577-8502, Japan.
Takumi IsakaFaculty of Pharmacy, Kindai University, Higashi-Osaka, Osaka, 577-8502, Japan.
Naohito KawasakiFaculty of Pharmacy, Kindai University, Higashi-Osaka, Osaka, 577-8502, Japan.
Shinichiro KobayakawaDepartment of Ophthalmology, Nippon Medical School, Musashi-Kosugi Hospital, Kawasaki, Kanagawa, 211-8533, Japan.
Toru MatsunagaDesign and Development, SEED Co., Ltd., Kounosu-shi, Saitama, 369-0131, Japan.
Noriaki NagaiFaculty of Pharmacy, Kindai University, Higashi-Osaka, Osaka, 577-8502, Japan.
Kindai University · JPNippon Medical School Musashi Kosugi Hospital · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe multi-instillation of three commercially available (CA) eye drops [fluorometholone (FL)-, bromfenac (BF)- and levofloxacin (LV)-eye drops] has been used to manage pain and inflammation post-intraocular surgery. However, the multi-instillation of these three eye drops causes corneal damage, and the FL drops have the disadvantage of low ocular bioavailability. To overcome these problems, we prepared fixed-combination eye drops based on FL nanoparticles (FL-NPs) and BF/LV solution (nFBL-FC), and evaluated the corneal toxicity and transcorneal penetration of the nFBL-FC eye drops.

methodsFL powder was mixed in 2-hydroxypropyl-β-cyclodextrin solution containing benzalkonium chloride, mannitol and methylcellulose, and milled with a Bead Smash 12 (5500 rpm for 30 s×30 times). The BF/LV solution was then added to the milled-dispersions to be used as nFBL-FC. The FL, BF and LV concentrations were measured by HPLC methods, and transcorneal penetration was evaluated in rabbits.

resultsThe FL particle size in nFBL-FC was 40-150 nm, with only 0.0018% in liquid form. No aggregation of FL particles in the nFBL-FC was observed for 1 month. The viability of human corneal epithelial cells treated with nFBL-FC was remarkably higher than that of cells subjected to the multi-instillation of the corresponding three CA-eye drops. In addition, the corneal penetrations (AUC) of the FL, BF and LV in nFBL-FC were 4.9-, 1.8-, and 7.1-fold those of the corresponding CA-eye drops, respectively. Moreover, the caveolae-dependent endocytosis (CavME) inhibitor (nystatin) significantly prevented the transcorneal penetration of these drugs.

conclusionWe prepared fixed-combination eye drops based on FL-NPs and BF/LV solution (nFBL-FC), and show that high levels of FL-NPs and dissolved BF/LV (liquid drugs) can be delivered into the aqueous humor by the instillation of nFBL-FC. Further, we show that CavME is mainly related to the enhancement of transcorneal penetration of both the solid (NPs) and liquid drugs.

Indexed as

FluorometholoneNanoparticlesAnimalsBenzophenonesBromobenzenesCorneaLevofloxacinOphthalmic SolutionsRabbitsBenzophenonesbromfenacBromobenzenesFluorometholoneLevofloxacinOphthalmic Solutionsbromfenaccorneal permeabilityendocytosisfixed-combination eye dropsfluorometholonelevofloxacin

Identifiers

PMID34413642
PMCPMC8369340
OpenAlexW3189798325

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.