Evidence map›Paper›PMID 19232011›Full record

ArticleJournal of ocular pharmacology and therapeutics : the official journal of the Association for Ocular Pharmacology and Therapeutics2009

Vitreal pharmacokinetics of biotinylated ganciclovir: role of sodium-dependent multivitamin transporter expressed on retina.

Kumar G Janoria, Sai H S Boddu, Zhiying Wang, Durga K Paturi, Swapan Samanta, Dhananjay Pal, Ashim K Mitra

Open access · greenAbstract read
In one paragraph

Article in Journal of ocular pharmacology and therapeutics : the official journal of the Association for Ocular Pharmacology and Therapeutics, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
1.9field-weighted citation impact, top 15% 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

19 citing papers in PubMed, 50 citations in OpenAlex.

  1. Intravitreal loading injection of ganciclovir with or without adjunctive oral valganciclovir for cytomegalovirus anterior uveitis.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2010
    Trial
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  10. A comprehensive insight on ocular pharmacokinetics.Drug delivery and translational research · 2016
    Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Prodrug strategies in ocular drug delivery.Medicinal chemistry (Shariqah (United Arab Emirates)) · 2012
    Review
  17. Article
  18. Review
  19. Ocular drug delivery.The AAPS journal · 2010
    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

7 authors at 1 institution in 1 country.

Kumar G JanoriaDivision of Pharmaceutical Sciences, School of Pharmacy, University of Missouri-Kansas City, Kansas City, Missouri 64110-2499, USA.
Sai H S Boddu
Zhiying Wang
Durga K Paturi
Swapan Samanta
Dhananjay Pal
Ashim K Mitra
University of Missouri–Kansas City · US

Funding

Ocular Disposition of Antimicrobial AgentsR01EY009171 · NEI · UNIVERSITY OF MISSOURI KANSAS CITY · PI MITRA, ASHIM K. · 1992 to 2010
$3.0M
Transscleral Transport & Polymeric Delivery of Antibody & Steroids for Macular EdR01EY010659 · NEI · UNIVERSITY OF MISSOURI KANSAS CITY · PI MITRA, ASHIM K. · 1996 to 2010
$2.5M
NEI NIH HHS R01 EY 09171-14NEI NIH HHS R01 EY 10659-12
6 · The paper itself

Abstract

purposeThe objective of this study was to investigate the role of sodium-dependent multiple vitamin transporter (SMVT) on Biotin-Ganciclovir (biotin-GCV) uptake on both human retinal pigmented epithelium cell line (ARPE-19) and rabbit retina. Study also aims to delineate the vitreal pharmacokinetics of biotin-GCV.

methodARPE-19 was employed to study the in vitro uptake experiments. New Zealand white albino rabbits were used to study in vivo retinal uptake and vitreal pharmacokinetics following intravitreal administration of biotin-GCV. In vitro uptake kinetics of [3H] biotin was determined at various initial concentrations. Competitive inhibition studies were conducted in the presence of unlabelled biotin, desthiobiotin, pantothenic acid, and lipoic acid. Various other uptake studies were performed to functionally characterize the transporter. To provide the molecular evidence of this transporter, Reverse Transcription-Polymerase Chain Reaction (RT-PCR) studies were also conducted. In vivo retinal/choroidal uptake studies were carried out with New Zealand albino rabbits. Unconscious animal ocular microdialysis studies were performed in order to evaluate intravitreal pharmacokinetics of GCV and Biotin-GCV.

resultsUptake of [3H] biotin into ARPE-19 was linear over 7 min, and found to be saturable with K(m) of 138.25 muM and Vmax of 38.85 pmol/min/mg protein. Both pantothenic acid and lipoic acid decreased significantly in uptake of biotin in the concentration-dependent manner. Uptake of biotin into ARPE-19 was found to be temperature, energy, and Na+ dependent but Cl(-)independent. Further, RT-PCR studies identified a band exhibiting presence of hSMVT on ARPE-19. Biotin-GCV is recognized by SMVT system present on the ARPE-19 and rabbit retina. Vitreal Pharmacokinetics profile reveals that most of the parameters were not significantly different for GCV and Biotin-GCV. However, use of Biotin-GCV may result in sustain levels of regenerated GCV in vitreous.

conclusionsSMVT was identified and functionally characterized on ARPE-19 cells. Further, Biotin-GCV shares this transport system. Vitreal pharmacokinetics of the conjugate was determined in unconscious rabbit model.

Indexed as

AnimalsArea Under CurveBiotinBiotinylationCell LineChoroidDrug Delivery SystemsGanciclovirHumansMaleProdrugsRabbitsRetinaRetinal Pigment EpitheliumSymportersTissue DistributionBiotinbiotin transporterGanciclovirProdrugsSymporters

Identifiers

PMID19232011
PMCPMC2958449
OpenAlexW2038217081

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.