Evidence map›Paper›PMID 22794525›Full record

ArticleJournal of ocular pharmacology and therapeutics : the official journal of the Association for Ocular Pharmacology and Therapeutics2012

Evaluation of the intravenous and topical routes for ocular delivery of hesperidin and hesperetin.

Ramesh Srirangam, Ketan Hippalgaonkar, Bharathi Avula, Ikhlas A Khan, Soumyajit Majumdar

Abstract readComparative Study
In one paragraph

Article in Journal of ocular pharmacology and therapeutics : the official journal of the Association for Ocular Pharmacology and Therapeutics, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
0.5field-weighted citation impact, top 34% 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

6 citing papers in PubMed, 23 citations in OpenAlex.

  1. Article
  2. Review
  3. Ocular Delivery of Polyphenols: Meeting the Unmet Needs.Molecules (Basel, Switzerland) · 2021
    Review
  4. Article
  5. Evaluation of topical hesperetin matrix film for back-of-the-eye delivery.European journal of pharmaceutics and biopharmaceutics : official journal of Arbeitsgemeinschaft fur Pharmazeutische Verfahrenstechnik e.V · 2015
    Article
  6. 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

5 authors at 1 institution in 1 country.

Ramesh SrirangamDepartment of Pharmaceutics, School of Pharmacy, The University of Mississippi, University, Mississippi 38677, USA.
Ketan Hippalgaonkar
Bharathi Avula
Ikhlas A Khan
Soumyajit Majumdar
University of Mississippi · US

Funding

SOURCING, ACQUISITION AND DATABASE COREP20RR021929 · NCRR · UNIVERSITY OF MISSISSIPPI · PI DOERKSEN, ROBERT J · 2006 to 2010
$11.1M
Center of Research Excellence in Natural Products Neuroscience (CORE-NPN)P20GM104932 · NIGMS · UNIVERSITY OF MISSISSIPPI · PI MAJUMDAR, SOUMYAJIT · 2012 to 2016
$10.0M
NCRR NIH HHS P20 RR021929NCRR NIH HHS P20RR021929NIGMS NIH HHS P20 GM104932
6 · The paper itself

Abstract

purposeThe objective of this study was to determine the ocular bioavailability of hesperidin and hesperetin, especially with respect to their distribution into the posterior segment of the eye, following systemic and topical administration in rabbits.

methodsHesperidin and hesperetin were administered either intravenously or topically to male New Zealand white (NZW) rabbits. Vitreous humor and plasma samples were collected after intravenous administration and analyzed to estimate the concentrations of the parent compounds and their metabolites. Ocular tissue concentrations, obtained on topical administration of hesperidin and hesperetin, were also determined.

resultsIn the systemic circulation, hesperidin and hesperetin were rapidly metabolized into their glucuronides, which are extremely hydrophilic in nature. Vitreal samples did not demonstrate any detectable levels of hesperidin/hesperetin following intravenous administration. Topical administration produced significant concentrations of hesperidin/hesperetin in all the ocular tissues tested at the 1 and 3 hours time points postdosing, with hesperetin showing higher levels compared to hesperidin. However, only low levels were generated in the vitreous humor. Inclusion of a penetration enhancer, benzalkonium chloride (BAK), improved the back-of-the-eye hesperetin levels.

conclusionsOcular delivery of hesperidin/hesperetin via the systemic route does not seem to be feasible considering the rapid generation of the hydrophilic metabolites. Topical application appears to be more promising and needs to be further developed/refined.

Indexed as

Drug Delivery SystemsAdministration, OphthalmicAnimalsBenzalkonium CompoundsBiological AvailabilityExcipientsFeasibility StudiesGlucuronidesHesperidinHydrophobic and Hydrophilic InteractionsInjections, IntravenousMaleRabbitsTime FactorsVitreous BodyBenzalkonium CompoundsExcipientsGlucuronideshesperetinHesperidin

Identifiers

PMID22794525
PMCPMC3505831
OpenAlexW2129975347

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.