Evidence map›Paper›PMID 31266990›Full record

ArticleScientific reports2019

Nasal delivery of donepezil HCl-loaded hydrogels for the treatment of Alzheimer's disease.

Sitah Al Harthi, Seyed Ebrahim Alavi, Mahasen Ali Radwan, Mona Mohamed El Khatib, Ibrahim Abdullah AlSarra

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 53 papers.

0numbers the graph read from it
0cells of the map it votes in
53citing papers in PubMed
5.7field-weighted citation impact, top 3% 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

53 citing papers in PubMed, 123 citations in OpenAlex.

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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 4 institutions in 3 countries.

Sitah Al HarthiDepartment of Pharmaceutical Science, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia.ORCID http://orcid.org/0000-0003-0031-5654
Seyed Ebrahim AlaviSchool of Pharmacy, The University of Queensland, Woolloongabba, 4102, Australia.ORCID http://orcid.org/0000-0003-4009-4921
Mahasen Ali RadwanDepartment of Pharmaceutics and Pharmaceutical Technology, College of Pharmacy, Egyptian Russian University, Bader City, Egypt.
Mona Mohamed El KhatibDepartment of Pharmaceutics, Faculty of Pharmacy, King Saud University, Riyadh, Saudi Arabia. mona.elkhatib@pharma.cu.edu.eg.
Ibrahim Abdullah AlSarraDepartment of Pharmaceutical Science, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia. ialsarra@ksu.edu.sa.
The University of Queensland · AUCairo University · EGEgyptian Russian University · EGKing Saud University · SA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

This study aims to prepare, characterize and evaluate the pharmacokinetics of liposomal donepezil HCl (LDH) dispersed into thiolated chitosan hydrogel (TCH) in rabbits. Various hydrogels including TCH were prepared, and after characterization, TCH was selected for subsequent evaluations, due to the promising results. TCH was then incorporated with LDH prepared by reverse phase evaporation method. The hydrogel was characterized using scanning electron microscope, dialysis membrane technique, and ultra-performance liquid chromatography methods. The optimized resultant was then evaluated in terms of pharmacokinetics in an in vivo environment. The mean size of LDH and drug entrapment efficiency were 438.7 ± 28.3 nm and 62.5% ± 0.6, respectively. The controlled drug release pattern results showed that the half-life of the loaded drug was approximately 3.5 h. Liposomal hydrogel and free liposomes were more stable at 4 °C compared to those in 20 °C. The pharmacokinetics study in the rabbit showed that the optimized hydrogel increased the mean peak drug concentration and area under the curve by 46% and 39%, respectively, through nasal route compared to the oral tablets of DH. Moreover, intranasal delivery of DH through liposomal hydrogel increased the mean brain content of the drug by 107% compared to the oral DH tablets. The results suggested that liposomes dispersed into TCH is a promising device for the nasal delivery of DH and can be considered for the treatment of Alzheimer's disease.

Indexed as

HydrogelsAdministration, IntranasalAlzheimer DiseaseAnimalsBiological AvailabilityCholinesterase InhibitorsDonepezilDrug LiberationDrug MonitoringDrug StabilityKineticsLiposomesRabbitsRheologyCholinesterase InhibitorsDonepezilHydrogelsLiposomes

Identifiers

PMID31266990
PMCPMC6606601
OpenAlexW2956026713

What OpenQuestion holds

Textmetadata
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.