Evidence map›Paper›PMID 32847030›Full record

ArticlePharmaceutics2020

Lutein-Loaded, Biotin-Decorated Polymeric Nanoparticles Enhance Lutein Uptake in Retinal Cells.

Pradeep Kumar Bolla, Vrinda Gote, Mahima Singh, Manan Patel, Bradley A Clark, Jwala Renukuntla

Open access · goldAbstract read
In one paragraph

Article in Pharmaceutics, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
2.9field-weighted citation impact, top 8% 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

20 citing papers in PubMed, 64 citations in OpenAlex.

  1. Review
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  6. Synthesis of metallic nanoparticles using biometabolites: mechanisms and applications.Biometals : an international journal on the role of metal ions in biology, biochemistry, and medicine · 2025
    Review
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  8. Article
  9. Article
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  12. Article
  13. Targeted co-delivery of curcumin and erlotinib by MoSJournal of nanobiotechnology · 2023
    Article
  14. Therapeutic Approaches for Age-Related Macular Degeneration.International journal of molecular sciences · 2022
    Review
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  16. Review
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  20. 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

6 authors at 3 institutions in 1 country.

Pradeep Kumar BollaDepartment of Basic Pharmaceutical Sciences, Fred Wilson School of Pharmacy, High Point University, High Point, NC 27262, USA.ORCID 0000-0001-5049-3550
Vrinda GoteDivision of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Missouri, 2464 Charlotte Street, Kansas City, MO 64108, USA.ORCID 0000-0002-8967-601X
Mahima SinghDepartment of Pharmaceutical Sciences, University of the Sciences in Philadelphia, Philadelphia, PA 19104, USA.ORCID 0000-0003-2505-6994
Manan PatelDepartment of Pharmaceutical Sciences, University of the Sciences in Philadelphia, Philadelphia, PA 19104, USA.
Bradley A ClarkDepartment of Basic Pharmaceutical Sciences, Fred Wilson School of Pharmacy, High Point University, High Point, NC 27262, USA.
Jwala RenukuntlaDepartment of Basic Pharmaceutical Sciences, Fred Wilson School of Pharmacy, High Point University, High Point, NC 27262, USA.
High Point University · USUniversity of the Sciences · USUniversity of Missouri–Kansas City · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Age related macular degeneration (AMD) is one of the leading causes of visual loss and is responsible for approximately 9% of global blindness. It is a progressive eye disorder seen in elderly people (>65 years) mainly affecting the macula. Lutein, a carotenoid, is an antioxidant, and has shown neuroprotective properties in the retina. However, lutein has poor bioavailability owing to poor aqueous solubility. Drug delivery to the posterior segment of the eye is challenging due to the blood-retina barrier. Retinal pigment epithelium (RPE) expresses the sodium-dependent multivitamin transporter (SMVT) transport system which selectively uptakes biotin by active transport. In this study, we aimed to enhance lutein uptake into retinal cells using PLGA-PEG-biotin nanoparticles. Lutein loaded polymeric nanoparticles were prepared using O/W solvent-evaporation method. Particle size and zeta potential (ZP) were determined using Malvern Zetasizer. Other characterizations included differential scanning calorimetry, FTIR, and in-vitro release studies. In-vitro uptake and cytotoxicity studies were conducted in ARPE-19 cells using flow cytometry and confocal microscopy. Lutein was successfully encapsulated into PLGA and PLGA-PEG-biotin nanoparticles (<250 nm) with uniform size distribution and high ZP. The entrapment efficiency of lutein was ≈56% and ≈75% for lutein-loaded PLGA and PLGA-PEG-biotin nanoparticles, respectively. FTIR and DSC confirmed encapsulation of lutein into nanoparticles. Cellular uptake studies in ARPE-19 cells confirmed a higher uptake of lutein with PLGA-PEG-biotin nanoparticles compared to PLGA nanoparticles and lutein alone. In vitro cytotoxicity results confirmed that the nanoparticles were safe, effective, and non-toxic. Findings from this study suggest that lutein-loaded PLGA-PEG-biotin nanoparticles can be potentially used for treatment of AMD for higher lutein uptake.

Indexed as

age-related macular degenerationARPE-19biotin-decorated nanoparticlesluteinmacular edemaPLGAPLGA–PEG–biotinpolymeric nanoparticlesretinatargeted therapy

Identifiers

PMID32847030
PMCPMC7558721
OpenAlexW3080856888

What OpenQuestion holds

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Registered trials

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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.