Evidence map›Paper›PMID 30031864›Full record

ArticleInternational journal of pharmaceutics2018

Nanoparticle formulations that allow for sustained delivery and brain targeting of the neuropeptide oxytocin.

Rokon Uz Zaman, Nihal S Mulla, Keegan Braz Gomes, Cherilyn D'Souza, Kevin Sean Murnane, Martin J D'Souza

Abstract read
In one paragraph

Article in International journal of pharmaceutics, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
4.5field-weighted citation impact, top 6% 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

28 citing papers in PubMed, 53 citations in OpenAlex.

  1. Trial
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  3. Article
  4. Review
  5. Development,Drug delivery · 2025
    Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. Article
  11. Article
  12. Review
  13. Article
  14. Article
  15. Lipid-based nanoparticles via nose-to-brain delivery: a mini review.Frontiers in cell and developmental biology · 2023
    Review
  16. Review
  17. Article
  18. Review
  19. Physiological and Pathological Factors Affecting Drug Delivery to the Brain by Nanoparticles.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2021
    Review
  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 2 institutions in 1 country.

Rokon Uz ZamanDepartment of Pharmaceutical Sciences, Mercer University College of Pharmacy, Mercer University Health Sciences Center, Atlanta, GA, USA.
Nihal S MullaPharmaceutical Sciences Department, Drake University, Des Moines, IA 50311, USA.
Keegan Braz GomesDepartment of Pharmaceutical Sciences, Mercer University College of Pharmacy, Mercer University Health Sciences Center, Atlanta, GA, USA.
Cherilyn D'SouzaDepartment of Pharmaceutical Sciences, Mercer University College of Pharmacy, Mercer University Health Sciences Center, Atlanta, GA, USA.
Kevin Sean MurnaneDepartment of Pharmaceutical Sciences, Mercer University College of Pharmacy, Mercer University Health Sciences Center, Atlanta, GA, USA.
Martin J D'SouzaDepartment of Pharmaceutical Sciences, Mercer University College of Pharmacy, Mercer University Health Sciences Center, Atlanta, GA, USA. Electronic address: dsouza_mj@mercer.edu.
Mercer University Health Sciences Center · USDrake University · US

Funding

A novel neuropeptide brain delivery system for epilepsyR21NS100512 · NINDS · MERCER UNIVERSITY MACON · PI ESCAYG, ANDREW P, MURNANE, KEVIN SEAN · 2016 to 2017
$440k
NINDS NIH HHS R21 NS100512
6 · The paper itself

Abstract

Oxytocin is a promising candidate for the treatment of social-deficit disorders such as Autism Spectrum Disorder, but oxytocin cannot readily pass the blood-brain barrier. Moreover, oxytocin requires frequent dosing as it is rapidly metabolized in blood. We fabricated four polymeric nanoparticle formulations using poly(lactic-co-glycolic acid) (PLGA) or bovine serum albumin (BSA) as the base material. In order to target them to the brain, we then conjugated the materials to either transferrin or rabies virus glycoprotein (RVG) as targeting ligands. The formulations were characterized in vitro for size, zeta potential, encapsulation efficiency, and release profiles. All formulations showed slightly negative charges and sizes ranging from 100 to 278 nm in diameter, with RVG-conjugated BSA nanoparticles exhibiting the smallest sizes. No formulation was found to be immunogenic or cytotoxic. The encapsulation efficiency was ≥75% for all nanoparticle formulations. Release studies demonstrated that BSA nanoparticle formulation exhibited a faster initial burst of release compared to PLGA particles, in addition to later sustained release. This initial burst release would be favorable for clinical dosing as therapeutic effects could be quickly established, especially in combination with additional sustained release to maintain the therapeutic effects. Our size and release profile data indicate that RVG-conjugated BSA nanoparticles are the most favorable formulation for brain delivery of oxytocin.

Indexed as

Drug CarriersNanoparticlesOxytocinAnimalsBrainCell LineCell SurvivalDelayed-Action PreparationsDendritic CellsDrug LiberationGlycoproteinsLactic AcidMiceNitric OxidePolyglycolic AcidPolylactic Acid-Polyglycolic Acid CopolymerDelayed-Action PreparationsDrug CarriersGlycoproteinsLactic AcidNitric OxideOxytocinPolyglycolic AcidPolylactic Acid-Polyglycolic Acid CopolymerSerum Albumin, BovineTransferrinViral ProteinsAutismBlood-brain barrier (BBB)Brain deliveryNanoparticleOxytocin

Identifiers

PMID30031864
PMCPMC6092754
OpenAlexW2883702625

What OpenQuestion holds

Textmetadata
LicenceTDM
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.