Evidence map›Paper›PMID 31390175›Full record

ArticleACS chemical neuroscience2019

Surface-Modified G4 PAMAM Dendrimers Cross the Blood-Brain Barrier Following Multiple Tail-Vein Injections in C57BL/6J Mice.

Bhairavi Srinageshwar, Anthony Dils, John Sturgis, Anna Wedster, Balachandar Kathirvelu, Stephanie Baiyasi, Douglas Swanson, Ajit Sharma, Gary L Dunbar, Julien Rossignol

Abstract read
In one paragraph

Article in ACS chemical neuroscience, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
–field-weighted citation impact
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

15 citing papers in PubMed.

  1. Article
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  7. A Glimpse into Dendrimers Integration in Cancer Imaging and Theranostics.International journal of molecular sciences · 2023
    Review
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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

10 authors.

Bhairavi Srinageshwar
Anthony Dils
John Sturgis
Anna Wedster
Balachandar Kathirvelu
Stephanie Baiyasi
Douglas Swanson
Gary L DunbarField Neurosciences Institute , St. Mary's of Michigan , Saginaw 48604 , Michigan , United States.

Funding

Non-Invasive Nanoparticle Platform for Tool Delivery to the BrainR21EY030012 · NEI · CENTRAL MICHIGAN UNIVERSITY · PI HOCHGESCHWENDER, UTE H, ROSSIGNOL, JULIEN · 2019 to 2019
$520k
NEI NIH HHS R21 EY030012
6 · The paper itself

Abstract

Intracranial injections are currently used to deliver drugs into the brain, as most drugs cannot cross the blood-brain barrier (BBB) following systemic injections. Moreover, multiple dosing is difficult with invasive techniques. Therefore, viable systemic techniques are necessary to facilitate treatment paradigms that require multiple dosing of therapeutics across the BBB. In this study, we show that mixed-surface fourth-generation poly(amidoamine) (PAMAM) dendrimers containing predominantly biocompatible hydroxyl groups and a few amine groups are taken up by cultured primary cortical neurons derived from mouse embryo. We also show that these dendrimers cross the BBB following their administration to healthy mice in multiple doses via tail-vein injections and are taken up by neurons and the glial cells as evidenced by appropriate staining methods. Besides the brain, the dendrimers were found mostly in the kidneys compared to other peripheral organs, such as liver, lungs, and spleen, implying that they may be readily excreted, thereby preventing potential toxic accumulation in the body. Our findings provide a proof-of-concept that appropriate surface modifications of dendrimers provide safe, biocompatible nanomaterial with the potential to deliver therapeutic cargo across the BBB into the brain via multiple tail-vein injections.

Indexed as

AnimalsBlood-Brain BarrierBrainCells, CulturedDendrimersMice, Inbred C57BLNeurogliaNylonsDendrimersNylonsPAMAM-G4blood-brain barriermultiple injectionsPAMAM dendrimersystemic injections, dendrimer surfacetail-vein injections

Identifiers

PMID31390175
PMCPMC9271804

What OpenQuestion holds

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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.