Evidence map›Paper›PMID 28137632›Full record

ArticleJournal of controlled release : official journal of the Controlled Release Society2017

Generation-6 hydroxyl PAMAM dendrimers improve CNS penetration from intravenous administration in a large animal brain injury model.

Fan Zhang, J Trent Magruder, Yi-An Lin, Todd C Crawford, Joshua C Grimm, Christopher M Sciortino, Mary Ann Wilson, Mary E Blue, Sujatha Kannan, Michael V Johnston and 2 more

Open access · greenAbstract read
In one paragraph

Article in Journal of controlled release : official journal of the Controlled Release Society, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed
6.7field-weighted citation impact, top 2% 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

36 citing papers in PubMed, 90 citations in OpenAlex.

  1. Article
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  5. Inhibition of microglial glutaminase alleviates chronic stress-induced neurobehavioral and cognitive deficits.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2025
    Article
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  11. Development and Initial Assessment of [Molecular imaging and biology · 2023
    Article
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  18. Dendrimer-2PMPA Delays Muscle Function Loss and Denervation in a Murine Model of Amyotrophic Lateral Sclerosis.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2022
    Article
  19. Glycosylation of PAMAM dendrimers significantly improves tumor macrophage targeting and specificity in glioblastoma.Journal of controlled release : official journal of the Controlled Release Society · 2021
    Article
  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

12 authors at 2 institutions in 1 country.

Fan ZhangCenter for Nanomedicine/Wilmer Eye Institute, Department of Ophthalmology, The Johns Hopkins School of Medicine, Baltimore, MD 21287, United States; Department of Materials Science and Engineering, The Johns Hopkins University, Baltimore, MD, 21218, United States.
J Trent MagruderDivision of Cardiac Surgery, Department of Surgery, The Johns Hopkins University School of Medicine, Baltimore, MD 21287, United States.
Yi-An LinCenter for Nanomedicine/Wilmer Eye Institute, Department of Ophthalmology, The Johns Hopkins School of Medicine, Baltimore, MD 21287, United States.
Todd C CrawfordDivision of Cardiac Surgery, Department of Surgery, The Johns Hopkins University School of Medicine, Baltimore, MD 21287, United States.
Joshua C GrimmDivision of Cardiac Surgery, Department of Surgery, The Johns Hopkins University School of Medicine, Baltimore, MD 21287, United States.
Christopher M SciortinoDivision of Cardiac Surgery, Department of Surgery, The Johns Hopkins University School of Medicine, Baltimore, MD 21287, United States.
Mary Ann WilsonHugo W. Moser Research Institute at Kennedy Krieger Inc., Baltimore, MD 21205, United States; Department of Neurology, The Johns Hopkins University School of Medicine, Baltimore, MD 21287, United States.
Mary E BlueHugo W. Moser Research Institute at Kennedy Krieger Inc., Baltimore, MD 21205, United States; Department of Neurology, The Johns Hopkins University School of Medicine, Baltimore, MD 21287, United States.
Sujatha KannanHugo W. Moser Research Institute at Kennedy Krieger Inc., Baltimore, MD 21205, United States; Department of Anesthesiology and Critical Care Medicine, The Johns Hopkins University School of Medicine, Baltimore, MD 21287, United States.
Michael V JohnstonHugo W. Moser Research Institute at Kennedy Krieger Inc., Baltimore, MD 21205, United States; Department of Neurology, The Johns Hopkins University School of Medicine, Baltimore, MD 21287, United States.
William A BaumgartnerDivision of Cardiac Surgery, Department of Surgery, The Johns Hopkins University School of Medicine, Baltimore, MD 21287, United States. Electronic address: wbaumgar@jhmi.edu.
Rangaramanujam M KannanCenter for Nanomedicine/Wilmer Eye Institute, Department of Ophthalmology, The Johns Hopkins School of Medicine, Baltimore, MD 21287, United States. Electronic address: krangar1@jhmi.edu.
Johns Hopkins University · USKennedy Krieger Institute · US

Funding

Excitotoxicity in Circulatory Arrest-Brain InjuryR01HL091541 · NHLBI · JOHNS HOPKINS UNIVERSITY · PI LAWTON, JENNIFER S · 2009 to 2025
$11.7M
Translational Neuroscience CoreU54HD079123 · NICHD · HUGO W. MOSER RES INST KENNEDY KRIEGER · PI JOHNSTON, MICHAEL VAN DOREN · 2014 to 2019
$7.9M
Postnatal combination therapy for cerebral palsyR01HD076901 · NICHD · JOHNS HOPKINS UNIVERSITY · PI RANGARAMANUJAM, KANNAN · 2014 to 2018
$1.7M
Nanotherapies for the treatment of neurodevelopmental disorders.R01EB018306 · NIBIB · JOHNS HOPKINS UNIVERSITY · PI RANGARAMANUJAM, KANNAN · 2014 to 2017
$1.5M
NHLBI NIH HHS R01 HL091541NIBIB NIH HHS R01 EB018306NICHD NIH HHS R01 HD076901NICHD NIH HHS U54 HD079123
6 · The paper itself

Abstract

Hypothermic circulatory arrest (HCA) provides neuroprotection during cardiac surgery but entails an ischemic period that can lead to excitotoxicity, neuroinflammation, and subsequent neurologic injury. Hydroxyl polyamidoamine (PAMAM) dendrimers target activated microglia and damaged neurons in the injured brain, and deliver therapeutics in small and large animal models. We investigated the effect of dendrimer size on brain uptake and explored the pharmacokinetics in a clinically-relevant canine model of HCA-induced brain injury. Generation 6 (G6, ~6.7nm) dendrimers showed extended blood circulation times and increased accumulation in the injured brain compared to generation 4 dendrimers (G4, ~4.3nm), which were undetectable in the brain by 48h after final administration. High levels of G6 dendrimers were found in cerebrospinal fluid (CSF) of injured animals with a CSF/serum ratio of ~20% at peak, a ratio higher than that of many neurologic pharmacotherapies already in clinical use. Brain penetration (measured by drug CSF/serum level) of G6 dendrimers correlated with the severity of neuroinflammation observed. G6 dendrimers also showed decreased renal clearance rate, slightly increased liver and spleen uptake compared to G4 dendrimers. These results, in a large animal model, may offer insights into the potential clinical translation of dendrimers.

Indexed as

Drug Delivery SystemsAnimalsBrainBrain InjuriesDendrimersDisease Models, AnimalDogsDrug CarriersKidneyLiverMaleDendrimersDrug CarriersPAMAM StarburstBiodistributionBrain penetrationCanine modelCSF/serum ratioDendrimerHypothermic circulatory arrest

Identifiers

PMID28137632
PMCPMC5323327
OpenAlexW2582792651

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.