Evidence map›Paper›PMID 26790145›Full record

ArticleBiomaterials2016

Localized delivery of low-density lipoprotein docosahexaenoic acid nanoparticles to the rat brain using focused ultrasound.

Rohit S Mulik, Chenchen Bing, Michelle Ladouceur-Wodzak, Imalka Munaweera, Rajiv Chopra, Ian R Corbin

Abstract read
In one paragraph

Article in Biomaterials, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed
5.6field-weighted citation impact, top 4% 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

31 citing papers in PubMed, 62 citations in OpenAlex.

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  7. Recent Development of LDL-Based Nanoparticles for Cancer Therapy.Pharmaceuticals (Basel, Switzerland) · 2022
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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

6 authors at 3 institutions in 1 country.

Rohit S MulikAdvanced Imaging Research Center, University of Texas Southwestern Medical Center at Dallas, Dallas, TX 75390, USA.
Chenchen BingRadiology, University of Texas Southwestern Medical Center at Dallas, Dallas, TX 75390, USA.
Michelle Ladouceur-WodzakRadiology, University of Texas Southwestern Medical Center at Dallas, Dallas, TX 75390, USA.
Imalka MunaweeraRadiology, University of Texas Southwestern Medical Center at Dallas, Dallas, TX 75390, USA.
Rajiv ChopraAdvanced Imaging Research Center, University of Texas Southwestern Medical Center at Dallas, Dallas, TX 75390, USA; Radiology, University of Texas Southwestern Medical Center at Dallas, Dallas, TX 75390, USA.
Ian R CorbinAdvanced Imaging Research Center, University of Texas Southwestern Medical Center at Dallas, Dallas, TX 75390, USA; Internal Medicine, University of Texas Southwestern Medical Center at Dallas, Dallas, TX 75390, USA. Electronic address: ian.corbin@utsouthwestern.edu.
The University of Texas Southwestern Medical Center · USAdvanced Imaging Research (United States) · USSouthwestern Medical Center · US

Funding

UT Southwestern Medical Center Simmons Comprehensive Cancer CenterP30CA142543 · NCI · UT SOUTHWESTERN MEDICAL CENTER · PI Sandi Leigh Pruitt · 2010 to 2026
$53.7M
UT Southwestern Small Animal Imaging ResourceU24CA126608 · NCI · UT SOUTHWESTERN MEDICAL CENTER · PI MASON, RALPH P., SHERRY, DEAN · 2007 to 2011
$2.3M
NCI NIH HHS 5P30 CA142543-05NCI NIH HHS P30 CA142543NCI NIH HHS U24 CA126608
6 · The paper itself

Abstract

Focused ultrasound exposures in the presence of microbubbles can achieve transient, non-invasive, and localized blood-brain barrier (BBB) opening, offering a method for targeted delivery of therapeutic agents into the brain. Low-density lipoprotein (LDL) nanoparticles reconstituted with docosahexaenoic acid (DHA) could have significant therapeutic value in the brain, since DHA is known to be neuroprotective. BBB opening was achieved using pulsed ultrasound exposures in a localized brain region in normal rats, after which LDL nanoparticles containing the fluorescent probe DiR (1,1'-Dioctadecyl-3,3,3',3'-Tetramethylindotricarbocyanine Iodide) or DHA were administered intravenously. Fluorescent imaging of brain tissue from rats administered LDL-DiR demonstrated strong localization of fluorescence signal in the exposed hemisphere. LDL-DHA administration produced 2 × more DHA in the exposed region of the brain, with a corresponding increase in Resolvin D1 levels, indicating DHA was incorporated into cells and metabolized. Histological evaluation did not indicate any evidence of increased tissue damage in exposed brain regions compared to normal brain. This work demonstrates that localized delivery of DHA to the brain is possible using systemically-administered LDL nanoparticles combined with pulsed focused ultrasound exposures in the brain. This technology could be used in regions of acute brain injury or as a means to target infiltrating tumor cells in the brain.

Indexed as

Drug Delivery SystemsUltrasonicsAnimalsBlood-Brain BarrierBrainCarbocyaninesDocosahexaenoic AcidsFemaleHumansLipoproteins, LDLMetabolomeNanoparticlesRats, Sprague-DawleyReproducibility of ResultsStereotaxic Techniques1,1'-dioctadecyl-3,3,3',3'-tetramethylindotricarbocyanineCarbocyaninesDocosahexaenoic AcidsLipoproteins, LDLBloodbrain-barrierBrainFocused ultrasoundLipoproteinNanoparticleOmega-3 fatty acid

Identifiers

PMID26790145
PMCPMC4754139
OpenAlexW2223036396

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.