Evidence map›Paper›PMID 27510760›Full record

ArticleScientific reports2016

Localized Down-regulation of P-glycoprotein by Focused Ultrasound and Microbubbles induced Blood-Brain Barrier Disruption in Rat Brain.

HongSeok Cho, Hwa-Youn Lee, Mun Han, Jong-Ryul Choi, Sanghyun Ahn, Taekwan Lee, Yongmin Chang, Juyoung Park

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 68 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
68citing papers in PubMed, 1 pooled it
5.4field-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

68 citing papers in PubMed, 1 synthesis or guideline pooled it, 117 citations in OpenAlex.

  1. Pooled it
  2. Focused Ultrasound for the Treatment of Circuit and Molecular Pathology in Parkinson's Disease.Movement disorders : official journal of the Movement Disorder Society · 2026
    Review
  3. Review
  4. Article
  5. Review
  6. Article
  7. Review
  8. Focused ultrasound augments the delivery and penetration of model therapeutics into cerebral cavernous malformations.Journal of controlled release : official journal of the Controlled Release Society · 2025
    Article
  9. Article
  10. Review
  11. Review
  12. Article
  13. Role of PScientific reports · 2025
    Article
  14. Review
  15. Article
  16. Review
  17. Review
  18. Review
  19. Article
  20. Targeting diffuse midline gliomas: The promise of focused ultrasound-mediated blood-brain barrier opening.Journal of controlled release : official journal of the Controlled Release Society · 2024
    Review

8 more citing papers are in PubMed but not listed here.

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

8 authors at 2 institutions in 1 country.

HongSeok ChoDaegu-Gyeongbuk Medical Innovation Foundation, Medical Device Development Center, Daegu, 41061, South Korea.
Hwa-Youn LeeDaegu-Gyeongbuk Medical Innovation Foundation, Medical Device Development Center, Daegu, 41061, South Korea.
Mun HanKyungpook National University, Department of Medical &Biological Engineering, Daegu, 41566, South Korea.
Jong-Ryul ChoiDaegu-Gyeongbuk Medical Innovation Foundation, Medical Device Development Center, Daegu, 41061, South Korea.
Sanghyun AhnDaegu-Gyeongbuk Medical Innovation Foundation, Laboratory Animal Center, Daegu, 41061, South Korea.
Taekwan LeeDaegu-Gyeongbuk Medical Innovation Foundation, Laboratory Animal Center, Daegu, 41061, South Korea.
Yongmin ChangKyungpook National University, Department of Medical &Biological Engineering, Daegu, 41566, South Korea.
Juyoung ParkDaegu-Gyeongbuk Medical Innovation Foundation, Medical Device Development Center, Daegu, 41061, South Korea.
Daegu-Gyeongbuk Medical Innovation Foundation · KRKyungpook National University · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Multi-drug resistant efflux transporters found in Blood-Brain Barrier (BBB) acts as a functional barrier, by pumping out most of the drugs into the blood. Previous studies showed focused ultrasound (FUS) induced microbubble oscillation can disrupt the BBB by loosening the tight junctions in the brain endothelial cells; however, no study was performed to investigate its impact on the functional barrier of the BBB. In this study, the BBB in rat brains were disrupted using the MRI guided FUS and microbubbles. The immunofluorescence study evaluated the expression of the P-glycoprotein (P-gp), the most dominant multi-drug resistant protein found in the BBB. Intensity of the P-gp expression at the BBB disruption (BBBD) regions was significantly reduced (63.2 ± 18.4%) compared to the control area. The magnitude of the BBBD and the level of the P-gp down-regulation were significantly correlated. Both the immunofluorescence and histologic analysis at the BBBD regions revealed no apparent damage in the brain endothelial cells. The results demonstrate that the FUS and microbubbles can induce a localized down-regulation of P-gp expression in rat brain. The study suggests a clinically translation of this method to treat neural diseases through targeted delivery of the wide ranges of brain disorder related drugs.

Indexed as

Blood-Brain BarrierDown-RegulationMicrobubblesAnimalsATP Binding Cassette Transporter, Subfamily B, Member 1BrainMaleRatsRats, Sprague-DawleyATP Binding Cassette Transporter, Subfamily B, Member 1

Identifiers

PMID27510760
PMCPMC4980618
OpenAlexW2512281096

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.