Evidence map›Paper›PMID 26396671›Full record

ArticleAmerican journal of translational research2015

Protective effects of perfluorooctyl-bromide nanoparticles on early brain injuries following subarachnoid hemorrhage in rats.

Huan Zhang, Rui Xu, Fei Xie, Wei Xu, Meng-Fei Zeng, Xin Wang, Ji Zhu

Open access · greenAbstract read
In one paragraph

Article in American journal of translational research, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed, 1 pooled it
0.7field-weighted citation impact, top 26% 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

6 citing papers in PubMed, 1 synthesis or guideline pooled it, 6 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Review
  4. Article
  5. Article
  6. 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

7 authors at 2 institutions in 2 countries.

Huan ZhangDepartment of Neurosurgery, The First Affiliated Hospital of Chongqing Medical University Chongqing 400016, China.
Rui XuDepartment of Neurosurgery, The First Affiliated Hospital of Chongqing Medical University Chongqing 400016, China.
Fei XieDepartment of Neurosurgery, The First Affiliated Hospital of Chongqing Medical University Chongqing 400016, China.
Wei XuDepartment of Neurosurgery, The First Affiliated Hospital of Chongqing Medical University Chongqing 400016, China.
Meng-Fei ZengDepartment of Neurosurgery, The First Affiliated Hospital of Chongqing Medical University Chongqing 400016, China.
Xin WangDepartment of Neurosurgery, Brigham and Women's Hospital, Harvard Medical School Boston, Massachusetts 02115, USA.
Ji ZhuDepartment of Neurosurgery, The First Affiliated Hospital of Chongqing Medical University Chongqing 400016, China.
The Affiliated Yongchuan Hospital of Chongqing Medical University · CNBrigham and Women's Hospital · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

To investigate the protective effects of perfluorooctyl-bromide (PFOB) nanoparticles on early brain injury (EBI) following subarachnoid hemorrhage (SAH), a total of 120 rats were randomly assigned to the following groups: Sham operation group (n = 40), SAH group (n = 40), and SAH + PFOB group (n = 40). Endovascular perforation was performed to induce subarachnoid hemorrhage. Brain water content was measured 24 h after surgery. Meanwhile, morphological changes in the rat hippocampal CA1 region were examined using light and transmission electron microscopy. The rate of neuronal apoptosis in rat hippocampal CA1 region was determined using TUNEL assay. Protein and mRNA expression levels of Caspase-3, Bax, and Bcl-2 were measured using western blot and RT-PCR assays 12, 24, 48, and 72 h after surgery. Compared to the SAH group, the SAH + PFOB group had significantly lower brain water content (P<0.01), with alleviated morphological abnormalities in HE-stained neurons and significantly decreased neurons with karyopyknosis and hyperchromatism in the hippocampal CA1 region. Electron microscopy revealed reduction of neuronal apoptosis, alleviation of glial cell swelling, and mitigation of perivascular edema in the hippocampal region. Immunohistochemical analysis showed that the expression of apoptosis-related factors Caspase-3 and Bax was significantly reduced, while that of the anti-apoptotic factor Bcl-2 was significantly increased. TUNEL staining showed that neuronal apoptosis was significantly reduced in the hippocampal CA1 region (P<0.01). RT-PCR and Western-blot data indicated that expressions of Caspase-3 and Bax were both significantly reduced, while bcl-2 expression was increased significantly at 12, 24, 48, and 72 h after SAH (P<0.01). Together, our data support that PFOB nanoparticles with high oxygen content could counteract ischemia and hypoxia, block neuronal apoptotic pathways, reduce neuronal apoptosis, and therefore, achieve neuroprotective effects in EBI following SAH.

Indexed as

apoptosisearly brain injuryneuroprotectionperfluorooctyl-bromideSubarachnoid hemorrhage

Identifiers

PMID26396671
PMCPMC4568796
OpenAlexW2397239990

What OpenQuestion holds

Textmetadata
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.