↓ Skip to main content

Cerebral microvascular dysfunction in metabolic syndrome is exacerbated by ischemia–reperfusion injury

Overview of attention for article published in BMC Neuroscience, September 2017
Altmetric Badge

Mentioned by

twitter
3 tweeters

Citations

dimensions_citation
14 Dimensions

Readers on

mendeley
21 Mendeley
You are seeing a free-to-access but limited selection of the activity Altmetric has collected about this research output. Click here to find out more.
Title
Cerebral microvascular dysfunction in metabolic syndrome is exacerbated by ischemia–reperfusion injury
Published in
BMC Neuroscience, September 2017
DOI 10.1186/s12868-017-0384-x
Pubmed ID
Authors

Nathalie Obadia, Marcos Adriano Lessa, Anissa Daliry, Raquel Rangel Silvares, Fabiana Gomes, Eduardo Tibiriçá, Vanessa Estato

Abstract

Metabolic syndrome (MetS) is associated with an increased risk of cerebrovascular diseases, including cerebral ischemia. Microvascular dysfunction is an important feature underlying the pathophysiology of cerebrovascular diseases. In this study, we aimed to investigate the impacts of ischemia and reperfusion (IR) injury on the cerebral microvascular function of rats with high-fat diet-induced MetS. We examined Wistar rats fed a high-fat diet (HFD) or normal diet (CTL) for 20 weeks underwent 30 min of bilateral carotid artery occlusion followed by 1 h of reperfusion (IR) or sham surgery. Microvascular blood flow was evaluated on the parietal cortex surface through a cranial window by laser speckle contrast imaging, functional capillary density, endothelial function and endothelial-leukocyte interactions by intravital videomicroscopy. Lipid peroxidation was assessed by TBARs analysis, the expression of oxidative enzymes and inflammatory markers in the brain tissue was analyzed by real-time PCR. The cerebral IR in MetS animals induced a functional capillary rarefaction (HFD IR 117 ± 17 vs. CTL IR 224 ± 35 capillary/mm(2); p < 0.05), blunted the endothelial response to acetylcholine (HFD IR -16.93% vs. CTL IR 16.19% from baseline inner diameter p < 0.05) and increased the endothelial-leukocyte interactions in the venules in the brain. The impact of ischemia on the cerebral microvascular blood flow was worsened in MetS animals, with a marked reduction of cerebral blood flow, exposing brain tissue to a higher state of hypoxia. Our results demonstrate that during ischemia and reperfusion, animals with MetS are more susceptible to alterations in the cerebral microcirculation involving endothelial dysfunction and oxidative stress events.

Twitter Demographics

The data shown below were collected from the profiles of 3 tweeters who shared this research output. Click here to find out more about how the information was compiled.

Mendeley readers

The data shown below were compiled from readership statistics for 21 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 21 100%

Demographic breakdown

Readers by professional status Count As %
Student > Bachelor 4 19%
Student > Ph. D. Student 3 14%
Student > Doctoral Student 3 14%
Student > Master 2 10%
Other 1 5%
Other 2 10%
Unknown 6 29%
Readers by discipline Count As %
Neuroscience 2 10%
Biochemistry, Genetics and Molecular Biology 2 10%
Psychology 2 10%
Computer Science 1 5%
Agricultural and Biological Sciences 1 5%
Other 4 19%
Unknown 9 43%

Attention Score in Context

This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 10 September 2017.
All research outputs
#9,017,889
of 11,741,833 outputs
Outputs from BMC Neuroscience
#639
of 958 outputs
Outputs of similar age
#176,909
of 264,362 outputs
Outputs of similar age from BMC Neuroscience
#14
of 21 outputs
Altmetric has tracked 11,741,833 research outputs across all sources so far. This one is in the 20th percentile – i.e., 20% of other outputs scored the same or lower than it.
So far Altmetric has tracked 958 research outputs from this source. They receive a mean Attention Score of 3.6. This one is in the 28th percentile – i.e., 28% of its peers scored the same or lower than it.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 264,362 tracked outputs that were published within six weeks on either side of this one in any source. This one is in the 26th percentile – i.e., 26% of its contemporaries scored the same or lower than it.
We're also able to compare this research output to 21 others from the same source and published within six weeks on either side of this one. This one is in the 23rd percentile – i.e., 23% of its contemporaries scored the same or lower than it.