Evidence map›Paper›PMID 21786025›Full record

ArticleJournal of thrombosis and thrombolysis2011

Effect of dietary β carotene on cerebral aneurysm and subarachnoid haemorrhage in the brain apo E-/- mice.

K Gopal, P Nagarajan, T Avinash Raj, P Jahan, H S Ganapathy, M J Mahesh Kumar

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Article in Journal of thrombosis and thrombolysis, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
0.9field-weighted citation impact, top 27% 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, 15 citations in OpenAlex.

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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 4 institutions in 2 countries.

K GopalSmall Animal Facility, Centre for Cellular and Molecular Biology, Uppal Road, Hyderabad, India.
P Nagarajan
T Avinash Raj
P Jahan
H S Ganapathy
M J Mahesh Kumar
Centre for Cellular and Molecular Biology · INKumamoto University · JPNational Institute of Immunology · INOsmania University · IN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Atherosclerosis will lead to stenosis/occlusion in the lumen of various arteries of living body. This can lead various conditions including myocardial infarction, cerebral infarction/aneurysm and peripheral artery disease. Ang II is believed to be an important regulatory peptide involved in maintaining cardiovascular homeostasis and pathogenesis of various cardiovascular diseases. Matrix metalloproteinase's (MMPs), adhesion molecules and plasminogen systems are involved in the inflammatory reaction of various blood vessels as well as pathogenesis of cerebro vasuclar disease in apo E(-/-) mice during angiotensin II injection. The present study analyses the role of ang II in development of cerebral aneurysm and also evaluated the mRNA levels of MMPs, adhesion molecules, plasminogen systems and peroxisome proliferators-associated receptors in the brain of apo E(-/-) mouse during the progression of cerebral aneurysm and ischemic conditions. Also, this study evaluates the role of dietary β carotene on cerebrovascular disease. Serum total cholesterol (TC), Low density lipoprotein (LDL) and triglyceride (TG) levels were significantly increased in angiotensin II treated animals and further β carotene supplementation reduces TC but does not affect the triglyceride and LDL levels. Circulating levels of macrophages were significantly increased in angiotensin treated animals and further beta carotene supplementation significantly reduced the circulating macrophages. Cerebro meningeous aneurysm, subarachnoid haemorrhage, multiple foci of infarction, necrosis and infiltration of inflammatory cells were observed in the cerebral hemispheres of ang II treated animals, however, infarction size were reduced and no aneurysm, inflammatory foci was observed in β carotene treated animals. Real time analysis showed down regulation of mRNA levels of MMP 2, uPA, PAI, PPAR-A, MCSF1 and up regulation of tPA and MCP-1 in the brain during the progression of cerebral aneurysm and β carotene supplementation to bring to normal expression levels of all the candidate genes for cerebrovascular diseases. Based on above results, Ang II may induced cerebral aneurysm, ischemia/infarction on brain through RAS system by down regulating the mRNA levels of MMP 2, uPA, PAI, PPAR-A, MCSF1 and up regulating tPA and MCP-1 and β carotene attenuates the disease condition and bring down to normal expression levels of above genes.

Indexed as

Apolipoproteins EDietary SupplementsAngiotensin IIAnimalsbeta CaroteneBrainGene Expression RegulationIntracranial AneurysmLipidsMacrophagesMiceMice, KnockoutNerve Tissue ProteinsSubarachnoid HemorrhageVasoconstrictor AgentsVitaminsAngiotensin IIApolipoproteins Ebeta CaroteneLipidsNerve Tissue ProteinsVasoconstrictor AgentsVitamins

Identifiers

PMID21786025
OpenAlexW1999863641

What OpenQuestion holds

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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.