Evidence map›Paper›PMID 34415518›Full record

ArticleGeroScience2021

Effect of genetic depletion of MMP-9 on neurological manifestations of hypertension-induced intracerebral hemorrhages in aged mice.

Stefano Tarantini, Andriy Yabluchanskiy, Merry L Lindsey, Anna Csiszar, Zoltan Ungvari

Open access · greenAbstract read
In one paragraph

Article in GeroScience, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
1.5field-weighted citation impact, top 15% 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

14 citing papers in PubMed, 17 citations in OpenAlex.

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  11. Role of endocrine PACAP in age-related diseases.Frontiers in endocrinology · 2023
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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

5 authors at 3 institutions in 2 countries.

Stefano Tarantini *Vascular Cognitive Impairment and Neurodegeneration Program, Center for Geroscience and Healthy Brain Aging, Department of Biochemistry and Molecular Biology, University of Oklahoma Health Sciences Center, 975 NE 10th Street, BRC 1311, Oklahoma, OK, 73104, USA.
Andriy Yabluchanskiy *Vascular Cognitive Impairment and Neurodegeneration Program, Center for Geroscience and Healthy Brain Aging, Department of Biochemistry and Molecular Biology, University of Oklahoma Health Sciences Center, 975 NE 10th Street, BRC 1311, Oklahoma, OK, 73104, USA.
Merry L LindseyCenter for Heart and Vascular Research, Department of Cellular and Integrative Physiology, University of Nebraska Medical Center, Omaha, NE, 68102, USA.
Anna Csiszar *Vascular Cognitive Impairment and Neurodegeneration Program, Center for Geroscience and Healthy Brain Aging, Department of Biochemistry and Molecular Biology, University of Oklahoma Health Sciences Center, 975 NE 10th Street, BRC 1311, Oklahoma, OK, 73104, USA. anna-csiszar@ouhsc.edu.
Zoltan Ungvari *Vascular Cognitive Impairment and Neurodegeneration Program, Center for Geroscience and Healthy Brain Aging, Department of Biochemistry and Molecular Biology, University of Oklahoma Health Sciences Center, 975 NE 10th Street, BRC 1311, Oklahoma, OK, 73104, USA.
Semmelweis University · HUUniversity of Oklahoma Health Sciences Center · USUniversity of Nebraska Medical Center · US

Funding

Tracking and Evaluation CoreU54GM104938 · NIGMS · UNIVERSITY OF OKLAHOMA HLTH SCIENCES CTR · PI TIMOTHY M VANWAGONER · 2013 to 2026
$68.2M
Proteomics CoreP20GM103447 · NIGMS · UNIVERSITY OF OKLAHOMA HLTH SCIENCES CTR · PI David W Dyer · 2012 to 2026
$60.2M
Visualizing insulin actions on neuronal metabolism and function using fluorescent biosensorsP20GM125528 · NIGMS · UNIVERSITY OF OKLAHOMA HLTH SCIENCES CTR · PI Veronica Galvan, William Edmund Sonntag · 2019 to 2026
$17.8M
Targeted DNA Methylation and Mitochondrial Heteroplasmy CoreP30AG050911 · NIA · UNIVERSITY OF OKLAHOMA HLTH SCIENCES CTR · PI William Edmund Sonntag · 2015 to 2026
$13.9M
GEROSCIENCE TRAINING PROGRAM IN OKLAHOMAT32AG052363 · NIA · UNIVERSITY OF OKLAHOMA HLTH SCIENCES CTR · PI Benjamin Francis Miller, William Edmund Sonntag · 2017 to 2026
$3.6M
NOVEL APPROACHES FOR REGULATION OF IGF-1 LEVELS THROUGHOUT THE LIFESPANR01AG038747 · NIA · UNIVERSITY OF OKLAHOMA HLTH SCIENCES CTR · PI SONNTAG, WILLIAM EDMUND · 2011 to 2015
$2.4M
Cerebral microhemorrhages and gait dysfunction in agingR01AG055395 · NIA · UNIVERSITY OF OKLAHOMA HLTH SCIENCES CTR · PI CSISZAR, ANNA · 2017 to 2025
$2.3M
Age-related vascular cognitive impairment: role of endothelial senescenceR01AG068295 · NIA · UNIVERSITY OF OKLAHOMA HLTH SCIENCES CTR · PI CSISZAR, ANNA, UNGVARI, ZOLTAN ISTVAN · 2020 to 2024
$1.8M
Radiation-induced astrocyte dysfunction and cognitive declineR01NS100782 · NINDS · UNIVERSITY OF OKLAHOMA HLTH SCIENCES CTR · PI UNGVARI, ZOLTAN ISTVAN · 2018 to 2022
$1.7M
Chemotherapy-induced vascular cognitive impairment: role of endothelial senescenceR01CA255840 · NCI · UNIVERSITY OF OKLAHOMA HLTH SCIENCES CTR · PI CSISZAR, ANNA · 2021 to 2025
$1.6M
Microvascular mechanisms of neuroinflammation: role of Nrf2R01AG047879 · NIA · UNIVERSITY OF OKLAHOMA HLTH SCIENCES CTR · PI CSISZAR, ANNA · 2014 to 2018
$1.5M
Cerebromicrovascular rejuvenation by heterochronic blood exchangeRF1AG072295 · NIA · UNIVERSITY OF OKLAHOMA HLTH SCIENCES CTR · PI CSISZAR, ANNA, UNGVARI, ZOLTAN ISTVAN · 2021 to 2021
$1.4M
NCI NIH HHS R01 CA255840NIA NIH HHS K01 AG073614NIA NIH HHS P30 AG050911NIA NIH HHS R01 AG038747NIA NIH HHS R01 AG047879NIA NIH HHS R01 AG055395NIA NIH HHS R01 AG068295NIA NIH HHS RF1 AG072295NIA NIH HHS T32 AG052363NIGMS NIH HHS P20 GM103447NIGMS NIH HHS P20 GM125528NIGMS NIH HHS U54 GM104938NINDS NIH HHS R01 NS100782
6 · The paper itself

Abstract

Clinical and experimental studies show that hypertension induces intracerebral hemorrhages (ICH), including cerebral microhemorrhages in the aged brain, which contribute to the pathogenesis of vascular cognitive impairment (VCI). Previous studies showed that aging increased oxidative stress-mediated activation of matrix metalloproteinases (MMPs) that importantly contributes to the pathogenesis of ICHs. In particular, oxidative stress has been implicated in activation of MMP-9, which is known to be involved in the degradation of the extracellular matrix and cleavage of collagen IV, a key constituent of the basal membrane of cerebral vessels. To determine the role of MMP-9 activation in the genesis of ICHs, we induced hypertension in 20-month-old MMP-9 null and age-matched control mice by angiotensin II and L-NAME treatment. Contrary to our hypothesis, MMP-9 deficiency did not delay the onset or incidence of neurological consequences of hypertension-induced ICHs. Our results indicate that MMP-9 activation does not play a role in the age-related exacerbation of hypertension-induced ICH.

Indexed as

AgingCerebral HemorrhageHypertensionMatrix Metalloproteinase 9Angiotensin IIAnimalsMiceAngiotensin IIMatrix Metalloproteinase 9Mmp9 protein, mouseAgingArterioleArteryCerebral microhemorrhageMicrobleedOxidative stressStroke

Identifiers

PMID34415518
PMCPMC8599521
OpenAlexW3193392223

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.