Dysregulation of hypoxia-inducible factor 1 alpha in the sympathetic nervous system accelerates diabetic cardiomyopathy

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F86652036%3A_____%2F23%3A00571541" target="_blank" >RIV/86652036:_____/23:00571541 - isvavai.cz</a>

Alternative codes found

RIV/67985823:_____/23:00571541

Result on the web

<a href="https://cardiab.biomedcentral.com/articles/10.1186/s12933-023-01824-5" target="_blank" >https://cardiab.biomedcentral.com/articles/10.1186/s12933-023-01824-5</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1186/s12933-023-01824-5" target="_blank" >10.1186/s12933-023-01824-5</a>

Result language

angličtina

Original language name

Dysregulation of hypoxia-inducible factor 1 alpha in the sympathetic nervous system accelerates diabetic cardiomyopathy

Original language description

BackgroundAn altered sympathetic nervous system is implicated in many cardiac pathologies, ranging from sudden infant death syndrome to common diseases of adulthood such as hypertension, myocardial ischemia, cardiac arrhythmias, myocardial infarction, and heart failure. Although the mechanisms responsible for disruption of this well-organized system are the subject of intensive investigations, the exact processes controlling the cardiac sympathetic nervous system are still not fully understood. A conditional knockout of the Hif1a gene was reported to affect the development of sympathetic ganglia and sympathetic innervation of the heart. This study characterized how the combination of HIF-1 alpha deficiency and streptozotocin (STZ)-induced diabetes affects the cardiac sympathetic nervous system and heart function of adult animals.MethodsMolecular characteristics of Hif1a deficient sympathetic neurons were identified by RNA sequencing. Diabetes was induced in Hif1a knockout and control mice by low doses of STZ treatment. Heart function was assessed by echocardiography. Mechanisms involved in adverse structural remodeling of the myocardium, i.e. advanced glycation end products, fibrosis, cell death, and inflammation, was assessed by immunohistological analyses.ResultsWe demonstrated that the deletion of Hif1a alters the transcriptome of sympathetic neurons, and that diabetic mice with the Hif1a-deficient sympathetic system have significant systolic dysfunction, worsened cardiac sympathetic innervation, and structural remodeling of the myocardium.ConclusionsWe provide evidence that the combination of diabetes and the Hif1a deficient sympathetic nervous system results in compromised cardiac performance and accelerated adverse myocardial remodeling, associated with the progression of diabetic cardiomyopathy.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

30202 - Endocrinology and metabolism (including diabetes, hormones)

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2023

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Cardiovascular Diabetology

ISSN

1475-2840

e-ISSN

1475-2840

Volume of the periodical

22

Issue of the periodical within the volume

1

Country of publishing house

GB - UNITED KINGDOM

Number of pages

21

Pages from-to

88

UT code for WoS article

000971837600002

EID of the result in the Scopus database

2-s2.0-85152863980