ArticleMolecular and cellular biochemistry2009
Upregulation of myocardial syntaxin1A is associated with an early stage of polymicrobial sepsis.
Article in Molecular and cellular biochemistry, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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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.
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Who cites it
2 citing papers in PubMed, 4 citations in OpenAlex.
- Munc18-1 Contributes to Hippocampal Injury in Septic Rats Through Regulation of Syntanxin1A and Synaptophysin and Glutamate Levels.Neurochemical research · 2023Article
- Syntaxin 1A mediates isoflurane but not hypoxia preconditioning-induced alleviation of hypoxia-reoxygenation injury in rat cardiomyocytes.American journal of translational research · 2015Article
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Authors and funding
3 authors at 1 institution in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
This study was designed to test whether increased sympathetic stimulation during polymicrobial sepsis modulates the profile of the syntaxin1A and norepinephrine transporter (NET) in the heart. Sepsis of mild and severe intensity was induced in male Sprague-Dawley rats (275-350 g) using the cecal inoculum (CI) and cecal ligation and puncture (CLP) methods, respectively. The heart samples were isolated from sham, 1, 3, and 7 day post-sepsis in the CI model and at 2 and 20 h post-sepsis in the CLP model. In the CI model, the plasma concentration of norepinephrine (NE) significantly increased at 1, 3, and 7 days post-CI compared to the sham group. The myocardial syntaxin1A mRNA and protein expression also significantly increased at 1 day post-CI compared to the sham group. However, the sepsis-induced increase in syntaxin1A returned to the baseline values at 3 and 7 days post-CI. The expressions of myocardial NET mRNA and protein were not altered at 1 day post-CI but significantly decreased at 3 days post-CI compared to the sham and 1 day post-CI groups. The immunohistochemical analyses revealed an increased localization of NET and syntaxin1A in the heart tissue sections of the 1 day post-CI group. In the CLP model of severe sepsis, the myocardial syntaxin1A mRNA protein expressions significantly increased at 2 h post-CLP, but remained unchanged at 20 h post-CLP compared to the sham group. In contrast, the myocardial expressions of NET mRNA and protein significantly decreased at both 2 and 20 h post-CLP compared to the sham group. It appears that during severe sepsis (CLP model), both the upregulation of syntaxin1A and the downregulation of NET contribute to increased concentrations of NE during the early and late stages of sepsis.
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Registered trials
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