Article ; Online: NRF-2/HO-1 Pathway-Mediated SHOX2 Activation Is a Key Switch for Heart Rate Acceleration by Yixin-Fumai Granules.
Oxidative medicine and cellular longevity
2022 Volume 2022, Page(s) 8488269
Abstract: ... and safe medical therapy has been reported thus far. Yixin-Fumai granules (YXFMs), a Chinese medicine ...
Abstract | Population aging has led to increased sick sinus syndrome (SSS) incidence; however, no effective and safe medical therapy has been reported thus far. Yixin-Fumai granules (YXFMs), a Chinese medicine granule designed for bradyarrhythmia treatment, can effectively increase SSS patients' heart rate. Senescence-induced sinoatrial node (SAN) degeneration is an important part of SSS pathogenesis, and older people often show high levels of oxidative stress; reactive oxygen species (ROS) accumulation in the SAN causes abnormal SAN pacing or conduction functions. The current study observed the protective effects of YXFMs on senescent SAN and explored the relationship between the NRF-2/HO-1 pathway, SHOX2, and T-type calcium channels. We selected naturally senescent C57BL/6 mice with bradycardia to simulate SSS; electrocardiography, Masson's trichrome staining, and DHE staining were used to assess SAN function and tissue damage. Immunofluorescence staining and Western blotting were used to assay related proteins. |
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MeSH term(s) | Acceleration ; Aged ; Animals ; Calcium Channels, T-Type ; Galactose ; Heart Rate ; Heme Oxygenase-1/metabolism ; Homeodomain Proteins/metabolism ; Humans ; Medicine, Chinese Traditional ; Mibefradil ; Mice ; Mice, Inbred C57BL ; Molecular Docking Simulation ; NF-E2-Related Factor 2/metabolism ; Reactive Oxygen Species/metabolism ; Transcription Factors/metabolism |
Chemical Substances | Cacna1g protein, mouse ; Calcium Channels, T-Type ; Homeodomain Proteins ; NF-E2-Related Factor 2 ; Reactive Oxygen Species ; SHOX2 protein, human ; Shox2 protein, mouse ; Transcription Factors ; Mibefradil (27B90X776A) ; Heme Oxygenase-1 (EC 1.14.14.18) ; Galactose (X2RN3Q8DNE) |
Language | English |
Publishing date | 2022-09-26 |
Publishing country | United States |
Document type | Journal Article |
ZDB-ID | 2455981-7 |
ISSN | 1942-0994 ; 1942-0994 |
ISSN (online) | 1942-0994 |
ISSN | 1942-0994 |
DOI | 10.1155/2022/8488269 |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
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