| http://purl.uniprot.org/citations/16906520 | http://www.w3.org/1999/02/22-rdf-syntax-ns#type | http://purl.uniprot.org/core/Journal_Citation |
| http://purl.uniprot.org/citations/16906520 | http://www.w3.org/2000/01/rdf-schema#comment | "Manganese is an essential trace element found in many enzymes. As it is the case of many essential trace elements, excessive level of manganese is toxic. It has been proven that excessive manganese could cause heart problems. In order to understand the mechanism of manganese toxicity in the heart, the effects of manganese on isolated rat ventricular myocytes were studied. The L-type calcium channel current was measured by whole-cell patch clamp recording mode. In the electrophysiology experiments, both 50 microM Mn2+ and 100 microM Mn2+ could effectively decrease the channel current amplitude density by 35.7% and 68.2%, respectively. Moreover, Mn2+ shifted the steady-state activation curve toward more positive potential and the steady-state inactivation curve toward more negative potential. Investigation by RT-PCR showed that the mRNA expression of alpha1C/Cav1.2 treated with manganese was decreased depending on its concentration, while the mRNA expression of alpha1D/Cav1.3 was almost unchanged. Fluo-3/AM was utilized for real-time free calcium scanning with laser scanning confocal microscopy (LSCM), and the results showed that Mn2+ could elicit a slow and continuous increase of [Ca2+]i in a concentration-dependent manner. These results have suggested that manganese could interfere with the function of the L-type calcium channel, downregulate the mRNA expression of alpha1C/Cav1.2, and thus causing long-lasting molecular changes of L-type calcium channel which have probably been triggered by overloading of calcium in myocytes."xsd:string |
| http://purl.uniprot.org/citations/16906520 | http://purl.org/dc/terms/identifier | "doi:10.1002/jbt.20133"xsd:string |
| http://purl.uniprot.org/citations/16906520 | http://purl.uniprot.org/core/author | "Gu L."xsd:string |
| http://purl.uniprot.org/citations/16906520 | http://purl.uniprot.org/core/author | "Li J."xsd:string |
| http://purl.uniprot.org/citations/16906520 | http://purl.uniprot.org/core/author | "Yang H."xsd:string |
| http://purl.uniprot.org/citations/16906520 | http://purl.uniprot.org/core/author | "Wang T."xsd:string |
| http://purl.uniprot.org/citations/16906520 | http://purl.uniprot.org/core/author | "Zheng X."xsd:string |
| http://purl.uniprot.org/citations/16906520 | http://purl.uniprot.org/core/date | "2006"xsd:gYear |
| http://purl.uniprot.org/citations/16906520 | http://purl.uniprot.org/core/name | "J Biochem Mol Toxicol"xsd:string |
| http://purl.uniprot.org/citations/16906520 | http://purl.uniprot.org/core/pages | "159-166"xsd:string |
| http://purl.uniprot.org/citations/16906520 | http://purl.uniprot.org/core/title | "Decreasing expression of alpha1C calcium L-type channel subunit mRNA in rat ventricular myocytes upon manganese exposure."xsd:string |
| http://purl.uniprot.org/citations/16906520 | http://purl.uniprot.org/core/volume | "20"xsd:string |
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