Abstract:
:Reactive oxygen species (ROS) are induced under diabetic conditions and are likely associated with the development of type 2 diabetes. It is also known that ROS production is facilitated in the presence of copper ion through the Fenton reaction. The aim of this study was to examine the involvement of copper ion in the pathogenesis of type 2 diabetes and to evaluate the potential usefulness of a copper chelating agent for the treatment of type 2 diabetes. First, both serum copper ion and ROS levels in diabetic C57BL/KsJ-db/db mice were significantly higher compared to those in nondiabetic mice. Second, we treated diabetic db/db mice with a copper chelating agent tetrathiomolybdate and examined the effects on the development of type 2 diabetes. As the results, both serum copper ion and ROS levels were significantly decreased by the treatment, which were equivalent to those in non-diabetic mice. Consequently, the treatment with a copper chelating agent reduced insulin resistance and ameliorated glucose intolerance in diabetic db/db mice. In addition, serum triglyceride levels were also decreased by the treatment. In conclusion, our present results suggest that copper ion is involved in the development of type 2 diabetes and thereby a potential therapeutic target for diabetes.
journal_name
Endocr Jjournal_title
Endocrine journalauthors
Tanaka A,Kaneto H,Miyatsuka T,Yamamoto K,Yoshiuchi K,Yamasaki Y,Shimomura I,Matsuoka TA,Matsuhisa Mdoi
10.1507/endocrj.k09e-051subject
Has Abstractpub_date
2009-01-01 00:00:00pages
699-706issue
5eissn
0918-8959issn
1348-4540pii
JST.JSTAGE/endocrj/K09E-051journal_volume
56pub_type
杂志文章abstract::To determine whether patients with medullary thyroid carcinoma (MTC) develop other endocrine neoplasms or their relatives develop MTC, we investigated the mutations in the RET proto-oncogene in patients with multiple endocrine neoplasia type 2B (MEN 2B, N = 1) and sporadic MTC (N = 6). DNA from MTC tissue and the peri...
journal_title:Endocrine journal
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journal_title:Endocrine journal
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pub_type: 杂志文章,多中心研究
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更新日期:2005-10-01 00:00:00
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pub_type: 杂志文章,实务指引
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