کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2497265 1116194 2010 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Epigallocatechin gallate inhibits beta amyloid oligomerization in Caenorhabditis elegans and affects the daf-2/insulin-like signaling pathway
موضوعات مرتبط
علوم زیستی و بیوفناوری بیوشیمی، ژنتیک و زیست شناسی مولکولی بیوشیمی بالینی
پیش نمایش صفحه اول مقاله
Epigallocatechin gallate inhibits beta amyloid oligomerization in Caenorhabditis elegans and affects the daf-2/insulin-like signaling pathway
چکیده انگلیسی

Epidemiological studies have repeatedly demonstrated that green tea protects against oxidative stress involved in many diseases. Health benefits of green tea are attributed to its principal active constituent, epigallocatechin gallate (EGCG). EGCG was shown to increase the stress resistance and lifespan of Caenorhabditis elegans. The mechanism of this action has been investigated in this study. The expression of hsp-16.1 and hsp-16.2 in EGCG-treated worms (N2), as quantified by real-time PCR, was significantly lower under oxidative stress induced by juglone than in controls without EGCG. In the strain TJ356 (DAF-16::GFP) EGCG treatment induced translocation of DAF-16 from the cytoplasm into the nucleus, suggesting that EGCG may affect the daf-2/insulin-like signaling pathway. EGCG decreased the formation of lipofuscin, an aging related pigment. Also, EGCG reduced beta amyloid (Aβ) deposits and inhibited Aβ oligomerization in transgenic C. elegans (CL2006). Thus, the use of green tea and EGCG is apparently rational alternatives for protecting against ROS-mediated and age-related diseases.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Phytomedicine - Volume 17, Issue 11, September 2010, Pages 902–909
نویسندگان
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