Posted in February 25, 2010 ¬ 11:49 pmh.adminComments Off
Individual Charming Touches Personalized Birthstone Italian Link Charm Bracelet : Add Personalized Italian Charms to a Bracelet You Love or Create Your Own Bracelet! Over 50 Different Charms – Personalized Italian charm bracelets have become one of jewelry’s newest trends because they’re a stylish way to express just how unique you are. Now The Bradford Exchange is pleased to offer a delightful selection of exclusive and affordable Italian link charms. It’s so easy to add them to an Italian charm bracelet you already own or create a brand-new design with our starter bracelet. Each individual and interchangeable Italian charm bracelet link is handcrafted in stainless steel and accented with gleaming 18K-gold plating. Many are embellished with genuine Swarovski(R) crystals. Choose from over 50 different exclusive Italian charm bracelet link designs, including birthstone Italian charms. Spell out a name or how you feel; pay tribute to a special day or event. Let everyone know what’s important to you! Want to start a new personalized bracelet? Our starter bracelet is waiting for you to add your personal touch. FREE shipping and service when you buy 3 items or more. Don’t wait to create your very own fashion statement with these exclusive personalized Italian charms. Order now! *** Express Shipping Available ***
Individual Charming Touches Personalized Birthstone Italian Link Charm Bracelet
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Posted in February 24, 2010 ¬ 12:37 pmh.adminComments Off
DNA-protein cross-links and sister chromatid exchanges induced by dimethylarsinic acid in human fibroblasts cells [An article from: Mut.Res.-Genetic Toxicology and Environmental Mutagenesis] : This digital document is a journal article from Mut.Res.-Genetic Toxicology and Environmental Mutagenesis, published by Elsevier in 2005. The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.
Description:
Biotransformation of inorganic arsenic to form both methylarsinic acid (MA) and dimethylarsinic acid (DMA) has traditionally been considered as a mechanism to facilitate the detoxification and excretion of arsenic. However, the methylation of inorganic arsenic as a detoxification mechanism has been questioned due to recent studies revealing an important role of organic arsenic in the induction of genetic damage. In a previous report a reduction of DNA migration after treatment of cells with DMA was described. In order to further evaluate the possible induction of protein-DNA adducts, an experiment was performed taking into account other parameters and modifications of the standard alkaline comet assay. In addition, the results obtained with the comet assay were compared with those obtained by analyzing the induction of sister chromatid exchanges (SCEs). SCE frequencies were significantly increased in treated cells in relation to controls (p<0.001). Furthermore, in the standard alkaline comet assay, as well as in the control assay for proteinase K treatment, a significant dose-dependent reduction in tail moment was observed. Nevertheless, the post-treatment with proteinase K induced the release of proteins joined to the DNA and consequently, a dose-dependent increment in DNA migration was observed (p<0.001). These results suggest that DNA-protein cross-links may be an important genotoxic effect induced by dimethylarsinic acid in human MRC-5 cells.
DNA-protein cross-links and sister chromatid exchanges induced by dimethylarsinic acid in human fibroblasts cells [An article from: Mut.Res.-Genetic Toxicology and Environmental Mutagenesis]
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Posted in February 22, 2010 ¬ 6:30 pmh.adminComments Off
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