The effect of selenium, as selenomethionine, on genome stability and cytotoxicity in human lymphocytes measured using the cytokinesis-block micronucleus cytome assay
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چکیده
منابع مشابه
The effect of selenium, as selenomethionine, on genome stability and cytotoxicity in human lymphocytes measured using the cytokinesis-block micronucleus cytome assay.
A supranutritional intake of selenium (Se) may be required for cancer prevention, but an excessively high dose could be toxic. Therefore, the effect on genome stability of seleno-L-methionine (Se-met), the most important dietary form of Se, was measured to determine its bioefficacy and safety limit. Peripheral blood lymphocytes were isolated from six volunteers and cultured with medium suppleme...
متن کاملTesting chemical agents with the cytokinesis-block micronucleus cytome assay.
In order to evaluate the applicability of the cytokinesis-block micronucleus cytome assay in routine mutagenicity testing we investigated with this method different chemicals having different mechanisms of action: non-mutagens, direct-acting basealtering mutagens, direct-acting cross-linking mutagens, clastogens including a radiomimeti...
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Excessive alcohol consumption is associated with an increased risk of a variety of cancers. The specific association between alcohol consumption and increased risk of breast cancer has been a consistent finding in numerous studies to date; however, the biological mechanism remains unknown. One possibility is that alcohol induces chromosome instability and aneuploidy events commonly seen in canc...
متن کاملMicronucleus assay of human lymphocytes: a comparison of cytokinesis-block and human capillary blood lymphocytes methods.
Micronucleus (MN) expression in Peripheral blood lymphocytes is well established as a method to monitor chromosome damage in human populations. The use of MN as a measure of chromosome damage in peripheral blood lymphocytes was first proposed by Countryman and Heddle and subsequently improved with the development of the cytokinesis-block micronucleus (CBMN) method, which has been extensively us...
متن کاملEffects of spindle poisons in peripheral human lymphocytes by the in vitro cytokinesis-block micronucleus assay.
The search for micronuclei (MN) in binucleated cells is not always the best choice to recognize microtubule-perturbing agents, as they give rise to (micronucleated) mononucleated cells, mainly via mitotic slippage. We therefore treated peripheral lymphocytes with vincristine (VCR), nocodazole (NOC) and colcemid (COL): (i) to quantify the formation of MN in mononucleated cells and the occurrence...
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ژورنال
عنوان ژورنال: Mutagenesis
سال: 2009
ISSN: 0267-8357,1464-3804
DOI: 10.1093/mutage/gen074