Levels of 5-Hydroxymethyl-2′-deoxyuridine in DNA from Blood of Women Scheduled for Breast Biopsy
Systemic oxidative stress is thought to contribute to risk of various cancers, including breast cancer. DNA repair ability also has been associated with breast cancer risk. In this work, we examined levels of oxidative DNA damage as an indication of breast cancer risk in women because oxidative DNA...
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Published in | Cancer epidemiology, biomarkers & prevention Vol. 10; no. 2; pp. 147 - 149 |
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Main Authors | , , , , , |
Format | Journal Article Conference Proceeding |
Language | English |
Published |
Philadelphia, PA
American Association for Cancer Research
01.02.2001
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Subjects | |
Online Access | Get full text |
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Summary: | Systemic oxidative stress is thought to contribute to risk of various
cancers, including breast cancer. DNA repair ability also has been
associated with breast cancer risk. In this work, we examined levels of
oxidative DNA damage as an indication of breast cancer risk in women
because oxidative DNA damage levels should reflect the net balance of
oxidative stress and DNA repair ability. Levels of
5-hydroxymethyl-2′-deoxyuridine, one form of oxidative DNA
damage, were measured in DNA from blood of women scheduled for breast
biopsy. The blood samples analyzed included women whose biopsy results
indicated invasive breast cancer, high-risk lesions (atypical
hyperplasia or carcinoma in situ ), or benign lesions.
Mean levels of 5-hydroxymethyl-2′-deoxyuridine were significantly
higher in blood of women who had high risk or invasive breast lesions
versus women with benign lesions. If atypical
hyperplasia or carcinoma in situ are precursor lesions
for breast cancer, then these results suggest that oxidative DNA damage
may be involved in the cancer process before invasive cancer develops. |
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Bibliography: | ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 |
ISSN: | 1055-9965 1538-7755 |