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A feasibility study of the use of saliva as an alternative to leukocytes as a source of DNA for the study of Pt-DNA adducts in cancer patients receiving platinum-based chemotherapy

This note presents a comparison of the use of saliva versus leukocytes for the determination of Pt-DNA adducts obtained from patients undergoing platinum-based chemotherapy. Samples of both blood and saliva were taken pre- and post-treatment and were analysed via sector-field inductively coupled pla...

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Published in:Analytical and bioanalytical chemistry 2014-12, Vol.406 (30), p.8033-8036
Main Authors: Taylor, Sarah E., Wood, Joanna P., Thomas, Anne L., Jones, George D. D., Reid, Helen J., Sharp, Barry L.
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description This note presents a comparison of the use of saliva versus leukocytes for the determination of Pt-DNA adducts obtained from patients undergoing platinum-based chemotherapy. Samples of both blood and saliva were taken pre- and post-treatment and were analysed via sector-field inductively coupled plasma mass spectrometry (SF-ICP-MS) to determine the level of Pt-DNA adducts formed. As expected, significant inter-patient variability was seen; however, a lack of correlation between the levels of adducts observed in saliva and blood samples was also observed (Pearson correlation coefficient r  = −0.2598). A high yield of DNA was obtained from saliva samples, but significant difficulties were experienced in obtaining patient adherence to the saliva sampling procedure. In both leukocyte and saliva samples, not only was Pt from previous chemotherapy cycles detected, but the rapid appearance of Pt in the DNA was noted in both sample types 1 h after treatment.
doi_str_mv 10.1007/s00216-014-8274-x
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source Springer Nature
subjects Adducts
Analysis
Analytical Chemistry
Antineoplastic Agents - pharmacology
Biochemistry
Blood
Cancer patients
Care and treatment
Characterization and Evaluation of Materials
Chemistry
Chemistry and Materials Science
Chemotherapy
Cisplatin - pharmacology
Correlation coefficient
Correlation coefficients
Deoxyribonucleic acid
DNA
DNA adducts
DNA Adducts - analysis
Feasibility studies
Food Science
Genetic research
Humans
Inductively coupled plasma mass spectrometry
Laboratory Medicine
Leukocytes
Leukocytes - chemistry
Leukocytes - drug effects
Mass Spectrometry
Mass spectroscopy
Monitoring/Environmental Analysis
Neoplasms - chemistry
Neoplasms - drug therapy
Organoplatinum Compounds - pharmacology
Patient compliance
Patients
Platinum
Platinum - analysis
Saliva
Saliva - chemistry
Saliva - drug effects
title A feasibility study of the use of saliva as an alternative to leukocytes as a source of DNA for the study of Pt-DNA adducts in cancer patients receiving platinum-based chemotherapy
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