The DOI matches its Crossref record; 9 of the 9 references it cites were found in a registry or an index.
Intravenously administered vitamin C as cancer therapy: three cases
Open accessAbstract
Early clinical studies showed that high-dose vitamin C, given by intravenous and oral routes, may improve symptoms and prolong life in patients with terminal cancer. Double-blind placebo-controlled studies of oral vitamin C therapy showed no benefit. Recent evidence shows that oral administration of the maximum tolerated dose of vitamin C (18 g/d) produces peak plasma concentrations of only 220 micromol/L, whereas intravenous administration of the same dose produces plasma concentrations about 25-fold higher. Larger doses (50-100 g) given intravenously may result in plasma concentrations of about 14,000 micromol/L. At concentrations above 1000 micromol/L, vitamin C is toxic to some cancer cells but not to normal cells in vitro. We found 3 well-documented cases of advanced cancers, confirmed by histopathologic review, where patients had unexpectedly long survival times after receiving high-dose intravenous vitamin C therapy. We examined clinical details of each case in accordance with National Cancer Institute (NCI) Best Case Series guidelines. Tumour pathology was verified by pathologists at the NCI who were unaware of diagnosis or treatment. In light of recent clinical pharmacokinetic findings and in vitro evidence of anti-tumour mechanisms, these case reports indicate that the role of high-dose intravenous vitamin C therapy in cancer treatment should be reassessed.
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Cited by
Ascorbic acid: Chemistry, biology and the treatment of cancer
Du, J., Cullen, J. J., & Buettner, G. R. (2012) · Biochimica et Biophysica Acta (BBA) - Reviews on Cancer · doi:10.1016/j.bbcan.2012.06.003 · Cited by 1,070
Chen, Q., Espey, M. G., Sun, A. Y., Pooput, C., Kirk, K. L., Krishna, M. C., Khosh, D. B., Drisko, J., & Levine, M. (2008) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.0804226105 · Cited by 854
Chen, Q., Espey, M. G., Sun, A. Y., Lee, J.-H., Krishna, M. C., Shacter, E., Choyke, P. L., Pooput, C., Kirk, K. L., Buettner, G. R., et al. (2007) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.0702854104 · Cited by 676
New developments and novel therapeutic perspectives for vitamin C
Li, Y., & Schellhorn, H. E. (2007) · The Journal of Nutrition · doi:10.1093/jn/137.10.2171 · Cited by 508
Ma, Y., Chapman, J., Levine, M., Polireddy, K., Drisko, J., & Chen, Q. (2014) · Science Translational Medicine · doi:10.1126/scitranslmed.3007154 · Cited by 501
Metadata
- Authors
- Padayatty, S. J.
- Venue
- Canadian Medical Association Journal
- Publisher
- CMA Joule Inc.
- Published
- 2006-03-28
- Volume
- 174
- Issue
- 7
- Pages
- 937-942
- ISSN
- 0820-3946 (ISSN-L)
- 1488-2329
- OpenAlex
- W2151544145
- Cited by
- 252
- References
- 9
- FWCI
- 9.97
- Type
- journal article
- Language
- en
- Open access
- gold
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Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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