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Anticancer Res. 1995 May-Jun;15(3):805-10.

Relative efficacy of glucarate on the initiation and promotion phases of rat mammary carcinogenesis.

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  • 1Department of Surgery, College of Medicine, Ohio State University, Columbus 43210, USA.

Abstract

The independent effects of the potential cancer chemopreventive agent calcium glucarate (CGT) when fed (128 mmol/kg diet) during the initiation (I), promotion (P) or (I+P) phases of 7,12-dimethylbenzanthracene-induced rat mammary carcinogenesis, was compared to that of the known chemopreventive agent N-(4-hydroxyphenyl) retinamide (4-HPR) fed (2.0 mmol/kg diet) during these same phases. CGT and especially 4-HPR both significantly increased tumor latency when fed during the P-phase. When fed during I, P or I+P phases mammary tumor incidence was reduced compared to the controls 33%, 42% and 67% by 4-HPR and 18%, 42% and 50% by CGT. Similarly, tumor multiplicity was significantly reduced by either agent. For example, as compared to the corresponding control, when fed during the I, P or I+P phases 4-HPR reduced tumor multiplicity 63, 34 and 63%, while CGT reduced tumor multiplicity 28, 42 and 63% respectively. CGT, like 4-HPR, acts on both the I and P phases with the effect being maximal when fed during P and I+P phases.

PMID:
7645962
[PubMed - indexed for MEDLINE]
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