The widely used antioxidant butylated hydroxytoluene (BHT, 2,6-di-tert-butyl-4-methylphenol) produces acute pulmonary toxicity in mice, and also enhances the multiplicity of lung tumors in mice when chronically administered following a single dose of a carcinogen such as urethane. Evidence strongly
Oxidation of the food preservative 2,6-di-tert-butyl-4-methylphenol (BHT) by mouse lung cytochrome P450 produces electrophilic quinone methides thought to promote lung tumors in mice by covalent binding to critical proteins. Specific pulmonary targets of
Two quinone methide (QM) metabolites of the phenolic antioxidant butylated hydroxytoluene (BHT), 2,6-di-tert-butyl-4-methylenecyclohexa-2,5-dienone (BHT-QM) and the tert-butyl-hydroxylated derivative (BHTOH-QM), are believed to be responsible for promoting lung tumor formation in mice treated with
Curcumin is a well-known example of plant origin exhibiting promising diverse biological properties such as, anti-inflammatory and antitumor as well as poor pharmacokinetic/pharmacodynamic properties. This is why effective agents based on its chemical scaffold were
A new linderone A, namely 2-cinnamoyl-3-hydroxy-4, 5-dimethoxycyclopenta-2, 4-dienone (5), together with three known flavonoids (1-3) and one linderone (4), were isolated from the bark of Lindera oxyphylla. Extensive spectroscopic analysis including 1D and 2D-NMR spectra determined their sturctures.
Acute pulmonary toxicity and tumor promotion by the food additive 2,6-di-tert-butyl-4-methylphenol (BHT) in mice are well documented. These effects have been attributed to either of two quinone methides, 2,6-di-tert-butyl-4-methylenecyclohexa-2,5-dienone (BHT-QM) formed through direct oxidation of
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