In 1944 Kohn and Liversedge (1) showed that tissue suspensions or slices incubated aerobically produce a compound which will condense with either p-aminobenzoic acid (PAB) to give a yellow color or with thiobarbituric acid to give an orange-red color. Brain is the most active tissue, liver next, and other tissues show some activity. Subsequently, Bernheim et al. (2) found that washed brain susp...

Aqueous extract of Calendula officinalis Linn. leaves and flowers has antioxidant action. The activity was determined using the ferric thiocyanate thiobarbituric acid techniques. aqueous extracts petals greater than that leaves. According to findings this study, C. are a possible source natural antioxidants.

The wide diffusion of 2-thiobarbituric acid (TBA) in the scientific literature is due to the TBA assay, or TBA test, which has been employed in the determination of autoxidative alterations of fats and oils. Two processes occur in autoxidation, generally: the free radical and the photo-oxidation mechanisms. The better studied is the free radical mechanism. The hydroperoxiepidioxides and bicyclo...

INTRODUCTION Salivary TBARS are a potential marker of oxidative stress in the oral cavity. Previous studies have found increased levels of salivary TBARS in various diseases. The aim of this study was to assess the variability of salivary TBARS in both genders. SUBJECTS & METHODS Saliva samples from thirty-eight healthy volunteers (18F & 20M) were collected every day during 30 day period. TBA...

The solid–solid reactions of electron-donor compounds, such as: barbituric acid (1a), thiobarbituric acid (1b), 1,3-dimethyl barbituric acid (1c), phenol (1d) and resorcinol (1e) with diazotized o-nitroaniline (3), m-nitroaniline (4) and p-nitroaniline (5) catalyzed by p-toluenesulfonic acid (2) afford azo dyes by grinding in good yields. This new method totally avoids the use of inorganic acid...

Sodium valproate and tomato extract have been studied in different experimental models of epilepsy individually. The aim of the present study was to evaluate the effect of lycopene on the antiepileptic effects of sodium valproate against pentylenetetrazol-induced kindling in mice. Swiss albino mice of either sex were randomly divided into 5 groups, with each group containing 8 mice. These group...