Previous report showed that vitamin A increased rats specific anti-sheep red blood cells (SRBC) antibodies titres and maintained the levels for a relatively long period. In the following study, we observed the effects of vitamin A, administered orally, on the kinetics of 7 S and 19 S classes specific antibodies in rats. Twenty males Wistar rats were divided randomly into 4 groups of equal numbe…
The effectiveness of sun screen depends on the stability of drug used as an active compound, and its influence on the chemical components in skin cell. To study of the effectiveness of octylmethoxycinamate (OMC) as sun screen, the phostostability of OMC was examined by exposing the compound with direct sunlight. The influence of OMC on the stability of tryptophan was also studied. The layer was…