[Studies on synthetic new drug SC1001-sodium against epilepsy induced by coriaria lactone in rabbits].

In the present experiment, SC1001Na synthesized by West China University of Medical Sciences was used for studying to resist epilepsy induced by coriaria lactone. Forty-two normal male rabbits weighing 1.7-2.5 kg were randomly divided into four groups. The animals of the control group received coriaria lactone (3 mg/kg, i.m.). The animals in each of the experimental groups were injected separately with SC1001Na (100, 200 and 300 mg/kg, i.p.), but the control animals were not injected with SC1001Na. Thirty minutes later, the animals of the experimental groups were injected with the same dose of coriaria lactone as the control animals. The behavior of all animals before and after injection were observed continuously in 4-5 hours. The ECoG of eight animals of them were observed at the same time with telemetric method. The results of experiments indicated that SC1001Na is effective on epilepsy induced by coriaria lactone, in decreasing seizure rate, lengthening latent period, reducing seizure degree, as well as in decreasing mortality.

[An experimental observation on the calmative and antiepileptic effects of a new synthetic drug SC1001-aminum intupaias].

In this experiment, the calmative and anti-epileptic effects of SC1001A were observed in fifty-five tupaias (Tupaia belangeri Yunalis), both male and female, were divided into four groups. The animals of the first group were perfused with SC1001A (400mg/kg) into their stomach. The animals of the second group were injected with coriaria lactone (5mg/kg, i.m.) for inducing seizures. The remaining two groups received SC1001A 100 and 400 mg/kg respectively by the same way as that of the first group, and 1 min later, they were injected immediately with coriaria lactone (5 mg/kg, i.m.). After the drug being perfused, the behaviors of all the experimental animals were observed continuously for 2-3 h. The results of the experiment indicated that SC1001A was possessed of a calmative effect which appeared shortly after drug (mean 12.88 min) and did not sustain a long time (mean 98 min). In addition, SC1001A was obviously effective on epilepsy induced by coriaria lactone in tupaias, in reducing the seizure rate, the times of petit mal and grand mal, as well as the duration of grand mal.

[Effects of synthetic new drug SC1001-sodium on respiratory frequency, heart rate, rectal temperature and electrocorticogram in rabbits].

Seventeen normal male rabbits weighing 1.7-2.8 kg were randomly divided into 2 groups. The experimental group (ten rabbits) was injected with SC1001Na (200 mg/kg, i.p.). The control group (seven rabbits) was injected with normal saline of the same volume. Continuous observations for 6 hours were made after injection, with reference to respiratory frequency (RF), heart rate (HR), rectal temperature (RT) and ECoG of these rabbits. The results of experiments indicate that SC1001Na has a slight inhibitory effect on RF and RT, an obvious inhibitory effect on the activity of central nervous system, and an accelerating effect on HR in rabbits.

[The distribution of 3H-alpha-sec-butyl-p hydroxybenzyl alcohol in mice].

alpha-sec-butyl-p-hydroxybenzyl alcohol is a derivative of gastrodigenin. It dissolves in lipid and passes through the blood-brain barrier more easily than gastrodin does. The distribution experiment has demonstrated that 3H-alpha-sec-butyl-p-hydroxybenzyl alcohol in the brain of mice is higher than in other organs, such as the liver, kidney and intestines. Radioactivity of brain tissue rises to the highest peak in about 1/2-2 min after intravenous injection. Each gram of the brain tissue takes up 21.89% radioactivity of the total dose administered. The sedative effect of alpha-sec-butyl-p-hydroxybenzyl alcohol on the center is rapid and short. It has been proved by the reactions in mice, results indicated by the electrocorticogram obtained from the mice after giving alpha-sec-butyl-p-hydroxybenzyl alcohol, and the correspondence with the distribution of alpha-sec-butyl-p-hydroxybenzyl alcohol in the mouse brain.