Adriamycin (ADM) was encapsulated in multivesicular lipasomes which composed of lipids of eggs origin. The chemothera-peutic activity of the encapsulated ADM was compared with that of free ADM at equal doses in micc bearing SRS lymphoma. The results showed that encapsulation of ADM into lipo-somes resulting in markedly increased efficacy than free ADM. At the dose of 1 mg?kg-1 (every 24 h for 3 separate intraperitoneal injections) , free ADM and ADM entrapped intolipasomes with the same dose had 1. 5 times and 3 times increase the survival time of SRS lymphoma mice respectively as compared with that of the control. The curative rate of mice treated by liposome ADM was 100% on 30 days and 60% on 60 days. The results of LD50 determination showed that the acute toxicity of mice treated by liposome ADM was much less than that of the mice treated with free ADM.

Objective　To detect the genetic relationship between monoamine oxidase(MAO) A type gene and attention deficit hyperactivity disorder(ADHD) in Chinese. Methods　 The haplotype-based haplotype relative risk(HHRR) and the transmission disequilibrium test(TDT) methods were used to analyze the genetic association and linkage in 60 ADHD children and their parents. Results　 In this sample were found significant association (χ2=4.90, P<0.05) and linkage (χ2=4.84, P<0.05) between the MAOCA 114bp allele and DSM-III-R-diagnosed ADHD in trios composed of father, mother and affected offspring. Conclusion　 The above results suggested that ADHD was associated and in linkage with MAO A gene, and the susceptibility loci might reside in chromosome Xp11 for ADHD.