The results showed that long-term and non-pulsatile administration of high doses of GnRH-A made in China produced a reversible inhibition of testicular endocrine function in male rats, resulting in decrease of testosterone level and increase of progesterone level both in sera and culture media. Besides, there was a marked decrease in the weight of their seminal vesicles and ventral prostates. It was found that GnRH-A we used had no effect on testis weight, the structure of seminiferous tubules and the production of estrogen by cultured Sertoli cells, and no serious side effect, either. It suggested that home made GnRH-A may be useful in the treatment of sex hormone-dependent diseases as reported in foreign literature.

Plasma HDL, HDL2 and HDL3 were determined in 95 untreated and 87 treated patients with NIDDM and 86 cases with IGT using Eder's modified method.The result showed that HDL, HDL2 and HDL3 were all reduced in these three groups in comparison with control group, but the average concentrations of all 3 subfractions of HDL showed no significant difference among these three groups. It also indicated that HDL abnormality may appear quite early in cases with abnormal glucose tolerance, such as in patients with IGT.