这个句子怎么翻译呀?很急!!!!!!
However, because effects of the extract from Uncaria rhynchophylla were very highly significant, mostly reductions of 80% from control values, no additional effects of the added G. elata extract were measurable within the limits of the assays, with the exception that a further delay in the onset of WDSs in rats treated with intraperitoneal KA was observed.