English to Russian Science Medical (general)

It is furthermore most preferable that the lipids and phospholipids of components ai) and bii) are naturally occurring (whether they are derived from a natural source or are of synthetic origin). Naturally occurring lipids tend cause lesser amounts of inflammation and reaction from the body of the subject.

"Not only is this more comfortable for the subject but it may increase the residence time of the resulting depot composition, especially for parenteral depots, since less immune system activity is recruited to the administration site."
Как понять это предложение?

Это не только более удобно для субъекта, но и может увеличивать время время удержания полученной в результате композиции депо-препарата, особенно в случае парентеральных депо, поскольку в области введения....

Спасибо!