I had to restructure my URL's and had to introduce some 301 redirects. However, then the Facebook likes and Google +1's of the old pages are also lost.

Besides it's a shame those numbers don't show anymore, is my PageRank/linkjuice affected by the loss in likes/+1's?

P.S.: I know a 301 redirect by itself results in a slight linkjuice loss, but that's not what I'm asking.