There is a new version available: https://www.mendeley.com/release-notes/
just in case anyone interested, this release require qt5
commit dd0704219dbf7c5ffc9c25dd66dbb10277ea5f7e Author: David Seifert <soap@gentoo.org> Date: Sun Mar 5 11:59:29 2017 +0100 sci-misc/mendeleydesktop: Version bump to 1.17.8 Bug: https://bugs.gentoo.org/show_bug.cgi?id=598228