"highlighted the differences" is a correct and commonly used phrase in written English.
It means to draw attention to or point out the distinctions or variations between things. Example: During the meeting, the presenter highlighted the differences between the two proposals, emphasizing the benefits of each one.
Relative to meta-analysis where the objective was to identify the shared pattern of metabolic response to stress, the multigroup analysis highlighted the differences in the pattern of stress response across wild type and different, hypersensitive mutants.
They also highlighted the differences between those men.
Whatever else it has achieved, Blaine's undertaking has highlighted the differences between American and British audiences.
Many past productions have highlighted the differences between the chivalric Trojans and the pragmatic Greeks.
Two newspaper cuttings have highlighted the differences in tabloid attitudes between the UK and Germany.
The case, therefore, highlighted the differences in protection offered to reporters across states and in the federal courts.
The study also highlighted the differences between men's and women's perceptions of ideal beauty.
As The Great British Class Survey of 2011 on the BBC's Lab UK website highlighted, the differences between groups have, in some ways, become more subtle.
But the mixed response she drew from conservatives here highlighted the differences that still split the Iranian government over the pace of any opening to the United States.
Chris Boardman himself highlighted the differences between the '74 and '94 Tours in a column for the Observer on 3 July.
Others have highlighted the differences between the American fact-sheet, released by the White House on the key parameters of the deal, and an Iranian version.
