A family of Microsoft word processing software products for creating web, email, and print documents.
Define the Style so the the numbers and the parenthese are in italics, and if you have finished editing your document, create a copy of the file and then on that copy, run a macro containing the command
ActiveDocument.ConvertNumberstoText
Then click on More in the Find and Replace facility and with the selection in the Find what control, click on Format>Font and select Italic and insert ( into that control. Then move to the Replace with control and click on Format>Font and then select Regular and insert a ( into that control, then click on Replace All. Do the same for )