Several of the region’s wealthiest casino moguls saw their fortunes tumble this week after officials in Macau launched a regulatory review that threatens to tighten the government’s grip on “Asia’s Las Vegas.” The Macau government said on Tuesday that it’s seeking to re-evaluate the laws that govern the world’s largest gambling hub. The 45-day public consultation covers issues including the number and the duration of licenses for casino operators, as well as the introduction of government representatives to supervise gaming operations. Hong Kong’s Lui Che Woo and his family were hit hardest by the news. Shares of their locally listed…