May 16 (Reuters) - DUBAI ISLAMIC INSURANCE AND REINSURANCE CO PSC AMAN.DU : * Q1 NET PROFIT ATTRIBUTABLE TO SHAREHOLDERS 4.5 MILLION DIRHAMS VERSUS 1.5 MILLION DIRHAMS YEAR AGO * Q1 GROSS TAKAFUL CONTRIBUTIONS 69.1 MILLION DIRHAMS VERSUS 54 MILLION...