DUBAI, April 28 (Reuters) - Here are some factors that may affect Middle East stock markets on Monday. Reuters has not verified the press reports and does not vouch for their accuracy.INTERNATIONAL/REGIONAL* GLOBAL MARKETS-Asian shares stutter on Ukraine tension, event risk MKTS/GLOB* Brent nudges up near $110 on Ukraine tensionsCLc1LCOc1O/R* Gold at 1-1/2 week high on safe-haven bids on UkraineGO