More recently (2004-present) his basic research interests have focused on the study of molecular mechanisms involved in reproductive aging as well as the genetic factors which allow some women to remain fertile well into their forties. In a collaborative effort with bioinformatics researchers he performed gene array analysis which revealed several gene families whose expression differed in an older fertile population. He currently uses a mouse model to investigate the molecular mechanism of the rejuvenation potential of pregnancy on stem cell activity.
Professor Laufer is past chairman of the Israel Fertility Society and a member of the advisory board of ESHRE (European Society of Human Reproduction and Embryology). He serves on the editorial board of Fertility Sterility and is an associate editor for both The Journal of Assisted Reproduction and Genetics and of Reproductive Sciences. He is a coauthor of over twenty chapters in books and has edited both Advances in Assisted Reproductive Technologies (Plenum Press, 1988) and Current Diagnosis and Treatment Obstetrics and Gynecology (Lange series, McGraw Hill, 2007).