准分子激光原位角膜磨镶术(laser in situ keratomileusis,LASIK)各方面的研究日趋完善.国内外对其手术方法、临床疗效、并发症等方面报道较多.准分子激光角膜切削术(photorefractive keratectomy,PRK)及LASIK术后患者Shirmer试验及泪膜破裂时间与正常对照组相比有差异.其中PRK术后患者泪液中IgA、IgG、IgM含量均较术前降低,同时
AIM:To investigate the role of Ras association domain family protein 1 isoform A (RASSF1A) in gastric tumorigenesis. METHODS:Through over-expression of RASSF1A