目的研究G145R突变后乙肝表面抗原(HBsAg) "a" 决定簇合成肽的免疫学特性改变情况。方法首先合成2条短肽P1-wt和P2-145R,分别代表野毒株和G145R突变后HBsAg "a" 决定簇合成肽。然后用β-巯基乙醇(2-ME)变性试验以及用乙肝疫苗标准品制备的小鼠多抗血清研究2条合成肽的空间构象以及抗原性异同。最后用等量合成肽免疫小鼠,用酶免疫法、竞争抑制试验和Western blot
The authors report the case of a 11-year-old girl admitted for a mesenteric tumor discovered during an appendicectomy. The abdominal D ppler echography and co
Background: There has been controversy over whether orbital lymphangioma is a true entity in the orbit or various venous malformations. Case: A 1- year-old girl
Background: Epstein-Barr virus (EBV)has been implicated in B-cell lymphoma associated with iatrogenic immune dysregulation, primarily in the context of extracut