虹鳟假鳃组织中的碳酸酐酶免疫细胞化学定位(英文)

研究目的:假腮的功能早已引起科学家兴趣,但还有待阐明。本文通过研究硬骨鱼类品种虹鳟鱼(Oncorhynchus mykiss)的假腮碳酸酐酶的免疫定位,来探讨假腮碳酸酐酶的生理功能。研究方法:免疫组织化学染色技术。重要结论:免疫组化结果显示碳酸酐酶分布在假腮细胞中,更精确地说是在其细胞顶端分布。细胞基底端、管状系统、毛细血管和柱细胞均无免疫染色。免疫细胞化学定位进一步验证了这些结果,并显示一部分是细胞质碳酸酐酶,其余的与细胞膜结构连接。此外,腔隙层未显示出免疫过氧化物酶的活性。本研究揭示了假腮碳酸酐酶的功能与细胞外介质有关,碳酸酐酶能干预传入神经纤维刺激机制。     

Formation d'Ingénieurs en Génie Sanitaire: un exemple de collaboration entre deux universités

For eight years, the Federal Institute of Technology of Lausanne (EPFL), Switzerland and the Ecole Inter-Etats d'Ingénieurs de I'Equipement Rural (EIER) at Ouagadougou Burkina Faso, have collaborated in the postgraduate education and training of university engineers, offering a course in Sanitary Engineering, comprising 8 months in Ouagadougou, followed by 3 months in Lausanne. Successful students receive a diploma confered by the two Engneering Schools. Such collaboration is productive only if planned on a long-trem basis forcing some of the limiting principles of technical development programmes to be sidestepped. The better students may continue their studies towards an MSc or a PhD, developing the EIER's research facilities, working on topics directly related to Afircan needs and may benefit fiom EPFL's facilities and scientific experience.