Araujo A C, Figueredo-Silva J, Souto-Padrón T, Dreyer G, Norões J, De Souza W
Laboratório de Ultraestrutura Hertha Meyer, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Brasil.
J Parasitol. 1995 Jun;81(3):468-74.
Despite the great importance of Wuchereria bancrofti in causing human lymphatic filariasis, only conventional morphological studies have been completed with adult forms of this filaria. No ultrastructural studies have been carried out, mainly due to the difficulty in obtaining viable parasites from human tissues and the lack of a suitable experimental model or in vitro cultivation. With the recent success in using ultrasound to localize adult worms in living tissues and their surgical recovery from human lymphatic vessels, we show in the present paper the first ultrastructural observations of this filarial form. The cuticle surface analyzed by scanning electron microscopy showed a transversal striated aspect with periodic annulations and many small protuberances irregularly distributed along the filaria. The adults present a specialized cephalic area, with the oral opening surrounded by a circular mouth, papillae, and amphidial opening. Other structures, for example the anal, vulvar, and cloacal opening and spicules, were also observed and are described herein.
尽管班氏吴策线虫在引起人类淋巴丝虫病方面极为重要，但对该丝虫成虫的研究仅完成了传统形态学研究。尚未开展超微结构研究，主要原因是难以从人体组织中获取活的寄生虫，且缺乏合适的实验模型或体外培养方法。随着近期利用超声在活体组织中定位成虫并从人体淋巴管中手术取出成虫取得成功，我们在本文中展示了对这种丝状形态的首次超微结构观察结果。通过扫描电子显微镜分析的角质层表面呈现出横向有条纹的外观，带有周期性环纹，并且沿丝虫有许多不规则分布的小突起。成虫具有一个特殊的头部区域，口腔开口被一个圆形口、乳突和双乳突孔包围。还观察到了其他结构，例如肛门、阴门、泄殖腔开口和交合刺，并在此进行描述。
