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카스가 아사코(Asako Kasuga),박종환(Jong-Hwan Park),석승혁(Seung-Hyeok Seok),백민원(Min-Won Baek),이희영(Hui-Young Lee),김동재(Dong-Jae Kim),박재학(Jae-Hak Park) 한국실험동물학회 2004 Laboratory Animal Research Vol.20 No.2
This title of a recent perspective in Science reflects the growing importance of a new model organism for developmental research, the zebrafish Danio reno. Due to its small size, rapid generation time, powerful genetic systems, and genomic resources, the zebrafish has emerged as an important model of vertebrate development and human disease. In this study, we will focus on the histology of zebrafish and it might be helpful for future research in this model system.
Seok, Seung-Hyeok,Koo, Hye Cheong,Kasuga, Asako,Kim, Yeun,Lee, Eun Gae,Lee, Hyeyoung,Park, Jong-Hwan,Baek, Min-Won,Lee, Hui-Young,Kim, Dong-Jae,Lee, Byeung-Hee,Lee, Yong-Soon,Cho, Sang-Nae,Park, Jae-H Elsevier 2006 Veterinary microbiology Vol.114 No.3
<P><B>Abstract</B></P><P>Skin ulcers, scoliosis, and dropsy-like scale edema were observed in laboratory-maintained zebrafish. Affected fish had multifocal granulomas not only in internal organs such as the liver, intestine, genital organs, kidney, muscle, and spleen but also in the fin, epithelium, gills, and sclera of the eyes. Large numbers of acid-fast-rod-shaped bacteria were observed within the necrotic centers of well-demarcated, multifocal granulomas with Gram's stain and Ziehl–Neelson's stain. The size of the <I>Mycobacterium</I> spp. was 1–2μm×2–3μm with a double-layered cell wall, based upon electron-microscopical features. Definitive diagnosis of these outbreaks was obtained by culture on selective media followed by PCR-restriction fragment length polymorphism analysis (PRA) of the <I>rpoB</I> gene for species identification. The amplified 360-bp products of the <I>rpoB</I> gene of mycobacteria isolated from zebrafish were digested with <I>Msp</I>I restriction enzyme, which revealed unique band patterns matching those of <I>Mycobacterium abscessus</I> and <I>Mycobacterium chelonae</I> which are responsible for skin and soft tissue infection caused by rapidly growing mycobacteria in humans. This is the first documentation of the precise identification of zoonotic non-tuberculous mycobacteria isolated from laboratory-maintained zebrafish by the PRA of the <I>rpoB</I> gene; this study thus provides a great deal of useful epidemiological information and reduces the likelihood that epizootics will occur.</P>