教師資料查詢 | 類別: 期刊論文 | 教師: 溫啟仲 WEN,CHI-CHUNG (瀏覽個人網頁)

標題:Movement disorder and neuromuscular change in zebrafish embryos after exposure to caffeine
學年97
學期1
出版(發表)日期2008/09/01
作品名稱Movement disorder and neuromuscular change in zebrafish embryos after exposure to caffeine
作品名稱(其他語言)
著者陳曜鴻; Chen, Yau-hung; Huang, Yi-hui; 溫啟仲; Wen, Chi-chung; Wang, Yun-hsin; Chen, Wei-li; Chen, Li-chao; Tsay, Huey-jen
單位淡江大學化學學系
出版者Philadelphia: Elsevier Inc.
著錄名稱、卷期、頁數Neurotoxicology and Teratology 30(5), pp.440-447
摘要Though caffeine is broadly distributed in many plants and foods, little is known about the teratogenic effects of caffeine during early embryonic development. Here, we used zebrafish as a model to test toxicity and teratogenicity since they have transparent eggs, making the organogenesis of zebrafish embryos easier to observe. When the exposure doses of caffeine were less than 150 ppm (17.5, 35, 50, 100 and 150 ppm), the zebrafish embryos exhibited no significant differences in survival rates after comparison with vehicle-control (0 ppm) group. As the exposure dosages increased, the survival rates decreased. No embryos survived after treatment with 300 ppm caffeine or higher dosages. The most evident change in embryos treated with caffeine was a shorter body length (vehicle-control: 3.26 ± 0.01 mm, n = 49; vs 150 ppm of caffeine: 2.67 ± 0.03 mm, n = 50). In addition, caffeine-treated embryos exhibited significantly reduced tactile sensitivity frequencies of touch-induced movement (vehicle-control: 9.93 ± 0.77 vs 17.5–150 ppm caffeine: 5.37 ± 0.52–0.10 ± 0.06). Subtle changes are easily observed by staining with specific monoclonal antibodies F59, Znp1 and Zn5 to detect morphological changes in muscle fibers, primary motor axons and secondary motor axon projections, respectively. Our data show that the treatment of caffeine leads to misalignment of muscle fibers and motor neuron defects, especially secondary motor neuron axonal growth defects.
關鍵字Acetylcholine receptor; Caffeine; Embryonic development; Motor neuron; Muscle; Zebrafish
語言英文
ISSN0892-0362
期刊性質國外
收錄於SCI
產學合作
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