| genotoxic assessment of small mammals at an illegal dumpsite at the aomori-iwate prefectural boundary. | in 2003, we examined the chromosomes of grass voles at an illegal dumpsite at the aomori-lwate prefectural boundary. in subsequent years, from 2003-2006, we surveyed the chromosomes of four species of small mammals, namely, the japanese grass vole (microtus montebelli), the large japanese field mouse (apodemus speciosus), the small japanese field mouse (a. argenteus), and the greater japanese shrew mole (urotrichus talpoides). each annual survey revealed, both on a yearly basis and during the en ... | 2009 | 19341331 |
| occurrence of saxitoxins as a major toxin in the ovary of a marine puffer arothron firmamentum. | eleven male and 14 female specimens of a marine puffer arothron firmamentum were collected from oita and iwate prefectures, japan. the toxicity assay using mouse showed that only ovary and skin of the female specimens were toxic, the toxicity scores being 5-740 as paralytic shellfish poison and <5-30 mu/g as tetrodotoxin (ttx), respectively. the toxin extracts from the both tissues were then treated with cartridge columns, and subjected to high performance liquid chromatography and liquid chroma ... | 2004 | 15019480 |