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21.
Sayaka TSUCHIDA Takanari HATTORI Akiko SAWADA Koretsugu OGATA Jun WATANABE Kazunari USHIDA 《The Journal of veterinary medical science / the Japanese Society of Veterinary Science》2021,83(6):1012
We performed a comprehensive fecal metabolite analysis using LC-MS/MS and LC-QTOF-MS approaches as a preliminary study. Feces of Japanese macaques on Yakushima Island were collected from five monkeys at two separate locations. Using the former methodology, 59 substances such as free amino acids, nucleotides, nucleosides and nucleic acid bases, and organic acids in the citrate cycle were quantitatively detected and successfully differentiated in two different monkey groups by the concentrations of nucleic acid metabolites and free amino acids. In the latter, around 12,000 substances were detected both by positive and negative mode in each sample. Differences in signal intensities were observed between two monkey groups in the concentrations of plant secondary metabolites such as cyanogenic glycosides, flavonoids, and phenolics. 相似文献
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Akio SUZUKI Kazuhei SAWADA Temuulen ERDENEBAT Takeshi YAMASAKI Minoru TOBIUME Kinuyo SUGA Motohiro HORIUCHI 《The Journal of veterinary medical science / the Japanese Society of Veterinary Science》2021,83(11):1735
There has been no report on Chronic wasting disease (CWD) cases in Japan to date; however, there is concern about the geographic spread of CWD. To clarify the CWD status in Japan, we conducted CWD monitoring using real-time quaking-induced conversion (RT-QuIC) assay which can detect the low level of CWD prions. A total of 690 obex samples collected from sika deer and Reeves’s muntjac in Hokkaido and Honshu was tested for CWD prions. No CWD-positive cases were found, suggesting that CWD is nonexistent in Japan. Our results also indicate that RT-QuIC assay is useful for continuous monitoring of CWD. Furthermore, nucleotide sequence analysis of the PrP gene revealed sika deer in Japan harbor CWD susceptible allele. 相似文献