Nishiyama Y - Search Results

1

Biotransformation of phenolic tetrahydroprotoberberines in plant cell cultures followed by LC-NMR, LC-MS, and LC-CD.

Iwasa K, Cui W, Takahashi T, Nishiyama Y, Kamigauchi M, Koyama J, Takeuchi A, Moriyasu M, Takeda K. Iwasa K, et al. Among authors: nishiyama y. J Nat Prod. 2010 Feb 26;73(2):115-22. doi: 10.1021/np900440d. J Nat Prod. 2010. PMID: 20085306

2

Biotransformation of phenolic 1-benzyl-N-methyltetrahydroisoquinolines in plant cell cultures followed by LC/NMR, LC/MS, and LC/CD.

Cui W, Iwasa K, Sugiura M, Takeuchi A, Tode C, Nishiyama Y, Moriyasu M, Tokuda H, Takeda K. Cui W, et al. Among authors: nishiyama y. J Nat Prod. 2007 Nov;70(11):1771-8. doi: 10.1021/np068060r. Epub 2007 Nov 8. J Nat Prod. 2007. PMID: 17988098

3

Online structural elucidation of alkaloids and other constituents in crude extracts and cultured cells of Nandina domestica by combination of LC-MS/MS, LC-NMR, and LC-CD analyses.

Iwasa K, Takahashi T, Nishiyama Y, Moriyasu M, Sugiura M, Takeuchi A, Tode C, Tokuda H, Takeda K. Iwasa K, et al. Among authors: nishiyama y. J Nat Prod. 2008 Aug;71(8):1376-85. doi: 10.1021/np8001496. Epub 2008 Aug 1. J Nat Prod. 2008. PMID: 18671433

4

Enantiomeric separation of racemic 1-benzyl-N-methyltetrahydroisoquinolines on chiral columns and chiral purity determinations of the O-methylated metabolites in plant cell cultures by HPLC-CD on-line coupling in combination with HPLC-MS.

Iwasa K, Doi Y, Takahashi T, Cui W, Nishiyama Y, Tode C, Moriyasu M, Takeda K, Minami H, Ikezawa N, Sato F. Iwasa K, et al. Among authors: nishiyama y. Phytochemistry. 2009 Jan;70(2):198-206. doi: 10.1016/j.phytochem.2008.12.001. Epub 2009 Jan 12. Phytochemistry. 2009. PMID: 19138775

5

Quaternary isoquinoline alkaloids from Xylopia parviflora.

Nishiyama Y, Moriyasu M, Ichimaru M, Iwasa K, Kato A, Mathenge SG, Chalo Mutiso PB, Juma FD. Nishiyama Y, et al. Phytochemistry. 2004 Apr;65(7):939-44. doi: 10.1016/j.phytochem.2003.12.010. Phytochemistry. 2004. PMID: 15081299

6

Potential cancer chemopreventive activity of simple isoquinolines, 1-benzylisoquinolines, and protoberberines.

Cui W, Iwasa K, Tokuda H, Kashihara A, Mitani Y, Hasegawa T, Nishiyama Y, Moriyasu M, Nishino H, Hanaoka M, Mukai C, Takeda K. Cui W, et al. Among authors: nishiyama y. Phytochemistry. 2006 Jan;67(1):70-9. doi: 10.1016/j.phytochem.2005.10.007. Epub 2005 Nov 28. Phytochemistry. 2006. PMID: 16310234

7

Secondary and tertiary isoquinoline alkaloids from Xylopia parviflora.

Nishiyama Y, Moriyasu M, Ichimaru M, Iwasa K, Kato A, Mathenge SG, Chalo Mutiso PB, Juma FD. Nishiyama Y, et al. Phytochemistry. 2006 Dec;67(24):2671-5. doi: 10.1016/j.phytochem.2006.07.011. Epub 2006 Sep 11. Phytochemistry. 2006. PMID: 16963092

8

Antinociceptive effects of the extracts of Xylopia parviflora bark and its alkaloidal components in experimental animals.

Nishiyama Y, Moriyasu M, Ichimaru M, Iwasa K, Kato A, Mathenge SG, Chalo Mutiso PB, Juma FD. Nishiyama Y, et al. J Nat Med. 2010 Jan;64(1):9-15. doi: 10.1007/s11418-009-0356-2. J Nat Med. 2010. PMID: 19730974

9

Chemical studies on the roots of Uvaria welwitschii.

Moriyasu M, Nakatani N, Ichimaru M, Nishiyama Y, Kato A, Mathenge SG, Juma FD, Chalo Mutiso PB. Moriyasu M, et al. Among authors: nishiyama y. J Nat Med. 2011 Apr;65(2):313-21. doi: 10.1007/s11418-010-0498-2. Epub 2011 Jan 15. J Nat Med. 2011. PMID: 21234693

10

Bioconversion studies in cultured cells of Corydalis species.

Iwasa K, Kuribayashi A, Sugiura M, Nishiyama Y, Ichimaru M, Moriyasu M, Lee DU. Iwasa K, et al. Among authors: nishiyama y. Pharmazie. 2004 Jun;59(6):480-3. Pharmazie. 2004. PMID: 15248465

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