Zobrazeno 1 - 10
of 89
pro vyhledávání: '"Ken-ichi Nakaya"'
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-10 (2023)
Abstract Focal segmental glomerulosclerosis, characterized by decreased numbers of podocytes in glomeruli, is a common cause of refractory nephrotic syndrome. Recently, we showed that enhanced glycosphingolipid GM3 expression after administration of
Externí odkaz:
https://doaj.org/article/6534a913992947a38229def99979aea9
Publikováno v:
ACS Omega, Vol 8, Iss 50, Pp 48584-48585 (2023)
Externí odkaz:
https://doaj.org/article/894118ff70284ee89cb5dfd7ab03809f
Autor:
Nagako Kawashima, Shokichi Naito, Hisatoshi Hanamatsu, Masaki Nagane, Yasuo Takeuchi, Jun-ichi Furukawa, Norimasa Iwasaki, Tadashi Yamashita, Ken-ichi Nakayama
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-11 (2022)
Abstract Podocytopathy, which is characterized by injury to podocytes, frequently causes proteinuria or nephrotic syndrome. There is currently a paucity of effective therapeutic drugs to treat proteinuric kidney disease. Recent research suggests the
Externí odkaz:
https://doaj.org/article/0216426e782d4e3f8a41540bff09bd55
Autor:
Zulfiqar Ali, Tetsuro Ito, Toshiyuki Tanaka, Dedy Darnaedi, Miyuki Furusawa, Ibrahim Iliya, Ken-ichi Nakaya, Masayoshi Oyama, Jin Murata, Munekazu Iinuma
Publikováno v:
Chemistry & Biodiversity. 2:1673-1684
Five new resveratrol (=5-[(E)-2-(4-hydroxyphenyl)ethenyl]benzene-1,3-diol) tetramers, upunaphenols H-J (1-3) and trans-(4) and cis-upunaphenol K (5), were isolated from the stem of Upuna borneensis (Dipterocarpaceae). Their structures were elucidated
Autor:
Tetsuro Ito, Miyuki Furusawa, Munekazu Iinuma, Yoshikazu Takahashi, Toshiyuki Tanaka, Ibrahim Iliya, Soedarsono Riswan, Yumiko Kubota, Ken-ichi Nakaya, Ryuichi Sawa
Publikováno v:
Tetrahedron Letters. 46:3111-3114
A new resveratrol tetramer, shoreaketone, was isolated from the stem bark of Shorea uliginosa (Dipterocarpaceae). The structure and the relative configuration were confirmed on the basis of 1D- and 2D-NMR spectral data. The structure has a novel fram
Publikováno v:
Bulletin of the Chemical Society of Japan. 78:464-467
A chiral pyrromethene–BF2 complex dye, showing absorption (λmax) and emission maxima (λem) at 499 and 518 nm in acetonitrile, respectively, was synthesized. Racemic mexiletine smoothly reacted with...
Autor:
Tetsuro Ito, Dedy Darnaedi, Jin Murata, Ken-ichi Nakaya, Zulfiqar Ali, Toshiyuki Tanaka, Miyuki Furusawa, Ibrahim Iliya, Munekazu Iinuma
Publikováno v:
CHEMICAL & PHARMACEUTICAL BULLETIN. 53:219-224
Four new resveratrol derivatives, upunaphenols B (1), C (4), D (5) (resveratrol tetramer) and E (6, resveratrol dimer with a C6-C1 unit), together with nine known resveratrol oligomers and resveratrol were isolated from an acetone soluble part of ste
Autor:
Tetsuro Ito, Dedy Darnaedi, Jin Murata, Munekazu Iinuma, Ken-ichi Nakaya, Ryuichi Sawa, Y. Takahashi, Toshiyuki Tanaka
Publikováno v:
Journal of Natural Products. 67:932-937
Three new stilbene oligomers (1-3) were isolated from the stem bark of Vatica pauciflora. The structures of a resveratrol heptamer (pauciflorol D) (1), a resveratrol dimer (pauciflorol E) (2), and an indanone derivative (pauciflorol F) (3) were eluci
Autor:
Ryuichi Sawa, Jin Murata, Ken-ichi Nakaya, Munekazu Iinuma, Yoshikazu Takahashi, Toshiyuki Tanaka, Tetsuro Ito, Dedy Darnaedi
Publikováno v:
Helvetica Chimica Acta. 87:479-495
Two new stilbene tetramers, grandiphenols A (1) and B (2), along with ten known stilbene oligomers and bergenin were isolated from the stem of Dipterocarpus grandiflorus. The structures of 1 and 2 composed of four resveratrol (=5-[(1E)-2-(4-hydroxyph
Autor:
Hikaru Nakamura, Munekazu Iinuma, Toshiyuki Tanaka, Soedarsono Riswan, Ken-ichi Nakaya, Tetsuro Ito, Hiroshi Naganawa, Yoshikazu Takahasi
Publikováno v:
Helvetica Chimica Acta. 86:3394-3401
From the stem bark of Shorea hemsleyana, a new dimeric stilbenoid with a five-membered lactone ring, shorealactone (1) was isolated. The absolute configuration was determined by means of 2D NMR techniques and X-ray crystal-structure analysis of its 4