Results 141 to 150 of about 1,394 (166)

Cytotoxic and Antitumor Constituents in Pericarps ofMallotus japonicus

Planta Medica, 1990
A variety of phloroglucinol derivatives isolated from the pericarps of Mallotus japonicus were assessed for growth inhibiting activity against human larynx (HEp-2) and lung (PC-13) carcinoma cells as well as mouse B16 melanoma, leukemia P388, and L5178Y cells. Most of these derivatives were proved to be significantly cytotoxic in culture.
M, Arisawa, A, Fujita, N, Morita, S, Koshimura   +3 more
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Further phloroglucinol derivatives in the fruits of Mallotus japonicus

Phytochemistry, 1985
Abstract Two new rottlerin-like phloroglucinol derivatives were detected from the fruits of Mallotus japonicus and identified as 3-(3,3-dimethylallyl)-5-(3-acetyl-2,4-dihydroxy-5-methyl-6-methoxybenzyl)-phlorobutyrophenone and -phloroisobutyrophenone by spectral studies.
Isao Kouno, Nobuharu Shigematsu, Miyuki Iwagami, Nobusuke Kawano   +3 more
openaire   +1 more source

Studies on Cytotoxic Constituents in Pericarps of Mallotus japonicus. Part III

Journal of Natural Products, 1988
Two new cytotoxic chromene derivatives, butyrylmallotochromene [10] and isobutyrylmallotochromene [11], were isolated from the pericarps of Mallotus japonicus. The new derivatives were identified as 5,7-dihydroxy-6-(2',4'-dihydroxy-3'-acetyl-5'-methyl-6'-methoxybenzyl)-8 - butyryl-2,2-dimethylchromene [10] and 5,7-dihydroxy-6-(2',4'-dihydroxy-3'-acetyl-
A, Fujita, T, Hayashi, M, Arisawa, M, Shimizu, N, Morita, T, Kikuchi, Y, Tezuka   +6 more
openaire   +2 more sources

ent-Labdane Diterpenes from the Stems of Mallotus japonicus

Journal of Natural Products, 2013
Eight new ent-labdane diterpenoids, mallonicusins A-H (1-8), were isolated from the stems of Mallotus japonicus. Their structures, including the absolute configurations, were determined by extensive analyses of spectroscopic data and the ECD spectra of the Pr(FOD)₃ complex of substrates in CCl₄. The absolute configuration of compound 1 was confirmed by
Li, De-Zheng, Tang, Chunping, Quinn, Ronald J, Feng, Yunjiang, Ke, Chang-Qiang, Yao, Sheng, Ye, Yang   +6 more
openaire   +3 more sources

Glucosylation of salicylic acid by cell suspension cultures of Mallotus japonicus

Plant Cell Reports, 1990
Salicylic acid was converted into its O-glucoside when administered to cell suspension cultures of Mallotus japonicus. The efficiency of the glucosylation was highest in the cells grown in Linsmaier-Skoog medium containing 1 μM 2,4-dichlorophenoxy-acetic acid at any scale of culture (7 ml - 3 1).
Y, Umetani, E, Kodakari, T, Yamamura, S, Tanaka, M, Tabata   +4 more
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Gallic acid esters of bergenin and norbergenin from Mallotus japonicus

Phytochemistry, 1990
Abstract Four new gallotannins, 3,4-di-O-, 4,11-di-O- and 3,4,11-tri-O-galloylbergenins and 4-O-galloylnorbergenin, have been isolated from the bark and leaves of Mallotus japonicus, and their structures elucidated on the basis of chemical and spectroscopic evidence.
Reiko Saijo, Gen-ichiro Nonaka, Itsuo Nishioka   +2 more
openaire   +1 more source

Cryo-scanning electron microscopy studies of pits in Pinus Wallichiana and Mallotus Japonicus

IAWA Journal, 2010
Pits of a softwood (Pinus wallichiana) and a hardwood (Mallotus japonicus) were studied by Cryo-scanning electron microscopy (Cryo-SEM). The samples were chemically untreated and fully hydrated during freezing. Tori of P. wallichiana were frequently aspirated.
Roth-Nebelsick, A., Voigt, D., Gorb, S.
openaire   +3 more sources

Identification of pheophorbide a as an inhibitor of receptor for advanced glycation end products in Mallotus japonicus

Journal of Natural Medicines, 2021
Accumulation of advanced glycation end products (AGEs) plays an important role in diabetes, immunoinflammation, and cardiovascular and neurodegenerative diseases. Since AGEs mediate their pathological effects through interaction with receptor for AGEs (RAGE), RAGE antagonists would provide a useful therapeutic option for various health disorders ...
Teruki Matsumoto, Michiyo Matsuno, Norihito Ikui, Yoshiyuki Mizushina, Yume Omiya, Rikako Ishibashi, Taro Ueda, Hajime Mizukami   +7 more
openaire   +2 more sources

Glucosylation of isomeric hydroxybenzoic acids by cell suspension cultures of Mallotus japonicus

Phytochemistry, 1990
Abstract Cultured cells of Mallotus japonicus converted exogenous o -hydroxybenzoic acid into its O -glucoside after a lag period of 8 hr during which time the aglycone was taken up rapidly by the cells, partly excreted and then re-absorbed. The glucosylation of the aglycone into o - O -β- d -glucosylbenzoic acid began almost simultaneously with
Shigeo Tanaka, Keiko Hayakawa, Yasuko Umetani, Mamoru Tabata   +3 more
openaire   +1 more source

Hepatoprotective effects of bergenin, a major constituent of Mallotus japonicus, on carbon tetrachloride-intoxicated rats

Journal of Ethnopharmacology, 2000
The hepatoprotective effects of bergenin, a major constituent of Mallotus japonicus, were evaluated against carbon tetrachloride (CCl(4))-induced liver damage in rats. Bergenin at a dose of 50, 100 or 200 mg/kg was administered orally once daily for successive 7 days and then a mixture of 0.5 ml/kg (ip) of CCl(4) in olive oil (1:1) was injected two ...
H K, Lim, H S, Kim, H S, Choi, S, Oh, J, Choi   +4 more
openaire   +2 more sources