Results 121 to 130 of about 560 (145)

Studies on Cytotoxic Constituents in Pericarps of Mallotus japonicus, Part II

Journal of Natural Products, 1985
Two new phloroglucinol derivatives, mallotolerin (8) and mallotochromanol (9), were isolated from the cytotoxic fraction of the pericarps of Mallotus japonicus. The new derivatives were identified as 3-(3-methyl-2-hydroxybut-3-enyl)-5-(3-acetyl-2,4-dihydroxy-5-me thy l-6- methoxybenxyl)-phlorbutyrophenone (8) and 8-acetyl-5,7-dihydroxy-6-(3-acetyl-2,4 ...
M, Arisawa, A, Fujita, R, Suzuki, T, Hayashi, N, Morita, N, Kawano, S, Koshimura   +6 more
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Phenol glucoside gallates from Mallotus japonicus

Phytochemistry, 1989
Abstract Five phenol glucoside gallates were isolated from Mallotus japonicus , and their structures characterized by chemical and spectroscopic means as 4-hydroxy-2-methoxyphenol 1- O -β- d -(6′- O -galloyl)glucoside, 4-hydroxy-3-methoxyphenol 1- O -β- d -(2′,6′-di- O -galloyl)glucoside, 4-hydroxy-3-methoxyphenol 1- O -β- d -2′,3′,6′-tri- O ...
Reiko Saijo, Gen-ichiro Nonaka, Itsuo Nishioka   +2 more
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Phloroglucinol derivatives from fruits of Mallotus japonicus

Phytochemistry, 1983
Abstract Two new rottlerin-like phloroglucinol derivatives were isolated from the fruits of Mallotus japonicus and identified by chemical and spectral data as 3-(3, 3-dimethylallyl)-5-(3-acetyl-2, 4-dihydroxy-5-methyl-6-methoxybenzyl)-phloracetophenone and 3-(3-methyl-2-hydroxybut-3-enyl)-5-(3-acetyl-2, 4-dihydroxy-5-methyl-6-methoxybenzyl ...
Nobuharu Shigematsu, Isao Kouno, Nobusuke Kawano   +2 more
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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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Antitumor-Promoting Activity of Mallotojaponin, a Major Constituent of Pericarps of Mallotus japonicus

Oncology, 2009
Mallotojaponm, a major constituent of the pericarps of Mallotus japonicus (Euphorbiaceae), inhibited the action of tumor promoter in vitro and in vivo; it inhibited tumor promoter-enhanced phospholipid metabolism in cultured cells, and also suppressed the promoting effect of 12-O-tetradecanoylphorbol-13-acetate on skin tumor formation in mice initiated
Y, Satomi, M, Arisawa, H, Nishino, A, Iwashima   +3 more
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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.
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Isolation and evaluation of the radical-scavenging activity of the antioxidants in the leaves of an edible plant, Mallotus japonicus

Food Chemistry, 2008
The antioxidative properties of a hot water extract of the leaves of Mallotus japonicus were evaluated. The extract had a high phenolic content and strong antioxidative activity, compared with green tea, rooibos tea, and red wine. Six phenolic compounds were isolated as antioxidative components by HPLC.
Hiromasa, Tabata, Takuya, Katsube, Terumi, Tsuma, Yukari, Ohta, Naoto, Imawaka, Toshihiko, Utsumi   +5 more
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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
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Antihepatotoxic activity of bergenin, the major constituent of Mallotus japonicus, on carbon tetrachloride-intoxicated hepatocytes

Journal of Ethnopharmacology, 2000
To determine the antihepatotoxic activity of bergenin from Mallotus japonicus, carbon tetrachloride (CCl4)-induced cytotoxicity in primary cultured rat hepatocytes has been adopted as an assay system. Bergenin significantly reduced the activities of glutamic pyruvic transaminase and sorbitol dehydrogenase released from the CCl4-intoxicated hepatocytes.
H S, Kim, H K, Lim, M W, Chung, Y C, Kim
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Protective effects of bergenin, the major constituent of Mallotus japonicus, on d-galactosamine-intoxicated rat hepatocytes

Journal of Ethnopharmacology, 2000
This study was designed to investigate the effects of bergenin against D-galactosamine-induced injury in primary cultured rat hepatocytes. Bergenin (100 microM) decreased the release of glutamic pyruvic transaminase and sorbitol dehydrogenase by 62 and 50%, respectively, into hepatocyte medium incubated for 14 h with 1.5 mM galactosamine. Decreased RNA
H K, Lim, H S, Kim, M W, Chung, Y C, Kim
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