manassantin a/saururus chinensis

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Human ACAT-1 and -2 inhibitory activities of saucerneol B, manassantin A and B isolated from Saururus chinensis.

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The sesquineolignan, saucerneol B (1), and dineolignans, manassantin A (2), and manassantin B (3), were isolated from the methanol extracts of Saururus chinensis root and elucidated by their spectroscopic data analysis. Compounds 1-3 inhibited hACAT-1 and hACAT-2 with IC(50) values of 43.0 and 124.0

Inhibitory effects of manassantin A and B isolated from the roots of Saururus chinensis on PMA-induced ICAM-1 expression.

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Cell adhesion inhibitors were isolated from the methanol extract of Saururus chinensis roots by bioactivity-guided fractionation. The active compounds were identified as manassantin A ( 1) and B ( 2), dineolignan compounds. Compounds 1 and 2 inhibited PMA-induced ICAM-1/LFA-1-mediated homotypic

Manassantin A isolated from Saururus chinensis inhibits 5-lipoxygenase-dependent leukotriene C4 generation by blocking mitogen-activated protein kinase activation in mast cells.

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In this study, manassantin A (Man A), an herbal medicine isolated from Saururus chinensis (S. chinensis), markedly inhibited 5-lipoxygenase (5-LO)-dependent leukotriene C(4) (LTC(4)) generation in bone marrow-derived mast cells (BMMCs) in a concentration-dependent manner. To investigate the

Manassantin A and B from Saururus chinensis inhibiting cellular melanin production.

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Hyperpigmentation disorders such as freckles and senile lentigines in the skin are associated with abnormal accumulation of melanin pigments. In this study, two lignan constituents were isolated from Saururus chinensis Baill (Saururaceae) as inhibitors of cellular melanin production by

Manassantin A and B from Saururus chinensis inhibit interleukin-6-induced signal transducer and activator of transcription 3 activation in Hep3B cells.

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Inhibition of interleukin-6 (IL-6) has been postulated to be an effective therapy in the pathogenesis of several inflammatory diseases. The current study was performed to examine potential effects of manassantin A and B isolated from Saururus chinensis on the IL-6-induced response to human hepatoma

Manassantin A and B isolated from Saururus chinensis inhibit TNF-alpha-induced cell adhesion molecule expression of human umbilical vein endothelial cells.

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Leukocyte adhesion to the vascular endothelium is a critical initiating step in inflammation and atherosclerosis. We have herein studied the effect of manassantin A (1) and B (2), dineolignans, on interaction of THP-1 monocytic cells and human umbilical vein endothelial cells (HUVEC) and expression

Ethanol extracts of Saururus chinensis suppress ovalbumin-sensitization airway inflammation.

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OBJECTIVE The aerial part of Saururus chinensis has been used in folk medicine to treat several inflammatory diseases in China and Korea. Previously, our group reported that anti-asthmatic activity of an ethanol extract of Saururus chinensis (ESC) might occur, in part, via the inhibition of

Protective effect of lignans against sepsis from the roots of Saururus chinensis.

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In the course of isolating preventive agents from sepsis based on the in vivo assay model from the EtOAc extract of the roots of Saururus chinensis, twelve lignans, sarisan (1), erythro-austrobailignan-6 (2), meso-dihydroguaiaretic acid (3), saucerneol B (4), manassantin B (5), manassantin A (6),

A new dineolignan from Saururus chinensis root.

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A new tetrahydrofuradineolignan, called 4-O-demethylmanassantin A (1) was isolated from underground parts of Saururus chinensis together with three known dineolignans, 4-O-demethylmanassantin B (2), manassantin A (3) and manassantin B (4).

Immunosuppressive lignans isolated from Saururus chinensis.

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Bioactivity-guided fractionation of Saururus chinensis (Saururaceae) using a lymphoproliferation assay led us to isolate 5 lignans (compounds 1 - 5). Compounds 1 - 5 were identified as sauchinone, (-)-saucerneol, saucerneol C, manassantin A, and manassantin B, respectively, by spectroscopic

Inhibition of DNA topoisomerases I and II and cytotoxicity by lignans from Saururus chinensis.

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Thirteen lignans, erythro-austrobailignan-6 (1), meso-dihydroguaiaretic acid (2), sauchinone (3), 1'-epi-sauchinone (4), saucerneol D (5), manassantin B (6), manassantin A (7), nectandrin B (8), machilin D (9), saucerneol F (10), saucerneol G (11), saucerneol H (12) and saucerneol I (13), were

Suppression of RelA/p65 transactivation activity by a lignoid manassantin isolated from Saururus chinensis.

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In our search for NF-kappaB inhibitors from natural resources, we have previously identified two structurally related dilignans, manassantin A and B as specific inhibitors of NF-kappaB activation from Saururus chinensis. However, their molecular mechanism of action remains unclear. We here

Lignans from Saururus chinensis inhibiting the transcription factor NF-kappaB.

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The sesquineolignans, saucerneol D and saucerneol E were isolated from the roots of Saururus chinensis together with four known lignans, manassantin A, manassantin B, (-)-saucerneol methyl ether, and (+)-saucernetin. Structure elucidation was based on the analysis of spectroscopic data and

Lignan, sesquilignans and dilignans, novel HIV-1 protease and cytopathic effect inhibitors purified from the rhizomes of Saururus chinensis.

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Five lignans were isolated from the ethyl acetate extracts of Saururus chinensis rhizomes and evaluated for anti-HIV-1 activity. Their structures were elucidated as two dilignans, manassantin A (1), manassantin B (2), two sesquilignans, saucerneol B (3) and saucerneol C (4), and a new lignan,

Manassantin A inhibits cAMP-induced melanin production by down-regulating the gene expressions of MITF and tyrosinase in melanocytes.

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Microphthalmia-associated transcription factor (MITF) is inducible in response to cAMP through the cAMP-responsive element-binding protein (CREB) and plays a pivotal role in the melanocyte-specific expression of tyrosinase or tyrosinase-related proteins (TRPs) for melanin biosynthesis. Manassantin A

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