manassantin a/saururus

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Preliminary evaluation of manassantin A, a potential neuroleptic agent from Saururus cernuus.

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Manassantin A (MNS-A), a novel dineolignan isolated from Saururus cernuus was evaluated for its central depressant effects. Intraperitoneal (IP) administration of MNS-A to mice at nontoxic doses caused a decrease in spontaneous motor activity and inhibition of amphetamine-induced stereotypy, with an

Further studies on the neuroleptic profile of manassantin A.

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In an earlier preliminary study, manassantin A, a neolignoid from Saururus cernuus was found to show neuroleptic type activity in mice when given by the i.p. route. It blocked the stereotypy and hyperactivity caused by amphetamine at doses comparable to those of haloperidol, but unlike the latter,

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 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

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

LXY6090 - a novel manassantin A derivative - limits breast cancer growth through hypoxia-inducible factor-1 inhibition.

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Hypoxia-inducible factor-1 (HIF-1) represents a novel antitumor target owing to its involvement in vital processes considered hallmarks of cancer phenotypes. Manassantin A (MA) derived from Saururus cernuus has been reported as a selective HIF-1 inhibitor. Herein, the structure of MA was optimized

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

Protective Effects of Manassantin A against Ethanol-Induced Gastric Injury in Rats.

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Manassantin A, a neolignan isolated from Saururus chinensis, is a major phytochemical compound that has various biological activities, including anti-inflammatory, neuroleptic, and human acyl-CoA : cholesterol acyltransferase (ACAT) inhibitory activities. In this study, we investigated the

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

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