diarylheptanoid/vefjadrep

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Diarylheptanoid hirsutenone prevents tumor necrosis factor-alpha-stimulated production of inflammatory mediators in human keratinocytes through NF-kappaB inhibition.

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Keratinocytes may play an important role in the pathogenesis of skin disease in atopic dermatitis. Diarylheptanoids such as oregonin and hirstanonol are demonstrated to have anti-inflammatory and anti-oxidant effects. The present study was to investigate the effect of hirsutenone, one of the

Effects of diarylheptanoids on the tumor necrosis factor-alpha-induced expression of adhesion molecules in human umbilical vein endothelial cells.

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Atherosclerosis is a chronic inflammatory disease that is characterized by infiltration of mononuclear lymphocytes into the intima through the expression of adhesion molecules on the arterial wall. In the present study, we report the inhibitory effects of two diarylheptanoids, 5-O-methylhirsutanonol

Phenolic compounds isolated from Dioscorea zingiberensis protect against pancreatic acinar cells necrosis induced by sodium taurocholate.

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One new bibenzyl (1) and one new phenanthrene (2), together with two known bibenzyls (3-4) and four known diarylheptanoids (5-8) were isolated from the rhizomes of Dioscorea zingiberensis. The structures of 1-2 were elucidated by spectroscopic methods including 1D and 2D NMR. Phenols 1-8 were

Diarylheptanoids suppress expression of leukocyte adhesion molecules on human vascular endothelial cells.

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Diarylheptanoids possess potent anti-inflammatory properties. However, the mechanism of their action is not fully understood. In this study, we found that three diarylheptanoids, 1-(3, 5-dimethoxy-4-hydroxyphenyl)-7-phenylhept-1-en-3-one (YPE-01), yakuchinone B and demethyl-yakuchinone B, reduced

A diarylheptanoid from lesser galangal (Alpinia officinarum) inhibits proinflammatory mediators via inhibition of mitogen-activated protein kinase, p44/42, and transcription factor nuclear factor-kappa B.

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The diarylheptanoid 7-(4'-hydroxy-3'-methoxyphenyl)-1-phenylhept-4-en-3-one (HMP) is a naturally occurring phytochemical found in lesser galangal (Alpinia officinarum). In the present study, we have demonstrated the anti-inflammatory properties of this compound on mouse macrophage cell line (RAW

Anti-inflammatory activities and glycerophospholipids metabolism in KLA-stimulated RAW 264.7 macrophage cells by diarylheptanoids from the rhizomes of Alpinia officinarum.

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Alpinia officinarum is used for its anti-inflammatory activity historically in China. Diarylheptanoids isolated from A. officinarum play important biological roles in the prevention and treatment of inflammatory disorders. Seven diarylheptanoids (1-7) were isolated from A. officinarum. The cell

Novel diarylheptanoids as inhibitors of TNF-α production.

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Synthesis and anti-inflammatory activity of novel diarylheptanoids [5-hydroxy-1-phenyl-7-(pyridin-3-yl)-heptan-3-ones and 1-phenyl-7-(pyridin-3-yl)hept-4-en-3-ones] as inhibitors of tumor necrosis factor-α (TNF-α) production is described in the present article. The key reactions involve the

Anti-tumor promoting potential of naturally occurring diarylheptanoids structurally related to curcumin.

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In recent years, there have been considerable efforts to search for naturally occurring substances for intervention of carcinogenesis. Many components from medicinal or dietary plants have been identified to possess potential chemopreventive properties. For instance, curcumin, a yellow colouring

Diarylheptanoid hirsutenone enhances apoptotic effect of TRAIL on epithelial ovarian carcinoma cell lines via activation of death receptor and mitochondrial pathway.

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Tumor necrosis factor (TNF)-related apoptosis inducing ligand (TRAIL) induces apoptosis in various cancer cells. Diarylheptanoids such as hirsutenone and oregonin have been shown to have anti-inflammatory and anti-tumor effects. However, it is still unknown by which mechanism diarylheptanoids induce

Inhibition of mouse skin tumor promotion by anti-inflammatory diarylheptanoids derived from Alpinia oxyphylla Miquel (Zingiberaceae).

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Alpinia oxphylla Miquel, which belongs to the ginger family (Zingiberaceae), has been used in Oriental herbal medicine. Our recent studies have revealed that the methanolic extract of A. oxyphylla suppresses mouse skin tumor promotion and induces apoptosis in cultured human promyelocytic leukemia

Medicinal foodstuffs. XXIX. Potent protective effects of sesquiterpenes and curcumin from Zedoariae Rhizoma on liver injury induced by D-galactosamine/lipopolysaccharide or tumor necrosis factor-alpha.

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The 80% aqueous acetone extract of Zedoariae Rhizoma was found to show a protective effect against D-galactosamine (D-GalN)/lipopolysaccharide-induced acute liver injury in mice. To clarify the active compounds, the principal constituents were examined and 11 sesquiterpenes (furanodiene, curdione,

Diarylheptanoid Hirsutenone Attenuates Osteoclastogenesis by Suppressing IFNγ and NF-κB Signaling in Th1 and Preosteoclastic Cells.

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The aim of the present study was to examine the inhibitory roles and mechanisms of hirsutenone (HTN) in the regulation of osteoclastogenesis. Gene levels were compared to assure the effects of HTN on osteoclastogenesis in mouse splenocytes/CD4+ T cells, mouse macrophage-like cell line RAW264.7

Protective effect of Aframomum melegueta phenolics against CCl₄-induced rat hepatocytes damage; role of apoptosis and pro-inflammatory cytokines inhibition.

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Aframomum melegueta is a commonly used African spice. Through a hepatoprotective bioassay-guided isolation, the chloroform fraction of A.melegueta seeds yielded one new diarylheptanoid named 3-(S)-acetyl-1-(4'-hydroxy-3', 5'-di methoxyphenyl)-7-(3″,4″, 5″-trihydroxyphenyl)heptane (1), and two new

Oregonin inhibits inflammation and protects against barrier disruption in intestinal epithelial cells.

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OBJECTIVE Oregonin, a major diarylheptanoid derivative isolated from Alnus japonica, exerts anti-inflammatory effects; however, little is known about the effect of oregonin in intestinal inflammation. The current study investigated the potential of oregonin for clinical applications in the treatment

Platyphylloside Isolated From Betula platyphylla Inhibit Adipocyte Differentiation and Induce Lipolysis Via Regulating Adipokines Including PPARγ in 3T3-L1 Cells.

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BACKGROUND Obesity causes or aggravates many health problems, both independently and in association with several pathological disorders, including Type II diabetes, hypertension, atherosclerosis, and cancer. Therefore, we screened small compounds isolated from natural products for the development of

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