tropolone/inflamație

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BIOCHEMICAL PROPERTIES OF ANTI-INFLAMMATORY DRUGS. IV. UNCOUPLING OF OXIDATIVE PHOSPHORYLATION BY RESORCINOLS, TROPOLONES AND DIONES.

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111Indium-tropolone labeled human PMNs: a rapid method of preparation and evaluation of labeling parameters.

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Pure polymorphonuclear leukocytes (PMNs) have been isolated from a small amount of human blood by a single-step density gradient centrifugation method using a commercially available Ficoll-Hypaque mixture of density 1.114. The cells were labelled with [111In]tropolone in both buffer and plasma. Cell

Tropolone alkaloids from Colchicum kurdicum (Bornm.) Stef. (Colchicaceae) as the potent novel antileishmanial compounds; purification, structure elucidation, antileishmanial activities and molecular docking studies.

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Natural compounds played an important role for prevention and treatment of the disease as well as are the important compounds for the design of the new bioactive compounds. In this study, eight tropolone alkaloids were isolated from Colchicum kurdicum including colchicoside, 2-demethyl colchicine,

The prophenoloxidase system is activated during the tunic inflammatory reaction of Ciona intestinalis.

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Phenoloxidase (PO) activity was examined in the tunic tissue of Ciona intestinalis following lipopolysaccharide (LPS) intratunic injection. Tunic homogenate supernatant (THS), assayed with the Dopa-MBTH reaction, displayed Ca(2+)-independent PO activity that was raised by LPS and further enhanced by

Effect of tropolone, azulene and azulenequinone derivatives on prostaglandin E2 production by activated macrophage-like cells.

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We have previously reported that tropolone (T-3), 2,4-dibromo-7-methoxytropone (T-21), diethyl 2-chloroazulene-1,3-dicarboxylate (A-9), 1,3-difluoroazulene (A-11), 3-morpholino-1,5-azulenequinone (AQ-8) and 3,7-dibromo-1,5-azulenequinone (AQ-13) inhibited the nitric oxide (NO) production of

Studies on the antiproliferative effects of tropolone derivatives in Jurkat T-lymphocyte cells.

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Thujaplicins are tropolone-derived natural products with antiproliferative properties. We recently reported that certain tropolones potently and selectively target histone deacetylases (HDAC) and inhibit the growth of hematological cell lines. Here, we investigated the mechanisms by which these

Hinokitiol, a natural tropolone derivative, offers neuroprotection from thromboembolic stroke in vivo.

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Hinokitiol ( β -thujaplicin), a tropolone-related compound found in the heartwood cupressaceous plants, is widely used in hair tonics, tooth pastes, cosmetics, and food as an antimicrobial agent. Increasing evidence has confirmed that hinokitiol exhibits anticancer activity in a variety of cancers

SIRT1, a Class III Histone Deacetylase, Regulates LPS-Induced Inflammation in Human Keratinocytes and Mediates the Anti-Inflammatory Effects of Hinokitiol.

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Skin inflammation is a response of the immune system to infection and injury. In this study, we report that hinokitiol, a tropolone-related natural compound that exhibits antioxidant, anti-inflammatory, and anticancer properties in various cell types, can modulate the inflammatory responses of

Hormetic and anti-radiation effects of tropolone-related compounds.

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We have previously investigated a total of 173 azulene-, tropolone- and azulenequinone-related compounds for their tumor-specificity and anti-inflammatory activity. In this study, we selected six compounds that showed tumor-specific cytotoxicity (referred to as group I compounds) and five compounds

Hinokitiol, a natural tropolone derivative, inhibits TNF-alpha production in LPS-activated macrophages via suppression of NF-kappaB.

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In this study, we examined the modulatory effect of hinokitiol (HK) on the production of tumor necrosis factor (TNF)-alpha, a critical factor involved in skin inflammation and hair follicle apoptosis. HK effectively suppressed TNF-alpha production in lipopolysaccharide (LPS)-activated,

Hormetic and UV-protective effects of azulene-related compounds.

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BACKGROUND We have previously reported a possible anti-inflammatory activity of azulene-, tropolone- and azulenequinone-related compounds. To further pursue the newly discovered biological activity of these compounds, five compounds that inhibited nitric oxide production by activated macrophages

99Tcm-HMPAO labelled leucocytes: comparison with 111In-tropolonate labelled granulocytes.

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The lipophilic complex, 99Tcm-hexamethylpropyleneamine oxime (HMPAO) is an efficient leucocyte label, and labels granulocytes with more stability than mononuclear leucocytes. The recovery of 99Tcm-HMPAO granulocytes, expressed as the percentage of injected granulocyte-associated activity circulating

Synthesis of new azulene derivatives and study of their effect on lipid peroxidation and lipoxygenase activity.

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The relationship between free radicals and acute or chronic inflammation has been well established. We have previously reported the significant antioxidant activity of the natural azulene derivatives chamazulene and guaiazulene. Furthermore, some synthetic azulene analogues have been found to

Effect of Thoracotomy and Cardiopulmonary Bypass on Activated Platelet and Neutrophil Dynamics and Platelet Emboli in a Pig Model.

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The effects of thoracotomy and components of extracorporeal circuits on dynamics of platelets and neutrophils were quantified with autologous In-111-labeled platelets (INPLT) and neutrophils (INN) during cardiopulmonary bypass (CPB) operations in Yorkshire pigs. Cardiopulmonary bypass was carried

Serial in vivo imaging of the porcine heart after percutaneous, intramyocardially injected 111In-labeled human mesenchymal stromal cells.

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This pilot trial aimed to investigate the utilization of (111)In-labeling of mesenchymal stromal cells (MSC) for in vivo tracking after intramyocardial transplantation in a xenotransplantation model with gender mismatched cells. Human male MSC were expanded ex vivo and labeled with

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