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Puslapis 1 nuo 50 rezultatus
New biological properties of pyrroloquinoline quinone and its related compounds: inhibition of chemiluminescence, lipid peroxidation and rat paw edema.
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Pyrroloquinoline quinone (PQQ) inhibited the chemiluminescence (CL) from mouse peritoneal cells initiated by zymosan, carrageenin and N-formyl-methionyl-leucyl-phenylalanine and CL generated by the xanthine-xanthine oxidase reaction and the lipid peroxidation in the rat brain homogenate. The
[The effect of pyrocatechol and quinone on the capillary activity of secondary phosphoric acid ester and the egg white edema of the rat].
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Synthesis and activity on free radical processes and inflammation of 9,10-dihydro-5,8-dimethoxy-triptycene-quinones.
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Three triptycene quinones bearing methoxy groups were prepared following a Diels-Alder methodology and were evaluated for antioxidant and anti-inflammatory activity bearing in mind their structural features that could justify intervention with free radical processes. Improved synthetic pathways were
The effect of tocopherol and dimethyl sulfoxide on focal edema and lipid peroxidation induced by isocortical injection of ferrous chloride.
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Addition of iron salts to suspensions of subcellular organelles or polyunsaturated fatty acids results in the formation of oxidative free radicals with subsequent initiation of lipid peroxidation. Pretreatment of rats with anti-oxidants prevents peroxidation following isocortical ferrous chloride
Pyrroloquinoline Quinone Inhibits Oxidative Stress in Rats with Diabetic Nephropathy
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BACKGROUND Diabetic nephropathy (DN) is one of the chronic microvascular complications of diabetes. This study focused on the protective effects of pyrroloquinoline quinone (PQQ) on oxidative stress (OS) in DN. MATERIAL AND METHODS Thirty Sprague Dawley rats were randomly selected for this study; 10
Protective Effect of Pyrroloquinoline Quinone (PQQ) in Rat Model of Intracerebral Hemorrhage.
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Pyrroloquinoline quinone (PQQ) has invoked considerable interest because of its presence in foods, antioxidant properties, cofactor of dehydrogenase, and amine oxidase. Protective roles of PQQ in central nervous system diseases, such as experimental stroke and spinal cord injury models have been
In vitro polyphenolics erythrocyte model and in vivo chicken embryo model revealed gallic acid to be a potential hemorrhage inducer: physicochemical action mechanisms.
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The in vivo chicken embryo model (CEM) demonstrated that gallic acid (GA) induced dysvascularization and hypoxia. Inflammatory edema, Zenker's necrosis, hemolysis, and liposis of cervical muscles were the common symptoms. Levels of the gene hif-1α, HIF-1α, TNF-α, IL-6, and NFκB in cervical muscles
β-carotene provides neuro protection after experimental traumatic brain injury via the Nrf2-ARE pathway.
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We investigate whether β-carotene, a known natural antioxidant, can reduce oxidative stress induced by traumatic brain injury. In addition, we investigated the underlying mechanism of traumatic brain injury focusing on the NF-E2-related factor (Nrf2) pathway. A controlled cortical impact model was
Soluble P-selectin promotes retinal ganglion cell survival through activation of Nrf2 signaling after ischemia injury.
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Retinal ischemic injuries play an important role in the pathogenesis of several eye disorders. Inflammation and oxidative stress are key players in ischemic injuries. Following retinal ischemia, vascular endothelial cells and leukocytes express several inflammatory adhesion receptors, such as
ReN 1869, a novel tricyclic antihistamine, is active against neurogenic pain and inflammation.
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The tricyclic compound (R)-1-(3-(10,11-dihydro-5H-dibenzo[a,d]cyclohepten-5-ylidene)-1-propyl)-3-piperidine carboxylic acid (ReN 1869) is a novel, selective histamine H(1) receptor antagonist. It is orally available, well tolerated, easily enters the central nervous system (CNS) but no adverse
Influence of the dose levels of cocarcinogen ferric oxide on the metabolism of benzo[a]pyrene by pulmonary alveolar macrophages in suspension culture.
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The concurrent administration of a cocarcinogenic carrier particle such as ferric oxide (Fe2O3) and the polycyclic aromatic hydrocarbon lung carcinogen benzo[a]pyrene (BaP) results in a decreased latency and an increased incidence in the production of lung tumors in hamsters compared to the
Antiinflammatory and analgesic activity of an inhibitor of neuropeptide amidation.
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4-Phenyl-3-butenoic acid (PBA) has been shown in vitro to be a turnover-dependent inactivator of peptidylglycine alpha-monooxygenase (PAM), the rate-limiting enzyme involved in the formation of amidated neuropeptides from their glycine-extended precursors. In the studies reported herein, we have
P2X7 receptor inhibition by 2-amino-3-aryl-1,4-naphthoquinones
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Extracellular ATP activates purinergic receptors such as P2X7, cationic channels for Ca2+, K+, and Na+. There is robust evidence of the involvement of these receptors in the immune response, so P2X7 receptors (P2X7R) are considered a potential therapeutic target for
Mechanism for the protective effect of diallyl disulfide against cyclophosphamide acute urotoxicity in rats.
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This study investigated the protective effects of diallyl disulfide (DADS) against cyclophosphamide (CP)-induced acute urotoxicity in rats. CP caused severe hemorrhagic cystitis as shown by significant increases in bladder weight, edema, and hemorrhage as well as increased urinary bladder epithelial
Pharmacological evaluation of 1-(carboxymethyl)-3,5-diphenyl-2-methylbenzene, a novel arylacetic acid with potential anti-inflammatory properties.
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OBJECTIVE
1-(Carboxymethyl)-3,5-diphenyl-2-methylbenzene (CDB), a novel arylacetic acid, was evaluated in vivo for its ability to inhibit acute and chronic inflammation as well as acute pain.
METHODS
The effects of CDB were evaluated using the following assays: 1) acute inflammation induced by the
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