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pentane/inflammation
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Lipid peroxidation during chronic inflammation induced in rats by Freund's adjuvant: effect of vitamin E as measured by expired pentane.
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Expired pentane, a product of omega 6-unsaturated fatty acid hydroperoxide decomposition, and foot volume were measured following injection of Freund's adjuvant into the hind feet of vitamin E-deficient rats injected 1 wk previously with either 0 or 100 mg of dl-alpha-tocopherol acetate/100 g body
Quantitative determination of pentane in exhaled air correlates with colonic inflammation in the rat colitis model.
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Oxygen radicals play a key role in inflammation and inflammatory tissue damage. Quantitative determination of pentane, a hydrocarbon generated by membrane lipid peroxidation initiated by oxygen radicals, in expired air has been used as a noninvasive determinant or index of inflammation in various
Determination of inflammatory bowel disease activity by breath pentane analysis.
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OBJECTIVE
Quantitative determination of breath pentane, an alkane generated by peroxidation of cellular fatty acids, has been used as a noninvasive determinant of inflammation. Herein we report the first examination of the relationship between breath pentane and intestinal inflammation in
Oral diet does not alter pulmonary pentane or ethane excretion in healthy subjects.
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Ethane and pentane are alkanes that are excreted through the lungs to a small degree in healthy subjects. These gasses are produced from the peroxidation of unsaturated fats which are found both in body tissues and in foods. These gasses are excreted in larger amounts by patients with increased
Volatile organic compounds in exhaled breath are independent of systemic inflammatory syndrome caused by intravenous lipopolysaccharide infusion in humans: results from an experiment in healthy volunteers.
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Systemic inflammatory response syndrome (SIRS) is observed during critical illness in most patients. It is defined by a clinical definition. The composition of volatile organic compounds (VOCs) in exhaled breath may change during SIRS and may thus serve as a diagnostic tool. We investigated whether
Ethane and n-pentane in exhaled breath are biomarkers of exposure not effect.
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The relationship of exhaled ethane and n-pentane to exhaled NO, carbonylated proteins, and indoor/outdoor atmospheric pollutants were examined in order to evaluate ethane and n-pentane as potential markers of airway inflammation and/or oxidative stress. Exhaled NO and carbonylated proteins were
Breath pentane excretion as a marker of disease activity in rheumatoid arthritis.
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Activated inflammatory cells are capable of stimulating lipid peroxidation. In 27 patients with rheumatoid arthritis, we measured the pulmonary excretion of pentane, a product released during lipid peroxidation. We found highly significant correlations between pentane excretion and both joint
Inhibition of Spinal Ca(2+)-Permeable AMPA Receptors with Dicationic Compounds Alleviates Persistent Inflammatory Pain without Adverse Effects.
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Upregulation of Ca(2+)-permeable AMPA receptors (CP-AMPARs) in the dorsal horn (DH) neurons of the spinal cord has been causally linked to the maintenance of persistent inflammatory pain. Therefore, inhibition of CP-AMPARs could potentially alleviate an, otherwise, poorly treatable chronic pain.
Synthesis of new pyrimidine derivatives with evaluation of their anti-inflammatory and analgesic activities.
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5-Formyl-6-aminopyrimidine-2,4-(1H, 3H)-dione (2) has been previously prepared fromcompound 1. Cyclocondensation reaction of compound 2 with cyanoacetamide gave substituted pyridopyrimidine 3. Also, compound 2 was condensed with p-amino acetophenone and hydrazine derivatives to give
Kojyl thioether derivatives having both tyrosinase inhibitory and anti-inflammatory properties.
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This study was conducted to examine the tyrosinase inhibitory and anti-inflammatory activities of kojic acid derivatives. A series of kojic acid derivatives containing thioether, sulfoxide, and sulfone linkages were synthesized. In the tyrosinase assay, kojyl thioether derivatives containing
Orazipone inhibits activation of inflammatory transcription factors nuclear factor-kappa B and signal transducer and activator of transcription 1 and decreases inducible nitric-oxide synthase expression and nitric oxide production in response to inflammatory stimuli.
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Orazipone [OR-1384; 3-[4-(methylsulfonyl)benzylidene]pentane-2,4-dione] is a novel sulfhydryl-modulating compound that has anti-inflammatory properties in experimental models of asthma and inflammatory bowel disease. In inflammation, inducible nitricoxide synthase (iNOS) generates NO, which
[Use of chromato-mass-spectrometry for the differential diagnosis of suppurative and nonsuppurative inflammations in the maxillofacial area in children].
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Ten children with inflammatory processes in the maxillofacial soft tissues and 10 healthy children were examined using chromato-mass-spectrometry of the chemical composition of oral cavity air. Air samples were collected by an adsorbent sample collector by individual sucking and analyzed on a
Nitric oxide in exhaled air is a new marker of airway inflammation.
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The measurement of exhaled NO has excited considerable interest, as it may provide a simple noninvasive means of measuring airways inflammation. There is now persuasive evidence that levels of NO are increased in association with airway inflammation and are decreased with anti-inflammatory
Novel pyrazole derivatives as potential promising anti-inflammatory antimicrobial agents.
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Four series of 1H-pyrazole derivatives have been synthesized. The first series was synthesized starting by condensing the hydrazine derivatives 1a-d with 4-(1-ethoxycarbonyl-2-oxopropyl)azobenzoic acid 2a in ethanol or glacial acetic acid to generate the corresponding pyrazoline derivatives 3a-d.
Airway inflammation in patients affected by obstructive sleep apnea.
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Obstructive sleep apnea (OSA) is characterised by repetitive episodes of upper airway occlusion during sleep. OSA has been shown to be associated with a variable degree of nasal inflammation, uvula mucosal congestion and airway hyperreactivity. The upper airway inflammation, whose clinical
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