Puslapis 1 nuo 31 rezultatus
The effect of alpha-(3,5-di-tert-butyl-4-hydroxybenzylidene)-gamma-butyrolactone (KME-4), a new anti-inflammatory drug, on established adjuvant arthritis in rats was compared to that of indomethacin. When administered orally daily from days 14 to 27 starting on day 14 after the adjuvant (day 0),
alpha-(3,5-Di-t-butyl-4-hydroxybenzylidene)-gamma-butyrolactone (KME-4), an anti-inflammatory drug, possesses analgesic activity in rat models. In the acetic acid-induced writhing test, the oral ED50 values for KME-4, indomethacin, naproxen and ibuprofen were 5.2, 3.8, 7.0 and 18.6 mg kg-1,
KME-4,alpha-(3,5-di-t-butyl-4-hydroxybenzylidene)-gamma-buty rolactone was found to reduce the accumulation of leucocytes and exudate volume in the rat carrageenan pleurisy model. When administered orally 1 h before carrageenan, KME-4 (3-10 mg kg-1) induced a degree of inhibition of leucocyte
g-Butyrolactone is an intermediate in the synthesis of polymers used as film formers in hair sprays, blood plasma extenders, and clarifying agents in beer and wine. Toxicology and carcinogenesis studies were conducted by administering g-butyrolactone (greater than 97% pure) in corn oil by gavage to
The major metabolite of a novel non-steroidal anti-inflammatory drug, DL-4-(2',4'-difluorobiphenyl-4-yl)-2-oxo-2-methylbutanoic acid (flobufen, I), namely 4-(2',4'-difluorobiphenyl-4-yl)-2-methyl-gamma-butyrolactone (4-dihydroflobufen lactone, III), has four stereoisomers consisting of two racemic
The effect of alpha-(3,5-di-tert-butyl-4-hydroxybenzylidene)-gamma-butyrolactone (KME-4), a new anti-inflammatory compound, on arachidonate lipoxygenase and cyclooxygenase was investigated. KME-4 showed a dose-dependent inhibition of 5-lipoxygenase activity in both the cytosol (IC50: 0.85 microM)
The pharmacological effects of a new anti-inflammatory compound, alpha-(3,5-di-tert-butyl-4-hydroxybenzylidene)-gamma-butyrolactone (KME-4), and its inhibitory effects on arachidonate prostaglandin synthetase and 5-lipoxygenase activities were examined. KME-4 showed anti-inflammatory activity. It
In this paper, the analgesic, antioedematous, motor-impairing and antioxidant properties of four γ-butyrolactone derivatives (BM113, BM113A, BM138 and BM138A) are described. Pain was induced by thermal (hot-plate test), chemical (writhing test) or mechanical (Randall-Selitto model) stimulation. All
In this study we report, for the first time, the synthesis of the natural product calcaratarin D via a stereo- and regio-selective aldol condensation with (S)-β-hydroxy-γ-butyrolactone as key steps. A concise synthetic route (under 10 steps) to a series of structurally related normal-labdane
1. Andrographis paniculata (Burm. f) Nees, commonly known as 'king of bitters', is a herbaceous plant belonging to the Family Acanthaceae. It has been widely used for centuries in Asian countries like China, India, Thailand and Malaysia for the treatment of sore throat, flu and upper respiratory
METHODS
A 24-year-old man with known abuse of gamma-butyrolactone (GBL) was found with stupor and myoclonies on all extremities. He had been known to have ingested 2 ml of pure GBL every half an hour. Decubiti were detected on the knuckle of the right foot, on both elbows and at the
1β-hydroxy alantolactone, a sesquiterpene lactone mainly isolated from Inula genus plants, exhibits potent anti-inflammatory and anticancer activities. In this work, 1β-hydroxy alantolactone was isolated and five derivatives were prepared through different reactions at the C1-OH and C13-methylene
1. Tripterygium wilfordii (TW) contains bioactive compounds that possess immunosuppressive properties. These compounds are considered to be potential drugs in the treatment of acute graft rejections. However, their structure-activity relationships remain unknown. 2. The aim of the present study was
The transcription factor nuclear factor-kappaB (NF-kappaB) is a regulator related to cellular inflammation, immune responses and carcinogenesis. Therefore, components of the NF-kappaB-activating singnaling pathways are frequent targets for the anti-inflammatory and anticancer agents. In this study,
Taiwanin A (α,β-bis(piperonylidene)-γ-butyrolactone) is extracted from Taiwania cryptomerioides. Taiwanin A is extracted from tree bark and exhibits antitumor activity in breast, liver, and lung cancer cell lines. The objective of this study was to demonstrate the cytotoxicity of Taiwanin A against