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Topical administration of chemicals such as methyl nicotinate that induce erythema have been employed to measure the effectiveness of formulations containing anti-inflammatory agents. Prior studies have utilized a single concentration of methyl nicotinate, between 36.5 and 100 mM, for all test
The aim of this study was to compare the activities of the two main classes of topical anti-inflammatory drugs in methyl-nicotinate-induced skin inflammation, using a new methodology based on laser-Doppler velocimetry. Six topical non-steroidal anti-inflammatory drugs (NSAIDs) (bufexamac,
A method has been developed which simultaneously compares the inhibition of an inflammation induced by a methyl nicotinate assay with the concentration of drug in the human epidermis determined in vitro following topical application of two 10% ibuprofen formulations. The bioavailability of drug from
OBJECTIVE
In this study, we investigated the bioavailability of iontophoretically delivered diclofenac with the methylnicotinate (MN) test. The inhibition of an erythema provoked by MN is proportional to the bioavailability of diclofenac in the skin. It was our aim to use this procedure in the
OBJECTIVE
In view of the relationship between microvascular pathology and organ complications in diabetes mellitus, the aim of the present study was to examine the microvascular response of upper arm skin to non-immunological contact irritants in 17 insulin-dependent diabetic patients and 11
The effects of 3 topical applications of non-steroidal anti-inflammatory drugs (NSAIDs), diclofenac 1%, naproxene 10% and salicylic acid 5% in gel vehicles, on immediate contact reactions to 500 mM benzoic acid, 500 mM cinnamic aldehyde, 50 mM methyl nicotinate, all in pet., and 14.1 M (100%)
BACKGROUND
Wu-Zhu-Yu, is an extract prepared from the small berry fruit of Evodia rutaecarpa and is reported to have anti-inflammatory and anti-nociceptic activity. Methyl nicotinate (MN) is known to induce the release of PGD(2) resulting in localized erythema within 30 min after topical application
A new non-invasive technique for assessing the efficacy of topical non-steroidal anti-inflammatory drugs (NSAID) in man is proposed. The NSAID are initially applied to the skin under occlusion before inflammation is induced by a methyl nicotinate solution. The inflammatory response is quantified in
Continuous laser Doppler measurements of methyl nicotinate-induced skin inflammation have been used to evaluate the activities of three oral non-steroidal anti-inflammatory drugs, indomethacin 50 mg (Indocid), tiaprofenic acid 100 mg (Surgam) and sodium acetylsalicylate 1 g (Catalgine). They were
BACKGROUND
The aim of this work was to evaluate the suitability of ethosomes as carriers for the topical application of triptolide in a rat model of erythema.
OBJECTIVE
We determined the optimal conditions for preparing ethosomes, and we measured their vesicle size by a laser particle-size analyzer
Background: Unprotected chronic exposure to ultraviolet (UV) radiation generates many harmful effects to human skin and sunscreens are essential to health, however, traditional products do not provide enough protection against cutaneous
Cutaneous penetration of methyl nicotinate has been investigated in 20 women divided into reactors and non-reactors on the basis of response to 10% aqueous solution of lactic acid. The vasodilation induced was measured using a laser Doppler perfusion imager (LDPI) every 5 min for 1 h after
A new nitro-oxybutylester of flurbiprofen (NO-FP) is a promising anti-inflammatory drug in the treatment of dermatological disorders, and the feasibility of its cutaneous administration was evaluated. Four different semi-solid formulations were evaluated in order to assess the influence of the
Extracts of Tanacetum parthenium (L.) Sch. Bip., a plant known under the common name "Feverfew", contains the sesquiterpene lactone parthenolide, a potent skin sensitizer. To eliminate the risk of skin sensitization from Feverfew, we developed a parthenolide-depleted extract of Feverfew
Six new 1-alkylazacycloalkan-2-one esters of ketoprofen (1-6) were synthesized and evaluated as potential dermal prodrugs of ketoprofen. Their lipophilicity by both experimental lipophilicity indices (log k') and calculated ClogP was also determined. In vitro experiments were carried out to evaluate