PubMed Health⌕ Search

SEARCH · PubMed Health

Results for “UNDECYLENIC ACID”

Explore indexed PubMed citations for clinical trials, systematic reviews and public health research. Read source abstracts and follow each citation to its original PubMed record.

Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.

At least 19 recordsLinked to original sources
PubMed2005

Simple fluorimetric liquid chromatographic method for the analysis of undecylenic acid and zinc undecylenate in pharmaceutical preparations.

A simple and selective liquid chromatographic method is described for the analysis of undecylenic acid (UA) and zinc undecylenate (ZnUA) in pharmaceutical preparations. The method is based on the derivatization of the analytes extracted from various samples with 2-(2-naphthoxy)ethyl 2-(piperidino)ethanesulfonate. The resulting derivative was analyzed by liquid chromatography with fluorimetric detection. The quantitation of the method is in the range of 3.0-50.0 microM UA with a detection limit of about 0.3 microM (S/N = 3 with 10 microl injection). We found that acetonitrile is a selective solvent for differentially dissolving UA from coexisted ZnUA in compound formulation. This results in the specific analysis of UA in the presence of ZnUA and simply analyzing the coexisted ZnUA by the value of total UA (UA+ZnUA) minus that of UA. Application of the method to the analysis of undecylenic acid and zinc undecylenate in ointment, powder and solution preparations proved feasible.

Chromatography, High Pressure Liquid↗
PubMed1979

Comparison of in vitro activity of undecylenic acid and tolnaftate against athlete's foot fungi.

Undecylenic acid and tolnaftate were tested in an in vitro test system to evaluate their relative "killing time" efficacy against Trichophyton mentagrophytes, Trichophyton rubrum, and Epidermophyton floccosum. Commercial products containing these active agents were tested similarly. The pure active agents were equivalent in activity. The commercial product containing undecylenic acid appeared to be more effective against the test organisms than did the product containing tolnaftate.

Epidermophyton↗
PubMedDate not supplied

The treatment of dermatophytoses of the glabrous skin: a comparison of undecylenic acid and its salt versus tolnaftate.

In a double-blind study, the efficacy of 1% tolnaftate cream, 3% undecylenic acid and its zinc salt, and a placebo cream were tested in dermatophytosis of the glaborous skin and groin. Ninety-seven subjects completed the study: 33 received tolnaftate, 23 of these subjects were cured clinically and mycologically. Thirty-two subjects received 3% undecylenic acid and 20% zinc undecylenate as a cream. Of these, 21 were cured clinically and mycologically. Only three of the 32 subjects receiving placebo were cured clinically and mycologically. Both tolnaftate and undecylenic acid and its zinc salt are effective in this condition.

Clinical Trials as Topic↗
PubMed1951

Undecylenic acid in the treatment of psoriasis and neurodermatitis.

Undecylenic acid in a dosage tolerated by most patients is of doubtful value in the treatment of psoriasis and neurodermatitis.Thirty-one patients were given the drug. Exudative dermatitis developed in one case, generalized pruritus in another. One patient may have had a cardiac accident attributable to the drug.

Dermatitis↗
PubMed2003

Enzymatic synthesis of hydrophilic undecylenic acid sugar esters and their biodegradability.

To enhance water solubility of 10-undecylenic acid, which has anti-fungus, anti-bacterial and anti-virus activity, D-glucose, trehalose and sucrose were regioselectively esterified with vinyl 10-undecylenic acid ester in dimethyl formamide by a commercial protease, Bioprase conc., from Bacillus subtilis. 6-O-(10-Undecylenoyl) D-glucose, 6-O-(10-undecylenoyl) trehalose and 1'-O-(10-undecylenoyl) sucrose were obtained. The influence of structural variation by changing the sugar moiety was analyzed the surface tension and biodegradability.

Bacillus subtilis↗
PubMedDate not supplied

Topical undecylenic acid in tinea pedis: a new look.

One hundred and four patients with mycologically confirmed tinea pedis took part in a controlled clinical trial to determine the efficacy of undecylenic acid powder preparations in the treatment of their fungal infections. Clinical and mycological cures were obtained in 53% of those subjects treated with undecylenic acid powders as compared with 7% of those treated with the talc vehicle or left untreated. Undecylenic acid in a powder vehicle appears to be a safe and effective agent in the treatment of tinea pedis.

Administration, Topical↗
PubMed1997

Topical undecylenic acid for herpes simplex labialis: a multicenter, placebo-controlled trial.

A multicenter, patient-initiated, double-blind, placebo-controlled trial of 15% undecylenic acid cream was conducted with 573 patients with recurrent herpes labialis. Treatment was applied 5 or 6 times daily until crusting and then thrice daily until healing. Patients were assessed daily until 48 h after crusting and then every other day until healing. Undecylenic acid significantly reduced the incidence and duration of viral shedding and the duration and severity of itching but did not increase abortive episodes or reduce times to healing, crusting, or progression of lesion size. When treatment was initiated during the prodrome, the time to crusting was reduced (P = .02) and the area under the symptom-time curve for pain and tenderness was reduced, approaching statistical significance (P = .06). Active treatment was well tolerated but caused dysgeusia and local irritation. Undecylenic acid 15% cream reduces viral shedding in recurrent herpes labialis, but clinical benefits are minimal and largely restricted to patients initiating therapy during the prodrome.

Administration, Topical↗
PubMedDate not supplied

Efficacy of undecylenic acid-zinc undecylenate powder in culture positive tinea pedis.

One hundred fifty-one patients with tinea pedis participated in a double-blind study to assess the efficacy and safety of a powder containing undecylenic acid 2% and zinc undecylenate 20% versus a placebo powder. Patients were assigned to apply twice-daily applications of either active powder or placebo for a period of 4 weeks. Trichophyton rubrum or Trichophyton mentagrophytes were isolated from pretreatment cultures of 85 patients. Of these, 88% treated with active powder had negative cultures after 4 weeks compared with 17% of those treated with placebo powder (p less than 0.001). Fungus was identified in potassium hydroxide (KOH) treated skin scrapings of all 151 patients before treatment. Of those treated with active powder, 80% were KOH negative after 4 weeks compared with 49% of those treated with placebow powder (p = 0.001). Erythema and scaling were significantly improved by therapy with active powder, as were subjective evaluations of itching and burning. There were no side-effects or adverse reactions to undecylenic acid and its zinc salt.

Clinical Trials as Topic↗
PubMed2006

Enzymatic synthesis of arbutin undecylenic acid ester and its inhibitory effect on mushroom tyrosinase.

A novel tyrosinase inhibitor, an arbutin derivative having undecylenic acid at the 6-position of its glucose moiety, was enzymatically synthesized. Its inhibitory activity was studied in vitro by using catechol and phenol as substrates. The IC(50) value of the arbutin ester on tyrosinase using catechol (4 x 10(-4) M) was 1% of that when arbutin (4 x 10(-2) M) was used. Using phenol, IC(50) of the arbutin ester (3 x 10(-4) M) as substrate was 10% of that of arbutin (3 x 10(-3) M). These results suggest that the arbutin ester inhibits the latter part of the tyrosinase reaction, which consists of hydroxylation and oxidation.

Agaricales↗
PubMed2006

UV photodissociation spectroscopy of oxidized undecylenic acid films.

Oxidation of thin multilayered films of undecylenic (10-undecenoic) acid by gaseous ozone was investigated using a combination of spectroscopic and mass spectrometric techniques. The UV absorption spectrum of the oxidized undecylenic acid film is significantly red-shifted compared to that of the initial film. Photolysis of the oxidized film in the tropospheric actinic region (lambda > 295 nm) readily produces formaldehyde and formic acid as gas-phase products. Photodissociation action spectra of the oxidized film suggest that organic peroxides are responsible for the observed photochemical activity. The presence of peroxides is confirmed by mass-spectrometric analysis of the oxidized sample and an iodometric test. Significant polymerization resulting from secondary reactions of Criegee radicals during ozonolysis of the film is observed. The data strongly imply the importance of photochemistry in aging of atmospheric organic aerosol particles.

Journal Article↗
PubMed1980

Comparison between undecylenic acid and tolnaftate in the treatment of tinea pedis.

A double-blind parallel study comparing tolnaftate cream with undecylenic acid ointment and a placebo ointment in the treatment of symptomatic tinea pedis was conducted on the warm, humid Texas Gulf Coast. In one hundred and three patients studied, both the clinical and mycological effects of the two antifungal agents were indistinguishable. Both were significantly more effective than the placebo.

Clinical Trials as Topic↗