Background: Acne vulgaris is a chronic inflammatory disease of pilosebaceous unit, which has variable course, with acute or insidious onset, relapses and recurrences. It one the commonest patients attending dermatology clinic. Tetracyclines are most common oral antibiotic prescribed for acne vulgaris. Aims: Our study aims to compare efficacy topical 2.5% Benzoyl peroxide gel (BPO) Doxycycline v...

Acne vulgaris (acne) is probably the most common dermatological complaint in the U.S. Acne has a range of presentations and manifestations, thus apparently comprising many disease states. Although acne is not an infectious disease, specimens of bacteria such as Propionibacterium acnes, Propionibacterium granulosum, and Staphylococcus epidermidis can be obtained for culture from the eruptions of...

The dispersion copolymerization of methyl methacrylate (MMA) with macromonomeric azoinitiator, MIM-400, as a macrocrosslinker initiated by the benzoyl peroxide (BPO)/N,N 0dimethylaniline (DMA) coupled in water/ethanol (4/1, v/v) at 208C was carried out to yield PEG-b-PMMA networks with labile azo linkages in the main chain. Gel fraction, swelling ratios (qv) and the average molecular weights be...

Synthesis of fullerene oxides[C70(O)n] (n=1~3 or n=1) by fullerene [C70] and several oxidants such as 3-chloroperoxy benzoic acid, chromium(VI) oxide, benzoyl peroxide, trichloroisocyanuric acid take place under microwave irradiation. The MALDI-TOF MS, UV-visible spectra and HPLC analysis confirmed that the products of fullerene oxidation are [C70(O)n] (n=1~3 or n=1). Keyword : A.Fullerene oxid...

Acne is a chronic inflammatory disease of the pilosebaceous unit that affects almost all teenagers. Different treatments offer different modes of action, but aim to target acne pathology. Topical therapies, such as benzoyl peroxide, retinoids, antibiotics with alcohol-based preparations, and salicylic acid, can cause skin irritation resulting in a lack of patient adherence. Some physicians reco...

Mesh size distributions (MSDs) of swollen cross-linked styrene copolymer networks have been measured by thermoporometry using CCl(4) as a probe liquid. All numerical relationships required for the calculation of the MSD were established for both the liquid-to-solid and the solid-to-solid thermal transitions of CCl(4) and successfully validated on test samples. It was found that the polymer netw...

The aim of this study was to develop a simple and reliable high-performance chromatographic (HPLC) method for simultaneous analysis of adapalene and benzoyl peroxide in pharmaceutical formulation by response surface methodology (RSM). An optimized mobile phase composed of acetonitrile, tetrahydrofuran and water containing 0.1% acetic acid at a ratio of 25:50:25 by volume was successfully predic...

Let J be a coherent subsheaf of a locally free sheaf O(E 0) and suppose that F = O(E 0)/J has pure codimension. Starting with a residue current R obtained from a locally free resolution of F we construct a vector-valued Coleff-Herrera current µ with support on the variety associated to F such that φ is in J if and only if µφ = 0. Such a current µ can also be derived algebraically from a fundame...

BACKGROUND Limited data are available on acne treatment patterns, expectations, and satisfaction in the adult female subpopulation, particularly among different racial and ethnic groups. OBJECTIVE Describe acne treatment patterns and expectations in adult females of different racial/ethnic groups and analyze and explore their potential effects on medication compliance and treatment satisfacti...

Several investigators have shown that certain carcinogenic chemicals and polycydic hydrocar bons inhibit the autoxidation of benzaldehyde and lipoidal materials (5—7).This effect on benzalde hyde was confirmed. Further experiments carried out with carotene in solvents containing carbon tetrachioride or benzoyl peroxide showed that, un der the influence of light, many carcinogens and some othe...