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Acne Lesions (acne + lesion)
Selected AbstractsTreatment of Inflammatory Facial Acne Vulgaris with Intense Pulsed Light and Short Contact of Topical 5-Aminolevulinic Acid: A Pilot StudyDERMATOLOGIC SURGERY, Issue 8 2006JINDA ROJANAMATIN MD BACKGROUND Photodynamic therapy (PDT) with topical 5-aminolevulinic acid (ALA) and red light (550,700 nm) has been introduced for effective treatment of facial acne. Untoward side effects are common, however. OBJECTIVE To evaluate the efficacy and safety of the short contact of topical ALA and intense pulsed light (IPL) in treatment of inflammatory facial acne. METHODS Fourteen patients with inflammatory facial acne were treated with IPL on the left side and combination of IPL and topical ALA on the right side at 3- to 4-week intervals for three sessions. Clinical photographs and lesion counts were obtained for evaluation. RESULTS All patients revealed a reduction in number of acne lesions on both sides. On the ALA-pretreated side, lesion counts decreased 87.7% at 12 weeks after the last treatment (p<.01). Meanwhile, lesion counts on the nonpretreated side decreased 66.8% (p<.01). In addition, a number of lesion counts on the ALA-pretreated side decreased. Mild edema and minimal crust developed on the combined-treatment side. CONCLUSION Short contact of topical ALA and IPL or IPL alone showed some beneficial effect in treatment of inflammatory facial acne; however, degree of improvement was better and remained longer with the combined regimen. Side effects were mild and reversible. [source] A rapid method to clinically assess the effect of an anti-acne formulationINTERNATIONAL JOURNAL OF COSMETIC SCIENCE, Issue 1 2010N. Muizzuddin J. Cosmet. Sci., 60, 25,29 (January/February 2009) Synopsis Historically, clinical evaluation of acne treatment has been based on direct visual assessment and the counting of lesions over a period of several weeks of treatment. However, with advancing technology there has been ever-increasing speed in the effectiveness of these treatments. To successfully assess these faster treatments, acne pathology needs to be evaluated in a shorter time frame. The object of these studies was to develop techniques to evaluate individual acne lesions in a shorter time frame and to assess speedier treatment technologies. Ten healthy volunteers with acne lesions on their upper backs were recruited for the study. Two inflamed acne lesions were selected for each treatment, along with lesions to be left untreated, on each volunteer. Each lesion was marked, photographed, and visually graded. A skin surface microscope (Scopeman) was used to visualize size and to grade the lesions by two experts every day for five days. The sites were treated once a day for the course of the study. There was a remarkable reduction in the size and erythema of acne lesions after treatment with the acne formulation as compared to the untreated and vehicle-treated lesions. Individual lesions, both treated and untreated, appeared resolved in 14 days. This resolution can be noticeably accelerated by topical treatments. We have developed a simple and faster clinical method to evaluate the effects of topical anti-acne technology. [source] Blue and red light combination LED phototherapy for acne vulgaris in patients with skin phototype IVLASERS IN SURGERY AND MEDICINE, Issue 2 2007Seung Yoon Lee MD Abstract Background and Objectives Blue light is effective for acne treatment, inducing photodynamic destruction of Propionibacterium acnes (P. acnes). This study was designed to investigate the efficacy of combined blue and red light-emitting diode (LED) phototherapy for acne vulgaris. Materials and Methods Twenty-four patients with mild to moderately severe facial acne were treated with quasimonochromatic LED devices, alternating blue (415 nm) and red (633 nm) light. The treatment was performed twice a week for 4 weeks. Objective assays of the skin condition were carried out before and after treatment at each treatment session. Clinical assessments were conducted before treatment, after the 2nd, 4th, and 6th treatment sessions and at 2, 4, and 8 weeks after the final treatment by grading and lesion counting. Results The final mean percentage improvements in non-inflammatory and inflammatory lesions were 34.28% and 77.93%, respectively. Instrumental measurements indicated that the melanin levels significantly decreased after treatment. Brightened skin tone and improved skin texture were spontaneously reported by 14 patients. Conclusion Blue and red light combination LED phototherapy is an effective, safe and non-painful treatment for mild to moderately severe acne vulgaris, particularly for papulopustular acne lesions. Lasers Surg. Med. 39:180,188, 2007. © 2007 Wiley-Liss, Inc. [source] A Novel Gel Formulation of 0.25% Tretinoin and 1.2% Clindamycin Phosphate: Efficacy in Acne Vulgaris Patients Aged 12 to 18 YearsPEDIATRIC DERMATOLOGY, Issue 3 2009Lawrence F. Eichenfield M.D. Recently, the US FDA approved the combination of 1.2% clindamycin (CLIN) and 0.025% tretinoin (RA) in a novel gel formulation for the treatment of mild to moderate acne, based on results from two 12-week, multicenter, double-blind Phase 3 trials in which patients were randomized to four treatment arms: CLIN/RA, CLIN, RA, and vehicle. The trials studied more than 4500 patients 12 years of age or older. In both trials, CLIN/RA gel produced significantly greater clinical improvements than vehicle or either monotherapy. CLIN/RA was safe and well tolerated in both trials and in a 52-week safety follow-up evaluation. The current study is a subgroup analysis that evaluates CLIN/RA's effects on acne lesion prevalence in 12- to 18-year-old patients with mild to severe baseline acne severity. CLIN/RA significantly reduced the number of inflammatory, noninflammatory, and total acne lesions after 12 weeks of treatment (p , 0.004) in 1,710 patients aged 12 to 18 years. Relatively greater improvements were seen following CLIN/RA treatment compared to CLIN or RA monotherapy, or the vehicle gel beginning as early as 2 weeks following treatment initiation. This novel CLIN/RA gel for treating acne is tolerable and safe and offers clinicians and teen aged patients a new and efficacious intervention for acne vulgaris. [Abstract amended after online publication date June 8, 2009] [source] Topical aminolaevulinic acid-photodynamic therapy for the treatment of acne vulgaris: a study of clinical efficacy and mechanism of actionBRITISH JOURNAL OF DERMATOLOGY, Issue 3 2004B. Pollock Summary Background, ,Acne affects 83,95% of 16-year-olds of both sexes, and many seek help from a clinician. Emerging problems with conventional acne treatments, specifically antibiotic resistance of Propionibacterium acnes and fears over the safety and tolerance of oral isotretinoin, create a demand for novel treatment modalities in acne. Objectives, To study the efficacy of aminolaevulinic acid-photodynamic therapy (ALA-PDT) in the treatment of acne and to identify the mode of action, looking specifically at the effects on surface numbers of P. acnes and on sebum excretion. Methods, ,Ten patients (nine men and one woman, age range 16,40 years) with mild to moderate acne on their backs were recruited. Each patient's back was marked with four 30-cm2 areas of equal acne severity. Each site was then randomly allocated to either ALA-PDT treatment, light alone, ALA alone or an untreated control site. At baseline, numbers of inflammatory and noninflammatory acne lesions were counted, sebum excretion measured by Sebutapes (CuDerm, Dallas, TX, U.S.A.) and surface P. acnes swabs performed. ALA cream (20% in Unguentum Merck) was applied under occlusion to the ALA-PDT and ALA alone sites for 3 h. Red light from a diode laser was then delivered to the ALA-PDT and light alone sites (635 nm, 25 mW cm,2, 15 J cm,2). Each patient was treated weekly for 3 weeks. At each visit acne lesion counts were performed and 3 weeks following the last treatment sebum excretion rates and P. acnes swabs were repeated. Results, There was a statistically significant reduction in inflammatory acne lesion counts from baseline after the second treatment at the ALA-PDT site but not at any of the other sites. No statistically significant reduction in P. acnes numbers or sebum excretion was demonstrated at any sites including the ALA-PDT site. Conclusions, ALA-PDT is capable of clinically improving acne. An alternative mode of action for ALA-PDT other than direct damage to sebaceous glands or photodynamic killing of P. acnes is suggested from the results of this study. [source] | ||||||||||