Epigallocatechin Gallate Enhances MAL-PDT Cytotoxic Effect on PDT-Resistant Skin Cancer Squamous Cells.

Photodynamic therapy (PDT) has been used to treat certain types of non-melanoma skin cancer with promising results. However, some skin lesions have not fully responded to this treatment, suggesting a potential PDT-resistant phenotype. Therefore, novel therapeutic alternatives must be identified that improve PDT in resistant skin cancer.

Cutaneous fistula due to pulmonary actinomycosis in a Mapuche girl.

Actinomycosis is a chronic granulomatous disease caused by Gram-positive anaerobic bacteria of the genus Actinomyces. Pulmonary actinomycosis is a rare infection in children, and its extension into the chest wall is infrequently reported. We report a case of pulmonary actinomycosis in a 14-year-old girl of Mapuche descent who presented with chronic respiratory symptoms and multiple discharging skin sinuses on her right lower chest wall.

Antimicrobial susceptibility and genetic characteristics of Propionibacterium acnes isolated from patients with acne.

Background:   Propionibacterium acnes is an important target in acne management. Antibiotic resistance has increased, reducing its clinical efficiency.

Objective:   To study the prevalence, antimicrobial susceptibility patterns, and resistance mechanisms of P.

Efficacy of red light alone and methyl-aminolaevulinate-photodynamic therapy for the treatment of mild and moderate facial acne.

Background: Photodynamic therapy (PDT) has been shown to be an effective alternative for acne. However, there is little information comparing the efficacy of red light alone and methyl aminolaevulinate (MAL)-PDT.

Aims: To compare the efficacy and tolerability of red light alone and MAL-PDT in patients with mild to moderate facial acne.

[Actinomycotic mycetoma due to Actinomadura madurae].

Mycetoma is a chronic, granulomatous, subcutaneous, inflammatory lesion caused by true fungi (eumycetoma) or filamentous bacteria (actinomycetoma). Mycetoma commonly affects young people between 20 and 40 years old. The most common affected site is the foot.