Antimicrobial effects of blue light therapy against cutibacterium acnes: optimal dosing and impact of serial treatments.

Background: Blue light therapy (BLT) is a Food and Drug Administration cleared modality used in dermatology as an effective treatment of acne. The primary purpose of this study is to determine if there are dose-dependent antimicrobial effects of BLT against .

Methods: A known strain of was grown on chocolate agar in a controlled laboratory environment under anaerobic conditions for 1 week.

Efficacy of combinational therapy using blue light and benzoyl peroxide in reducing Cutibacterium acnes bioburden at the deltopectoral interval: a randomized controlled trial.

Background: The purpose of this study was to compare the efficacy of blue light therapy (BLT) and 5% topical benzoyl peroxide (BPO) gel in combination with standard chlorhexidine (CHX) preparation in eradicating Cutibacterium acnes at the deltopectoral interval measured by positive, quantitative culture findings.

Methods: Adult male volunteers were randomized to 1 of 3 treatment groups: BPO, BLT, and BPO followed by BLT. Contralateral shoulders served as matched controls.

Anagen Effluvium in Association With Extracorporeal Membrane Oxygenation.

Anagen effluvium (AE) is a type of alopecia with hair loss during the growth phase of a hair follicle and is most often associated with cytotoxic chemotherapy. This report describes a case of AE in a critically ill 2-year-old boy who developed cardiorespiratory failure requiring extracorporeal membranous oxygenation. We postulate that the combination of hypotension and hypoxia with subsequent reperfusion triggered an apoptotic cascade in the hair matrix, resulting in AE.