Fractional lasers have become widespread in dermatology owing to their efficacy and safety. Comparative analysis of histological features after laser rejuvenation using a 1064‐nm fractionated handpiece picosecond laser with different energy fluence levels (1.1 or 2.1 J/cm2). An open‐label, study of 28 women aged 36 to 60 years with signs of age‐related photodamage and skin changes of the face and neck was conducted using a fractional picosecond 1064 nm laser in low vs high fluence. The clinical assessment at 3 weeks showed more pronounced effect on facial skin rejuvenation with the higher fluence of 2.1 J/cm2 compared to 1.1 J/cm2. The effect and safety of laser rejuvenation using a picosecond laser has been shown with more pronounced histological effects at higher fluences.
Tumor necrosis factor alpha (TNF-α) is one of the key inflammatory cytokines in the pathogenesis of psoriasis and psoriatic arthritis, and its inhibition with genetically engineered biological drugs ensures control of the main symptoms of these diseases. Certolizumab pegol is a PEGylated (linked to polyethylene glycol) Fab’ fragment of a monoclonal antibody that inhibits human TNF-α. It is approved for treatment of moderate to severe plaque psoriasis and psoriatic arthritis. This review summarizes the results of randomized clinical trials of efficacy and safety of certolizumab pegol in plaque psoriasis (CIMPASI 1, CIMPASI 2, and CIMPACT) and psoriatic arthritis (Rapid-PsA). The represented data demonstrate high efficacy of certolizumab pegol is bio-naïve patients and in patients previously exposed to other TNF inhibitors or IL17 inhibitors. The absence of the Fc-fragment in certolizumab pegol ensures minimal to no placental transfer of the drug and enables its usage during the entire pregnancy.Conflict of interest: the authors state that there is no potential conflict of interest requiring disclosure in this article.
Описан чрезвычайно редкий случай синусного гистиоцитоза нелангергансового типа у пациентки 55 лет с изолированной локализацией процесса на коже правой щеки, без вовлечения нодулярных структур. Основным кожным проявлением был узел эритематозно-синюшного цвета, с наличием множественных милиумподобных высыпаний на поверхности. При патоморфологическом исследовании особенностью являлось наличие большого количества плазматических клеток, кроме этого описан феномен эмпериполеза, который сначала был ошибочно воспринят морфологами как «фагоцитоз». При иммуногистохимическом исследовании изменения характеризовались пролиферацией крупных полигональных гистиоцитов с накоплением пенталамеллярных маркеров в их цитоплазме (протеин S-100, CD68). Ключевые слова: синусный гистиоцитоз кожи нелангенгарсового типа, кожная форма, эмпериполез, диагностика, иммуногистохимическое (ИГХ) исследование биоптата Конфликт интересов: авторы заявляют об отсутствии потенциального конфликта интересов, требующего раскрытия в данной статье.
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