The data in respect to efficacy of verapamil-containing scar cream for treatment of hypertrophic and keloid scars are presented in the article. Skin scars were simulated in rats by excision of a full-thickness skin flap size 5x4 cm2 in the center of the back. Upon wound healing and scar formation a daily twofold fomentation of verapamil-containing cream was carried out. Treatment efficacy was checked after 10, 30 and 60 days. The following indices were studied: an area of the scar, its type, consistence, color, sensitivity, and scar microcirculation according to biomicroscopy. The proposed novel method for treatment of hypertrophic and keloid scars with verapamil-containing cream allowed to obtain a sustained clinical result demonstrating a reducing area of the scar by 25%, a physiological scar formation, improving the consistence and scar colour changing to the normal skin colour, its softening and flattening, and pain disappearance. Due to the dermal application, the method was painless, safety and did not affect on the surrounding tissues. According to biomicroscopy a scar remodeling approximated the indices to the level of healthy skin in 93% of rats. The most significant clinical effect the cream with verapamil was observed in experimental animals in 60 days after treatment.
Исследовали влияние блокаторов медленных кальциевых каналов на культуру клеток, содержащих перитонеальные фибробласты крыс с и без гемоперитонеума. Установлено, что верапамил (0,1 мг/мл) оказывает выраженный эффект в отношении избыточной активности перитонеальных фибробластов, снижая уровень пролиферации клеток, нормализуя их коллагенсинтетическую функцию, уменьшая избыточную продукцию гиалуроновой кислоты. Дилтиазем (0,1 мг/мл) оказывает менее значимое, чем верапамил (в среднем на 35,6 % p < 0,05), нормализующее влияние на функциональную активность перитонеальных фибробластов и избыточную продукцию компонентов межклеточного матрикса. У нифедипина (0,1 мг/мл) данный эффект отсутствует. Таким образом, функциональная активность перитонеальных фибробластов может служить тест-системой для изучения фармакодинамики недигидропиридиновых блокаторов медленных кальциевых каналов.
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