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Background Alnus glutinosa (L)  is a widespread medicinal plant on the territory of the Republic of Belarus.  Alnus glutinosa  (L) leaves tincture has an anti-inflammatory effect on the diseases of the throat, intestines, in rheumatism and gout. Water extracts from collective fruit, leaves and bark are used for gargling in stomatitis and gum bleeding. The purpose of the research was to establish wound healing activity of gels based on alcohol extracts from  Alnus glutinosa (L)  leaves on the model of a surface full flap skin wound on laboratory animals. Methods Regenerating action of new drugs (gels) based on tinctures of  Alnus glutinosa (L)  leaves was studied on a model of planar full-layer skin wound in laboratory animals. Wounds were treated daily with gels applied to complete healing. The wound area was measured planometrically to assess the effectiveness of drugs and then the percentage of area reduction was calculated. Regenerative action of the gels developed was compared to widely used in medical practice 4% Dexpanthenol Gel and Reparef-2 Ointment. 15 g of Reparef-2 Ointment contains 1200 mg of bien and 75 mg of dioxidine. Results Wound healing activity of gels containing tinctures of  Alnus glutinosa (L)  leaves based on 30% and 60% alcohol as to the rate of healing and the area of wounds epithelialization has been proved. Wound area treated with the gel based on  Alnus glutinosa (L)  extract containing 60% alcohol on day 13 of the experiment decreased by 95.59% ± 0.9% ( p  ≤ 0.05); based on the tincture containing 30% alcohol - by 92.93% ± 1.11%. Medicinal preparations with proved wound healing activity were compared: Reparef-2 Ointment (reduction percentage of wound area on day 13 of the experiment made 92.24% ± 2.21%) and Dexpanthenol Gel (reduction percentage of wound area on day 13 of the experiment made 83.09% ± 3.41%). Compared with the control group the gel based on 60% tincture of  Alnus glutinosa (L)  leaves showed a decrease in the epithelialization period by 29.5%; based on 30% tincture - by 24.6%; Reparef-2 Ointment - by 23.6% and Dexpanthenol Gel - by 13.8%. Conclusions The results of this study showed that the developed gels based on  Alnus glutinosa (L)  have a regenerating action and can be used to treat wound processes taking into account previously established antimicrobial activity.

Effect of wound healing in gels containing tinctures of Alnus glutinosa (L) leaves