2 research outputs found
Эффективность применения n-тирозола для стимулирования регенерации слизистой оболочки губы при экспериментальном стоматите
The purpose of the study is to investigate the effectiveness of the use of n-tyrosol (extract of rhodiola rosea) in the form of gel on the mucous membrane of the lip in rats with experimental stomatitis.Materials and methods. The experiments were carried out on 54 white male rats weighing 220–280 g. The animals were divided into three groups: control, experimental for comparison and experimental main. When modeling chemical stomatitis in rats by applying 5% solution of caustic sodium to the mucous membrane of the lip, the development of inflammation was observed. The local application of the gel based on n-tyrosol was carried out three times a day for 12 days.Histological and macroscopic examination was performed on the 3rd, 7th and 12th days. The extent of damage was recorded by measuring the area of the lesion in square millimeters (mm2 ). At the same time a control material was taken and was fixed in formalin, embedded into paraffin, stained with hematoxylin and eosin by Van Gieson. Specific areas of dense unformed connective tissue, lymphomonocytic infiltration, granulation tissue were determined in the lesion and surrounding tissues; the numerical density of the vessels was determined in 1 mm2 . The data obtained during the study of the dynamics of healing were averaged in the groups mentioned above and subjected to statistical processing using nonparametric (Mann–Whitney and Wilcoxon) methods using the computer program Statistica 8.0.Results. On the 12th day, the area of the lesions was more than twice as large as the surface of burn surfaces, on which the gel with n-tyrosol was used. The use of n-tyrosine-based gel applications reduced by half the specific area of lymphomonocytic infiltration in the surrounding tissues and in the lesion itself, and promoted a more rapid maturation of the connective tissue. Quantitative analysis revealed that the use of the gel with n-tyrosol stimulated the proliferation of granulation and connective tissue, as well as the growth of newly formed vessels in the burn area. Thus, topical application of the n-tyrosine-based gel helped to reduce the inflammatory response and stimulated the regeneration process.Цель исследования. Изучение эффективности применения n-тирозола (экстракт родиолы розовой) в виде геля на слизистую оболочку губы у крыс с экспериментальным стоматитом.Материал и методы. Эксперименты проводились на 54 белых самцах крыс массой 220–280 г. Животные были разделены на три группы: контрольная, экспериментальная сравнения и экспериментальная основная. При моделировании у крыс химического стоматита путем аппликации 5%-м раствором едкого натрия на слизистую оболочку губы наблюдалось развитие воспаления. Местное нанесение геля на основе n-тирозола проводили три раза в день в течение 12 сут.Гистологическое и макроскопическое исследования осуществляли на 3-и, 7-е и 12-е сут. Размеры повреждения регистрировали путем измерения площади очага поражения, мм2. Одновременно производили взятие контрольного материала, который фиксировали в формалине, заливали в парафин, окрашивали гематоксилином и эозином и по Ван Гизону. В очаге поражения и окружающих его тканях определяли удельные площади плотной неоформленной соединительной ткани, лимфомоноцитарной инфильтрации, грануляционной ткани; численную плотность сосудов в 1 мм2 . Данные, полученные в ходе исследования динамики заживления, усредняли по вышеуказанным группам и подвергали статистической обработке с использованием непараметрических (Манна – Уитни и Вилкоксона) методов при помощи компьютерной программы Statistiсa 8.0.Результаты. На 12-е сут площадь участков поражения более чем вдвое превышала площадь ожоговых поверхностей, на которых применяли гель с n-тирозолом. Использование аппликаций геля на основе n-тирозола почти вдвое снижало удельную площадь лимфомоноцитарной инфильтрации в окружающих тканях и в самом очаге поражения, способствовало более быстрому созреванию соединительной ткани. Количественный анализ установил, что применение геля на основе n-тирозола стимулирует пролиферацию грануляционной и соединительной ткани, а также рост новообразованных сосудов в месте ожога. Таким образом, местное нанесение геля на основе n-тирозола способствовало уменьшению воспалительной реакции и стимулировало процесс регенерации
Efficacy of n-tyrozol medication for regeneration stimulation of lip mucous membrane at experimental stomatitis
The purpose of the study is to investigate the effectiveness of the use of n-tyrosol (extract of rhodiola rosea) in the form of gel on the mucous membrane of the lip in rats with experimental stomatitis.Materials and methods. The experiments were carried out on 54 white male rats weighing 220–280 g. The animals were divided into three groups: control, experimental for comparison and experimental main. When modeling chemical stomatitis in rats by applying 5% solution of caustic sodium to the mucous membrane of the lip, the development of inflammation was observed. The local application of the gel based on n-tyrosol was carried out three times a day for 12 days.Histological and macroscopic examination was performed on the 3rd, 7th and 12th days. The extent of damage was recorded by measuring the area of the lesion in square millimeters (mm2 ). At the same time a control material was taken and was fixed in formalin, embedded into paraffin, stained with hematoxylin and eosin by Van Gieson. Specific areas of dense unformed connective tissue, lymphomonocytic infiltration, granulation tissue were determined in the lesion and surrounding tissues; the numerical density of the vessels was determined in 1 mm2 . The data obtained during the study of the dynamics of healing were averaged in the groups mentioned above and subjected to statistical processing using nonparametric (Mann–Whitney and Wilcoxon) methods using the computer program Statistica 8.0.Results. On the 12th day, the area of the lesions was more than twice as large as the surface of burn surfaces, on which the gel with n-tyrosol was used. The use of n-tyrosine-based gel applications reduced by half the specific area of lymphomonocytic infiltration in the surrounding tissues and in the lesion itself, and promoted a more rapid maturation of the connective tissue. Quantitative analysis revealed that the use of the gel with n-tyrosol stimulated the proliferation of granulation and connective tissue, as well as the growth of newly formed vessels in the burn area. Thus, topical application of the n-tyrosine-based gel helped to reduce the inflammatory response and stimulated the regeneration process