Видання зареєстровані авторами шляхом самоархівування
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Item Features of skin wounds healing under chronic hyperglycemia and improvement of their treatment methods(ALUNA Publishing, 2021) Максимова, Олена Сергіївна; Maksymova, Olena Serhiivna; German, S.M.; Москаленко, Павло Олександрович; Moskalenko, Pavlo Oleksandrovych; Ясенок, Вікторія Олександрівна; Yasenok, Viktoriia Oleksandrivna; Гортинська, Олена Миколаївна; Hortynska, Olena Mykolaivna; Hortynskyi, K.M.; Ткач, Геннадій Федорович; Tkach, Hennadii FedorovychThe aim: The work was aimed to study the histological, morphometric and planimetric features of skin regeneration in mature rats with chronic hyperglycemia under the influence of platelet-rich plasma. Materials and methods: 60 mature white laboratory rats were used. The animals were divided into three groups (I – control with mechanical skin injuries; II – rats with chronic hyperglycemia and modeled mechanical skin injuries; III – animals with the chronic hyperglycemia and modeled mechanical skin injuries which were injected with the platelet-rich plasma). The samples were studied using light microscopy. Statistical data processing was performed using SPSS-17. Results: On the 21st day, the epithelialization of control mature rats wound was almost complete. The epithelium contained all layers without pathological changes. The new dermis has been reorganized into papillary and reticular layers. On the 21st day, the wound of rats with chronic hyperglycemia was not completely covered with the epidermis. The connective tissue of the dermis was disorganized. On the 21st day, the wound epithelialization was also more complete in mature rats with chronic hyperglycemia received platelet-rich plasma compared to the rats with chronic hyperglycemia. The dermis contained a large number of blood vessels with normal, full-blooded lumens. Conclusions: The chronic hyperglycemia leads to disruption of epithelialization processes, angiogenesis, a delay in the reorganization of dermis connective tissue, and vascular remodeling. The injections of autologous platelet-rich plasma promote faster angiogenesis, reduce inflammation, and accelerate wound epithelialization.Item Тhе posttraumatic regeneration of long bone diaphysis in animals with chronic hyperglycemia(Charles University, 2018) Ткач, Геннадій Федорович; Tkach, Hennadii Fedorovych; Максимова, Олена Сергіївна; Maksymova, Olena Serhiivna; Дудченко, Євгеній Сергійович; Dudchenko, Yevhenii Serhiiovych; Ілляшенко, Вячеслав Юрійович; Illiashenko, Viacheslav Yuriiovych; Тимошенко, Олексій Олексійович; Tymoshenko, Oleksii OleksiiovychThe musculoskeletal system diseases are the most frequent cause of temporary incapacity for wolk and disabllity that leads to significant economic burden. The patients with chronic hyperglycemia have the higher risk of fractures. The present work relates to the investigation of the structure features of posttraumatic regeneration of tibia in rats under conditions of the induced chronic hyperglycemia.Item Improvement of Skeletal Muscle Regeneration by Platelet-Rich Plasma in Rats with Experimental Chronic Hyperglycemia(Hindawi, 2020) Raed, Rtail; Максимова, Олена Сергіївна; Максимова, Елена Сергеевна; Maksymova, Olena Serhiivna; Ілляшенко, Вячеслав Юрійович; Ильяшенко, Вячеслав Юрьевич; Illiashenko, Viacheslav Yuriiovych; Гортинська, Олена Миколаївна; Гортинская, Елена Николаевна; Hortynska, Olena Mykolaivna; Кореньков, Олексій Володимирович; Кореньков, Алексей Владимирович; Korenkov, Oleksii Volodymyrovych; Москаленко, Павло Олександрович; Москаленко, Павел Александрович; Moskalenko, Pavlo Oleksandrovych; Mohamad, Nasser; Ткач, Геннадій Федорович; Ткач, Геннадий Федорович; Tkach, Hennadii FedorovychHerein, the structural effect of autologous platelet-rich plasma (PRP) on posttraumatic skeletal muscle regeneration in rats with chronic hyperglycemia (CH) was tested. 130 white laboratory male rats divided into four groups (I—control; II—rats with CH; III—rats with CH and PRP treatment; and IV—rats for CH confirmation) were used for the experiment. CH was simulated by streptozotocin and nicotinic acid administration. Triceps surae muscle injury was reproduced by transverse linear incision. Autologous PRP was used in order to correct the possible negative CH effect on skeletal muscle recovery. On the 28th day after the injury, the regenerating muscle fiber and blood vessel number in the CH+PRP group were higher than those in the CH rats. However, the connective tissue area in the CH group was larger than that in the CH+PRP animals. The amount of agranulocytes in the regenerating muscle of the CH rats was lower compared to that of the CH+PRP group. The histological analysis of skeletal muscle recovery in CH+PRP animals revealed more intensive neoangiogenesis compared to that in the CH group. Herewith, the massive connective tissue development and inflammation signs were observed within the skeletal muscle of CH rats. Obtained results suggest that streptozotocin-induced CH has a negative effect on posttraumatic skeletal muscle regeneration, contributing to massive connective tissue development. The autologous PRP injection promotes muscle recovery process in rats with CH, shifting it away from fibrosis toward the complete muscular organ repair.Item Morphological Characteristics and Correction of Long Tubular Bone Regeneration under Chronic Hyperglycemia Influence(Hindawi, 2020) Дудченко, Євгеній Сергійович; Дудченко, Евгений Сергеевич; Dudchenko, Yevhenii Serhiiovych; Максимова, Олена Сергіївна; Максимова, Елена Сергеевна; Maksymova, Olena Serhiivna; Pikaliuk, V.S.; Муравський, Дмитро Валерійович; Муравский, Дмитрий Валерьевич; Muravskyi, Dmytro Valeriiovych; Кіптенко, Людмила Іванівна; Киптенко, Людмила Ивановна; Kiptenko, Liudmyla Ivanivna; Ткач, Геннадій Федорович; Ткач, Геннадий Федорович; Tkach, Hennadii FedorovychIntroduction. Unsatisfactory consequences of bone regeneration disorders in diabetes mellitus (DM) patients, their high prevalence, complication number, and difficulties in treatment require further study and deeper understanding of reparative osteogenesis mechanisms under chronic hyperglycemia and finding new effective and affordable approaches to their treatment. Therefore, the aim of our work was to study the histological, ultramicroscopic, and histomorphometric features of reparative osteogenesis in rats with chronic hyperglycemia (CH), as well as to investigate the possibility of platelet-rich plasma (PRP) use in a fracture area in order to correct the negative effects of CH on reparative osteogenesis processes. Study Object and Methods. The studies were performed on 70 white laboratory rats, mature males, which were divided into the following groups: control group, animals with posttraumatic tibial defect under conditions of CH exposure, rats with experimental CH that were administered with PRP into the bone defect, and animals for the assessment of glucose homeostasis and confirmation of simulated CH. Light microscopy was performed using an Olympus BH-2 microscope (Japan). Ultramicroscopic examination was performed using REM-102 scanning electron microscope. The statistical analysis was performed using SPSS-17 software package. Results. The formation of new bone tissue in animals with CH did not occur after two weeks. Only on the 30th day of reparative osteogenesis the newly formed woven bone tissue was 61.54% of the total regenerated area. It was less than the reference value by 22.89% (P < 0:001). On the 14th day of reparative osteogenesis, the regenerated area in a group of animals with CH and PRP injection consisted of connective tissue by 68.94% (4.94% less than in animals with CH (P < 0:001)) and woven bone tissue by 31.06%, (13.51% less than in the control group (P < 0:001)). On the 30th day, the area of woven bone tissue in a regenerate of this group was less than that of the control group by 12.41% (P < 0:001). Conclusion. Thus, chronic hyperglycemia contributes to inflammation delay within the bone defect site, which makes the process of reparative osteogenesis more prolonged. The results of chronic hyperglycemia effect on bone regeneration are also impairment of osteogenic cell proliferation and shift of their differentiation towards the fibrocartilage regenerate formation. The PRP corrects the negative impact of chronic hyperglycemia on reparative osteogenesis, promoting more rapid inflammatory infiltrate removal from the bone defect site and osteogenic beam formation and remodeling of woven bone into lamellar membranous bone tissue.