Comparative Analysis of Connective Tissue Responses to Implantation of Biodegradable Material and Polypropylene in Experimental Animals.

Autor: Eisenakh IA; Institute of Molecular Pathology and Pathomorphology, Federal Research Center of Fundamental and Translational Medicine, Novosibirsk, Russia. pathol@inbox.ru., Bondarev OI; Novokuznetsk State Institute for Further Training of Physicians - Affiliated Branch of Russian Medical Academy of Continuous Professional Education, Ministry of Health of the Russian Federation, Novokuznetsk, Russia., Mozes VG; Kemerovo State Medical University, Ministry of Health of the Russian Federation, Kemerovo, Russia., Lapii GA; Institute of Molecular Pathology and Pathomorphology, Federal Research Center of Fundamental and Translational Medicine, Novosibirsk, Russia., Bakarev MA; Institute of Molecular Pathology and Pathomorphology, Federal Research Center of Fundamental and Translational Medicine, Novosibirsk, Russia.
Jazyk: angličtina
Zdroj: Bulletin of experimental biology and medicine [Bull Exp Biol Med] 2021 Feb; Vol. 170 (4), pp. 505-510. Date of Electronic Publication: 2021 Mar 13.
DOI: 10.1007/s10517-021-05097-4
Abstrakt: We compared qualitative characteristics of the connective tissue at the site of implantation of polypropylene or a biodegradable polymer synthesized by electrospinning and consisting of 65% polycaprolactone and 35% polytrimethylene carbonate. Synthetic materials were implanted into the interfascial space of the muscles on the back of Wistar rats. The parameters of cellular and non-cellular structures of the forming connective tissue were studied in 1, 2, 3, 6, 9, and 12 months after implantation. It was found that the number of fibrocytes and fibroblasts around biopolymer and polypropylene increased during the period from 1 to 9 months, with a significant lag in case of biopolymer implantation; by 12 months, the number of fibrocytic cells did not significantly differ. The fibroplastic and angioplastic processes developed in the thickness of both materials, but with a one-month lag in case of biopolymer implantation due to degradation properties and nonporous structure of this polymer. Collagen fibers were actively synthesized around both materials, but in case of polypropylene, this process was more pronounced. In 6 months after implantation of polypropylene, dense regular connective tissue was formed; in 12 months after implantation of the biopolymer, the formation of dense irregular connective tissue was observed at the site of implantation. The biopolymer can be used to strengthen the core muscles.
Databáze: MEDLINE