scholarly journals Morphometric analysis of the efficiency of bone defect substitution with fabric equivalents of bone tissue on the basis of multipotent mesenchymal stromal cells in dentistry

2020 ◽  
Vol 24 (1 (93)) ◽  
pp. 18-27
Author(s):  
A. V. Bambuliak ◽  
S. V. Tkachyk ◽  
O. Y. Gagen ◽  
Y. V. Goritsky
2011 ◽  
Vol 18 (1) ◽  
pp. 10-15
Author(s):  
Vasiliy Evgen'evich Mamonov ◽  
I N Shipunova ◽  
D A Svinareva ◽  
N V Proskurina ◽  
M M Ryashentsev ◽  
...  

Study of the efficacy of autologous bone marrow multipotent mesenchymal stromal cells (MMSC) with bioresorbable calcium carriers for the restoration of bone tissue in the site of critical distal femur spongy bone defect was performed in rabbits. System of rabbit's MMSC cultivation has been elaborated. After 2 - 3 passages MMSC were placed on bioresorbable calcium carriers and implanted into the site of preliminary created defect with 6 cm diameter. It was shown that implantation of MMSC in combination with bioresorbable carriers into the defect resulted in filling of spongy bone defect within 6 months after operation. The data obtained open promising perspectives for the application of MMSC in combination with appropriate carriers in tissue engineering for the treatment of vast skeleton injuries.


2016 ◽  
Vol 25 (7) ◽  
pp. 1405-1414 ◽  
Author(s):  
Lukas Skoloudik ◽  
Viktor Chrobok ◽  
David Kalfert ◽  
Zuzana Koci ◽  
Eva Sykova ◽  
...  

Biomaterials ◽  
2009 ◽  
Vol 30 (20) ◽  
pp. 3415-3427 ◽  
Author(s):  
Robert Pytlík ◽  
David Stehlík ◽  
Tomáš Soukup ◽  
Marie Kalbáčová ◽  
František Rypáček ◽  
...  

2021 ◽  
Vol 20 (1) ◽  
pp. 11-17
Author(s):  
Andri Bambuliak ◽  
Nataliia Kuzniak ◽  
Roman Dmytrenko ◽  
Lesia Lopushniak ◽  
Oleg Boichuk

In recent decades, the most common method of treating partial or complete adentia is the use of dental implants. Often, due to insufficient jaw bone volume due to atrophy in the are of the removed teeth, it is impossible to perform intraosseous implantation. In order to eliminate the defi cit of bone tissue before the installation of dental implants, surgical interventions are required. Examination and treatment with dental implants were performed on 140 patients who had previously undergone surgery and used bone augmentation materials and their combinations with multipotent mesenchymal stromal cells of adipose tissue to increase the volume of jaw bone tissue. 3 months after the installation of dental implants in patients of group I, in which the restoration of the volume of bone tissue of the jaws was performed using bone augmentation material «Colapan–L», and in persons of group II, where augmentation was used a combination of drug «Colapan–L», multipotent mesenchymal stromal cells of adipose tissue and platelet-rich plasma, the values of the OHI–S index corresponded to the data before treatment, p>0.05, and were equal to each other, p2>0.05. In the control group III, the values of this index increased 1.4 times relative to baseline, p <0.05, and were signifi cantly higher than in patients of groups I and II, p1<0.01. After 3 months of observation, a decrease in the PMA index data relative to baseline values was determined: 1.2 times in group I, p, p1 <0.01, and 1.1 times in group II, p <0.05, p1, p2<0,01. At the same time, in patients of group III the values of this parameter increased and were 1.3 times higher than the reference values, p <0.01. After 6 months of studies in patients of groups I and III, the values of the SchillerPisarev test were higher than the initial data, p<0.05, and were equal to each other, p1>0.05. In patients of group II, the values of this parameter were equal to the initial data, p>0.05, and were probably lower data in persons of groups I and III, p1, p2<0.01. It was found that in patients in whom a combination based on multipotent mesenchymal stromal cells of adipose tissue, the drug «Colapan–L» and platelet- enriched blood plasma was used to fi ll bone defects, peri-implant tissues were completely restored after dental implants. The effectiveness of our proposed osteoplastic combination in patients of the study groups was confi rmed by the positive dynamics of the values of the hygienic index OHI-S, periodontal index PMA and Schiller- Pisarev test during the observation. 


2020 ◽  
Vol 37 (1) ◽  
pp. 430-441
Author(s):  
Alexander Rühle ◽  
Andreas Thomsen ◽  
Rainer Saffrich ◽  
Maren Voglstätter ◽  
Birgit Bieber ◽  
...  

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Diego Noé Rodríguez-Sánchez ◽  
Giovana Boff Araujo Pinto ◽  
Luciana Politti Cartarozzi ◽  
Alexandre Leite Rodrigues de Oliveira ◽  
Ana Livia Carvalho Bovolato ◽  
...  

Abstract Background Nerve injuries are debilitating, leading to long-term motor deficits. Remyelination and axonal growth are supported and enhanced by growth factor and cytokines. Combination of nerve guidance conduits (NGCs) with adipose-tissue-derived multipotent mesenchymal stromal cells (AdMSCs) has been performing promising strategy for nerve regeneration. Methods 3D-printed polycaprolactone (PCL)-NGCs were fabricated. Wistar rats subjected to critical sciatic nerve damage (12-mm gap) were divided into sham, autograft, PCL (empty NGC), and PCL + MSCs (NGC multi-functionalized with 106 canine AdMSCs embedded in heterologous fibrin biopolymer) groups. In vitro, the cells were characterized and directly stimulated with interferon-gamma to evaluate their neuroregeneration potential. In vivo, the sciatic and tibial functional indices were evaluated for 12 weeks. Gait analysis and nerve conduction velocity were analyzed after 8 and 12 weeks. Morphometric analysis was performed after 8 and 12 weeks following lesion development. Real-time PCR was performed to evaluate the neurotrophic factors BDNF, GDNF, and HGF, and the cytokine and IL-10. Immunohistochemical analysis for the p75NTR neurotrophic receptor, S100, and neurofilament was performed with the sciatic nerve. Results The inflammatory environment in vitro have increased the expression of neurotrophins BDNF, GDNF, HGF, and IL-10 in canine AdMSCs. Nerve guidance conduits multi-functionalized with canine AdMSCs embedded in HFB improved functional motor and electrophysiological recovery compared with PCL group after 12 weeks. However, the results were not significantly different than those obtained using autografts. These findings were associated with a shift in the regeneration process towards the formation of myelinated fibers. Increased immunostaining of BDNF, GDNF, and growth factor receptor p75NTR was associated with the upregulation of BDNF, GDNF, and HGF in the spinal cord of the PCL + MSCs group. A trend demonstrating higher reactivity of Schwann cells and axonal branching in the sciatic nerve was observed, and canine AdMSCs were engrafted at 30 days following repair. Conclusions 3D-printed NGCs multi-functionalized with canine AdMSCs embedded in heterologous fibrin biopolymer as cell scaffold exerted neuroregenerative effects. Our multimodal approach supports the trophic microenvironment, resulting in a pro-regenerative state after critical sciatic nerve injury in rats.


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