Analysis of Bone Repair Tissue after Implantation of Biomaterials and Application of Vibratory Waves

2014 ◽  
Vol 775-776 ◽  
pp. 9-12 ◽  
Author(s):  
Eliana dos Santos Câmara-Pereira ◽  
Ana Emília Holanda Rolim ◽  
Evelyn Reale ◽  
Rafael Barreto ◽  
Lilian Campos ◽  
...  
Keyword(s):  
Bone Tissue ◽  
Bone Mineral ◽  
Bone Repair ◽  
Tissue Response ◽  
Osteogenic Potential ◽  
Mineral Density ◽  
Genetic Modifications ◽  
Critical Defect ◽  
Hormonal Dysfunction ◽  
Vibrating Platform

Bone tissue in ideal conditions morphofunctional remodeling properly. The bone can be affected by fractures, tumors, hormonal dysfunction, senescence, genetic modifications, among others. In such circumstances, the proper diet, drug use, exercise and other factors are important to the prevention of bone mineral loss. The effect of kinesiotherapy obtained through the application of vibratory waves administered through the vibrating platform, Juvent1000 ® already been established in the prevention of bone mineral density, muscular trophism, among other systems in humans. The response by analyzing bone tissue of bone repair in critical defect is not known in experimental animals and in human clinical. This research evaluated the osteogenic potential critical defect in the calvaria of rats subjected to the application of vibratory waves obtained by vibrating platform and implant in the critical defect of rat calvaria. The bone tissue response was evaluated showed satisfactory results obtained in biological points 15, 45 and 120 days.

Characterization of Biomaterial and Tissue Response Analysis after Implantation

2018 ◽  
Vol 930 ◽  
pp. 48-52
Author(s):  
Eliana dos Santos Câmara-Pereira ◽  
Ana Emília Holanda Rolim ◽  
Isabela Cerqueira Barreto ◽  
Laise Monteiro Campos Moraes ◽  
Lilian Campos ◽  
...  
Keyword(s):  
Repair Process ◽  
Tissue Response ◽  
Precipitation Method ◽  
Molar Ratio ◽  
Osteogenic Potential ◽  
Response Analysis ◽  
Defect Site ◽  
Critical Defect ◽  
Defect Repair

Some biomaterials can be used to promote tissue repair process. The biological substitutes (biomaterials such as hydroxyapatite beads) can be used with some advantages and purpose of mimicking responses to on-site repair of the injured bone. The objective of this study was to evaluate the osteogenic potential of the biomaterial composed of hydroxyapatite and alginate in place of the critical defect. bioceramic samples stoichiometric hydroxyapatite was produced by the precipitation method, wet method with ion molar ratio of Ca 10 (PO 4) 6 (OH) 2, in which the Ca / P ratio was equal to 1.67. The reaction conditions were favorable to the composition of a biomaterial with crystalline phase. The synthesis of the biomaterial composed of hydroxyapatite and alginate microspheres (HAAlg5%; 200 ø 425mm) was obtained from two primary solutions with the aim of, in optimal reactive conditions, to form the precipitate. After synthesis the microspheres were implanted into the defect site. The potential effects of using HAAlg5% and the application of vibratory waves in the critical defect repair were unknown and the results described in this study are promising, considering the systemic therapy and at the site of injury. The biomaterial used promoted repair the injured tissue.

scholarly journals Bone quality associated with daily intake of coffee: a biochemical, radiographic and histometric study

2010 ◽  
Vol 21 (3) ◽  
pp. 199-204 ◽  
Author(s):  
Suzie Aparecida Lacerda ◽  
Renata Inahara Matuoka ◽  
Rander Moreira Macedo ◽  
Sergio Olavo Petenusci ◽  
Alessandra Aparecida Campos ◽  
...  
Keyword(s):  
Bone Mineral Density ◽  
Bone Quality ◽  
Bone Mineral ◽  
Bone Repair ◽  
Daily Intake ◽  
Male Rats ◽  
Lower Amount ◽  
Caffeine Intake ◽  
Mineral Density ◽  
Coffee Intake

Caffeine induces loss of calcium and influences the normal development of bone. This study investigated the effects of coffee on bone metabolism in rats by biochemical measurement of calcium, bone densitometry and histometry. Male rats, born of female treated daily with coffee and with coffee intake since born, were anesthetized, subjected to extraction of the upper right incisor, and sacrificed 7, 21 and 42 days after surgery. Blood and urine samples were taken, and their maxilla radiographed and processed to obtain 5-µm-thick semi-serial sections stained with hematoxylin and eosin. The volume and bone quality were estimated using an image-analysis software. The results showed significantly greater amount of calcium in the plasma (9.40 ± 1.73 versus 9.80 ± 2.05 mg%) and urine (1.00 ± 0.50 versus 1.25 ± 0.70 mg/24 h) and significantly less amount in bone (90.0 ± 1.94 versus 86.0 ± 2.12 mg/mg bone), reduced bone mineral density (1.05 ± 0.11 versus 0.65 ± 0.15 mmAL), and lower amount of bone (76.19 ± 1.6 versus 53.41 ± 2.1 %) (ANOVA; p≤0.01) in animals treated with coffee sacrificed after 42 days. It may be concluded that coffee/caffeine intake caused serious adverse effects on calcium metabolism in rats, including increased levels of calcium in the urine and plasma, decreased bone mineral density and lower volume of bone, thus delaying the bone repair process.

scholarly journals DON-induced changes in bone homeostasis in mink dams

2017 ◽  
Vol 61 (3) ◽  
pp. 357-362 ◽  
Author(s):  
Ewa Tomaszewska ◽  
Piotr Dobrowolski ◽  
Siemowit Muszyński ◽  
Krzysztof Kostro ◽  
Iwona Taszkun ◽  
...  
Keyword(s):  
Bone Tissue ◽  
Bone Mineral ◽  
Wall Thickness ◽  
Vertical Wall ◽  
Control Group ◽  
Bone Homeostasis ◽  
Mineral Density ◽  
Cross Sectional ◽  
Final Body Weight ◽  
Induced Changes

AbstractIntroduction: The aim of the study was to investigate the mechanical and geometric properties as well as bone tissue and mineral density of long bones in mink dams exposed to deoxynivalenol (DON) since one day after mating, throughout gestation (ca. 46 d) and lactation to pelt harvesting. Material and Methods: Thirty clinically healthy multiparous minks (Neovison vison) of the standard dark brown type were used. After the mating, the minks were randomly assigned into two equal groups: nontreated control group and DON group fed wheat contaminated naturally with DON at a concentration of 1.1 mg·kg-1of feed. Results: The final body weight and weight and length of the femur did not differ between the groups. However, DON contamination decreased mechanical endurance of the femur. Furthermore, DON reduced the mean relative wall thickness and vertical wall thickness of the femur, while vertical cortical index, midshaft volume, and cross-sectional moment of inertia increased. Finally, DON contamination did not alter bone tissue density, bone mineral density, or bone mineral content, but decreased the values of all investigated structural and material properties. Conclusion: DON at applied concentration probably intensified the process of endosteal resorption, which was the main reason for bone wall thinning and the weakening of the whole bone.

scholarly journals Poly (Glycerol Sebacate)-Based Bio-Artificial Multiporous Matrix for Bone Regeneration

2020 ◽  
Vol 8 ◽  
Author(s):  
Bo Liang ◽  
Qiang Shi ◽  
Jia Xu ◽  
Yi-Min Chai ◽  
Jian-Guang Xu
Keyword(s):  
Bone Tissue ◽  
Bone Repair ◽  
Bone Tissue Regeneration ◽  
Osteogenic Potential ◽  
Allogeneic Bone ◽  
Material Synthesis ◽  
Native Bone ◽  
High Elasticity ◽  
Good Biocompatibility ◽  
Endothelial Growth Factor

In recent years, bone repair biomaterials that combine cells and bioactive factors are superior to autologous and allogeneic bone implants. However, neither natural nor synthetic biomaterials can possess all desired qualities such as strength, porosity, and biological activity. In this study, we used poly (glycerol sebacate) (PGS), a synthetic material with great osteogenic potential that has attracted more attention in the field of tissue (such as bone tissue) regeneration owing to its good biocompatibility and high elasticity. It also has the advantage of being regulated by material synthesis to match the bone tissue's strength and can be easily modified to become functional. However, pure PGS lacks functional groups and hydrophilicity. Therefore, we used PGS as the substrate to graft the adhesive ligands RGD and vascular endothelial growth factor mimetic peptide. The bone repair scaffold can be prepared through photo crosslinking, as it not only improves hydrophobicity but also promotes vascularization and accelerates osteogenesis. Simultaneously, we improved the preparation method of hydrogels after freeze-drying and crosslinking to form a sponge-like structure and to easily regenerate blood vessels. In summary, a bone repair scaffold was prepared to meet the structural and biological requirements. It proved to serve as a potential bone-mimicking scaffold by enhancing tissue regenerative processes such as cell infiltration and vascularization and subsequent replacement by the native bone tissue.

scholarly journals The Effectiveness of Bone Mineral Density as Supplementary Tool for Evaluation of the Osteogenic Potential in Patients with Spinal Fusion

2009 ◽  
Vol 3 (1) ◽  
pp. 1 ◽  
Author(s):  
Byung-Hak Kim ◽  
Heun-Guyn Jung ◽  
Kyung-Ho Park ◽  
Dae-Hee Kim ◽  
Yong-Soo Choi
Keyword(s):  
Bone Mineral Density ◽  
Spinal Fusion ◽  
Bone Mineral ◽  
Osteogenic Potential ◽  
Mineral Density

scholarly journals Gender aspects of osteoporosis and their relationship to calcium balance

2017 ◽  
Vol 98 (3) ◽  
pp. 343-348 ◽  
Author(s):  
L A Fomina ◽  
I A Zyabreva
Keyword(s):  
Bone Mineral Density ◽  
Lumbar Spine ◽  
Bone Tissue ◽  
Bone Mineral ◽  
Health Examination ◽  
Calcium Balance ◽  
Z Score ◽  
Mineral Density ◽  
Blood Calcium ◽  
Fracture Development

Aim. To evaluate the state of bone tissue in comparison with calcium balance, to clarify the risk for fracture development in women of different age groups. METHODS. 92 females aged 19 to 89 years were examined clinically with densitometry of lumbar spine and femoral neck and measuring the concentration of total calcium in the blood. RESULTS. In females younger than 50 years decreased bone density according to Z-score was revealed in 30% of cases, among patients with its normal values significant trend to bone rarefaction (-2.0 SD <Z-score ≤-1.5 SD) was registered with the same rate. In the group of females older than 50 years osteopenia was revealed in 46.3% of cases and osteoporosis - in 42.7%, while more significant decrease in bone mineral density was found in the lumbar spine. Past medical history of fractures increased the rate of osteoporosis by 18%. In females older than 50 years compared to younger patients a significant increase of blood calcium concentration was revealed. Besides, statistically significant increase of its level was noted in cases of fractures in the past and osteoporosis. The revealed changes of bone tissue in females below 50 years of age are indicative of increased risk of osteoporosis development in the future. CONCLUSION. High prevalence of osteoporosis and osteopenia is revealed in the examined patients older than 50 years, and bone mineral density parameters were significantly inversely correlated with calcemia; hence, blood calcium level can be one of the criteria of bone tissue state and in combination with other risk factors for osteoporosis should be taken into account during periodic health examination of females older than 50 years.

scholarly journals Parameters of mineral metabolism and bone density in young males with Helicobacter pylori-associated chronic gastritis

2020 ◽  
Vol 9 (5-6) ◽  
pp. 735-742
Author(s):  
L. B. Drygina ◽  
N. A. Dorofeytchik-Drygina
Keyword(s):  
Bone Mineral Density ◽  
Helicobacter Pylori ◽  
Bone Density ◽  
Gastric Mucosa ◽  
Bone Tissue ◽  
Bone Mineral ◽  
Chronic Gastritis ◽  
Mineral Metabolism ◽  
Mineral Density ◽  
Gastric Diseases

Here we present the current data on the chronic gastritis prevalence in young people. An issue regarding involvement of Helicobacter pylori infection in formation of low bone density is discussed. Examining the features of bone tissue metabolism in infection-associated chronic gastritis to optimize diagnostic algorithm was shown to be of high significance. In the study there were enrolled 200 employees working at the EMERCOM of Russia, who suffered from the acid-dependent gastric diseases and risk factors for reducing bone mineral density. Depending on the bone mineral density parameters, examining functional activity of the gastric mucosa, verification of the H. pylori infection, examining parameters of mineral metabolism, vitamin D level, parathyroid hormone, bone tissue remodeling markers was performed. It was shown that atrophic changes in the gastric mucosa the played a lead role in developing low bone mineral density.

scholarly journals Xenogeneic bone mineral is efficient for the repair of critical-sized rat calvarial defects

2021 ◽  
Vol 6 (1) ◽  
pp. 16-26
Author(s):  
A. V. Veremeev ◽  
R. N. Bolgarin ◽  
V. G. Nesterenko ◽  
A. A. Andreev-Andrievskiy
Keyword(s):  
Bone Graft ◽  
Bone Mineral ◽  
Bone Repair ◽  
3D Structure ◽  
Autologous Bone Graft ◽  
Bone Volume ◽  
Calvarial Defect ◽  
Sprague Dawley ◽  
Mineral Density ◽  
Autologous Bone

Aim. To evaluate the efficiency of bone repair on a critical-sized rat calvarial defect model using our original xenogeneic bone mineral, widely established Geistlich Bio-Oss®, and autologous bone graft.Materials and Methods. We created a critical-sized calvarial defect in Sprague-Dawley rats (n = 48) and then divided them into 4 groups (unfilled defect, autologous bone graft, Geistlich BioOss® and our original xenogeneic bone mineral, 12 rats per group). Rats were sacrificed upon 4 and 12 months (6 rats per time point) with the following excision of the implant and adjacent tissues. 3D structure, extent of mineralisation, and bone volume were measured by means of microcomputed tomography. Microanatomy of the explants and adjacent tissue was investigated by haematoxylin and eosin staining.Results. The highest and the lowest bone volume was expectedly detected when the defect was filled with the autologous bone graft or remained unfilled, respectively. Replacement of the defect by the original bone mineral entailed better regeneration as compared to Geistlich Bio-Oss. Bone mineral density, bone thickness and the extent of mineralisation did not differ significantly between the experimental groups and were close to the positive control values, indicating efficient bone repair.Conclusions. Original xenogeneic bone mineral promotes induction of bone regeneration as compared to Geistlich Bio-Oss®, a commercially available bone mineral widely used in the clinical practice.

scholarly journals Native Bovine Hydroxyapatite Powder, Demineralised Bone Matrix Powder, and Purified Bone Collagen Membranes Are Efficient in Repair of Critical-Sized Rat Calvarial Defects

Materials ◽  
2020 ◽  
Vol 13 (15) ◽  
pp. 3393 ◽  
Author(s):  
Alexey Veremeev ◽  
Roman Bolgarin ◽  
Vladimir Nesterenko ◽  
Alexander Andreev-Andrievskiy ◽  
Anton Kutikhin
Keyword(s):  
Bone Mineral ◽  
Bone Repair ◽  
Bone Matrix ◽  
Bone Collagen ◽  
Demineralised Bone Matrix ◽  
Bovine Bone ◽  
Mineral Density ◽  
Artificial Defect ◽  
Demineralised Bone ◽  
Mineral Powder

Here we evaluated the efficacy of bone repair using various native bovine biomaterials (refined hydroxyapatite (HA), demineralised bone matrix (DBM), and purified bone collagen (COLL)) as compared with commercially available bone mineral and bone autografts. We employed a conventional critical-sized (8 mm diameter) rat calvarial defect model (6-month-old male Sprague–Dawley rats, n = 72 in total). The artificial defect was repaired using HA, DBM, COLL, commercially available bone mineral powder, bone calvarial autograft, or remained unfilled (n = 12 animals per group). Rats were euthanised 4 or 12 weeks postimplantation (n = 6 per time point) with the subsequent examination to assess the extent, volume, area, and mineral density of the repaired tissue by means of microcomputed tomography and hematoxylin and eosin staining. Bovine HA and DBM powder exhibited excellent repair capability similar to the autografts and commercially available bone mineral powder while COLL showed higher bone repair rate. We suggest that HA and DBM powder obtained from bovine bone tissue can be equally applied for the repair of bone defects and demonstrate sufficient potential to be implemented into clinical studies.

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