15 documents found, page 1 of 2
Randomized clinical study of injectable dextrin-based hydrogel as a carrier of ...
Machado, Alexandra; Pereira, Isabel; Costa, Filomena; Brandão, Ana; Pereira, José Eduardo; Maurício, Ana Colette; Santos, José Domingos; Amaro, InêsObjectives This study aimed to improve the performance and mode of administration of a glass-reinforced hydroxyapatite synthetic bone substitute, Bonelike by Biosckin® (BL®), by association with a dextrin-based hydrogel, DEXGEL, to achieve an injectable and moldable device named DEXGEL Bone. Methods Twelve participants requiring pre-molar tooth extraction and implant placement were enrolled in this study. BL® g...
Dextrin hydrogel loaded with a macroporous Bonelike® scaffold and dental pulp s...
Machado, A.; Pereira, Isabel; Pereira, José Eduardo; Maltez, Luís; Brandão, Ana; Alvites, Rui; Sousa, Ana Catarina; Branquinho, MarianaRegeneration of severe bone defects remains a challenge. A formulation of synthetic glass-reinforced hydroxyapatite bone substitute, Bonelike® Poro (BL®P), 250500 µm-diameter, with a dextrin-based hydrogel (HG), further loaded with human dental pulp stem cells (hDPSCs) with osteogenic differentiation ability, was tested for the management of critical-sized defects in an ovine model. Morphology, calcium release,...
Randomized clinical study of injectable dextrin-based hydrogel as a carrier of ...
Machado, Alexandra; Pereira, Isabel; Costa, Filomena; Brandão, Ana; Pereira, José Eduardo; Maurício, Ana Colette; Santos, José Domingos; Amaro, InêsThis study aimed to improve the performance and mode of administration of a glass-reinforced hydroxyapatite synthetic bone substitute, Bonelike by Biosckin® (BL®), by association with a dextrin-based hydrogel, DEXGEL, to achieve an injectable and moldable device named DEXGEL Bone.
Dextrin hydrogel loaded with a macroporous Bonelike® scaffold and dental pulp s...
Machado, Alexandra; Pereira, Isabel; Pereira, José Eduardo; Maltez, Luís; Brandão, Ana; Alvites, Rui; Sousa, Ana Catarina; Branquinho, MarianaRegeneration of severe bone defects remains a challenge. A formulation of synthetic glass-reinforced hydroxyapatite bone substitute, Bonelike® Poro (BL®P), 250–500 µm-diameter, with a dextrin-based hydrogel (HG), further loaded with human dental pulp stem cells (hDPSCs) with osteogenic differentiation ability, was tested for the management of critical-sized defects in an ovine model. Morphology, calcium release...
Regeneration of critical-sized defects, in a goat model, using a dextrin-based ...
Pereira, Isabel Sofia Melo; Pereira, José Eduardo; Maltez, Luís; Rodrigues, Alexandra; Rodrigues, Catarina; Oliveira, Manuela; Silva, Dina M.The development of injectable bone substitutes (IBS) have obtained great importance in the bone regeneration field, as a strategy to reach hardly accessible defects using minimally invasive techniques and able to fit to irregular topographies. In this scenario, the association of injectable hydrogels and bone graft granules is emerging as a well-established trend. Particularly, in situ forming hydrogels have ar...
In vivo systemic toxicity assessment of an oxidized dextrin‐based hydrogel and ...
Pereira, Isabel; Fraga, Sónia; Maltez, Luís; Requicha, João; Guardão, Luísa; Oliveira, Joana; Prada, Justina; Alves, Helena; Santos, José DomingosThe worldwide incidence of bone disorders is raising, mainly due to aging population. The lack of effective treatments is pushing the development of synthetic bone substitutes (SBSs). Most ceramic-based SBSs commercially available display limited handling properties. Attempting to solve these issues and achieve wider acceptance by the clinicians, granular ceramics have been associated with hydrogels (HGs) to pr...
In vivo systemic toxicity assessment of an oxidized dextrin-based hydrogel and ...
Pereira, Isabel; Fraga, Sónia; Maltez, Luís; Requicha, João; Guardão, Luísa; Oliveira, Joana; Prada, Justina; Alves, Helena; Santos, José DomingosThe worldwide incidence of bone disorders is raising, mainly due to ageing population. The lack of effective treatments is pushing the development of synthetic bone substitutes (SBSs). Most ceramic-based SBSs commercially available display limited handling properties. Attempting to solve these issues and achieve wider acceptance by the clinicians, granular ceramics have been associated with hydrogels to produce...
Long term performance evaluation of small-diameter vascular grafts based on pol...
Alexandre, Nuno; Amorim, Irina; Caseiro, Ana Rita; Pereira, Tiago; Alvites, Rui; Rêma, Alexandra; Gonçalves, Ana; Costa, Elisio; Santos-Silva, AliceThe functional and structural performance of a 5 cm synthetic small diameter vascular graft (SDVG) produced by the copolymerization of polyvinyl alcohol hydrogel with low molecular weight dextran (PVA/Dx graft) associated to mesenchymal stem cells (MSCs)-based therapies and anticoagulant treatment with heparin, clopidogrel and warfarin was tested using the ovine model during the healing period of 24 weeks. The ...
Evaluation of PVA biodegradable electric conductive membranes for nerve regener...
Ribeiro, Jorge; Caseiro, Ana Rita; Pereira, Tiago; Armada‐da‐Silva, Paulo Alexandre; Pires, Isabel; Prada, Justina; Irina, Amorim; Reis, Inês LealThe therapeutic effect of three polyvinyl alcohol (PVA) membranes loaded with electrically conductive materials - carbon nanotubes (PVA-CNTs) and polypyrrole (PVA-PPy) - were tested in vivo for neuro-muscular regeneration after an axonotmesis injury in the rat sciatic nerve. The membranes electrical conductivity measured was 1.5 ± 0.5 × 10-6 S/m, 579 ± 0.6 × 10-6 S/m, and 1837.5 ± 0.7 × 10-6 S/m, respectively. ...
Inflammatory response to dextrin-based hydrogel associated with human mesenchym...
Silva, D.; Caseiro, Ana Rita; Amorim, Irina; Pereira, Isabel; Faria, Fátima; Pereira, Tiago; Santos, José Domingos; Gama, F. M.; Maurício, Ana ColetteIncreasing relevance has been attributed to hydrogels due to their ability to provide an extracellular matrix (ECM)-like environment for cellular adhesion and proliferation, acting as mechanical scaffolds for tissue remodeling or as delivery matrices. In vivo biocompatibility of a hybrid dextrin hydrogel produced from oxidized dextrin and adipic acid dihydrazide and its combinations with human mesenchymal stem ...