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Showing 1 to 10 of 10 for “"callus formation"”.
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Predictive modelling of the form and development of bone fracture healing
… the contention of this study that the rate and formation of bone healing can be modelled mathematically and computationally, respectively, based on mechanical stimuli induced by the relative motion between bone fragments. To argue this case, the following hypotheses are tested; 1) the …
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In-vivo-Testung eines neuartigen BMP-2/TCP-Composite
… no rhBMP-2 dose-dependent increase of new bone formation in the defect. But as shown with intravital fluorochrome staining, new bone formation in the defect started earlier using rhBMP-2. Histomorphometric analysis showed a dose-dependent increase in callus formation when rhBMP-2 was added. This …
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Propagation of asparagus (Asparagus officinalis L.) via somatic embryogenesis
… technique, the first step is the initiation of callus followed by the induction of the embryos and their developments into plants. The optimized concentration of cytokinin and kinetin for callus formation from in vitro green stem explants of two asparagus genotypes (CRD 168 and CRD 100) was …
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Inheritance of protoplast culturability and improvement in pollen development by protoplast manipulation in solanum
… and regenerability of a plant. The ability of callus formation and plant regeneration from protoplasts varies among plants. To understand the genetic basis for this variation, the mode of inheritance for protoplast culturability, defined as the ability to develop calli from cultured …
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Die Dynamisierung der winkelstabilen Plattenosteosynthese mit Hilfe der Dynamic Locking Screw (DLS) : ein experimentelle Studie an Schafen
… Op histomorphometrisch die deutlichste Kallusformation an der Cis- Kortex und die höchste Torsionssteifigkeit der geheilten Gliedmasse relativ zur gesunden Gegenseite. Summary In this in vivo study a new generation of locking screws was tested. A unilateral 45°osteotomy was performed on the …
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Towards plastid transformation in rapeseed (Brassica napus L.) and sugarbeet (Beta vulgaris L.)
… of conditions that make possible plastid transformation in both species. Tobacco leaf protoplasts (cv. ”petite Havana”, cv. ”Wisconsin 38”) were used to develop a novel technique – the TAL (thin-alginate-layers) technique. The TAL technique in combination with new culture media resulted in very …
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Cryopreservation of sweet potato shoot tips by vitrification
… that vitrified sweet potato shoot tips exhibited callus formation and that the vitrification protocol developed included high levels of within and between treatment variability for explant survival. The purpose of this study was therefore to, examine the various steps of the cryopreservation …
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Micropropagation of Begonia and a study of genome stability in Begonia rex
… Media for the induction and proliferation of callus are outlined. The influence of callus subculture and aging on the stability of the B. rex genome is assessed by chromosomal analysis of cells, in vitro and in regenerants. The B. rex genome is destabilized in callus culture but attenuation of …
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The Role of Gene Transcription and Inflammatory Cytokines in Bone Fracture Repair
… will heal through either intramembranous bone formation, involving the direct formation of bone callus, or endochondral bone formation, featuring a cartilage intermediary prior to bone callus formation. Both processes begin with inflammation, which sets the stage for a successful repair …
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Humeral shaft fractures: epidemiology, outcomes and predictors of nonunion
… a retrospective analysis of radiographic callus formation at six-weeks post-injury, and a prospective pilot study of freehand ultrasound assessment of humeral shaft fracture healing. The incidence of humeral shaft fractures was 12.6/100,000/year (typical fractures 11.2/100,000/year, …