Results 201 to 210 of about 133,244 (243)
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Fracture Callus in Osteopetrosis
Clinical Orthopaedics and Related Research, 1994The histologic features of bone callus after a traumatic fracture in a patient with osteopetrosis are presented. The fracture callus develops in stages that are apparently normal. The tissue is initially rich in bone-forming cells and vessels. One year later, however, unlike mature osteopetrotic bone, the tissue shows no Haversian organization.
L, de Palma +4 more
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Electrical Callus and Callus Formation by Electret
Clinical Orthopaedics and Related Research, 1977The callus formed by passing an electric current through bone is called electrodynamic callus. The amount of electrical current determines the quality of the callus (osseous, cartilagenous, or fibrous). Callus forms first at the negative pole and grows toward the positive pole.
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Injury, 1997
The bony callus was investigated by staining with the PAS and von Gieson techniques. The callus appeared to be composed of two adjoining but distinct types of bone. The birefringence observed in the periosteum and callus cartilage revealed different sized collagen fibres, each oriented perpendicularly to the long axis of the diaphysis.
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The bony callus was investigated by staining with the PAS and von Gieson techniques. The callus appeared to be composed of two adjoining but distinct types of bone. The birefringence observed in the periosteum and callus cartilage revealed different sized collagen fibres, each oriented perpendicularly to the long axis of the diaphysis.
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Organogenesis in Callus Culture
2003Plant cells can be totipotent, i.e., each cell may be capable of developing into an entire plant when provided with the correct environmental stimuli. Research during the last 30 yr has demonstrated that successful organogenesis in callus cultures can be achieved by the correct choice of medium components, selection of a suitable inoculum, and control ...
J T, Brown, B V, Charlwood
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Callus Stimulation in Distraction Osteogenesis
Plastic and Reconstructive Surgery, 2002Distraction osteogenesis has been described as in vivo tissue engineering. The ability to stimulate this process for the repair of bony defects or lengthening of congenitally shortened facial structures is likely to significantly impact the field of craniofacial surgery.
Chao, EYS +6 more
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The initiation of callus and regeneration from callus culture ofTulipa gesneriana
Plant Cell, Tissue and Organ Culture, 1996Cold treatment of seeds, obtained from crosses between cultivars ofT. gesneriana L., affects the developmental stage of embryos, which in turn influences the frequency of callus induction and the development of different callus types. Cold-treated, mature embryos and basal segments ofin vitro-derived bulblets, were suitable explants for the initiation ...
Famelaer, L. +4 more
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Callus formation and cucurbitacin B accumulation in Ecballium elaterium callus cultures
Fitoterapia, 2003Ecballium elaterium fruit juice is used for the treatment of sinusitis in Turkish folk medicine. The aim of this study was to increase the yield of cucurbitacin B, an anti-inflammatory compound previously isolated in various organs of E. elaterium, through tissue culture techniques.
Yesilada, E +3 more
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The effect of micromovement on callus formation
Journal of Orthopaedic Science, 2001Micromovement at fracture sites is known to promote callus formation and bridging of the bony fragments. The present study was conducted to identify the suitable amount of micromovement, and to analyze the location and timing of callus proliferation. A standardized transverse osteotomy, in the right metatarsus of 32 sheep, was used as a fracture model.
T, Yamaji +4 more
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Callus Cultures of Arabidopsis
Current Protocols in Microbiology, 2006AbstractProtoplasts are plant cells lacking cell walls. They can be generated from stationary callus cultures derived from Arabidopsis thaliana seedlings. After treatment of the callus with cellulase and pectinase, protoplasts are inoculated with viral RNAs using polyethylene glycol.
John C, McCormack, Anne E, Simon
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Archives of Surgery, 1927
The term "internal callus" is employed frequently by those who treat patients who have sustained fractures; this and other names are mentioned in textbooks. Blaisdell and Cowan described it in a series of experiments on kittens. 1 The late Dr. Edward Hall Nichols conducted a series of experiments on animals to demonstrate the internal callus, which he ...
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The term "internal callus" is employed frequently by those who treat patients who have sustained fractures; this and other names are mentioned in textbooks. Blaisdell and Cowan described it in a series of experiments on kittens. 1 The late Dr. Edward Hall Nichols conducted a series of experiments on animals to demonstrate the internal callus, which he ...
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