Implant materials, for examples, plaster of Paris, Bone cement and ceramics which are used experimentally to regain shape and function, act as a scaffold for bone growth and contribute to the healing processes at bone defect developed by trauma, infection and other causes. Therefore, the effect of plastei of Paris on the bone defects of adult rabbits may be an interesting subject, particularly in the orthopedic field. The authors carried out an experiment to study the effect of plaster of Paris on the bone defect, using 30 adult rabbits weighing fmm 3000-3500 gm, which were divided into 3 main gmups. (Each group was composed of 10 adult rabbits.). In Group 1, which was the control group, made a defect at the proximal metaphysis of the tibia, 6 mm×6 mm×6 mm in size, using a drill bit and filled by hematoma spontaneously. In Group II and Group IU, a defect was also made by the same method as in Group I and a piece of Gelfoam or plaster of Paris was inserted into the bone defect respectively. Then we studied the healing processes of the bone defect by sacrifying animals of each group at 6th and 12 th week after operation. The results of this experiment were as follows. 1. New bone formarion in the bone defect was poor in group I and Gmup Il, but it was good in Group III. 2. The plaster of Paris, filling into the defect, was absorbed and removed from the site of implantation continuously and stimulated the new bone formation. 3. The Gelfoam in Group II was more rapidly absorbed than plaster of Paris and didn't stimulate the new bone formation.
Adult ; Animals ; Bone Development ; Calcium Sulfate ; Ceramics ; Gelatin Sponge, Absorbable ; Hematoma ; Humans ; Methods ; Orthopedics ; Osteogenesis ; Rabbits ; Tibia

The relationship between respiratory infections and exacerbations of wheezing in patients with wheezy bronchitis or asthma has been described. Most respiratory infections were viral or Mycoplasma pneumoniae. This study was performed to evaluate the effect of Mycoplasma pneumoniae infection on bronchial reactivity and atopic background. 106 patients with Mycoplasma pneumoniae pneumonia who were admitted to the department of pediatrics, Fatima Hospital, Taegu during the period of two years from January 1989 to December 1990 were involved in this study. The results were as follows 1) Out of 106 cases, 69 were male,37 were female and 34.9% of the cases were between 5~6 years of age. 35 cases(33.0%) had wheezing and the incidence of wheezing were higher in male than in female. 2) The incidence of wheezing was high in the patients with serum IgE level higher than 200IU/ml, patients with past and family history of allergy and the patients fed with formula feeding in infancy. 3) Eosinophils and the associated maxillary sinusitis had no effect on the incidence of wheezing. 4) The recurrence of wheezing was higher in Mycoplasma pneumoniae pneumonia with wheezing(26.8%) than in patients without wheezing(3.8%).
Asthma ; Bronchitis ; Child* ; Daegu ; Eosinophils ; Female ; Humans ; Hypersensitivity ; Immunoglobulin E ; Incidence ; Male ; Maxillary Sinus ; Maxillary Sinusitis ; Mycoplasma pneumoniae* ; Mycoplasma* ; Pediatrics ; Pneumonia* ; Pneumonia, Mycoplasma* ; Recurrence ; Respiratory Sounds* ; Respiratory Tract Infections

No abstract available.
Anemia, Hypoplastic, Congenital*

No abstract available.
Asthma* ; Theophylline*

No abstract available.
Nephrotic Syndrome*

No abstract available.
Hepatitis*

No abstract available.
Child* ; Humans ; Urinary Tract Infections* ; Urinary Tract*

No abstract available.

No abstract available.
Aspirin* ; Epithelial Cells*

No abstract available.
Hypoxia-Ischemia, Brain*