This study was undertaken to acquire some information concerning the mechanism for reduction of nitroblue tetrazolium (NBT) dye by neutrophils. Male rabbits weighing more than 2 kilograms were used in this study. The vaccines. The vaccines utilized were bacterial and viral ones such as typhoid, cholera, measles, and mumps vaccines. The histochemical NBT test was carried out using the method by Park et al. With some modification. Vaccines were given the rabbits, and changes were observed in the percentage and number of pseudoeosinophils and NBT-positive pseudoeosils in the peripheral blood. The data obtained thus were discussed and summarized as follow:1. The percentage of the NBT-positive pseudoeosinophils increased in the rabbits to which the bacterial vaccines were given. 2. The percentage of NBT-positive pseudoeosinophils decreased in the rabbits to whick viral vaccines were given. 3. No association was found between the percentage of the NBT-positive pseudoeosinophils and the number of pseudodosinophils following the administeration.
Bacterial Vaccines ; Cholera ; Humans ; Male ; Measles ; Mumps ; Neutrophils ; Nitroblue Tetrazolium* ; Rabbits* ; Typhoid Fever ; Vaccines ; Viral Vaccines

No abstract available.
Biopsy* ; Child* ; Humans

Rapid industrialization in this country has brought about many serious socioeconomic problems, one of which is presented by the sharp increase in motor vehicle accidents. It has become one of the leading causes of death in children and adults. A few epidemiological studies have been made concerning traffic accidents, but most of them have not payed special attention to the traffic injuries of children. It is for this reason the study was undertaken by the authors. The authors selected, as materials for the observation, 340 patients below 20 years of age with injuries sustained from motor vehicle accidents. They were treated at the emergency room of Busan National University Hospital during the period from the beginning of 1974 to the end of 1978. The cases were analyzed statistically from an epidemiological point of view and the following results were obtained. 1. The motor vehicle accidents were more frequent in male children than in female, the ratio of male to female being approximately 2:1. 2. Although the monthly frequencies of motor vehicle accidents were almost uniform in distribution, seasonally there seemed to be a significant variation, indicating low frequencies in winter and high in spring. 3. The frequencies of motor vehicle accidents were greater on Monday, Tuesday and Saturday. 4. The median of the times at which motor vehicle accidents occured during the day was about 3 P.M. in the age group below 11 years, about 4 P.M in the age group ranging from 12 to 17 years and about 7 P.M. in the age group ranging from 18 to 20 years. 5. among the major injuries sustained from motor vehicle accidents, the head injuries (injuries within the cranium and fractures of the cranial bones) were the most frequent, occupying more than 50%; a feature characteristic of traffic injuries in children.6. The younger the children, the more serious the injury sustained, and therefore the higher mortality rate observed. 7. In general motor vehicles of large size such as bus and truck tended to cause more serious injuries than those of small size such as sedan, automobile with three wheels and motorcycles. 8. The motor vehicle accidents ocurring in major roads were apt to cause more serious injuries than those in minor.
Accidents, Traffic ; Adult ; Automobiles ; Busan ; Cause of Death ; Child* ; Craniocerebral Trauma ; Emergency Service, Hospital ; Epidemiologic Studies ; Female ; Humans ; Male ; Mortality ; Motor Vehicles* ; Motorcycles ; Seasons ; Skull