This study was made to investigate the effect of adenoidectomy on dentofacial skeleton in naso-respiratory dysfunction children. The clinical material compromised the 24 children in a previous study who had naso-respiratory dysfunction and 24 children who were the nasal breathing with normal occlusion. The cephalograms were taken at the initial examination and 1 year later for the control group and experimental group the paired sample statistical analysis was performed. The results were as follows. 1. In cranial base variable, difference between two groups were not statistically significant. 2. In craniofacial variables, experimental group showed brachyfacial pattern but control groups didn't show significant growth pattern. 3. In maxillary variables, experimental group showed flattening the plane. 4. In mandibular variables, experimental group showed the decrease of mandibular plane angle and gonial angle. 5. In facial height variables, experimental group showed horizontal growth rotation.
Adenoidectomy* ; Adenoids ; Child* ; Humans ; Respiration ; Skeleton* ; Skull Base

No abstract available.
Bronchiolitis ; Epidemiology ; Pneumonia ; Respiratory Syncytial Viruses

Balancing the rates of cell proliferation and cell death is important in maintaining normal tissue homeostasis. The relationship among apoptosis, cell proliferation and factors influencing apoptosis according to the histologic types in chemically induced mammary tumorigenesis appears important in understanding the pathogenesis of breast carcinoma. In this study, we investigated alterations in the kinetics of cell proliferation and apoptosis during rat mammary tumorigenesis induced by 7, 12-dimethylbenzanthracene (DMBA) and we related these changes to the expressions of bcl-2, p53, and TGF-beta. Seven-week-old female Sprague-Dawley rats were divided into an experimental group (20 mg/ml DMBA by oral intubation) and a control group. The results were as follows. 1. In the experimental group, breast tumors occurred in twenty two of fifty nine rats(37.3%, 22/59), and the total number of tumors was 100 (4.5 2.0/rat). The histological classification was infiltrating ductal carcinomas (n=5), ductal carcinomas with focal invasion (n=10), intraductal carcinomas (n=36), adenomas accompanied with intraductal proliferation (n=35), intraductal proliferation (n=9), and adenomas (n=5); 2. The differentiation of terminal end bud into alveolar bud (AB) in the experimental group was significantly lower than that of the control group (p<0.05); 3. BrdU labeled tumor cells were mainly located at the peripheral portion of tumor cell nests. BrdU labeling indices were highest in ductal carcinomas, less pronounced in intraductal proliferation, and lowest in adenomas, whereas apoptosis levels were highest in adenomas, less pronounced in intraductal proliferation, and lowest in ductal carcinomas (p<0.05); 4. p53 protein was not expressed in any breast tumors. Although the expression of bcl-2 protein was highest in infiltrating and focal infiltrative ductal carcinomas (58.3%), compared with adenomas, intraductal proliferation, and intraductal carcinomas (p<0.05), the extent of its expression was less than 1% of all tumor cells; 5. TGF-beta was mainly expressed in the central portion of tumor cell nests rather than in peripheral portion, and TGF-beta immunoreactive tumor cells displayed good differentiation and did not reveal BrdU immunoreactivity. TGF-beta labeling index of infiltrating and focal infiltrative ductal carcinomas was significantly higher than that of intraductal carcinomas, intraductal proliferation, and adenomas (p<0.05). Based on these results, it is thought that high cell proliferation and the suppression of apoptosis are closely associated with DMBA-induced rat mammary carcinogenesis. However, the suppression of apoptosis is not related to p53 mutation, bcl-2, and TGF-beta. TGF-beta seems to be reversely related to tumor cell proliferation but closely associated with the progression of the tumor, especially an invasion of breast carcinomas.
9,10-Dimethyl-1,2-benzanthracene ; Adenoma ; Animals ; Apoptosis* ; Breast Neoplasms ; Bromodeoxyuridine ; Carcinogenesis* ; Carcinoma, Ductal ; Carcinoma, Intraductal, Noninfiltrating ; Cell Death ; Cell Proliferation* ; Classification ; Female ; Homeostasis ; Humans ; Kinetics ; Rats* ; Rats, Sprague-Dawley ; Transforming Growth Factor beta

BACKGROUND: Suicide is a self-destructive behavior that can occur throughout life. Recently the suicide rate has gradually increased in Korea. Suicide is the third most common cause of death in adolescents. The most important factOrs closely related to suicide were depression and hopelessness. This study aimed to analyze first, relationships between suicidal ideation, depression, hopelessness, social support and self-esteem, second, the differences between the demographic factors and suicidal ideation, depression, hopelessness, social support and self-esteem. METHODS: This study was surveyed with a questionaire to 220 students of colleges located in Pusan. The instruments were used in this study were Harters(1988) Self-Perception Profile for College Students, Harter and Robinsons(1988) Approval Support Scale for Adolescents, Becks(1961) Beck Depression Inventory, Becks(1974) Beck Hopelessness Scale and Reynolds(1987) Suicidal ideation Questionaire. RESULTS: Self-esteem had a relatively strong positive correlation with social support. Suicidal ideation had a strong positive correlation with depression. Depression had a negative correlation with self-esteem and social support. Suicidal ideation had a negative correlation with self-esteem and social support. CONCLUSIONS: According to this study, the major factors related to suicidal tendency of adolescents were depression, low self-esteem, and low social support. Then the strategy to improve self-esteem and to encourage social support should be implemented for adolescents to prevent suicide.
Adolescent ; Busan* ; Cause of Death ; Demography ; Depression ; Humans ; Korea ; Self Concept ; Self-Injurious Behavior ; Suicidal Ideation ; Suicide

No abstract available.
Fractures, Open*

No abstract available.
Humans ; Hypothyroidism* ; Siblings*

PURPOSE: This study was done to investigate factors influencing successful aging in middle-aged women. METHODS: A convenience sample of 103 middle-aged women was selected from the community. Data were collected using a structured questionnaire and analyzed using descriptive statistics, two-sample t-test, one-way ANOVA, Kruskal Wallis test, Pearson correlations, Spearman correlations and multiple regression analysis with the SPSS/WIN 22.0 program. RESULTS: Results of regression analysis showed that significant factors influencing successful aging were post-traumatic growth and social support. This regression model explained 48% of the variance in successful aging. CONCLUSION: Findings show that the concept 'post-traumatic growth' is an important factor influencing successful aging in middle-aged women. In addition, social support from friends/co-workers had greater influence on successful aging than social support from family. Thus, we need to consider the positive impact of post-traumatic growth and increase the chances of social participation in a successful aging program for middle-aged women.
Aging* ; Diagnostic Self Evaluation* ; Female ; Humans ; Social Participation

BACKGROUND: Coagulase negative staphylococcus (CNS) spp. is a major pathogenic organism of nosocomial and community-acquired urianry tract infections, and causes infrctions in the immunocompromised host, and in particular, bloodstream infetions in patent with indwelling devices. High prevalance of methicillin resistance has been noticed in CNS which also have been recongnized as an important multidrug resistant pathogen. The optimal phenotypic method for detecting methicillin resistance still remains controversial, and new guidelines for detecting methicillin resistance of CNS was proposed by NCCLS in January 1999. We evaluated the relationship between mecA gene by PCR method and antimicrobial susceptibility tests according to the new NCCLS guidelines. METHODS: A total of 82 CNS isolates were examined for MICs and penicillin MICs by disk diffusion and agar dilution method according to NCCLS guidelines, and detections, and detection of mecA gene by PCR. RESULT: In disk diffusion method, 66 strains (80.5%) and 63 strains (76.8%) showed resistance to penicillin and oxacillin, respectively, and in agar dilution method, 71 strains(86.6%) and 53 strains (64.6%), respectively. In PCR method, mecA genes were detected in 49 strains(59.8%). Comparing with mecA gene detection by PCR method, the sensitivity of disk diffusion and agar dilution method was 95.8% and 89.8%, repectively. However, the sensitivity of disk diffusion and agar dilution method was 65.3% and 75.5%, respectively using previous NCCLS criteria. CONCLUSION: The new criteria of NCCLS detects the methicillin resistance induced by mecA gene more sensitively than previous one.
Agar ; Coagulase* ; Diffusion ; Immunocompromised Host ; Methicillin Resistance ; Oxacillin ; Penicillins ; Polymerase Chain Reaction ; Staphylococcus*

No abstract available.

No abstract available.
Homocystine ; Homocystinuria*