BACKGROUND: In recent years, lymphocyte subset analysis in peripheral blood is widely performed using erythrocytes-lysed whole blood and two color immunofluorescence/flow cytometry method. Use of fresh blood drawn within 6 hours of staining is recommended, and some patients have to revisit the hospital for blood collection. We tested whether 24 hours-refrigerated/stored whose blood can be used for lymphocyte subset analysis. METHODS: Twenty consecutive blood samples from patients (including nine HIV positive patients) collected in EDTA-vacutainer were tested: 1) on the day of sampling using fresh blood kept at room temperature for up to 6 hours until staining (as recommended by the manufacturer) and 2) on the following day using the same tube of blood refrigerated for 24 hours after the first staining. Two colon immunofluorescenc staining was done using Simultest(TM) IMK-Lymphocyte kit (Beckon Dickinson, U.S.A.) and flow cytometric analysis was performed using FACScan and SimulSET(TM) software (Becton Dickinson, U.S.A.). Results of alive kinds of Lymphocyte subsets (CD3+, CDl9+, CD3+CD4+CD3+CD8+, CD3-CDl6+ and/or CD56+) on day 1 and day 2 were compared by pained-t test and Wilcoxon signed rank test. RESULTS: There was no significant change of values for all of the lymphocyte subsets except CD3+CD8+suppressor/cytotoxic (S/C) T cells. There was a slight but statistically significant change in S/C T cells (39.9%-->41.8%: 1.9%, p=0.008) after 24 hours of refrigeration, and this change was observed mainly in HIV-positive patient group. However, there was no significant change in the absolute count of helper/inducer T cells or CD4/CD8 ratio, and the change of S/C T cells in these patients was not considered to be of clinical significance. CONCLUSIONS: The difference in the values of lymphocyte subsets between fresh blood and 24 hours-refrigerated blood was negligible and it is concluded that 24 hours-stored blood samples can be used for lymphocyte subset analysis for clinical purposes.
Colon ; HIV ; Humans ; Lymphocyte Subsets* ; Lymphocytes* ; Refrigeration ; T-Lymphocytes

BACKGROUND: The HLA system is known to be the most polymorphic genetic system in human and there are characteristic racial differences in the distribution of HLA antigens, alleles, and haplotypes. This study was performed to examine the frequency of HLA antigens, alleles and haplotypes in Koreans. METHODS: Two thousand healthy Koreans registered for unrelated bone marrow donors were subject to the study. HLA-A, B and C antigens were typed by the serological method, and HLA-DR DNA typing (low resolution) was done by PCR and reverse hybridization. HLA allele and haplotype frequencies and linkage disequilibrium values were calculated by the maximun likelihood method using the computer program of the 11th International Histocompatibility Workshop. RESULTS: HLA antigens identified in 2000 Koreans were 14 in A locus, 33 in B locus, 8 in C locus and 12 in DR locus. Alleles showing frequencies of more than 10% in decreasing order of frequency In each HLA locus were A2, A24, A33, All, B44, B62; CBL, Cw3, Cwl, Cw7, DR4, DR2, DRl3, DR8, and DR9. Among A-B, C-B, B-DR 2-locus haplotypes, A33-B44, A30-B13, Al-B37, Cwl-B54, Cw4-B62, B7-DR1, B37-DR10 showed strong positive linkage disequilibrium (Chi-square > 1000). The most common A-B-DR haplotypes in Koreans occurring at frequency of more than 2% were A33-B44-DRl3 (4.8%), A33-B58-DRl3 (3.2%), A33-B44-DR7 (2.6%), All-B62-DR4 (2.3%), A24-B7-DR1 (2.3%), and A30-Bl3-DR7 (2.1%) Comparison of the distribution of A-B-DR haplotypes among east Asian populations reveals that Koreans are most close to Japanese, but show higher degree of polymorphism in the distribution of HLA haplotypes compared to Japanese. CONCLUSIONS: The results obtained in this study can be used as basic data for Koreans in the fields of organ transplantation, disease association studies and anthropologic studies.
Alleles ; Asian Continental Ancestry Group ; Bone Marrow ; DNA Fingerprinting ; Education ; Haplotypes* ; Histocompatibility ; HLA Antigens* ; HLA-A Antigens ; HLA-DR Antigens ; Humans ; Linkage Disequilibrium ; Organ Transplantation ; Polymerase Chain Reaction ; Tissue Donors ; Transplants

No abstract available.
Fallopian Tubes* ; Female ; Pregnancy*

PURPOSE: There is increasing attention to smart-learning as a new education paradigm. The purpose of this study was to identify the level of intention to use smart-based Continuing Nurse Education (CNE) and factors influencing intention to use smart-based CNE. METHODS: Participants were 486 nurses from 14 organizations, including 12 hospitals, a nurses association, and an office of education. Data were collected from November 5 to 18, 2014 using self-report questionnaires. Data were analyzed using descriptive statistics, t-test, ANOVA, Pearson correlation, and stepwise multiple regression. RESULTS: The mean score for intention to use smart-based CNE was 6.34 out of 10. The factors influencing intention to use smart-based CNE were nursing informatics competency, current unit career, and smartphone addiction. These variables explained 10% of variance in intention to use smart-based CNE. CONCLUSION: The findings of this study suggest that efforts to enhance the nursing informatics competency of nurses could increase usage rate of smart-based CNE. The CNE policy makers will find this study very useful and the findings of this study will help to provide insight into the best way to develop smart-based CNE.
Administrative Personnel ; Education* ; Education, Continuing ; Humans ; Intention* ; Nursing Informatics

The thirty eight newborn infants with periventricular leukomalacia who were admitted to the neonatal intensive care unit of Gil General Hospital from March 1, 1988 to June 30, 1991, were investigated for ultrasonographic findings, risk factors and neurological outcome. The results were as follows: 1) There were 38 cases of PVL including 21 echogenic flarings and 17 cystic PVL's. 2) Mean birth weight was 2,250 gm and mean gestational age was 35 week. 3) Mean detection timing was 4th day in echogenic flarings and 18th day in cystic PVL's. 4) PVL's were located in the parietal region in 1 case and fronto-parieto-occipital in 3 cases. 5) Mean cyst size was 6 mm. 6) Multiple logistic regression analysis for the risk factors of PVL showed that low birth weight, apnea and seizure were the most significant contributing factors (p<0.05). 7) In the follow-up study of cystic PVL's, 7 cases showed improvement, 7 cases developed into multicystic encephalomalacia and 3 cases developed into atrophy. 8) Neurodevelopmental outcome of cystic PVL's showed nomal; 6.2%, minor neurodevelopmental defect; 43.8%, major neurodevelopmental defect; 31.2% and death; 18.8%. 9) Neurosonographic predictability for neurodevelopemental sequelae by cystic PVL's showed sensitivity; 63.6%%, specificity; 98.0%, positive predictive value; 92.8% and accuracy; 88.2%. 10) Major neurodevelopmental defect was more frequent, cyst size being larger and location being more extensive (p<0.05).
Apnea ; Atrophy ; Birth Weight ; Encephalomalacia ; Follow-Up Studies ; Gestational Age ; Hospitals, General ; Humans ; Infant, Low Birth Weight ; Infant, Newborn ; Intensive Care, Neonatal ; Leukomalacia, Periventricular* ; Logistic Models ; Rabeprazole ; Risk Factors* ; Seizures ; Sensitivity and Specificity

BACKGROUND: HLA-B5102 is a newly approved antigen at the meeting of the WHO Nomenclature Committee held after the Eleventh International Histocompatibility Workshop. It had been called B5l.35 because it was defined by both B5l and B35 antisera. HLA-B5102 antigen cannot be accurately determined by current commercial HLA typing trays. This study was carried out to assess the frequency of HLA-B5102 antigen in Koreans and serological reaction patterns of HLA-B5102 on commercial HLA trays. METHODS: We performed HLA-A, B, C serological typing for 2,000 Koreans registered for KMDP (Korean Marrow Donor Program) donors using the Terasaki Oriental Tray (One Lambda, USA). Selected samples (17/2000) which showed atypical B5 reaction patterns were tested against Japan Central Block HLA Workshop tray to detect the presence of HLA-B5102. RESULTS: HLA-B5102 showed a phenotype (antigen) frequency of 0.45% (9/2000) and an allele frequency of 0.23%. Two locus HLA haplotype and linkage analysis showed that HLA-B5102 was in linkage disequilibrium with HLA-A3l (p<0.01). The serological patterns of HLA-B5102 on Terasaki Oriental Tray were 1) Lot 14, 15 : B5(+), 2) Lot 15 B : B5(+), B35+53(+), and 3) Lot 16 : B5(+), B5l(+), B35+53(+), and therefore could be identified as HLA-B5, B5l, B52, B35 or B53. CONCLUSIONS: The frequency of HLA-B5102 in the Korean population (antigen frequency 0.45%, allele frequency 0.23%) is similar to that of Japanese. The presence of HLA-B5102 can be suspected when atypical BS reaction patterns are encountered in commercial HLA typing trays, and B5 or BSI had better been assigned to these cases when additional confirmatory typing is not available.
Asian Continental Ancestry Group ; Bone Marrow ; Education ; Gene Frequency ; Haplotypes ; Histocompatibility ; Histocompatibility Testing ; HLA-A Antigens ; Humans ; Immune Sera ; Japan ; Linkage Disequilibrium ; Phenotype ; Tissue Donors

BACKGROUND: HLA-B5102 is a newly approved antigen at the meeting of the WHO Nomenclature Committee held after the Eleventh International Histocompatibility Workshop. It had been called B5l.35 because it was defined by both B5l and B35 antisera. HLA-B5102 antigen cannot be accurately determined by current commercial HLA typing trays. This study was carried out to assess the frequency of HLA-B5102 antigen in Koreans and serological reaction patterns of HLA-B5102 on commercial HLA trays. METHODS: We performed HLA-A, B, C serological typing for 2,000 Koreans registered for KMDP (Korean Marrow Donor Program) donors using the Terasaki Oriental Tray (One Lambda, USA). Selected samples (17/2000) which showed atypical B5 reaction patterns were tested against Japan Central Block HLA Workshop tray to detect the presence of HLA-B5102. RESULTS: HLA-B5102 showed a phenotype (antigen) frequency of 0.45% (9/2000) and an allele frequency of 0.23%. Two locus HLA haplotype and linkage analysis showed that HLA-B5102 was in linkage disequilibrium with HLA-A3l (p<0.01). The serological patterns of HLA-B5102 on Terasaki Oriental Tray were 1) Lot 14, 15 : B5(+), 2) Lot 15 B : B5(+), B35+53(+), and 3) Lot 16 : B5(+), B5l(+), B35+53(+), and therefore could be identified as HLA-B5, B5l, B52, B35 or B53. CONCLUSIONS: The frequency of HLA-B5102 in the Korean population (antigen frequency 0.45%, allele frequency 0.23%) is similar to that of Japanese. The presence of HLA-B5102 can be suspected when atypical BS reaction patterns are encountered in commercial HLA typing trays, and B5 or BSI had better been assigned to these cases when additional confirmatory typing is not available.
Asian Continental Ancestry Group ; Bone Marrow ; Education ; Gene Frequency ; Haplotypes ; Histocompatibility ; Histocompatibility Testing ; HLA-A Antigens ; Humans ; Immune Sera ; Japan ; Linkage Disequilibrium ; Phenotype ; Tissue Donors

Moyamoya disease is a rare occlusive cerebrovascular disease characterized by stenosis or occlusion of the main cerebral arteries. It has a tendency for multifactorial inheritance and familial occurrence, although its pathogenesis is not clear. We observed this disease in two girls from the same family:one was eight years old and the other was 45 months. They presented with transient ischemic attacks. We performed cerebral angiography on both patients and magnetic resonance angiography (MRA) on the younger. Both approaches showed the typical features of moyamoya disease, and MRA successfully revealed abnormal findings specific for the disease in the second child. Both children received encephaloduroarteriosynangiosis (EDAS) and this produced good results. MRA is thus a powerful and noninvasive way of detecting individuals at high risk of developing this disease. Considering the reported familial incidence of moyamoya disease in Japan, a careful search for family members using MRA would probably reveal many more such cases in Korea.
Cerebral Angiography ; Cerebral Arteries ; Child ; Constriction, Pathologic ; Female ; Humans ; Incidence ; Ischemic Attack, Transient ; Japan ; Korea ; Magnetic Resonance Angiography ; Moyamoya Disease* ; Multifactorial Inheritance

No abstract available.
Thyroid Gland* ; Thyroid Nodule*

Fractures of the femoral neck in children are rare and usually severe violence to occur, which accounts for the high frequency of associated injuries. Since the femoral neck in children has many anatomic and physiologic differences, not only are there many difficulties during the treatment period, but complications such as post-traumatic coxa vara, avascular necrosis of the femoral head, and premature epiphyseal closure may occur, sixty-two cases in sixty patients of fractures of the femoral neck in children which were treated at Severance Hospital, Yonsei University College of Medicine from Jan. 1971 to Dec. 1987 and at Young-Dong severance Hospital, Yonsei University college of Medicine from May. 1983 to Dec. 1987 were analyzed both clinically and radiologically. The following results were obtained: l. Of the 62 cases, the ratio of boys to girls was approximately 2:1 and the highest incidence was between 4 to 6 years old. 2. The main cause of fracture was traffic accidents, which occurred in 33 cases(53.2%). 3. According to the classification of Delbet and Colonna, the cervicotrochanteric fracture was the most common type(41.9% of the cases) and 29 cases(46.8%) were displaced fractures. 4. Thirty two cases(51.6%) were treated by conservative treatment and twenty eight cases (45.2%) by closed reduction and internal fixation. 5. Common associated injuries were genito-urinary tract injury, soft tissue injury, long bone fracture and pevic bone fractures. 6. All cases were followed for from 14 months to 15 years, average 8 years. 7. The results were analyzed according to Ratliff's assessment and 41 cases(66.1%) showed good results. 8. The total number of cases with complications was 33(53.2%). The most common complication being coxa vara and premature epiphyseal closure(32.2%). 9. Secondary treatment was done in 7 cases and correction osteotomy was done in 4 cases which had showed a good results. The authors found that for the treatment of type IV fractures, closed reduction followed by plaster of Paris immobilization was adeguate but for type I, II, III after early closed reduction, internal fixation was performed as soon as possible using threaded pins as the internal fixation device. The results were poor in type I and type II, fractures with severe displacement, and in cases in which the treatment was delayed due to associated injury.
Accidents, Traffic ; Calcium Sulfate ; Child ; Classification ; Coxa Vara ; Female ; Femur Neck ; Fractures, Bone ; Fractures, Closed ; Head ; Humans ; Immobilization ; Incidence ; Internal Fixators ; Necrosis ; Osteotomy ; Soft Tissue Injuries ; Violence