PURPOSE: The aim of this study was to identify the roles, duties and tasks of elementary health teachers. Required knowledge, skills, and worker behaviors were also examined. METHODS: Elementary health teachers' jobs were analyzed by DACUM workshop. First, the health teachers' roles and related jobs were described, and then the jobs were divided into duties and subordinate tasks. The identified roles, duties and tasks were reviewed and refined, and then were organized in a DACUM chart. DACUM committee members discussed not only general knowledge, skills and work behaviors but also future trends and concerns. RESULTS: The DACUM chart for elementary health teachers consisted of 8 duties and 52 tasks. Required knowledge, skills and worker behaviors were also listed. CONCLUSION: Elementary health teachers play roles as health manager, health care provider, and teacher in school. Their roles, duties and tasks are being changed. Thus, their jobs need to be redefined legally, politically, and institutionally.
Committee Membership ; Education ; Health Personnel ; Humans ; Job Description ; School Health Services ; Task Performance and Analysis

From June 1990 to December 1998, 792 kidney transplantations were performed at Asan Medical Center. 436 cases(55M) were from living-related donors, 139 cases(17.6%) were from living-unrelated donors and 217 cases(27.4%) were from cadaveric donors. The results of the trasnplantation were analyzed according to the various factors known to influence the outcome of transplantation. In living transplants, the overall patients survival rate was 98.2% at 1 year and 95.8% at 5 years, the corres-ponding allograft survival rate was 96.9 and 86.1N. In cadaveric transplants, the overall patients survival rate was 94.3% at 1 year and 94.3% at 5 years, the corresponding allograft survival rate was was 90.296 and 84.8%. In living transplants, donor age(>50yrs), recipient age(>50yrs), ABO compatability, pretrans-plant blood transfusion, diabetic history had no effect on allograft survival rate. But HLA DR cornpa-tability, serum creatinine(2.5mg/dL) at discharge and rejection history had effect on allograft survival(p<0.05). In living-related transplants, 5 year allograft survival rate was 100% at HLA identical group and 86% at HLA haplomatched group. But the statistical significance was not found(p=0.052). In cadaveric transplants, donor age(>50yrs), recipient age(>50yrs), ABO compatability, HLA DR match, diabetic history, pretransplant transfusion had no effect on allograft survival. But serum creatinine at discharge(>2.5mg/dL) and posttransplant rejection had effect on allograft survival.
Allografts ; Blood Transfusion ; Cadaver ; Chungcheongnam-do* ; Creatinine ; Humans ; Kidney Transplantation ; Survival Rate ; Tissue Donors

PURPOSE: Breast-feeding is recommended to prevent allergies, particularly in high-risk infants, but the evidence of protective effects that breast-feeding has on food allergy (FA) remains elusive. The aim of this study was to investigate risk factors of FA and the association between breast-feeding and FA symptoms/food sensitization (FS) in children with atopic dermatitis under 2 years of age. METHODS: We reviewed the medical records of 384 children with atopic dermatitis under 2 years of age who visited our pediatric allergy clinic from March 1, 2009 through December 31, 2014. Symptoms of FA, feeding type, and family history of allergic disease were assessed. Laboratory tests were conducted, including serum total IgE, eosinophil (%), serum 25-hydroxyvitamin D, and specific IgE to egg white, milk, soy, peanut, and wheat. RESULTS: Subjects were divided into 3 groups based on FA symptoms and evidence of sensitization: The FA symptom group (n=240), no symptom group (n=53) and no FS group (n=91). The FA symptom group had a higher log total IgE level (2.0 vs. 1.3, P<0.001) and eosinophil (%) (7.0% vs. 4.7%, P=0.001) than the no FA symptom group. In multivariate analysis, breast-feeding was associated with FS (adjusted odds ratio [aOR], 2.43; 95% confidence intervals [CI], 1.03-5.74) but was not associated with FA symptoms (aOR, 0.65; 95% CI, 0.23-1.83). CONCLUSION: Breast-feeding may increase the risk of FS, but not immediate-type FA symptoms in children with atopic dermatitis.
Arachis ; Breast Feeding* ; Child* ; Dermatitis, Atopic* ; Egg White ; Eosinophils ; Food Hypersensitivity* ; Humans ; Hypersensitivity ; Immunoglobulin E ; Infant ; Medical Records ; Multivariate Analysis ; Odds Ratio ; Risk Factors ; Soy Milk ; Triticum

BACKGROUNDS/AIMS: Tumor recurrence is very common after hepatic resection of hepatocellular carcinoma (HCC) > or =10 cm. The purpose of this study was to validate the prognostic significance of the preoperative alkaline phosphatase (ALP) level and early intrahepatic metastasis in HCC patients who underwent resection of large HCC. METHODS: Clinical data of 100 large HCC patients who underwent liver resection were retrospectively reviewed. All of them underwent protocol transarterial chemoinfusion (TACI) at 1 month. RESULTS: Median tumor diameter was 13.8 cm, and 94% were single lesions. Systematic and non-systematic resections were performed in 91% and 9%, respectively, with R0 resection achieved in 84%. Overall 1-, 3- and 5-year survival rates were 76%, 38.5%, and 30.4%, respectively. Univariate analyses on patient survival revealed that intrahepatic metastasis on 1-month protocol TACI was the only significant risk factor (p=0.002). Mean ALP values according to the intrahepatic metastasis on 1-month protocol TACI were 124.6+/-76.9 IU/L and 145.1+/-92.6 IU/L, which did not show a statistical difference (p=0.23). CONCLUSIONS: In patients with large HCC, 1-month protocol TACI combined with hepatic resection may contribute to the early detection and timely treatment of potentially preexisting metastatic lesions.
Alkaline Phosphatase ; Carcinoma, Hepatocellular* ; Humans ; Liver ; Neoplasm Metastasis* ; Recurrence ; Retrospective Studies ; Risk Factors ; Survival Rate

Helicobacter pylori is a causative agent of type B gastritis and plays a central role in the pathogenesis of gastroduodenal ulcers and gastric cancer. Strategies for the control of H. pylori- induced gastroduodenal diseases based on conventional measures are still of limited utility. Therefore, it seems worthwhile to make a break-through as an alternative strategy by reviewing the host-parasite relationship of H. pylori infection on the basis of genomic structure. In this study, we tried to construct a physical map of H. pylori genome. Chromosomal DNA from a Korean prototype strain, H. pylori 51 was digested with 42 restriction endonucleases to identify restriction patterns suitable for mapping the genome. We identified three enzymes, ApaI, NotI and Sfil, which gave a small number of DNA fragments of higher molecular weight that were well resolved after pulsed-field gel electrophoresis. The H. pylori chromosome contained 7 ApaI fragments ranging from 167 to 311 kb, 7 NotI fragments ranging from 5 to 516 kb and 2 SfiI fragments of 332 and 1,347 kb in size. The genome size of the strain is 1,679 kb. A circular physical map of the H. pylori chromosome was constructed by aligning 3 kinds of restriction fragments by Southern blot analysis of simple ApaI, NotI and SfiI digests or double NotI/ApaI and NotI/SfiI digests with the various probes. When the physical map of H. pylori strain 51 compared with that of strain 26695 of which the cornplete genome sequence was reported, completely different restriction patterns were shown, which suggests the genomic diversity in H. pylori.
Blotting, Southern ; DNA ; DNA Restriction Enzymes ; Electrophoresis, Gel, Pulsed-Field ; Gastritis ; Genome ; Genome Size ; Helicobacter pylori* ; Helicobacter* ; Host-Parasite Interactions ; Molecular Weight ; Peptic Ulcer ; Stomach Neoplasms

Arsenic trioxide (As2O3) has been found to be remarkably effective in the treatment of patients with acute promyelocytic leukemia (APL). Although evidences for the proapoptotic activity of As2O3 have been suggested in leukemic and other solid cancer cells, the nature of intracellular mechanisms is far from clear. In the present study, we investigated As2O3 affect on the stress-responsive signaling pathways and pretreatment with antioxidants using HepG2 cells. When treated with micromolar concentrations of As2O3, HepG2 cells became highly apoptotic paralleled with activation of caspase-3 and members of mitogen-activated protein kinases (MAPKs) including extracellular signal-regulated kinase (ERK) and c-jun NH2-terminal kinase (JNK) but not p38 MAP kinase. However, inhibition of each kinase activity failed to inhibit apoptosis by As2O3. Addition of n-acetyl cysteine (NAC) or diphenyleneiodonium (DPI) effectively protected cells from apoptosis and significantly lowered As2O3-induced activation of caspase-3. However, neither NAC nor DPI was able to effect ERK or JNK activation induced by As2O3. Guanidinoethyldisulfide dihydrochloride (GED) and 2-ethyl- 2-thiopseudourea (ETU), known inhibitors of the inducible nitric oxide synthase (iNOS), also suppressed the apoptotic activity of As2O3. These results suggest that As2O3 induces caspase-mediated apoptosis involving a mechanism generating oxidative stress. However, activation of some stress- responsive signaling pathways by As2O3 may not be the major determinant in the course of apoptotic processes.
Antioxidants/administration & dosage/pharmacology ; Apoptosis/*drug effects ; Arsenicals/administration & dosage/*pharmacology ; Cell Line, Tumor ; Dose-Response Relationship, Drug ; Enzyme Activation/drug effects ; Enzyme Inhibitors/*pharmacology ; Human ; Nitric-Oxide Synthase/*antagonists & inhibitors/metabolism ; *Oxidative Stress/drug effects ; Oxides/administration & dosage/*pharmacology ; *Signal Transduction/drug effects

BACKGROUNDS/AIMS: Standard liver volume (SLV) is an important parameter that has been used as a reference value to estimate the graft matching in living donor liver transplantation (LDLT). This study aimed to determine a reliable SLV formula for Korean adult patients as compared with the 15 SLV formulae from other studies and further estimate SLV formula by gender and body mass index (BMI). METHODS: Computed tomography liver volumetry was performed in 1,000 living donors for LDLT and regression formulae for SLV was calculated. Individual donor data were applied to the 15 previously published SLV formulae, as compared with the SLV formula derived in this study. Analysis for confounding variables of BMI and gender was also performed. RESULTS: Two formulae, "SLV (ml)=908.204xBSA-464.728" with DuBois body surface area (BSA) formula and "SLV (ml)=893.485xBSA-439.169" with Monsteller BSA formula, were derived by using the profiles of the 1,000 living donors included in the study. Comparison with other 15 other formulae, all except for Chouker formula showed the mean volume percentage errors of 4.8-5.4%. The gender showed no significant effect on total liver volume (TLV), but there was a significant increase in TLV as BMI increased. CONCLUSIONS: Our study suggested that most SLV formulae showed a crudely applicable range of SLV estimation for Korean adults. Considering the volume error in estimating SLV, further SLV studies with larger population from multiple centers should be performed to enhance its predictability. Our results suggested that classifying SLV formulae by BMI and gender is unnecessary.
Adult* ; Body Mass Index ; Body Surface Area ; Confounding Factors (Epidemiology)* ; Humans ; Liver Transplantation ; Liver* ; Living Donors ; Reference Values ; Tissue Donors ; Transplants

Cavernous transformation of the portal vein is a rare condition probably arising secondary to extrahepatic portal vein thrombosis or obstruction with recannalization and/or collateral veins formation to bypass the obstruction. It is believed that cavernous transformation of the portal vein is caused by a variety of diseases associated with periportal collateral development and hepatopedal flow. It is known that portal vein occlusion, which is the actual cause of cavernous transformation, has a wide variety of etiologies, such as congenital abnormalities, omphalitis, pancreatitis, various carcinoma, and liver cirrhosis. In most cases, the revealing symptom is upper gastrointestinal bleeding. Rarely, however, diagnosis is made from obstructive jaundice. Extensive collateral veins due to portal vein occlusion may compress and narrow the biliary tract. A 39-year-old man was admitted due to jaundice and abdominal discomfort for 1 month. He was confirmed to have obstructive jaundice due to collateral vessels of cavernous transformation of the portal vein. We report a case of obstructive jaundice caused by cavernous transformation of the portal vein.
Adult ; Biliary Tract ; Congenital Abnormalities ; Diagnosis ; Hemorrhage ; Humans ; Jaundice ; Jaundice, Obstructive* ; Liver Cirrhosis ; Pancreatitis ; Portal Vein* ; Veins ; Venous Thrombosis

Overexpression of cyclooxygenase-2 (COX-2) has been associated with hepatocarcinogenesis. Inhibitors of COX-2 have proapoptotic and antiproliferative effects on malignant tumors and inhibit tumor invasion to the surrounding tissues. We report here a case of complete regression of advanced hepatocellular carcinoma (HCC) during COX-2 inhibitor administration. An eighty-year-old female was diagnosed as an advanced HCC, which was associated with HCV infection. She received COX-2 inhibitor for 3 months due to degenerative arthritis of both knees. Tumor enhancement on arterial phase CT completely disappeared without specific treatment for the HCC, and the tumor size decreased on the follow-up CT scan.
Aged, 80 and over ; Antineoplastic Combined Chemotherapy Protocols/*therapeutic use ; Carcinoma, Hepatocellular/*drug therapy ; Cyclooxygenase 2 Inhibitors/administration & dosage/*therapeutic use ; Diclofenac/administration & dosage/analogs & derivatives/therapeutic use ; Female ; Humans ; Lactones/administration & dosage/therapeutic use ; Liver Neoplasms/*drug therapy ; Pyrazoles/administration & dosage/therapeutic use ; Sulfonamides/administration & dosage/therapeutic use ; Sulfones/administration & dosage/therapeutic use

BACKGROUND/AIMS: Distinguishing benign and malignant lymph nodes by the findings of endoscopic ultrasonography (EUS) is still controversial. We tried to evaluate EUS findings of benign mediastinal and abdominal lymphadenopathy (BLAP) confirmed by EUS-guided fine needle aspiration (FNA). METHODS: A total of 37 patients with enlarged mediastinal or abdominal lymph nodes (diameter > or =1 cm) were enrolled and EUS-FNA was performed. Final diagnosis was based on FNA cytology and follow up imaging studies (CT scans or EUS). RESULTS: Thirteen patients were confirmed to have BLAP by EUS-FNA. Causes of BLAP were as follows; (i) extrapulmonary tuberculosis in six cases including patients with postoperative states due to cervical cancer and advanced gastric cancer, (ii) Kikuchi disease in one case, (iii) hypereosinophilic syndrome in one case, (iv) reactive hyperplasia in five cases including patients with postoperative states due to thyroid cancer, lung cancer, and EGC with ESD. EUS findings of BLAP revealed that median lymph node size was 24.7 mm. Lymph nodes were oval or round shaped in 9 cases, sharp borders in 9 cases, hypoechoic echo pattern in 7 cases, heterogenous internal echo pattern in 7 cases. Other findings included internal septation, calcification, multiplicity, attachment to the gastrointestinal tract wall, and conglomeration. CONCLUSIONS: EUS findings of BLAP were not different from those of malignant lymphadenopathy previously reported in other studies.
Biopsy, Fine-Needle* ; Diagnosis ; Endoscopic Ultrasound-Guided Fine Needle Aspiration ; Endosonography ; Follow-Up Studies ; Gastrointestinal Tract ; Histiocytic Necrotizing Lymphadenitis ; Humans ; Hypereosinophilic Syndrome ; Hyperplasia ; Lung Neoplasms ; Lymph Nodes ; Lymphatic Diseases* ; Stomach Neoplasms ; Thyroid Neoplasms ; Tuberculosis ; Uterine Cervical Neoplasms