BACKGROUND: Endocrine pancreas tumor is a rare disease which incidence is less than 2% of all pancreatic tumors. But it comprises various types of tumor and usually secretes several hormones from one type of tumor although the patient with this tumor complains of sole symptom associated with only one hormone. The mechanism and clinical significance of multiple hormone secretion in the endocrine pancreas tumom are not yet clearly defined. METHODS: We analyzed retrospectively the clinicopathologic features of 20 cases which were operated at Seoul National University Hospital during the period between February 1989 and May 1998. RESULTS: The most common tumor was insulinoma (13 cases) and the second most common tumor was nonfunctioning tumor (6 cases). There was one case of somatostatinoma. Most of the patients with insulinoma complained of neuroglycopenic symptoms. There were 9 cases (45.0%) in which the tumors secreted more than two kinds of hormones, 7 cases in insulinoma, 2 cases in nonfunctioning tumors. Whether the tumor secreted multiple hormones was detected by the method of immunohistochemical staining. Though the tumors secreted more than two kinds of hormones, the patients with the tumors complained of symptoms which were associated with the cell type most strongly stained by immunohistochemical method. Whether or not the tumors secreted multiple hormones was not associated with the pathologic features such as tumor size, histologic patterns of the tumor, status of tumor cell differentiation and malignancy. CONCLUSION: From this results, we suggest that endocrine tumors of the pancreas secreted multiple hormones not by the mechanism of dedifferentiation from already differentiated endocrine cells but by the mechanism of neogenesis of multipotent islet stem cells. Since the relationship between the function of multiple hormone secretion in the endocrine pancreas tumors and islet stem cell would be significant, further study should be needed to find out the function of stem cells and application of stem cells to clinical use.
Cell Differentiation ; Endocrine Cells ; Humans ; Incidence ; Insulinoma ; Islets of Langerhans ; Pancreas* ; Rare Diseases ; Retrospective Studies ; Seoul ; Somatostatinoma ; Stem Cells

Molluscum contagiosum is a common, benign, viral disease of the skin and mucous membrane that generally affects children. This disease is characterized by a 2 to 7 week incubation period; the involvement of the face, trunk, and extremities; spontaneous resolution within 2 to 4 months; and common autoinoculation. Individuals are susceptibile from the age of one. Herein, we report a case of molluscum contagiosum with an unusual manifestation. The skin lesions, which occured at ten days postpartum, showed two adjacent hard papules on the posterior scalp. They remained for 8 months in the same size and number.
Child ; Extremities ; Humans ; Infant, Newborn* ; Molluscum Contagiosum* ; Mucous Membrane ; Postpartum Period ; Scalp ; Skin ; Virus Diseases

Koreans rarely complain of depression or other psychological problems because mental illness is viewed as a stigmatizing and threatening experience. This study examined the relationships among stressful life events, close relationships, self-esteem, and depression in 400 college women aged 18 to 30 years. Depression was positively related to stressful life events(r=.21 p=<.01). Depression and stressful life events were negatively associated with self-esteem(r=-.67: r=-.11, p<.01; p<.05 respectively). Close relationships with women and men friends were each negatively associated with depression (r=-.24; r=-.16, p<.05). Close relationships with women and men friends were positively associated with self-esteem (r=.23; r=.20, p<.01). Forty nine percent of variance in depression rates in this sample was explained. After adjustment for degrees of freedom, a total of 49% of the variance in depression was explained by self-esteem and stressful life event. This investigation into the relationships among the variables influencing depression for college women is a critical issue as health professional interventions are those designed for specific populations to meet unique care needs and since young Korean women may be at considerable risk for depression.
Depression* ; Female ; Freedom ; Friends ; Health Occupations ; Humans ; Male

No abstract available.
Leukemia* ; Leukemia, Megakaryoblastic, Acute*

No abstract available.
Child* ; Femoral Fractures* ; Humans

No abstract available.
Escherichia coli* ; Escherichia* ; Urinary Tract Infections* ; Urinary Tract*

The toxic action of benzene on erythropoiesis and myelopciesis, has been recognized since the early years of the present century. With the advance in high civilization and modern covenience, benzene as a kind of aromatic compound has been used for industrial solvent and its longstanding use has committed a public nuisance to be overcome by medical approach. Chromosomal breakage and rearrangement may be produced by radiation, radiomimetics, virus infection and various chemicals, especially, antibiotics and antitumor agent, causing chroimosomal rearrangement in vitro, whose teratogenic action in rats was previously demonstrated. Several works hsve been published on the chromosome damage as a consequence of benzene intoxication. Recently, it was shown by certain workers that individuals who had been exposed to atmospheric benzene, even without haematological disorders, might have an elevated percentage of structural chromosome aberrations in the lymphocytes cultured from their peripheral blood. Moreover, structural and numerical chromosome aberrations were demons trated in patients with blood disorders which were believed to be due to exposure to beuzene vapors. Accordingly, much interest has been paid to its cytologic effect on the hematopoietic tissues in man and experimental animals. A high incidence of chromosomal aberrations has also been found in rabbits exposed to benzene during a period of peripheral pancytopenia and after hematologic recovery. The significance of these findings was discussed in relation to leukemic transition and to their diagnostic value in human benzene intoxication. Chromosomal anomalies can also be induced by benzene given subcutaneously to rata. A pronounced individual variation of the degree of chromosome damage was shown. The purpose of this investigation was to determine whether benzene could a direct effect on the chromosome complement of mammalian bone marrow cells in vivo and whether characteristic banding patterns might be demonstrated in rat chomosomes by a modified trypsin-Giemsa method. Four-week old Sprague-Dawley strain rats of both sexes(each weighing about 50gm) were used for this experimental study. Three groups of animals were treated-with subcutaneous infections of pure benzene. Group I received benzene, 2.0ml per kg body weight, 24 hours before sacrifice; Group II, 48 and 24 hours and Group III, 72, 48 and 24 hours. A control group was given no treatment. The animais were sacrificed in ether anesthesia. Femur and iliac bone marrow cells were suspended in medium 199 within 30 minutes and transferred to warm Hanks-distilled water(1:3) for hypotonic treatment(10 minutes). A freshly prepared solution of methanol glacial acetic acid (3:1) was used as fixative. Finally, a few drops of the cell suspension were placed on moistened, pre-cleaned slides being dried by rapid-drying technique. The slides were stained with either simple Giemsa or trypsin Giemsa banding technique. From the data obtained, this report was summarized as follows: 1. For the benzene-treated groups, chromosomal aberration rate was 13.4% in group II and 38.6% in group III, while in the controls the rate was 6.4 percent. 2. Numerical aberrations included aneuploidy, polyploidy and monoploidy. The most frequent type was hypodiploidy (5.8–9.4%) in all the treated groups. 3. Structural aberrations could be divided in gaps, ring chromosomes, breaks, deletions, exchanges and dicentrics. Among those, the majority of abnormal metaphases was gaps; 2.4%, 2.2% and 10.8% in group I, II and III respectively, and 1. 6% in control group. 4. The translocations and dicentrics were not demonstated in group I and II. 5. The normal chromosome set of the Sprague-Dawley rat was comprised of 42 chromosomes: 20 pairs of autosomes, and one pair of sex chromosomes, xx or XY chromosomes. The total number of major bands in s chromosome complement was about 40 and minor bands, 13, 6. Sucessful demonstration of banding patterns was available by proper adjustment of the concentration, temperature and duration of trypsin solution.
Acetic Acid ; Anesthesia ; Aneuploidy ; Animals ; Anti-Bacterial Agents ; Benzene ; Body Weight ; Bone Marrow Cells ; Bone Marrow ; Chromosome Aberrations ; Chromosome Breakage ; Civilization ; Complement System Proteins ; Erythropoiesis ; Ether ; Femur ; Humans ; In Vitro Techniques ; Incidence ; Lymphocytes ; Methanol ; Methods ; Pancytopenia ; Polyploidy ; Rabbits ; Rats ; Rats, Sprague-Dawley ; Ring Chromosomes ; Sex Chromosomes ; Trypsin

BACKGROUND: As a result of exposure to human leukocyte antigen(HLA) by pregnancy, blood transfusion and previous organ transplantation, many patients awaiting renal transplantation can develop HLA antibodies. The level of HLA sensitization is determined by PRA(panel reactive antibody) test using a lymphocyte panel from HLA phenotyped selected donors. In Korea, PRA tests have not been performed routinely for organ transplantations. and there is no available data about HLA sensitization in renal transplantation. METHODS: PRA test was done in 136 sera of chronic renal failure(CRF) patients receiving dialysis (hemodialysis 108, peritoneal dialysis 28) by NIH standard microlymphocytotoxicity method with a frozen lymphocytes panel from 36 HLA-typed donors. PRA positive sera were re-tested after dithiothreitol(DTT) treatment and analyzed for HLA antibody specificities. RESULTS: Thirty five out of 136 sera(25.7%) showed positive PRA values in HLA antibody screening test. The PRA(%) values of the 35 positive sera were distributed into 1-10%(n=8), 10-20%(n=7), 20-50%(n=12) and 50%-100%(n=8). respectively. After DTT treatment, the change of PRA reactivity was divided into three groups. The PRA values of Group A(22 sera: 63%) showed no change, Group B(7 sera: 20%) declined, and Group C(6 sera. 17%) completely disappeared after DTT treatment. The specificities of HLA antibodies were identified in 19 out of 35 sera(54%). The success rate in defining antibody specificities was 0 at PRA values of 1-10% and 70-100%, and high at PRA values of 20-70%. CONCLUSION: We observed that about a quarter of CRF patients have developed HLA antibodies of immunoglobulin class-IgG, mixed IgG and IgM, and IgM HLA antibody in decreasing order of frequency.
Antibodies ; Antibody Specificity ; Blood Transfusion ; Dialysis ; Humans ; Immunoglobulin G ; Immunoglobulin M ; Immunoglobulins ; Isoantibodies* ; Kidney Failure, Chronic* ; Kidney Transplantation ; Korea ; Leukocytes ; Lymphocytes ; Mass Screening ; Organ Transplantation ; Peritoneal Dialysis ; Pregnancy ; Tissue Donors ; Transplants

When bronchogenic carcinoma is coexisting with pulmonary tuberculosis, it is difficult to differentiate bronchogenic carcinoma from pulmonary tuberculosis radiologically. Thus, the object of this study is to define differential diagnosis of bronchogenic carcinoma by computed tomography. We analized CT scans of 27 patients with radiologic findings of pulmonary tuberculosis and mass of which twelve cases were pulmonary tuberculosis and fifteen cases were primary lung cancer. The location of parenchymal infiltration and the mass was the same in 60%(9/15) of the primary lung cancer in cases and 83%(10/12) of the pulmonary tuberculosis cases. The common location of the mass was the both upper lobes in 92%(11/12) of the pulmonary tuberculosis cases and 53%(8/15) of the primary lung cancer cases. The common locations of the mediastinal lymphadenopathy were 4R, 2R of the pulmonary tuberculosis cases and 4R, 10R of the primary lung cancer cases. In the feature of post enhanced lymph nodes, homogenous increased density was more frequent in primary lung cancer. Measurements of the maximum thickness part of the cavity wall was not a reliable indication of malignancy.
Carcinoma, Bronchogenic ; Diagnosis* ; Diagnosis, Differential ; Humans ; Lung Neoplasms* ; Lung* ; Lymph Nodes ; Lymphatic Diseases ; Tomography, X-Ray Computed ; Tuberculosis, Pulmonary*

BACKGROUND: When one of family members must be treated, the others are required to get various forms of changes including modification of their proper roles in the family. Particularily when he or she can not perform his or her activities of daily living(ADL) owing to functional impairment by himself or herself, there seems to be greater dependence upon his or her family. Accordingly, we tried to give help in the treatment of patients through the comparative analysis concerning functional impairment in both groups on the assumption that there is difference of family function between two family groups which have a patient in family, or not. METHODS: This study was carried out to 83 inpatients in Sun Hospital in Dae Jeon and local rehabilitation clinics in Iksan from 1. July. 1995 to 31. Jun. 1996. We evaluated activites of daily living by using modified Barthel Index(MBI) and classified them into dependent group with 60 points or less(6roup I ), and independent group with more than 60 points(Group II). We also used Family APGAR score and FACES III to evaluate their family functions. RESULTS: MBI scores to evaluate ADL were 42.9+/-15.6 in Group I and 82.1+/-17.9 in Group II. Family APGAR scores were 6.93+/-2.52 in Group I and 7.24+/-17.9 in Group II but there was no significance between two groups. Types of family according to Family APGAR score were highly functional, morderate dysfunctional, and severly dysfunctional one in order of frequency in both groups, but there was no significance in their frequencies in both groups. Types of Family in view of cohesion was disengaged, separated, connected, and enmeshed one in order of frequency in Group I, and separated, disengaged, connected, and enmeshed one in order of frequency in Group II but there was no significance between two groups. Types of family in view of adaptability were rigid, chaotic structured,and flexible one in order of frequency in Group I, and were flexible, structured, rigid, and chaotic one in orders in Group II, which showed significance between two groups. Extremal types of family structure were large in numbers in Group I, but it didnt show significance. CONCLUSIONS: Assuming that there were large numbers of rigid and chaotic family in Group I, it is considered that tne family which has a patient with severely impaired function seems to have weaker adaptability to their family stresses than otherwise. Therefore, it is desirable that physicians who take charge of such patients provide continuous and comprehensive medical care for them including their family with greater concerns and through analysis and assessment of their family functions.
Activities of Daily Living ; Apgar Score ; Daejeon ; Humans ; Inpatients* ; Jeollabuk-do ; Rehabilitation* ; Solar System