No abstract available.
Aneurysm* ; Arteriovenous Fistula* ; Hypertension, Renovascular* ; Renal Artery*

The purposes of this study are to define the scope of occupational health management and to classify occupational management by review of related journals from 1945 to 1994 in Korea. The steps of this study were as follows: (l)Search of secondary reference; (2) Collection and review of primary reference; (3) Survey; and (4) Analysis and discussion. The results were as follows; 1. Most of the respondents majored in occupational health(71.6%), and were working in university (68.3%), males and over the age 40. Seventy percent of the respondents agreed with the idea that classification of occupational health management is necessary, and 10% disagreed. 2. After integration of the idea of respondents, we reclassified the scope of occupational health management. It was defined 3parts, that is, occupational health system, occupational health service and others (such as assessment, epidemiology, cost-effectiveness analysis and so on). 3. The number of journals on occupational health management was 510. It was slightly increased from 1986 and abruptly increased after 1991. The kinds of journals related to occupational health management were The Korean Journal of occupational Medicine(18.2%), several kinds of Medical College Journal(17.0%), The Korean Journal occupational Health(15.l%), The Korean Journal of preventive Medicine(15.l%) and others(34.6%). As for the contents, the number of journals on occupational health management systems was 33(6.5%) and occupational health services 477(93.5%). Of the journals on occupational health management systems, the number of journals on the occupational health resource system was 15(45.5%), occupational finance system 8(24.2%), occupational health management system 6(l8.2%), occupational organization 3(9.1%) and occupational health delivery system l(3.0%). of the journals on occupational health services, the number of journals on disease management was 269(57.2%), health management 116(24.7%), working environmental management 85(18.1%). As for the subjects, the number of journals on general workers was l85(71.l%), followed by women worker, white color workers and so on. 4. Respondents made occupational health service(such as health management, working environmental management and health education) the first priority of occupational health management. Tied for the second are quality analysis(such as education, training and job contents of occupational health manager) and occupational health systems(such as the recommendation of systems of occupational and general disease and occupational health organization). 5. Thirty seven respondents suggested 48 ideas about the future research of occupational health management. The results were as follows: (l) study of occupational health service 40.5%; (2) Study of organization system 27.1%; (3) Study of occupational health system (e.g. information network) 8.3%; (4) Study of working condition 6.2%; and (5) Study of occupational health service analysis 4.2%.
Classification* ; Surveys and Questionnaires ; Disease Management ; Education ; Epidemiology ; Female ; Humans ; Korea* ; Male ; Occupational Health Services ; Occupational Health*

The incidence of fetal cardiac arrhythmia is approximately 1-3%. Sustatined fetal tachyarrhythmia may cause fetal hydrops and rnay lead to fetal death. We experienced a case of fetal atrial flutter without fetal hydrops at 34 weeks of gestation, which was diagnosed by fetal echocardiography. Transplacental fetal therapy with maternal digoxin administration resulted in restoration of normal fetal sinus rhythm. At birth, the infant showed normal electrocardiographic finding with normal Apgar scores.
Arrhythmias, Cardiac ; Atrial Flutter* ; Digoxin ; Echocardiography ; Electrocardiography ; Fetal Death ; Fetal Therapies ; Humans ; Hydrops Fetalis ; Incidence ; Infant ; Mothers* ; Parturition ; Pregnancy ; Tachycardia

Salmonella enteritica serovar Senftenberg is a rare pathogen in osteomyelitis, and is not usually encountered in healthy individuals. Here we report radiological and microbiological findings of a case of Brodie's abscess caused by S. enteritica serovar Senftenberg in the left tibia of an otherwise healthy child.
Abscess ; Child ; Humans ; Osteomyelitis ; Salmonella ; Tibia

No abstract available.
Beclomethasone* ; Budesonide* ; Hydrocortisone*

Toxoplasma gondii is an obligate intracellular protozoan parasite, which invades a wide range of hosts including humans. The exact mechanisms involved in its invasion are not fully understood. This study focused on the roles of Ca2+ in host cell invasion and in T. gondii replication. We examined the invasion and replication of T. gondii pretreated with several calcium modulators, the conoid extrusion of tachyzoites. Calmodulin localization in T. gondii were observed using the immunogold method, and Ca2+ levels in tachyzoites by confocal microscopy. In light microscopic observation, tachyzoites co-treated with A23187 and EGTA showed that host cell invasion and intracellular replication were decreased. The invasion of tachyzoites was slightly inhibited by the Ca2+ channel blockers, bepridil and verapamil, and by the calmodulin antagonist, calmidazolium. We observed that calcium saline containing A23187 induced the extrusion of tachyzoite conoid. By immunoelectron microscopy, gold particles bound to anti-calmodulin or anti-actin mAb, were found to be localized on the anterior portion of tachyzoites. Remarkably reduced intracellular Ca2+ was observed in tachyzoites treated with BAPTA/AM by confocal microscopy. These results suggest that host cell invasion and the intracellular replication of T. gondii tachyzoites are inhibited by the calcium ionophore, A23187, and by the extracellular calcium chelator, EGTA.
Animals ; Calcium/*physiology ; Calcium Channel Blockers/pharmacology ; Calmodulin/antagonists & inhibitors ; Chelating Agents/pharmacology ; Hela Cells ; Host-Parasite Relations ; Humans ; Ionophores/pharmacology ; Research Support, Non-U.S. Gov't ; Toxoplasma/drug effects/pathogenicity/*physiology

BACKGROUND: Although the same treatment strategy has been applied for patients with aortic intramural hematoma (AIH) as typical aortic dissection (AD), the natural history of AIH with medical treatment is not known clearly. The purposes of this study were to test the hypothesis that absence of direct flow communication through intimal tear in AIH has different impact on clinical course compared with typical AD and to clarify the natural history of AIH. METHODS: Total 181 patients of acute aortic pathology (AD / AIH =57 / 124) were enrolled from 5 institutions. Patients received medical treatment without surgical intervention regardless of the affected site in acute stage, and follow-up imaging studies (FUIS) were performed in 105 patients with AIH. Clinical data of these patients were retrospectively analyzed. RESULTS: Fifty-four patients showed involvement of the ascending aorta (AD / AIH =13 / 41) and 127 revealed distal pathology (AD / AIH =44 / 83). Compared to the patients with AD, those with AIH were older regardless of the type and showed higher incidence of pleural effusion and mediastinal hemorrhage. In-hospital mortality of proximal AIH was 7 %, which was significantly lower than that of proximal AD (62 %); mortality of distal AIH was also lower than that of distal AD (1.2 Vs 9 %, p < 0.05). In proximal AIH, FUIS confirmed resorption of AIH in 67 %(24/36) and development of AD in 25 %(9/36). In distal AIH, resorption was confirmed in 78 %(54/69) and development of AD in 16 %(11/69). CONCLUSIONS: Patients with AIH showed excellent clinical course and high rate of resorption with medical treatment regardless of the affected site; typical AD developed only in limited cases. Absence of direct flow communication through intimal tear in AIH might explain more favorable response to medical treatment than typical AD.
Aorta ; Follow-Up Studies* ; Hematoma* ; Hemorrhage ; Hospital Mortality ; Humans ; Incidence ; Mortality ; Natural History ; Pathology ; Pleural Effusion ; Retrospective Studies

No abstract available.
Arteries* ; Infarction* ; Spinal Cord Vascular Diseases ; Spinal Cord*

BACKGROUND: Advanced glycation end products (AGE) are independent risk factors in the development and progression of diabetic nephropathy. Receptor for AGE(RAGE) is considered the main receptor involved in AGE-induced cell activation. Galectin-3, another AGE receptor, has recently been found upregulated in mesangial cells(MC) cultured under high glucose and in diabetic rat kidneys. N epsilon(carboxymethyl)lysine(CML) is a well characterized AGE but its role in MC activation is unknown. The present study examined the effects of CML on MC proliferation and extracellular matrix(ECM) secretion. METHODS: Synchronized rat MC were stimulated with different concentrations of CML-bovine serum albumin(BSA), control BSA, and transforming growth factor-beta(TGF-beta) for up to 72 hours. Cell proliferation was measured by [3H]-thymidine incorporation. Fibronectin, TGF-beta, plasminogen activator inhibitor(PAI)-1 secreted into the media and RAGE and galectin-3 expression in MC were measured by Western blot analysis and ELISA. RESULTS: 1,000 micro /mL of CML-BSA decreased [3H]-thymidine incorporation by MC at 48 hours and 10 ng/mL TGF-beta at 24 and 48 hours. CML-BSA 100 and 1,000 micro /mL, control BSA 1,000 micro /mL, and TGF-beta 10 ng/mL increased fibronectin secretion at 48 hours. CML-BSA up to 1,000 micro /mL did not affect TGF-beta or PAI-1 secretion. TGF-beta 10 ng/mL, however, significantly increased PAI-1 secretion. Cultured MC expressed both RAGE and galectin-3. CML-BSA 100 micro /mL upregulated galectin-3 expression. CONCLUSION: CML-BSA decreased MC proliferation and increased fibronectin secretion, suggesting that CML may lead to ECM accumulation and glomerulosclerosis in diabetic animals. MC express RAGE and galectin-3 constitutively and CML-induced galectin-3 upregulation may have a role in AGE-induced MC activation.
Animals ; Blotting, Western ; Cell Proliferation ; Diabetic Nephropathies ; Enzyme-Linked Immunosorbent Assay ; Fibronectins ; Galectin 3 ; Glucose ; Glycosylation End Products, Advanced ; Kidney ; Mesangial Cells* ; Plasminogen Activator Inhibitor 1 ; Plasminogen Activators ; Rage ; Rats ; Risk Factors ; Transforming Growth Factor beta ; Up-Regulation ; Advanced Glycosylation End Product-Specific Receptor

Neuregulin-1 (NRG1) plays important roles in the development and plasticity of the brain, and has also been reported to exhibit potent neuroprotective properties. Although ErbB4, a key NRG1 receptor, is expressed in multiple regions in the adult animal brain, little is known about its role in Alzheimer's disease (AD). AD is characterized by progressive impairment of cognition and behavioral disturbance that strongly correlate with degeneration and death of neurons in the cerebral cortex and limbic brain areas, such as the hippocampus and the amygdala. Here, we show that the ErbB4 and phospho-ErbB4 immunoreactivities were higher intensity in the neurons of the CA1-2 transitional field of AD brains as compared to age-matched controls. Also, ErbB4 expression was increased in the neurons of the cortico medial nucleus amygdala, human basal forebrain and superior frontal gyrus of AD brains. In cerebral cortex and hippocampus of amyloid precursor protein/presenilin 1 double transgenic mice, ErbB4 immunoreactivity significantly increased in comparison to age-matched wild type control. These results suggest that up-regulating of ErbB4 immunoreactivity may involve in the progression of pathology of AD.
Adult ; Alzheimer Disease ; Amygdala ; Amyloid ; Animals ; Brain ; Cerebral Cortex ; Cognition ; Hippocampus ; Humans ; Mice ; Mice, Transgenic ; Neuregulin-1 ; Neurons ; Plastics ; Prosencephalon