No abstract available.
Animals ; Mice ; Mice, Knockout* ; Natural Killer T-Cells* ; Thymus Gland*

No abstract available.

Chronic subdural hematoma usually occurs as a consequence of minor trauma. But, chronic subdural hematoma of occupational origin has not been reported yet in Korea. We experienced a case of chronic subdural hematoma induced by repeated trauma to the head. The patient was a 45-year-old male. He complained of repeated headache and nausea. By the computed tomogram, he diagnosed as chronic subdural hematoma and took the operation. He was not an alcoholism and had no intracranial disease nor coagulopathy. We studied all possibilities through working environment and personal environment survey. As a result, we decided the case as an example of cumulative trauma disorder to the head by occupational origin. We report a case of chronic subdural hematoma in the worker exposed repeated head trauma of occupational origin.
Alcoholism ; Craniocerebral Trauma ; Cumulative Trauma Disorders ; Head* ; Headache ; Hematoma, Subdural, Chronic* ; Humans ; Korea ; Male ; Middle Aged ; Nausea

BACKGROUND: The appearance of multiple-drug-resistant Mycobacterium tuberculosis strains has been seriously compromising successful control of tuberculosis. Rifampin-resistance, caused by mutations in the rpoB gene, can be indicative of multiple-drug-resistance, and its detection is of great importance. The present study aimed to develop an oligonucleotide chip for accurate and convenient screening of drug-resistance. METHODS: In order to detect point mutations in the rpoB gene, an oligonucleotide chip was prepared by immobilizing specific probe DNA to a microscopic slide glass by a chemical reaction. The probe DNA that was selected from the 81 bp core region of the rpoB gene was designed to have mutation sites at the center. A total of 17 mutant probes related to rifampin-resistance including 8 rifabutin-sensitive mutant probes were used in this study. For accurate determination, wild type probes were prepared for each mutation position with an equal length, which enabled a direct comparison of the hybridization intensities between the mutant and wild type. RESULTS: Mycobacterial genomic DNA from clinical samples was tested with the oligonucleotide chip and the results were compared with those of the drug-susceptibility test in addition to sequencing and INNO-LiPA Rif. TB kit test in some cases. Out of 15 samples, the oligonucleotide chip results of 13 samples showed good agreement with the rifabutin-sensitivity results. The two samples with conflicting result also showed a discrepancy between the other tests, suggesting such possibilities as existence of mixed strains and difference in drug-sensitivity. Further verification of these samples in addition to more case studies are required before the final evaluation of the oligonucleotide chip can be made. CONCLUSION: An oligonucleotide chip was developed for the detection of rpoB gene mutations related to drug-susceptibility. The results to date show the potential for using the oligonucleotide chip for accurate and convenient screening of drug-resistance to provide useful information in antituberculosis drug therapy.
DNA ; Drug Therapy ; Glass ; Mass Screening ; Mycobacterium tuberculosis* ; Mycobacterium* ; Point Mutation* ; Rifabutin ; Rifampin ; Tuberculosis

This dealt with the 23 cases of giant cell tumor of femur and tibia who were treated with curettage and cementation of the lesion, over 14 year period. Cement by virtue of it's heat of polymerization may “sterilize” the wall upto 3-5mm in depth. Authors adoped cement treatment as an effective adjuvant after intra-lesional surgery(curettage). Curettage was indicated in all stage I lesions; most stage 2 and some stage 3 lesions, provided the residual bone stock were sufficient to make it oncologically and mechanically effective. The follow-up period ranged from 3 to 14 years(oaverage 8 years and 6 months). The sites of the lesions were proximal tibia in 8, dital femur in 13, proximal femur in one, and distal tibia in one. Among these cases, 3(13.0%) cases(two grade 1 and one grade 2) of stage II(To: active), and 2(8.7%) of stage III(grade 2) (Tl or T2: aggressive). Utmost attention was paid to nulify or to reduce the local seeding of the tumor cell during aggressive curettage, which was followed by electrical cautery of the cavitey wall, and lastly by the cavity obliteration with bone cement. None of the cases had lung metastasis. Only in a stage III GCT case(4.3%) of local recurrence after curettage and bone and artificial bone graft, recurettage and cementation brought the successful outcome. Through this study, it was reconfirmed that with correct indications the use of cement as a local adjuvant in conjuction with curettage was effective method in treating GCT without any side effects.
Cautery ; Cementation ; Curettage ; Femur ; Follow-Up Studies ; Giant Cell Tumors ; Hot Temperature ; Lung ; Methods ; Neoplasm Metastasis ; Polymerization ; Polymers ; Recurrence ; Tibia ; Transplants ; Virtues

The Na+ -K+ -activated ATPase is required to maintain osmotic balance and stabilize cell volume. The Na+ -K+ -ATPase has a more direct role in regulating cell volume; it controls the solute concentrations inside the cell, thereby regulating the osmotic forces that can make a cell swell or shrink. The impotance of the Na+ -K+ -ATPase in controlling cell volume is indicated by the observation that animal cells swell, and may burst, if they are treated with ouabain, which, inhibits the Na+ -K+ -ATPase. The present experiment was designed and carried out to determine the effect of verapamil, a calcium blocker, on the activity of Na+ -K+ -ATPase prepared from renal medulla in the normal rabbit. It was reported that verapamil, a well known coronary vasodilator, possessed negative inotropic effects. The mechanism of action of verapamil was initially thought to be due to coronary vasodilation and blockade of myocardial B-adrenergic receptors. 1t was termed such agent calcium antagonist. A derivative of verapamil, D-600, was subsequently shown to block the movement of calcium through the slow channel and thereby after the plateau phase of the cardiac action potential. Verapamil do not directly antagonize the effects of calcium. Rather, it inhibit the entry of ealcium into cells or its mobilization form intracellular stores and, as such, have been termed a calcium channel blocker.
Action Potentials ; Adenosine Triphosphatases* ; Adenosine* ; Animals ; Calcium ; Calcium Channels ; Cell Size ; Gallopamil ; Ouabain ; Vasodilation ; Verapamil*

The authors compared the basic characteristics of rural woman in relation to family planning for June 1967 and June 1969 in Kyung San Country Kyungpook Province, Korea. The statistics showed that these characteristics are gradually changing. The marriage age was slightly higher than the past year and the formal education of women increased. The ideal children number, and tile gravidity and mortality rates decreased. At the same time the number of induced abortions, the knowledge of family planning, and the acceptance rate of contraception increased. These phenomena seem to follow the present worldwide trend.
Abortion, Induced ; Child ; Contraception ; Education ; Family Planning Services* ; Female ; Gravidity ; Gyeongsangbuk-do ; Humans ; Korea ; Marriage ; Mortality

Pancreatoblastoma has been described in children and characterized by unique histologic features and excellent clinical course. Ultrastructural and immunohistochemical studies of pancreatoblastoma reveal either exocrine alone or both endocrine and exocrine differentiation. We present two cases of pancreatoblastoma in children in which immunohistochemical and ultrastructural examination failed to demonstrate features of either enzyme or hormone production and which became worse in clinical course. We assume that pancreatoblastomas are tumors which differentiate more toward acinar or ductal elements than toward islet cell.
Carcinoma/*pathology/ultrastructure ; Child, Preschool ; Female ; Humans ; Pancreatic Neoplasms/*pathology/ultrastructure

The purpose of this review was to investigate the relationship between aerobic exercise and cognitive function as well as synthesize the effect of aerobic exercise intervention studies centered on psychiatric symptoms associated with general cognitive deficit. Prospective studies on aerobic exercise and improvement of cognitive function were reviewed and synthesized. In addition, this literature review provides significant positive results on the relationship between aerobic exercise and general cognitive deficit associated with psychiatric symptoms. Review of this literature suggests that there is a positive relationship between participation in aerobic exercise and cognitive function. In this text, there are at least three general pathways by which aerobic exercise may facilitate executive function in children : 1) cognitive demands inherent in engaging in physical activity, 2) cognitive demands inherent in cooperation of complex motor tasks, and 3) physiological changes resulting from aerobic exercise. Another main finding of this review is that physical activity has a stronger influence on cognitive deficit, including attention-deficit hyperactivity disorder, depression, and anxiety. Development of cognitive function is the most important factor for children and youth. Therefore, future research should prove relationship between physical activity and cognitive function using a more scientific and quantitative approach design.
Adolescent* ; Anxiety ; Child ; Depression ; Executive Function ; Exercise* ; Humans ; Clinical Trial ; Motor Activity ; Prospective Studies

No abstract available.
Child* ; Glomerulonephritis, IGA ; Hematuria* ; Humans ; Nephritis* ; Purpura, Schoenlein-Henoch*