Epstein-Barr virus (EBV) is a potent inducer of polyclonal B lymphocyte proliferation and a tool for the establishment of human B lymphoblastoid cell lines (B-LCLs), which have proven useful for several human immunologic applications. B-LCLs serve as efficient antibody-producing cells and antigen-presenting cells. In spite of these advantages, the cloning efficiency of B-LCLs is less than 1%. In order to generate clones of B-LCLs, we cultured B-LCLs with and without canine stromal cell line, DO64, as feeder cell which was immortalized by transduction of retrovirus encoding E6 and E7 of the human papilloma virus type 16 (HPV-16), which was defined to produce various cytokines including stem cell factor (SCF) and interleukin- 6 (IL-6). After 3 weeks of B-LCLs cultured with DO64, 8.3% and 37.5% in 1 cell and 3 cells per well were efficiently cloned, respectively. There was no significant effect on growing of 8-LCLs without DO64 cells and on high concentration of FBS. The cloning efficiency of B-LCLs transduced by retrovirus cultured with and without DO64 cells was 4.2% and 0% in 3 cells per well, respectively, while that of stable transfectant 33.3% and 8.3% in 1 cell per well, respectively. Our results suggest that the use of DO64 cells as feeder cells might permit the cloning of B-LCLs. This efficient cloning of B-LCLs could be used for the convenient source of autologous antigen-presenting cells expressing foreign antigen for the study of human immune responses in vitro, and for a variety of additional purposes, such as the production of human monoclonal antibodies.
Antibodies, Monoclonal ; Antibody-Producing Cells ; Antigen-Presenting Cells ; Cell Line* ; Clone Cells* ; Cloning, Organism* ; Cytokines ; Feeder Cells* ; Herpesvirus 4, Human ; Humans* ; Lymphocytes ; Papilloma ; Retroviridae ; Stem Cell Factor ; Stromal Cells*

No abstract available.
Histiocytoma, Malignant Fibrous* ; Maxillary Sinus* ; Nasal Cavity*

BACKGROUND: There is pressure difference depending on the height of hand position when blood pressure is taken, applying the oscillometric electronic digital BP(blood pressure) monitor. Authors have calculated the degree of BP differences, and evaluated the accuracy and effectiveness of the digital BP monitor comparing with the conventional Mercury Sphygmomanometer. METHOD: Randomized sixty cases consisting of in-patients and hospital workers were subjected for this study. BPs were taken at three different levels-nose level, heart level and knee level-on conventional sitting position applying OMRON Digital Automatic Blood Pressure Monitor and conventional Mercury Sphygmomanometer, and statistical analysis was made. RESULTS: At the nose level, systolic BP and diastolic BP were lower with 23.5mmHg and 18.9mmHg respectively, than at the heart level, while at the knee level, they were higher with 21mmHg and 17.5mmHg respectively, than at the heart level. No actual statistical difference of systolic and diastolic values between OMRON Digital Automatic Blood Pressure Monitoring method at the heart level and conventional Mercury Sphygmomanometeric method. CONCLUSION: Present study demonstrated significant discrepancy of BP values, in systolic and diastolic values, depending on the height of measured finger, when OMRON Digital Automatic Blood Pressure Monitor is applied in taking BP on conventional sitting position. However, no actual discrepancy of BP values was noted between two methods when BP is taken at heart level by OMRON Digital Automatic Blood Pressure Monitor and on brachial artery BP by conventional Mercury Sphygmomanometer. Thus OMRON Digital Automatic Blood Pressure Monitor could take the place of Mercury Sphygmomanometer in taking peripheral BP, which subsequently enable us to estimate central artery BP, which is believed to be better clinical index, through this much more handy electrical oscillometric device in the future.
Arteries ; Blood Pressure ; Blood Pressure Monitors ; Brachial Artery ; Electric Impedance ; Fingers ; Hand* ; Heart ; Hydrostatic Pressure ; Knee ; Nose ; Sphygmomanometers*

The purpose of this study was to investigate the relationship between the space discrepancy of the mandibular dentition and craniofacial morphology in adults with good Angle class I occlusion. Dental casts of normal group, crowded group and spaced group were selected on the basis of dental crowding and spacing. Subjects with excessive space to accomodate the lower teeth were classified as spaced group(39). Subjects with a space discrepancy of more than 4mm were classified as crowded group(45). Normal subjects had little or no dental crowding and spacing(40). Various skeletodental measurements in lateral cephalograms were evaluated and compared by ANOVA, Pearson correlation analysis and multiple stepwise regression analysis. The results were as follows : 1. ANB angle was larger in crowded group than in spaced group. 2. Maxilla and mandible in crowded group were inclined more downward and forward than in spaced group, so crowded group was found to have vertical tendency. 3. Anterior cranial base length and mandibular body length were longer in spaced group than in crowded group. 4. According to the multiple stepwise regression analysis with space discrepancy as dependent variable, 40% of variance of space discrepancy could be explained by ANB angle, anterior facial height and ramus height. Multiple regression equation was as follows Space discrepancy=46.51-2.51ANB-0.58AFH+0.65RH
Adult ; Dentition ; Humans ; Malocclusion ; Malocclusion, Angle Class I ; Mandible ; Maxilla ; Skull Base ; Tooth

In 25 aortic regurgitation patients relationship between degree of aortic regurgitation graded by 2-D color Doppler echocardiography and diastolic fluttering of anterior mitral leaflet on M-mode echocardiography was evaluated. The results were that all 13 aortic regurgitation patients, not associated with mitral stenosis, showed diastolic fluttering of anterior mitral leaflet; but only 3 patients among 12 patients (25%), associated with mitral stenosis, had characteristic mitral fluttering. On the whole, regardless of associated mitral stenosis, the sensitivity was 64%. In severe aortic regurgitation (Grade 3, 4 group) 12/13 patients revealed diastolic fluttering of anterior mitral leaflet (sensitivity of 92%); in mild to moderate aortic regurgitation (Grade 1, 2 group), only 4/12 patients (sensitivity of 33%). In conclusion, 2-D color Doppler echocardiography is a very useful method for detection of aortic regurgitation without difficulty. And in aortic regurgitation, not associated with mitral stenosis, fine fluttering of anterior mitral leaflet is a very sensitive sign of existence of aortic regurgitation, though there may be some false positive findings in normal individuals.
Aortic Valve Insufficiency* ; Echocardiography ; Echocardiography, Doppler, Color* ; Humans ; Mitral Valve Stenosis

Graves disease is the most common clinical feature of hyperthyroidism in childhood. Clinical manifestations include emotional lability, hyperactivity, tremor, excessive sweating, exophthalmos and weight loss. In Graves disease, osteoporosis could occur because of a disturbance of mineral homeostasis which rarely develops from reduced calcium absorption of the gastrointestinal tract and increased urinary calcium excretion related to an increased bone resorption. We report a case of Graves disease with spinal deformity caused by osteoporosis in a 12-year-old female who was presented with back pain, anterior neck mass and kyphosis. Laboratory findings revealed hyperthyroidsm, hypercalciuria in 24-hour urine and normal serum parathyroid hormone. On radiologic examination, multiple osteoporosis and a spinal compression fracture were observed. The bone mineral density was decreased at the hip and lumbar spine on the bone densitometry. After initiating antithyroid drug, calcitonin and vitamin D, she returned to a euthyroid state and her back pain was improved. Bone density was also increased one year later.
Absorption ; Back Pain ; Bone Density ; Bone Resorption ; Calcitonin ; Calcium ; Child ; Congenital Abnormalities ; Densitometry ; Exophthalmos ; Female ; Fractures, Compression ; Gastrointestinal Tract ; Graves Disease* ; Hip ; Homeostasis ; Humans ; Hypercalciuria ; Hyperthyroidism ; Kyphosis* ; Neck ; Osteoporosis* ; Parathyroid Hormone ; Spine ; Sweat ; Sweating ; Tremor ; Vitamin D ; Weight Loss

Hypotension during spinal anesthesia for cesaresn section remains as a common and serious complication despite the use of uterine displacement and volume preloading. This study was designed to compare the efficacy of the speed of crystalloid preload for reduc- ing the incidence of hypotension during spinal anesthesia for elective cesarean section. Twenty ASA I parturients were randomly allocated to receive 20ml/kg of crystalloid over either 20min (group 1) or 10min(group 2) before spinal anesthesia. Both groups showed a significant increase in central venous pressure during and immediately after preload, but there was no significant difference between the groups. Six patients in group 1 developed hypotension(a decrease in systolic pressure below 100mmHg and a fall of 20% from baseline values) and so did seven patients in group 2. We concluded that rapid crystalloid preloading did not reduce the incidence of hypotension during cesarean section under spinal anesthesia and its effectiveness in questionable.
Anesthesia, Spinal* ; Blood Pressure ; Central Venous Pressure ; Cesarean Section* ; Female ; Humans ; Hypotension* ; Incidence ; Pregnancy

This study investigated elementary, middle, and high school teachers' satisfaction, nutrition education, workload changes, and demands in school foodservice programs (SFPs). The subjects were 630 teachers at 12 elementary, 9 middle, and 9 high school within the nation. Ninety five percent of the teachers felt that there was a necessity for SFPs. Middle school teachers (MTs) and high school teachers (HTs) thought that it was necessary in order to reduce the students'burden of carrying lunch boxes. The teachers were relatively satisfied with their school's foodservice management types, food distribution types, meal quality, and sanitation. Elementary teachers (ETs) and HTs had a higher satisfaction than MTs. Teachers thought that SFPs had positive effects on their students' nutrition and health, enhancing desirable eating habits, and socialization. ETs had more positive opinions than MTs or HTs. ETs and MTs thought that their workload had been increased by SFPs more than HTs, but they had relatively positive opinions on the workload change. ETs taught nutrition and health through SFPs more frequently than MTs or HTs. Many teachers thought that there was a lack of appropriate teaching materials. Some teachers thought that the problems in the present SFPs were: a lack of cafeteria facilities, poor quality of meals, and management of leftovers. Their demands for SFPs were a improvement of meal quality and the establishment of cafeterias. In conclusion, MTs had more negative opinions than ETs or HTs. ETs perceived that SFPs had a function as an important educational activity as well as the supply of nutritional meals. MTs or HTs tended to consider only a meal. It is suggested that teachers, especially MTs and HTs, should modify their attitudes and recognize the educational functions of SFPs. Training programs should be developed under government auspices.
Eating ; Education ; Humans ; Lunch ; Meals ; Sanitation ; Socialization ; Teaching Materials

This study on satisfaction with school food service (FS) programs was conducted with 485 middle school students and 515 high school students based on FS management type. There were four types of FS management: independent-conventional (IC), independent-commissary (ICM), contract-conventional (CC), and contract-delivery (CD). About seventy percent of the students expressed satisfaction with the food quantity of the school lunches. But one third of the students, who felt the quantity was insufficient, cited the small size of the rice serving. Many high school students cited the small size of the side dishes as well as the rice serving. It is suggested that the meal quantity should be determined in consideration of the students' physical development. The satisfaction with FS sanitation was lower than that with the meal quality, eating environment, and environment of dining room with respect to all four types of FS management, and was lowest in the CD. It is suggested that FS sanitation should be managed more thoroughly for the students' safety, and that the school FS Committee should carefully monitor the sanitary management of the contract FS companies by means of a well-designed and monitored management system. Most of middle and high school students expected good taste and a diversity of foods in their school lunches. Food taste should be improved, and various food materials and cooking methods should be used for balanced nutrition and greater student satisfaction, particularly in contract FS types (CC and CD).
Cooking ; Eating ; Food Services* ; Humans ; Lunch ; Meals ; Sanitation

Antiphospholipid syndrome is a multi-system disorder characterized by arterial or venous thromboses and antiphospholipid antibodies, such as lupus anticoagulant or anticardiolipin antibodies. Most common clinical manifestations are recurrent pregnancy losses and deep vein thromboses. Cardiac manifestations in antiphospholipid syndrome include valve abnormalities, occlusive arterial disease, intracardiac emboli, and ventricular dysfunction. Acute myocardial infarction is a rare manifestation of the primary antiphospholipid syndrome. We have experienced a case of myocardial infarction with antiphospholipid syndrome. A 35-year-old man with no cardiovascular risk factors, other than smoking, presented with chest pain. He was diagnosed with an acute myocardial infarction. Our evaluation for coagulapathy revealed elevated lupus anticoagulant antibody. The antiphospholipid syndrome should be considered early in the differential diagnosis as an important cause of unexplained thrombosis in young patients.
Adult ; Antibodies, Anticardiolipin ; Antibodies, Antiphospholipid ; Antiphospholipid Syndrome ; Chest Pain ; Diagnosis, Differential ; Humans ; Lupus Coagulation Inhibitor ; Myocardial Infarction ; Pregnancy ; Risk Factors ; Smoke ; Smoking ; Thrombosis ; Venous Thrombosis ; Ventricular Dysfunction