2.Enhancement of Immunogenicity of the Inefficient Antigen Through DNA Vaccine-based Epitope Modification.
Soong Hwa JANG ; Mi Jin KIM ; Yong Suk JANG
Korean Journal of Immunology 2000;22(3):111-116
No abstract available.
DNA*
3.Comparative Study in DNA-mediated Vaccination Efficaency Among the Plasmids with Different Promoters.
Sun Hwa CHANG ; Koo Nam YANG ; Yong Suk JANG
Korean Journal of Immunology 1998;20(4):375-379
Plasmid vectors with either RSV or CMV promoter are frequently used for DNA- mediated immunization due to the availability in commercial. Consequently, influence of the vector constituents, such as promoter, enhancer and transcription termination signal etc. on vaccination efficiency is not studied extensively. As an initial attempt to develop an efficient vector system for DNA-rnediated immunization, influence of promoter for antigen gene expression on vaccination efficiency has been analyzed. Initially, plasmids with either B-actin or muscle creatine kinase (MCK) promoter were constructed from the plasmid with prototype CMV promoter. In addition, ovalbumin (OVA) antigen gene has been cloned into each vectors to generate the plasmid vectors with different promoters for induction of the anti-OVA immune responses. Antigen protein expression in antigen gene transfected mouse muscle myoblast cells showed that the level from MCK promoter containing plasmid was slightly higher than those from either CMV or B-actin promoter containing plasmids. Also, the same plasmid turned out to be slightly more efficient than other plasmids in antibody imrnune response induction in vivo, when they were applied both through intramuscularly and intradermally. These results suggest that the commonly used CMV promoter containing plasmid vector could be further modified to develop an efficient vector for DNA-mediated immunization.
Animals
;
Clone Cells
;
Creatine Kinase, MM Form
;
Gene Expression
;
Immunization
;
Mice
;
Myoblasts
;
Ovalbumin
;
Plasmids*
;
Vaccination*
4.A Research on Analysis of Eating Habits and Textbook Contents for Efficient Nutrition Education of Elementary School Students in Gangneung City.
Journal of the Korean Dietetic Association 2007;13(4):379-388
This study empirically examined the actual level of elementary school children's knowledge of nutrition and the extent of current nutrition education for the children through the use of textbooks. Two or three classes were sampled from each of six schools, respectively, in Gangneung; of the 562 questionnaires that were distributed, 537 were returned and used for analysis. Respondents were all sixth-graders, on average boys and girls were 153.02+/-8.19cm and 152.79+/-7.15cm in height and 45.27+/-10.32kg and 43.33+/-7.46kg in weight, respectively, which was consistent with others' research. Most children had two siblings and a working mother, considered that they were well off, and their mother prepared meals. Children regularly had breakfast and dinner, although more children had dinner than breakfast. As a whole, their knowledge of the main nutrients contained in foods was lower than their general knowledge of nutrition. There were significant differences in knowledge of the main nutrients contained in foods, with girls showing more knowledge than boys (p<0.01). Most of them learned about nutrition at school, followed by home. At school, Practical Technology classes taught them the most about nutrition. Although Physical Education classes were expected to teach about nutrition in a quantitative way, they accounted for just 4.7% of the overall knowledge. As for the children's understanding of nutrition education through use of a textbook at school, just 19% of the students gained a very good understanding. As for interest in nutrition education at school, 22.2% of the students had no interest, while girls were more likely to have their interest in nutrition education at school affected by knowledge of nutrition than boys. For both boys and girls, the most desired method of education was cooking practice. More research across subjects is necessary so that nutrition education concentrated on the curriculum for fifth-graders can be provided by stages from the lower grades. Since cooking practice or games were preferred, it is necessary to develop nutrition education methods to incite active interest rather than passive education.
Breakfast
;
Child
;
Cooking
;
Curriculum
;
Surveys and Questionnaires
;
Eating*
;
Education*
;
Female
;
Gangwon-do*
;
Humans
;
Meals
;
Mothers
;
Physical Education and Training
;
Siblings
5.Erosion of an Inflatable Penile Prosthesis Reservoir into the Bladder, Presenting Bladder Calculi .
Ju Heon YANG ; Ji Sung PARK ; Hyeuk Jun JANG ; Byung Hwa LEE
Korean Journal of Urology 2004;45(10):1077-1079
Complications of penile prosthesis include malfunction, infection and patient dissatisfaction. Herein, a rare complication of a retained reservoir having eroded into the bladder after the removal of the penile components of a three-piece penile prosthesis, is reported. A 39-year-old man complained of irritative voiding symptoms. The symptoms had developed 4 years after the removal of the penile components of the prosthesis. The erosion of the reservoir into the bladder was discovered incidentally during the treatment of bladder calculi. The reservoir was removed by an open vesicolithotomy.
Adult
;
Calculi
;
Cytochrome P-450 CYP1A1
;
Humans
;
Penile Prosthesis*
;
Prostheses and Implants
;
Urinary Bladder Calculi*
;
Urinary Bladder*
6.Effect of Intravenous Immunoglobulin(IVIG) on Renal Function in Very Low Birth Weight Infants.
Journal of the Korean Pediatric Society 1996;39(4):475-481
PURPOSE: This study was conducted to evaluate the effect of IVIG infusion on renal function in VLBW infants. IVIG has been proved quite safe in neonates given prophylactic and therapeutic doses. But nephrotoxicity is not recognized as adverse in IVIG therapy, only several previous adult cases have been noted. METHODS: For a total of ten VLBW infants who had not been received any medication except parenteral nutrition, vitamin and Fe supplements was assigned for study. To observe changes in renal function after preventive dose of IVIG administration(500mg/kg, 1dose) serum BUN and creatinine, 2-microglobulin( 2-MG) and N-acetyl- -D-glucosaminidase(NAG) were obtained prior to study and 1, 3 and 7 days after infusion. RESULTS: 1) There were no elevation of serum BUN and creatinine after IVIG administration, 2) There was transient increase of urine NAG from 1.1+/-0.7 u/mg creatinine before infusion to 2.7+/-5.3 u/mg creatinine on the first day of infusion, which was not statistically significat, decreasing to pretreatment level on the 3rd and 7th days after infusion. 3) There was transient increase of urine 2-MG from 294.6+/-223.8 microgram/mg creatinine before infusion to 680.0+/-108.9 microgram/mg creatinine on the first day and 416.0+/-246.3 microgram/mg creatinine on 3rd day after infusion, which was not statistically significant. CONCLUSIONS: It was found that prophylactic dose of IVIG in VLBW infants does not cause clinically significant impairment of renal function. but mild increment of urine NAG and 2-MG may suggest the possibility of renal tubular damage. Based on these results, further evaluation of the effect of IVIG on renal function in VLBW infant is recommended.
Acetylglucosaminidase
;
Adult
;
Creatinine
;
Humans
;
Immunoglobulins, Intravenous
;
Infant*
;
Infant, Newborn
;
Infant, Very Low Birth Weight*
;
Parenteral Nutrition
;
Vitamins
7.Exchange Transfusion Treatment for Dapsone-induced Methemoglobinemia.
Journal of The Korean Society of Clinical Toxicology 2008;6(1):37-41
Methemoglobinemia can be caused by dapsone toxicity. We report a case dapsone induced methemoglobinemia unresponsive to methylene blue successfully treated by exchange transfusion. A 52-year-old male ingested a handful of dapsone. He presented with severe peripheral cyanosis in lips and fingertips and his methemoglobin level was found to be 21.9%. After admission, methylene blue (1%) at 1 mg/kg was injected each time peripheral cyanosis and rising serum methemoglobin occurred. Despite methylene blue therapy, the patient's methemoglobin level continued to fluctuate. Five days after the injections of methylene blue, many Heinz bodies were visualized in the peripheral blood, suggestive of hemolytic anemia occurrence. By hospital day 6, serum methemoglobine levels were elevated and not measurable (> 50%) and the patient was constantly in a semi-comatose mental state. An exchange transfusion carried out by utilizing 6 units of packed red blood cells and 4 units of fresh frozen plasma was performed. The patient's methemoglobin levels were subsequently kept up below 20% and his peripheral cyanosis receded. Physicians should recognize the important role of exchange transfusion in refractory dapsoneinduced methemoglobinemia.
Anemia, Hemolytic
;
Cyanosis
;
Dapsone
;
Erythrocytes
;
Hand
;
Heinz Bodies
;
Humans
;
Lip
;
Male
;
Methemoglobin
;
Methemoglobinemia
;
Methylene Blue
;
Middle Aged
;
Plasma
8.Effect of Degassing Condition on Ceramic Bond Strength of Ni-Cr Alloys.
Eun Hwa LEE ; Young Chan JEON ; Chang Mo JEONG ; Jang Seop LIM
The Journal of Korean Academy of Prosthodontics 2000;38(4):461-471
This study evaluated the effect of dagassing on the ceramic bond strength of two Ni-Cr alloys under varying holding time at the upper limit temperature and atmospheric conditions. Metal specimens were divided into 5 groups for each alloy according to degassing conditions prior to porcelain application : no degassing, degassing under vacuum without hold, degassing under vacuum with hold for 5min. and 10 min. respectively at the upper limit temperature and degassing in air. Total number of metal ceramic specimens was eighty and each group had eight specimens : The ceramic bond strength was measured by four-point flexural test using Instron and the fractured surface was examined under SEM. The results obtained were as follows. 1. Degassing in air improved the ceramic bond strength of Ni-Cr alloys. 2. in degassing under vacuum, hold at the upper limit temperature was advantageous to the ceramic bonding of Ni-Cr alloys. 3. After ceramic metal bond test, metal surfaces were partially covered with the thin porcelain layer, and the cohesive failures in porcelain were predominant in groups showing higher ceramic bond strength.
Alloys*
;
Ceramics*
;
Dental Porcelain
;
Vacuum
9.A Case of Prenatal Diagnosis of Congenital Fetal Goiter in Hyperthyroidism Mother.
Dong Han BAE ; Young Hwa KIM ; Kyu Yeon CHOI ; K T JANG ; Sang Yeob KIM
Korean Journal of Perinatology 1998;9(1):35-42
We report a case of prenatal diagnosis of fetal congenital goiter at 31weeks of gestation by ultrasonogram and fetal hypothyroidism confirmed at birth as thyroid function test by umbilical cord blood sampling. Maternal Graves' disease and the drugs used to treat hyperthyroidism in pregnant women can affect the fetus, causing hyperthyroidism or hypothyroidism and goiter. Fetal hypothyroidism may be caused by transplacental passage of either maternal thyrotropic-binding inhibitory immunoglobulin(TBII) antibodies or maternal treatment with propylthiouracil(PTU). Untreated fetal hypothyroidism may result in mental retardation, perceptual-motor, visual-spatial, and language developmental problems. In this article fetal thyroid function was not assessed by cordocentesis, but fetal congenital goiter was detected ultrasound. Ultrasound should be used to detect fetal goiter from 20 weeks onward. Fetal goiter should resolve when maternal PTU treatment is decreased. We have diagnosed fetal hypothyroidism in utero by ultrasonography. Significance of in utero management of fetal hypothyroidism is discussed.
Antibodies
;
Congenital Hypothyroidism
;
Cordocentesis
;
Female
;
Fetal Blood
;
Fetus
;
Goiter*
;
Graves Disease
;
Humans
;
Hyperthyroidism*
;
Hypothyroidism
;
Intellectual Disability
;
Language Development
;
Mothers*
;
Parturition
;
Pregnancy
;
Pregnant Women
;
Prenatal Diagnosis*
;
Thyroid Function Tests
;
Thyroid Gland
;
Ultrasonography
10.Factors affecting practice of infectious wastes management of dental professionals
Journal of Korean Academy of Oral Health 2018;42(4):175-180
OBJECTIVES: This study aimed to evaluate the relationship between oral health professionals' knowledge, attitude, and practice with regard to infectious waste management and to identify related factors influencing it. METHODS: The study comprised of 219 oral health professionals from select dental clinics and public health centers recruited between August 25, 2016 and September 5, 2016, who agreed to participate in the study with full understanding of the study objectives. A self-reported questionnaire was administered, which consisted of 22 items on knowledge of infectious waste management, 9 items on attitude, and 16 items on practice. Data were analyzed using Pearson's correlation coefficient and stepwise multiple regression analyses. RESULTS: The age, knowledge, and clinical attitude of oral health professionals significantly correlated with waste management practice. Specifically, infectious waste management practice improved with increasing age, a greater level of knowledge, and a more positive clinical attitude. Additionally, the standardized regression coefficient demonstrated that, of these three factors, clinical attitude more strongly correlated with effective waste management practice, followed by age and level of knowledge. CONCLUSIONS: These results indicated that oral health professionals had a low level of knowledge regarding infectious waste management, and a more positive clinical attitude resulted in better practices. Therefore, the development of detailed and active education guidelines and strategies are needed to enhance the attitude, knowledge, and practice of oral health professionals with regard to infectious waste management.
Dental Clinics
;
Education
;
Oral Health
;
Public Health
;
Waste Management