1.Noninvasive Assessment of Pressure Gradient by Quantitative Two-Dimensional Echocardiographic Doppler Studies in Pediatric Cardiovascular Diseases.
Wang Bok LEE ; Hye Li CHUNG ; Dong Jin LEE ; Sang Bum LEE
Journal of the Korean Pediatric Society 1987;30(5):518-526
No abstract available.
Cardiovascular Diseases*
;
Echocardiography*
2.Effects of Eupatilin on the Release of Leukotriene B4 , by Helicobacter pylori - stimulated Neutrophils and Gastric Mucosal Cells.
Jung Jin LEE ; Bok Gee HAN ; Mal Nam KIM ; Myung Hee CHUNG
Journal of the Korean Society for Microbiology 1997;32(6):659-666
Leukotrienes (LTs) are known to act as a mediator provoking tissue response in inflammation. LTs, particularly type B4 (LTB4) as chemotactic factor of neutrophil are released from neutrophils and gastric mucosal cells when these cells are stimulated by Helicobacter pylori. The present study was performed to test a possibility that eupatilin may prevent the H. pylori-induced gastric cell damage by observing whether this chemical inhibit the release of LTB4 from H. pylori-stimulated gastric cells (Kato III) and neutrophils. As observed in the previous study, H. pylori induced the release of LTB4 from these cells and at the same influx of Ca2+ into the cells. In the presence of eupatilin, the release of LTB4 was inhibited whereas Ca2+ influx was not affected. Probably eupatilin may inhibit the release of LTB4 by preventing the synthesis of LTs. These results suggest that eupatilin can has a therapeutic effect on H. pylori-induced gasric cell damage.
Helicobacter pylori*
;
Helicobacter*
;
Inflammation
;
Leukotriene B4*
;
Leukotrienes
;
Neutrophils*
3.Inhibitory Effect of Rebamipide on Helicobacter pylori Induced Release of Leukotriene D4.
Jung Jin LEE ; Bok Gee HAN ; Mal Nam KIM ; Myung Hee CHUNG
Journal of the Korean Society for Microbiology 1997;32(6):653-658
It has been implicated that leukotrienes play roles in the pathogenesis of gastritis and gastric ulceration associated with Helicobacter pylori (H. pylori). Rebamipide is being used as an antiulcer drug but it's mechanism of action has not been understood well. One possible mechanism of action of this drug is to inhibit the cellular release of leukotrienes by various stimuli, particularly H. pylori. In the present study, attempts were made to test this possibility and the results are as follows. When Kato III cells (gastric adenoma cells) were stimulated by H. pylori, leukotriene D4 (LTD4) was released and rebamipide inhibited this release dose-dependently. Similar experiment was performed on neutrophils because the infilteration of neutrophils is a common phenomenon in H. pylori-infected gasrtric tissues. Neutrophils released LTD4 when these cells were stimulated by H. pylori and rebamipide also inhibited this release. Furthermore, rebamipide inhibited the release of LTD from neutrophils induced by calcium ionophore A23187 and arachidonic acid. The results suggest that rebamipide has the action to inhibit the release of LTD4 from various cells and this action may contribute in part to prevent the ulcerogenesis induced by H. pylori.
Adenoma
;
Arachidonic Acid
;
Calcimycin
;
Calcium
;
Gastritis
;
Helicobacter pylori*
;
Helicobacter*
;
Leukotriene D4*
;
Leukotrienes
;
Neutrophils
;
Stomach Ulcer
4.A study on the relationship between juvenile delinquency and family environment.
Duk Jin YUN ; Jung Kyoo PARK ; Jong Bok CHUNG ; Jung Mo NAM ; Jong Yun PARK
Journal of the Korean Pediatric Society 1993;36(2):195-207
This study was conducted to find out an appropriate means for preventing the juvenile delinquency (JD), which is supposed to be greatly realted to family environment. The data were collected through a questionnaire survey with a means of writing by themself, to 257 middle and high school students and 309 juvenile delinquents who were in confinement. The questionnaire was consisted of 27 items of juvenile delinquencies, 15 questions about personal environment in their period of childhood, 36 questions on their home atmosphere, 25 items with regard to their parental behavior to their children in the rearing of them. The extent of delinquency was calculated by summing the numbers of experienced delinquencies of the listed items. The study subjects were divided into two groups; student group (SG) and juvenile delinquent group (JDG) and the collected data were analyzed with the extent of delinquency in each group by SPSS/PC+statistical package. The extent of JD was increased as the study subjects grew older, defective families were more common, total family income was more poor, parents' educational level was lower, personal expenses were higher and the conflicts between parents were more high in JDG as compared with of SG. The differences were statistically significant. As long as the extent of delinquency is concerned, delimquent points of JDG were significantly higher as compared with that of SG in all items except one item, below the primary school item in fathers' educational level. (In order to prevent JD in our country, it is recommended that educational level and the living standared of the lower class people should be raised, the sound families which do have less conflictsshould be established as much as possible, the present educational system which is making much conflicts between parents and their offsprings should be changed so that their given temperament would be brought up to the highest level, defective families should be reduced as much as possible and adults should not do actions that are considered not to be done by youngsters and must set a good example.)
Adult
;
Atmosphere
;
Child
;
Humans
;
Juvenile Delinquency*
;
Parents
;
Surveys and Questionnaires
;
Temperament
;
Writing
6.Nodular Regenerative Hyperplasia of the Liver in an Infant: Case Report.
Ho Kyun KIM ; Young Hwan LEE ; Duck Soo CHUNG ; Ok Dong KIM ; Jin Bok WHANG ; Jae Bok PARK
Journal of the Korean Radiological Society 2002;47(6):689-692
Nodular regenerative hyperplasia (NRH) of the liver is an uncommon disease entity, especially in the pediatricage group. A few cases have been reported in the radiologic literature, but follow-up imaging studies are rare. We describe a case of NRH, diagnosed by ultrasound-guided needle biopsy, in a seven-month-old infant with cri-du-chat syndrome. Initial ultrasound revealed several small hypoechogenic nodules in the liver, but CT and MR failed to demonstrate their presence. Two follow-up sonographic examinations were performed 7 and 20 months later, revealing increases in the size and number of the nodules.
Biopsy, Needle
;
Cri-du-Chat Syndrome
;
Follow-Up Studies
;
Humans
;
Hyperplasia*
;
Infant*
;
Liver*
;
Ultrasonography
7.Pure Akinesia: Report of Two Cases.
Jin Young AHN ; Jae Myun CHUNG ; Beom Seok JEON ; Sang Bok LEE
Journal of the Korean Neurological Association 1994;12(4):748-753
Parkinsonism is a clinical syndrome with constellation of resting tremor, rigidity, bradykinesia, and a variety of gait disturbances. Gait disturbances in parkinsonism include short-stepped festination, loss of postural reflexes, and freezing. In certain parkinsonian states such as progressive supranuclear palsy, gait disturbances are very prominent over other clinical signs of parkinsonism in the early stage. However, freezing is usually seen in the late course of parkinsonism. Recently, it has been recognized that some patients have prominent freezing in their early course of the disease, and not much of other parkinsonian signs. The pathologies need to be confirmed, but must be divers based on clinical description of the cases. We report two elderly men who presented with pure freezing. There was minimal short-term memory impairment in the second case, but no other signs of parkinsonism were present. Brief trial of L-dopa did not offer much benefit. Detailed clinical features and laboratory findings will be presented with discussion of the literatures.
Aged
;
Freezing
;
Gait
;
Humans
;
Hypokinesia
;
Levodopa
;
Male
;
Memory, Short-Term
;
Parkinsonian Disorders
;
Pathology
;
Reflex
;
Supranuclear Palsy, Progressive
;
Tremor
8.CT findings of thymic tumors.
Ho Son CHUNG ; Sang Jin LEE ; Mi Soo HWANG ; Kil Ho CHO ; Jae Chun CHANG ; Bok Hwan PARK
Journal of the Korean Radiological Society 1991;27(3):343-347
No abstract available.
Thymus Neoplasms*
9.A Follow-up Study of Intractable Diarrhea in Early Infancy: Clinical Features of Cow's Milk Allergy and Cow Milk-Sensitive Enteropathy.
Young Rak KWON ; Young Ho AHN ; Jin Bok HWANG ; Chang Ho HAN ; Hai Lee CHUNG ; Young Dae KWON
Journal of the Korean Pediatric Society 1995;38(11):1515-1524
No abstract available.
Diarrhea*
;
Follow-Up Studies*
;
Milk Hypersensitivity*
;
Milk*
10.Two cases of Edward syndrome.
Jin Bok HWANG ; Woo Hyun KWON ; Soon Young SONG ; Chang Ho HAN ; Hye Li CHUNG ; Young Dae KWON
Journal of the Korean Pediatric Society 1991;34(2):250-255
No abstract available.