1.Type I Allergy to House Dust Mite and Familial BACKGROUND of Respiratory Atopy in Patients with Atopic Dermatitis.
Ja Kyoung SHIN ; Dae Won KOO ; Chong Ju LEE ; Yean Sub JANG
Korean Journal of Dermatology 1995;33(6):1046-1052
BACKGROUND: Recent studies have suggested that house dust mite allergy is an important cause of the atopic dermatitis(A.D). However, it is not clear that. what factors may be related to the development of the mite illergy in patients with AD. OBJECTIVE: This study was done to see whether the presence of a familial background of RA implies a relationship to the mite allergy in AD. METHODS: Skin prick test and fluoroallergosorbent, test (FAST) with house dust mit,e were performed in 47 patients wih AD. RESULTS: 1. In comparison the esult of prick test with that of FAST to house dust mite antigen, it showed a concordance ra!e of 82%. And the prick test was more sensitive than the FAST. 2. The prevalence of positive FAST reactions was significantly increased in the patients with AD who had a family hitory of RA than those in patients with AD who had neither family or personal history of RA. 3. The level of specific IgE against house dust mite did not relate to the presence of family cr personal history of RA. 4. The prevalence of positive prick test results did not relate to the presence of family or personal history of RA. 5. The prevalence of positive FAST reactions, the level of specific IgE, and the rate of positive prick test results did not relate to the severity of skin involvement. 6. The most common allergens which caused positive skin reactions were house dust, cat fur, Dermatophagoides farinac, Dermatophagoides pteronyssinus, et al. Antigen score of prick test to 55 common antigens wa. significant increased in the patients with AD who had a family history of RA, but did not relat to the severity of skin involvement or the presence of personal history of RA. CONCLUSION: We may conclude that type I allergy to the house dust mit,e is not directly related to AD perse. This type of allergy to the mite seems to occur predominantly in those patient s with AD who have a farilial background of RA.
Allergens
;
Animals
;
Cats
;
Dermatitis, Atopic*
;
Dermatophagoides pteronyssinus
;
Dust*
;
Humans
;
Hypersensitivity*
;
Immunoglobulin E
;
Mites
;
Prevalence
;
Pyroglyphidae*
;
Skin
2.A Case of Lymphangiectasia of the Vulva.
Ja Kyoung SHIN ; Hun Young JANG ; Chun Wook PARK ; Cheol Heon LEE
Korean Journal of Dermatology 1994;32(4):744-748
Lymphangiectasia is a rsre occurrence, and may be due to an undgrlying disturbance of the lymph flow following surgery or irrediation. We present an unusual case of an extensive lymphangictasia of the vulva following radical abdominal hysterectomy and irradiation for cervical cancer.
Hysterectomy
;
Uterine Cervical Neoplasms
;
Vulva*
3.The Relevance of Degree of Liver Fibrosis, Ito cell, and PKC Activity in Hepatic Fibrogenesis.
Young Mi JUNG ; Kee Tack JANG ; Yun Sil LEE ; In Kyoung LIM ; Mi Ran KIM ; Nan Kyoung MYOUNG ; Min Jae LEE ; Ja June JANG
The Korean Journal of Hepatology 1998;4(4):381-392
BACKGROUND/AIMS: Hepatic fibrosis in rat induced by thioacet amide shares similar morphological and biochemical characteristics with human liver cirrhosis. Thioacetamide (T AA) initially induces accumulation of collagen in Disse space and eventually leads to macro- and micronodular cirrhos is. Ito cell was believed to play a main role in hepatic fibrosis. And it s activity was known to be regulated by the expression of various genes. But little has been discovered about the upstream signal trans duction pathway of these genes in hepatic fibrosis. The expression of genesrelated to Ito cell activity was regulated by many transcription factors , the activity of which was regulated by protein kinase C( PKC) is oforms. So it is s upposed that PKC could be as s ociated with fibrosis in liver. METHODS: We investigated the correlation of PKC is oforms and It ocell activity in the course of hepatic fibrosis using TAA induced rat liver cirrhosis model. We used six week- old male rats , and administered 0.03% TAA in drinking water. The animals were sacrificed at 9, 20, and 30 weeks after TAA administration. The degree of hepatic fibrosis was evaluated by measuring the total amount of collagen.-SMA immunohist ochemical st aining of liver tissue was done to determine the Ito cell activity. The expression pattern of PKC isoforms was investigated by West ern blotting. RESULTS: In TAA- treated group, collagen cont ent and Ito cell activity did not increase until 30 weeks and 20 weeks of treatment , respectively, while in control group collagen cont ent and Ito cell activity were not detected. Collagen content showed linear correlation with Ito cell activity. This implied that the proliferation of activated Ito cells was prior to the increase of collagen content. In view of expression pattern of PKC is oforms, PKC alpha showed no difference in TAA- treated group and control group. In TAA-treated group, PKCbeta1 exhibited increased level of expression in both particulate and cytosolic forms at 9 weeks, while PKCdelta and PKC epsilon showed striking shift to particulated form. After 20 weeks, all of the PKC beta1, delta, and epsilon degenerated and showed remarkably decreased level of expression. This suggested PKC alpha had no relation to hepatic fibrosis,while PKC beta1, delta, and epsilon, showing activity at 9 weeks, were related to fibrosis og liver. In response to fibrogenic factors, molecules engaged in intracellular signal transduction pathway like PKC beta1, delta, and epsilon, began to change prior to the increase of Ito cell activity, morphologic changes and alterations of collagen content. CONCLUSION: Our results strongly suggest that the activity of PKC isoforms play an important role in early step of hepatic fibrosis, while accompanying Ito cell activity do in later step.
Animals
;
Collagen
;
Cytosol
;
Drinking Water
;
Fibrosis
;
Hepatic Stellate Cells
;
Humans
;
Liver Cirrhosis*
;
Liver*
;
Male
;
Protein Isoforms
;
Protein Kinase C-epsilon
;
Protein Kinases
;
Rats
;
Signal Transduction
;
Strikes, Employee
;
Thioacetamide
;
Transcription Factors
4.Utilization characteristics of health care service for rheumatoid arthritis patients in Korea.
Kyoung Ja CHO ; Seong Ho JANG ; Soo Kon LEE ; Won Su DOH
Yonsei Medical Journal 1998;39(3):247-251
The purpose of this study was to determine the factors which were responsible for delaying early diagnosis and optimal management of rheumatoid arthritis (RA) in Korea. We interviewed 109 outpatients diagnosed as RA being treated by rheumatologists, and we eventually analyzed 98 patients' data. The median length of time from symptom onset to the first visit to a medical doctor, to diagnosis, and visiting a rheumatologist were 8 weeks, 23 weeks, and 42 months respectively. The subspecialist with whom the patients consulted with for the longest time before visiting a rheumatologist were an orthopaedic surgeon for 51 patients, a Chinese herbal doctor for 19 patients, and a pharmacist for 16 patients. For early diagnosis and optimal management of RA in Korea, we believe that it is necessary to reduce the use of unconventional medical services such as Chinese herbal medicine and nonprescribed medication, and to emphasize rheumatologic and rehabilitative care in the early stage.
Adult
;
Alternative Medicine/utilization
;
Arthritis, Rheumatoid/therapy*
;
Arthritis, Rheumatoid/rehabilitation
;
Female
;
Health Services/utilization*
;
Human
;
Korea
;
Male
;
Middle Age
;
Rheumatology/methods
5.Detection of Tigecycline Resistance in Acinetobacter baumannii: The Discrepancy between the Minimal Inhibitory Concentration Method and the Disk Diffusion Test
Young Ah KIM ; Choong Soon LEE ; Kyoung Ja JANG
Journal of Laboratory Medicine and Quality Assurance 2024;46(3):163-166
Background:
The emergence of tigecycline-resistant Acinetobacter baumannii has been reported, and the need for tigecycline susceptibility testing in this strain is increasing. However, neither the Clinical & Laboratory Standards Institute, nor the European Commission on Antimicrobial Susceptibility Testing have provided definitive criteria for tigecycline susceptibility testing of A. baumannii. In this study, the disk diffusion method and the minimal inhibitory concentration (MIC) method were com pared to verify conventionally used Food and Drug Administration-identified interpretive criteria to detect tigecycline resistance of A. baumannii.
Methods:
Forty-four strains of A. baumannii with tigecycline resistance were collected through the Kor-GLASS (Korean Global Antimicrobial Resistance Surveillance System) study in 2022 using the disk diffusion test (DDT). This strain was retested with the MIC method using a Sensititre Gram Negative GN6F AST plate (Thermo Fisher Scientific, USA) to confirm tigecycline resistance. The confirmed strain was subjected to whole genome analysis to elucidate the tigecycline resistance mechanism.
Results:
Only one of the 44 isolates identified as resistant to tigecycline by the DDT showed resistance with the MIC method, thus the concordance rate of the two methods was 2.3% (1/44). Sequence type 195 strain, carrying bla OXA23 was identified. This strain had no resistance genes of the tetracycline family but had resistance genes to other antimicrobial families.
Conclusions
Discrepancy of the tigecycline susceptibility test of A. baumannii was identified. To detect tigecycline resistance of A. baumannii, more reliable methods are required.
6.Detection of Tigecycline Resistance in Acinetobacter baumannii: The Discrepancy between the Minimal Inhibitory Concentration Method and the Disk Diffusion Test
Young Ah KIM ; Choong Soon LEE ; Kyoung Ja JANG
Journal of Laboratory Medicine and Quality Assurance 2024;46(3):163-166
Background:
The emergence of tigecycline-resistant Acinetobacter baumannii has been reported, and the need for tigecycline susceptibility testing in this strain is increasing. However, neither the Clinical & Laboratory Standards Institute, nor the European Commission on Antimicrobial Susceptibility Testing have provided definitive criteria for tigecycline susceptibility testing of A. baumannii. In this study, the disk diffusion method and the minimal inhibitory concentration (MIC) method were com pared to verify conventionally used Food and Drug Administration-identified interpretive criteria to detect tigecycline resistance of A. baumannii.
Methods:
Forty-four strains of A. baumannii with tigecycline resistance were collected through the Kor-GLASS (Korean Global Antimicrobial Resistance Surveillance System) study in 2022 using the disk diffusion test (DDT). This strain was retested with the MIC method using a Sensititre Gram Negative GN6F AST plate (Thermo Fisher Scientific, USA) to confirm tigecycline resistance. The confirmed strain was subjected to whole genome analysis to elucidate the tigecycline resistance mechanism.
Results:
Only one of the 44 isolates identified as resistant to tigecycline by the DDT showed resistance with the MIC method, thus the concordance rate of the two methods was 2.3% (1/44). Sequence type 195 strain, carrying bla OXA23 was identified. This strain had no resistance genes of the tetracycline family but had resistance genes to other antimicrobial families.
Conclusions
Discrepancy of the tigecycline susceptibility test of A. baumannii was identified. To detect tigecycline resistance of A. baumannii, more reliable methods are required.
7.Detection of Tigecycline Resistance in Acinetobacter baumannii: The Discrepancy between the Minimal Inhibitory Concentration Method and the Disk Diffusion Test
Young Ah KIM ; Choong Soon LEE ; Kyoung Ja JANG
Journal of Laboratory Medicine and Quality Assurance 2024;46(3):163-166
Background:
The emergence of tigecycline-resistant Acinetobacter baumannii has been reported, and the need for tigecycline susceptibility testing in this strain is increasing. However, neither the Clinical & Laboratory Standards Institute, nor the European Commission on Antimicrobial Susceptibility Testing have provided definitive criteria for tigecycline susceptibility testing of A. baumannii. In this study, the disk diffusion method and the minimal inhibitory concentration (MIC) method were com pared to verify conventionally used Food and Drug Administration-identified interpretive criteria to detect tigecycline resistance of A. baumannii.
Methods:
Forty-four strains of A. baumannii with tigecycline resistance were collected through the Kor-GLASS (Korean Global Antimicrobial Resistance Surveillance System) study in 2022 using the disk diffusion test (DDT). This strain was retested with the MIC method using a Sensititre Gram Negative GN6F AST plate (Thermo Fisher Scientific, USA) to confirm tigecycline resistance. The confirmed strain was subjected to whole genome analysis to elucidate the tigecycline resistance mechanism.
Results:
Only one of the 44 isolates identified as resistant to tigecycline by the DDT showed resistance with the MIC method, thus the concordance rate of the two methods was 2.3% (1/44). Sequence type 195 strain, carrying bla OXA23 was identified. This strain had no resistance genes of the tetracycline family but had resistance genes to other antimicrobial families.
Conclusions
Discrepancy of the tigecycline susceptibility test of A. baumannii was identified. To detect tigecycline resistance of A. baumannii, more reliable methods are required.
8.Detection of Tigecycline Resistance in Acinetobacter baumannii: The Discrepancy between the Minimal Inhibitory Concentration Method and the Disk Diffusion Test
Young Ah KIM ; Choong Soon LEE ; Kyoung Ja JANG
Journal of Laboratory Medicine and Quality Assurance 2024;46(3):163-166
Background:
The emergence of tigecycline-resistant Acinetobacter baumannii has been reported, and the need for tigecycline susceptibility testing in this strain is increasing. However, neither the Clinical & Laboratory Standards Institute, nor the European Commission on Antimicrobial Susceptibility Testing have provided definitive criteria for tigecycline susceptibility testing of A. baumannii. In this study, the disk diffusion method and the minimal inhibitory concentration (MIC) method were com pared to verify conventionally used Food and Drug Administration-identified interpretive criteria to detect tigecycline resistance of A. baumannii.
Methods:
Forty-four strains of A. baumannii with tigecycline resistance were collected through the Kor-GLASS (Korean Global Antimicrobial Resistance Surveillance System) study in 2022 using the disk diffusion test (DDT). This strain was retested with the MIC method using a Sensititre Gram Negative GN6F AST plate (Thermo Fisher Scientific, USA) to confirm tigecycline resistance. The confirmed strain was subjected to whole genome analysis to elucidate the tigecycline resistance mechanism.
Results:
Only one of the 44 isolates identified as resistant to tigecycline by the DDT showed resistance with the MIC method, thus the concordance rate of the two methods was 2.3% (1/44). Sequence type 195 strain, carrying bla OXA23 was identified. This strain had no resistance genes of the tetracycline family but had resistance genes to other antimicrobial families.
Conclusions
Discrepancy of the tigecycline susceptibility test of A. baumannii was identified. To detect tigecycline resistance of A. baumannii, more reliable methods are required.
9.Detection of Tigecycline Resistance in Acinetobacter baumannii: The Discrepancy between the Minimal Inhibitory Concentration Method and the Disk Diffusion Test
Young Ah KIM ; Choong Soon LEE ; Kyoung Ja JANG
Journal of Laboratory Medicine and Quality Assurance 2024;46(3):163-166
Background:
The emergence of tigecycline-resistant Acinetobacter baumannii has been reported, and the need for tigecycline susceptibility testing in this strain is increasing. However, neither the Clinical & Laboratory Standards Institute, nor the European Commission on Antimicrobial Susceptibility Testing have provided definitive criteria for tigecycline susceptibility testing of A. baumannii. In this study, the disk diffusion method and the minimal inhibitory concentration (MIC) method were com pared to verify conventionally used Food and Drug Administration-identified interpretive criteria to detect tigecycline resistance of A. baumannii.
Methods:
Forty-four strains of A. baumannii with tigecycline resistance were collected through the Kor-GLASS (Korean Global Antimicrobial Resistance Surveillance System) study in 2022 using the disk diffusion test (DDT). This strain was retested with the MIC method using a Sensititre Gram Negative GN6F AST plate (Thermo Fisher Scientific, USA) to confirm tigecycline resistance. The confirmed strain was subjected to whole genome analysis to elucidate the tigecycline resistance mechanism.
Results:
Only one of the 44 isolates identified as resistant to tigecycline by the DDT showed resistance with the MIC method, thus the concordance rate of the two methods was 2.3% (1/44). Sequence type 195 strain, carrying bla OXA23 was identified. This strain had no resistance genes of the tetracycline family but had resistance genes to other antimicrobial families.
Conclusions
Discrepancy of the tigecycline susceptibility test of A. baumannii was identified. To detect tigecycline resistance of A. baumannii, more reliable methods are required.
10.Enhanced expression of the c-myc protooncogene in human intracranial meningiomas.
Jong Hyun KIM ; Seung Hoon LEE ; Kyoung Ja CHO ; Ja Jun JANG ; Suk Il HONG ; Jhin Oh LEE
Journal of Korean Medical Science 1993;8(1):68-72
We examined the alteration and expression of c-myc protooncogene in 11 human intracranial meningiomas using Southern blot, Northern blot and immunohistochemical techniques. Southern blot showed neither amplification nor rearrangement but Northern blot and immunohistochemical study revealed enhanced expression of the c-myc gene. Immunohistochemically, c-myc product was found in all of the 11 cases and seven of these cases showed an above moderate degree of immunoreaction in semiquantitative analysis. Loss of heterozygosity at IGLC2 locus on chromosome 22 was detected in four of the 8 informative cases. But extent and intensity of immunoreactivity did not correlated with loss of heterozygosity on chromosome 22. These genetic changes may play important roles in the pathogenesis of human intracranial meningioma.
Adult
;
Blotting, Southern
;
Female
;
*Gene Expression Regulation, Neoplastic
;
*Genes, myc
;
Humans
;
Immunohistochemistry
;
Male
;
Meningeal Neoplasms/*genetics
;
Meningioma/*genetics
;
Middle Aged