1.Telomerase Activity in Cervical Cancer.
Kyung Ah LEE ; Tae Kee JANG ; Young Jin JANG ; Young Gi LEE ; Doo Jin LEE ; Sung Ho LEE
Korean Journal of Obstetrics and Gynecology 2000;43(2):260-267
OBJECTIVE: Telomerase is a ribonucleoprotein that synthesizes TTAGGG repeats onto chromosome ends. The expression of telomerase is thought to be required for cellular immortality and carcinogenesis. This study was conducted to examine the telomerase activation occurs in cervical carcinogenesis. METHODS: The standard telomeric repeat amplification protocol(TRAP) was used to examine telomerase activity in tissues of 10 normal cervix, 10 carcinoma in situ, and 21 invasive cervical carcinoma. RESULTS: Telomerase activity was detected in tissues of 16/21(76.2%) invasive carcinoma, in 5/10(50.0%) carcinoma in situ, and in 3/10(30.0%) normal cervix. But the degree of telomerase activity in normal cervix was weak. There was significant difference in 3 groups(p<0.05). The results of neoadjuvant chemotherapy in 10 invasive cervical carcinoma were as follows. In 8 cases of which tumor size decreased more than 50%, 5 were positive for telomerase. In 2 cases that didn't respond to chemotherapy by tumor size, 1 was positive for telomerase. There was no significant difference between 2 groups. All of the 5 cases that had pelvic lymph node metastasis revealed positive telomerase activity, and the 11 cases of 16 cases that didn't have pelvic lymph node metastasis were positive for telomerase, but there was no significant difference in 2 groups. The positivity of telomerase activity in clinical stage of invasive cervical carcinoma was 73.3% in stage I(11/15), 75.0% in stage II(3/4), 100% in stage III(1/1), and 100% in stage IV(1/1), but there was no significant difference in each stages. CONCLUSION: Telomerase seems to be uniquely associated with malignant transformation of cervix and can be used as a tumor marker. Additional studies are needed to better clarify the biological significance of telomerase expression in cervical tumorigenesis.
Carcinogenesis
;
Carcinoma in Situ
;
Cervix Uteri
;
Drug Therapy
;
Female
;
Lymph Nodes
;
Neoplasm Metastasis
;
Ribonucleoproteins
;
Telomerase*
;
Uterine Cervical Neoplasms*
2.A Case of Purpura fulminans Caused by Streptococcus pneumoniae.
Jang Su KIM ; Chang Kyu LEE ; In Bum SUH ; Hyeun Ah LEE ; Young Kee KIM ; Kap No LEE
Korean Journal of Clinical Microbiology 1999;2(2):216-219
Purpura fulminans is a potentially disabling and life-threatening disorder characterized by acute onset of progressive cutaneous hemorrhage and necrosis on distal extremities, and disseminated intravascular coagulopathy. We experienced a case of purpura fulminans due to Streptococcus pneumoniae. A 42-year-old women presented with skin petechiae, ecchymosis and gangrene on distal extremities with laboratory evidence of DIC. The latex agglutination test with CSF was positive at Streptococcus pneumoniae. To our knowledge, this is the first report of purpura fulminans caused by Streptococcus pneumoniae in Korea.
Adult
;
Dacarbazine
;
Ecchymosis
;
Extremities
;
Female
;
Gangrene
;
Hemorrhage
;
Humans
;
Korea
;
Latex Fixation Tests
;
Necrosis
;
Purpura Fulminans*
;
Purpura*
;
Sepsis
;
Skin
;
Streptococcus pneumoniae*
;
Streptococcus*
3.Bilateral temporo-mandibular joint dislocation due to complication of oro-facial dyskinesia
Sung Ho Jang ; Ah Young Lee ; Byung Rho Chin ; Han Do Lee
Neurology Asia 2016;21(3):291-293
Oro-facial dyskinesia (OFD) is involuntary, abnormal, uncontrolled and stereotyped movements,
consisting of forehead furrowing, eye opening and closing, smacking and pursing of the lips, lateral
deviation and protrusion of the tongue, and occasionally lateral deviation and protrusion of the jaw.1
OFD is known to have various complications including speech difficulty, chewing and eating disorders,
and social embarrassment; facial muscle stiffness, mucosal and gingival traumatic lesions. In addition,
it may leads to cranio-mandibular joint (TMJ) complications in the presence of intense and prolonged
abnormal movements, with pain and degeneration.1,2 There is no previous report of TMJ dislocation
due to OFD. In this report, we describe a patient who developed bilateral anterior TMJ dislocation
due to OFD which occurred following intra-cranial hemorrhage (ICH).
Movement Disorders
;
Dyskinesias
4.Role of Leukemia Inhibitory Factor in the Effect of Co-Culture on Preimplantation Embryo Develpement.
Kyu Sup LEE ; Sang Woo KIM ; Yong Jin NA ; Young Ah LEE ; Ha Jung KIM ; Sung Kyu JANG
Korean Journal of Obstetrics and Gynecology 2000;43(7):1216-1222
OBJECTIVE: To assess the effect of recombinant human leukemia inhibitory factor on in vitro development of 1-cell ICR mouse embryo. MATERIALS AND METHOD: ICR mice were superovulated with PMSG/hCG and 1-cell stage mouse embryos were recruited. 1-cell mouse embryo were cocultured on human oviductal cells in a CO2 incubator (coculture group) and were cultured on 0.4% BSA+HTF media (control group). And anti-hLIF Ab was added the cocultured group in a different concentration (1pg, 10pg, 100pg, 1ng) and developmental rate was compaired to the control group, and rhLIF was added to the preincubated 0.4% BSA+HTF media in a different concentration (2000U, 1000U, 100U, 10U) and its developmental rate was compaired to group which was cultured on 0.4% BSA+HTF media only. RESULT: 1. The cleavage rate of 2-cell mouse embryo co-cultured with human tubal epithelial cell was significantly higher than that of cultured with media alone (HTF with 0.4% BSA) (p<0.05). 2. When LIF antibody was added to the medium with human tubal epitherlial cell, the mouse embryo could not cleave more than 2-cell in 1 ng of LIF antibody, and less than 1 ng, the cleavage rate was lower than cultured without LIF antibody group(p<0.05). 3. Two cell blocked ICR mouse embryos were developed into four cells under LIF(p<0.05), but no further development was observed. CONCLUSIONS: These results shows that LIF enhances the development of preimplantation embryo, and when rhLIF is applicated in vitro, it has positive effects on the development of early mouse embryo and can help overcoming the two-cell block.
Animals
;
Blastocyst*
;
Coculture Techniques*
;
Embryonic Structures
;
Epithelial Cells
;
Humans
;
Incubators
;
Leukemia Inhibitory Factor*
;
Leukemia*
;
Mice
;
Mice, Inbred ICR
;
Oviducts
5.Factors Related to Unmet Medical Care Needs in Adult Diabetes Patients in Korea
Hye Young JANG ; Mi Ah HAN ; Jong PARK
Health Policy and Management 2021;31(3):328-334
Background:
This study was conducted to investigate factors related to unmet medical needs of medical care in adult diabetes patients and to suggest factors related to unmet medical in Korea.
Methods:
This study used data from the Korea National Health and Nutrition Examination Survey (KNHNES) 2014–2017. The subjects of the study were conducted on patients with unmet medical needs experience among the patients and analyzed using the IBM SPSS ver. 25.0 program (IBM Corp., Armonk, NY, USA).
Results:
Overall, 10.9% of patients had unmet medical needs. Being female, less educated, and lower medical aid were related to unmet medical needs. And subjects with poor subjective health and higher stress level were more likely to report unmet medical needs.
Conclusion
Although comprehensive health insurance coverage, 10.9% of people with diabetes experienced unmet healthcare needs. The results of this study suggest that socioeconomic factors such as low education and medical aid were associated with unmet medical needs.
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.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.