1.Topographic distribution of the carcinoma in situ of the uterine cervix.
Young Ran CHUNG ; Jang Soon CHANG ; Ho Sun CHOI ; Ji Soo BYUN
Korean Journal of Obstetrics and Gynecology 1993;36(7):1178-1183
No abstract available.
Carcinoma in Situ*
;
Cervix Uteri*
;
Female
2.Identification of parasite DNA in common bile duct stones by PCR and DNA sequencing.
Ji Sun JANG ; Kyung Ho KIM ; Jae Ran YU ; Soo Ung LEE
The Korean Journal of Parasitology 2007;45(4):301-306
We attempted to identify parasite DNA in the biliary stones of humans via PCR and DNA sequencing. Genomic DNA was isolated from each of 15 common bile duct (CBD) stones and 5 gallbladder (GB) stones. The patients who had the CBD stones suffered from cholangitis, and the patients with GB stones showed acute cholecystitis, respectively. The 28S and 18S rDNA genes were amplified successfully from 3 and/or 1 common bile duct stone samples, and then cloned and sequenced. The 28S and 18S rDNA sequences were highly conserved among isolates. Identity of the obtained 28S D1 rDNA with that of Clonorchis sinensis was higher than 97.6%, and identity of the 18S rDNA with that of other Ascarididae was 97.9%. Almost no intra-specific variations were detected in the 28S and 18S rDNA with the exception of a few nucleotide variations, i.e., substitution and deletion. These findings suggest that C. sinensis and Ascaris lumbricoides may be related with the biliary stone formation and development.
Aged
;
Aged, 80 and over
;
Animals
;
Ascaridida/genetics/isolation & purification
;
Ascaris lumbricoides/genetics/isolation & purification
;
Base Sequence
;
Clonorchis sinensis/genetics/isolation & purification
;
Common Bile Duct/*parasitology
;
DNA, Helminth/*genetics
;
DNA, Ribosomal/genetics
;
Face/parasitology
;
Female
;
Gallbladder/parasitology
;
Gallstones/*parasitology
;
Helminths/genetics/*isolation & purification
;
Humans
;
Male
;
Middle Aged
;
Molecular Sequence Data
;
Polymerase Chain Reaction/*methods
;
RNA, Ribosomal, 18S/genetics
;
RNA, Ribosomal, 28S/genetics
;
Sequence Alignment
3.Early Midterm Results of Laser Assisted Sclerotherapy
Jin Won JUN ; Ji Ran JANG ; Yong Beom BAK ; Seung Jae BYUN
Annals of phlebology 2024;22(1):27-31
Objective:
This study aims to evaluate the effect of treatment for great saphenous vein incompetence with a fourth-generation 1940 nm laser with radial fiber and catheter directed foam sclerotherapy (CDFS) without a tumescent simultaneously. The procedure was termed laser assisted sclerotherapy (LAST). It is a kind of thermochemical ablation.
Methods:
From January 1 to June 30, 2023, 86 GSV cases from 50 patients who underwent LAST at Cheongmac hospital were enrolled in this retrospective study. Endogenous laser ablation (EVLA) was performed in the order of accessary vein, tributaries and truncal vein and then followed by CDFS which was performed with a 3% sodium tetradecyl sulfate (STS) mixed with CO 2 gas at a ratio of 1:4. The degree of pain was measured after procedure at 2 hours after the procedure. Follow-up was conducted at 1 week, 1 month, and 6 months.
Results:
Three of the 86 GSV observed for >6 months showed mild reflux. According to size and number of ablated vessels, various energy level was needed. Three percent STS was used 4.5±0.4 cc and operation time per GSV was about 8±2 minutes. The VAS score was 2.5±0.6 at 2 hours after surgery. The closure rate was 100% at 6 months. Symptoms improved after 6 months in all patients (6.2±1.2 to 0.9±0.2).
Conclusion
LAST showed a good closure rate in the early midterm follow up period. Ablation was possible with less energy compared with EVLA and the pain index was lower at the second hour after procedure.
4.Early Midterm Results of Laser Assisted Sclerotherapy
Jin Won JUN ; Ji Ran JANG ; Yong Beom BAK ; Seung Jae BYUN
Annals of phlebology 2024;22(1):27-31
Objective:
This study aims to evaluate the effect of treatment for great saphenous vein incompetence with a fourth-generation 1940 nm laser with radial fiber and catheter directed foam sclerotherapy (CDFS) without a tumescent simultaneously. The procedure was termed laser assisted sclerotherapy (LAST). It is a kind of thermochemical ablation.
Methods:
From January 1 to June 30, 2023, 86 GSV cases from 50 patients who underwent LAST at Cheongmac hospital were enrolled in this retrospective study. Endogenous laser ablation (EVLA) was performed in the order of accessary vein, tributaries and truncal vein and then followed by CDFS which was performed with a 3% sodium tetradecyl sulfate (STS) mixed with CO 2 gas at a ratio of 1:4. The degree of pain was measured after procedure at 2 hours after the procedure. Follow-up was conducted at 1 week, 1 month, and 6 months.
Results:
Three of the 86 GSV observed for >6 months showed mild reflux. According to size and number of ablated vessels, various energy level was needed. Three percent STS was used 4.5±0.4 cc and operation time per GSV was about 8±2 minutes. The VAS score was 2.5±0.6 at 2 hours after surgery. The closure rate was 100% at 6 months. Symptoms improved after 6 months in all patients (6.2±1.2 to 0.9±0.2).
Conclusion
LAST showed a good closure rate in the early midterm follow up period. Ablation was possible with less energy compared with EVLA and the pain index was lower at the second hour after procedure.
5.Early Midterm Results of Laser Assisted Sclerotherapy
Jin Won JUN ; Ji Ran JANG ; Yong Beom BAK ; Seung Jae BYUN
Annals of phlebology 2024;22(1):27-31
Objective:
This study aims to evaluate the effect of treatment for great saphenous vein incompetence with a fourth-generation 1940 nm laser with radial fiber and catheter directed foam sclerotherapy (CDFS) without a tumescent simultaneously. The procedure was termed laser assisted sclerotherapy (LAST). It is a kind of thermochemical ablation.
Methods:
From January 1 to June 30, 2023, 86 GSV cases from 50 patients who underwent LAST at Cheongmac hospital were enrolled in this retrospective study. Endogenous laser ablation (EVLA) was performed in the order of accessary vein, tributaries and truncal vein and then followed by CDFS which was performed with a 3% sodium tetradecyl sulfate (STS) mixed with CO 2 gas at a ratio of 1:4. The degree of pain was measured after procedure at 2 hours after the procedure. Follow-up was conducted at 1 week, 1 month, and 6 months.
Results:
Three of the 86 GSV observed for >6 months showed mild reflux. According to size and number of ablated vessels, various energy level was needed. Three percent STS was used 4.5±0.4 cc and operation time per GSV was about 8±2 minutes. The VAS score was 2.5±0.6 at 2 hours after surgery. The closure rate was 100% at 6 months. Symptoms improved after 6 months in all patients (6.2±1.2 to 0.9±0.2).
Conclusion
LAST showed a good closure rate in the early midterm follow up period. Ablation was possible with less energy compared with EVLA and the pain index was lower at the second hour after procedure.
6.Early Midterm Results of Laser Assisted Sclerotherapy
Jin Won JUN ; Ji Ran JANG ; Yong Beom BAK ; Seung Jae BYUN
Annals of phlebology 2024;22(1):27-31
Objective:
This study aims to evaluate the effect of treatment for great saphenous vein incompetence with a fourth-generation 1940 nm laser with radial fiber and catheter directed foam sclerotherapy (CDFS) without a tumescent simultaneously. The procedure was termed laser assisted sclerotherapy (LAST). It is a kind of thermochemical ablation.
Methods:
From January 1 to June 30, 2023, 86 GSV cases from 50 patients who underwent LAST at Cheongmac hospital were enrolled in this retrospective study. Endogenous laser ablation (EVLA) was performed in the order of accessary vein, tributaries and truncal vein and then followed by CDFS which was performed with a 3% sodium tetradecyl sulfate (STS) mixed with CO 2 gas at a ratio of 1:4. The degree of pain was measured after procedure at 2 hours after the procedure. Follow-up was conducted at 1 week, 1 month, and 6 months.
Results:
Three of the 86 GSV observed for >6 months showed mild reflux. According to size and number of ablated vessels, various energy level was needed. Three percent STS was used 4.5±0.4 cc and operation time per GSV was about 8±2 minutes. The VAS score was 2.5±0.6 at 2 hours after surgery. The closure rate was 100% at 6 months. Symptoms improved after 6 months in all patients (6.2±1.2 to 0.9±0.2).
Conclusion
LAST showed a good closure rate in the early midterm follow up period. Ablation was possible with less energy compared with EVLA and the pain index was lower at the second hour after procedure.
7.Optimal salt concentration of vehicle for plasmid DNA enhances gene transfer mediated by electroporation.
Min Jae LEE ; Soon Shin CHO ; Hyung Suk JANG ; Young Shin LIM ; Ji Ran YOU ; Jang Won PARK ; Hea Ran SUH ; Jeong A KIM ; Jong Sang PARK ; Duk Kyung KIM
Experimental & Molecular Medicine 2002;34(4):265-272
In vivo electroporation has emerged as a leading technology for developing nonviral gene therapies, and the various technical parameters governing electroporation efficiency have been optimized by both theoretical and experimental analysis. However, most electroporation parameters focused on the electric conditions and the preferred vehicle for plasmid DNA injections has been normal saline. We hypothesized that salts in vehicle for plasmid DNA must affect the efficiency of DNA transfer because cations would alter ionic atmosphere, ionic strength, and conductivity of their medium. Here, we show that half saline (71 mM) is an optimal vehicle for in vivo electroporation of naked DNA in skeletal muscle. With various salt concentrations, two reporter genes, luciferase and beta-galactosidase were injected intramuscularly under our optimal electric condition (125 V/cm, 4 pulses x 2 times, 50 ms, 1 Hz). Exact salt concentrations of DNA vehicle were measured by the inductively coupled plasma-atomic emission spectrometer (ICP-AES) and the conductivity change in the tissue induced by the salt in the medium was measured by Low-Frequency (LF) Impedance Analyzer. Luciferase expression in-creased as cation concentration of vehicle dec-reased and this result can be visualized by X-Gal staining. However, at lower salt concentration, transfection efficiency was diminished because the hypoosmotic stress and electrical injury by low conductivity induced myofiber damage. At optimal salt concentration (71 mM), we observed a 3-fold average increase in luciferase expression in comparison with the normal saline condition (p < 0.01). These results provide a valuable experimental parameter for in vivo gene therapy mediated by electroporation.
Animals
;
Comparative Study
;
DNA/*administration & dosage/metabolism
;
Drug Delivery Systems
;
Electric Conductivity
;
Electroporation/methods
;
Escherichia coli/genetics
;
Female
;
Gene Therapy/*methods
;
*Gene Transfer Techniques
;
Genes, Reporter
;
Injections, Intramuscular
;
Luciferase/metabolism
;
Mice
;
Mice, Inbred BALB C
;
Muscle, Skeletal/drug effects/*metabolism/pathology
;
Osmolar Concentration
;
Plasmids/genetics/*metabolism
;
Sodium Chloride/*pharmacology
;
Transfection
;
Vehicles/*administration & dosage
;
beta-Galactosidase/metabolism
8.Optimal salt concentration of vehicle for plasmid DNA enhances gene transfer mediated by electroporation.
Min Jae LEE ; Soon Shin CHO ; Hyung Suk JANG ; Young Shin LIM ; Ji Ran YOU ; Jang Won PARK ; Hea Ran SUH ; Jeong A KIM ; Jong Sang PARK ; Duk Kyung KIM
Experimental & Molecular Medicine 2002;34(4):265-272
In vivo electroporation has emerged as a leading technology for developing nonviral gene therapies, and the various technical parameters governing electroporation efficiency have been optimized by both theoretical and experimental analysis. However, most electroporation parameters focused on the electric conditions and the preferred vehicle for plasmid DNA injections has been normal saline. We hypothesized that salts in vehicle for plasmid DNA must affect the efficiency of DNA transfer because cations would alter ionic atmosphere, ionic strength, and conductivity of their medium. Here, we show that half saline (71 mM) is an optimal vehicle for in vivo electroporation of naked DNA in skeletal muscle. With various salt concentrations, two reporter genes, luciferase and beta-galactosidase were injected intramuscularly under our optimal electric condition (125 V/cm, 4 pulses x 2 times, 50 ms, 1 Hz). Exact salt concentrations of DNA vehicle were measured by the inductively coupled plasma-atomic emission spectrometer (ICP-AES) and the conductivity change in the tissue induced by the salt in the medium was measured by Low-Frequency (LF) Impedance Analyzer. Luciferase expression in-creased as cation concentration of vehicle dec-reased and this result can be visualized by X-Gal staining. However, at lower salt concentration, transfection efficiency was diminished because the hypoosmotic stress and electrical injury by low conductivity induced myofiber damage. At optimal salt concentration (71 mM), we observed a 3-fold average increase in luciferase expression in comparison with the normal saline condition (p < 0.01). These results provide a valuable experimental parameter for in vivo gene therapy mediated by electroporation.
Animals
;
Comparative Study
;
DNA/*administration & dosage/metabolism
;
Drug Delivery Systems
;
Electric Conductivity
;
Electroporation/methods
;
Escherichia coli/genetics
;
Female
;
Gene Therapy/*methods
;
*Gene Transfer Techniques
;
Genes, Reporter
;
Injections, Intramuscular
;
Luciferase/metabolism
;
Mice
;
Mice, Inbred BALB C
;
Muscle, Skeletal/drug effects/*metabolism/pathology
;
Osmolar Concentration
;
Plasmids/genetics/*metabolism
;
Sodium Chloride/*pharmacology
;
Transfection
;
Vehicles/*administration & dosage
;
beta-Galactosidase/metabolism
9.Validity and Reliability of a Korean Version of Yale Food Addiction Scale for Children (YFAS-C)
Jung Ho KIM ; Ji Hyun SONG ; Ran KIM ; Mi Young JANG ; Hyon Joo HONG ; Hyun Ji KIM ; Sung Hee SHIN
Journal of Korean Academy of Nursing 2019;49(1):59-68
PURPOSE: This study evaluated the psychometric properties of the Korean version of Yale Food Addiction Scale for Children (YFAS-C). METHODS: Participants were 419 young adolescent students (11~15 years old). The content validity of the expert group was calculated as the content validity index (CVI) after the translation and reverse translation process of the 25 items of the YFAS-C. The multitrait-multimethod matrix (MTMM) method was used to verify the construct validity; the generalized linear model (GLM) was used to evaluate the concurrent and incremental validity. Reliability was calculated as Kuder-Richardson-20 (KR-20) and Spearman-Brown coefficients. RESULTS: The CVI of the 25 items was greater than the item-level CVI .80 and the scale-level CVI .90. The Korean version of YFAS-C had verified convergent validity in emotional eating and external eating and discriminant validity in restrained eating. In addition, it had verified concurrent validity in emotional eating and external eating. Finally the incremental validity of the Korean version of YFAS-C was statistically significant on BMI. Reliability was KR-20 α=.69 and the Spearman-Brown coefficient was .64. CONCLUSION: The Korean version of YFAS-C is a valid and reliable scale for measuring the severity of food addiction; it can be a useful scale for preventing obesity by predicting food addiction early.
Adolescent
;
Child
;
Eating
;
Humans
;
Linear Models
;
Methods
;
Obesity
;
Psychometrics
;
Reproducibility of Results
10.Validity and Reliability of a Korean Version of Yale Food Addiction Scale for Children (YFAS-C)
Jung Ho KIM ; Ji Hyun SONG ; Ran KIM ; Mi Young JANG ; Hyon Joo HONG ; Hyun Ji KIM ; Sung Hee SHIN
Journal of Korean Academy of Nursing 2019;49(1):59-68
PURPOSE:
This study evaluated the psychometric properties of the Korean version of Yale Food Addiction Scale for Children (YFAS-C).
METHODS:
Participants were 419 young adolescent students (11~15 years old). The content validity of the expert group was calculated as the content validity index (CVI) after the translation and reverse translation process of the 25 items of the YFAS-C. The multitrait-multimethod matrix (MTMM) method was used to verify the construct validity; the generalized linear model (GLM) was used to evaluate the concurrent and incremental validity. Reliability was calculated as Kuder-Richardson-20 (KR-20) and Spearman-Brown coefficients.
RESULTS:
TheCVI of the 25 items was greater than the item-level CVI .80 and the scale-level CVI .90. The Korean version of YFAS-C had verified convergent validity in emotional eating and external eating and discriminant validity in restrained eating. In addition, it had verified concurrent validity in emotional eating and external eating. Finally the incremental validity of the Korean version of YFAS-C was statistically significant on BMI. Reliability was KR-20 α=.69 and the Spearman-Brown coefficient was .64.
CONCLUSION
The Korean version of YFAS-C is a valid and reliable scale for measuring the severity of food addiction; it can be a useful scale for preventing obesity by predicting food addiction early.