1.Arthroscopy - guided Fixation of Patella Fractures.
Jeung Tak SUH ; Pyung Joo YUN ; Chong Il YOO
Journal of the Korean Knee Society 1997;9(1):103-107
Fractures of the patella are intra-articular fractures of a sesamoid bone. The goal of treatment is to restore the function of the extensor mechanism and congtvity of the articular surface of the knee. So postoperative traumatic arthritis is minimized by an accurate reduction of the articular surfaces. We analyzed nine cases of the patella fractures which were treated by the use of arthroscopy to allow visualization of and working inside of joints, and the use of the image-intensifier fluoroscope to allow real-time vi.sualization of the skeleton. The results were as follows The fixation of patelia fractures using an arthroscopy could be applied to transverse or vertical fractures without comminution and severe osteoporosis. 2. In the treatment of two types of patella fractures (simple transverse e rnarginal vertical fractures without comminution), clinically satisfactory results were obtained through the accurate reduction of articular surface using an arthroscopy and image intensifier.
Arthritis
;
Arthroscopy*
;
Intra-Articular Fractures
;
Joints
;
Knee
;
Osteoporosis
;
Patella*
;
Sesamoid Bones
;
Skeleton
2.Enhanced Oncolytic Effect and Anti-Tumor Effect of Replication Competent Adenovirus with Double Mutation in E1A & E1B Regions.
Jaesung KIM ; Kyung Ju CHOI ; Pyung Hwan KIM ; Joo Hang KIM ; Joo Hyuk SOHN ; Chae Ok YUN
Journal of Bacteriology and Virology 2005;35(2):113-124
Gene-modified replication-competent adenoviruses (Ads) are emerging as a promising new modality for the treatment of cancer. We have previously shown that E1B 19kDa and E1B 55kDa gene deleted Ad (Ad-deltaE1B19/55) exhibits improved tumor-specific replication and cell lysis, leading to potent anti-tumor effect. As an additional effort to increase cancer cell-selectivity of replicating adenovirus, we have first generated eleven E1A-mutant Ads (Ad-mt#1~#11) with deletion or substitution in retinoblastoma (Rb) binding sites of E1A. Of these viruses, Ad-mt#7 demonstrated significantly improved cytopathic effect (CPE) and viral replication in a cancer cell-specific manner. To further increase the cancer cell-specific killing effect of Ad-mt#7, both E1B 19kDa and E1B 55kDa genes were deleted, resulting in an Ad-deltaE1Bmt7. As assessed using CPE assay, MTT assay, and immunoblot analysis for Ad fiber expression, Ad-deltaE1Bmt7 exerted markedly enhanced cancer cell-specific killing effect as well as viral replication in comparison to either Ad-mt#7 or Ad-deltaE1B19/55. Furthermore, the growth of established human cervical carcinoma in nude mice was significantly suppressed by intratumoral injection of Ad-deltaE1Bmt7. In summary, we have developed an oncolytic adenovirus with significantly improved therapeutic profiles for cancer treatment.
Adenoviridae*
;
Animals
;
Apoptosis
;
Binding Sites
;
Homicide
;
Humans
;
Mice
;
Mice, Nude
;
Retinoblastoma
3.A Case of Fraley's Syndrome with Benign Hematuria.
In Kyoung CHOI ; Sung Ah KIM ; Ji Hong KIM ; Pyung Kil KIM ; Jae Seung LEE ; Hyeon Joo JEONG ; Myoung Jun KIM ; Mi Jin YUN ; Jong Doo LEE
Journal of the Korean Society of Pediatric Nephrology 2002;6(1):97-101
Fraley's syndrome is a disorder of vascular impression on the renal infundibulum which is associated with unexplained disabling flank pain, painless microscopic hematuria, and urinary tract infection. We experienced one case of Fraley's syndrome in a 12-year-old girl whose chief complaint was persistent microscopic hematuria. We report this case with a brief review of related literatures.
Child
;
Female
;
Flank Pain
;
Hematuria*
;
Humans
;
Urinary Tract Infections
4.Esculetin, a Coumarin Derivative, Exhibits Anti-proliferative and Pro-apoptotic Activity in G361 Human Malignant Melanoma.
Young Joo JEON ; Jeong Yun JANG ; Jung Hyun SHIM ; Pyung Keun MYUNG ; Jung Il CHAE
Journal of Cancer Prevention 2015;20(2):106-112
BACKGROUND: Although esculetin, a coumarin compound, is known to induce apoptosis in human cancer cells, the effects and molecular mechanisms on the apoptosis in human malignant melanoma (HMM) cells are not well understood yet. In this study, we investigated the anti-proliferative effects of esculetin on the G361 HMM cells. METHODS: We analyzed the anti-proliferative effects and molecular mechanisms of esculetin on G361 cells by a 3-(4,5-dimethylthiazol- 2-yl)-5-(3-carboxymethoxy phenyl)-2-(4-sulfophenyl)-2H-tetrazolium assay, 4\',6-diamidino-2-phenylindole staining and Western blotting. RESULTS: Esculetin exhibited significant anti-proliferative effects on the HMM cells in a dose-dependent manner. Interestingly, we found that esculetin induced nuclear shrinkage and fragmentation, typical apoptosis markers, by suppression of Sp1 transcription factor (Sp1). Notably, esculetin modulated Sp1 downstream target genes including p27, p21 and cyclin D1, resulted in activation of apoptosis signaling molecules such as caspase-3 and PARP in G361 HMM cells. CONCLUSIONS: Our results clearly demonstrated that esculetin induced apoptosis in the HMM cells by downregulating Sp1 protein levels. Thus, we suggest that esculetin may be a potential anti-proliferative agent that induces apoptotic cell death in G361 HMM cells.
Apoptosis
;
Blotting, Western
;
Caspase 3
;
Cell Death
;
Cyclin D1
;
Humans*
;
Melanoma*
;
Sp1 Transcription Factor
5.Ultrasound-Guided Sciatic Nerve Block for the Treatment of Radiation Therapy Induced Sciatic Neuritis: A case report.
Jun Woo KIM ; Pyung Bok LEE ; Chan Do PARK ; Seong Joo CHOI ; Jong Beom CHOI ; Ji Yun MOON
The Korean Journal of Pain 2009;22(2):186-190
Sciatic nerve block is frequently used for anesthesia or analgesia during lower leg surgery or chronic lower leg pain syndrome. Recently, a lot of ultrasound-guided peripheral nerve block has been reported because there are several benefits compared to blind technique. We performed ultrasound-guided right sciatic nerve block successfully to the patient who has been suffering from right buttock pain after previous radiation therapy.
Analgesia
;
Anesthesia
;
Buttocks
;
Humans
;
Leg
;
Peripheral Nerves
;
Sciatic Nerve
;
Stress, Psychological
6.A Group of Descending Glutamatergic Neurons Activated by Stress in Corticolimbic Regions Project to the Nucleus Accumbens.
Jin Young PARK ; So Young PARK ; Hyejin KWON ; Yumi SONG ; Boin YUN ; Yubin LEE ; Yeryung CHO ; Ahran JOO ; Pyung Lim HAN
Experimental Neurobiology 2018;27(5):387-396
The nucleus accumbens (NAc) is the major component of the ventral striatum that regulates stress-induced depression. The NAc receives dopaminergic inputs from the ventral tegmental area (VTA), and the role of VTA-NAc neurons in stress response has been recently characterized. The NAc also receives glutamatergic inputs from various forebrain structures including the prelimbic cortex (PL), basolateral amygdala (BLA), and ventral hippocampus (vHIP), whereas the role of those glutamatergic afferents in stress response remains underscored. In the present study, we investigated the extent to which descending glutamatergic neurons activated by stress in the PL, BLA, and vHIP project to the NAc. To specifically label the input neurons into the NAc, fluorescent-tagged cholera toxin subunit B (CTB), which can be used as a retrograde neuronal tracer, was injected into the NAc. After two weeks, the mice were placed under restraint for 1 h. Subsequent histological analyses indicated that CTB-positive cells were detected in 170~680 cells/mm² in the PL, BLA, and vHIP, and those CTB-positive cells were mostly glutamatergic. In the PL, BLA, and vHIP regions analyzed, stress-induced c-Fos expression was found in 20~100 cells/mm². Among the CTB-positive cells, 2.6% in the PL, 4.2% in the BLA, and 1.1% in the vHIP were co-labeled by c-Fos, whereas among c-Fos-positive cells, 7.7% in the PL, 19.8% in the BLA, and 8.5% in the vHIP were co-labeled with CTB. These results suggest that the NAc receives a significant but differing proportion of glutamatergic inputs from the PL, BLA, and vHIP in stress response.
Animals
;
Basolateral Nuclear Complex
;
Cholera Toxin
;
Depression
;
Hippocampus
;
Mice
;
Neurons*
;
Nucleus Accumbens*
;
Prosencephalon
;
Ventral Striatum
;
Ventral Tegmental Area
7.The factors associated with longitudinal changes in liver stiffness in patients with chronic hepatitis B.
In Ku YO ; Oh Sang KWON ; Jin Woong PARK ; Jong Joon LEE ; Jung Hyun LEE ; In Sik WON ; Sun Young NA ; Pil Kyu JANG ; Pyung Hwa PARK ; Duck Joo CHOI ; Yun Soo KIM ; Ju Hyun KIM
Clinical and Molecular Hepatology 2015;21(1):32-40
BACKGROUND/AIMS: Liver stiffness (LS) as assessed by transient elastography (TE) can change longitudinally in patients with chronic hepatitis B (CHB). The aim of this study was to identify the factors that improve LS. METHODS: Between April 2007 and December 2012, 151 patients with CHB who underwent two TE procedures with an interval of about 2 years were enrolled. Ninety-six of the 151 patients were treated with nucleos(t)ide analogues [the antiviral therapy (+) group], while the remaining 55 patients were not [the antiviral therapy (-) group]. The two groups of patients were stratified according to whether they exhibited an improvement or a deterioration in LS during the study period (defined as an LS change of < or =0 or >0 kPa, respectively, over a 1-year period), and their data were compared. RESULTS: No differences were observed between the antiviral therapy (+) and (-) groups with respect to either their clinical characteristics or their initial LS. The observed LS improvement was significantly greater in the antiviral therapy (+) group than in the antiviral therapy (-) group (-3.0 vs. 0.98 kPa, P=0.011). In the antiviral therapy (+) group, the initial LS was higher in the LS improvement group (n=63) than in the LS deterioration group (n=33; 7.9 vs. 4.8 kPa, P<0.001). However, there were no differences in any other clinical characteristic. In the antiviral therapy (-) group, the initial LS was also higher in the LS improvement group (n=29) than in the LS deterioration group (n=26; 8.3 vs. 6.5 kPa, P=0.021), with no differences in any other clinical characteristic. CONCLUSIONS: A higher initial LS was the only factor associated with LS improvement in patients with CHB in this study.
Adult
;
Aged
;
Alanine Transaminase/blood
;
Antiviral Agents/therapeutic use
;
DNA, Viral/blood
;
Elasticity Imaging Techniques
;
Female
;
Hepatitis B e Antigens/blood
;
Hepatitis B virus/genetics
;
Hepatitis B, Chronic/drug therapy/pathology/*ultrasonography
;
Humans
;
Logistic Models
;
Longitudinal Studies
;
Male
;
Middle Aged
8.A comparative study among normal saline, water soluble gel and 2% lidocaine gel as a SLIPA lubricant.
Pyung Gul PARK ; Geun Joo CHOI ; Won Joong KIM ; So Young YANG ; Hwa Yong SHIN ; Hyun KANG ; Chong Wha BAEK ; Yong Hun JUNG ; Jin Yun KIM ; Min Su KANG
Korean Journal of Anesthesiology 2014;66(2):105-111
BACKGROUND: This study was designed to find appropriate lubricant for streamed lined liner of pharyngeal airway(TM) (SLIPA(TM)). We evaluated the incidence of sore throat, nausea, vomiting, hoarseness, paresthesia and blood stain after using saline, water soluble gel and 2% lidocaine gel as a SLIPA(TM) lublicant. METHODS: One hundred twenty three patients scheduled for minor surgery to whom the SLIPA(TM) was considered suitable were randomly allocated to one of three groups which receive normal saline, water soluble gel or 2% lidocaine gel as a SLIPA(TM) lublicant. Patients were interviewed at recovery room, post operation 6-12 hour, post operation 18-24 hour about sore throat and other complications. RESULTS: There were no statistical difference in sore throat and blood stain among three groups. Also there were no statistical differences in hoarseness, nausea, vomiting. The incidence of paresthesia in 2% lidocaine gel group was significantly higher than those of the other two groups immediately after operation, but it was resolved after leaving the recovery room. CONCLUSIONS: Our results suggest that normal saline, water soluble gel and 2% lidocaine gel are all available as a SLIPA(TM) lubricant. Size of SLIPA(TM), insertion technique and difficulty of insertion should be further investigated as the main causes of a sore throat and other complications which can occur after the insertion of SLIPA(TM).
Blood Stains
;
Hoarseness
;
Humans
;
Incidence
;
Lidocaine*
;
Nausea
;
Paresthesia
;
Pharyngitis
;
Recovery Room
;
Rivers
;
Surgical Procedures, Minor
;
Vomiting
9.Clinical Features of Non-alcoholic Fatty Liver Disease in Cryptogenic Hepatocellular Carcinoma.
Min Young RIM ; Oh Sang KWON ; Minsu HA ; Ju Seung KIM ; Kwang Il KO ; Dong Kyu KIM ; Pil Kyu JANG ; Jung Yoon HAN ; Pyung Hwa PARK ; Young Kul JUNG ; Duck Joo CHOI ; Yun Soo KIM ; Ju Hyun KIM
The Korean Journal of Gastroenterology 2014;63(5):292-298
BACKGROUND/AIMS: Nonalcoholic fatty liver disease (NAFLD) may be one of the important causes of cryptogenic hepatocellular carcinoma (HCC). The aim of this study was to evaluate whether patients with cryptogenic HCC share clinical features similar to that of NAFLD. METHODS: Cryptogenic HCC was defined as HCC that occurs in patients with the following conditions: HBsAg(-), anti-HCV(-), and alcohol ingestion of less than 20 g/day. All patients diagnosed with cryptogenic HCC from 2005 to 2012 (cryptogenic HCC group), and all patients diagnosed with HBV associated HCC between 2008 and 2012 (HBV-HCC group) were enrolled in the present study. Clinical features, BMI, lipid profiles, presence of diabetes mellitus, hypertension, and metabolic syndrome were compared between the two groups. RESULTS: Cryptogenic HCC group was composed of 35 patients (19 males and 16 females) with a mean age of 70+/-11 years. HBV-HCC group was composed of 406 patients (318 males and 88 females) with a mean age of 56+/-7 years. Patients in the cryptogenic HCC group were older (p=0.001) and female dominant (p=0.042) than those in the HBV-HCC group. There were no differences in the laboratory test results including lipid profiles and Child-Turcotte-Pugh class between the two groups. Patients in the cryptogenic HCC group had higher prevalence of diabetes (37% vs. 17%, p=0.015), hypertension (49% vs. 27%, p=0.051), metabolic syndrome (37% vs. 16%, p=0.001), and higher BMI (25.3 kg/m2 vs. 24.1 kg/m2, p=0.042) than those in the HBV-HCC group. The tumor stage was more advanced (stage III and IV) at diagnosis in the cryptogenic HCC group than in the HBV-HCC group (60% vs. 37%, p=0.007). CONCLUSIONS: Cryptogenic HCC has clinical features similar to that of NAFLD and is diagnosed at a more advanced tumor stage.
Age Factors
;
Aged
;
Body Mass Index
;
Carcinoma, Hepatocellular/*diagnosis/etiology/pathology
;
Diabetes Complications
;
Diabetes Mellitus/pathology
;
Female
;
Hepatitis B/complications
;
Humans
;
Hypertension/complications
;
Lipids/blood
;
Liver Neoplasms/*diagnosis/etiology/pathology
;
Male
;
Metabolic Syndrome X/complications
;
Middle Aged
;
Neoplasm Staging
;
Non-alcoholic Fatty Liver Disease/*diagnosis/pathology
;
Risk Factors
;
Severity of Illness Index
;
Sex Factors
10.The Association between CD14 Polymorphism and Response to Infectious Agents or Heat Shock Protein in Patients with Stable Coronary Artery Disease in Koreans.
Joo Yong HAHN ; Soo Yeon CHOI ; Hyun Ju CHO ; Hwa Pyung KIM ; Hyun Jae KANG ; Bon Kwon KOO ; Nam Joong KIM ; Hyo Soo KIM ; Dae Won SOHN ; Byung Hee OH ; Young Bae PARK ; Yun Shik CHOI
Infection and Chemotherapy 2007;39(1):17-23
BACKGROUND: CD14 is the receptor for lipopolysaccharides and heat shock protein (HSP), which has been suggested being associated with increased risk of coronary artery disease (CAD). We investigated whether the response to infectious agents or HSP is different according to CD14 polymorphism in Koreans. MATERIALS AND METHODS: Antibody titers to Helicobacter pylori, Chlamydia pneumoniae, and human HSP60 (hHSP60) were measured in 48 patients with stable CAD and in 41 healthy controls by ELISA. CD14 genotype was determined by PCR and high-sensitivity C-reactive protein (hs-CRP) was measured. RESULTS: Seropositivity to C. pneumoniae and H. pylori, and antibody titer to hHSP60 were not significantly associated with the presence of CAD. CD14 genotype distribution was 31 TT (35%), 43 CT (48%), and 15 CC (17%). To compare the response to the infectious organism and hHSP60, we divided study population into 3 groups; CAD patients with non-TT genotype (group I, n=30), CAD patients with TT genotype (group II, n=18), and normal controls (group III, n=41). Seropositivity to C. pneumoniae and H. pylori, and antibody titer to hHSP60 were not significantly different among 3 groups. Though hs-CRP level was significantly different among 3 groups, post-Hoc analysis showed that hs-CRP level was not significantly different between group I and group II (group I: 1.6[1.1-3.5] mg/L and group II: 0.35[0.1-2.0] mg/L). Conclusions:This study suggests that the inflammatory responses to infectious organisms and HSP do not differ according to the CD14 genotype in Koreans.
C-Reactive Protein
;
Chlamydophila pneumoniae
;
Coronary Artery Disease*
;
Coronary Vessels*
;
Enzyme-Linked Immunosorbent Assay
;
Genotype
;
Heat-Shock Proteins*
;
Helicobacter pylori
;
Hot Temperature*
;
Humans
;
Lipopolysaccharides
;
Pneumonia
;
Polymerase Chain Reaction