1.Clinical Case Conference.
Dong Ho CHOI ; Jae Min KIM ; Chang Su HAN
Journal of Korean Neuropsychiatric Association 2011;50(5):340-346
No abstract available.
2.An experimental study for calculation of cross sectional area and volume in various objects using auto-CAD(computer aided design).
Chang Ju LEE ; Won Ho CHO ; Ho Guen CHANG ; Su Jung CHOI ; Hyun Cheol YANG
The Journal of the Korean Orthopaedic Association 1991;26(6):1864-1871
No abstract available.
3.Accidentally Diagnosed Myotonic Dystrophy after Cholecystectomy.
Young Kil CHOI ; Chang Su CHOI ; Kwang Hee KIM ; Yoon Jung KIM
Journal of the Korean Surgical Society 2010;79(Suppl 1):S50-S53
Myotonic dystrophy is the most common systemic disease causing myotonia. We report the case of respiratory failure in a patient with myotonic dystrophy after laparoscopic cholecystectomy. We carried out neurologic testing, electromyography and DNA testing in this patient and electromyography in the family of the patient. Through electromyography and DNA testing, this patient was diagnosed with myotonic dystrophy type I. Myotonic dystrophy is characterized by gradual decline of muscle tone and myotonia. It is important that this disease be excluded through preoperative history taking, physical examination and family history taking.
Cholecystectomy
;
Cholecystectomy, Laparoscopic
;
DNA
;
Electromyography
;
Humans
;
Muscles
;
Myotonia
;
Myotonic Dystrophy
;
Physical Examination
;
Respiratory Insufficiency
4.A follow up study on patients with traumatic head injury.
Su Yeol KIM ; Soon Ja CHANG ; Yun Hee KIM ; Son Mi CHOI
Journal of the Korean Academy of Rehabilitation Medicine 1991;15(4):481-488
No abstract available.
Craniocerebral Trauma*
;
Follow-Up Studies*
;
Head*
;
Humans
5.The Use of Xenograft ( Lubboc(r)) for Pelvic Osteotomy in Children.
In Ho CHOI ; Tae Joon CHO ; Su Sung PARK ; Chin Youb CHUNG ; Chang Bum CHANG ; Duk Yong LEE ; Sang Rim KIM
The Journal of the Korean Orthopaedic Association 1998;33(3):550-556
The purpose of this study is to present a novel method of harvesting autogenous bone graft and to analyze the behavior of xenograft used for pelvic osteotomy in young children. Twenty hips of eighteen patients underwent pelvic osteotomies using xenograft (Lubhoc) from Sep. 1993 to Jun. 1996. In fitteen hips, we harvested autogenous bone avoiding damage to the chondroapophysis of iliac crest and t'illed the donor site with the xenograft. It supplemented the autogenous bone at the osteotomy site in eleven hips, and was used as a wedge without autogenous hone in five hips. During the followup, no growth disturbance of iliac crest was found. The xenograft incorporation was satisfactory at the graft donor sites and the osteotomy sites where it supplemented the autogenous bone, however, unsatistactory at the osteotomy sites where it was used alone. Our novel method of harvesting bone graft from young pelvis may help prevent growth disturbance of lilac crest, and Luhhoc is useful as space-filler of donor site and suppiementary to the autograft in pelvic osteotomy of young children.
Autografts
;
Child*
;
Follow-Up Studies
;
Heterografts*
;
Hip
;
Humans
;
Osteotomy*
;
Pelvis
;
Tissue Donors
;
Transplants
6.Two Cases of Ectopic Paragonimiasis Involving the Retroperitoneum and the Eqididymis.
Sung Hoon DO ; Won Jae YANG ; Young Deuk CHOI ; Hyung Ki CHOI ; Su Yeon CHANG ; Ok Hyun CHIN
Korean Journal of Urology 2000;41(5):681-684
No abstract available.
Paragonimiasis*
7.The Development of Antibody-Drug Conjugates for Urothelial Carcinoma Treatment
Da Som CHOI ; Su Jeong KANG ; In Ho CHANG ; Young Wook CHOI
Korean Journal of Urological Oncology 2021;19(1):30-39
Urothelial cancer is the seventh most common cancer among men worldwide. Bacille de Calmette-Guérin is a type of anticancer immunotherapy that has been used to treat targeted bladder cancer, but the number of patients with treatment-refractory advanced urothelial cancer, patients has been increasing recently. To overcome this, enfortumab vedotin (novel nectin-4 targeting antibody-drug conjugate) known as antibody-drug conjugate (ADC), was approved. We describe the clinical development process of ADC and the potential for future development as a bladder cancer treatment.
8.Mechanism of Apoptosis Induced by Ginkgo Biloba Extract(Egb 761) in Oral Cavity Cancer Cell Lines.
Jung Hyun CHANG ; Joo Heon YOON ; Eun Chang CHOI ; Kun Wayn LEE ; Chang Il CHO ; Kyung Su KIM
Korean Journal of Otolaryngology - Head and Neck Surgery 2006;49(12):1181-1187
BACKGROUND AND OBJECTIVES: According to our previous study Ginkgo biloba extract (EGb 761) induces inhibition of cell proliferation and apoptosis in SCC 1483 oral cavity cancer cells. On the other hand, in lipopolysaccharide-stimulated RAW 264.7 cells, activation of mitogen activated protein kinase (MAPK) is the key event in the inhibition of inflammation by EGb 761. Therefore, we have investigated whether MAPK pathway is involved in the apoptotic process by EGb 761 in oral cavity cancer cell lines or not. SUBJECTS AND METHOD: In SCC 1483 oral cavity cancer cell lines, Western blot analysis, Fluorescence-activated cell sorter (FACS) analysis, and transient transfection using MAPK-dominant negative constructs were used. RESULTS: When SCC 1483 oral cavity cancer cell lines were treated with the concentration of 250 microgram/ml EGb 761, activation of extracellular signal-regulated kinase (ERK) and apoptosis were noted. This apoptosis was inhibited by the treatment with ERK inhibitor (PD 98059). In the transiently transfected cells by MAPK/ERK kinase 1 (MEK1)-dominant negative construct, phosphorylations of ERK and p90 ribosomal S 6 protein kinase (RSK1) were inhibited which led to the inhibition of apoptosis by EGb 761. The inhibition of apoptosis was also noted in the transfected cells by RSK1 dominant negative construct and cAMP response element binding protein (CREB)-dominant negative construct. CONCLUSION: In conclusion, the apoptosis of SCC 1483 oral cavity cancer cell lines by EGb 761 is linked to the activation of ERK and it can happen via ERK MAPK/RSK1/CREB signal transduction pathway.
Apoptosis*
;
Blotting, Western
;
Cell Line*
;
Cell Proliferation
;
Cyclic AMP Response Element-Binding Protein
;
Ginkgo biloba*
;
Hand
;
Inflammation
;
Mouth Neoplasms
;
Mouth*
;
Phosphorylation
;
Phosphotransferases
;
Protein Kinases
;
Signal Transduction
;
Transfection
9.The Study of Expression of Proliferating Cell Nuclear Antigen(PCNA) and Nucleolar Organizer Regions(NORs) in Transitional Cell Carcinoma of the Urinary Bladder.
Joon Sun CHOI ; Yang Il PARK ; Byung Kap MIN ; Chang Su PARK
Korean Journal of Urology 1995;36(2):128-134
The expression of two cell proliferation indices, the proliferating cell nuclear antigen( PCNA), using the monoclonal antibody in the immunoperoxidase method, and the nucleolar organizer regions (NORs), using silver nitrate staining technique, were assessed in formalin-fixed paraffin embedded material of transitional cell urinary bladder carcinomas. The aim of our study was to examine comparatively the expression of PCNA and the number of NORs in 37 transitional cell bladder carcinomas and to investigate how they correlate with tumor grade and the disease stage. It was noticed that the PCNA expression rate(%) related to grade was statistically significant only between grades II and III (p<0.05), while that between grades I and II was not statistically significant(p > 0.05). The mean number of AgNORs per nucleus between grades I and II and between grades II and III were statistically significant(p<0.05). As far as the correlation of PCNA expression rate(%) with the stage is concerned, PCNA expression rate (%) was higher in the invasive tumors(p<0.05) than in the superficial tumors and AgNOR Numbers was also greater in the invasive tumors(p <0.05). The linear correlation coefficient between PCNA expression rate (%) and AgNOR counts was 0.52(p <0.001) In conclusion, a considerable relationship was found between the histological grade and each of the two indices used. A good correlation was also demonstrated between each of PCNA expression rate(%) and AgNOR scores to the pathologic stage. Our results suggest that PCNA expressionrate( % ) and AgNOR scores may be prognostic induces in urinary bladder cancer.
Carcinoma, Transitional Cell*
;
Cell Proliferation
;
Nucleolus Organizer Region*
;
Paraffin
;
Proliferating Cell Nuclear Antigen
;
Silver Staining
;
Urinary Bladder Neoplasms
;
Urinary Bladder*
10.A case of 18q-syndrome.
Jun Hee KIM ; Hyung Jong LIM ; Gyoun Won KANG ; Young Yun CHOI ; Tai Ju HWANG ; Chang Su PARK
Korean Journal of Perinatology 1993;4(4):557-563
No abstract available.