1.The role of the hamstrings as antagonists of quaadriceps inmaintaining knee joint stability.
Koon Soon KANG ; Jun Seop JAHNG ; Jae Ho MOON ; Hui Wan PARK ; Kyu Hyun YANG ; Byung You JANG
The Journal of the Korean Orthopaedic Association 1991;26(3):945-949
No abstract available.
Knee Joint*
;
Knee*
2.Early Results of One-Stage Correction for Hip Instability in Cerebral Palsy.
Hui Taek KIM ; Jae Hoon JANG ; Jae Min AHN ; Jong Seo LEE ; Dong Joon KANG
Clinics in Orthopedic Surgery 2012;4(2):139-148
BACKGROUND: We evaluated the clinical and radiological results of one-stage correction for cerebral palsy patients. METHODS: We reviewed clinical outcomes and radiologic indices of 32 dysplastic hips in 23 children with cerebral palsy (13 males, 10 females; mean age, 8.6 years). Ten hips had dislocation, while 22 had subluxation. Preoperative Gross Motor Function Classification System (GMFCS) scores of the patients were as follows; level V (13 patients), level IV (9), and level III (1). Acetabular deficiency was anterior in 5 hips, superolateral in 7, posterior in 11 and mixed in 9, according to 3 dimensional computed tomography. The combined surgery included open reduction of the femoral head, release of contracted muscles, femoral shortening varus derotation osteotomy and the modified Dega osteotomy. Hip range of motion, GMFCS level, acetabular index, center-edge angle and migration percentage were measured before and after surgery. The mean follow-up period was 28.1 months. RESULTS: Hip abduction (median, 40degrees), sitting comfort and GMFCS level were improved after surgery, and pain was decreased. There were two cases of femoral head avascular necrosis, but no infection, nonunion, resubluxation or redislocation. All radiologic indices showed improvement after surgery. CONCLUSIONS: A single event multilevel surgery including soft tissue, pelvic and femoral side correction is effective in treating spastic dislocation of the hip in cerebral palsy.
Adolescent
;
Arthroplasty/*methods
;
Cerebral Palsy/*complications
;
Child
;
Child, Preschool
;
Female
;
Hip Dislocation/*etiology/*surgery
;
Hip Joint/pathology/radiography/*surgery
;
Humans
;
Male
;
Osteotomy
;
Pain/etiology
;
Range of Motion, Articular
;
Tomography, X-Ray Computed
3.Parsing KEGG XML Files to Find Shared and Duplicate Compounds Contained in Metabolic Pathway Maps: A Graph-Theoretical Perspective.
Sung Hui KANG ; Myung Ha JANG ; Jiyoung WHANG ; Hyun Seok PARK
Genomics & Informatics 2008;6(3):147-152
The basic graph layout technique, one of many visualization techniques, deals with the problem of positioning vertices in a way to maximize some measure of desirability in a graph. The technique is becoming critically important for further development of the field of systems biology. However, applying the appropriate automatic graph layout techniques to the genomic scale flow of metabolism requires an understanding of the characteristics and patterns of duplicate and shared vertices, which is crucial for bioinformatics software developers. In this paper, we provide the results of parsing KEGG XML files from a graph-theoretical perspective, for future research in the area of automatic layout techniques in biological pathway domains.
Computational Biology
;
Metabolic Networks and Pathways
;
Systems Biology
4.Overlap Syndrome of Antisynthetase Syndrome and Rheumatoid Arthritis: A Case Report.
Hui Won JANG ; You Jung HA ; Yoon KANG ; Kwang Hoon LEE ; Yong Beom PARK ; Soo Kon LEE
Korean Journal of Medicine 2011;81(5):673-679
The antisynthetase syndrome is characterized by anti-Jo-1 antibody production, interstitial lung disease, inflammatory muscle disease, and, in many cases, fever, polyarthritis, Raynaud's phenomenon, and mechanic's hands. Joint signs and symptoms occur in up to 90% of patients with antisynthetase syndrome, occasionally as the initial manifestations. Although visual inspection of the hands shows changes that are highly suggestive of rheumatoid arthritis, notable differences exist. Antisynthetase syndrome is a predominantly nonerosive arthropathy with subluxations of the distal interphalangeal joints. It manifests as overlap syndrome with other connective tissue diseases. However, overlap syndrome of antisynthetase syndrome and rheumatoid arthritis is rare. We treated a 51-year-old male patient with overlap syndrome of antisynthetase syndrome and rheumatoid arthritis, and report the case with a review of the literature.
Antibodies, Antinuclear
;
Antibody Formation
;
Arthritis
;
Arthritis, Rheumatoid
;
Connective Tissue Diseases
;
Fever
;
Hand
;
Humans
;
Joints
;
Lung Diseases, Interstitial
;
Male
;
Middle Aged
;
Myositis
;
Polymyositis
5.A Case of Short Arm Deletion and Long Arm Duplication at Chromosome 3.
Seung Hyun KONG ; Jeong Il SEO ; Jang Hui KANG ; So Young JUNG ; Ji Sun MOK
Korean Journal of Pediatrics 2005;48(12):1389-1393
The long arm duplication of chromosome 3 was reported for the first time in 1966 by Falek et al., and Hirschhorn et al. came to identify the duplication of 3q21--> qter region in 1973. In most cases of duplication 3q syndrome patients, pure duplication of 3qter is believed to be rare and is often reported accompanied with deletion of another segment of the chromosome. Approximately 75 percent of parents of the patient in the meantime have been demonstrated to have unbalanced translocations or inversions of the chromosome. Partial deletion of the distal part of the short arm of chromosome 3 was first reported by Verjaal and De Nef in 1978 and terminal deletion of chromosome 3 (3p25- qter) has been observed in most cases. In karyotyping of chromosomes of immature infants showing the manifestations of flat occiputs, low set ears, hypertelorism, broad nasal roots, thin lips, web necks, hypotonia, hypertrichosis skin, cryptorchidism etc, we experienced a case diagnosed as 46, XY, rec (3) dup (3) (q21) del (3) (p25) inv (3) (p25q21).
Infant
;
Male
;
Female
;
Humans
6.The Relationship between Life Style, Menstrual Attitude and Premenstrual Syndrome in Nursing Students.
Ju Eun SONG ; Hyun Ju CHAE ; Woo Hee JANG ; Yeon Hui PARK ; Kang Eun LEE ; Sun Hee LEE ; Han A JANG ; Ji Hye JEON ; Min Sun JUNG
Korean Journal of Women Health Nursing 2013;19(2):119-128
PURPOSE: The purpose of this study was to identify the relationships between life style, menstrual attitude and premenstrual syndrome in nursing students. METHODS: The study participants were 246 nursing students of a university in Gyeunggi province. Data were collected by a self-administered questionnaire from May to June, 2012. Collected data were analyzed using the SPSS/WIN 20.0 program with descriptive statistics, Pearson correlation coefficient, t-test, one-way ANOVA and Scheffe test. RESULTS: Students who had undesirable alcohol habits (r=.15, p=.020) and negative menstrual attitude (r=.17, p=.009) experienced more a severe premenstrual syndrome (PMS). Students with dysmenorrhea had more severe PMS (F=12.41, p<.001) and a negative menstrual attitude (F=6.18, p<.001). CONCLUSION: These finding suggest that PMS would be alleviated by nursing interventions to improve alcohol habits and decrease negative menstrual attitudes, and nursing interventions for dysmenorrhea would be helpful in PMS management in nursing students. Further studies on the development of nursing interventions related to these factors are needed for PMS management.
Dysmenorrhea
;
Female
;
Humans
;
Life Style
;
Menstruation
;
Premenstrual Syndrome
;
Surveys and Questionnaires
;
Students, Nursing
7.New Bone Formation Following Transplantation of Stem Cells and Nanoscale Hydroxyapatite Scaffold Materials into Rabbit Long Bone Defects.
Nam Wook KANG ; Hui Taek KIM ; Jeong Han KANG ; Jong Seo LEE ; Tae Young AHN ; Eun Suk JUN ; Hee Kyung CHANG ; Seok Pil JANG ; Jong Kook LEE
The Journal of the Korean Orthopaedic Association 2011;46(1):18-27
PURPOSE: We observed new bone formation following the transplantation of allogenic periosteum-derived stem cells and different sizes of hydroxyapatite (HA) scaffold materials into rabbit long-bone defects. MATERIALS AND METHODS: Thirty-two white rabbits were grouped according to the material transplanted into their tibial bone defects: group 1 (microscale HA only); group 2 (nanoscale HA only); group 3 (microscale HA plus stem cells); and group 4 (nanoscale HA plus stem cells). Viscosity was controlled by the relative amounts of HA and agar. After surgery, radiologic, microscopic, and biochemical observations were performed weekly for 8 weeks. RESULTS: Nanoscale HA (groups 2 and 4) provided better bone formation than microscale HA (groups 1 and 3). The rabbits that had been transplanted with nanoscale HA plus stem cells (group 4) had more homogeneous bone formation during the natural repair process than the other groups. CONCLUSION: Further study is required using nanoscale HA plus organic substance and stem cells, which are more similar to human bone structure, for better bone formation.
Agar
;
Durapatite
;
Humans
;
Osteogenesis
;
Rabbits
;
Stem Cells
;
Transplants
;
Viscosity
8.Identification of Novel Methylation Markers in Hepatocellular Carcinoma using a Methylation Array.
So Hyun SHIN ; Baek Hui KIM ; Ja June JANG ; Kyung Suk SUH ; Gyeong Hoon KANG
Journal of Korean Medical Science 2010;25(8):1152-1159
Promoter CpG island hypermethylation has become recognized as an important mechanism for inactivating tumor suppressor genes or tumor-related genes in human cancers of various tissues. Gene inactivation in association with promoter CpG island hypermethylation has been reported to be four times more frequent than genetic changes in human colorectal cancers. Hepatocellular carcinoma is also one of the human cancer types in which aberrant promoter CpG island hypermethylation is frequently found. However, the number of genes identified to date as hypermethylated for hepatocellular carcinoma (HCC) is fewer than that for colorectal cancer or gastric cancer, which can be attributed to fewer attempts to perform genome-wide methylation profiling for HCC. In the present study, we used bead-array technology and coupled methylation-specific PCR to identify new genes showing cancer-specific methylation in HCC. Twenty-four new genes have been identified as hypermethylated at their promoter CpG island loci in a cancer-specific manner. Of these, TNFRSF10C, HOXA9, NPY, and IRF5 were frequently hypermethylated in hepatocellular carcinoma tissue samples and their methylation was found to be closely associated with inactivation of gene expression. Further study will be required to elucidate the clinicopathological implications of these newly found DNA methylation markers in hepatocellular carcinoma.
Antimetabolites, Antineoplastic/therapeutic use
;
Azacitidine/analogs & derivatives/therapeutic use
;
Carcinoma, Hepatocellular/drug therapy/*genetics
;
Cell Line, Tumor
;
CpG Islands
;
*DNA Methylation
;
GPI-Linked Proteins/genetics
;
Gene Expression Profiling
;
Homeodomain Proteins/genetics
;
Humans
;
Interferon Regulatory Factors/genetics
;
Liver Neoplasms/drug therapy/*genetics
;
Neuropeptide Y/genetics
;
Oligonucleotide Array Sequence Analysis
;
Promoter Regions, Genetic
;
Tumor Necrosis Factor Decoy Receptors/genetics
9.A Case of Rapidly Developed Obesity Hypoventilation Syndrome in a Patient with Kyphoscoliosis.
Min Young KIM ; Jee Sun JEONG ; Yu Na JANG ; Se Eun GO ; Sang Haak LEE ; Hwa Sik MOON ; Hyeon Hui KANG
Sleep Medicine and Psychophysiology 2015;22(1):30-34
Obesity hypoventilation syndrome (OHS) is characterized by severe obesity, excessive daytime sleepiness, hypoxemia and hypercapnea. Because OHS mimics pulmonary hypertension or cor pulmonale, clinicians should recognize and treat this syndrome appropriately. A 58-year-old female visited the emergency room because of dyspnea. She was obese and had kyphoscoliosis. The patient also experienced snoring, recurrent choking during sleep and daytime hypersomnolence which worsened after gaining weight in the recent year. The arterial blood gas analysis showed she experienced hypoxemia and hypercapnea not only during nighttime but also daytime. We suspected OHS and the patient underwent polysomnography to confirm whether obstructive sleep apnea was present. During the polysomnography test, sleep obstructive apnea was observed and apnea-hypopnea index was 9.2/hr. The patient was treated with bilevel positive airway pressure therapy (BiPAP). After BiPAP for 4 days, hypoxemia and hypercapnia were resolved and she is currently well without BiPAP. We report a case successfully treated with clinical improvement by presuming OHS early in a patient who had typical OHS symptoms, even while having other conditions which could cause hypoventilation.
Airway Obstruction
;
Anoxia
;
Apnea
;
Blood Gas Analysis
;
Disorders of Excessive Somnolence
;
Dyspnea
;
Emergency Service, Hospital
;
Female
;
Humans
;
Hypercapnia
;
Hypertension, Pulmonary
;
Hypoventilation
;
Middle Aged
;
Obesity Hypoventilation Syndrome*
;
Obesity, Morbid
;
Polysomnography
;
Pulmonary Heart Disease
;
Sleep Apnea, Obstructive
;
Snoring
10.A case of adrenal adenoma with concurrent Cushing's syndrome and hyperaldosteronism.
Young Geun HYUN ; Hui Kyung JEON ; Yu Bae AHN ; Hoon Joon PARK ; Joon Wook LEE ; Jang Seoung CHAE ; Sung Koo KANG ; Jeong Soo KIM ; Ki Tae KIM ; Seung Ho HAN
Korean Journal of Medicine 2001;61(3):270-275
Cushing's syndrome is produced by the hypersecretion of adrenal glucocorticoids and is characterized by moon face, central obesity, disappearance of diurnal variation of plasma cortisol and unsuppressibility of plasma cortisol by low-dose dexamethasone. On the other hand, hyperaldosteronism is produced by the hypersecretion of aldosterone and is characterized by hypertension and hypokalemia. We report a rare case of adrenal adenoma with concurrent hypercortisolism and hyperaldosteronism manifestated with hypertension, cushingoid appearance, left adrenal mass with low-normal plasma potassium. Laparoscopic unilateral tumor excision was performed and hypertension disappeared after the operation.
Adenoma*
;
Aldosterone
;
Cushing Syndrome*
;
Dexamethasone
;
Glucocorticoids
;
Hand
;
Hydrocortisone
;
Hyperaldosteronism*
;
Hypertension
;
Hypokalemia
;
Obesity, Abdominal
;
Plasma
;
Potassium