1.Dens Fracture-Nonunion in Ankylosing Spondylitis: A Case Report.
Woo Jin CHO ; Jong Woo CHAE ; Jong Seon RYU ; Jae Ched PARK ; Han CHANG
Journal of Korean Society of Spine Surgery 2007;14(3):197-200
Patients with ankylosing spondylitis are susceptible to fractures, which usually occur in the cervical spine. However, upper spinal fractures, particularly dens fracture-nonunion complicating ankylosing spondylitis, are quite rare. We encountered one such case. The patient was treated with posterior fusion followed by a halovest, which resulted in good conditions.
Humans
;
Spinal Fractures
;
Spine
;
Spondylitis, Ankylosing*
2.Mono-segment Cervical Spondylotic Myelopathy.
Jong Seon RYU ; Jong Woo CHAE ; Woo Jin CHO ; Myung Sang MOON ; Han CHANG
Journal of Korean Society of Spine Surgery 2006;13(4):234-239
STUDY DESIGN: A retrospective follow-up study comparing soft disc cervical myelopathy (Group A) and spondylotic bar cervical myelopathy (Group B). OBJECTIVES: To analyze different factors by comparing preoperative radiological and clinical data of Group A with that of Group B. SUMMARY AND LITERATURE REVIEW: The different causes of cervcal myelopathy resulted in different symptoms and prognoses. MATERIALS AND METHOD: A clinical and radiological analysis of the data in 31 patients who underwent an anterior cervical decompression and fusion was performed to assess the different factors between two groups. The patients were classified into two groups; 20 in Group A and 11 in Group B. Comparisons between the two groups were made in regard to the physical findings, radiological and clinical evaluation. RESULTS: The duration of myelopathy was 3 months in Group A and 8.7months in Group B. Of all cases, 5 cases (25.0%) in group A and 4 cases (36.4%) in group B had myelopathy associated with radiculopathy. Of the 20 cases in group A with myelopathy, 7 cases had a median compression and 13 cases had a paramedian compression on MRI. Of the 11 cases in group B with meylopathy, 9 cases had a median compression and 2 cases had a paramedian compression on MRI. The follow-up MRI of the 14 cases (73.7%) in group A and 2 cases (20.0%) in group B showed spontaneous regression of the T2 WI high signal intensity. CONCLUSION: In degenerative disc disease, the different causes of cervcal myelopathy result in different symptoms and prognoses. However, the treatment of choice in both groups is a one level anterior decompression and fusion.
Decompression
;
Follow-Up Studies
;
Humans
;
Magnetic Resonance Imaging
;
Prognosis
;
Radiculopathy
;
Retrospective Studies
;
Spinal Cord Diseases*
3.Changes of segmental left ventricular wall motion after coronary artery bypass graft surgery ; two-dimensional echocardiographic study.
Soo Yeon WON ; Il Mun JEON ; Myoung Seon PARK ; Myoung Kyu JANG ; Jae Kyu RYU ; Jin Won JEONG ; Yang Kyu PARK ; Ock Kyu PARK ; Jong Bum CHOI
Korean Journal of Medicine 1993;45(6):770-780
No abstract available.
Coronary Artery Bypass*
;
Coronary Vessels*
;
Echocardiography*
4.Argutinic acid, A New Triterpenoid from the Fruits of Actinidia arguta
Se Hwan RYU ; Jong Hoon AHN ; Ayman TURK ; Seon Beom KIM ; Bang Yeon HWANG ; Mi Kyeong LEE
Natural Product Sciences 2024;30(3):208-211
Actinidia arguta, also called as kiwiberry or hardy kiwifruit, is one of the major varieties of kiwi plants. It is small in size and has no hairs on the surface, which making it easy to be consumed. In addition, it can be cultivated in Asia, due to its cold resistance. We have been interested in the beneficial effects of the fruits of A. arguta and investigated the constituents and biological activities. A new triterpenoid, argutinic acid, along with three triterpenoids and three megastigmines were isolated from the fruits of A. arguta. The structures were determined by spectroscopic analysis including NMR, MS, UV and IR. Among the isolated compounds, two triterpenes, argutinic acid (1) and usrolic acid (4) showed α-glucosidase inhibitory activities.
5.Argutinic acid, A New Triterpenoid from the Fruits of Actinidia arguta
Se Hwan RYU ; Jong Hoon AHN ; Ayman TURK ; Seon Beom KIM ; Bang Yeon HWANG ; Mi Kyeong LEE
Natural Product Sciences 2024;30(3):208-211
Actinidia arguta, also called as kiwiberry or hardy kiwifruit, is one of the major varieties of kiwi plants. It is small in size and has no hairs on the surface, which making it easy to be consumed. In addition, it can be cultivated in Asia, due to its cold resistance. We have been interested in the beneficial effects of the fruits of A. arguta and investigated the constituents and biological activities. A new triterpenoid, argutinic acid, along with three triterpenoids and three megastigmines were isolated from the fruits of A. arguta. The structures were determined by spectroscopic analysis including NMR, MS, UV and IR. Among the isolated compounds, two triterpenes, argutinic acid (1) and usrolic acid (4) showed α-glucosidase inhibitory activities.
6.Argutinic acid, A New Triterpenoid from the Fruits of Actinidia arguta
Se Hwan RYU ; Jong Hoon AHN ; Ayman TURK ; Seon Beom KIM ; Bang Yeon HWANG ; Mi Kyeong LEE
Natural Product Sciences 2024;30(3):208-211
Actinidia arguta, also called as kiwiberry or hardy kiwifruit, is one of the major varieties of kiwi plants. It is small in size and has no hairs on the surface, which making it easy to be consumed. In addition, it can be cultivated in Asia, due to its cold resistance. We have been interested in the beneficial effects of the fruits of A. arguta and investigated the constituents and biological activities. A new triterpenoid, argutinic acid, along with three triterpenoids and three megastigmines were isolated from the fruits of A. arguta. The structures were determined by spectroscopic analysis including NMR, MS, UV and IR. Among the isolated compounds, two triterpenes, argutinic acid (1) and usrolic acid (4) showed α-glucosidase inhibitory activities.
7.Argutinic acid, A New Triterpenoid from the Fruits of Actinidia arguta
Se Hwan RYU ; Jong Hoon AHN ; Ayman TURK ; Seon Beom KIM ; Bang Yeon HWANG ; Mi Kyeong LEE
Natural Product Sciences 2024;30(3):208-211
Actinidia arguta, also called as kiwiberry or hardy kiwifruit, is one of the major varieties of kiwi plants. It is small in size and has no hairs on the surface, which making it easy to be consumed. In addition, it can be cultivated in Asia, due to its cold resistance. We have been interested in the beneficial effects of the fruits of A. arguta and investigated the constituents and biological activities. A new triterpenoid, argutinic acid, along with three triterpenoids and three megastigmines were isolated from the fruits of A. arguta. The structures were determined by spectroscopic analysis including NMR, MS, UV and IR. Among the isolated compounds, two triterpenes, argutinic acid (1) and usrolic acid (4) showed α-glucosidase inhibitory activities.
8.A Case Of Dermatomyositis Associated With Combined Small Cell Lung Cancer.
Jeong Seon RYU ; Won Yeon LEE ; Kwang Seon SONG ; Suk Joong YONG ; Kye Chul SHIN ; Soon Hee JUNG ; Jong Yup BAE
The Journal of the Korean Rheumatism Association 1994;1(2):256-562
Dermatomyositis is a disorder of unknown etiology characterized by an inflammatory myopathy involving striated skeletal muscle and associated characteristic skin lesions. In recent years, there has been increased the awareness of the association of malignant tumor with this disorder. But the relations between dermatomyositis and malignant tumors remains controversial. Comparing to other countries, the incidence rate may be said to be low in Korea. However, we suggest that our concerning makes it's associated malignant tumors discovered. The cutaneous necrosis, elevated erythrocyte sedimentation rate, older age, or acute onset of symptoms proved to have the predictive value of cancer in dermatomyositis. Therefore, we think that more detailed diagnostic workups for malignant neoplasms are recommended in the patient with this criterion. Here we reported a case.of dermatomyositis accompaning by lung cancer with brief review of literatures.
Blood Sedimentation
;
Dermatomyositis*
;
Humans
;
Incidence
;
Korea
;
Lung Neoplasms
;
Muscle, Skeletal
;
Myositis
;
Necrosis
;
Skin
;
Small Cell Lung Carcinoma*
9.Soluble IL-2R, IFN-gamma and Neopterin as Immunologic Markers in Patients with Tuberculosis.
Yon Ju RYU ; Kum Hei RYU ; Su Hyun KIM ; Jong Soo LEE ; Seon Hee CHEON ; Ju Young SEOH
Tuberculosis and Respiratory Diseases 2002;53(3):294-308
BACKGROUND: The cell-mediated immune response plays an important role in tuberculosis. After being activated by mycobacterial antigens, T lymphocytes express a high affinity receptor (IL-2R) for interleukin-2 (IL-2) on their own surface and release a soluble fraction of the IL-2 receptor (sIL-2R) from the cell membrane into the circulation. Neopterin is a metabolite of guanosine-triphosphate, which is produced by stimulated macrophages under the influence of IFN-gamma with a T lymphocyte origin. Therefore, the utility of sIL-2R, IFN-gamma and the neopterin levels as immunologic indices of the cell-mediated immune response and severity of disease in patients with pulmonary tuberculosis was assessed. METHOD: The serum sIL-2R, IFN-gamma and neopterin levels were measured in 39 patients with pulmonary tuberculosis, 6 patients with tuberculous lymphadenitis prior to treatment and 10 healthy subjects. The serum and pleural sIL-2R, neopterin and ADA levels were measured in 22 patients with tuberculous pleurisy. The patients with pulmonary tuberculosis were divided into a mild, moderate and severe group according to the severity by ATS guidelines. To compare the results from these patients with those of the pretreatment levels, the sIL-2R, IFN-gamma and neopterin levels were measured in 36 of the 39 patients(1 patient, expired; 2 patients were referred to a sanitarium) with pulmonary tuberculosis after 2 months of treatment. RESULTS: 1) The serum sIL-2R and IFN-gamma levels were elevated in patients with tuberculosis when compared to those of healthy subjects (0.05). The neopterin concentration in the serum was significantly lower in patients with pulmonary tuberculosis(2967+/-2132.8 pg/ml) than in healthy controls(4949+/-1242.1 pg/ml)(p<0.05). 2) In the pulmonary tuberculosis group, the serum sIL-2R and IFN-gamma levels were higher in patients with severe disease than those in patients with mild and moderate disease. However, the neopterin levels declined as the pulmonary tuberculosis became more severe (p<0.01). 3) The mean serum sIL-2R and IFN-gamma levels declined from 1071+/-1139.4 U/ml to 1023+/-1920.9 U/ml(p>0.05), 41 52.8 pg/ml to 22+/-23.9 pg/ml(p<0.05), respectively, after 2 month of treatment. The mean serum neopterin levels increased from 3158+/-2272.6 pg/ml to 3737+/-2307.5 pg/ml(0.05) after a 2 month of treatment. These findings were remarkable in the severe group of pulmonary tuberculosis with a clinical correlation. 4) In the patients with tuberculous pleurisy, the serum sIL-2R and ADA were significantly higher than those in the pleural fluid, However, the neopterin levels in the sera and pleural effusion were similar. CONCLUSION: On the basis of this study, sIL-2R, IFN-gamma and neopterin measurements may not only provide an insight into the present state of the cell-mediated immune response, but also serve as parameters monitoring of the prognosis of the disease, particularly in patients with severe pulmonary tuberculosis. In addition, an assay of the pleural sIL-2R levels might signal a stimulated local immunity including T cell activation in the tuberculous pleural effusion.
10.Cervical Myelopathy Secondary to Atlas Hypoplasia: Reports of 3 Adult Cases.
Han CHANG ; Woo Jin CHO ; Jong Beom PARK ; Myung Sang MOON ; Jong Woo CHAE ; Jong Seon RYU ; Hyun Suk KANG
Asian Spine Journal 2007;1(1):48-52
There have been paucity of reports on atlas hypoplasia, and as a result this condition is not clearly defined, nor well understood. The authors reported three cases of atlas hypoplasia that were found in adults who presented with myelopathic symptoms. On radiographic examination, it was found that the anterior-posterior diameter of the atlas was remarkably narrower in all three cases in comparison with normal persons. The MRI in all three cases also revealed intramedullary high signal lesions at the levels where severe spinal cord compression was present. This led to our diagnosis of atlas hypoplasia causing myelopathy.
Adult*
;
Diagnosis
;
Humans
;
Magnetic Resonance Imaging
;
Spinal Cord Compression
;
Spinal Cord Diseases*