1.The Operative Treatment of Patellar Fracture Using Indirect Reduction.
Beomkoo LEE ; Soochan LEE ; Younghun JANG ; Kiyoung KANG
Journal of the Korean Knee Society 1998;10(2):236-242
The goal of treatment of fracture of the patella is to gain accurate fracture reduction, secure fracture fixation, and early range of motion. In severely comminuted fractures of patella, open reduction requires extensive soft tissue dissection and high risk of infection. Furthermore, it is very difficult to get rigid fixation enough to allow early joint motion. An alternative in the management of severely comminuted patellar fractures is the technique of indirect reduction, in which the soft-tissue attachments of the individual fragments are preserved and used to reduce the fracture. Thirteen patients with fracture of the patella were treated by indirect method. Clinical analysis was done by using anterior knee pain score by Shelboume, Lysholm score, and radiological finding. The average Lysholm score was 88.3 and average anterior knee pain score 87.3. Nearly anatomic reduction was obtained in all cases. Indirect reduction seemed to be useful for the treatment of comminuted patella fracture due to minimal soft tissue damage, moderate rigid fixation to allow early joint motion.
Fracture Fixation
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Fractures, Comminuted
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Humans
;
Joints
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Knee
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Patella
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Range of Motion, Articular
2.Immunomodulatory Effects of ZYM-201 on LPS-stimulated B Cells.
Ye Eun LEE ; Soochan KIM ; Woong Jae JUNG ; Hyung Soo LEE ; Mi Yeon KIM
Immune Network 2014;14(5):260-264
ZYM-201 is a methyl ester of triterpenoid glycoside from Sanguisorba officinalis which has been used for treatment of inflammatory and metabolic diseases. In this study, immunomodulatory effects of ZYM-201 on B cells were examined in vitro and in vivo. When splenocytes were activated with lipopolysaccharide (LPS), the major population which had shown an increase in cell numbers was B cells. However, when the B cells were treated with ZYM-201 after LPS activation, their cell numbers and the expression of major costimulatory molecules, CD80 and CD86, were decreased. Furthermore, the effect of LPS, which induces activation of NF-kappaB, was abolished by ZYM-201: LPS-stimulated B cells showed decrease of phosphorylation after treatment of ZYM-201. The same results were shown in vivo experiments. These results suggest that ZYM-201 may play a role in the modulation of inflammatory responses through inhibiting NF-kappaB activation and downregulating the expression of costimulatory molecules on B cells.
B-Lymphocytes*
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Cell Count
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Inflammation
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Metabolic Diseases
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NF-kappa B
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Phosphorylation
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Sanguisorba
3.Computed tomographic anatomy of hepatic artery in normal beagle dogs
Soochan KIM ; Seongmok JEONG ; Heechun LEE ; Youngwon LEE ; Hojung CHOI
Korean Journal of Veterinary Research 2019;59(2):55-58
This study was performed to examine the visualization and anatomical variants of the hepatic artery with dual-phase computed tomography (CT) angiography and three-dimensional volume rendering imaging analysis in clinically normal dogs. Seven healthy beagle dogs were enrolled and underwent dual CT angiography. Arterial phase images could be obtained with multi-detector CT angiography using the fixed-scan method in these dogs. Contrast enhancement of the hepatic parenchyma was quite minimal because of the unique blood supply system of the liver. In most dogs, the main hepatic arterial branches were the right lateral branch, left branch, and right medial branch. Although hepatic arterial variation appears to be common in dogs, only one dog in this study had the caudate lobar branch as the first branch of the hepatic artery. Further study on a larger number of dogs with CT images will be needed to identify and classify the pattern of hepatic arterial variations.
4.Computed tomographic anatomy of hepatic artery in normal beagle dogs
Soochan KIM ; Seongmok JEONG ; Heechun LEE ; Youngwon LEE ; Hojung CHOI
Korean Journal of Veterinary Research 2019;59(2):55-58
This study was performed to examine the visualization and anatomical variants of the hepatic artery with dual-phase computed tomography (CT) angiography and three-dimensional volume rendering imaging analysis in clinically normal dogs. Seven healthy beagle dogs were enrolled and underwent dual CT angiography. Arterial phase images could be obtained with multi-detector CT angiography using the fixed-scan method in these dogs. Contrast enhancement of the hepatic parenchyma was quite minimal because of the unique blood supply system of the liver. In most dogs, the main hepatic arterial branches were the right lateral branch, left branch, and right medial branch. Although hepatic arterial variation appears to be common in dogs, only one dog in this study had the caudate lobar branch as the first branch of the hepatic artery. Further study on a larger number of dogs with CT images will be needed to identify and classify the pattern of hepatic arterial variations.
Angiography
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Animals
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Dogs
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Hepatic Artery
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Liver
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Methods
5.Diagnostic imaging of congenital pulmonary aplasia in a dog.
Soochan KIM ; Hojung CHOI ; Youngwon LEE
Korean Journal of Veterinary Research 2017;57(4):253-255
A 2-year-old, female Pomeranian dog was referred for dyspnea. Thoracic radiographs revealed left-sided mediastinal shift, increased soft tissue opacity in the caudal aspect of left thorax with loss of the left diaphragmatic silhouette, and dorsal elevation of mediastinal structures and heart from the sternum by lung tissue. The left main bronchus was visualized as an air-bronchogram and observed to abruptly discontinue at the level of the 10th rib. Thoracic computed tomography (CT) revealed absence of the left lung parenchyma and left pulmonary vessels with a rudimentary left main bronchus. The case was congenital pulmonary aplasia diagnosed via radiography and CT.
Animals
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Bronchi
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Child, Preschool
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Diagnostic Imaging*
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Dogs*
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Dyspnea
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Female
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Heart
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Humans
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Lung
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Radiography
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Ribs
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Sternum
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Thorax
6.Increased Lymphocyte Infiltration in Rheumatoid Arthritis Is Correlated with an Increase in LTi-like Cells in Synovial Fluid.
Jihye KOO ; Soochan KIM ; Woong Jae JUNG ; Ye Eun LEE ; Gwan Gyu SONG ; Kyung Su KIM ; Mi Yeon KIM
Immune Network 2013;13(6):240-248
In this study, we compared the immune cell populations in rheumatoid arthritis (RA) synovial fluid, which shows lymphoid tissue-like structure, with those in tonsils, which are normal secondary lymphoid tissues. Firstly, we found that CD4-CD11b+ macrophages were the major population in RA synovial fluid and that B cells were the major population in tonsils. In addition, synovial fluid from patients with osteoarthritis, which is a degenerative joint disease, contained CD4+CD11b+ monocytes as the major immune cell population. Secondly, we categorized three groups based on the proportion of macrophages found in RA synovial fluid: (1) the macrophage-high group, which contained more than 80% macrophages; (2) the macrophage-intermediate group, which contained between 40% and 80% macrophages; and (3) the macrophage-low group, which contained less than 40% macrophages. In the macrophage-low group, more lymphoid tissue inducer (LTi)-like cells were detected, and the expression of OX40L and TRANCE in these cells was higher than that in the other groups. In addition, in this group, the suppressive function of regulatory T cells was downregulated. Finally, CXCL13 expression was higher in RA synovial fluid than in tonsils, but CCL21 expression was comparable in synovial fluid from all groups and in tonsils. These data demonstrate that increased lymphocyte infiltration in RA synovial fluid is correlated with an increase in LTi-like cells and the elevation of the chemokine expression.
Arthritis, Rheumatoid*
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B-Lymphocytes
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Humans
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Joint Diseases
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Lymphocytes*
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Lymphoid Tissue
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Macrophages
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Monocytes
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Osteoarthritis
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Palatine Tonsil
;
Synovial Fluid*
;
T-Lymphocytes, Regulatory
7.Development and Evaluation of a Web-based Computer-Assisted Personal Interview System (CAPIS) for Open-ended Dietary Assessments among Koreans.
Sangah SHIN ; Eunyoung PARK ; Dong Han SUN ; Tae Kyoung YOU ; Myung Joo LEE ; Soochan HWANG ; Hee Young PAIK ; Hyojee JOUNG
Clinical Nutrition Research 2014;3(2):115-125
The accuracy of dietary assessments has emerged as a major concern in nutritional epidemiology and new dietary assessment tools using computer technology to increase accuracy have been developed in many countries. The purpose of this study was to develop a web-based computer-assisted personal interview system (CAPIS) for conducting dietary assessment and to evaluate its practical utilization among Koreans. The client software was developed using Microsoft's ClickOnce technology, which allows communication with a database system via an http server to add or retrieve data. The system consists of a tracking system for the subject and researcher, a data-input system during the interview, a calculation system for estimating food and nutrient intake, a data-output system for presenting the results, and an evaluation system for assessing the adequacy of nutrient and food intake. Databases of the nutrient composition of common food (n = 3,642), recipes for common dishes (n = 1,886), and photos of serving sizes for food and dishes (n = 4,152) were constructed, and logical processes for data collection, calculation, and output were developed. The functionality, on-site applicability, and efficiency of CAPIS were evaluated in a convenience sample of 181 participants (61 males, 120 females; aged 24 to 85) by comparing with manual 24 hour recall method with paper questionnaire. The CAPIS was functioned adequately in the field survey in terms of completeness of function, security, and compliance of researcher and subjects. Regarding on-site applicability, 23.2%, 32.6%, 35.4%, and 43.7% of subjects reported that CAPIS was easier to recall their diet, to estimate the amount consumed, to communicate with the interviewer, and to concentrate on the interview than the manual method with paper questionnaire, respectively. Although CAPIS required more interview time (9 min 42 sec) compared to the manual method (7 min 30 sec), it saved time and cost for data coding and entry (15 min 35 sec) and gave high satisfaction from the prompt feedback after interview to the subjects, which increase efficiency to apply on the field survey. Our results suggest that the newly developed CAPIS is suitable for conducting personal interviews for dietary assessment in Korean population.
Clinical Coding
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Compliance
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Data Collection
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Diet
;
Eating
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Epidemiology
;
Female
;
Humans
;
Logic
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Male
;
Nutrition Assessment
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Serving Size
;
Surveys and Questionnaires