1.Computational & experimental study of the new type femoral stem for improvement of load transfer at the calcar in cemented hip joint prosthesis.
Myung Chul YOO ; Yong Girl RHEE ; Seung Key KIM ; Chul Woo CHUN
The Journal of the Korean Orthopaedic Association 1993;28(1):43-50
No abstract available.
Hip Joint*
;
Hip*
;
Prostheses and Implants*
2.Purification of the urease of helicobacter pylori and production of monoclonal antibody to the urease of helicobacter pylori.
Jae Im KIM ; Seung Chul BAIK ; Myung Je CHO ; Woo Kon LEE ; Kwang Ho RHEE
Journal of the Korean Society for Microbiology 1991;26(6):531-540
No abstract available.
Helicobacter pylori*
;
Helicobacter*
;
Urease*
3.Production of the monoclonal antibody and the genomic library of helicobacter pylori.
Kwang Ho RHEE ; Woo Kon LEE ; Seung Chul BAIK ; Myung Je CHO ; Hyu Jin CHOI
Journal of the Korean Society for Microbiology 1991;26(4):305-316
No abstract available.
Genomic Library*
;
Helicobacter pylori*
;
Helicobacter*
4.A radiologic evaluation of fit of noncemented prosthetic femoral stems.
Myung Chul YOO ; Yong Girl RHEE ; Young Woo KIM ; Jong Jin KIM ; Yong Jae KIM
The Journal of the Korean Orthopaedic Association 1993;28(1):1-10
No abstract available.
5.A clinical analysis of ectopic pregnancy.
Jeong Ho RHEE ; Eung Chul CHOI ; Ji Young LEE ; Yeon Jung YOON ; Shin Ae LEE ; Jong Woo KIM
Korean Journal of Obstetrics and Gynecology 1991;34(7):972-983
No abstract available.
Female
;
Pregnancy
;
Pregnancy, Ectopic*
6.Association of Shift Work with Normal-Weight Obesity in Community-Dwelling Adults
Chul Woo AHN ; Sungjae SHIN ; Seunghyun LEE ; Hye-Sun PARK ; Namki HONG ; Yumie RHEE
Endocrinology and Metabolism 2022;37(5):781-790
Background:
Shift work is associated with obesity and metabolic syndrome. However, this association in the normal-weight population remains unclear. This study aimed to investigate whether shift work is associated with normal-weight obesity (NWO).
Methods:
From the nationally representative Korea National Health and Nutrition Examination Survey (KNHANES) dataset (2008 to 2011), 3,800 full-time workers aged ≥19 years with a body mass index (BMI) ≤25 kg/m2 were analysed. We defined NWO as BMI ≤25 kg/m2 and body fat percentage ≥25% in men and ≥37% in women. Working patterns were classified into “daytime,” “other than daytime,” and “shift.” Multivariable logistic regression analysis was performed to evaluate the relationship between shift work and NWO.
Results:
Shift work was associated with higher odds of NWO than daytime work (adjusted odds ratio [aOR], 1.47; 95% confidence interval [CI], 1.04 to 2.09) and night/evening work (aOR, 1.87; 95% CI, 1.11 to 3.14) after adjustment for type of work, working hours, age, sex, BMI, 25-hydroxyvitamin D levels, homeostatic model assessment for insulin resistance, and other sociodemographic factors. In subgroup analyses, the association between shift work and NWO was more robust in those aged ≥60 years and those working ≥56 hours/week.
Conclusion
Shift work was associated with NWO in community-dwelling Korean adults, independent of age, sex, BMI, and other covariates.
7.The Speed of Eating and Functional Dyspepsia in Young Women.
Dong Hyun SINN ; Dong Hyuk SHIN ; Seong Woo LIM ; Kyung Mook KIM ; Hee Jung SON ; Jae J KIM ; Jong Chul RHEE ; Poong Lyul RHEE
Gut and Liver 2010;4(2):173-178
BACKGROUND/AIMS: Little information is available on whether the speed of eating differs between individuals with and without dyspepsia, mainly because controlled studies are usually not feasible. METHODS: A survey was applied to 89 individuals with relatively controlled eating patterns, using questionnaires that assessed eating time and functional dyspepsia (FD) based on the Rome III criteria. RESULTS: The prevalence of FD was 12% (11 of 89 participants), and 7% (6 of 89) were diagnosed with gastroesophageal reflux disease (GERD). The proportion of individuals reporting that they ate their meals rapidly was higher for those with FD than for those without FD or GERD (control) (46% vs 17%, p=0.043), as was the reported eating speed (7.1+/-1.5 vs 5.8+/-2.0 [mean+/-SD], p=0.045; visual analog scale on which a higher score indicated faster eating). However, the measured eating time did not differ significantly between FD and controls (11.0+/-2.8 vs 12.8+/-3.3 minutes, p=0.098). The proportion of individuals who ate their meals within 13 minutes was significantly higher for those with FD than for controls (91% vs 51%, p=0.020). CONCLUSIONS: The results of this study suggest that eating speed affects dyspepsia. Further studies are warranted.
Dyspepsia
;
Eating
;
Female
;
Food Habits
;
Gastroesophageal Reflux
;
Humans
;
Meals
;
Prevalence
;
Rome
;
Surveys and Questionnaires
8.Tissue Reactions of the 532 nm Flash Lamp Pumped Solid State Laser and Diode Pumped Solid State Laser on the Muscle and Skin of the Guinea Pig.
Sang Yong CHUNG ; Chung Ku RHEE ; Phil Sang CHUNG ; Bum Ku RHEE ; Seung Hoon WOO ; Se Hyung KIM ; Jin Chul AHN
Korean Journal of Otolaryngology - Head and Neck Surgery 2004;47(9):872-877
BACKGROUND AND OBJECTIVES: The efficiency of second harmonic generation at 532 nm is high when a pulsed Nd : YAG laseris used as a pump source of fundamental waves. The pulse durations of 532 nm-irradiation can be varied from 10 ns to 1000 ns by changing the pumping method. The purpose of this study was to compare the macroscopic and micropscopic changes in the muscle and skin after irradiation by 532 nm Flash lamp pumped solid state (FPSS) laser and Diode pumped solid state (DPSS) laser, whose pulse durations are 600 ns and 100 ns, respectively. MATERIALS AND METHOD: Two experiments were conducted on the muscle and skin of guinea pig. First, the guinea pig muscle and skin were irradiated by the 532 nm FPSS and DPSS lasers with various intensities and time duration. Macroscopic examinations were performed on the muscle lesions and immediate histopathologic examinations on the skin were carried out. RESULTS: The volume of vaporization and necrosis of the guinea pig muscle by the FPSS laser was larger than that by the DPSS laser. The vaporization and necrosis reaction of skin by the FPSS was significantly stronger than that by the DPSS laser. CONCLUSION: It appears that the DPSS laser system would be superior over the FPSS laser system in providing more accurate and precise surgery with less intense injury on the surrounding tissue.
Animals
;
Guinea Pigs*
;
Guinea*
;
Necrosis
;
Skin*
;
Volatilization
9.Recurrent Intramedullary Neurenteric Cyst of the Spine.
Jong Joo RHEE ; Young Shin RA ; Shin Kwang KHANG ; Sung Woo ROH ; Seung Chul RHIM
Journal of Korean Neurosurgical Society 2001;30(12):1422-1426
Neurenteric cysts are developmental cysts derived from embryonic endodermal layers. Fewer than 100 have been reported in which there were no associated bone or soft-tissue malformations and only six among those cases showed intramedullary location in the literatures. The authors report a 16-year-old young man with a thoracic intramedullary neurenteric cyst which presented with symptoms of axillary pain and paraparesis. The magnetic resonance imaging showed intramedullary mass extended from level of T3 to T7. There was no associated bone or soft-tissue anomaly. This cyst was partially excised and marupialized into subarachnoid space. The pathological findings were compatible with neurenteric cyst. Nine months later, the cyst recurred and at second operation, cyst wall was removed completely.
Adolescent
;
Endoderm
;
Humans
;
Magnetic Resonance Imaging
;
Neural Tube Defects*
;
Paraparesis
;
Recurrence
;
Spine*
;
Subarachnoid Space
10.Framingham Risk Scores by Occupational Group: Based on the 3rd Korean National Health and Nutrition Examination Survey.
Min Chul CHOI ; Yoon Hee SONG ; Sang Youl RHEE ; Jeong Taek WOO
Korean Journal of Occupational and Environmental Medicine 2009;21(1):63-75
OBJECTIVES: To find differences in Framingham risk scores which predict the probable risk of future cardiovascular disease, among three different occupational categories. METHODS: Subjects were selected from respondents of the 3rd Korean National Health and Nutrition Examination Survey. A total of 2,059 employed people between 20 to 59 years old were selected. The occupational categories were professional and office workers, salespeople and service workers and technicians and elementary occupations. The Framingham risk score was calculated to find the risk of cardiovascular disease within the next 10 years. In addition socio-demographic characteristics, life-styles, the prevalence of chronic disease, and cardiovascular disease were compared among the occupational categories. RESULTS: The average Framingham risk score was 2.77+/-6.44 for professional and office workers (n=771), 5.95+/-6.10 for salespeople and service workers (n=603) and 7.07+/-5.87 for technician and elementary occupations (n=685) Statistically significant multiple regression equations were derived (p<0.001). CONCLUSIONS: Framingham risk scores of technicians and elementary occupations were highest which suggests that this occupational group has the highest risk of cardiovascular disease.
Cardiovascular Diseases
;
Chronic Disease
;
Data Collection
;
Humans
;
Nutrition Surveys
;
Occupational Groups
;
Occupations
;
Prevalence