1.Characteristics of Trigeminal Evoked Potential and It's Pathway in the Rat.
Se Hyuk KIM ; Chun Zhi ZHAO ; Oh Kyoo KWON ; Bae Hwan LEE ; Yong Gou PARK ; Sang Sup CHUNG
Journal of Korean Neurosurgical Society 2000;29(8):985-994
No abstract available.
Animals
;
Evoked Potentials*
;
Rats*
2.Platelet Serotonin Level and Psychological Features of the Suicidal Attempters.
Hee Yeon JEONG ; Young Joon KWON ; In Joon PARK ; Eui Jung CHOI ; Se Yong HONG ; Hyuk Hee JIN
Journal of the Korean Society of Biological Psychiatry 1999;6(1):81-88
OBJECTIVES: Significant progress has been made in understanding psychosocial, psychological, and environmental factors associated with suicide. However it is only recently that attention has been paid to the understanding of the neurobiology of suicide. The aim of this study was to examine the relationship between platelet serotonin level and suicidal behavior and psychological features of the suicidal attempters. METHODS: After a suicidal attempt platelet serotonin level was measured from 21 patients and compared it with those from depression patients and normal controls. Also MMPI, HAM-D, Barratt impulsiveness scale(BIS) were done to evaluate their psychological features. RESULTS: 1) There was no significant difference in sex ratio of the suicidal attempters. 2) There was no significant difference in platelet serotonin levels among three groups. 3) The analysis of MMPI revealed that the scores of D, Hs, Pt in clinical scales were significantly higher in suicide patients and scores of D, Pa, Si were in depression patients. 4)The HAM-D score was significantly higher in depression and suicide patients, especially in depression patients. 5) The analysis of Barratt impulsiveness scale revealed that the scores of nonplanning, motor and cognitive impulsiveness scale were significantly higher in suicide patients. CONCLUSIONS: There was no significant difference in platelet serotonin levels among three groups. However the analysis of psychological features revealed significant differences. Therefore we concluded that psychological examinations are benefit to evaluate the suicidal tendency.
Blood Platelets*
;
Depression
;
Humans
;
MMPI
;
Neurobiology
;
Serotonin*
;
Sex Ratio
;
Suicide
;
Weights and Measures
4.Association of Body Mass Index and Fracture Risk Varied by Affected Bones in Patients with Diabetes: A Nationwide Cohort Study
Se-Won LEE ; Kyungdo HAN ; Hyuk-Sang KWON
Diabetes & Metabolism Journal 2023;47(2):242-254
Background:
Body mass index (BMI) is a risk factor for the type 2 diabetes (T2DM), and T2DM accompanies various complications, such as fractures. We investigated the effects of BMI and T2DM on fracture risk and analyzed whether the association varied with fracture locations.
Methods:
This study is a nationwide population-based cohort study that included all people with T2DM (n=2,746,078) who received the National Screening Program during 2009–2012. According to the anatomical location of the fracture, the incidence rate and hazard ratio (HR) were analyzed by dividing it into four categories: vertebra, hip, limbs, and total fracture.
Results:
The total fracture had higher HR in the underweight group (HR, 1.268; 95% CI, 1.228 to 1.309) and lower HR in the obese group (HR, 0.891; 95% CI, 0.882 to 0.901) and the morbidly obese group (HR, 0.873; 95% CI, 0.857 to 0.89), compared to reference (normal BMI group). Similar trends were observed for HR of vertebra fracture. The risk of hip fracture was most prominent, the risk of hip fracture increased in the underweight group (HR, 1.896; 95% CI, 1.178 to 2.021) and decreased in the obesity (HR, 0.643; 95% CI, 0.624 to 0.663) and morbidly obesity group (HR, 0.627; 95% CI, 0.591 to 0.665). Lastly, fracture risk was least affected by BMI for limbs.
Conclusion
In T2DM patients, underweight tends to increase fracture risk, and overweight tends to lower fracture risk, but association between BMI and fracture risk varied depending on the affected bone lesions.
5.EFFECTS OF EXTRACTS OF DRYNARIAE RHIZOMA ON THE CHARACTERISTICS OF RAT CALARIA AND BONE MARROW CELLS.
Kyung Seok LIM ; Young Hyuk KWON ; Joon Bong PARK ; Sung Jin KIM ; Se Young CHOUNG ; Kun Koo PARK
The Journal of the Korean Academy of Periodontology 1998;28(2):291-308
This study was performed to evaluate the effects of extracts of Drynariae Rhizoma on the characteristics of rat calvaria cells(RCV) and bone marrow cells(RBM) which have the important role on the bone formation in vitro. Drynariae Rhizoma has been known as the useful herbal medicament for treatment of the wound healing including regeneration of bone fracture, and also has been used to treat the periodontal lesions, tooth mobility, gingival bleeding and pus discharge via sulcus in Oriental Medicine. In control group, the cells were cultured alone with Dulbeco's Modified Eagle's Medium contained with 10% fetal bovine serum, 100U/ml penicillin, 100microgram/ml streptomycin, 0.5microgram/ml amphotericin-B. In experimental group, extracts of Drynariae Rhizoma(0.1, 1, 5, 10, 50microgram/ml) were added into the above culture condition. And then each group was characterized by examing the cell proliferation at 1, 3, 7, 14, 21, 30th day, the amount of total protein synthesis and alkaline phosphatase activity of RCV at 2,4th day and those of RBM at 3, 6th day. And also, the calcified nodule of RCV was examed at 3, 5th day in three goup, control, experimental, culture with the PDGF group. The results were as follow; 1. Both RCV and RBM cells in Drynariae Rhizoma-treated experimental group proliferated more rapidly than non-treated control group. The experimental group below 5microgram/ml Drynariae Rhizoma-treated showed more prominent cell proliferation from the 7th day to the 21st day than the control group and above 10 microgram/ml treated group in RCV. 2. Amount of total protein synthesis was more increased in Drynariae Rhizoma-treated group than in control group. In 5microgram/ml Drynariae Rhizoma-treated group showed most prominent protein synthesis of the any other exrperimental group and control group. 3. Alkaline phosphatase activity also more increased in Drynariae Rhizoma-treated group than control group.
Alkaline Phosphatase
;
Animals
;
Bone Marrow Cells*
;
Bone Marrow*
;
Cell Proliferation
;
Fractures, Bone
;
Hemorrhage
;
Medicine, East Asian Traditional
;
Osteogenesis
;
Penicillins
;
Polypodiaceae*
;
Rats*
;
Regeneration
;
Skull
;
Streptomycin
;
Suppuration
;
Tooth Mobility
;
Wound Healing
6.Comparison of Clinical Findings and Coronary Angiographic Findings between Q Wave and Non-Q Wave Myocardial Infarction.
Se Hwan HAN ; San HWANG ; Sung Koo KIM ; Young Joo KWON ; Gyeu Hyuk KIM ; Seong Chan LA ; Dong Ha CHUN ; Jung Gun UH
Korean Circulation Journal 1995;25(3):589-597
BACKGROUND: Patients with non-Q wave myocardial infarction tend to have smaller infarcts and less degree of ventricular function impairment initially, however, uncomplicated non-Q wave infarctions are known to be as serious as Q wave myocardal infarction due to residual myocardal ischemia and higher reinfarction rate. METHODS: Inorder to compare the clinical and coronary angiographic findings of Q wave infarction with those of non-Q wave infarction. 58 partients with acute myocardial infarction were reviewed retrospectively. Patients were classified into Q wave(n=45) and non-Q wave infarction(n=13) according to electrocardiographic findings. RESULTS: 1) There were no significant differences between the two groups in risk factors of coronary artery disease such as hypertension, hypercholesterolemia, smoking and diabets mellitus. 2) The peak myocardial enzyme levels of CPK, CPK-MB were significantly higher in the Q wave MI group, and the percentage of wall motion abnormality on two-dimensional echocardiography was significantly higher in Q wave MI than in the non-Q wave MI group. 3) The number of involved vessel, degree of stenosis and collateral circulation were not different but high degree of stenosis of infarct-related artery was more frequent in Q wave MI group. 4) There were no significant differences between the two groups in the incidence of arrhythmia and in-hospital mortality. CONCLUSION: There were some differences in clinical and angiographic findings, but in-hospital mortality was not significant different between two groups. Futher prospective studies should be performed to clarify the long term prognosis.
Arrhythmias, Cardiac
;
Arteries
;
Collateral Circulation
;
Constriction, Pathologic
;
Coronary Angiography
;
Coronary Artery Disease
;
Echocardiography
;
Electrocardiography
;
Hospital Mortality
;
Humans
;
Hypercholesterolemia
;
Hypertension
;
Incidence
;
Infarction
;
Ischemia
;
Myocardial Infarction*
;
Prognosis
;
Retrospective Studies
;
Risk Factors
;
Smoke
;
Smoking
;
Ventricular Function
7.Splenic Injury after Colonoscopy in Patient on Anti-Platelet Agents : A Case Study.
Se Jun KIM ; Hyun Taek SEO ; Il Eok JO ; Woo Hyuk KWON ; Hong Min PARK ; Yong Kyu LEE
Keimyung Medical Journal 2015;34(2):192-196
Colonoscopy is frequently used for lower GI tract screening tests. Although rare, splenic injury may develop in the high-risk patients on anticoagulants or antiplatelet agents. A 78-year-old female visited our hospital complaining of chest pain. She had taken antihyperlipidemic and antiplatelet agent with hyperlipidemia and 20%-stenosis in the left anterior descending artery. She was taken polypectomy after colonoscopy 4 years ago. The next day, after a follow-up colonoscopy for polypectomy, she complained epigastric and left upper abdominal discomfort. Pain intensity was not high, but next day, epigastric pain was increased, so coronary angiography was performed 2 days later using anticoagulants. Coronary angiography showed 40~50%-stenosis in the left anterior descending artery. Another antiplatelet agent was added. After 72 hours on colonoscopy, her pain was localized upper left abdominal area. Abdominal CT showed intracapsular bleeding in the spleen with a small amount of hemoperitoneum in the pelvis. Since her vital signs were stable, she was treated with conservative management. Her pain improved and discharged. One month later, she was taken Abdominal CT. CT showed the size of intracapsular fluid collection in the spleen was increased, but the whole fluid collection was liquidized. 2 weeks later, follow-up sonography showed the size of fluid collection conspicuously was reduced. The case reported herein is a splenic Injury after Colonoscopy in patient on antiplatelet agents.
Aged
;
Anticoagulants
;
Arteries
;
Chest Pain
;
Colonoscopy*
;
Coronary Angiography
;
Female
;
Follow-Up Studies
;
Hemoperitoneum
;
Hemorrhage
;
Humans
;
Hyperlipidemias
;
Lower Gastrointestinal Tract
;
Mass Screening
;
Pelvis
;
Platelet Aggregation Inhibitors
;
Spleen
;
Tomography, X-Ray Computed
;
Vital Signs
8.A Case of Pleomorphic Rhabdomyosarcoma of Maxillary Sinus Accompanied with Inverted Papilloma.
Sung Jin LEE ; Hee Jun KWON ; Se Hyung HUH ; Sang Hyuk LEE
Korean Journal of Otolaryngology - Head and Neck Surgery 2009;52(1):70-74
Rhabdomyosarcoma is an aggressive malignant tumor rarely developing in the head and neck in adults. In the sinonasal region, rhabdomyosarcoma constitutes a clinically important group because of the difficulty of surgical resection and its generally poor prognosis. Inverted papilloma is a relative rare and benign sinonasal lesionconstituting 0.5% to 4% of all nasal tumors that has a known propensity for recurrence, local aggressiveness, and association with transformation to malignancy. Squamous cell carcinoma is the major malignancy that is associated with inverted papilloma. To our knowledge, this is the first case report of pleomorphic rhabdomyosarcoma accompanied with inverted papilloma, and we represent the case with a review of the related literatures.
Adult
;
Carcinoma, Squamous Cell
;
Head
;
Humans
;
Maxillary Sinus
;
Maxillary Sinus Neoplasms
;
Neck
;
Papilloma, Inverted
;
Prognosis
;
Recurrence
;
Rhabdomyosarcoma
10.Association between Smoking Status and the Risk of Hip Fracture in Patients with Type 2 Diabetes: A Nationwide Population-Based Study
Se-Won LEE ; Jun-Young HEU ; Ju-Yeong KIM ; Jinyoung KIM ; Kyungdo HAN ; Hyuk-Sang KWON
Endocrinology and Metabolism 2023;38(6):679-689
Background:
Limited longitudinal evidence exists regarding the potential association between smoking status and hip fracture among individuals with type 2 diabetes. We investigated this association using large-scale, nationwide cohort data for the Korean population.
Methods:
This nationwide cohort study included 1,414,635 adults aged 40 and older who received Korean National Health Insurance Service health examinations between 2009 and 2012. Subjects with type 2 diabetes were categorized according to their smoking status, amount smoked (pack-years), number of cigarettes smoked per day, and duration of smoking. The results are presented as hazard ratios (HRs) and 95% confidence intervals (CIs) for the associations between smoking status parameters and risk of hip fracture in multivariable Cox proportional hazard regression analysis.
Results:
Compared with never-smokers, an increased adjusted HR (aHR) for hip fracture was observed in current smokers (1.681; 95% CI, 1.578 to 1.791), and a comparable aHR for hip fracture was found in former smokers (1.065; 95% CI, 0.999 to 1.136). For former smokers who had smoked 20 pack-years or more, the risk was slightly higher than that for never-smokers (aHR, 1.107; 95% CI, 1.024 to 1.196). The hip fracture risk of female former smokers was similar to that of female current smokers, but the hip fracture risk in male former smokers was similar to that of male never-smokers.
Conclusion
Smoking is associated with an increased risk of hip fracture in patients with type 2 diabetes. Current smokers with diabetes should be encouraged to quit smoking because the risk of hip fracture is greatly reduced in former smokers.