1.Changes of c-Fos Protein Expression in Rat Brain Neurons after Formalin Induced Pain.
Kyu Geun HWANG ; Myeong Dong SHIN ; Ki Soo YOO
Journal of the Korean Child Neurology Society 1999;7(1):29-41
PURPOSE: The effects of pain on brain is not well known. Also, differences between somatic and visceral pains have not been fully elucidated. This study was conducted to investigate changes in the expression of c-Fos protein after somatic and visceral pains were induced by formalin. METHODS: Male rats(n=65) were underwent one of three procedures : (i) Control group, rats were left undisturbed in their cages; (ii) Somatic pain group, rats were injected subcutaneously with 0.1 ml of 10% formalin in the plantar surface of right hindpaw; (iii) Visceral pain group, rats were administered with same amount of formalin, as described above, in the rectum. Rats were sacrificed at increasing times(30 minutes, 1 hour, 2 hours, 6 hours, 1 day, 3 days and 7 days) after noxious formalin stimuli to hindpaws and rectums. Rat brains were removed and sliced in rat brain matrix. Brain slices were coronal sectioned at interaural 5.70-6.70mm. Serial sections were immunohistochemically reacted with polyclonal c-Fos antibody. The numbers of c-Fos protein immunoreactive neurons in cingulate cortex, primary somatosensory area, and hippocampus were examined and analyzed statistically with Mann-Whitney U test. RESULTS: 1) The numbers of c-For protein immunoreactive neurons in cingulate cortex, primary somatosensory area and hippocampus peaked at 2 hours after somatic pain stimuli and reached almost normal conditions at 7 days. 2) The numbers of c-Fos protein immunoreactive neurons in cingulate cortex, primary somatosensory area and hippocampus peaked at 1 day after visceral pain stimuli and reached almost normal conditions at 7 days. 3) The numbers of c-Fos protein immunoreactive neurons of somatic pain groups were higher than that of visceral groups at all times and the difference of numbers peaked at 2 hours after pain stimuli. CONCLUSION: Reactions of somatic pain stimuli influenced more changable than visceral pain stimuli to brain. Conduction velocities of somatic pain were more faster than those of visceral pain. Higher numbers of c-Fos protein immunoreactive neurons were found in specific regions. These results provide some basic knowledge in understanding the mechanism and control of pain.
Animals
;
Brain*
;
Formaldehyde*
;
Gyrus Cinguli
;
Hippocampus
;
Humans
;
Male
;
Neurons*
;
Nociceptive Pain
;
Rats*
;
Rectum
;
Visceral Pain
2.The Plasma Level of N-terminal Pro B-type Natriuretic Peptide(NT-proBNP) for Severity of Coronary Artery Stenosis and Early Risk Stratification in Patients with Non ST Elevation Acute Coronary Syndrome.
Ki Seok KIM ; Hae Sook HAN ; Kyung Kuk HWANG ; Tae Jin YOUN ; Dong Woon KIM ; Myeong Chan CHO
Korean Circulation Journal 2004;34(2):133-141
BACKGROUND AND OBJECTIVES: Although elevations of plasma N-terminal pro B-type natriuretic peptide (NT-proBNP) concentration have been shown to be prognostically significant in patients with non-ST elevation acute coronary syndrome (ACS), the relation between the plasma level of NT-proBNP and the severity of coronary disease remains unknown. SUBJECTS AND METHODS: The NT-proBNP concentration was analyzed in 50 patients with non-ST elevation ACS. We compared plasma NT-proBNP levels and treatment method (medical treatment vs. percutaneous coronary intervention [PCI]). RESULTS: In patients with non-ST elevation ACS, NT-proBNP levels were significantly higher in the PCI (n=37) group than in the medical treatment (n=13) group (296.6 vs. 76.3 pg/mL;p<.001). In patients with unstable angina (UA), NT-proBNP levels were significantly higher in the PCI (n=22) group than in the medical treatment (n=12) group (147.6 vs. 64.5 pg/mL;p<.001). Elevated NT-proBNP level predicted PCI in patient with non-ST elevation ACS. A NT-proBNP level >125.9 pg/mL had sensitivity, specificity, positive predictive value and negative predictive value of 75.7%, 92.3%, 96.6% and 57.1%, respectively. In patients with UA, a NT-proBNP level >123.8 pg/mL had equivalent results of 68.2%, 91.7%, 93.8% and 61.1%, respectively. The area under the curve was 0.891 in non-ST elevation ACS and 0.907 in UA. Elevated NT-proBNP level was also correlated with the severity of culprit artery stenosis and multi-vessel disease. CONCLUSION: Elevated plasma NT-proBNP concentrations were associated with the severity of coronary artery disease in patients with non-ST elevation ACS. In combination with clinical factors, NT-proBNP level will provide a highly discerning tool for early risk stratification and further clinical decisions.
Acute Coronary Syndrome*
;
Angina, Unstable
;
Angioplasty
;
Arteries
;
Constriction, Pathologic
;
Coronary Artery Disease
;
Coronary Disease
;
Coronary Stenosis*
;
Coronary Vessels*
;
Humans
;
Natriuretic Peptide, Brain
;
Percutaneous Coronary Intervention
;
Plasma*
;
Sensitivity and Specificity
3.Short-Term Success Rates of Smoking Cessation Support Programs and Factors Predicting Smoking Relapse: Using Data from a Smoking Cessation Clinic in a Hospital
Seung Hyun YU ; Myeong Jun KIM ; Jin JEON ; Hoon Ki PARK ; Hwan Sik HWANG ; Kye Yeung PARK
Korean Journal of Family Medicine 2019;40(6):373-379
BACKGROUND: Although the number of medical institutions running a smoking cessation clinic is on the rise, there remains a paucity of research on the long- and short-term success rates of smoking cessation programs, as well as on smoking relapse rates, before and after project implementation. This study assessed the general characteristics of patients visiting the smoking cessation clinic, success rate of smoking cessation in the short term, and risks of relapse. METHODS: Medical records from March 2015 to April 2017 were analyzed and telephone surveys were conducted with 151 smokers who visited a hospital smoking cessation clinic from March 2015 to April 2017. RESULTS: Of the 139 smokers who were eligible for follow-up, 22 (15.8%) failed to quit smoking initially. The clinic's 6-month success rate of smoking cessation was 64.83%. Those with higher medication compliance had a lower risk of primary failure (odds ratio, 0.056; 95% confidence interval, 0.005–0.609), whereas those with higher age (hazard ratio [HR], 0.128; P=0.0252) and a greater number of visits to the clinic (HR, 0.274; P=0.0124) had a lower risk of relapsing. CONCLUSION: The risk of primary failure to quit was higher with low medication compliance, and that of relapsing was higher with lower age and fewer number of clinic visits. Various evaluation and analysis methods can be carried out in the future based on the accumulated data for maintenance of smoking cessation and relapse prevention.
Ambulatory Care
;
Follow-Up Studies
;
Humans
;
Medical Records
;
Medication Adherence
;
Recurrence
;
Running
;
Secondary Prevention
;
Smoke
;
Smoking Cessation
;
Smoking
;
Telephone
;
Varenicline
4.Clebopride-Induced Parkinsonism.
Chae Young LEE ; Bohm CHOI ; Bosong HWANG ; Myeong Jin SON ; Minwoo LEE ; Jinhyuk YOO ; Ki Hoon SUNG ; Soo Jin CHO ; Jooyong KIM ; Ki Han KWON ; Suk Yun KANG
Journal of the Korean Neurological Association 2016;34(3):261-263
No abstract available.
Parkinsonian Disorders*
5.The Evaluation of the Quality of Life in Epileptic Patients : The Study of QOLIE(Quality of Life in Epilepsy)-89.
Joon Tae KIM ; Dae Su SHIN ; Jong Ki KIM ; In Yong HWANG ; Sung Min CHOI ; Byeong Chae KIM ; Myeong Kyu KIM ; Ki Hyun CHO
Journal of Korean Epilepsy Society 2001;5(2):177-185
PURPOSE: Patients with epilepsy experience the impairment of Quality of life (QOL). The objective of this study was to investigate the 'Quality of Life' in epileptic patients and the influences of clinical factors upon QOL in epileptic patients. METHODS: Total 138 epileptic patients (male : 77, female : 61) were recruited for the study. The Quality of Life in Epilepsy (QOLIE)-89 was applied to evaluate QOL in epileptic patients. We gathered data about clinical variables (seizure type, frequency, duration of disease, number of antiepileptic drug, and depression) and socio-demographic variables (age, sex, marriage, employment, and education), and compared each variables in use of QOLIE-89 score. RESULTS: Depression influenced negatively the most of all subscales (16 of 20 subscales) and overall score (p<0.01), and was the most significant inverse predictor of QOL in patients with epilepsy. Patients who were seizure-free in the past year reported better QOL than those with seizure-doing (p<0.05). Patients with polypharmacy showed lower scores at overall QOL, health discouragement, language, and overall score than those with monopharmacy (p<0.05). Male showed lower score than female at the scale of sexual relation (p<0.05), but higher scores at scales of health perception, overall health, and physical health (p<0.05). Highly-educated group (> or =16 year) had higher score at overall score and emotional well-being (p<0.05). However, age, marital state, employment, seizure type, and duration of disease did not affect QOL significantly. CONCLUSIONS: Sex, education, number of AEDs, depression, and seizure free state were major socio-clinical factors affecting QOL in patients with epilepsy. It is suggested that physician should recognize these factors and manage appropriately for improving the QOL.
Depression
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Education
;
Employment
;
Epilepsy
;
Female
;
Humans
;
Male
;
Marriage
;
Polypharmacy
;
Quality of Life*
;
Seizures
;
Weights and Measures
6.Effects of Pressure Overload and its Recovery on Vascular Reactivity and Remodeling of the Rat Carotid Artery.
Jin Sook KWON ; Sang Jin LEE ; Young Gyu KIM ; Young Chul KIM ; Ki Seok KIM ; Kyung Kuk HWANG ; Tae Jin YOUN ; Myeong Chan CHO ; Dong Woon KIM
Korean Circulation Journal 2003;33(10):936-948
BACKGROUND AND OBJECTIVES: The Vascular system exhibits altered morphological and functional properties during hypertension and after anti-hypertensive therapy. To characterize such changes, the contractile, histological and molecular responses in the common carotid arteries (CCA) were compared in 35 rats. MATERIALS AND METHODS: By partial transverse aortic constriction (TAC), the right CCAs were made to lie under a high pressure environment, while the left CCAs remained under normotension, the latter being used as control vessels. The ligations were removed after two weeks, to enable the recovery process to begin. RESULTS: The vessel contractility, two weeks after the TAC, was nearly abolished. The recovery process from high pressure showed an initial hypercontractile period of around 1-2 week after recovery, prior to the subsequent decline to a normal contractility after 2 weeks. The relaxation response due to acetylcholine was minimal at the end of the hypertensive period, recovered slowly, and reached a normal magnitude after 4 weeks. A high pressure increases the medial thickness & area, and enhances the adventitial tissue formation. These changes persist during the first 4 weeks of recovery, after which normotension returns. Apoptosis at the endothelial layer was significantly increased two weeks after the TAC, but normalized two weeks after recovery. The expression of ecNOS was not detect 2 weeks after the TAC, but gradually returned to a basal level at 2 weeks after the untying. CONCLUSION: A high blood pressure causes decreases in the contractility and endothelium-dependent relaxation. It also increases endothelial apoptosis, the medial thickness & area, and enhances the adventitial tissue formation. The recovery processes from high blood pressure are not uniform, but show different normalizations among the structural, contractile and apoptotic parameters.
Acetylcholine
;
Adventitia
;
Animals
;
Apoptosis
;
Arteries
;
Carotid Arteries*
;
Carotid Artery, Common
;
Constriction
;
Hypertension
;
Ligation
;
Nitric Oxide
;
Rats*
;
Relaxation
7.Plasma Thioredoxin Level and Its Correlation to Myocardial Damage in Patients with Acute Myocardial Infarction who Underwent Successful Primary Angioplasty.
Ki Seok KIM ; Hyeo Sook HAN ; Yeong Shin LEE ; Jang Whan BAE ; Kyeong Kuk HWANG ; Dong Woon KIM ; Seung Jae JOO ; Myeong Chan CHO
Korean Circulation Journal 2006;36(1):39-45
BACKGROUND AND OBJECTIVES: Oxidative stress is thought to play important role in cardiovascular disease. Thioredoxin is an important biomarker for determining the degree of oxidative stress. However, the relationship between the plasma thioredoxin levels and myocardial damage has not been investigated. SUBJECTS AND METHODS: We measured the plasma thioredoxin levels in the patients suffering with acute myocardial infarction and who also underwent successful primary angioplasty. We then compared the plasma thioredoxin levels and the clinical parameters in acute myocardial infarction patients (n=37) in order to examine the relationship between oxidative stress and myocardial damage. RESULTS: The plasma thioredoxin level was significantly related with the initial WBC count (r=0.349, p<0.05) and the myocardial damage, the peak CK level (r=0.489, p<0.01), the CK increment (r=0.452, p<0.05), the peak MB level (r=0.417, p<0.05), and the MB increment (r=0.364, p<0.05). We divided the patients into two groups according to the plasma thioredoxin levels. There was a significant difference in myocardial damage between the low and high plasma thoiredoxin levels at the initial WBC count (10174.2+/-3380.4/uL vs 13500+/-3740.7/uL, respectively; p<0.01) and the cardiac enzyme, the peak CK level (2565.2+/-1389.9 IU/L vs 4045.9+/-1978.9 IU/L, respectively; p=0.02), the CK increment (2309.6+/-1351.8 IU/L vs 3762.8+/-2079.7 IU/L, respectively; p=0.03), the peak MB level (208.7+/-127.5 IU/L vs 322.7+/-146.3 IU/L, respectively; p=0.02), and the MB increment (173.8+/-128.4 IU/L vs 277.7+/-158.9 IU/L, respectively; p=0.05). CONCLUSION: High thioredoxin levels were associated with the degree of oxidative stress and the extent of myocardial damage. Thioredoxin levels may be used as a new surrogate biomarker for the severity of oxidative stress and the extent of myocardial damage in the patients suffering with acute myocardial infarction.
Angioplasty*
;
Cardiovascular Diseases
;
Humans
;
Myocardial Infarction*
;
Oxidative Stress
;
Plasma*
;
Thioredoxins*
8.Perivascular Delivery of Paclitaxel with F-127 Pluronic Gel Inhibits Neointimal Hyperplasia in a Rat Carotid Artery Injury Model.
Jin Sook KWON ; Sung Soon PARK ; Young Gyu KIM ; Ju Hee SON ; Yeong Shin LEE ; Ki Seok KIM ; Kyung Kuk HWANG ; Dong Woon KIM ; Myeong Chan CHO
Korean Circulation Journal 2005;35(3):221-227
BACKGROUND AND OBJECTIVES: The local delivery of drugs to the arterial wall represents a strategy for the treatment of fibroproliferative vascular disease. Paclitaxel has been shown to inhibit vascular smooth muscle cell proliferation and migration, which contribute to neointimal formation. This study tested whether the perivascular delivery of paclitaxel can prevent neointimal formation in a rat carotid artery injury model. MATERIALS AND METHODS: The ability of locally-administered paclitaxel to prevent the neointimal hyperplastic response was tested by incorporating 10 microgram paclitaxel into 40% F-127 pluronic gel, which was then applied to the adventitial surface of the rat carotid artery immediately following balloon injury. Fourteen days after angioplasty, the neointimal growth was compared between paclitaxel- (n=12) and pluronic gel only treated (control group, n=11) rats. RESULTS: The paclitaxel-treated group showed significant neointimal formation reductions compared to the control group (0.10+/-0.05 versus 0.21+/-0.05 mm2, p<0.05). The perivascular application of paclitaxel produced a highly localized pattern of neointimal growth inhibition in the arterial cross-section. Although 10 microgram paclitaxel showed no significant cytotoxicity, 20 microgram paclitaxel (n=3) demonstrated cytotoxicity, with medial cell drop out in the region of application. CONCLUSION: We have demonstrated that the local extravascular application of 40% F-127 pluronic gel containing paclitaxel provides an effective mechanism for inhibiting the proliferative response to vascular injury in the rat. The cellular response to paclitaxel is highly focal. Locally sustained delivery of paclitaxel, as little as 10 microgram, was effective in preventing neointimal growth, without destroying medial wall smooth muscle cells.
Angioplasty
;
Animals
;
Carotid Arteries*
;
Carotid Artery Injuries*
;
Cell Proliferation
;
Hyperplasia*
;
Muscle, Smooth, Vascular
;
Myocytes, Smooth Muscle
;
Paclitaxel*
;
Rats*
;
Vascular Diseases
;
Vascular System Injuries
9.Discovery of Parasite Eggs in Archeological Residence during the 15th Century in Seoul, Korea.
Pyo Yeon CHO ; Jung Min PARK ; Myeong Ki HWANG ; Seo Hye PARK ; Yun Kyu PARK ; Bo Young JEON ; Tong Soo KIM ; Hyeong Woo LEE
The Korean Journal of Parasitology 2017;55(3):357-361
During civil engineering construction near Sejong-ro, Jongro-ku, Seoul, cultural sites were found that are thought to have been built in the 15th century. This area was home to many different people as well as the leaders of the Yi dynasty. To gain further insight into the life styles of the inhabitants of the old capital, soil samples were collected from various areas such as toilets, water foundations, and drainage ways. Parasite eggs were examined by microscopy after 5 g soil samples were rehydrated in 0.5% trisodium phosphate solution. A total of 662 parasite eggs from 7 species were found. Species with the highest number of eggs found were Ascaris lumbricoides (n=483), followed by Trichuris trichiura (138), Trichuris vulpis (21), Fasciola hepatica (8), Clonorchis sinensis (6), Paragonimus westermani (4), and Metagonimus yokogawai (2). These findings indirectly indicate the food habits of the people in Yi dynasty.
Ascaris lumbricoides
;
Clonorchis sinensis
;
Drainage
;
Eggs*
;
Fasciola hepatica
;
Food Habits
;
Foundations
;
Heterophyidae
;
Korea*
;
Life Style
;
Microscopy
;
Ovum*
;
Paragonimus westermani
;
Parasites*
;
Seoul*
;
Soil
;
Trichuris
;
Water
10.Normal Postoperative Computed Tomography Findings after a Variety of Pancreatic Surgeries.
Ji Won SEO ; Ho Kyoung HWANG ; Minwook LEE ; Ki Whang KIM ; Chang Moo KANG ; Myeong Jin KIM ; Yong Eun CHUNG
Korean Journal of Radiology 2017;18(2):299-308
Pancreatic surgery remains the only curative treatment for pancreatic neoplasms, and plays an important role in the management of medically intractable diseases. Since the original Whipple operation in the 20th century, surgical techniques have advanced, resulting in decreased postoperative complications and better clinical outcomes. Normal postoperative imaging findings vary greatly depending on the surgical technique used. Radiologists are required to be familiar with the normal postoperative imaging findings, in order to distinguish from postoperative complications or tumor recurrence. In this study, we briefly review a variety of surgical techniques for the pancreas, and present the normal postoperative computed tomography findings.
Pancreas
;
Pancreatic Neoplasms
;
Postoperative Complications
;
Recurrence