1.Neuromuscular Blocking and Vagolytic Effects of Atracurium, Cisatracurium, and Mivacurium in the Anesthetized Cat.
Mi Yong CHOI ; Yon Hee SHIM ; Yang Sik SHIN ; Hee Koo YOO ; Jong Jin LEE
Korean Journal of Anesthesiology 2000;38(1):123-129
BACKGROUND: Atracurium is a benzylisoquinolium nondepolarizing neuromuscular blocking drug. It releases histamine upon the rapid administration of more than 2 x ED95. Cisatracurium is about three to four times more potent than atracurium, less likely to release histamine, and has weaker cardiovascular or autonomic effects. Mivacurium releases histamine to about the same degree as atracurium at the same dose. This study was undertaken to reevaluate the experimental model for the evaluation of effects on the autonomic nervous system, and to determine the neuromuscular blocking profiles and the vagolytic effects of atracurium, cisatracurium and mivacurium in cats. METHODS: Cats, either sex, anesthetized with pentobarbital, were used. Neuromuscular blocking effects were assessed using the effects on the anterior tibialis muscle twitch evoked with supramaximal stimuli (0.2 ms-duration, 0.1 Hz). Inhibition of the parasympathetic nervous system was assessed in response to bradycardia to vagal nerve stimulation with ten-second trains of square-waves (0.5 ms-duration, 20 Hz). The dose-response curves for both neuromuscular blocking and vagolytic actions were determined for each animal. The dose-response curves were constructed in cumulative fashion. The response for vagal stimuli was measured two minute after each dosing. Vagal ID50 (The doses that produced 50% inhibition of the response to vagus nerve stimulation) were determined. RESULTS: NMB ED95 and NMB ED50, respectively, were 102.0 +/- 28.3 and 143.7 +/- 40.5 microgram/kg for atracurium, 81.4 +/- 13.3 and 110.7 +/- 18.8 microgram/kg for cisatracurium, and 56.8 +/- 17.4 and 74.2 +/- 25.0 microgram/kg for mivacurium. Vagal ID50 was 2,654 +/- 1,651 microgram/kg for atracurium, 655 +/- 389 microgram/kg for cisatracurium, and 606 +/- 182 microgram/kg for mivacurium. The vagal ID50/NMB ED95 and vagal ID50/NMB ED50 were 18.5 and 26.0 for atracurium, 5.9 and 8.1 for cisatracurium, and 8.2 and 10.7 for mivacurium. CONCLUSIONS: Atracurium has a wider margin of safety only for vagal stimulation as compared with cisatracurium and mivacurium. However, we couldn't exclude that either sympathetic stimulation or histamine release might contribute to heart rate.
Animals
;
Atracurium*
;
Autonomic Agents
;
Autonomic Nervous System
;
Bradycardia
;
Cats*
;
Heart Rate
;
Histamine
;
Histamine Release
;
Models, Theoretical
;
Neuromuscular Blockade*
;
Parasympathetic Nervous System
;
Pentobarbital
;
Vagus Nerve
;
Vagus Nerve Stimulation
2.CT findings of pancreas lipomatosis and associated diseases.
Seung Yon BAEK ; Seung Chul LEE ; Mi Young KIM ; Moon Gyu LEE ; Kyoung Sik CHO ; Yong Ho AUH
Journal of the Korean Radiological Society 1992;28(5):749-753
Pancreas lipomatosis is definde as fatty replacement of pancreatic acinar cells. Of the nine cases evaluated, seven cases (77.8%) of lipomatosis were limited inbody and tail, one case (11.1%) showed total lipomatosis excluding uncinate process and the remaining one case (11.1%) only in tail. As to the severity of lipomatosis, complete fat replacement in body and tail was found in four cases (44.4%), incomplete body and complete tail involvement in two (22.2%), incomplete body and tail, complete all except uncinate process, and complete tail involvements were found in one case (11.1%) each. Associated or predisposing factors included three diabetes mellitus (33.3%) combined with pancreas divisum, pancreas lithiasis and cholelithiasis respectively, hepatitis (22.2%) in two, and pseudocyst (11.1%) in one case, but in three cases (33.3%) nothing was found. In conclusion, pancreas lipomatosis was easily diagnosed by the abdominal CT and it was associated or predisposed by several e tities but had no major clinical symptoms, such as pancreatic insufficiency.
Acinar Cells
;
Causality
;
Cholelithiasis
;
Diabetes Mellitus
;
Exocrine Pancreatic Insufficiency
;
Hepatitis
;
Lipomatosis*
;
Lithiasis
;
Pancreas*
;
Tail
;
Tomography, X-Ray Computed
3.A clinical study on carcinoma of the cervix associated with pregnancy.
Hye Jung KIM ; Yong Hang AHN ; Kyung Mi PARK ; Eun Yon CHO ; Seung Wook YOON ; Sung Rock MOON
Journal of the Korean Academy of Family Medicine 1991;12(1):88-93
No abstract available.
Cervix Uteri*
;
Female
;
Pregnancy*
4.Effect of Prune Supplementation on Dietary Fiber Intake and Constipation Relief.
Young Hee HAN ; Mi Yong YON ; Tai Sun HYUN
Korean Journal of Community Nutrition 2008;13(3):426-438
The purpose of this study was to examine bowel habits, dietary habits, and nutrient intake of constipated adults, and the effects of prune products on relieving constipation symptoms. Fifty one adults with self-reported constipation (mean age 23 years, range 19-41 years, 10 males and 41 females) participated in this study. After a baseline survey on bowel habits and dietary habits, participants were asked to consume at least 50 g of prune and 200 ml of prune juice per day during a 4-week period in addition to usual diet. Nutrient intake was estimated by a 24 hour recall at the baseline and once every week by diet records during the intervention. Data were analyzed after classifying the subjects into mild constipation group and severe constipation group by the severity of the symptoms. During the intervention, the subjects with mild constipation consumed 56 g of prunes (about 5.6 fruits) and 200 ml of prune juice, and the subjects with severe constipation consumed 59 g of prunes (about 5.9 fruits) and 207 ml of prune juice. Average intakes of energy, dietary fiber and water of the subjects in the mild constipation and severe constipation group increased during the intervention compared to the baseline. Average dietary fiber intake of the mild constipation and severe constipation groups significantly increased from 12.5 g and 11.6 g at the baseline to 18.5 g and 16.8 g after consuming prune products, respectively. These changes were accompanied by an increase in the number of bowel movements, a decrease of defecation time, a change to a softer stool consistency, and a decrease of abdominal pain during defecation. Seventy two subjects answered that prune products were effective to improve their overall constipation symptoms. Our data show that supplementation of prune products is effective to provide energy, dietary fiber and water, and to relieve constipation symptoms for constipated adults.
Abdominal Pain
;
Adult
;
Constipation
;
Surveys and Questionnaires
;
Defecation
;
Diet
;
Diet Records
;
Dietary Fiber
;
Drinking
;
Food Habits
;
Humans
;
Male
;
Water
5.Dietary Habits, Food Frequency and Dietary Attitudes by Gender and Nutrition Knowledge Level in Upper-grade School Children.
Mi Yong YON ; Young Hee HAN ; Tai Sun HYUN
Korean Journal of Community Nutrition 2008;13(3):307-322
This study was carried out to examine dietary habits, food frequency and dietary attitudes by gender and nutrition knowledge level in upper-grade school children. Subjects were 223 boys and 208 girls attending 13 elementary schools (5 th and 6 th graders). A self-administered questionnaire was developed to assess nutrition knowledge, dietary habits, food frequency, and dietary attitudes. Nutrition knowledge score assessed by 19 questions was significantly higher in girls than in boys. There were significant differences between boys and girls in several items in dietary habits such as enough breakfast time, dinner regularity, number of side dishes, eating speed, type of snack after dinner, and degree of saltiness of dishes. Girls consumed staple foods such as rice, noodles or bread more frequently, and consumed less frequently ramyun, fried foods, fast foods, and Chinese foods than boys. In addition, girls had more positive dietary attitudes in trying to reduce fast foods, Chinese foods, ramyun and fried foods. Also children in the high or moderate nutrition knowledge level groups had better dietary habits in frequency of meals, frequency of breakfast, enough breakfast time, dinner regularity, activity during the meal, number of side dishes, eating speed, type of snack after dinner, and better food choices by eating staple foods and vegetable side dishes, meats and beans more frequently, and fried foods, doughnuts/ cakes, Chinese foods less frequently, and had better dietary attitudes in breakfast, vegetables and fruit intake than children in the low nutrition knowledge level group. Our results showed that dietary habits, food frequency and dietary attitudes were different by gender and nutrition knowledge level. These results suggest that in developing nutrition education program for elementary school children, the differences between gender and nutrition knowledge level should be considered. Nutrition education in elementary schools may change dietary habits and dietary attitudes through increasing nutrition knowledge.
Asian Continental Ancestry Group
;
Bread
;
Breakfast
;
Child
;
Eating
;
Fabaceae
;
Fast Foods
;
Food Habits
;
Fruit
;
Humans
;
Meals
;
Meat
;
Snacks
;
Vegetables
;
Surveys and Questionnaires
6.Expression of TIM-3, Human beta-defensin-2, and FOXP3 and Correlation with Disease Activity in Pediatric Crohn's Disease with Infliximab Therapy.
Mi Jin KIM ; Woo Yong LEE ; Yon Ho CHOE
Gut and Liver 2015;9(3):370-380
BACKGROUND/AIMS: This study investigated the expression of T cell immunoglobulin- and mucin-domain-containing molecule 3 (TIM-3), human beta-defensin (HBD)-2, forkhead box protein 3 (FOXP3), and the frequency of CD4+ CD25+ FOXP3+ regulatory T cells (Tregs) in children with Crohn's disease (CD) during infliximab therapy. METHODS: We enrolled 20 CD patients who received infliximab treatment for 1 year. Peripheral blood and colonic mucosal specimens were collected from all CD patients and from healthy control individuals. RESULTS: A significant difference in TIM-3 mRNA expression was evident in peripheral blood mononuclear cells and colonic mucosa between CD patients before infliximab therapy and the healthy controls (p<0.001 and p=0.005, respectively). A significant difference in HBD-2 mRNA expression was found in colonic mucosa between CD patients before infliximab therapy and the healthy controls (p=0.013). In the active phase of CD, at baseline, the median percentage of T cells that were CD25+ FOXP3+ was 1.5% (range, 0.32% to 3.49%), which increased after inflixmab treatment for 1 year to 2.2% (range, 0.54% to 5.02%) (p=0.008). CONCLUSIONS: Our study suggests that both the adaptive and innate immune systems are closely linked to each other in CD pathogenesis. And the results of our study indicate that it could be a useful therapeutic tool, where restoration of TIM-3, HBD-2 and the function of Tregs may repair the dysfunctional immunoregulation in CD.
Adolescent
;
Case-Control Studies
;
Colon/immunology
;
Crohn Disease/*drug therapy/immunology/*metabolism
;
Female
;
Forkhead Transcription Factors/*metabolism
;
Gastrointestinal Agents/*therapeutic use
;
Humans
;
Infliximab/*therapeutic use
;
Intestinal Mucosa/immunology
;
Leukocytes, Mononuclear/*metabolism
;
Male
;
Membrane Proteins/*metabolism
;
T-Lymphocytes, Regulatory/immunology
;
beta-Defensins/*metabolism
7.Lead Breakage in Implanted Spinal Cord Stimulation Systems: A case report.
Mi suk KOO ; Yong Chul KIM ; Mi hyun KIM ; Sahngun Francis NAHM ; Jeong Hun SUH ; Hwa Yong SHIN ; Ji yon JO ; Yong Min CHOI ; Sang Chul LEE
Korean Journal of Anesthesiology 2008;54(2):229-231
Spinal cord stimulation (SCS) has become an established clinical option for treatment of refractory chronic pain. Current hardware and implantation techniques for SCS are already highly developed and continuously improving, however equipment failures over the course of the long-term treatment are still encountered in a relatively high proportion of treated cases. Percutaneous SCS leads seem to be particularly prone to dislocation and insulation failures. We describe our experience of lead breakage in implanted SCS which was inserted to a complex regional pain syndrome patient who obtained satisfactory pain relief after the revision of SCS.
Chronic Pain
;
Dislocations
;
Equipment Failure
;
Humans
;
Spinal Cord
;
Spinal Cord Stimulation
8.Immunohistochemical Study of p53 Gene Expression in Astrocytic Neoplasms.
Kum WHANG ; Yong Pyo HAN ; Mi Yon CHO ; Sun Hee JUNG ; Hun Ju KIM
Journal of Korean Neurosurgical Society 1995;24(3):231-238
Nineteen astrocytic neoplasms, such as 9 cases of glioblastoma multiforme, 6 cases of anaplastic astrocytoma and 4 cases of low grade astrocytoma, were analysed in view of the relationship between histopathologic grade, nuclear pleomorphism, grade of mutant p53 gene expression and mean survival time after operation. The histopathologic classification by Ringertz and immunohistochemical stain for mutant p53 gene with the DO-7 anti-p53 oncoprotein mouse monoclonal antibody were applied, and the results obtained were as follows; 1) Among 19 cases, 18 cases were located in the supratentorium, where 13 cases(42%) were located in the left and 17 cases(55%) in the right. 2) The p53 gene expression was detected in 12(63.2%) of the cases, as revealed by positive nuclear staining. All cases of glioblastoma multiforme showed p53 gene expression, compared with two(33.3%) cases of anaplastic astrocytoma and one(25%) case of low grade astrocytoma. The frequency and degree of histopathologic grade(p=0.03). 3) The mean survival time after operation was 29.49+/-4.08 months in cases with p53-negative tumors and 12.93+/-3.14 months in cases with p53-positive tumors(p<0.05). 4) Both histopathological classification and p53 gene expression showed a significant influence on servival(p=0.02 and p=0.03, respectively). 5) The relative risk for survival time was the highest in p53 gene expression. In conclusion, p53 gene expression appears to be one of the recommendable prognosticators among astrocytic neoplasms.
Animals
;
Astrocytoma
;
Classification
;
Genes, p53*
;
Glioblastoma
;
Mice
;
Survival Rate
9.MR Findings of Sturge-Weber Syndrome : Emphasis on Vascular Abnormality.
Ho Kil BAEK ; Tae Yon NO ; Jong Bu WON ; Seung Kuk BAIK ; Mi Jeong SHIN ; Bong Ki KIM ; Han Yong CHOI
Journal of the Korean Radiological Society 1997;37(3):409-414
PURPOSE: To observe MR findings of vascular abnormality in Sturge-Weber syndrome and to determine the value of MRI in diagnosis. MATERIALS AND METHODS: Ten patients with Sturge-Weber syndrome (age : 3 months-32 years)were evaluated by MR imaging ; in six and four cases, respectively, the results were correlated with those of CT and angiography. We retrospectively analysed changes in the cortical vein and deep venous system, including the medullary and subependymal vein, as well as an largement of the choroid plexus, leptomeningeal enhancement, and changes in diploic space. RESULTS: In all cases except one, in which non-contrast enhanced study had been performed, varying degrees of leptomeningeal enhancement were seen. In nine cases the cortical vein became smaller; enlargement of the choroid plexus was seen in eight cases, change in the diploic space in seven (including three in which there was angiomatous involvement), and enlargement of the deep venous system in seven. In younger patients, collateral pathways were less developed and leptomeningeal angiomatous changes were more pronounced than in those who were older. CONCLUSION: MRI is a useful modality for the evaluationn of vascular changes in Sturge-Weber syndrome. These changes vary according to a patient's age and the duration of the disease.
Angiography
;
Choroid Plexus
;
Diagnosis
;
Humans
;
Magnetic Resonance Imaging
;
Retrospective Studies
;
Sturge-Weber Syndrome*
;
Veins
10.A Case of Solitary Rectal Ulcer Syndrome.
Mi Jung KIM ; Kyung Hwan YOON ; Jong Sun REW ; Sei Jong KIM ; Chong Mann YON ; Young Jin KIM ; Sang Woo JUHNG ; Joo Yong YOO
Korean Journal of Gastrointestinal Endoscopy 1991;11(1):113-116
Solitary rectal ulcer syndrome (SRUS), which has a characteristic histopathologic features, is an uncommon disease in young adults of either sex. The common clinical features are bloody stool and anal pain. By rectosigmoidoscopy, the lesions are typically seen as single or multiple shallow ulcers with hyperemic margins or polypoid mass. Variable appearance of the ulcer may cause coinical confusion mimicking even a malignant neoplasm. The condition is essentially benign and may persist unchanged for many years. Therefore, it is most important to distinguish solitary ulcer from rectal malignancy. We report a case of solitary rectal ulcer syndrome canfirmed by histopathologic finding, the initial clinical diagnosis was a malignant neoplasm.
Diagnosis
;
Humans
;
Ulcer*
;
Young Adult