1.Presence of E-cadherin in Cultured Amnionic Cells.
Ki Hwan LEE ; Young Suk SEO ; Kil Chun KANG
Korean Journal of Obstetrics and Gynecology 1999;42(12):2690-2694
OBJECTIVES: Cell adhesion molecules may play a role in integrating amnionic membrane. The objective of this study was to prove E-cadherin mRNA and proteins in cultured human amnionic cells. METHODS: We cultured amnionic cells from 4 women undergoing cesarean section without labor. E-cadherin was determined by immunohistochemistry and Western ligend blotting. To demonstrate E-cadherin mRNA, reverse transcription-polymerase chain reaction was performed. RESULTS: On immunohistochemistry, E-cadherin was abundantly showed on the cytoplasm of the cells. Western ligend blotting showed clear 120 kDa bands on four specimens, and relatively weak band on one specimen. Reverse transcription-polymerase chain reaction showed 432 BP bands. CONCLUSION: We proved E-cadherin and its mRNA by immunohistochemistry, Western ligend blotting and reverse transcription-polymerase chain reaction in cultured human amnionic cells.
Amnion*
;
Cadherins*
;
Cell Adhesion Molecules
;
Cesarean Section
;
Cytoplasm
;
Female
;
Humans
;
Immunohistochemistry
;
Membranes
;
Pregnancy
;
RNA, Messenger
2.Comparative study of immune parameters in advanced gastric cancer and tuberculous pleurisy.
No Kyung KIM ; Dae Suk HUH ; Chang In SEO ; Young Hwan KIM
Journal of the Korean Cancer Association 1993;25(3):315-324
No abstract available.
Stomach Neoplasms*
;
Tuberculosis, Pleural*
3.Reconstruction of the posterior cruciate ligament.
Young Bok JUNG ; Soo Yong KANG ; Jung Hwan SEO
Journal of the Korean Knee Society 1991;3(1):23-29
No abstract available.
Posterior Cruciate Ligament*
4.Neurobiology of Alzheimer's Disease.
Young Cho CHUNG ; Seung Woo SEO ; Seung Hwan LEE
Journal of the Korean Society of Biological Psychiatry 2001;8(1):62-70
Alzheimer's disease(AD) is associated with a characteristic neuropathology. The major hallmarks of AD are senile plaques(SPs) and neurofibrillary tangles(NFTs). beta-amyloid protein(Abeta) is derived from the proteolysis of amyloid precursor protein(APP) and then converted to SPs. Mature SPs produce cytotoxicity through direct toxic effects and activation of microglia and complement. NFTs are composed of paired helical filaments(PHFs) including abnormally phosphorylated form of the microtubule-associated protein(MAP) tau and increased tau level in cerebrospinal fluid may be observed in most AD. The aggregation of Abeta and tau formation are thought to be a final common pathway of AD. Acetycholine, dopamine, serotonin, GABA and their receptors are associated with AD. Especially, decreased nicotinic acetylcholine receptors(nAChRs) in AD are reported. Genetic lesions associated with AD are mutations in the structural genes for the APP located on chromosome 21, presenilin(PSN)1 located on chromosome 14 and PSN2 located on chromosome 1. Also, trisomy 21, Apo-E gene located on chromosome 19, PMF locus, low density lipoprotein receptor-related protein and alpha-macroglobulin increase risk of AD. In this article, we will review about the neurobioloby of AD and some newly developed research areas.
Acetylcholine
;
Alzheimer Disease*
;
Amyloid
;
Amyloid beta-Peptides
;
Apolipoproteins E
;
Cerebrospinal Fluid
;
Chromosomes, Human, Pair 1
;
Chromosomes, Human, Pair 14
;
Chromosomes, Human, Pair 19
;
Chromosomes, Human, Pair 21
;
Complement System Proteins
;
Dopamine
;
Down Syndrome
;
gamma-Aminobutyric Acid
;
Genetics
;
Lipoproteins
;
Microglia
;
Neurobiology*
;
Proteolysis
;
Serotonin
5.A Clinical Study of Reye`s Syndrome.
Young Seo PARK ; Hwan Jong LEE ; Sang Pok SUK ; Jeong Kee SEO ; Kwang Wook KO
Journal of the Korean Pediatric Society 1984;27(11):1088-1096
No abstract available.
6.Measurement of BMD ( Bone Mineral Density ) and Hip Axis Length for Predicting Hip Fracture.
Young Chan SON ; Jung Hwan SEO ; Jae Do KIM ; Jung Hwan SON ; Young Ki HONG ; Jung Ho PARK
The Journal of the Korean Orthopaedic Association 1997;32(1):62-67
Osteoporosis is a disease characterized by excessive bone loss or osteopenia particulary in the axial skeleton at the site of fracture, such as the spine and proximal femur. Since the strength of both spine and femur is directly proportional to the bone mass, this osteoporosis always increases the risk of fracture. In this study, to evaluate whether a simple measurement of femoral geometry and BMD value are related with hip fracture, we obtained DEXA Scan (Lunar Expert-XL) of hip by retrospective study. DEXA scan was measured on 70 control people and 17 hip fracture patients aged 50 or older. The result is I. The mean Ward BMD value of hip fracture group is significantly lower than control group (Hip fracture group: 0.52g/cm2, Control group: 0.67g/cm2 P=0.0001) 2. The mean L-spine BMD value of hip fracture group is significantly lower than control group (Hip fracture group: 0.81g/cm, Control group: 0.97g/cm2 P=0.0002) 3. The mean femur axis length of hip fracture group is longer than control group (Hip fracture group: 6.77g/cm2, Control group: 6.57g/cm2 P=0.006) As a conclusion, the measurement of BMD and hip axis length in DEXA scan is an effective method for screening the hip fracture risk patient and BMD value of femur, hip axis length and L- spine BMD value are strongly associated with hip fracture.
Absorptiometry, Photon
;
Axis, Cervical Vertebra*
;
Bone Density*
;
Bone Diseases, Metabolic
;
Femur
;
Hip*
;
Humans
;
Mass Screening
;
Osteoporosis
;
Retrospective Studies
;
Skeleton
;
Spine
7.Comparative of P spectroscopy and histochemical mapping in myocardial infarction in cats.
Mi Young KIM ; Tae Hwan LIM ; Seong Wook PARK ; Pyung Hwan PARK ; Dong Man SEO ; Tae Keun LEE ; Sang Tae KIM ; Young Hwan KIM ; Chi Woong MUN
Journal of the Korean Radiological Society 1993;29(5):1084-1092
This study was performed to assess the accuracy of 31P magnetic resonance spectroscopy(MRS) in the evaluation of myocardial ischemia in cats. Twelve cats underwent myocardial ischemia and reperfusion induced by 90 minutes ligation followed by 90 minutes recirculation of the left anterior descending coronary artery (LAD). MRS was performed using a 4.7T Biospec MRS/MRI system (Bruker, Switzerland). An inner diameter 1.5cm-sized doubly tuned surface coli was used for the collection of the MR signal. The coli was implanted to the epicardial surface at the expected area of infarction. 31P MRS was acquired before and during the periods of ischemia and reperfusion with 5-minute to 30-minute of intervals. After completion of the 31P MRS study, animals were sacrificed and the hearts were excised for 2,3,5-triphenyl tetrazolium chloride (TTG0 histochemical staining. The area of infarct was measured on the photographs of TTG stained heart slices using a computer programmed planimetry and the results were compared with those of the 31P MRS study. The level of phosphocreatine (PCr) was decreased to 28.2±6.9% of the baseline level 90 minutes after occlusion and recovered to 43.8±4.8% of the baseline level at the end of the reperfusion. A 50% depletion of PCr was reached 5 minutes after the LAD occlusion. The ATP was decreased to a 26.6±3.6% of the baseline level 90 minutes after occlusion and recovered to a 35.9±6.0 of the baseline level 90 minutes after reperfusion. The decreasing rate of ATP was slower than that of PCr showing a 50% of depletion 15 minutes after occlusion. The PCr/ATP ratio was 1.16±0.09 at the baseline, decreased to 0.88±0.07 at 30 minutes of occlusion, and then progressively increased during the late ischemic and reperfused periods. The ratio of the infarcted area to the effective signal area of the surface coli was inversely correlated to the ATP (r=0.68) and PCr (r=0.40) levels obtained at the end of reperfusion. In conclusion, 31P MRS reflects the changes in myocardial high energy phosphorous metabolism during the actue ischemia and reperfusion. If on adequate localization technique is feasible, 31P MRS can be used clinically in the diagnosis and monitoring of the patients with acute myocardial infarction.
Adenosine Triphosphate
;
Animals
;
Cats*
;
Coronary Vessels
;
Diagnosis
;
Heart
;
Humans
;
Infarction
;
Ischemia
;
Ligation
;
Metabolism
;
Myocardial Infarction*
;
Myocardial Ischemia
;
Phosphocreatine
;
Polymerase Chain Reaction
;
Reperfusion
;
Spectrum Analysis*
8.Post Traumatic Chronic Lymphedema: A case report.
Young Joo SIM ; Jeong Hwan SEO ; Myoung Hwan KO ; Sung Hoo JUNG
Journal of the Korean Academy of Rehabilitation Medicine 2007;31(2):261-264
Trauma is one of the causes of lymphedema. However, we usually do not consider it as a cause of the lymphedema, thus, we often fail to take care of the patients properly. We report a patient with post traumatic lymphedema and the result of complex decongestive therapy, and reviewed the clinical, lymphoscintigraphic findings and treatment.
Humans
;
Lymphedema*
9.Long-term Therapeutic Effect of Intravitreal Bevacizumab (Avastin) on Myopic Choroidal Neovascularization.
Young Seung SEO ; Moo Hwan CHANG
Journal of the Korean Ophthalmological Society 2011;52(1):34-40
PURPOSE: To evaluate the long-term therapeutic effects of intravitreal bevacizumab on myopic choroidal neovascularization (CNV). METHODS: Medical records of 6 patients who underwent intravitreal bevacizumab injection for myopic CNV and were followed for more than 2 years, were retrospectively investigated. The best corrected visual acuity was compared at 1,3,12, and 24 months after injection. Two years after the injection, a fluorescein angiography and optical coherence tomography (OCT) were performed to evaluate the central macular thickness and leakage of CNV. RESULTS: The mean best corrected visual acuity was 1.16 +/- 0.43 (logMAR), 0.45 +/- 0.21 (logMAR), 0.29 +/- 0.23 (logMAR), 0.14 +/- 0.11 (logMAR), and 0.11 +/- 0.06 (logMAR) at baseline, 1, 3, 12, and 24 months after injection, respectively. CONCLUSIONS: Intravitreal bevacizumab injection for the treatment of myopic CNV was effective in maintaining postoperative visual acuity for 2 years.
Antibodies, Monoclonal, Humanized
;
Choroid
;
Choroidal Neovascularization
;
Fluorescein Angiography
;
Humans
;
Intravitreal Injections
;
Medical Records
;
Retrospective Studies
;
Tomography, Optical Coherence
;
Visual Acuity
;
Bevacizumab
10.Effectiveness of the PRISM III Score for Predicting Mortality in Pediatric Intensive Care Neurologic Patients.
Jung Seo PARK ; Sung Hwan KIM ; Seung Soo SHEEN ; Seong Mi JEONG ; Young Joo LEE
Journal of the Korean Child Neurology Society 1998;5(2):271-281
PURPOSE: The Pediatric Risk of Mortality(PRISM) III score was developed from the Physiologic Stability Index(PSI) to assess pediatric ICU mortality and Provide an objective data as a severity index. Although the PRISM score has been applied to many comparisions and analyses in previous studies, there are few reports applied to pediatric intensive care patients in Korea. To evaluate the effectiveness of the PRISM III score as a severity index for expecting mortality and find important variables influencing mortality, we applied this scoring scale to pediatric neurologic patients admitted to the ICU and analyzed the data statistically. METHODS: Data collection was done by careful review of medical records and scored each clinical variable. The outcome at discharge was determined as non-survival, survival, and hopeless discharge. Determination of mortality in the hopeless discharge group was done within 48 hours after discharge by telephone interview. The study populations were classified into four groups; CNS infection(26 patients), acute encephalopathy(31 patients), status epilepticus(35 patients) and cerebrovascular disorder(4 patients). The difference of the PRISM III score between the survival group and non-survival group was compared by using the nonparametric Mann~Whitney test in the entire study population and for each diagnostic group. To confirm the degree of fitness between the actual mortality and Predicted mortality, the Hosmer-Lemeshow goodness-of-fit test, a multiple logistic regression model was used. All clinical variables used for scoring were compared for survivals and non-survivals by the Chi-square test. f values <0.05 were considered significant. RESULTS: The PRISM III score was significantly higher in the non-survival groups than in the survival group. Predicted mortality from the PRISM III score has fitted to actual mortality According to the results of analyses in each diagnostic groups, the PRISM III score was higher in non-survivals of the acute encephalopathy and CNS infection groups, but statistically insignificant in the cerebrovascular disorders and status epilepticus groups. The important variables of the PRISM III score associated with mortality were mental state, Pupil reflex, systolic blood pressure, acidosis, blood sodium level blood creatinine level, blood glucose level, and PT/PTT. , CONCLUSION: The PRISM III score is helpful in predicting mortality in pediatric intensive care neurologic patients, especially those in the acute encephalopathy or the CNS infection groups. However, this score was not useful in the status epilepticus group, and insignificant in cerebrovascular group. Due to the smallness of the study group, more massive and comprehensive studies are needed as a follow up to this study.
Acidosis
;
Blood Glucose
;
Blood Pressure
;
Cerebrovascular Disorders
;
Creatinine
;
Data Collection
;
Follow-Up Studies
;
Humans
;
Critical Care*
;
Interviews as Topic
;
Korea
;
Logistic Models
;
Medical Records
;
Mortality*
;
Pupil
;
Reflex
;
Sodium
;
Status Epilepticus