1.Quantitative Measurement of Membrane Na+-K+ ATPase Activity using Thallium-201: Comparison with Rubidium-86.
Jaetae LEE ; Jae Tae LEE ; Sang Kyun SOHN ; In Kyu LEE
Korean Journal of Nuclear Medicine 1998;32(2):121-128
PURPOSE: Na+-K+ ATPase Activity has beem estimated by the degree of inhibition of cation transport by cardiac glycosides (ouabain) using Rb-86 as a substrate. The biological characterist-Isc of T1-201 is known to be simiIar to those of potassium as a transport substrate in the presence of glucose, insulin or phobol myristate acetate (PMA). The purpose of this study was to measure ouabain sensitive Na+-K+ ATPase activity using T1-201 and compare with that using Rb-86. MATERIALS AND METHODS: Smooth muscle cells isolated from rat aorta or human placental umbilical artery were cultured, and used to measure cellular Na+-K+ ATPase activity. Na+-K+ ATPase activity was measured as a percentage decrease in cellular uptake of T1-201 or Rb-86 by ouabain under the presence of glucose, insulin or PMA in media. RESULTS: Na+-K+ ATPase ase activity measured with T1-201, as a transport substrate, was not different from those measured with Rb-86 in rat or human smooth muscle cell preparation. Incubation with high concentration glucose resulted in about 30% decrease in enzyme activity. In contrast, insulin or PMA resulted in 50-70% or 28% increases from baseline activity, respectively. CONCLUSION: These results suggests that T1-201 could replace Rb-86 in measurement of ouabain sensititive Na+-K+ ATPase activity in vitro. High level of glucose concentration decreased cellular Na+-K+ ATPase activity, but insulin or PMA increased it.
Adenosine Triphosphatases*
;
Animals
;
Aorta
;
Cardiac Glycosides
;
Glucose
;
Humans
;
Insulin
;
Membranes*
;
Myocytes, Smooth Muscle
;
Myristic Acid
;
Ouabain
;
Potassium
;
Rats
;
Umbilical Arteries
2.Upper and lower extremity reconstruction with the forearm flap.
Hoon Bum LEE ; Dong Kyun RAH ; Sang Hun LEE
Journal of the Korean Society of Plastic and Reconstructive Surgeons 1991;18(6):1138-1147
No abstract available.
Forearm*
;
Lower Extremity*
3.Echocardiographic Assessment of Left Ventricular Function in Ventricular Premature Beats.
Sang Hack NAM ; Bang Hun LEE ; Chung Kyun LEE
Korean Circulation Journal 1982;12(1):99-105
Ventricular premature beats(VPB) are the most common cardiac arrhythmia and frequently found in apparently normal healthy persons as well as in various heart diseases. Postectopic potentiation of ventricular contraction has widely reported by electrocardiography. In this study, the authors performed comparative assessment of the left ventricular function at the preextrasystolic, extrasystolic and postextrasystolic beats by M-mode echocardiography and electrocardiography. The results obtained were as followings; 1) Among 22 patients of isolated, unifocal ventricular premature beats with fully compensatory pause, male were 6 and female 16, mean age being 47.2 years. 2) Hypertensive heart disease was the most common underlying disease of ventricular premature beats(5 patients) and the others were valvular heart diaeases(3), ischemic heart diseases(3), cardiomyopathy(2), intracerebral hemorrhagy(1), atrial septal defect of secundumtype(1), cor pulmonale(1), pericarditis(1), 1degree A-V block(1) and enteric fever(1). In 3 patients the causes were not clarified. 3) R wave amplitude was higher in the postextrasystolic beat(2.02+/-0.79cm) than preestrasystolic beat(1.86+/-0.66cm) 4) PEP/LVET ratio showed more decrease(18%) in postextrasystolic beat than that of preextrasystole. 5) Diastolic filling time of mitral valve was more reduced in the extrasystole than preextrasystole, but that of postextrasystole exceeded the preextrastystole. 6) Aortic cusps separation was more decreased in the extrasystole than preextrasystole and slightly more increased in the postextrasystole than preextrasystole. 7) LVID, LSa, ENa, DeltaEN/Deltat, LVEDV, SV and LV mass showed more decrease in extrasystole compared with those in pre-and postextrasystole, which was higher than preextrasystole. But LVESV was slightly lower in extrasystole than preextrasystole. 8) In extrasystolic beat, LVEDV, LVESV, stroke volume, and ejection fraction of ventri cular premature beat were 15.77%, 0.18%, 24.05% and 12.21% lower, respectively, than those of preextrasystole. And in the postextrasystole, LVEDV, LVESV, stroke volume and ejection fraction were 23.35%, 2.42%, 28.51% and 10.4% higher, respectively, than these of preextrasystole.
Arrhythmias, Cardiac
;
Cardiac Complexes, Premature*
;
Echocardiography*
;
Electrocardiography
;
Female
;
Heart
;
Heart Diseases
;
Heart Septal Defects, Atrial
;
Humans
;
Male
;
Mitral Valve
;
Stroke Volume
;
Ventricular Function, Left*
4.Comparison of Diagnostic and Post-therapy Radioiodine Scan in Well-Differentiated Thyroid Cancer and the Clinical Outcome.
Seok Mo LEE ; Sang Kyun BAE ; Ha Yong YUM
Korean Journal of Nuclear Medicine 2000;34(1):22-29
PURPOSE: We compared the first postoperative diagnostic and post-therapy scans of patients who received therapeutic doses of I-131, to investigate the difference in clinical outcomes between patients with concordant findings of diagnostic and post-therapy scans and patients with discrepant (more lesions in post-therapy scan) findings. MATERIALS AND METHODS: The first postoperative diagnostic and post-therapy radioiodine scans of one hundred forty three patients with well differentiated thyroid carcinoma were reviewed. Diagnostic scans were obtained following ingestion of 185 MBq of I-131 and post-therapy scans were obtained after therapeutic dose of 3.7~9.3 GBq of I-131. Successful ablation was defined as no radioiodine uptake on diagnostic radioiodine scan and normal range of serum thyroglobulin level (<10 ng/ml) during serum TSH elevation. RESULTS: Discrepant scan findings were noted in 25 (17.5%) patients. Twenty-two patients (15.4%) showed more lesions in post-therapy scan and 3 patients (2.1%) showed stunning effect. Nine (64.3%) of 14 patients with distant metastasis revealed metastatic lesion(s) only on post-therapy scan. Stunning effect was considered as sublethal damage in 1 patient and treatment by a diagnostic dose in 2 patients. Ablation was achieved in 52.4% (75/143) of all patients. Ablation rate and mean cumulative radioiodine dose were not different statistically between concordant and discrepant groups. CONCLUSION: There were 17.5% difference between diagnostic and post-therapy scan findings when using 185 MBq of I-131 as a diagnostic dose. However, 64.3% of distant metastases were revealed only on post-therapy scan. Ablation rate and mean cumulative radioiodine dose were not different statistically between concordant and discrepant groups. The stunning effect was considered as not only sublethal damage but also treatment by a small diagnostic dose of radioiodine.
Eating
;
Humans
;
Neoplasm Metastasis
;
Reference Values
;
Thyroglobulin
;
Thyroid Gland*
;
Thyroid Neoplasms*
5.The Changes of Bacillary and Granularity Indices of Mycobacterium Leorae Under DDS Therapy.
Chee Kyun SHU ; Sang Lip CHUNG ; Sung Il LEE
Korean Journal of Dermatology 1971;9(3):3-8
The authors investigated serial changes of bacillary and granularity indices from 49 previously non-treated lepromatous leprosy patients under DDS therapy during 24 month period, and the following results were obtained. 1) Pretreatment bacillary index was highest on eye brows, and chins, ear lobes, arms, legs, backs in decreasing order. The proportion of fall of B.I. during therapy showed similar tendencies in each site of smears, the average decrease being 1. 2 in the first year and 0. 8 in the second year. 2) The average granularity index before therapy was 2. 5, the rise of G.I. was rapid during first 12 months, slower during next 6 months, and no significant changes were seen during last 6 months. 3) The changes of G.I. were faster and more sensitive to therapy than that of B.I. Therefore, it. seems more valuable assesing the response of therapy, drug resistance, prognosis, etc 4) 300 mg of DDS per week appears to be sufficient for maintaining the therapeutic dosage.
Arm
;
Chin
;
Drug Therapy
;
Ear
;
Equidae
;
Humans
;
Leg
;
Leprosy, Lepromatous
;
Mycobacterium*
;
Prognosis
6.Subcutaneous Angiolymphoid Hyperplasia of the Inguinal Region and Anteromedial Side of the Proximal Thigh: A case report
Sang Won PARK ; Hong Kun LEE ; Chun Kyun RHA
The Journal of the Korean Orthopaedic Association 1980;15(3):575-578
Subcutaneous angiolymphoid hyperplasia is an uncommon disease characterized by eosinophilia, proliferation of the capillary vessels and lymphoid tissue and infiltration of the inflammatory cell, especially eosinophils. The etiology of the disease are obscure, but probably trauma, lower grade infection, nervous factor & hormonal status etc. The predilection sites are face, ears, scalf & neck, but rarely reported in the extremities. We experienced a case of subcutaneous angiolymphoid hyperplasia of the inguinal region and anteromedial side of the proximal thigh in a 10 year-old man who complained pain and tenderness on the above region. The patient was treated by excision with satisfactory result.
Capillaries
;
Ear
;
Eosinophilia
;
Eosinophils
;
Extremities
;
Humans
;
Hyperplasia
;
Lymphoid Tissue
;
Neck
;
Thigh
7.Anterior Interbody fusion in Fracture and Fracture
Young Kyun WOO ; Myung Sang MOON ; In KIM ; Jang Jung LEE
The Journal of the Korean Orthopaedic Association 1981;16(2):289-299
No abstract available.
Dislocations
;
Spine
8.Total Knee replacement surgery for rheumatoid and osteoarthritic patients (comparative study).
Myung Sang MOON ; Young Kyun WOO ; Kee Haeng LEE
The Journal of the Korean Orthopaedic Association 1991;26(4):1165-1173
No abstract available.
Arthroplasty, Replacement, Knee*
;
Humans
9.The Suction Drainage of Orthopedic Wound
Myung Sang MOON ; Young Kyun WOO ; Hyun Koo LEE
The Journal of the Korean Orthopaedic Association 1984;19(2):233-238
No abstract available in English.
Orthopedics
;
Suction
;
Wounds and Injuries
10.Familiarly Developed Vitamine D Resistant Rickets: Case Report
Young Kyun WOO ; Myung Sang MOON ; Hee Dae LEE
The Journal of the Korean Orthopaedic Association 1984;19(4):723-729
Rickets is a syndrome, characterized pathophysiologically by a failure of normal mineralization of bone and epiphyseal cartilage and clinically by skeletal deformity in growing children. The five principal causes of rickets are vitamin D deficiency, absorptive defects, renal tubular insufficiency, chronic renal insufficiency and hypophosphatasia. In addition to these causes of rickets a defective reabsorption mechanism of the proximal renal tubule is currently believed to be a factor in the development of hypophosphatemic vitamine D resistant rickets. Simple type of hypophosphatemic vitamine D resistant rickets is the most common of all the cases of rickets due to tubular insufficiency. It has a familiar incidence and is a sex-linked dominant disease. There is hypophos-phatemia and an elevated alkaline phosphatase but usually no glomerular disease or uremia. All the clinical manifestations are those of advanced rickets of the ordinary type and usually begin early. We experienced four cases of hypophosphatemic vitamine D resistant rickets which developed in a family.
Alkaline Phosphatase
;
Child
;
Congenital Abnormalities
;
Growth Plate
;
Humans
;
Hypophosphatasia
;
Incidence
;
Kidney Tubules, Proximal
;
Miners
;
Renal Insufficiency, Chronic
;
Rickets
;
Uremia
;
Vitamin D Deficiency
;
Vitamins