The objective of the present study was to identify the characteristics of phospholipase C (PLC) isozymes purified from bovine brain and to investigate their interrelationship with G protein. The purified PLC isozymes β, γ and δ were obtained and the characteristics of PLC activity on various concentrations of free Ca²⁺ were observed. The activity of PLC was increased with increasing Ca²⁺ concentration and the activity PLC δ was increased higher in the presence of phosphatidyl choline (PC) than in the absence of PC. For vesicle formation as the structure of cell membrane, cholic acid and deoxycholic acid as detergent on phosphatidylinositol bisphosphate (PIP₂) substrate containing PC were used, and then the activity of PLC isozymes were increased with increasing concentration of cholate, from 0.2% to 1% and were increased slightly in deoxycholate. In the PIP₂ containing phospholipid and glycolipid as brain extract, the activity of PLC isozymes were checked in 0.2-1% cholic acid. The activities of PLC isozymes were continuously increased up to 1% cholic acid. The quantitation of PLC isozymes from several bovine organs by radioimmunoassay was made. Brain was the most sufficient organ in terms of amount of PLC β and δ. A large amount of PLC δ was existed in adrenal gland. The binding capacity of GTPrS and G protein was observed and other observations of the binding effect of GTPrS-G protein and PLC monoclonal Ab-Protein A from tissue homogenate with PLC were made. From the observation the binding capacity was revealed the range of 0.11-1.49%. The effects of each type of G protein on the percent activity of purified PLC isozymes were observed. From the observation, activities of isozymes were increased in Goa & Gmix, and the activities of PLC β and δ were increased in Gβγ and Gia. Activities of PLC β and γ were decreased in Gta but PLC δ increased.
Adrenal Glands ; Brain* ; Cell Membrane ; Cholates ; Cholic Acid ; Choline ; Deoxycholic Acid ; Detergents ; GTP-Binding Proteins* ; Isoenzymes ; Phosphatidylinositols ; Phospholipases* ; Radioimmunoassay ; Type C Phospholipases*

No abstract available.
Gastrectomy*

Myopathy in primary aldosteronism in relatively rare disease in Korea. A 42-year-old woman with hypokalemic periodic paralysis, proximal muscle weakness and hypertension was found to have myopathy associated with adenoma in the right adrenal gland. She showed marked elevation of muscle enzymes and myopathic pattern in EMG.
Adenoma ; Adrenal Glands ; Adult ; Female ; Humans ; Hyperaldosteronism ; Hypertension ; Hypokalemic Periodic Paralysis ; Korea ; Muscle Weakness ; Muscular Diseases* ; Rare Diseases

We evaluated the performance of activities of daily living by using Barthel ADL index and the factors affecting the quality of life were also analyzed in 82 survivors who suffered from single cerebral infarction in MCA territory and followed for more tham 3 months. The results were as follows: 1. Among the patients, 56(68.3%) patients regained functional indepeadency.but they were not necessarily normal or socially independent. 2. They improved markedly in first 4 weeks after onset of the stroke. 3. Functional recovery in the left hemiplegic patients was better than the right, but there was no difference in functional recovery related to sex and etiologic factors. 4. There was no correlation between age and ADL score 5. The major determinants for long term quality of life were the initial neurologic signs and the size of infarcted area demonstrated by Computed Tomography.
Activities of Daily Living* ; Cerebral Infarction ; Humans ; Neurologic Manifestations ; Quality of Life ; Stroke* ; Survivors ; Tromethamine

We report the results of field operation of TELEACE system between Kyung-Pook National University Hospital and Ul-Jin Goon Health Care Medical Center from December, 1990 to September, 1991, which had been operated as a kind of Integrated Services Digital Nework projects by KOREA TELECOMMUNICATION Inc. Ul-Jin Goon Health Care Medical Center transmitted 414 plain radiographs to our hospital in speed of 9600BPS. Each image was composed of 1024X1024 pixelsX8 bits/pixel. In our hospital, the image files were displayed on high resolution monitor (1280×1024 pixets). Text files of image interpretations were transmitted to the health care medical center. The two radiologists who had interpreted the transmitted images, went to the health care medical center and read radiographic film with blind test method. We obtained the following results: false negative rate of 6.3%, false postitve rate of 2.4%, mean sensitivity of 81.4%, mean specificity of 96.3%, and mean accuracy of 91.3%. In predictive value of 0.05, there was no significant difference between results of these two types of radiographs. In conclusion, TELEACE system was valuable to the clinicians isolated from services of radiologists.
Delivery of Health Care ; Korea ; Methods ; Sensitivity and Specificity ; Telecommunications ; X-Ray Film

A 27 years old female patient who had some features of idiopathic hypoparathryoid manifestation such as hypocalcemica, hyperphosphatemia. Chronic tetany, no evidence of osteomalacia, rickets and renal insufficiency, also was found to have certain characteristic skeletal and developmental abnormalities :rounded face, short neck, thick-set stocky body habitus, brachymetatarsia and mental retardation, which are attributable to Albright's Hereditary Osteodystrophy. On the basis of a circulating immunoreative Parathormone level, this case could be considered as idiopathic hypoparathyrodism rather than psuedohypoparathyroidism, despite of Albright's Hereditary Osteodystrophy because the patient's circulating parathormone level is normal range in C-terminal radioimmunoassay system. Presumably, the suggested explanation about the patients normal range of immunoreative parathormone is that the hypoparathyroid state is not a deficiency of circulating parathormone but an ineffectiveness of acitve parathormone because of a defect in conversion of secreted proparatbyroid hormone into an active form as proposed by Nusynowitz et al.(l973) The similar concentrations in immunoreactive parathormone levels of patient's family in same radioimmunoassay systems support this hypothesis. We concluded this case as idiopathic hypoparathyroidism with Albright's Hereditary Osteodystrophy.
Adult ; Female ; Humans ; Hyperphosphatemia ; Hypoparathyroidism* ; Intellectual Disability ; Neck ; Osteomalacia ; Parathyroid Hormone ; Radioimmunoassay ; Reference Values ; Renal Insufficiency ; Rickets ; Tetany

Transient ischemic attacks or embolic strokes caused by the cardiac myxoma are very rare in its freguency. To detect cardiac myxoma, as a source of cerebral embolism originating from the heart, has a great significance because of the occurrence and recurrence of the possible stroke can be prevented by surgical procedure. We present a patient who showed typical clinical symptoms and signs of the left atrial myxoma which was subsequently diagnosed by 2-dimensional real time echocardiography and confirmed by sugery. Following the successful removal of the left atrial myxoma, now, the patient is in stable neurological condition.
Echocardiography ; Heart ; Humans ; Intracranial Embolism* ; Ischemic Attack, Transient ; Myxoma* ; Recurrence ; Stroke

Chiari type I malformation(CM-I) is a congenital disorder recognized by caudal displacement of the cerebellar tonsils through the foramen magnum and into the cervical canal. Though bony anomalies associated with CM including platybasia, small posterior fossa and occipitalization, are relatively frequent, but the incidence rate associated with agenesis of posterior arch of atlas is very low. We report our experience of surgical treatment for patient who had CM-I with unilateral agenesis of posterior arch of atlas.
Arnold-Chiari Malformation ; Congenital, Hereditary, and Neonatal Diseases and Abnormalities ; Foramen Magnum ; Humans ; Incidence ; Palatine Tonsil ; Platybasia

OBJECTIVE: The purpose of this study is to evaluate the clinicopathologic characteristics of the torsion of the ovarian tumor in postmenopausal women. METHODS: We reviewed the medical records of 20 postmenopausal patients with a postoperative diagnosis of torsion of the ovarian tumor in Department of Obstetrics and Gynecology, Hanyang University Hospital from January 1989 to December 1998. RESULTS: The postmenopausal patients with torsion of the ovarian tumor constitute 20/94 (21.3%) of all adnexal torsion patients encountered during this period. The mean (+/-SD) age of the 20 patients was 63.5+/-9.0 years, with a range of 52-90 years. The mean time since menopause was 16.5+/-10.3 years, with a range of 1-39 years. The mean parity was 5.4+/-2.0 (range of 3-10). Lower abdominal pain (65%) was the most frequently presenting symptom, palpable mass(20%) or diagnosed mass(15%) being the second. But, in 20% of cases there was no lower abdominal pain. The torsion occurred at the right side in 11cases (55%) and at the left side in 9 cases. The most frequent degree of torsion was those cases that was rotated twice (720 degrees). The neoplasms undergoing torsion ranged in diameter between 5cm and 30cm and the most prevalent size was 6 to 10 cm (8 cases). Most of the patients (17cases) were treated by total abdominal hysterectomy and bilateral salpingo-oophorectomy. The tumors that produce torsion varied histologically and the most common type was cystic teratoma (in 5 cases), simple cyst(in 3 cases), serous cystadenoma(in 2 cases), mucinous cystadenoma(in 2 cases). CONCLUSIONS: In our study, ovarian tumor torsion occurring in postmenopausal patients constituted approximately 20% of all torsion patients, therefore adnexal torsion should be considered when a postmenopausal woman presents with lower abdominal pain. When torsion is diagnosed, total abdominal hysterectomy and bilateral salpingo-oophorectomy is the usual treatment for postmenopausal patients. Histologically, in more than 90% of cases, the tumors that produce torsion were benign. If cancer is evident, more extensive surgery is required.
Abdominal Pain ; Diagnosis ; Female ; Gynecology ; Humans ; Hysterectomy ; Medical Records ; Menopause ; Mucins ; Obstetrics ; Parity ; Teratoma

Among 7,500 patients whom we have performed gastrofiberoscopy from July 1979 to June 1,982, 226 cases of stomach cancer were diagnosed. The frequency was 3. 0%. The ratio of male to female was 2: 1, the peak incidence, 69 cases(30.5%) was in 5th decade. 1) The frequency of stomach cancer among the age were 0. 5% in 1st decade, 0.4% in 2nd decade, 1.2% in 3rd decade, 2.5% in 4th decade, 5.9% in 5th decade, 12.6% in 6th decade 16.8% in 7th decade. (continue...)
Female ; Humans ; Incidence ; Male ; Stomach Neoplasms* ; Stomach*