BACKGROUND: Intracellular calcium overload is a common final feature of the ischemic-reperfused heart and mediates the genesis of irreversible cell damage. Reactive oxygen medabolites have been known to play and important role as toxic mediators in myocardial injuries resulting from ischemia and reperfusion. In order to investigate the mechanism of intracellular calcium accumulation in the ischemic-reperfused myocardium, the present study observed the possible contribution of the reactive oxygen metabolite to the calcium transport of cardiac mitochondria. METHODS: Mitochondrial were isolated from rabbit hearts. The effects of a reactive oxygen metabolite, H2O2 on calcium uptake and release, redox states of endogenous pyridine nucleotides and glutathiones of mitochondria respiring with succinate were observed. Calcium uptake and release were monitored by dual-wave length spectrophotometer using a calcium indicator, arsenaze III. Contents and redox states of pyridine nucleotides and glutathiones were measured by enzymatic methods using spectrofluorometer and HPLC. RESULTS: Hydrogen peroxide(10-500microM) promoted calcium release dose-dependently from CA++-preloaded mitochondria, but did not affect the mitochondrial calcium uptake. The H2O2-induced calcium release was accompanied by simultaneous oxidation of the pyridine nucleotides and decrease in the content of the reduced form of glutathione(GSH). When mitochondria were treated with BCNU(N,N=bis(2-chloroethyl)-N-nitrosourea) to inhibit glutathione reductase and so as to reduce the GSH content, there were no increase in calcium release from the mitochondria. These results may indicate that H2O2 increases the permeability of cardiac mitochondrial membrane to calcium in association with the changes in redox state of endogenous pyridine nucleotides, but not with that of glutathiones. CONCLUSION: It is suggested that the reactive oxygen metabolites induce the release of calcium from mitochondria by altering the redox state of pyridine nucleotides, and it may partly be involved in the elevation of cytosolic calcium concentration in the ischemic-reperfused myocardial cells.
Calcium* ; Chromatography, High Pressure Liquid ; Cytosol ; Glutathione Reductase ; Heart ; Hydrogen ; Ischemia ; Mitochondria* ; Mitochondrial Membranes ; Myocardium ; Nucleotides ; Oxidation-Reduction ; Oxygen* ; Permeability ; Reperfusion ; Succinic Acid

A retrospective morphological study was conducted on 1677 lymph nodes which were removed surgically under the diagnosis of gastric carcinoma, breast carcinoma, colonic carcinoma, chronic gastric ulcer, and superficial lymph nodes nuder the diagnosis of reactive follicular hyperplasia at Chosun University Hospital during a period of 5 years from 1980 to 1984. The hematoxylin and eosin stained sections were examined to evaluate for any vascular changes. In selected cases further levels were prepared from the paraffin blocks for Gomori's reticulin stain. The vascular abnormalities were divided into 3 groups, such as hemangiomatoid, pan-nodal vasodilatation and miscellaneous types. The miscellaneous type included the proliferation of smooth muscle which encircled numerous small hilar arteries and veins. The results obtained were as follows: 1) The hemangiomatoid lesions were localized lesions which appeared to be associated with local malignancy, but infrequent in incidence. 2) A more frequent vascular abnormality was pan-nodal vasodilatation, which tend to affect many nodes in a single group and is relatively associated with chronic gastric ulcer. 3) Miscellaneous lesion was nonspecific and appeared both local malignancy and chronic inflammation. 4) All three vascular reactions were somewhat more frequent in female than male.
Female ; Humans ; Incidence

In orper to measure the levels of high density lipoprotein cholesterol in psoriasis, 60 psoriatic patients and 30 healthy subjects were included in this study. Lopez-Virells methos was applied for measuring the serum level of high density lipoprotein cholesterol. The results were obtained as follows. The level of serurn HDL cholesterol was 58. 39+17. 40 mg/dl in psoratcs and 50.3+0.31 mg/dl in healthy subjects and 50. 43+ 10. 31 mg/dl in healthy subjects. No significant differences were noted between psoriatics & healthy subjects. 2. The level of serum HDL cholesterol was 56. 40+19. 10 mg/dl in male group of psoriatics and 60. 00+15.47 mg/dl in female group of psoriatics and 48.3+9. 50 mg/dl in healthy male group and 52.60 -10.59 mg/dl in healthy female group. No significant differences of serum HDL cholesteol levels were noted in both sexes.3. The mean value of serum HDL cholesterol by age groups of 10, 20, 30, 40, and 50 years old with psoriasis were 50. 70 mg/dl, 61. 97 mg/dl, 57. 44 mg/dl, 49. 11 mg/dl and 70. 36 mg/dl, respectively and those of healthy groups were 57. 25 mg/ dl, 45. 17 rng/dl, 50. 97 rng/dl, 48. 07 mg/dl and 46. 98 mg/dl, respectively.
Cholesterol, HDL* ; Female ; Humans ; Male ; Middle Aged ; Psoriasis*

Herein we wish to report a case of pernicious anemia and myasthenia gravis occurred after treatment with removal of an invasive thymoma and irradiation. Nine years ago, the male patient was visited due to chest pain, and was found a mediastinal mass at his age of 55. He received open thoracotomy and was found stage III invasive thymoma which infiltrated phrenic nerve and pericardium. After removal of thymoma, he received 4,500cGy of radiation. Two years later, he complained of left eyelid drooping and diagnosed as myasthenia gravis with tensilon test. His myasthenic eye symptom was controled with Mestinon. After 9 years from thymectomy, he complained of dizziness and dyspnea on exertion. Bone marrow smear revealed megaloblastic anemia and serum vitamin B12 level was 42.24pg/ml. Gastric juice analysis revealed achlorhydria with positive anti-intrinsic factor antibody. 6 weeks after treatment with parenteral vitamin B12, hematologic findings were normalized.
Achlorhydria ; Anemia, Megaloblastic ; Anemia, Pernicious* ; Bone Marrow ; Chest Pain ; Dizziness ; Dyspnea ; Edrophonium ; Eyelids ; Gastric Juice ; Humans ; Male ; Myasthenia Gravis* ; Pericardium ; Phrenic Nerve ; Pyridostigmine Bromide ; Thoracotomy ; Thymectomy* ; Thymoma* ; Vitamin B 12

Herein, we report a case of multiple myeloma with multiple plasmacytomas of thyroid, lung, lymph nodes and adrenal gland, who presented as upper airway and esophageal obstruction with vocal cord palsy. An 80-year-old women complained of dysphagia, hoarseness and anterior neck mass. Ultrasonography of the neck showed huge inhomogeneous solid mass involving left thyroid lobe and isthmus with several lymphadenopathy along the both upper deep cervical chain. Chest CT scanning revealed 4x3 cm sized, low density mass in posterobasal segment of the right lower lobe with both lower paratracheal lymphadenopathy, and abdominal CT scanning revealed 4.5x4.5 cm sized round low density mass in left adrenal gland. Serum and urine electrophoresis was normal and immunofixation of serum and urine was negative. Bone marrow smear and a bone scintigram revealed no abnormality, but iliac bone marrow biopsy revealed infiltration of abnormal plasma cells. Histologic and immunohistochemical examinations of the thyroid and lung mass revealed monoclonal proliferation of plasma cells of kappa light chain. After local irradiation of the neck with parenteral dexamethasone injection, anterior neck mass was much diminished in size, but 2 weeks later she had a pneumonia with fatal outcome.
Adrenal Glands ; Aged, 80 and over ; Biopsy ; Bone Marrow ; Deglutition Disorders ; Dexamethasone ; Electrophoresis ; Fatal Outcome ; Female ; Hoarseness ; Humans ; Lung ; Lymph Nodes ; Lymphatic Diseases ; Multiple Myeloma* ; Neck ; Plasma Cells ; Plasmacytoma* ; Pneumonia ; Thyroid Gland ; Tomography, X-Ray Computed ; Ultrasonography ; Vocal Cord Paralysis

Granular cell tumor(GCT) has been identified in all organ systems, most often in the oral cavity and subcutaneous tissue. GCT of the esophagus has been considered rare. However, this neoplasm is being recognized with increased frequency since the use of fiberoptic endoscopy has become widespread. We report 5 cases of granular cell tumors involving the esophagus, all of which were incidentally found. Four additional cases of GCT which appeared in the Korean literature were reviewed.
Endoscopy ; Esophagus* ; Granular Cell Tumor* ; Mouth ; Subcutaneous Tissue

Mucasal melanoma is rare and it is one of the diseases of the worst prgnosis. We report a case of metastatic mucosal melanoma of the lip in 50-yearold male with a peanut sized, round, black colored macule on the lower lip, which was metaetasized to the brain and lung for 8 years. Histologically, typical findings of malignant melanoma showed. Chest P-A showing nodular high densities on the right upper and lower lobes and left lower lobe. Brain C,T. scan revealed round nodular densities on the right and left frontal and parietal lobes. In spite of chemical and radiation therapy, he was dead.
Brain* ; Humans ; Lip* ; Lung* ; Male ; Melanoma* ; Parietal Lobe ; Thorax

We present a case of childhood systemic lupus erythematosus(SLE) with renal disease in a 10-year-old girl with multiple, scattered, erythema multiforme-like eruptions on the face, trunk, forearms and lower legs. Serologic abnormalities included hypocomplementemia, high ANA & anti DNA titers, and LE cell test was positive. The histologic finding of the lesion showed leukocytoclastic vasculitis and direct immunofluorescent test revealed linear deposit of IgM at the dermoepiderrnal junction. Electron microscopy showed glomerular subepithelial depasition of eletron dense material in the kidney.
Child ; DNA ; Erythema* ; Female ; Forearm ; Humans ; Immunoglobulin M ; Kidney ; Leg ; Lupus Erythematosus, Systemic* ; Microscopy, Electron ; Neutrophils ; Vasculitis

No abstract available.
Lymphoma* ; Trachea*

The FOLFOX-4 regimen as first-line treatment in patients with advanced gastric cancer has not evidence of category 1 for prolongation of survival in patients with advanced gastric cancer. Therefore, the use is preferred in the second line. But, especially in elderly patients, FOLFOX regimen was active and well tolerated with lower toxicities. Further phase III study is warranted to evaluate the evidence for prolongation of survival in elderly patients or combination therapy with target agents in advanced gastric cancer.
Aged ; Antineoplastic Combined Chemotherapy Protocols ; Drug Therapy, Combination ; Fluorouracil ; Humans ; Leucovorin ; Organoplatinum Compounds ; Stomach Neoplasms