No abstract available.

The origin of the stromal cell of cerebellar hemangioblastoma has long been studied electron microscopically and immunohistochemically. The results and theories about the stromal cell origin are variable and plentiful. However, the exact origin of the stromal cell remains controversial. The present study is aimed to elucidate the nature of the stromal cell of cerebellar hemangioblastoma. Ten cases of hemangioblastoma in Severance Hospital were used for immunohistochemical analysis of the stromal cell. The immunohistochemical staining of GFAP, S-100 protein, NSE, alpha-l-antichymottypsin, cytokeratin, CD 68, factor VIII related antigen, and synaptophysin were performed. The results were as follows; GFAP and S-100 protein were stained mainly but weakly in bellar capillary spindle cell and cellular process. NSE was stained mainly in foam cells, and 6 cases among them revealed strong reaction. ct-l-antichymotrypsin was stained in a few foam cells of 5 cases. Cytokeratin, CD 68, factor VIII related antigen, and synaptophysin showed negative reaction. Based on these results, it is considered that the origin of the stromal cell is histiocytic or neurogenic rather than glial. The weak positivity of GFAP and S-100 protein may support the neurogeriic origin but ct-l-antichymotrypsin positivity does not support the possibility. The positivity of GAP and S-100 protein supports the phagocytic action of histiocytic cell and suggests histiocytic origin rather than neurogenic.

No abstract available.
Wound Healing* ; Wounds and Injuries*

BACKGROUND: The acute effect, of ethanol (EOH) include lowered blood pressure through peripheral vasodilation and decreased circulating blood volume. This study was aimed at examing the effects of EOH on the hemodynamic response to up and down head tilts. METHODS: Ten 21 to 23 year old male adults served as subjects. Each subject participated in both control and EOH experiments. In the EOH experiment, 3 mls of 25% EOH per liter of total body water was administered orally, 35 min were allowed for the blood EOH level to reach maximum before the tilt protocol was initiated. The tilt protocol consisted of 5 stages, each stage was 3-min in duration : supine (0 degrees)-head down tilt (HDT, 15 degrees)-supine (0 degrees)-head up tilt (HUT, 25 degrees)-supine (0 degrees). Hemodynamic parameters were measured with an impedance cardiograph (NCCOM3-R7, BoMed) with two electrodes placed around the neck and two around the thorax. Blood pressure (BP) was measured with an automatic sphygmomanometer (DATEX). Data was collected during every second half-minute throughout the duration of the protocol. RESULTS: In the control, HDT produced an increase in the end-diastolic index (EDI), the stroke index (SI), the cardiac index (CI), and the peak flow index (PFI) ; there were no significant changes in heart rate (HR), the systemic vascular resistance index (SVRI), and BP. In contrast, HUT resulted in a decrease in EDI, SI, EF, CI, and PFI and an increase in HR, SVRI, and BP ; the latter changes sugges a sympathetic overactivation. In the EOH experiment, the basal EDI, SI, and systolic BP were lower and HR was higher than in control. HDT and HUT caused similar changes as in control experiments. CONCLUSIONS: There results indicate that EOH cause volume depletion to result in reduced central blood volume and compensatory tachycardia. These EOH-induced changes were not altered by 15 degreeshead-down and 25 degreeshead-up tilts.
Adult ; Blood Pressure ; Blood Volume ; Body Water ; Cardiography, Impedance ; Eating* ; Electric Impedance ; Electrodes ; Ethanol* ; Gravitation ; Head ; Heart Rate ; Hemodynamics* ; Humans ; Male ; Neck ; Sphygmomanometers ; Stroke ; Tachycardia ; Thorax ; Vascular Resistance ; Vasodilation ; Young Adult

No abstract available.
Hepatitis B* ; Hepatitis* ; Humans ; Infant, Newborn* ; Vaccination*

Exercise induced asthma (EIA) is defined as acute, reversible, usually self-limiting airway obstruction which develop after strenous exercise in patients with asthma. EIA is a bigger problem in children than adults due to more active and smaller airways which obstruct more easily when bronchospasm develops. The exercise elicited many change in pulmonary function of asthmatic children. These change could be measured by measurements of PEFR, FEV1, FVC, or SRaw. The propose of this study is to determine the changes and sensitivity of different pulmonary function test in asthmatic children. 37 asthmatic children exercised on free running and pulmonary function tests were performed before and every 5 minutes during 15 minutes after exercise. The results were as follows. 1) In 37 asthmatic children, EIA developed in 23 children (62%) and did not developed in 14 children (38%). The difference in sex, height, weight, total eosinophil count, serum IgF and test between EIA and Non-EIA were not significant (P>0.05). 2) In EIA group, %PEFR was changed from 109.56% to 83.56%, But in Non-EIA group, %PEFR was not changed before and after exercise loading test. 3) In EIA group, %FEV1 was changed from 90.91% to 74.87%. But in Non-EIA group, %FEV1 was not changed before and after exercise loading test. 4) In EIA group, %FVC changed from 91.83% to 75.35%. But in Non-EIA group, %FVC was not change before and after exercise loading test. 5) There was significant difference in pre-exercise specific airway resistance between EIA (6.7+/-1.7) and normal children (5.8+/-2.2)(p<0.05). In EIA group, %SRaw was changed from 115.7% to 161.2%. But in Non-EIA group, %SRaw was not changed before and after exercise loading test. 6) During the post-exercise observation period, increasement of SRaw was greater than changes in any other pulmonary function test. SRaw is the most sensitive test for the ditection of exercise induced airway obstruction is asthmatic children.
Adult ; Airway Obstruction ; Airway Resistance* ; Asthma ; Asthma, Exercise-Induced ; Bronchial Spasm ; Child* ; Eosinophils ; Humans ; Peak Expiratory Flow Rate ; Respiratory Function Tests ; Running

No abstract available.
Hydronephrosis*

Trabeculectomy, as a surgical intervention in the treatment of glaucoma, has become most popular. The most common cause of filtration failure is obstruction of aqueous outflow due to bleb fibrosis. Adjunctive intraoperative mitomycin-C has been reported to improve the success of filtration surgery in eyes of high risk for failure. But its use increases the rate of complications after filtering surgery: especially postoperative hypotony, wound leakage, and scleral necrosis. We have experienced two patients whose scleral flaps were necrotized after trabeculectomy with mitomycin-C in uncomplicated glaucoma. We report successful results in revision of filtering bleb by using Gore-Tex as a patch graft.
Blister* ; Fibrosis ; Filtering Surgery ; Filtration ; Glaucoma ; Humans ; Mitomycin* ; Necrosis ; Polytetrafluoroethylene* ; Trabeculectomy* ; Transplants ; Wounds and Injuries

No abstract available.
Mucocutaneous Lymph Node Syndrome

Epstein's syndrome is a rare disease whish is characterized by the association of thrombocytopenia, macrothrombocytopathia, nephritis and deafness. We experienced a case of Epstein's syndrome in a 12 years old male patient who was presented with a life long history of bleeding, usually as epistaxis, bilateral sensorineural deafness and hematuria with proteinuria starting in late childhood. Hematologic studies showed thrombocytopenia with giant platelets and anemia. A bone marrow aspirate revealed the megakaryocytes to be adequate in number and many giant size platelets. Platelet do not respond to addition of A and epinephrine; collagen and ristocetin induced agglutination response is decreased. It is difficult to be certain the association of thrombocytopenia with giant platelets, nephritis and deafness constitutes a new hereditary disease with a distinct pathogenesis or if it is an expansion of the well recognized Alport's syndrome of hereditary nephritis deafness. We report a case of Epstein's syndrome syndrome with brief review of related literatures.
Agglutination ; Anemia ; Blood Platelets ; Bone Marrow ; Child ; Collagen ; Deafness ; Epinephrine ; Epistaxis ; Genetic Diseases, Inborn ; Hematuria ; Hemorrhage ; Humans ; Male ; Megakaryocytes ; Nephritis ; Nephritis, Hereditary ; Proteinuria ; Rare Diseases ; Ristocetin ; Thrombocytopenia