PURPOSE: Angiogenesis is a critical determinant of tumor growth and the development of metastasis. Angiostatin and endostatin have been used in a variety of in vitro and in vivo animal models as effective inhibitors of angiogenesis. However, human angiostatin and endostatin have not been tested against an intact human tissue target in vitro to determine its ability to achieve an antiangiogenic response. We performed our study to determine if human angiostatin and endostatin would inhibit the development of an angiogenic response (initiation) and to determine the subsequent growth (angiogenic index) of human vessels in a dose-dependent manner with a human placental vein angiogenesis model (HPVAM). METHODS: We used full thickness human placental vein discs cultured in three-dimensional fibrin-thrombin clots with an overlay of liquid media. Human angiostatin and endostatin were evaluated in concentrations ranging from 10-9 M to 10-4 M. A positive control containing 20% fetal bovine serum and a negative control using heparin and hydrocortisone 21-phosphate were also tested. RESULTS: Human angiostatin did not inhibit the initiation of an angiogenic response and the subsequent development of the angiogenic response (angiogenic index) at any concentration. Human endostatin significantly inhibited the initiation rate of an angiogenic response at a concentration of 10-4 M (p<0.001) and the subsequent development of an angiogenic response (angiogenic index) from a concentrations of 10-5 M to 10-4 M (p<0.001, p<0.001, respectively). CONCLUSION: We conclude that a very high concentration of human endostatin can inhibit the angiogenic response in human vascular tissue and that human angiostatin will not inhibit angiogenesis of normal human blood vessels in vitroThese results suggest that human endostatin has a more powerful antiangiogenic effect than human angiostatin, but we need further investigations of human angiostatin against an intact human tissue target.
Angiostatins* ; Blood Vessels ; Endostatins* ; Heparin ; Humans* ; Hydrocortisone ; Models, Animal ; Neoplasm Metastasis ; Veins

A total of 322 patients with endobronchial tuberculosis (8.1%) out of 3,982 subjects who had a flexible fiberoptic bronchoscopic examination at the Department of Pulmonary Medicine of Hanyang University Hospital between the beginning of March 1982 and the end of Apr11 1996 were included in this study. The peak incidence occurred in the second decade, and the male to female was 1 : 3.0. The barking cough with variable amounts of sputum was the most common chief complaint in 56.9% of the 313 patients. Other complaints included dyspnea, chest pain, fever, hemoptysis, and generalized weakness. Localized wheeze was heard over the chest in 16.9% of the 313 patients. Infiltration/consolidation was the most common roentgenographic finding of the chest in 64.2%. Bronchoscopically, hypertrophy with luminal narrowing was the most common findings in 32.3% of the 322 patients and left main bronchus was the most frequently involved in 24.0%. Using fiberoptic bronchoscopy allows not only substantial meaningful assessment of endobronchial tuberculosis but also makes a differential diagnosis of lung cancer in older patients. We need further evaluations of standard bronchoscopic classification of endobronchial tuberculosis, diagnostic accuracy of endobronchial tuberculosis by PCR, a large prospective study of effects of corticosteroids in endobronchial tuberculosis patients, and appropriate treatment of atelectasis by endobronchial tuberculosis.
Adrenal Cortex Hormones ; Bronchi ; Bronchoscopy ; Chest Pain ; Classification ; Cough ; Diagnosis, Differential ; Dyspnea ; Female ; Fever ; Hemoptysis ; Humans ; Hypertrophy ; Incidence ; Lung Neoplasms ; Male ; Phenobarbital ; Polymerase Chain Reaction ; Pulmonary Atelectasis ; Pulmonary Medicine ; Sputum ; Thorax ; Tuberculosis*

The relationship between urea-splitting organism in the urine and urinary stone is well known. We have checked bacteriologic study of 28 urinary stones after surgical removal of stone and brushing, and following results were obtained. 1. Positive stone culture were 6 cases (21.4%). 2. Organisms were Pseudomonas, Klebsiella, Proteus, Serratia, Staphylococcus and Enterococcus. 3. Antibiotics sensitivity of 6 cases of infected stones were Klebsiella, proteus: 2) Amikacin, Pseudomonas: 1) Ampicilline, Serratia: 1) Cefamezine, Staphylococcus: 2) Kanamycin, Gentamycin, Enterococcus: 3) Penicilline. 1) Sensitive 2) Moderately sensitive 3) Relatively resistant. 4. The most prevalent age group of infected stone was between 40-49. 5. Ureter was the most favorable site of infected stone and multiple stone were 2 cases. 6. Positive urine culture were detected in all of 6 cases of infected stone. 7. In 4 cases of infected stone, organisms of stone culture and urine culture were identical. They were Pseudomonas, Enterococcus, Proteus, Staphylococcus. 8. In 2 cases of infected stone, organisms of stone culture and urine culture were not identical. They were Serratia, Klebsiella in stone culture and proteus, E. coli in urine culture respectively.
Amikacin ; Ampicillin ; Anti-Bacterial Agents ; Cefazolin ; Enterococcus ; Gentamicins ; Humans ; Kanamycin ; Klebsiella ; Penicillins ; Proteus ; Pseudomonas ; Serratia ; Staphylococcus ; Ureter ; Urinary Calculi*

No abstract available.
Schizophrenia*

No abstract available.
Adult* ; Humans ; Respiratory Distress Syndrome, Adult*

Optic ataxia is characterized by an impaired visual control of the direction of arm reaching to a visual target, accompanied by defective hand orientation and grip formation. In humans, optic ataxia is associated with lesions of the superior parietal lobule, which also affect visually guided saccades and other forms of eye-hand coordination. A 67-year-old woman presented with sudden, unilateral, direct optic ataxia in the right homonymous half field and saccadic abnormalities which consisted of prolonged latency, undershoot dysmetria, and decreased velocity. Brain MRI showed a left parieto-occipital watershed infarction. It is suggested that lesions of the superior parietal lobule and the adjacent parietal eye field are responsible for optic ataxia and saccadic abnormalities, respectively.
Aged ; Arm ; Ataxia* ; Brain ; Cerebellar Ataxia ; Female ; Hand ; Hand Strength ; Humans ; Infarction* ; Magnetic Resonance Imaging ; Rabeprazole ; Saccades

Plasma renin activity (PRA) and aldosterone were measured to evaluate various status of clinical conditions in normal controls and patients with essential hypertension. Fourteen controls and 45 essential hypertensive patients for PRA, and 10 controls and 28 patients with essential hypertension for plasma aldosterone were studied. The results obtained are summarizing as follows. 1. Mean value of PRA of normal subjects was 2.9+/-1.4ng/ml/hr at rest, and 5.9+/-2.3ng/ml/hr by double stimulation, respectively, the latter elevated up to twice the former. 2. Mean value of PRA in the patients with essential hypertension was 3.37+/-3.0ng/ml/hr at rest, and 5.99+/-4.9ng/ml/hr by double stimulation. The latter have increased to 1.8 times the former. 3. The patients with low PRA observed in 33.3%, the normal in 42.2%, and the high in 22.5%, at rest. After double stimulation, the low group was observed in 22.2%, the normal in 60.0%, and the high in 17.8%. 4. Mean age of the patietns with low PRA was 57.2+/-2.6 years. Though it was higher than those of normal and high PRA groups(52.0+/-10.1 years), statistical significances were observed (0.05 Aldosterone* ; Blood Pressure ; Cholesterol ; Electrocardiography ; Furosemide ; Humans ; Hypertension* ; Hypertrophy, Left Ventricular ; Motor Activity ; Plasma* ; Potassium ; Proteinuria ; Renin* ; Sodium ; Triglycerides

No abstract available.
Actinomycosis* ; Lung*

Systemic lupus erythematosus is an autoimmune disease characterized by multisystem involvement and various laboratory findings. A retrospective study was made of the medical records of 59 patients with SLE at Severance hospital, Yonsei University College of Medicine, for the analysis of clinical and laboratory findings during the years 1970 through 198I. The results were compared with those of previous serial studies in Korea and western countries. The results obtained are as follows: l. In 59 patients with SLE, 7 patients were men and 52 patients were women (M: F=l: 7.4). Their age at onset of the dsiease ranged mainly in the 3rd and 4th decades. 2. The major clinical manifestations were skin eruptions (81%), fever(73%), renal involvements(66%), pulrnonary(66%) and cardiac(61%) abnomalities. 3. The variety of skin and mucus membrane manifestations seen included butterfly rash of face(53%), maculopapular eruption (34%), purpura(22%), and mucosal ulcer (19%) in that order. 4. Mucosal ulcers and alopecia were correlated closely with exacerbations of disease activity. Patients with Raynauds phenomenon were not likely to have severe organ involvement. 5. Compared with Western series, renal manifestation, anemia and thrombocytopenia were more frequent, and lymphadenopathy, Raynauds phenomenon and alopecia were less frequent. 6. The ANA test showed a, high sensitivity(96%) and a high titer. Compared with the patients showing a speckled pattern(30%), those showing a homogenous pattern(60%) had more severe organ involvement and poorer prognosis. 7. The anti-nDNA antibody test had a high sensitivity(81%), and indicated. severe renal involvement and poorer prognosis. Also, the titer correlated well with disease activity. 8. The disease was associated with autoimmune hemolytic anemia, Buergers disease, thyroid diseases, myelofibrcsis and chilblain. 9. A bimodal rnortality pattern was seen with infection being the major cause of early death, and renal failure and cardiopulmonary abnormalities in late death.
Alopecia ; Anemia ; Anemia, Hemolytic, Autoimmune ; Autoimmune Diseases ; Butterflies ; Chilblains ; Exanthema ; Female ; Humans ; Korea ; Lupus Erythematosus, Systemic* ; Lymphatic Diseases ; Male ; Medical Records ; Membranes ; Mucus ; Prognosis ; Renal Insufficiency ; Retrospective Studies ; Skin ; Thromboangiitis Obliterans ; Thrombocytopenia ; Thyroid Diseases ; Ulcer

No abstract available.
Humans ; Statistics as Topic*