No abstract available.

No abstract available.

Many factors exert an influence on enzyme activity and thus on the rate of reactions that they catalyse. The most important of these factors are pH, temperature, substrate concentration, and the concentration of some inhibitors present. A solution of the enzyme diastase, which breaks down molecules of the polysaccharide starch to the disaccharide maltose by hydrolysis, was provided. Activity of these enzyme was measured by the rate at which starch was removed from the reaction mixture. These experiments were designed to study this reaction rate under varying conditions and the following results were obtained. 1. The range of optimum pH for this enzyme at room temperature was 4.0-7.0 and the optimum pH was 5.0. 2. The range of optimum temperatures for this enzyme at pH 7.0 was 30-50 degrees C and the optimum temperature was 40 degrees C. 3. The relationship between the enzyme activity and substrate concentration could be expressed by the Michaelis-Menten equation. The limiting velocity of these enzyme at room temperature and pH 7.0 was 415 microgram starch removed/ml of reaction mixture/min and Km, Michaelis constant, was 343 microgram/ml. 4. Inhibitors NaCl and HgCl2 blocked this enzyme activity completely at 1% and 0.01% respectively.
Amylases* ; Hydrogen-Ion Concentration ; Hydrolysis ; Maltose ; Mercuric Chloride ; Starch ; Water*

No abstract available.
Bone Morphogenetic Proteins*

The authors retrospectively reviewed the high resolution computed tomographic scans of 19 patients who had hematogenous or lymphangitic metastatic lung lesions. In all patients, the histologic diagnosis for primary cancers and the radiographic manifestations of pulmonary metastasis were established. Certain characteristic findings of metastatic lung tumors on HRCT scans were evident: uneven thickening of bronchovascular bundles, multiple small nodules, thickening of interlobular septum, and the presence of polygonal lines. The nodules are more predominent in hematogenous metastasis. The prevalent site of nodules is cortical portion of lung.
Diagnosis ; Humans ; Lung ; Neoplasm Metastasis* ; Retrospective Studies

No abstract available.
Thanatophoric Dysplasia*

No abstract available.
Plasma Exchange* ; Plasma* ; Seoul*

No abstract available.
Plasma Exchange* ; Plasma* ; Seoul*

Cystic teratoma on the floor of the mouth is infrequent disease and known as congenital origin. Teratoma has no sex distribution. Treatrnent of the cystic teratoma is completely surgical excision and recurrence is rare. The authors have experienced a case of cystic teratoma on the floor of the mouth in neonate. We reported this case with review of literatures.
Humans ; Infant, Newborn* ; Mouth* ; Recurrence ; Sex Distribution ; Teratoma*

Twenty four hyperlipidemic patients, consist of 13 males and 11 females, were administration a new hypolipidemic agents, Pantethine, and blood lipid level were checked sereally for 16 weeks. The following results are obtained. 1. The serum high density lipoprotein-cholesterol are markedly increased by 11.8%. 2. The serum cholesterol level are reduced mildly by 4.8% & it seems to be insignificant. 3. The serum triglyceride level are moderately reduced by 10.7%. 4. In 11 female patients, pantethine are more than effect on male patients. 5. Pantethine has been well tolerated in most patients. With a consideration of remakable safety, it is promising that pantethine are effective in reducing cholesterol, Triglyceride and increasing high density lipoprotein-cholesterol level.
Cholesterol ; Female ; Humans ; Hypolipidemic Agents ; Male ; Triglycerides