Cytochrome P-450 (CP-450) is one of the three components of the liver microsomal enzyme system which hydroxylates fatty acids, hydrocarbons and a variety of drugs and other foreign compounds. Female Balb/c mice were immunized with purified polychlorinated biphenyl (PCB) – induced CP-450 LMII. The spleen cells derived from immunized mice were fused with SP2 myeloma cells using polyethylene glycol (PEG 3500). The hybrid cells were selected by hypoxanthine-aminopterin-thymidine (HAT) medium and the culture fluid were screened by enzyme-linked immunosorbent assay to CP450 LMII. The hybrid cells(×107) were inoculated into intraperitoneal cavity of Balb/c mice for the purpose of production of ascetic fluids. Monoclonal antibody (Mab) was purified from ascitic fluid by DEAE cellulose ion exchange chromatography and I¹²⁵ labeled Mab was also confirmed by autoradiography and SDS-polyacrylamide gel electrophoresis (MW:55,000 and 110,000)
Animals ; Ascitic Fluid ; Autoradiography ; Chromatography, Ion Exchange ; Cytochrome P-450 Enzyme System* ; Cytochromes* ; DEAE-Cellulose ; Electrophoresis ; Enzyme-Linked Immunosorbent Assay ; Fatty Acids ; Female ; Humans ; Hybrid Cells ; Hydrocarbons ; Liver* ; Mice ; Polyethylene Glycols ; Rats* ; Spleen

Band 3, the predominant 95,000 dalton anion transport protein, is the major intrinsic glycoprotein of the human erythrocyte membrane. This anion carrier exists as a dimer and binds the cytoskeletons such as spectrin, ankyrin and actin. And the liposomes are vesicular structures which form spontaneously upon hydration of phospholipids. These artificial lipid vesicles have been investigated as model of the biological membranes and as a mean of improving the delivery of nucleic acids, drugs, proteins and biological substances to specific target tissues and cells. In this study, we were purified Band 3 from the human erythrocyte membrane (ghost) was prepared by hemolysis of intact human erythrocyte with weak alkali-hypotonic solution. Band 6 was removed from ghost by extracting with solution of an ionic strength of 0.15. Band 3 and Band 4 were solubilized selectively by extracting Band 6-depleted ghosts with Triton X-100 under nondenaturing conditions. Band 3 was then purified from Triton X-100 extract treated with p-chloromercuribenzoate by sucrose density gradient ultracentrifugation. This purified Band 3 was incorporated into liposomes prepared by reverse-phase evaporation. Phosphatidyl L-serine and cholesterol (1:1 molar ratio) were dissolved in chloroform and the chloroform was removed by rotator evaporation under reduced pressure. Band 3 solution without Triton X-100 was introduced into a mixture of lipids and diethylether. Diethylether was subsequently removed by evaporation. This purified Band 3 and its incorporation into liposomes were confirmed by sodium dodecyl sulfate-polyacrylamide gel electrophoresis.
Actins ; Ankyrins ; Chloroform ; Cholesterol ; Cytoskeleton ; Electrophoresis ; Erythrocyte Membrane* ; Erythrocytes* ; Glycoproteins ; Hemolysis ; Humans* ; Liposomes* ; Membranes ; Molar ; Nucleic Acids ; Octoxynol ; Osmolar Concentration ; Phospholipids ; Serine ; Sodium ; Spectrin ; Sucrose ; Ultracentrifugation

No abstract available.
Animals ; Rats* ; Wounds and Injuries*

No abstract available.
Digoxigenin* ; DNA* ; Hepatitis B virus* ; Hepatitis B* ; Hepatitis*

We assessed the degree of mydriasis induced by 1% tropicamide and 2.5% phenylephrine compared with that induced by 1% tropicamide and 10% phenylephrine in 100 patients with diabetes. Additionally we studied the difference of pupillary dilatation according to duration of dibetes, severity of retinopathy, and performance of photocoagulation. Maximum dilated pupillary diameter was 7.25+/-1.27mm in 2.5% phenylephrine group and 7.32+/-1.36mm in 10% phenylephrine group, respectively the difference in pupillary dilatation between two groups was not statistically significant. We advise the use of the 2.5% phenylephrine in patients with diabetes, who already exhibit a higher prevalence of vascular disease and autonomic nerve system dysfunction because 2.5% phenylephrine may produce a lower incidence of side effects than 10% concentration and have the same effect of pupil dilatation as 10% phenylephrine.
Autonomic Pathways ; Dilatation* ; Humans ; Incidence ; Light Coagulation ; Mydriasis ; Phenylephrine* ; Prevalence ; Pupil ; Tropicamide ; Vascular Diseases

No abstract available.
Hepatitis B virus* ; Hepatitis B* ; Hepatitis*

No abstract available.
Hepatitis B virus* ; Hepatitis B* ; Hepatitis*

The t(3;21) (q26;q22) is associated with chronic myelogenous leukemia in blast crisis, leukemia evolving from therapy-related myelodysplasia, and with leukemia following other hematopoietic proliferative diseases. The t(3;21) is rare secondary aberration in blast crisis of Philadelphia(Ph)-positive chronic myeloid leukemia, which may be restricted to patients entering myeloid blast crisis. We report here in one case of chronic myeloid leukemia in blast crisis which reveals both t(9;22) (q34;q11), and t(3;21) (q26 ;q22). A 62-year-old male was diagnosed as chronic myeloid leukemia 5 years ago, received hydroxyurea therapy, and admitted because of gingival bleeding and fever. On examination, splenomegaly and leukocytosis with proliferated blasts(91%) in peripheral blood were noted. Bone marrow aspirate showed hypercellularity with severe blast proliferation(92.5%) which revealed all negative in peroxidase and PAS stain. Cytogenetic study of bone marrow cells showed the karyotype 46, XY, t(3;21) (q26;q22), t(9;22) (q34;q11), which might be suspected as myeloid blast crisis. Above finding was confirmed by the result of immunophenotyping(CD13 43.6%, CD34 68.2%, HLA-DR 91.6%). He received intensive chemotherapy, but still sustained proliferation of blasts was noted . The follow up cytogenetic study was as follows: 46, XY, 4(3;21) (q26:22), t(9;22) (q34;q11)/46, XY, t(3;21)(q26;q22), del(8) (q22), t(9:22) (q34,q11)/46, XY (16/3/1). He died soon from severe pancytopenia and sepsis.
Blast Crisis* ; Bone Marrow ; Bone Marrow Cells ; Cytogenetics ; Drug Therapy ; Fever ; Follow-Up Studies ; Hemorrhage ; HLA-DR Antigens ; Humans ; Hydroxyurea ; Karyotype ; Leukemia ; Leukemia, Myelogenous, Chronic, BCR-ABL Positive* ; Leukocytosis ; Male ; Middle Aged ; Pancytopenia ; Peroxidase ; Sepsis ; Splenomegaly

Premacular hemorrhage (preretinal,subhyaloid, or sub-internal limiting membrane hemorrhage)impairs central vision abruptly and occurs in various underlying diseases. In cases of persistent hemorrhage, permanent impairment of vision may occur. Proposed therapeutic options for premacular hemorrhage consist of conservative treatment, laser photodisruption and early vitrectomy. Laser photodisruption may be performed in cases of persistent or slow-clearing hemorrhage, in patients with occupational need for prompt restoration of binocular vision or in patients with poor vision in their fellow eyes. The authors report 4 patients with premacular hemorrhage who were treated with Nd: YAG laser photodisruption with the review of the literatures.
Hemorrhage* ; Humans ; Lasers, Solid-State* ; Membranes ; Vision, Binocular ; Vitrectomy

Trichorhinophalangeal syndiome, a rare genetic disease, is characterzed by the triad of slow growing, brittle hair with early loss, a pear-shaped nose with bulbous tip and long philtrum, and coneshaped phalangeal epiphyses wiith resultant shortening and. deformity of hands and feet. A 24-year-old female visited our department for the evaluation of lalopecia. She had had sparse, thin, and brittle hair since birth. She also complained of short fingers ar d a pear-shaped nose with bulbous tip. The X-ray findings of her hands and feet showed cone-shaped epiphyses with shortening of the phalangeal bones. There was no family history of hair, nasal, or palnkoplantar phalangeal abnormality. Chromosomal study did not reveel any abnormal finding. Shortened phalangeal bones of her index and middle fingers were slightly improved by lengthening procedure with iIlizarov apparatus.
Congenital Abnormalities ; Epiphyses ; Female ; Fingers ; Foot ; Hair ; Hand ; Humans ; Lip ; Nose ; Parturition ; Young Adult