摘要:
The invention aims at providing a process for preparing a necrotoxin, an improved toxoid of a necrotoxin produced by a bordetella, and a toxoid mixture comprising the improved toxoid and a toxoid of a necrotoxin produced by a pasteurella. The invention provides a method of partially purifying a necrotoxin by bringing a necrotoxin-containing solution into contact with either a chromatographic carrier gel sulfated by direct sulfation or a chromatographic carrier gel covalently bonded to a sulfated molecule to thereby make the necrotoxin adsorbed on the gel, followed by the elution thereof from the gel. Also provided are a toxoid derived from the necrotoxin produced by a bordetella and partially purified by the above purification method and a toxoid mixture which comprises the above toxoid and a toxoid derived from a necrotoxin produced by a toxigenic pasteurella and is safe for swine and efficacious in preventing atrophic rhinitis.
摘要:
A novel MDCK-derived cell line (B-702) is provided that can be grown in the absence of fetal calf serum and in suspension culture for allowing a tank culture on the production scale and needs no carrier in suspension culture, as well as a process for producing virus for vaccine by using said cell line in a low-cost, highly safe and stable manner.
摘要:
An inhibitor for neovascularization caused by the proliferation of vascular endothelial cells characterized by containing a tissue factor pathway inhibitor (TFPI) as the active ingredient. The TFPI-containing inhibitor can effectively inhibit the neovascularization, so that it is useful as a preventive or remedy for pathological conditions accompanying neovascularization, such as malignant tumor.
摘要:
The polycrystalline thin film (B) is made of a composite oxide of a cubic crystal system which has a pyrochlore type crystalline structure of a composition represented as either AZrO or AHfO (A in the formula represents a rare earth element selected from among Y, Yb, Tm, Er, Ho, Dy, Eu, Gd, Sm, Nd, Pr, Ce and La) formed on the film forming surface of the polycrystalline substrate (A), wherein the grain boundary misalignment angle (K) between the same crystal axes of different crystal grains in the polycrystalline thin film (B) along a plane parallel to the film forming surface of the polycrystalline substrate (A) are controlled within 30°.
摘要:
The present invention provides a W/O/W type oil adjuvant vaccine containing an outer aqueous phase containing 0.5 wt% - 20 wt% of a polyethylene glycol derivative having a molecular weight of 400 - 20,000, and an inner aqueous phase containing a biologically acceptable and effective amount of an antigen. The constitution of the present invention that a polyethylene glycol derivative having a specific molecular weight is contained in the outer aqueous phase enables preparation of a W/O/W type oil adjuvant vaccine showing a high adjuvant effect, reduced side effects such as topical response, superior preparation stability and superior workability to allow a person to give an injection easily due to the lowered viscosity.
摘要:
An anti-feline herpesvirus-1 recombinant antibody which is efficacious in treating, preventing and diagnosing feline herpesvirus-1 (FHV-1) infection, and a gene fragment useful for the preparation of the antibody. A gene fragment coding for the antibody V region bearing an FHV-1 specific avidity of a mouse monoclonal antibody having an excellent activity of neutralizing FHV-1 is obtained by constructing cells which produce the antibody. A chimeric anti-FHV-1 recombinant antibody is prepared from the above gene fragment and another gene fragment coding for a feline antibody C region.
摘要:
The preset invention provides a method for immunizing chickens which comprises inoculating into growing egg a composition comprising either cell-free attenuated viruses of Marek's disease type 1 or cells infected with attenuated viruses of Marek's disease type 1 capable of producing cell-free viruses. The present invention also provides a method for immunizing chickens which comprises inoculating into growing egg a mixed vaccine comprising said composition plus another vaccine from at least one microorganisms selected from the group consisting of viruses other than virus of Marek's disease type 1, bacteria and protozoan.
摘要:
A process for efficiently producing a foreign protein, in particular, a novel foreign protein suitable for the expression of a recombinant antibody with eucaryotic cells by the genetic recombination techniques, wherein a cell containing a foreign gene introduced thereinto can be cultured in a serum-free medium by using as a host cell for foreign gene expression a fused cell obtained by the fusion of mouse myeloma with a lymphoid cell and culturable in a serum-free medium.
摘要:
An applicator for spraying tissue adhesive onto an affected portion comprises: a sterilized gas supply chamber; a sterilized gas supply pipe connected to the sterilized gas supply chamber; two sterilized gas injection nozzles for injecting the sterilized gas supplied to the sterilized gas supply chamber in the substantially same direction; two barrel connecting ports, to which forward end nozzles of the barrels are connected; and a spray head having two liquid pipes whose base end portions are connected to the barrel connecting ports and which pass through the sterilized gas supply chamber and project at the forward end portions thereof from the injection nozzles. In this applicator, coating solutions supplied from syringes of the two barrel connecting ports are injected from the forward end portions of the liquid pipes, the sterilized gases are injected from the two gas nozzles in the substantially same direction, and the two types of liquid injected from the liquid pipes are atomized and applied onto the affected portion in a mixed state.
摘要:
A method for activating prothrombin to thrombin which comprises treating an aqueous solution containing prothrombin with polyethylene glycol in the presence or absence of the calcium salt. The method of the invention enables conversion of prothrombin to thrombin in the absence of thromboplastin and allows for preparation of thrombin on industrially large scale from easily available starting materials.