摘要:
A floor coating application device with a rigid body having attached thereto a removable applicator and a removable weight system. The rigid body having a planar surface with radial edges to facilitate the uniform application of a coating material to a surface. The removable applicator being a material suitable for uniformly spreading a coating material without flaws or shedding and attached to the rigid body in such a manner as to minimize the wicking of coating material through the applicator. The removable weight system capable of providing a consistent force against the rigid body to improve the uniformity of coating thicknesses. The floor coating application device is used to spread coating material with a handle connected to the rigid body or a mechanical coating device.
摘要:
Recombinant proteins have been developed for the immunization of animals against cryptosporidiosis. The Proteins are effective for the immunization of a variety of animals against Cryptosporidium parvum, particularly for the production of hyperimmune colostrum that may be used to confer passive immunity against the parasite. Isolated DNA sequences which encode these proteins have also been developed. The DNA sequences may be inserted into recombinant DNA molecules such as cloning vectors or expression vectors for the transformation of cells and the production of the proteins.
摘要:
Disclosed are DnA sequences which code for antigenic proteins, methods for identifying such DNA sequences, and antigens coded for by such DNA sequences.The first step of the method is to provide a multiplicity of DNA sequences. These sequences are then inserted into DNA expression vectors to form recombinant expression vectors. The expression vectors are inserted into suitable hosts to form transformants which express the DNA sequences. The transformants are then contacted with antibodies directed against Eimeria antigens to identify transformants containing DNA sequences which code for Eimeria antigens. These antigens are then produced from the DNA sequences identified as coding for the antigens. The antigens so produced are contacted with white blood cells which effect a cell-mediated immune response, which white blood cells are sensitized to an antigenic Eimeria protein, to thereby identify DNA sequences which code for antigens that induce a cell-mediated immune response to avian coccidiosis.The DNA sequences of the present invention comprise cloned genes or fragments thereof that code on expression for an antigenic protein that activates white blood cells which effect a cell-mediated immune response, which white blood cells are sensitized to an antigenic Eimeria protein.
摘要:
Neospora caninum is the causal agent of bovine neosporosis which results in high levels of abortion. The protective efficacy of two Neospora antigens: Neospora cyclophilin (NcCyP) and NcSRS2 was evaluated. Mice vaccinated with recombinant (r) NcCyP, rNcSRS2, and the combination rNcCyP plus rNcSRS2, formulated with adjuvant ImmuMax-SR® and CpG were challenge-infected 3 weeks following the booster immunization and necropsied 3 weeks after the challenge infection. Mice vaccinated with rNcCyP, rNcSRS2, or the combination of rNcCyP and rNcSRS2 responded with high levels of NcCyP- or NcSRS2- specific antibodies. Mice which received vaccines formulated with either rNcCyP or the combination rNcCyP and rNcSRS2 had a higher (p
摘要:
Neospora caninum is the causal agent of bovine neosporosis which results in high levels of abortion. The present study determined the protective efficacy of two Neospora antigens—Neospora cyclophilin (NcCyP) and NcSRS2. The ability of native NcCyP to upregulate mouse IFNγ was also confirmed in this study. Recombinant NcCyP or NcSRS2 were tested either alone or in combination and formulated with adjuvant ImmuMax-SR and CpG. Female BALB/c mice (n=15) of 10-12 weeks of age were immunized s.c. twice in a 2-week interval with vaccines containing either NcCyP alone, NcSRS2 alone, NcCyP plus NcSRS2, or non-recombinant bacterial antigen (NR) in 2 separate trials. All mice were challenge-infected 3 weeks following the booster immunization and necropsied 3 weeks after the challenge infection. Brain and serum were collected and Nc-specific DNA sequence in brain tissue and antibodies in serum were analyzed by PCR or ELISA/Western blotting. Results showed that mice vaccinated with rNcCyP, rNcSRS2, or both rNcCyP and rNcSRS2 responded with high levels of NcCyP or NcSRS2 specific antibodies. Overall, mice received vaccines formulated with either rNcCyP or rNcCyP and rNcSRS2 had a higher (p
摘要:
Recombinant proteins have been developed for the immunization of animals against cryptosporidiosis. The proteins are effective for the immunization of a variety of animals against Cryptosporidium parvum, particularly for the production of hyperimmune colostrum that may be used to confer passive immunity against the parasite. Isolated DNA sequences which encode these proteins have also been developed. The DNA sequences may be inserted into recombinant DNA molecules such as cloning vectors or expression vectors for the transformation of cells and the production of the proteins.
摘要:
Recombinant proteins have been developed for the immunization of animals against cryptosporidiosis. The proteins are effective for the immunization of a variety of animals against Cryptosporidium parvum, particularly for the production of hyperimmune colostrum that may be used to confer passive immunity against the parasite. Isolated DNA sequences which encode these proteins have also been developed. The DNA sequences may be inserted into recombinant DNA molecules such as cloning vectors or expression vectors for the transformation of cells and the production of the proteins.
摘要:
Antigens for the detection of antibodies to Neospora parasites for the diagnosis of neosporosis have been identified. Recombinant antigens may be produced by expression of DNA sequences derived from Neospora caninum. Both antigens are capable of detecting antibody responses in animals experimentally inoculated with N. caninum but show no evidence of cross-reactivity with serum from animals inoculated with closely related parasites such as Toxoplasma gondii or Sarcocystis species.