| isolation of 4/91 type of infectious bronchitis virus as a new variant in japan and efficacy of vaccination against 4/91 type field isolate. | among field isolates of infectious bronchitis virus (ibv) from recent outbreaks, some isolates that were classified into the 4/91 genotype, by analysis of the s1 gene, have been confirmed to be a new variant in japan. to elucidate the characteristics of these isolates, pathogenicity in chicks and the efficacy of vaccines against this new variant were examined. severe respiratory symptoms were observed in 4-day-old specific pathogen free chicks inoculated with a 4/91 genotype isolate, either jp/w ... | 2008 | 19166052 |
| genetic analysis of the s1 gene of 4/91 type infectious bronchitis virus isolated in japan. | s1 gene sequences for infectious bronchitis virus (ibv) strains of the 4/91 genotype (commonly called 793b) isolated from field outbreaks in japan were analyzed to ascertain the relationship to 4/91 vaccine strain. three field isolates (jp/wakayama/2003, jp/iwate/2005 and jp/saitama/2006) from flocks not immunized with a 4/91 type live ibv vaccine and one isolate (jp/wakayama-2/2004) from a flock immunized with a 4/91 type live vaccine were examined. the amino acid identities among jp/wakayama/2 ... | 2009 | 19498283 |
| [preparation of liposome using egg yolk]. | in this study, 162 students in the 6 year pharmacy program at the school of pharmacy, iwate medical university were asked to prepare liposomal preparations using chicken egg yolk and to evaluate their properties with the aim of developing novel liposomes. high-purity lecithins are generally used for preparing liposomes but they are expensive. on the other hand, egg yolk has various components, including lecithin and cholesterol, which are important components for the formation of liposomes, so i ... | 2011 | 21963980 |