(n.) Any sac or saclike cavity; especially, one of the synovial sacs, or small spaces, often lined with synovial membrane, interposed between tendons and bony prominences.
Example Sentences:
(1) The bursa of Fabricius, thymus glands and spleen of chickens were also shown to express mRNA coding for ANP.
(2) The B.2+ cells represent the second major cell population of the bursa.
(3) An operation for chronic prepatellar bursitis is described in which only the posterior wall of the bursa is excised, thus preserving, undamaged, healthy and normally sensitive skin.
(4) Bacterial cultures were also made of condemned bursas taken at processing.
(5) It's not just a word, it's an ornament [for women]," Arinç told a crowd celebrating the end of Ramadan in the city of Bursa in an address that decried "moral corruption" in Turkey.
(6) A radiological survey of 1204 members of the population of Bursa revealed a high prevalence of spina bifida occulta (16.3%).
(7) Bursas from some of these chicks were examined for infectious bursal agent-specific fluorescence four days after vaccination and bursas from others were examined for histological lesions of infectious bursal disease 21 days after vaccination.
(8) The patients all responded well to local drainage and excision of the bursa.
(9) The past history of the bursa will be remembered for its contribution to present and future research and the present and future will be promising if the experiences of the past are not forgotten.
(10) The MI response was however depressed in both age groups, and the thymus and bursa were involuted.
(11) We have previously shown that progesterone receptor (PR) is expressed in the mesothelium of the chick oviduct and ovary and in the smooth muscle cells of the oviduct and the bursa of Fabricius.
(12) The avian bursa is easily accessible experimentally, and in the chicken, it has been the subject of extensive research.
(13) Coccidial life-cytle stages were detected in the bursa of Fabricius of broiler chickens inoculated with Eimeria tenella, whether or not the chickens had previously been infected with infectious bursal disease virus (IBDV).
(14) Infectious bursal disease virus alone induced a persistent depression of Ia-expressing cells in the bursa and the spleen and no measurable change in the bone marrow lymphocyte subpopulations.
(15) The trochanteric bursa is anatomically quite susceptible to traumatic injury.
(16) Furthermore, the spleen is reached by B-determined stem cells as early as the bursa, but these stem cells seem not to proliferate in the former to any considerable extent until hatching.
(17) The proportion of rats that maintained a bursa-free ovary did not change over the 5-week period (80-89%).
(18) Essential bursal microenvironmental elements, however, are altered or lost following TP treatment, while bursae from Cy-injected birds can be reconstituted with donor precursors.
(19) (f) Fluid is not detected in subacromial-subdeltoid bursae.
(20) The lining cells were flat fibrocytes one cell thick in the smaller bursas, and round stratified cells in the larger bursas.
Bursal
Definition:
(a.) Of or pertaining to a bursa or to bursae.
Example Sentences:
(1) The nucleotide sequence of genome segment A cDNA of the STC strain of infectious bursal disease virus (IBDV) was determined and compared with sequences of the homologous genome segment of the 002-73 strain of IBDV and the Jasper strain of infectious pancreatic necrosis virus (IPNV).
(2) Histopathologically, infectious bursal disease was characterized by bursal and thymic necrosis, aplastic anemia, acute hepatitis with fatty change, and systemic inflammatory response.
(3) Bursas from some of these chicks were examined for infectious bursal agent-specific fluorescence four days after vaccination and bursas from others were examined for histological lesions of infectious bursal disease 21 days after vaccination.
(4) Most colonisation of bursal follicles probably occurs prior to day 13.
(5) Using neutralizing monoclonal antibodies, three categories of escape mutants were selected from a stock of wild-type infectious bursal disease virus (IBDV).
(6) Consistent with persistent embryonic viral infection and altered bursal function, only IgM-producing cells were detected in the spleens of 7-day-old experimental birds.
(7) Direct injection of antigen into bursal tissue of young chickens followed by subsequent intravenous immunization markedly stimulated agglutinin production against Brucella abortus.
(8) Coccidial life-cytle stages were detected in the bursa of Fabricius of broiler chickens inoculated with Eimeria tenella, whether or not the chickens had previously been infected with infectious bursal disease virus (IBDV).
(9) Infectious bursal disease virus alone induced a persistent depression of Ia-expressing cells in the bursa and the spleen and no measurable change in the bone marrow lymphocyte subpopulations.
(10) The antigen-specific recovery was observed by simultaneous administration of sterile antigens into the bursal lumen at the time of BDL.
(11) Diversification within these tumor cells seems to occur by gene conversion events comparable with those observed in bursal B cells.
(12) Essential bursal microenvironmental elements, however, are altered or lost following TP treatment, while bursae from Cy-injected birds can be reconstituted with donor precursors.
(13) It was concluded that virus susceptibility is most likely determined at the bursal stem cell level of differentiation, possibly by a process of allelic exclusion at the retroviral receptor locus.
(14) Two independent non-overlapping epitopes could be demonstrated on the structural protein VP3 of infectious bursal disease virus by non-neutralizing monoclonal antibodies produced against serotypes I and II.
(15) When injected subcutaneously it does not reduce bursal weight and the histological pattern does not change, while primary and secondary immune responses are significantly lowered.
(16) Quails developed necrotizing tracheitis, proliferative and necrotizing bronchitis and pneumonia; multifocal necrotizing hepatitis; necrotizing splenitis, with or without hyperplasia of splenic mononuclear phagocytes; bursal lymphoid necrosis; and bursal atrophy.
(17) Maturation of bursal stem cells in an allogeneic environment was studied.
(18) Specific antibodies were investigated in serums of chicks vaccinated with live vaccine and revaccinated with inactivated vaccine against the infectious bursal disease virus, using three methods.
(19) The developmental and phenotypic characteristics of the bursal lymphocytes and chicken B cell lines that express RAG-2 mRNA demonstrate that selective RAG-2 expression occurs specifically in B cells undergoing Ig diversification by gene conversion.
(20) From these conclusions the etiology of the dysgammaglobulinemia in UM-B19 chickens is hypothesized to be primarily due to delayed bursal development: Immature BG cells are eliminated by environmental antigens during the neonatal period in a process similar to tolerance induction.