Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 83 for “"antibody titers"”.
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Effect of vaccination against porcine circovirus type 2 (PCV2) on ejaculate characteristics and the shedding of virus in boar semen
… on ejaculate characteristics and PCV2-specific antibody titers in serum of PCV2-positive boars viremia and viral shedding in semen. Semen and blood samples were collected weekly from week 0 to week 8. After collections at week 0, boars were vaccinated with a commercial vaccine against PCV2 (n = …
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Comparison of current evidence from randomized clinical trials and observational studies for immunogenicity in variable meningococcal C vaccine schedules in children, adolescents, and adults
… increased duration of protection. Seroprotective antibody titers in infants were short-lived after primary schedule vaccinations were completed, and by 12 months of age, only 40-69% of subjects retained defined titers adequate for short term protective immunity. Combined vaccinations with routine …
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The relationship between humoral and local anti-sperm antibody production and infertility in turkey breeder hens
… effect upon hen fertility, or serum anti-sperm antibody titers. No differences in fertility were found between hens showing a positive or negative anti-sperm antibody response. Experiment II demonstrated that only relatively infertile turkey hens had antibody positive cells within the …
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Effect of circovirus vaccination on immune responses, viral load, and growth performance of pigs under field conditions
… circovirus vaccination effects on PCV2 antibody titer, regardless of age and dose administration protocol, pigs vaccinated with a 2-dose circovirus vaccine had increased (P ≤ 0.008) antibody titers compared with non-vaccinates. In a second study, dosing strategy failed (P = 0.31) to …
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Evaluation of Transmissible Gastroenteritis and Porcine Respiratory Coronavirus Immunologic Interaction in Seronegative Pregnant Gilts
… significantly higher TGEV serum neutralizing antibody titers when compared with gilts sensitized to either PRCV or TGEV alone, Anti-TOEV IgG and IgA levels were assayed for in post-farrow milks from all gilt groups. Only IgG was detected which indicated a lack of mucosal priming. The second …
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Alloantigen systems and resistance to Eimeria tenella and Newcastle-B1 in chickens selected for response to sheep erythrocytes
… from lines selected for high (HA) and low (LA) antibody response to sheep red blood cell (SRBC) antigen were Used to study the role of genetic factors involved in resistance to Eimeria tenella and Newcastle disease virus (NDV). Routes of administration were intravenous for SRBC antigen and …
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Development of a Novel Vaccine Adjuvant and Delivery System for Cancer and Influenza
… loaded sIMs generated significantly higher IgG-1 antibody titers compared to the unadjuvanted ova or alum adjuvanted ova, indicating generation of Th2 type of immune response. However, mice immunized with ova encapsulated sIMs were not able to generate strong Th1 immune response (IgG-2a antibody) …
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Investigating the Effect of Antibody-Mediated Feedback on Ongoing Germinal Center Responses
… in the form of long-lasting, high-affinity serum antibody titers, which requires the participation of B cells in the germinal center (GC) response. It is well-established that pre-existing antibodies can influence the outcome of future humoral responses; however, whether antibody from an ongoing …
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In vitro cytotoxic activity of equine lymphocytes on equine herpesvirus-1 infected allogenic fibroblasts
… correlation existed between virus-neutralizing antibody titers and the percent cytotoxicity. Results of the study indicate that <i>in vitro</i> cytotoxic activity of equine lymphocytes against EHV-1 infected allogenic fibroblasts can be measured with a standard 4 hour 51Cr release assay. This …
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Optimization of Burkholderia Glycoconjugate Vaccines: A Reverse Vaccinology Approach
… shown to be immunogenic in mice, generating high antibody titers irrespective of administration route, concentration or adjuvant. Despite the ability to induce a strong humoral immune response, vaccination did not protect animals from lethal B. pseudomallei challenge. To evaluate whether …
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Optimization of Burkholderia Glycoconjugate Vaccines: A Reverse Vaccinology Approach
… shown to be immunogenic in mice, generating high antibody titers irrespective of administration route, concentration or adjuvant. Despite the ability to induce a strong humoral immune response, vaccination did not protect animals from lethal B. pseudomallei challenge. To evaluate whether …
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Analysis and optimization of immune responses elicited by Outer Membrane Vesicles (OMVs)
… to OMVs, sufficient to induce a protein-specific antibody response or the minimum amount of protein to achieve saturating protein-specific antibody titers. We also analysed the influence of physical association of antigens to OMVs in antigen-specific antibody titers, comparing the immunogenicity …
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Transcription factor regulation of T helper subset function
… of germinal center B cells and antigen-specific antibody titers compared to control mice. The increased germinal center B cells and antibody titers were attenuated with blocking CD40L antibody but not with neutralizing IL-21 antibody. These results suggest that PU.1 limits the expression of CD40L …
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Genotype by nutrition interactions for immunoresponsiveness and disease resistance in chickens
… (4) a White Leghorn line selected for low antibody response to sheep erythrocytes, (5) a fast growing White Rock dwarf line, (6) a slow growing White Rock dwarf line, (7) a cross of 3 X 4, and (8) reciprocal crosses of 5 X 6. The nutritional regimens were either alternate-day (AD) and ad …
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Imunnoresponsiveness in Japanese quail and chickens
… and LHLH). Kinetics of primary and secondary antibody response to SRBC antigen was examined in Line C quail (Experiment 1). At most times post-primary inoculation (PPI), antibody titers were highest for antigen concentration 2.5%. The presence of MER antibodies was very low PPI, but increased …
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Alergia alimentar - temporalidade X antigenicidade
… inflammation (E1) led to low levels of systemic antibody titers when compared to the tolerant control group. Conversely, as off initial induction of inflammation, all groups that received OVA to drink presented high systemic antibody titers when compared to the immune control group and are …
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Untersuchungen zum Zeckenbefall und zur Prävalenz von Borrelia burgdorferi sowie Babesia divergens beim Rind im bayerischen Voralpenland
… by immunfluorescence techniques (IFAT), revealed antibody-titers ≥ 1:64 for 45,6 % of the animals. 27 of 31 farms showed prevalences of Borrelia burgdorferi ranging from 20 to 100 %. There were no significant differences of positive cattle between the various areas. However, a significant …
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A statistical mechanics approach to vaccination against HIV
… the same strain of pathogen. The key process in antibody development is a stochastic process known as affinity maturation (AM) which generates strain-specific antibodies upon immunization by one antigen. A highly mutable virus like HIV evades recognition by these strain-specific antibodies via …
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Immune Response in Young Men to the 2014/15 Seasonal Influenza Vaccine
… Serum samples were analyzed for changes in antibody titers, serum leptin, soluble leptin receptors (sLEPR) and C-reactive protein (CRP). No differences in median percent body fat, leptin, sLEPR or CRP were associated with seroconversion rates. Participants with higher physical activity …
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FVIII Immunity : early events and tolerance mechanisms to FVIII
… that the C57BL/6 mice developed higher FVIII antibody titers than the Balb/c mice. Our results suggest that differences in the cytokine immune responses due to FVIII in Balb/c and C57BL/6 mice are responsible for the different FVIII antibody titers in each of these strains. Second, we …
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