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Protective Immunization In Mice Against Group B Streptococci Using Encapsulated C5a Peptidase, Donna Santillan, M. E. Andracki, S. K. Hunter Jun 2013

Protective Immunization In Mice Against Group B Streptococci Using Encapsulated C5a Peptidase, Donna Santillan, M. E. Andracki, S. K. Hunter

Donna A. Santillan

OBJECTIVE: The purpose of the study was to test whether C5a peptidase encapsulated within a biodegradable polymer can act as a vaccine and elicit an immune response to prevent group B streptococci (GBS) infection in mice and provide protection to pups. STUDY DESIGN: C5a peptidase was encapsulated in semipermeable microspheres of poly(lactide-co-glycolide). Female ICR mice were immunized with encapsulated C5a peptidase, free C5a peptidase, or empty microparticles. Booster doses were given at days 21 and 42. Antibody responses were measured by enzyme-linked immunosorbent assay. Challenge with GBS type III was performed 4 days after the final booster in the vaginal …


The Effects Of Ru 486 On Immune Function And Steroid-Induced Immunosuppression In Vitro, Bradley Van Voorhis, D. Anderson, J. Hill Jun 2013

The Effects Of Ru 486 On Immune Function And Steroid-Induced Immunosuppression In Vitro, Bradley Van Voorhis, D. Anderson, J. Hill

Bradley J Van Voorhis

The effect of RU 486 [17 beta-hydroxy-11 beta-(4-dimethylamino-phenol)17 alpha-(prop-1-ynyl)estra- 4,9diene-3-one] on [3H]thymidine incorporation into Concanavalin-A-stimulated human peripheral blood mononuclear cells and its influence on the suppressive effects of cortisol and progesterone were investigated. Cortisol suppressed lymphocyte thymidine incorporation at 10(-5), 10(-6), and 10(-7) M (17.6%, 20%, and 38% of control, respectively; P less than 0.01). Cortisol-induced suppression was reversed when low concentrations of RU 486 (10(-7) and 10(-6) M) were added. RU 486 at 10(-5) M further suppressed lymphocyte thymidine incorporation when added to cultures with cortisol. Progesterone significantly inhibited lymphocyte thymidine incorporation at 10(-5) M (8.2% of control; P …


Does Rubella Immunity Predict Measles Immunity? A Serosurvey Of Pregnant Women, Colleen Kennedy, B. Burns, K. Ault May 2013

Does Rubella Immunity Predict Measles Immunity? A Serosurvey Of Pregnant Women, Colleen Kennedy, B. Burns, K. Ault

Colleen Kennedy Stockdale

BACKGROUND: This study was undertaken to determine whether rubella immunity infers measles immunity in pregnant women. METHODS: Stored serum samples were obtained from the Iowa State Hygienic Laboratory for evaluation of rubella and measles immunities with IgG enzyme-linked immunosorbent assay. RESULTS: Nine hundred serum samples were obtained for testing. The average age of the women at the time of antepartum serum collection was 28 (range, 14 to 44) years. Measles and rubella immunity were 88% and 98%, respectively; there was no effect of immunity status by age identified. Eighty eight percent of those with rubella immunity were also measles immune. …


Protective Immunization In Mice Against Group B Streptococci Using Encapsulated C5a Peptidase, Donna Santillan, M. Andracki, Stephen Hunter May 2013

Protective Immunization In Mice Against Group B Streptococci Using Encapsulated C5a Peptidase, Donna Santillan, M. Andracki, Stephen Hunter

Stephen K. Hunter

OBJECTIVE: The purpose of the study was to test whether C5a peptidase encapsulated within a biodegradable polymer can act as a vaccine and elicit an immune response to prevent group B streptococci (GBS) infection in mice and provide protection to pups. STUDY DESIGN: C5a peptidase was encapsulated in semipermeable microspheres of poly(lactide-co-glycolide). Female ICR mice were immunized with encapsulated C5a peptidase, free C5a peptidase, or empty microparticles. Booster doses were given at days 21 and 42. Antibody responses were measured by enzyme-linked immunosorbent assay. Challenge with GBS type III was performed 4 days after the final booster in the vaginal …


Inflammatory And Immune System Correlates Of Rape, M.W. Groer, Sandra Thomas, G.W. Evans, S. Helton Jan 2006

Inflammatory And Immune System Correlates Of Rape, M.W. Groer, Sandra Thomas, G.W. Evans, S. Helton

Faculty Publications and Other Works -- Nursing

The purpose of this study was to evaluate the feasibility of measuring stress hormones and immunity following rape. The long-term goal is to evaluate the predictive value of stress-immune-inflammatory responses to later health outcomes. Fifteen women reporting rape were compared with 16 control participants. Serum stress hormones, proinflammatory cytokines, acute phase proteins, functional assays, and lymphocyte subsets were measured in blood samples. Women reporting rape had higher cytotoxic cells, lower B lymphocyte counts, higher proinflammatory biomarkers, and decreased lymphocyte proliferation compared to the control group. This finding suggests that rape produces activation of the innate immunity and suppression of some …


Inflammatory And Immune System Correlates Of Rape, M.W. Groer, Sandra Thomas, G.W. Evans, S. Helton Jan 2006

Inflammatory And Immune System Correlates Of Rape, M.W. Groer, Sandra Thomas, G.W. Evans, S. Helton

Sandra Thomas

The purpose of this study was to evaluate the feasibility of measuring stress hormones and immunity following rape. The long-term goal is to evaluate the predictive value of stress-immune-inflammatory responses to later health outcomes. Fifteen women reporting rape were compared with 16 control participants. Serum stress hormones, proinflammatory cytokines, acute phase proteins, functional assays, and lymphocyte subsets were measured in blood samples. Women reporting rape had higher cytotoxic cells, lower B lymphocyte counts, higher proinflammatory biomarkers, and decreased lymphocyte proliferation compared to the control group. This finding suggests that rape produces activation of the innate immunity and suppression of some …