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Articles 1 - 10 of 10
Full-Text Articles in Veterinary Medicine
Novel Oncolytic Herpesviruses For Breast Cancer Treatment, Anna Israyelyan
Novel Oncolytic Herpesviruses For Breast Cancer Treatment, Anna Israyelyan
LSU Doctoral Dissertations
Oncolytic herpes simplex virus type-1 (HSV-1) has shown great potential as an effective agent for cancer therapy ¨C oncolytic virotherapy. To enhance oncolytic capabilities of previously reported agents, new oncolytic and fusogenic HSV-1 OncSyn and OncdSyn viruses were constructed based on wild type HSV-1 (F) strain. To provide for safety and tumor selectivity, the viruses carried a large deletion including one of the two ¦Ã134.5 genes. The ¦Ã134.5 gene, a major neurovirulence factor, was replaced by a gene cassette constitutively expressing the red fluorescent protein. Homologous recombination was utilized to transfer the fusogenic gBsyn3 mutation to the viral genome to …
Molecular Determinants Of Kaposi's Sarcoma-Associated Herpesvirus Tumorigenicity, Haixia Kong
Molecular Determinants Of Kaposi's Sarcoma-Associated Herpesvirus Tumorigenicity, Haixia Kong
LSU Master's Theses
A conditional silencing system using anti-gB siRNAs was devised to investigate the structure and function of the KSHV gB. Transient co-transfection of plasmids constitutively expressing gB and anti-gB siRNAs in 293 cells substantially inhibited gB mRNA levels and protein production. Similarly, transient expression of siRNAs into the basal cavity-based lymphoma cells (BCBL-1) caused substantial reduction of gB transcription and protein synthesis. TaqMan real-time PCR and infectivity assays showed that gB was essential for virion egress and infectivity. Transfection of a codon-optimized gB not recognized by the anti-gB siRNAs, efficiently rescued virion egress and infectivity in BCBL-1 cells in the presence …
Phylogenetics And New Approaches To Vaccine Development For West Nile, Arun Venkatesh Iyer
Phylogenetics And New Approaches To Vaccine Development For West Nile, Arun Venkatesh Iyer
LSU Doctoral Dissertations
West Nile virus (WNV) was first isolated in 1937 from a febrile Ugandan woman. WNV now has a worldwide distribution from Australia and India in the east to Europe and the United States in the west. The first human cases of WNV in the United States were detected in New York in 1999. The North American isolates were also found to be highly neuroinvasive and neurovirulent and in many cases leading to mortality or permanent CNS sequelae among humans. WNV was first isolated in Louisiana in 2001. The genome of this virus named LSU-AR01was sequenced and a detailed genetic analysis …
The Relationship Between Pro-Inflammatory Cytokines, Prostaglandins, And Fetal Hypothalamic-Pituitary-Adrenal Axis Activation In Mares With Infective Pre-Term Delivery, Sara K. Lyle
LSU Doctoral Dissertations
Ascending placentitis is a significant cause of abortions, stillbirths, and perinatal loss in horses. A technique for laparoscopic-guided catheterization of the allantoic space was developed and utilized in an experimental model of streptococcal infective pre-term delivery in pony mares. Mares received either 1 x 107 CFU live S. zooepidemicus (n=3), 5.1 x 108 CFU live S. zooepidemicus (n=1), 1 x 107 heat-killed S. zooepidemicus (n=3), 1 mL sterile PBS (n=3). Sham control mares did not receive a transcervical inoculation (n=3). One mare not instrumented with an allantoic catheter received 5.1 x 108 CFU live S. zooepidemicus. Mares with spontaneous abortion …
Randomized Controlled Trial Evaluating Adeno-Momp And Momp Dna Vaccines Against Chlamydophila Psittaci Challenge In Cockatiels (Nymphicus Hollandicus), David Sanchez-Migallon Guzman
Randomized Controlled Trial Evaluating Adeno-Momp And Momp Dna Vaccines Against Chlamydophila Psittaci Challenge In Cockatiels (Nymphicus Hollandicus), David Sanchez-Migallon Guzman
LSU Master's Theses
Chlamydophila psittaci causes severe disease in birds and humans, and important economical losses in the avian companion and poultry industry. Vaccines are the most cost-effective measure to control and help prevent infectious diseases, but to date there is no commercial vaccine available. A randomized clinical trial was conducted to assess the efficacy of two recombinant DNA vaccines against C. psittaci in Cockatiels (Nymphicus hollandicus). The first recombinant DNA vaccine has a gene encoding MOMP and the immunostimulant chitosan (MOMP DNA vaccine). The second recombinant DNA vaccine, contained the gene encoding MOMP that was vectored by a replication defective human adenovirus …
Phenotypic Characterization Of Canine Cranial Cruciate Ligament Associated Synoviocytes, Sunil C. Vasanjee
Phenotypic Characterization Of Canine Cranial Cruciate Ligament Associated Synoviocytes, Sunil C. Vasanjee
LSU Master's Theses
Identification of synoviocytes surrounding the canine cranial cruciate ligament (CrCL) has not been investigated. Objectives 1) Develop and validate a technique to identify and quantify normal canine CrCL associated synoviocytes. 2) Compare synoviocyte phenotype proportions surrounding normal and abnormal canine CrCLs Design In vitro experimental Animals Cranial cruciate ligaments from 4 intact female and 6 intact adult male mixed-breed dogs (objective 1) and from 8 adult female hound dogs (objective 2) Methods Objective 1) Normal CrCLs - CD18 and HSP25 epitopes were colocalized using immunohistochemistry. Sagittal sections were quantified in the proximal, middle, and distal aspects of each section. Western …
The Zinc Induction Of Heme Oxygenase-1 Gene Promoter In Mouse Hepa Cells, Salim M. Alawneh
The Zinc Induction Of Heme Oxygenase-1 Gene Promoter In Mouse Hepa Cells, Salim M. Alawneh
LSU Doctoral Dissertations
Heme oxygenase-1 (HO-1) catalyzes the initial and rate-limiting reaction in heme catabolism (yielding equimolar quantities of iron, carbon monoxide, and biliverdin), which is further metabolized to bilirubin by biliverdin reductase. HO-1, an important enzyme with antioxidant and cytoprotective properties, functions against oxidative stress generated in response to heme and to various stress stimuli, such as zinc. The cytoprotective function of HO-1 is dependent on both the activities of the reaction products and on the inducibility of the heme oxygenase gene (hmox-1), which is regulated primarily at the level of gene transcription by two distal enhancers, E1 and E2. Characterization of …
Characterization And Comparison Of Cell Frequency, Growth, And Multipotential Differentiation Of Adult Mesenchymal Stromal Cells Derived From Equine Bone Marrow And Adipose Tissue, Martin Andreas Vidal
Characterization And Comparison Of Cell Frequency, Growth, And Multipotential Differentiation Of Adult Mesenchymal Stromal Cells Derived From Equine Bone Marrow And Adipose Tissue, Martin Andreas Vidal
LSU Doctoral Dissertations
Equine bone marrow-derived mesenchymal stromal cells (MSCs) and adipose tissue-derived stromal cells (ASCs) were compared for frequency within their respective tissues, cell doubling characteristics and differentiation multipotential in culture based on histochemical staining and compositional analysis. Equine MSCs and ASCs from young adult horses were harvested and isolated from sternal bone marrow and supragluteal subcutaneous adipose tissue, respectively, and grown up to passage 10 (P10) to determine cell doubling characteristics. Limit dilution assays were performed on primary and passaged (P2, P4) MSCs and ASCs to determine the frequency of colony forming units with a fibroblastic phenotype (CFU-F), and the frequency …
Effects Of Centrifugation On Equine Spermatozoa Immediately And After Cooling For 24 Hours, Jose Augusto Len
Effects Of Centrifugation On Equine Spermatozoa Immediately And After Cooling For 24 Hours, Jose Augusto Len
LSU Master's Theses
Len, Jose Augusto, MVZ, Universidad de Guadalajara, 1994 Master of Science, Summer Commencement, 2008 Major: Veterinary Medical Sciences Effects of Centrifugation on Equine Spermatozoa Immediately and After Cooling for 24 Hours Thesis directed by Professor Bruce Eilts Pages in thesis, 60. Words in abstract, 245. ABSTRACT The objectives of this study were to determine the effects of centrifugation on equine sperm progressive motility, plasma membrane integrity (viability), and acrosome integrity. We hypothesized that high centrifugation forces would be detrimental to equine sperm, yet recovery rates would increase. Ejaculates from six stallions were collected, extended (INRA96) to a concentration of 25 …
Comparative Roles Of Herpes Simplex Virus Type 1 (Hsv-1) Glycoproteins In Cytoplasmic Virion Egress, Hyuncheol Lee
Comparative Roles Of Herpes Simplex Virus Type 1 (Hsv-1) Glycoproteins In Cytoplasmic Virion Egress, Hyuncheol Lee
LSU Master's Theses
HSV-1 acquires its final envelope by budding into cytoplasmic vesicles thought to be derived from Trans-Golgi Network (TGN) membranes. This process is facilitated by interactions among the carboxyl termini of viral glycoproteins and tegument proteins. To investigate the relative importance of different viral glycoproteins in cytoplasmic virion morphogenesis, a set of recombinant viruses were constructed silencing expression of the glycoprotein E (ΔgE), the carboxyl terminus of glycoprotein D (gDΔcp), and the membrane protein UL20 (ΔUL20). In addition, recombinant viruses were constructed having the ΔgE+gDΔcp, and the ΔgE+ΔgM (glycoprotein M) deletions. These recombinant viruses were constructed using the double-red, site-directed mutagenesis …