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Full-Text Articles in Medicine and Health Sciences

Polymeric Nanovaccine Delivery System For Influenza Vaccine, Chaitanya K. Valiveti Jan 2022

Polymeric Nanovaccine Delivery System For Influenza Vaccine, Chaitanya K. Valiveti

Electronic Theses and Dissertations

Vaccines are the most efficient and cost-effective method for preventing illnesses caused by infectious pathogens. Even though the great success of vaccines over decades, the development of safe and robust vaccines is still essential for emerging new pathogens, re-evolving old pathogens, and improving the insufficient protection given by existing vaccines. One of the most critical strategies for developing effective new vaccines is selecting and using a suitable adjuvant or immune stimulant. Immunologic adjuvants are essential for improving vaccine potency by enhancing the immune response of vaccine antigens. The amount of antigen could be spared with improved potency, especially during mass …


Role Of Host Restriction Factors On Porcine Reproductive And Respiratory Syndrome Virus (Prrsv) Replication, Pratik Katwal Jan 2022

Role Of Host Restriction Factors On Porcine Reproductive And Respiratory Syndrome Virus (Prrsv) Replication, Pratik Katwal

Electronic Theses and Dissertations

In this study, the role of IFITM3 on PRRSV replication was studied in vitro by expressing exogenous IFITM3 in MARC-145 cells. An average of 31% reduction in PRRSV N protein expression and an average of 5.4 fold decrease in virus titer in the supernatant were observed in IFITM3 overexpressing cells as compared to vector control cells at 24 hours post infection (hpi). Moreover, there was a positive correlation between interferon- induced IFITM3 up-regulation and reduced PRRSV replication. To determine the role of endogenous IFITM3 in PRRSV replication, siRNA induced knockdown of IFITM3 was employed. RT-PCR validated the successful silencing of …


Genistein-Enriched Pig Gut Microbiota Library As A Potential Probiotic Consortium, Theresah Amponsah Jan 2022

Genistein-Enriched Pig Gut Microbiota Library As A Potential Probiotic Consortium, Theresah Amponsah

Electronic Theses and Dissertations

Plant-based diets contain numerous flavonoid compounds that produce antibacterial effects and gut health improvement. Genistein is among the most abundant isoflavones present in a plant-based diet and can be found in high amounts in soy products (up to 1g Kg-1). We describe here a robust method to identify genistein tolerant and metabolizing bacteria in swine gut microbiota and to screen the strains that have antibacterial and immunestimulatory properties. Such strains could be developed as non-antibiotic alternatives to prevent enteric infections in pigs and improve gut immunity. To this end, a mini bioreactorbased system was used to enrich genistein metabolizing bacteria …


Decoding The Mystery Of Antibiotic Persistence, Tahmina Hossain Jan 2022

Decoding The Mystery Of Antibiotic Persistence, Tahmina Hossain

Electronic Theses and Dissertations

This work combines microbiology, molecular biology, Next-Generation Sequencing and system biology approaches to explore the mechanism of antibiotic persistence: a multi-drug tolerant, non-dividing, and metabolically altered state present in a subpopulation of cells due to phenotypic diversity rather than genetic variation (i.e. mutations). Persister can survive lethal antibiotic state and resuscitate after the treatment period is over. They are considered as the major contributing factor behind recurring infections. They also have a high mutation rate, which increases the chances of bacteria gaining antibiotic resistance. The formation of this phenotypic variant (persister) threatens the therapeutic effectiveness of antibiotics and understanding how …


Emerging Respiratory Viral Pathogens, April Nelsen Jan 2022

Emerging Respiratory Viral Pathogens, April Nelsen

Electronic Theses and Dissertations

Respiratory disease is arguably the most important health concern for the production animal industry [1-3]. Respiratory problems accounted for the highest mortality both in the swine and beef industries [1, 4]. Respiratory pathogens remain the most vital for swine and bovine research and disease monitoring [2, 5-7]. As pathogens, in particular viral pathogens, mutate, novel disease-causing viruses emerge, and there becomes an increasing concern and need for identification with control perimeters. One frequently identified disease syndrome is Porcine Respiratory Disease Complex (PRDC). PRDC is characterized by pneumonia of mixed respiratory infections with contributions from the environment and management practices. The …


Factors Associated With Increased Breastfeeding At Initiation And Continuation At Two Months In American Indian Women, Addison Reimer Jan 2022

Factors Associated With Increased Breastfeeding At Initiation And Continuation At Two Months In American Indian Women, Addison Reimer

Electronic Theses and Dissertations

Introduction: The purpose of this report was to determine the prevalence of breastfeeding at initiation and two months continuation in American Indian South Dakota mothers who gave birth between 2017-2019 and determine the factors associated with breastfeeding and various health behaviors and beliefs. This study serves to fill the current gaps in research focusing on breastfeeding in American Indian women in South Dakota. Methods: Data from the South Dakota Pregnancy Risk Assessment Monitoring System (SD PRAMS), a state-based surveillance system, was used to investigate the relationship between breastfeeding and maternal behaviors, attitudes, and experiences. Logistic regression was used to determine …