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Articles 1 - 14 of 14
Full-Text Articles in Life Sciences
Kshv Susceptibility And Transmission Within Tonsillar Specimens, Farizeh Aalam
Kshv Susceptibility And Transmission Within Tonsillar Specimens, Farizeh Aalam
Pharmaceutical Sciences (PhD) Dissertations
Despite nearly three decades of research, not much is known regarding the early stages of development for KSHV lymphoproliferative disorders, hindering our ability to develop prophylactic measures or effective treatments. This dissertation will focus on the host and viral factors influencing the magnitude and dynamics of KSHV infection in the human tonsil to pave the way for future interventions directed at limiting person-to-person transmission of KSHV.
To understand the contribution of host factors to KSHV susceptibility in B lymphocytes, we generated a library of 40 tonsillar specimens. Our results indicate that the immunological composition of tonsillar lymphocytes varies across our …
Gamma And X-Ray Irradiation Improve Postharvest Shelf-Life In 'Bartlett' Pears, Matthew Garcia
Gamma And X-Ray Irradiation Improve Postharvest Shelf-Life In 'Bartlett' Pears, Matthew Garcia
Food Science (MS) Theses
The objective of this study was to investigate the effects of gamma and x-ray treatment on ‘Bartlett’ pear physiology during postharvest storage. Freshly harvested ‘Bartlett’ pears were irradiated with gamma irradiation at 0.412 and 0.819 kGy and x-ray irradiation at 1.03 and 1.94 kGy, then stored at 0-1 ⁰C and 95% relative humidity. The pears were removed from cold storage at 45 and 75 days and allowed to ripen at room temperature for four and two days, respectively. Respiration rate and ethylene production were measured during fruit ripening. Color, firmness, titratable acidity, soluble solids contents, and occurrence of superficial scald …
Characterization Of The Growth Factor Receptor Network Oncogenes In Lung Cancer, Ashley Duche
Characterization Of The Growth Factor Receptor Network Oncogenes In Lung Cancer, Ashley Duche
Pharmaceutical Sciences (MS) Theses
Lung cancer remains the leading cause of cancer related deaths worldwide, reportedly contributing to 1.8 million of the 10.0 million mortalities documented in the year 2020. Although advancements have been made in therapeutics and diagnostic methods, formulation of effective treatments and development of drug resistance continues to be a challenge. These challenges arise from our lack of understanding of intricate signaling pathways, such as the Growth Factor Receptor Network (GFRN), which contributes to complex lung tumor heterogeneity allowing for drug resistance development. In this study, gene expression signatures of six GFRN oncogenes overexpressed in human mammary epithelial cells (HMECs) were …
Application Of A Dna Mini-Barcoding System Based On The Mitochondrial Control Region For The Identification Of Raw And Processed Tuna Products, Jiahleen Roungchun
Application Of A Dna Mini-Barcoding System Based On The Mitochondrial Control Region For The Identification Of Raw And Processed Tuna Products, Jiahleen Roungchun
Food Science (MS) Theses
Accurate species identification methods are needed to combat tuna fraud, improve tuna stock regulation, and mitigate health risks associated with mislabeled tuna products. The objective of this study was to conduct a market survey of raw and processed tuna products using a DNA mini-barcoding system based on the mitochondrial control region (CR). A total of 80 samples of raw, dried, and canned tuna products were collected at the retail level for CR mini-barcoding analysis. The samples underwent DNA extraction, polymerase chain reaction (PCR), and DNA sequencing of the 236-bp CR mini-barcode. The resulting sequences were searched against GenBank using the …
Assessing The Efficacy Of Bacteriological Analytical Manual (Bam) Enrichment Broths For Detection Of Salmonella Spp. In Meat Analogs, Georgia Sampson
Assessing The Efficacy Of Bacteriological Analytical Manual (Bam) Enrichment Broths For Detection Of Salmonella Spp. In Meat Analogs, Georgia Sampson
Food Science (MS) Theses
Plant-based meat alternatives are gaining popularity as the number of market options increases. However, the recent appearance of these products on the market post-dates the validation of the current approach for isolating Salmonella from meat analogs. Therefore, the objective of this study was to compare the efficacy of the currently used Bacteriological Analytical Manual (BAM) pre-enrichment broth (lactose broth) with two additional broths (universal pre-enrichment broth and buffered peptone water) for the detection of Salmonella in five plant-based burger products. Each burger product was spiked with a Salmonella serotype (S. Enteritidis or S. Agona) that has previously been linked …
Automated Parsing Of Flexible Molecular Systems Using Principal Component Analysis And K-Means Clustering Techniques, Matthew J. Nwerem
Automated Parsing Of Flexible Molecular Systems Using Principal Component Analysis And K-Means Clustering Techniques, Matthew J. Nwerem
Computational and Data Sciences (MS) Theses
Computational investigation of molecular structures and reactions of biological and pharmaceutical interests remains a grand scientific challenge due to the size and conformational flexibility of these systems. The work requires parsing and analyzing thousands of conformations in each molecular state for meaningful chemical information and subjecting the ensemble to costly quantum chemical calculations. The current status quo typically involves a manual process where the investigator must look at each conformation, separating each into structural families. This process is time-intensive and tedious, making this process infeasible in some cases, and limiting the ability of theoreticians to study these systems. However, the …
The Impact Of Processing On The Content And Composition Of Bovine Milk Extracellular Vesicles, Anna Colella
The Impact Of Processing On The Content And Composition Of Bovine Milk Extracellular Vesicles, Anna Colella
Food Science (MS) Theses
Bovine milk (BM)-based formula is an alternative for many newborns who do not consume human milk. BM contains extracellular vesicles (EVs), bioactive compounds involved in intercellular communication which regulate critical developmental processes in early life. It was hypothesized that the industrial processing of raw BM affected the content and composition of BM EVs. It is critical to understand how industrial processing affects EVs in BM since changes in the content and composition may attenuate the functions of these bioactive compounds in human health. EVs from raw BM were isolated and characterized in accordance with the Minimal Information for Studies of …
Drug Repurposing For Covid-19 Using Molecular Docking Tools, Deniz Yasar Oztas
Drug Repurposing For Covid-19 Using Molecular Docking Tools, Deniz Yasar Oztas
Computational and Data Sciences (MS) Theses
Since severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is highly contagious and mortal, finding a treatment is time critical. Drug repurposing is probably the quickest and safest approach in our arsenal. However, testing every drug in a brute force manner would require a lot of resources, and a more sophisticated method is required to filter possible candidates. Since several molecules have already been shown to be effective against SARS-CoV-2 in wet-lab experiments, choosing drugs with similar characteristics would increase our chances of success. In this study, we compare the molecular docking results of FDA-approved drugs from the ZINC database against …
Color And Structural Modifications Of Alkaline Extracted Sunflower Protein Concentrates And Isolates Using L-Cysteine And Glutathione, Akira Ishii
Food Science (MS) Theses
Sunflower protein can be extracted at alkaline pH with sulfites or organic solvent de-phenolization of sunflower seed meals if greening is unwanted. This greening is promoted at alkaline pH when chlorogenic acid (CGA) oxidizes and reacts with free amine groups from amino acids, such as lysine. Thiol-containing dough conditioners: L-cysteine hydrochloride and reduced glutathione (GSH) were investigated as an alternative de-greening strategy to de-phenolization. Varying pH from 7 to 11 and concentration of 0.82 to 5.6 mM were randomly assigned by Response Surface Methodology (RSM) to evaluate the combined and additive greening inhibition effect of thiol and extraction pH. The …
Pathogenesis Of Dry Eye In Graft Versus Host Disease (Gvhd): Role Of Ocular Mucins And Conjunctival Fibrosis, Kiumars Shamloo
Pathogenesis Of Dry Eye In Graft Versus Host Disease (Gvhd): Role Of Ocular Mucins And Conjunctival Fibrosis, Kiumars Shamloo
Pharmaceutical Sciences (PhD) Dissertations
Allogenic hematopoietic stem cell transplantation is a procedure that offers a possible cure for hematologic cancers and other hematologic disorders. Unfortunately, despite the increasing survival rate of patients, the quality of their life is adversely affected by the allogeneic bone marrow transplantation’s major side effect i.e Graft vs. Host Disease (GVHD). GVHD is a complex, multi-organ disease resulting from an immunological attack by donor engrafted immune cells to host organs, including the eye surface. Mostly based on the time of disease onset after transplantation, GVHD is divided into the acute and chronic phase. The eyes may be involved in both …
Design And Sythesis Of Conjugages Of Amphiphilic Cell-Penetrating Peptides Containing Anticancer Drug And Ligand For Extra Cellular Matrix Biomarker To Provide Efficient Tumor-Targeting, Shang Eun Park
Pharmaceutical Sciences (PhD) Dissertations
Peptide-drug conjugates (PDCs) have emerging applications in the safer delivery of chemotherapeutics to the site of diseases to avoid the side effects associated with the drug. PDCs also improve the physicochemical property of the anticancer drug. Therefore, we have designed and synthesized various conjugates of anticancer drugs with cancer- targeting peptides using established biomarkers of cancer such as the integrin receptor and extra-domain of fibronectin (EDB-FN) at the extracellular matrix. In the first studies, a series of targeting peptides targeting EDB-FN were synthesized and conjugated to different anticancer drugs. The synthesis, characterization, stability, and hydrolysis were performed. Cell viability studies …
Amphiphilic Cell-Penetrating Peptides Containing Natural And Unnatural Amino Acids As Drug Delivery Tools And Antimicrobial Agents, David Salehi
Pharmaceutical Sciences (MS) Theses
Cell-penetrating peptides containing arginine as positively charged residues and tryptophan or diphenylalanine as hydrophobic residues were synthesized. The synthesis was accomplished through the Fmoc solid-phase peptide synthesis in the presence of HBTU and DIPEA. The side-chain protected linear peptides were cleaved from the resin and cyclized in the presence of DIC and HOAt in the solution phase overnight. MALDI-TOF mass spectrometry was used to characterize the peptides.
The cytotoxicity of the synthesized peptides was determined in CCRF-CEM (human, lymphoblast peripheral blood), and HEK-293 (human, embryonic epithelial kidney healthy) cells using the MTS assay. A concentration of 10 µM was found …
Viral Factors Influencing Early Infection Events During Ex-Vivo Kshv Infection, Ramina Nabiee
Viral Factors Influencing Early Infection Events During Ex-Vivo Kshv Infection, Ramina Nabiee
Pharmaceutical Sciences (PhD) Dissertations
The enigma of Kaposi Sarcoma Herpes Virus infection, and its persistence despite a quarter century of research on the virus, has given rise to an immediate need for addressing fundamental questions about basic immunology and virology knowledge regarding this virus. Kaposi Sarcoma Herpes Virus (KSHV), also known as Human Herpesvirus 8 (HHV8), is the etiological agent of Kaposi Sarcoma (KS) and other lymphoproliferative cancers, such as Multicentric Castleman’s Disease (MCD), Primary Effusion Lymphoma (PEL), and a newly discovered rare disease called KSHV Inflammatory Cytokines Syndrome (KICS). Epidemic KS, also known as AIDS-KS, is the most common cancer in untreated HIV …
Structural Characterization And In Vitro Antiproliferative Activity Of Non-Specific Lipid Transfer Protein 1 (Nsltp1) From Fennel (Foeniculum Vulgare) Seeds, Mekdes Megeressa
Structural Characterization And In Vitro Antiproliferative Activity Of Non-Specific Lipid Transfer Protein 1 (Nsltp1) From Fennel (Foeniculum Vulgare) Seeds, Mekdes Megeressa
Pharmaceutical Sciences (PhD) Dissertations
Non-specific lipid transfer proteins (nsLTPs) are cationic proteins involved in intracellular lipid shuttling, in growth and reproduction, as well as in defense against pathogenic microbes. Even though the primary and spatial structures of some nsLTPs from different plants indicate their similar features, they exhibit distinct lipid-binding specificities signifying their various biological roles that dictate further structural study. The present study determined the complete amino acid sequence, in silico 3D structure modeling, and in vitro antiproliferative activity of nsLTP1 from fennel (Foeniculum vulgare) seeds.
Fennel is a member of the family Umbelliferae (Apiaceae) native to southern Europe and the …