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Articles 1 - 11 of 11
Full-Text Articles in Chemicals and Drugs
Analyzing Functional Interactions Of Designed Peptides By Nmr Spectroscopy, Wonsuk Choi
Analyzing Functional Interactions Of Designed Peptides By Nmr Spectroscopy, Wonsuk Choi
Pharmaceutical Sciences (MS) Theses
The development of small peptide-based therapeutics can be accelerated by the knowledge of relationships between the peptide structure and its functional interactions. Here, we report the analysis of two groups of synthetic peptides designed for two applications – broad bactericidal action and inhibition of protein-protein interactions in human cells. Novel amphiphilic peptides designed for antibacterial application incorporated arginine as cationic amino acids and non-natural amino acids that have aromatic side chains with similar hydrophobic properties as tryptophan. The interaction of lead cyclic peptides and their linear analogs with a phospholipid bilayer mimicking a bacterial membrane was studied using nuclear magnetic …
The Threat Of Hospital Wastewater: An Evidence-Based Call To Action, Ann P. Nguyen
The Threat Of Hospital Wastewater: An Evidence-Based Call To Action, Ann P. Nguyen
DNP Qualifying Manuscripts
Introduction: Hospital wastewater carries a unique composition of pollutants, a burden that includes high chemical and biological residuals. These pollutants are discharged into sewage treatment plants and natural environments where they contaminate human water sources and larger ecosystems. Water treatment plants are not designed to treat the high loads of biomedical waste and persistent organic compounds found in hospital wastewater and therefore pollutants survive in conventionally treated water. Evidence of contaminated soil, municipal wastewater, surface water, ground water, and even drinking water have been demonstrated in studies conducted around the world highlighting the ubiquity of the problem. Hospital effluent as …
Characterization Of Differential Rearing And Sex On 5-Ht2ar Receptor Activation, Kelsey Lowe
Characterization Of Differential Rearing And Sex On 5-Ht2ar Receptor Activation, Kelsey Lowe
Theses/Capstones/Creative Projects
The prevalence of substance use disorders (SUDs) continues to rise while the number of medications to combat this deadly disorder remains stagnant. Entirely new thinking about what exemplifies a possible therapeutic is needed. Hallucinogens are continually being studied more as possible treatments for many psychological conditions, including SUDs. Classic hallucinogens engage many serotonin and monoamine systems, but the hallucinogenic effects are driven by serotonin 5-HT2A receptor (5-HT2AR) activation. Forced social isolation induces chronic stress, increases 5-HT2AR expression in the cortex and have been suggested to play a role in the comorbidity between stress, maladaptive coping, …
The Effects Of Clonidine On Neonatal Abstinence Syndrome Patient Outcomes, Claire E. Flatt
The Effects Of Clonidine On Neonatal Abstinence Syndrome Patient Outcomes, Claire E. Flatt
Chancellor’s Honors Program Projects
No abstract provided.
Leveraging Bio-Inspired Molecules For Cancer Theranostics, Douglas S. Macpherson
Leveraging Bio-Inspired Molecules For Cancer Theranostics, Douglas S. Macpherson
Dissertations, Theses, and Capstone Projects
A variety of molecules can be radiolabeled and delivered to a cancer site for the purposes of diagnostics and therapy. Among the most promising of tumor targeting molecules are peptides and antibodies. These bio-inspired molecules can be designed and synthesized to target and respond to cancer cells based on the properties of those cells. Matrix metalloproteinase (MMP) enzymes are over-expressed by some metastatic cancers, in which they are responsible for the degradation and remodeling of the extracellular matrix. In recent years, MMPs have emerged as promising targets for enzyme-responsive diagnostic probes because oligopeptides can be designed to be selectively hydrolyzed …
Second Generation Phenyloxadiazolyl Methyl Sulfones For Thiol-Specific Bioconjugations, Guillaume Dewaele-Le Roi
Second Generation Phenyloxadiazolyl Methyl Sulfones For Thiol-Specific Bioconjugations, Guillaume Dewaele-Le Roi
Dissertations, Theses, and Capstone Projects
The role of antibody-based molecular agents for diagnosis and therapy of cancer has expanded significantly over the past decades. However, most of these constructs are synthesized using traditional bioconjugation methods based on the random ligations between the molecular cargo and lysine residues within the protein. These non-specific approaches can create poorly defined conjugates with suboptimal immunoreactivity and in vivo performance while Site-specific approaches to antibody bioconjugation based on ligations between maleimides and free cysteine residues have long stood as attractive alternatives. Yet the inherent instability of the thiol-maleimide linkage has fueled the search for new, more stable thiol-reactive prosthetic groups. …
Engineered Plga Nanofibers For Drug Delivery, Andrew Mancuso
Engineered Plga Nanofibers For Drug Delivery, Andrew Mancuso
Dissertations, Theses, and Capstone Projects
Poly-lactic-co-glycolic acid (PLGA) polymers are rapidly gaining momentum as a platform for next-generation drug delivery systems due to their ease and low cost of synthesis, favorable biocompatibility and biodegradability, and lack of toxicity. In particular, the application of drug-loaded PLGA nanofibers directly to a target tissue may represent a promising alternative to traditional routes of drug administration (e.g., oral, injectable) as they offer the potential to greatly improve bioavailability, increase efficacy, and reduce off-target toxicity. Furthermore, the use of such a system may potentially allow for greater flexibility in clinical drug development, by enabling the use of compounds which have …
Effects Of Disulfiram On The Metabolome Of Mrsa, Surya Teja Naidu
Effects Of Disulfiram On The Metabolome Of Mrsa, Surya Teja Naidu
Theses, Dissertations and Capstones
Disulfiram, known as Antabuse®, is an oral drug for the treatment of alcohol dependence. Previous studies have indicated that disulfiram (DSF) exhibits antibacterial effects, particularly against Gram-positive bacteria, such as methicillin-resistant Staphylococcus aureus (MRSA). Our study delves into the antibacterial mechanism of DSF in MRSA through High-Pressure Liquid Chromatography (HPLC) metabolomics, investigating the underlying mechanism of DSF effects on thiamine and amino acid metabolism. Thiamine pyrophosphate (TPP) plays a crucial role as a cofactor for critical enzymes such as transketolase, pyruvate dehydrogenase, and 2-oxoglutarate dehydrogenase. These enzymes are integral to the carbohydrate metabolism process within bacterial cells. TPP also contributes …
Enhancing Dna-Damaging Therapy Through The Inhibition Of Dntp Synthesis Using A Synergistic Drug Combination To Treat Pancreatic Neuroendocrine Neoplasms, Jennifer Castle Md
Enhancing Dna-Damaging Therapy Through The Inhibition Of Dntp Synthesis Using A Synergistic Drug Combination To Treat Pancreatic Neuroendocrine Neoplasms, Jennifer Castle Md
Theses and Dissertations--Clinical and Translational Science
Despite clinical advances, pancreatic neuroendocrine neoplasms (pNEN) remain a difficult clinical entity to treat and can carry a poor prognosis. Systemic therapy is used to treat pNENs which are not amenable to surgical resection. Peptide receptor radionuclide therapy, a form of radiation therapy (RT) and cisplatin are two different forms of DNA-damaging therapy in current use to treat pNENs. However, their efficacy remains poor as single agents. This study aimed to increase the sensitivity of pNENs to the DNA-damaging agents, RT and cisplatin, by inhibiting deoxynucleotide triphosphate (dNTP) synthesis. Triapine, a ribonucleotide reductase inhibitor (RNRi), and ataxia telangiectasia and Rad3-related …
Self-Assembled Ternary Polypeptide Nanoparticles With Improved Biostability For Drug Delivery In Cancer Therapy, Preye Mike Agbana
Self-Assembled Ternary Polypeptide Nanoparticles With Improved Biostability For Drug Delivery In Cancer Therapy, Preye Mike Agbana
Theses and Dissertations--Pharmacy
Cancer remains a real and present threat to global health. In the United States, according to cancer statistics, almost 40% of people will be diagnosed with cancer at some point in their lifetime. Conventional chemotherapy has become the mainstay for cancer treatment option. However, chemotherapeutic agents are plagued with problems such as poor aqueous solubility, chemical degradation, Bio instability, and off-site toxicity due to non-specificity. New drug modalities are needed to tackle the ever-growing burden on cancer. In recent times, the promise of nanotechnology has aided to develop drug delivery vehicles to facilitate the administration of potent chemotherapeutics. Nanoformulations such …
Cultivating Health, Not Wealth In The United States' Healthcare System: Comprehensive Revisions For The Orphan Drug Act Of 1983, Kayla Smith
Regis University Student Publications (comprehensive collection)
This thesis explores the way in which the Orphan Drug Act of 1983, originally instituted in response to a lack of treatments for rare diseases in the United States of America, has failed to achieve its initial objectives in the 40 years since its implementation. In evaluating various successful examples of government subsidization programs designed to intervene in private industry, this thesis composes the criterion required for funding-based legislation which maximize market outcomes while minimizing tax-payer burden. An analysis of the synthetic organic chemistry industry – and a case study into the production of a particular orphan treatment for a …