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Articles 1 - 9 of 9
Full-Text Articles in Physical Sciences and Mathematics
Development Of Bioanalytical Methods For Quantitative Measurement Of Anticancer Agents, Sandeep R. Kunati
Development Of Bioanalytical Methods For Quantitative Measurement Of Anticancer Agents, Sandeep R. Kunati
ETD Archive
The ever-growing need to develop new anticancer agents due to increased incidence of cancer and its recurrence has led to a broad range of investigational efforts in anticancer research. Drug discovery and development processes involve evaluations of pharmacokinetic and pharmacodynamic parameters of potential drug candidates in order to assess their safety, toxicity, and efficacy profiles. By providing sensitivity, assay precision, reliability, and high-throughput, mass spectrometry has become an indispensable tool in quantitative and qualitative analysis, from early-stage drug discovery and development processes to routine laboratory analysis. Development of bioanalytical methods requires knowledge of separation science with instrumentation, data interpretation and …
Biomimetic Macromolecules For Macrophage Targeting And Modulation, Joshua Whited
Biomimetic Macromolecules For Macrophage Targeting And Modulation, Joshua Whited
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Carbohydrate recognition has come to the forefront of biological aiming to uncover the mechanisms of physiological and pathological processes. Cell surface glycans are involved in processes including cellular adhesion, cell signaling, and immune response. A new approach for profiling cell surface glycans has great potential for a wide range of biomedical applications. Lectins have been conventionally used to determine the structure and function of glycoproteins, however, their numbers are still restricted compared to the number of glycan structures. Boronic acid has proven a remarkable small molecule capable of binding diols in aqueous solution. This interaction indicates boronic acid derived molecules …
Synthesis And Biological Evaluation Of Small Molecular Drug Candidates For The Treatment Of Her2 Overexpressed Breast Cancer, Anran Zhao
ETD Archive
In the US breast cancer is the most common cancer after skin cancer. Currently in the US the average risk of a woman to develop breast cancer in her life is roughly 12%. About 25-30% of breast cancer patients have HER2 overexpressed tumor, and the growth of tumor cell is depend on HER2 pathway. It has been well-documented that patients with over-expressed HER2 are associated with increased disease recurrence, worse prognosis and lower survival. Currently there are two type of HER2 targeting drug. The first group is HER2 monoclonal antibody drugs such as trastuzumab approved by FDA in 1998; the …
Quantitative Analysis Of Bleomycin In Rat Plasma By Lc-Ms/Ms, Huawen Li
Quantitative Analysis Of Bleomycin In Rat Plasma By Lc-Ms/Ms, Huawen Li
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Bleomycin is the most commonly used compound in its group of antineoplastic drugs. It works on tumor cells by single and double stranded DNA cleavage after its activation, in which it blocks tumor cells’ DNA replication or transcription activities to inhibit tumor cells’ growth. Bleomycin sulfate (Blenoxane) is the most popular preparation used in clinical research, and contains Bleomycin fractions of A2 and B2, which causes difficulties in quantitative analysis. This work uses the metal chelating property of Bleomycin as an advantage to simplify and improve sensitivity of existing quantitative methods. Copper was spiked in excess to plasma samples, followed …
Computational Investigation Of Protein Assemblies, Sm Bargeen Alam Turzo
Computational Investigation Of Protein Assemblies, Sm Bargeen Alam Turzo
ETD Archive
Selective nitrosylation of glyceraldehyde 3-phosphate dehydrogenase (GAPDH) at Cys-247 affects gene regulation through the interferon-gamma (IFN- γ) activated inhibitor of translation (GAIT) complex. Oxidized low-density lipoprotein (LDLox) and INF-γ induce assembly of the nitrosylase complex composed of inducible nitric oxide synthase (iNOS), S100A8, and S100A9 proteins. Crystal structure of the complex of GAPDH and S100A8A9 is not known, structural prediction method were employed by protein-protein docking and binding energy calculation with PatchDock and FIREDock respectively. Candidate models were selected, based on a weight factor calculated, from the computational method developed from the "artificial protease" cleavage mapping Fe(III) (s)-1-(p- …
Oxidation Of Ferrocene Derivatives With Dibenzoyl Peroxide And Meta-Chloroperoxybenzoic Acid, Jos M. Halstead
Oxidation Of Ferrocene Derivatives With Dibenzoyl Peroxide And Meta-Chloroperoxybenzoic Acid, Jos M. Halstead
ETD Archive
The chemical oxidation of ferrocene and related derivatives (RFc) via organic peroxides solvated in acetonitrile was studied spectrophotometrically by varying concentration and temperature to determine kinetics and activation parameters. The reaction rate of ferrocene with dibenzoyl peroxide depends strongly on whether electron withdrawing or donating substituents are present. Products were analyzed and the effect of different solvents on reactivity were studied. The rate law was first order in both oxidant and reductant, and steric and solvent effects are consistent with outer sphere electron transfer (ET) as the rate-controlling step. B3YLP calculations were conducted to determine reorganization energies using Marcus theory …
Model Chemistry Study Of Choline And Urea Based Deep Eutectic Solvents, Libby Nicole Kellat
Model Chemistry Study Of Choline And Urea Based Deep Eutectic Solvents, Libby Nicole Kellat
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Gaussian and GaussView software were utilized to characterize interactions between choline salts and urea, which form a deep eutectic solvent (DES). The initial system studied was choline chloride and urea, at a 1:2 molar ratio, which is also known as reline. Subsequent systems, substituting the chloride anion with other anions (fluoride, bromide, and hydroxide), were studied to show that the system with greater calculated strength of interaction will have more non-ideal physical properties, such as melting point (found in literature). Observations regarding structure related to counterion electron density and hydrogen bonding were made throughout the studies.
Il-17 Drives Copper Uptake And Activation Of Growth Pathways In Colorectal Cancer Cells In A Steap4-Dependent Manner, Evan Martin
Il-17 Drives Copper Uptake And Activation Of Growth Pathways In Colorectal Cancer Cells In A Steap4-Dependent Manner, Evan Martin
ETD Archive
Colorectal cancer is a disease characterized by abnormal, invasive cell growth beginning in the colon or rectum. The third most common type of cancer worldwide, approximately one million new cases of the disease are diagnosed across the globe annually, resulting in an estimated 700,000+ deaths. One major risk factor associated with development of colorectal cancer is the presence of chronic inflammation in the large intestine, also known as colitis. Inflammation is a complex immune response against harmful stimuli, characterized by symptoms including heat, redness, swelling and pain. One important molecular mediator of this process is interleukin 17 (IL-17), a pro-inflammatory …
Il-17 Drives Copper Uptake And Activation Of Growth Pathways In Colorectal Cancer Cells In A Steap4-Dependent Manner, Evan Martin
Il-17 Drives Copper Uptake And Activation Of Growth Pathways In Colorectal Cancer Cells In A Steap4-Dependent Manner, Evan Martin
ETD Archive
Colorectal cancer is a disease characterized by abnormal, invasive cell growth beginning in the colon or rectum. The third most common type of cancer worldwide, approximately one million new cases of the disease are diagnosed across the globe annually, resulting in an estimated 700,000+ deaths. One major risk factor associated with development of colorectal cancer is the presence of chronic inflammation in the large intestine, also known as colitis. Inflammation is a complex immune response against harmful stimuli, characterized by symptoms including heat, redness, swelling and pain. One important molecular mediator of this process is interleukin 17 (IL-17), a pro-inflammatory …