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Purification and characterization of A[beta] and probing the interactions between myricetin and A[beta] using various spectroscopic methods
(University of Missouri--Columbia, 2009)
[beta] fragments, A[beta](1-16) and A[beta](25-40), together with A[beta](1-42) were investigated. HPLC purification was conducted on crude A[beta](1-16) and A[beta](25-40) using a Beckman System Gold HPLC system, a Vydac C18 column and a combination...
Inactivation of protein tyrosine phosphatases by endogenous and dietary agents
(University of Missouri--Columbia, 2009)
Protein tyrosine phosphatases are a class of enzymes that control a number of critical signaling pathways inside cells. We have discovered a number of dietary and endogenous agents that are capable of modifying these ...
Investigations into the chemistry of protein tyrosine phosphatase redox regulation
(University of Missouri--Columbia, 2009)
Transmission of complex intracellular signals, such as those for glucose uptake or proliferation, is often accomplished through the reversible phosphorylation of specific protein tyrosine residues. This reversible ...
Study of the chemistry of 2,1-benzothiazines and toward the total synthesis of elisapterosin B
(University of Missouri--Columbia, 2009)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] Using enantiomerically pure benzothiazines as templates, enantiomerically pure cyclobutanes were prepared. Such compounds are potentially interesting ...
Metabolically activated heterocyclic N-oxide compounds for killing and visualizing hypoxic cancer cells
(University of Missouri--Columbia, 2009)
Tirapazamine (TPZ) is currently undergoing a variety of phase I, II, and III clinical trials for the treatment of various human cancers. TPZ derives its medicinal activity by inducing DNA damage in poorly oxygenated tumor ...
Development of advanced chemometric methods for the analysis of deep-UV resonance Raman spectra of proteins
(University of Missouri--Columbia, 2009)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] Ultra violet resonance Raman (UVRR) is a powerful spectroscopic technique for determining the secondary structural content of proteins in solution. ...
Structure-activity relationship of octreotide analogues labeled with rhenium and technetium-99m
(University of Missouri--Columbia, 2009)
The goal of this research is to cyclize octreotide analogues with ⁹⁹[supersript-m]Tc and ¹⁸⁶/¹⁸⁸Re radiometals to be used as diagnostic and therapeutic agents for neuroendocrine tumors, respectively. Several series of ...
Prospective radiolabled bombesin conjugates for prostate cancer imaging and therapeutic agents
(University of Missouri--Columbia, 2009)
An active area of prostate cancer research is in the synthesis of radiolabeled peptides for in vivo tumor imaging or therapy. This method is possible since specific receptors are expressed in high concentration on certain ...
Core-based hyperbranched polyethyleneimine coating in capillary electrophoresis
(University of Missouri--Columbia, 2009)
In capillary electrophoresis (CE), chemical and dynamic modification of a fused silica surface can be used to control the electroosmotic flow (EOF), to minimize the interaction of analytes with the capillary surface and ...
Oxidation & 1, 5-hydride shift of sulfoximine derivatives
(University of Missouri--Columbia, 2009)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] Oxidation of N-alkyl and N-aryl sulfoximines and 1,5-hydride shift of S-alkenyl sulfoximines have been studied. Oxidation of N-alkyl sulfoximines using ...