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Articles 1 - 5 of 5
Full-Text Articles in Medicine and Health Sciences
Multifunctional Donepezil Analogues As Cholinesterase And Bace1 Inhibitors, Keith D. Green, Marina Y. Fosso, Sylvie Garneau-Tsodikova
Multifunctional Donepezil Analogues As Cholinesterase And Bace1 Inhibitors, Keith D. Green, Marina Y. Fosso, Sylvie Garneau-Tsodikova
Pharmaceutical Sciences Faculty Publications
A series of 22 donepezil analogues were synthesized through alkylation/benzylation and compared to donepezil and its 6-O-desmethyl adduct. All the compounds were found to be potent inhibitors of both acetylcholinesterase (AChE) and butyrylcholinesterase (BChE), two enzymes responsible for the hydrolysis of the neurotransmitter acetylcholine in Alzheimer’s disease patient brains. Many of them displayed lower inhibitory concentrations of EeAChE (IC50 = 0.016 ± 0.001 µM to 0.23 ± 0.03 µM) and EfBChE (IC50 = 0.11 ± 0.01 µM to 1.3 ± 0.2 µM) than donepezil. One of the better compounds was tested against HsAChE and was …
Interfering With Dna Decondensation As A Strategy Against Mycobacteria, Enzo M. Scutigliani, Edwin R. Scholl, Anita E. Grootemaat, Sadhana Khanal, Jakub A. Kochan, Przemek M. Krawczyk, Eric A. Reits, Atefeh Garzan, Huy X. Ngo, Keith D. Green, Sylvie Garneau-Tsodikova, Jan M. Ruijter, Henk A. Van Veen, Nicole N. Van Der Wel
Interfering With Dna Decondensation As A Strategy Against Mycobacteria, Enzo M. Scutigliani, Edwin R. Scholl, Anita E. Grootemaat, Sadhana Khanal, Jakub A. Kochan, Przemek M. Krawczyk, Eric A. Reits, Atefeh Garzan, Huy X. Ngo, Keith D. Green, Sylvie Garneau-Tsodikova, Jan M. Ruijter, Henk A. Van Veen, Nicole N. Van Der Wel
Pharmaceutical Sciences Faculty Publications
Tuberculosis is once again a major global threat, leading to more than 1 million deaths each year. Treatment options for tuberculosis patients are limited, expensive and characterized by severe side effects, especially in the case of multidrug-resistant forms. Uncovering novel vulnerabilities of the pathogen is crucial to generate new therapeutic strategies. Using high resolution microscopy techniques, we discovered one such vulnerability of Mycobacterium tuberculosis. We demonstrate that the DNA of M. tuberculosis can condense under stressful conditions such as starvation and antibiotic treatment. The DNA condensation is reversible and specific for viable bacteria. Based on these observations, we hypothesized …
Abcg5 And Abcg8: More Than A Defense Against Xenosterols, Shailendra B. Patel, Gregory A. Graf, Ryan E. Temel
Abcg5 And Abcg8: More Than A Defense Against Xenosterols, Shailendra B. Patel, Gregory A. Graf, Ryan E. Temel
Pharmaceutical Sciences Faculty Publications
The elucidation of the molecular basis of the rare disease, sitosterolemia, has revolutionized our mechanistic understanding of how dietary sterols are excreted and how cholesterol is eliminated from the body. Two proteins, ABCG5 and ABCG8, encoded by the sitosterolemia locus, work as obligate dimers to pump sterols out of hepatocytes and enterocytes. ABCG5/ABCG8 are key in regulating whole-body sterol trafficking, by eliminating sterols via the biliary tree as well as the intestinal tract. Importantly, these transporters keep xenosterols from accumulating in the body. The sitosterolemia locus has been genetically associated with lipid levels and downstream atherosclerotic disease, as well as …
Matrix Metalloproteinase-Mediated Blood-Brain Barrier Dysfunction In Epilepsy, Ralf G. Rempe, Anika M. S. Hartz, Emma L. B. Soldner, Brent S. Sokola, Satya R. Alluri, Erin L. Abner, Richard J. Kryscio, Anton Pekcec, Juli Schlichtiger, Björn Bauer
Matrix Metalloproteinase-Mediated Blood-Brain Barrier Dysfunction In Epilepsy, Ralf G. Rempe, Anika M. S. Hartz, Emma L. B. Soldner, Brent S. Sokola, Satya R. Alluri, Erin L. Abner, Richard J. Kryscio, Anton Pekcec, Juli Schlichtiger, Björn Bauer
Pharmaceutical Sciences Faculty Publications
The blood-brain barrier is dysfunctional in epilepsy, thereby contributing to seizure genesis and resistance to antiseizure drugs. Previously, several groups reported that seizures increase brain glutamate levels, which leads to barrier dysfunction. One critical component of barrier dysfunction is brain capillary leakage. Based on our preliminary data, we hypothesized that glutamate released during seizures mediates an increase in matrix-metalloproteinase (MMP) expression and activity levels, thereby contributing to barrier leakage. To test this hypothesis, we exposed isolated brain capillaries from male Sprague Dawley rats to glutamate ex vivo and used an in vivo/ex vivo approach of isolated brain capillaries …
Amine Containing Analogs Of Sulindac For Cancer Prevention, Bini Mathew, Judith V. Hobrath, Michele C. Connelly, R. Kiplin Guy, Robert C. Reynolds
Amine Containing Analogs Of Sulindac For Cancer Prevention, Bini Mathew, Judith V. Hobrath, Michele C. Connelly, R. Kiplin Guy, Robert C. Reynolds
Pharmaceutical Sciences Faculty Publications
Background:
Sulindac belongs to the chemically diverse family of Non-Steroidal Anti-Inflammatory Drugs (NSAIDs) that effectively prevent adenomatous colorectal polyps and colon cancer, especially in patients with familial adenomatous polyposis. Sulindac sulfide amide (SSA), an amide analog of sulindac sulfide, shows insignificant COX-related activity and toxicity while enhancing anticancer activity in vitro and demonstrating in vivo xenograft activity.
Objective:
Develop structure-activity relationships in the sulindac amine series and identify analogs with promising anticancer activities.
Method:
A series of sulindac amine analogs were designed and synthesized and then further modified in a “libraries from libraries” approach to produce amide, sulfonamide and N,N-disubstituted …