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Pharmacy and Pharmaceutical Sciences

University of Kentucky

2018

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Full-Text Articles in Medicine and Health Sciences

Mutants Of Cocaine Esterase, Donald Landry, Chang-Guo Zhan Dec 2018

Mutants Of Cocaine Esterase, Donald Landry, Chang-Guo Zhan

Pharmaceutical Sciences Faculty Patents

Provided are mutant cocaine esterase polypeptides and PEGylated formulations thereof.


Multifunctional Donepezil Analogues As Cholinesterase And Bace1 Inhibitors, Keith D. Green, Marina Y. Fosso, Sylvie Garneau-Tsodikova Dec 2018

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 …


Canvass: A Crowd-Sourced, Natural-Product Screening Library For Exploring Biological Space, Sara E. Kearney, Gergely ZahoráNszky-KőHalmi, Kyle R. Brimacombe, Mark J. Henderson, Caitlin Lynch, Tongan Zhao, Kanny K. Wan, Zina Itkin, Christopher Dillon, Min Shen, Dorian M. Cheff, Tobie D. Lee, Danielle Bougie, Ken Cheng, Nathan P. Coussens, Dorjbal Dorjsuren, Richard T. Eastman, Ruili Huang, Michael J. Iannotti, Surendra Karavadhi, Carleen Klumpp-Thomas, Jacob S. Roth, Srilatha Sakamuru, Wei Sun, Steven A. Titus, Adam Yasgar, Ya-Qin Zhang, Jinghua Zhao, Rodrigo B. Andrade, M. Kevin Brown, Robert B. Grossman Dec 2018

Canvass: A Crowd-Sourced, Natural-Product Screening Library For Exploring Biological Space, Sara E. Kearney, Gergely ZahoráNszky-KőHalmi, Kyle R. Brimacombe, Mark J. Henderson, Caitlin Lynch, Tongan Zhao, Kanny K. Wan, Zina Itkin, Christopher Dillon, Min Shen, Dorian M. Cheff, Tobie D. Lee, Danielle Bougie, Ken Cheng, Nathan P. Coussens, Dorjbal Dorjsuren, Richard T. Eastman, Ruili Huang, Michael J. Iannotti, Surendra Karavadhi, Carleen Klumpp-Thomas, Jacob S. Roth, Srilatha Sakamuru, Wei Sun, Steven A. Titus, Adam Yasgar, Ya-Qin Zhang, Jinghua Zhao, Rodrigo B. Andrade, M. Kevin Brown, Robert B. Grossman

Chemistry Faculty Publications

Natural products and their derivatives continue to be wellsprings of nascent therapeutic potential. However, many laboratories have limited resources for biological evaluation, leaving their previously isolated or synthesized compounds largely or completely untested. To address this issue, the Canvass library of natural products was assembled, in collaboration with academic and industry researchers, for quantitative high-throughput screening (qHTS) across a diverse set of cell-based and biochemical assays. Characterization of the library in terms of physicochemical properties, structural diversity, and similarity to compounds in publicly available libraries indicates that the Canvass library contains many structural elements in common with approved drugs. The …


Morphometric Characteristics And Time To Hatch As Efficacious Indicators For Potential Nanotoxicity Assay In Zebrafish, Seyed-Mohammadreza Samaee, Nafiseh Manteghi, Robert A. Yokel, Mohammad Reza Mohajeri-Tehrani Dec 2018

Morphometric Characteristics And Time To Hatch As Efficacious Indicators For Potential Nanotoxicity Assay In Zebrafish, Seyed-Mohammadreza Samaee, Nafiseh Manteghi, Robert A. Yokel, Mohammad Reza Mohajeri-Tehrani

Pharmaceutical Sciences Faculty Publications

Although the effects of nano-sized titania (nTiO2) on hatching events (change in hatching time and total hatching) in zebrafish have been reported, additional consequences of nTiO2 exposure (i.e., the effects of nTiO2-induced changes in hatching events and morphometric parameters on embryo-larvae development and survivability) have not been reported. To address this knowledge gap, embryos 4 h postfertilization were exposed to nTiO2 (0, 0.01, 10, and 1000 μg/mL) for 220 h. Hatching rate (58, 82, and 106 h postexposure [hpe]), survival rate (8 times from 34 to 202 hpe), and 21 morphometric characteristics (8 times …


Pharmacy Staff Perspectives On Alcohol And Medication Interaction Prevention Among Older Rural Adults, Faika Zanjani, Hannah Allen, Rachel Vickers Smith, Demetra Antimisiaris, Nancy E. Schoenberg, Catherine A. Martin, Richard Clayton Nov 2018

Pharmacy Staff Perspectives On Alcohol And Medication Interaction Prevention Among Older Rural Adults, Faika Zanjani, Hannah Allen, Rachel Vickers Smith, Demetra Antimisiaris, Nancy E. Schoenberg, Catherine A. Martin, Richard Clayton

Behavioral Science Faculty Publications

Older adults are at high risk for alcohol and medication interactions (AMI). Pharmacies have the potential to act as ideal locations for AMI education, as pharmacy staff play an important role in the community. This study examined the perspectives of pharmacy staff on AMI prevention programming messaging, potential barriers to and facilitators of older adult participation in such programming, and dissemination methods for AMI prevention information. Flyers, telephone calls, and site visits were used to recruit 31 pharmacy staff members who participated in semistructured interviews. A content analysis of interview transcriptions was conducted to identify major themes, categories, and subcategories. …


Prescription And Over-The-Counter Medication Record Integration: A Holistic Patient-Centered Approach, Clark D. Kebodeaux Nov 2018

Prescription And Over-The-Counter Medication Record Integration: A Holistic Patient-Centered Approach, Clark D. Kebodeaux

Pharmacy Practice and Science Faculty Publications

Objective: Nonprescription or over-the-counter (OTC) medications play a crucial role in a patient’s ability to make choices to manage his or her own health care. Often these nonprescription choices are unknown to health care practitioners and thus are often not included as part of patients’ health records. The exclusion of these therapies can pose risks to patient safety. There is a significant need to address the capture of OTC medication use in both the physician and pharmacy electronic health records (EHRs) and during the practitionerepatient medication history and reconciliation process.

Data sources: On October 26, 2016, the National Association of …


Blocking Drug Activation As A Therapeutic Strategy To Attenuate Acute Toxicity And Physiological Effects Of Heroin, Ting Zhang, Xirong Zheng, Kyungbo Kim, Fang Zheng, Chang-Guo Zhan Nov 2018

Blocking Drug Activation As A Therapeutic Strategy To Attenuate Acute Toxicity And Physiological Effects Of Heroin, Ting Zhang, Xirong Zheng, Kyungbo Kim, Fang Zheng, Chang-Guo Zhan

Molecular Modeling and Biopharmaceutical Center Faculty Publications

Heroin is a growing national crisis in America. There is an increasing frequency of heroin overdoses. All of the currently used therapeutic approaches to treatment of heroin abuse and other opioid drugs of abuse focus on antagonizing a brain receptor (particularly µ-opiate receptors). However, it has been known that the therapeutic use of certain µ-opiate receptor antagonist may actually increase heroin overdose. Once overdosed, heroin addicts may continue to get overdosed again and again until fatal. Here we report our design and validation of a novel therapeutic strategy targeting heroin activation based on our analysis of the chemical transformation and …


Gaw20: Methods And Strategies For The New Frontiers Of Epigenetics And Pharmacogenomics, Nathan L. Tintle, David W. Fardo, Marzia De Andrade, Stella Aslibekyan, Julia N. Bailey, Justo Lorenzo Bermejo, Rita M. Cantor, Saurabh Ghosh, Philip Melton, Xuexua Wang, Jean W. Maccluer, Laura Almasy Sep 2018

Gaw20: Methods And Strategies For The New Frontiers Of Epigenetics And Pharmacogenomics, Nathan L. Tintle, David W. Fardo, Marzia De Andrade, Stella Aslibekyan, Julia N. Bailey, Justo Lorenzo Bermejo, Rita M. Cantor, Saurabh Ghosh, Philip Melton, Xuexua Wang, Jean W. Maccluer, Laura Almasy

Biostatistics Faculty Publications

GAW20 provided a platform for developing and evaluating statistical methods to analyze human lipid-related phenotypes, DNA methylation, and single-nucleotide markers in a study involving a pharmaceutical intervention. In this article, we present an overview of the data sets and the contributions analyzing these data. The data, donated by the Genetics of Lipid Lowering Drugs and Diet Network (GOLDN) investigators, included data from 188 families (N = 1105) which included genome-wide DNA methylation data before and after a 3-week treatment with fenofibrate, single-nucleotide polymorphisms, metabolic syndrome components before and after treatment, and a variety of covariates. The contributions from individual …


Methods For Treating Neuropathic Pain, Joseph R. Holtman, Peter Anthony Crooks, Linda Phyliss Dwoskin, Michael J. Mcintosh, Elzbieta Pogonowska Wala Sep 2018

Methods For Treating Neuropathic Pain, Joseph R. Holtman, Peter Anthony Crooks, Linda Phyliss Dwoskin, Michael J. Mcintosh, Elzbieta Pogonowska Wala

Pharmaceutical Sciences Faculty Patents

Provided are methods for using bis-quaternary ammonium compounds to treat inflammatory pain, neuropathic pain and nociceptive pain.


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 Sep 2018

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 …


Bioinformatic Analysis Of Endogenous And Exogenous Small Rnas On Lipoproteins, Ryan M. Allen, Shilin Zhao, Marisol A. Ramirez Solano, Wanying Zhu, Danielle L. Michell, Yuhuan Wang, Yu Shyr, Praveen Sethupathy, Macrae F. Linton, Gregory A. Graf, Quanhu Sheng, Kasey C. Vickers Aug 2018

Bioinformatic Analysis Of Endogenous And Exogenous Small Rnas On Lipoproteins, Ryan M. Allen, Shilin Zhao, Marisol A. Ramirez Solano, Wanying Zhu, Danielle L. Michell, Yuhuan Wang, Yu Shyr, Praveen Sethupathy, Macrae F. Linton, Gregory A. Graf, Quanhu Sheng, Kasey C. Vickers

Pharmaceutical Sciences Faculty Publications

To comprehensively study extracellular small RNAs (sRNA) by sequencing (sRNA-seq), we developed a novel pipeline to overcome current limitations in analysis entitled, “Tools for Integrative Genome analysis of Extracellular sRNAs (TIGER)”. To demonstrate the power of this tool, sRNA-seq was performed on mouse lipoproteins, bile, urine and livers. A key advance for the TIGER pipeline is the ability to analyse both host and non-host sRNAs at genomic, parent RNA and individual fragment levels. TIGER was able to identify approximately 60% of sRNAs on lipoproteins and >85% of sRNAs in liver, bile and urine, a significant advance compared to existing software. …


A Programme For Risk Assessment And Minimisation Of Progressive Multifocal Leukoencephalopathy Developed For Vedolizumab Clinical Trials, Asit Parikh, Kristin Stephens, Eugene Major, Irving Fox, Catherine Milch, Serap Sankoh, Michael H. Lev, James M. Provenzale, Jesse Shick, Mark Patti, Megan Mcauliffe, Joseph R. Berger, David B. Clifford Aug 2018

A Programme For Risk Assessment And Minimisation Of Progressive Multifocal Leukoencephalopathy Developed For Vedolizumab Clinical Trials, Asit Parikh, Kristin Stephens, Eugene Major, Irving Fox, Catherine Milch, Serap Sankoh, Michael H. Lev, James M. Provenzale, Jesse Shick, Mark Patti, Megan Mcauliffe, Joseph R. Berger, David B. Clifford

Neurology Faculty Publications

Introduction Over the past decade, the potential for drug-associated progressive multifocal leukoencephalopathy (PML) has become an increasingly important consideration in certain drug development programmes, particularly those of immunomodulatory biologics. Whether the risk of PML with an investigational agent is proven (e.g. extrapolated from relevant experience, such as a class effect) or merely theoretical, the serious consequences of acquiring PML require careful risk minimisation and assessment. No single standard for such risk minimisation exists. Vedolizumab is a recently developed monoclonal antibody to α4β7 integrin. Its clinical development necessitated a dedicated PML risk minimisation assessment as part of a global preapproval regulatory …


Cysteine Modifiers Suggest An Allosteric Inhibitory Site On The Cal Pdz Domain, Yu Zhao, Patrick R. Cushing, David C. Smithson, Maria Pellegrini, Alexandre A. Pletnev, Sahar Al-Ayyoubi, Andrew V. Grassetti, Scott A. Gerber, R. Kiplin Guy, Dean R. Madden Jul 2018

Cysteine Modifiers Suggest An Allosteric Inhibitory Site On The Cal Pdz Domain, Yu Zhao, Patrick R. Cushing, David C. Smithson, Maria Pellegrini, Alexandre A. Pletnev, Sahar Al-Ayyoubi, Andrew V. Grassetti, Scott A. Gerber, R. Kiplin Guy, Dean R. Madden

Pharmaceutical Sciences Faculty Publications

Protein–protein interactions have become attractive targets for both experimental and therapeutic interventions. The PSD-95/Dlg1/ZO-1 (PDZ) domain is found in a large family of eukaryotic scaffold proteins that plays important roles in intracellular trafficking and localization of many target proteins. Here, we seek inhibitors of the PDZ protein that facilitates post-endocytic degradation of the cystic fibrosis (CF) transmembrane conductance regulator (CFTR): the CFTR-associated ligand (CAL). We develop and validate biochemical screens and identify methyl-3,4-dephostatin (MD) and its analog ethyl-3,4-dephostatin (ED) as CAL PDZ inhibitors. Depending on conditions, MD can bind either covalently or non-covalently. Crystallographic and NMR data confirm that MD …


Analysis Of Student Performance Outcomes Using Virtual Dispensing Exercises, Sophia Brown, Clark D. Kebodeaux, Keith Sewell, Aric Schadler, Keenan Beaumont Jul 2018

Analysis Of Student Performance Outcomes Using Virtual Dispensing Exercises, Sophia Brown, Clark D. Kebodeaux, Keith Sewell, Aric Schadler, Keenan Beaumont

Pharmacy Practice and Science Presentations

The objective of this study was to compare performance outcomes between PY1 and PY2 students on an identical exercise required during their final objective structured clinical exam (OSCE).


Incidence Of Acute Kidney Injury Among Patients Treated With Piperacillin-Tazobactam Or Meropenem In Combination With Vancomycin, Wilbur Cliff Rutter, David S. Burgess Jul 2018

Incidence Of Acute Kidney Injury Among Patients Treated With Piperacillin-Tazobactam Or Meropenem In Combination With Vancomycin, Wilbur Cliff Rutter, David S. Burgess

Pharmacy Practice and Science Faculty Publications

Acute kidney injury (AKI) increases during empirical antimicrobial therapy with the combination of piperacillin-tazobactam (TZP) and vancomycin (VAN) compared to the number of incidences with monotherapy or the combination of cefepime and VAN. Limited data regarding the impact of meropenem (MEM) combined with VAN exist. This study examined the AKI incidence among patients treated with MEM plus VAN (MEM+VAN) or TZP+VAN. Data were collected from the University of Kentucky Center for Clinical and Translational Science Enterprise Data Trust from September 2007 through October 2015. Adults without previous renal disease who received MEM+VAN or TZP+VAN for at least 2 days were …


Self-Resistance During Muraymycin Biosynthesis: A Complementary Nucleotidyltransferase And Phosphotransferase With Identical Modification Sites And Distinct Temporal Order, Zheng Cui, Xia-Chang Wang, Xiaodong Liu, Anke Lemke, Stefan Koppermann, Christian Ducho, Jürgen Rohr, Jon S. Thorson, Steven G. Van Lanen Jul 2018

Self-Resistance During Muraymycin Biosynthesis: A Complementary Nucleotidyltransferase And Phosphotransferase With Identical Modification Sites And Distinct Temporal Order, Zheng Cui, Xia-Chang Wang, Xiaodong Liu, Anke Lemke, Stefan Koppermann, Christian Ducho, Jürgen Rohr, Jon S. Thorson, Steven G. Van Lanen

Pharmaceutical Sciences Faculty Publications

Muraymycins are antibacterial natural products from Streptomyces spp. that inhibit translocase I (MraY), which is involved in cell wall biosynthesis. Structurally, muraymycins consist of a 5′-C-glycyluridine (GlyU) appended to a 5″-amino-5″-deoxyribose (ADR), forming a disaccharide core that is found in several peptidyl nucleoside inhibitors of MraY. For muraymycins, the GlyU-ADR disaccharide is further modified with an aminopropyl-linked peptide to generate the simplest structures, annotated as the muraymycin D series. Two enzymes encoded in the muraymycin biosynthetic gene cluster, Mur29 and Mur28, were functionally assigned in vitro as a Mg·ATP-dependent nucleotidyltransferase and a Mg·ATP-dependent phosphotransferase, respectively, both modifying the …


Static Multiple-Sample Nmr Probe, Eric Jon Munson, Matthew Jon Nethercott Jun 2018

Static Multiple-Sample Nmr Probe, Eric Jon Munson, Matthew Jon Nethercott

Pharmaceutical Sciences Faculty Patents

A static solid-state nuclear magnetic resonance (NMR) probe includes multiple probe subunits each configured for holding a sample. Each probe subunit includes at least an associated magic angle spinning (MAS) module, a radio-frequency (RF) coil and an RF transmission line together defining an RF circuit. Each of the multiple probe subunits is individually held in a conducting housing isolating the RF circuit of the each of the probe subunit from any other of the plurality of probe subunits. The static solid-state NMR probe may include four or more probe subunits including four or more MAS modules.


Agronomic And Chemical Performance Of Field-Grown Tobacco Engineered For Triterpene And Methylated Triterpene Metabolism, Zuodong Jiang, Chase Kempinski, Santosh Kumar, Scott Kinison, Kristin Linscott, Eric Nybo, Sarah Janze, Constance Wood, Joseph Chappell Jun 2018

Agronomic And Chemical Performance Of Field-Grown Tobacco Engineered For Triterpene And Methylated Triterpene Metabolism, Zuodong Jiang, Chase Kempinski, Santosh Kumar, Scott Kinison, Kristin Linscott, Eric Nybo, Sarah Janze, Constance Wood, Joseph Chappell

Pharmaceutical Sciences Faculty Publications

Squalene is a linear intermediate to nearly all classes of triterpenes and sterols and is itself highly valued for its use in wide range of industrial applications. Another unique linear triterpene is botryococcene and its methylated derivatives generated by the alga Botryococcus braunii race B, which are progenitors to fossil fuel deposits. Production of these linear triterpenes was previously engineered into transgenic tobacco by introducing the key steps of triterpene metabolism into the particular subcellular compartments. In this study, the agronomic characteristics (height, biomass accumulation, leaf area), the photosynthetic capacity (photosynthesis rate, conductance, internal CO2 levels) and triterpene content …


Novel Tnf Receptor-1 Inhibitors Identified As Potential Therapeutic Candidates For Traumatic Brain Injury, Rachel K. Rowe, Jordan L. Harrison, Hongtao Zhang, Adam D. Bachstetter, David P. Hesson, Bruce F. O'Hara, Mark I. Greene, Jonathan Lifshitz May 2018

Novel Tnf Receptor-1 Inhibitors Identified As Potential Therapeutic Candidates For Traumatic Brain Injury, Rachel K. Rowe, Jordan L. Harrison, Hongtao Zhang, Adam D. Bachstetter, David P. Hesson, Bruce F. O'Hara, Mark I. Greene, Jonathan Lifshitz

Sanders-Brown Center on Aging Faculty Publications

Background: Traumatic brain injury (TBI) begins with the application of mechanical force to the head or brain, which initiates systemic and cellular processes that are hallmarks of the disease. The pathological cascade of secondary injury processes, including inflammation, can exacerbate brain injury-induced morbidities and thus represents a plausible target for pharmaceutical therapies. We have pioneered research on post-traumatic sleep, identifying that injury-induced sleep lasting for 6 h in brain-injured mice coincides with increased cortical levels of inflammatory cytokines, including tumor necrosis factor (TNF). Here, we apply post-traumatic sleep as a physiological bio-indicator of inflammation. We hypothesized the efficacy of novel …


In Vivo And In Vitro Studies Of Cry5b And Nicotinic Acetylcholine Receptor Agonist Anthelmintics Reveal A Powerful And Unique Combination Therapy Against Intestinal Nematode Parasites, Yan Hu, Melanie Miller, Bo Zhang, Thanh-Thanh Nguyen, Martin K. Nielsen, Raffi V. Aroian May 2018

In Vivo And In Vitro Studies Of Cry5b And Nicotinic Acetylcholine Receptor Agonist Anthelmintics Reveal A Powerful And Unique Combination Therapy Against Intestinal Nematode Parasites, Yan Hu, Melanie Miller, Bo Zhang, Thanh-Thanh Nguyen, Martin K. Nielsen, Raffi V. Aroian

Veterinary Science Faculty Publications

Background

The soil-transmitted nematodes (STNs) or helminths (hookworms, whipworms, large roundworms) infect the intestines of ~1.5 billion of the poorest peoples and are leading causes of morbidity worldwide. Only one class of anthelmintic or anti-nematode drugs, the benzimidazoles, is currently used in mass drug administrations, which is a dangerous situation. New anti-nematode drugs are urgently needed. Bacillus thuringiensis crystal protein Cry5B is a powerful, promising new candidate. Drug combinations, when properly made, are ideal for treating infectious diseases. Although there are some clinical trials using drug combinations against STNs, little quantitative and systemic work has been performed to define the …


Low-Fat Abiraterone Food Effect Is Of Little Consequence, Jill M. Kolesar, Glenn X. Liu May 2018

Low-Fat Abiraterone Food Effect Is Of Little Consequence, Jill M. Kolesar, Glenn X. Liu

Pharmacy Practice and Science Faculty Publications

No abstract provided.


Synaptic Phospholipids As A New Target For Cortical Hyperexcitability And E/I Balance In Psychiatric Disorders, Carine Thalman, Guilherme Horta, Lianyong Qiao, Heiko Endle, Irmgard Tegeder, Hong Cheng, Gregor Laube, Torfi Sigurdsson, Maria Jelena Hauser, Stefan Tenzer, Ute Distler, Junken Aoki, Andrew J. Morris, Gerd Geisslinger, Jochen Röper, Sergei Kirischuk, Heiko J. Luhmann, Konstantin Radyushkin, Robert Nitsch, Johannes Vogt May 2018

Synaptic Phospholipids As A New Target For Cortical Hyperexcitability And E/I Balance In Psychiatric Disorders, Carine Thalman, Guilherme Horta, Lianyong Qiao, Heiko Endle, Irmgard Tegeder, Hong Cheng, Gregor Laube, Torfi Sigurdsson, Maria Jelena Hauser, Stefan Tenzer, Ute Distler, Junken Aoki, Andrew J. Morris, Gerd Geisslinger, Jochen Röper, Sergei Kirischuk, Heiko J. Luhmann, Konstantin Radyushkin, Robert Nitsch, Johannes Vogt

Internal Medicine Faculty Publications

Lysophosphatidic acid (LPA) is a synaptic phospholipid, which regulates cortical excitation/inhibition (E/I) balance and controls sensory information processing in mice and man. Altered synaptic LPA signaling was shown to be associated with psychiatric disorders. Here, we show that the LPA-synthesizing enzyme autotaxin (ATX) is expressed in the astrocytic compartment of excitatory synapses and modulates glutamatergic transmission. In astrocytes, ATX is sorted toward fine astrocytic processes and transported to excitatory but not inhibitory synapses. This ATX sorting, as well as the enzymatic activity of astrocyte-derived ATX are dynamically regulated by neuronal activity via astrocytic glutamate receptors. Pharmacological and genetic ATX inhibition …


Abcg5 And Abcg8: More Than A Defense Against Xenosterols, Shailendra B. Patel, Gregory A. Graf, Ryan E. Temel May 2018

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 May 2018

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 …


Physiologically Based Pharmacokinetic Modeling Of Nanoceria Systemic Distribution In Rats Suggests Dose- And Route-Dependent Biokinetics, Ulrika Carlander, Tshepo Paulsen Moto, Anteneh Assefa Desalegn, Robert A. Yokel, Gunnar Johanson May 2018

Physiologically Based Pharmacokinetic Modeling Of Nanoceria Systemic Distribution In Rats Suggests Dose- And Route-Dependent Biokinetics, Ulrika Carlander, Tshepo Paulsen Moto, Anteneh Assefa Desalegn, Robert A. Yokel, Gunnar Johanson

Pharmaceutical Sciences Faculty Publications

Background: Cerium dioxide nanoparticles (nanoceria) are increasingly being used in a variety of products as catalysts, coatings, and polishing agents. Furthermore, their antioxidant properties make nanoceria potential candidates for biomedical applications. To predict and avoid toxicity, information about their biokinetics is essential. A useful tool to explore such associations between exposure and internal target dose is physiologically based pharmacokinetic (PBPK) modeling. The aim of this study was to test the appropriateness of our previously published PBPK model developed for intravenous (IV) administration when applied to various sizes of nanoceria and to exposure routes relevant for humans.

Methods: Experimental biokinetic data …


Differential Effects Of Linkers On The Activity Of Amphiphilic Tobramycin Antifungals, Marina Y. Fosso, Sanjib K. Shrestha, Nishad Thamban Chandrika, Emily K. Dennis, Keith D. Green, Sylvie Garneau-Tsodikova Apr 2018

Differential Effects Of Linkers On The Activity Of Amphiphilic Tobramycin Antifungals, Marina Y. Fosso, Sanjib K. Shrestha, Nishad Thamban Chandrika, Emily K. Dennis, Keith D. Green, Sylvie Garneau-Tsodikova

Pharmaceutical Sciences Faculty Publications

As the threat associated with fungal infections continues to rise and the availability of antifungal drugs remains a concern, it becomes obvious that the need to bolster the antifungal armamentarium is urgent. Building from our previous findings of tobramycin (TOB) derivatives with antifungal activity, we further investigate the effects of various linkers on the biological activity of these aminoglycosides. Herein, we analyze how thioether, sulfone, triazole, amide, and ether functionalities affect the antifungal activity of alkylated TOB derivatives against 22 Candida, Cryptococcus, and Aspergillus species. We also evaluate their impact on the hemolysis of murine erythrocytes and the …


Genetic Variants In Hsd17b3, Smad3, And Ipo11 Impact Circulating Lipids In Response To Fenofibrate In Individuals With Type 2 Diabetes, Daniel M. Rotroff, Sonja S. Pijut, Skylar W. Marvel, John R. Jack, Tammy M. Havener, Aurora Pujol, Agatha Schluter, Gregory A. Graf, Henry N. Ginsberg, Hetal S. Shah, He Gao, Mario-Luca Morieri, Alessandro Doria, Josyf C. Mychaleckyi, Howard L. Mcleod, John B. Buse, Michael J. Wagner, Alison A. Motsinger-Reif, Accord/Accordion Investigators Apr 2018

Genetic Variants In Hsd17b3, Smad3, And Ipo11 Impact Circulating Lipids In Response To Fenofibrate In Individuals With Type 2 Diabetes, Daniel M. Rotroff, Sonja S. Pijut, Skylar W. Marvel, John R. Jack, Tammy M. Havener, Aurora Pujol, Agatha Schluter, Gregory A. Graf, Henry N. Ginsberg, Hetal S. Shah, He Gao, Mario-Luca Morieri, Alessandro Doria, Josyf C. Mychaleckyi, Howard L. Mcleod, John B. Buse, Michael J. Wagner, Alison A. Motsinger-Reif, Accord/Accordion Investigators

Pharmaceutical Sciences Faculty Publications

Individuals with type 2 diabetes (T2D) and dyslipidemia are at an increased risk of cardiovascular disease. Fibrates are a class of drugs prescribed to treat dyslipidemia, but variation in response has been observed. To evaluate common and rare genetic variants that impact lipid responses to fenofibrate in statin‐treated patients with T2D, we examined lipid changes in response to fenofibrate therapy using a genomewide association study (GWAS). Associations were followed‐up using gene expression studies in mice. Common variants in SMAD3 and IPO11 were marginally associated with lipid changes in black subjects (P < 5 × 10‐6). Rare variant and gene expression changes …


Structure-Based Discovery Of Mpges-1 Inhibitors Suitable For Preclinical Testing In Wild-Type Mice As A New Generation Of Anti-Inflammatory Drugs, Kai Ding, Ziyuan Zhou, Shurong Hou, Yaxia Yuan, Shuo Zhou, Xirong Zheng, Jianzhong Chen, Charles D. Loftin, Fang Zheng, Chang-Guo Zhan Mar 2018

Structure-Based Discovery Of Mpges-1 Inhibitors Suitable For Preclinical Testing In Wild-Type Mice As A New Generation Of Anti-Inflammatory Drugs, Kai Ding, Ziyuan Zhou, Shurong Hou, Yaxia Yuan, Shuo Zhou, Xirong Zheng, Jianzhong Chen, Charles D. Loftin, Fang Zheng, Chang-Guo Zhan

Molecular Modeling and Biopharmaceutical Center Faculty Publications

Human mPGES-1 is recognized as a promising target for next generation of anti-inflammatory drugs without the side effects of currently available anti-inflammatory drugs, and various inhibitors have been reported in the literature. However, none of the reported potent inhibitors of human mPGES-1 has shown to be also a potent inhibitor of mouse or rat mPGES-1, which prevents using the well-established mouse/rat models of inflammation-related diseases for preclinical studies. Hence, despite of extensive efforts to design and discover various human mPGES-1 inhibitors, the promise of mPGES-1 as a target for the next generation of anti-inflammatory drugs has never been demonstrated in …


Risk Stratification For Bleeding Complications In Patients With Venous Thromboembolism: Application Of The Has-Bled Bleeding Score During The First 6 Months Of Anticoagulant Treatment, Joshua D. Brown, Amie J. Goodin, Gregory Y. H. Lip, Val R. Adams Mar 2018

Risk Stratification For Bleeding Complications In Patients With Venous Thromboembolism: Application Of The Has-Bled Bleeding Score During The First 6 Months Of Anticoagulant Treatment, Joshua D. Brown, Amie J. Goodin, Gregory Y. H. Lip, Val R. Adams

Pharmacy Practice and Science Faculty Publications

Background—The Hypertension, Abnormal renal/liver function, Stroke, Bleeding, Labile International Normalized Ratio (INR), Elderly, Drugs or alcohol use (HAS-BLED) score has strong predictive validity for major bleeding complications, but limited validation has been conducted in venous thromboembolism (VTE). This study evaluates the HAS-BLED score in a large cohort of VTE patients.

Methods and Results—A retrospective cohort of adults ≥ 18 years with primary diagnosis of VTE between January 1, 2010 and November 31, 2013 were identified in an insurance claims database. Patients were tracked until death, any bleed event, or end of study period. HAS-BLED score and components were …


The Role Of Human Dopamine Transporter In Neuroaids, Jun Zhu, Subramaniam Ananthan, Chang-Guo Zhan Mar 2018

The Role Of Human Dopamine Transporter In Neuroaids, Jun Zhu, Subramaniam Ananthan, Chang-Guo Zhan

Molecular Modeling and Biopharmaceutical Center Faculty Publications

HIV-associated neurocognitive disorder (HAND) remains highly prevalent in HIV infected individuals and represents a special group of neuropathological disorders, which are associated with HIV-1 viral proteins, such as transactivator of transcription (Tat) protein. Cocaine abuse increases the incidence of HAND and exacerbates its severity by enhancing viral replication. Perturbation of dopaminergic transmission has been implicated as a risk factor of HAND. The presynaptic dopamine (DA) transporter (DAT) is essential for DA homeostasis and dopaminergic modulation of the brain function including cognition. Tat and cocaine synergistically elevate synaptic DA levels by acting directly on human DAT (hDAT), ultimately leading to dysregulation …