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Articles 1 - 9 of 9
Full-Text Articles in Medicine and Health Sciences
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
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 …
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
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. …
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
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 …
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
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 …
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
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 …
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 …
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
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 …
Phaeophleospora Vochysiae Savi & Glienke Sp. Nov. Isolated From Vochysia Divergens Found In The Pantanal, Brazil, Produces Bioactive Secondary Metabolites, Daiani C. Savi, Khaled A. Shaaban, Francielly M. W. Gos, Larissa V. Ponomareva, Jon S. Thorson, Chirlei Glienke, Jürgen Rohr
Phaeophleospora Vochysiae Savi & Glienke Sp. Nov. Isolated From Vochysia Divergens Found In The Pantanal, Brazil, Produces Bioactive Secondary Metabolites, Daiani C. Savi, Khaled A. Shaaban, Francielly M. W. Gos, Larissa V. Ponomareva, Jon S. Thorson, Chirlei Glienke, Jürgen Rohr
Pharmaceutical Sciences Faculty Publications
Microorganisms associated with plants are highly diverse and can produce a large number of secondary metabolites, with antimicrobial, anti-parasitic and cytotoxic activities. We are particularly interested in exploring endophytes from medicinal plants found in the Pantanal, a unique and widely unexplored wetland in Brazil. In a bio-prospecting study, strains LGMF1213 and LGMF1215 were isolated as endophytes from Vochysia divergens, and by morphological and molecular phylogenetic analyses were characterized as Phaeophleospora vochysiae sp. nov. The chemical assessment of this species reveals three major compounds with high biological activity, cercoscosporin (1), isocercosporin (2) and the new compound 3-(sec-butyl)-6-ethyl-4,5-dihydroxy-2-methoxy-6-methylcyclohex-2-enone (3). …