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Caenorhabditis Briggsae Methods, Scott Everet Baird, Helen M. Chamberlin
Caenorhabditis Briggsae Methods, Scott Everet Baird, Helen M. Chamberlin
Biological Sciences Faculty Publications
Caenorhabditis briggsae is being developed in parallel to C. elegans as a model system, primarily for the study of evolution. Like C. elegans, C. briggsae is a protandrous hermaphrodite and like C. elegans, its genome has been sequenced. From this point, these two model systems diverge. The development, behavior, and physiology of C. elegans have been characterized through tens of thousands of genetic and molecular studies. Genetic and molecular characterizations of C. briggsae are relatively few. Experimental resources in C. elegans include a high density recombination map that is well integrated with the genome sequence. The C. briggsae …
Screening Assay For Inhibitors Of Severe Acute Respiratory Syndrome (Sars) Using Seldi-Tof Mass Spectrometry, Khalid M. Elased, Mariana Morris
Screening Assay For Inhibitors Of Severe Acute Respiratory Syndrome (Sars) Using Seldi-Tof Mass Spectrometry, Khalid M. Elased, Mariana Morris
Pharmacology and Toxicology Faculty Publications
Mass spectrometric methods directed to screening libraries of compounds for agents that inhibit entry of Severe Acute Respiratory Syndrome (SARS) coronavirus (CoV) into cells are provided, along with methods for comparatively evaluating inhibitors of the SARS CoV.
Soluble Amyloid Oligomers Increase Bilayer Conductance By Altering Dielectric Structure, Yuri Sokolov, J. Ashot Kozak, Rakez Kayed, Alexandr Chanturiya, Charles G. Glabe, James E. Hall
Soluble Amyloid Oligomers Increase Bilayer Conductance By Altering Dielectric Structure, Yuri Sokolov, J. Ashot Kozak, Rakez Kayed, Alexandr Chanturiya, Charles G. Glabe, James E. Hall
Neuroscience, Cell Biology & Physiology Faculty Publications
The amyloid hypothesis of Alzheimer's toxicity has undergone a resurgence with increasing evidence that it is not amyloid fibrils but a smaller oligomeric species that produces the deleterious results. In this paper we address the mechanism of this toxicity. Only oligomers increase the conductance of lipid bilayers and patch-clamped mammalian cells, producing almost identical current-voltage curves in both preparations. Oligomers increase the conductance of the bare bilayer, the cation conductance induced by nonactin, and the anion conductance induced by tetraphenyl borate. Negative charge reduces the sensitivity of the membrane to amyloid, but cholesterol has little effect. In contrast, the area …
Essential Elements Of A Defense-Review Of Dna Testing Results, Dan E. Krane
Essential Elements Of A Defense-Review Of Dna Testing Results, Dan E. Krane
Biological Sciences Faculty Publications
No abstract provided.
Combining An Autologous Peripheral Nervous System “Bridge” And Matrix Modification By Chondroitinase Allows Robust, Functional Regeneration Beyond A Hemisection Lesion Of The Adult Rat Spinal Cord, John D. Houle, Veronica J. Tom, Debra A. Mayes, Gail Wagoner, Napoleon Phillips, Jerry Silver
Combining An Autologous Peripheral Nervous System “Bridge” And Matrix Modification By Chondroitinase Allows Robust, Functional Regeneration Beyond A Hemisection Lesion Of The Adult Rat Spinal Cord, John D. Houle, Veronica J. Tom, Debra A. Mayes, Gail Wagoner, Napoleon Phillips, Jerry Silver
Neuroscience, Cell Biology & Physiology Faculty Publications
Chondroitinase-ABC (ChABC) was applied to a cervical level 5 (C5) dorsal quadrant aspiration cavity of the adult rat spinal cord to degrade the local accumulation of inhibitory chondroitin sulfate proteoglycans. The intent was to enhance the extension of regenerated axons from the distal end of a peripheral nerve (PN) graft back into the C5 spinal cord, having bypassed a hemisection lesion at C3. ChABC-treated rats showed (1) gradual improvement in the range of forelimb swing during locomotion, with some animals progressing to the point of raising their forelimb above the nose, (2) an enhanced ability to use the forelimb in …
Substratum As A Driver Of Variation In Periphyton Chlorophyll And Productivity In Lakes, Yvonne Vadeboncoeur
Substratum As A Driver Of Variation In Periphyton Chlorophyll And Productivity In Lakes, Yvonne Vadeboncoeur
Biological Sciences Faculty Publications
Quantifying periphyton (attached algal) contributions to autotrophic production in lakes is confounded by properties of substratum that affect community biomass (as chlorophyll content) and productivity. We compared chlorophyll content and productivity of natural algal communities (phytoplankton, epipelon, epilithon, epixylon, and epiphyton) experiencing high (>10%) incident radiation in lakes in the US, Greenland, and Quebec, Canada. Chlorophyll content and productivity differed significantly among regions, but they also differed consistently among communities independent of region. Chlorophyll content of periphyton on hard substrata (rocks and wood) was positively related to water-column total P (TP), whereas chlorophyll content of algae on sediment (epipelon) …
Simultaneous Measurement Of Water Volume And Ph In Single Cells Using Bcecf And Fluorescence Imaging Microscopy, Francisco J. Alvarez-Leefmans, José J. Herrera-Pérez, Martín S. Márquez, Victor M. Blanco
Simultaneous Measurement Of Water Volume And Ph In Single Cells Using Bcecf And Fluorescence Imaging Microscopy, Francisco J. Alvarez-Leefmans, José J. Herrera-Pérez, Martín S. Márquez, Victor M. Blanco
Pharmacology and Toxicology Faculty Publications
Regulation and maintenance of cell water volume and intracellular pH (pHi) are vital functions that are interdependent; cell volume regulation affects, and is in turn affected by, changes in pHi. Disruption of either function underlies various pathologies. To study the interaction and kinetics of these two mechanisms, we developed and validated a quantitative fluorescence imaging microscopy method to measure simultaneous changes in pHi and volume in single cells loaded with the fluorescent probe BCECF. CWV is measured at the excitation isosbestic wavelength, whereas pHiis determined ratiometrically. The method has a time resolution of …