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Corneal Injury Is Associated With Stromal And Vascular Alterations Within Cranial Dura Mater, Olga V. Glinskii, Vladislav V. Glinsky, Leike Xie, Filiz Bunyak, Vladimir V. Glinskii, Sunilima Sinha, Suneel Gupta, Renato V. Iozzo, Rajiv R. Mohan Apr 2023

Corneal Injury Is Associated With Stromal And Vascular Alterations Within Cranial Dura Mater, Olga V. Glinskii, Vladislav V. Glinsky, Leike Xie, Filiz Bunyak, Vladimir V. Glinskii, Sunilima Sinha, Suneel Gupta, Renato V. Iozzo, Rajiv R. Mohan

Department of Pathology, Anatomy, and Cell Biology Faculty Papers

The cornea and cranial dura mater share sensory innervation. This link raises the possibility that pathological impulses mediated by corneal injury may be transmitted to the cranial dura, trigger dural perivascular/connective tissue nociceptor responses, and induce vascular and stromal alterations affecting dura mater blood and lymphatic vessel functionality. In this study, using a mouse model, we demonstrate for the first time that two weeks after the initial insult, alkaline injury to the cornea leads to remote pathological changes within the coronal suture area of the dura mater. Specifically, we detected significant pro-fibrotic changes in the dural stroma, as well as …


Glucose Uptake By Glut1 In Photoreceptors Is Essential For Outer Segment Renewal And Rod Photoreceptor Survival, Lauren L. Daniele, John Y.S. Han, Ivy S Samuels, Ravikiran Komirisetty, Nikhil Mehta, Jessica L Mccord, Minzhong Yu, Yekai Wang, Kathleen Boesze-Battaglia, Brent A Bell, Jianhai Du, Neal S Peachey, Nancy J. Philp Aug 2022

Glucose Uptake By Glut1 In Photoreceptors Is Essential For Outer Segment Renewal And Rod Photoreceptor Survival, Lauren L. Daniele, John Y.S. Han, Ivy S Samuels, Ravikiran Komirisetty, Nikhil Mehta, Jessica L Mccord, Minzhong Yu, Yekai Wang, Kathleen Boesze-Battaglia, Brent A Bell, Jianhai Du, Neal S Peachey, Nancy J. Philp

Department of Pathology, Anatomy, and Cell Biology Faculty Papers

Photoreceptors consume glucose supplied by the choriocapillaris to support phototransduction and outer segment (OS) renewal. Reduced glucose supply underlies photoreceptor cell death in inherited retinal degeneration and age-related retinal disease. We have previously shown that restricting glucose transport into the outer retina by conditional deletion of Slc2a1 encoding GLUT1 resulted in photoreceptor loss and impaired OS renewal. However, retinal neurons, glia, and the retinal pigment epithelium play specialized, synergistic roles in metabolite supply and exchange, and the cell-specific map of glucose uptake and utilization in the retina is incomplete. In these studies, we conditionally deleted Slc2a1 in a pan-retinal or …


Simultaneous Brain And Intramedullary Spinal Abscesses In A Patient With Streptococcus Intermedius Infection, David P. Friedman, Joseph Desimone Jr, Aaron Christensen, Matthew Pettengill Nov 2021

Simultaneous Brain And Intramedullary Spinal Abscesses In A Patient With Streptococcus Intermedius Infection, David P. Friedman, Joseph Desimone Jr, Aaron Christensen, Matthew Pettengill

Department of Pathology, Anatomy, and Cell Biology Faculty Papers

A male patient in his thirties presented to the hospital with meningismus and altered mental status. Cerebrospinal fluid (CSF) analysis confirmed meningitis, but no microorganisms were identified. Head imaging (MRI) revealed multiple brain abscesses. Surgically-collected brain specimens revealed Gram-positive cocci and subsequently grew Streptococcus intermedius. MRI of the thoracic spine subsequently also identified an intramedullary spinal abscess. While brain abscesses and spinal abscesses caused by S. intermedius have been previously reported, the extent of disseminated disease in the patient was noteworthy.


Biochemical Enrichment And Biophysical Characterization Of A Taste Receptor For L-Arginine From The Catfish, Ictalurus Puntatus., William Grosvenor, Yuri Kaulin, Andrew I Spielman, Douglas L Bayley, D Lynn Kalinoski, John H Teeter, Joseph G Brand Jul 2004

Biochemical Enrichment And Biophysical Characterization Of A Taste Receptor For L-Arginine From The Catfish, Ictalurus Puntatus., William Grosvenor, Yuri Kaulin, Andrew I Spielman, Douglas L Bayley, D Lynn Kalinoski, John H Teeter, Joseph G Brand

Department of Pathology, Anatomy, and Cell Biology Faculty Papers

BACKGROUND: The channel catfish, Ictalurus punctatus, is invested with a high density of cutaneous taste receptors, particularly on the barbel appendages. Many of these receptors are sensitive to selected amino acids, one of these being a receptor for L-arginine (L-Arg). Previous neurophysiological and biophysical studies suggested that this taste receptor is coupled directly to a cation channel and behaves as a ligand-gated ion channel receptor (LGICR). Earlier studies demonstrated that two lectins, Ricinus communis agglutinin I (RCA-I) and Phaseolus vulgaris Erythroagglutinin (PHA-E), inhibited the binding of L-Arg to its presumed receptor sites, and that PHA-E inhibited the L-Arg-stimulated ion conductance …