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Articles 1 - 5 of 5
Full-Text Articles in Congenital, Hereditary, and Neonatal Diseases and Abnormalities
Canine Rd3 Mutation Establishes Rod-Cone Dysplasia Type 2 (Rcd2) As Ortholog Of Human And Murine Rd3, Anna V. Kukekova, Orly Goldstein, Jennifer L. Johnson, Malcolm A. Richardson, Susan E. Pearce-Kelling, Anand Swaroop, James S. Friedman, Gustavo D. Aguirre, Gregory M. Acland
Canine Rd3 Mutation Establishes Rod-Cone Dysplasia Type 2 (Rcd2) As Ortholog Of Human And Murine Rd3, Anna V. Kukekova, Orly Goldstein, Jennifer L. Johnson, Malcolm A. Richardson, Susan E. Pearce-Kelling, Anand Swaroop, James S. Friedman, Gustavo D. Aguirre, Gregory M. Acland
Gustavo D. Aguirre, VMD, PhD
Rod-cone dysplasia type 2 (rcd2) is an autosomal recessive disorder that segregates in collie dogs. Linkage disequilibrium and meiotic linkage mapping were combined to take advantage of population structure within this breed and to fine map rcd2 to a 230-kb candidate region that included the gene C1orf36 responsible for human and murine rd3, and within which all affected dogs were homozygous for one haplotype. In one of three identified canine retinal RD3 splice variants, an insertion was found that cosegregates with rcd2 and is predicted to alter the last 61 codons of the normal open reading frame and further extend …
Canine And Human Visual Cortex Intact And Responsive Despite Early Retinal Blindness From Rpe65 Mutation, Geoffrey K. Aguirre, András M. Komáromy, Artur V. Cideciyan, David H. Brainard, Tomas S. Aleman, Alejandro J. Roman, Brian B. Avants, James C. Gee, Marc Korczykowski, William W. Hauswirth, Gregory M. Acland, Gustavo D. Aguirre, Samuel G. Jacobson
Canine And Human Visual Cortex Intact And Responsive Despite Early Retinal Blindness From Rpe65 Mutation, Geoffrey K. Aguirre, András M. Komáromy, Artur V. Cideciyan, David H. Brainard, Tomas S. Aleman, Alejandro J. Roman, Brian B. Avants, James C. Gee, Marc Korczykowski, William W. Hauswirth, Gregory M. Acland, Gustavo D. Aguirre, Samuel G. Jacobson
Gustavo D. Aguirre, VMD, PhD
Background RPE65 is an essential molecule in the retinoid-visual cycle, and RPE65 gene mutations cause the congenital human blindness known as Leber congenital amaurosis (LCA). Somatic gene therapy delivered to the retina of blind dogs with an RPE65 mutation dramatically restores retinal physiology and has sparked international interest in human treatment trials for this incurable disease. An unanswered question is how the visual cortex responds after prolonged sensory deprivation from retinal dysfunction. We therefore studied the cortex of RPE65-mutant dogs before and after retinal gene therapy. Then, we inquired whether there is visual pathway integrity and responsivity in adult humans …
Cloning Of Canine Galactokinase (Galk1) And Evaluation As A Candidate Gene For Hereditary Cataracts In Labrador Retrievers, Duska J. Sidjanin, John L. Mcelwee, Brian Miller, Gustavo D. Aguirre
Cloning Of Canine Galactokinase (Galk1) And Evaluation As A Candidate Gene For Hereditary Cataracts In Labrador Retrievers, Duska J. Sidjanin, John L. Mcelwee, Brian Miller, Gustavo D. Aguirre
Gustavo D. Aguirre, VMD, PhD
We identified a pedigree of Labrador retrievers (LR) that develop hereditary cataracts between 6 and 18 months of age. In humans, galactokinase deficiency is an autosomal recessive disorder characterized by juvenile onset of cataracts.1 In order to evaluate GALK1 as a candidate gene, we cloned and sequenced the canine GALK1 gene and tested a single nucleotide polymorphism (SNP) in the gene for segregation with cataracts in the LR pedigree.
Blinded By The Light: Retinal Phototoxicity In The Context Of Safety Studies, Maria Cristina De Vera Mudry, Sven Kronenberg, Shun-Ichiro Komatsu, Gustavo D. Aguirre
Blinded By The Light: Retinal Phototoxicity In The Context Of Safety Studies, Maria Cristina De Vera Mudry, Sven Kronenberg, Shun-Ichiro Komatsu, Gustavo D. Aguirre
Gustavo D. Aguirre, VMD, PhD
No abstract provided.
Canine Multifocal Retinopathy In The Australian Shepherd: A Case Report, Ingo Hoffmann, Karina E. Guziewicz, Barbara Zangerl, Gustavo D. Aguirre, Christian Y. Mardin
Canine Multifocal Retinopathy In The Australian Shepherd: A Case Report, Ingo Hoffmann, Karina E. Guziewicz, Barbara Zangerl, Gustavo D. Aguirre, Christian Y. Mardin
Gustavo D. Aguirre, VMD, PhD
A 1-year-old Australian Shepherd (AS) was presented for a routine hereditary eye examination. During the examination multiple raised, brown to orange lesions were noted in the fundus, which could not be attributed to a known retinal disease in this breed. As they clinically most closely resembled canine multifocal retinopathy (cmr) and no indication of an acquired condition was found, genetic tests for BEST1 gene mutations were performed. These showed the dog to be homozygous for the cmr1 (C73T/R25X) gene defect. Furthermore, ultrasound (US), electroretinography (ERG), and optical coherence tomography were performed, confirming changes typical for cmr. Subsequently, the AS pedigree …