Article
Biotechnology & Applied Microbiology
Vanessa A. Raphtis, Dhruv Sharma, Sichao Wang, Jae Y. Kim, Amanda L. Jacobson, Christine D. Harman, Andras M. Komaromy
Summary: This study revealed a possible relationship between the G661R missense mutation in the ADAMTS10 gene and ocular pulse amplitude (OPA) in a canine model of open-angle glaucoma. Dogs with the mutation displayed higher intraocular pressure (IOP) and lower OPA compared to normal dogs. The findings suggest that OPA may be a valuable clinical tool for assessing ocular stiffness and susceptibility to elevated IOP.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2023)
Article
Veterinary Sciences
Richard A. A. Pytak, Christopher G. G. Pirie, Christine D. D. Harman, Amanda L. L. Anderson, Shay Xuejing Yao, Andras M. Komaromy
Summary: This study aimed to evaluate the anterior segment angiographic findings in hypertensive ADAMTS10-open-angle glaucoma (ADAMTS10-OAG) eyes compared to normotensive control eyes. The results showed that the time to onset of all angiographic phases was significantly prolonged, while the time to onset of sodium fluorescein (SF) leakage into the aqueous humor was significantly reduced in glaucomatous eyes. Only glaucomatous eyes demonstrated evidence of SF stromal leakage. Multiple linear regression analysis indicated that glaucoma was not predictive of the time to onset of any angiographic phase or leakage, but pulse was a significant factor contributing to the severity of aqueous humor leakage.
VETERINARY OPHTHALMOLOGY
(2023)
Article
Ophthalmology
Brian S. Cole, Harini V. Gudiseva, Maxwell Pistilli, Rebecca Salowe, Caitlin P. McHugh, Michael C. Zody, Venkata R. M. Chavali, Gui Shuang Ying, Jason H. Moore, Joan M. O'Brien
Summary: This study examines the association of autosomal ancestry with POAG risk in a large cohort of self-identified African Americans. The results show that a higher degree of African ancestry is associated with an increased risk of POAG. Additionally, it is found that both known POAG single nucleotide polymorphisms and an omnigenic ancestry effect influence POAG risk.
INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE
(2021)
Article
Veterinary Sciences
Jessica B. Burn, Alex S. Huang, Arthur Weber, Andras M. Komaromy, Christopher G. Pirie
Summary: Evaluation of intravenous scleral and intracameral aqueous angiography in normal-tension and high-tension glaucomatous canine eyes showed distinct patterns of vascular flow, with a higher prevalence of laminar flow observed in hypertensive eyes.
VETERINARY OPHTHALMOLOGY
(2022)
Article
Veterinary Sciences
Ava Cabble, Shayla Bajric, Lydia E. Kapeller, Christine D. Harman, Amanda L. Jacobson, Hemalatha Palanivel, David A. Taylor, Andras M. Komaromy
Summary: This study compared intraocular pressure measurements in dogs taken with and without the automatic positioning system, and found no significant differences between the two methods. It suggests that Tono-Vera (R) Vet measurements can provide reliable results even without the aid of the positioning system.
VETERINARY OPHTHALMOLOGY
(2023)
Review
Medicine, General & Internal
Aditya Belamkar, Alon Harris, Francesco Oddone, Alice Verticchio Vercellin, Anna Fabczak-Kubicka, Brent Siesky
Summary: Primary open-angle glaucoma (POAG) is prevalent in aging Asian populations, with distinctive characteristics and genetic differences compared to other ethnicities. Further research is needed to improve treatment plans for this high prevalence of glaucoma in Asian populations.
JOURNAL OF CLINICAL MEDICINE
(2022)
Article
Ophthalmology
D. Kiessling, C. Rennings, M. Hild, A. Lappas, T. S. Dietlein, G. F. Roessler, R. A. Widder
Summary: The results of this study suggest that the outcomes of subsequent eye surgeries can be predicted based on the results of the initial eye and the type of surgery performed, demonstrating high predictive potential.
GRAEFES ARCHIVE FOR CLINICAL AND EXPERIMENTAL OPHTHALMOLOGY
(2022)
Review
Ophthalmology
Manoj Yadav, Aarti Bhardwaj, Anshu Yadav, Rima Dada, Mukesh Tanwar
Summary: Glaucoma is a series of optic diseases that can cause progressive vision loss and total blindness. Primary open-angle glaucoma (POAG) is the most common type. The goal of this study is to explore the role of genes and their variants in the development of POAG.
INDIAN JOURNAL OF OPHTHALMOLOGY
(2023)
Review
Ophthalmology
Manoj Yadav, Aarti Bhardwaj, Anshu Yadav, Rima Dada, Mukesh Tanwar
Summary: Glaucoma is a series of optic diseases that lead to progressive vision loss and total blindness. The most common type is primary open-angle glaucoma (POAG), which is a complex condition influenced by both environmental and genetic factors. The number of glaucoma patients is expected to increase globally, with Asia and Africa being the most affected regions. Research has shown the significant role of genes and their variants in the pathogenesis of POAG.
INDIAN JOURNAL OF OPHTHALMOLOGY
(2023)
Article
Ophthalmology
Yong Woo Kim, Yun Hwan Lee, Jin-Soo Kim, Jinho Lee, Yu Jeong Kim, Hyun Sub Cheong, Seok Hwan Kim, Ki Ho Park, Dong Myung Kim, Hyuk Jin Choi, Jin Wook Jeoung
Summary: The study validated the effectiveness of six previously known genetic loci related to primary open-angle glaucoma (POAG) in a Korean population. Variants near CDKN2B-AS1 and SIX1/SIX6 may require further investigation to obtain more genetic information on POAG development in this population.
BRITISH JOURNAL OF OPHTHALMOLOGY
(2021)
Article
Medicine, General & Internal
Antonio Maria Fea, Martina Menchini, Alessandro Rossi, Chiara Posarelli, Lorenza Malinverni, Michele Figus
Summary: The study investigated the efficacy and safety of the XEN63 implant in open-angle glaucoma patients, showing significant reduction in intraocular pressure and the need for hypotensive medications, with good short-term safety profile.
JOURNAL OF CLINICAL MEDICINE
(2021)
Article
Medicine, General & Internal
Ya-Hui Wei, Yu Cai, Bonnie N. K. Choy, Bai-Bing Li, Ruo-Shi Li, Chen Xing, Xia Wang, Tian Tian, Yuan Fang, Mei Li, Ying-Zi Pan
Summary: NTG patients showed higher DCR values compared to controls, with some DCRs being negatively correlated with CCT and IOP, while others were positively correlated with these factors. The cornea was more deformable in NTG compared to HTG or controls, indicating a potential biomechanical mechanism underlying glaucomatous optic neuropathy in NTG patients.
CHINESE MEDICAL JOURNAL
(2021)
Article
Ophthalmology
Jing Na He, Tsz Kin Ng, Shi Yao Lu, Pancy Oi Sin Tam, Poemen P. Chan, Clement C. Tham, Chi Pui Pang, Li Jia Chen, Wai Kit Chu
Summary: This study investigated the association between the ANGPT2 gene and primary open-angle glaucoma (POAG) in the Chinese population. The results showed that the SNP rs11775442 was associated with normal tension glaucoma (NTG) in the Hong Kong cohort, while rs13269021 was associated with NTG in males in the Shantou cohort. Further studies are needed to confirm the association between the ANGPT2 locus and NTG in Chinese males.
Article
Medicine, General & Internal
Michele Lanza, Angelo Leone, Gabriele Scognamiglio, Luigi Serra, Clemente Maria Iodice, Paolo Melillo, Francesca Simonelli
Summary: This study found no significant differences in the efficacy of first-choice medications for primary open-angle glaucoma, but the efficacy may be influenced by various ocular and systemic features in different groups.
JOURNAL OF CLINICAL MEDICINE
(2022)
Article
Veterinary Sciences
Kelly A. Leary, Kuan-Ting Lin, Juan P. Steibel, Christine D. Harman, Andras M. Komaromy
Summary: The safety and efficacy of topically administered 0.02% netarsudil ophthalmic solution in normal and glaucomatous dogs with ADAMTS10-open-angle glaucoma were evaluated. The results showed that netarsudil administration resulted in marginal and clinically irrelevant intraocular pressure decreases, with significant conjunctival hyperemia as the main side effect.
VETERINARY OPHTHALMOLOGY
(2021)
Article
Ophthalmology
Nate Pasmanter, Laurence M. Occelli, Simon M. Petersen-Jones
Summary: Analysis of ERG responses in two dog models of retinitis pigmentosa with PDE6A and CNGB1 mutations revealed impaired retinal function, which could be restored to normal levels through gene augmentation therapy.
DOCUMENTA OPHTHALMOLOGICA
(2021)
Article
Medicine, Research & Experimental
Marina Pavlou, Christian Schon, Laurence M. Occelli, Axel Rossi, Nadja Meumann, Ryan F. Boyd, Joshua T. Bartoe, Jakob Siedlecki, Maximilian J. Gerhardt, Sabrina Babutzka, Jacqueline Bogedein, Johanna E. Wagner, Siegfried G. Priglinger, Martin Biel, Simon M. Petersen-Jones, Hildegard Buening, Stylianos Michalakis
Summary: A novel engineered rAAV vectors have been developed for efficient targeting of photoreceptors via less invasive intravitreal administration, showing potential for clinical application in treating blinding retinal dystrophies.
EMBO MOLECULAR MEDICINE
(2021)
Article
Biochemistry & Molecular Biology
Laurence M. Occelli, Anahita Daruwalla, Samantha R. De Silva, Paige A. Winkler, Kelian Sun, Nathaniel Pasmanter, Andrea Minella, Janice Querubin, Leslie A. Lyons, Anthony G. Robson, Elise Heon, Michel Michaelides, Andrew R. Webster, Krzysztof Palczewski, Ajoy Vincent, Omar A. Mahroo, Philip D. Kiser, Simon M. Petersen-Jones
Summary: This article introduces a novel cat model associated with RDH5 gene mutation, which replicates the development of macular atrophy in patients, and has the potential to improve molecular understanding and test therapeutic interventions.
HUMAN MOLECULAR GENETICS
(2022)
Article
Veterinary Sciences
Luis Felipe L. P. Marinho, Laurence M. Occelli, Mariza Bortolini, Kelian Sun, Paige A. Winkler, Fabiano Montiani-Ferreira, Simon M. Petersen-Jones
Summary: Focal bullous retinal detachments were observed in dogs with three distinct forms of progressive retinal atrophy. These lesions develop prior to retinal thinning and should be monitored in dogs with PRA. Gene augmentation therapy in CNGB1-mutant dogs may prevent formation of bullae.
VETERINARY OPHTHALMOLOGY
(2022)
Article
Veterinary Sciences
Laurence M. Occelli, Chris G. Pirie, Simon M. Petersen-Jones
Summary: Optical coherence tomography angiography (OCT-A) is a new non-invasive technique for evaluating retinal vasculature, providing more detailed information compared to traditional dye-based angiography. OCT-A can clearly demonstrate the anatomical depth of the imaged vessels. However, there are limitations and potential errors/artifacts associated with this technique that need to be considered.
VETERINARY OPHTHALMOLOGY
(2022)
Article
Veterinary Sciences
Shin Ae Park, Dodd Sledge, Colleen F. Monahan, Leandro Teixeira, Ryan Boyd, Katie Freeman, Kristin Koehl, Christine Harman, Kirk Munoz, Laurence M. Occelli, Chris G. Pirie, Harriet Davidson, Simon Petersen-Jones, Andras M. Komaromy
Summary: This is a case series describing atypical chorioretinal lesions in dogs with primary angle-closure glaucoma (PACG), suggesting a possible association between the two.
BMC VETERINARY RESEARCH
(2022)
Article
Ophthalmology
Nate Pasmanter, Laurence M. Occelli, Andras M. Komaromy, Simon M. Petersen-Jones
Summary: This study assessed different extended electroretinographic protocols to evaluate the contribution of retinal cells and characterize dogs with inherited retinal disease. The results showed that different stimuli could separate rod and cone responses, and the amplitudes varied with increasing background luminance. Extended flicker protocols were well fit with mathematical models in normal dogs. These protocols provide additional information on the health and function of retinal cells and allow quantifiable comparison between normal dogs and those with retinal disease.
DOCUMENTA OPHTHALMOLOGICA
(2022)
Article
Veterinary Sciences
Simon M. Petersen-Jones, Nate Pasmanter, Laurence M. Occelli, Kristen J. Gervais, Freya M. Mowat, Janice Querubin, Paige A. Winkler
Summary: The study describes an inherited abnormal negative response electroretinogram (NRE) in Papillon dogs that affects both dark- and light-adapted ERG responses.
VETERINARY OPHTHALMOLOGY
(2022)
Article
Ophthalmology
Simon M. Petersen-Jones, Nathaniel Pasmanter, Laurence M. Occelli, Janice R. Querubin, Paige A. Winkler
Summary: This study reports the persistence of small, desensitized rod ERG responses in CNGB1 mutant dogs, which may be due to low levels of CNGA1 in outer segments.
DOCUMENTA OPHTHALMOLOGICA
(2022)
Article
Veterinary Sciences
Nate Pasmanter, Simon M. M. Petersen-Jones
Summary: This study investigates the changes in rod pathways under different lighting conditions in dogs using a long flash protocol with varying background luminance and stimulus strength. The results show that the b-wave of rod response is significantly reduced in mesopic conditions, resulting in a predominantly negative waveform. Rod bipolar cells saturate with dimmer backgrounds than rod photoreceptors, contributing to a large underlying negativity in mesopic backgrounds. These findings highlight the changes in signaling pathway of rod-driven responses that extend the range of lighting conditions over which the retina functions.
BMC VETERINARY RESEARCH
(2022)
Article
Multidisciplinary Sciences
Laurence M. Occelli, Kelian Sun, Paige A. Winkler, Brandy J. Morgan, Simon M. Petersen-Jones
Summary: The purpose of this study was to investigate whether raised levels of retinal cyclic guanosine monophosphate (cGMP) in PDE6A(-/-) dogs was reflected in plasma levels. The results showed that cGMP levels were significantly elevated in retinal samples of 2-month-old PDE6A(-/-) dogs, but there was no significant difference in plasma cGMP levels. Therefore, plasma cGMP levels may not be a useful biomarker for the disease at the 2-month timepoint.
Article
Veterinary Sciences
Andrea L. Minella, Kristina Narfstrom Wiechel, Simon M. Petersen-Jones
Summary: Mutations in the CEP290 gene in rdAc cats lead to a truncation of the protein by 157 amino acids, resulting in a milder phenotype compared to human patients with CEP290 mutations. The retention of some full-length CEP290 protein in mutant cats may contribute to the less severe phenotype.
VETERINARY OPHTHALMOLOGY
(2023)
Article
Veterinary Sciences
Mariza Bortolini, Paige A. Winkler, Juan Carlos Duque Moreno, Mario Teruo Sato, Bianca Luiza Valduga Guareschi, Simon M. Petersen-Jones, Fabiano Montiani-Ferreira
Summary: In this study, we identified a newly identified form of progressive retinal atrophy (PRA) in German Spitzes associated with a mutation in the GUCY2D gene. The initial clinical features included pale papilla and mild vascular attenuation, and the affected dogs showed impaired vision under both scotopic and photopic conditions. Fundus photography and optical coherence tomography revealed multiple small retinal bullae and retinal thinning. Pedigree analysis supported an autosomal recessive inheritance. A mutation was identified in the GUCY2D gene, which was found to be associated with the disease.
VETERINARY OPHTHALMOLOGY
(2023)
Meeting Abstract
Ophthalmology
Billie Beckwith-Cohen, Paige A. Winkler, Laurence M. Occelli, Kelian Sun, Fabiano Montiani-Ferreira, Luis Felipe Marinho, Amy Lee, Maciej Parys, Vilma Yuzbasiyan-Gurkan, William W. Hauswirth, Simon Petersen-Jones
INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE
(2022)
Meeting Abstract
Biotechnology & Applied Microbiology
Lena Zobel, Laurence M. Occelli, Pavel Kielkowski, Martin Biel, Simon Petersen-Jones, Stylianos Michalakis
Article
Veterinary Sciences
Hagar Hauser
Summary: Separation-related problems (SRPs) are common in companion dogs and clinicians should be able to diagnose and rule out physical diseases that may exhibit similar clinical signs or worsen SRP.
VETERINARY CLINICS OF NORTH AMERICA-SMALL ANIMAL PRACTICE
(2024)
Article
Veterinary Sciences
Clara Wilson, Dana Ebbecke, Danielle Berger, Cynthia Otto
VETERINARY CLINICS OF NORTH AMERICA-SMALL ANIMAL PRACTICE
(2024)
Article
Veterinary Sciences
Lisa Radosta
VETERINARY CLINICS OF NORTH AMERICA-SMALL ANIMAL PRACTICE
(2024)
Article
Veterinary Sciences
Patrizia Piotti, Ludovica Pierantoni, Mariangela Albertini, Federica Pirrone
VETERINARY CLINICS OF NORTH AMERICA-SMALL ANIMAL PRACTICE
(2024)
Article
Veterinary Sciences
Lena Provoost
VETERINARY CLINICS OF NORTH AMERICA-SMALL ANIMAL PRACTICE
(2024)
Article
Veterinary Sciences
M. Leanne Lilly, Carlo Siracusa
VETERINARY CLINICS OF NORTH AMERICA-SMALL ANIMAL PRACTICE
(2024)
Article
Veterinary Sciences
Daniel S. Mills, Fergus M. Coutts, Kevin J. Mcpeake
VETERINARY CLINICS OF NORTH AMERICA-SMALL ANIMAL PRACTICE
(2024)
Article
Veterinary Sciences
Marta Amat, Susana Le Brech, Xavier Manteca
VETERINARY CLINICS OF NORTH AMERICA-SMALL ANIMAL PRACTICE
(2024)
Article
Veterinary Sciences
Sagi Denenberg, Karen L. Machin, Gary M. Landsberg
VETERINARY CLINICS OF NORTH AMERICA-SMALL ANIMAL PRACTICE
(2024)
Article
Veterinary Sciences
Leticia M. S. Dantas, Niwako Ogata
Summary: The stress response has a significant impact on the central nervous system and other systems in the body, contributing to chronic mental and behavioral pathologies as well as increasing the risk for other chronic inflammatory and metabolic diseases. Psychiatric treatments play a role in alleviating fear, stress, and anxiety and improving the quality of life and lifespan for dogs and cats. The availability of safe psychoactive medications allows for effective treatment options in veterinary patients. Clinicians should have a good understanding of the role neurotransmitters and hormones play in emotional processing, cognition, and behavior, as well as the mechanism of action of drugs to ensure appropriate medication selection for each individual patient.
VETERINARY CLINICS OF NORTH AMERICA-SMALL ANIMAL PRACTICE
(2024)
Editorial Material
Veterinary Sciences
Carlo Siracusa
VETERINARY CLINICS OF NORTH AMERICA-SMALL ANIMAL PRACTICE
(2024)
Article
Veterinary Sciences
Valarie V. Tynes
VETERINARY CLINICS OF NORTH AMERICA-SMALL ANIMAL PRACTICE
(2024)
Article
Veterinary Sciences
Amy Learn, Debra Horwitz
Summary: Inappropriate elimination or behavioral periuria/perichezia is a commonly reported feline behavioral problem worldwide. Changes in behavior are often early signs of physical illness and can worsen existing behavioral issues. Determining the cause, whether medical or behavioral, is crucial before implementing appropriate treatments.
VETERINARY CLINICS OF NORTH AMERICA-SMALL ANIMAL PRACTICE
(2024)
Article
Veterinary Sciences
Jonathan Bowen, Jaume Fatjo
VETERINARY CLINICS OF NORTH AMERICA-SMALL ANIMAL PRACTICE
(2024)
Article
Veterinary Sciences
Maya Braem
VETERINARY CLINICS OF NORTH AMERICA-SMALL ANIMAL PRACTICE
(2024)