1
|
Chelban V, Aksnes H, Maroofian R, LaMonica LC, Seabra L, Siggervåg A, Devic P, Shamseldin HE, Vandrovcova J, Murphy D, Richard AC, Quenez O, Bonnevalle A, Zanetti MN, Kaiyrzhanov R, Salpietro V, Efthymiou S, Schottlaender LV, Morsy H, Scardamaglia A, Tariq A, Pagnamenta AT, Pennavaria A, Krogstad LS, Bekkelund ÅK, Caiella A, Glomnes N, Brønstad KM, Tury S, Moreno De Luca A, Boland-Auge A, Olaso R, Deleuze JF, Anheim M, Cretin B, Vona B, Alajlan F, Abdulwahab F, Battini JL, İpek R, Bauer P, Zifarelli G, Gungor S, Kurul SH, Lochmuller H, Da'as SI, Fakhro KA, Gómez-Pascual A, Botía JA, Wood NW, Horvath R, Ernst AM, Rothman JE, McEntagart M, Crow YJ, Alkuraya FS, Nicolas G, Arnesen T, Houlden H. Biallelic NAA60 variants with impaired n-terminal acetylation capacity cause autosomal recessive primary familial brain calcifications. Nat Commun 2024; 15:2269. [PMID: 38480682 PMCID: PMC10937998 DOI: 10.1038/s41467-024-46354-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Accepted: 02/23/2024] [Indexed: 03/17/2024] Open
Abstract
Primary familial brain calcification (PFBC) is characterized by calcium deposition in the brain, causing progressive movement disorders, psychiatric symptoms, and cognitive decline. PFBC is a heterogeneous disorder currently linked to variants in six different genes, but most patients remain genetically undiagnosed. Here, we identify biallelic NAA60 variants in ten individuals from seven families with autosomal recessive PFBC. The NAA60 variants lead to loss-of-function with lack of protein N-terminal (Nt)-acetylation activity. We show that the phosphate importer SLC20A2 is a substrate of NAA60 in vitro. In cells, loss of NAA60 caused reduced surface levels of SLC20A2 and a reduction in extracellular phosphate uptake. This study establishes NAA60 as a causal gene for PFBC, provides a possible biochemical explanation of its disease-causing mechanisms and underscores NAA60-mediated Nt-acetylation of transmembrane proteins as a fundamental process for healthy neurobiological functioning.
Collapse
Affiliation(s)
- Viorica Chelban
- Department of Neuromuscular Diseases, UCL Queen Square Institute of Neurology, London, WC1N 3BG, UK.
- Neurobiology and Medical Genetics Laboratory, "Nicolae Testemitanu" State University of Medicine and Pharmacy, 165, Stefan cel Mare si Sfant Boulevard, MD, 2004, Chisinau, Republic of Moldova.
| | - Henriette Aksnes
- Department of Biomedicine, University of Bergen, Bergen, Norway.
| | - Reza Maroofian
- Department of Neuromuscular Diseases, UCL Queen Square Institute of Neurology, London, WC1N 3BG, UK
| | - Lauren C LaMonica
- Department of Cell Biology, Yale School of Medicine, New Haven, CT, USA
| | - Luis Seabra
- Université Paris Cité, Imagine Institute, Laboratory of Neurogenetics and Neuroinflammation, INSERM UMR 1163, Paris, France
| | | | - Perrine Devic
- Hospices Civils de Lyon, Groupement Hospitalier Sud, Service d'Explorations Fonctionnelles Neurologiques, Lyon, France
| | - Hanan E Shamseldin
- Department of Translational Genomics, Center for Genomic Medicine, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
| | - Jana Vandrovcova
- Department of Neuromuscular Diseases, UCL Queen Square Institute of Neurology, London, WC1N 3BG, UK
| | - David Murphy
- Department of Clinical and Movement Neurosciences, UCL Queen Square Institute of Neurology, London, WC1N 3BG, UK
| | - Anne-Claire Richard
- Univ Rouen Normandie, Inserm U1245, CHU Rouen, Department of Genetics and CNRMAJ, F-76000, Rouen, France
| | - Olivier Quenez
- Univ Rouen Normandie, Inserm U1245, CHU Rouen, Department of Genetics and CNRMAJ, F-76000, Rouen, France
| | - Antoine Bonnevalle
- Univ Rouen Normandie, Inserm U1245, CHU Rouen, Department of Genetics and CNRMAJ, F-76000, Rouen, France
| | - M Natalia Zanetti
- Department of Clinical and Experimental Epilepsy, UCL Queen Square Institute of Neurology, London, WC1N 3BG, UK
| | - Rauan Kaiyrzhanov
- Department of Neuromuscular Diseases, UCL Queen Square Institute of Neurology, London, WC1N 3BG, UK
- South Kazakhstan Medical Academy Shymkent, Shymkent, 160019, Kazakhstan
| | - Vincenzo Salpietro
- Department of Neuromuscular Diseases, UCL Queen Square Institute of Neurology, London, WC1N 3BG, UK
| | - Stephanie Efthymiou
- Department of Neuromuscular Diseases, UCL Queen Square Institute of Neurology, London, WC1N 3BG, UK
| | - Lucia V Schottlaender
- Department of Neuromuscular Diseases, UCL Queen Square Institute of Neurology, London, WC1N 3BG, UK
- Instituto de Investigaciones en Medicina Traslacional (IIMT), CONICET-Universidad Austral, Av. Juan Domingo Perón 1500, B1629AHJ, Pilar, Argentina
- Instituto de medicina genómica (IMeG), Hospital Universitario Austral, Universidad Austral, Av. Juan Domingo Perón 1500, B1629AHJ, Pilar, Argentina
| | - Heba Morsy
- Department of Neuromuscular Diseases, UCL Queen Square Institute of Neurology, London, WC1N 3BG, UK
- Department of Human Genetics, Medical Research Institute, Alexandria University, Alexandria, Egypt
| | - Annarita Scardamaglia
- Department of Neuromuscular Diseases, UCL Queen Square Institute of Neurology, London, WC1N 3BG, UK
| | - Ambreen Tariq
- Department of Neuromuscular Diseases, UCL Queen Square Institute of Neurology, London, WC1N 3BG, UK
| | - Alistair T Pagnamenta
- Oxford NIHR Biomedical Research Centre, Wellcome Centre for Human Genetics, Oxford, United Kingdom
| | - Ajia Pennavaria
- Department of Biomedicine, University of Bergen, Bergen, Norway
| | - Liv S Krogstad
- Department of Biomedicine, University of Bergen, Bergen, Norway
| | - Åse K Bekkelund
- Department of Biomedicine, University of Bergen, Bergen, Norway
| | - Alessia Caiella
- Department of Biomedicine, University of Bergen, Bergen, Norway
| | - Nina Glomnes
- Department of Biomedicine, University of Bergen, Bergen, Norway
- Department of Clinical Science, University of Bergen, 5020, Bergen, Norway
| | | | - Sandrine Tury
- Institut de Recherche en Infectiologie de Montpellier, Université de Montpellier, CNRS, Montpellier, France
| | - Andrés Moreno De Luca
- Department of Radiology, Autism & Developmental Medicine Institute, Geisinger, Lewisburg, PA, USA
- Department of Radiology, Neuroradiology Section, Kingston Health Sciences Centre, Queen's University Faculty of Health Sciences, Kingston, Ontario, Canada
| | - Anne Boland-Auge
- Université Paris-Saclay, CEA, Centre National de Recherche en Génomique Humaine (CNRGH), 91057, Evry, France
| | - Robert Olaso
- Université Paris-Saclay, CEA, Centre National de Recherche en Génomique Humaine (CNRGH), 91057, Evry, France
| | - Jean-François Deleuze
- Université Paris-Saclay, CEA, Centre National de Recherche en Génomique Humaine (CNRGH), 91057, Evry, France
| | - Mathieu Anheim
- Neurology Department, Strasbourg University Hospital, Strasbourg, France
- Strasbourg Federation of Translational Medicine (FMTS), Strasbourg University, Strasbourg, France
- INSERM-U964; CNRS-UMR7104, University of Strasbourg, Illkirch-Graffenstaden, France
| | - Benjamin Cretin
- Neurology Department, Strasbourg University Hospital, Strasbourg, France
- Strasbourg Federation of Translational Medicine (FMTS), Strasbourg University, Strasbourg, France
- INSERM-U964; CNRS-UMR7104, University of Strasbourg, Illkirch-Graffenstaden, France
| | - Barbara Vona
- Institute of Human Genetics, University Medical Center Göttingen, 37073, Göttingen, Germany
- Institute for Auditory Neuroscience and InnerEarLab, University Medical Center Göttingen, 37075, Göttingen, Germany
| | - Fahad Alajlan
- Department of Neuroscience Center, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
| | - Firdous Abdulwahab
- Department of Translational Genomics, Center for Genomic Medicine, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
| | - Jean-Luc Battini
- Institut de Recherche en Infectiologie de Montpellier, Université de Montpellier, CNRS, Montpellier, France
| | - Rojan İpek
- Paediatric Neurology, Faculty of Medicine, Dicle University, Diyarbakır, Turkey
| | - Peter Bauer
- Centogene GmbH, Am Strande 7, 18055, Rostock, Germany
| | | | - Serdal Gungor
- Inonu University, Faculty of Medicine, Turgut Ozal Research Center, Department of Pediatrics, Division of Pediatric Neurology, Malatya, Turkey
| | - Semra Hiz Kurul
- Dokuz Eylul University, School of Medicine, Department of Paediatric Neurology, Izmir, Turkey
| | - Hanns Lochmuller
- Children's Hospital of Eastern Ontario Research Institute and Division of Neurology, Department of Medicine, The Ottawa Hospital, Ottawa, Canada
- Brain and Mind Research Institute, University of Ottawa, Ottawa, Canada
- Department of Neuropediatrics and Muscle Disorders, Medical Center-University of Freiburg, Faculty of Medicine, Freiburg, Germany
| | - Sahar I Da'as
- Department of Human Genetics, Sidra Medicine, Doha, Qatar
- College of Health and Life Sciences, Hamad Bin Khalifa University, Doha, Qatar
| | - Khalid A Fakhro
- Department of Human Genetics, Sidra Medicine, Doha, Qatar
- College of Health and Life Sciences, Hamad Bin Khalifa University, Doha, Qatar
- Weill Cornell Medical College, Doha, Qatar
| | - Alicia Gómez-Pascual
- Department of Information and Communications Engineering, University of Murcia, Campus Espinardo, 30100, Murcia, Spain
| | - Juan A Botía
- Department of Information and Communications Engineering, University of Murcia, Campus Espinardo, 30100, Murcia, Spain
| | - Nicholas W Wood
- Department of Clinical and Movement Neurosciences, UCL Queen Square Institute of Neurology, London, WC1N 3BG, UK
- Neurogenetics Laboratory, The National Hospital for Neurology and Neurosurgery, London, WC1N 3BG, UK
| | - Rita Horvath
- Department of Clinical Neurosciences, University of Cambridge, Cambridge, UK
| | - Andreas M Ernst
- Department of Cell Biology, Yale School of Medicine, New Haven, CT, USA
- School of Biological Sciences, Department of Cell and Developmental Biology, University of California San Diego, La Jolla, CA, USA
| | - James E Rothman
- Department of Cell Biology, Yale School of Medicine, New Haven, CT, USA
- Department of Clinical and Experimental Epilepsy, UCL Queen Square Institute of Neurology, London, WC1N 3BG, UK
| | - Meriel McEntagart
- Medical Genetics Department, St George's University Hospitals, London, SWI7 0RE, UK
| | - Yanick J Crow
- Université Paris Cité, Imagine Institute, Laboratory of Neurogenetics and Neuroinflammation, INSERM UMR 1163, Paris, France
- MRC Human Genetics Unit, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
| | - Fowzan S Alkuraya
- Department of Translational Genomics, Center for Genomic Medicine, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
- Department of Anatomy and Cell Biology, College of Medicine, Alfaisal University, Riyadh, Saudi Arabia
| | - Gaël Nicolas
- Univ Rouen Normandie, Inserm U1245, CHU Rouen, Department of Genetics and CNRMAJ, F-76000, Rouen, France
| | - Thomas Arnesen
- Department of Biomedicine, University of Bergen, Bergen, Norway.
- Department of Surgery, Haukeland University Hospital, Bergen, Norway.
| | - Henry Houlden
- Department of Neuromuscular Diseases, UCL Queen Square Institute of Neurology, London, WC1N 3BG, UK.
- Neurogenetics Laboratory, The National Hospital for Neurology and Neurosurgery, London, WC1N 3BG, UK.
| |
Collapse
|
2
|
LaMonica LC, Ren J, Jain N, Goldberg ES, Rhee KB, Wickner P, Chaguturu SK. At-home hemoglobin A1c testing during COVID-19 improved glycemic control. Am J Manag Care 2024; 30:e73-e77. [PMID: 38457825 DOI: 10.37765/ajmc.2024.89449] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/10/2024]
Abstract
OBJECTIVES COVID-19 has exacerbated barriers to routine testing for chronic disease management. This study investigates whether a home hemoglobin A1c (HbA1c) test kit intervention increases frequency of HbA1c testing and leads to changes in HbA1c 6 months post testing and whether self-reinforcement education improves maintenance of HbA1c testing. STUDY DESIGN Retrospective analysis of a randomized, controlled quality improvement intervention among members with type 2 diabetes (T2D) in a large commercial health plan. METHODS Participants were 41,214 commercial fully insured members with T2D without an HbA1c test in the past 6 months or with only 1 HbA1c test in the last 12 months. Members were randomly assigned to either a control group or an at-home HbA1c testing intervention group consisting of either an opt-in test or a direct-to-member opt-out HbA1c test kit shipment. A third cohort of members was assigned to a self-reinforcement group to encourage continued testing twice per year. Main outcomes were HbA1c testing rates and HbA1c levels (in %). RESULTS A total of 11.1% (508 of 4590) at-home HbA1c kits were completed. At-home HbA1c test kits increased testing rates by 4.9% compared with controls (P < .001). Members with an HbA1c level of at least 7% who requested and completed at-home HbA1c testing had a 0.38% reduction in HbA1c in the 6 months post intervention when controlling for baseline HbA1c (P < .001). Members who received self-reinforcement messaging had a 0.37% HbA1c reduction post intervention (P = .015). CONCLUSIONS This novel, at-home approach to test HbA1c is an effective intervention to increase testing rates and facilitate HbA1c reduction over time in patients with T2D.
Collapse
|
3
|
LaMonica LC, Lang-Houser M, Bresler SC, Mervak JE. Low-dose naltrexone as treatment for epidermolysis bullosa pruriginosa-associated refractory pruritus. JAAD Case Rep 2023; 38:82-85. [PMID: 37456515 PMCID: PMC10339115 DOI: 10.1016/j.jdcr.2023.06.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/18/2023] Open
Affiliation(s)
| | | | - Scott C. Bresler
- Department of Dermatology, University of Michigan, Ann Arbor, Michigan
- Department of Pathology, University of Michigan, Ann Arbor, Michigan
| | - Julie E. Mervak
- Department of Dermatology, University of Michigan, Ann Arbor, Michigan
| |
Collapse
|
4
|
LaMonica LC, Lang Houser ME, Smith EH. Desmoplastic melanoma presenting as an alopecic patch in a young patient. JAAD Case Rep 2023; 38:96-99. [PMID: 37600724 PMCID: PMC10433288 DOI: 10.1016/j.jdcr.2023.06.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/22/2023] Open
Affiliation(s)
| | | | - Emily H. Smith
- Department of Dermatology, Michigan Medicine, Ann Arbor, Michigan
- Department of Pathology, Michigan Medicine, Ann Arbor, Michigan
| |
Collapse
|
5
|
LaMonica LC, McGarvey ST, Rivara AC, Sweetman CA, Naseri T, Reupena MS, Kadiamada H, Kocher E, Rojas-Carroll A, DeLany JP, Hawley NL. Cascades of diabetes and hypertension care in Samoa: Identifying gaps in the diagnosis, treatment, and control continuum - a cross-sectional study. Lancet Reg Health West Pac 2022; 18:100313. [PMID: 35024652 PMCID: PMC8669362 DOI: 10.1016/j.lanwpc.2021.100313] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 09/06/2021] [Accepted: 10/09/2021] [Indexed: 12/25/2022]
Abstract
BACKGROUND Samoa is a Pacific Island country facing one of the highest burdens of non-communicable disease globally. METHODS In this study, we apply a cascade-of-care approach to understand gaps in the awareness, treatment, and control cascade of diabetes and hypertension in a cross-sectional, convenience sample of 703 young, high-risk Samoan adults (29.5-50.9 years). FINDINGS Non-communicable diseases were prevalent in the study sample: 19.5% (95% CI: 16.6%-22.7%) of participants had diabetes; 47.6% (95% CI: 43.7%-51.4%) presented with pre-diabetes or diabetes; 31.0% (95% CI: 27.5%-34.6%) had hypertension; and nearly 90% (95% CI: 86.7%-91.5%) had overweight or obesity. Among those with diabetes and hypertension, only 20.5% (95% CI: 13.9%-28.4%) and 11.8% (95% CI: 7.8%-16.9%) of participants were aware of their condition, respectively. Only 0.8% (95% CI: 0.0%-4.2%) of all participants with diabetes had achieved glycemic control; only 2.8% (95% CI: 1.1%-6.1%) of those with hypertension achieved control. INTERPRETATION We found a significant burden of diabetes and hypertension in Samoa, exceeding the recent prevalence estimates of other low- to middle-income countries by nearly two-fold. A severe unmet need in both detection and subsequent control and monitoring of these chronic conditions exists. Our results suggest that the initial diagnosis and surveillance stage in the cascade of care for chronic conditions should be a major focus of primary care efforts; national screening campaigns and programs that leverage village and district nurses to deliver community-based primary care may significantly impact gap closure in the NCD cascade. FUNDING This study was supported by the U.S. National Institutes of Health R01HL140570 (PIs: McGarvey and DeLany); AR was supported by NIH FIC D43TW010540; HK and AR-C were supported by the Minority Health and Health Disparities International Research Training (MHIRT) Program at Brown University, NIH Grant # 5T37MD008655.
Collapse
Affiliation(s)
- Lauren C. LaMonica
- Department of Chronic Disease Epidemiology, Yale School of Public Health, New Haven, Connecticut, USA
| | - Stephen T. McGarvey
- International Health Institute and Department of Epidemiology, School of Public Health, and Department of Anthropology, Brown University, Providence, Rhode Island, USA
| | - Anna C. Rivara
- Department of Chronic Disease Epidemiology, Yale School of Public Health, New Haven, Connecticut, USA
| | - Chlöe A. Sweetman
- Department of Anthropology, Guarini School of Graduate and Advanced Studies at Dartmouth College, Hanover, New Hampshire, USA
| | | | | | - Hemant Kadiamada
- International Health Institute and Department of Epidemiology, School of Public Health, and Department of Anthropology, Brown University, Providence, Rhode Island, USA
| | - Erica Kocher
- Department of Chronic Disease Epidemiology, Yale School of Public Health, New Haven, Connecticut, USA
| | - Alexa Rojas-Carroll
- International Health Institute and Department of Epidemiology, School of Public Health, and Department of Anthropology, Brown University, Providence, Rhode Island, USA
| | - James P. DeLany
- AdventHealth Orlando, Translational Research Institute, Orlando, FL, US
| | - Nicola L. Hawley
- Department of Chronic Disease Epidemiology, Yale School of Public Health, New Haven, Connecticut, USA
| |
Collapse
|
6
|
Ramsey DJ, Poulin SJ, LaMonica LC, Blaha GR, Barouch FC, Chang J, Marx JL. Early Conversion to Aflibercept for Persistent Diabetic Macular Edema Results in Better Visual Outcomes and Lower Treatment Costs. Clin Ophthalmol 2021; 15:31-39. [PMID: 33447009 PMCID: PMC7802895 DOI: 10.2147/opth.s286665] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Accepted: 12/17/2020] [Indexed: 01/24/2023] Open
Abstract
Purpose To evaluate the functional and anatomic outcomes, as well as cost-effectiveness, of the timing of conversion to intravitreal aflibercept (IVA) in patients with treatment-resistant diabetic macular edema (DME). Methods Thirty consecutive eyes (25 patients) were identified that were treated with ≥3 intravitreal bevacizumab (IVB) and/or ranibizumab (IVR) injections prior to treatment with ≥3 IVA injections. Eyes that received ≤6 IVB and/or IVR injections (early-switch) were compared to those that received ≥7 injections (late-switch) prior to conversion to IVA. Treatment effectiveness was measured in quality-adjusted life years (QALYs). A micro-simulation model examined the impact of treatment duration on outcomes. Results Early- (n=18) and late- (n=12) switch eyes had similar vision prior to conversion to IVA. Despite improvements in retinal thickness, only the early-switch eyes maintained vision gains after conversion to IVA through the end of follow-up (p=0.027). Early switch saved $22,884/eye and produced an additional 0.027 QALYs. Conclusion Early conversion to IVA optimizes vision outcomes and results in lower overall treatment expenditures.
Collapse
Affiliation(s)
- David J Ramsey
- Division of Ophthalmology, Lahey Hospital & Medical Center, Tufts University School of Medicine, Peabody, MA 01960, USA
| | - Samuel J Poulin
- Division of Ophthalmology, Lahey Hospital & Medical Center, Tufts University School of Medicine, Peabody, MA 01960, USA
| | | | - Gregory R Blaha
- Division of Ophthalmology, Lahey Hospital & Medical Center, Tufts University School of Medicine, Peabody, MA 01960, USA
| | - Fina C Barouch
- Division of Ophthalmology, Lahey Hospital & Medical Center, Tufts University School of Medicine, Peabody, MA 01960, USA
| | - Jeffrey Chang
- Division of Ophthalmology, Lahey Hospital & Medical Center, Tufts University School of Medicine, Peabody, MA 01960, USA
| | - Jeffrey L Marx
- Division of Ophthalmology, Lahey Hospital & Medical Center, Tufts University School of Medicine, Peabody, MA 01960, USA
| |
Collapse
|
7
|
LaMonica LC, Bhardwaj MK, Hawley NL, Naseri T, Reupena MS, Cooper ML, Cotran PR, Roh S, Ramsey DJ. Remote Screening for Optic Nerve Cupping Using Smartphone-based Nonmydriatic Fundus Photography. J Glaucoma 2021; 30:58-60. [PMID: 32969917 PMCID: PMC7755732 DOI: 10.1097/ijg.0000000000001680] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Accepted: 09/07/2020] [Indexed: 12/17/2022]
Abstract
PRECIS Evaluation of nonmydriatic fundus photographs captured with a low-cost, smartphone-based camera facilitated remote screening of patients for enlarged optic nerve cup-to-disc ratio in the Independent Nation of Samoa, an underserved setting with one full-time ophthalmologist in the entire country. PURPOSE To investigate factors that impact inter-rater agreement of glaucoma suspect optic disc status using a low-cost, handheld nonmydriatic fundus camera. METHODS Color fundus photographs were obtained using the PanOptic iExaminer attached to an iPhone 6S by a lay examiner on 206 participants in the Independent Nation of Samoa. Images were remotely graded by an ophthalmologist and optometrist, and images from participants identified as at-risk for glaucoma were escalated to a glaucoma subspecialist for review. Fundus photo brightness, contrast, and focus were measured using the cup, rim, and temporal regions of the disc. Stereoscopic image pairs were subsequently generated from a subset of individual nonmydriatic photographs. RESULTS Features suggestive of glaucoma based on optic disc cupping were identified in 16.0% (33/206) of participants. There was moderately strong agreement between graders (90.3%) with κ=0.53 [95% confidence interval (CI)=0.33-0.73]. The intraclass correlation coefficients for the cup-to-disc ratio (CDR) and its difference were 0.84 (95% CI=0.81-0.87) and 0.68 (95% CI=0.59-0.75). Of the 33 participants identified, 94% had clinical risk criteria for potential glaucoma when reviewed by a subspecialist. Color fundus photograph cup brightness was significantly associated with cup-to-disc (CDR) grade, R2=0.36 (P<0.001), in which a brighter disc yielded a higher CDR. CONCLUSIONS Smartphone-based screening is a simple, low-cost method capable of measuring the CDR of the optic nerve. When combined with testing for other glaucoma risk factors such as intraocular pressure, this method of measuring CDR may help identify those patients who should be referred for further ophthalmologic assessment. We are currently conducting studies to assess the sensitivity and specificity of smart phone-based remote screening.
Collapse
Affiliation(s)
- Lauren C. LaMonica
- Department of Chronic Disease Epidemiology, Yale School of Public Health, New Haven, CT
| | - Mahesh K. Bhardwaj
- Department of Ophthalmology, Lahey Hospital & Medical Center, Burlington, MA
| | - Nicola L. Hawley
- Department of Chronic Disease Epidemiology, Yale School of Public Health, New Haven, CT
| | | | | | - Michael L. Cooper
- Department of Ophthalmology, Lahey Hospital & Medical Center, Burlington, MA
| | - Paul R. Cotran
- Department of Ophthalmology, Lahey Hospital & Medical Center, Burlington, MA
| | - Shiyoung Roh
- Department of Ophthalmology, Lahey Hospital & Medical Center, Burlington, MA
- Department of Ophthalmology, Tufts University School of Medicine, Boston, MA
| | - David J. Ramsey
- Department of Ophthalmology, Lahey Hospital & Medical Center, Burlington, MA
- Department of Ophthalmology, Tufts University School of Medicine, Boston, MA
| |
Collapse
|
8
|
Hawley NL, Pomer A, Rivara AC, Rosenthal SL, Duckham RL, Carlson JC, Naseri T, Reupena MS, Selu M, Lupematisila V, Unasa F, Vesi L, Fatu T, Unasa S, Faasalele-Savusa K, Wetzel AI, Soti-Ulberg C, Prescott AT, Siufaga G, Penaia C, To SB, LaMonica LC, Lameko V, Choy CC, Crouter SE, Redline S, Deka R, Kershaw EE, Urban Z, Minster RL, Weeks DE, McGarvey ST. Exploring the Paradoxical Relationship of a Creb 3 Regulatory Factor Missense Variant With Body Mass Index and Diabetes Among Samoans: Protocol for the Soifua Manuia (Good Health) Observational Cohort Study. JMIR Res Protoc 2020; 9:e17329. [PMID: 32706746 PMCID: PMC7413272 DOI: 10.2196/17329] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Revised: 02/24/2020] [Accepted: 03/02/2020] [Indexed: 01/16/2023] Open
Abstract
BACKGROUND The prevalence of obesity and diabetes in Samoa, like many other Pacific Island nations, has reached epidemic proportions. Although the etiology of these conditions can be largely attributed to the rapidly changing economic and nutritional environment, a recently identified genetic variant, rs373863828 (CREB 3 regulatory factor, CREBRF: c.1370G>A p.[R457Q]) is associated with increased odds of obesity, but paradoxically, decreased odds of diabetes. OBJECTIVE The overarching goal of the Soifua Manuia (Good Health) study was to precisely characterize the association of the CREBRF variant with metabolic (body composition and glucose homeostasis) and behavioral traits (dietary intake, physical activity, sleep, and weight control behaviors) that influence energy homeostasis in 500 adults. METHODS A cohort of adult Samoans who participated in a genome-wide association study of adiposity in Samoa in 2010 was followed up, based on the presence or absence of the CREBRF variant, between August 2017 and March 2019. Over a period of 7-10 days, each participant completed the main study protocol, which consisted of anthropometric measurements (weight, height, circumferences, and skinfolds), body composition assessment (bioelectrical impedance and dual-energy x-ray absorptiometry), point-of-care glycated hemoglobin measurement, a fasting blood draw and oral glucose tolerance test, urine collection, blood pressure measurement, hand grip strength measurement, objective physical activity and sleep apnea monitoring, and questionnaire measures (eg, health interview, cigarette and alcohol use, food frequency questionnaire, socioeconomic position, stress, social support, food and water insecurity, sleep, body image, and dietary preferences). In January 2019, a subsample of the study participants (n=118) completed a buttock fat biopsy procedure to collect subcutaneous adipose tissue samples. RESULTS Enrollment of 519 participants was completed in March 2019. Data analyses are ongoing, with results expected in 2020 and 2021. CONCLUSIONS While the genetic variant rs373863828, in CREBRF, has the largest known effect size of any identified common obesity gene, very little is currently understood about the mechanisms by which it confers increased odds of obesity but paradoxically lowered odds of type 2 diabetes. The results of this study will provide insights into how the gene functions on a whole-body level, which could provide novel targets to prevent or treat obesity, diabetes, and associated metabolic disorders. This study represents the human arm of a comprehensive and integrated approach involving humans as well as preclinical models that will provide novel insights into metabolic disease. INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID) RR1-10.2196/17329.
Collapse
Affiliation(s)
- Nicola L Hawley
- Department of Chronic Disease Epidemiology, Yale School of Public Health, New Haven, CT, United States
| | - Alysa Pomer
- Department of Chronic Disease Epidemiology, Yale School of Public Health, New Haven, CT, United States
| | - Anna C Rivara
- Department of Chronic Disease Epidemiology, Yale School of Public Health, New Haven, CT, United States
| | - Samantha L Rosenthal
- Department of Human Genetics, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, United States
| | - Rachel L Duckham
- Institute of Physical Activity and Nutrition, Deakin University, Geelong, Australia
- Australian Institute for Musculoskeletal Sciences, The University of Melbourne and Western Health, St Albans, Australia
| | - Jenna C Carlson
- Department of Biostatistics, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, United States
| | | | | | - Melania Selu
- Obesity, Lifestyle and Genetic Adaptations Study Group, Apia, Samoa
| | | | - Folla Unasa
- Obesity, Lifestyle and Genetic Adaptations Study Group, Apia, Samoa
| | - Lupesina Vesi
- Obesity, Lifestyle and Genetic Adaptations Study Group, Apia, Samoa
| | - Tracy Fatu
- Obesity, Lifestyle and Genetic Adaptations Study Group, Apia, Samoa
| | - Seipepa Unasa
- Obesity, Lifestyle and Genetic Adaptations Study Group, Apia, Samoa
| | | | - Abigail I Wetzel
- International Health Institute, Department of Epidemiology, School of Public Health, Brown University, Providence, RI, United States
| | | | - Angela T Prescott
- Department of Plastic and Reconstructive Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, United States
| | - Gloria Siufaga
- Obesity, Lifestyle and Genetic Adaptations Study Group, Apia, Samoa
| | - Corina Penaia
- Asian Pacific Islander Forward Movement, Los Angeles, CA, United States
| | - Sophie B To
- Department of Social and Behavioral Sciences, Yale School of Public Health, New Haven, CT, United States
| | - Lauren C LaMonica
- Department of Chronic Disease Epidemiology, Yale School of Public Health, New Haven, CT, United States
| | | | - Courtney C Choy
- International Health Institute, Department of Epidemiology, School of Public Health, Brown University, Providence, RI, United States
| | - Scott E Crouter
- Department of Kinesiology, Recreation, and Sport Studies, The University of Tennessee Knoxville, Knoxville, TN, United States
| | - Susan Redline
- Departments of Medicine, Brigham and Women's Hospital and Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, United States
| | - Ranjan Deka
- Department of Environmental Health, College of Medicine, University of Cincinnati, Cincinnati, OH, United States
| | - Erin E Kershaw
- Division of Endocrinology, Department of Medicine, University of Pittsburgh, Pittsburgh, PA, United States
| | - Zsolt Urban
- Department of Human Genetics, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, United States
| | - Ryan L Minster
- Department of Human Genetics, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, United States
| | - Daniel E Weeks
- Department of Human Genetics, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, United States
| | - Stephen T McGarvey
- International Health Institute, Department of Epidemiology, School of Public Health, Brown University, Providence, RI, United States
- Department of Anthropology, Brown University, Providence, RI, United States
| |
Collapse
|
9
|
da Costa AX, Yu MCZ, de Freitas D, Cristovam PC, LaMonica LC, Dos Santos VR, Gomes JAP. Microbial Cross-contamination in Multidose Eyedrops: The Impact of Instillation Angle and Bottle Geometry. Transl Vis Sci Technol 2020; 9:7. [PMID: 32832214 PMCID: PMC7414607 DOI: 10.1167/tvst.9.7.7] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Accepted: 01/23/2020] [Indexed: 01/05/2023] Open
Abstract
Purpose To evaluate the impact of instillation angle and nozzle tip geometry on cross-contamination risk of multidose ocular solution bottles. Methods Pseudomonas aeruginosa solution was passed exclusively on the outside of the nozzle to simulate contamination on the exterior of topical agents. Three drops were administered from angles of 90° and 45° from bottles with either a round or sharp tip geometry, and the cultures were examined for growth. Two-hundred sixteen cultures from nine lubricant eyedrop brands currently existing in the Brazilian market were assessed for bacterial growth. Results After seven days, bacterial contamination was detected in 53.7% of cultures when drops were administered at 90° and in 70.4% of cultures at 45°. Eyedrops collected from a rounded nozzle tip and an instillation angle of 90° transmitted bacteria in 69.4% of cases, whereas those administered from a sharp tip transmitted bacteria in only 22.2% of cases (P = 0.001). At an instillation angle of 45°, contamination was identified in 83.3% of bottles with a rounded tip geometry and in only eight of 18 bottles (44.4%) from those with a sharp nozzle geometry (P = 0.005). Conclusions Adjusting the instillation angle of eyedrop solutions to 90°, as well as using a nozzle geometry that prevents flow of the solution to the side of the bottle, significantly reduced contamination rates. Translational Relevance Standardizing drop bottles and adjusting delivery angle shows promise in reducing contamination rates and may critically impact the quality of care for patients requiring topical therapeutic agents.
Collapse
Affiliation(s)
- Alexandre Xavier da Costa
- Department of Ophthalmology and Visual Sciences, Federal University of São Paulo (UNIFESP), São Paulo, Brazil
| | - Maria Cecilia Zorat Yu
- Department of Ophthalmology and Visual Sciences, Federal University of São Paulo (UNIFESP), São Paulo, Brazil
| | - Denise de Freitas
- Department of Ophthalmology and Visual Sciences, Federal University of São Paulo (UNIFESP), São Paulo, Brazil
| | - Priscila Cardoso Cristovam
- Department of Ophthalmology and Visual Sciences, Federal University of São Paulo (UNIFESP), São Paulo, Brazil
| | - Lauren C LaMonica
- Department of Chronic Disease Epidemiology, Yale School of Public Health, New Haven, CT, USA
| | - Vagner Rogerio Dos Santos
- Department of Ophthalmology and Visual Sciences, Federal University of São Paulo (UNIFESP), São Paulo, Brazil
| | - José Alvaro Pereira Gomes
- Department of Ophthalmology and Visual Sciences, Federal University of São Paulo (UNIFESP), São Paulo, Brazil
| |
Collapse
|
10
|
Rebane AA, Ziltener P, LaMonica LC, Bauer AH, Zheng H, López-Montero I, Pincet F, Rothman JE, Ernst AM. Liquid-liquid phase separation of the Golgi matrix protein GM130. FEBS Lett 2019; 594:1132-1144. [PMID: 31833055 PMCID: PMC7160038 DOI: 10.1002/1873-3468.13715] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Revised: 11/26/2019] [Accepted: 12/02/2019] [Indexed: 01/22/2023]
Abstract
Golgins are an abundant class of peripheral membrane proteins of the Golgi. These very long (50–400 nm) rod‐like proteins initially capture cognate transport vesicles, thus enabling subsequent SNARE‐mediated membrane fusion. Here, we explore the hypothesis that in addition to serving as vesicle tethers, Golgins may also possess the capacity to phase separate and, thereby, contribute to the internal organization of the Golgi. GM130 is the most abundant Golgin at the cis Golgi. Remarkably, overexpressed GM130 forms liquid droplets in cells analogous to those described for numerous intrinsically disordered proteins with low complexity sequences, even though GM130 is neither low in complexity nor intrinsically disordered. Virtually pure recombinant GM130 also phase‐separates into dynamic, liquid‐like droplets in close to physiological buffers and at concentrations similar to its estimated local concentration at the cis Golgi.
Collapse
Affiliation(s)
| | - Pascal Ziltener
- Department of Cell Biology, Yale School of Medicine, New Haven, CT, USA
| | - Lauren C LaMonica
- Department of Cell Biology, Yale School of Medicine, New Haven, CT, USA
| | - Antonia H Bauer
- Department of Cell Biology, Yale School of Medicine, New Haven, CT, USA
| | - Hong Zheng
- Department of Cell Biology, Yale School of Medicine, New Haven, CT, USA
| | - Iván López-Montero
- Dto. Química Física, Universidad Complutense de Madrid, Spain.,Instituto de Investigación Hospital Doce de Octubre (i+12), Madrid, Spain
| | - Frederic Pincet
- Department of Cell Biology, Yale School of Medicine, New Haven, CT, USA.,Laboratoire de Physique de l'Ecole Normale Supérieure, CNRS, PSL Research University, Université Paris Diderot Sorbonne Paris Cité, Sorbonne Universités UPMC Univ, Paris, France
| | - James E Rothman
- Department of Cell Biology, Yale School of Medicine, New Haven, CT, USA
| | - Andreas M Ernst
- Department of Cell Biology, Yale School of Medicine, New Haven, CT, USA
| |
Collapse
|
11
|
LaMonica LC, Hawley NL, Bhardwaj MK, Naseri T, Reupena MS, Ramsey DJ. Nonmydriatic fundus photography in a high-risk population of Samoans with diabetes: The Soifua Manuia eye screening program. Clin Exp Ophthalmol 2019; 47:954-956. [PMID: 31034672 DOI: 10.1111/ceo.13527] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Accepted: 04/14/2019] [Indexed: 02/07/2023]
Affiliation(s)
- Lauren C LaMonica
- Department of Chronic Disease Epidemiology, Yale School of Public Health, New Haven, Connecticut
| | - Nicola L Hawley
- Department of Chronic Disease Epidemiology, Yale School of Public Health, New Haven, Connecticut
| | - Mahesh K Bhardwaj
- Department of Ophthalmology, Lahey Hospital & Medical Center, Burlington, Massachusetts
| | | | | | - David J Ramsey
- Department of Ophthalmology, Lahey Hospital & Medical Center, Burlington, Massachusetts.,Department of Ophthalmology, Tufts University School of Medicine, Boston, Massachusetts
| |
Collapse
|