1
|
Zouache MA, Faust CD, Silvestri V, Akafo S, Lartey S, Mehta R, Carroll J, Silvestri G, Hageman GS, Amoaku WM. Retinal and Choroidal Thickness in an Indigenous Population from Ghana: Comparison with Individuals with European or African Ancestry. OPHTHALMOLOGY SCIENCE 2024; 4:100386. [PMID: 37868802 PMCID: PMC10585639 DOI: 10.1016/j.xops.2023.100386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 07/17/2023] [Accepted: 08/14/2023] [Indexed: 10/24/2023]
Abstract
Purpose To evaluate the thickness of the macular retina and central choroid in an indigenous population from Ghana, Africa and to compare them with those measured among individuals with European or African ancestry. Design Cross-sectional study, systematic review, and meta-analyses. Participants Forty-two healthy Ghanaians, 37 healthy individuals with European ancestry, and an additional 1427 healthy subjects with African ancestry from previously published studies. Methods Macular retinal thickness in the fovea, parafovea, and perifovea and central choroidal thickness were extracted from OCT volume scans. Associations with ethnicity, age, and sex were assessed using mixed-effect regression models. Monte Carlo simulations were performed to determine the sensitivity of significant associations to additional potential confounders. Pooled estimates of retinal thickness among other groups with African ancestry were generated through systematic review and meta-analyses. Main Outcome Measures Macular retinal thickness and central choroidal thickness and their association with ethnicity, age, and sex. Results When adjusted for age and sex, the macular retina and central choroid of Ghanaians are significantly thinner as compared with subjects with European ancestry (P < 0.001). A reduction in retinal and choroidal thickness is observed with age, although this effect is independent of ethnicity. Meta-analyses indicate that retinal thickness among Ghanaians differs markedly from that of African Americans and other previously reported indigenous African populations. Conclusions The thickness of the retina among Ghanaians differs not only from those measured among individuals with European ancestry, but also from those obtained from African Americans. Normative retinal and choroidal parameters determined among individuals with African or European ancestry may not be sufficient to describe indigenous African populations. Financial Disclosures Proprietary or commercial disclosure may be found in the Footnotes and Disclosures at the end of this article.
Collapse
Affiliation(s)
- Moussa A. Zouache
- Sharon Eccles Steele Center for Translational Medicine, John A. Moran Eye Center, Department of Ophthalmology & Visual Sciences, University of Utah, Salt Lake City, Utah
| | - Caitlin D. Faust
- Sharon Eccles Steele Center for Translational Medicine, John A. Moran Eye Center, Department of Ophthalmology & Visual Sciences, University of Utah, Salt Lake City, Utah
| | | | - Stephen Akafo
- Unit of Ophthalmology, Department of Surgery, University of Ghana Medical School, Accra, Ghana
| | - Seth Lartey
- Eye Unit, Eye Ear Nose and Throat Department, Komfo Anokye Teaching Hospital and Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Rajnikant Mehta
- Research Design Service, East Midlands (RDS EM), University of Nottingham, Nottingham, UK
| | - Joseph Carroll
- Department of Ophthalmology & Visual Sciences, Medical College of Wisconsin Eye Institute, Milwaukee, Wisconsin
| | - Giuliana Silvestri
- Ophthalmology Department, Belfast Health and Social Care Trust, Belfast, UK
| | - Gregory S. Hageman
- Sharon Eccles Steele Center for Translational Medicine, John A. Moran Eye Center, Department of Ophthalmology & Visual Sciences, University of Utah, Salt Lake City, Utah
| | - Winfried M. Amoaku
- Academic Ophthalmology and Visual Sciences, Mental Health & Clinical Neurosciences (Academic Unit 1), University Hospital, QMC, Nottingham, UK
| |
Collapse
|
2
|
Dat DT, Hien NDTN, Quan NN, Tung MQ, Tam HC, Hung BV. Current Trends in Clinical Characteristics, Diagnosis, and Treatment of Polypoidal Choroidal Vasculopathy: A Perspective from Vietnam. J Clin Med 2022; 11:jcm11164678. [PMID: 36012915 PMCID: PMC9410352 DOI: 10.3390/jcm11164678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 07/29/2022] [Accepted: 08/03/2022] [Indexed: 11/16/2022] Open
Abstract
Polypoidal choroidal vasculopathy (PCV) is a common choroidal disease in the Asian population including Vietnam and is characterized by subretinal red-orange nodules, pigmented epithelium detachment, and massive subretinal hemorrhage. The recent focus on PCV in Vietnam can be attributed to advancements in PCV diagnosis and treatment. However, there is a scarcity of published literature and clinical data on PCV in the Vietnamese population, highlighting a key knowledge gap in this region. In order to address this gap, we gathered the opinions of experienced clinicians and retinal experts in Vietnam and reviewed available medical literature with the aim of: (i) providing an overview of PCV in the Vietnamese population—in terms of epidemiology, clinical characteristics, and management; (ii) tailoring international/national guidelines for the diagnosis and management of PCV, in line with available resources and medical equipment in Vietnam; and (iii) identifying gaps in clinical data in order to guide future PCV research in Vietnam and other countries with similar clinical conditions. The present review will enable healthcare providers and researchers to gain insight into current clinical practices and the limitations of PCV management in Vietnam and provide optimal and effective solutions.
Collapse
Affiliation(s)
- Dang Tran Dat
- Outpatient Department, Vietnam National Eye Hospital, 85 Ba Trieu, Nguyen Du Ward, Hai Ba Trung District, Hanoi 100000, Vietnam
- Correspondence: ; Tel.: +84-903-555-986
| | - Nguyen Do Thi Ngoc Hien
- Department of Ophthalmology, Hanoi Medical University, 1 Ton That Tung Street, Hanoi 100000, Vietnam
| | - Nguyen Nhu Quan
- Phuong Dong International Eye Center, 71 Ngo Thoi Nhiem Street, District 3, Ho Chi Minh City 700000, Vietnam
| | - Mai Quoc Tung
- Department of Ophthalmology, Hanoi Medical University, 1 Ton That Tung Street, Hanoi 100000, Vietnam
| | - Hoang Chi Tam
- Ophthalmology and Refractive Surgery Department, FV Hospital, 6 Nguyen Luong Bang Street, Phu My Hung, District 7, Ho Chi Minh City 700000, Vietnam
| | - Bui Viet Hung
- Vitreoretial Department, Vietnam National Eye Hospital, 85 Ba Trieu, Nguyen Du Ward, Hai Ba Trung District, Hanoi 100000, Vietnam
| |
Collapse
|
3
|
REAL-WORLD EFFECTIVENESS AND SAFETY OF RANIBIZUMAB TREATMENT IN PATIENTS WITH AND WITHOUT POLYPOIDAL CHOROIDAL VASCULOPATHY: Twelve-Month Results From the LUMINOUS Study. Retina 2021; 40:1529-1539. [PMID: 31385918 PMCID: PMC7392585 DOI: 10.1097/iae.0000000000002624] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Supplemental Digital Content is Available in the Text. Twelve-month results from LUMINOUS support the use of ranibizumab as an effective first-line therapy for polypoidal choroidal vasculopathy. Higher baseline visual acuity and adequate injection frequency were associated with better visual acuity outcomes. No new safety signals were identified. Purpose: To evaluate the real-world effectiveness and safety of intravitreal ranibizumab 0.5 mg in treatment-naive patients with and without polypoidal choroidal vasculopathy (PCV). Methods: Assessment of neovascular age-related macular degeneration patients with or without PCV after 12 months of ranibizumab treatment during the LUMINOUS study. Outcome measures were visual acuity and central retinal thickness changes from baseline and the rate of ocular adverse events. Results: At baseline, 572 and 5,644 patients were diagnosed with and without PCV, respectively. The mean visual acuity gain from baseline at Month 12 in the PCV and non-PCV groups was +5.0 and +3.0 letters, respectively; these gains were achieved with a mean of 4.4 and 5.1 ranibizumab injections. Eighty percent of PCV patients and 72.2% of non-PCV patients who had baseline visual acuity ≥73 letters maintained this level of vision at Month 12; 20.6% and 17.9% of patients with baseline visual acuity <73 letters achieved visual acuity ≥73 letters in these groups. Greater reductions in central retinal thickness from baseline were also observed for the PCV group versus the non-PCV group. The rate of serious ocular adverse events was 0.7% (PCV group) and 0.9% (non-PCV group). Conclusion: LUMINOUS confirms the effectiveness and safety of ranibizumab in treatment-naive patients with PCV.
Collapse
|
4
|
Xu D, Uhr J, Patel SN, Pandit RR, Jenkins TL, Khan MA, Ho AC. Sociodemographic Factors Influencing Rhegmatogenous Retinal Detachment Presentation and Outcome. Ophthalmol Retina 2021; 5:337-341. [PMID: 32771613 DOI: 10.1016/j.oret.2020.08.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 07/27/2020] [Accepted: 08/03/2020] [Indexed: 06/11/2023]
Abstract
PURPOSE The impact of sociodemographic factors on the presentation and outcomes of rhegmatogenous retinal detachment (RRD) in the United States has not been described. We analyzed the impact of these factors on the presenting fovea-on or off status of RRD, single operation anatomic success (SOAS) of repair, and postoperative visual acuity (VA). DESIGN Retrospective, single-center, cohort study. PARTICIPANTS Participants included 4061 patients from Wills Eye Hospital/Mid Atlantic Retina from February 2015 to February 2020. METHODS Sociodemographic factors including age, gender, race, and regional mean household income (MHI) as determined by ZIP code were recorded. The VA at baseline and 12 months post-RRD repair was recorded. Multiple regression analysis was used to evaluate the relationship between sociodemographic factors to fovea-on or off presentation of RRD, SOAS, and 12-month VA. MAIN OUTCOME MEASURES Foveal attachment at presentation of RRD, SOAS, and 12-month VA. RESULTS Older age (odds ratio [OR], 1.34 per decade, 95% confidence interval [CI], 1.27-1.41, P < 0.001), male gender (OR, 1.27, 95% CI, 1.11-1.45, P < 0.001), non-White race (OR, 2.41, 95% CI, 1.92-3.03, P < 0.001), and lower MHI (OR, 0.94 per $10 000, 95% CI, 0.91-0.98, P = 0.005) were independent risk factors for fovea-off presentation of RD. The need for reoperation to repair RRD within 90 days was independently associated with fovea-off presentation (OR, 1.47, 95% CI, 1.24-1.74, P < 0.001) and non-White race (OR, 1.72, 95% CI, 1.27-2.39, P < 0.001). Finally, 12-month postoperative VA was worse in patients who were fovea-off (P < 0.001), older (P = 0.041), male (P = 0.038), and non-White (P = 0.007) but was not related to MHI (P = 0.24). CONCLUSIONS These findings reveal associations between the sociodemographic factors and the presentation and outcomes of RRD. Physicians should be aware that socioeconomic disparities can negatively impact the prognosis of patients with RRD. Further study confirming these findings and efforts to mitigate their effects are warranted and will be of interest to the greater ophthalmology community.
Collapse
Affiliation(s)
- David Xu
- The Retina Service, Wills Eye Hospital, Thomas Jefferson University Hospitals, Philadelphia, Pennsylvania.
| | - Joshua Uhr
- The Retina Service, Wills Eye Hospital, Thomas Jefferson University Hospitals, Philadelphia, Pennsylvania
| | - Samir N Patel
- The Retina Service, Wills Eye Hospital, Thomas Jefferson University Hospitals, Philadelphia, Pennsylvania
| | - Ravi R Pandit
- The Retina Service, Wills Eye Hospital, Thomas Jefferson University Hospitals, Philadelphia, Pennsylvania
| | - Thomas L Jenkins
- The Retina Service, Wills Eye Hospital, Thomas Jefferson University Hospitals, Philadelphia, Pennsylvania
| | - M Ali Khan
- The Retina Service, Wills Eye Hospital, Thomas Jefferson University Hospitals, Philadelphia, Pennsylvania
| | - Allen C Ho
- The Retina Service, Wills Eye Hospital, Thomas Jefferson University Hospitals, Philadelphia, Pennsylvania
| |
Collapse
|
5
|
Simão JM, Farinha CV, Marques JP, Nunes S, Pires IM, Cachulo ML, Figueira JP, Murta JN, Silva RM. Polypoidal Choroidal Vasculopathy in Caucasians: Morphological Findings from Multimodal Retinal Imaging. Ophthalmologica 2021; 244:315-325. [PMID: 33596579 DOI: 10.1159/000515295] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2020] [Accepted: 02/10/2021] [Indexed: 11/19/2022]
Abstract
PURPOSE The aim of the study was to characterize the morphological features of polypoidal choroidal vasculopathy (PCV) in a large Caucasian population. METHODS We conducteda multicenter, cross-sectional study of treatment-naïve patients with PCV. Baseline fundus photography, spectral-domain optical coherence tomography (SD-OCT), fluorescein angiography (FA), and indocyanine green angiography (ICGA) were assessed by trained medical graders. Typical PCV features were explored, and retinal thickness (RT) and choroidal thickness (CT) measurements were performed. RESULTS Seventy-nine eyes of 73 patients (mean age, 72.6 ± 11.9 years) were included. ICGA identified macular polyps in 89.9% of cases. SD-OCT revealed mostly subretinal fluid (93.6%) and a retinal pigment epithelium (RPE) detachment in 91.4%, with sharp protrusion in 67.0% of cases. Polyp-like structures were seen in 74.3% of cases, mostly adherent to an elevated RPE (69.6%). Type 1 neovascularization (NV) was identified in 74.7% of patients, while 16.5% had a mixed NV. The mean macular CT was 220.9 ± 83.2 μm (range, 67.9-403.6). Diffuse and focal pachychoroid were observed in 26.6 and 30.4% of patients, respectively. Soft drusen were reported in 62.0% of cases, but retinal hemorrhage occurred in only 19.0% of cases. CONCLUSION The morphological features of PCV in Caucasians are similar to those reported in Asians. Pachychoroid signs were found in nearly half of our cohort. However, the mean age at presentation, high prevalence of soft drusen, and low prevalence of large subretinal hemorrhages make PCV closer to age-related macular degeneration in this ethnic group.
Collapse
Affiliation(s)
- Jorge M Simão
- Department of Ophthalmology, Centro Hospitalar e Universitário de Coimbra (CHUC), Coimbra, Portugal.,Association for Innovation and Biomedical Research on Light and Image (AIBILI), Coimbra, Portugal
| | - Cláudia V Farinha
- Department of Ophthalmology, Centro Hospitalar e Universitário de Coimbra (CHUC), Coimbra, Portugal.,Association for Innovation and Biomedical Research on Light and Image (AIBILI), Coimbra, Portugal.,Coimbra Institute for Clinical and Biomedical Research (iCBR), Faculty of Medicine, University of Coimbra, Coimbra, Portugal
| | - João P Marques
- Department of Ophthalmology, Centro Hospitalar e Universitário de Coimbra (CHUC), Coimbra, Portugal.,Association for Innovation and Biomedical Research on Light and Image (AIBILI), Coimbra, Portugal.,Coimbra Institute for Clinical and Biomedical Research (iCBR), Faculty of Medicine, University of Coimbra, Coimbra, Portugal.,Clinical Academic Center of Coimbra (CACC), Coimbra, Portugal
| | - Sandrina Nunes
- Association for Innovation and Biomedical Research on Light and Image (AIBILI), Coimbra, Portugal
| | - Isabel M Pires
- Department of Ophthalmology, Centro Hospitalar e Universitário de Coimbra (CHUC), Coimbra, Portugal.,Association for Innovation and Biomedical Research on Light and Image (AIBILI), Coimbra, Portugal.,Coimbra Institute for Clinical and Biomedical Research (iCBR), Faculty of Medicine, University of Coimbra, Coimbra, Portugal
| | - Maria L Cachulo
- Department of Ophthalmology, Centro Hospitalar e Universitário de Coimbra (CHUC), Coimbra, Portugal.,Association for Innovation and Biomedical Research on Light and Image (AIBILI), Coimbra, Portugal.,Coimbra Institute for Clinical and Biomedical Research (iCBR), Faculty of Medicine, University of Coimbra, Coimbra, Portugal
| | - João P Figueira
- Department of Ophthalmology, Centro Hospitalar e Universitário de Coimbra (CHUC), Coimbra, Portugal.,Association for Innovation and Biomedical Research on Light and Image (AIBILI), Coimbra, Portugal.,Coimbra Institute for Clinical and Biomedical Research (iCBR), Faculty of Medicine, University of Coimbra, Coimbra, Portugal
| | - Joaquim N Murta
- Department of Ophthalmology, Centro Hospitalar e Universitário de Coimbra (CHUC), Coimbra, Portugal.,Coimbra Institute for Clinical and Biomedical Research (iCBR), Faculty of Medicine, University of Coimbra, Coimbra, Portugal.,Clinical Academic Center of Coimbra (CACC), Coimbra, Portugal.,Center for Innovative Biomedicine and Biotechnology (CIBB), University of Coimbra, Coimbra, Portugal
| | - Rufino M Silva
- Department of Ophthalmology, Centro Hospitalar e Universitário de Coimbra (CHUC), Coimbra, Portugal.,Association for Innovation and Biomedical Research on Light and Image (AIBILI), Coimbra, Portugal.,Coimbra Institute for Clinical and Biomedical Research (iCBR), Faculty of Medicine, University of Coimbra, Coimbra, Portugal.,Clinical Academic Center of Coimbra (CACC), Coimbra, Portugal.,Center for Innovative Biomedicine and Biotechnology (CIBB), University of Coimbra, Coimbra, Portugal
| |
Collapse
|
6
|
Polypoidal Choroidal Vasculopathy in Congolese Patients. J Ophthalmol 2020; 2020:4103871. [PMID: 32051763 PMCID: PMC6995324 DOI: 10.1155/2020/4103871] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Accepted: 12/21/2019] [Indexed: 12/26/2022] Open
Abstract
Purpose Polypoidal choroidal vasculopathy (PCV) is a visually debilitating disease that mostly affects people of African and Asian heritage. Indocyanine green angiography (ICGA) is the recommended exploratory method for definitive diagnosis. The disease has been extensively described in Asians and Caucasians, but not in Africans. This study was conducted to document the clinical presentation and optical coherence tomography features of polypoidal choroidal vasculopathy (PCV) in Congolese patients. Methods A prospective case series of patients with PCV was performed between January 2017 and June 2019. Routine ocular examination was performed including best corrected visual acuity measurement, slit-lamp examination, dilated direct fundoscopy, and spectral domain optical coherence tomography (OCT). The diagnosis was based on a combination of clinical and OCT signs. Results Fourteen patients were diagnosed with PCV during this period. The average age was 64.7 ± 6.9 years. There were 8 females. Ten (71.4%) patients had systemic hypertension. Most patients (n = 9, 64.3%) had bilateral involvement. Blurred vision was the most common complaint (71.4%). The main clinical presentation was subretinal exudates, seen in 19 (82.6%) eyes of 11 (78.6%) patients and subretinal hemorrhage in 10 (43.5%) eyes. Macular localization was found in 16 eyes (69.5%) of 12 (85.7%) patients. Drusen were observed in 35.7% of the patients. On OCT imaging, thumb-like pigment epithelial detachment and subretinal exudation were the most frequent features, observed in 92.9% and 71.4% of the patients, respectively. Conclusions PCV in Congolese patients showed features that are more similar to those observed in Caucasians. In this setting where indocyanine green angiography is not available, OCT facilitates the diagnosis of PCV.
Collapse
|
7
|
Kokame GT, Liu K, Kokame KA, Kaneko KN, Omizo JN. Clinical Characteristics of Polypoidal Choroidal Vasculopathy and Anti-Vascular Endothelial Growth Factor Treatment Response in Caucasians. Ophthalmologica 2019; 243:178-186. [PMID: 31707394 DOI: 10.1159/000503834] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Accepted: 10/01/2019] [Indexed: 11/19/2022]
Abstract
BACKGROUND/AIMS To identify the clinical characteristics of polypoidal choroidal vasculopathy (PCV) in Caucasian patients and assess the prevalence of anti-vascular endothelial growth factor (anti-VEGF) resistance. METHODS This involved a retrospective chart review of Caucasian patients diagnosed with PCV and utilizing indocyanine green angiography with the scanning laser ophthalmoscope. Data collected included patients' demographics, disease characteristics, and treatment response. RESULTS There were 54 eyes of 49 patients with PCV; 51.0% were male and 49.0% were female with a mean age of 72.9 years. Forty-four patients (89.8%) had PCV unilaterally and 10.2% (5 patients) had PCV bilaterally. PCV was located in the macula in 79.6%, in the peripapillary region in 16.7%, and in both regions in 3.7%. PCV commonly presents with serous detachment (66.7%), retinal pigment epithelial detachment (RPED) (51.9%) and subretinal hemorrhage (37.0%). Twenty-nine eyes were included in the treatment response analysis, with 18 eyes (62.1%) showing persistent disease activity after 3 initial injections of anti-VEGF treatment. CONCLUSION PCV in Caucasian patients is more often unilateral and presents more commonly in the macular region than the peripapillary region. Serous detachment and RPED are the 2 most common findings. Resistance to current anti-VEGF treatment was noted frequently; it is thus extremely important to identify this subtype of type I subretinal neovascularization.
Collapse
Affiliation(s)
- Gregg T Kokame
- Division of Ophthalmology, Department of Surgery, University of Hawaii School of Medicine, Honolulu, Hawaii, USA, .,The Retina Center at Pali Momi, Aiea, Hawaii, USA, .,Retina Consultants of Hawaii, Aiea, Hawaii, USA, .,Hawaii Macula and Retina Institute, Aiea, Hawaii, USA, .,University of Hawaii John A. Burns School of Medicine, Honolulu, Hawaii, USA,
| | - Keke Liu
- The Retina Center at Pali Momi, Aiea, Hawaii, USA.,Retina Consultants of Hawaii, Aiea, Hawaii, USA.,Hawaii Macula and Retina Institute, Aiea, Hawaii, USA.,University of Hawaii John A. Burns School of Medicine, Honolulu, Hawaii, USA
| | - Kelli A Kokame
- The Retina Center at Pali Momi, Aiea, Hawaii, USA.,Retina Consultants of Hawaii, Aiea, Hawaii, USA.,Hawaii Macula and Retina Institute, Aiea, Hawaii, USA
| | - Kyle N Kaneko
- The Retina Center at Pali Momi, Aiea, Hawaii, USA.,Retina Consultants of Hawaii, Aiea, Hawaii, USA.,Hawaii Macula and Retina Institute, Aiea, Hawaii, USA
| | - Jase N Omizo
- The Retina Center at Pali Momi, Aiea, Hawaii, USA.,Retina Consultants of Hawaii, Aiea, Hawaii, USA.,Hawaii Macula and Retina Institute, Aiea, Hawaii, USA
| |
Collapse
|
8
|
Subhi Y, Nielsen MK, Molbech CR, Liisborg C, Søndergaard HB, Sellebjerg F, Sørensen TL. The transcriptome of peripheral blood mononuclear cells in patients with clinical subtypes of late age-related macular degeneration. IMMUNITY & AGEING 2019; 16:20. [PMID: 31428180 PMCID: PMC6696679 DOI: 10.1186/s12979-019-0160-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/28/2019] [Accepted: 08/08/2019] [Indexed: 12/29/2022]
Abstract
Background Peripheral blood mononuclear cells (PBMCs) are implicated in the pathogenesis of age-related macular degeneration (AMD). We here mapped the global gene transcriptome of PBMCs from patients with different clinical subtypes of late AMD. Results We sampled fresh venous blood from patients with geographic atrophy (GA) secondary to AMD without choroidal neovascularizations (n = 19), patients with neovascular AMD without GA (n = 38), patients with polypoidal choroidal vasculopathy (PCV) (n = 19), and aged control individuals with healthy retinae (n = 20). We isolated PBMCs, extracted RNA, and used microarray to investigate gene expression. Volcano plots identified statistically significant differentially expressed genes (P < 0.05) at a high magnitude (≥30% higher/lower) for GA (62 genes), neovascular AMD (41 genes), and PCV (41 genes). These clinical subtypes differed substantially across gene expression and the following pathways identified in enrichment analyses. In a subgroup analysis, we investigated presence vs. absence of subretinal fibrosis and found 826 differentially expressed genes (≥30% higher/lower, P < 0.05) with relation to mRNA splicing, endothelial migration, and interleukin-1 signaling. Conclusions We here map the global gene transcriptome of PBMCs related to clinical subtypes of late AMD and find evidence of subtype-specific immunological involvement. Our findings provide a transcriptomic insight into the systemic immunity associated with AMD. Electronic supplementary material The online version of this article (10.1186/s12979-019-0160-0) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Yousif Subhi
- 1Clinical Eye Research Division, Department of Ophthalmology, Zealand University Hospital, Vestermarksvej 23, DK-4000 Roskilde, Denmark
| | - Marie Krogh Nielsen
- 1Clinical Eye Research Division, Department of Ophthalmology, Zealand University Hospital, Vestermarksvej 23, DK-4000 Roskilde, Denmark
| | - Christopher Rue Molbech
- 1Clinical Eye Research Division, Department of Ophthalmology, Zealand University Hospital, Vestermarksvej 23, DK-4000 Roskilde, Denmark.,2Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Charlotte Liisborg
- 1Clinical Eye Research Division, Department of Ophthalmology, Zealand University Hospital, Vestermarksvej 23, DK-4000 Roskilde, Denmark.,2Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Helle Bach Søndergaard
- 3Danish Multiple Sclerosis Center, Copenhagen University Hospital Rigshospitalet, Copenhagen, Denmark
| | - Finn Sellebjerg
- 1Clinical Eye Research Division, Department of Ophthalmology, Zealand University Hospital, Vestermarksvej 23, DK-4000 Roskilde, Denmark.,3Danish Multiple Sclerosis Center, Copenhagen University Hospital Rigshospitalet, Copenhagen, Denmark
| | - Torben Lykke Sørensen
- 1Clinical Eye Research Division, Department of Ophthalmology, Zealand University Hospital, Vestermarksvej 23, DK-4000 Roskilde, Denmark.,2Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| |
Collapse
|
9
|
Cugley DR, Fagan X. The needle, or the knife? Clin Exp Ophthalmol 2018; 46:851-853. [PMID: 30426683 DOI: 10.1111/ceo.13413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Dean R Cugley
- Royal Victorian Eye and Ear Hospital, Centre for Eye Research Australia, Melbourne, Victoria, Australia
| | - Xavier Fagan
- Royal Victorian Eye and Ear Hospital, Centre for Eye Research Australia, Melbourne, Victoria, Australia.,Austin Hospital, Heidelberg, Victoria, Australia
| |
Collapse
|