Publications by authors named "Anneke I Den Hollander"

Article Synopsis
  • Age-related macular degeneration (AMD) is a complex eye disease influenced by both genetic factors and involves a subtype called reticular pseudodrusen (RPD), which increases the risk of severe vision loss.* -
  • A genome-wide association study compared genetic data from individuals with AMD and/or RPD to controls, finding significant associations specifically on chromosome 10, while chromosome 1 did not show this correlation in RPD cases.* -
  • The chromosome 10 region includes a long non-coding RNA related to retinal health, highlighting its potential role in retinal thickness and influencing the outer segment of photoreceptors.*
View Article and Find Full Text PDF

Importance: The involvement of chronic inflammation in the pathogenesis of age-related macular degeneration (AMD) opens therapeutic possibilities to AMD management.

Objective: To determine whether Janus kinase inhibitors (JAKis) are associated with a reduced risk of AMD development in patients with autoimmune diseases.

Design, Setting, And Participants: This retrospective observational cohort study used administrative claims data from Merative MarketScan research databases (Commercial and Medicare Supplemental) and Optum Clinformatics Data Mart databases between January 1, 2010, and January 31, 2022.

View Article and Find Full Text PDF
Article Synopsis
  • - This study conducted a genome-wide association analysis on metabolic traits in over 136,000 participants, revealing over 400 genetic loci that influence human metabolism and complex diseases.
  • - Researchers used advanced techniques like nuclear magnetic resonance spectroscopy to link specific genetic variants with how they affect lipoprotein metabolism and other metabolic processes.
  • - The findings highlight the genetic connections between metabolism and conditions such as hypertension, providing valuable data for further research on metabolic-related diseases.
View Article and Find Full Text PDF

Purpose: To describe clinical characteristics and management in a large cohort of patients with retinal detachment due to a giant retinal tear (GRT).

Methods: We performed a retrospective cohort study with 222 eyes of 206 patients with a primary and non-traumatic GRTs between 2005 and 2022. We analysed the relevant clinical and surgical data from these patients.

View Article and Find Full Text PDF

Purpose: To identify associations of common, low-frequency, and rare variants with advanced age-related macular degeneration (AMD) using whole genome sequencing (WGS).

Methods: WGS data were obtained for 2123 advanced AMD patients (participants of clinical trials for advanced AMD) and 2704 controls (participants of clinical trials for asthma [N = 2518] and Alzheimer's disease [N = 186]), and joint genotype calling was performed, followed by quality control of the dataset. Single variant association analyses were performed for all identified common, low-frequency, and rare variants.

View Article and Find Full Text PDF
Article Synopsis
  • - Geographic atrophy (GA) leads to gradual vision loss due to the deterioration of the retina and surrounding tissues, with limited treatment options available.
  • - Recently FDA-approved complement inhibitors (pegcetacoplan and avacincaptad pegol) showed slight benefits in slowing GA lesion growth based on clinical trials, highlighting the need for further research.
  • - Exploring genetic and molecular biomarkers is crucial in improving early detection and personalized treatment strategies for GA, but more comprehensive studies are needed to fully understand their roles and develop effective therapies.
View Article and Find Full Text PDF
Article Synopsis
  • The study investigates rare genetic variants in complement genes linked to age-related macular degeneration (AMD) to understand their impact on protein structure and function, as existing evidence on these variants is limited.
  • Researchers utilized the International AMD Genomics Consortium (IAMDGC) dataset, which contains over 16,000 AMD cases and nearly 18,000 controls, and improved variant identification by over 30% using Haplotype Reference Consortium (HRC) for imputation.
  • They developed an analytical pipeline to assess the spatial placement of variants within protein structures, predicted their destabilization effects, and tested associations with AMD using statistical methods, confirming the potential relevance of certain variants to the disease.
View Article and Find Full Text PDF

Protein function can be impacted by changes in protein structure stability, but determining which change has impact is complex. Stability can be affected by a large change in the tertiary (3D) structure of the protein or due to free-energy changes caused by single amino acid substitutions. Changes in the DNA sequence can have minor or major impact on protein stability, which can lead to disease.

View Article and Find Full Text PDF

Importance: Idiopathic multifocal choroiditis (MFC) is poorly understood, thereby hindering optimal treatment and monitoring of patients.

Objective: To identify the genes and pathways associated with idiopathic MFC.

Design, Setting, And Participants: This was a case-control genome-wide association study (GWAS) and protein study of blood plasma samples conducted from March 2006 to February 2022.

View Article and Find Full Text PDF

Insights into the pathogenesis of age-related macular degeneration (AMD), a leading cause of blindness, point towards a complex interplay of genetic and lifestyle factors triggering various systemic pathways. This study aimed to characterize metabolomic profiles for AMD and to evaluate their position in the trias with genetics and lifestyle. This study included 5923 individuals from five European studies.

View Article and Find Full Text PDF

Purpose: A protein quantitative trait locus (pQTL) analysis recently revealed a strong association between hemopexin (HPX) levels and genetic variants at the complement factor H () locus. In this study, we aimed to determine HPX plasma levels in patients with age-related macular degeneration (AMD) and to compare them with those in controls. We also investigated whether genetic variants at the locus are associated with HPX plasma levels.

View Article and Find Full Text PDF

Importance: Central serous chorioretinopathy (CSC) is a serous maculopathy of unknown etiology. Two of 3 previously reported CSC genetic risk loci are also associated with AMD. Improved understanding of CSC genetics may broaden our understanding of this genetic overlap and unveil mechanisms in both diseases.

View Article and Find Full Text PDF

Rhegmatogenous retinal detachment (RRD) is a sight threatening condition that warrants immediate surgical intervention. To date, 29 genes have been associated with monogenic disorders involving RRD. In addition, RRD can occur as a multifactorial disease through a combined effect of multiple genetic variants and non-genetic risk factors.

View Article and Find Full Text PDF

Macular degenerations (MDs) are a subgroup of retinal disorders characterized by central vision loss. Knowledge is still lacking on the extent of genetic and nongenetic factors influencing inherited MD (iMD) and age-related MD (AMD) expression. Single molecule Molecular Inversion Probes (smMIPs) have proven effective in sequencing the ABCA4 gene in patients with Stargardt disease to identify associated coding and noncoding variation, however many MD patients still remain genetically unexplained.

View Article and Find Full Text PDF

Purpose: To determine the contribution of common and rare genetic risk variants in families with age-related macular degeneration (AMD).

Design: Case-control study.

Participants: A family cohort (355 affected and 342 unaffected family members from 144 families with AMD) and an unrelated case-control cohort (1078 patients, 952 controls), recruited from the European Genetic Database.

View Article and Find Full Text PDF
Article Synopsis
  • Common SNPs may account for 40-50% of human height variation, and this study identifies 12,111 SNPs linked to height from a large sample of 5.4 million individuals.
  • These SNPs cluster in 7,209 genomic segments, encompassing about 21% of the genome and showing varying densities enriched in relevant genes.
  • While these SNPs explain a substantial portion of height variance in European populations (40-45%), their predictive power is lower (10-24%) in other ancestries, suggesting a need for more research to enhance understanding in diverse populations.
View Article and Find Full Text PDF

Genomic studies in age-related macular degeneration (AMD) have identified genetic variants that account for the majority of AMD risk. An important next step is to understand the functional consequences and downstream effects of the identified AMD-associated genetic variants. Instrumental for this next step are 'omics' technologies, which enable high-throughput characterization and quantification of biological molecules, and subsequent integration of genomics with these omics datasets, a field referred to as systems genomics.

View Article and Find Full Text PDF

Early onset drusen maculopathy (EODM) can lead to advanced macular degeneration at a young age, affecting quality of life. However, the genetic causes of EODM are not well studied. We performed whole genome sequencing in 49 EODM patients.

View Article and Find Full Text PDF
Article Synopsis
  • Researchers studied the genetic connections to blood fats using data from 1.6 million people from different backgrounds to understand why certain fats are higher or lower in the body.
  • They looked at special genes and how they interact in the liver and fat cells, finding that the liver plays a big part in controlling fat levels.
  • Two specific genes, CREBRF and RRBP1, were highlighted as important in understanding how our bodies manage fats due to strong supporting evidence.
View Article and Find Full Text PDF

Age-related macular degeneration (AMD) is a disease that affects the macula - the central part of the retina. It is a leading cause of irreversible vision loss in the elderly. AMD onset is marked by the presence of lipid- and protein-rich extracellular deposits beneath the retinal pigment epithelium (RPE), a monolayer of polarized, pigmented epithelial cells located between the photoreceptors and the choroidal blood supply.

View Article and Find Full Text PDF

Age-related macular degeneration (AMD) is a common eye disease among the elderly in the Western world. AMD is a multifactorial disease, with a strong association with genetic variation in the complement system. One of the AMD-associated variants is the c.

View Article and Find Full Text PDF

Age-related macular degeneration (AMD) is a common eye disease among the elderly in the Western world. AMD is a multifactorial disease, with a strong association with genetic variation in the complement system. One of the AMD-associated variants is the c.

View Article and Find Full Text PDF

Age-related macular degeneration (AMD) is a progressive disease of the macula characterized by atrophy of the retinal pigment epithelium (RPE) and photoreceptor degeneration, leading to severe vision loss at advanced stages in the elderly population. Impaired reverse cholesterol transport (RCT) as well as intracellular lipid accumulation in the RPE are implicated in AMD pathogenesis. Here, we focus on ATP-binding cassette transporter A1 (ABCA1), a major cholesterol transport protein in the RPE, and analyze conditions that lead to ABCA1 dysregulation in induced pluripotent stem cell (iPSC)-derived RPE cells (iRPEs).

View Article and Find Full Text PDF

Purpose: Age-related maculopathy susceptibility 2 (ARMS2) is considered the most enigmatic of the genes for age-related macular degeneration (AMD). We investigated the phenotypic course and spectrum of AMD for the risk haplotype at the ARMS2 and high-temperature requirement A serine peptidase 1 (HTRA1) locus in a large European consortium.

Design: Pooled analysis of 4 case-control and 6 cohort studies.

View Article and Find Full Text PDF