Sten Andréasson

ORCID: 0000-0003-2264-3421
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About
Contact & Profiles
Research Areas
  • Retinal Development and Disorders
  • Retinal Diseases and Treatments
  • Glaucoma and retinal disorders
  • Retinal and Optic Conditions
  • Retinal and Macular Surgery
  • Photoreceptor and optogenetics research
  • Intraocular Surgery and Lenses
  • Retinopathy of Prematurity Studies
  • Retinal Imaging and Analysis
  • Retinoids in leukemia and cellular processes
  • Connexins and lens biology
  • Energetic Materials and Combustion
  • Cellular transport and secretion
  • Drug-Induced Ocular Toxicity
  • Neuroscience and Neuropharmacology Research
  • Ocular Diseases and Behçet’s Syndrome
  • Ocular Disorders and Treatments
  • Genetic and Kidney Cyst Diseases
  • RNA regulation and disease
  • Electromagnetic Launch and Propulsion Technology
  • Mitochondrial Function and Pathology
  • melanin and skin pigmentation
  • Advanced biosensing and bioanalysis techniques
  • Cell Adhesion Molecules Research
  • Genetic Neurodegenerative Diseases

Lund University
2015-2025

University of Gothenburg
2024

Skåne University Hospital
2011-2023

University of Oulu
2017

McGill University Health Centre
2013

Massachusetts Eye and Ear Infirmary
2013

Harvard University
2013

Swedish Defence Research Agency
1999-2011

Ophthalmology Associates (United States)
2009

Uppsala University Hospital
2008

X linked recessive deafness accounts for only 1.7% of all childhood deafness. Only a few the at least 28 different syndromes associated with hearing impairment have been characterised molecular level. In 1960, large Norwegian family was reported early onset progressive sensorineural deafness, which indexed in McKusick as DFN-1, 304700. No symptoms were described that time. This has restudied clinically. Extensive neurological, neurophysiological, neuroradiological, and biochemical, well...

10.1136/jmg.32.4.257 article EN Journal of Medical Genetics 1995-04-01

Retinal cone photoreceptors mediate fine visual acuity, daylight vision, and color vision. Congenital hereditary conditions in which there is a lack of function humans cause achromatopsia, an autosomal recessive trait, characterized by low photophobia, discrimination. Herein we report the identification mutations PDE6C gene encoding catalytic subunit photoreceptor phosphodiesterase as achromatopsia. Moreover, show that spontaneous mouse mutant cpfl1 features rapid degeneration represents...

10.1073/pnas.0907720106 article EN Proceedings of the National Academy of Sciences 2009-11-04

To determine the proportion of male patients presenting simplex retinal degenerative disease (RD: retinitis pigmentosa [RP] or cone/cone-rod dystrophy [COD/CORD]) with mutations in X-linked degeneration genes RPGR and RP2.Simplex males were defined as no known affected family members. Patients excluded if they had a history parental consanguinity. Blood samples from total 214 diagnosis collected for genetic analysis. The screened RP2 by direct sequencing PCR-amplified genomic DNA.We...

10.1167/iovs.12-11025 article EN Investigative Ophthalmology & Visual Science 2012-11-14

Retinal dystrophies (RD) constitute a group of blinding diseases that are characterized by clinical variability and pronounced genetic heterogeneity. The different nonsyndromic syndromic forms RD can be attributed to mutations in more than 200 genes. Consequently, next generation sequencing (NGS) technologies among the most promising approaches identify RD. We screened large cohort patients comprising 89 independent cases families with various subforms applying NGS platforms. While mutation...

10.1371/journal.pone.0145951 article EN cc-by PLoS ONE 2016-01-14

Objective: To describe the clinical phenotype of juvenile X-linked retinoschisis in patients with different mutations XLRS1 gene.Methods: Thirty 7 were examined.The genotype was determined by molecular genetics, which identified 6 known and 1 novel mutation (exon 5, 489 G→T).Ophthalmologic examination included full-field electroretinogram (ERG) recordings.Results: The fundus appearance showed marked variations between, as well within, families mutations.The ERG demonstrated typical reduction...

10.1001/archopht.118.8.1098 article EN Archives of Ophthalmology 2000-08-01

The purpose of this study was to clinically characterize patients with CNGA3-linked achromatopsia (CNGA3-ACHM) in preparation a gene therapy trial.Thirty-six (age 7-56 years) complete (cACHM) or incomplete (iACHM) CNGA3-ACHM were examined, including detailed psychophysical tests, extended electrophysiology, and assessment morphology by fundus autofluorescence spectral-domain optical coherence tomography (SD-OCT).Mean best-corrected visual acuity 0.78 ± 0.14 logMAR. Color vision tests...

10.1167/iovs.16-20427 article EN cc-by-nc-nd Investigative Ophthalmology & Visual Science 2017-02-03

10.1007/s00417-015-3256-z article EN Graefe s Archive for Clinical and Experimental Ophthalmology 2016-01-08

Introduction: Retinitis pigmentosa (RP) and Leber congenital amaurosis (LCA) are two groups of inherited retinal diseases (IRDs) where the rod photoreceptors degenerate followed by cone retina. A genetic diagnosis for IRDs is challenging since >280 genes associated with these conditions. While whole exome sequencing (WES) commonly used diagnostic facilities, costs required infrastructure prevent its global applicability. Previous studies have shown cost-effectiveness sequence analysis using...

10.3389/fcell.2023.1112270 article EN cc-by Frontiers in Cell and Developmental Biology 2023-02-03

SummaryThe RPGR (retinitis pigmentosa GTPase regulator) gene for RP3, the most frequent genetic subtype of X-linked retinitis (XLRP), has been shown to be mutated in 10%–15% European XLRP patients. We have examined mutations a cohort 80 affected males from apparently unrelated families, by direct sequencing PCR-amplified products genomic DNA. Fifteen different putative disease-causing were identified 17 families; these include four nonsense mutations, one missense mutation, six...

10.1086/301646 article EN cc-by-nc-nd The American Journal of Human Genetics 1997-12-01

<h3>AIMS</h3> To describe the variation of phenotype within families with several individuals Bardet–Biedl syndrome. <h3>METHODS</h3> The phenotypes affected siblings in 11 Scandinavian were compared two or more members who had at least three features: retinal dystrophy, polydactyly, obesity, hypogenitalism, and mental retardation. Individuals without dystrophy excluded. <h3>RESULTS</h3> Intrafamilial expressivity features abnormal radiograms extremities, short stature, paraplegia, dental...

10.1136/bjo.81.5.378 article EN British Journal of Ophthalmology 1997-05-01

Purpose: To characterize the phenotype of members a Swedish family with Best macular dystrophy and two distinct mutations in VMD2. Methods: Venous blood samples were obtained from six screened for Six individuals examined clinically, four whom further investigated full-field electroretinography (ERG), electro-oculography (EOG), multifocal (mfERG), optical coherence tomography (OCT). Results: The VMD2 resulting Arg141His Tyr29stop identified members. Two harbored both mutations, one mutation...

10.1080/13816810600677990 article EN Ophthalmic Genetics 2006-01-01

Mutations in the gene encoding catalytic subunit of cone photoreceptor phosphodiesterase (PDE6C) have been recently reported patients with autosomal recessive inherited achromatopsia (ACHM) and early-onset dysfunction. Here we present results a comprehensive study on PDE6C mutations including mutation spectrum, its prevalence large cohort ACHM/cone dysfunction patients, clinical phenotype functional characterization mutant proteins. Twelve affected from seven independent families segregating...

10.1093/hmg/ddq517 article EN Human Molecular Genetics 2010-12-01
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