Phenotype variations of retinal dystrophies caused by mutations in the <i><scp>RLBP</scp>1</i> gene
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Bibliographic record
Abstract
PURPOSE: Mutations in the RLBP1 gene encoding the cellular retinaldehyde-binding protein (CRALBP) cause autosomal recessive progressive retinopathy, such as retinitis punctata albescens (RPA), Bothnia-type dystrophy (BD), Newfoundland rod-cone dystrophy (NFRCD), retinitis pigmentosa (RP) and fundus albipunctatus (FA). We present the clinical heterogeneity and genetic findings of seven patients from five families with RLBP1 mutations, including three novel mutations. METHODS: Seven patients underwent complete ophthalmological examination including psychophysical tests (visual acuity, colour vision, visual field, dark adaptation) and electrophysiology (Ganzfeld and multifocal ERG). Additionally, fundus photography, autofluorescence (FAF) and spectral domain optical coherence tomography (OCT) recordings were performed. Genomic DNA was analysed by high-throughput sequencing for all RP-related genes in a diagnostic set-up. RESULTS: The patients presented with variable phenotypes, including RPA, BD, RP and a mild form of NFRCD. No detectable or severely depressed responses in electrophysiological examinations were seen in all cases. Visual field constriction was variable among individuals. Severely reduced visual acuity was only observed in the patient presenting with BD. The other patients retained mild to moderate reduction of visual function. Despite the morphological differences, central retinal thinning - as a common feature - could be observed. CONCLUSIONS: The fact that different mutations in RLBP1 are correlated with quite different morphological and functional characteristics outlines the complexity of the protein. Identifying new mutations and comparing the different phenotypes may help to better understand the function of the protein and the consequences in pathological changes that involve RPE and choroid.
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it