In vivo quasi-elastic light scattering detects molecular changes in the lenses of adolescents with Down syndrome.
Exp Eye Res
; 241: 109818, 2024 Apr.
Article
in En
| MEDLINE
| ID: mdl-38422787
ABSTRACT
Down syndrome (DS) is the most common chromosomal disorder in humans. DS is associated with increased prevalence of several ocular sequelae, including characteristic blue-dot cerulean cataract. DS is accompanied by age-dependent accumulation of Alzheimer's disease (AD) amyloid-ß (Aß) peptides and amyloid pathology in the brain and comorbid early-onset Aß amyloidopathy and colocalizing cataracts in the lens. Quasi-elastic light scattering (QLS) is an established optical technique that noninvasively measures changes in protein size distributions in the human lens in vivo. In this cross-sectional study, lenticular QLS correlation time was decreased in adolescent subjects with DS compared to age-matched control subjects. Clinical QLS was consistent with alterations in relative particle hydrodynamic radius in lenses of adolescents with DS. These correlative results suggest that noninvasive QLS can be used to evaluate molecular changes in the lenses of individuals with DS.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Cataract
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Down Syndrome
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Alzheimer Disease
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Lens, Crystalline
Limits:
Adolescent
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Humans
Language:
En
Journal:
Exp Eye Res
/
Exp. eye res
/
Experimental eye research
Year:
2024
Document type:
Article
Affiliation country:
Country of publication: