Results 41 to 50 of about 12,483 (262)

Organ‐specific redox imbalances in spinal muscular atrophy mice are partially rescued by SMN antisense oligonucleotides

open access: yesFEBS Letters, EarlyView.
We identified a systemic, progressive loss of protein S‐glutathionylation—detected by nonreducing western blotting—alongside dysregulation of glutathione‐cycle enzymes in both neuronal and peripheral tissues of Taiwanese SMA mice. These alterations were partially rescued by SMN antisense oligonucleotide therapy, revealing persistent redox imbalance as ...
Sofia Vrettou, Brunhilde Wirth
wiley   +1 more source

Calpain small subunit homodimerization is robust and calcium‐independent

open access: yesFEBS Letters, EarlyView.
Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy   +4 more
wiley   +1 more source

High-Order Aberrations: A Key Factor in Accommodative Dysfunctions

open access: yesApplied Sciences
This study investigated the relationship between high-order aberrations (HOAs) and accommodative dysfunctions by analyzing their changes with accommodation.
Jessica Gomes, Sandra Franco
doaj   +1 more source

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

open access: yesFEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa   +5 more
wiley   +1 more source

Effects of Visual Display Unit on Ocular Accommodation in Young Adults

open access: yesBritish and Irish Orthoptic Journal
Purpose: To evaluate the impact of gaming on ocular accommodative parameters. Methods: A comparative and experimental study was conducted among non-orthoptic university students for a duration of six months from September 2023 to March 2024. After a half-
Vishal Biswas, Roshni Majumder
doaj   +1 more source

The quest for the human ocular accommodation mechanism

open access: yesActa Ophthalmologica, 2019
AbstractWe have known the accommodation phenomenon since 400 BC. Hypotheses about its mechanisms varied widely for two millennia. Early in the 17th century, when people became more aware of ophthalmic optics, Scheiner and Descartes were close to solving that accommodation worked by changes in the lens. Others rejected their idea, and people even denied
openaire   +4 more sources

Modulation of Homer1 EVH1 domain internal dynamics by putative autism‐associated mutations

open access: yesFEBS Letters, EarlyView.
The putative autism‐associated M65I and S97L variants of the EVH1 domain of the postsynaptic scaffold protein Homer1 do not exhibit substantial changes in their overall structure or partner binding. Both of them, but especially the M65I variant, show altered internal dynamics relative to the wild‐type domain on the μs‐ms timescale, indicated by the ...
Fanni Farkas   +6 more
wiley   +1 more source

Axial movement of the dual-optic accommodating intraocular lens for the correction of the presbyopia: Optical performance and clinical outcomes

open access: yesJournal of Optometry, 2015
Presbyopia occurs in the aging eye due to changes in the ciliary muscle, zonular fibers, crystalline lens, and an increased lens sclerosis. As a consequence, the capacity of accommodation decreases, which hampers to focus near objects.
Javier Tomás-Juan   +1 more
doaj   +1 more source

Down syndrome: a review of ocular manifestations

open access: yesTherapeutic Advances in Ophthalmology, 2022
Down syndrome is the most common genetically mediated intellectual disability. Although many physiologic and pathologic features of Down syndrome are discussed at length in the literature, the ocular manifestations of Down syndrome have seldom been ...
Abid Haseeb   +7 more
doaj   +1 more source

Sensory control of ocular accommodation

open access: yes, 1988
The investigations described in this thesis have examined how, with particular reference to optical cues, the retinal image is analysed by the brain so as to generate the appropriate signals for controlling accommodation. This line of research involved behavioural studies on trained monkeys (Macaca mulatto), human psychophysical studies, mathematical ...
Flitcroft, D, Flitcroft, Daniel Ian
openaire   +2 more sources

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