Results 31 to 40 of about 3,672,547 (299)

Automatic Retinal Nerve Fiber Segmentation and the Influence of Intersubject Variability in Ocular Parameters on the Mapping of Retinal Sites to the Pointwise Orientation Angles

Journal of Imaging
The current study investigates the influence of intersubject variability in ocular characteristics on the mapping of visual field (VF) sites to the pointwise directional angles in retinal nerve fiber layer (RNFL) bundle traces.
Diego Luján Villarreal, Adriana Leticia Vera-Tizatl   +1 more
doaj   +1 more source

Causal effect of COVID-19 on optic nerve and visual pathway disorders: genetic evidence of lung-brain axis

Frontiers in Immunology
PurposeTo investigate the potential causal association between COVID-19 exposure and optic nerve and visual pathway disorders through a two-sample bidirectional Mendelian randomization (MR) analysis, and to provide empirical support for the lung-brain ...
Chunge Cao, Qiong Li, Dajun Cai, Chaoyan Yue, Hu Zhao   +4 more
doaj   +1 more source

Visual pathways involvement in clinically isolated syndrome in children [PDF]

International Journal of Ophthalmology, 2015
AIM: To investigate extent and nature of visual pathways involvement in children with clinically isolated syndrome (CIS). METHODS: Forty-seven patients (age 11-17y) with CIS, which later proved to be multiple sclerosis (MS) onset, and 30 controls ...
Vladislav Voitenkov, Natalia Skripchenko, Andrey Klimkin   +2 more
doaj   +1 more source

Neural pathways for visual speech perception

Frontiers in Neuroscience, 2014
This paper examines the questions, what levels of speech can be perceived visually, and how is visual speech represented by the brain? Review of the literature leads to the conclusions that every level of psycholinguistic speech structure (i.e., phonetic
Lynne E Bernstein, Einat eLiebenthal
doaj   +1 more source

Structural Differences Across Multiple Visual Cortical Regions in the Absence of Cone Function in Congenital Achromatopsia

Frontiers in Neuroscience, 2021
Most individuals with congenital achromatopsia (ACHM) carry mutations that affect the retinal phototransduction pathway of cone photoreceptors, fundamental to both high acuity vision and colour perception. As the central fovea is occupied solely by cones,
Rebecca Lowndes, Rebecca Lowndes, Barbara Molz, Barbara Molz, Lucy Warriner, Anne Herbik, Pieter B. de Best, Noa Raz, Andre Gouws, Khazar Ahmadi, Rebecca J. McLean, Irene Gottlob, Susanne Kohl, Lars Choritz, John Maguire, Martin Kanowski, Barbara Käsmann-Kellner, Ilse Wieland, Eyal Banin, Netta Levin, Michael B. Hoffmann, Michael B. Hoffmann, Antony B. Morland, Antony B. Morland, Heidi A. Baseler, Heidi A. Baseler, Heidi A. Baseler   +26 more
doaj   +1 more source

Organizing the interface—Plasma membrane architecture and receptor dynamics in virus‐cell interactions

FEBS Letters, EarlyView.
Plasma membranes contain dynamic nanoscale domains that organize lipids and receptors. Because viruses operate at similar scales, this architecture shapes early infection steps, including attachment, receptor engagement, and entry. Using influenza A virus and HIV‐1 as examples, we highlight how receptor nanoclusters, multivalent glycan interactions ...
Jan Schlegel, Christian Sieben
wiley   +1 more source

Early Clinical and Subclinical Visual Evoked Potential and Humphrey's Visual Field Defects in Cryptococcal Meningitis. [PDF]

, 2012
Cryptococcal induced visual loss is a devastating complication in survivors of cryptococcal meningitis (CM). Early detection is paramount in prevention and treatment.
Moodley Anand, Andrew Michowicz, Moodley, A, William Rae, Bhigjee Ahmed, Connolly Cathy, Angela Loyse, Thomas Harrison, Loyse, A, Natasha Devparsad, Rae William, Devparsad Natasha, Anand Moodley, Michowicz, A, Cathy Connolly, Harrison Thomas, Loyse Angela, Connolly, C, Bhigjee, A, Harrison, T, Ahmed Bhigjee, Rae, W, Devparsad, N, Michowicz Andrew   +23 more
core   +2 more sources

Biophysical approaches for studying viral entry

FEBS Letters, EarlyView.
Viruses infect all living organisms and have been responsible for major epidemics and pandemics. Their ongoing evolutionary battle with host defenses creates a constant need for improved tools to study viral behavior. Advancing methods to probe viral attachment, fusion, and genome release deepen our understanding of how infections begin and support the
Inbar Yosibash, Raya Sorkin
wiley   +1 more source

Loss and enhancement of layer-selective signals in geniculostriate and corticotectal pathways of adult human amblyopia

Cell Reports, 2021
Summary: How abnormal visual experiences early in life influence human subcortical pathways is poorly understood. Using high-resolution fMRI and pathway-selective visual stimuli, we investigate the influence of amblyopia on response properties and the ...
Wen Wen, Yue Wang, Jiawei Zhou, Sheng He, Xinghuai Sun, Hong Liu, Chen Zhao, Peng Zhang   +7 more
doaj   +1 more source

Structural insights and therapeutic targets in Acinetobacter baumannii capsule biosynthesis

FEBS Letters, EarlyView.
Hypervirulent KL49 A. baumannii's capsular polysaccharide contains the nonulosonic acid 8‐epi‐Leg5,7Ac2, synthesized by epimerization via ElaA, ElaB, and ElaC. Crystal structures of ElaA, ElaB, and ElaC reveal their role in CMP‐Leg5,7Ac2 synthesis and regioselective C8 epimerization.
Woo Cheol Lee, Junho Jeong, Chae Yeong Lee, Hyunjoon Cho, Man Hwan Oh, Je Chul Lee, Jee‐Young Lee, Yangmee Kim   +7 more
wiley   +1 more source