Results 81 to 90 of about 333,652 (293)

Loss of amplitude of accommodation in pre-presbyopic HIV and AIDS patients under treatment with antiretrovirals

African Vision and Eye Health, 2017
Background: The prevalence of HIV and AIDS is causing an enormous public health burden. Its manifestations spare no organ. Ocular complications are mainly attributed to various opportunistic infections which are directly or indirectly caused by immune ...
Solani D. Mathebula, Prisilla S. Makunyane   +1 more
doaj   +1 more source

From energy provision to protein synthesis: Tunnelling nanotubes as mediators of intercellular metabolic cooperation in cancer

FEBS Open Bio, EarlyView.
The cytoskeleton‐mediated transport of mitochondria via tunnelling nanotubes restores respiration, increases ATP production, rescues cells from apoptosis, activates the AKT/mTOR signalling pathway, promotes cell migration and invasiveness, contributes to cancer progression and treatment resistance.
Stanislava Martínková, Jan Trnka
wiley   +1 more source

New type of perceptual suppression during dynamic ocular accommodation

, 2008
SummaryWhen viewing natural scenes saccadic eye movements are used to position retinal images of interest on the fovea, while vergence eye movements act to minimise retinal disparity and maintain a single binocular view of the target.
Mucke, Sven, Gray, Lyle S., Seidel, Dirk, Strang, Niall C.; id_orcid, Manahilov, Velitchko   +4 more
core   +1 more source

[Effect of noise on ocular accommodation].

Klinika oczna, 1991
The goal of investigations was the determination of connection between the level of noise and the extra-auditory reaction of the organism--a change of the near point. Changes of accommodation determined by means of a black-and-white check-board test were monitored in the course and after 1 hour exposition to noise of 90 dB-A, 93 dB-A, 96 dB-A or 99 dB ...
openaire   +2 more sources

A new flow chip in combination with multiphoton microscopy as a protocol for longitudinal 3D imaging of tissue calcification under shear stress

FEBS Open Bio, EarlyView.
Miniaturized flow chip platform enabling continuous perfusion and longitudinal multiphoton 3D imaging of vascular smooth muscle cell constructs under physiological flow. Brightfield imaging guides region selection, while CellTracker Green and mRuby‐labeled fetuin‐A visualize cells and mineral deposition, respectively. Magnesium supplementation markedly
Vytautas Kučikas, Aaron D. Morgan, Ignas Čiurlionis, Christian Böhm, Stefan Jockenhövel, Willi Jahnen‐Dechent, Marc A. M. J. van Zandvoort   +6 more
wiley   +1 more source

Arterial pulse modulates steady-state ocular accommodation

, 1990
Rapid and continuous fluctuations in ocular focus are known to occur when the eye views a stationary target. The advent of high-speed infra-red optometers has established that these microfluctuations of ocular accommodation have two dominant components ...
Owens, H., Winn, B., Pugh, J. R., Gilmartin, B.   +3 more
core   +1 more source

Epidemiological study of ocular trauma in an urban slum population in Delhi, India. [PDF]

, 2008
PURPOSE: To study the epidemiology and clinical profile of victims of ocular trauma in an urban slum population. MATERIALS AND METHODS: This cross-sectional study, conducted on 500 families each in three randomly selected urban slums in Delhi, collected ...
Vats, S, Gupta, SK, Vashist, P, Chandra, M, Gogoi, M, Murthy, GVS   +5 more
core   +1 more source

Association between crystalline lens thickness and intermittent exotropia in children: a cross-sectional observational clinical study

European Journal of Medical Research
Purpose To investigate the relationship between crystalline lens thickness (LT) and subtypes of intermittent exotropia (IXT) in children, focusing on ocular biometry and accommodation characteristics.
Jingxin Li, Xiangxiang Liu, Jie Hao, Fengchao Zhou, Huixin Li, Yiyang Zhao, Yumeng Wang, Lei Li, Jing Fu   +8 more
doaj   +1 more source

KDAC6 alters cell morphology and motility through positive and negative modulation of F‐actin distribution

FEBS Open Bio, EarlyView.
KDAC6 has been associated with cell motility and actin structures, but specific domain contributions are not established. The two catalytic domains have differential effects on motility and F‐actin regulation, affecting cortical F‐actin density, motility, stress fibers, and cell spreading.
Taylor V. Joseph, Andrea B. Pham, Kiara E. Bornes, Razan H. Hammad, Chelsea A. Rousseve‐Ross, Thomas M. Huckaba, Terry J. Watt, Tasha B. Toro   +7 more
wiley   +1 more source

Structural studies and functional engineering of NanX: an anhydro‐sialic acid transporter from Escherichia coli

FEBS Open Bio, EarlyView.
Biophysical characterisation shows that NanX, a membrane transport protein from the major facilitator superfamily (MFS), forms both monomers and dimers after purification. AlphaFold modelling and substrate docking provide information on residues likely involved in substrate recognition for NanX and another MFS member, NanT.
Michael C. Newton‐Vesty, Kelsi R. Hall, Zachary D. Tillett, Liam S. Turk, James S. Davies, Michael J. Currie, Hamish G. Brown, Sepideh Valimehr, Peter D. Mace, Andrew E. Whitten, Santosh Panjikar, Eric Hanssen, Rachel A. North, Renwick C.J. Dobson   +13 more
wiley   +1 more source