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https://www.readbyqxmd.com/read/28917032/cfs-matlab-toolbox-an-experiment-builder-for-continuous-flash-suppression-cfs-task
#1
Mikko Nuutinen, Terhi Mustonen, Jukka Häkkinen
CFS toolbox is an open-source collection of MATLAB functions that utilizes PsychToolbox-3 (PTB-3). It is designed to allow a researcher to create and run continuous flash suppression experiments using a variety of experimental parameters (i.e., stimulus types and locations, noise characteristics, and experiment window settings). In a CFS experiment, one of the eyes at a time is presented with a dynamically changing noise pattern, while the other eye is concurrently presented with a static target stimulus, such as a Gabor patch...
September 15, 2017: Behavior Research Methods
https://www.readbyqxmd.com/read/28915326/adaptive-immunity-and-metabolic-health-harmony-becomes-dissonant-in-obesity-and-aging
#2
Leena P Bharath, Blanche C Ip, Barbara S Nikolajczyk
Adipose tissue (AT) is the primary energy reservoir organ, and thereby plays a critical role in energy homeostasis and regulation of metabolism. AT expands in response to chronic overnutrition or aging and becomes a major source of inflammation that has marked influence on systemic metabolism. The chronic, sterile inflammation that occurs in the AT during the development of obesity or in aging contributes to onset of devastating diseases such as insulin resistance, diabetes, and cardiovascular pathologies. Numerous studies have shown that inflammation in the visceral AT of humans and animals is a critical trigger for the development of metabolic syndrome...
September 12, 2017: Comprehensive Physiology
https://www.readbyqxmd.com/read/28912158/visual-responses-in-fef-unlike-v1-primarily-reflect-when-the-visual-context-renders-a-receptive-field-salient
#3
Wilsaan M Joiner, James Cavanaugh, Robert H Wurtz, Bruce G Cumming
When light falls within a neuronal visual receptive field (RF) the resulting activity is referred to as the visual response. Recent work suggests this activity is in response to both the visual stimulation and the abrupt appearance, or salience, of the presentation. Here we present a novel method for distinguishing the two, based on the timing of random and non-random presentations. We examined these contributions in frontal eye field (FEF, N = 51) and as a comparison, an early stage in the primary visual cortex (V1, N = 15) of male monkeys (Macaca mulatta)...
September 14, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28910416/lateralized-behaviour-as-indicator-of-affective-state-in-dairy-cows
#4
Sarah Kappel, Michael T Mendl, David C Barrett, Joanna C Murrell, Helen R Whay
In humans, there is evidence that sensory processing of novel or threatening stimuli is right hemisphere dominated, especially in people experiencing negative affective states. There is also evidence for similar lateralization in a number of non-human animal species. Here we investigate whether this is also the case in domestic cattle that may experience long-term negative states due to commonly occurring conditions such as lameness. Health and welfare implications associated with pain in lame cows are a major concern in dairy farming...
2017: PloS One
https://www.readbyqxmd.com/read/28903626/light-dominates-peripheral-circadian-oscillations-in-drosophila-melanogaster-during-sensory-conflict
#5
Ross E F Harper, Maite Ogueta, Peter Dayan, Ralf Stanewsky, Joerg T Albert
In Drosophila, as in other animals, the circadian clock is a singular entity in name and concept only. In reality, clock functions emerge from multiple processes and anatomical substrates. One distinction has conventionally been made between a central clock (in the brain) and peripheral clocks (e.g., in the gut and the eyes). Both types of clock generate robust circadian oscillations, which do not require external input. Furthermore, the phases of these oscillations remain exquisitely sensitive to specific environmental cues, such as the daily changes of light and temperature...
September 1, 2017: Journal of Biological Rhythms
https://www.readbyqxmd.com/read/28901437/implementing-targeted-region-capture-sequencing-for-the-clinical-detection-of-alagille-syndrome-an-efficient-and-cost%C3%A2-effective-method
#6
Tianhong Huang, Guilin Yang, Xiao Dang, Feijian Ao, Jiankang Li, Yizhou He, Qiyuan Tang, Qing He
Alagille syndrome (AGS) is a highly variable, autosomal dominant disease that affects multiple structures including the liver, heart, eyes, bones and face. Targeted region capture sequencing focuses on a panel of known pathogenic genes and provides a rapid, cost‑effective and accurate method for molecular diagnosis. In a Chinese family, this method was used on the proband and Sanger sequencing was applied to validate the candidate mutation. A de novo heterozygous mutation (c.3254_3255insT p.Leu1085PhefsX24) of the jagged 1 gene was identified as the potential disease‑causing gene mutation...
September 7, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28900607/de-novo-intraocular-amyloid-deposition-after-hepatic-transplantation-in-familial-amyloidotic-polyneuropathy
#7
Ivo Filipe Gama, Leonor Duarte Almeida
The familiar amyloid polyneuropathy (FAP) is a rare autosomal-dominant systemic amyloidosis. Amyloid deposition occurs more frequently and extensively in the vitq. The increase in intraocular pressure (IOP) is a result of deposition of transthyretin (TTR) in trabecular meshwork. Rarely, the amyloid deposition in anterior segment can be more exuberant than in posterior segment. A 42 years old man, with FAP (Val30Met mutation), liver transplantation in 1997. He was asymptomatic, without any significant ocular abnormality until 2011...
August 24, 2017: World Journal of Transplantation
https://www.readbyqxmd.com/read/28900204/monovision-by-implantation-of-posterior-chamber-phakic-intraocular-lens-with-a-central-hole-hole-icl-for-early-presbyopia
#8
Kazutaka Kamiya, Masahide Takahashi, Natsumi Takahashi, Nobuyuki Shoji, Kimiya Shimizu
This study was aimed to evaluate visual performance at near to far distances in early presbyopic patients undergoing monovision by implantation of an ICL with a central hole (hole ICL). This pilot study comprised thirty-four eyes of 17 early presbyopic patients (age, 40 to 53 years) who underwent hole ICL implantation, and whose targeted refraction was set at emmetropia for the dominant eye, and at slight myopia (-0.5 to -1.0 diopters (D)) for the non-dominant eye. Corrected distance visual acuity was significantly improved, from -0...
September 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28893104/ripasudil-hydrochloride-hydrate-targeting-rho-kinase-in-the-treatment-of-glaucoma
#9
Toshihiro Inoue, Hidenobu Tanihara
Among the intraocular pressure (IOP)-lowering drugs used in a clinical setting, Rho kinase (ROCK) inhibitors lower IOP by a unique mechanism, namely the depolymerization of intracellular actin in the conventional outflow tissues: the trabecular meshwork (TM) and Schlemm's canal (SC). Furthermore, ROCK inhibitors suppress the production of extracellular matrix by TM cells, which represents a potential alternative method of lowering IOP. Considering that conventional outflow is a dominant pathway in humans, IOP-lowering ROCK inhibitors, delivered in conjunction with other drugs, may be able to treat the glaucomatous eye...
September 12, 2017: Expert Opinion on Pharmacotherapy
https://www.readbyqxmd.com/read/28892464/network-wide-reorganization-of-procedural-memory-during-nrem-sleep-revealed-by-fmri
#10
Shahabeddin Vahdat, Stuart Fogel, Habib Benali, Julien Doyon
Sleep is necessary for the optimal consolidation of newly acquired procedural memories. However, the mechanisms by which motor memory traces develop during sleep remain controversial in humans, as this process has been mainly investigated indirectly by comparing pre- and post-sleep conditions. Here, we used functional magnetic resonance imaging and electroencephalography during sleep following motor sequence learning to investigate how newly-formed memory traces evolve dynamically over time. We provide direct evidence for transient reactivation followed by downscaling of functional connectivity in a cortically-dominant pattern formed during learning, as well as gradual reorganization of this representation toward a subcortically-dominant consolidated trace during non-rapid eye movement (NREM) sleep...
September 11, 2017: ELife
https://www.readbyqxmd.com/read/28891338/synthesis-and-biological-evaluation-of-benzenesulphonamide-bearing-1-4-5-trisubstituted-1-2-3-triazoles-possessing-human-carbonic-anhydrase-i-ii-iv-and-ix-inhibitory-activity
#11
Rajiv Kumar, Vikas Sharma, Silvia Bua, Claudiu T Supuran, Pawan K Sharma
A library of benzenesulphonamides incorporating 1,2,3-triazole rings functionalised with ester, carboxylic acid, carboxamide, carboxyhydrazide, and hydroxymethyl moieties were synthesised. The carbonic anhydrase (CAs, EC 4.2.1.1) inhibitory activity of the new compounds was assessed against four human (h) isoforms, hCA I, hCA II, hCA IV, and hCA IX. Among them, hCA II and IV are anti-glaucoma drug targets, being involved in aqueous humour secretion within the eye. hCA I was inhibited with Ki's ranging between 8...
December 2017: Journal of Enzyme Inhibition and Medicinal Chemistry
https://www.readbyqxmd.com/read/28890675/dominant-hand-non-dominant-hand-or-both-the-effect-of-pre-training-in-hand-eye-coordination-upon-the-learning-curve-of-laparoscopic-intra-corporeal-knot-tying
#12
Carlos Roger Molinas, Maria Mercedes Binda, Rudi Campo
BACKGROUND: Training of basic laparoscopic psychomotor skills improves both acquisition and retention of more advanced laparoscopic tasks, such as laparoscopic intra-corporeal knot tying (LICK). This randomized controlled trial (RCT) was performed to evaluate the effect of different pre-training programs in hand-eye coordination (HEC) upon the learning curve of LICK. RESULTS: The study was performed in a private center in Asunción, Paraguay, by 60 residents/specialists in gynaecology with no experience in laparoscopic surgery...
2017: Gynecological Surgery
https://www.readbyqxmd.com/read/28887836/a-novel-method-for-quantification-of-beam-s-eye-view-tumor-tracking-performance
#13
Yue-Houng Hu, Marios Myronakis, Joerg Rottmann, Adam Wang, Daniel Morf, Daniel Shedlock, Paul Baturin, Josh Star-Lack, Ross Berbeco
PURPOSE: In-treatment imaging using an electronic portal imaging device (EPID) can be used to confirm patient and tumor positioning. Real-time tumor tracking performance using current digital megavolt (MV) imagers is hindered by poor image quality. Novel EPID designs may help to improve quantum noise response, while also preserving the high spatial resolution of the current clinical detector. Recently investigated EPID design improvements include but are not limited to multi-layer imager (MLI) architecture, thick crystalline and amorphous scintillators, and phosphor pixilation and focusing...
September 9, 2017: Medical Physics
https://www.readbyqxmd.com/read/28878318/a-complete-investigation-of-monocular-and-binocular-functions-in-clinically-treated-amblyopia
#14
Wuxiao Zhao, Wu-Li Jia, Ge Chen, Yan Luo, Borong Lin, Qing He, Zhong-Lin Lu, Min Li, Chang-Bing Huang
The gold standard of a successful amblyopia treatment is full recovery of visual acuity (VA) in the amblyopic eye, but there has been no systematic study on both monocular and binocular visual functions. In this research, we aimed to quantify visual qualities with a variety of perceptual tasks in subjects with treated amblyopia. We found near stereoacuity and pAE dominance in binocular rivalry in "treated" amblyopia were largely comparable to those of normal subjects. CSF of the pAE remained deficient in high spatial frequencies...
September 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28878022/drusen-in-patient-derived-hipsc-rpe-models-of-macular-dystrophies
#15
Chad A Galloway, Sonal Dalvi, Sandy S C Hung, Leslie A MacDonald, Lisa R Latchney, Raymond C B Wong, Robyn H Guymer, David A Mackey, David S Williams, Mina M Chung, David M Gamm, Alice Pébay, Alex W Hewitt, Ruchira Singh
Age-related macular degeneration (AMD) and related macular dystrophies (MDs) are a major cause of vision loss. However, the mechanisms underlying their progression remain ill-defined. This is partly due to the lack of disease models recapitulating the human pathology. Furthermore, in vivo studies have yielded limited understanding of the role of specific cell types in the eye vs. systemic influences (e.g., serum) on the disease pathology. Here, we use human induced pluripotent stem cell-retinal pigment epithelium (hiPSC-RPE) derived from patients with three dominant MDs, Sorsby's fundus dystrophy (SFD), Doyne honeycomb retinal dystrophy/malattia Leventinese (DHRD), and autosomal dominant radial drusen (ADRD), and demonstrate that dysfunction of RPE cells alone is sufficient for the initiation of sub-RPE lipoproteinaceous deposit (drusen) formation and extracellular matrix (ECM) alteration in these diseases...
September 6, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28871934/diffuse-palmoplantar-keratoderma-onychodystrophy-universal-hypotrichosis-and-cysts
#16
Tasleem Arif, Syed Suhail Amin, Mohammad Adil, Mohd Mohtashim
Dear Editor, Clouston syndrome, also called hidrotic ectodermal dysplasia (HED), is an autosomal dominant ectodermal dysplasia characterized by a clinical triad of onychodystrophy, generalized hypotrichosis, and palmoplantar keratoderma (1). Herein we report the case of a 24-year-old male with the distinctive clinical triad associated with multiple epidermoid cysts, which probably reflects the phenotype of Clouston syndrome. A 24-year-old male presented to our Department with diffuse thickening of the skin of his palms and soles since infancy...
July 2017: Acta Dermatovenerologica Croatica: ADC
https://www.readbyqxmd.com/read/28864902/fatty-acid-composition-of-odonate-s-eyes
#17
N N Sushchik, O N Popova, O N Makhutova, M I Gladyshev
We have studied the fatty acid composition of eyes of amphibiotic insects, namely, the odonate Sympetrum flaveolum. The main polyunsaturated fatty acid of odonate's eyes has been found to be 20:5n-3 (eicosapentaenoic fatty acid, EPA) rather than 18:2n-6 and 18:3n-3, which usually dominate in eyes of terrestrial insects, or 22:6n-3, which dominates in eyes of vertebrates. The prevalence of EPA in odonate's eyes probably provides a more effective transmission of light signal in this animal compared to terrestrial insects...
July 2017: Doklady. Biochemistry and Biophysics
https://www.readbyqxmd.com/read/28860915/congenital-distichiasis-histopathological-report-of-3-cases
#18
Hind Manaa Alkatan, Alicia Galindo-Ferreiro, Azza Maktabi, Alberto Galvez-Ruiz, Silvana Schellini
Distichiasis is a condition clinically presenting as partial or complete accessory row of lashes that emerges from the meibomian glands orifices. It can be an acquired or congenital with an autosomal dominant inheritance. The histopathological features are not well described in the ophthalmic literature, however they include abnormal pilosebaceous units within the posterior lamella of the eyelid and perifollicular chronic inflammatory cell infiltration. In this report, we describe the histopathological findings of three congenital distichiasis cases treated at King Khaled Eye Specialist Hospital (KKESH), Riyadh, Saudi Arabia with discussion on the pathogenesis of such a condition and the differentiating features from ectopic cilia...
July 2017: Saudi Journal of Ophthalmology: Official Journal of the Saudi Ophthalmological Society
https://www.readbyqxmd.com/read/28859092/seeing-virtual-while-acting-real-visual-display-and-strategy-effects-on-the-time-and-precision-of-eye-hand-coordination
#19
Anil U Batmaz, Michel de Mathelin, Birgitta Dresp-Langley
Effects of different visual displays on the time and precision of bare-handed or tool-mediated eye-hand coordination were investigated in a pick-and-place-task with complete novices. All of them scored well above average in spatial perspective taking ability and performed the task with their dominant hand. Two groups of novices, four men and four women in each group, had to place a small object in a precise order on the centre of five targets on a Real-world Action Field (RAF), as swiftly as possible and as precisely as possible, using a tool or not (control)...
2017: PloS One
https://www.readbyqxmd.com/read/28857483/intravitreal-gas-for-symptomatic-vitreomacular-adhesion-a-synthesis-of-the-literature
#20
REVIEW
James E Neffendorf, Andrew R H Simpson, David H W Steel, Riti Desai, Dominic A McHugh, Edward Pringle, Timothy L Jackson
Symptomatic vitreomacular adhesion (sVMA) is defined as visual loss secondary to foveal damage from vitreomacular traction (VMT) and includes isolated VMT, impending macular hole (MH), and full-thickness MH with persisting vitreous attachment. Management options include pars plana vitrectomy (PPV), intravitreal ocriplasmin, intravitreal gas injection or observation. This synthesis of the literature aimed to assess the safety and efficacy of intravitreal gas for sVMA. Articles describing patients with VMT or MH treated with intravitreal expansile gas were selected by systematic literature review using MEDLINE, EMBASE, and the Cochrane Database of Controlled Trials (CENTRAL) up to September 2016...
August 31, 2017: Acta Ophthalmologica
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