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https://www.readbyqxmd.com/read/29150214/multifocal-best-s-disease-the-importance-of-genetic-tests
#1
C Alba Linero, M Rodríguez Calvo de Mora, M España Contreras, C Hernando Ayala
OBJECTIVES AND METHODS: Our objective is to describe a multifocal vitelliform presentation of Best's disease. The lesions in this disease may vary in size and shape, some may be a disc diameter in size, and often have some irregularity in their contour. The case is described of a 21-year-old male patient referred to our ophthalmology department due to a progressive loss of vision. His poor visual acuity was confirmed, and a complete examination was performed, in which macular flecks were observed, with yellow pigment arranged in oval distribution near their periphery...
November 14, 2017: Archivos de la Sociedad Española de Oftalmología
https://www.readbyqxmd.com/read/29149913/subadditive-responses-to-extremely-short-blue-and-green-pulsed-light-on-visual-evoked-potentials-pupillary-constriction-and-electroretinograms
#2
Soomin Lee, Yuria Uchiyama, Yoshihiro Shimomura, Tetsuo Katsuura
BACKGROUND: The simultaneous exposure to blue and green light was reported to result in less melatonin suppression than monochromatic exposure to blue or green light. Here, we conducted an experiment using extremely short blue- and green-pulsed light to examine their visual and nonvisual effects on visual evoked potentials (VEPs), pupillary constriction, electroretinograms (ERGs), and subjective evaluations. METHODS: Twelve adult male subjects were exposed to three light conditions: blue-pulsed light (2...
November 17, 2017: Journal of Physiological Anthropology
https://www.readbyqxmd.com/read/29149540/controllable-synthesis-of-organic-microcrystals-with-tunable-emission-color-and-morphology-based-on-molecular-packing-mode
#3
Zhi-Zhou Li, Liang-Sheng Liao, Xue-Dong Wang
Organic microcrystals are of essential importance for high fluorescence efficiency, ordered molecular packing mode, minimized defects, and smooth shapes, which are extensively applied in organic optoelectronics. The molecular packing mode significantly influences the optical/electrical properties of organic microcrystals, which makes the controllable preparation of organic microcrystals with desired molecular packing mode extremely important. In the study, yellow-emissive α phase organic microcrystals with rectangular morphology and green-emissive β phase perylene microcrystals with rhombic morphology are separately prepared by simply controlling the solution concentration...
November 17, 2017: Small
https://www.readbyqxmd.com/read/29149423/structural-and-visible-near%C3%A2-infrared-optical-properties-of-cr-doped-tio2-for-colored-cool-pigments
#4
Le Yuan, Xiaolong Weng, Ming Zhou, Qingyong Zhang, Longjiang Deng
Chromium-doped TiO2 pigments were synthesized via a solid-state reaction method and studied with X-ray diffraction, SEM, XPS, and UV-VIS-NIR reflectance spectroscopy. The incorporation of Cr(3+) accelerates the transition from the anatase phase to the rutile phase and compresses the crystal lattice. Moreover, the particle morphology, energy gap, and reflectance spectrum of Cr-doped TiO2 pigments is affected by the crystal structure and doping concentration. For the rutile samples, some of the Cr(3+) ions are oxidized to Cr(4+) after sintering at a high temperature, which leads to a strong near-infrared absorption band due to the (3)A2 → (3) T1 electric dipole-allowed transitions of Cr(4+)...
November 17, 2017: Nanoscale Research Letters
https://www.readbyqxmd.com/read/29149369/the-osps1-f-gene-regulates-growth-and-development-in-rice-by-modulating-photosynthetic-electron-transport-rate
#5
Rengasamy Ramamoorthy, Bhushan Vishal, Srinivasan Ramachandran, Prakash P Kumar
Ds insertion in rice OsPS1-F gene results in semi-dwarf plants with reduced tiller number and grain yield, while genetic complementation with OsPS1-F rescued the mutant phenotype. Photosynthetic electron transport is regulated in the chloroplast thylakoid membrane by multi-protein complexes. Studies about photosynthetic machinery and its subunits in crop plants are necessary, because they could be crucial for yield enhancement in the long term. Here, we report the characterization of OsPS1-F (encoding Oryza sativa PHOTOSYSTEM 1-F subunit) using a single copy Ds insertion rice mutant line...
November 17, 2017: Plant Cell Reports
https://www.readbyqxmd.com/read/29149368/dietary-guidance-for-lutein-consideration-for-intake-recommendations-is-scientifically-supported
#6
Katherine M Ranard, Sookyoung Jeon, Emily S Mohn, James C Griffiths, Elizabeth J Johnson, John W Erdman
Lutein, a yellow xanthophyll carotenoid found in egg yolks and many colorful fruits and vegetables, has gained public health interest for its putative role in visual performance and reducing the risk of age-related macular degeneration. The National Academies of Sciences, Engineering and Medicine's recommended Dietary Reference Intakes (DRIs) focus on preventing deficiency and toxicity, but there is a budding interest in establishing DRI-like guidelines for non-essential bioactives, like lutein, that promote optimal health and/or prevent chronic diseases...
November 17, 2017: European Journal of Nutrition
https://www.readbyqxmd.com/read/29149221/dietary-protein-sources-differentially-affect-microbiota-mtor-activity-and-transcription-of-mtor-signaling-pathways-in-the-small-intestine
#7
Soumya K Kar, Alfons J M Jansman, Nirupama Benis, Javier Ramiro-Garcia, Dirkjan Schokker, Leo Kruijt, Ellen H Stolte, Johanna J Taverne-Thiele, Mari A Smits, Jerry M Wells
Dietary protein sources can have profound effects on host-microbe interactions in the gut that are critically important for immune resilience. However more knowledge is needed to assess the impact of different protein sources on gut and animal health. Thirty-six wildtype male C57BL/6J mice of 35 d age (n = 6/group; mean ± SEM body weight 21.9 ± 0.25 g) were randomly assigned to groups fed for four weeks with semi synthetic diets prepared with one of the following protein sources containing (300 g/kg as fed basis): soybean meal (SBM), casein, partially delactosed whey powder, spray dried plasma protein, wheat gluten meal and yellow meal worm...
2017: PloS One
https://www.readbyqxmd.com/read/29148706/porous-carbon-with-willow-leaf-shaped-pores-for-high-performance-supercapacitors
#8
Yanhong Shi, Lin-Lin Zhang, Tyler B Schon, Huan-Huan Li, Chao-Ying Fan, Xiao-Ying Li, Hai-Feng Wang, Xing-Long Wu, Haiming Xie, Haizhu Sun, Dwight S Seferos, Jingping Zhang
A novel kind of biomass-derived high oxygen containing carbon materials doped with nitrogen that have willow leaf shaped pores was synthesized. The obtained carbon materials have an exotic hierarchical pore structure composed of bowl shaped macropores, willow leaf shaped pores, and an abundance of micropores. This unique hierarchical porous structure provides an effective combination of high current densities with high capacitance due to a pseudocapacitive component that is afforded by the introduction of nitrogen and oxygen dopants...
November 17, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29148378/outbreak-of-yellow-fever-among-nonhuman-primates-espirito-santo-brazil-2017
#9
Natália Coelho Couto de Azevedo Fernandes, Mariana Sequetin Cunha, Juliana Mariotti Guerra, Rodrigo Albergaria Réssio, Cinthya Dos Santos Cirqueira, Silvia D'Andretta Iglezias, Júlia de Carvalho, Emerson L L Araujo, José Luiz Catão-Dias, Josué Díaz-Delgado
In January 2017, a yellow fever outbreak occurred in Espirito Santo, Brazil, where human immunization coverage is low. Histologic, immunohistologic, and PCR examinations were performed for 22 deceased nonhuman New World primates; typical yellow fever features were found in 21. Diagnosis in nonhuman primates prompted early public health response.
December 2017: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/29148362/pseudomonas-floridensis-sp-nov-a-bacterial-pathogen-isolated-from-tomato
#10
Sujan Timilsina, Gerald V Minsavage, James Preston, Eric A Newberry, Matthews L Paret, Erica M Goss, Jeffrey B Jones, Gary E Vallad
An unusual fluorescent pseudomonad was isolated from tomato exhibiting leaf spot symptoms similar to bacterial speck. Strains were fluorescent, oxidase- and arginine-dihydrolase-negative, elicited a hypersensitive reaction on tobacco and produced a soft rot on potato slices. However, the strains produced an unusual yellow, mucoid growth on media containing 5 % sucrose that is not typical of levan. Based on multilocus sequence analysis using 16S rRNA, gap1, gltA, gyrB and rpoD, these strains formed a distinct phylogenetic group in the genus Pseudomonas and were most closely related to Pseudomonas viridiflava within the Pseudomonassyringae complex...
November 17, 2017: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/29148097/ce3-sensitized-tm3-mn2-doped-nayf4-colloidal-nanocrystals-intense-cool-white-light-from-phosphor-coated-uv-led
#11
Venkataramanan Mahalingam, Venkata N K B Adusumalli, Heramba V S R M Koppisetti
Intense white light emission is observed from colloidal single component NaYF4:Ce3+/Tm3+/Mn2+ nanocrystals. This combination is interesting as it uses Mn2+ ions instead of green and red emitting Ln3+ ions which are expensive and less abundant. The single band blue emission of Tm3+ ions was combined with the broadband greenish yellow emission of Mn2+ ions to produce strong white light emission using Ce3+ ions as excitation source. Interestingly, there is hardly any re-absorption of blue emission by Mn2+ ions and the spectrum matches the commercial Ce3+-doped YAG phosphor coated over blue LED...
November 17, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/29148085/built-to-bite-differences-in-cranial-morphology-and-bite-performance-between-narrow-and-broad-headed-european-glass-eels
#12
Jens De Meyer, Sam Van Wassenbergh, Mathias Bouilliart, Jelle Dhaene, Dominique Adriaens
The presence of two phenotypes in a single species is a widespread phenomenon, also observed in European eel (Anguilla anguilla). This dimorphism has been related to dietary differences in the subadult elver and yellow eel stages, with broad-heads generally feeding on harder and/or larger-bodied prey items than narrow-heads. Nevertheless, both broad- and narrow-headed phenotypes can already be found among glass eels, the stage preceding the elver eel stage. As these glass eels are considered nonfeeding, we investigate here to what degree the observed variation in head width is reflected in variation in the musculoskeletal feeding system, as well as whether this reflects the same variation observed in the older, dimorphic yellow eels...
November 17, 2017: Journal of Morphology
https://www.readbyqxmd.com/read/29147825/ice-squeezing-induced-multicolor-fluorescence-emissions-from-polyacrylamide-cryogels
#13
Chun Yang, Yan Zhang, Wei-Qin Cao, Ya-Nan Yan, Jian Wang, Xiao-Feng Ji, Tao-Lin Zhong, Yu Wang
Being short of conventional chromophores, polyacrylamide is generally not regarded as a fluorescent material. Exactly the polymerization of dilute solutions of acrylamide and N,N'-methylenebisacrylamide led to thick liquids at 60 °C, showing no fluorescence. Things changed when the phase transition of water was involved. The squeezing effect of ice crystals not only created polymeric solids (cryogels) at - 20 °C, but also endowed them unexpected fluorescence emissions. The macroporous cryogels are mainly blue fluorescent polymers...
November 16, 2017: Journal of Fluorescence
https://www.readbyqxmd.com/read/29147784/molecular-characterization-of-faba-bean-necrotic-yellows-viruses-in-tunisia
#14
Simona Kraberger, Safaa G Kumari, Asma Najar, Daisy Stainton, Darren P Martin, Arvind Varsani
Faba bean necrotic yellows virus (FBNYV) (genus Nanovirus; family Nanoviridae) has a genome comprising eight individually encapsidated circular single-stranded DNA components. It has frequently been found infecting faba bean (Vicia faba L.) and chickpea (Cicer arietinum L.) in association with satellite molecules (alphasatellites). Genome sequences of FBNYV from Azerbaijan, Egypt, Iran, Morocco, Spain and Syria have been determined previously and we now report the first five genome sequences of FBNYV and associated alphasatellites from faba bean sampled in Tunisia...
November 17, 2017: Archives of Virology
https://www.readbyqxmd.com/read/29147638/a-sensitive-and-rapid-method-for-detecting-formaldehyde-in-brain-tissues
#15
Xiangpei Yue, Yaoyue Zhang, Wen Xing, Yutong Chen, Chenyang Mu, Zhan Miao, Peichun Ge, Tingting Li, Rongqiao He, Zhiqian Tong
The existing methods for detecting formaldehyde (FA) in brain samples are expensive and require sophisticated experimental procedures. Here, we established a highly sensitive and selective spectrophotometric method, which is based on a reaction in which FA reacts with colorless reagent 4-amino-3-penten-2-one (Fluoral-P) to produce a yellow compound, 3,5-diacetyl-1,4-dihydrolutidine (DDL), which can be detected by a spectrophotometer at 420 nm at room temperature. The sensitive response time point was found to be at the first hour, and the optimal pH of derivative reaction was pH 6...
2017: Analytical Cellular Pathology (Amsterdam)
https://www.readbyqxmd.com/read/29147096/meat-quality-and-storage-characteristics-of-pork-loin-marinated-in-grape-pomace
#16
Hyun-Joo Lee, Jae-Joon Lee, Myung-Ok Jung, Jung-Seok Choi, Ji-Taek Jung, Yang-Il Choi, Jin-Kyu Lee
This study investigated the meat quality and storage characteristics of pork loin marinated in grape pomace powder during different storage periods. The experimental design included six treatments : pork loin containing only 100% water (Control, C); pork loin containing a combination of 20% grape pomace and 80% water (T1); pork loin containing a combination of 40% grape pomace and 60% water (T2); pork loin containing a combination of 0.5% grape pomace powder and 95.5% water (T3); pork loin containing a combination of 1...
2017: Korean Journal for Food Science of Animal Resources
https://www.readbyqxmd.com/read/29147092/meat-quality-traits-of-pigs-finished-on-food-waste
#17
Jihwan Choe, Knowledge M Moyo, Kibum Park, Jeongho Jeong, Haeun Kim, Yungsun Ryu, Jonggun Kim, Jun-Mo Kim, Sanghoon Lee, Gwang-Woong Go
Despite the benefits associated with the use of food waste (FW), there are mixed consumer perceptions regarding pork quality harvested from pigs fed FW. Twenty crossbred pigs were selected for the present study. Ten pigs were fed a conventional diet (control group), and the other 10 pigs were given a conventional diet and FW (FW group) during different growth stages. Meat quality in the FW group showed deteriorative qualities with higher lightness and yellowness synonymous to pale soft exudative meat. Drip loss in the experimental group was significantly higher than that in the control group (p<0...
2017: Korean Journal for Food Science of Animal Resources
https://www.readbyqxmd.com/read/29147084/optimization-of-replacing-pork-meat-with-yellow-worm-tenebrio-molitor-l-for-frankfurters
#18
Yun-Sang Choi, Tae-Kyung Kim, Hee-Don Choi, Jong-Dae Park, Jung-Min Sung, Ki-Hong Jeon, Hyun-Dong Paik, Young-Boong Kim
The effects of replacing pork meat with yellow mealworms on the physicochemical properties and sensory characteristics of frankfurters were investigated in this study. The control (50% pork ham), T1 (45% pork ham + 5% yellow mealworm), T2 (40% pork ham + 10% yellow mealworm), T3 (35% pork ham + 15% yellow mealworm), T4 (30% pork ham + 20% yellow mealworm), T5 (25% pork ham + 25% yellow mealworm), and T6 (20% pork ham + 30% yellow mealworm) were prepared, replacing lean pork meat with yellow mealworm. The moisture content, lightness, sarcoplasmic protein solubility, hardness, gumminess, chewiness, and apparent viscosity of frankfurters with yellow mealworm were lower than those of the control (p<0...
2017: Korean Journal for Food Science of Animal Resources
https://www.readbyqxmd.com/read/29146906/qtl-mapping-and-molecular-characterization-of-the-classical-d-locus-controlling-seed-and-flower-color-in-linum-usitatissimum-flax
#19
Gurudatt Pavagada Sudarshan, Manoj Kulkarni, Leonid Akhov, Paula Ashe, Hamid Shaterian, Sylvie Cloutier, Gordon Rowland, Yangdou Wei, Gopalan Selvaraj
The flowers of flax (linseed) are blue-hued, ephemeral and self-pollinating, and the seeds are typically brown. A century-old interest in natural yellow seed variants and a historical model point to recessive alleles in B1, D and G loci being responsible, but the functional aspects had remained unknown. Here, we characterized the "D" locus by quantitative trait loci (QTL) mapping and identified a FLAVONOID 3'5' HYDROXYLASE (F3'5'H) gene therein. It does not belong to the F3'5'H clade, but resembles biochemically characterized F3'Hs (flavonoid 3' hydroxylase) but without F3'H activity...
November 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29146812/evolution-of-flower-color-pattern-through-selection-on-regulatory-small-rnas
#20
Desmond Bradley, Ping Xu, Irina-Ioana Mohorianu, Annabel Whibley, David Field, Hugo Tavares, Matthew Couchman, Lucy Copsey, Rosemary Carpenter, Miaomiao Li, Qun Li, Yongbiao Xue, Tamas Dalmay, Enrico Coen
Small RNAs (sRNAs) regulate genes in plants and animals. Here, we show that population-wide differences in color patterns in snapdragon flowers are caused by an inverted duplication that generates sRNAs. The complexity and size of the transcripts indicate that the duplication represents an intermediate on the pathway to microRNA evolution. The sRNAs repress a pigment biosynthesis gene, creating a yellow highlight at the site of pollinator entry. The inverted duplication exhibits steep clines in allele frequency in a natural hybrid zone, showing that the allele is under selection...
November 17, 2017: Science
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