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https://www.readbyqxmd.com/read/28109777/physiological-tremor-8-12hz-component-in-isometric-force-control
#1
Thomas Novak, Karl M Newell
The experiment investigated the influence of physiological tremor (8-12Hz band) on the variability of isometric force control as a function of force level and hand dominance. Subjects were instructed to match a constant force level target line on a computer screen and minimize error in a uni-manual isometric finger abduction task at 5%, 25%, 45%, 65%, and 85% of their maximal voluntary contraction (MVC). The experimental protocol was performed independently with the left and right hands in separate blocks of performance...
January 18, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28109079/silencing-of-ribosomal-protein-l34-rpl34-inhibits-the-proliferation-and-invasion-of-esophageal-cancer-cells
#2
Huijie Fan, Jing Li, Yongxu Jia, Jingjing Wu, Long Yuan, Mingjun Li, Jiangqi Wei, Benling Xu
Ribosomal protein L34 (RPL34) belongs to the L34E family of ribosomal proteins and contains a zinc finger motif. Aberrant expression of RPL34 has been reported in several human malignancies. However, the precise role and potential underlying mechanisms of RPL34 in human esophageal cancer remain largely unknown. Thus, the objective of this study was to investigate the role of RPL34 in esophageal cancer progression. Our results showed that the expression of RPL34 at both mRNA and protein levels was frequently up-regulated in esophageal cancer cell lines...
January 20, 2017: Oncology Research
https://www.readbyqxmd.com/read/28108976/phenotypic-and-biochemical-alterations-in-relation-to-mt2-gene-expression-in-plantago-ovata-forsk-under-zinc-stress
#3
Paulami Pramanick, Anindita Chakraborty, Sarmistha Sen Raychaudhuri
Plantago ovata Forsk is an annual herb with immense medicinal importance, the seed and husk of which is used in the treatment of chronic constipation, irritable bowel syndrome, diarrhea since ancient times. Zinc, an essential metal, is required by plants as they form important components of zinc finger proteins and also aid in synthesis of photosynthetic pigments such as chlorophyll. However, in excess amount Zn causes chlorosis of leaf and shoot tissues and generate reactive oxygen species. The present study is aimed at investigating the changes in expression levels of MT2 gene in Plantago ovata under zinc stress...
January 20, 2017: Biometals: An International Journal on the Role of Metal Ions in Biology, Biochemistry, and Medicine
https://www.readbyqxmd.com/read/28108965/transcriptomic-and-hormone-analyses-reveal-mechanisms-underlying-petal-elongation-in-chrysanthemum-morifolium-jinba
#4
Jingjing Wang, Haibin Wang, Lian Ding, Aiping Song, Feng Shen, Jiafu Jiang, Sumei Chen, Fadi Chen
Auxin regulates chrysanthemum petal elongation by promoting cell elongation. Transcriptomic analysis shows that auxin signal transduction may connect with other transcription factors by TCPs to regulate chrysanthemum petal elongation. As an ornamental species, Chrysanthemum morifolium has high ornamental and economic value. Petal size is the primary factor that influences the ornamental value of chrysanthemum, but the mechanism underlying the development of C. morifolium petals remains unclear. In our study, we tracked the growth of petals and found that the basal region of 'Jinba' petals showed a higher elongation rate, exhibiting rapid cell elongation during petal growth...
January 20, 2017: Plant Molecular Biology
https://www.readbyqxmd.com/read/28108792/numerical-magnitude-affects-online-execution-and-not-planning-of-visuomotor-control
#5
Gal Namdar, Tzvi Ganel
Recent literature has established a directional influence of irrelevant numerical magnitude on actions performed toward neutral objects. For example, fingers' aperture during grasping is larger when associated with large compared with small numerical digits. This interaction between symbolic magnitude and visuomotor control has been attributed to the planning stage of the action prior to motor execution. However, this assumption has not been directly tested. In two experiments, we tested whether the effects of numerical magnitude on grasping derive from action planning or from action execution...
January 20, 2017: Psychological Research
https://www.readbyqxmd.com/read/28108585/histone-h3k4-and-h3k36-methylation-independently-recruit-the-nua3-histone-acetyltransferase-in-saccharomyces-cerevisiae
#6
Benjamin J E Martin, Kristina L McBurney, Vicki E Maltby, Kristoffer N Jensen, Julie Brind'Amour, LeAnn Howe
Histone post-translational modifications (PTMs) alter chromatin structure by promoting the interaction of chromatin-modifying complexes with nucleosomes. The majority of chromatin-modifying complexes contain multiple domains that preferentially interact with modified histones, leading to speculation that these domains function in concert to target nucleosomes with distinct combinations of histone PTMs. In S. cerevisiae, the NuA3 histone acetyltransferase complex contains three domains, the PHD finger in Yng1, the PWWP domain in Pdp3, and the YEATS domain in Taf14, which in vitro bind to H3K4 methylation, H3K36 methylation, and acetylated and crotonylated H3K9 respectively...
January 20, 2017: Genetics
https://www.readbyqxmd.com/read/28108308/role-of-cyclooxygenase-in-the-vascular-response-to-locally-delivered-acetylcholine-in-caucasian-and-african-descent-individuals
#7
Matthew J Maley, James R House, Michael J Tipton, Clare M Eglin
INTRODUCTION: Individuals of African descent (AFD) are more susceptible to non-freezing cold injury (NFCI) compared with Caucasian individuals (CAU). Vasodilatation to acetylcholine (ACh) is lower in AFD compared with CAU in the non-glabrous foot and finger skin sites; the reason for this is unknown. Prostanoids are responsible, in part, for the vasodilator response to ACh, however it is not known whether the contribution differs between ethnicities. METHODS: 12 CAU and 12 AFD males received iontophoresis of ACh (1 w/v%) on non-glabrous foot and finger skin sites following placebo and then aspirin (600mg, single blinded)...
January 17, 2017: Microvascular Research
https://www.readbyqxmd.com/read/28108227/cerebral-blood-flow-autoregulation-is-impaired-in-schizophrenia-a-pilot-study
#8
Hsiao-Lun Ku, Jiunn-Kae Wang, Hsin-Chien Lee, Timothy Joseph Lane, I-Chao Liu, Yung-Chan Chen, Yao-Tung Lee, I-Cheng Lin, Chia-Pei Lin, Chaur-Jong Hu, Nai-Fang Chi
Patients with schizophrenia have a higher risk of cardiovascular diseases and higher mortality from them than does the general population; however, the underlying mechanism remains unclear. Impaired cerebral autoregulation is associated with cerebrovascular diseases and their mortality. Increased or decreased cerebral blood flow in different brain regions has been reported in patients with schizophrenia, which implies impaired cerebral autoregulation. This study investigated the cerebral autoregulation in 21 patients with schizophrenia and 23 age- and sex-matched healthy controls...
January 17, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28108186/editing-the-trypanosoma-cruzi-genome-with-zinc-finger-nucleases
#9
Gabriela Assis Burle-Caldas, Viviane Grazielle-Silva, Melissa Soares-Simões, Gabriela Schumann Burkard, Isabel Roditi, Wanderson Duarte DaRocha, Santuza M Teixeira
Gene function studies in Trypanosoma cruzi, the protozoan parasite that causes Chagas disease, have been hindered by the lack of efficient genetic manipulation protocols. In most organisms, insertion and deletion of DNA fragments in the genome are dependent on the generation of double-stranded DNA break (DSB) and repair. By inducing a site-specific DSB, zinc finger nucleases (ZFNs) have proven to be useful to enhance gene editing in many cell types. Using a pair of ZFNs targeted to the T. cruzi gp72 gene, we were able to generate gp72 knockout parasites with improved efficiency compared to the conventional gene knockout protocol...
January 17, 2017: Molecular and Biochemical Parasitology
https://www.readbyqxmd.com/read/28107777/the-dc1-domain-protein-vacuoleless-gametophytes-is-essential-for-female-and-male-gametophyte-development-in-arabidopsis
#10
Sebastián D'Ippólito, Leonardo Agustín Arias, Claudia Anahí Casalongué, Gabriela Carolina Pagnussat, Diego Fernando Fiol
In this work we identified VACUOLELESS GAMETOPHYTES (VLG) as a DC1 domain containing protein present in the endomembrane system essential for both female and male gametophyte development. VLG was originally annotated as a gene coding for an unknown function protein containing DC1 domains. DC1 domains are cysteine and histidine -rich zinc finger domains found exclusively in the plant Kingdom that have been named based on its similarity with the C1 domain present in protein kinase C (PKC). In Arabidopsis, both male and female gametophytes are characterized by the formation of a big vacuole early in development, which is absent in vlg mutant plants...
January 20, 2017: Plant Journal: for Cell and Molecular Biology
https://www.readbyqxmd.com/read/28107688/sequencing-and-de-novo-assembly-of-visceral-mass-transcriptome-of-the-critically-endangered-land-snail-satsuma-myomphala-annotation-and-ssr-discovery
#11
Se Won Kang, Bharat Bhusan Patnaik, Hee-Ju Hwang, So Young Park, Jong Min Chung, Dae Kwon Song, Hongray Howrelia Patnaik, Jae Bong Lee, Changmu Kim, Soonok Kim, Young-Su Park, Hong Seog Park, Seung-Hwan Park, Yeon Soo Han, Jun Sang Lee, Yong Seok Lee
Satsuma myomphala is critically endangered through loss of natural habitats, predation by natural enemies, and indiscriminate collection. It is a protected species in Korea but lacks genomic resources for an understanding of varied functional processes attributable to evolutionary success under natural habitats. For assessing the genetic information of S. myomphala, we performed for the first time, de novo transcriptome sequencing and functional annotation of expressed sequences using Illumina Next-Generation Sequencing (NGS) platform and bioinformatics analysis...
October 29, 2016: Comparative Biochemistry and Physiology. Part D, Genomics & Proteomics
https://www.readbyqxmd.com/read/28105533/semi-automated-quantification-of-finger-joint-space-narrowing-using-tomosynthesis-in-patients-with-rheumatoid-arthritis
#12
Shota Ichikawa, Tamotsu Kamishima, Kenneth Sutherland, Hideki Kasahara, Yuka Shimizu, Motoshi Fujimori, Nobutoshi Yasojima, Yohei Ono, Takahiko Kaneda, Takao Koike
The purpose of the study is to validate the semi-automated method using tomosynthesis images for the assessment of finger joint space narrowing (JSN) in patients with rheumatoid arthritis (RA), by using the semi-quantitative scoring method as the reference standard. Twenty patients (14 females and 6 males) with RA were included in this retrospective study. All patients underwent radiography and tomosynthesis of the bilateral hand and wrist. Two rheumatologists and a radiologist independently scored JSN with two modalities according to the Sharp/van der Heijde score...
January 19, 2017: Journal of Digital Imaging: the Official Journal of the Society for Computer Applications in Radiology
https://www.readbyqxmd.com/read/28104026/-function-and-mechanism-of-zinc-finger-protein-znf50-in-inhibiting-the-growth-of-esophageal-squamous-cell-carcinoma-cells
#13
J Wang, Y H Bi, J Yang, F Liu, Y K Li, H Y Cui, F Wang, J Liu, B Yang, L Zhang
Objective: To investigate the function and mechanism of zinc finger protein 750 (ZNF750) in esophageal squamous cell carcinoma (ESCC). Methods: Xenograft in nude mice was applied to detect the tumorigenesis of ZNF750-depleted ESCC cells. Western blot was performed to observe the expression of downstream target protein of ZNF750 in ESCC cell lines and xenograft tumor tissues in which ZNF750 was knocked down. 3-(4, 5-dimethyl-2-thiazolyl)-2, 5-diphenyl-2H tetrazolium bromide (MTT) assay was used to determine the proliferation of ZNF750 stably depleted cells after restoration of its target protein...
January 23, 2017: Zhonghua Zhong Liu za Zhi [Chinese Journal of Oncology]
https://www.readbyqxmd.com/read/28103863/pharmacological-profile-of-the-aerial-parts-of-rubus-ulmifolius-schott
#14
Niaz Ali, Mohammad Shaoib, Syed Wadood Ali Shah, Ismail Shah, Muhammad Shuaib
BACKGROUND: As aerial parts of Rubus ulmifolius contains phytochemicals like flavonoids and tannins. And whereas flavonoids and tannins have antioxidant and antipyretic activity, hence, current work is carried out to screen crude methanolic extract of aerial parts of Rubus ulmifolius (Ru.Cr) and crude flavonoids rich extract of Rubus ulmifolius (Ru.F) for possible antioxidant and antipyretic activity. Ru.Cr and Ru.F are also tested for brine shrimps lethality bioassay. Ru.F is tested for the first time for possible antioxidant and antipyretic activity...
January 19, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28103619/pregnant-women-in-sport-climbing-is-there-a-higher-risk-for-preterm-birth
#15
Jan Drastig, David Hillebrandt, Werner Rath, Thomas Küpper
Sport climbing is a popular recreational sport with an increasing proportion of female athletes. International recommendations emphasize the physical and mental benefits of regular sport activity during any uncomplicated pregnancy. In this context, sport climbing is associated with a high risk potential.The aim of this study was to examine if there is a higher risk for preterm birth in active climbing athletes.Original manuscript.A retrospective self-report online survey in the German language collected data between September 2012 and November 2013...
January 19, 2017: Zeitschrift Für Geburtshilfe und Neonatologie
https://www.readbyqxmd.com/read/28103565/a-scan-line-forest-growing-based-hand-segmentation-framework-with-multipriority-vertex-stereo-matching-for-wearable-devices
#16
Yiyi Ren, Xiang Xie, Guolin Li, Zhihua Wang
A hand segmentation framework is proposed for 3-D hand gesture interaction for wearable devices. In this framework, all the objects in a scene are regarded as directed trees in a forest, and the problem of the hand segmentation can be converted into finding the target tree (called hand tree) in the forest with proper hand properties including color consistency, space consistency, disparity, and hand shape constraints. The forest grows scan-line by scan-line from high reliable regions to low reliable regions...
January 16, 2017: IEEE Transactions on Cybernetics
https://www.readbyqxmd.com/read/28103141/modification-of-the-genome-of-domestic-animals
#17
Samantha N Lotti, Kathryn M Polkoff, Marcello Rubessa, Matthew B Wheeler
In the past few years, new technologies have arisen that enable higher efficiency of gene editing. With the increase ease of using gene editing technologies, it is important to consider the best method for transferring new genetic material to livestock animals. Microinjection is a technique that has proven to be effective in mice but is less efficient in large livestock animals. Over the years, a variety of methods have been used for cloning as well as gene transfer including; nuclear transfer, sperm mediated gene transfer (SMGT), and liposome-mediated DNA transfer...
January 19, 2017: Animal Biotechnology
https://www.readbyqxmd.com/read/28101649/molecular-mechanism-of-sarcopenia-and-cachexia-recent-research-advances
#18
REVIEW
Kunihiro Sakuma, Wataru Aoi, Akihiko Yamaguchi
Skeletal muscle provides a fundamental basis for human function, enabling locomotion and respiration. Muscle loss occurs as a consequence of several chronic diseases (cachexia) and normal aging (sarcopenia). Although many negative regulators (atrogin-1, muscle ring finger-1, nuclear factor-kappaB (NF-κB), myostatin, etc.) have been proposed to enhance protein degradation during both sarcopenia and cachexia, the adaptation of these mediators markedly differs within both conditions. Sarcopenia and cachectic muscles have been demonstrated to be abundant in myostatin-linked molecules...
January 19, 2017: Pflügers Archiv: European Journal of Physiology
https://www.readbyqxmd.com/read/28101428/wide-field-and-highly-sensitive-angiography-based-on-optical-coherence-tomography-with-akinetic-swept-source
#19
Jingjiang Xu, Shaozhen Song, Wei Wei, Ruikang K Wang
Wide-field vascular visualization in bulk tissue that is of uneven surface is challenging due to the relatively short ranging distance and significant sensitivity fall-off for most current optical coherence tomography angiography (OCTA) systems. We report a long ranging and ultra-wide-field OCTA (UW-OCTA) system based on an akinetic swept laser. The narrow instantaneous linewidth of the swept source with its high phase stability, combined with high-speed detection in the system enable us to achieve long ranging (up to 46 mm) and almost negligible system sensitivity fall-off...
January 1, 2017: Biomedical Optics Express
https://www.readbyqxmd.com/read/28101402/identification-and-removal-of-laser-induced-noise-in-photoacoustic-imaging-using-singular-value-decomposition
#20
Emma R Hill, Wenfeng Xia, Matthew J Clarkson, Adrien E Desjardins
Singular value decomposition (SVD) was used to identify and remove laser-induced noise in photoacoustic images acquired with a clinical ultrasound scanner. This noise, which was prominent in the radiofrequency data acquired in parallel from multiple transducer elements, was induced by the excitation light source. It was modelled by truncating the SVD matrices so that only the first few largest singular value components were retained, and subtracted prior to image reconstruction. The dependency of the signal amplitude and the number of the largest singular value components used for noise modeling was investigated for different photoacoustic source geometries...
January 1, 2017: Biomedical Optics Express
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