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https://www.readbyqxmd.com/read/27924510/global-protein-expression-analysis-of-molecular-markers-of-ds-1-47-a-component-of-implantation-promoting-traditional-chinese-medicine
#1
Yan-Ling Li, Xiao-Yan Zhang, Yu Leng, Yan-Li Wu, Jing Li, Yun-Xia Wu
This study investigated the molecular markers of DS-1-47, a component of an implantation- promoting traditional Chinese medicine consisting of Astragalus mongholicus, Atractylodes macrocephala, Scutellaria baicalensis and Dipsacales, in an attempt to clarify the molecular mechanism and action targets of DS-1-47. Controlled ovarian stimulation (COS) method was used to establish the implantation dysfunction models of mice. Animals were divided into normal pregnant group, COS model group and DS-1-47 group. Laser capture microdissection-double dimensional electrophoresis-mass spectrum (LCM-DE-MS) was used to analyze the uterine protein molecules that were possibly involved in the promotion of implantation...
December 2016: Journal of Huazhong University of Science and Technology. Medical Sciences
https://www.readbyqxmd.com/read/27923975/efficacy-of-nonselective-optogenetic-control-of-the-medial-septum-over-hippocampal-oscillations-the-influence-of-speed-and-implications-for-cognitive-enhancement
#2
Benjamin J Blumberg, Sean P Flynn, Sylvain J Barriere, Philippe R Mouchati, Rod C Scott, Gregory L Holmes, Jeremy M Barry
Optogenetics holds great promise for both the dissection of neural circuits and the evaluation of theories centered on the temporal organizing properties of oscillations that underpin cognition. To date, no studies have examined the efficacy of optogenetic stimulation for altering hippocampal oscillations in freely moving wild-type rats, or how these alterations would affect performance on behavioral tasks. Here, we used an AAV virus to express ChR2 in the medial septum (MS) of wild-type rats, and optically stimulated septal neurons at 6 Hz and 30 Hz...
December 2016: Physiological Reports
https://www.readbyqxmd.com/read/27923735/a-shadow-detector-for-photosynthesis-efficiency
#3
Kang-Ling Liao, Roger D Jones, Patrick McCarter, Meral Tunc-Ozdemir, James A Draper, Timothy C Elston, David Kramer, Alan M Jones
Plants tolerate large variations in the intensity of the light environment by controlling the efficiency of solar to chemical energy conversion. To do this, plants have a mechanism to detect the intensity, duration, and change in light as they experience moving shadows, flickering light, and cloud cover. Sugars are the primary products of CO2 fixation, a metabolic pathway that is rate limited by this solar energy conversion. We propose that sugar is a signal encoding information about the intensity, duration and change in the light environment...
December 3, 2016: Journal of Theoretical Biology
https://www.readbyqxmd.com/read/27918822/growth-differentiation-factor-15-induced-contractile-activity-and-extracellular-matrix-production-in-human-trabecular-meshwork-cells
#4
Arumugam Ramachandran Muralidharan, Rupalatha Maddala, Nikolai P Skiba, Ponugoti Vasantha Rao
Purpose: To determine the role and regulation of growth differentiation factor-15 (GDF-15), a TGF-β-related cytokine in human trabecular meshwork (TM) cells in the context of aqueous humor (AH) outflow and IOP. Methods: Regulation of expression by external cues, and the distribution and secretion of GDF-15 by human TM primary cell cultures, and the effects of recombinant (r) GDF-15 on TM cell contractile characteristics, actin cytoskeleton, cell adhesion, extracellular matrix (ECM), α-smooth muscle actin (αSMA), SMAD signaling, and gene expression were determined by immunoblot, immunofluorescence, mass spectrometry, cDNA microarray, and real-time quantitative PCR (RT-qPCR) analyses...
December 1, 2016: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/27918730/il-4-induces-the-formation-of-multinucleated-giant-cells-and-expression-of-%C3%AE-5-integrin-in-central-giant-cell-lesion
#5
A Aghbali, S Rafieyan, L Mohamed-Khosroshahi, B Baradaran, D Shanehbandi, M Kouhsoltani
BACKGROUND: It is now well established that IL-4 has a central role in the development of monocytes to multinucleated giant cells (MGCs) by inducing the expression of integrins on the surface of monocytes. The aim of this study was to investigate the potential role of IL-4 in induction of β5 integrin expression in the peripheral blood samples of patients with giant cell granuloma. MATERIAL AND METHODS: Monocytes were isolated from peripheral blood samples of patients with central giant cell granuloma (CGCG) and healthy controls using human Monocyte Isolation Kit II...
December 6, 2016: Medicina Oral, Patología Oral y Cirugía Bucal
https://www.readbyqxmd.com/read/27918005/a-review-of-melasma-treatment-focusing-on-laser-and-light-devices
#6
Janet Y Li, Elizabeth Rc Geddes, Deanne M Robinson, Paul M Friedman
Melasma is a pigmentary disorder of unclear etiology with numerous treatment options and high recurrence rates. Laser and light therapies may be utilized cautiously as second- or third-line options for recalcitrant melasma, but low-energy settings are preferred due to the risk of postinflammatory hyperpigmentation and melasma stimulation. Commonly used lasers include the low-fluence 1064-nm Q-switched neodymium-doped yttrium aluminum garnet laser, nonablative fractionated lasers, and intense pulsed light. Strict sun protection, concomitant use of bleaching agents, and maintenance treatments are necessary...
December 2016: Seminars in Cutaneous Medicine and Surgery
https://www.readbyqxmd.com/read/27917935/the-effects-of-light-exposure-during-incubation-on-embryonic-development-and-hatchling-traits-in-lizards
#7
Yong-Pu Zhang, Shu-Ran Li, Jun Ping, Shi-Wen Li, Hua-Bin Zhou, Bao-Jun Sun, Wei-Guo Du
Light is an environmental factor that is known to profoundly affect embryonic development in some oviparous vertebrates, but such effects are unstudied in reptiles. We investigated the light sensitivity of lizard embryos by examining the thickness and light transmittance of eggshells as well as the effect of light on embryonic development and hatchling traits in four lizard species, the Chinese skink (Plestiodon chinensis), the northern grass lizard (Takydromus septentrionalis), the oriental leaf-toed gecko (Hemidactylus bowringii) and the Japanese gecko (Gekko japonicus)...
December 5, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27917748/making-brains-run-faster-are-they-becoming-smarter
#8
Anja Pahor, Norbert Jaušovec
A brief overview of structural and functional brain characteristics related to g is presented in the light of major neurobiological theories of intelligence: Neural Efficiency, P-FIT and Multiple-Demand system. These theories provide a framework to discuss the main objective of the paper: what is the relationship between individual alpha frequency (IAF) and g? Three studies were conducted in order to investigate this relationship: two correlational studies and a third study in which we experimentally induced changes in IAF by means of transcranial alternating current stimulation (tACS)...
December 5, 2016: Spanish Journal of Psychology
https://www.readbyqxmd.com/read/27917616/effect-of-redox-modifying-agents-on-the-activity-of-channelrhodopsin-2
#9
Bao-Ming Wu, Tian-Dong Leng, Koichi Inoue, Jun Li, Zhi-Gang Xiong
BACKGROUND: The algal protein Channelrhodopsin-2 (ChR2) has been widely used in recent years in optogenetic technique to investigate the functions of complex neuronal networks through minimally invasive and temporally precise photostimulation of genetically defined neurons. However, as with any other new technique, current optogentic approaches have various limitations. In addition, how ChR2 may behave in response to complex biochemical changes associated with various physiological/pathological conditions is largely unknown...
December 4, 2016: CNS Neuroscience & Therapeutics
https://www.readbyqxmd.com/read/27917311/rock-inhibition-promotes-attachment-proliferation-and-wound-closure-in-human-embryonic-stem-cell-derived-retinal-pigmented-epithelium
#10
Roxanne H Croze, William J Thi, Dennis O Clegg
PURPOSE: Nonexudative (dry) age-related macular degeneration (AMD), a leading cause of blindness in the elderly, is associated with the loss of retinal pigmented epithelium (RPE) cells and the development of geographic atrophy, which are areas devoid of RPE cells and photoreceptors. One possible treatment option would be to stimulate RPE attachment and proliferation to replace dying/dysfunctional RPE and bring about wound repair. Clinical trials are underway testing injections of RPE cells derived from pluripotent stem cells to determine their safety and efficacy in treating AMD...
November 2016: Translational Vision Science & Technology
https://www.readbyqxmd.com/read/27916963/neuron-stimulation-device-integrated-with-silicon-nanowire-based-photodetection-circuit-on-a-flexible-substrate
#11
Suk Won Jung, Jong Yoon Shin, Kilwha Pi, Yong Sook Goo, Dong-Il Dan Cho
This paper proposes a neural stimulation device integrated with a silicon nanowire (SiNW)-based photodetection circuit for the activation of neurons with light. The proposed device is comprised of a voltage divider and a current driver in which SiNWs are used as photodetector and field-effect transistors; it has the functions of detecting light, generating a stimulation signal in proportion to the light intensity, and transmitting the signal to a micro electrode. To show the applicability of the proposed neural stimulation device as a high-resolution retinal prosthesis system, a high-density neural stimulation device with a unit cell size of 110 × 110 μ m and a resolution of 32 × 32 was fabricated on a flexible film with a thickness of approximately 50 μm...
December 1, 2016: Sensors
https://www.readbyqxmd.com/read/27916117/specific-mixing-facilitates-the-comparative-quantification-of-phosphorylation-sites-with-significant-dysregulations
#12
Jing Liu, Bo Xu, Zheyi Liu, Mingming Dong, Jiawei Mao, Ye Zhou, Jin Chen, Fangjun Wang, Hanfa Zou
Mass spectrometry (MS) based quantitative analyses of proteome and proteome post-translational modifications (PTMs) play more and more important roles in biological, pharmaceutical and clinical studies. However, it is still a big challenge to accurately quantify the proteins or proteins PTM sites with extreme relative abundances in comparative protein samples, such as the significantly dysregulated ones. Herein, a novel quantification strategy, Mixing at Specific Ratio (MaSR) before isotope labeling, had been developed to improve the quantification accuracy and coverage of extreme proteins and protein phosphorylation sites...
January 15, 2017: Analytica Chimica Acta
https://www.readbyqxmd.com/read/27913590/control-of-spike-transfer-at-hippocampal-mossy-fiber-synapses-in-vivo-by-gabaa-and-gabab-receptor-mediated-inhibition
#13
Stefano Zucca, Marilena Griguoli, Meryl Malézieux, Noëlle Grosjean, Mario Carta, Christophe Mulle
: Despite extensive studies in hippocampal slices and incentive from computational theories, the synaptic mechanisms underlying information transfer at mossy fiber (mf) connections between the dentate gyrus (DG) and CA3 neurons in vivo are still elusive. Here we used an optogenetic approach in mice to selectively target and control the activity of DG granule cells (GCs) while performing whole cell and juxtacellular recordings of CA3 neurons in vivo In CA3 pyramidal cells (PCs), mf-CA3 synaptic responses consisted predominantly of an inhibitory postsynaptic potential (IPSP) at low stimulation frequency (0...
December 2, 2016: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/27911934/efficacy-of-noninvasive-stellate-ganglion-blockade-performed-using-physical-agent-modalities-in-patients-with-sympathetic-hyperactivity-associated-disorders-a-systematic-review-and-meta-analysis
#14
Chun-De Liao, Jau-Yih Tsauo, Tsan-Hon Liou, Hung-Chou Chen, Chi-Lun Rau
BACKGROUND: Stellate ganglion blockade (SGB) is mainly used to relieve symptoms of neuropathic pain in conditions such as complex regional pain syndrome and has several potential complications. Noninvasive SGB performed using physical agent modalities (PAMs), such as light irradiation and electrical stimulation, can be clinically used as an alternative to conventional invasive SGB. However, its application protocols vary and its clinical efficacy remains controversial. This study investigated the use of noninvasive SGB for managing neuropathic pain or other disorders associated with sympathetic hyperactivity...
2016: PloS One
https://www.readbyqxmd.com/read/27905125/gadd45%C3%AE-is-involved-in-the-apoptosis-of-lymphocytes-induced-by-riboflavin-and-ultraviolet-light
#15
Peng Yang, Huiqin Wen, Tao Zhong, Hailiang Hu, Bangqiang Zhu, Kang Xia, Mo Xu, Maohong Bian
BACKGROUND: Riboflavin plus ultraviolet (UV) pathogen reduction technology (RF-PRT) is an effective method for inactivating the residual white blood cells (WBCs) in blood components. The RF-PRT system for platelets is known to activate many signaling pathways, including p38 and NF-κB. Nevertheless, proteomic studies in WBCs after riboflavin plus UV treatment requires further analysis. STUDY DESIGN AND METHODS: ABO/D-matched lymphocytes were pooled, split, and treated with RF-PRT or UV light or left untreated...
December 1, 2016: Transfusion
https://www.readbyqxmd.com/read/27903742/p2y6-receptor-antagonist-mrs2578-inhibits-neutrophil-activation-and-aggregated-neutrophil-extracellular-trap-formation-induced-by-gout-associated-monosodium-urate-crystals
#16
Payel Sil, Craig P Hayes, Barbara J Reaves, Patrick Breen, Shannon Quinn, Jeremy Sokolove, Balázs Rada
Human neutrophils (polymorphonuclear leukocytes [PMNs]) generate inflammatory responses within the joints of gout patients upon encountering monosodium urate (MSU) crystals. Neutrophil extracellular traps (NETs) are found abundantly in the synovial fluid of gout patients. The detailed mechanism of MSU crystal-induced NET formation remains unknown. Our goal was to shed light on possible roles of purinergic signaling and neutrophil migration in mediating NET formation induced by MSU crystals. Interaction of human neutrophils with MSU crystals was evaluated by high-throughput live imaging using confocal microscopy...
November 30, 2016: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/27902969/rac1-gtp-ase-signals-wnt-beta-catenin-pathway-mediated-integrin-directed-metastasis-associated-tumor-cell-phenotypes-in-triple-negative-breast-cancers
#17
Pradip De, Jennifer H Carlson, Tyler Jepperson, Scooter Willis, Brian Leyland-Jones, Nandini Dey
The acquisition of integrin-directed metastasis-associated (ID-MA) phenotypes by Triple-Negative Breast Cancer (TNBC) cells is caused by an upregulation of the Wnt-beta-catenin pathway (WP). We reported that WP is one of the salient genetic features of TNBC. RAC-GTPases, small G-proteins which transduce signals from cell surface proteins including integrins, have been implicated in tumorigenesis and metastasis by their role in essential cellular functions like motility. The collective percentage of alteration(s) in RAC1 in ER+ve BC was lower as compared to ER-ve BC (35% vs 57%) (brca/tcga/pub2015)...
November 25, 2016: Oncotarget
https://www.readbyqxmd.com/read/27901585/a-review-of-positron-emission-tomography-studies-exploring-the-dopaminergic-system-in-substance-use-with-a-focus-on-tobacco-as-a-co-variate
#18
Thulasi Thiruchselvam, Saima Malik, Bernard Le Foll
With the evolving sensitivity of positron emission tomography (PET) and the emergence of novel radiotracers, greater insight has been gained into the dopaminergic system as it relates to substance use. In this review, we summarize PET investigations from the last ten years that explore the dopaminergic system in tobacco, alcohol, stimulant, opiates, and cannabis addiction. In light of the prevalence of substance co-use, this review will also explore the effect of tobacco and other substance abuse co-morbidity on the dopaminergic system across study samples in the reviewed literature...
November 30, 2016: American Journal of Drug and Alcohol Abuse
https://www.readbyqxmd.com/read/27901148/ligand-dependent-exciton-dynamics-and-photovoltaic-properties-of-pbs-quantum-dot-heterojunction-solar-cells
#19
Jin Chang, Yuhei Ogomi, Chao Ding, Yao Hong Zhang, Taro Toyoda, Shuzi Hayase, Kenji Katayama, Qing Shen
The surface chemistry of colloidal quantum dots (QDs) plays an important role in determining the photoelectric properties of QD films and the corresponding quantum dot heterojunction solar cells (QDHSCs). To investigate the effects of the ligand structure on the photovoltaic performance and exciton dynamics of QDHSCs, PbS QDHSCs were fabricated by the solid state ligand exchange method with mercaptoalkanoic acid as the cross-linking ligand. Temperature-dependent photoluminescence and ultrafast transient absorption spectra show that the electronic coupling and charge transfer rate within QD ensembles were monotonically enhanced as the ligand length decreased...
November 30, 2016: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/27901111/optogenetic-clustering-of-cnk1-reveals-mechanistic-insights-in-raf-and-akt-signalling-controlling-cell-fate-decisions
#20
Adrian Fischer, Bettina Warscheid, Wilfried Weber, Gerald Radziwill
Scaffold proteins such as the multidomain protein CNK1 orchestrate the signalling network by integrating and controlling the underlying pathways. Using an optogenetic approach to stimulate CNK1 uncoupled from upstream effectors, we identified selective clusters of CNK1 that either stimulate RAF-MEK-ERK or AKT signalling depending on the light intensity applied. OptoCNK1 implemented in MCF7 cells induces differentiation at low light intensity stimulating ERK activity whereas stimulation of AKT signalling by higher light intensity promotes cell proliferation...
November 30, 2016: Scientific Reports
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