... added in combination with compounds known to produce ROS, including selenite (Fig 3) Even though our findings are based on use of a lung carcinoma cell line, we strongly believe that the action of ... Effects of PycnogenolÒ on redox systems V Gandin et al A B Fig Protein levels of TrxR1 and TrxR1 ⁄ TrxR2 mRNA expression in the U1285 cell line (A) Western blot comparing TrxR1 protein levels ... presence of indicated concentrations of PycnogenolÒ for various time periods The PycnogenolÒ powder was solved in NaCl ⁄ Pi containing 25 mm Hepes The effect of PycnogenolÒ was also studied in combination...
Ngày tải lên: 30/03/2014, 02:20
... transients are accentuated in pathological conditions, suggesting the involvement of astrocytic Ca2+ transients in brain disorders, including epileptic seizures Interestingly, astrocytes also show ... followed by the spreading of Ca2+ transients in adjacent astrocytes to form intercellular Ca2+ waves by a mechanism of chemical coupling mediated by ATP In both cases, an increase in [Ca2+]i is driven ... synchronous SICs in small groups of contiguous neurons, followed by epilepsy-like firings [28] Interestingly, several antiepileptic agents, including valproate, gabapentin, and phenytoin, reduce astrocytic...
Ngày tải lên: 16/02/2014, 09:20
Tài liệu Báo cáo khoa học: "From HOPE en I''''ESPERANCE On the Role of Computational Neurolinguistics in Cross-Language Studies " pptx
... appropriate masculine/feminine indicators (Jayez, 1982) The issues are not whether human brains work in a universal fashion, but instead raise questions of how interpreted levels of representation, ... often generic and mark masculine, feminine, or plural (Gross, 1977; Goffic and McBride, 1975) And furthermore, these same articles often are not translated into meaning preserving sentences in ... results Because of the parallel activation of a l l meanings of each recognized word in HOPE, the determination of the phonetic representation of a recognized word determines the breadth of active...
Ngày tải lên: 21/02/2014, 20:20
Uptake of organic chemicals in plants Human exposure assessment ppt
... for the determination of protein-binding affinities (Heringa and Hermens, 2003) In addition to SPME, several techniques exist for the determination of freely dissolved concentrations of organic ... SPARC.8,9 Determining SPME Sampling Kinetics The SPME sampling kinetics were studied for a number of sample types in order to (1) determine the sampling time needed to ensure equilibrium sampling, (2) ... input of chemicals to soil, air, roots, and leaves as well as determination of metabolite formation Biomonitoring of soil pollution has been performed with success doing coring of trees growing...
Ngày tải lên: 05/03/2014, 20:20
Báo cáo khoa học: Involvement of lysine 1047 in type I collagen-mediated activation of polymorphonuclear neutrophils doc
... (contained within the cyclic peptide CTRKKHDNAQC derived from jararhagin disintegrin) is essential for binding to the I domain of a2 integrins [24] Similarly, members of the ‘lysine–threonine–serine ... a-amino group of the tissue inhibitor of metalloproteinases-2 NH2-terminal cysteine has been used to demonstrate the key role of this amino group in the inhibitory effect of tissue inhibitor of metalloproteinases-2 ... could induce a loss of effect Carbamylation has already been used to determine the role of specific amino acids in protein–protein interactions For instance, selective carbamylation of the a-amino...
Ngày tải lên: 07/03/2014, 06:20
Báo cáo khoa học: Enzymes of mannitol metabolism in the human pathogenic fungusAspergillus fumigatus– kinetic properties of mannitol-1-phosphate 5-dehydrogenase and mannitol 2-dehydrogenase, and their physiological implications pot
... concentrations of inhibitor The observed inhibition was, in each case, best described by competitive binding of coenzyme and adenine nucleotide Inhibition constants (KiEI) were obtained from nonlinear ts of ... constant level of Fru was not critical for determination of DKm (1.23 0.15) The KIE data in Table are instrumental in delineating the kinetic mechanism of AfM1PDH and AfM2DH, as described in the Discussion ... value of $ 3, indicates that NADH binds to the enzyme prior to binding of Fru6P The absence of a KIE on kcat Km for the substrate binding rst is a clear requirement of the strictly ordered kinetic...
Ngày tải lên: 14/03/2014, 23:20
Inside the Crisis - An Empirical Analysis of Banking Systems in Distress ppt
... evidenceof increaseddepositinterest rates A plausibleinterpretation these findingsis that bank safetynets have succeededin of keeping depositorsfrom fleeingdespitewidespreadinsolvencyin the bankingsystem ... by the findings of Kharas and Mishra (2000), who find that, in recent years, the main component of the large off-budget liabilities of developing countries is attributable to realizedcontingentliabilitiesfollowingfinancialcrises ... level in T and T+l, while in T+2 it is above that level In contrast, real credit slows down substantially beginning in the crisis year, with the growth rate declining by nine percentage points in...
Ngày tải lên: 15/03/2014, 14:20
Báo cáo khoa học: Involvement of Ech hydrogenase in energy conservation of Methanosarcina mazei pptx
... lacking In this study, we present the first biochemical proof that Ech hydrogenase is indeed an ion-translocating enzyme, and thus represents an additional energy-conserving coupling site in methanogenic ... advantage of washed inverted vesicle preparations of Ms mazei, which contain all essential membranebound proteins involved in energy conservation and which are suitable for the generation of electrochemical ... CO as the initial substrate When the oxidation of Fdred in the absence of CoMS-S-CoB was analysed in the washed vesicle prepara- Function of Ech in energy conservation tion, the rate of H2 production...
Ngày tải lên: 15/03/2014, 23:20
Báo cáo khoa học: "REPRESENTATION OF FEATURE SYSTEMS IN A NON-CONNECTIONIST MOLECULAR MACHINE" pptx
... supplying m i s s i n g features (e.g in vowel harmony), linking or delinking features a c c o r d i n g to the derived context (e.g in voice assimilation) Note that delinking in the present form of ... delinking in the present form of the machine consists of adding an inhibitory link leading to the feature to be delinked INFORMATION PROCESSING WITH THE MOLECULAR MACHINE The basic o p e r a t i o n p ... activation level of a node or a coalition of nodes in a connectionist network The vertical geometry of t i e r s determines the possibilities of linking; the e s s e n t i a l function of l i n k s...
Ngày tải lên: 18/03/2014, 02:20
Báo cáo khoa học: Human-blind probes and primers for dengue virus identification Exhaustive analysis of subsequences present in the human and 83 dengue genome sequences doc
... are present in the genome of interest and absent from the host genome as being ‘host-blind’ (human- blind, mosquito-blind, mouseblind, rat-blind, etc.) sequences The greater the number of changes ... dengue genomes n 16 Present in all dengue; absence in human not considered Human- blind one change away Human- blind two changes away Human- blind three changes away Human- blind four changes away 17 ... in dengue and human- blind for all possible changes of one, two, three or four nucleotides Several hundred human- blind sequences were identified, including those that were (a) present in each individual...
Ngày tải lên: 23/03/2014, 11:20
Báo cáo hóa học: " Research Article Joint Effects of Synchronization Errors of OFDM Systems in Doubly-Selective Fading Channels Wen-Long Chin1 and Sau-Gee Chen (EURASIP Member)2" pptx
... start of the lth symbol (excluding the CP with length NG ) at the time origin zero in the time coordinate The estimated ST can be found to be located in one of the following three regions of an OFDM ... is the power of the combined interference (including ISI and ICI) and AWGN E 3.3 Estimated ST located in bad-ST2 region In the Bad-ST2 region, nδ is within the range of ≤ nδ ≤ N − Since the derivation ... subcarrier index under the in uence of the SCFO Note that this result can be applied to the cases of r = (by setting nδ = 0) and r = To gain further insight into (28), the SIR ρ, under the in uence of...
Ngày tải lên: 21/06/2014, 22:20
Báo cáo hóa học: "Research Article Existence of Solutions for a Class of Elliptic Systems in RN Involving the p x , q x -Laplacia" pptx
... Fluids: Modeling and Mathematical Theory, vol 1748 of Lecture Notes in ˚z c Mathematics, Springer, Berlin, Germany, 2000 13 V V Zhikov, “Averaging of functionals of the calculus of variations ... Souto, “Existence of solutions for a class of problems in RN involving the p x Laplacian,” in Contributions to Nonlinear Analysis A Tribute to D G de Figueiredo on the Occasion of his 70th Birthday, ... bounded domain with a smooth boundary ∂Ω, N ≥ 2, p, q ∈ C Ω , p x > 1, q x > 1, for every x ∈ Ω The function F is assumed to be continuous in x ∈ Ω and of class C1 in u, υ ∈ R Introducing some natural...
Ngày tải lên: 22/06/2014, 03:20
Dissertation abstracts to evaluate effectiveness of AF systems in vo nhai district, thai nguyen province
... Chapter 1: Oveview of research issues 1.1 Studies of AF in the World 1.1.1 History of studies of AF in the world In history of AF development, King (1987) claimed that in medieval time in Europe, people ... change in thinking and way of doing business among local people, contributing to deterring life of deprivation and backwardness, gradually raising the villagers’ standard of living and repelling ... reliant on initial investing capital when constructing models 25 MINISTRY OF EDUCATION AND TRAINING THAI NGUYEN UNIVERSITY AM VAN VINH TO EVALUATE EFFECT OF AGROFORESTRY SYSTEMS IN VO NHAI DISTRICT...
Ngày tải lên: 14/07/2014, 13:23
Báo cáo toán học: "On the number of orthogonal systems in vector spaces over finite fields" ppsx
... Then, for every subset U ⊂ V of cardinality m, the number of (not necessarily induced) copies of H in U is (1 + o(1)) ms | Aut(H)| the electronic journal of combinatorics 15 (2008), #N32 d n ... number of copies of Kk in E is (1 + o(1)) |E|k −(k) q k! This implies that the number of the number of k-tuples of k mutually orthogonal vectors in E is also |E|k −(k) (1 + o(1)) q , k! completing ... He proved that every large subset of the set of vertices of an (n, d, λ)-graph contains the “correct” number of copies of any fixed small subgraph (Theorem 4.10 in [2]) Theorem 2.1 ([2]) Let H be...
Ngày tải lên: 07/08/2014, 15:22
Báo cáo y học: "Potential involvement of oxidative stress in cartilage senescence and development of osteoarthritis: oxidative stress induces chondrocyte telomere instability and downregulation of chondrocyte function" pptx
... Conclusion This study provides insight into the involvement of oxidative stress in the pathogenesis of OA from the viewpoint of oxidative stress induced genomic instability, especially telomere ... A: Detection of nitrotyrosine in aging and osteoarthritic cartilage: Correlation of oxidative damage with the presence of interleukin-1beta and with chondrocyte resistance to insulin-like growth ... the corresponding intact region from each donor Immunohistochemistry For immunostaining of human articular cartilage, paraffin blocks of articular cartilage tissues were prepared using standard...
Ngày tải lên: 09/08/2014, 06:22
Báo cáo y học: "Catabolic stress induces expression of hypoxia-inducible factor (HIF)-1α in articular chondrocytes: involvement of HIF-1α in the pathogenesis of osteoarthritis" ppt
... conditions, IL-1β-induced apoptosis was increased in hypoxic chondrocytes lacking HIF-1α, to twice R909 Our findings show the potential involvement of HIF-1α expression in the progression of articular ... In patients with OA, stronger expression of HIF-1α mRNA in chondrocytes was observed in degenerating regions than in intact regions from the same articular cartilage samples Our findings in human ... immunofluorescence staining with a specific probe We performed the analysis in human articular cartilage tissue in patients undergoing arthroplastic knee surgery The levels of immunostaining revealed...
Ngày tải lên: 09/08/2014, 06:23
Báo cáo y học: "Do synovial biopsies help to support evidence for involvement of innate immunity in the immunopathology of Behçet’s disease" pot
... stimulating an immune response in BD Most tissue studies of the pathophysiology of BD are conducted in skin One of the unique and diseasespecific features of BD is the occurrence of a positive skin ... elevated levels of IFN-γ, IL-12-p40 and IL-15; MIP3-α (macrophage inflammatory protein-3α); IP-10 (IFN-inducible protein-10); Mig (monokine induced by IFN-γ); iTac (interferon-inducible T cell ... studied in BD Studies of BD arthropathy dating back more than 30 years predominantly revealed neutrophillic infiltration, depending on the stage and treatment of the disease A more recent study of...
Ngày tải lên: 09/08/2014, 14:20
Báo cáo y học: " Involvement of mTOR signaling in sphingosylphosphorylcholine-induced hypopigmentation effects" pps
... activation of the serine/threonine mTOR protein kinase is involved in the inhibition of melanin synthesis in B16 melanoma cells [30] Because SPC triggers the activation of Akt, we Jeong et al Journal of ... quantifying the protein levels of the lysate and adjusting the protein concentrations with lysis buffer, 90 μL of each lysate containing the same amount of protein was placed in each well of a 96-well ... cells were incubated with SPC in the presence or absence of rapamycin, a specific mTOR inhibitor Addition of rapamycin significantly abolished the inhibition of melanin synthesis in SPC-treated...
Ngày tải lên: 10/08/2014, 10:20
Báo cáo y học: "Involvement of lipid rafts in adhesion-induced activation of Met and EGF" pdf
... Involvement of lipid rafts in adhesion-induced activation of Met and EGFR Ying-Che Lu1 and Hong-Chen Chen1,2,3,4* Graduate Institute of Biomedical Sciences, National Chung Hsing University, ... determinant for integrin-dependent membrane rafts trafficking and regulation of growth signalling [13] In this study, we set out to examine the mechanism for adhesion-induced activation of Met ... EGFR using human epidermal carcinoma A431 cells, in which EGFR and Met are overexpressed and constitutively activated Possible involvement of matrix proteins, matrix stiffness, integrin β1, Src,...
Ngày tải lên: 10/08/2014, 10:20