... Polytrauma in the elderly: predictors of the cause and time of death Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine 2010, 18:26 Page of ... age and hospital type Statistical signifi- Page of cance was assumed at the p < 0.05 level Primary outcome was time and cause of death according to age, ISS and PMC Results Comparability of data ...
Ngày tải lên: 13/08/2014, 23:21
... key features of PDH specificity and mode of inhibition of the enzyme Results and Discussion Structural analysis and model quality Crystal structures of three different complexes of LlPDH have ... parameters (B-factors) and, where appropriate, the ligand occupancies Superposition of subunit A on B and C (468 Ca atoms) in complex II and III of LlPDH gives an rmsd of ˚ 1.6 A in each case, ... of B on C ˚ gives an rmsd of only 0.3 A We analysed this difference using the program dyndom [20] and identified a movement of the cofactor-binding domain of subunit A relative to subunits B and...
Ngày tải lên: 19/02/2014, 05:20
Báo cáo Y học: Structure, mechanism and function of prenyltransferases docx
... condensation kinetics and mechanism of trans-IPPS and cis-IPPS for the production of linear polyprenyl pyrophosphates, and the reaction mechanism and structures of protein prenyltransferases and isoprenyl ... diagram of Ras FTase and (B) the molecular ruler mechanism for substrate specificity of FTase and GGTase (A) The heterodimeric enzyme consists of two subunits, a and b, colored in cyan–blue and yellow–green, ... distribution of the UPPS and OPPS reactions is that, when the Ó FEBS 2002 Structure, mechanism and function of prenyltransferases (Eur J Biochem 269) 3347 concentration of the UPPS and FPP complex...
Ngày tải lên: 08/03/2014, 22:20
Báo cáo khoa học: Phosphorylation mechanism and structure of serine-arginine protein kinases pot
... SRPK1 and SRSF1, together with crystal structures of SRPK1 bound to peptide and protein substrates and the recent structures of CLK1 and CLK3, suggest an elegant mechanism of recognition and phosphorylation ... entry of SR proteins It has been shown that phosphorylation of the RS domain leads to enhanced interactions with the nuclear import receptor, transportin SR, and entry of SRPK structure and mechanism ... SRPK structure and mechanism G Ghosh and J A Adams spliceosome, a macromolecular complex composed of five small nuclear ribonucleoproteins (U1, U2, U4, U5, and U6) and over 100 auxiliary...
Ngày tải lên: 15/03/2014, 00:20
Báo cáo khoa học: Structure, signaling mechanism and regulation of the natriuretic peptide receptor guanylate cyclase pptx
... The actual and detailed mechanism of GC activation by ANP, namely the signal transduction mechanism, must await determination of NPRA’s GCD structure and ultimately the structure of full-length ... effects of ANP is also observed in saltdepleted rats; this occurs independent of the RAA and sympathetic systems, and is not caused by receptor downregulation [47] Although it is beyond the scope of ... determination of the native structures in the absence of crystal contacts and in solution conditions closer to those of the native environment The three-dimensional reconstructions of the apo-ECD dimer and...
Ngày tải lên: 28/03/2014, 23:20
Báo cáo khoa học: " Causes of Stillbirth and Time of Death in Swedish Holstein Calves Examined Post Mortem" potx
... effects of sex of calf and cause and time of death category on birth weights Results Table shows the distribution of calves in different cause- and- time of death categories Slightly less than half of ... unknown cause of death, and a third group comprising the other causes of death A wide variation in post mortem weights can be seen for all groups The clinically normal calves with unknown cause of death ... recording of sex missing for a calves, b calves Acta vet scand vol 44 no 3-4, 2003 Stillbirth and death in calves 115 Table Post mortem weights of calves (kg) in different cause- and- time of death...
Ngày tải lên: 12/08/2014, 15:20
Mechanism and characteristics of photovoltaic responses in sandwiched ferroelectric plzt thin film devices
... (ω-scan) ki and kf is the incident and diffracted x-ray vector respectively, and ∆k = ki - kf The magnitude and orientation of both ki and kf are fixed, i.e vary the orientation of ∆k relative ... structure of the PLZT thin film sandwiched between the top and bottom electrodes and the mechanism of the photocurrent generation 66 Fig 4-6 In short circuit steady state, electron and hole ... used for imaging and material characterisation SEM offers the advantages of higher magnification, greater depth of focus and various modes of imaging [92] The working principle of SEM is illustrated...
Ngày tải lên: 14/09/2015, 08:42
X ray crystallographic study of yeast dcp1 and dcp2 proteins insights into the mechanism and regulation of eukaryotic mRNA decapping
... first year of rotation, Dr Qi Xie and Dr Mohan Balasubramanian at the ex-Institute of Molecular Agrobiology, for their guidance and patience I acknowledge the Institute of Molecular and Cell Biology ... Activity of mutants in the conserved patch of scDcp1p 70 Figure 15 Activity of mutants in the conserved patch of scDcp1p 72 Figure 16 Activity of mutants in the hydrophobic surface patch of scDcp1p ... mRNA decapping mechanism 101 List of Tables Table Summary of protein crystallization buffers 58 Table Data collection and refinement statistics of scDcp1p 60 Table Data collection and refinement...
Ngày tải lên: 14/09/2015, 12:28
Báo cáo khoa học: Dehydroepiandrosterone inhibits the proliferation and induces the death of HPV-positive and HPV-negative cervical cancer cells through an androgen- and estrogen-receptor independent mechanism pptx
... estrogen and androgen, because use of antagonists to androgen and estrogen receptors (flutamide and ICI 182,780, respectively), and letrozol, an inhibitor of the aromatase responsible for converting androgen ... 25 and 55 years old, and it is the second most common cause of death from cancer among Mexican women [21] Therefore, the aim of this work was to evaluate the effect of pharmacological doses of ... associated with the presence and risk of development of cancer Oral administration of DHEA to mice inhibits spontaneous breast cancer and chemically induced tumors of the lung and colon [7]; however,...
Ngày tải lên: 16/03/2014, 00:20
Báo cáo y học: "Ultra-low microcurrent in the management of diabetes mellitus, hypertension and chronic wounds: Report of twelve cases and discussion of mechanism of action"
... mellitus High levels of free radicals and the decline of antioxidant defense mechanisms lead to damage of cellular organelles and enzymes, increased lipid peroxidation, and development of insulin resistance ... defense, and therefore diabetic patients may have a defective intracellular antioxidant response that causes diabetic complications (11-13) The combination of the low levels of antioxidants and raised ... Popliteal and pedal pulses were absent bilaterally with poor capillary refill The left foot was red and inflamed up to and including the medial malleolus The lateral aspect of the great toe and second...
Ngày tải lên: 26/10/2012, 09:39
Tài liệu Báo cáo khoa học: Crystal structure of the cambialistic superoxide dismutase from Aeropyrum pernix K1 – insights into the enzyme mechanism and stability pdf
... (Fig 3A) Three of the ligands, OD2 of Asp165, NE2 of His79 and NE2 of His169, formed an equatorial plane The other protein ligand, NE2 of His31, bound to the metal, in the company of a water oxygen, ... polypeptides consisted of seven a-helices, a three-stranded antiparallel b-sheet and loops connecting these secondary structure elements The contents of the a-helix and b-strand were 50% and 11%, respectively ... coordinated with six ligands: the five same ligands in the Mn-reconstituted enzyme and an additional water oxygen, which, together with the OD2 of Asp165, the NE2 of His79 and the NE2 of His169, formed...
Ngày tải lên: 14/02/2014, 22:20
Báo cáo khoa học: Purification and characterization of zebrafish hatching enzyme – an evolutionary aspect of the mechanism of egg envelope digestion pot
... min, bands with molecular masses of 43 and 39 kDa were observed in addition to undigested bands of ZP2 and ZP3 After incubation for 10 min, three major bands with molecular masses of 43, 39 and ... the mechanism of its egg envelope digestion and compared it with that of medaka hatching enzyme Finally, the evolution of the mechanism of egg envelope digestion is discussed on the basis of the ... of the manner of the reciprocal or cross-species egg envelope digestion using enzymes and substrates of both species: zebrafish and medaka Hatching enzyme of zebrafish Results Expression of zebrafish...
Ngày tải lên: 07/03/2014, 04:20
Báo cáo khoa học: Branched chain mechanism of polymerization and ultrastructure of prion protein amyloid fibrils ppt
... Branched chain mechanism of polymerization consistent with the mechanism of branched-chain reactions Employing the theory of branched-chain reactions will greatly benefit our understanding of the prion ... for extraction and purification of PrPSc involved sonication, treatment with detergents and, sometimes, freezing and thawing [49–51] All of these steps cause severe fragmentation of fibrils In our ... prion replication mechanisms With regards to the multiplication of active centers, both external cofactors and the intrinsic fragility of PrPSc fibrils should control the rate of multiplication...
Ngày tải lên: 07/03/2014, 10:20
Báo cáo Y học: Role of conserved residues within helices IV and VIII of the oxaloacetate decarboxylase b subunit in the energy coupling mechanism of the Na+ pump ppt
... fragment (IIIa) and transmembrane helices IV and VIII comprise the most highly conserved areas of the molecule, and within these areas D203, Y229, N373, G377, S382 and R389 have a profound functional ... important residues of helix IV, helix VIII and of region IIIa of the b subunit Also shown is the participation of these residues in the vectorial and chemical events of the Na+ pump (A) shows the empty ... of D203 and the Y229F mutation are inactive and because the N373L and S382A mutations require very high Na+ concentrations for activation The S382A mutation is of special interest because it...
Ngày tải lên: 08/03/2014, 23:20
solvent-controlled synthesis of tio2 1d nanostructures growth mechanism and characterization
... 8, 16 and 24 h, respectively, and (d) TiO2 nanotubes (sample S2); (e) HRTEM image of the sample S2 and the inset shows the enlarged picture of the tube wall; (f) HRTEM image of sample S1 and the ... to CO2 and was not related to the samples Also a band appears around 453 cmÀ1 for all the samples, which corresponds to a Ti–O band of anatase phase of TiO2 [27,28] The intensity of this band increases ... the FTIR spectra of the samples S1–S4 All the spectra show broad bands at 3435 and 1635 cmÀ1, which correspond to the presence of the OH group and water, absorbed on the surface of the TiO2 samples...
Ngày tải lên: 20/03/2014, 13:08
synthesis, growth mechanism and room-temperature blue luminescence emission of uniform wo3 nanosheets with w as starting material
... oxidation of W using hydrogen peroxide (H2O2) [35,36] In a typical synthesis, 6.5 g of W powder was dissolved into a mixed solution of 40.0 mL of H2O2 and 4.0 mL of H2O with an ice-water bath and stirring ... spaces are 0.385 and 0.376 nm in the 2D plane of a single nanosheet, which correspond to the plane distances of (0 2) and (0 0) planes, respectively And the angle between the (0 2) and (0 0) plane ... with the XRD result Fig 2a and b shows the FESEM image and TEM image of the as-synthesized WO3 nanosheets Uniform WO3 nanosheets with a thickness of $80 nm and length of $500 nm can be observed...
Ngày tải lên: 20/03/2014, 13:08
Cancer Research UK’s strategy 2009–2014: Cancer Research UK’s aim is to reduce the number of deaths from cancer. Our future plans are ambitious, but they are in line with the challenge and the responsibility we face. docx
... scale of the cancer problem and the impact it has on the lives of hundreds of thousands of people every year We have made huge steps forward in improving survival and in preventing thousands of ... from 46% in the 1970s Our work has been at the heart of this progress and has saved the lives of hundreds of thousands of people in the UK and many millions more around the world • We were the ... possible, strengthen a broad and balanced portfolio of world-class research in the UK, directed at understanding the biology and causes of cancer - Maintain a strong portfolio of basic biology research...
Ngày tải lên: 22/03/2014, 16:21
Báo cáo khoa học: Targeting mechanism of the retinoblastoma tumor suppressor by a prototypical viral oncoprotein Structural modularity, intrinsic disorder and phosphorylation of human papillomavirus E7 doc
... type, and on the developmental and cell cycle stages [7] The Rb protein has a molecular mass of 105 kDa and is composed of three domains Both the N-terminal and the AB (RbAB) domains consist of ... Ras [45] A complete understanding of the Rb protein function requires the dissection of all functional surfaces, along with their partners and the strength and mechanism of interaction [46] We have ... structural and thermodynamic understanding of the mechanisms of action of the Rb protein is far behind that of p53, the keeper of the genome, mutated in most cancers and targeted by the same DNA tumor...
Ngày tải lên: 22/03/2014, 21:20
Báo cáo khoa học: Identification and characterization of important residues in the catalytic mechanism of CMP-Neu5Ac synthetase from Neisseria meningitidis potx
... the docking studies of Mosimann et al [12], the hydroxyl group of Tyr179 lies within hydrogen-bonding 2784 distance of O7 and O9 of the glyceryl moiety of Neu5Ac, and a network of noncovalent bonds ... Percentage change of activity of wild-type CNS and mutants upon the addition of MgCl2 to a concentration of 10 mM The rate of reaction for each variant using 154 lM CTP and 615 lM Neu5Ac in standard reaction ... [5], this addition had no effect on the level of activity of the wild-type enzyme (Fig 6) This is probably because of the lower pH of our reaction and because the CTP concentrations used here were...
Ngày tải lên: 22/03/2014, 21:21
SECLUSIONSAND RESTRAINTS: Selected Cases of Death and Abuse at Public and Private Schools and Treatment Centers pot
... Department of Family and Protective Services alleged that the victim’s death was because of physical abuse, the official certificate of death stated that it was an accident and a grand jury declined ... collect and report this type of information include Kansas, Pennsylvania, and Rhode Island, but we did not obtain data from these states Cases of Death and Abuse Related to the Use of Restraints and ... including current and former school staff and officials, attorneys and law enforcement officials, and the parents of the victims We also attempted to obtain training policies on restraints and seclusions...
Ngày tải lên: 23/03/2014, 03:20