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Cross-relaxation between macromolecular and solvent spins: the role of long-range dipole couplings.
Nuclear spin relaxation by intermolecular dipole–dipole interactions between macromolecular and solvent nuclear moments forms the basis of a widely used method for investigating macromolecular solvation. In particular, intermolecular cross-relaxation [or nuclear Overhauser effect (NOE)] between protein and water protons has been used to probe the mobility of water molecules interacting with the pr
Arsenic trioxide-induced neuroblastoma cell death is accompanied by proteolytic activation of nuclear Bax.
Arsenic trioxide (As2O3) is toxic to multidrug-resistant neuroblastoma cells in vivo and in vitro. In neuroblastoma, As2O3 does not exert its cell death-promoting effects via a classical apoptotic pathway. A death mechanism involving proteolytic cleavage of Bax to a p18 form seems to be of importance, because inhibition of Bax cleavage coincides with diminished cell death. As existing models of ce
ECG Quantification of Myocardial Scar in Cardiomyopathy Patients With or Without Conduction Defects Correlation With Cardiac Magnetic Resonance and Arrhythmogenesis
Background-Myocardial scarring from infarction or nonischemic fibrosis forms arrhythmogenic substrate. The Selvester QRS score has been extensively validated for estimating myocardial infarction scar size in the absence of ECG confounders. but has not been tested to quantify scar in patients with hypertrophy, bundle branch/fascicular blocks, or nonischemic cardiomyopathy. We assessed the hypothese
Capture of bacterial endotoxins using a supermacroporous monolithic matrix with immobilized polyethyleneimine, lysozyme or polymyxin B
Bacterial endotoxins (BEs) are integrated part of Escherichia coli, a microorganism widely used for the production of recombinant proteins. BEs should be eliminated in the course of down stream processing of target protein produced by these bacteria. Supermacroporous monolith (continuous bed) columns, so called cryogel columns, with immobilized polyethyleneimine (PEI), polymyxin B (PMB) and lysozy
Are there any clinical characteristics of depression in elderly people that could be useful for case finding in general practice?
OBJECTIVES: The aim of this study was to identify clinical characteristics of depression in elderly people that could be useful for case finding in general practice. DESIGN: A cross-sectional study of clinical characteristics through review of medical records. SETTING: Herrhagen health centre, Karlstad, Sweden. SUBJECTS: Seventy-one persons with a high depressive score in a screening of depressive
Equity is out of fashion? An essay on autonomy and health policy in the individualized society
It is widely recognized that there is a discrepancy between principle and practice with respect to the health equity aim of public policy. This discrepancy is analyzed from two theoretical perspectives: the individualization of society and the fact that individual beliefs and values are connected to one’s position in the social structure. These mechanisms influence both the choice of health policy
Aquaporin gating
An acceleration in the rate at which new aquaporin structures are determined means that structural models are now available for mammalian AQP0, AQP1, AQP2 and AQP4, bacterial GlpF, AqpM and AQPZ, and the plant SoPIP2;1. With an apparent consensus emerging concerning the mechanism of selective water transport and proton extrusion, emphasis has shifted towards the issues of substrate selectivity and
Post-2012 climate action in the broad framework of sustainable development policies: the role of the EU
The linkages between climate change and sustainable development are multiple and profound. Nonetheless, their respective policy regimes have so far evolved along parallel, if not competing, paths. What is lacking to date is a detailed conceptual understanding of the practicability of their integration through cross-sectoral policies and programmes. We propose a synergistic adaptive capacity (SAC)
Ethics of screening for asymptomatic herpes virus type 2 infection
Democratization and Women's Empowerment: The Effects of Electoral Systems, Participation and Repetition in Africa.
This article investigates three hypotheses suggested in the literature on women's political empowerment, operationalized here as increased legislative representation. These hypotheses are that (1) electoral systems manipulate women's political empowerment; (2) increased popular participation empowers women in particular; and (3) accumulated experience gained over several electoral cycles facilitat
Ghrelin activates neuronal constitutive nitric oxide synthase in pancreatic islet cells while inhibiting insulin release and stimulating glucagon release.
Abstract is not available. This is the final, accepted and revised manuscript of this article. Use alternative location to go to the published article. Requires subscription.
The potential of polymeric cryogels in bioseparation
This is a review discussing the production and properties of cryogels (from the Greek κριoσ (kryos) meaning frost or ice), immobilization of ligands in cryogels and the application of affinity cryogels in bioseparation. Cryotropic gel formation proceeds in a non-frozen liquid microphase existing in the macroscopically frozen sample. Due to the cryoconcentration of gel precursors in the non-frozen
Two major classes in the M protein family in group A streptococci
The M protein family of molecules in the group A streptococcus comprises a number of cell surface proteins that interact with the immune system of the host. One of the proteins in this family is the IgA receptor Arp4, which has C repeats similar to those that characterize the known M proteins. The streptococcal strain expressing Arp4 also expresses a second immunoglobulin-binding protein, Mrp4, wh
Gastric inflammation, metaplasia, and tumor development in gastrin-deficient mice
Background & Aims: Gastrin deficiency and proton pump inhibitor treatment cause achlorhydria, which predisposes to disease. To elucidate the underlying molecular biology, we examined the changes in gastric gene expression in both types of achlorhydria. We also explored the associated changes in the gastric microflora and the long-term consequences of gastrin-deficient achlorhydria. Methods: Ex
Charged-particle multiplicity at mid-rapidity in Au-Au collisions at relativistic heavy-ion collider
The particle density at mid-rapidity is an essential global variable for the characterization of nuclear collisions at ultra-relativistic energies. It provides information about the initial conditions and energy density reached in these collisions. The pseudorapidity densities of charged particles at mid-rapidity in Au+Au collisions at roots(NN) 130 and 200 GeV at RHIC (relativistic heavy ion coll
Met and unmet nursing care needs in men with prostate cancer. An explorative study. Part II.
Men with prostate cancer (n = 11) were interviewed during an in-patient period at a urological clinic, about their experiences of met and unmet needs from health professionals. Their perception of quality of life and sense of coherence were also assessed. The findings were analysed from a phenemenological-hermeneutic perspective and interpreted within the concept of transition. It was interpreted
Separation of Polyphosphoinositides Using Normal-Phase High-Performance Liquid Chromatography and Evaporative Light Scattering Detection or Electrospray Mass Spectrometry
Leading edge vortex improves lift in slow-flying bats
Staying aloft when hovering and flying slowly is demanding. According to quasi-steady-state aerodynamic theory, slow-flying vertebrates should not be able to generate enough lift to remain aloft. Therefore, unsteady aerodynamic mechanisms to enhance lift production have been proposed. Using digital particle image velocimetry, we showed that a small nectar-feeding bat is able to increase lift by as
Functionally associated targets in mantle cell lymphoma as defined by DNA microarrays and RNA interference
Mantle cell lymphoma (MCL) is a non-Hodgkin lymphoma with poor prognosis. Its hallmark is the translocation t(11:14)q (13;32), leading to overexpression of cyclin D1, a positive regulator of the cell cycle. As cyclin D1 up-regulation is not sufficient for inducing malignant transformation, we combined DNA microarray and RNA interference (RNAi) approaches to identify novel deregulated genes involve