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Karbapenemresistenta Escherichia coli finns nu i Sverige

Escherichia coli som producerar ESBLCARBA, vilket bryter ner karbapenemer, har blivit allt vanligare utomlands. Stammar som producerar NDM-1 uppfattas som ett stort hot, eftersom de är multiresistenta och ökar snabbt globalt. De fall av NDM-1 som tidigare påvisats i Sverige har isolerats från patienter som blivit koloniserade i samband med resa eller vård utomlands. Vi presenterar här det första k

Quantitative Evaluation of Temporal Episode Patterns in Paroxysmal Atrial Fibrillation

Flow velocity in left atrial appendage decreases when paroxysmal atrial fibrillation (PAF) progresses to longer episodes, suggesting that the temporal PAF episode pattern may be related to risk of thrombus formation. This study investigates the feasibility of discriminating episode patterns based on two descriptors: the aggregation characterizes the temporal distribution of PAF episodes, whereas t

Memory for Problem Solving: Comparative Studies in Attention, Working and Long-term Memory

Living in a complex and dynamically changing environment requires accurate and timely behavioural responses that allow for adapting to such changes. Well-developed perceptual systems provide a continuous flow of abundant and up-to-date information on the changes in the environment, and, thereby, allow for tailoring behavioural responses accordingly. However, issuing any behavioral response would n

Substance P and vasoactive intestinal peptide in bullous and inflammatory skin disease.

Immunoreactivity (IR) of substance P (SP) and Vasoactive Intestinal Peptide (VIP) were determined by radioimmunoassay in serum of 56 patients with inflammatory skin diseases, in blister fluid of 40 patients with spontaneous blisters and 31 subjects with induced skin blisters. Serum concentrations of SP-IR and VIP-IR were mostly low or non-detectable. Spontaneous blisters contained high amounts of

The effect of capsaicin on some experimental inflammations in human skin.

Topical application of capsaicin is thought to deplete substance P from local sensory nerve terminals. In experiments on human skin inflammation was induced by injection of substance P (SP) or histamine intradermally, UV irradiation, non-immunologic contact urticaria, tuberculin reaction, contact allergens and benzalkonium chloride with or without capsaicin pretreatment. The flare response to SP a

Occurrence of substance P, vasoactive intestinal peptide and calcitonin gene-related peptide in dermographism and cold urticaria.

Substance P (SP), calcitonin gene-related peptide (CGRP), and vasoactive intestinal peptide (VIP) were assayed in lesions and normal skin of patients with dermographism and cold urticaria utilizing suction-induced blisters. There was no difference in SP and VIP concentrations between challenged and control skin of urticaria patients. On the whole, however, the concentration of both neuropeptides,

The politics of persuasion. : Opinion-shaping activities and gender equality in Sweden, 1960-1970

In this paper, the role and significance of opinion-shaping and persuasion activities are explored through an analysis of the activation of women in the Swedish labour market in the 1960s, highlighting the ways in which gender equality ideals became infused in these activities through a process of ‘transformative state feminism’. The analysis draws on qualitative data including archival material aIn this paper, the role and significance of opinion-shaping and persuasion activities are explored through an analysis of the activation of women in the Swedish labour market in the 1960s, highlighting the ways in which gender equality ideals became infused in these activities through a process of ‘transformative state feminism’. The analysis draws on qualitative data including archival material a

Effects of substance P, neurokinin A and calcitonin gene-related peptide in human skin and their involvement in sensory mediated responses.

The effects evoked by intradermal injections of substance P (SP), neurokinin A (NKA) or calcitonin gene-related peptide (CGRP) were studied in 51 non-atopic subjects. SP and NKA produced flare and weal, and CGRP produced an indurated erythema. The reactions to SP were strong, the flare being maximal 3–5 min after injection and the weal after 10–15 min. NKA evoked a much weaker flare and a slightly

Kinetics of DNA hydration

The hydration of the d(CGCGAATTCGCG) B-DNA duplex in solution was studied by nuclear magnetic relaxation dispersion (NMRD) of the water nuclei 1H, 2H, and 17O, and by nuclear Overhauser effects (NOEs) in high-resolution two-dimensional 1H NMR spectra. By comparing results from the free duplex with those from its complex with netropsin, water molecules in the 'spine of hydration' in the AATT region

Sequence and context dependence of EF-hand loop dynamics. An 15N relaxation study of a calcium-binding site mutant of calbindin D(9k)

The influence of amino acid sequence and structural context on the backbone dynamics of EF-hand calcium-binding loops was investigated using 15N spin relaxation measurements on the calcium-free state of the calbindin D(9k) mutant (A14D+A15Δ+P20Δ+N21G+P43M), in which the N-terminal pseudo- EF-hand loop, characteristic of S100 proteins, was engineered so as to conform with the C-terminal consensus E

Ca2+ binding and conformational changes in a calmodulin domain

Calcium activation of the C-terminal domain of calmodulin was studied using 1H and 15N NMR spectroscopy. The important role played by the conserved bidentate glutmate Ca2+ ligand in the binding loops is emphasized by the striking effects resulting from a mutation of this glutantic acid to a glutamine, i.e. E104Q in loop III and E140Q in loop IV. The study involves determination of Ca2+ binding con

1H NMR assignments of apo calcyclin and comparative structural analysis with calbindin d(9k) and s 100β

The homodimeric S100 protein calcyclin has been studied in the apo state by two-dimensional 1H NMR spectroscopy. Using a combination of scalar correlation and NOE experiments, sequence-specific 1H NMR assignments were obtained for all but one backbone and >90% of the side-chain resonances. To our knowledge, the 2 x 90 residue (20 kDa) calcyclin dimer is the largest protein system for which such co

Two-dimensional 1H nuclear magnetic resonance studies of the half-saturated (Ca2+)1 state of calbindin D9k : Further implications for the molecular basis of cooperative Ca2+ binding

Calbindin D9k exhibits cooperative binding of two calcium ions, hence study of the half-saturated states of the protein is critical to understanding the binding process. However, the half-saturated states are not significantly populated under equilibrium conditions. To circumvent this problem, an absolutely conserved glutamic acid residue in the C-terminal binding site (site II) has been mutated t

Counterion spin relaxation in microemulsion droplets

Counterion 23Na spin relaxation data are reported from the microemulsion phase in the AOT/water/isooctane system as a function of the water/AOT ratio, which determines the size of the aqueous droplets. The 23Na NMR measurements comprise three independent relaxation rates, allowing the individual spectral density values to be determined, as well as the second-order quadrupolar dynamic shift. The ef