Tommy Sundqvist

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BACKGROUND The mechanism by which anaesthetic agents produce general anaesthesia is not yet fully understood. Retraction of neurites is an important function of individual neurones and neural plexuses during normal and pathological conditions, and it has been shown that such a retraction pathway exists in developing and mature neurones. We hypothesized that(More)
We have investigated the influence of fasting and lactovegetarian diet on intestinal and non-intestinal permeability in 5 patients with rheumatoid arthritis. We used low-molecular weight polyethyleneglycols (PEG 400) as probe molecules and a deterministic mathematical model to assess the permeability characteristics. Both intestinal and non-intestinal(More)
Nitric oxide (NO), produced by the inducible nitric oxide synthase (iNOS), is important in host defence against Mycobacterium tuberculosis in rodents, but the presence of high-output NO production in human tuberculosis has been controversial. We investigated iNOS and nitrotyrosine (Ntyr) expression in pleural (n = 7), pulmonary (n = 5) and lymph node(More)
Human serum albumin (HSA) conjugated to various extents with dinitrophenyl (DNP) groups and labelled with 125I was studied with regard to physicochemical properties and blood clearance after intravenous injection in mice. Increasing the degree of DNP conjugation increased the tendency to hydrophobic interaction, and increased the net negative charge.(More)
The objective was to study the expression of inducible nitric oxide synthase (NOS II) in and NO production by human blood neutrophils and in in vivo exudated neutrophils. Cellular expression of NOS II was evaluated by flow cytometry in whole blood, in isolated blood neutrophils, and in neutrophils obtained by exudation in vivo into skin chambers. Neutrophil(More)
OBJECTIVE Exclusive enteral nutrition (EEN) is a first-line treatment in children with active Crohn's disease (CD) but is seldom used in adults with active disease. The mode of action of EEN in suppressing mucosal inflammation is not fully understood, but modulation of intestinal microflora activity is one possible explanation. The aim of this study was to(More)
OBJECTIVE To compare total and intracellular oxidative activation of blood and synovial fluid (SF) neutrophils from patients with rheumatoid arthritis (RA) and other arthritides with blood donor neutrophils. METHODS Peripheral blood and SF samples were obtained from 26 gonarthritis patients (13 RA, 13 non-RA) attending the rheumatology unit for(More)
UNLABELLED In coeliac disease (CD) there is a gluten-induced small bowel enteropathy leading to malabsorption of various nutrients, vitamins and trace elements. Low levels of serum zinc have been reported in adults with untreated CD. In the present study we related the serum concentration of zinc to the morphology of the small bowel mucosa in 58 children,(More)
BACKGROUND In the response to T-helper cell (Th1)-type cytokines and interactions with pathogens, high levels of nitric oxide (NO) are produced by activated macrophages expressing the inducible NO synthase (iNOS). The role and importance of reactive nitrogen intermediates (RNIs) such as NO and peroxynitrite in the host response to diseases caused by(More)
Nitric oxide (NO) is formed by different cell types in the pancreas. In this study, inhibition of endogenous nitric oxide by N(omega)-nitro-L-arginine (L-NNA) reduced the urinary excretion of NO(2)/NO(3) and raised serum L-arginine and the NO donator S-nitroso-N-acetylpenicillamine (SNAP) increased the urinary excretion of NO(2)/NO(3). The peptide(More)